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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Maine Deploys First U.S. Commercial, Grid-Connected Tidal Energy Project |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maine Deploys First U.S. Commercial, Grid-Connected Tidal Energy Maine Deploys First U.S. Commercial, Grid-Connected Tidal Energy Project Maine Deploys First U.S. Commercial, Grid-Connected Tidal Energy Project July 24, 2012 - 1:12pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON -- Today, Energy Secretary Steven Chu recognized the nation's first commercial, grid-connected tidal energy project off the coast of Eastport, Maine. Leveraging a $10 million investment from the Energy Department, Ocean Renewable Power Company (ORPC) will deploy its first commercial tidal energy device into Cobscook Bay this summer. The project, which injected $14 million into the local economy and has supported more than 100 local and supply chain jobs, represents the first tidal energy project in the United States with long-term contracts to sell electricity

2

First Commercial, Grid-Connected, Hydrokinetic Tidal Energy Project...  

Office of Science (SC) Website

Image courtesy of Ocean Renewable Power Company ORPC's TidGen(tm) turbine generator unit. R&D Opportunity Advanced water power technologies include devices capable of extracting...

3

MHK Projects/Piscataqua Tidal Hydrokinetic Energy Project | Open Energy  

Open Energy Info (EERE)

Piscataqua Tidal Hydrokinetic Energy Project Piscataqua Tidal Hydrokinetic Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.1055,"lon":-70.7912,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

4

MHK Projects/Indian River Tidal Hydrokinetic Energy Project | Open Energy  

Open Energy Info (EERE)

Tidal Hydrokinetic Energy Project Tidal Hydrokinetic Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.6853,"lon":-75.0694,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

5

Marine & hydrokinetic technology development.  

DOE Green Energy (OSTI)

The Wind and Water Power Program supports the development of marine and hydrokinetic devices, which capture energy from waves, tides, ocean currents, the natural flow of water in rivers, and marine thermal gradients, without building new dams or diversions. The program works closely with industry and the Department of Energy's national laboratories to advance the development and testing of marine and hydrokinetic devices. In 2008, the program funded projects to develop and test point absorber, oscillating wave column, and tidal turbine technologies. The program also funds component design, such as techniques for manufacturing and installing coldwater pipes critical for ocean thermal energy conversion (OTEC) systems. Rigorous device testing is necessary to validate and optimize prototypes before beginning full-scale demonstration and deployment. The program supports device testing by providing technology developers with information on testing facilities. Technology developers require access to facilities capable of simulating open-water conditions in order to refine and validate device operability. The program has identified more than 20 tank testing operators in the United States with capabilities suited to the marine and hydrokinetic technology industry. This information is available to the public in the program's Hydrodynamic Testing Facilities Database. The program also supports the development of open-water, grid-connected testing facilities, as well as resource assessments that will improve simulations done in dry-dock and closed-water testing facilities. The program has established two university-led National Marine Renewable Energy Centers to be used for device testing. These centers are located on coasts and will have open-water testing berths, allowing researchers to investigate marine and estuary conditions. Optimal array design, development, modeling and testing are needed to maximize efficiency and electricity generation at marine and hydrokinetic power plants while mitigating nearby and distant impacts. Activities may include laboratory and computational modeling of mooring design or research on device spacing. The geographies, resources, technologies, and even nomenclature of the U.S. marine and hydrokinetic technology industry have yet to be fully understood or defined. The program characterizes and assesses marine and hydrokinetic devices, and then organizes the collected information into a comprehensive and searchable Web-based database, the Marine and Hydrokinetic Technology Database. The database, which reflects intergovernmental and international collaboration, provides industry with one of the most comprehensive and up-to-date public resources on marine and hydrokinetic devices.

LiVecchi, Al (National Renewable Energy Laboratory); Jepsen, Richard Alan

2010-06-01T23:59:59.000Z

6

Study of the Acoustic Effects of Hydrokinetic Tidal Turbines in Admiralty Inlet, Puget Sound  

SciTech Connect

Hydrokinetic turbines will be a source of noise in the marine environment - both during operation and during installation/removal. High intensity sound can cause injury or behavioral changes in marine mammals and may also affect fish and invertebrates. These noise effects are, however, highly dependent on the individual marine animals; the intensity, frequency, and duration of the sound; and context in which the sound is received. In other words, production of sound is a necessary, but not sufficient, condition for an environmental impact. At a workshop on the environmental effects of tidal energy development, experts identified sound produced by turbines as an area of potentially significant impact, but also high uncertainty. The overall objectives of this project are to improve our understanding of the potential acoustic effects of tidal turbines by: (1) Characterizing sources of existing underwater noise; (2) Assessing the effectiveness of monitoring technologies to characterize underwater noise and marine mammal responsiveness to noise; (3) Evaluating the sound profile of an operating tidal turbine; and (4) Studying the effect of turbine sound on surrogate species in a laboratory environment. This study focuses on a specific case study for tidal energy development in Admiralty Inlet, Puget Sound, Washington (USA), but the methodologies and results are applicable to other turbine technologies and geographic locations. The project succeeded in achieving the above objectives and, in doing so, substantially contributed to the body of knowledge around the acoustic effects of tidal energy development in several ways: (1) Through collection of data from Admiralty Inlet, established the sources of sound generated by strong currents (mobilizations of sediment and gravel) and determined that low-frequency sound recorded during periods of strong currents is non-propagating pseudo-sound. This helped to advance the debate within the marine and hydrokinetics acoustic community as to whether strong currents produce propagating sound. (2) Analyzed data collected from a tidal turbine operating at the European Marine Energy Center to develop a profile of turbine sound and developed a framework to evaluate the acoustic effects of deploying similar devices in other locations. This framework has been applied to Public Utility District No. 1 of Snohomish Country's demonstration project in Admiralty Inlet to inform postinstallation acoustic and marine mammal monitoring plans. (3) Demonstrated passive acoustic techniques to characterize the ambient noise environment at tidal energy sites (fixed, long-term observations recommended) and characterize the sound from anthropogenic sources (drifting, short-term observations recommended). (4) Demonstrated the utility and limitations of instrumentation, including bottom mounted instrumentation packages, infrared cameras, and vessel monitoring systems. In doing so, also demonstrated how this type of comprehensive information is needed to interpret observations from each instrument (e.g., hydrophone data can be combined with vessel tracking data to evaluate the contribution of vessel sound to ambient noise). (5) Conducted a study that suggests harbor porpoise in Admiralty Inlet may be habituated to high levels of ambient noise due to omnipresent vessel traffic. The inability to detect behavioral changes associated with a high intensity source of opportunity (passenger ferry) has informed the approach for post-installation marine mammal monitoring. (6) Conducted laboratory exposure experiments of juvenile Chinook salmon and showed that exposure to a worse than worst case acoustic dose of turbine sound does not result in changes to hearing thresholds or biologically significant tissue damage. Collectively, this means that Chinook salmon may be at a relatively low risk of injury from sound produced by tidal turbines located in or near their migration path. In achieving these accomplishments, the project has significantly advanced the District's goals of developing a demonstration-scale tidal energy proj

Brian Polagye; Jim Thomson; Chris Bassett; Jason Wood; Dom Tollit; Robert Cavagnaro; Andrea Copping

2012-03-30T23:59:59.000Z

7

Field Measurements at River and Tidal Current Sites for Hydrokinetic Energy Development: Best Practices Manual  

SciTech Connect

In this report, existing data collection techniques and protocols for characterizing open channel flows are reviewed and refined to further address the needs of the MHK industry. The report provides an overview of the hydrodynamics of river and tidal channels, and the working principles of modern acoustic instrumentation, including best practices in remote sensing methods that can be applied to hydrokinetic energy site characterization. Emphasis is placed upon acoustic Doppler velocimeter (ADV) and acoustic-Doppler current profiler (ADCP) instruments, as these represent the most practical and economical tools for use in the MHK industry. Incorporating the best practices as found in the literature, including the parameters to be measured, the instruments to be deployed, the instrument deployment strategy, and data post-processing techniques. The data collected from this procedure aims to inform the hydro-mechanical design of MHK systems with respect to energy generation and structural loading, as well as provide reference hydrodynamics for environmental impact studies. The standard metrics and protocols defined herein can be utilized to guide field experiments with MHK systems.

Neary, Vincent S [ORNL; Gunawan, Budi [Oak Ridge National Laboratory (ORNL)

2011-09-01T23:59:59.000Z

8

GROWDERS Demonstration of Grid Connected Electricity Systems...  

Open Energy Info (EERE)

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid Project) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected Electricity...

9

GROWDERS Demonstration of Grid Connected Electricity Systems...  

Open Energy Info (EERE)

Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected Electricity Systems Country Spain Coordinates 40.338169, -3.438721 Loading map......

10

Utility Grid-Connected Distributed Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Grid-Connected Distributed Power Systems National Solar Energy Conference ASES Solar 96 Asheville, NC April 1996 Donald E. OsbornDavid E. Collier Sacramento Municipal Utility...

11

Marine and Hydrokinetic Resources | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Resources Marine and Hydrokinetic Resources Jump to: navigation, search << Return to the MHK database homepage Contents 1 Marine and Hydrokinetic Resource Assessment and Characterization 2 Current/Tidal/Riverine 3 Wave 4 Ocean Thermal Energy Conversion (OTEC) Marine and Hydrokinetic Resource Assessment and Characterization To find out more about Marine and Hydrokinetic Resource Assessment and Characterization click on this link. Current/Tidal/Riverine Tile Current.jpg To find out more about Tidal Energy click on this link and for Current Energy this link. Wave Wave 02.jpg To find out more about Wave Energy click on this link. Ocean Thermal Energy Conversion (OTEC) Ocean Thermo 04.jpg To find out more about OTEC Energy click on this link. << Return to the MHK database homepage

12

Marine and Hydrokinetic Resources | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Resources Marine and Hydrokinetic Resources (Redirected from Wave) Jump to: navigation, search << Return to the MHK database homepage Contents 1 Marine and Hydrokinetic Resource Assessment and Characterization 2 Current/Tidal/Riverine 3 Wave 4 Ocean Thermal Energy Conversion (OTEC) Marine and Hydrokinetic Resource Assessment and Characterization To find out more about Marine and Hydrokinetic Resource Assessment and Characterization click on this link. Current/Tidal/Riverine Tile Current.jpg To find out more about Tidal Energy click on this link and for Current Energy this link. Wave Wave 02.jpg To find out more about Wave Energy click on this link. Ocean Thermal Energy Conversion (OTEC) Ocean Thermo 04.jpg To find out more about OTEC Energy click on this link. << Return to the MHK database homepage

13

Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric | Open  

Open Energy Info (EERE)

Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric Jump to: navigation, search Tool Summary Name: Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric Agency/Company /Organization: United States Agency for International Development Sector: Energy Resource Type: Training materials Website: www.energytoolbox.org/gcre/mod_4/index.shtml Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric Screenshot References: Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric[1] Logo: Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric GCREhydro.JPG References ↑ "Grid-Connected Renewable Energy Generation Toolkit-Hydroelectric" Retrieved from "http://en.openei.org/w/index.php?title=Grid-Connected_Renewable_Energy_Generation_Toolkit-Hydroelectric&oldid=375082

14

Effects of Tidal Turbine Noise on Fish Hearing and Tissues - Draft Final Report - Environmental Effects of Marine and Hydrokinetic Energy  

Science Conference Proceedings (OSTI)

Snohomish Public Utility District No.1 plans to deploy two 6 meter OpenHydro tidal turbines in Admiralty Inlet in Puget Sound, under a FERC pilot permitting process. Regulators and stakeholders have raised questions about the potential effect of noise from the turbines on marine life. Noise in the aquatic environment is known to be a stressor to many types of aquatic life, including marine mammals, fish and birds. Marine mammals and birds are exceptionally difficult to work with for technical and regulatory reasons. Fish have been used as surrogates for other aquatic organisms as they have similar auditory structures. This project was funded under the FY09 Funding Opportunity Announcement (FOA) to Snohomish PUD, in partnership with the University of Washington - Northwest National Marine Renewable Energy Center, the Sea Mammal Research Unit, and Pacific Northwest National Laboratory. The results of this study will inform the larger research project outcomes. Proposed tidal turbine deployments in coastal waters are likely to propagate noise into nearby waters, potentially causing stress to native organisms. For this set of experiments, juvenile Chinook salmon (Oncorhynchus tshawytscha) were used as the experimental model. Plans exist for prototype tidal turbines to be deployed into their habitat. Noise is known to affect fish in many ways, such as causing a threshold shift in auditory sensitivity or tissue damage. The characteristics of noise, its spectra and level, are important factors that influence the potential for the noise to injure fish. For example, the frequency range of the tidal turbine noise includes the audiogram (frequency range of hearing) of most fish. This study was performed during FY 2011 to determine if noise generated by a 6-m diameter OpenHydro turbine might affect juvenile Chinook salmon hearing or cause barotrauma. Naturally spawning stocks of Chinook salmon that utilize Puget Sound are listed as threatened (http://www.nwr.noaa.gov/ESA-Salmon-Listings/Salmon-Populations/Chinook/CKPUG.cfm); the fish used in this experiment were hatchery raised and their populations are not in danger of depletion. After they were exposed to simulated tidal turbine noise, the hearing of juvenile Chinook salmon was measured and necropsies performed to check for tissue damage. Experimental groups were (1) noise exposed, (2) control (the same handling as treatment fish but without exposure to tidal turbine noise), and (3) baseline (never handled). Experimental results indicate that non-lethal, low levels of tissue damage may have occurred but that there were no effects of noise exposure on the auditory systems of the test fish.

Halvorsen, Michele B.; Carlson, Thomas J.; Copping, Andrea E.

2011-09-30T23:59:59.000Z

15

Selective compensation of voltage harmonics in grid-connected microgrids  

E-Print Network (OSTI)

1 Selective compensation of voltage harmonics in grid-connected microgrids Mehdi Savaghebia , Juan is proposed for selective compensation of main voltage harmonics in a grid- connected microgrid. The aim level. Keywords Distributed Generator (DG); microgrid; grid-connected; voltage harmonics compensation. 1

Vasquez, Juan Carlos

16

Evaluation of Fish Injury and Mortality Associated with Hydrokinetic Turbines  

Science Conference Proceedings (OSTI)

Considerable efforts have been underway to develop hydrokinetic energy resources in tidal and riverine environments throughout North America. Potential for fish to be injured or killed if they encounter hydrokinetic turbines is an issue of significant interest to resource and regulatory agencies. To address this issue, flume studies were conducted that exposed fish to two hydrokinetic turbine designs to determine injury and survival rates and to assess behavioral reactions and avoidance. Also, a theoreti...

2011-11-29T23:59:59.000Z

17

Case Studies of Grid-Connected Photovoltaic Systems, Vol. 1  

Science Conference Proceedings (OSTI)

This interim report documents a number of grid-connected photovoltaic (PV) case studies, covering a broad range of different system and project types.

2002-03-12T23:59:59.000Z

18

Modeling Grid-Connected Hybrid Electric Vehicles Using ADVISOR  

DOE Green Energy (OSTI)

Presents an electric utility grid-connected energy management strategy for a parallel hybrid electric vehicle using ADVISOR, a modeling tool.

Markel, T.; Wipke, K.

2001-01-01T23:59:59.000Z

19

Grid-Connected Renewable Energy Generation Toolkit-Geothermal...  

Open Energy Info (EERE)

for International Development Sector: Energy Focus Area: Geothermal Resource Type: Training materials Website: www.energytoolbox.orggcremod3index.shtml Grid-Connected...

20

Tidal Hydraulic Generators Ltd | Open Energy Information  

Open Energy Info (EERE)

Hydraulic Generators Ltd Jump to: navigation, search Name Tidal Hydraulic Generators Ltd Address 14 Thislesboon Drive Place Mumbles Zip SA3 4HY Sector Marine and Hydrokinetic Phone...

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Marine and Hydrokinetic Technology Database | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Database Marine and Hydrokinetic Technology Database Jump to: navigation, search Introduction The U.S. Department of Energy's Marine and Hydrokinetic Technology Database provides up-to-date information on marine and hydrokinetic renewable energy, both in the U.S. and around the world. The database includes wave, tidal, current, and ocean thermal energy, and contains information on the various energy conversion technologies, companies active in the field, and development of projects in the water. Depending on the needs of the user, the database can present a snapshot of projects in a given region, assess the progress of a certain technology type, or provide a comprehensive view of the entire marine and hydrokinetic energy industry. Using the Database (1) Map illustrates marine & hydrokinetic demonstration projects around the

22

Category:Marine and Hydrokinetic Technology Projects | Open Energy  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Projects Marine and Hydrokinetic Technology Projects Jump to: navigation, search Dictionary.png Looking for the Marine and Hydrokinetic Technology Database? Click here for a user-friendly list of Marine and Hydrokinetic Technology Projects. This category has the default of form Form:Marine and Hydrokinetic Technology Project. Pages in category "Marine and Hydrokinetic Technology Projects" The following 200 pages are in this category, out of 379 total. (previous 200) (next 200) 4 MHK Projects/40MW Lewis project A MHK Projects/ADM 3 MHK Projects/ADM 4 MHK Projects/ADM 5 MHK Projects/Admirality Inlet Tidal Energy Project MHK Projects/Agucadoura MHK Projects/Alaska 1 MHK Projects/Alaska 13 MHK Projects/Alaska 17 MHK Projects/Alaska 18 MHK Projects/Alaska 24 MHK Projects/Alaska 25

23

Grid Connected Photovoltaic Systems with SmartGrid functionality.  

E-Print Network (OSTI)

?? SummaryThis master?s thesis is focused on the design of grid connected PV power stage inverter. This inverter will be used for solar power application… (more)

Massawe, Henry Benedict

2013-01-01T23:59:59.000Z

24

Grid-Connected Renewable Energy Systems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Grid-Connected Renewable Energy Systems Grid-Connected Renewable Energy Systems Grid-Connected Renewable Energy Systems July 2, 2012 - 8:21pm Addthis When connecting a home energy system to the electric grid, research and consider equipment required as well as your power provider’s requirements and agreements. | Photo courtesy of Solar Design Associates, Inc. When connecting a home energy system to the electric grid, research and consider equipment required as well as your power provider's requirements and agreements. | Photo courtesy of Solar Design Associates, Inc. What are the key facts? While renewable energy systems are capable of powering houses and small businesses without any connection to the electricity grid, many people prefer the advantages that grid-connection offers. Aside from the major small renewable energy system components, you

25

Grid-Connected Renewables Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Grid-Connected Renewables Program Grid-Connected Renewables Program Grid-Connected Renewables Program < Back Eligibility Commercial Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Bioenergy Wind Buying & Making Electricity Maximum Rebate Not specified Program Info Funding Source New Jersey Societal Benefits Charge (public benefits fund) State New Jersey Program Type Performance-Based Incentive Rebate Amount Varies by project; solicitation lists recommended incentive levels 10-20% may be requested as an up-front grant Provider State of New Jersey Board of Public Utilities Note: The deadline for the most recent solicitation has passed and the information in this summary is specific to this closed program solicitation. The New Jersey Office of Clean Energy 2013-2014 Budget

26

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid  

Open Energy Info (EERE)

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid Project) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected Electricity Systems Country France Coordinates 46.134171°, 1.933594° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.134171,"lon":1.933594,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Transatlantic Workshop on Electric Vehicles and Grid Connectivity |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transatlantic Workshop on Electric Vehicles and Grid Connectivity Transatlantic Workshop on Electric Vehicles and Grid Connectivity Transatlantic Workshop on Electric Vehicles and Grid Connectivity November 17, 2010 - 2:33pm Addthis On November 17, 2010, the United States and the European Union, under the auspices of the U.S.-EU Energy Council, invited equipment suppliers and manufacturers, utilities, policymakers, standards organizations, and government agencies to discuss mutually beneficial near-term actions to accelerate the introduction of electric vehicles to the market - with a particular focus on government policy and cooperative efforts to spur vehicle demonstration and deployment. For more information about the workshop, including participant presentations, click here. Addthis Related Articles Obama Administration Launches Competition for Three New Manufacturing

28

High Penetration, Grid Connected Photovoltaic Technology Codes and Standards: Preprint  

DOE Green Energy (OSTI)

This paper reports the interim status in identifying and reviewing photovoltaic (PV) codes and standards (C&S) and related electrical activities for grid-connected, high-penetration PV systems with a focus on U.S. electric utility distribution grid interconnection.

Basso, T. S.

2008-05-01T23:59:59.000Z

29

Case Studies of Grid-Connected Photovoltaic Systems, Vol. 2  

Science Conference Proceedings (OSTI)

The photovoltaic (PV) industry is growing rapidly, and PV power is likely to become an increasingly significant source of distributed generation as its cost declines over the next ten years. This report documents a number of grid-connected photovoltaic case studies covering a broad range of system configurations and project types. The report provides field experience useful to improve the design of future PV systems and identifies problems that need to be addressed to promote the integration of PV power ...

2003-03-25T23:59:59.000Z

30

Case Studies of Grid-Connected Photovoltaic Systems, Volume 3  

Science Conference Proceedings (OSTI)

The photovoltaics industry is growing rapidly, and photovoltaic (PV) power is likely to become an increasingly significant source of distributed generation as its cost declines over the next ten years. This report completes a series of three volumes documenting more than a dozen grid-connected PV case studies in all and covering a broad range of system configurations and project types. The report provides field experience useful to improve the design of future PV systems and identifies problems that need...

2004-03-30T23:59:59.000Z

31

Grid-Connected Renewable Energy Systems Case Studies | Open Energy  

Open Energy Info (EERE)

Grid-Connected Renewable Energy Systems Case Studies Grid-Connected Renewable Energy Systems Case Studies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Grid-Connected Renewable Energy Systems Case Studies Agency/Company /Organization: World Bank Sector: Energy Topics: Market analysis, Co-benefits assessment, Background analysis Resource Type: Lessons learned/best practices, Case studies/examples Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, Country: Uganda, Mexico, Turkey, Germany, Sri Lanka, China Eastern Africa, Central America, Western Asia, Western Europe, Southern Asia, Eastern Asia Coordinates: 1.373333°, 32.290275° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":1.373333,"lon":32.290275,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

32

Grid-Connected Renewable Energy Generation Toolkit-Solar | Open Energy  

Open Energy Info (EERE)

Grid-Connected Renewable Energy Generation Toolkit-Solar Grid-Connected Renewable Energy Generation Toolkit-Solar Jump to: navigation, search Tool Summary Name: Grid-Connected Renewable Energy Generation Toolkit-Solar Agency/Company /Organization: United States Agency for International Development Sector: Energy Focus Area: Solar Resource Type: Training materials Website: www.energytoolbox.org/gcre/mod_5/index.shtml Grid-Connected Renewable Energy Generation Toolkit-Solar Screenshot References: Grid-Connected Renewable Energy Generation Toolkit-Solar[1] Logo: Grid-Connected Renewable Energy Generation Toolkit-Solar GCREsolar.JPG References ↑ "Grid-Connected Renewable Energy Generation Toolkit-Solar" Retrieved from "http://en.openei.org/w/index.php?title=Grid-Connected_Renewable_Energy_Generation_Toolkit-Solar&oldid=375083

33

Grid-Connected Renewable Energy Generation Toolkit-Biomass | Open Energy  

Open Energy Info (EERE)

Grid-Connected Renewable Energy Generation Toolkit-Biomass Grid-Connected Renewable Energy Generation Toolkit-Biomass Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Grid-Connected Renewable Energy Generation Toolkit-Biomass Agency/Company /Organization: United States Agency for International Development Sector: Energy Focus Area: Biomass Resource Type: Training materials Website: www.energytoolbox.org/gcre/mod_2/index.shtml#update Grid-Connected Renewable Energy Generation Toolkit-Biomass Screenshot References: Grid-Connected Renewable Energy-Biomass[1] Logo: Grid-Connected Renewable Energy Generation Toolkit-Biomass Biomass Toolkit References ↑ "Grid-Connected Renewable Energy-Biomass" Retrieved from "http://en.openei.org/w/index.php?title=Grid-Connected_Renewable_Energy_Generation_Toolkit-Biomass&oldid=375080

34

Grid-Connected Renewable Energy Generation Toolkit-Wind | Open Energy  

Open Energy Info (EERE)

Grid-Connected Renewable Energy Generation Toolkit-Wind Grid-Connected Renewable Energy Generation Toolkit-Wind Jump to: navigation, search Tool Summary Name: Grid-Connected Renewable Energy Generation Toolkit-Wind Agency/Company /Organization: United States Agency for International Development Sector: Energy Focus Area: Wind Resource Type: Training materials Website: www.energytoolbox.org/gcre/mod_6/index.shtml Grid-Connected Renewable Energy Generation Toolkit-Wind Screenshot References: Grid-Connected Renewable Energy Generation Toolkit-Wind[1] Logo: Grid-Connected Renewable Energy Generation Toolkit-Wind GCREwind.JPG References ↑ "Grid-Connected Renewable Energy Generation Toolkit-Wind" Retrieved from "http://en.openei.org/w/index.php?title=Grid-Connected_Renewable_Energy_Generation_Toolkit-Wind&oldid=375084"

35

Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here Home Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Geothermal System Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Geothermal...

36

Submersible Generator for Marine Hydrokinetics  

SciTech Connect

A submersible generator was designed as a distinct and critical subassembly of marine hydrokinetics systems, specifically tidal and stream energy conversion. The generator is designed to work with both vertical and horizontal axis turbines. The final product is a high-pole-count, radial-flux, permanent magnet, rim mounted generator, initially rated at twenty kilowatts in a two-meter-per-second flow, and designed to leverage established and simple manufacturing processes. The generator was designed to work with a 3 meter by 7 meter Gorlov Helical Turbine or a marine hydrokinetic version of the FloDesign wind turbine. The team consisted of experienced motor/generator design engineers with cooperation from major US component suppliers (magnetics, coil winding and electrical steel laminations). Support for this effort was provided by Lucid Energy Technologies and FloDesign, Inc. The following tasks were completed: � Identified the conditions and requirements for MHK generators. � Defined a methodology for sizing and rating MHK systems. � Selected an MHK generator topology and form factor. � Completed electromechanical design of submersible generator capable of coupling to multiple turbine styles. � Investigated MHK generator manufacturing requirements. � Reviewed cost implications and financial viability. � Completed final reporting and deliverables

Robert S. Cinq-Mars; Timothy Burke; Dr. James Irish; Brian Gustafson; Dr. James Kirtley; Dr. Aiman Alawa

2011-09-01T23:59:59.000Z

37

Subsystem engineering and development of grid-connected photovoltaic systems  

DOE Green Energy (OSTI)

The experience gained in fielding residential and intermediate sized photovoltaic application experiments is summarized. This experience is used to guide the engineering and development of array and power conditioning subsystems for grid-connected photovoltaic systems. A major consideration in this development effort is cost. Through innovative engineering, using a modular building block approach for the array subsystem, it is now possible to construct array fields, in moderate quantities, for about $52/m/sup 2/ excluding the photovoltaic modules. Similarly, results of power conditioning subsystem development indicate a projected cost of about $0.25/W/sub p/ for advanced units with conversion efficiencies in excess of 90%.

Burgess, E.L.; Post, H.N.; Key, T.S.

1982-01-01T23:59:59.000Z

38

Performance Parameters for Grid-Connected PV Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 B. Marion, J. Adelstein, and K. Boyle National Renewable Energy Laboratory H. Hayden, B. Hammond, T. Fletcher, B. Canada, and D. Narang Arizona Public Service Co. D. Shugar, H. Wenger, A. Kimber, and L. Mitchell PowerLight Corporation G. Rich and T. Townsend First Solar Prepared for the 31 st IEEE Photovoltaics Specialists Conference and Exhibition Lake Buena Vista, Florida January 3-7, 2005 February 2005 * NREL/CP-520-37358 Performance Parameters for Grid-Connected PV Systems

39

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid  

Open Energy Info (EERE)

(Spain) (Spain) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected Electricity Systems Country Spain Coordinates 40.338169°, -3.438721° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.338169,"lon":-3.438721,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

40

Performance model for grid-connected photovoltaic inverters.  

SciTech Connect

This document provides an empirically based performance model for grid-connected photovoltaic inverters used for system performance (energy) modeling and for continuous monitoring of inverter performance during system operation. The versatility and accuracy of the model were validated for a variety of both residential and commercial size inverters. Default parameters for the model can be obtained from manufacturers specification sheets, and the accuracy of the model can be further refined using measurements from either well-instrumented field measurements in operational systems or using detailed measurements from a recognized testing laboratory. An initial database of inverter performance parameters was developed based on measurements conducted at Sandia National Laboratories and at laboratories supporting the solar programs of the California Energy Commission.

Boyson, William Earl; Galbraith, Gary M.; King, David L.; Gonzalez, Sigifredo

2007-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

EERE News: Nevada Deploys First U.S. Commercial, Grid-Connected...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Subscribe RSS Feeds Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Geothermal System April 12, 2013 Photo of pipelines connected to a geothermal heating plant....

42

Case study: Feasibility analysis of renewable energy supply systems in a small grid connected resort.  

E-Print Network (OSTI)

??This paper presents a case study on the feasibility of a small grid connected resort in the marine west coast climate of Canada to implement… (more)

Robins, Jody

2009-01-01T23:59:59.000Z

43

Abrasion Testing of Critical Components of Hydrokinetic Devices  

SciTech Connect

The objective of the Abrasion Testing of Critical Components of Hydrokinetic Devices (Project) was to test critical components of hydrokinetic devices in waters with high levels of suspended sediment – information that is widely applicable to the hydrokinetic industry. Tidal and river sites in Alaska typically have high suspended sediment concentrations. High suspended sediment also occurs in major rivers and estuaries throughout the world and throughout high latitude locations where glacial inputs introduce silt into water bodies. In assessing the vulnerability of technology components to sediment induced abrasion, one of the greatest concerns is the impact that the sediment may have on device components such as bearings and seals, failures of which could lead to both efficiency loss and catastrophic system failures.

Worthington, Monty [ORPC Alaska] [ORPC Alaska; Ali, Muhammad [Ohio University] [Ohio University; Ravens, Tom [University of Alaska Anchorage] [University of Alaska Anchorage

2013-12-06T23:59:59.000Z

44

Assessment and Mapping of the Riverine Hydrokinetic Resource in the  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Assessment and Mapping of the Riverine Hydrokinetic Resource in the Continental United States Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Assessment and Mapping of the Riverine Hydrokinetic Resource in the Continental United States Abstract This report describes the methodology and results of the most rigorous assessment to date of the riverine hydrokinetic energy resource in the contiguous 48 states and Alaska, excluding tidal waters. The assessment provides estimates of the gross, naturally available resource, termed the

45

Storage Size Determination for Grid-Connected Photovoltaic Systems  

E-Print Network (OSTI)

In this paper, we study the problem of determining the size of battery storage used in grid-connected photovoltaic (PV) systems. In our setting, electricity is generated from PV and is used to supply the demand from loads. Excess electricity generated from the PV can be stored in a battery to be used later on, and electricity must be purchased from the electric grid if the PV generation and battery discharging cannot meet the demand. The objective is to minimize the electricity purchase from the electric grid while at the same time choosing an appropriate battery size. More specifically, we want to find a unique critical value (denoted as $E_{max}^c$) of the battery size such that the cost of electricity purchase remains the same if the battery size is larger than or equal to $E_{max}^c$, and the cost is strictly larger if the battery size is smaller than $E_{max}^c$. We propose an upper bound on $E_{max}^c$, and show that the upper bound is achievable for certain scenarios. For the case with ideal PV generat...

Ru, Yu; Martinez, Sonia

2011-01-01T23:59:59.000Z

46

Protection and Control for Grid Connected Photovoltaic Power Generation System Based on Instantaneous Power Theory  

Science Conference Proceedings (OSTI)

Reliable protection and reasonable control run an important role in grid connected PV power generation system. The detection and calculation of real and reactive power are the bases of many inverter resident passive and active islanding detection method ... Keywords: Distributed generation, photovoltaic system, grid connected, protection and control, power theory

Fei Wang; Chengcheng Zhang

2009-05-01T23:59:59.000Z

47

Performance Test Protocol for Evaluating Inverters Used in Grid-Connected  

E-Print Network (OSTI)

Performance Test Protocol for Evaluating Inverters Used in Grid-Connected Photovoltaic Systems....................................................................................................................................... 36 A1 Simplified Photovoltaic I-V Curve Model Inverters Used in Grid-Connected Photovoltaic Systems 1 Overview One measure of the maturity of an industry

48

Battery Sizing for Grid Connected PV Systems with Fixed Minimum Charging/Discharging Time  

E-Print Network (OSTI)

Battery Sizing for Grid Connected PV Systems with Fixed Minimum Charging/Discharging Time Yu Ru, Jan Kleissl, and Sonia Martinez Abstract-- In this paper, we study a battery sizing problem for grid-connected photovoltaic (PV) systems assuming that the battery charging/discharging limit scales linearly with its

Martínez, Sonia

49

Original article: Selective compensation of voltage harmonics in grid-connected microgrids  

Science Conference Proceedings (OSTI)

In this paper, a novel approach is proposed for selective compensation of main voltage harmonics in a grid-connected microgrid. The aim of compensation is to provide a high voltage quality at the point of common coupling (PCC). PCC voltage quality is ... Keywords: Distributed generator (DG), Grid-connected, Microgrid, Voltage harmonics compensation

Mehdi Savaghebi, Juan C. Vasquez, Alireza Jalilian, Josep M. Guerrero, Tzung-Lin Lee

2013-05-01T23:59:59.000Z

50

Simulation for Performance Analysis of Grid-Connected Induction Generators with Input Voltage Control  

Science Conference Proceedings (OSTI)

With the increasing application of wind energy, various technologies are developed for analyzing the performance of grid-connected induction generator (GIG) based wind energy conversion systems (WECSs). Input voltage control is one among them. In the ... Keywords: grid-connected induction generators (GIGs), wind energy conversion systems (WECSs), input voltage control, performance analysis, MATLAB

Farhad Ilahi Bakhsh, Shirazul Islam, Sayeed Ahmad

2013-04-01T23:59:59.000Z

51

Chile-GTZ Public Properties for Grid-connected Renewable Energy Projects |  

Open Energy Info (EERE)

Properties for Grid-connected Renewable Energy Projects Properties for Grid-connected Renewable Energy Projects Jump to: navigation, search Logo: Chile-GTZ Public Properties for Grid-connected Renewable Energy Projects Name Chile-GTZ Public Properties for Grid-connected Renewable Energy Projects Agency/Company /Organization GTZ on behalf of the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) Sector Energy Topics Background analysis Website http://www.gtz.de/en/themen/27 Program Start 2008 Program End 2011 Country Chile UN Region Latin America and the Caribbean References Public Properties for Grid-connected Renewable Energy Projects[1] GTZ is working with Chile with the following objective: "Sites on state-owned properties are identified, assessed and marketed to enable the

52

Global Grid-Connected Hybrid-Electric Vehicle Project: Year-End Summary Report, November 2000  

Science Conference Proceedings (OSTI)

This interim report summarizes research conducted under the auspices of the Global Grid-Connected Hybrid Electric Vehicle Project, an EPRI initiative to promote the use of grid-connected electric technologies in heavy-duty applications. One study in the program evaluated the potential of converting a Ford E-350 or E-450 Super Duty chassis into a grid-connected hybrid electric vehicle airport shuttle bus and a Ford Explorer chassis into a dedicated electric vehicle delivery van. A second study analyzed ad...

2000-12-13T23:59:59.000Z

53

Mongolia-GTZ Energy Efficiency within the Grid-Connected Energy Supply |  

Open Energy Info (EERE)

within the Grid-Connected Energy Supply within the Grid-Connected Energy Supply Jump to: navigation, search Logo: Mongolia-GTZ Energy Efficiency within the Grid-Connected Energy Supply Name Mongolia-GTZ Energy Efficiency within the Grid-Connected Energy Supply Agency/Company /Organization Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH Partner German Federal Ministry for Economic Cooperation and Development (BMZ), Ministry of Fuel and Energy (MoFE) Sector Energy Topics Background analysis, Policies/deployment programs Website http://www.gtz.de/en/praxis/95 Program Start 2007 Program End 2010 Country Mongolia Eastern Asia References GTZ projects [1] GTZ is working with Mongolia on energy efficiency capacity development for institutions and the private sector. References

54

An economic analysis of grid-connected residential solar photovoltaic power systems  

E-Print Network (OSTI)

The question of the utility grid-connected residential market for photovoltaics is examined from a user-ownership perspective. The price is calculated at which the user would be economically indifferent between

Carpenter, Paul R.

55

Economics of grid-connected small wind turbines in the domestic market  

DOE Green Energy (OSTI)

Exploitation of certain niche markets for small wind turbines is one strategy that could help speed the commercialization of grid-connected small turbines. The authors review the world's turbine manufacturers, the utility grid-connected applications and selected niche markets for grid-connected small wind systems (0.1 to 100 kilowatts). Wind turbine installation and purchase are handled under three different payment scenarios: paid in full up front, paid through a second mortgage, or paid as part of a first mortgage. The authors used a simple payback method to compare these scenarios and analyze the costs and energy produced for three different U.S. small wind turbines. When there is a buy-down program for the small wind turbine combined with other financial factors such as net metering, tax exemptions, and tax credits, a strong market incentive is created for the use of grid-connected small wind turbines.

Forsyth, T.; Tu, P.; Gilbert, J.

2000-06-29T23:59:59.000Z

56

Maine Project Launches First Grid-Connected Offshore Wind Turbine in the  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maine Project Launches First Grid-Connected Offshore Wind Turbine Maine Project Launches First Grid-Connected Offshore Wind Turbine in the U.S. Maine Project Launches First Grid-Connected Offshore Wind Turbine in the U.S. May 31, 2013 - 11:00am Addthis News Media Contact (202) 586-4940 WASHINGTON - The Energy Department today recognized the nation's first grid-connected offshore floating wind turbine prototype off the coast of Castine, Maine. Led by the University of Maine, this project represents the first concrete-composite floating platform wind turbine to be deployed in the world - strengthening American leadership in innovative clean energy technologies that diversify the nation's energy mix with more clean, domestic energy sources. "Developing America's vast renewable energy resources is an important part of the Energy Department's all-of-the-above strategy to pave the way

57

NREL: Water Power Research - Marine and Hydrokinetic Technology...  

NLE Websites -- All DOE Office Websites (Extended Search)

Marine and Hydrokinetic Technology Instrumentation, Measurement, and Computer Modeling Workshop The Marine and Hydrokinetic Technology (MHK) Instrumentation, Measurement, and...

58

Plug and Play Distributed Power Systems for Smart-Grid Connected Building |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Emerging Technologies » Plug and Play Distributed Power Systems Emerging Technologies » Plug and Play Distributed Power Systems for Smart-Grid Connected Building Plug and Play Distributed Power Systems for Smart-Grid Connected Building The U.S. Department of Energy (DOE) is currently conducting research into plug-and-play distributed power systems for smart- grid connected buildings. Project Description This project seeks to advance and demonstrate a plug-and-play building energy micro-grid concept for integrating energy storage, loads, and sources at the building level with the external utility grid. The micro-grid demonstration is expected to include the following: Diesel synchronous generator Energy storage device Otis regenerative elevator system representing building critical loads Smart interface with the utility grid

59

A $5 Million Boost for Midsize Wind Turbines and Grid Connectivity |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A $5 Million Boost for Midsize Wind Turbines and Grid Connectivity A $5 Million Boost for Midsize Wind Turbines and Grid Connectivity A $5 Million Boost for Midsize Wind Turbines and Grid Connectivity September 14, 2010 - 10:52am Addthis Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What does this mean for me? With better forecasting, utilities can more reliably connect variable power sources such as wind energy with electricity grids, and can decrease their need for back-up energy sources such as natural gas and hydropower. Last week's Geek-Up talked about the Energy Department's Wind for Schools program and how it is helping schools use wind turbines to power their classrooms. Yesterday, U.S. Energy Secretary Steven Chu announced more than $5 million in funding to help bring wind-generated power to not only more

60

Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Geothermal  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Geothermal System Nevada Deploys First U.S. Commercial, Grid-Connected Enhanced Geothermal System April 12, 2013 - 12:00pm Addthis WASHINGTON -- As part of the Obama Administration's all-of-the-above energy strategy, the Energy Department today recognized the nation's first commercial enhanced geothermal system (EGS) project to supply electricity to the grid. Based in Churchill County, Nevada, Ormat Technologies' Desert Peak 2 EGS project has increased power output of its nearby operating geothermal field by nearly 38 percent - providing an additional 1.7 megawatts of power to the grid and validating this emerging clean energy technology. "Developing America's vast renewable energy resources sustainably is an

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Effects of Tidal Turbine Noise on Fish Task 2.1.3.2: Effects on Aquatic Organisms: Acoustics/Noise - Fiscal Year 2011 - Progress Report - Environmental Effects of Marine and Hydrokinetic Energy  

Science Conference Proceedings (OSTI)

Naturally spawning stocks of Chinook salmon (Oncorhynchus tshawytscha) that utilize Puget Sound are listed as threatened (http://www.nwr.noaa.gov/ESA-Salmon-Listings/Salmon-Populations/ Chinook/CKPUG.cfm). Plans exist for prototype tidal turbines to be deployed into their habitat. Noise is known to affect fish in many ways, such as causing a threshold shift in auditory sensitivity or tissue damage. The characteristics of noise, its spectra and level, are important factors that influence the potential for the noise to injure fish. For example, the frequency range of the tidal turbine noise includes the audiogram (frequency range of hearing) of most fish. This study (Effects on Aquatic Organisms, Subtask 2.1.3.2: Acoustics) was performed during FY 2011 to determine if noise generated by a 6-m-diameter open-hydro turbine might affect juvenile Chinook salmon hearing or cause barotrauma. After they were exposed to simulated tidal turbine noise, the hearing of juvenile Chinook salmon was measured and necropsies performed to check for tissue damage. Experimental groups were (1) noise exposed, (2) control (the same handling as treatment fish but without exposure to tidal turbine noise), and (3) baseline (never handled). Preliminary results indicate that low levels of tissue damage may have occurred but that there were no effects of noise exposure on the auditory systems of the test fish.

Halvorsen, Michele B.; Carlson, Thomas J.; Copping, Andrea E.

2011-09-30T23:59:59.000Z

62

Original Articles: Universal wind turbine working in grid-connected and island operating modes  

Science Conference Proceedings (OSTI)

In the future power system based on active distribution grid, allowing some portion to be disconnected, the concept of universal wind turbine systems may arise. This concept covers both grid-connected and island operations. This may happen if the voltage ... Keywords: Distributed generation, Droop control, Resynchronization, Wind power

Mario Rizo, Marco Liserre, Emilio Bueno, Francisco J. RodríGuez, Francisco Huerta

2013-05-01T23:59:59.000Z

63

Grid-Connected Marine Current Generation System Power Smoothing Control Using Supercapacitors  

E-Print Network (OSTI)

Grid-Connected Marine Current Generation System Power Smoothing Control Using Supercapacitors to reduce the fluctuation of generator power. In the second step, Supercapacitor (SC) Energy Storage System fluctuation, swell effect, power smoothing control, supercapacitor. I. [NTRODUCTION [n the recent years

Paris-Sud XI, Université de

64

Enhanced modeling and control of VSIs in microgrids operating in grid-connected mode  

Science Conference Proceedings (OSTI)

This paper focus on the influence of filter dynamics on the performance and stability of current control loops of three-phase, pulse-width modulation (PWM) voltage source inverters (VSIs) in grid-connected operating mode. The analysis considers the application ...

Leonardo Rese; Antonio Simoes Costa; Aguinaldo S. e Silva

2012-01-01T23:59:59.000Z

65

Analysis of Ultracapacitors for Use in a Grid-Connected Hybrid Electric Vehicle  

Science Conference Proceedings (OSTI)

This study assessed the benefits of combining the unique energy-storage capabilities of ultracapacitors with a grid-connected hybrid electric vehicle (HEV). Ultracapacitors reduce the peak power requirements of the power pack and could thus allow the use of alternate battery technologies with better cost and life cycle characteristics.

2002-10-30T23:59:59.000Z

66

Remote performance check and automated failure identification for grid-connected PV systems  

E-Print Network (OSTI)

energy yield against an expected, simulated value. A PV simulation model, which employs inexpensiveRemote performance check and automated failure identification for grid-connected PV systems reliable operation of small systems up to 5 kWp. The detection and identification of a failure is strongly

Heinemann, Detlev

67

Marine and Hydrokinetic | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Marine and Hydrokinetic Marine and Hydrokinetic Marine and Hydrokinetic The Water Power Program's marine and hydrokinetic research and development (R&D) efforts focus on advancing technologies that capture energy from the nation's oceans and rivers. Unlike hydropower, marine and hydrokinetics represent an emerging industry with hundreds of potentially viable technologies. The program is therefore leading efforts to prove functionality; evaluate technical and economic viability; and generate cost, performance, and reliability data for a variety of devices. Marine and hydrokinetic energy technologies convert the energy of waves, tides, and river and ocean currents into electricity. The Department of Energy's "Marine and Hydrokinetic 101" video explains how these technologies work and highlights some of the Water Power Program's efforts

68

Design of a single-phase grid-connected photovoltaic systems based on Fuzzy-PID controller  

Science Conference Proceedings (OSTI)

The output power of photovoltaic (PV) module varies with module temperature, solar isolation and 1oads changes etc. In order to control the output power of single-phase grid-connected PV system according to the output power PV arrays. In this paper a ... Keywords: DC/AC inverter, fuzzy-PID control, grid-connected, photovoltaic system

Fengwen Cao; Yiwang Wang

2009-09-01T23:59:59.000Z

69

Marine and Hydrokinetic Technology Database  

DOE Data Explorer (OSTI)

Results are displayed as a list of technologies, companies, or projects. Data can be filtered by a number of criteria, including country/region, technology type, generation capacity, and technology or project stage. The database is currently (2009) being updated to include ocean thermal energy technologies, companies, and projects.[Taken from http://www2.eere.energy.gov/windandhydro/hydrokinetic/

70

Assessing the Reliability and Economics of Wide-Scale Grid-Connected  

NLE Websites -- All DOE Office Websites (Extended Search)

Assessing the Reliability and Economics of Wide-Scale Grid-Connected Assessing the Reliability and Economics of Wide-Scale Grid-Connected Distributed Energy Generation with Application to Electric Power Systems Under Stress Speaker(s): Hisham Zerriffi Date: November 13, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare Electric power systems can be disrupted due to a variety of stress circumstances. These can range from constraints on the physical infrastructure as a result of under-capacity problems to deliberate attacks in times of conflict. Stress conditions can manifest themselves in a variety of ways and determining both the nature of the stress and the best mathematical representation of that stress in the model is complicated. This talk details a quantitative comparison of the reliability of an

71

MHK Projects/Evopod E1 1 10 scale grid connected demonstrator | Open Energy  

Open Energy Info (EERE)

Evopod E1 1 10 scale grid connected demonstrator Evopod E1 1 10 scale grid connected demonstrator < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":54.388,"lon":-5.566,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

72

Four Federal Grid-Connected Photovoltaic Systems: Powering Our Nation's Capital with Solar  

DOE Green Energy (OSTI)

One of the fastest growing markets for photovoltaics (PV) is the urban sector. Municipal planners have discovered that PV systems operate favorably in their urban areas, and can be aesthetically integrated into the urban landscape. The federal government has a long history of using PV in a variety of applications, but until recently few applications have been in urban environments. During the last five years, four grid-connected PV systems have been installed on federally owned or federally leased facilities in the Washington, D.C. area: (1) Earth Day Park, (2) U.S. Department of Energy Headquarters, (3) the Pentagon, and (4) Federal Energy Regulatory Commission Headquarters. This paper reviews these four urban, grid-connected systems-particularly the issues of siting, permitting, and grid interconnection.

Plympton, P.; Kappaz, P.; Kroposki, B.; Stafford, B.; Thornton, J.

2001-04-16T23:59:59.000Z

73

MHK Projects/Evopod E35 35kW grid connected demonstrator | Open Energy  

Open Energy Info (EERE)

E35 35kW grid connected demonstrator E35 35kW grid connected demonstrator < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.3028,"lon":-5.59772,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

74

EPRI-DOE Handbook Supplement of Energy Storage for Grid Connected Wind Generation Applications  

Science Conference Proceedings (OSTI)

To date, the use of energy storage systems to optimize wind power generation has been limited to small, off-grid rural or village power applications plus a few technology demonstration-scale battery storage projects for grid connected applications. However, recent developments in advanced energy storage technologies and other technical, economic, and social factors suggest a promising future for such energy storage applications. This Handbook Supplement provides an objective information resource on the l...

2004-12-15T23:59:59.000Z

75

Grid-connected and control of MPPT for wind power generation systems based on the SCIG  

Science Conference Proceedings (OSTI)

This paper adopts a main circuit structure with back-to-back PWM converter, in which generator-side using direct torque control method, and grid-side adopts three-phase VSR inner current decoupling control based feed forward control algorithms, and this ... Keywords: back-to-back, grid-connected, maximum power point tracking (MPPT), squirrel cage induction generator (SCIG), wind-turbine generation system

Yidong Chen; Yulin Yang; Liqiao Wang; Zhiyun Jia; Weiyang Wu

2010-03-01T23:59:59.000Z

76

Tidal Sails AS | Open Energy Information  

Open Energy Info (EERE)

Sails AS Sails AS Jump to: navigation, search Name Tidal Sails AS Address Standgaten 130 Place Haugesund Zip 5531 Sector Marine and Hydrokinetic Phone number +32 474 98 06 16 Website http://www.tidalsails.com Region Norway LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Technologies: Tidal Sails This article is a stub. You can help OpenEI by expanding it. Retrieved from "http://en.openei.org/w/index.php?title=Tidal_Sails_AS&oldid=678479" Categories: Clean Energy Organizations Companies Organizations Stubs MHK Companies What links here Related changes Special pages Printable version Permanent link Browse properties

77

Hydra Tidal Energy Technology AS | Open Energy Information  

Open Energy Info (EERE)

Tidal Energy Technology AS Tidal Energy Technology AS Jump to: navigation, search Name Hydra Tidal Energy Technology AS Address PO Box 399 Place Harstad Zip 9484 Sector Marine and Hydrokinetic Year founded 2001 Phone number (+47) 77 06 08 08 Website http://http://www.hydratidal.i Region Norway LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: MORILD Demonstration Plant Morild 2 This company is involved in the following MHK Technologies: MORILD 2 Floating Tidal Power System Morild Power Plant This article is a stub. You can help OpenEI by expanding it. Retrieved from "http://en.openei.org/w/index.php?title=Hydra_Tidal_Energy_Technology_AS&oldid=678333

78

Assessment and Mapping of the Riverine Hydrokinetic Resource in the Continental United States  

Science Conference Proceedings (OSTI)

This report describes the methodology and results of the most rigorous assessment to date of the riverine hydrokinetic energy resource in the contiguous 48 states and Alaska, excluding tidal waters. The assessment provides estimates of the gross, naturally available resource, termed the theoretical resource, as well as estimates, termed the technically recoverable resource, that account for selected technological factors affecting capture and conversion of the theoretical resource. The ...

2012-12-12T23:59:59.000Z

79

Evolutionary programming versus artificial immune system in evolving neural network for grid-connected photovoltaic system output prediction  

Science Conference Proceedings (OSTI)

This paper presents the evolutionary neural networks for the prediction of energy output from a grid-connected photovoltaic (GCPV) system. Two evolutionary neural network (ENN) models have been proposed using evolutionary programming and artificial immune ... Keywords: artificial immune system (AIS) and prediction, artificial neural network (ANN), correlation coefficient (R), evolutionary programming (EP), grid-connected photovoltaic system (GCPV), multi-layer feedforward neural network (MLFNN), photovoltaic (PV)

Shahril Irwan Sulaiman; Titik Khawa Abdul Rahman; Ismail Musirin; Sulaiman Shaari

2011-06-01T23:59:59.000Z

80

PVUSA experience with power conversion for grid-connected photovoltaic systems  

DOE Green Energy (OSTI)

The Photovoltaics for Utility Scale Application (PVUSA) project was established to demonstrate photovoltaic (PV) systems in grid-connected utility applications. One of PVUSA`s key objectives is to evaluate the performance, reliability, and cost of the PV balance of system (BOS). Power conditioning units (PCUs) are the interface between the dc PV arrays and the ac utility lines, and have proved to be the most critical element in grid-connected PV systems. There are five different models of PCUs at PVUSA`s Davis and Kerman sites. This report describes the design, testing, performance characteristics, and maintenance history of each of these PCUs. PVUSA required PCUs in the power range 25 kW to 500 kW which could operate automatically and reliably under changing conditions of sunlight and changing conditions on the utility grid. Although a number of manufacturers can provide PCUs in this power range, none of these PCUs have been produced in sufficient quantity to allow refinement of a particular model into the highly reliable unit needed for long-term, unattended operation. Factory tests were useful but limited by the inability to test under full power and changing power conditions. The inability to completely test PCUs at the factory resulted in difficulty during startup, field testing, and subsequent operation. PVUSA has made significant progress in understanding the requirements for PCUs in grid-connected PV applications and improving field performance. This record of PVUSA`s experience with a variety of PCUs is intended to help utilities and their suppliers identify and retain the good performance characteristics of PCUs, and to make improvements where necessary to meet the needs of utilities.

Stolte, W.

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Agelidis, “Inverter for Single-Phase Grid Connected Photovoltaic Systems – An Overview,” Power Electron  

E-Print Network (OSTI)

Abstract- An overview on recent developments and a summary of the state-of-the-art of inverter technology in Europe for single-phase grid-connected Photovoltaic (PV) systems for power levels up to 5 kW is provided in this paper. The information includes details not only on the topologies commercially available but also on the switching devices employed and the associated switching frequencies, efficiency, price trends and market share. Finally, the paper outlines issues associated with the development of relevant international industry standards affecting PV inverter technology. I.

Martina Calais; Johanna Myrzik; Ted Spoone; Vassilios G. Agelidis

2002-01-01T23:59:59.000Z

82

Smart Energy Management and Control for Fuel Cell Based Micro-Grid Connected Neighborhoods  

DOE Green Energy (OSTI)

Fuel cell power generation promises to be an efficient, pollution-free, reliable power source in both large scale and small scale, remote applications. DOE formed the Solid State Energy Conversion Alliance with the intention of breaking one of the last barriers remaining for cost effective fuel cell power generation. The Alliance’s goal is to produce a core solid-state fuel cell module at a cost of no more than $400 per kilowatt and ready for commercial application by 2010. With their inherently high, 60-70% conversion efficiencies, significantly reduced carbon dioxide emissions, and negligible emissions of other pollutants, fuel cells will be the obvious choice for a broad variety of commercial and residential applications when their cost effectiveness is improved. In a research program funded by the Department of Energy, the research team has been investigating smart fuel cell-operated residential micro-grid communities. This research has focused on using smart control systems in conjunction with fuel cell power plants, with the goal to reduce energy consumption, reduce demand peaks and still meet the energy requirements of any household in a micro-grid community environment. In Phases I and II, a SEMaC was developed and extended to a micro-grid community. In addition, an optimal configuration was determined for a single fuel cell power plant supplying power to a ten-home micro-grid community. In Phase III, the plan is to expand this work to fuel cell based micro-grid connected neighborhoods (mini-grid). The economic implications of hydrogen cogeneration will be investigated. These efforts are consistent with DOE’s mission to decentralize domestic electric power generation and to accelerate the onset of the hydrogen economy. A major challenge facing the routine implementation and use of a fuel cell based mini-grid is the varying electrical demand of the individual micro-grids, and, therefore, analyzing these issues is vital. Efforts are needed to determine the most appropriate means of implementing micro-grids and the costs and processes involved with their extended operation. With the development and availability of fuel cell based stand-alone power plants, an electrical mini-grid, encompassing several connected residential neighborhoods, has become a viable concept. A primary objective of this project is to define the parameters of an economically efficient fuel cell based mini-grid. Since pure hydrogen is not economically available in sufficient quantities at the present time, the use of reforming technology to produce and store excess hydrogen will also be investigated. From a broader perspective, the factors that bear upon the feasibility of fuel cell based micro-grid connected neighborhoods are similar to those pertaining to the electrification of a small town with a localized power generating station containing several conventional generating units. In the conventional case, the town or locality would also be connected to the larger grid system of the utility company. Therefore, in the case of the fuel cell based micro-grid connected neighborhoods, this option should also be available. The objectives of this research project are: To demonstrate that smart energy management of a fuel cell based micro-grid connected neighborhood can be efficient and cost-effective;To define the most economical micro-grid configuration; and, To determine how residential micro-grid connected fuel cell(s) can contribute to America's hydrogen energy future.

Dr. Mohammad S. Alam

2006-03-15T23:59:59.000Z

83

Marine & Hydrokinetic Technologies (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes the U.S. Department of Energy's Water Power Program. The program supports the development of advanced water power devices that capture energy from waves, tides, ocean currents, rivers, streams, and ocean thermal gradients. The program works to promote the development and deployment of these new technologies, known as marine and hydrokinetic technologies, to assess the potential extractable energy from rivers, estuaries, and coastal waters, and to help industry harness this renewable, emissions-free resource to generate environmentally sustainable and cost-effective electricity.

Not Available

2010-04-01T23:59:59.000Z

84

PVWATTS Version 2 - Enhanced Spatial Resolution for Calculating Grid-Connected PV Performance: Preprint  

NLE Websites -- All DOE Office Websites (Extended Search)

PVWATTS Version 2 - PVWATTS Version 2 - Enhanced Spatial Resolution for Calculating Grid-Connected PV Performance Preprint October 2001 * NREL/CP-560-30941 B. Marion, M. Anderberg, R. George, P. Gray-Hann, and D. Heimiller To be presented at the NCPV Program Review Meeting Lakewood, Colorado 14-17 October 2001 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a U.S. Department of Energy Laboratory Operated by Midwest Research Institute * * * * Battelle * * * * Bechtel Contract No. DE-AC36-99-GO10337 NOTICE The submitted manuscript has been offered by an employee of the Midwest Research Institute (MRI), a contractor of the US Government under Contract No. DE-AC36-99GO10337. Accordingly, the US Government and MRI retain a nonexclusive royalty-free license to publish or reproduce the published

85

Simulating Collisions for Hydrokinetic Turbines  

SciTech Connect

Evaluations of blade-strike on an axial-flow Marine Hydrokinetic turbine were conducted using a conventional methodology as well as an alternative modeling approach proposed in the present document. The proposed methodology integrates the following components into a Computa- tional Fluid Dynamics (CFD) model: (i) advanced eddy-resolving flow simulations, (ii) ambient turbulence based on field data, (iii) moving turbine blades in highly transient flows, and (iv) Lagrangian particles to mimic the potential fish pathways. The sensitivity of blade-strike prob- ability to the following conditions was also evaluated: (i) to the turbulent environment, (ii) to fish size and (iii) to mean stream flow velocity. The proposed methodology provided fraction of collisions and offered the capability of analyzing the causal relationships between the flow envi- ronment and resulting strikes on rotating blades. Overall, the conventional methodology largely overestimates the probability of strike, and lacks the ability to produce potential fish and aquatic biota trajectories as they interact with the rotating turbine. By using a set of experimental corre- lations of exposure-response of living fish colliding on moving blades, the occurrence, frequency and intensity of the particle collisions was next used to calculate the survival rate of fish crossing the MHK turbine. This step indicated survival rates always greater than 98%. Although the proposed CFD framework is computationally more expensive, it provides the advantage of evaluating multiple mechanisms of stress and injury of hydrokinetic turbine devices on fish.

Richmond, Marshall C.; Romero Gomez, Pedro DJ; Rakowski, Cynthia L.

2013-10-01T23:59:59.000Z

86

Grid connected integrated community energy system. Phase II: final stage 2 report. Preliminary design of cogeneration plant  

SciTech Connect

The preliminary design of a dual-purpose power plant to be located on the University of Minnesota is described. This coal-fired plant will produce steam and electric power for a grid-connected Integrated Community Energy System. (LCL)

1978-03-22T23:59:59.000Z

87

Understanding the Benefits of Dispersed Grid-Connected Photovoltaics: From Avoiding the Next Major Outage to Taming Wholesale Power Markets  

SciTech Connect

Thanks to new solar resource assessment techniques using cloud cover data available from geostationary satellites, it is apparent that grid-connected PV installations can serve to enhance electric grid reliability, preventing or hastening recovery from major power outages and serving to mitigate extreme price spikes in wholesale energy markets. (author)

Letendre, Steven E.; Perez, Richard

2006-07-15T23:59:59.000Z

88

Grid connection of wave power farm using an N-level cascaded H-bridge multilevel inverter  

Science Conference Proceedings (OSTI)

An N-level cascaded H-bridge multilevel inverter is proposed for grid connection of large wave power farms. The point-absorber wave energy converters are individually rectified and used as isolated DC-sources. The variable power characteristics of the ...

Rickard Ekström, Mats Leijon

2013-01-01T23:59:59.000Z

89

FORECAST OF ENSEMBLE POWER PRODUCTION BY GRID-CONNECTED PV SYSTEMS Elke Lorenz*, Detlev Heinemann*, Hashini Wickramarathne*, Hans Georg Beyer +  

E-Print Network (OSTI)

FORECAST OF ENSEMBLE POWER PRODUCTION BY GRID-CONNECTED PV SYSTEMS Elke Lorenz*, Detlev Heinemann will highly benefit from forecast information on the expected power production. This forecast information and evaluate an approach to forecast regional PV power production. The forecast quality was investigated

Heinemann, Detlev

90

Grid connected integrated community energy system. Phase II: final stage 2 report. Outline specifications of cogeneration plant; continued  

SciTech Connect

Specifications are presented for the electrical equipment, site preparation, building construction and mechanical systems for a dual-purpose power plant to be located on the University of Minnesota campus. This power plant will supply steam and electrical power to a grid-connected Integrated Community Energy System. (LCL)

1978-03-22T23:59:59.000Z

91

Assessing the Effects of Marine and Hydrokinetic Energy Development on Marine and Estuarine Resources  

SciTech Connect

The world’s oceans and estuaries offer an enormous potential to meet the nation’s growing demand for energy. The use of marine and hydrokinetic (MHK) devices to harness the power of wave and tidal energy could contribute significantly toward meeting federal- and state-mandated renewable energy goals while supplying a substantial amount of clean energy to coastal communities. Locations along the eastern and western coasts of the United States between 40° and 70° north latitude are ideal for MHK deployment, and recent estimates of energy potential for the coasts of Washington, Oregon, and California suggest that up to 25 gigawatts could be generated from wave and tidal devices in these areas. Because energy derived from wave and tidal devices is highly predictable, their inclusion in our energy portfolio could help balance available sources of energy production, including hydroelectric, coal, nuclear, wind, solar, geothermal, and others.

Ward, Jeffrey A.; Schultz, Irvin R.; Woodruff, Dana L.; Roesijadi, Guritno; Copping, Andrea E.

2010-07-30T23:59:59.000Z

92

Electricity storage for grid-connected household dwellings with PV panels  

SciTech Connect

Classically electricity storage for PV panels is mostly designed for stand-alone applications. In contrast, we focus in this article on houses connected to the grid with a small-scale storage to store a part of the solar power for postponed consumption within the day or the next days. In this way the house owner becomes less dependent on the grid and does only pay for the net shortage of his energy production. Local storage solutions pave the way for many new applications like omitting over-voltage of the line and bridging periods of power-line black-out. Since 2009 using self-consumption of PV energy is publicly encouraged in Germany, which can be realised by electric storage. This paper develops methods to determine the optimal storage size for grid-connected dwellings with PV panels. From measurements in houses we were able to establish calculation rules for sizing the storage. Two situations for electricity storage are covered: - the storage system is an optimum to cover most of the electricity needs; - it is an optimum for covering the peak power need of a dwelling. After these calculation rules a second step is needed to determine the size of the real battery. The article treats the aspects that should be taken into consideration before buying a specific battery like lead-acid and lithium-ion batteries. (author)

Mulder, Grietus; Six, Daan [Vlaamse Instelling voor Technologisch Onderzoek, Unit Energy Technology, Mol (Belgium); Ridder, Fjo De [Vrije Universiteit Brussel (Belgium)

2010-07-15T23:59:59.000Z

93

Multiobjective Particle Swarm Optimization for the optimal design of photovoltaic grid-connected systems  

Science Conference Proceedings (OSTI)

Particle Swarm Optimization (PSO) is a highly efficient evolutionary optimization algorithm. In this paper a multiobjective optimization algorithm based on PSO applied to the optimal design of photovoltaic grid-connected systems (PVGCSs) is presented. The proposed methodology intends to suggest the optimal number of system devices and the optimal PV module installation details, such that the economic and environmental benefits achieved during the system's operational lifetime period are both maximized. The objective function describing the economic benefit of the proposed optimization process is the lifetime system's total net profit which is calculated according to the method of the Net Present Value (NPV). The second objective function, which corresponds to the environmental benefit, equals to the pollutant gas emissions avoided due to the use of the PVGCS. The optimization's decision variables are the optimal number of the PV modules, the PV modules optimal tilt angle, the optimal placement of the PV modules within the available installation area and the optimal distribution of the PV modules among the DC/AC converters. (author)

Kornelakis, Aris [Technical University of Crete, Department of Electronic and Computer Engineering, Chania (Greece)

2010-12-15T23:59:59.000Z

94

Mitigation of Voltage and Current Harmonics in Grid-Connected Microgrids Savaghebi, Mehdi; Guerro, Josep M.; Jalilian, Alireza ; Quintero, Juan Carlos Vasquez  

E-Print Network (OSTI)

Mitigation of Voltage and Current Harmonics in Grid-Connected Microgrids Savaghebi, Mehdi; Guerro-Connected Microgrids. In Proceedings of the 21st IEEE International Symposium on Industrial Electronics (ISIE), 2012;Mitigation of Voltage and Current Harmonics in Grid-Connected Microgrids Mehdi Savaghebi1 , Josep M. Guerrero

Vasquez, Juan Carlos

95

Inflow Characterization for Marine and Hydrokinetic Energy Devices. FY-2011: Annual Progress Report  

SciTech Connect

The Pacific Northwest National Laboratory (PNNL), in collaboration with the Applied Physics Laboratory at the University of Washington (APL-UW), has carried out a detailed preliminary fluid flow field study at site selected for testing of marine and hydrokinetic turbines using Acoustic Doppler Velocimetry (ADV) measurements, Acoustic Doppler Current Profiler (ADCP) measurements, and Conductivity, Temperature and Depth (CTD) measurements. In FY-2011 these measurements were performed continuously for two weeks, in order to collect data during neap and spring tides, as well as during diurnal tidal variations.

Richmond, Marshall C.; Durgesh, Vibhav; Thomson, Jim; Polagye, Brian

2011-06-09T23:59:59.000Z

96

Environmental Effects of Hydrokinetic Turbines on Fish: Desktop and Laboratory Flume Studies  

SciTech Connect

This collection of three reports describes desktop and laboratory flume studies that provide information to support assessment of the potential for injury and mortality of fish that encounter hydrokinetic turbines of various designs installed in tidal and river environments. Behavioral responses to turbine exposure also are investigated to support assessment of the potential for disruptions to upstream and downstream movements of fish. The studies: (1) conducted an assessment of potential injury mechanisms using available data from studies with conventional hydro turbines; (2) developed theoretical models for predicting blade strike probabilities and mortality rates; and (3) performed flume testing with three turbine designs and several fish species and size groups in two laboratory flumes to estimate survival rates and document fish behavior. The project yielded three reports which this document comprises. The three constituent documents are addressed individually below Fish Passage Through Turbines: Application of Conventional Hydropower Data to Hydrokinetic Technologies Fish passing through the blade sweep of a hydrokinetic turbine experience a much less harsh physical environment than do fish entrained through conventional hydro turbines. The design and operation of conventional turbines results in high flow velocities, abrupt changes in flow direction, relatively high runner rotational and blade speeds, rapid and significant changes in pressure, and the need for various structures throughout the turbine passageway that can be impacted by fish. These conditions generally do not occur or are not significant factors for hydrokinetic turbines. Furthermore, compared to conventional hydro turbines, hydrokinetic turbines typically produce relatively minor changes in shear, turbulence, and pressure levels from ambient conditions in the surrounding environment. Injuries and mortality from mechanical injuries will be less as well, mainly due to low rotational speeds and strike velocities, and an absence of structures that can lead to grinding or abrasion injuries. Additional information is needed to rigorously assess the nature and magnitude of effects on individuals and populations, and to refine criteria for design of more fish-friendly hydrokinetic turbines. Evaluation of Fish Injury and Mortality Associated with Hydrokinetic Turbines Flume studies exposed fish to two hydrokinetic turbine designs to determine injury and survival rates and to assess behavioral responses. Also, a theoretical model developed for predicting strike probability and mortality of fish passing through conventional hydro turbines was adapted for use with hydrokinetic turbines and applied to the two designs evaluated during flume studies. The flume tests were conducted with the Lucid spherical turbine (LST), a Darrieus-type (cross flow) turbine, and the Welka UPG, an axial flow propeller turbine. Survival rates for rainbow trout tested with the LST were greater than 98% for both size groups and approach velocities evaluated. Turbine passage survival rates for rainbow trout and largemouth bass tested with the Welka UPG were greater than 99% for both size groups and velocities evaluated. Injury rates of turbine-exposed fish were low with both turbines and generally comparable to control fish. Video observations of the LST demonstrated active avoidance of turbine passage by a large proportion fish despite being released about 25 cm upstream of the turbine blade sweep. Video observations from behavior trials indicated few if any fish pass through the turbines when released farther upstream. The theoretical predictions for the LST indicated that strike mortality would begin to occur at an ambient current velocity of about 1.7 m/s for fish with lengths greater than the thickness of the leading edge of the blades. As current velocities increase above 1.7 m/s, survival was predicted to decrease for fish passing through the LST, but generally remained high (greater than 90%) for fish less than 200 mm in length. Strike mortality was not predicted to occur duri

Jacobson, Paul T. [Electric Power Research Institute; Amaral, Stephen V. [Alden Research Laboratory; Castro-Santos, Theodore [U.S. Geological Survey; Giza, Dan [Alden Research Laboratory; Haro, Alexander J. [U.S. Geological Survey; Hecker, George [Alden Research Laboratory; McMahon, Brian [Alden Research Laboratory; Perkins, Norman [Alden Research Laboratory; Pioppi, Nick [Alden Research Laboratory

2012-12-31T23:59:59.000Z

97

Compatibility Study of Protective Relaying in a Grid-Connected Fuel Cell  

DOE Green Energy (OSTI)

A 200-kW fuel cell produced by International Fuel Cells (IFC), a United Technologies Company, began operation at the National Transportation Research Center (NTRC) in early June 2003. The NTRC is a joint Oak Ridge National laboratory (ORNL) and University of Tennessee research facility located in Knoxville, Tennessee. This research activity investigated the protective relaying functions of this fully commercialized fuel cell power plant, which uses ''synthesized'' protective relays. The project's goal is to characterize the compatibility between the fuel cell's interconnection protection system and the local distribution system or electric power system (EPS). ORNL, with assistance from the Electric Power Research Institute-Power Electronics Applications Center (EPRI-PEAC) in Knoxville, Tennessee, monitored and characterized the system compatibility over a period of 6 months. Distribution utility engineers are distrustful of or simply uncomfortable with the protective relaying and hardware provided as part of distributed generation (DG) plants. Part of this mistrust is due to the fact that utilities generally rely on hardware from certain manufacturers whose reliability is well established based on performance over many years or even decades. Another source of concern is the fact that fuel cells and other types of DG do not use conventional relays but, instead, the protective functions of conventional relays are simulated by digital circuits in the distributed generator's grid interface control unit. Furthermore, the testing and validation of internal protection circuits of DG are difficult to accomplish and can be changed by the vendor at any time. This study investigated and documented the safety and protective relaying present in the IFC fuel cell, collected data on the operation of the fuel cell, recorded event data during EPS disturbances, and assessed the compatibility of the synthesized protective circuits and the local distribution system. The project also addressed other important and timely issues. For instance, the study includes an evaluation of the effectiveness of the fuel cell's synthesized relay protection scheme relative to the recently issued IEEE 1547 interconnection standard. Together, these activities should serve to reduce the number of unknowns pertaining to unconventional protective circuits, to the benefit of DG manufacturers, vendors, prospective and current users of DG, and electricity suppliers/distributors. Although more grid-connect fuel cell interruptions were encountered in this study than originally anticipated, and the investigation and findings became quite complex, every effort was made to clearly summarize the interconnection causes and issues throughout the report and especially in the summary found in Sect. 4. ORNL's funding of this study is sponsored equally by (1) the Department of Energy's (DOE's) Office of Distributed Energy Resources and (2) the Distributed Generation Technologies program of the Tennessee Valley Authority (TVA).

Staunton, R.H.

2004-04-15T23:59:59.000Z

98

Tidal Energy  

Office of Scientific and Technical Information (OSTI)

into Wave and Tidal Ocean Power: 15% Water Power by 2030, Energy.gov News Assessment of Energy Production Potential from Tidal Streams in the United States, Energy Citations...

99

Energy 101: Marine and Hydrokinetic Energy | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Marine and Hydrokinetic Energy Marine and Hydrokinetic Energy Energy 101: Marine and Hydrokinetic Energy Addthis Below is the text version for the Energy 101: Marine & Hydrokinetic Energy video. The words "Energy 101: Marine & Hydrokinetic Energy" appear onscreen. Montage of renewable energy technologies ending with shots of ocean waves. We all know energy can come from the wind and the sun, but there's a plentiful renewable resource covering more than 75% of the planet that you might not have thought about: our water! The movement of the ocean's waves, tides, and currents carries energy that can be harnessed and converted into electricity to power our homes, buildings and cities. The words "Kinetic Energy" appear onscreen with shots of ocean scientists at sea. The words "Marine & Hydrokinetic" appear onscreen.

100

Form:Marine and Hydrokinetic Technology | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Marine and Hydrokinetic Technology Jump to: navigation, search Add a Marine and Hydrokinetic Technology Input the name of your Marine and Hydrokinetic Technology below to add it to the registry. If your technology is already in the registry, the form will be populated with that technology's fields and you may edit. MHK_Technologies/ Submit The text entered into this field will be used as the name of the project being defined. All projects are automatically prefixed with MHK_Technologies/. The field is case sensitive so be sure to capitalize in the correct areas and type the full title properly. << Return to the Marine and Hydrokinetic Database Retrieved from "http://en.openei.org/w/index.php?title=Form:Marine_and_Hydrokinetic_Technology&oldid=680669"

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Category:Marine and Hydrokinetic Technologies | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Technologies Marine and Hydrokinetic Technologies Jump to: navigation, search Dictionary.png Looking for the Marine and Hydrokinetic Technology Database? Click here for a user-friendly list of Marine and Hydrokinetic Technologies. This category has the default of form Form:Marine and Hydrokinetic Technology. Pages in category "Marine and Hydrokinetic Technologies" The following 200 pages are in this category, out of 282 total. (previous 200) (next 200) 1 MHK Technologies/14 MW OTECPOWER A MHK Technologies/Aegir Dynamo MHK Technologies/AirWEC MHK Technologies/Anaconda bulge tube drives turbine MHK Technologies/AquaBuoy MHK Technologies/Aquanator MHK Technologies/Aquantis MHK Technologies/Archimedes Wave Swing MHK Technologies/Atlantis AN 150 MHK Technologies/Atlantis AR 1000

102

Energy 101: Marine & Hydrokinetic Energy | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Marine & Hydrokinetic Energy Marine & Hydrokinetic Energy Energy 101: Marine & Hydrokinetic Energy August 13, 2013 - 10:54am Addthis See how marine and hydrokinetic technologies harness the energy of the ocean's waves, tides, and currents and convert it into electricity to power our homes, buildings, and cities. The oceans represent a largely untapped renewable energy resource with potential to provide clean electricity to coastal communities and cities across the United States. In this edition of Energy 101, learn how the Energy Department is supporting research on a range of innovative marine and hydrokinetic energy technologies to capture energy from waves and currents. For more information on marine and hydrokinetic energy from the Office of Energy Efficiency and Renewable Energy, visit the Water Power Program

103

MHK Technologies/In stream River Hydrokinetics | Open Energy Information  

Open Energy Info (EERE)

In stream River Hydrokinetics In stream River Hydrokinetics < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization ABS Alaskan Inc Technology Resource Click here Current Technology Readiness Level Click here TRL 7 8 Open Water System Testing Demonstration and Operation Technology Description New Energy Corporation EnCurrent vertical axis turbine mounted on pontoon barge Technology Dimensions Device Testing Date Submitted 10:01.5 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/In_stream_River_Hydrokinetics&oldid=680959" Category: Marine and Hydrokinetic Technologies What links here Related changes Special pages Printable version

104

Form:Marine and Hydrokinetic Technology Test | Open Energy Information  

Open Energy Info (EERE)

this page on Facebook icon Twitter icon Form:Marine and Hydrokinetic Technology Test Jump to: navigation, search Retrieved from "http:en.openei.orgw...

105

Category:Marine and Hydrokinetic Technology Tests | Open Energy...  

Open Energy Info (EERE)

Technology Tests Jump to: navigation, search Marine and Hydrokinetic Technology Test This category currently contains no pages or media. Retrieved from "http:...

106

MHK Technologies/Tidal Barrage | Open Energy Information  

Open Energy Info (EERE)

Barrage Barrage < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Barrage.jpg Technology Profile Technology Resource Click here Current Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description No information provided Technology Dimensions Device Testing Date Submitted 01:04.7 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Tidal_Barrage&oldid=681672" Category: Marine and Hydrokinetic Technologies What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

107

River Hydrokinetic Resource Atlas | Open Energy Information  

Open Energy Info (EERE)

River Hydrokinetic Resource Atlas River Hydrokinetic Resource Atlas Jump to: navigation, search Tool Summary LAUNCH TOOL Name: River Hydrokinetic Resource Atlas Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy Focus Area: Water Power Resource Type: Maps, Software/modeling tools User Interface: Website Website: maps.nrel.gov/river_atlas Country: United States Web Application Link: maps.nrel.gov/river_atlas Cost: Free UN Region: Northern America Coordinates: 39.7412019515°, -105.172290802° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.7412019515,"lon":-105.172290802,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

108

Tidal Energy  

Energy.gov (U.S. Department of Energy (DOE))

Some of the oldest ocean energy technologies use tidal power. All coastal areas experience two high tides and two low tides over a period of slightly more than 24 hours. For those tidal differences to be harnessed into electricity, the difference between high and low tides must be more than 16 feet (or at least 5 meters). However, there are only about 40 sites on Earth with tidal ranges of this magnitude.

109

HYDROKAL: A module for in-stream hydrokinetic resource assessment  

Science Conference Proceedings (OSTI)

A new tool for hydrokinetic energy potential assessment in rivers-HYDROKAL, which stands for a ''hydrokinetic calculator''-is presented. This tool was developed in the Fortran 90 programming language as an external module for the CCHE2D application, ... Keywords: Instantaneous power density, Numerical modeling, Resource assessment, Stream

Paul Duvoy; Horacio Toniolo

2012-02-01T23:59:59.000Z

110

Tidal Energy System for On-Shore Power Generation  

DOE Green Energy (OSTI)

Addressing the urgent need to develop LCOE competitive renewable energy solutions for US energy security and to replace fossil-fuel generation with the associated benefits to environment impacts including a reduction in CO2 emissions, this Project focused on the advantages of using hydraulic energy transfer (HET) in large-scale Marine Hydrokinetic (MHK) systems for harvesting off-shore tidal energy in US waters. A recent DOE resource assessment, identifies water power resources have a potential to meet 15% of the US electric supply by 2030, with MHK technologies being a major component. The work covered a TRL-4 laboratory proof-in-concept demonstration plus modeling of a 15MW full scale system based on an approach patented by NASA-JPL, in which submerged high-ratio gearboxes and electrical generators in conventional MHK turbine systems are replaced by a submerged hydraulic radial pump coupled to on-shore hydraulic motors driving a generator. The advantages are; first, the mean-time-between-failure (MTBF), or maintenance, can be extended from approximately 1 to 5 years and second, the range of tidal flow speeds which can be efficiently harvested can be extended beyond that of a conventional submerged generator. The approach uses scalable, commercial-off-the-shelf (COTS) components, facilitating scale-up and commercialization. All the objectives of the Project have been successfully met (1) A TRL4 system was designed, constructed and tested. It simulates a tidal energy turbine, with a 2-m diameter blade in up to a 2.9 m/sec flow. The system consists of a drive motor assembly providing appropriate torque and RPM, attached to a radial piston pump. The pump circulates pressurized, environmentally-friendly, HEES hydraulic fluid in a closed loop to an axial piston motor which drives an electrical generator, with a resistive load. The performance of the components, subsystems and system were evaluated during simulated tidal cycles. The pump is contained in a tank for immersion testing. The COTS pump and motor were selected to scale to MW size and were oversized for the TRL-4 demonstration, operating at only 1-6% of rated values. Nevertheless, in for 2-18 kW drive power, in agreement with manufacturer performance data, we measured efficiencies of 85-90% and 75-80% for the pump and motor, respectively. These efficiencies being 95-96% at higher operating powers. (2) Two follow-on paths were identified. In both cases conventional turbine systems can be modified, replacing existing gear box and generator with a hydraulic pump and on-shore components. On a conventional path, a TRL5/6 15kW turbine system can be engineered and tested on a barge at an existing site in Maine. Alternatively, on an accelerated path, a TRL-8 100kW system can be engineered and tested by modifying a team member's existing MHK turbines, with barge and grid-connected test sites in-place. On both paths the work can be expedited and cost effective by reusing TRL-4 components, modifying existing turbines and using established test sites. (3) Sizing, performance modeling and costing of a scaled 15MW system, suitable for operation in Maine's Western Passage, was performed. COTS components are identified and the performance projections are favorable. The estimated LCOE is comparable to wind generation with peak production at high demand times. (4) We determined that a similar HET approach can be extended to on-shore and off-shore wind turbine systems. These are very large energy resources which can be addressed in parallel for even great National benefit. (5) Preliminary results on this project were presented at two International Conferences on renewable energy in 2012, providing a timely dissemination of information. We have thus demonstrated a proof-in-concept of a novel, tidal HET system that eliminates all submerged gears and electronics to improve reliability. Hydraulic pump efficiencies of 90% have been confirmed in simulated tidal flows between 1 and 3 m/s, and at only 1-6% of rated power. Total system efficiencies have also been modeled, up to MW-scale, for ti

Bruce, Allan J

2012-06-26T23:59:59.000Z

111

Tidal Energy System for On-Shore Power Generation  

SciTech Connect

Addressing the urgent need to develop LCOE competitive renewable energy solutions for US energy security and to replace fossil-fuel generation with the associated benefits to environment impacts including a reduction in CO2 emissions, this Project focused on the advantages of using hydraulic energy transfer (HET) in large-scale Marine Hydrokinetic (MHK) systems for harvesting off-shore tidal energy in US waters. A recent DOE resource assessment, identifies water power resources have a potential to meet 15% of the US electric supply by 2030, with MHK technologies being a major component. The work covered a TRL-4 laboratory proof-in-concept demonstration plus modeling of a 15MW full scale system based on an approach patented by NASA-JPL, in which submerged high-ratio gearboxes and electrical generators in conventional MHK turbine systems are replaced by a submerged hydraulic radial pump coupled to on-shore hydraulic motors driving a generator. The advantages are; first, the mean-time-between-failure (MTBF), or maintenance, can be extended from approximately 1 to 5 years and second, the range of tidal flow speeds which can be efficiently harvested can be extended beyond that of a conventional submerged generator. The approach uses scalable, commercial-off-the-shelf (COTS) components, facilitating scale-up and commercialization. All the objectives of the Project have been successfully met (1) A TRL4 system was designed, constructed and tested. It simulates a tidal energy turbine, with a 2-m diameter blade in up to a 2.9 m/sec flow. The system consists of a drive motor assembly providing appropriate torque and RPM, attached to a radial piston pump. The pump circulates pressurized, environmentally-friendly, HEES hydraulic fluid in a closed loop to an axial piston motor which drives an electrical generator, with a resistive load. The performance of the components, subsystems and system were evaluated during simulated tidal cycles. The pump is contained in a tank for immersion testing. The COTS pump and motor were selected to scale to MW size and were oversized for the TRL-4 demonstration, operating at only 1-6% of rated values. Nevertheless, in for 2-18 kW drive power, in agreement with manufacturer performance data, we measured efficiencies of 85-90% and 75-80% for the pump and motor, respectively. These efficiencies being 95-96% at higher operating powers. (2) Two follow-on paths were identified. In both cases conventional turbine systems can be modified, replacing existing gear box and generator with a hydraulic pump and on-shore components. On a conventional path, a TRL5/6 15kW turbine system can be engineered and tested on a barge at an existing site in Maine. Alternatively, on an accelerated path, a TRL-8 100kW system can be engineered and tested by modifying a team member's existing MHK turbines, with barge and grid-connected test sites in-place. On both paths the work can be expedited and cost effective by reusing TRL-4 components, modifying existing turbines and using established test sites. (3) Sizing, performance modeling and costing of a scaled 15MW system, suitable for operation in Maine's Western Passage, was performed. COTS components are identified and the performance projections are favorable. The estimated LCOE is comparable to wind generation with peak production at high demand times. (4) We determined that a similar HET approach can be extended to on-shore and off-shore wind turbine systems. These are very large energy resources which can be addressed in parallel for even great National benefit. (5) Preliminary results on this project were presented at two International Conferences on renewable energy in 2012, providing a timely dissemination of information. We have thus demonstrated a proof-in-concept of a novel, tidal HET system that eliminates all submerged gears and electronics to improve reliability. Hydraulic pump efficiencies of 90% have been confirmed in simulated tidal flows between 1 and 3 m/s, and at only 1-6% of rated power. Total system efficiencies have also been modeled, up to MW-sca

Bruce, Allan J

2012-06-26T23:59:59.000Z

112

Performance Evaluation of HYCOM-GOM for Hydrokinetic Resource Assessment in the Florida Strait  

SciTech Connect

The U.S. Department of Energy (DoE) is assessing and mapping the potential off-shore ocean current hydrokinetic energy resources along the U.S. coastline, excluding tidal currents, to facilitate market penetration of water power technologies. This resource assessment includes information on the temporal and three-dimensional spatial distribution of the daily averaged power density, and the overall theoretical hydrokinetic energy production, based on modeled historical simulations spanning a 7-year period of record using HYCOM-GOM, an ocean current observation assimilation model that generates a spatially distributed three-dimensional representation of daily averaged horizontal current magnitude and direction time series from which power density time series and their statistics can be derived. This study ascertains the deviation of HYCOM-GOM outputs, including transport (flow) and power density, from outputs based on three independent observation sources to evaluate HYCOM-GOM performance. The three independent data sources include NOAA s submarine cable data of transport, ADCP data at a high power density location, and HF radar data in the high power density region of the Florida Strait. Comparisons with these three independent observation sets indicate discrepancies with HYCOM model outputs, but overall indicate that the HYCOM-GOM model can provide an adequate assessment of the ocean current hydrokinetic resource in high power density regions like the Florida Strait. Additional independent observational data, in particular stationary ADCP measurements, would be useful for expanding this model performance evaluation study. ADCP measurements are rare in ocean environments not influenced by tides, and limited to one location in the Florida Strait. HF radar data, although providing great spatial coverage, is limited to surface currents only.

Neary, Vincent S [ORNL; Gunawan, Budi [ORNL; Ryou, Albert S [ORNL

2012-06-01T23:59:59.000Z

113

Three-Phase Modular Cascaded H-Bridge Multilevel Inverter with Individual MPPT for Grid-Connected Photovoltaic Systems  

SciTech Connect

A three-phase modular cascaded H-bridge multilevel inverter for a grid-connected photovoltaic (PV) system is presented in this paper. To maximize the solar energy extraction of each PV string, an individual maximum power point tracking (MPPT) control scheme is applied, which allows the independent control of each dc-link voltage. PV mismatches may introduce unbalanced power supplied to the three-phase system. To solve this issue, a control scheme with modulation compensation is proposed. The three-phase modular cascaded multilevel inverter prototype has been built. Each H-bridge is connected to a 185 W solar panel. Simulation and experimental results are presented to validate the proposed ideas.

Xiao, Bailu [ORNL; Hang, Lijun [ORNL; Riley, Cameron [University of Tennessee, Knoxville (UTK); Tolbert, Leon M [ORNL; Ozpineci, Burak [ORNL

2013-01-01T23:59:59.000Z

114

Challenges and Instrumentation Solutions to Understanding the Nature of Tidal Flows  

NLE Websites -- All DOE Office Websites (Extended Search)

Approach to Characterization of Full-Spectrum Approach to Characterization of Full-Spectrum Turbulence Near Current Tidal Energy Devices Presented by Brett Prairie of Rockland Scientific at the Marine and Hydrokinetic Technology and Environmental Instrumentation, Measurement & Computer Modeling Workshop Broomfield, Colorado July 9 - 11, 2012 ©2012 Rockland Scientific Inc. Presentation Agenda ©2012 Rockland Scientific Inc. 1. Introduction & Background 2. The importance of full-spectrum turbulence characterization for current tidal energy project development 3. How non-acoustic measurements can characterize small-scale turbulence near current tidal energy devices 4. Development of a continuous monitoring system to measure full-spectrum turbulence for the National Renewable Energy Laboratory

115

Water Power Program: Marine and Hydrokinetic Resource Assessment...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

the Tidal Streams Resource Map. Tidal Streams Resource Assessment The Assessment of the Energy Production from Tidal Streams in the United States report, created by Georgia Tech,...

116

Sensitivity analysis for optimal sizing of a PV grid connected home G.WARKOZEK S.PLOIX* M.JACOMINO* F.WURTZ  

E-Print Network (OSTI)

integration of PV in the building...etc. · Energy market data. This information includes energy prices (sell of specified energy market (HSEM): I Sensitivity analysis for optimal sizing of a PV grid connected home G.WARKOZEK S.PLOIX* M.JACOMINO* F

Paris-Sud XI, Université de

117

Form:Marine and Hydrokinetic Technology Project | Open Energy Information  

Open Energy Info (EERE)

Form Form Edit History Facebook icon Twitter icon » Form:Marine and Hydrokinetic Technology Project Jump to: navigation, search Add a Marine and Hydrokinetic Technology Project Input the name of your Marine and Hydrokinetic Technology Project below to add it to the registry. If your project is already in the registry, the form will be populated with that project's fields and you may edit. MHK_Projects/ Submit The text entered into this field will be used as the name of the project being defined. All projects are automatically prefixed with MHK_Projects/. The field is case sensitive so be sure to capitalize in the correct areas and type the full title properly. << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=Form:Marine_and_Hydrokinetic_Technology_Project&oldid=688143"

118

NREL: Dynamic Maps, GIS Data, and Analysis Tools - Marine & Hydrokinet...  

NLE Websites -- All DOE Office Websites (Extended Search)

easier. A screen capture of the MapSearch Map view option Marine & Hydrokinetic Maps Hydropower already provides 6-7% of the nation's electricity, and the ocean represents a...

119

Tidal Generation Ltd | Open Energy Information  

Open Energy Info (EERE)

Ltd Ltd Jump to: navigation, search Name Tidal Generation Ltd Address University Gate East Park Row Place Bristol, United Kingdom Zip BS1 5UB Sector Marine and Hydrokinetic Product Tidal Generation is developing a 1MW fully submerged tidal turbine to generate electricity from tidal currents in water depths up to 50m. Phone number 4.41E+11 Website http://www.tidalgeneration.co. Coordinates 42.55678°, -88.050449° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.55678,"lon":-88.050449,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

120

Grid-connected integrated community energy system. Phase II, Stage 1, final report. Conceptual design: pyrolysis and waste management systems  

DOE Green Energy (OSTI)

The University of Minnesota is studying and planning a grid-connected integrated community energy system to include disposal of wastes from health centers and utilizing the heat generated. Following initial definition of the 7-county metropolitan region for which the solid waste management system is to be planned, information is then necessary about the nature of the waste generated within this region. Estimates of the quantities generated, generation rates, and properties of the waste to be collected and disposed of are required in order to determine the appropriate size and capacity of the system. These estimates are designated and subsequently referred to as ''system input''. Institutional information is also necessary in designing the planned system, to be compatible with existing institutional operations and procedures, or to offer a minimum amount of problems to the participating institution in the region. Initial considerations of health care institutions generating solid waste within the defined region are made on a comprehensive basis without any attempt to select out or include feasible candidate institutions, or institutional categories. As the study progresses, various criteria are used in selecting potential candidate institutional categories and institutions within the 7-county region as offering the most feasible solid waste system input to be successfully developed into a centralized program; however, it is hoped that such a system if developed could be maintained for the entire 7-county region, and remain comprehensive to the entire health care industry. (MCW)

Not Available

1978-03-08T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Development of a low-cost integrated 20-kW ac solar tracking sub- array for grid-connected PV power system applications. Phase 1, Annual technical report, 11 July 1995--31 July 1996  

DOE Green Energy (OSTI)

The overall goal of this effort is to reduce the installed cost of utility scale grid connected photovoltaic power systems. The focus of the effort is on ``BOS`` (Balance-Of-System) component manufacturing technology, which essentially involves all PV power system engineering, manufacturing, assembly and construction tasks from the receipt of a PV module to the deliver of grid connected electricity.

Stern, M.; West, R.; Fourer, G.; Whalen, W.; Van Loo, M.; Duran, G. [Utility Power Group, Chatsworth, CA (United States)

1997-06-01T23:59:59.000Z

122

Grid-Connected Integrated Community Energy System. Phase II: detailed feasibility analysis and preliminary design. Final report, Stage 2  

SciTech Connect

The purpose of this study was to determine the economic and environmental feasibility of a Grid-Connected Integrated Community Energy System (ICES) based on a multifuel (gas, oil, treated solid wastes, and coal) design with which to serve any or all the institutions within the Louisiana Medical Complex in cooperation with the Health Education Authority of Louisiana (HEAL). In this context, a preliminary design is presented which consists of ICES plant description and engineering analyses. This demonstration system is capable of meeting 1982 system demands by providing 10,000 tons of air conditioning and, from a boiler plant with a high-pressure steam capacity of 200,000 lb/h, approximately 125,000 lb/h of 185 psig steam to the HEAL institutions, and at the same time generating up to 7600 kW of electrical power as byproduct energy. The plant will consist of multiple-fuel steam boilers, turbine generator, turbine driven chillers and necessary auxiliaries and ancillary systems. The preliminary design for these systems and for the building to house the central plant systems are presented along with equipment and instrumentation schedules and outline specifications for major components. Costs were updated to reflect revised data. The final preliminary cost estimate includes allowances for contingencies and escalation, as well as cost for the plant site and professional fees. This design is for a facility specifically with coal burning capability, recognizing that it is more capital-intensive than a gas/oil facility. In the opinion of the Louisiana Department of Natural Resources (DNR), the relatively modest allocations made for scrubbing and ash removal involve less than is implied in standard industry (EPRI) cost increments of over 30% for these duties. The preliminary environmental assessment is included. (LCL)

1978-11-01T23:59:59.000Z

123

Multnomah County Hydrokinetic Feasibility Study: Final Feasibility Study Report  

Science Conference Proceedings (OSTI)

HDR has completed a study of the technical, regulatory, and economic feasibility of installing hydrokinetic turbines under the Morrison, Broadway, and Sellwood bridges. The primary objective of installing hydrokinetic turbines is a demonstration of in-stream hydrokinetic technologies for public education and outreach. Due to the low gradient of the Lower Willamette and the effects of the tide, velocities in the area in consideration are simply not high enough to economically support a commercial installation. While the velocities in the river may at times provide enough energy for a commercial turbine to reach capacity, the frequency and duration of high flow events which provide suitable velocities is not sufficient to support a commercial hydrokinetic installation. We have observed that over an 11 year period, daily average velocities in the Lower Willamette exceeded a nominal cut-in speed of 0.75 m/s only 20% of the time, leaving net zero power production for the remaining 80% of days. The Sellwood Bridge site was estimated to have the best hydrokinetic resource, with an estimated average annual production of about 9,000 kWh. The estimated production could range from 2,500 kWh to 15,000 kWh. Based on these energy estimates, the amount of revenue generated through either a power purchase agreement (PPA) or recovered through net metering is not sufficient to repay the project costs within the life of the turbine. The hydrokinetic resource at the Morrison and Broadway Bridges is slightly smaller than at the Sellwood Bridge. While the Broadway and Morrison Bridges have existing infrastructure that could be utilized, the project is not expected to generate enough revenue to repay the investment. Despite low velocities and energy production, the sites themselves are favorable for installation of a demonstration or experimental project. With high public interest in renewable energy, the possibility exists to develop a hydrokinetic test site which could provide developers and scientists a location to temporarily deploy and test hydrokinetic devices, and also function as an educational tool for the general public. Bridge piers provide an excellent pre-existing anchor point for hydrokinetic devices, and existing infrastructure at the Morrison and Broadway Bridges may reduce installation costs. Opportunity exists to partner with local universities with engineering and environmental interest in renewable energy. A partnership with Portland State University�¢����s engineering school could provide students with an opportunity to learn about hydrokinetics through senior design projects. Oregon State University and University of Washington, which are partnered through the Northwest National Marine Renewable Energy Center (NNMREC) to study and test hydrokinetic technology, are also relatively local to the site. In addition to providing an opportunity for both public and private entities to learn technically about in-stream kinetics, this approach will encourage grant funding for outreach, education, and product development, while also serving as a positive community relations opportunity for the County and its partners.

Stephen Spain

2012-03-15T23:59:59.000Z

124

Identifying How Marine and Hydrokinetic Devices Affect Aquatic Environments  

Science Conference Proceedings (OSTI)

Significant research is under way to determine the potential environmental effects of marine and hydrokinetic energy systems. This research, being guided and funded by the U.S. Department of Energy, is intended to address knowledge gaps and facilitate installation and operation of these systems.

Cada, G. F.; Copping, Andrea E.; Roberts, Jesse

2011-04-24T23:59:59.000Z

125

Marine and Hydrokinetic Technology Glossary | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Glossary Marine and Hydrokinetic Technology Glossary (Redirected from Hybrid) Jump to: navigation, search << Return to the MHK database homepage Contents 1 Wave Power 1.1 Point Absorber 1.1.1 Submerged Pressure Differential (Example of a Point Absorber) 1.2 Oscillating Water Column 1.3 Overtopping Device 1.4 Attentuator 1.5 Oscillating Wave Surge Converter 2 Current Power 2.1 Axial Flow Turbine 2.2 Cross Flow Turbine 2.3 Reciprocating Device 2.3.1 Oscillating Hydrofoil: (Example of a Reciprocating Device) 3 Ocean Thermal Energy Conversion (OTEC) 3.1 Closed-cycle 3.2 Open-cycle 3.3 Hybrid Wave Power Graphics adapted from Bedard and Thresher Point Absorber Pointabsorber.jpg Wave energy capture device, with principal dimension relatively small compared to the wavelength, and is able to capture energy from a wave front

126

Marine and Hydrokinetic Technology Glossary | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Glossary Marine and Hydrokinetic Technology Glossary (Redirected from Attenuator) Jump to: navigation, search << Return to the MHK database homepage Contents 1 Wave Power 1.1 Point Absorber 1.1.1 Submerged Pressure Differential (Example of a Point Absorber) 1.2 Oscillating Water Column 1.3 Overtopping Device 1.4 Attentuator 1.5 Oscillating Wave Surge Converter 2 Current Power 2.1 Axial Flow Turbine 2.2 Cross Flow Turbine 2.3 Reciprocating Device 2.3.1 Oscillating Hydrofoil: (Example of a Reciprocating Device) 3 Ocean Thermal Energy Conversion (OTEC) 3.1 Closed-cycle 3.2 Open-cycle 3.3 Hybrid Wave Power Graphics adapted from Bedard and Thresher Point Absorber Pointabsorber.jpg Wave energy capture device, with principal dimension relatively small compared to the wavelength, and is able to capture energy from a wave front

127

Marine and Hydrokinetic Technology Glossary | Open Energy Information  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Glossary Marine and Hydrokinetic Technology Glossary Jump to: navigation, search << Return to the MHK database homepage Contents 1 Wave Power 1.1 Point Absorber 1.1.1 Submerged Pressure Differential (Example of a Point Absorber) 1.2 Oscillating Water Column 1.3 Overtopping Device 1.4 Attentuator 1.5 Oscillating Wave Surge Converter 2 Current Power 2.1 Axial Flow Turbine 2.2 Cross Flow Turbine 2.3 Reciprocating Device 2.3.1 Oscillating Hydrofoil: (Example of a Reciprocating Device) 3 Ocean Thermal Energy Conversion (OTEC) 3.1 Closed-cycle 3.2 Open-cycle 3.3 Hybrid Wave Power Graphics adapted from Bedard and Thresher Point Absorber Pointabsorber.jpg Wave energy capture device, with principal dimension relatively small compared to the wavelength, and is able to capture energy from a wave front

128

MHK Projects/Passamaquoddy Tribe Hydrokinetic Project | Open Energy  

Open Energy Info (EERE)

Passamaquoddy Tribe Hydrokinetic Project Passamaquoddy Tribe Hydrokinetic Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.0234,"lon":-67.0672,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

129

MHK Projects/Atchafalaya River Hydrokinetic Project II | Open Energy  

Open Energy Info (EERE)

Atchafalaya River Hydrokinetic Project II Atchafalaya River Hydrokinetic Project II < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":30.9828,"lon":-91.7994,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

130

MHK Projects/Sakonnet River Hydrokinetic Project | Open Energy Information  

Open Energy Info (EERE)

Sakonnet River Hydrokinetic Project Sakonnet River Hydrokinetic Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.6224,"lon":-71.2153,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

131

MHK Technologies/Deep water capable hydrokinetic turbine | Open Energy  

Open Energy Info (EERE)

water capable hydrokinetic turbine water capable hydrokinetic turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage 275px Technology Profile Primary Organization Hills Inc Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 4 Proof of Concept Technology Description It is an axial flow shrouded turbine direct connected to a water pump that delivers water to an on shore genetator Being completely water proof and submersible the device can operate at any water depth Mooring Configuration An array of turbines are teathered to a cable that is anchored via a dead weight Optimum Marine/Riverline Conditions This system is designed for use in Florida s Gulf Stream however any constant ocean current is suitable

132

MHK Technologies/Hydrokinetic Power Barge | Open Energy Information  

Open Energy Info (EERE)

Power Barge Power Barge < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Hydrokinetic Power Barge.jpg Technology Profile Primary Organization Onsite Recovered Energy LP Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description The Vurbine proprietary technology design and assembly mounted on a horizontal shaft on a twin hull pontoon or barge CAT or SWATH combines reaction and impulse technologies which can efficiently harvest hydrokinetic energy from flowing water in a low impact application Technology Dimensions Device Testing Date Submitted 36:51.7 << Return to the MHK database homepage

133

Hydro-kinetic approach to relativistic heavy ion collisions  

E-Print Network (OSTI)

We develop a combined hydro-kinetic approach which incorporates hydrodynamical expansion of the systems formed in \\textit{A}+\\textit{A} collisions and their dynamical decoupling described by escape probabilities. The method corresponds to a generalized relaxation time ($\\tau_{\\text{rel}}$) approximation for Boltzmann equation applied to inhomogeneous expanding systems; at small $\\tau_{\\text{rel}}$ it also allows one to catch the viscous effects in hadronic component - hadron-resonance gas. We demonstrate how the approximation of sudden freeze-out can be obtained within this dynamical picture of continuous emission and find that hypersurfaces, corresponding to sharp freeze-out limit, are momentum dependent. The pion $m_{T}$ spectra are computed in the developed hydro-kinetic model, and compared with those obtained from ideal hydrodynamics with the Cooper-Frye isothermal prescription. Our results indicate that there does not exist a universal freeze-out temperature for pions with different momenta, and support ...

Akkelin, S V; Karpenko, Iu A; Sinyukov, Yu M

2008-01-01T23:59:59.000Z

134

MHK Projects/Yukon River Hydrokinetic Turbine Project | Open Energy  

Open Energy Info (EERE)

Yukon River Hydrokinetic Turbine Project Yukon River Hydrokinetic Turbine Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":64.7883,"lon":-141.198,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

135

Marine and Hydrokinetic Technology Readiness Level | Open Energy  

Open Energy Info (EERE)

Marine and Hydrokinetic Technology Readiness Level Marine and Hydrokinetic Technology Readiness Level Jump to: navigation, search << Return to the MHK database homepage This field indicates the stage of development/deployment that technologies, which are undergoing partial or full-scale device testing, are currently in. Contents 1 TRL 1-3: Discovery / Concept Definition / Early Stage Development, Design, and Engineering 2 TRL 4: Proof of Concept 3 TRL 5/6: System Integration and Technology Laboratory Demonstration 4 TRL 7/8: Open Water System Testing, Demonstration, and Operation 5 TRL 9: Commercial-Scale Production / Application TRL 1-3: Discovery / Concept Definition / Early Stage Development, Design, and Engineering The purpose of this stage is to evaluate, to the largest extent possible, the scientific or technical merit and feasibility of ideas that appear to

136

Development of a low cost integrated 15 kW A.C. solar tracking sub-array for grid connected PV power system applications  

SciTech Connect

Utility Power Group has achieved a significant reduction in the installed cost of grid-connected PV systems. The two part technical approach focused on (1) The utilization of a large area factory assembled PV panel, and (2) The integration and packaging of all sub-array power conversion and control functions within a single factory produced enclosure. Eight engineering prototype 15kW ac single axis solar tracking sub-arrays were designed, fabricated, and installed at the Sacramento Municipal Utility District{close_quote}s Hedge Substation site in 1996 and are being evaluated for performance and reliability. A number of design enhancements will be implemented in 1997 and demonstrated by the field deployment and operation of over twenty advanced sub-array PV power systems. {copyright} {ital 1997 American Institute of Physics.}

Stern, M.; West, R.; Fourer, G.; Whalen, W.; Van Loo, M.; Duran, G. [Utility Power Group, 9410 G De Soto Avenue, Chatsworth, California 91311 (United States)

1997-02-01T23:59:59.000Z

137

Grid Connected Integrated Community Energy System. Volume 1. Summary and demonstration site description. Final report, Phase I, February 1, 1977-May 31, 1977  

SciTech Connect

The University of Minnesota and its partners - St. Mary's and Fairview hospitals, Augsburg College, Northern States Power Company, and possibly some small add-on customers - will develop the feasibility of a Grid-Connected Integrated Community Energy System utilizing cogeneration of electricity as a byproduct of steam in an educational, residential, hospital, and commercial community. An overview of the site is given. The geographical location, spatial data topographical data, and modes of transportation to and from the site are given. Environmental data (geology, surficial geology, regional watershed, trees, building shadows, climatological data, environmental quality data, and the microclimate) are discussed. The open space, outdoor use, and wildlife habitat are assessed. Information on the building sectors includes sector energy density, night time usage, building construction, steam adsorption air conditioning, electric air conditioning, and University Hospital air conditioning. The building sector energy profiles and the special service sectors are described. (MCW)

Soderberg, W.E.; O' Gara, J.C.; Reid, R.A.; Lewis, R.; Ervasti, M.; Pearce, J.

1977-06-01T23:59:59.000Z

138

Grid-connected integrated community energy system. Phase II, Stage 2, final report. Preliminary design pyrolysis facility. [Andco-Torrax system  

DOE Green Energy (OSTI)

The University of Minnesota is studying and planning a grid connected integrated community energy system to include disposal of wastes from health centers and utilizing the heat generated. The University of Minnesota has purchased the so called Southeast Generating Station from the Northern States Power Company. This plant contains two coal-fired boilers that will be retrofitted to burn low-sulfur Montana coal. Building modifications and additions will be made to support the components of the Andco-Torrax system and integrate the system with the rest of the plant. The Andco-Torrax system is a new high-temperature refuse-conversion process known technically as slagging pyrolysis. Although the pyrolysis of solid waste is a relatively new innovation, pyrolysis processes have been used for years by industry. This report covers the preliminary design and operation of the system. (MCW)

Not Available

1978-03-22T23:59:59.000Z

139

Department of Energy Awards $37 Million for Marine and Hydrokinetic Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

$37 Million for Marine and Hydrokinetic $37 Million for Marine and Hydrokinetic Energy Technology Development Department of Energy Awards $37 Million for Marine and Hydrokinetic Energy Technology Development September 9, 2010 - 12:00am Addthis Washington, DC - U.S. Energy Secretary Steven Chu today announced selections for more than $37 million in funding to accelerate the technological and commercial readiness of emerging marine and hydrokinetic (MHK) technologies, which seek to generate renewable electricity from the nation's oceans and free-flowing rivers and streams. The 27 projects range from concept studies and component design research to prototype development and in-water device testing. This unprecedented level of funding will advance the ability of marine and hydrokinetic energy technologies to

140

Department of Energy Awards $37 Million for Marine and Hydrokinetic Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy Awards $37 Million for Marine and Hydrokinetic Department of Energy Awards $37 Million for Marine and Hydrokinetic Energy Technology Development Department of Energy Awards $37 Million for Marine and Hydrokinetic Energy Technology Development September 9, 2010 - 12:00am Addthis Washington, DC - U.S. Energy Secretary Steven Chu today announced selections for more than $37 million in funding to accelerate the technological and commercial readiness of emerging marine and hydrokinetic (MHK) technologies, which seek to generate renewable electricity from the nation's oceans and free-flowing rivers and streams. The 27 projects range from concept studies and component design research to prototype development and in-water device testing. This unprecedented level of funding will advance the ability of marine and hydrokinetic energy technologies to

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Laboratory Experiments on the Effects of Blade Strike from Hydrokinetic Energy Technologies on Larval and Juvenile Freshwater Fishes  

DOE Green Energy (OSTI)

There is considerable interest in the development of marine and hydrokinetic energy projects in rivers, estuaries, and coastal ocean waters of the United States. Hydrokinetic (HK) technologies convert the energy of moving water in river or tidal currents into electricity, without the impacts of dams and impoundments associated with conventional hydropower or the extraction and combustion of fossil fuels. The Federal Energy Regulatory Commission (FERC) maintains a database that displays the geographical distribution of proposed HK projects in inland and tidal waters (FERC 2012). As of March 2012, 77 preliminary permits had been issued to private developers to study HK projects in inland waters, the development of which would total over 8,000 MW. Most of these projects are proposed for the lower Mississippi River. In addition, the issuance of another 27 preliminary permits for HK projects in inland waters, and 3 preliminary permits for HK tidal projects (totaling over 3,100 MW) were under consideration by FERC. Although numerous HK designs are under development (see DOE 2009 for a description of the technologies and their potential environmental effects), the most commonly proposed current-based projects entail arrays of rotating devices, much like submerged wind turbines, that are positioned in the high-velocity (high energy) river channels. The many diverse HK designs imply a diversity of environmental impacts, but a potential impact common to most is the risk for blade strike to aquatic organisms. In conventional hydropower generation, research on fish passage through reaction turbines at low-head dams suggested that strike and mortality for small fish could be low. As a consequence of the large surface area to mass ratio of small fish, the drag forces in the boundary layer flow at the surface of a rotor blade may pull small fish around the leading edge of a rotor blade without making physical contact (Turnpenny 1998, Turnpenny et al. 2000). Although there is concern that small, fragile fish early life stages may be unable to avoid being struck by the blades of hydrokinetic turbines, we found no empirical data in the published literature that document survival of earliest life-stage fish in passage by rotor blades. In addition to blade strike, research on passage of fish through conventional hydropower turbines suggested that fish mortalities from passage through the rotor swept area could also occur due to shear stresses and pressure chances in the water column (Cada et al. 1997, Turnpenny 1998). However, for most of the proposed HK turbine designs the rotors are projected to operate a lower RPM (revolutions per minute) than observed from conventional reaction turbines; the associated shear stress and pressure changes are expected to be lower and pose a smaller threat to fish survival (DOE 2009). Only a limited number of studies have been conducted to examine the risk of blade strike from hydrokinetic technologies to fish (Turnpenny et al. 1992, Normandeau et al. 2009, Seitz et al. 2011, EPRI 2011); the survival of drifting or weakly swimming fish (especially early life stages) that encounter rotor blades from hydrokinetic (HK) devices is currently unknown. Our study addressed this knowledge gap by testing how fish larvae and juveniles encountered different blade profiles of hydrokinetic devices and how such encounters influenced survivorship. We carried out a laboratory study designed to improve our understanding of how fish larvae and juvenile fish may be affected by encounters with rotor blades from HK turbines in the water column of river and ocean currents. (For convenience, these early life stages will be referred to as young of the year, YOY). The experiments developed information needed to quantify the risk (both probability and consequences) of rotor-blade strike to YOY fish. In particular, this study attempted to determine whether YOY drifting in a high-velocity flow directly in the path of the blade leading edge will make contact with the rotor blade or will bypass the blade while entrained in the boundary l

Schweizer, Peter E [ORNL; Cada, Glenn F [ORNL; Bevelhimer, Mark S [ORNL

2012-03-01T23:59:59.000Z

142

Puget Sound Tidal Energy In-Water Testing and Development Project Final Technical Report  

DOE Green Energy (OSTI)

The District collaborated extensively with project stakeholders to complete the tasks for this award. This included Federal, State, and local government agencies, tribal governments, environmental groups, and others. All required permit and license applications were completed and submitted under this award, including a Final License Application for a pilot hydrokinetic license from the Federal Energy Regulatory Commission. The tasks described above have brought the project through all necessary requirements to construct a tidal pilot project in Admiralty Inlet with the exception of final permit and license approvals, and the selection of a general contractor to perform project construction.

Craig W. Collar

2012-11-16T23:59:59.000Z

143

Panel: Microgrid Research and Field Testing IEEE PES General Meeting, 24-28 June 2007, Tampa, FL 1 In general, a microgrid can operate in both the grid-connected  

E-Print Network (OSTI)

Panel: Microgrid Research and Field Testing IEEE PES General Meeting, 24-28 June 2007, Tampa, FL 1 Abstract In general, a microgrid can operate in both the grid-connected mode and the islanded mode where the microgrid is interfaced to the main power system by a fast semiconductor switch called static switch, (SS

144

JEDI Marine and Hydrokinetic Model: User Reference Guide  

SciTech Connect

The Jobs and Economic Development Impact Model (JEDI) for Marine and Hydrokinetics (MHK) is a user-friendly spreadsheet-based tool designed to demonstrate the economic impacts associated with developing and operating MHK power systems in the United States. The JEDI MHK User Reference Guide was developed to assist users in using and understanding the model. This guide provides information on the model's underlying methodology, as well as the sources and parameters used to develop the cost data utilized in the model. This guide also provides basic instruction on model add-in features, operation of the model, and a discussion of how the results should be interpreted.

Goldberg, M.; Previsic, M.

2011-04-01T23:59:59.000Z

145

2011 Marine and Hydrokinetic Device Modeling Workshop: Final Report  

NLE Websites -- All DOE Office Websites (Extended Search)

PROGRAM PROGRAM � 2011 Marine Hydrokinetic Device Modeling Workshop: Final Report March 1, 2011 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation,

146

Template:Marine and Hydrokinetic Technology | Open Energy Information  

Open Energy Info (EERE)

Technology Technology Jump to: navigation, search This is the Marine and Hydrokinetic Technology template. It is designed for use by MHK Technologies Pages. To define an MHK Technology, please use this form. Parameters Image - Associated image file. (optional) Primary Organization - Field def missing! Project(s) where this technology is utilized - Field def missing! Technology Resource - Field def missing! Technology Type - Field def missing! Technology Readiness Level - Field def missing! Technology Description - Field def missing! Designed to Operate with Shore Connection - Field def missing! Power Transfer Method - Field def missing! Water Column Location - Field def missing! Mooring Configuration - Field def missing! Optimum Marine/Riverline Conditions - Field def missing!

147

JEDI Marine and Hydrokinetic Model: User Reference Guide  

SciTech Connect

The Jobs and Economic Development Impact Model (JEDI) for Marine and Hydrokinetics (MHK) is a user-friendly spreadsheet-based tool designed to demonstrate the economic impacts associated with developing and operating MHK power systems in the United States. The JEDI MHK User Reference Guide was developed to assist users in using and understanding the model. This guide provides information on the model's underlying methodology, as well as the sources and parameters used to develop the cost data utilized in the model. This guide also provides basic instruction on model add-in features, operation of the model, and a discussion of how the results should be interpreted.

Goldberg, M.; Previsic, M.

2011-04-01T23:59:59.000Z

148

Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental Shelf  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Interior the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs OCS EIS/EA BOEM 2013-01140 Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental Shelf Offshore Florida Revised Environmental Assessment OCS EIS/EA BOEM 2013-01140 Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental Shelf Offshore Florida Revised Environmental Assessment Author Bureau of Ocean Energy Management Office of Renewable Energy Programs Published by U.S. Department of the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs August 2013 iii FINDING OF NO SIGNIIFCANT IMPACT Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental

149

Tidal heating and tidal evolution in the solar system  

E-Print Network (OSTI)

In this thesis, we examine the effects of tidal dissipation on solid bodies in application and in theory. First, we study the effects of tidal heating and tidal evolution in the Saturnian satellite system. We constrain the ...

Meyer, Jennifer Ann

2011-01-01T23:59:59.000Z

150

Energy Basics: Tidal Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Ocean Thermal Energy Conversion Tidal Energy Wave Energy...

151

Tidal Wetlands Regulations (Connecticut)  

Energy.gov (U.S. Department of Energy (DOE))

Most activities occurring in or near tidal wetlands are regulated, and this section contains information on such activities and required permit applications for proposed activities. Applications...

152

Hydro-kinetic approach to relativistic heavy ion collisions  

E-Print Network (OSTI)

We develop a combined hydro-kinetic approach which incorporates a hydrodynamical expansion of the systems formed in \\textit{A}+\\textit{A} collisions and their dynamical decoupling described by escape probabilities. The method corresponds to a generalized relaxation time ($\\tau_{\\text{rel}}$) approximation for the Boltzmann equation applied to inhomogeneous expanding systems; at small $\\tau_{\\text{rel}}$ it also allows one to catch the viscous effects in hadronic component - hadron-resonance gas. We demonstrate how the approximation of sudden freeze-out can be obtained within this dynamical picture of continuous emission and find that hypersurfaces, corresponding to a sharp freeze-out limit, are momentum dependent. The pion $m_{T}$ spectra are computed in the developed hydro-kinetic model, and compared with those obtained from ideal hydrodynamics with the Cooper-Frye isothermal prescription. Our results indicate that there does not exist a universal freeze-out temperature for pions with different momenta, and support an earlier decoupling of higher $p_{T}$ particles. By performing numerical simulations for various initial conditions and equations of state we identify several characteristic features of the bulk QCD matter evolution preferred in view of the current analysis of heavy ion collisions at RHIC energies.

S. V. Akkelin; Y. Hama; Iu. A. Karpenko; Yu. M. Sinyukov

2008-04-25T23:59:59.000Z

153

Tidal Response in Estuaries  

Science Conference Proceedings (OSTI)

A new general theory has been developed to determine both the tidal response of estuaries and the effects of cross-channel tidal barriers on this response. The theory is shown to be widely applicable and provides a connecting framework against ...

D. Prandle; M. Rahman

1980-10-01T23:59:59.000Z

154

Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Add description List of Tidal Energy Incentives Retrieved from "http:en.openei.orgwindex.php?titleTidalEnergy&oldid267201" Category: Articles with outstanding TODO tasks...

155

Fish Passage Through Turbines: Application of Conventional Hydropower Data to Hydrokinetic Technologies  

Science Conference Proceedings (OSTI)

The potential for fish populations to be negatively impacted by hydrokinetic turbines is a major issue associated with the development and licensing of this type of renewable energy source. Such impacts may include habitat alteration, disruptions in migrations and movements, and injury and mortality to fish that encounter turbines. In particular, there is considerable concern for fish and other aquatic organisms to interact with hydrokinetic turbines in a manner that could lead to alterations in normal b...

2011-10-31T23:59:59.000Z

156

Puget Sound Tidal Energy In-Water Testing and Development Project Final Technical Report  

Science Conference Proceedings (OSTI)

Tidal energy represents potential for the generation of renewable, emission free, environmentally benign, and cost effective energy from tidal flows. A successful tidal energy demonstration project in Puget Sound, Washington may enable significant commercial development resulting in important benefits for the northwest region and the nation. This project promoted the United States Department of Energy�s Wind and Hydropower Technologies Program�s goals of advancing the commercial viability, cost-competitiveness, and market acceptance of marine hydrokinetic systems. The objective of the Puget Sound Tidal Energy Demonstration Project is to conduct in-water testing and evaluation of tidal energy technology as a first step toward potential construction of a commercial-scale tidal energy power plant. The specific goal of the project phase covered by this award was to conduct all activities necessary to complete engineering design and obtain construction approvals for a pilot demonstration plant in the Admiralty Inlet region of the Puget Sound. Public Utility District No. 1 of Snohomish County (The District) accomplished the objectives of this award through four tasks: Detailed Admiralty Inlet Site Studies, Plant Design and Construction Planning, Environmental and Regulatory Activities, and Management and Reporting. Pre-Installation studies completed under this award provided invaluable data used for site selection, environmental evaluation and permitting, plant design, and construction planning. However, these data gathering efforts are not only important to the Admiralty Inlet pilot project. Lessons learned, in particular environmental data gathering methods, can be applied to future tidal energy projects in the United States and other parts of the world. The District collaborated extensively with project stakeholders to complete the tasks for this award. This included Federal, State, and local government agencies, tribal governments, environmental groups, and others. All required permit and license applications were completed and submitted under this award, including a Final License Application for a pilot hydrokinetic license from the Federal Energy Regulatory Commission. The tasks described above have brought the project through all necessary requirements to construct a tidal pilot project in Admiralty Inlet with the exception of final permit and license approvals, and the selection of a general contractor to perform project construction.

Craig W. Collar

2012-11-16T23:59:59.000Z

157

A 24-h forecast of solar irradiance using artificial neural network: Application for performance prediction of a grid-connected PV plant at Trieste, Italy  

Science Conference Proceedings (OSTI)

Forecasting of solar irradiance is in general significant for planning the operations of power plants which convert renewable energies into electricity. In particular, the possibility to predict the solar irradiance (up to 24 h or even more) can became - with reference to the Grid Connected Photovoltaic Plants (GCPV) - fundamental in making power dispatching plans and - with reference to stand alone and hybrid systems - also a useful reference for improving the control algorithms of charge controllers. In this paper, a practical method for solar irradiance forecast using artificial neural network (ANN) is presented. The proposed Multilayer Perceptron MLP-model makes it possible to forecast the solar irradiance on a base of 24 h using the present values of the mean daily solar irradiance and air temperature. An experimental database of solar irradiance and air temperature data (from July 1st 2008 to May 23rd 2009 and from November 23rd 2009 to January 24th 2010) has been used. The database has been collected in Trieste (latitude 45 40'N, longitude 13 46'E), Italy. In order to check the generalization capability of the MLP-forecaster, a K-fold cross-validation was carried out. The results indicate that the proposed model performs well, while the correlation coefficient is in the range 98-99% for sunny days and 94-96% for cloudy days. As an application, the comparison between the forecasted one and the energy produced by the GCPV plant installed on the rooftop of the municipality of Trieste shows the goodness of the proposed model. (author)

Mellit, Adel [Department of Electronics, Faculty of Sciences and Technology, LAMEL, Jijel University, Ouled-aissa, P.O. Box 98, Jijel 18000 (Algeria); Pavan, Alessandro Massi [Department of Materials and Natural Resources, University of Trieste Via A. Valerio, 2 - 34127 Trieste (Italy)

2010-05-15T23:59:59.000Z

158

Marine and Hydrokinetic Energy Development Technical Support and General Environmental Studies Report on Outreach to Stakeholders for Fiscal Year 2009  

DOE Green Energy (OSTI)

Report on activities working with stakeholders in the emerging marine and hydrokinetic energy industry during FY09, for DOE EERE Office of Waterpower.

Copping, Andrea E.; Geerlofs, Simon H.

2010-01-22T23:59:59.000Z

159

The Contribution of Environmental Siting and Permitting Requirements to the Cost of Energy for Marine and Hydrokinetic Devices  

Science Conference Proceedings (OSTI)

Responsible deployment of marine and hydrokinetic (MHK) devices in estuaries, coastal areas, and major rivers requires that biological resources and ecosystems be protected through siting and permitting (consenting) processes. Scoping appropriate deployment locations, collecting pre-installation (baseline) and post-installation data add to the cost of developing MHK projects, and hence to the cost of energy. Under the direction of the U.S. Department of Energy, Pacific Northwest National Laboratory scientists have developed logic models that describe studies and processes for environmental siting and permitting. Each study and environmental permitting process has been assigned a cost derived from existing and proposed tidal, wave, and riverine MHK projects. Costs have been developed at the pilot scale, and for commercial arrays. This work is carried out under the U.S. Department of Energy reference model project, with the costs for engineering, deployment strategies, mooring and anchoring configurations, and maintenance operations, being developed by a consortium of Department of Energy national laboratories and universities. The goal of the reference model is to assist the MHK industry to become a cost-competitive contributor of renewable energy, by identifying those aspects of MHK projects that contribute significantly to the cost of energy, and directing research funding towards lowering those costs.

Copping, Andrea E.; Geerlofs, Simon H.

2011-05-09T23:59:59.000Z

160

THORs Power Method for Hydrokinetic Devices - Final Report  

DOE Green Energy (OSTI)

Ocean current energy represents a vast untapped source of renewable energy that exists on the outer continental shelf areas of the 5 major continents. Ocean currents are unidirectional in nature and are perpetuated by thermal and salinity sea gradients, as well as coriolis forces imparted from the earth's rotation. This report details THORs Power Method, a breakthrough power control method that can provide dramatic increases to the capacity factor over and above existing marine hydrokinetic (MHK) devices employed in the extraction of energy from ocean currents. THORs Power Method represents a constant speed, variable depth operational method that continually locates the ocean current turbine at a depth at which the rated power of the generator is routinely achieved. Variable depth operation is achieved by using various vertical force effectors, including ballast tanks for variable weight, a hydrodynamic wing for variable lift or down force and drag flaps for variable vehicle drag forces.

J. Turner Hunt; Joel Rumker

2012-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Simulating Collisions for Hydrokinetic Turbines. FY2010 Annual Progress Report.  

DOE Green Energy (OSTI)

Computational fluid dynamics (CFD) simulations of turbulent flow and particle motion are being conducted to evaluate the frequency and severity of collisions between marine and hydrokinetic (MHK) energy devices and debris or aquatic organisms. The work is part of a collaborative research project between Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories , funded by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Wind and Water Power Program. During FY2010 a reference design for an axial flow MHK turbine was used to develop a computational geometry for inclusion into a CFD model. Unsteady simulations of turbulent flow and the moving MHK turbine blades are being performed and the results used for simulation of particle trajectories. Preliminary results and plans for future work are presented.

Richmond, Marshall C.; Rakowski, Cynthia L.; Perkins, William A.; Serkowski, John A.

2010-11-30T23:59:59.000Z

162

NREL Developing Numerical Simulation Tool to Study Hydrokinetic...  

NLE Websites -- All DOE Office Websites (Extended Search)

M.; Li, Y.; Moriarty, P. (2012). "A Large-Eddy Simulation Study of Wake Propagation and Power Production in an Array of Tidal-Current Turbines." Accepted by Proceedings of the...

163

Energy Basics: Tidal Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

the cost per kilowatt-hour of tidal power is not competitive with conventional fossil fuel power. Contacts | Web Site Policies | U.S. Department of Energy | USA.gov Content Last...

164

Marine and Hydrokinetic Renewable Energy Devices, Potential Navigational Hazards and Mitigation Measures  

DOE Green Energy (OSTI)

On April 15, 2008, the Department of Energy (DOE) issued a Funding Opportunity Announcement for Advanced Water Power Projects which included a Topic Area for Marine and Hydrokinetic Renewable Energy Market Acceleration Projects. Within this Topic Area, DOE identified potential navigational impacts of marine and hydrokinetic renewable energy technologies and measures to prevent adverse impacts on navigation as a sub-topic area. DOE defines marine and hydrokinetic technologies as those capable of utilizing one or more of the following resource categories for energy generation: ocean waves; tides or ocean currents; free flowing water in rivers or streams; and energy generation from the differentials in ocean temperature. PCCI was awarded Cooperative Agreement DE-FC36-08GO18177 from the DOE to identify the potential navigational impacts and mitigation measures for marine hydrokinetic technologies. A technical report addressing our findings is available on this Science and Technology Information site under the Product Title, "Marine and Hydrokinetic Renewable Energy Technologies: Potential Navigational Impacts and Mitigation Measures". This product is a brochure, primarily for project developers, that summarizes important issues in that more comprehensive report, identifies locations where that report can be downloaded, and identifies points of contact for more information.

Cool, Richard, M.; Hudon, Thomas, J.; Basco, David, R.; Rondorf, Neil, E.

2009-12-01T23:59:59.000Z

165

A Comparison of Tidal Conversion Parameterizations for Tidal Models  

Science Conference Proceedings (OSTI)

The conversion of barotropic to baroclinic tidal energy in the global abyssal ocean is calculated using three different formulations. The calculations are done both “offline,” that is, using externally given tidal currents to estimate the energy ...

J. A. Mattias Green; Jonas Nycander

2013-01-01T23:59:59.000Z

166

Marine and Hydrokinetic Technology (MHK) Instrumentation, Measurement, and Computer Modeling Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Marine and Hydrokinetic Marine and Hydrokinetic Technology (MHK) Instrumentation, Measurement, and Computer Modeling Workshop W. Musial, M. Lawson, and S. Rooney National Renewable Energy Laboratory Technical Report NREL/TP-5000-57605 February 2013 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Marine and Hydrokinetic Technology (MHK) Instrumentation, Measurement, and Computer Modeling Workshop W. Musial, M. Lawson, and S. Rooney National Renewable Energy Laboratory Prepared under Task No. WA09.3406

167

Tidal Venuses: Triggering a Climate Catastrophe via Tidal Heating  

E-Print Network (OSTI)

Traditionally stellar radiation has been the only heat source considered capable of determining global climate on long timescales. Here we show that terrestrial exoplanets orbiting low-mass stars may be tidally heated at high enough levels to induce a runaway greenhouse for a long enough duration for all the hydrogen to escape. Without hydrogen, the planet no longer has water and cannot support life. We call these planets "Tidal Venuses," and the phenomenon a "tidal greenhouse." Tidal effects also circularize the orbit, which decreases tidal heating. Hence, some planets may form with large eccentricity, with its accompanying large tidal heating, and lose their water, but eventually settle into nearly circular orbits in the habitable zone (HZ). However, these planets are not habitable as past tidal heating desiccated them, and hence should not be ranked highly for detailed follow-up observations aimed at detecting biosignatures. We simulate the evolution of hypothetical planetary systems in a quasi-continuous ...

Barnes, Rory; Goldblatt, Colin; Meadows, Victoria S; Kasting, James F; Heller, Rene

2012-01-01T23:59:59.000Z

168

Marine and Hydrokinetic Renewable Energy Technologies: Potential Navigational Impacts and Mitigation Measures  

DOE Green Energy (OSTI)

On April 15, 2008, the Department of Energy (DOE) issued a Funding Opportunity Announcement for Advanced Water Power Projects which included a Topic Area for Marine and Hydrokinetic Renewable Energy Market Acceleration Projects. Within this Topic Area, DOE identified potential navigational impacts of marine and hydrokinetic renewable energy technologies and measures to prevent adverse impacts on navigation as a sub-topic area. DOE defines marine and hydrokinetic technologies as those capable of utilizing one or more of the following resource categories for energy generation: ocean waves; tides or ocean currents; free flowing water in rivers or streams; and energy generation from the differentials in ocean temperature. PCCI was awarded Cooperative Agreement DE-FC36-08GO18177 from the DOE to identify the potential navigational impacts and mitigation measures for marine hydrokinetic technologies, as summarized herein. The contract also required cooperation with the U.S. Coast Guard (USCG) and two recipients of awards (Pacific Energy Ventures and reVision) in a sub-topic area to develop a protocol to identify streamlined, best-siting practices. Over the period of this contract, PCCI and our sub-consultants, David Basco, Ph.D., and Neil Rondorf of Science Applications International Corporation, met with USCG headquarters personnel, with U.S. Army Corps of Engineers headquarters and regional personnel, with U.S. Navy regional personnel and other ocean users in order to develop an understanding of existing practices for the identification of navigational impacts that might occur during construction, operation, maintenance, and decommissioning. At these same meetings, “standard” and potential mitigation measures were discussed so that guidance could be prepared for project developers. Concurrently, PCCI reviewed navigation guidance published by the USCG and international community. This report summarizes the results of this effort, provides guidance in the form of a checklist for assessing the navigational impacts of potential marine and hydrokinetic projects, and provides guidance for improving the existing navigational guidance promulgated by the USCG in Navigation Vessel Inspection Circular 02 07. At the request of the USCG, our checklist and mitigation guidance was written in a generic nature so that it could be equally applied to offshore wind projects. PCCI teleconferenced on a monthly basis with DOE, Pacific Energy Ventures and reVision in order to share information and review work products. Although the focus of our effort was on marine and hydrokinetic technologies, as defined above, this effort drew upon earlier work by the USCG on offshore wind renewable energy installations. The guidance provided herein can be applied equally to marine and hydrokinetic technologies and to offshore wind, which are collectively referred to by the USCG as Renewable Energy Installations.

Cool, Richard, M.; Hudon, Thomas, J.; Basco, David, R.; Rondorf, Neil, E.

2009-12-10T23:59:59.000Z

169

Overland Tidal Power Generation Using Modular Tidal Prism  

SciTech Connect

Naturally occurring sites with sufficient kinetic energy suitable for tidal power generation with sustained currents > 1 to 2 m/s are relatively rare. Yet sites with greater than 3 to 4 m of tidal range are relatively common around the U.S. coastline. Tidal potential does exist along the shoreline but is mostly distributed, and requires an approach which allows trapping and collection to also be conducted in a distributed manner. In this paper we examine the feasibility of generating sustainable tidal power using multiple nearshore tidal energy collection units and present the Modular Tidal Prism (MTP) basin concept. The proposed approach utilizes available tidal potential by conversion into tidal kinetic energy through cyclic expansion and drainage from shallow modular manufactured overland tidal prisms. A preliminary design and configuration of the modular tidal prism basin including inlet channel configuration and basin dimensions was developed. The unique design was shown to sustain momentum in the penstocks during flooding as well as ebbing tidal cycles. The unstructured-grid finite volume coastal ocean model (FVCOM) was used to subject the proposed design to a number of sensitivity tests and to optimize the size, shape and configuration of MTP basin for peak power generation capacity. The results show that an artificial modular basin with a reasonable footprint (? 300 acres) has the potential to generate 10 to 20 kw average energy through the operation of a small turbine located near the basin outlet. The potential of generating a total of 500 kw to 1 MW of power through a 20 to 40 MTP basin tidal power farms distributed along the coastline of Puget Sound, Washington, is explored.

Khangaonkar, Tarang; Yang, Zhaoqing; Geerlofs, Simon H.; Copping, Andrea

2010-03-01T23:59:59.000Z

170

Tidal Energy Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tidal Energy Basics Tidal Energy Basics Tidal Energy Basics August 16, 2013 - 4:26pm Addthis Photo of the ocean rising along the beach. Some of the oldest ocean energy technologies use tidal power. All coastal areas experience two high tides and two low tides over a period of slightly more than 24 hours. For those tidal differences to be harnessed into electricity, the difference between high and low tides must be more than 16 feet (or at least 5 meters). However, there are only about 40 sites on Earth with tidal ranges of this magnitude. Currently, there are no tidal power plants in the United States, but conditions are good for tidal power generation in the Pacific Northwest and the Atlantic Northeast regions. Tidal Energy Technologies Tidal energy technologies include barrages or dams, tidal fences, and tidal

171

Ocean Tidal and Wave Energy  

Science Conference Proceedings (OSTI)

First published in 2000, the annual Renewable Energy Technical Assessment Guide (TAG-RE) provides a consistent basis for evaluating the economic feasibility of renewable generation technologies. This excerpt from the 2005 TAG-RE addresses ocean tidal and wave energy conversion technologies, which offer promise for converting the significant energy potential available in ocean tidal currents and waves to electricity in the future.

2005-12-19T23:59:59.000Z

172

NREL: Dynamic Maps, GIS Data, and Analysis Tools - Marine & Hydrokinetic  

NLE Websites -- All DOE Office Websites (Extended Search)

Marine & Hydrokinetic Data Marine & Hydrokinetic Data This project estimates the naturally available and technically recoverable U.S. wave energy resources, using a 51-month Wavewatch III hindcast database developed especially for this study by National Oceanographic and Atmospheric Administration's (NOAA's) National Centers for Environmental Prediction. For total resource estimation, wave power density in terms of kilowatts per meter is aggregated across a unit diameter circle. This approach is fully consistent with accepted global practice and includes the resource made available by the lateral transfer of wave energy along wave crests, which enables densities within a few kilometers of a linear array, even for fixed terminator devices. The total available energy resource along the U.S. continental shelf edge,

173

Ecological safety of tidal-power projects  

SciTech Connect

The operating regime of tidal power plants requires ecological monitoring of their associated water area.

Fedorov, M. P.; Shilin, M. B. [St. Petersburg State Polytechnic University (Russian Federation)

2010-07-15T23:59:59.000Z

174

Environmental Effects of Sediment Transport Alteration and Impacts on Protected Species: Edgartown Tidal Energy Project  

DOE Green Energy (OSTI)

The Islands of Martha�¢����s Vineyard and Nantucket are separated from the Massachusetts mainland by Vineyard and Nantucket Sounds; water between the two islands flows through Muskeget Channel. The towns of Edgartown (on Martha�¢����s Vineyard) and Nantucket recognize that they are vulnerable to power supply interruptions due to their position at the end of the power grid, and due to sea level rise and other consequences of climate change. The tidal energy flowing through Muskeget Channel has been identified by the Electric Power Research Institute as the strongest tidal resource in Massachusetts waters. The Town of Edgartown proposes to develop an initial 5 MW (nameplate) tidal energy project in Muskeget Channel. The project will consist of 14 tidal turbines with 13 providing electricity to Edgartown and one operated by the University of Massachusetts at Dartmouth for research and development. Each turbine will be 90 feet long and 50 feet high. The electricity will be brought to shore by a submarine cable buried 8 feet below the seabed surface which will landfall in Edgartown either on Chappaquiddack or at Katama. Muskeget Channel is located between Martha�¢����s Vineyard and Nantucket. Its depth ranges between 40 and 160 feet in the deepest portion. It has strong currents where water is transferred between Nantucket Sound and the Atlantic Ocean continental shelf to the south. This makes it a treacherous passage for navigation. Current users of the channel are commercial and recreational fishing, and cruising boats. The US Coast Guard has indicated that the largest vessel passing through the channel is a commercial scallop dragger with a draft of about 10 feet. The tidal resource in the channel has been measured by the University of Massachusetts-Dartmouth and the peak velocity flow is approximately 5 knots. The technology proposed is the helical Gorlov-type turbine positioned with a horizontal axis that is positively buoyant in the water column and held down by anchors. This is the same technology proposed by Ocean Renewable Power Company in the Western Passage and Cobscook Bay near Eastport Maine. The blades rotate in two directions capturing the tides energy both during flood and ebb tides. The turbines will be anchored to the bottom and suspended in the water column. Initial depth of the turbines is expected to be about 25 feet below the surface to avoid impacting navigation while also capturing the strongest currents. The Town of Edgartown was initially granted a Preliminary Permit by the Federal Energy Regulatory Commission (FERC) on March 1, 2008, and has recently received a second permit valid through August 2014. The Preliminary Permit gives Edgartown the exclusive right to apply for a power generation license for power generated from the hydrokinetic energy in the water flowing in this area. Edgartown filed a Draft Pilot License Application with FERC on February 1, 2010 and an Expanded Environmental Notification Form with the Massachusetts Environmental Policy Act (MEPA) Office at the same time. It expects to file a Final License Application in late 2013. Harris Miller Miller & Hanson (HMMH) of Burlington Massachusetts is acting as the Project Manager for the Town of Edgartown and collaborating with other partners of the project including the University of Massachusetts - Dartmouth's Marine Renewable Energy Center and the Massachusetts Clean Energy Center. HMMH was awarded a grant under the Department of Energy's Advanced Water Program to conduct marine science and hydrokinetic site-specific environmental studies for projects actively seeking a FERC License. HMMH, on behalf of the Town, is managing this comprehensive study of the marine environment in Muskeget Channel and potential impacts of the tidal project on indicator species and habitats. The University of Massachusetts School of Marine Science and Technology (SMAST) conducted oceanographic studies of tidal currents, tide level, benthic habit

Barrett, Stephen B.; Schlezinger, David, Ph.D; Cowles, Geoff, Ph.D; Hughes, Patricia; Samimy; Roland, I.; and Terray, E, Ph.D.

2012-12-29T23:59:59.000Z

175

Marine & Hydrokinetic Technologies (Fact Sheet), Wind And Water Power Program (WWPP)  

NLE Websites -- All DOE Office Websites (Extended Search)

Water Power Program Water Power Program supports the development of advanced water power devices that capture energy from waves, tides, ocean currents, rivers, streams, and ocean thermal gradients. The program works to promote the development and deployment of these new tech- nologies, known as marine and hydrokinetic technologies, to assess the potential extractable energy from rivers, estuaries, and coastal waters, and to help industry harness this renew- able, emissions-free resource to generate environmentally sustainable and cost-effective electricity. The program's research and development efforts fall under two categories: Technology Development and Market Acceleration. Technology Development The Water Power Program works with industry partners, universities, and the Department of Energy's national

176

Measurement of velocity deficit at the downstream of a 1:10 axial hydrokinetic turbine model  

DOE Green Energy (OSTI)

Wake recovery constrains the downstream spacing and density of turbines that can be deployed in turbine farms and limits the amount of energy that can be produced at a hydrokinetic energy site. This study investigates the wake recovery at the downstream of a 1:10 axial flow turbine model using a pulse-to-pulse coherent Acoustic Doppler Profiler (ADP). In addition, turbine inflow and outflow velocities were measured for calculating the thrust on the turbine. The result shows that the depth-averaged longitudinal velocity recovers to 97% of the inflow velocity at 35 turbine diameter (D) downstream of the turbine.

Gunawan, Budi [ORNL; Neary, Vincent S [ORNL; Hill, Craig [St. Anthony Falls Laboratory, 2 Third Avenue SE, Minneapolis, MN 55414; Chamorro, Leonardo [St. Anthony Falls Laboratory, 2 Third Avenue SE, Minneapolis, MN 55414

2012-01-01T23:59:59.000Z

177

Effects of Large Energetic Vortices on Axial-Flow Hydrokinetic Turbines  

DOE Green Energy (OSTI)

Large scale coherent motions around marine and hydrokinetic (MHK) machines can significantly increase the structural loading and affect the overall performance of the machines. Characterization of the approach turbulence and their impact on the instantaneous response of MHK devices is essential for improving their design and performance. This preliminary study investigates the effect of turbulence and dominant energetic coherent structures induced by a vertical cylinder on the structural load and energy production in a model MHK turbine. Results show that the power generated by the turbine is significantly reduced by the presence of the cylinder. This reduction depends on the distance from the cylinder and the level of turbulence around the rotor area.

Gunawan, Budi [ORNL; Neary, Vincent S [ORNL; Hill, Craig [St. Anthony Falls Laboratory, 2 Third Avenue SE, Minneapolis, MN 55414; Chamorro, Leonardo [St. Anthony Falls Laboratory, 2 Third Avenue SE, Minneapolis, MN 55414

2012-01-01T23:59:59.000Z

178

2011 Marine Hydrokinetic Device Modeling Workshop: Final Report; March 1, 2011  

SciTech Connect

This report summarizes the NREL Marine and Hydrokinetic Device Modeling Workshop. The objectives for the modeling workshop were to: (1) Review the designs of existing MHK device prototypes and discuss design and optimization procedures; (2) Assess the utility and limitations of modeling techniques and methods presently used for modeling MHK devices; (3) Assess the utility and limitations of modeling methods used in other areas, such as naval architecture and ocean engineering (e.g., oil & gas industry); and (4) Identify the necessary steps to link modeling with other important components that analyze MHK devices (e.g., tank testing, PTO design, mechanical design).

Li, Y.; Reed, M.; Smith, B.

2011-10-01T23:59:59.000Z

179

Earth Tidal Analysis | Open Energy Information  

Open Energy Info (EERE)

Earth Tidal Analysis Earth Tidal Analysis Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Earth Tidal Analysis Details Activities (6) Areas (4) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Enables estimation of in-situ reservoir elastic parameters. Stratigraphic/Structural: Hydrological: Enables estimation of in-situ reservoir hydraulic parameters. Thermal: Dictionary.png Earth Tidal Analysis: Earth tidal analysis is the measurement of the impact of tidal and barometric fluctuations on effective pore volume in a porous reservoir. Other definitions:Wikipedia Reegle

180

Tidal Electric | Open Energy Information  

Open Energy Info (EERE)

Electric Electric Jump to: navigation, search Name Tidal Electric Place London, Greater London, United Kingdom Zip SW19 8UY Product Developed a technology named 'tidal lagoons' to build tidal electric projects. Coordinates 51.506325°, -0.127144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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181

Tidal | OpenEI Community  

Open Energy Info (EERE)

Tidal Tidal Home Ocop's picture Submitted by Ocop(5) Member 18 April, 2013 - 13:41 MHK LCOE Reporting Guidance Draft Cost Current DOE LCOE numerical modeling Performance Tidal Wave To normalize competing claims of LCOE, DOE has developed-for its own use-a standardized cost and performance data reporting process to facilitate uniform calculation of LCOE from MHK device developers. This standardization framework is only the first version in what is anticipated to be an iterative process that involves industry and the broader DOE stakeholder community. Multiple files are attached here for review and comment.Upload Files: application/vnd.openxmlformats-officedocument.wordprocessingml.document icon device_performance_validation_data_request.docx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon

182

Tidal Current Predictions Using Rotary Empirical Orthogonal Functions  

Science Conference Proceedings (OSTI)

In the conventional point tidal analysis approach, a set of tidal harmonic constituents is derived from each time series of currents. These sets of tidal constituents are then used to predict the tidal currents. For a large database of current ...

Betty Ng

1993-12-01T23:59:59.000Z

183

International Standards Development for Marine and Hydrokinetic Renewable Energy - Final Report on Technical Status  

DOE Green Energy (OSTI)

This report summarizes the progress toward development of International Standards for Marine and Hydrokinetic Renewable Energy, as funded by the U.S. Department of Energy (DOE) under the International Electrotechnical Commission (IEC) Technical Committee 114. The project has three main objectives: 1. Provide funding to support participation of key U.S. industry technical experts in 6 (originally 4) international working groups and/or project teams (the primary standards-making committees) and to attend technical meetings to ensure greater U.S. involvement in the development of these standards. 2. Provide a report to DOE and industry stakeholders summarizing the IEC standards development process for marine and hydrokinetic renewable energy, new international standards and their justifications, and provide standards guidance to industry members. 3. Provide a semi-annual (web-based) newsletter to the marine renewable energy community. The newsletter will educate industry members and stakeholders about the processes, progress, and needs of the US efforts to support the international standards development effort. The newsletter is available at www.TC114.us

Rondorf, Neil E.; Busch, Jason; Kimball, Richard

2011-10-29T23:59:59.000Z

184

On Tidal Damping in Laplace's Global Ocean  

Science Conference Proceedings (OSTI)

Laplace's tidal equations are augmented by dissipation in a bottom boundary layer that is intermediate in character between those of Ekman and Stokes. Laplace's tidal equation for a global ocean remains second-order and self-adjoint, but the ...

John W. Miles

1986-02-01T23:59:59.000Z

185

Tidal Diffusivity: A Mechanism for Frontogenesis  

Science Conference Proceedings (OSTI)

It is hypothesized that tidal mixing may provide a “diffusivity” mechanism for frontogenesis. It stems from the fact that tidal diffusivity varies in the opposite sense from the water depth, so the vertically integrated diffusivity may exhibit a ...

Hsien-Wang Ou; Chang-Ming Dong; Dake Chen

2003-04-01T23:59:59.000Z

186

Tidal Mixing Signatures in the Indonesian Seas  

Science Conference Proceedings (OSTI)

Expressions of low-frequency tidal periods are found throughout the Indonesian Seas' temperature field, supporting the hypothesis that vertical mixing is enhanced within the Indonesian Seas by the tides. The thermal signatures of tidal mixing ...

Amy Ffield; Arnold L. Gordon

1996-09-01T23:59:59.000Z

187

Estimation of the Risks of Collision or Strike to Freshwater Aquatic Organisms Resulting from Operation of Instream Hydrokinetic Turbines  

DOE Green Energy (OSTI)

Hydrokinetic energy technologies have been proposed as renewable, environmentally preferable alternatives to fossil fuels for generation of electricity. Hydrokinetic technologies harness the energy of water in motion, either from waves, tides or from river currents. For energy capture from free-flowing rivers, arrays of rotating devices are most commonly proposed. The placement of hydrokinetic devices in large rivers is expected to increase the underwater structural complexity of river landscapes. Moore and Gregory (1988) found that structural complexity increased local fish populations because fish and other aquatic biota are attracted to structural complexity that provides microhabitats with steep flow velocity gradients (Liao 2007). However, hydrokinetic devices have mechanical parts, blades, wings or bars that move through the water column, posing a potential strike or collision risk to fish and other aquatic biota. Furthermore, in a setting with arrays of hydrokinetic turbines the cumulative effects of multiple encounters may increase the risk of strike. Submerged structures associated with a hydrokinetic (HK) project present a collision risk to aquatic organisms and diving birds (Cada et al. 2007). Collision is physical contact between a device or its pressure field and an organism that may result in an injury to that organism (Wilson et al. 2007). Collisions can occur between animals and fixed submerged structures, mooring equipment, horizontal or vertical axis turbine rotors, and structures that, by their individual design or in combination, may form traps. This report defines strike as a special case of collision where a moving part, such as a rotor blade of a HK turbine intercepts the path of an organism of interest, resulting in physical contact with the organism. The severity of a strike incidence may range from minor physical contact with no adverse effects to the organism to severe strike resulting in injury or death of the organism. Harmful effects to animal populations could occur directly (e.g., from strike mortality of individuals) or indirectly (e.g., if the loss of prey species to strike reduces food for predators). Although actively swimming or passively drifting animals may collide with any of the physical structures associated with hydrokinetic devices, turbine rotors are the most likely sources for risk of strike or significant collision (DOE 2009). It is also possible that during a close encounter with a HK device no physical contact will be made between the device and the organism, either because the animal avoids the device by successfully changing its direction of movement, or by successfully evading any moving parts of the device. Oak Ridge National Laboratory (ORNL) has been funded by the US Department of Energy (DOE) Waterpower Program to evaluate strike potential and consequences for Marine and Hydrokinetic (MHK) technologies in rivers and estuaries of the United States. We will use both predictive models and laboratory/field experiments to evaluate the likelihood and consequences of strike at HK projects in rivers. Efforts undertaken at ORNL address three objectives: (1) Assess strike risk for marine and freshwater organisms; (2) Develop experimental procedures to assess the risk and consequences of strike; and (3) Conduct strike studies in experimental flumes and field installations of hydrokinetic devices. During the first year of the study ORNL collected information from the Federal Energy Regulatory Commission (FERC) MHK database about geographical distribution of proposed hydrokinetic projects (what rivers or other types of systems), HK turbine design (horizontal axis, vertical axis, other), description of proposed axial turbine (number of blades, size of blades, rotation rate, mitigation measures), and number of units per project. Where site specific information was available, we compared the location of proposed projects rotors within the channel (e.g., along cutting edge bank, middle of thalweg, near bottom or in midwater) to the general locations of fish in the river (shoreline,

Schweizer, Peter E [ORNL; Cada, Glenn F [ORNL; Bevelhimer, Mark S [ORNL

2010-05-01T23:59:59.000Z

188

Estimation of the Risks of Collision or Strike to Freshwater Aquatic Organisms Resulting from Operation of Instream Hydrokinetic Turbines  

Science Conference Proceedings (OSTI)

Hydrokinetic energy technologies have been proposed as renewable, environmentally preferable alternatives to fossil fuels for generation of electricity. Hydrokinetic technologies harness the energy of water in motion, either from waves, tides or from river currents. For energy capture from free-flowing rivers, arrays of rotating devices are most commonly proposed. The placement of hydrokinetic devices in large rivers is expected to increase the underwater structural complexity of river landscapes. Moore and Gregory (1988) found that structural complexity increased local fish populations because fish and other aquatic biota are attracted to structural complexity that provides microhabitats with steep flow velocity gradients (Liao 2007). However, hydrokinetic devices have mechanical parts, blades, wings or bars that move through the water column, posing a potential strike or collision risk to fish and other aquatic biota. Furthermore, in a setting with arrays of hydrokinetic turbines the cumulative effects of multiple encounters may increase the risk of strike. Submerged structures associated with a hydrokinetic (HK) project present a collision risk to aquatic organisms and diving birds (Cada et al. 2007). Collision is physical contact between a device or its pressure field and an organism that may result in an injury to that organism (Wilson et al. 2007). Collisions can occur between animals and fixed submerged structures, mooring equipment, horizontal or vertical axis turbine rotors, and structures that, by their individual design or in combination, may form traps. This report defines strike as a special case of collision where a moving part, such as a rotor blade of a HK turbine intercepts the path of an organism of interest, resulting in physical contact with the organism. The severity of a strike incidence may range from minor physical contact with no adverse effects to the organism to severe strike resulting in injury or death of the organism. Harmful effects to animal populations could occur directly (e.g., from strike mortality of individuals) or indirectly (e.g., if the loss of prey species to strike reduces food for predators). Although actively swimming or passively drifting animals may collide with any of the physical structures associated with hydrokinetic devices, turbine rotors are the most likely sources for risk of strike or significant collision (DOE 2009). It is also possible that during a close encounter with a HK device no physical contact will be made between the device and the organism, either because the animal avoids the device by successfully changing its direction of movement, or by successfully evading any moving parts of the device. Oak Ridge National Laboratory (ORNL) has been funded by the US Department of Energy (DOE) Waterpower Program to evaluate strike potential and consequences for Marine and Hydrokinetic (MHK) technologies in rivers and estuaries of the United States. We will use both predictive models and laboratory/field experiments to evaluate the likelihood and consequences of strike at HK projects in rivers. Efforts undertaken at ORNL address three objectives: (1) Assess strike risk for marine and freshwater organisms; (2) Develop experimental procedures to assess the risk and consequences of strike; and (3) Conduct strike studies in experimental flumes and field installations of hydrokinetic devices. During the first year of the study ORNL collected information from the Federal Energy Regulatory Commission (FERC) MHK database about geographical distribution of proposed hydrokinetic projects (what rivers or other types of systems), HK turbine design (horizontal axis, vertical axis, other), description of proposed axial turbine (number of blades, size of blades, rotation rate, mitigation measures), and number of units per project. Where site specific information was available, we compared the location of proposed projects rotors within the channel (e.g., along cutting edge bank, middle of thalweg, near bottom or in midwater) to the general locations of fish in the river (shoreline,

Schweizer, Peter E [ORNL; Cada, Glenn F [ORNL; Bevelhimer, Mark S [ORNL

2010-05-01T23:59:59.000Z

189

Hydrodynamic Optimization Method and Design Code for Stall-Regulated Hydrokinetic Turbine Rotors  

NLE Websites -- All DOE Office Websites (Extended Search)

5021 5021 August 2009 Hydrodynamic Optimization Method and Design Code for Stall-Regulated Hydrokinetic Turbine Rotors D. Sale University of Tennessee J. Jonkman and W. Musial National Renewable Energy Laboratory Presented at the ASME 28 th International Conference on Ocean, Offshore, and Arctic Engineering Honolulu, Hawaii May 31-June 5, 2009 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (ASE), a contractor of the US Government under Contract No. DE-AC36-08-GO28308. Accordingly, the US Government and ASE retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

190

Hydrodynamic Optimization Method and Design Code for Stall-Regulated Hydrokinetic Turbine Rotors  

DOE Green Energy (OSTI)

This report describes the adaptation of a wind turbine performance code for use in the development of a general use design code and optimization method for stall-regulated horizontal-axis hydrokinetic turbine rotors. This rotor optimization code couples a modern genetic algorithm and blade-element momentum performance code in a user-friendly graphical user interface (GUI) that allows for rapid and intuitive design of optimal stall-regulated rotors. This optimization method calculates the optimal chord, twist, and hydrofoil distributions which maximize the hydrodynamic efficiency and ensure that the rotor produces an ideal power curve and avoids cavitation. Optimizing a rotor for maximum efficiency does not necessarily create a turbine with the lowest cost of energy, but maximizing the efficiency is an excellent criterion to use as a first pass in the design process. To test the capabilities of this optimization method, two conceptual rotors were designed which successfully met the design objectives.

Sale, D.; Jonkman, J.; Musial, W.

2009-08-01T23:59:59.000Z

191

Remote Monitoring of the Structural Health of Hydrokinetic Composite Turbine Blades  

Science Conference Proceedings (OSTI)

A health monitoring approach is investigated for hydrokinetic turbine blade applications. In-service monitoring is critical due to the difficult environment for blade inspection and the cost of inspection downtime. Composite blade designs have advantages that include long life in marine environments and great control over mechanical properties. Experimental strain characteristics are determined for static loads and free-vibration loads. These experiments are designed to simulate the dynamic characteristics of hydrokinetic turbine blades. Carbon/epoxy symmetric composite laminates are manufactured using an autoclave process. Four-layer composite beams, eight-layer composite beams, and two-dimensional eight-layer composite blades are instrumented for strain. Experimental results for strain measurements from electrical resistance gages are validated with theoretical characteristics obtained from in-house finite-element analysis for all sample cases. These preliminary tests on the composite samples show good correlation between experimental and finite-element strain results. A health monitoring system is proposed in which damage to a composite structure, e.g. delamination and fiber breakage, causes changes in the strain signature behavior. The system is based on embedded strain sensors and embedded motes in which strain information is demodulated for wireless transmission. In-service monitoring is critical due to the difficult environment for blade inspection and the cost of inspection downtime. Composite blade designs provide a medium for embedding sensors into the blades for in-situ health monitoring. The major challenge with in-situ health monitoring is transmission of sensor signals from the remote rotating reference frame of the blade to the system monitoring station. In the presented work, a novel system for relaying in-situ blade health measurements in hydrokinetic systems is described and demonstrated. An ultrasonic communication system is used to transmit sensor data underwater from the rotating frame of the blade to a fixed relay station. Data are then broadcast via radio waves to a remote monitoring station. Results indicate that the assembled system can transmit simulated sensor data with an accuracy of ±5% at a maximum sampling rate of 500 samples/sec. A power investigation of the transmitter within the blade shows that continuous max-sampling operation is only possible for short durations (~days), and is limited due to the capacity of the battery power source. However, intermittent sampling, with long periods between samples, allows for the system to last for very long durations (~years). Finally, because the data transmission system can operate at a high sampling rate for short durations or at a lower sampling rate/higher duty cycle for long durations, it is well-suited for short-term prototype and environmental testing, as well as long-term commercially-deployed hydrokinetic machines.

J.L. Rovey K. Chandrashekhara

2012-09-21T23:59:59.000Z

192

Environmental Effects of Hydrokinetic Turbines on Fish: Desktop and Laboratory Flume Studies  

DOE Green Energy (OSTI)

Flume studies exposed fish to two hydrokinetic turbine designs to determine injury and survival rates and to assess behavioral responses. Also, a theoretical model developed for predicting strike probability and mortality of fish passing through conventional hydro turbines was adapted for use with hydrokinetic turbines and applied to the two designs evaluated during flume studies. The flume tests were conducted with the Lucid spherical turbine (LST), a Darrieus-type (cross flow) turbine, and the Welka UPG, an axial flow propeller turbine. Survival rates for rainbow trout tested with the LST were greater than 98% for both size groups and approach velocities evaluated. Turbine passage survival rates for rainbow trout and largemouth bass tested with the Welka UPG were greater than 99% for both size groups and velocities evaluated. Injury rates of turbine-exposed fish were low with both turbines and generally comparable to control fish. Video observations of the LST demonstrated active avoidance of turbine passage by a large proportion fish despite being released about 25 cm upstream of the turbine blade sweep. Video observations from behavior trials indicated few if any fish pass through the turbines when released farther upstream. The theoretical predictions for the LST indicated that strike mortality would begin to occur at an ambient current velocity of about 1.7 m/s for fish with lengths greater than the thickness of the leading edge of the blades. As current velocities increase above 1.7 m/s, survival was predicted to decrease for fish passing through the LST, but generally remained high (greater than 90%) for fish less than 200 mm in length. Strike mortality was not predicted to occur duri

Jacobson, Paul T. [Electric Power Research Institute; Amaral, Stephen V. [Alden Research Laboratory; Castro-Santos, Theodore [U.S. Geological Survey; Giza, Dan [Alden Research Laboratory; Haro, Alexander J. [U.S. Geological Survey; Hecker, George [Alden Research Laboratory; McMahon, Brian [Alden Research Laboratory; Perkins, Norman [Alden Research Laboratory; Pioppi, Nick [Alden Research Laboratory

2012-12-31T23:59:59.000Z

193

Tethys: The Marine and Hydrokinetic Technology Environmental Impacts Knowledge Management System -- Requirements Specification -- Version 1.0  

SciTech Connect

The marine and hydrokinetic (MHK) environmental impacts knowledge management system (KMS), dubbed Tethys after the mythical Greek goddess of the seas, is being developed for the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy Wind and Hydropower Technologies Program (WHTP) by Pacific Northwest National Laboratory (PNNL). This requirements specification establishes the essential capabilities required of Tethys and clarifies for WHTP and the Tethys development team the results that must be achieved by the system.

Butner, R. Scott; Snowden-Swan, Lesley J.; Ellis, Peter C.

2010-11-09T23:59:59.000Z

194

Hydropower, Wave and Tidal Technologies Available for ...  

Site Map; Printable Version; Share this resource. Send a link to Hydropower, Wave and Tidal Technologies Available for Licensing - Energy Innovation Portalto someone ...

195

Tidal Transport in the Florida Current and Its Relationship to Tidal Heights and Cable Voltages  

Science Conference Proceedings (OSTI)

A linear relationship between tidal height (sea level of tidal frequencies) and tidal transport near 27°N in the Straits of Florida is confirmed. Transport estimates from this relationship for the O1 and M2 constituents are compared with those ...

Dennis A. Mayer; Jimmy C. Larsen

1986-12-01T23:59:59.000Z

196

PowerPoint Presentation  

NLE Websites -- All DOE Office Websites (Extended Search)

and Tidal Stream Energy Conversion Devices * Ocean Energy - HydroKinetic Energy - Marine Energy Terminology 4 Terminology: HydroKinetic * Hydro Greek word for water (hydor) *...

197

Siting Study Framework and Survey Methodology for Marine and Hydrokinetic Energy Project in Offshore Southeast Florida  

SciTech Connect

Dehlsen Associates, LLC was awarded a grant by the United States Department of Energy (DOE) Golden Field Office for a project titled 'Siting Study Framework and Survey Methodology for Marine and Hydrokinetic Energy Project in Offshore Southeast Florida,' corresponding to DOE Grant Award Number DE-EE0002655 resulting from DOE funding Opportunity Announcement Number DE-FOA-0000069 for Topic Area 2, and it is referred to herein as 'the project.' The purpose of the project was to enhance the certainty of the survey requirements and regulatory review processes for the purpose of reducing the time, efforts, and costs associated with initial siting efforts of marine and hydrokinetic energy conversion facilities that may be proposed in the Atlantic Ocean offshore Southeast Florida. To secure early input from agencies, protocols were developed for collecting baseline geophysical information and benthic habitat data that can be used by project developers and regulators to make decisions early in the process of determining project location (i.e., the siting process) that avoid or minimize adverse impacts to sensitive marine benthic habitat. It is presumed that such an approach will help facilitate the licensing process for hydrokinetic and other ocean renewable energy projects within the study area and will assist in clarifying the baseline environmental data requirements described in the U.S. Department of the Interior Bureau of Ocean Energy Management, Regulation and Enforcement (formerly Minerals Management Service) final regulations on offshore renewable energy (30 Code of Federal Regulations 285, published April 29, 2009). Because projects generally seek to avoid or minimize impacts to sensitive marine habitats, it was not the intent of this project to investigate areas that did not appear suitable for the siting of ocean renewable energy projects. Rather, a two-tiered approach was designed with the first step consisting of gaining overall insight about seabed conditions offshore southeastern Florida by conducting a geophysical survey of pre-selected areas with subsequent post-processing and expert data interpretation by geophysicists and experienced marine biologists knowledgeable about the general project area. The second step sought to validate the benthic habitat types interpreted from the geophysical data by conducting benthic video and photographic field surveys of selected habitat types. The goal of this step was to determine the degree of correlation between the habitat types interpreted from the geophysical data and what actually exists on the seafloor based on the benthic video survey logs. This step included spot-checking selected habitat types rather than comprehensive evaluation of the entire area covered by the geophysical survey. It is important to note that non-invasive survey methods were used as part of this study and no devices of any kind were either temporarily or permanently attached to the seabed as part of the work conducted under this project.

Vinick, Charles; Riccobono, Antonino, MS; Messing, Charles G., Ph.D.; Walker, Brian K., Ph.D.; Reed, John K., Ph.D.

2012-02-28T23:59:59.000Z

198

Spectral Scaling in a Tidal Boundary Layer  

Science Conference Proceedings (OSTI)

The simple scaling of a tidal bottom boundary layer by the shear velocity, u*, and the wall to the wall describes well the mean Bow field. To test the full extent of this scaling measurements were made of the turbulence spectra in a natural tidal ...

Thomas F. Gross; Arthur R. M. Nowell

1985-05-01T23:59:59.000Z

199

Environmentally Benign and Permanent Modifications to Prevent Biofouling on Marine and Hydrokinetic Devices  

DOE Green Energy (OSTI)

Semprus Biosciences is developing environmentally benign and permanent modifications to prevent biofouling on Marine and Hydrokinetic (MHK) devices. Biofouling, including growth on external surfaces by bacteria, algae, barnacles, mussels, and other marine organisms, accumulate quickly on MHK devices, causing mechanical wear and changes in performance. Biofouling on crucial components of hydrokinetic devices, such as rotors, generators, and turbines, imposes substantial mass and hydrodynamic loading with associated efficiency loss and maintenance costs. Most antifouling coatings leach toxic ingredients, such as copper and tributyltin, through an eroding process, but increasingly stringent regulation of biocides has led to interest in the development of non-biocidal technologies to control fouling. Semprus Biosciences research team is developing modifications to prevent fouling from a broad spectrum of organisms on devices of all shapes, sizes, and materials for the life of the product. The research team designed and developed betaine-based polymers as novel underwater coatings to resist the attachment of marine organisms. Different betaine-based monomers and polymers were synthesized and incorporated within various coating formulations. The formulations and application methods were developed on aluminum panels with required adhesion strength and mechanical properties. The coating polymers were chemically stable under UV, hydrolytic and oxidative environments. The sulfobetaine formulations are applicable as nonleaching and stable underwater coatings. For the first time, coating formulations modified with highly packed sulfobetaine polymers were prepared and demonstrated resistance to a broad spectrum of marine organisms. Assays for comparing nonfouling performance were developed to evaluate protein adsorption and bacteria attachment. Barnacle settlement and removal were evaluated and a 60-day field test was performed. Silicone substrates including a commercial fouling release coating were used for comparison. Compared with the unmodified silicone substrates, the sulfobetaine-modified formulations were able to exhibit a 98% reduction in fibrinogen adsorption, 97.0% (E. coli), 99.6% (S. aureus), and 99.5% (C. lytica) reduction in bacteria attachment, and 100% reduction in barnacles cyprid attachment. In addition to the significant improvement in fouling resistance of various organisms, the 60-day field test also showed an evident efficacy from visual assessment, foul rating, and fouling removal test. The research confirmed that the novel antifouling mechanism of betaine polymers provides a new avenue for marine coating development. The developed coatings out-performed currently used nontoxic underwater coatings in a broad spectrum of fouling resistance. By further developing formulations and processing methods for specific devices, the technology is ready for the next stage of development with demonstration in MHK systems.

Zheng Zhang

2012-04-19T23:59:59.000Z

200

Tidal Heating of Extra-Solar Planets  

E-Print Network (OSTI)

Extra-solar planets close to their host stars have likely undergone significant tidal evolution since the time of their formation. Tides probably dominated their orbital evolution once the dust and gas had cleared away, and as the orbits evolved there was substantial tidal heating within the planets. The tidal heating history of each planet may have contributed significantly to the thermal budget that governed the planet's physical properties, including its radius, which in many cases may be measured by observing transit events. Typically, tidal heating increases as a planet moves inward toward its star and then decreases as its orbit circularizes. Here we compute the plausible heating histories for several planets with measured radii, using the same tidal parameters for the star and planet that had been shown to reconcile the eccentricity distribution of close-in planets with other extra-solar planets. Several planets are discussed, including for example HD 209458 b, which may have undergone substantial tida...

Jackson, Brian; Barnes, Rory

2008-01-01T23:59:59.000Z

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201

US Department of Energy National Lab Activities in Marine Hydrokinetics: Machine Performance Testing  

Science Conference Proceedings (OSTI)

Marine and hydrokinetic (MHK) technology performance testing in the laboratory and field supports the US Department of Energy s MHK program goals to advance the technology readiness levels of MHK machines, to ensure environmentally responsible designs, to identify key cost drivers, and to reduce the cost of energy of MHK technologies. Laboratory testing results from scaled model machine testing at the University of Minnesota s St. Anthony Falls Laboratory (SAFL) main channel flume are presented, including simultaneous machine power and inflow measurements for a 1:10 scale three-bladed axial flow turbine used to assess machine performance in turbulent flows, and detailed measurements of inflow and wake flow velocity and turbulence, including the assessment of the effects of large energetic organized vortex shedding on machine performance and wake turbulence downstream. Scaled laboratory testing provides accurate data sets for near- and far-field hydrodynamic models, and useful information on technology and environmental readiness levels before full-scale testing and demonstration in open water. This study validated turbine performance for a technology in order to advance its technology readiness level. Synchronized ADV measurements to calculate spatio-temporal characteristics of turbulence supported model development of the inflow turbulence model, Hydro-TurbSim, developed by the National Renewable Energy Laboratory (NREL) to evaluate unsteady loading on MHK machines. Wake flow measurements supported model development of the far-field model, SNL-EFDC, developed by Sandia National Laboratory (SNL) to optimize spacing for MHK machine arrays.

Neary, Vincent S [ORNL; Chamorro, Leonardo [St. Anthony Falls Laboratory, 2 Third Avenue SE, Minneapolis, MN 55414; Hill, Craig [St. Anthony Falls Laboratory, 2 Third Avenue SE, Minneapolis, MN 55414; Gunawan, Budi [Oak Ridge National Laboratory (ORNL); Sotiropoulos, Fotis [University of Minnesota

2012-01-01T23:59:59.000Z

202

Attraction to and Avoidance of instream Hydrokinetic Turbines by Freshwater Aquatic Organisms  

Science Conference Proceedings (OSTI)

The development of hydrokinetic (HK) energy projects is under consideration at over 150 sites in large rivers in the United States, including the Mississippi, Ohio, Tennessee, and Atchafalaya Rivers. These waterbodies support numerous fish species that might interact with the HK projects in a variety of ways, e.g., by attraction to or avoidance of project structures. Although many fish species inhabit these rivers (about 172 species in the Mississippi River alone), not all of them will encounter the HK projects. Some species prefer low-velocity, backwater habitats rather than the high-velocity, main channel areas that would be the best sites for HK. Other, riverbank-oriented species are weak swimmers or too small to inhabit the main channel for significant periods of time. Some larger, main channel fish species are not known to be attracted to structures. Based on a consideration of habitat preferences, size/swim speed, and behavior, fish species that are most likely to be attracted to HK structures in the main channel include carps, suckers, catfish, white bass, striped bass, smallmouth bass, spotted bass, and sauger. Proper siting of the project in order to avoid sensitive fish populations, backwater and fish nursery habitat areas, and fish migration corridors will likely minimize concerns about fish attraction to or avoidance of HK structures.

Cada, Glenn F [ORNL; Bevelhimer, Mark S [ORNL

2011-05-01T23:59:59.000Z

203

Marine and Hydrokinetic Technology (MHK) Instrumentation, Measurement, and Computer Modeling Workshop  

DOE Green Energy (OSTI)

The Marine and Hydrokinetic Technology (MHK) Instrumentation, Measurement, and Computer Modeling Workshop was hosted by the National Renewable Energy Laboratory (NREL) in Broomfield, Colorado, July 9-10, 2012. The workshop brought together over 60 experts in marine energy technologies to disseminate technical information to the marine energy community and collect information to help identify ways in which the development of a commercially viable marine energy industry can be accelerated. The workshop was comprised of plenary sessions that reviewed the state of the marine energy industry and technical sessions that covered specific topics of relevance. Each session consisted of presentations, followed by facilitated discussions. During the facilitated discussions, the session chairs posed several prepared questions to the presenters and audience to encourage communication and the exchange of ideas between technical experts. Following the workshop, attendees were asked to provide written feedback on their takeaways and their best ideas on how to accelerate the pace of marine energy technology development. The first four sections of this document give a general overview of the workshop format, provide presentation abstracts and discussion session notes, and list responses to the post-workshop questions. The final section presents key findings and conclusions from the workshop that suggest how the U.S. Department of Energy and national laboratory resources can be utilized to most effectively assist the marine energy industry.

Musial, W.; Lawson, M.; Rooney, S.

2013-02-01T23:59:59.000Z

204

Tidal Heating of Extra-Solar Planets  

E-Print Network (OSTI)

Extra-solar planets close to their host stars have likely undergone significant tidal evolution since the time of their formation. Tides probably dominated their orbital evolution once the dust and gas had cleared away, and as the orbits evolved there was substantial tidal heating within the planets. The tidal heating history of each planet may have contributed significantly to the thermal budget that governed the planet's physical properties, including its radius, which in many cases may be measured by observing transit events. Typically, tidal heating increases as a planet moves inward toward its star and then decreases as its orbit circularizes. Here we compute the plausible heating histories for several planets with measured radii, using the same tidal parameters for the star and planet that had been shown to reconcile the eccentricity distribution of close-in planets with other extra-solar planets. Several planets are discussed, including for example HD 209458 b, which may have undergone substantial tidal heating during the past billion years, perhaps enough to explain its large measured radius. Our models also show that GJ 876 d may have experienced tremendous heating and is probably not a solid, rocky planet. Theoretical models should include the role of tidal heating, which is large, but time-varying.

Brian Jackson; Richard Greenberg; Rory Barnes

2008-02-29T23:59:59.000Z

205

Tidal Conversion at a Submarine Ridge  

Science Conference Proceedings (OSTI)

The radiative flux of internal wave energy (the “tidal conversion”) powered by the oscillating flow of a uniformly stratified fluid over a two-dimensional submarine ridge is computed using an integral-equation method. The problem is characterized ...

François Pétrélis; Stefan Llewellyn Smith; W. R. Young

2006-06-01T23:59:59.000Z

206

Preliminary Screening Analysis for the Environmental Risk Evaluation System: Task 2.1.1: Evaluating Effects of Stressors – Fiscal Year 2010 Progress Report: Environmental Effects of Marine and Hydrokinetic Energy  

Science Conference Proceedings (OSTI)

Possible environmental effects of marine and hydrokinetic (MHK) energy development are not well understood, and yet regulatory agencies are required to make decisions in spite of substantial uncertainty about environmental impacts and their long-term effects. An understanding of risk associated with likely interactions between MHK installations and aquatic receptors, including animals, habitats, and ecosystems, can help reduce the level of uncertainty and focus regulatory actions and scientific studies on interactions of most concern. As a first step in developing the Pacific Northwest National Laboratory (PNNL) Environmental Risk Evaluation System (ERES), PNNL scientists conducted a preliminary risk screening analysis on three initial MHK cases - a tidal project in Puget Sound using Open Hydro turbines, a wave project off the coast of Oregon using Ocean Power Technologies point attenuator buoys, and a riverine current project in the Mississippi River using Free Flow turbines. Through an iterative process, the screening analysis revealed that top-tier stressors in all three cases were the effects of the dynamic physical presence of the device (e.g., strike), accidents, and effects of the static physical presence of the device (e.g., habitat alteration). Receptor interactions with these stressors at the four highest tiers of risk were dominated by marine mammals (cetaceans and pinnipeds) and birds (diving and non-diving); only the riverine case (Free Flow) included different receptors in the third tier (fish) and the fourth tier (benthic invertebrates). Although this screening analysis provides a preliminary analysis of vulnerability of environmental receptors to stressors associated with MHK installations, probability analysis, especially of risk associated with chemical toxicity and accidents such as oil spills or lost gear, will be necessary to further understand high-priority risks. Subject matter expert review of this process and results is required and is planned for the first quarter of FY11. Once expert review is finalized, the screening analysis phase of ERES will be complete.

Anderson, Richard M.; Copping, Andrea E.; Van Cleve, Frances B.

2010-11-15T23:59:59.000Z

207

TIDAL INTERACTIONS IN MERGING WHITE DWARF BINARIES  

SciTech Connect

The recently discovered system J0651 is the tightest known detached white dwarf (WD) binary. Since it has not yet initiated Roche-lobe overflow, it provides a relatively clean environment for testing our understanding of tidal interactions. I investigate the tidal heating of each WD, parameterized in terms of its tidal Q parameter. Assuming that the heating can be radiated efficiently, the current luminosities are consistent with Q {sub 1} {approx} 7 x 10{sup 10} and Q {sub 2} {approx} 2 x 10{sup 7}, for the He and C/O WDs, respectively. Conversely, if the observed luminosities are merely from the cooling of the WDs, these estimated values of Q represent the upper limits. A large Q {sub 1} for the He WD means its spin velocity will be slower than that expected if it was tidally locked, which, since the binary is eclipsing, may be measurable via the Rossiter-McLaughlin effect. After one year, gravitational wave emission shifts the time of eclipses by 5.5 s, but tidal interactions cause the orbit to shrink more rapidly, changing the time by up to an additional 0.3 s after a year. Future eclipse timing measurements may therefore infer the degree of tidal locking.

Piro, Anthony L., E-mail: piro@caltech.edu [Theoretical Astrophysics, California Institute of Technology, 1200 East California Boulevard, M/C 350-17, Pasadena, CA 91125 (United States)

2011-10-20T23:59:59.000Z

208

Half Moon Cove Tidal Project. Feasibility report  

DOE Green Energy (OSTI)

The proposed Half Moon Cove Tidal Power Project would be located in a small cove in the northern part of Cobscook Bay in the vicinity of Eastport, Maine. The project would be the first tidal electric power generating plant in the United States of America. The basin impounded by the barrier when full will approximate 1.2 square miles. The average tidal range at Eastport is 18.2 feet. The maximum spring tidal range will be 26.2 feet and the neap tidal range 12.8 feet. The project will be of the single pool-type single effect in which generation takes place on the ebb tide only. Utilizing an average mean tidal range of 18.2 feet the mode of operation enables generation for approximately ten and one-half (10-1/2) hours per day or slightly in excess of five (5) hours per tide. The installed capacity will be 12 MW utilizing 2 to 6 MW units. An axial flow, or Bulb type of turbine was selected for this study.

Not Available

1980-11-01T23:59:59.000Z

209

Tidal Energy Limited | Open Energy Information  

Open Energy Info (EERE)

Tidal Energy Limited (TEL) Tidal Energy Limited (TEL) Place Cardiff, Wales, United Kingdom Zip CF23 8RS Product Tidal stream device developer. Coordinates 51.48125°, -3.180734° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.48125,"lon":-3.180734,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

210

Tidal Energy Test Platform | Open Energy Information  

Open Energy Info (EERE)

Test Platform Test Platform Jump to: navigation, search Basic Specifications Facility Name Tidal Energy Test Platform Overseeing Organization University of New Hampshire Hydrodynamics Hydrodynamic Testing Facility Type Offshore Berth Water Type Saltwater Cost(per day) Contact POC Special Physical Features The Tidal Testing Platform is presently a 10.7m long x 3m wide pontoon barge with a derrick and an opening for deploying tidal energy devices. The platform is intentionally configured to be adaptive for the changing needs of different devices. Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume None Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None

211

Assssment and Mapping of the Riverine Hydrokinetic Resource in the Continental United States  

SciTech Connect

The U.S. Department of Energy (DOE) funded the Electric Power Research Institute and its collaborative partners, University of Alaska ? Anchorage, University of Alaska ? Fairbanks, and the National Renewable Energy Laboratory, to provide an assessment of the riverine hydrokinetic resource in the continental United States. The assessment benefited from input obtained during two workshops attended by individuals with relevant expertise and from a National Research Council panel commissioned by DOE to provide guidance to this and other concurrent, DOE-funded assessments of water based renewable energy. These sources of expertise provided valuable advice regarding data sources and assessment methodology. The assessment of the hydrokinetic resource in the 48 contiguous states is derived from spatially-explicit data contained in NHDPlus ?a GIS-based database containing river segment-specific information on discharge characteristics and channel slope. 71,398 river segments with mean annual flow greater than 1,000 cubic feet per second (cfs) mean discharge were included in the assessment. Segments with discharge less than 1,000 cfs were dropped from the assessment, as were river segments with hydroelectric dams. The results for the theoretical and technical resource in the 48 contiguous states were found to be relatively insensitive to the cutoff chosen. Raising the cutoff to 1,500 cfs had no effect on estimate of the technically recoverable resource, and the theoretical resource was reduced by 5.3%. The segment-specific theoretical resource was estimated from these data using the standard hydrological engineering equation that relates theoretical hydraulic power (Pth, Watts) to discharge (Q, m3 s-1) and hydraulic head or change in elevation (??, m) over the length of the segment, where ? is the specific weight of water (9800 N m-3): ??? = ? ? ?? For Alaska, which is not encompassed by NPDPlus, hydraulic head and discharge data were manually obtained from Idaho National Laboratory?s Virtual Hydropower Prospector, Google Earth, and U.S. Geological Survey gages. Data were manually obtained for the eleven largest rivers with average flow rates greater than 10,000 cfs and the resulting estimate of the theoretical resource was expanded to include rivers with discharge between 1,000 cfs and 10,000 cfs based upon the contribution of rivers in the latter flow class to the total estimate in the contiguous 48 states. Segment-specific theoretical resource was aggregated by major hydrologic region in the contiguous, lower 48 states and totaled 1,146 TWh/yr. The aggregate estimate of the Alaska theoretical resource is 235 TWh/yr, yielding a total theoretical resource estimate of 1,381 TWh/yr for the continental US. The technically recoverable resource in the contiguous 48 states was estimated by applying a recovery factor to the segment-specific theoretical resource estimates. The recovery factor scales the theoretical resource for a given segment to take into account assumptions such as minimum required water velocity and depth during low flow conditions, maximum device packing density, device efficiency, and flow statistics (e.g., the 5 percentile flow relative to the average flow rate). The recovery factor also takes account of ?back effects? ? feedback effects of turbine presence on hydraulic head and velocity. The recovery factor was determined over a range of flow rates and slopes using the hydraulic model, HEC-RAS. In the hydraulic modeling, presence of turbines was accounted for by adjusting the Manning coefficient. This analysis, which included 32 scenarios, led to an empirical function relating recovery factor to slope and discharge. Sixty-nine percent of NHDPlus segments included in the theoretical resource estimate for the contiguous 48 states had an estimated recovery factor of zero. For Alaska, data on river slope was not readily available; hence, the recovery factor was estimated based on the flow rate alone. Segment-specific estimates of the theoretical resource were multiplied by the corresponding recovery factor to estimate

Jacobson, Paul T. [Electric Power Research Institute; Ravens, Thomas M. [University of Alaska Anchorage; Cunningham, Keith W. [University of Alaska Fairbanks; Scott, George [National Renewable Energy Laboratory

2012-12-14T23:59:59.000Z

212

All Eyes on Eastport: Tidal Energy Project Brings Change, Opportunity...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tidal Energy Project Brings Change, Opportunity to Local Community All Eyes on Eastport: Tidal Energy Project Brings Change, Opportunity to Local Community July 24, 2012 - 2:40pm...

213

A Geostrophic Adjustment Model of a Tidal Mixing Front  

Science Conference Proceedings (OSTI)

This paper presents a model of a tidal mixing front as occurring between well mixed and (seasonally) stratified water in tidally energetic areas in continental shelf seas. The model examines the geostrophic adjustment of a stratified two-layer ...

G. J. F. van Heijst

1985-09-01T23:59:59.000Z

214

Marine Hydrokinetic Turbine Power-Take-Off Design for Optimal Performance and Low Impact on Cost-of-Energy: Preprint  

SciTech Connect

Marine hydrokinetic devices are becoming a popular method for generating marine renewable energy worldwide. These devices generate electricity by converting the kinetic energy of moving water, wave motion or currents, into electrical energy through the use of a power-take-off (PTO) system. Most PTO systems incorporate a mechanical or hydraulic drivetrain, power generator, and electric control/conditioning system to deliver the generated electric power to the grid at the required state. Like wind turbine applications, the PTO system must be designed for high reliability, good efficiency, and long service life with reasonable maintenance requirements, low cost, and an appropriate mechanical design for anticipated applied steady and unsteady loads. The ultimate goal of a PTO design is high efficiency and low maintenance and cost, with a low impact on the device cost-of-energy (CoE).

Beam, M.; Kline, B.; Elbing, B.; Straka, W.; Fontaine, A.; Lawson, M.; Li, Y.; Thresher, R.; Previsic, M.

2013-02-01T23:59:59.000Z

215

Marine Hydrokinetic Turbine Power-Take-Off Design for Optimal Performance and Low Impact on Cost-of-Energy: Preprint  

DOE Green Energy (OSTI)

Marine hydrokinetic devices are becoming a popular method for generating marine renewable energy worldwide. These devices generate electricity by converting the kinetic energy of moving water, wave motion or currents, into electrical energy through the use of a Power-Take-Off (PTO) system. Most PTO systems incorporate a mechanical or hydraulic drive train, power generator and electric control/conditioning system to deliver the generated electric power to the grid at the required state. Like wind turbine applications, the PTO system must be designed for high reliability, good efficiency, and long service life with reasonable maintenance requirements, low cost and an appropriate mechanical design for anticipated applied steady and unsteady loads. The ultimate goal of a PTO design is high efficiency, low maintenance and cost with a low impact on the device Cost-of-Energy (CoE).

Beam, M.; Kline, B.; Elbing, B.; Straka, W.; Fontaine, A.; Lawson, M.; Li, Y.; Thresher, R.; Previsic, M.

2012-04-01T23:59:59.000Z

216

Turbulence Characteristics in a Tidal Channel  

Science Conference Proceedings (OSTI)

A broadband ADCP and a moored microstructure instrument (TAMI) were deployed in a tidal channel of 30-m depth and with peak speeds of 1 m s?1. The measurements enable us to derive profiles of stress, turbulent kinetic energy (TKE), the rate of ...

Youyu Lu; Rolf G. Lueck; Daiyan Huang

2000-05-01T23:59:59.000Z

217

Resonant Tidal Disruption in Galactic Nuclei  

E-Print Network (OSTI)

It has recently been shown that the rate of angular momentum relaxation in nearly-Keplerian star clusters is greatly increased by a process termed resonant relaxation (Rauch & Tremaine 1996), who also argued that tidal disruption of stars in galactic nuclei containing massive black holes could be noticeably enhanced by this process. We describe here the results of numerical simulations of resonant tidal disruption which quantitatively test the predictions made by Rauch & Tremaine. The simulation method is based on an N-body routine incorporating cloning of stars near the loss cone and a semi-relativistic symplectic integration scheme. We also briefly describe the discovery of chaos in the Wisdom-Holman symplectic integrator applied to highly eccentric orbits and propose a modified integration scheme that remains robust under these conditions. We find that resonant disruption rates exceed their non-resonant counterparts by an amount consistent with the predictions; in particular, we estimate the net tidal disruption rate for a fully resonant cluster to be about twice that of its non-resonant counterpart. No significant enhancement in rates is observed outside the critical radius. Relativistic quenching of the effect is found to occur for hole masses M>8*10^7 solar masses. The numerical results combined with the observed properties of galactic nuclei indicate that for most galaxies the resonant enhancement to tidal disruption rates will be very small.

Kevin P. Rauch; Brian Ingalls

1997-10-24T23:59:59.000Z

218

Tidal Flow through the Straits of Dover  

Science Conference Proceedings (OSTI)

Results are presented from the first long-term deployment of the Mark II OSCR high-frequency radar system. This new system measures surface currents at 700 preselected locations every 20 minutes at a range up to 25 km offshore. Tidal analysis, in ...

D. Prandle; S. G. Loch; R. Player

1993-01-01T23:59:59.000Z

219

2008 NWFSC Tidal Freshwater Genetics Results  

SciTech Connect

Genetic Analysis of Juvenile Chinook Salmon for inclusion in 'Ecology of Juvenile Salmon in Shallow Tidal Freshwater Habitats in the Vicinity of the Sandy River Delta, Lower Columbia River, 2008. Annual Report to Bonneville Power Administration, Contract DE-AC05-76RL01830.'

David Teel

2009-05-01T23:59:59.000Z

220

Inflow Characterization for Marine and Hydrokinetic Energy Devices. FY-2010 Annual Progress Report  

DOE Green Energy (OSTI)

Marine and Hydro Kinetic devices (MHK) are being widely studied as a source of renewable energy. The Marrowstone Island site is a potential location for installing MHK devices because the tidal currents observed that are sufficient for power generation. In order to quantify the effects of turbulence on MHK devices and the surrounding environment at this site, a prelimi- nary fluid flow field study was conducted here by the Pacific Northwest National Lab (PNNL) in collaboration with the Applied Physics Lab at the University of Washington (APL-UW). This study entailed continuous The Acoustic Doppler Velocimetry (ADV), Acoustic Doppler Current Profiler (ADCP) and Conductivity, Temperature and Depth (CTD) measurements from May 4, 2010 to May 22, 2010, in order to obtain information about turbulence effects during different tidal conditions. The instruments used for collecting the above measurements were deployed at the Marrowstone site using a R/V Jack Robertson provided by the University of Washington (APL-UW). All the measurements were taken at the site with an average depth of 22 m below the sea surface. ADV acquired velocity data at 32 Hz sampling frequency at 4.6 m above the seabed, and ADCP acquired velocity profile data at a sampling frequency of 2 Hz, from a height of 2.6 m above the seabed to the surface with a bin resolution of 0.5 m. The ADV and ADCP measurements showed that the horizontal velocity had a turbulence intensity of 10%. Further- more, the spectral analysis from ADV measurements showed that the flow is fully turbulent with -5/3 slope in the inertial sub-range of the spectra. Moreover, the temporal-frequency analysis showed presence of ”eddies” at high frequencies. These preliminary studies provided initial flow field and site characteristics, showed the limitations of the instruments used and highlighted changes that need to be made in the experimental setup for deployment in FY-2011 studies.

Richmond, Marshall C.; Durgesh, Vibhav; Thomson, Jim; Polagye, Brian

2011-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

FFP/NREL Collaboration on Hydrokinetic River Turbine Testing: Cooperative Research and Development Final Report, CRADA Number CRD-12-00473  

DOE Green Energy (OSTI)

This shared resources CRADA defines collaborations between the National Renewable Energy Laboratory (NREL) and Free Flow Power (FFP) set forth in the following Joint Work Statement. Under the terms and conditions described in this CRADA, NREL and FFP will collaborate on the testing of FFP's hydrokinetic river turbine project on the Mississippi River (baseline location near Baton Rouge, LA; alternate location near Greenville, MS). NREL and FFP will work together to develop testing plans, instrumentation, and data acquisition systems; and perform field measurements.

Driscoll, F.

2013-04-01T23:59:59.000Z

222

MHK Technologies/Deep Gen Tidal Turbines | Open Energy Information  

Open Energy Info (EERE)

Deep Gen Tidal Turbines Deep Gen Tidal Turbines < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Deep Gen Tidal Turbines.jpg Technology Profile Primary Organization Tidal Generation Ltd Project(s) where this technology is utilized *MHK Projects/Tidal Generation Ltd EMEC Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The DEEP Gen 1 MW fully submerged tidal turbine best exploits resources in depths 30m The horizontal axis turbine is inexpensive to construct and easy to install due to the lightweight 80 tons MW support structure allows rapid removal and replacement of powertrains enabling safe maintenance in a dry environment and is located out of the wave zone for improved survivability

223

Reservoir response to tidal and barometric effects  

DOE Green Energy (OSTI)

Solid earth tidal strain and surface loading due to fluctuations in barometric pressure have the effect, although extremely minute, of dilating or contracting the effective pore volume in a porous reservoir. If a well intersects the formation, the change in pore pressure can be measured with sensitive quartz pressure gauges. Mathematical models of the relevant fluid dynamics of the well-reservoir system have been generated and tested against conventional well pumping results or core data at the Salton Sea Geothermal Field (SSGF), California and at the Raft River, Geothermal Field (RRGF), Idaho. Porosity-total compressibility product evaluation based on tidal strain response compares favorably with results based on conventional pumping techniques. Analysis of reservoir response to barometric loading using Auto Regressive Integrated Moving Average (ARIMA) stochastic modeling appears also to have potential use for the evaluation of reservoir parameters.

Hanson, J.M.

1980-05-29T23:59:59.000Z

224

Gas/Star Offsets in Tidal Tails  

E-Print Network (OSTI)

We use numerical simulations to study the development of gas/star offsets in the tidal tails of merging galaxies. These offsets are shown to be a natural consequence of the radially extended HI spatial distribution in disk galaxies, coupled with internal dissipation in the gaseous component driven by the interaction. This mechanism explains the observed gas/star offsets in interacting galaxies without invoking interactions with a hot (unseen) gaseous component.

Mihos, C

2000-01-01T23:59:59.000Z

225

Gas/Star Offsets in Tidal Tails  

E-Print Network (OSTI)

We use numerical simulations to study the development of gas/star offsets in the tidal tails of merging galaxies. These offsets are shown to be a natural consequence of the radially extended HI spatial distribution in disk galaxies, coupled with internal dissipation in the gaseous component driven by the interaction. This mechanism explains the observed gas/star offsets in interacting galaxies without invoking interactions with a hot (unseen) gaseous component.

Chris Mihos

2000-08-09T23:59:59.000Z

226

Screening Analysis for the Environmental Risk Evaluation System Task 2.1.1.2: Evaluating Effects of Stressors Fiscal Year 2011 Progress Report - Environmental Effects of Marine and Hydrokinetic Energy  

SciTech Connect

Potential environmental effects of marine and hydrokinetic (MHK) energy development are not well understood, and yet regulatory agencies are required to make decisions in spite of substantial uncertainty about environmental impacts and their long-term consequences. An understanding of risks associated with interactions between MHK installations and aquatic receptors, including animals, habitats, and ecosystems, can help define key uncertainties and focus regulatory actions and scientific studies on interactions of most concern. As a first step in developing the Pacific Northwest National Laboratory (PNNL) Environmental Risk Evaluation System (ERES), PNNL scientists conducted a preliminary risk screening analysis on three initial MHK cases. During FY 2011, two additional cases were added: a tidal project in the Gulf of Maine using Ocean Renewable Power Company TidGenTM turbines and a wave project planned for the coast of Oregon using Aquamarine Oyster surge devices. Through an iterative process, the screening analysis revealed that top-tier stressors in the two FY 2011 cases were the dynamic effects of the device (e.g., strike), accidents/disasters, and effects of the static physical presence of the device (e.g., habitat alteration). Receptor interactions with these stressors at the highest tiers of risk were dominated by threatened and endangered animals. Risk to the physical environment from changes in flow regime also ranked high. Peer review of this process and results will be conducted in early FY 2012. The ERES screening analysis provides an analysis of vulnerability of environmental receptors to stressors associated with MHK installations, probability analysis is needed to determine specific risk levels to receptors. “Risk” has two components: (1) The likelihood, or “probability”, of the occurrence of a given interaction or event, and (2) the potential “consequence” if that interaction or event were to occur. During FY 2011, the ERES screening analysis focused primarily on the second component of risk, “consequence”, with focused probability analysis for interactions where data was sufficient for probability modeling. Consequence analysis provides an assessment of vulnerability of environmental receptors to stressors associated with MHK installations. Probability analysis is needed to determine specific risk levels to receptors and requires significant data inputs to drive risk models. During FY 2011, two stressor-receptor interactions were examined for the probability of occurrence. The two interactions (spill probability due to an encounter between a surface vessel and an MHK device; and toxicity from anti-biofouling paints on MHK devices) were seen to present relatively low risks to marine and freshwater receptors of greatest concern in siting and permitting MHK devices. A third probability analysis was scoped and initial steps taken to understand the risk of encounter between marine animals and rotating turbine blades. This analysis will be completed in FY 2012.

Copping, Andrea E.; Blake, Kara M.; Anderson, Richard M.; Zdanski, Laura C.; Gill, Gary A.; Ward, Jeffrey A.

2011-09-01T23:59:59.000Z

227

MHK Technologies/Tidal Defense and Energy System TIDES | Open Energy  

Open Energy Info (EERE)

MHK Technologies/Tidal Defense and Energy System TIDES MHK Technologies/Tidal Defense and Energy System TIDES < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Defense and Energy System TIDES.jpg Technology Profile Primary Organization Oceana Energy Company Project(s) where this technology is utilized *MHK Projects/Astoria Tidal Energy *MHK Projects/Cape Islands Tidal Energy Project *MHK Projects/Central Cook Inlet Tidal Energy Project *MHK Projects/Icy Passage Tidal Energy Project *MHK Projects/Kachemak Bay Tidal Energy Project *MHK Projects/Kendall Head Tidal Energy *MHK Projects/Kennebec *MHK Projects/Penobscot Tidal Energy Project *MHK Projects/Portsmouth Area Tidal Energy Project *MHK Projects/Wrangell Narrows Tidal Energy Project Technology Resource Click here Current/Tidal

228

Assessment of Tidal Energy Removal Impacts on Physical Systems: Development of MHK Module and Analysis of Effects on Hydrodynamics  

SciTech Connect

In this report we describe (1) the development, test, and validation of the marine hydrokinetic energy scheme in a three-dimensional coastal ocean model (FVCOM); and (2) the sensitivity analysis of effects of marine hydrokinetic energy configurations on power extraction and volume flux in a coastal bay. Submittal of this report completes the work on Task 2.1.2, Effects of Physical Systems, Subtask 2.1.2.1, Hydrodynamics and Subtask 2.1.2.3, Screening Analysis, for fiscal year 2011 of the Environmental Effects of Marine and Hydrokinetic Energy project.

Yang, Zhaoqing; Wang, Taiping

2011-09-01T23:59:59.000Z

229

MHK Technologies/Tidal Sails | Open Energy Information  

Open Energy Info (EERE)

Sails Sails < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Sails.jpg Technology Profile Primary Organization Tidal Sails AS Technology Resource Click here Current Technology Type Click here Oscillating Wave Surge Converter Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Tidal Sails device is a series of underwater sails affixed to wires strung across the tidal stream at an angle The sails are driven back and forth by the tidal flow between two stations at one of which the generator is installed Technology Dimensions Device Testing Date Submitted 26:04.6 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Tidal_Sails&oldid=681675

230

On-Road Results from Charging Infrastructure and Grid Connected...  

NLE Websites -- All DOE Office Websites (Extended Search)

and reduce the nation's dependence on foreign oil * Multi-program DOE laboratory * * Nuclear Energy Nuclear Energy * Fossil, Biomass, Wind, Geothermal and Hydropower Energy *...

231

ARRA Grid-Connected Vehicles Transportation Electrification Demonstrat...  

NLE Websites -- All DOE Office Websites (Extended Search)

Projects, and INL Data Collection Projects, and INL Data Collection Support Clean Cities 2010 Coordinator Leadership Retreat - Rapid City, S.D. Leadership Retreat Rapid...

232

EERE News: Maine Project Launches First Grid-Connected Offshore...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

to be deployed in the world-strengthening American leadership in innovative clean energy technologies that diversify the nation's energy mix with more clean, domestic energy...

233

Transatlantic Workshop on Electric Vehicles and Grid Connectivity...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Union, under the auspices of the U.S.-EU Energy Council, invited equipment suppliers and manufacturers, utilities, policymakers, standards organizations, and government agencies...

234

Grid Connected Wind Power in China: Renewable Energy in China  

DOE Green Energy (OSTI)

Fact sheet describes China's use of wind energy, policy and market development programs, financing, research and development, and information resources.

Not Available

2004-04-01T23:59:59.000Z

235

Storage Size Determination for Grid-Connected Photovoltaic Systems  

E-Print Network (OSTI)

and upper bounds on Cc ref, and introduce an efficient algorithm for calculating its value; these results greenhouse gas emissions due to fossil fuels and the liberalization of the electricity market have led in zero-energy buildings and residential homes, or iv) power arbitrage under time-of-use electricity

Martínez, Sonia

236

Grid-Connected Renewables Program (New Jersey) | Open Energy...  

Open Energy Info (EERE)

Sector Commercial, Industrial, Institutional, Local Government, Nonprofit, Schools, State Government Eligible Technologies Anaerobic Digestion, Biomass, Landfill Gas, Wind,...

237

Microsoft PowerPoint - LIPA Considerations for Grid Connection...  

NLE Websites -- All DOE Office Websites (Extended Search)

of the f d t l f fundamental frequency. 1 Interconnection Complications Experienced Inverter manufacturers could not guarantee SGF could disconnect from the LIPA system within...

238

Controlling of grid connected photovoltaic lighting system with fuzzy logic  

SciTech Connect

In this study, DC electrical energy produced by photovoltaic panels is converted to AC electrical energy and an indoor area is illuminated using this energy. System is controlled by fuzzy logic algorithm controller designed with 16 rules. Energy is supplied from accumulator which is charged by photovoltaic panels if its energy would be sufficient otherwise it is supplied from grid. During the 1-week usage period at the semester time, 1.968 kWh energy is used from grid but designed system used 0.542 kWh energy from photovoltaic panels at the experiments. Energy saving is determined by calculations and measurements for one education year period (9 months) 70.848 kWh. (author)

Saglam, Safak; Ekren, Nazmi; Erdal, Hasan [Technical Education Faculty, Marmara University, Istanbul 34722 (Turkey)

2010-02-15T23:59:59.000Z

239

Prospects for grid-connected solar PV in Kenya  

E-Print Network (OSTI)

Kenya's electric power system is heavily reliant on hydropower, leaving it vulnerable during recurring droughts. Supply shortfalls are currently met through the use of expensive leased diesel generation. Therefore, plans ...

Rose, Amy Michelle

2013-01-01T23:59:59.000Z

240

MHK Technologies/Tidal Lagoons | Open Energy Information  

Open Energy Info (EERE)

Tidal Lagoons Tidal Lagoons < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Lagoons.jpg Technology Profile Primary Organization Tidal Electric Project(s) where this technology is utilized *MHK Projects/Dandong City *MHK Projects/Swansea Bay Technology Resource Click here Current/Tidal Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description idal Lagoons are situated a mile or more offshore in high tidal range areas, and use a rubble mound impoundment structure and low-head hydroelectric bulb turbines. Shallow tidal flats provide the most economical sites. Multi-cell Tidal Lagoons provide higher load factors (about 62%) and have the flexibility to shape the output curve in order to dispatch power in response to demand price signals. The impoundment structure is a conventional rubble mound breakwater (loose rock, concrete, and marine sheetpiles are among the types of appropriate materials for the impoundment structure), with ordinary performance specifications and is built from the most economical materials. The barrage is much shorter than an impoundment structure with the same output capacity, but the barrage is a much larger structure. The offshore tidal generator uses conventional low-head hydroelectric generation equipment and control systems. The equipment consists of a mixed-flow reversible bulb turbine, a generator, and the control system. Manufacturers/suppliers include Alstom, GE, Kvaerner, Siemens, Voith, Sulzer, and others.

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hydropower, Wave and Tidal Technologies - Energy Innovation Portal  

Biomass and Biofuels Hydropower, Wave and Tidal Industrial ... raw materials suggests the need for elimination of these materials from electric motors ...

242

Lyman Alpha Absorption and Tidal Debris  

E-Print Network (OSTI)

The origin and evolution of structure in the Universe is one of the major questions occupying astronomers today. An understanding of the Lyalpha absorbers seen in QSO spectra is an important part of this program since such absorbers can be traced back to very high redshifts. Their mere existence places constraints on the physical state of the intergalactic medium. The discovery of Lyalpha absorbers at low redshift allows us to estimate for the first time what fraction of low redshift Lyalpha absorbers are (i) randomly distributed, (ii) distributed like galaxies but not physically associated with luminous objects, (iii) actually part of the halos of luminous galaxies, or (iv) tidal tails within galaxy groups. Results from the sightline to the QSO 3C273 suggest that the majority of the absorbers are not associated with galaxies, but that there is a significant subset that are. The absorbers associated with galaxies may be produced in enormous gaseous disks surrounding normal spiral galaxies, or may be tidal material bound up in small groups of galaxies

Simon L. Morris

1994-09-29T23:59:59.000Z

243

Reynolds Stress and Turbulent Energy Production in a Tidal Channel  

Science Conference Proceedings (OSTI)

A high-frequency (1.2 MHz) acoustic Doppler current profiler (ADCP) moored on the seabed has been used to observe the mean and turbulent flow components in a narrow tidally energetic channel over six tidal cycles at neap and spring tides. The ...

Tom P. Rippeth; Eirwen Williams; John H. Simpson

2002-04-01T23:59:59.000Z

244

Some new conceptions in the approach to harnessing tidal energy  

Science Conference Proceedings (OSTI)

This paper outlines a method of converting the energy of ocean tides into electrical and other forms of industrial energy. The main disadvantage of extracting tidal power arises from the low density of tidal power per unit area of the ocean. This leads to the high cost of required investment for the production of a substantial volume of the energy. 10 refs.

Gorlov, A.M.

1981-01-01T23:59:59.000Z

245

Hawaii Ocean Current Resources and Tidal Turbine Assessment  

Science Conference Proceedings (OSTI)

Interest in converting the kinetic energy of ocean current and tidal flow into electrical power has increased in recent years. This report focuses on the ocean current resource in Hawaii, which includes tidal flows as well as uni-directional oceanic current flows around the main Hawaiian Islands, with the exception of Kauai, from the shoreline to approximately the 2000-m depth contour.

2008-09-02T23:59:59.000Z

246

Tidal Energetics over the Chatham Rise, New Zealand  

Science Conference Proceedings (OSTI)

Separate one-month current meter deployments in 1996 and 1997 over the Chatham Rise, east of New Zealand, show that tidal phases are both stable in time and close to those derived from a barotropic tidal model, while amplitudes show coefficients ...

Stephen M. Chiswell

2000-09-01T23:59:59.000Z

247

MHK Technologies/TidalStar | Open Energy Information  

Open Energy Info (EERE)

TidalStar TidalStar < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage TidalStar.jpg Technology Profile Primary Organization Bourne Energy Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The horizontal axis TidalStar device uses a bidirectional twin rotor turbine to produce approximately 50 kW at peak capacity in both ebb and flood tides Technology Dimensions Length (m) 6 Width (m) 6 Freeboard (m) 1 Technology Nameplate Capacity (MW) 5 Device Testing Date Submitted 46:38.3 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/TidalStar&oldid=681677

248

Water Mixing in a Tidal Current and the Effect of Turbulence on Tidal Exchange through a Strait  

Science Conference Proceedings (OSTI)

By means of numerical calculations of the Lagrangian movement of water particles released in a turbulent tidal current during three cycles of the M2 tide, the mechanism of tidal mixing of the inner and outer waters divided initially by a strait ...

Toshiyuki Awaji

1982-06-01T23:59:59.000Z

249

Quantifying Turbulence for Tidal Power Applications  

SciTech Connect

Using newly collected data from a tidal power site in Puget Sound, WA, metrics for turbulence quantification are assessed and discussed. The quality of raw ping Acoustic Doppler Current Profiler (ADCP) data for turbulence studies is evaluated against Acoustic Doppler Velocimeter (ADV) data at a point. Removal of Doppler noise from the raw ping data is shown to be a crucial step in turbulence quantification. Excluding periods of slack tide, the turbulent intensity estimates at a height of 4.6 m above the seabed are 8% and 11% from the ADCP and ADV, respectively. Estimates of the turbulent dissipation rate are more variable, from 10e-3 to 10e-1 W/m^3. An example analysis of coherent Turbulent Kinetic Energy (TKE) is presented.

Thomson, Jim; Richmond, Marshall C.; Polagye, Brian; Durgesh, Vibhav

2010-08-01T23:59:59.000Z

250

THE ENVIRONMENTAL DEPENDENCE OF THE INCIDENCE OF GALACTIC TIDAL FEATURES  

Science Conference Proceedings (OSTI)

In a sample of 54 galaxy clusters (0.04 < z < 0.15) containing 3551 early-type galaxies suitable for study, we identify those with tidal features both interactively and automatically. We find that {approx}3% have tidal features that can be detected with data that reach a 3{sigma} sensitivity limit of 26.5 mag arcsec{sup -2}. Regardless of the method used to classify tidal features, or the fidelity imposed on such classifications, we find a deficit of tidally disturbed galaxies with decreasing clustercentric radius that is most pronounced inside of {approx}0.5 R{sub 200}. We cannot distinguish whether the trend arises from an increasing likelihood of recent mergers with increasing clustercentric radius or a decrease in the lifetime of tidal features with decreasing clustercentric radius. We find no evidence for a relationship between local density and the incidence of tidal features, but our local density measure has large uncertainties. We find interesting behavior in the rate of tidal features among cluster early-types as a function of clustercentric radius and expect such results to provide constraints on the effect of the cluster environment on the structure of galaxy halos, the build-up of the red sequence of galaxies, and the origin of the intracluster stellar population.

Adams, Scott M.; Zaritsky, Dennis [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Sand, David J.; Graham, Melissa L. [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Dr., Suite 102, Santa Barbara, CA 93117 (United States); Bildfell, Chris; Pritchet, Chris [Department of Physics and Astronomy, University of Victoria, P.O. Box 3055, STN CSC, Victoria, BC V8W 3P6 (Canada); Hoekstra, Henk [Leiden Observatory, Leiden University, Niels Bohrweg 2, NL-2333 CA Leiden (Netherlands)

2012-11-01T23:59:59.000Z

251

EA-1916: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1916: Finding of No Significant Impact Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot Project, Cobscook Bay in Washington County, Maine Based on the Final Environmental Assessment, DOE has determined that authorizing the expenditirure of federal funding to ORPC Maine to build, install, operate, and monitor a commercial-scale arry of five grid-connected TidGenTM hydrokinetic energy conversion devices on the sea floor in Cobscook Bay does not constitute a major federal action significantly affecting the quality of the human environment within the context of NEPA. Therefore, an EIS is not required and DOE is issuing this FONSI. EA-1916-FONSI-2012.pdf More Documents & Publications EA-1916: Final Environmental Assessment

252

EA-1916: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1916: Finding of No Significant Impact Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot Project, Cobscook Bay in Washington County, Maine Based on the Final Environmental Assessment, DOE has determined that authorizing the expenditirure of federal funding to ORPC Maine to build, install, operate, and monitor a commercial-scale arry of five grid-connected TidGenTM hydrokinetic energy conversion devices on the sea floor in Cobscook Bay does not constitute a major federal action significantly affecting the quality of the human environment within the context of NEPA. Therefore, an EIS is not required and DOE is issuing this FONSI. EA-1916-FONSI-2012.pdf More Documents & Publications EA-1916: Notice of Availability of a Finding of No Significant Impact

253

Microsoft Word - Notice of Availability_FONSI.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and a Notice of Wetland Action based on the adoption of a Federal Energy and a Notice of Wetland Action based on the adoption of a Federal Energy Regulatory Commission (FERC) Environmental Assessment (EA) that described and evaluated the potential environmental impacts associated with the: Ocean Renewable Power Company, LLC's Cobscook Bay Tidal Energy Project Cobscook Bay in Washington County, Maine (DOE/EA 1916) Based on an independent review of the FERC EA, DOE's Golden Field Office has determined that that authorizing the expenditure of federal funding to ORPC Maine build, install, operate, and monitor a commercial-scale array of five grid-connected TidGen(tm) hydrokinetic energy conversion devices on the sea floor in Cobscook Bay does not constitute a major federal action significantly affecting the quality of the

254

Ocean Tidal Dissipation and its Role in Solar System Satellite Evolution  

E-Print Network (OSTI)

Magma ocean dissipation . . . . . . . . . . . . . . . .of the ocean . . . . . . . . . . . . . . . . . . . . . .Tidally-driven flow in global satellite oceans

Chen, Erinna

2013-01-01T23:59:59.000Z

255

MHK Technologies/Jiangxia Tidal Power Station | Open Energy Information  

Open Energy Info (EERE)

Jiangxia Tidal Power Station Jiangxia Tidal Power Station < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Jiangxia Tidal Power Station.jpg Technology Profile Primary Organization China Guodian Corporation Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 9 Commercial Scale Production Application Technology Description There are 6 bulb turbine generator units operating in both ebb and flood tides with a total installed capacity up to 3 9 MW Technology Dimensions Technology Nameplate Capacity (MW) 3 9 Device Testing Date Submitted 14:15.7 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Jiangxia_Tidal_Power_Station&oldid=681601

256

Reservoir response to tidal and barometric effects | Open Energy  

Open Energy Info (EERE)

to tidal and barometric effects to tidal and barometric effects Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Reservoir response to tidal and barometric effects Details Activities (2) Areas (2) Regions (0) Abstract: Solid earth tidal strain and surface loading due to fluctuations in barometric pressure have the effect, although extremely minute, of dilating or contracting the effective pore volume in a porous reservoir. If a well intersects the formation, the change in pore pressure can be measured with sensitive quartz pressure gauges. Mathematical models of the relevant fluid dynamics of the well-reservoir system have been generated and tested against conventional well pumping results or core data at the Salton Sea Geothermal Field (SSGF), California and at the Raft River,

257

Residual Circulations Due to Bottom Roughness Variability under Tidal Flows  

Science Conference Proceedings (OSTI)

Tidal flows over irregular bathymetry are known to produce residual circulation flows due to nonlinear interaction with gradients of depth. Using the depth-averaged vorticity equations, the generation of residual vorticity and residual flows due ...

Thomas F. Gross; Francisco E. Werner

1994-07-01T23:59:59.000Z

258

Tidal Motion in Submarine Canyons—A Laboratory Experiment  

Science Conference Proceedings (OSTI)

The reasons for the large-amplitude tidal motion observed in oceanic submarine canyons have been explored with a laboratory experiment. A barotropic tide was forced in a stratified tank, containing continental shelf-slope topography into which a ...

Peter G. Baines

1983-02-01T23:59:59.000Z

259

Estimating Open-Ocean Barotropic Tidal Dissipation: The Hawaiian Ridge  

Science Conference Proceedings (OSTI)

The generalized inverse of a regional model is used to estimate barotropic tidal dissipation along the Hawaiian Ridge. The model, based on the linear shallow-water equations, incorporates parameterizations for the dissipation of energy via ...

Edward D. Zaron; Gary D. Egbert

2006-06-01T23:59:59.000Z

260

Boils and Turbulence in a Weakly Stratified Shallow Tidal Sea  

Science Conference Proceedings (OSTI)

Measurements of turbulence are made in a weakly but variably stratified region of tidal straining in the eastern Irish Sea using turbulence sensors profiling vertically through the water column on the Fast Light Yo-yo (FLY) profiler and ...

S. A. Thorpe; J. A. M. Green; J. H. Simpson; T. R. Osborn; W. A. M. Nimmo Smith

2008-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Asymmetric Tidal Mixing due to the Horizontal Density Gradient  

Science Conference Proceedings (OSTI)

Stratification and turbulent mixing exhibit a flood–ebb tidal asymmetry in estuaries and continental shelf regions affected by horizontal density gradients. The authors use a large-eddy simulation (LES) model to investigate the penetration of a ...

Ming Li; John Trowbridge; Rocky Geyer

2008-02-01T23:59:59.000Z

262

Three-Dimensional Tidal Flow in an Elongated, Rotating Basin  

Science Conference Proceedings (OSTI)

The three-dimensional tidal circulation in an elongated basin of arbitrary depth is described with a linear, constant-density model on the f plane. Rotation fundamentally alters the lateral flow, introducing a lateral recirculation comparable in ...

Clinton D. Winant

2007-09-01T23:59:59.000Z

263

Instability of Baroclinic Tidal Flow in a Stratified Fjord  

Science Conference Proceedings (OSTI)

The Taylor–Goldstein equation is used to investigate the stability of a baroclinic tidal flow observed in a stratified fjord. The flow is analyzed at hourly intervals when turbulent dissipation measurements were made. The critical gradient ...

Zhiyu Liu

2010-01-01T23:59:59.000Z

264

Low-Pass Filters to Suppress Inertial and Tidal Frequencies  

Science Conference Proceedings (OSTI)

A systematic way is given to design digital filters which allow clear separation of signals with periods of a few days from noise of higher frequency, particularly tidal and inertial. Several examples are given which pass little high-frequency ...

Rory O. R. Y. Thompson

1983-06-01T23:59:59.000Z

265

Observations of Quasi-Two-Dimensional Turbulence in Tidal Currents  

Science Conference Proceedings (OSTI)

Observational evidence for the existence of quasi-two-dimensional turbulence in tidal currents is derived from the auto- and cross-correlation spectra of vertically separated current meters. The observed quasi- two-dimensional turbulence seems to ...

C. Veth; J. T. F. Zimmerman

1981-10-01T23:59:59.000Z

266

Decadal Climate Variability: Is There a Tidal Connection?  

Science Conference Proceedings (OSTI)

A possible connection between oceanic tides and climate variability arises from modulations in tidally induced vertical mixing. The idea is reexamined here with emphasis on near-decadal time scales. Occasional extreme tides caused by unusually ...

Richard D. Ray

2007-07-01T23:59:59.000Z

267

A Simple Parameterization of Turbulent Tidal Mixing near Supercritical Topography  

Science Conference Proceedings (OSTI)

A simple parameterization for tidal dissipation near supercritical topography, designed to be applied at deep midocean ridges, is presented. In this parameterization, radiation of internal tides is quantified using a linear knife-edge model. ...

Jody M. Klymak; Sonya Legg; Robert Pinkel

2010-09-01T23:59:59.000Z

268

MHK Technologies/Sabella subsea tidal turbine | Open Energy Information  

Open Energy Info (EERE)

subsea tidal turbine subsea tidal turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Description It is characterised by a turbine configuration on the seafloor, without impinging on the surface. These turbines are stabilised by gravity and/or are anchored according to the nature of the seafloor. They are pre-orientated in the direction of the tidal currents, and the profile of their symmetrical blades helps to capture the ebb and flow. The rotor activated, at slow speeds (10 to 15 rpm), by the tides powers a generator, which exports the electricity produced to the coast via a submarine cable anchored and embedded at its landfall.

269

MHK Technologies/Tidal Stream Turbine | Open Energy Information  

Open Energy Info (EERE)

Stream Turbine Stream Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Stream Turbine.jpg Technology Profile Primary Organization StatoilHydro co owned by Hammerfest Strong Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description A fully operational 300kW prototype tidal turbine has been running in Norway since 2003 and has achieved good results It s the world s first tidal turbine to supply electricity directly to the onshore grid In the autumn of 2008 Hammerfest Str�m signed an intention agreement with Scottish Power to further develop tidal technology in the UK A 1 MW turbine is currently under development

270

Relationships between Tidal Dynamics and Bathymetry in Strongly Convergent Estuaries  

Science Conference Proceedings (OSTI)

Localized analytical solutions are derived for the propagation of a single (predominant) tidal constituent in estuaries with strongly convergent triangular cross sections. The advective term is neglected, and the friction term is linearized. The ...

D. Prandle

2003-12-01T23:59:59.000Z

271

Nonrotating black hole in a post-Newtonian tidal environment  

E-Print Network (OSTI)

We examine the motion and tidal dynamics of a nonrotating black hole placed within a post-Newtonian external spacetime. The tidal perturbation created by the external environment is treated as a small perturbation. At a large distance from the black hole, the gravitational field of the external distribution of matter is assumed to be sufficiently weak to be adequately described by the (first) post-Newtonian approximation to general relativity. There, the black hole is treated as a monopole contribution to the total gravitational field. There exists an overlap in the domains of validity of each description, and the black-hole and post-Newtonian metrics are matched in the overlap. The matching procedure produces the equations of motion for the black hole and the gravito-electric and gravito-magnetic tidal fields acting on the black hole. We first calculate the equations of motion and tidal fields by making no assumptions regarding the nature of the post-Newtonian environment; this could contain a continuous distribution of matter or any number of condensed bodies. We next specialize our discussion to a situation in which the black hole is a member of a post-Newtonian two-body system. As an application of our results, we examine the geometry of the deformed event horizon and calculate the tidal heating of the black hole, the rate at which it acquires mass as a result of its tidal interaction with the companion body.

Stephanne Taylor; Eric Poisson

2008-06-18T23:59:59.000Z

272

MHK Technologies/Scotrenewables Tidal Turbine SRTT | Open Energy  

Open Energy Info (EERE)

Scotrenewables Tidal Turbine SRTT Scotrenewables Tidal Turbine SRTT < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Scotrenewables Tidal Turbine SRTT.jpg Technology Profile Primary Organization Scotrenewables Project(s) where this technology is utilized *MHK Projects/Scotrenewables EMEC Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 4: Proof of Concept Technology Description The Scotrenewables Tidal Turbine (SRTT) system is a free-floating rotor-based tidal current energy converter. The concept in its present configuration involves dual counter-rotating horizontal axis rotors driving generators within sub-surface nacelles, each suspended from separate keel and rotor arm sections attached to a single surface-piercing cylindrical buoyancy tube. The device is anchored to the seabed via a yoke arrangement. A separate flexible power and control umbilical line connects the device to a subsea junction box. The rotor arm sections are hinged to allow each two-bladed rotor to be retracted so as to be parallel with the longitudinal axis of the buoyancy tube, giving the system a transport draught of less than 4.5m at full-scale to facilitate towing the device into harbors for maintenance.

273

MHK Technologies/Tidal Stream | Open Energy Information  

Open Energy Info (EERE)

Stream Stream < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Stream.jpg Technology Profile Primary Organization Tidal Stream Project(s) where this technology is utilized *MHK Projects/Thames at Chiswick Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The TidalStream SST (Semi-Submersible Turbine) is designed for deep water, typically 60m+ (e.g., Pentland Firth) where it is too deep to mount turbines rigidly to the seabed and too rough for surface floaters to survive. Tidal Stream SST consists of turbines connected to unique semi-submersible spar buoys that are moored to the seabed using anchors through swing-arms. This ensures automatic alignment to the tidal flow to maximize energy capture. By blowing the water ballast, the device will rise, rotate, and float to the surface still tethered to the base to allow for on- or off-site maintenance. By releasing the tether arm the device can be towed to a harbor at the end of its life or for major repair or exchange.

274

2007 NWFSC Tidal Freshwater Genetics Results  

SciTech Connect

Genetic Analysis of Juvenile Chinook Salmon for inclusion in 'Ecology of Juvenile Salmonids in Shallow Tidal Freshwater Habitats in the Vicinity of the Sandy River Delta, lower Columbia River, 2007. Final report submitted to the Bonneville Power Administration, Contract DE-AC05-76RLO1830.' Genotypic data were collected for 108 Chinook salmon and used in the genetic stock identification analysis. Results of the mixture analysis are presented in Table 1. Percentage estimates for four genetic stock groups (West Cascade Tributary Fall, Willamette River Spring, Deschutes River Fall, and Upper Columbia River Summer/Fall) ranged from 11% to 43%, all with non-zero lower 95% confidence intervals. Small contributions were also estimated for the West Cascade Tributary Spring (3%) and Snake River Fall (6%) stock groups. Results of individual fish probability assignments were summed by collection date (Figure 1) and site (Figure 2). Assignment probabilities for the most likely stock group for each individual ranged from 0.51 to 1.00 with approximately 60% of the assignments greater than 0.90 (data not shown). Nearly all of the low probability assignments were fish with assignments split between the Deschutes River Fall and Upper Columbia River Summer/Fall groups.

David Teel

2008-03-18T23:59:59.000Z

275

Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code  

DOE Green Energy (OSTI)

This paper describes a recent study to investigate the applicability of a horizontal-axis wind turbine (HAWT) structural dynamics and unsteady aerodynamics analysis program (FAST and AeroDyn respectively) to modeling the forces on marine hydrokinetic (MHK) turbines. This paper summarizes the added mass model that has been added to AeroDyn. The added mass model only includes flow acceleration perpendicular to the rotor disc, and ignores added mass forces caused by blade deflection. A model of the National Renewable Energy Laboratory's (NREL) Unsteady Aerodynamics Experiment (UAE) Phase VI wind turbine was analyzed using FAST and AeroDyn with sea water conditions and the new added mass model. The results of this analysis exhibited a 3.6% change in thrust for a rapid pitch case and a slight change in amplitude and phase of thrust for a case with 30{sup o} of yaw.

Maniaci, D. C.; Li, Y.

2011-10-01T23:59:59.000Z

276

Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code: Preprint  

DOE Green Energy (OSTI)

This paper describes a recent study to investigate the applicability of a horizontal-axis wind turbine (HAWT) structural dynamics and unsteady aerodynamics analysis program (FAST and AeroDyn respectively) to modeling the forces on marine hydrokinetic (MHK) turbines. It summarizes the added mass model that has been added to AeroDyn. The added mass model only includes flow acceleration perpendicular to the rotor disc, and ignores added mass forces caused by blade deflection. A model of the National Renewable Energy Laboratory's (NREL) Unsteady Aerodynamics Experiment (UAE) Phase VI wind turbine was analyzed using FAST and AeroDyn with sea water conditions and the new added mass model. The results of this analysis exhibited a 3.6% change in thrust for a rapid pitch case and a slight change in amplitude and phase of thrust for a case with 30 degrees of yaw.

Maniaci, D. C.; Li, Y.

2012-04-01T23:59:59.000Z

277

Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigating the Influence of Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code D.C. Maniaci Pennsylvania State University Y. Li National Renewable Energy Laboratory Presented at the Oceans 11 Conference Kona, Hawaii September 19-21, 2011 Conference Paper NREL/CP-5000-52306 October 2011 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes.

278

Earth Tidal Analysis At Raft River Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Earth Tidal Analysis At Raft River Geothermal Earth Tidal Analysis At Raft River Geothermal Area(1980) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the reservoir response to tidal and barometric effects Notes Porosity-total compressibility product evaluation based on tidal strain response compares favorably with results based on conventional pumping techniques. Analysis of reservoir response to barometric loading using Auto Regressive Integrated Moving Average (ARIMA) stochastic modeling appears also to have potential use for the evaluation of reservoir parameters. References Hanson, J. M. (29 May 1980) Reservoir response to tidal and barometric effects

279

MHK Technologies/Rotech Tidal Turbine RTT | Open Energy Information  

Open Energy Info (EERE)

Rotech Tidal Turbine RTT Rotech Tidal Turbine RTT < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Rotech Tidal Turbine RTT.jpg Technology Profile Primary Organization Lunar Energy Project(s) where this technology is utilized *MHK Projects/Lunar Energy St David s Peninsula Pembrokeshire South Wales UK *MHK Projects/Lunar Energy Wando Hoenggan Waterway South Korea Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 5/6: System Integration and Technology Laboratory Demonstration Technology Description he Rotech Tidal Turbine (RTT) is a bi-directional horizontal axis turbine housed in a symmetrical venturi duct. The Venturi duct draws the existing ocean currents into the RTT in order to capture and convert energy into electricity. Use of a gravity foundation will allow the RTT to be deployed quickly with little or no seabed preparation at depths in excess of 40 meters. This gives the RTT a distinct advantage over most of its competitors and opens up a potential energy resource that is five times the size of that available to companies using pile foundations.

280

Interruption of Tidal Disruption Flares By Supermassive Black Hole Binaries  

E-Print Network (OSTI)

Supermassive black hole binaries (SMBHBs) are products of galaxy mergers, and are important in testing Lambda cold dark matter cosmology and locating gravitational-wave-radiation sources. A unique electromagnetic signature of SMBHBs in galactic nuclei is essential in identifying the binaries in observations from the IR band through optical to X-ray. Recently, the flares in optical, UV, and X-ray caused by supermassive black holes (SMBHs) tidally disrupting nearby stars have been successfully used to observationally probe single SMBHs in normal galaxies. In this Letter, we investigate the accretion of the gaseous debris of a tidally disrupted star by a SMBHB. Using both stability analysis of three-body systems and numerical scattering experiments, we show that the accretion of stellar debris gas, which initially decays with time $\\propto t^{-5/3}$, would stop at a time $T_{\\rm tr} \\simeq \\eta T_{\\rm b}$. Here, $\\eta \\sim0.25$ and $T_{\\rm b}$ is the orbital period of the SMBHB. After a period of interruption, the accretion recurs discretely at time $T_{\\rm r} \\simeq \\xi T_b$, where $\\xi \\sim 1$. Both $\\eta$ and $\\xi$ sensitively depend on the orbital parameters of the tidally disrupted star at the tidal radius and the orbit eccentricity of SMBHB. The interrupted accretion of the stellar debris gas gives rise to an interrupted tidal flare, which could be used to identify SMBHBs in non-active galaxies in the upcoming transient surveys.

F. K. Liu; S. Li; Xian Chen

2009-10-21T23:59:59.000Z

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281

Consequences of Strong Compression in Tidal Disruption Events  

E-Print Network (OSTI)

The tidal disruption of a star by a supermassive black hole (SMBH) is a highly energetic event with consequences dependent on the degree to which the star plunges inside the SMBH's tidal sphere. We introduce a new analytic model for tidal disruption events (TDEs) to analyze the dependence of these events on beta, the ratio of the tidal radius to the orbital pericenter. We find, contrary to most previous work, that the spread in debris energy for a TDE is largely constant for all beta. This result has important consequences for optical transient searches targeting TDEs, which we discuss. We quantify leading-order general relativistic corrections to this spread in energy and find that they are small. We also examine the role of stellar spin, and find that a combination of spin-orbit misalignment, rapid rotation, and high beta may increase the spread in debris energy. Finally, we quantify for the first time the gravitational wave emission due to the strong compression of a star in a high-beta TDE. Although this signal is unlikely to be detectable for disruptions of main sequence stars, the tidal disruption of a white dwarf by an intermediate mass black hole can produce a strong signal visible to Advanced LIGO at tens of megaparsecs.

Nicholas Stone; Re'em Sari; Abraham Loeb

2012-10-11T23:59:59.000Z

282

NATIONAL GEODATABASE OF TIDAL STREAM POWER RESOURCE IN USA  

Science Conference Proceedings (OSTI)

A geodatabase of tidal constituents is developed to present the regional assessment of tidal stream power resource in the USA. Tidal currents are numerically modeled with the Regional Ocean Modeling System (ROMS) and calibrated with the available measurements of tidal current speeds and water level surfaces. The performance of the numerical model in predicting the tidal currents and water levels is assessed by an independent validation. The geodatabase is published on a public domain via a spatial database engine with interactive tools to select, query and download the data. Regions with the maximum average kinetic power density exceeding 500 W/m2 (corresponding to a current speed of ~1 m/s), total surface area larger than 0.5 km2 and depth greater than 5 m are defined as hotspots and documented. The regional assessment indicates that the state of Alaska (AK) has the largest number of locations with considerably high kinetic power density, followed by, Maine (ME), Washington (WA), Oregon (OR), California (CA), New Hampshire (NH), Massachusetts (MA), New York (NY), New Jersey (NJ), North and South Carolina (NC, SC), Georgia (GA), and Florida (FL).

Smith, Brennan T [ORNL; Neary, Vincent S [ORNL; Stewart, Kevin M [ORNL

2012-01-01T23:59:59.000Z

283

MHK Technologies/KESC Tidal Generator | Open Energy Information  

Open Energy Info (EERE)

KESC Tidal Generator KESC Tidal Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage KESC Tidal Generator.jpg Technology Profile Primary Organization Kinetic Energy Systems Project(s) where this technology is utilized *MHK Projects/Newfound Harbor Project Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The Tidal Generator is based on free flow hydrodynamics for regions that have flood and ebb tides. Strategically attached to bridges, pilings, river, channel, or sea bottoms, this multi-directional generator contains two sets of turbine blades. As the tide flows inward the inward turbine blades opens to maximum rotor diameter while the outward turbine closes into the outward cone-shaped hub to create a hydro dynamically clean surface for water to flow without drag. The center diameter is 75% of the diameter of the turbine blades at full rotor extension for stability.

284

CLIMATE INSTABILITY ON TIDALLY LOCKED EXOPLANETS  

Science Conference Proceedings (OSTI)

Feedbacks that can destabilize the climates of synchronously rotating rocky planets may arise on planets with strong day-night surface temperature contrasts. Earth-like habitable planets maintain stable surface liquid water over geologic time. This requires equilibrium between the temperature-dependent rate of greenhouse-gas consumption by weathering, and greenhouse-gas resupply by other processes. Detected small-radius exoplanets, and anticipated M-dwarf habitable-zone rocky planets, are expected to be in synchronous rotation (tidally locked). In this paper, we investigate two hypothetical feedbacks that can destabilize climate on planets in synchronous rotation. (1) If small changes in pressure alter the temperature distribution across a planet's surface such that the weathering rate goes up when the pressure goes down, a runaway positive feedback occurs involving increasing weathering rate near the substellar point, decreasing pressure, and increasing substellar surface temperature. We call this feedback enhanced substellar weathering instability (ESWI). (2) When decreases in pressure increase the fraction of surface area above the melting point (through reduced advective cooling of the substellar point), and the corresponding increase in volume of liquid causes net dissolution of the atmosphere, a further decrease in pressure will occur. This substellar dissolution feedback can also cause a runaway climate shift. We use an idealized energy balance model to map out the conditions under which these instabilities may occur. In this simplified model, the weathering runaway can shrink the habitable zone and cause geologically rapid 10{sup 3}-fold atmospheric pressure shifts within the habitable zone. Mars may have undergone a weathering runaway in the past. Substellar dissolution is usually a negative feedback or weak positive feedback on changes in atmospheric pressure. It can only cause runaway changes for small, deep oceans and highly soluble atmospheric gases. Both instabilities are suppressed if the atmosphere has a high radiative efficiency. Our results are most relevant for atmospheres that are thin, have low greenhouse-gas radiative efficiency, and have a principal greenhouse gas that is also the main constituent of the atmosphere. ESWI also requires land near the substellar point, and tectonic resurfacing (volcanism, mountain-building) is needed for large jumps in pressure. These results identify a new pathway by which habitable-zone planets can undergo rapid climate shifts and become uninhabitable.

Kite, Edwin S.; Manga, Michael [Department of Earth and Planetary Science, University of California at Berkeley, CA 94720 (United States); Gaidos, Eric, E-mail: edwin.kite@gmail.com [Department of Geology and Geophysics, University of Hawaii at Manoa, Honolulu, HI 96822 (United States)

2011-12-10T23:59:59.000Z

285

MHK Technologies/Tidal Delay | Open Energy Information  

Open Energy Info (EERE)

Delay Delay < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Delay.png Technology Profile Primary Organization Woodshed Technologies Ltd Technology Resource Click here Current Technology Type Click here Overtopping Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Tidal Delay utilizes an existing natural land formation such as a peninsula or isthmus that creates a natural tidal barrier separating moving rising and falling bodies of seawater As the seawater on each side of the natural barrier rises and falls the device captures the energy resulting from the difference in water levels across the barrier using proven hydroelectric technology The device utilizes a standard impulse turbine installed in siphon pipe over under the natural barrier

286

MHK Technologies/Tidal Hydraulic Generators THG | Open Energy Information  

Open Energy Info (EERE)

Generators THG Generators THG < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Hydraulic Generators THG.jpg Technology Profile Primary Organization Tidal Hydraulic Generators Ltd Project(s) where this technology is utilized *MHK Projects/Ramsey Sound Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The concept of generating energy in this way is made unique by our novel design feature. The generator, devised in 1998, is a hydraulic accumulator system, involving relatively small revolving blades which gather power to a central collector, where electricity is generated. The generator, which is situated under water, is 80 metres square, stands at 15 metres high, and is designed to run for a minimum of ten years without service.

287

The environmental interactions of tidal and wave energy generation devices  

Science Conference Proceedings (OSTI)

Global energy demand continues to grow and tidal and wave energy generation devices can provide a significant source of renewable energy. Technological developments in offshore engineering and the rising cost of traditional energy means that offshore energy resources will be economic in the next few years. While there is now a growing body of data on the ecological impacts of offshore wind farms, the scientific basis on which to make informed decisions about the environmental effects of other offshore energy developments is lacking. Tidal barrages have the potential to cause significant ecological impacts particularly on bird feeding areas when they are constructed at coastal estuaries or bays. Offshore tidal stream energy and wave energy collectors offer the scope for developments at varying scales. They also have the potential to alter habitats. A diversity of designs exist, including floating, mid-water column and seabed mounted devices, with a variety of moving-part configurations resulting in a unique complex of potential environmental effects for each device type, which are discussed to the extent possible. - Highlights: Black-Right-Pointing-Pointer We review the environmental impacts of tidal barrages and fences, tidal stream farms and wave energy capture devices. Black-Right-Pointing-Pointer Impacts on habitats, species and the water column, and effects of noise and electromagnetic fields are considered. Black-Right-Pointing-Pointer Tidal barrages can cause significant impacts on bird feeding areas when constructed at coastal estuaries or bays. Black-Right-Pointing-Pointer Wave energy collectors can alter water column and sea bed habitats locally and over large distances.

Frid, Chris, E-mail: c.l.j.frid@liv.ac.uk [School of Environmental Sciences, University of Liverpool, Crown Street, Liverpool, L69 7ZB (United Kingdom); Andonegi, Eider, E-mail: eandonegi@azti.es [AZTI-Tecnalia, Txatxarramendi ugartea, z/g E-48395 Sukarrieta (Bizkaia) (Spain); Depestele, Jochen, E-mail: jochen.depestele@ilvo.vlaanderen.be [Institute for Agricultural and Fisheries Research, Ankerstraat 1, B-8400 Oostende (Belgium); Judd, Adrian, E-mail: Adrian.Judd@cefas.co.uk [Centre for Environment, Fisheries and Aquaculture Science , Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT United Kingdom (United Kingdom); Rihan, Dominic, E-mail: Dominic.RIHAN@ec.europa.eu [Irish Sea Fisheries Board, P.O. Box 12 Dun Laoghaire, Co. Dublin (Ireland); Rogers, Stuart I., E-mail: stuart.rogers@cefas.co.uk [Centre for Environment, Fisheries and Aquaculture Science , Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT United Kingdom (United Kingdom); Kenchington, Ellen, E-mail: Ellen.Kenchington@dfo-mpo.gc.ca [Fisheries and Oceans Canada, Bedford Institute of Oceanography, P.O. Box 1006, Dartmouth Canada, NS B2Y 4A2 (Canada)

2012-01-15T23:59:59.000Z

288

INL - Hydrokinetic & Wave Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Open-Center Turbine (790KB PDF) Hydromatrix - Innovative Solution For Low Impact Hydropower at Existing Engineered Structures (2.2MB PDF) Hydraulic Cross-Flow Turbines (3.5MB...

289

Tidal indicators in the spacetime of a rotating deformed mass  

E-Print Network (OSTI)

Tidal indicators are commonly associated with the electric and magnetic parts of the Riemann tensor (and its covariant derivatives) with respect to a given family of observers in a given spacetime. Recently, observer-dependent tidal effects have been extensively investigated with respect to a variety of special observers in the equatorial plane of the Kerr spacetime. This analysis is extended here by considering a more general background solution to include the case of matter which is also endowed with an arbitrary mass quadrupole moment. Relation with curvature invariants and Bel-Robinson tensor, i.e., observer-dependent super-energy density and super-Poynting vector, are investigated too.

Donato Bini; Kuantay Boshkayev; Andrea Geralico

2013-06-20T23:59:59.000Z

290

Earth Tidal Analysis At Marysville Mountain Geothermal Area (1984) | Open  

Open Energy Info (EERE)

Mountain Geothermal Area (1984) Mountain Geothermal Area (1984) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At Marysville Mountain Geothermal Area (1984) Exploration Activity Details Location Marysville Mountain Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1984 Usefulness useful DOE-funding Unknown Exploration Basis Determine porosity of the reservoir Notes The response of a confined, areally infinite aquifer to external loads imposed by earth tides is examined. Because the gravitational influence of celestial objects occurs over large areas of the earth, the confined aquifer is assumed to respond in an undrained fashion. Since undrained response is controlled by water compressibility, earth tide response can be

291

MHK Projects/Kendall Head Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Kendall Head Tidal Energy Kendall Head Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

292

MHK Technologies/Tidal Turbine | Open Energy Information  

Open Energy Info (EERE)

Turbine Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Turbine.jpg Technology Profile Primary Organization Aquascientific Project(s) where this technology is utilized *MHK Projects/Race Rocks Demonstration Technology Resource Click here Current/Tidal Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 5/6: System Integration and Technology Laboratory Demonstration Technology Description Turbine is positioned by anchoring and cabling Energy extraction from flow that is transverse to the rotation axis Turbines utilize both lift and drag Mooring Configuration Gravity base although other options are currently being explored Technology Dimensions Device Testing Date Submitted 10/8/2010

293

Tidal Dynamics and Residual Circulation in a Well-Mixed Inverse Estuary  

Science Conference Proceedings (OSTI)

The tidal and residual circulations in Laguna San Ignacio (LSI), a well-mixed evaporative lagoon located on the Pacific coast of the Baja California peninsula in Mexico, is described based on surveys and moored observations. At tidal periods ...

Clinton D. Winant; Guillermo Gutiérrez de Velasco

2003-07-01T23:59:59.000Z

294

New Interactive Map Reveals U.S. Tidal Energy Resources | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Interactive Map Reveals U.S. Tidal Energy Resources Interactive Map Reveals U.S. Tidal Energy Resources New Interactive Map Reveals U.S. Tidal Energy Resources July 7, 2011 - 10:50am Addthis A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams | Source: Georgia Institute of Technology A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams | Source: Georgia Institute of Technology Mike Reed Water Power Program Manager, Water Power Program Tidal energy -- a renewable, predictable resource available up and down America's coastlines -- holds great promise for clean energy generation. And now, a first of its kind database gives researchers deeper insight into the potential of this energy resource for the United States.

295

Depth-Dependent Studies of Tidally Induced Residual Currents on the Sides of Georges Bank  

Science Conference Proceedings (OSTI)

Using a depth-dependent tidal model, the tidally induced residual currents on the northern and southern sections of Georges Bank are computed and the effects of various physical parameters on the current are examined. Because of significant on-...

Kim-Tai Tee

1985-12-01T23:59:59.000Z

296

A Numerical Study of Stratified Tidal Rectification over Finite-Amplitude Banks. Part I: Symmetric Banks  

Science Conference Proceedings (OSTI)

Tidal rectification over a two-dimensional finite-amplitude symmetrical bank is studied using the Blumberg and Mellor primitive equation coastal ocean circulation model (ECOM-si). In the homogeneous case, the nonlinear interaction of tidal ...

Changsheng Chen; Robert C. Beardsley

1995-09-01T23:59:59.000Z

297

Adaptation of Classical Tidal Harmonic Analysis to Nonstationary Tides, with Application to River Tides  

Science Conference Proceedings (OSTI)

One of the most challenging areas in tidal analysis is the study of nonstationary signals with a tidal component, as they confront both current analysis methods and dynamical understanding. A new analysis tool has been developed, NS_TIDE, adapted ...

Pascal Matte; David A. Jay; Edward D. Zaron

2013-03-01T23:59:59.000Z

298

The Cascade of Tidal Energy from Low to High Modes on a Continental Slope  

Science Conference Proceedings (OSTI)

The linear transfer of tidal energy from large to small scales is quantified for small tidal excursion over a near-critical continental slope. A theoretical framework for low-wavenumber energy transfer is derived from “flat bottom” vertical modes ...

Samuel M. Kelly; Jonathan D. Nash; Kim I. Martini; Matthew H. Alford; Eric Kunze

2012-07-01T23:59:59.000Z

299

Tidal Eulerian Residual Currents over a Slope: Analytical and Numerical Frictionless Models  

Science Conference Proceedings (OSTI)

The Eulerian residual tidal currents generated over a continental slope are examined. Using the assumption of a Poincaré wave, the linear frictionless solution of a semidiurnal tidal wave propagating from the deep ocean to a constant depth ...

Robert Mazé; Gilbert Langlois; François Grosjean

1998-07-01T23:59:59.000Z

300

Residual Currents Induced by Asymmetric Tidal Mixing in Weakly Stratified Narrow Estuaries  

Science Conference Proceedings (OSTI)

Residual currents induced by asymmetric tidal mixing were examined for weakly stratified, narrow estuaries using analytical and numerical models. The analytical model is an extension of the work of R. K. McCarthy, with the addition of tidal ...

Peng Cheng; Arnoldo Valle-Levinson; Huib E. de Swart

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

A Model of Tidal Rectification by Potential Vorticity Mixing. Part I: Homogeneous Ocean  

Science Conference Proceedings (OSTI)

In previous studies of tidal generation of mean flow over varying topography, the rectification mechanism has generally invoked bottom friction as a source of tidal flux of momentum and vorticity (hence referred as“friction” mechanism). The ...

Hsien-Wang Ou

1999-04-01T23:59:59.000Z

302

The Role of Advection, Straining, and Mixing on the Tidal Variability of Estuarine Stratification  

Science Conference Proceedings (OSTI)

Data from the Hudson River estuary demonstrate that the tidal variations in vertical salinity stratification are not consistent with the patterns associated with along-channel tidal straining. These observations result from three additional ...

Malcolm E. Scully; W. Rockwell Geyer

2012-05-01T23:59:59.000Z

303

IEC 61400-25 protocol based monitoring and control protocol for tidal current power plant  

Science Conference Proceedings (OSTI)

Wind energy and tidal current power have a common operation principle. Tidal current power converts kinetic energy of fluid to electric power. The communication infrastructure is very important to control the system and to monitor the working conditions ... Keywords: IEC 61400-25, monitoring, remote control, tidal current power

Jung Woo Kim; Hong Hee Lee

2010-09-01T23:59:59.000Z

304

Pasture and Soil Management Following Tidal Saltwater Intrusion  

E-Print Network (OSTI)

When land is flooded by saltwater, as after a hurricane tidal surge, it can long-term effects on soil productivity and fertility. This publication explains how to reclaim flooded pasture land. Having soil tested for salinity is an important step.

Provin, Tony; Redmon, Larry; McFarland, Mark L.; Feagley, Sam E.

2009-05-26T23:59:59.000Z

305

A SENSITIVITY ANALYSIS FOR A TIDALLY-INFLUENCED RIVERINE SYSTEM  

E-Print Network (OSTI)

-integrated, finite element coastal circulation code that solves the nonlinear shallow water equations, ADCIRC- 2DDI water. The model is forced with seven main tidal constituents at the open ocean boundary: M2, M4, M6, N2 entire experience at UCF; Dr. Gour-Tsyh (George) Yeh and Dr. John D. Dietz for serving on my committee

Central Florida, University of

306

TWO CHEMICAL SPILL PATTERNS IN TIDALLY DOMINATED SAN DIEGO BAY  

E-Print Network (OSTI)

6 TWO CHEMICAL SPILL PATTERNS IN TIDALLY DOMINATED SAN DIEGO BAY Peter C. Chu and Kleanthis, Inc., 70 Dean Knauss Drive, Narragansett, RI 02882, USA ABSTRACT A coupled hydrodynamic-chemical spill model is used to investigate the chemical spill in the San Diego Bay. The hydrodynamic model shows

Chu, Peter C.

307

Tidal flow over threedimensional topography generates outofforcingplane harmonics  

E-Print Network (OSTI)

energy conversion from the barotropic to the baroclinic tide. The generation of internal waves by tidal, a significant amount of the energy converted from barotropic to baroclinic tides can be generated perpendicular of a sphere, J. Fluid Mech., 183, 439­450. Baines, P. G. (2007), Internal tide generation by seamounts, Deep

Texas at Austin. University of

308

Analysis of Supercritical Stratified Tidal Flow in a Scottish Fjord  

Science Conference Proceedings (OSTI)

The baroclinic tidal regime of the fjord Loch Etive (Scotland) is studied. Analysis is performed on the basis of both in situ data and numerical simulations, with the use of a fully nonlinear nonhydrostatic fine-resolution model. It was found ...

Nataliya Stashchuk; Mark Inall; Vasiliy Vlasenko

2007-07-01T23:59:59.000Z

309

Low-head tidal power in South Carolina. Feasibility study  

DOE Green Energy (OSTI)

This report details the possibilities of extracting tidal power from sites with moderate tides and naturally occurring storage locations (estuaries). The important points covered include: available power, power extraction, and the best locations and techniques to utilize the tides in South Carolina.

Not Available

1981-12-01T23:59:59.000Z

310

Radar Measurement of Tidal Winds at Stratospheric Heights over Arecibo  

Science Conference Proceedings (OSTI)

Wind oscillations of tidal periods that showed a marked downward phase progression were detected at the lower stratosphere using the Arecibo radar. The amplitudes of 1–5 m s?1 were inferred for both diurnal and semidiurnal components, much larger ...

Shoichiro Fukao; Toru Sato; Norikazu Yamasaki; Robert M. Harper; Susumu Kato

1980-11-01T23:59:59.000Z

311

Tapping into Wave and Tidal Ocean Power: 15% Water Power by 2030 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tapping into Wave and Tidal Ocean Power: 15% Water Power by 2030 Tapping into Wave and Tidal Ocean Power: 15% Water Power by 2030 Tapping into Wave and Tidal Ocean Power: 15% Water Power by 2030 January 27, 2012 - 11:30am Addthis A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams. The East Coast, as shown above, has strong tides that could be tapped to produce energy. | Photo courtesy of Georgia Institute of Technology A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams. The East Coast, as shown above, has strong tides that could be tapped to produce energy. | Photo courtesy of Georgia Institute of Technology Hoyt Battey Water Power Market Acceleration and Deployment Team Lead, Wind and Water Power Program

312

CX-000900: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000900: Categorical Exclusion Determination An Assessment of Projected Life-Cycle Cost for Wave, Tidal, Ocean Current, and In-Stream Hydrokinetic Power in the...

313

MHK Projects/East Foreland Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

East Foreland Tidal Energy East Foreland Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":60.2223,"lon":-151.905,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

314

MHK Projects/Margate Tidal | Open Energy Information  

Open Energy Info (EERE)

Margate Tidal Margate Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3793,"lon":-74.4384,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

315

MHK Projects/Cuttyhunk Tidal Energy Plant | Open Energy Information  

Open Energy Info (EERE)

Cuttyhunk Tidal Energy Plant Cuttyhunk Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.7778,"lon":-70.8489,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

316

MHK Projects/Wrangell Narrows Tidal Energy Project | Open Energy  

Open Energy Info (EERE)

Wrangell Narrows Tidal Energy Project Wrangell Narrows Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.6324,"lon":-132.936,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

317

MHK Projects/Astoria Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Astoria Tidal Energy Astoria Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.7172,"lon":-73.9703,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

318

MHK Projects/Cohansey River Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Cohansey River Tidal Energy Cohansey River Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3829,"lon":-75.2995,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

319

MHK Projects/Dorchester Maurice Tidal | Open Energy Information  

Open Energy Info (EERE)

Dorchester Maurice Tidal Dorchester Maurice Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3262,"lon":-74.938,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

320

MHK Projects/Orient Point Tidal | Open Energy Information  

Open Energy Info (EERE)

Orient Point Tidal Orient Point Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.0748,"lon":-72.9461,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

MHK Projects/Gastineau Channel Tidal | Open Energy Information  

Open Energy Info (EERE)

Gastineau Channel Tidal Gastineau Channel Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":58.295,"lon":-134.407,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

322

MHK Projects/Highlands Tidal Energy Project | Open Energy Information  

Open Energy Info (EERE)

Tidal Energy Project Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.3432,"lon":-73.9977,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

323

MHK Projects/Paimpol Brehat tidal farm | Open Energy Information  

Open Energy Info (EERE)

Paimpol Brehat tidal farm Paimpol Brehat tidal farm < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.869,"lon":-2.98546,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

324

MHK Projects/Turnagain Arm Tidal | Open Energy Information  

Open Energy Info (EERE)

Turnagain Arm Tidal Turnagain Arm Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":60.3378,"lon":-151.875,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

325

MHK Projects/Wiscasset Tidal Energy Plant | Open Energy Information  

Open Energy Info (EERE)

Wiscasset Tidal Energy Plant Wiscasset Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.8146,"lon":-69.8697,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

326

MHK Projects/Nantucket Tidal Energy Plant | Open Energy Information  

Open Energy Info (EERE)

Nantucket Tidal Energy Plant Nantucket Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.389,"lon":-70.5134,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

327

MHK Projects/Kingsbridge Tidal Energy Project | Open Energy Information  

Open Energy Info (EERE)

Kingsbridge Tidal Energy Project Kingsbridge Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.1008,"lon":-74.0495,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

328

MHK Projects/Rockaway Tidal Energy Plant | Open Energy Information  

Open Energy Info (EERE)

Rockaway Tidal Energy Plant Rockaway Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.5667,"lon":-73.922,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

329

MHK Projects/Muskeget Channel Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Muskeget Channel Tidal Energy Muskeget Channel Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.3501,"lon":-70.3995,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

330

MHK Projects/Killisnoo Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Killisnoo Tidal Energy Killisnoo Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":57.4724,"lon":-134.56,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

331

MHK Projects/Deception Pass Tidal Energy Hydroelectric Project | Open  

Open Energy Info (EERE)

Deception Pass Tidal Energy Hydroelectric Project Deception Pass Tidal Energy Hydroelectric Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.4072,"lon":-122.643,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

332

MHK Projects/Lubec Narrows Tidal | Open Energy Information  

Open Energy Info (EERE)

Lubec Narrows Tidal Lubec Narrows Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.8652,"lon":-66.9828,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

333

MHK Projects/Housatonic Tidal Energy Plant | Open Energy Information  

Open Energy Info (EERE)

Housatonic Tidal Energy Plant Housatonic Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.2713,"lon":-73.0883,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

334

MHK Projects/Tidal Energy Project Portugal | Open Energy Information  

Open Energy Info (EERE)

Tidal Energy Project Portugal Tidal Energy Project Portugal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.702,"lon":-9.13445,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

335

MHK Projects/Treat Island Tidal | Open Energy Information  

Open Energy Info (EERE)

Treat Island Tidal Treat Island Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.0234,"lon":-67.0672,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

336

MHK Projects/Maurice River Tidal | Open Energy Information  

Open Energy Info (EERE)

Maurice River Tidal Maurice River Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3261,"lon":-74.9379,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

337

MHK Projects/Penobscot Tidal Energy Project | Open Energy Information  

Open Energy Info (EERE)

Penobscot Tidal Energy Project Penobscot Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.5404,"lon":-68.7838,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

338

MHK Projects/Cape May Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Cape May Tidal Energy Cape May Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.9668,"lon":-74.963,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

339

MHK Projects/Salem Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Salem Tidal Energy Salem Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.5739,"lon":-75.5438,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

340

MHK Projects/Angoon Tidal Energy Plant | Open Energy Information  

Open Energy Info (EERE)

Angoon Tidal Energy Plant Angoon Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":57.5034,"lon":-134.58,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

MHK Projects/Seaflow Tidal Energy System | Open Energy Information  

Open Energy Info (EERE)

Seaflow Tidal Energy System Seaflow Tidal Energy System < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.2353,"lon":-3.8356,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

342

Evolution of star clusters in arbitrary tidal fields  

E-Print Network (OSTI)

We present a novel and flexible tensor approach to computing the effect of a time-dependent tidal field acting on a stellar system. The tidal forces are recovered from the tensor by polynomial interpolation in time. The method has been implemented in a direct-summation stellar dynamics integrator (NBODY6) and test-proved through a set of reference calculations: heating, dissolution time and structural evolution of model star clusters are all recovered accurately. The tensor method is applicable to arbitrary configurations, including the important situation where the background potential is a strong function of time. This opens up new perspectives in stellar population studies reaching to the formation epoch of the host galaxy or galaxy cluster, as well as for star-burst events taking place during the merger of large galaxies. A pilot application to a star cluster in the merging galaxies NGC 4038/39 (the Antennae) is presented.

Renaud, Florent; Boily, Christian

2011-01-01T23:59:59.000Z

343

The Development of Gas/Star Offsets in Tidal Tails  

E-Print Network (OSTI)

We present models of interacting galaxies in order to study the development of spatial offsets between the gaseous and stellar components in tidal tails. Observationally, such offsets are observed to exist over large scales (e.g., NGC 3690; Hibbard et al. 2000), suggesting an interaction between the tidal gas and some (unseen) hot ISM. Instead, our models show these offsets are a natural consequence of the radially extended HI spatial distribution in disk galaxies, coupled with internal dissipation in the gaseous component driven by the interaction. This mechanism is most effective in systems involved in very prograde interactions, and explains the observed gas/star offsets in interacting galaxies without invoking interactions with a hot ISM, starburst ionization, or dust obscuration within the tails.

Chris Mihos

2000-11-06T23:59:59.000Z

344

The Development of Gas/Star Offsets in Tidal Tails  

E-Print Network (OSTI)

We present models of interacting galaxies in order to study the development of spatial offsets between the gaseous and stellar components in tidal tails. Observationally, such offsets are observed to exist over large scales (e.g., NGC 3690; Hibbard et al. 2000), suggesting an interaction between the tidal gas and some (unseen) hot ISM. Instead, our models show these offsets are a natural consequence of the radially extended HI spatial distribution in disk galaxies, coupled with internal dissipation in the gaseous component driven by the interaction. This mechanism is most effective in systems involved in very prograde interactions, and explains the observed gas/star offsets in interacting galaxies without invoking interactions with a hot ISM, starburst ionization, or dust obscuration within the tails.

Mihos, C

2001-01-01T23:59:59.000Z

345

MHK Projects/Cook Inlet Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Cook Inlet Tidal Energy Cook Inlet Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":60.6893,"lon":-151.437,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

346

MHK Projects/BW2 Tidal | Open Energy Information  

Open Energy Info (EERE)

BW2 Tidal BW2 Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3264,"lon":-74.9336,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

347

MHK Projects/Avalon Tidal | Open Energy Information  

Open Energy Info (EERE)

Avalon Tidal Avalon Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.1068,"lon":-74.7463,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

348

MHK Projects/Admirality Inlet Tidal Energy Project | Open Energy  

Open Energy Info (EERE)

Admirality Inlet Tidal Energy Project Admirality Inlet Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.1169,"lon":-122.76,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

349

EA-1949: Admiralty Inlet Pilot Tidal Project, Puget Sound, WA  

Energy.gov (U.S. Department of Energy (DOE))

This EA analyzes the potential environmental effects of a proposal by the Public Utility District No. 1 of Snowhomish County, Washington to construct and operate the Admiralty Inlet Tidal Project. The proposed 680-kilowatt project would be located on the east side of Admiralty Inlet in Puget Sound, Washington, about 1 kilometer west of Whidbey Island, entirely within Island County, Washington. The Federal Energy Regulatory Commission (FERC) is the lead agency. DOE is a cooperating agency.

350

Tidal Stream Power Web GIS Tool | Open Energy Information  

Open Energy Info (EERE)

Tidal Stream Power Web GIS Tool Tidal Stream Power Web GIS Tool Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Tidal Stream Power Web GIS Tool Agency/Company /Organization: Georgia Tech Savannah Sector: Energy Focus Area: Renewable Energy Resource Type: Software/modeling tools User Interface: Website Website: www.tidalstreampower.gatech.edu/ Country: United States Web Application Link: www.tidalstreampower.gatech.edu/ Cost: Free UN Region: Northern America Coordinates: 32.167482°, -81.212405° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.167482,"lon":-81.212405,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

351

DOE Science Showcase - Tidal Energy | OSTI, US Dept of Energy, Office of  

Office of Scientific and Technical Information (OSTI)

DOE Science Showcase - Tidal Energy DOE Science Showcase - Tidal Energy Point absorbers generate electricity by converting the energy in waves using a float that rides the waves and is attached to a moored conversion device. The Department of Energy's Water Power Program Tapping into Wave and Tidal Ocean Power: 15% Water Power by 2030, Energy.gov News Assessment of Energy Production Potential from Tidal Streams in the United States, Energy Citations Database Georgia Tech's Tidal Energy Resources Database U.S. Renewable Resources Atlas , NREL Tidal energy research in WorldWideScience.org OSTI Homepage Mobile Gallery Subscribe to RSS OSTI Blog Get Widgets Get Alert Services OSTI Facebook OSTI Twitter OSTI Google+ Bookmark and Share (Link will open in a new window) Go to Videos Loading...

352

Tidal Heating of Terrestrial Extra-Solar Planets and Implications for their Habitability  

E-Print Network (OSTI)

The tidal heating of hypothetical rocky (or terrestrial) extra-solar planets spans a wide range of values depending on stellar masses and initial orbits. Tidal heating may be sufficiently large (in many cases, in excess of radiogenic heating) and long-lived to drive plate tectonics, similar to the Earth's, which may enhance the planet's habitability. In other cases, excessive tidal heating may result in Io-like planets with violent volcanism, probably rendering them unsuitable for life. On water-rich planets, tidal heating may generate sub-surface oceans analogous to Europa's with similar prospects for habitability. Tidal heating may enhance the outgassing of volatiles, contributing to the formation and replenishment of a planet's atmosphere. To address these issues, we model the tidal heating and evolution of hypothetical extra-solar terrestrial planets. The results presented here constrain the orbital and physical properties required for planets to be habitable.

Brian Jackson; Rory Barnes; Richard Greenberg

2008-08-20T23:59:59.000Z

353

Tidal Heating of Terrestrial Extra-Solar Planets and Implications for their Habitability  

E-Print Network (OSTI)

The tidal heating of hypothetical rocky (or terrestrial) extra-solar planets spans a wide range of values depending on stellar masses and initial orbits. Tidal heating may be sufficiently large (in many cases, in excess of radiogenic heating) and long-lived to drive plate tectonics, similar to the Earth's, which may enhance the planet's habitability. In other cases, excessive tidal heating may result in Io-like planets with violent volcanism, probably rendering them unsuitable for life. On water-rich planets, tidal heating may generate sub-surface oceans analogous to Europa's with similar prospects for habitability. Tidal heating may enhance the outgassing of volatiles, contributing to the formation and replenishment of a planet's atmosphere. To address these issues, we model the tidal heating and evolution of hypothetical extra-solar terrestrial planets. The results presented here constrain the orbital and physical properties required for planets to be habitable.

Jackson, Brian; Greenberg, Richard

2008-01-01T23:59:59.000Z

354

Fracture orientation analysis by the solid earth tidal strain method | Open  

Open Energy Info (EERE)

orientation analysis by the solid earth tidal strain method orientation analysis by the solid earth tidal strain method Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Fracture orientation analysis by the solid earth tidal strain method Details Activities (1) Areas (1) Regions (0) Abstract: A new practical method has been developed to estimate subsurface fracture orientation based on an analysis of solid earth tidal strains. The tidal strain fracture orientation technique is a passive method which has no depth limitation. The orientation of either natural or hydraulically stimulated fractures can be measured using either new or old static observation wells. Estimates for total compressibility and areal interconnected porosity can also be developed for reservoirs with matrix permeability using a combination of tidal and barometric strain analysis.

355

MHK Technologies/Uldolmok Pilot Tidal Current Power Plant | Open Energy  

Open Energy Info (EERE)

Uldolmok Pilot Tidal Current Power Plant Uldolmok Pilot Tidal Current Power Plant < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Uldolmok Pilot Tidal Current Power Plant.jpg Technology Profile Primary Organization Korea East West Power Co LTD Technology Resource Click here Current Technology Type Click here Overtopping Technology Readiness Level Click here TRL 9 Commercial Scale Production Application Technology Description The tidal current power plant uses current energy that can be differentiated from a typical tidal power plant using marine energy The latter confines water in a dam and when released it gets processed in a turbine to produce electric power The tidal current power plant on the other hand does not need a dam thus concerns of social dislocations and degradation of ecosystems primarily endangering marine life can be avoided

356

Assessment of Strike of Adult Killer Whales by an OpenHydro Tidal Turbine Blade  

SciTech Connect

Report to DOE on an analysis to determine the effects of a potential impact to an endangered whale from tidal turbines proposed for deployment in Puget Sound.

Carlson, Thomas J.; Elster, Jennifer L.; Jones, Mark E.; Watson, Bruce E.; Copping, Andrea E.; Watkins, Michael L.; Jepsen, Richard A.; Metzinger, Kurt

2012-02-01T23:59:59.000Z

357

Hierarchical phase space structure of dark matter haloes: Tidal debris, caustics, and dark matter annihilation  

E-Print Network (OSTI)

Most of the mass content of dark matter haloes is expected to be in the form of tidal debris. The density

Bertschinger, Edmund

358

Modeling the Limits and Effects of Energy?Extraction from Tidal...  

NLE Websites -- All DOE Office Websites (Extended Search)

agree well with analytical solution by Garrett & Cummins (2004, 2005) Extractable Max Power Function of (tidal amplitude, volume flux) P model 2,154 MW; P analytical ...

359

Earth Tidal Analysis At Salton Sea Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

80) 80) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At Salton Sea Geothermal Area (1980) Exploration Activity Details Location Salton Sea Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the reservoir response to tidal and barometric effects Notes Porosity-total compressibility product evaluation based on tidal strain response compares favorably with results based on conventional pumping techniques. Analysis of reservoir response to barometric loading using Auto Regressive Integrated Moving Average (ARIMA) stochastic modeling appears also to have potential use for the evaluation of reservoir parameters.

360

List of Tidal Energy Incentives | Open Energy Information  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 538 Tidal Energy Incentives. CSV (rows 1-500) CSV (rows 501-538) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Abatement of Air Pollution: Control of Carbon Dioxide Emissions/Carbon Dioxide Budget Trading Program (Connecticut) Environmental Regulations Connecticut Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Biomass/Biogas

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Effects of Electromagnetic Fields on Fish and Invertebrates Task 2.1.3: Effects on Aquatic Organisms Fiscal Year 2012 Progress Report Environmental Effects of Marine and Hydrokinetic Energy  

SciTech Connect

Energy generated by the world’s oceans and rivers offers the potential to make substantial contributions to the domestic and global renewable energy supply. However, the marine and hydrokinetic (MHK) energy industry faces challenges related to siting, permitting, construction, and operation of pilotand commercial-scale facilities. One of the challenges is to understand the potential effects to marine organisms from electromagnetic fields, which are produced as a by-product of transmitting power from offshore to onshore locations through underwater transmission cables. This report documents the progress of the third year of research (fiscal year 2012) to investigate environmental issues associated with marine and hydrokinetic energy (MHK) generation. This work was conducted by Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy’s (DOE’s) Office of Energy Efficiency and Renewable Energy (EERE) Wind and Water Technologies Office. The report addresses the effects of electromagnetic fields (EMFs) on selected marine species where significant knowledge gaps exist. The species studied this fiscal year included one fish and two crustacean species: the Atlantic halibut (Hippoglossus hippoglossus), Dungeness crab (Metacarcinus magister), and American lobster (Homarus americanus).

Woodruff, Dana L.; Cullinan, Valerie I.; Copping, Andrea E.; Marshall, Kathryn E.

2013-05-20T23:59:59.000Z

362

An HI Threshold for Star Cluster Formation in Tidal Debris  

E-Print Network (OSTI)

Super star clusters are young, compact star clusters found in the central regions of interacting galaxies. Recently, they have also been reported to preferentially form in certain tidal tails, but not in others. In this paper, we have used 21 cm HI maps and the Hubble Space Telescope Wide Field Planetary Camera 2 images of eight tidal tail regions of four merging galaxy pairs to compare the kiloparsec scale HI distribution with the location of super star clusters found from the optical images. For most of the tails, we find that there is an increase in super star cluster density with increasing projected HI column density, such that the star cluster density is highest when log N(HI) >= 20.6 cm^{-2}, but equal to the background count rate at lower HI column density. However, for two tails (NGC 4038/39 Pos A and NGC 3921), there is no significant star cluster population despite the presence of gas at high column density. This implies that the N(HI) threshold is a necessary but not sufficient condition for clust...

Maybhate, A; Hibbard, J E; Charlton, J C; Palma, C; Knierman, K A; English, J

2007-01-01T23:59:59.000Z

363

An HI Threshold for Star Cluster Formation in Tidal Debris  

E-Print Network (OSTI)

Super star clusters are young, compact star clusters found in the central regions of interacting galaxies. Recently, they have also been reported to preferentially form in certain tidal tails, but not in others. In this paper, we have used 21 cm HI maps and the Hubble Space Telescope Wide Field Planetary Camera 2 images of eight tidal tail regions of four merging galaxy pairs to compare the kiloparsec scale HI distribution with the location of super star clusters found from the optical images. For most of the tails, we find that there is an increase in super star cluster density with increasing projected HI column density, such that the star cluster density is highest when log N(HI) >= 20.6 cm^{-2}, but equal to the background count rate at lower HI column density. However, for two tails (NGC 4038/39 Pos A and NGC 3921), there is no significant star cluster population despite the presence of gas at high column density. This implies that the N(HI) threshold is a necessary but not sufficient condition for cluster formation. Gas volume density is likely to provide a more direct criterion for cluster formation, and other factors such as gas pressure or strength of encounter may also have an influence. Comparison of HI thresholds needed for formation of different types of stellar structures await higher resolution HI and optical observations of larger numbers of interacting galaxies.

A. Maybhate; J. Masiero; J. E. Hibbard; J. C. Charlton; C. Palma; K. A. Knierman; J. English

2007-07-24T23:59:59.000Z

364

RED CLUMP STARS IN THE SAGITTARIUS TIDAL STREAMS  

SciTech Connect

We have probed a section (l {approx} 150, b {approx} -60) of the trailing tidal arm of the Sagittarius dwarf spheroidal galaxy by identifying a sample of Red Clump (RC) stream stars. RC stars are not generally found in the halo field, but are found in significant numbers in both the Sagittarius galaxy and its tidal streams, making them excellent probes of stream characteristics. Our target sample was selected using photometric data from the Sloan Digital Sky Survey, Data Release 6, which was constrained in color to match the Sagittarius RC stars. Spectroscopic observations of the target stars were conducted at Kitt Peak National Observatory using the WIYN telescope. The resulting spectroscopic sample is magnitude limited and contains both main-sequence disk stars and evolved RC stars. We have developed a method to systematically separate these two stellar classes using kinematic information and a Bayesian approach for surface gravity determination. The resulting RC sample allows us to determine an absolute stellar density of {rho} = 2.7 {+-} 0.5 RC stars kpc{sup -3} at this location in the stream. Future measurements of stellar densities for a variety of populations and at various locations along the streams will lead to a much improved understanding of the original nature of the Sagittarius galaxy and the physical processes controlling its disruption and subsequent stream generation.

Carrell, Kenneth; Chen Yuqin [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Wilhelm, Ronald, E-mail: carrell@nao.cas.cn [Physics and Astronomy Department, University of Kentucky, Lexington, KY 40506 (United States)

2012-07-15T23:59:59.000Z

365

Numerical simulation and analysis to tidal currents and wave field of pearl river  

Science Conference Proceedings (OSTI)

A hydrodynamic model (MOCOE) is used in tidal current and wave calculation in Yamen river, which is one of the eight estuaries of Pearl River. The method of combining curvilinear orthogonal coordinates in the horizontal direction with Sigma mapping coordinates ... Keywords: curvilinear orthogonal, numerical simulation, tidal currents

Wu Hongxu

2009-11-01T23:59:59.000Z

366

ADCP Measurements of Momentum Balance and Dynamic Topography in a Constricted Tidal Channel  

Science Conference Proceedings (OSTI)

The dynamics of tidal flow through inlets are not fully understood; observations are scarce because of the small spatial scales over which the flow varies. This paper gives the first detailed measurements of the 2D structure of tidal currents and ...

Ross Vennell

2006-02-01T23:59:59.000Z

367

Mapping the tidal motion of an Antarctic ice shelf from space  

E-Print Network (OSTI)

grounded and floating ice). Loss of clarity of phase cycles (noise) ­ likely due to changes on the ice-eyes" suggests a ridgeline is running under the ice. The phase (colour) cycles represent the difference in tidalMapping the tidal motion of an Antarctic ice shelf from space Malcolm McMillan1 , Andrew Shepherd

368

Tidal Energy Dissipation at the Sill of Sechelt Inlet, British Columbia  

Science Conference Proceedings (OSTI)

The energy budget of a tidally active, shallow silled fjord is discussed. Constriction of the flow over the shallow sill causes a reduction in tidal amplitude and a phase lag across the sill. A generalized expression for the total power extracted ...

Scott W. Tinis; Stephen Pond

2001-12-01T23:59:59.000Z

369

Transport and Resuspension of Fine Particles in a Tidal Boundary Layer near a Small Peninsula  

Science Conference Proceedings (OSTI)

The authors present a theory on the transport and resuspension of fine particles in a tidal boundary layer when the ambient tidal flow is nonuniform due to a peninsula along the coastline. As a first step toward better physical understanding the ...

Chiang C. Mei; Chimin Chian; Feng Ye

1998-11-01T23:59:59.000Z

370

Cyclonic Spirals in Tidally Accelerating Bottom Boundary Layers in the Zhujiang (Pearl River) Estuary  

Science Conference Proceedings (OSTI)

A velocity spiral in the tidally accelerating bottom boundary layer (BBL) was defined as a directional shear of the prevailing flow with the elevation and the tidal phase. However, so far there is no information on the spiral for the oscillatory ...

Jiaxue Wu; Huan Liu; Jie Ren; Junjie Deng

2011-06-01T23:59:59.000Z

371

Maine Project Takes Historic Step Forward in U.S. Tidal Energy Deployment |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maine Project Takes Historic Step Forward in U.S. Tidal Energy Maine Project Takes Historic Step Forward in U.S. Tidal Energy Deployment Maine Project Takes Historic Step Forward in U.S. Tidal Energy Deployment May 4, 2012 - 12:11pm Addthis Cobscook Bay, Maine, is the site of a tidal energy pilot project led by Ocean Renewable Power Company. | Photo courtesy of Ocean Renewable Power Company. Cobscook Bay, Maine, is the site of a tidal energy pilot project led by Ocean Renewable Power Company. | Photo courtesy of Ocean Renewable Power Company. Hoyt Battey Water Power Market Acceleration and Deployment Team Lead, Wind and Water Power Program What does this project do? ORPC will deploy cross flow turbine devices in Cobscook Bay, at the mouth of the Bay of Fundy. These devices are designed to generate electricity over a range of

372

Energy Department Invests $16 Million to Harness Wave and Tidal Energy |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 Million to Harness Wave and Tidal 6 Million to Harness Wave and Tidal Energy Energy Department Invests $16 Million to Harness Wave and Tidal Energy August 29, 2013 - 2:35pm Addthis News Media Contact (202) 586-4940 WASHINGTON - As part of the Obama Administration's all-of-the-above strategy to deploy every available source of American energy, the Energy Department today announced $16 million for seventeen projects to help sustainably and efficiently capture energy from waves, tides and currents. Together, these projects will increase the power production and reliability of wave and tidal devices and help gather valuable data on how deployed devices interact with the surrounding environment. "Wave and tidal energy represent a large, untapped resource for the United States and responsible development of this clean, renewable energy

373

Earth Tidal Analysis At Raft River Geothermal Area (1982) | Open Energy  

Open Energy Info (EERE)

Tidal Analysis At Raft River Geothermal Area Tidal Analysis At Raft River Geothermal Area (1982) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1982 Usefulness not indicated DOE-funding Unknown Exploration Basis To estimate subsurface fracture orientation based on an analysis of solid earth tidal strains. Notes A new practical method has been developed. The tidal strain fracture orientation technique is a passive method which has no depth limitation. The orientation of either natural or hydraulically stimulated fractures can be measured using either new or old static observation wells. Estimates for total compressibility and areal interconnected porosity can also be developed for reservoirs with matrix permeability using a combination of

374

Energy Department Invests $16 Million to Develop Wave and Tidal Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 Million to Develop Wave and Tidal 6 Million to Develop Wave and Tidal Energy Technologies Energy Department Invests $16 Million to Develop Wave and Tidal Energy Technologies August 29, 2013 - 12:00pm Addthis Image of machinery to generate energy using tides. As part of the Obama Administration's all-of-the-above strategy to deploy every available source of American energy, the Energy Department today announced $16 million for seventeen projects to help sustainably and efficiently capture energy from waves, tides, and currents. Together, these projects will increase the power production and reliability of wave and tidal devices and help gather valuable data on how deployed devices interact with the surrounding environment. "Wave and tidal energy represent a large, untapped resource for the United

375

Gravitational signals due to tidal interactions between white dwarfs and black holes  

E-Print Network (OSTI)

In this paper we compute the gravitational signal emitted when a white dwarf moves around a black hole on a closed or open orbit using the affine model approach. We compare the orbital and the tidal contributions to the signal, assuming that the star moves in a safe region where, although very close to the black hole, the strength of the tidal interaction is insufficient to provoque the stellar disruption. We show that for all considered orbits the tidal signal presents sharp peaks corresponding to the excitation of the star non radial oscillation modes, the amplitude of which depends on how deep the star penetrates the black hole tidal radius and on the type of orbit. Further structure is added to the emitted signal by the coupling between the orbital and the tidal motion.

C. Casalvieri; V. Ferrari; A. Stavridis

2005-08-08T23:59:59.000Z

376

Gravitational signals due to tidal interactions between white dwarfs and black holes  

E-Print Network (OSTI)

In this paper we compute the gravitational signal emitted when a white dwarf moves around a black hole on a closed or open orbit using the affine model approach. We compare the orbital and the tidal contributions to the signal, assuming that the star moves in a safe region where, although very close to the black hole, the strength of the tidal interaction is insufficient to provoque the stellar disruption. We show that for all considered orbits the tidal signal presents sharp peaks corresponding to the excitation of the star non radial oscillation modes, the amplitude of which depends on how deep the star penetrates the black hole tidal radius and on the type of orbit. Further structure is added to the emitted signal by the coupling between the orbital and the tidal motion.

Casalvieri, C; Stavridis, A

2006-01-01T23:59:59.000Z

377

Maine Project Takes Historic Step Forward in U.S. Tidal Energy Deployment |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maine Project Takes Historic Step Forward in U.S. Tidal Energy Maine Project Takes Historic Step Forward in U.S. Tidal Energy Deployment Maine Project Takes Historic Step Forward in U.S. Tidal Energy Deployment May 4, 2012 - 12:11pm Addthis Cobscook Bay, Maine, is the site of a tidal energy pilot project led by Ocean Renewable Power Company. | Photo courtesy of Ocean Renewable Power Company. Cobscook Bay, Maine, is the site of a tidal energy pilot project led by Ocean Renewable Power Company. | Photo courtesy of Ocean Renewable Power Company. Hoyt Battey Water Power Market Acceleration and Deployment Team Lead, Wind and Water Power Program What does this project do? ORPC will deploy cross flow turbine devices in Cobscook Bay, at the mouth of the Bay of Fundy. These devices are designed to generate electricity over a range of

378

MHK Technologies/MORILD 2 Floating Tidal Power System | Open Energy  

Open Energy Info (EERE)

MORILD 2 Floating Tidal Power System MORILD 2 Floating Tidal Power System < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage MORILD 2 Floating Tidal Power System.jpg Technology Profile Primary Organization Hydra Tidal Energy Technology AS Project(s) where this technology is utilized *MHK Projects/Morild 2 Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 7/8: Open Water System Testing & Demonstration & Operation Technology Description Hydra Tidal´s Morild II tidal power plant technology at-a-glance: - A unique and patented floating tidal power plant - Prototype has an installed effect of 1,5 MW - Turbine diameter of 23 meters - Each turbine is pitchable - 4 turbines with a total of 8 turbine blades - Unique wooden turbine blades - The MORILD II can be anchored at different depths, thus it can be positioned in spots with ideal tidal stream conditions - The plant carries a sea vessel verification, and is both towable and dockable - The floating installation enables maintenance in surface position, and on site - The MORILD II will be remotely operated, and has on-shore surveillance systems - Technology patented for all relevant territories The Morild power plant is a floating, moored construction based on the same principle as horizontal axis wind turbines. The plant has 4 two-blade underwater turbines and can utilize the energy potential in tidal and ocean currents. The 4 turbines transmit power via hydraulic transmission to 2 synchronous generators. Can be pitched 180 degrees to utilize energy in both directions. A cable from the transformer on the prototype to shore transfers energy.

379

OPTICAL DISCOVERY OF PROBABLE STELLAR TIDAL DISRUPTION FLARES  

SciTech Connect

Using archival Sloan Digital Sky Survey (SDSS) multi-epoch imaging data (Stripe 82), we have searched for the tidal disruption of stars by supermassive black holes in non-active galaxies. Two candidate tidal disruption events (TDEs) are identified. The TDE flares have optical blackbody temperatures of 2 Multiplication-Sign 10{sup 4} K and observed peak luminosities of M{sub g} = -18.3 and -20.4 ({nu}L{sub {nu}} = 5 Multiplication-Sign 10{sup 42}, 4 Multiplication-Sign 10{sup 43} erg s{sup -1}, in the rest frame); their cooling rates are very low, qualitatively consistent with expectations for tidal disruption flares. The properties of the TDE candidates are examined using (1) SDSS imaging to compare them to other flares observed in the search, (2) UV emission measured by GALEX, and (3) spectra of the hosts and of one of the flares. Our pipeline excludes optically identifiable AGN hosts, and our variability monitoring over nine years provides strong evidence that these are not flares in hidden AGNs. The spectra and color evolution of the flares are unlike any SN observed to date, their strong late-time UV emission is particularly distinctive, and they are nuclear at high resolution arguing against these being first cases of a previously unobserved class of SNe or more extreme examples of known SN types. Taken together, the observed properties are difficult to reconcile with an SN or an AGN-flare explanation, although an entirely new process specific to the inner few hundred parsecs of non-active galaxies cannot be excluded. Based on our observed rate, we infer that hundreds or thousands of TDEs will be present in current and next-generation optical synoptic surveys. Using the approach outlined here, a TDE candidate sample with O(1) purity can be selected using geometric resolution and host and flare color alone, demonstrating that a campaign to create a large sample of TDEs, with immediate and detailed multi-wavelength follow-up, is feasible. A by-product of this work is quantification of the power spectrum of extreme flares in AGNs.

Van Velzen, Sjoert; Farrar, Glennys R. [Center for Cosmology and Particle Physics, New York University, NY 10003 (United States); Gezari, Suvi [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218 (United States); Morrell, Nidia [Carnegie Observatories, Las Campanas Observatory, Casillas 601, La Serena (Chile); Zaritsky, Dennis [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Oestman, Linda [Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Barcelona) (Spain); Smith, Mathew [Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch, 7701 (South Africa); Gelfand, Joseph [New York University-Abu Dhabi, Abu Dhabi (United Arab Emirates); Drake, Andrew J., E-mail: s.vanvelzen@astro.ru.nl [Center for Advance Computing Research, California Institute of Technology, Pasadena, CA 91225 (United States)

2011-11-10T23:59:59.000Z

380

Tidal disruption flares from stars on eccentric orbits  

E-Print Network (OSTI)

We study tidal disruption and subsequent mass fallback for stars approaching supermassive black holes on bound orbits, by performing three dimensional Smoothed Particle Hydrodynamics simulations with a pseudo-Newtonian potential. We find that the mass fallback rate decays with the expected -5/3 power of time for parabolic orbits, albeit with a slight deviation due to the self-gravity of the stellar debris. For eccentric orbits, however, there is a critical value of the orbital eccentricity, significantly below which all of the stellar debris is bound to the supermassive black hole. All the mass therefore falls back to the supermassive black hole in a much shorter time than in the standard, parabolic case. The resultant mass fallback rate considerably exceeds the Eddington accretion rate and substantially differs from the -5/3 power of time.

Kimitake Hayasaki; Nicholas Stone; Abraham Loeb

2012-10-03T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Observing Lense-Thirring Precession in Tidal Disruption Flares  

E-Print Network (OSTI)

When a star is tidally disrupted by a supermassive black hole (SMBH), the streams of liberated gas form an accretion disk after their return to pericenter. We demonstrate that Lense-Thirring precession in the spacetime around a rotating SMBH can produce significant time evolution of the disk angular momentum vector, due to both the periodic precession of the disk and the nonperiodic, differential precession of the bound debris streams. Jet precession and periodic modulation of disk luminosity are possible consequences. The persistence of the jetted X-ray emission in the Swift J164449.3+573451 flare suggests that the jet axis was aligned with the spin axis of the SMBH during this event.

Nicholas Stone; Abraham Loeb

2011-09-29T23:59:59.000Z

382

Evaluation of subsurface fracture geometry using fluid pressure response to solid earth tidal strain  

DOE Green Energy (OSTI)

The nature of solid earth tidal strain and surface load deformation due to the influence of gravitational forces and barometric pressure loading are discussed. The pore pressure response to these types of deformation is investigated in detail, including the cases of a confined aquifer intersected by a well and a discrete fracture intersected by a well. The integration of the tidal response method with conventional pump tests in order to independently calculate the hydraulic parameters of the fracture-formation system is discussed. How advanced spectral analysis methods, coupled with correlation analysis can be used to extract the tidal response signals from the pressure record is shown. Uncertainties in the signals are estimated using various information-theoretic methods in order to place a confidence level at which we can safely assume that the measured signal is indeed of tidal origin. A detailed case study of the method carried out at the Raft River Geothermal Reservoir in Idaho is presented. All of the analyzed tidal data is presented and the results of the computed fracture orientation using the solid earth tidal strain approach are compared with the extensive field work carried out at Raft River over the past decade. The direction that future work in the continuing development of this technology should take is discussed, including: (1) the present need for an expanded data base for the confirmation of present tidal strain response models, and (2) improvement in response models.

Hanson, J.M.

1984-09-01T23:59:59.000Z

383

EA-1916: Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

16: Ocean Renewable Power Company Maine, LLC Cobscook Bay 16: Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot Project, Cobscook in Washington County, Maine EA-1916: Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot Project, Cobscook in Washington County, Maine Summary This EA evaluates the environmental impacts of a project that would use the tidal currents of Cobscook Bay to generate electricity via cross-flow Kinetic System turbine generator units (TGU) mounted on the seafloor. The TGUs would capture energy from the flow in both ebb and flood directions. Public Comment Opportunities None available at this time. Documents Available for Download March 19, 2012 EA-1916: Finding of No Significant Impact Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot

384

Coastal Countercurrent and Mesoscale Eddy Formation by Tidal Rectification near an Oceanic Cape  

Science Conference Proceedings (OSTI)

Cape St. James is an extensive triangular-shaped promontory located in a tidally energetic region at the southern tip of the Queen Charlotte Islands approximately 150 km off the mainland coast or British Columbia. Several years of oceanographic ...

Richard E. Thomson; Robert E. Wilson

1987-11-01T23:59:59.000Z

385

Regulation of Tidal and Wave Energy Projects (Maine) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tidal and Wave Energy Projects (Maine) Tidal and Wave Energy Projects (Maine) Regulation of Tidal and Wave Energy Projects (Maine) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Water Buying & Making Electricity Program Info State Maine Program Type Siting and Permitting Provider Department of Environmental Protection State regulation of tidal and wave energy projects is covered under the Maine Waterway Development and Conservation Act (MWDCA), and complements

386

Form Drag and Mixing Due to Tidal Flow past a Sharp Point  

Science Conference Proceedings (OSTI)

Barotropic tidal currents flowing over rough topography may be slowed by two bottom boundary–related processes: tangential stress of the bottom boundary layer, which is generally well represented by a quadratic drag law, and normal stress from ...

Kathleen A. Edwards; Parker MacCready; James N. Moum; Geno Pawlak; Jody M. Klymak; Alexander Perlin

2004-06-01T23:59:59.000Z

387

Optimal Control Theory Applied to an Objective Analysis of a Tidal Current Mapping by HF Radar  

Science Conference Proceedings (OSTI)

Optimal control can provide a tool to perform an optimization of a tidal model via a data assimilation operation. A pilot study is presented here to test the theoretical and numerical feasibility of an assimilation of HF radar current ...

Jean-Luc Devenon

1990-04-01T23:59:59.000Z

388

The Effect of Channel Length on the Residual Circulation in Tidally Dominated Channels  

Science Conference Proceedings (OSTI)

With an analytic model, this paper describes the subtidal circulation in tidally dominated channels of different lengths, with arbitrary lateral depth variations. The focus is on an important parameter associated with the reversal of the exchange ...

Chunyan Li; James O’Donnell

2005-10-01T23:59:59.000Z

389

Internal Hydraulic Jumps and Overturning Generated by Tidal Flow over a Tall Steep Ridge  

Science Conference Proceedings (OSTI)

Recent observations from the Hawaiian Ridge indicate episodes of overturning and strong dissipation coupled with the tidal cycle near the top of the ridge. Simulations with realistic topography and stratification suggest that this overturning has ...

Sonya Legg; Jody Klymak

2008-09-01T23:59:59.000Z

390

Surface Pressure Response to Elevated Tidal Heating Sources: Comparison of Earth and Mars  

Science Conference Proceedings (OSTI)

Modern atmospheric tidal theory has shown that the dominance of the terrestrial semidiurnal surface pressure oscillation, relative to its diurnal counterpart, is the result of the elevated heating source generated by solar heating of ...

Richard W. Zurek

1980-05-01T23:59:59.000Z

391

Spectral Estimates of Gravity Wave Energy and Momentum Fluxes. Part III: Gravity Wave-Tidal Interactions  

Science Conference Proceedings (OSTI)

An application of the gravity wave parameterization scheme developed in the companion papers by Fritts and VanZandt and Fritts and Lu to the mutual interaction of gravity waves and tidal motions is presented. The results suggest that interaction ...

Wentong Lu; David C. Fritts

1993-11-01T23:59:59.000Z

392

Tidal Mixing Events on the Deep Flanks of Kaena Ridge, Hawaii  

Science Conference Proceedings (OSTI)

A 3-month mooring deployment (August–November 2002) was made in 2425-m depth, on the south flank of Kaena Ridge, Hawaii, to examine tidal variations within 200 m of the steeply sloping bottom. Horizontal currents and vertical displacements, ...

Jerome Aucan; Mark A. Merrifield; Douglas S. Luther; Pierre Flament

2006-06-01T23:59:59.000Z

393

Tidally Forced Internal Waves and Overturns Observed on a Slope: Results from HOME  

Science Conference Proceedings (OSTI)

Tidal mixing over a slope was explored using moored time series observations on Kaena Ridge extending northwest from Oahu, Hawaii, during the Survey component of the Hawaii Ocean Mixing Experiment (HOME). A mooring was instrumented to sample the ...

Murray D. Levine; Timothy J. Boyd

2006-06-01T23:59:59.000Z

394

Residual Sediment Fluxes in Weakly-to-Periodically Stratified Estuaries and Tidal Inlets  

Science Conference Proceedings (OSTI)

In this idealized numerical modeling study, the composition of residual sediment fluxes in energetic (e.g., weakly or periodically stratified) tidal estuaries is investigated by means of one-dimensional water column models, with some focus on the ...

Hans Burchard; Henk M. Schuttelaars; W. Rockwell Geyer

2013-09-01T23:59:59.000Z

395

A Numerical Study of Stratified Tidal Rectification over Finite-Amplitude Banks. Part II: Georges Bank  

Science Conference Proceedings (OSTI)

Tidal rectification over an idealized two-dimensional cross section of Georges Bank, which is a large, shallow, elongated submarine bank in the Gulf of Maine, is studied using a primitive equation coastal ocean circulation model. In the ...

Changsheng Chen; Robert C. Beardsley; Richard Limeburner

1995-09-01T23:59:59.000Z

396

Singular Spectrum Analysis of Nonstationary Tidal Currents Applied to ADCP Data from the Northeast Brazilian Shelf  

Science Conference Proceedings (OSTI)

The development of new tools for the analysis of nonstationary currents, including tidal currents, has been the subject of recent research. In this work a method for studies of nonstationary barotropic or baroclinic currents based on empirical ...

Marcio L. Vianna; Viviane V. Menezes

2006-01-01T23:59:59.000Z

397

Observed and Computed M2 Tidal Currents in the North Sea  

Science Conference Proceedings (OSTI)

M2 tidal elevations and currents have been computed using a three-dimensional hydrodynamic numerical model of the northwest European shelf. These have been compared with observational data from tide gages and current meter rigs moored in ...

A. M. Davies; G. K. Furnes

1980-02-01T23:59:59.000Z

398

The Harmonic Constant Datum Method: Options for Overcoming Datum Discontinuities at Mixed–Diurnal Tidal Transitions  

Science Conference Proceedings (OSTI)

The harmonic constant datum (HCD) method is a computationally efficient way of estimating tidal datums relative to mean sea level, without the need to compute long time series. However, datum discontinuities can occur between mixed and diurnal ...

Harold O. Mofjeld; Angie J. Venturato; Frank I. González; Vasily V. Titov; Jean C. Newman

2004-01-01T23:59:59.000Z

399

Using a Broadband ADCP in a Tidal Channel. Part I: Mean Flow and Shear  

Science Conference Proceedings (OSTI)

This paper discusses the principles of measuring the mean velocity and its vertical shear in a turbulent flow using an acoustic Doppler current profiler (ADCP), and presents an analysis of data gathered in a tidal channel. The assumption of ...

Youyu Lu; Rolf G. Lueck

1999-11-01T23:59:59.000Z

400

Fog and Tidal Current Connection at Cape Cod Canal—Early Recognition and Recent Measurements  

Science Conference Proceedings (OSTI)

Notes by Gardner Emmons about the initiation of low advective fogs on Cape Cod are presented. Subsequent measurements made in these fogs confirm his suggestion that mixing and temperature changes associated with tidal currents account for the ...

Alfred H. Woodcock

1982-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Analysis of Tidal Straining as Driver for Estuarine Circulation in Well-Mixed Estuaries  

Science Conference Proceedings (OSTI)

Tidal straining, which can mathematically be described as the covariance between eddy viscosity and vertical shear of the along-channel velocity component, has been acknowledged as one of the major drivers for estuarine circulation in channelized ...

Hans Burchard; Henk M. Schuttelaars

2012-02-01T23:59:59.000Z

402

The Interaction of Tides with the Sill of a Tidally Energetic Inlet  

Science Conference Proceedings (OSTI)

The interaction of the tides with the sill of a tidally energetic inlet, Observatory Inlet, British Columbia, is studied. Because of temporal variations in the stratification of the inlet, a substantial seasonal variation is observed in the power ...

Michael W. Stacey

1984-06-01T23:59:59.000Z

403

Aspects of the Tidal Variability Observed on the Southern California Continental Shelf  

Science Conference Proceedings (OSTI)

Observations of the current and temperature field from the southern California continental shelf are analyzed in a frequency band (0.6–6 cpd) dominated by tidal fluctuations. The seasonal variability of the temperature and horizontal velocity ...

A. Bratkovich

1985-03-01T23:59:59.000Z

404

Topographic Rectification of Tidal Currents on the Sides of Georges Bank  

Science Conference Proceedings (OSTI)

The rectification of M2 tidal currents on the sloping sides of Georges Bank is predicted to make an important year-round contribution to its observed mean clockwise circulation. A rectification mechanism involving continuity and Coriolis effects, ...

John W. Loder

1980-09-01T23:59:59.000Z

405

A Study of Tidal Energy Dissipation and Bottom Stress in an Estuary  

Science Conference Proceedings (OSTI)

A Method for inferring an area-averaged bottom stress and energy dissipation rate in a tidal estuarine channel is presented. The one-dimensional continuity and momentum relations are developed using simplifying assumptions appropriate for a well-...

Wendell S. Brown; Richard P. Trask

1980-11-01T23:59:59.000Z

406

The Cycle of Turbulent Dissipation in the Presence of Tidal Straining  

Science Conference Proceedings (OSTI)

In regions of large horizontal density gradient, tidal straining acts to produce a periodic component of stratification that interacts with turbulent mixing to control water column structure and flow. A 25-h series of measurements of the rate of ...

Tom P. Rippeth; Neil R. Fisher; John H. Simpson

2001-08-01T23:59:59.000Z

407

Status of Wave and Tidal Power Technologies for the United States  

DOE Green Energy (OSTI)

This paper presents the status of marine applications for renewable energy as of 2008 from a U.S. perspective. Technologies examined include wave, tidal, and ocean current energy extraction devices.

Musial, W.

2008-08-01T23:59:59.000Z

408

The Signature of Inertial and Tidal Currents in Offshore Wave Records  

Science Conference Proceedings (OSTI)

The roughness of the sea surface can be affected by strong currents. Here, long records of surface wave heights from buoy observations in the northeastern Pacific Ocean are examined. The data show the influence of tidal currents, but the first ...

Johannes Gemmrich; Chris Garrett

2012-06-01T23:59:59.000Z

409

A Model of the Tidally Induced Residual Circulation in the Gulf of Maine and Georges Bank  

Science Conference Proceedings (OSTI)

A three-dimensional nonlinear numerical hydrodynamic model using Legendre polynomials to represent the vertical structure of the horizontal currents has been used to study the tidally induced residual flows in the Gulf of Maine–Georges Bank study ...

Tatsusaburo Isaji; Malcolm L. Spaulding

1984-06-01T23:59:59.000Z

410

General Spectral Computations of the Nonlinear Shallow Water Tidal Interactions within the Bight of Abaco  

Science Conference Proceedings (OSTI)

An iterative frequency–time domain finite element tidal circulation model is applied to the Bight of Abaco in the Bahamas to study the nonlinear interactions that occur between the various astronomical, overtide and compound-tide constituents. ...

J. J. Westerink; K. D. Stolzenbach; J. J. Connor

1989-09-01T23:59:59.000Z

411

Abyssal Penetration and Bottom Reflection of Internal Tidal Energy in the Bay of Biscay  

Science Conference Proceedings (OSTI)

This paper describes field observations in the Bay of Biscay, and presents convincing evidence for the existence of a broad beam of internal tidal energy propagating downward from a source region on the upper continental slopes, which, after ...

R. D. Pingree; A. L. New

1991-01-01T23:59:59.000Z

412

A Comparison of Georges Bank, Gulf of Maine and New England Shelf Tidal Dynamics  

Science Conference Proceedings (OSTI)

The semidiurnal tidal currents associated with the near-resonant response of the Gulf of Maine-Bay of Fundy system are amplified over the relatively shallow depths of Georges Bank, thus leading to enhanced energy dissipation, vertical mixing and ...

Wendell S. Brown

1984-01-01T23:59:59.000Z

413

EA-1916: Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1916: Ocean Renewable Power Company Maine, LLC Cobscook Bay 1916: Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot Project, Cobscook in Washington County, Maine EA-1916: Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot Project, Cobscook in Washington County, Maine Summary This EA evaluates the environmental impacts of a project that would use the tidal currents of Cobscook Bay to generate electricity via cross-flow Kinetic System turbine generator units (TGU) mounted on the seafloor. The TGUs would capture energy from the flow in both ebb and flood directions. Public Comment Opportunities None available at this time. Documents Available for Download March 19, 2012 EA-1916: Finding of No Significant Impact Ocean Renewable Power Company Maine, LLC Cobscook Bay Tidal Energy Pilot

414

EA-1949: Admiralty Inlet Pilot Tidal Project, Puget Sound, WA | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

49: Admiralty Inlet Pilot Tidal Project, Puget Sound, WA 49: Admiralty Inlet Pilot Tidal Project, Puget Sound, WA EA-1949: Admiralty Inlet Pilot Tidal Project, Puget Sound, WA SUMMARY This EA analyzes the potential environmental effects of a proposal by the Public Utility District No. 1 of Snowhomish County, Washington to construct and operate the Admiralty Inlet Tidal Project. The proposed 680-kilowatt project would be located on the east side of Admiralty Inlet in Puget Sound, Washington, about 1 kilometer west of Whidbey Island, entirely within Island County, Washington. The Federal Energy Regulatory Commission (FERC) is the lead agency. DOE is a cooperating agency. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD August 9, 2013 EA-1949: FERC Notice of Availability Errata Sheet

415

MHK Technologies/Sihwa tidal barrage power plant | Open Energy Information  

Open Energy Info (EERE)

Sihwa tidal barrage power plant Sihwa tidal barrage power plant < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Sihwa tidal barrage power plant.jpg Technology Profile Technology Type Click here Overtopping Technology Readiness Level Click here TRL 9 Commercial Scale Production Application Technology Description Sihwa TBPP operates only on flood tide generation which produces electrical power during the flood tide the water is discharged back from basin to sea during ebb tide Technology Dimensions Technology Nameplate Capacity (MW) 254 Device Testing Date Submitted 59:41.3 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Sihwa_tidal_barrage_power_plant&oldid=681654

416

Residual Sediment Fluxes in Weakly-to-Periodically Stratified Estuaries and Tidal Inlets  

Science Conference Proceedings (OSTI)

In this idealized numerical modeling study, the composition of residual sediment fluxes in energetic (e.g., weakly stratified or periodically stratified) tidal estuaries is investigated by means of one-dimensional water column models, with some ...

Hans Burchard; Henk M. Schuttelaars; W. Rockwell Geyer

417

Technological cost%3CU%2B2010%3Ereduction pathways for axial%3CU%2B2010%3Eflow turbines in the marine hydrokinetic environment.  

SciTech Connect

This report considers and prioritizes potential technical costreduction pathways for axialflow turbines designed for tidal, river, and ocean current resources. This report focuses on technical research and development costreduction pathways related to the device technology rather than environmental monitoring or permitting opportunities. Three sources of information were utilized to understand current cost drivers and develop a list of potential costreduction pathways: a literature review of technical work related to axialflow turbines, the U.S. Department of Energy Reference Model effort, and informal webinars and other targeted interactions with industry developers. Data from these various information sources were aggregated and prioritized with respect to potential impact on the lifetime levelized cost of energy. The four most promising costreduction pathways include structural design optimization; improved deployment, maintenance, and recovery; system simplicity and reliability; and array optimization.

Laird, Daniel L.; Johnson, Erick L.; Ochs, Margaret Ellen; Boren, Blake [Oregon State University, Corvallis, OR

2013-05-01T23:59:59.000Z

418

Technological cost%3CU%2B2010%3Ereduction pathways for axial%3CU%2B2010%3Eflow turbines in the marine hydrokinetic environment.  

Science Conference Proceedings (OSTI)

This report considers and prioritizes potential technical costreduction pathways for axialflow turbines designed for tidal, river, and ocean current resources. This report focuses on technical research and development costreduction pathways related to the device technology rather than environmental monitoring or permitting opportunities. Three sources of information were utilized to understand current cost drivers and develop a list of potential costreduction pathways: a literature review of technical work related to axialflow turbines, the U.S. Department of Energy Reference Model effort, and informal webinars and other targeted interactions with industry developers. Data from these various information sources were aggregated and prioritized with respect to potential impact on the lifetime levelized cost of energy. The four most promising costreduction pathways include structural design optimization; improved deployment, maintenance, and recovery; system simplicity and reliability; and array optimization.

Laird, Daniel L.; Johnson, Erick L.; Ochs, Margaret Ellen; Boren, Blake [Oregon State University, Corvallis, OR

2013-05-01T23:59:59.000Z

419

Assessment of Energy Production Potential from Tidal Streams in the United States  

DOE Green Energy (OSTI)

Tidal stream energy is one of the alternative energy sources that are renewable and clean. With the constantly increasing effort in promoting alternative energy, tidal streams have become one of the more promising energy sources due to their continuous, predictable and spatially-concentrated characteristics. However, the present lack of a full spatial-temporal assessment of tidal currents for the U.S. coastline down to the scale of individual devices is a barrier to the comprehensive development of tidal current energy technology. This project created a national database of tidal stream energy potential, as well as a GIS tool usable by industry in order to accelerate the market for tidal energy conversion technology. Tidal currents are numerically modeled with the Regional Ocean Modeling System and calibrated with the available measurements of tidal current speed and water level surface. The performance of the model in predicting the tidal currents and water levels is assessed with an independent validation. The geodatabase is published at a public domain via a spatial database engine and interactive tools to select, query and download the data are provided. Regions with the maximum of the average kinetic power density larger than 500 W/m2 (corresponding to a current speed of ~1 m/s), surface area larger than 0.5 km2 and depth larger than 5 m are defined as hotspots and list of hotspots along the USA coast is documented. The results of the regional assessment show that the state of Alaska (AK) contains the largest number of locations with considerably high kinetic power density, and is followed by, Maine (ME), Washington (WA), Oregon (OR), California (CA), New Hampshire (NH), Massachusetts (MA), New York (NY), New Jersey (NJ), North and South Carolina (NC, SC), Georgia (GA), and Florida (FL). The average tidal stream power density at some of these locations can be larger than 8 kW/m2 with surface areas on the order of few hundred kilometers squared, and depths larger than 100 meters. The Cook Inlet in AK is found to have a substantially large tidal stream power density sustained over a very large area.

Haas, Kevin A.

2011-06-29T23:59:59.000Z

420

THE SHAPES OF MILKY WAY SATELLITES: LOOKING FOR SIGNATURES OF TIDAL STIRRING  

Science Conference Proceedings (OSTI)

We study the shapes of Milky Way satellites in the context of the tidal stirring scenario for the formation of dwarf spheroidal galaxies. The standard procedures used to measure shapes involve smoothing and binning of data and thus may not be sufficient to detect structural properties such as bars, which are usually subtle in low surface brightness systems. Taking advantage of the fact that in nearby dwarfs photometry of individual stars is available, we introduce discrete measures of shape based on the two-dimensional inertia tensor and the Fourier bar mode. We apply these measures of shape first to a variety of simulated dwarf galaxies formed via tidal stirring of disks embedded in dark matter halos and orbiting the Milky Way. In addition to strong mass loss and randomization of stellar orbits, the disks undergo morphological transformation that typically involves the formation of a triaxial bar after the first pericenter passage. These tidally induced bars persist for a few Gyr before being shortened toward a more spherical shape if the tidal force is strong enough. We test this prediction by measuring in a similar way the shape of nearby dwarf galaxies, satellites of the Milky Way. We detect inner bars in Ursa Minor, Sagittarius, Large Magellanic Cloud, and possibly Carina. In addition, 6 out of 11 dwarfs that we studied show elongated stellar distributions in the outer parts that may signify transition to tidal tails. We thus find the shapes of Milky Way satellites to be consistent with the predictions of the tidal stirring model.

Lokas, Ewa L. [Nicolaus Copernicus Astronomical Center, 00-716 Warsaw (Poland); Majewski, Steven R.; Nidever, David L. [Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325 (United States); Kazantzidis, Stelios [Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 (United States); Mayer, Lucio [Institute for Theoretical Physics, University of Zuerich, CH-8057 Zuerich (Switzerland); Carlin, Jeffrey L. [Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY 12180-3590 (United States); Moustakas, Leonidas A., E-mail: lokas@camk.edu.pl [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

2012-05-20T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Environmental impacts of large-scale grid-connected ground-mounted PV installations  

E-Print Network (OSTI)

,6]. They highlighted the photovoltaic potential for a low carbon energy supply and the environmental benefits of PV comparison of energy supply options. 21st European Photovoltaic Solar Energy Conference. 2006. [8] IEA European Photovoltaic Energy Conference. 2008. [12] D. Beloin-Saint-Pierre, I. Blanc, J. Payet, P. Jacquin

422

Grid-connected Solar Electric Systems: The Earthscan Expert Handbook for Planning, Design and Installation  

Science Conference Proceedings (OSTI)

Solar electricity or photovoltaics (PV) is the world's fastest growing energy technology. It can be used on a wide variety of scales, from single dwellings to utility-scale solar farms providing power for whole communities. It can be integrated into ...

Geoff Stapleton; Susan Neill

2012-01-01T23:59:59.000Z

423

Design and implementation of a low cost grid-connected 10 kw hydro power system.  

E-Print Network (OSTI)

??ENGLISH ABSTRACT: The world is increasingly being faced with the challenge of effectively exploiting available renewable energy resources, not only to meet an ever growing… (more)

Lombard, Adriaan Cornelius Johannes

2010-01-01T23:59:59.000Z

424

Homeowners Guide to Financing a Grid-Connected Solar Electric System (Brochure)  

SciTech Connect

This guide provides an overview of the financing options that may be available to homeowners who are considering installing a solar electric system on their house.

Not Available

2010-10-01T23:59:59.000Z

425

Dynamic Analysis of a Grid-Connected Wind Electric Generator with Embedded Static VAR Compensator  

Science Conference Proceedings (OSTI)

This paper describes modeling and simulation of Wind Electric Generator (WEG) comprising a pitch controlled Horizontal Axis Wind Turbine (HAWT) coupled to squirrel cage induction generator through a gear. The generic issue of VAR drain from the grid ... Keywords: Wind turbine, induction generator, two mass model - drive train, SVC, wind electric generator dynamics

Vishnuvardhanan V.; Sasi K. Kottayil

2009-12-01T23:59:59.000Z

426

Power Smoothing Control in a Grid-Connected Marine Current Turbine System for Compensating  

E-Print Network (OSTI)

of generator power. In the second step, Super-capacitor (SC) Energy Storage System (ESS) is added to compensate, supercapacitor. NOMENCLATURE ESS Energy storage system MCT Marine current turbine MPPT Maximum power point tracking PMSG Permanent-magnet synchronous generator SoC State of charge SC Supercapacitor , , Magnitude

Brest, Université de

427

Control of Solar Photovoltaic (PhV) Power Generation In Grid-connected and Islanded Microgrids.  

E-Print Network (OSTI)

??With the ever increasing electricity demand, fast depletion of fossil fuel and the growing trend towards renewable energy resources, the integration of green distributed energy… (more)

Adhikari, Sarina

2013-01-01T23:59:59.000Z

428

Appropriate storage for high-penetration grid-connected photovoltaic plants A.A. Solomon a  

E-Print Network (OSTI)

% of the annual load requirements could have been achieved, albeit at the cost of having to dump approximately 5 be derived by detailed consideration of the three-way mutual interactions among storage, demand profile

Kammen, Daniel M.

429

MODULAR MULTI-LEVEL CONVERTER BASED HVDC SYSTEM FOR GRID CONNECTION OF OFFSHORE WIND  

E-Print Network (OSTI)

Control and Protection of Wind Power Plants with VSC-HVDC Connection By Sanjay K Chaudhary. VSC-HVDC cable transmission is a favourable option for a large and remote offshore wind power plant of a potential wind power plant with VSC-HVDC connection to the onshore grid. The test system is modelled

Chaudhary, Sanjay

430

Reactive power control of grid-connected wind farm based on adaptive dynamic programming  

E-Print Network (OSTI)

of wind farm with doubly fed induction generators (DFIG). Specifically, we investigate the on-cage induction generator, permanent magnet synchronous generator and doubly fed induction generator (DFIG). DFIG of DFIG are high efficiency, flexible control and low investment. The stator of DFIG is directly connected

He, Haibo

431

Power control of a wind farm with active stall wind turbines and AC grid connection  

E-Print Network (OSTI)

turbines with AC connection. The control of other wind farm concepts such as wind farms with DFIG wind

432

Simulation and Experimental Analysis of Grid-Connected Doubly-Fed Induction Generators  

Science Conference Proceedings (OSTI)

With the increase of wind generation penetration in power systems, it becomes more and more important to study its impact on power systems characteristics. The accurate dynamic modeling of wind plants is critical for the grid planning and operating studies. ... Keywords: doubly fed induction generator (DFIG), short-circuit test, model validation, transient stability

Guo Jiayang; Yu Xiao; Wu Tao; Chang Xianrong; Li Shanying; Liu Hui; Sun Yu

2010-06-01T23:59:59.000Z

433

REDUCING MISMATCH LOSSES IN GRID-CONNECTED RESIDENTIAL BIPV ARRAYS USING ACTIVE POWER CONVERSION COMPONENTS  

E-Print Network (OSTI)

/Simulink© environment for each topology using a 3 kWp rooftop-type plant. Simulation results show that a considerable amount of additional solar generated energy can be grid-fed using alternative plant layouts. 1 occur due to nearby buildings, trees, antennas or chimneys, which are usually inherent to the solar

Paris-Sud XI, Université de

434

Meeting the New CARB ZEV Mandate Requirements: Grid-Connected Hybrids and City EVs  

E-Print Network (OSTI)

Three User Groups: Homebased Users, Workbased Commuters, andK MODEL CARLINK I: USER GROUPS ¯ Homebased Users: Vehicle) $Ira Permanent Service, Several Homebased Users Would Sell

Burke, Andrew

2001-01-01T23:59:59.000Z

435

EERE News: Maine Deploys First U.S. Commercial, Grid-Connected...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

in this innovative clean energy technology and diversify the nation's energy mix. "Developing America's vast renewable energy resources is an important part of President...

436

Theoretical efficiency and asymptotic cost of grid-connected photovoltaic systems  

Science Conference Proceedings (OSTI)

Photovoltaics (PV) are regarded as a clean source energy technology and their use has expanded dramatically in recent years for both commercial and residential sectors. Learning curve studies show that PV modules have experienced very rapid reductions ...

Yan Yang; Eric Williams

2009-05-01T23:59:59.000Z

437

Investigations of grid-connected wind power system : low voltage ride through and power quality issues.  

E-Print Network (OSTI)

??This thesis presents an investigation on system architecture, control and analysis of wind turbine generators to improve grid integration performance. First of all, the main… (more)

Zhang, Shao.

2011-01-01T23:59:59.000Z

438

New EIA data show total grid-connected photovoltaic solar capacity ...  

U.S. Energy Information Administration (EIA)

Using new information, EIA combines data on utility-scale solar photovoltaic (PV) capacity with customer-sited PV capacity, as reported in the graphic.

439

Modeling, simulation, and analysis of grid connected dish-stirling solar power plants .  

E-Print Network (OSTI)

??The percentage of renewable energy within the global electric power generation portfolio is expected to increase rapidly over the next few decades due to increasing… (more)

Howard, Dustin F.

2010-01-01T23:59:59.000Z

440

Impact Assessment and Modeling of Grid Connected Loads and Power Supplies  

Science Conference Proceedings (OSTI)

This report contains results of preliminary testing of six light-emitting diode (LED) roadway and area light fixtures from six manufacturers. These fixtures were subjected to a series of tests to determine general specifications, emissions profile, immunity to voltage distortion and sags, and immunity to voltage surges.

2011-12-21T23:59:59.000Z

Note: This page contains sample records for the topic "grid-connected hydrokinetic tidal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Assessing the Reliability and Economics of Wide-Scale Grid-Connected...  

NLE Websites -- All DOE Office Websites (Extended Search)

at Carnegie Mellon University as well as a graduate researcher in the Carnegie Mellon Electricity Industry Center. He has a B.A. in Physics (with minors in Political Science...

442

Grid-connected integrated community energy system. Phase II, Stage 2, final report. Executive summary  

DOE Green Energy (OSTI)

The University of Minnesota Grid-ICES was divided into four identifiable programs in order to study the feasibility of each of the parts of the ICES independently. The total program involves cogeneration, fuel conversion, fuel substitution, and energy conservation by system change. This Phase II report substantiates the theory that the Basic Grid ICES is not only energy-effective, but it will become cost effective as unit operating costs adjust to supply and demand in the 1980's. The Basic Program involves the cogeneration of steam and electricity. The University of Minnesota has been following an orderly process of converting its Central Heating Plant from gas-oil to 100% coal since 1973. The first step in the transition is complete. The University is presently 100% on coal, and will begin the second step, the test burning of low Btu Western coal during the spring, summer, and fall, and high Btu Eastern coal during the high thermal winter period. The final step to 100% Western coal is planned to be completed by 1980. In conjunction with the final step a retired Northern States Power generating plant has been purchased and is in the process of being retrofitted for topping the existing plant steam output during the winter months. The Basic Plan of ICES involves the add-on work and expense of installing additional boiler capacity at Southeast Steam and non-condensing electric generating capability. This will permit the simultaneous generation of electricity and heat dependent upon the thermal requirements of the heating and cooling system in University buildings. This volume presents an overview of the Community and the ICES. (MCW)

Not Available

1978-03-22T23:59:59.000Z

443

Emerging Technology and Architecture Approaches for Plug-in Electric Vehicles to Smart Grid Connectivity  

Science Conference Proceedings (OSTI)

This report provides an overview of the latest advances in technologies evolving to facilitate plug-in electric vehicles (PEVs) to Smart Grid integration. It reiterates applicable requirements based on fundamental principles as well as provides a status on the evolving relevant standards space. Multiple technological approaches are presented, compared, and contrasted; and an update on the status of each is provided. The document concludes with early recommendations for utility and automotive industry pra...

2011-12-21T23:59:59.000Z

444

Estimating the maximum potential revenue for grid connected electricity storage : arbitrage and regulation.  

Science Conference Proceedings (OSTI)

The valuation of an electricity storage device is based on the expected future cash ow generated by the device. Two potential sources of income for an electricity storage system are energy arbitrage and participation in the frequency regulation market. Energy arbitrage refers to purchasing (stor- ing) energy when electricity prices are low, and selling (discharging) energy when electricity prices are high. Frequency regulation is an ancillary service geared towards maintaining system frequency, and is typically procured by the independent system operator in some type of market. This paper outlines the calculations required to estimate the maximum potential revenue from participating in these two activities. First, a mathematical model is presented for the state of charge as a function of the storage device parameters and the quantities of electricity purchased/sold as well as the quantities o ered into the regulation market. Using this mathematical model, we present a linear programming optimization approach to calculating the maximum potential revenue from an elec- tricity storage device. The calculation of the maximum potential revenue is critical in developing an upper bound on the value of storage, as a benchmark for evaluating potential trading strate- gies, and a tool for capital nance risk assessment. Then, we use historical California Independent System Operator (CAISO) data from 2010-2011 to evaluate the maximum potential revenue from the Tehachapi wind energy storage project, an American Recovery and Reinvestment Act of 2009 (ARRA) energy storage demonstration project. We investigate the maximum potential revenue from two di erent scenarios: arbitrage only and arbitrage combined with the regulation market. Our analysis shows that participation in the regulation market produces four times the revenue compared to arbitrage in the CAISO market using 2010 and 2011 data. Then we evaluate several trading strategies to illustrate how they compare to the maximum potential revenue benchmark. We conclude with a sensitivity analysis with respect to key parameters.

Byrne, Raymond Harry; Silva Monroy, Cesar Augusto.

2012-12-01T23:59:59.000Z

445

Developement of a digitally controlled low power single phase inverter for grid connected solar panel.  

E-Print Network (OSTI)

?? The work consists in developing a power conversion unit for solar panel connected to the grid. This unit will be a single phase inverter… (more)

Marguet, Raphael

2010-01-01T23:59:59.000Z

446

Meeting the New CARB ZEV Mandate Requirements: Grid-Connected Hybrids and City EVs  

E-Print Network (OSTI)

= -60 mphtop speed ¯ Battery capacity ~113-1/2of full BEVbatteries ¯ -8 4 kW- hr capacity e-com Battery Pack Locationetc ¯ Battery Endof Lde (EEL)wasdefined as 80% capacity for

Burke, Andrew

2001-01-01T23:59:59.000Z

447

GAP analysis towards a design qualification standard development for grid-connected photovoltaic inverters.  

SciTech Connect

A dedicated design qualification standard for PV inverters does not exist. Development of a well-accepted design qualification standard, specifically for PV inverters will significantly improve the reliability and performance of inverters. The existing standards for PV inverters such as ANSI/UL 1741 and IEC 62109-1 primarily focus on safety of PV inverters. The IEC 62093 discusses inverter qualification but it includes all the BOS components. There are other general standards for distributed generators including the IEEE 1547 series of standards which cover major concerns like utility integration but they are not dedicated to PV inverters and are not written from a design qualification point of view. In this paper some of the potential requirements for a design qualification standard for PV inverters are addressed. The missing links in existing PV inverter related standards are identified and with the IEC 62093 as a guideline, the possible inclusions in the framework for a dedicated design qualification standard of PV inverter are discussed. Some of the key missing links are related to electric stress tests. Hence, a method to adapt the existing surge withstand test standards for use in design qualification standard of PV inverter is presented.

Tamizhmani, Govindasamy (Arizona State University, Tempe, AZ); Granata, Jennifer E.; Maracas, George (Arizona State University, Tempe, AZ); Ayyanar, Raja (Arizona State University, Tempe, AZ); Marinella, Matthew; Venkataramanan, Sai Balasubramanian Alampoondi (Arizona State University, Tempe, AZ)

2011-06-01T23:59:59.000Z

448

Evolutionary algorithms for the design of grid-connected PV-systems  

Science Conference Proceedings (OSTI)

The sale of electric energy generated by photovoltaic (PV) plants has attracted much attention in recent years. The installation of PV plants aims to obtain the maximum benefit of captured solar energy. The current methodologies for planning the design ... Keywords: Differential evolution, Evolutionary algorithms, Numerical optimization, Photovoltaic plants

Daniel Gómez-Lorente; Isaac Triguero; Consolación Gil; A. Espín Estrella

2012-07-01T23:59:59.000Z

449

Utility Grid-Connected Distributed Power Systems National Solar Energy Conference  

E-Print Network (OSTI)

OF THE PROPOSED REGULATION REPEAL: UCF-8.002 Solar Thermal Collector and PV Module Testing Standards. (1) The Testing and Standards Program shall apply to solar thermal collectors and PV modules submitted for testing thermal collectors or PV modules in Florida. (3) The criteria for testing the performance of solar thermal

450

Performance of a grid connected residential photovoltaic system with energy storage  

DOE Green Energy (OSTI)

In 1995, Salt River Project (SRP), a public power utility located in Phoenix, Arizona, collaborated with the Electric Power Research Institute (EPRI) and Sandia National Laboratories (Sandia) to initiate a photovoltaic (PV) power system with battery energy storage to match PV output with residential customer peak energy demand periods. The PV power system, a 2.4kW PV array with 25.2kWh of energy storage, was designed and installed by Southwest Technology Development Institute (SWTDI) at an SRP-owned facility, known as the Chandler Research House during August 1995. This paper presents an overview of the system design, operation and performance. 3 refs., 2 figs., 2 tabs.

Palomino, G.E. [SRP, Phoenix, AZ (United States); Wiles, J. [Southwest Technology Development Institute, Las Cruces, NM (United States); Stevens, J. [Sandia National Labs., Albuquerque, NM (United States); Goodman, F. [EPRI, Palo Alto, CA (United States)

1997-11-01T23:59:59.000Z

451

Computer simulation of the operations of utility grid connected photovoltaic power plants  

Science Conference Proceedings (OSTI)

In order to evaluate the commercial viability of photovoltaic power systems it is necessary to have reliable estimates and descriptions of the supply of electricity generated by the solar technology, the demand for that electricity, and the market application. ...

Chester S. Borden

1980-05-01T23:59:59.000Z

452

Optimal control of a grid-connected hybrid electrical energy storage system for homes  

Science Conference Proceedings (OSTI)

Integrating residential photovoltaic (PV) power generation and electrical energy storage (EES) systems into the Smart Grid is an effective way of utilizing renewable power and reducing the consumption of fossil fuels. This has become a particularly interesting ... Keywords: hybrid electrical energy storage system, optimal control, smart grid

Yanzhi Wang, Xue Lin, Massoud Pedram, Sangyoung Park, Naehyuck Chang

2013-03-01T23:59:59.000Z

453

Grid-connectivity of remote isolated islands—A proposition in Indian context  

Science Conference Proceedings (OSTI)

This paper has analyzed the cases of Moushuni Island at Sundarban of 24 Parganas South of West Bengal

Aurobi Das; V. Balakrishnan

2012-01-01T23:59:59.000Z

454

Marine & Hydrokinetic Technologies (Fact Sheet)  

DOE Green Energy (OSTI)

This document described the U.S. Department of Energy's Water Power Program efforts to promote the development and deployment of advanced water power devices.

Not Available

2011-07-01T23:59:59.000Z

455

Effects of Localized Energy Extraction in an Idealized, Energetically Complete Numerical Model of an Ocean-Estuary Tidal System  

NLE Websites -- All DOE Office Websites (Extended Search)

localized energy extraction in an localized energy extraction in an idealized, energetically complete numerical model of an ocean-estuary tidal system MHK Instrumentation, Measurement & Computer Modeling Workshop, Broomfield CO, July 10 2012 Mitsuhiro Kawase and Marisa Gedney Northwest National Marine Renewable Energy Center / School of Oceanography University of Washington Seattle WA 98195 United States * Far-field (Estuary-wide) - Changes in the tidal range - Changes in tidal currents ï‚— Near-field (Vicinity of the Device) ï‚— Flow redirection ï‚— Interaction with marine life ï‚— Impact on bottom sediments and benthos Environmental Effects of Tidal Energy Extraction * Reduction in tidal range can permanently expose/submerge tidal flats, altering nearshore habitats * Reduction in kinetic energy of

456

Black-Hole Spin Dependence in the Light Curves of Tidal Disruption Events  

E-Print Network (OSTI)

A star orbiting a supermassive black hole can be tidally disrupted if the black hole's gravitational tidal field exceeds the star's self gravity at pericenter. Some of this stellar tidal debris can become gravitationally bound to the black hole, leading to a bright electromagnetic flare with bolometric luminosity proportional to the rate at which material falls back to pericenter. In the Newtonian limit, this flare will have a light curve that scales as t^-5/3 if the tidal debris has a flat distribution in binding energy. We investigate the time dependence of the black-hole mass accretion rate when tidal disruption occurs close enough the black hole that relativistic effects are significant. We find that for orbits with pericenters comparable to the radius of the marginally bound circular orbit, relativistic effects can double the peak accretion rate and halve the time it takes to reach this peak accretion rate. The accretion rate depends on both the magnitude of the black-hole spin and its orientation with respect to the stellar orbit; for orbits with a given pericenter radius in Boyer-Lindquist coordinates, a maximal black-hole spin anti-aligned with the orbital angular momentum leads to the largest peak accretion rate.

Michael Kesden

2012-07-26T23:59:59.000Z

457

All Eyes on Eastport: Tidal Energy Project Brings Change, Opportunity to  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

All Eyes on Eastport: Tidal Energy Project Brings Change, All Eyes on Eastport: Tidal Energy Project Brings Change, Opportunity to Local Community All Eyes on Eastport: Tidal Energy Project Brings Change, Opportunity to Local Community July 24, 2012 - 2:40pm Addthis Captain Gerald "Gerry" Morrison, Vice President of Perry Marine & Consctruction. | Photo Courtesy of Ocean Renewable Power Company. Captain Gerald "Gerry" Morrison, Vice President of Perry Marine & Consctruction. | Photo Courtesy of Ocean Renewable Power Company. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs Today in Eastport, Maine, people are gathering to celebrate a project that will harness the power of the massive tides of Cobscook Bay to generate clean electricity. At a public dedication event this afternoon, Portland-based Ocean Renewable

458

Visualizing Spacetime Curvature via Frame-Drag Vortexes and Tidal Tendexes II. Stationary Black Holes  

E-Print Network (OSTI)

When one splits spacetime into space plus time, the Weyl curvature tensor (which equals the Riemann tensor in vacuum) splits into two spatial, symmetric, traceless tensors: the tidal field $E$, which produces tidal forces, and the frame-drag field $B$, which produces differential frame dragging. In recent papers, we and colleagues have introduced ways to visualize these two fields: tidal tendex lines (integral curves of the three eigenvector fields of $E$) and their tendicities (eigenvalues of these eigenvector fields); and the corresponding entities for the frame-drag field: frame-drag vortex lines and their vorticities. These entities fully characterize the vacuum Riemann tensor. In this paper, we compute and depict the tendex and vortex lines, and their tendicities and vorticities, outside the horizons of stationary (Schwarzschild and Kerr) black holes; and we introduce and depict the black holes' horizon tendicity and vorticity (the normal-normal components of $E$ and $B$ on the horizon). For Schwarzschil...

Zhang, Fan; Nichols, David A; Chen, Yanbei; Lovelace, Geoffrey; Matthews, Keith D; Owen, Robert; Thorne, Kip S

2012-01-01T23:59:59.000Z

459

Measurements of Turbulence at Two Tidal Energy Sites in Puget Sound, WA  

SciTech Connect

Field measurements of turbulence are pre- sented from two sites in Puget Sound, WA (USA) that are proposed for electrical power generation using tidal current turbines. Rapidly sampled data from multiple acoustic Doppler instruments are analyzed to obtain statistical mea- sures of fluctuations in both the magnitude and direction of the tidal currents. The resulting turbulence intensities (i.e., the turbulent velocity fluctuations normalized by the harmonic tidal currents) are typically 10% at the hub- heights (i.e., the relevant depth bin) of the proposed turbines. Length and time scales of the turbulence are also analyzed. Large-scale, anisotropic eddies dominate the energy spectra, which may be the result of proximity to headlands at each site. At small scales, an isotropic turbulent cascade is observed and used to estimate the dissipation rate of turbulent kinetic energy. Data quality and sampling parameters are discussed, with an emphasis on the removal of Doppler noise from turbulence statistics.

Thomson, Jim; Polagye, Brian; Durgesh, Vibhav; Richmond, Marshall C.

2012-06-05T23:59:59.000Z

460

Earth Tidal Analysis At Raft River Geothermal Area (1984) | Open Energy  

Open Energy Info (EERE)

Earth Tidal Analysis At Raft River Geothermal Area Earth Tidal Analysis At Raft River Geothermal Area (1984) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1984 Usefulness useful DOE-funding Unknown Exploration Basis Determine porosity of the reservoir Notes The response of a confined, areally infinite aquifer to external loads imposed by earth tides is examined. Because the gravitational influence of celestial objects occurs over large areas of the earth, the confined aquifer is assumed to respond in an undrained fashion. Since undrained response is controlled by water compressibility, earth tide response can be directly used only to evaluate porous medium compressibility if porosity is known. In the present work, change in external stress is estimated from

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