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Note: This page contains sample records for the topic "distributed generation system" 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.


1

Hybrid distributed generation for power distribution systems planning  

Science Conference Proceedings (OSTI)

This paper presents planning models for hybrid distributed generation systems, as well as the results corresponding to a distribution systems planning problem obtained using a new computational tool based on a Geographic Information System, GIS. This ... Keywords: distributed generation (DG), geographical information systems (GIS), hybrid power systems, optimal planning

I. J. Ramírez-Rosado; P. J. Zorzano-Santamaría; L. A. Fernández-Jiménez; E. García-Garrido; P. Lara-Santillán; E. Zorzano-Alba; M. Mendoza-Villena

2006-02-01T23:59:59.000Z

2

Residential Power Systems for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

This report is an update to "Technology Assessment of Residential Power Systems for Distributed Generation Markets" (EPRIsolutions report 1000772). That previous report dealt with fuel cells, stirling engine generators, and reciprocating engine generators; this current report focuses on polymer electrolyte membrane fuel cells (PEMFCs) and solid oxide fuel cell (SOFC) power systems fueled with natural gas or propane and sized for residential loads.

2002-03-29T23:59:59.000Z

3

Distribution System Design for Strategic Use of Distributed Generation  

Science Conference Proceedings (OSTI)

This project was undertaken to identify distribution system design characteristics that limit widespread distributed generation (DG) penetration in utility distribution systems and to suggest new system design paths that increase strategic use of DG by distribution system operators. This work in 2005 was the first phase (requirements definition) of a multi-year project in the EPRI Advanced Distribution Automation (ADA) program plan. The multi-year project calls for design, implementation, and testing of ...

2005-12-19T23:59:59.000Z

4

Distributed Generation Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Systems Inc Distributed Generation Systems Inc Name Distributed Generation Systems Inc Address 200 Union Blvd Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of electricity generation wind power facilities Website http://www.disgenonline.com/ Coordinates 39.718048°, -105.1324055° 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":39.718048,"lon":-105.1324055,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

5

Protection system design for power distribution systems in the presence of distributed generation.  

E-Print Network (OSTI)

??The increasing presence of distributed generation and the steady modernization of power distribution system equipment have presented new opportunities in power distribution system studies. This… (more)

Mao, Yiming

2005-01-01T23:59:59.000Z

6

A reliability assessment methodology for distribution systems with distributed generation  

E-Print Network (OSTI)

Reliability assessment is of primary importance in designing and planning distribution systems that operate in an economic manner with minimal interruption of customer loads. With the advances in renewable energy sources, Distributed Generation (DG), is forecasted to increase in distribution networks. The study of reliability evaluation of such networks is a relatively new area. This research presents a new methodology that can be used to analyze the reliability of such distribution systems and can be applied in preliminary planning studies for such systems. The method uses a sequential Monte Carlo simulation of the distribution systemÂ?s stochastic model to generate the operating behavior and combines that with a path augmenting Max flow algorithm to evaluate the load status for each state change of operation in the system. Overall system and load point reliability indices such as hourly loss of load, frequency of loss of load and expected energy unserved can be computed using this technique. On addition of DG in standby mode of operation at specific locations in the network, the reliability indices can be compared for different scenarios and strategies for placement of DG and their capacities can be determined using this methodology.

Duttagupta, Suchismita Sujaya

2003-05-01T23:59:59.000Z

7

Avoiding Distribution System Upgrade Costs Using Distributed Generation  

Science Conference Proceedings (OSTI)

PNNL, in cooperation with three utilities, developed a database and methodology to analyze and characterize the avoided costs of Distributed Generation (DG) deployment as an alternative to traditional distribution system investment. After applying a number of screening criteria to the initial set of 307 cases, eighteen were selected for detailed analysis. Alternative DG investment scenarios were developed for these cases to permit capital, operation, maintenance, and fuel costs to be identified and incorporated into the analysis. The “customer-owned” backup power generator option was also investigated. The results of the analysis of the 18 cases show that none yielded cost savings under the alternative DG scenarios. However, the DG alternative systems were configured using very restrictive assumptions concerning reliability, peak rating, engine types and acceptable fuel. In particular it was assumed that the DG alternative in each case must meet the reliability required of conventional distribution systems (99.91% reliability). The analysis was further constrained by a requirement that each substation meet the demands placed upon it by a one in three weather occurrence. To determine if, by relaxing these requirements, the DG alternative might be more viable, one project was re-examined. The 99.91% reliability factor was still assumed for normal operating conditions but redundancy required to maintain reliability was relaxed for the relatively few hours every three years where extreme weather caused load to exceed present substation capacity. This resulted in the deferment of capital investment until later years and reduced the number of engines required for the project. The cost of both the conventional and DG alternative also dropped because the centralized power generation, variable O&M, and DG fuels costs were calculated based on present load requirements in combination with long-term forecasts of load growth, as opposed to load requirements plus a buffer based on predictions of extraordinary weather conditions. Application of the relaxed set of assumptions reduced the total cost of the DG alternative by roughly 57 percent from $7.0 million to $3.0 million. The reduction, however, did not change the overall result of the analysis, as the cost of the conventional distribution system upgrade alternative remained lower at $1.7 million. This paper also explores the feasibility of using a system of backup generators to defer investment in distribution system infrastructure. Rather than expanding substation capacity at substations experiencing slow load growth rates, PNNL considered a scenario where diesel generators were installed on location at customers participating in a program designed to offer additional power security and reliability to the customer and connection to the grid. The backup generators, in turn, could be used to meet peak demand for a limited number of hours each year, thus deferring distribution system investment. Data from an existing program at one of the three participating utilities was used to quantify the costs associated with the backup generator scenario. The results of the “customer owned” backup power generator analysis showed that in all cases the nominal cost of the DG scenario is more than the nominal cost of the base-case conventional distribution system upgrade scenario. However, in two of the cases the total present value costs of the alternative backup generator scenarios were between 15 and 22% less than those for the conventional scenarios. Overall, the results of the study offer considerable encouragement that the use of DG systems can defer conventional distribution system upgrades under the right conditions and when the DG configurations are intelligently designed. Using existing customer-owned DG to defer distribution system upgrades appears to be an immediate commercially-viable opportunity.

Schienbein, Lawrence A.; Balducci, Patrick J.; Nguyen, Tony B.; Brown, Daryl R.; DeSteese, John G.; Speer, Gregory A.

2004-01-20T23:59:59.000Z

8

SOFC combined cycle systems for distributed generation  

SciTech Connect

The final phase of the tubular SOFC development program will focus on the development and demonstration of pressurized solid oxide fuel cell (PSOFC)/gas turbine (GT) combined cycle power systems for distributed power applications. The commercial PSOFC/GT product line will cover the power range 200 kWe to 50 MWe, and the electrical efficiency for these systems will range from 60 to 75% (net AC/LHV CH4), the highest of any known fossil fueled power generation technology. The first demonstration of a pressurized solid oxide fuel cell/gas turbine combined cycle will be a proof-of-concept 250 kWe PSOFC/MTG power system consisting of a single 200 kWe PSOFC module and a 50 kWe microturbine generator (MTG). The second demonstration of this combined cycle will be 1.3 MWe fully packaged, commercial prototype PSOFC/GT power system consisting of two 500 kWe PSOFC modules and a 300 kWe gas turbine.

Brown, R.A.

1997-05-01T23:59:59.000Z

9

Property:Distributed Generation System Enclosure | Open Energy Information  

Open Energy Info (EERE)

System Enclosure System Enclosure Jump to: navigation, search This is a property of type String. The allowed values for this property are: Indoor Outdoor Dedicated Shelter Pages using the property "Distributed Generation System Enclosure" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Indoor + Distributed Generation Study/615 kW Waukesha Packaged System + Outdoor + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Outdoor + Distributed Generation Study/Arrow Linen + Outdoor + Distributed Generation Study/Dakota Station (Minnegasco) + Outdoor + Distributed Generation Study/Elgin Community College + Indoor + Distributed Generation Study/Emerling Farm + Dedicated Shelter + Distributed Generation Study/Floyd Bennett + Outdoor +

10

Property:Distributed Generation System Power Application | Open Energy  

Open Energy Info (EERE)

Application Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Power Application" Showing 21 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Based Load + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Based Load + Distributed Generation Study/Arrow Linen + Based Load + Distributed Generation Study/Dakota Station (Minnegasco) + Based Load +, Backup + Distributed Generation Study/Elgin Community College + Based Load +, Backup + Distributed Generation Study/Emerling Farm + Based Load + Distributed Generation Study/Floyd Bennett + Based Load + Distributed Generation Study/Harbec Plastics + Based Load + Distributed Generation Study/Hudson Valley Community College + Based Load +

11

Distribution System Planning with Distributed Generation: Optimal versus Heuristic Approach.  

E-Print Network (OSTI)

??Distribution system design and planning is facing a major change in paradigm because of deregulation of the power industry and with rapid penetration of distributed… (more)

Bin Humayd, Abdullah

2011-01-01T23:59:59.000Z

12

Property:Distributed Generation System Application | Open Energy  

Open Energy Info (EERE)

System Application System Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Application" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Combined Heat and Power + Distributed Generation Study/615 kW Waukesha Packaged System + Combined Heat and Power + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Combined Heat and Power + Distributed Generation Study/Arrow Linen + Combined Heat and Power + Distributed Generation Study/Dakota Station (Minnegasco) + Combined Heat and Power + Distributed Generation Study/Elgin Community College + Combined Heat and Power + Distributed Generation Study/Emerling Farm + Combined Heat and Power +

13

Slack bus modeling for distributed generation and its impacts on distribution system analysis, operation and planning.  

E-Print Network (OSTI)

??Distribution system operating environments are changing rapidly. Proper distributed generation placement and operating will bring benefits for supporting voltage, reducing system loss, enhancing system reliability,… (more)

Tong, Shiqiong

2007-01-01T23:59:59.000Z

14

Distributed Generation Study/Patterson Farms CHP System Using...  

Open Energy Info (EERE)

Farms CHP System Using Renewable Biogas < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Field...

15

An enhanced load transfer scheme for power distribution systems connected with distributed generation sources  

Science Conference Proceedings (OSTI)

This paper presents an enhanced load transfer scheme for power distribution systems connected with distributed generation sources. Load transfer is an important approach to improve the reliability of power distribution systems. The proposed load transfer ... Keywords: distributed generation source, distribution feeder, distribution system, interconnection, load transfer

Wen-Chih Yang; Wei-Tzer Huang

2011-04-01T23:59:59.000Z

16

Application of Artificial Intelligence Technique in Distributed Generation System  

Science Conference Proceedings (OSTI)

This paper gives a brief description of current situation of distributed generation system, and points out that microgrid can run in two kinds of operation modes. The key problems which need to be cautiously considered exist in each operation mode are ... Keywords: Artificial intelligence, Artificial neural network, Distributed generation system, Fuzzy logic, Genetic algorithm, Multi-agent system

Guoqing Weng; Youbing Zhang; Yi Hu

2009-05-01T23:59:59.000Z

17

Property:Distributed Generation System Heating-Cooling Application | Open  

Open Energy Info (EERE)

Heating-Cooling Application Heating-Cooling Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Heating-Cooling Application" Showing 21 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Domestic Hot Water +, Space Heat and/or Cooling + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Domestic Hot Water + Distributed Generation Study/Arrow Linen + Domestic Hot Water + Distributed Generation Study/Dakota Station (Minnegasco) + Space Heat and/or Cooling +, Other + Distributed Generation Study/Elgin Community College + Space Heat and/or Cooling +, Domestic Hot Water + Distributed Generation Study/Emerling Farm + Domestic Hot Water +, Process Heat and/or Cooling +

18

Unbalanced Load Flow for Weakly Meshed Distribution Systems with Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed Generation (DG) can bring support to distribution system, meanwhile, it bring unbalancedness in power source, load and line. Traditional load flow algorithms are not applicable to the weakly meshed distribution system with DGs. First, this ... Keywords: weakly meshed distribution system, distributed generation, unbalanced load flow, sensitivity compensation

Shao-Qiang Hu; Sen-Mao Li

2010-06-01T23:59:59.000Z

19

Using Distributed Tri-generation Systems for Neighborhood Hydrogen Refueling  

E-Print Network (OSTI)

Using Distributed Tri-generation Systems for Neighborhood Hydrogen Refueling Xuping Li and Joan: Xuping Li (Xupli@ucdavis.edu), Joan Ogden (jmogden@ucdavis.edu) INTRODUCTION TRI-GENERATION SYSTEM AND NEIGHBORHOOD REFUELING DESCRIPTION METHODS AND DATA CONCLUSIONS An engineering/economic model for H2 tri-generation

California at Davis, University of

20

Distributed generation capabilities of the national energy modeling system  

E-Print Network (OSTI)

N ATIONAL L ABORATORY Distributed Generation Capabilities ofemployer. LBNL-52432 Distributed Generation Capabilities of1.1 Definition of Distributed Generation and Interpretation

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Enhancing reliability in passive anti-islanding protection schemes for distribution systems with distributed generation.  

E-Print Network (OSTI)

??This thesis introduces a new approach to enhance the reliability of conventional passive anti-islanding protection scheme in distribution systems embedding distributed generation. This approach uses… (more)

Sheikholeslamzadeh, Mohsen

2012-01-01T23:59:59.000Z

22

Investigating the electric power distribution system (EPDS) bus voltage in the presence of distributed generation (DG)  

Science Conference Proceedings (OSTI)

This paper investigates the Electric Power Distribution System (EPDS) bus voltage in the presence of Distributed Generation (DG). Distribution Company's (Discos) planner endeavor to develop new planning strategies for their network in order to serve ... Keywords: PSCAD, distributed generation, electric power distribution system, islanding, power quality, voltage stability

Hasham Khan; Mohammad Ahmad Choudhry; Tahir Mahmood; Aamir Hanif

2006-04-01T23:59:59.000Z

23

Automatic generation of water distribution systems based on GIS data  

Science Conference Proceedings (OSTI)

In the field of water distribution system (WDS) analysis, case study research is needed for testing or benchmarking optimisation strategies and newly developed software. However, data availability for the investigation of real cases is limited due to ... Keywords: Algorithmic network generation, GIS-data, Hydraulic simulation, Modular design system, Water distribution system

Robert Sitzenfrei, Michael MöDerl, Wolfgang Rauch

2013-09-01T23:59:59.000Z

24

Next-Generation Distributed Power Management for Photovoltaic Systems  

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

Next-Generation Distributed Power Management for Photovoltaic Systems Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth Date: July 29, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Steven Lanzisera In recent years, the balance of systems (BOS) side of photovoltaic (PV) energy has become a major focus in the effort to drive solar energy towards grid parity. The power management architecture has expanded to include a range of distributed solutions, including microinverters and 'micro' DC-DC converters to solve problems with mismatch (shading), expand networking and control, and solve critical BOS issues such as fire safety. This talk will introduce traditional and distributed approaches for PV systems, and will propose a next-generation architecture based on a new

25

Distributed Generation System Characteristics and Costs in the Buildings  

Gasoline and Diesel Fuel Update (EIA)

1.6 mb) 1.6 mb) Appendix A - Photovoltaic (PV) Cost and Performance Characteristics for Residential and Commercial Applications (1.0 mb) Appendix B - The Cost and Performance of Distributed Wind Turbines, 2010-35 (0.5 mb) Distributed Generation System Characteristics and Costs in the Buildings Sector Release date: August 7, 2013 Distributed generation in the residential and commercial buildings sectors refers to the on-site generation of energy, often electricity from renewable energy systems such as solar photovoltaics (PV) and small wind turbines. Many factors influence the market for distributed generation, including government policies at the local, state, and federal level, and project costs, which vary significantly depending on time, location, size, and application.

26

Optimal Reactive Power Planning of Radial Distribution Systems with Distributed Generation  

Science Conference Proceedings (OSTI)

The paper analyzes reactive power optimization problem in distribution system with wind power and PV generators. Reactive power optimization mathematical model including the active power loss, reactive power compensation capacity and static voltage margin ... Keywords: Distributed generation, Distributed Generation, Immune Algorithm, Cluster Evolutionary

Li Shengqi, Zeng Lilin, Li Yongan, He Zhengping

2013-01-01T23:59:59.000Z

27

Distributed Generation System Characteristics and Costs in the Buildings Sector  

Gasoline and Diesel Fuel Update (EIA)

Distributed Generation System Distributed Generation System Characteristics and Costs in the Buildings Sector August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Distributed Generation System Characteristics and Costs in the Buildings Sector i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the U.S. Department of Energy or other Federal agencies.

28

Engineering Guide for Integration of Distributed Generation and Storage into Power Distribution Systems  

Science Conference Proceedings (OSTI)

Distributed resources (DR) hold great promise for improving the efficiency and reliability of electric power systems. The work described in this report focuses on distributed generation and storage, a subset of the larger family of DR technologies.

2000-12-11T23:59:59.000Z

29

Distributed Generation Market Study: Advanced Turbine System Program  

Science Conference Proceedings (OSTI)

The ultra high efficiency, environmental superiority, and cost competitiveness of advanced turbine systems (ATSs) makes them attractive candidates for use in the near future in distributed generation applications. This study found that ATS engines with the cost and performance characteristics provided by Allison Engine Company (Allison) could have a significant regional market in the 2000-2005 time period.

1999-03-10T23:59:59.000Z

30

Distributed Generation  

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

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

31

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC during the October 2002 to December 2002 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. The following activities have been carried out during this reporting period: {lg_bullet} Conceptual system design trade studies were performed {lg_bullet} Part-load performance analysis was conducted {lg_bullet} Primary system concept was down-selected {lg_bullet} Dynamic control model has been developed {lg_bullet} Preliminary heat exchanger designs were prepared {lg_bullet} Pressurized SOFC endurance testing was performed

Nguyen Minh; Faress Rahman

2002-12-31T23:59:59.000Z

32

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the April to October 2004 reporting period in Task 2.3 (SOFC Scaleup for Hybrid and Fuel Cell Systems) under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL), entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. This study analyzes the performance and economics of power generation systems for central power generation application based on Solid Oxide Fuel Cell (SOFC) technology and fueled by natural gas. The main objective of this task is to develop credible scale up strategies for large solid oxide fuel cell-gas turbine systems. System concepts that integrate a SOFC with a gas turbine were developed and analyzed for plant sizes in excess of 20 MW. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Technology gaps and required engineering development efforts were identified and evaluated.

David Deangelis; Rich Depuy; Debashis Dey; Georgia Karvountzi; Nguyen Minh; Max Peter; Faress Rahman; Pavel Sokolov; Deliang Yang

2004-09-30T23:59:59.000Z

33

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the April to October 2004 reporting period in Task 2.3 (SOFC Scaleup for Hybrid and Fuel Cell Systems) under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL), entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. This study analyzes the performance and economics of power generation systems for central power generation application based on Solid Oxide Fuel Cell (SOFC) technology and fueled by natural gas. The main objective of this task is to develop credible scale up strategies for large solid oxide fuel cell-gas turbine systems. System concepts that integrate a SOFC with a gas turbine were developed and analyzed for plant sizes in excess of 20 MW. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Technology gaps and required engineering development efforts were identified and evaluated.

David Deangelis; Rich Depuy; Debashis Dey; Georgia Karvountzi; Nguyen Minh; Max Peter; Faress Rahman; Pavel Sokolov; Deliang Yang

2004-09-30T23:59:59.000Z

34

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the January to June 2004 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Nguyen Minh

2004-07-04T23:59:59.000Z

35

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the July 2003 to December 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Faress Rahman; Nguyen Minh

2004-01-04T23:59:59.000Z

36

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the January to June 2004 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Nguyen Minh

2004-07-04T23:59:59.000Z

37

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the July 2003 to December 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Faress Rahman; Nguyen Minh

2004-01-04T23:59:59.000Z

38

Distributed Generation Study/Patterson Farms CHP System Using Renewable  

Open Energy Info (EERE)

Farms CHP System Using Renewable Farms CHP System Using Renewable Biogas < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Field Test Technology Internal Combustion Engine Prime Mover Caterpillar G379 Heat Recovery Systems Built-in Fuel Biogas System Installer Martin Machinery System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 200 kW0.2 MW 200,000 W 200,000,000 mW 2.0e-4 GW 2.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1366072 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Custom Made Component Integration Customer Assembled Start Date 2007/05/02 Monitoring Termination Date 2007/05/26

39

Reliability Improvement Programs in Steam Distribution and Power Generation Systems  

E-Print Network (OSTI)

This paper will present alternatives to costly corrective maintenance of the steam trap and condensate return system, and the paybacks associated with instituting a program of planned maintenance management of that system. Energy costs can be reduced by 10% and maintenance costs by 20%, while achieving other tangible improvements in the reliability and efficiency of the system. Recent studies have shown that more than 40% of all installed steam traps and 20% of certain types of valves need some form of corrective action. The majority of all high backpressure problems in condensate return systems are due to poor design criteria. in expandlng or retrofitting existing return systems. By instituting a maintenance management program, a 95% reliability can be gained within two to four annual maintenance cycles. The associated operational problems can be greatly reduced. The maintenance management concept involves: 1) centralized project management; 2) diagnostic and inspection expertise; 3) system troubleshooting; 4) data analysis, reporting and recommendations; 5) maintenance repairs and follow-up; and 6) software and data base management. Several case studies, in which the concept has been successfully applied, will be presented. Energy costs, which have been on the rise for the past ten years, have now leveled off due to global supply and demand issues. But that is not true of the costs to maintain capital equipment such as steam distribution and power generation systems. Those costs continue to rise. If the basic principles of maintenance management are applied, when upgrading poorly maintained steam systems, those upgraded systems can be a fast payback of savings in energy, manpower and inventory. Three major areas where the savings can be gained are the steam traps, valve and condensate return systems. Such systems can be found in power generation, steam distribution, and in all types of durable and non-durable industrial productions.

Petto, S.

1987-09-01T23:59:59.000Z

40

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

DOE Green Energy (OSTI)

This report summarizes the work performed by Honeywell during the October 2001 to December 2001 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. The conceptual and demonstration system designs were proposed and analyzed, and these systems have been modeled in Aspen Plus. Work has also started on the assembly of dynamic component models and the development of the top-level controls requirements for the system. SOFC stacks have been fabricated and performance mapping initiated.

Kurt Montgomery; Nguyen Minh

2003-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC during the January 2003 to June 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. This report summarizes the results obtained to date on: System performance analysis and model optimization; Reliability and cost model development; System control including dynamic model development; Heat exchanger material tests and life analysis; Pressurized SOFC evaluation; and Pre-baseline system definition for coal gasification fuel cell system concept.

Faress Rahman; Nguyen Minh

2003-07-01T23:59:59.000Z

42

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Honeywell during the January 2002 to March 2002 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. For this reporting period the following activities have been carried out: {lg_bullet} Conceptual system design trade studies were performed {lg_bullet} System-level performance model was created {lg_bullet} Dynamic control models are being developed {lg_bullet} Mechanical properties of candidate heat exchanger materials were investigated {lg_bullet} SOFC performance mapping as a function of flow rate and pressure was completed

Nguyen Minh

2002-03-31T23:59:59.000Z

43

Distributed Generation Systems Inc DISGEN | Open Energy Information  

Open Energy Info (EERE)

DISGEN DISGEN Jump to: navigation, search Name Distributed Generation Systems Inc (DISGEN) Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of Green Mountain (10.4 MW) and Ponnequin (16 MW) wind generation projects in the US. Manages everything from site selection through construction. Coordinates 45.300538°, -88.522572° 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":45.300538,"lon":-88.522572,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

44

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

DOE Green Energy (OSTI)

This report summarizes the work performed by Honeywell during the July 2001 to September 2001 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. An internal program kickoff was held at Honeywell in Torrance, CA. The program structure was outlined and the overall technical approach for the program was presented to the team members. Detail program schedules were developed and detailed objectives were defined. Initial work has begun on the system design and pressurized SOFC operation.

Unknown

2002-03-01T23:59:59.000Z

45

Modeling and Verification of Distributed Generation and Voltage Regulation Equipment for Unbalanced Distribution Power Systems; Annual Subcontract Report, June 2007  

Science Conference Proceedings (OSTI)

This report summarizes the development of models for distributed generation and distribution circuit voltage regulation equipment for unbalanced power systems and their verification through actual field measurements.

Davis, M. W.; Broadwater, R.; Hambrick, J.

2007-07-01T23:59:59.000Z

46

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) under Cooperative Agreement DE-FC2601NT40779 for the US Department of Energy, National Energy Technology Laboratory (DoE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a gas turbine. A conceptual hybrid system design was selected for analysis and evaluation. The selected system is estimated to have over 65% system efficiency, a first cost of approximately $650/kW, and a cost of electricity of 8.4 cents/kW-hr. A control strategy and conceptual control design have been developed for the system. A number of SOFC module tests have been completed to evaluate the pressure impact to performance stability. The results show that the operating pressure accelerates the performance degradation. Several experiments were conducted to explore the effects of pressure on carbon formation. Experimental observations on a functioning cell have verified that carbon deposition does not occur in the cell at steam-to-carbon ratios lower than the steady-state design point for hybrid systems. Heat exchanger design, fabrication and performance testing as well as oxidation testing to support heat exchanger life analysis were also conducted. Performance tests of the prototype heat exchanger yielded heat transfer and pressure drop characteristics consistent with the heat exchanger specification. Multicell stacks have been tested and performance maps were obtained under hybrid operating conditions. Successful and repeatable fabrication of large (>12-inch diameter) planar SOFC cells was demonstrated using the tape calendering process. A number of large area cells and stacks were successfully performance tested at ambient and pressurized conditions. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Integrated gasification fuel cell systems or IGFCs were developed and analyzed for plant sizes in excess of 200 MW. Two alternative integration configurations were selected with projected system efficiency of over 53% on a HHV basis, or about 10 percentage points higher than that of the state-of-the-art Integrated Gasification Combined Cycle (IGCC) systems.

Nguyen Minh

2005-12-01T23:59:59.000Z

47

Distributed Generation System Characteristics and Costs in the...  

Gasoline and Diesel Fuel Update (EIA)

on-site generation of energy, often electricity from renewable energy systems such as solar photovoltaics (PV) and small wind turbines. Many factors influence the market for...

48

Distributed generation capabilities of the national energy modeling system  

SciTech Connect

This report describes Berkeley Lab's exploration of how the National Energy Modeling System (NEMS) models distributed generation (DG) and presents possible approaches for improving how DG is modeled. The on-site electric generation capability has been available since the AEO2000 version of NEMS. Berkeley Lab has previously completed research on distributed energy resources (DER) adoption at individual sites and has developed a DER Customer Adoption Model called DER-CAM. Given interest in this area, Berkeley Lab set out to understand how NEMS models small-scale on-site generation to assess how adequately DG is treated in NEMS, and to propose improvements or alternatives. The goal is to determine how well NEMS models the factors influencing DG adoption and to consider alternatives to the current approach. Most small-scale DG adoption takes place in the residential and commercial modules of NEMS. Investment in DG ultimately offsets purchases of electricity, which also eliminates the losses associated with transmission and distribution (T&D). If the DG technology that is chosen is photovoltaics (PV), NEMS assumes renewable energy consumption replaces the energy input to electric generators. If the DG technology is fuel consuming, consumption of fuel in the electric utility sector is replaced by residential or commercial fuel consumption. The waste heat generated from thermal technologies can be used to offset the water heating and space heating energy uses, but there is no thermally activated cooling capability. This study consists of a review of model documentation and a paper by EIA staff, a series of sensitivity runs performed by Berkeley Lab that exercise selected DG parameters in the AEO2002 version of NEMS, and a scoping effort of possible enhancements and alternatives to NEMS current DG capabilities. In general, the treatment of DG in NEMS is rudimentary. The penetration of DG is determined by an economic cash-flow analysis that determines adoption based on the n umber of years to a positive cash flow. Some important technologies, e.g. thermally activated cooling, are absent, and ceilings on DG adoption are determined by some what arbitrary caps on the number of buildings that can adopt DG. These caps are particularly severe for existing buildings, where the maximum penetration for any one technology is 0.25 percent. On the other hand, competition among technologies is not fully considered, and this may result in double-counting for certain applications. A series of sensitivity runs show greater penetration with net metering enhancements and aggressive tax credits and a more limited response to lowered DG technology costs. Discussion of alternatives to the current code is presented in Section 4. Alternatives or improvements to how DG is modeled in NEMS cover three basic areas: expanding on the existing total market for DG both by changing existing parameters in NEMS and by adding new capabilities, such as for missing technologies; enhancing the cash flow analysis but incorporating aspects of DG economics that are not currently represented, e.g. complex tariffs; and using an external geographic information system (GIS) driven analysis that can better and more intuitively identify niche markets.

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

49

Intelligent robust control of hybrid distributed generation system under voltage sag  

Science Conference Proceedings (OSTI)

In this paper, design of control strategy for hybrid fuel cell/energy storage distributed power generation system during voltage sag has been presented. The proposed control strategy allows hybrid distributed generation system works properly when a voltage ... Keywords: Energy storage, Fuel cell, Fuzzy sliding control, Hybrid distributed generation, Lyapanov, Neuro-fuzzy, Voltage sag

Amin Hajizadeh; Masoud Aliakbar Golkar

2010-12-01T23:59:59.000Z

50

Distributed Generation  

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

with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie...

51

Some Aspects of Distribution System Planning in the Context of Investment in Distributed Generation.  

E-Print Network (OSTI)

??A paradigm shift in distribution system design and planning is being led by the deregulation of the power industry and the increasing adoption of distributed… (more)

Wong, Steven M.

2009-01-01T23:59:59.000Z

52

Modeling of Doubly Fed Induction Generators for Distribution System Power Flow Analysis.  

E-Print Network (OSTI)

??Large-scale integration of Wind Generators (WGs) with distribution systems is underway right across the globe in a drive to harness green energy. The Doubly Fed… (more)

Dadhania, Amitkumar

2010-01-01T23:59:59.000Z

53

Simulation of Stability Analysis for Distribution Systems with Dispersed Generation Using Matlab/Simulink.  

E-Print Network (OSTI)

??This thesis is to investigate the voltage sag, transient stability and operation feasibility of power islanding with different types of dispersed generation in distribution systems.… (more)

Huang, Kun-Cyuan

2005-01-01T23:59:59.000Z

54

Distributed generation capabilities of the national energy modeling system  

E-Print Network (OSTI)

and Renewable Energy, Distributed Energy and ElectricPrepared for the Distributed Energy and Electric Reliabilityand Renewable Energy, Distributed Energy and Electric

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

55

Control of Combined Storage and Generation in Dynamic Distribution Systems  

E-Print Network (OSTI)

Battery energy storage units provide an added degree of freedom to a microgrid that allows time-shifting between the generation and use of energy. Microgrid energy storage elements are very similar to any other inverter-based source with the exception of bi-directional power flow capabilities. Having the ability to generate and accept power means that the demand and the supply can be disparate by as far as the power capabilities of the energy storage unit allow. This enables combined heat power systems to support a heat load demand independent of local electric power demand. Having an energy storage element on standby also allows for a certain amount of immediately available power to reduce the need for idling or lightly loaded rotating generators under the n-1 stability criterion. The relative speed of any inverter based source allows a sub-cycle change in power output to ensure that dynamic loads will be supplied regardless of the slow reaction of larger rotating sources that require seconds of response time to transients. Thirdly, they can act as a UPS system during grid faults, providing backup power for some time even for non-essential loads while the microgrid is islanded. Lastly, the energy storage element can provide an economic and/or logistical advantage by

Certs Microgrid; Robert Lasseter; Micah Erickson

2009-01-01T23:59:59.000Z

56

Novel Distributed Generation Control and Dispatching System: Application Validation and Benefits Quantification  

Science Conference Proceedings (OSTI)

This report describes a novel control and dispatching hardware/software system for distributed generation. The system allows the connection of multiple generators at a number of sites to a utility control and monitoring system for the purpose of providing peaking power for the utility. Using distributed generation for this purpose is a potentially cost-effective solution to localized power system constraints caused by the inability to increase power transmission into an area experiencing steady growth in...

2002-10-01T23:59:59.000Z

57

A Study of Distributed Generation System Characteristics and Protective Load Control Strategy  

E-Print Network (OSTI)

turbines: Doubly-fed Induction Generator (DFIG) and Fixed-speed Wind Turbine (FSWT) are compared), Distributed Generation System (DGS), Doubly- fed Induction Generator (DFIG), Fixed-speed Wind Turbine (FSWT (FSWT) and doubly-fed induction generator wind turbine (DFIG) have different characteristics, when

Chen, Zhe

58

Financing Distributed Generation  

DOE Green Energy (OSTI)

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

Walker, A.

2001-06-29T23:59:59.000Z

59

Financing Distributed Generation  

SciTech Connect

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

Walker, A.

2001-06-29T23:59:59.000Z

60

Photovoltaic generator modeling for large scale distribution system studies.  

E-Print Network (OSTI)

??Geographic regions with favorable conditions for photovoltaic (PHV) power generation are seeing increasing numbers of three-phase commercial installations and single-phase residential sized installations. PHV sources… (more)

Golder, Andrew S.

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Distributed generation capabilities of the national energy modeling system  

E-Print Network (OSTI)

Energy Information Administration Electricity Market Module of NEMS Geographic Information System(s) 10 9 (giga)watt 10 3 (kilo)watt Market Analysis

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

62

Distribution Screening for Distributed Generation  

Science Conference Proceedings (OSTI)

As the deployment of renewable distributed generation increases, the need for traditional energy providers to interact with these resources increases. Detailed modeling and simulation of the distribution and distributed resources is a critical element to better analyze, understand and predict these interactions. EPRI has developed a tool for such analysis called OpenDSS. In addition, as part of the renewable integration program an applet was created for screening distributed generation (DG). This report ...

2009-12-23T23:59:59.000Z

63

Distributed Generation Heat Recovery  

Science Conference Proceedings (OSTI)

Economic and environmental drivers are promoting the adoption of combined heat and power (CHP) systems. Technology advances have produced new and improved distributed generation (DG) units that can be coupled with heat recovery hardware to create CHP systems. Performance characteristics vary considerably among DG options, and it is important to understand how these characteristics influence the selection of CHP systems that will meet both electric and thermal site loads.

2002-03-06T23:59:59.000Z

64

Technology Assessment of Residential Power Systems for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

Significant research and development (R&D) investments in fuel cell technology have led to functioning prototypes of residential fuel power systems operating on natural gas. Efforts by at least four leading companies are expected to lead to early field trials of residential power systems in 2000 and early 2001, followed by pre-commercial prototypes during 2001-2002, and commercial introduction in the 2002-2005 time frame. Other technology companies are expected to follow suit.

2000-12-12T23:59:59.000Z

65

Reliability Improvement Programs in Steam Distribution and Power Generation Systems  

E-Print Network (OSTI)

This paper will present alternatives to costly corrective maintenance repairs of the steam trap and condensate return system, and the paybacks associated with instituting a program of planned and systematic maintenance management of that system. Energy costs can be reduced by 10% and maintenance costs by 20%, while achieving other tangible improvements in the reliability and efficiency of the system. Recent studies have shown that more than 40% of all installed steam traps and 20% of certain types of valves need some form of corrective action. The majority of all high backpressure problems in condensate return systems are due to poor design criteria in expanding or retrofitting existing return systems. By instituting a maintenance management program, a 95% reliability can be gained with two to four annual maintenance cycles. The associated operational problems can be greatly reduced. The maintenance management concept involves: 1) centralized project management; 2) diagnostic and inspection expertise; 3) system troubleshooting; 4) data analysis, reporting and recommendations; 5) maintenance repairs and follow-up; and 6)software and data base management. Several case studies, in which the concept has been successfully applied, will be presented.

Atlas, R. D.

1986-06-01T23:59:59.000Z

66

GASIFICATION FOR DISTRIBUTED GENERATION  

DOE Green Energy (OSTI)

A recent emphasis in gasification technology development has been directed toward reduced-scale gasifier systems for distributed generation at remote sites. The domestic distributed power generation market over the next decade is expected to be 5-6 gigawatts per year. The global increase is expected at 20 gigawatts over the next decade. The economics of gasification for distributed power generation are significantly improved when fuel transport is minimized. Until recently, gasification technology has been synonymous with coal conversion. Presently, however, interest centers on providing clean-burning fuel to remote sites that are not necessarily near coal supplies but have sufficient alternative carbonaceous material to feed a small gasifier. Gasifiers up to 50 MW are of current interest, with emphasis on those of 5-MW generating capacity. Internal combustion engines offer a more robust system for utilizing the fuel gas, while fuel cells and microturbines offer higher electric conversion efficiencies. The initial focus of this multiyear effort was on internal combustion engines and microturbines as more realistic near-term options for distributed generation. In this project, we studied emerging gasification technologies that can provide gas from regionally available feedstock as fuel to power generators under 30 MW in a distributed generation setting. Larger-scale gasification, primarily coal-fed, has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries. Commercial-scale gasification activities are under way at 113 sites in 22 countries in North and South America, Europe, Asia, Africa, and Australia, according to the Gasification Technologies Council. Gasification studies were carried out on alfalfa, black liquor (a high-sodium waste from the pulp industry), cow manure, and willow on the laboratory scale and on alfalfa, black liquor, and willow on the bench scale. Initial parametric tests evaluated through reactivity and product composition were carried out on thermogravimetric analysis (TGA) equipment. These tests were evaluated and then followed by bench-scale studies at 1123 K using an integrated bench-scale fluidized-bed gasifier (IBG) which can be operated in the semicontinuous batch mode. Products from tests were solid (ash), liquid (tar), and gas. Tar was separated on an open chromatographic column. Analysis of the gas product was carried out using on-line Fourier transform infrared spectroscopy (FT-IR). For selected tests, gas was collected periodically and analyzed using a refinery gas analyzer GC (gas chromatograph). The solid product was not extensively analyzed. This report is a part of a search into emerging gasification technologies that can provide power under 30 MW in a distributed generation setting. Larger-scale gasification has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries, and it is probable that scaled-down applications for use in remote areas will become viable. The appendix to this report contains a list, description, and sources of currently available gasification technologies that could be or are being commercially applied for distributed generation. This list was gathered from current sources and provides information about the supplier, the relative size range, and the status of the technology.

Ronald C. Timpe; Michael D. Mann; Darren D. Schmidt

2000-05-01T23:59:59.000Z

67

Distributed Photovoltaic Generation in Residential Distribution Systems: Impacts on Power Quality and Anti-islanding.  

E-Print Network (OSTI)

??The past few decades have seen a consistent growth of distributed PV sources. Distributed PV, like other DG sources, can be located at or near… (more)

Mitra, Parag

2013-01-01T23:59:59.000Z

68

Ionic Liquids for Utilization of Waste Heat from Distributed Power Generation Systems  

Science Conference Proceedings (OSTI)

The objective of this research project was the development of ionic liquids to capture and utilize waste heat from distributed power generation systems. Ionic Liquids (ILs) are organic salts that are liquid at room temperature and they have the potential to make fundamental and far-reaching changes in the way we use energy. In particular, the focus of this project was fundamental research on the potential use of IL/CO2 mixtures in absorption-refrigeration systems. Such systems can provide cooling by utilizing waste heat from various sources, including distributed power generation. The basic objectives of the research were to design and synthesize ILs appropriate for the task, to measure and model thermophysical properties and phase behavior of ILs and IL/CO2 mixtures, and to model the performance of IL/CO2 absorption-refrigeration systems.

Joan F. Brennecke; Mihir Sen; Edward J. Maginn; Samuel Paolucci; Mark A. Stadtherr; Peter T. Disser; Mike Zdyb

2009-01-11T23:59:59.000Z

69

Distributed Generation Planning for Loss and Cost Minimisation in Power Distribution Systems.  

E-Print Network (OSTI)

??In this thesis, a method based on a sensitivity analysis and quadratic curve-fitting technique for power loss reduction in a low-voltage distribution area is proposed.… (more)

Anwar, Adnan

2012-01-01T23:59:59.000Z

70

Onsite Distributed Generation Systems For Laboratories, Laboratories for the 21st Century: Best Practices (Brochure)  

DOE Green Energy (OSTI)

This guide provides general information on implementing onsite distributed generation systems in laboratory environments. Specific technology applications, general performance information, and cost data are provided to educate and encourage laboratory energy managers to consider onsite power generation or combined heat and power (CHP) systems for their facilities. After conducting an initial screening, energy managers are encouraged to conduct a detailed feasibility study with actual cost and performance data for technologies that look promising. Onsite distributed generation systems are small, modular, decentralized, grid-connected, or off-grid energy systems. These systems are located at or near the place where the energy is used. These systems are also known as distributed energy or distributed power systems. DG technologies are generally considered those that produce less than 20 megawatts (MW) of power. A number of technologies can be applied as effective onsite DG systems, including: (1) Diesel, natural gas, and dual-fuel reciprocating engines; (2) Combustion turbines and steam turbines; (3) Fuel cells; (4) Biomass heating; (5) Biomass combined heat and power; (6) Photovoltaics; and (7) Wind turbines. These systems can provide a number of potential benefits to an individual laboratory facility or campus, including: (1) High-quality, reliable, and potentially dispatchable power; (2) Low-cost energy and long-term utility cost assurance, especially where electricity and/or fuel costs are high; (3) Significantly reduced greenhouse gas (GHG) emissions. Typical CHP plants reduce onsite GHG by 40 to 60 percent; (4) Peak demand shaving where demand costs are high; (5) CHP where thermal energy can be used in addition to electricity; (6) The ability to meet standby power needs, especially where utility-supplied power is interrupted frequently or for long periods and where standby power is required for safety or emergencies; and (7) Use for standalone or off-grid systems where extending the grid is too expensive or impractical. Because they are installed close to the load, DG systems avoid some of the disadvantages of large, central power plants, such as transmission and distribution losses over long electric lines.

Not Available

2011-09-01T23:59:59.000Z

71

Direct current distribution systems for residential areas powered by distributed generation.  

E-Print Network (OSTI)

??Power system began its journey with DC power as pioneered by Edison. However, this was soon rivalled by AC power and ultimately DC paradigm found… (more)

Dastgeer, Faizan

2011-01-01T23:59:59.000Z

72

Development, Demonstration, and Field Testing of Enterprise-Wide Distributed Generation Energy Management System: Final Report  

DOE Green Energy (OSTI)

This report details progress on subcontract NAD-1-30605-1 between the National Renewable Energy Laboratory and RealEnergy (RE), the purpose of which is to describe RE's approach to the challenges it faces in the implementation of a nationwide fleet of clean cogeneration systems to serve contemporary energy markets. The Phase 2 report covers: utility tariff risk and its impact on market development; the effect on incentives on distributed energy markets; the regulatory effectiveness of interconnection in California; a survey of practical field interconnection issues; trend analysis for on-site generation; performance of dispatch systems; and information design hierarchy for combined heat and power.

Greenberg, S.; Cooley, C.

2005-01-01T23:59:59.000Z

73

Modeling, control, and power management of a power electrical system including two distributed generators based on fuel cell and supercapacitor  

Science Conference Proceedings (OSTI)

This paper focuses on Distributed Generator (DG) integration in Power Electrical System (PES) for dispersed nodes. The main objective of the DG use can be classified into two aspects: a load following service and ancillary service systems. In this study

2013-01-01T23:59:59.000Z

74

Laboratories for the 21st Century: Best Practices (Brochure): Onsite Distributed Generation Systems For Laboratories  

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

L L a b o r a t o r i e s f o r t h e 2 1 s t C e n t u r y : B e s t P r a c t i c e s This combined heat and power system at the Bristol-Myers Squibb laboratory in Wallingford, Connecticut, could meet 100% of the lab's power requirement, if necessary. Bernard Blesinger / PIX 12552 ONSITE DISTRIBUTED GENERATION SYSTEMS FOR LABORATORIES Introduction Laboratories have unique requirements for lighting, ventilation, and scientific equipment with each requiring a considerable amount of energy. The reliability of that energy is very important. Laboratories must be able to conduct research without power interruptions, which can damage both equipment and experiments. Generating power and heat on site is one good way to enhance energy reliability, improve fuel utilization efficiency, reduce utility costs,

75

Distributed Generation Biofuel Testing  

Science Conference Proceedings (OSTI)

This Technical Update report documents testing performed to assess aspects of using biofuel as an energy source for distributed generation. Specifically, the tests involved running Caterpillar Power Module compression ignition engines on palm methyl ester (PME) biofuel and comparing the emissions to those of the same engines running on ultra-low-sulfur diesel fuel. Fuel consumption and energy efficiency were also assessed, and some relevant storage and handling properties of the PME were noted. The tests...

2011-12-06T23:59:59.000Z

76

Distributed Generation Study/615 kW Waukesha Packaged System | Open Energy  

Open Energy Info (EERE)

kW Waukesha Packaged System kW Waukesha Packaged System < Distributed Generation Study Jump to: navigation, search Study Location Des Plaines, Illinois Site Description Testing Laboratory Study Type Laboratory Test Technology Internal Combustion Engine Prime Mover Waukesha VGF 36GLD Heat Recovery Systems Sondex PHE-Type SL140-TM-EE-190, Sondex PHE-Type SL140-TM-EE-150, Cain UTR1-810A17.5SSP Fuel Natural Gas System Installer GTI System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 615 kW0.615 MW 615,000 W 615,000,000 mW 6.15e-4 GW 6.15e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2500000 Cooling Capacity (Refrig/Tons) 90 Origin of Controller 3rd Party Off-the-Shelf Component Integration Factory Integrated

77

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

L ABORATORY Distributed Generation with Heat Recovery andequal opportunity employer. Distributed Generation with Heatenergy resources (DER), distributed generation (DG), and

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

78

Islanded operation of a distribution feeder with distributed generation.  

E-Print Network (OSTI)

??A distribution system that is equipped with distributed generators, such as roof-mounted photovoltaic systems, can operate as a microgrid (i.e., separated from the grid) under… (more)

Venu, Chandu

2009-01-01T23:59:59.000Z

79

A Technique to Utilize Smart Meter Load Information for Adapting Overcurrent Protection for Radial Distribution Systems with Distributed Generations  

E-Print Network (OSTI)

Smart radial distribution grids will include advanced metering infrastructure (AMI) and significant distributed generators (DGs) connected close to loads. DGs in these radial distribution systems (RDS) introduce bidirectional power flows (BPFs) and contribute to fault current. These BPFs may cause unwanted tripping of existing overcurrent (OC) protection devices and result in permanent outages for a large number of customers. This thesis presents a protection approach that modified an existing overcurrent protection scheme to reduce the number of customers affected by faults in RDS with DGs. Further, a technique is presented that utilizes customers loading information from smart meters in AMI to improve the sensitivity of substation OC relays by adaptively changing the pickup settings. The modified protection approach involves predefining zones in RDS with DGs and installing directional OC relays and circuit breakers at the zonal boundaries. Zonal boundary relays determine faulted zones by sharing information on the direction of detected faults current using binary state signals over a communication medium. The technique to adapt the substation relay pickup settings uses the demand measurements from smart meters for two 12-hour intervals from the previous day to determine the maximum diversified demand at the relay?s location. The pickup settings of the substation relay for the two 12-hour intervals during the following day for the zone supplied by the substation are adaptively set based on the current that corresponds to the maximum diversified demand from the previous day. The techniques were validated through simulations in EMTP/PSCAD using an expanded IEEE 34 node radial test feeder that included DGs and a secondary distribution level. By decentralizing the control of the zonal boundary breakers, the single point of failure was eliminated in the modified protection approach. The cases studied showed that the modified protection approach allows for selective identification and isolation of the faulted zones. Also, the sensitivity of the substation OC relay was improved by at least 24% by using the pickup settings for the two 12-hour intervals from the smart meter demand measurements compared to the pickup settings computed using the conventional methodology based on the maximum loading of the zone.

Ituzaro, Fred Agyekum

2012-05-01T23:59:59.000Z

80

EPRI First-Generation Advanced Radial Feeder for the Distribution System of the Future  

Science Conference Proceedings (OSTI)

This report describes a design for integrating distributed generation (DG) on a radial feeder, amounting to 75% of the feeder's peak load. A standard IEEE radial test feeder was used for the study, which was conducted using software tools readily available to utilities. Distributed Network Protocol (DNP3) to IEC 61850 mappings were developed to enable adaptive voltage control on the feeder. This type of automation to enable the strategic use of DG has not been implemented before.

2006-12-20T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Power Quality Impacts of Distributed Generation  

Science Conference Proceedings (OSTI)

Distribution systems are designed for one-way power flow and can accommodate only a limited amount of distributed generation (DG) without alterations. This project focused on the economics associated with upgrading and designing distribution systems to support widespread integration of distributed resources, especially distributed generation. Costs were determined in the area of protection requirements and voltage regulation requirements, two of the main areas where changes are required to accommodate DG.

2005-03-22T23:59:59.000Z

82

EIA - Distributed Generation in Buildings  

U.S. Energy Information Administration (EIA)

Modeling Distributed Generation in the Buildings Sectors . Supplement to the Annual Energy Outlook 2013 — Release date: August 29, 2013

83

Distributed Generation Status Update  

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

0 DOE Peer Review Presentation 0 DOE Peer Review Presentation © Chevron 2010 CERTS Microgrid Demonstration with Large scale Energy Storage & Renewable Generation November 5, 2010 Presented By: Craig Gee, Project Manager (for Mr. Eduardo Alegria - Principal Investigator) Energy Solutions November 2010 DOE Peer Review Presentation © Chevron 2010 Agenda * Introduction - Who we are * Project Team & Site * Project Purpose & Objectives * Project Impacts * System Elements * Project Status * Research Elements * Recent Developments in California * Questions & Comments November 2010 DOE Peer Review Presentation © Chevron 2010 Chevron Energy Solutions Designed & Implemented over 900 Projects in the U.S.  Chevron ES, a division of Chevron USA, Inc. is committed to delivering economically & environmentally advantageous green

84

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-08-07T23:59:59.000Z

85

Strategic Intelligence Update: Distributed Generation & Energy Storage  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-12-17T23:59:59.000Z

86

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-06-22T23:59:59.000Z

87

Strategic Intelligence Update: Distributed Generation & Energy Storage  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-10-08T23:59:59.000Z

88

EIA - Distributed Generation in Buildings  

Gasoline and Diesel Fuel Update (EIA)

Previous reports Previous reports Distributed Generation in Buildings - AEO2005 Modeling Distributed Electricity Generation in the NEMS Buildings Models - July 2002 Modeling Distributed Generation in the Buildings Sectors Supplement to the Annual Energy Outlook 2013 - Release date: August 29, 2013 Distributed and dispersed generation technologies generate electricity near the particular load they are intended to serve, such as a residential home or commercial building. EIA defines distributed generation (DG) as being connected to the electrical grid and intended to directly offset retail sales, and dispersed generation as being off-grid and often used for remote applications where grid-connected electricity is cost-prohibitive. Dispersed generation in the buildings sector is not currently gathered by

89

City of San Marcos - Distributed Generation Rebate Program (Texas...  

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

a Distributed Generation Rebate Program for the installation of grid-tied renewable energy systems. The Distributed Generation Rebate Program is offered on a first-come...

90

Impact of Renewable Distributed Generation on Power Systems M. Begovi, A. Pregelj, A. Rohatgi D. Novosel  

E-Print Network (OSTI)

, improve the voltage profile across the feeder, may reduce the loading level of branches and substation the effect of DG penetration on the actual load demand and voltage profile of the distribution feeder. However, DG systems inherently provide some benefits to the utility. They may level the load curve

91

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

Distributed Generation with Heat Recovery and Storage ‡energy resources (DER), distributed generation (DG), andload of Figure 2. distributed generation of part or all of

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-01-01T23:59:59.000Z

92

Operation of Distributed Generation Under Stochastic Prices  

E-Print Network (OSTI)

Operation of Distributed Generation Under Stochastic PricesOPERATION OF DISTRIBUTED GENERATION UNDER STOCHASTIC PRICESwith either on-site distributed generation (DG) or purchases

Siddiqui, Afzal S.; Marnay, Chris

2005-01-01T23:59:59.000Z

93

CONSULTANT REPORT DISTRIBUTED GENERATION  

E-Print Network (OSTI)

, renewables, interconnection, integration, electricity, distribution, transmission, costs. Please use Coldwell Project Manager Ivin Rhyne Office Manager Electricity Analysis Office Sylvia Bender Deputy Director Electricity Supply Analysis Division Robert P. Oglesby Executive Director DISCLAIMER

94

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2012-05-24T23:59:59.000Z

95

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2012-03-20T23:59:59.000Z

96

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2012-07-31T23:59:59.000Z

97

Report on Distributed Generation Penetration Study  

Science Conference Proceedings (OSTI)

This report documents part of a multiyear research program dedicated to the development of requirements to support the definition, design, and demonstration of a distributed generation-electric power system interconnection interface concept. The report focuses on the dynamic behavior of power systems when a significant portion of the total energy resource is distributed generation. It also focuses on the near-term reality that the majority of new DG relies on rotating synchronous generators for energy conversion.

Miller, N.; Ye, Z.

2003-08-01T23:59:59.000Z

98

DISTRIBUTED GENERATION AND COGENERATION POLICY  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION DISTRIBUTED GENERATION AND COGENERATION POLICY ROADMAP FOR CALIFORNIA;ABSTRACT This report defines a year 2020 policy vision for distributed generation and cogeneration and cogeneration. Additionally, this report describes long-term strategies, pathways, and milestones to take

99

Microgrid with distributed generators.  

E-Print Network (OSTI)

??The principal aim of this project is to study the energy production by solar energy system in close to the consumers and integrated into a… (more)

Yii, See Mee

2009-01-01T23:59:59.000Z

100

Power Quality Impacts of Distributed Generation: Guidelines  

Science Conference Proceedings (OSTI)

With the advent of deregulation, distributed generation (DG) will play an increasing role in electric distribution systems. This report addresses the issue of integrating DG into the electric power system in a way that assures power quality in the grid and at end-use customer facilities.

2000-12-06T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Distribution System Research Priorities  

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

Mark McGranaghan Mark McGranaghan EPRI ELECTRICITY DISTRIBUTION SYSTEM WORKSHOP Crystal City, VA September 24, 2012 Distribution System Research Priorities 2 © 2012 Electric Power Research Institute, Inc. All rights reserved. The Power System Roadmaps start with a Vision Future Power System will require new technologies, infrastructure, and control systems 3 © 2012 Electric Power Research Institute, Inc. All rights reserved. R&D Roadmaps - Coordination is Critical Roadmaps are living documents 4 © 2012 Electric Power Research Institute, Inc. All rights reserved. Developing the next generation grid * Industry needs new technologies, communication protocols, and information management methods - More variable generation sources and controllable loads - Aging infrastructure

102

A Multi-State Model for the Reliability Assessment of a Distributed Generation System via Universal Generating Function  

E-Print Network (OSTI)

the power output of one solar module u-function of the power output of one solar module, Number of functioning solar modules in the solar generator Power output of a single solar module at solar irradiance-function of the mechanical condition of one renewable generator, Random variable representing the power output of a solar

103

Smooth distributions are finitely generated  

E-Print Network (OSTI)

A subbundle of variable dimension inside the tangent bundle of a smooth manifold is called a smooth distribution if it is the pointwise span of a family of smooth vector fields. We prove that all such distributions are finitely generated, meaning that the family may be taken to be a finite collection. Further, we show that the space of smooth sections of such distributions need not be finitely generated as a module over the smooth functions. Our results are valid in greater generality, where the tangent bundle may be replaced by an arbitrary vector bundle.

Drager, Lance D; Park, Efton; Richardson, Ken

2010-01-01T23:59:59.000Z

104

Abatement of Air Pollution: Distributed Generators (Connecticut) |  

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

Distributed Generators (Connecticut) Distributed Generators (Connecticut) Abatement of Air Pollution: Distributed Generators (Connecticut) < 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 Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Connecticut Program Type Environmental Regulations Provider Department of Energy and Environmental Protection

105

Control of z-source inverter topologies for distributed generation systems.  

E-Print Network (OSTI)

??In meeting ever increasing energy demand, it is important to do continuous research in energy sources, their efficient use and distribution of energy. Due to… (more)

Chandana Jayampathi Gajanayake.

2009-01-01T23:59:59.000Z

106

Energy Storage Solutions for Wind Generator Connected Distribution Systems in Rural Ontario.  

E-Print Network (OSTI)

??Environmental awareness and uncertainty about continued supply of fossil fuel has given rise to the renewable energy movement. Wind based power generation has been at… (more)

Rahman, Mohammed Nahid

2009-01-01T23:59:59.000Z

107

Generation, distribution and utilization of electrical energy  

SciTech Connect

An up-to-date account of electric power generation and distribution (including coverage of the use of computers in various components of the power system). Describes conventional and unconventional methods of electricity generation and its economics, distribution methods, substation location, electric drives, high frequency power for induction and heating, illumination engineering, and electric traction. Each chapter contains illustrative worked problems, exercises (some with answers), and a bibliography.

Wadhwa, C.L.

1989-01-01T23:59:59.000Z

108

An Investigation of the Utilization of Smart Meter Data to Adapt Overcurrent Protection for Radial Distribution Systems with a High Penetration of Distributed Generation  

E-Print Network (OSTI)

The future of electric power distribution systems (DSs) is one that incorporates extensive amounts of advanced metering, distribution automation, and distributed generation technologies. Most DSs were designed to be radial systems and the major philosophies of their protection, namely, selectivity and sensitivity, were easily achieved. Settings for overcurrent protective devices (OCPDs) were static and based on the maximum load downstream of its location, with little concern of major configuration changes. However, the integration of distribution generators (DGs) in radial distributions systems (RDSs) causes bidirectional power flows and varying short circuit currents to be sensed by protective devices, thereby affecting these established protection principles. Several researchers have investigated methods to preserve the selectivity of overcurrent protection coordination in RDSs with DGs, but at the expense of protective device sensitivity due to an inherent change in system configuration. This thesis presents an investigation to adapt the pickup settings of the substation relay, based on configuration changes in a DS with DGs, using smart meter data from the prior year. An existing protection scheme causes the faulted areas of DSs with DGs to revert to a radial configuration, thereby allowing conventional OCPDs to isolate faults. Based on the location of the fault, the created radial segments are known and vary in length. The proposed methodology involves using demand information available via smart metering, to determine the seasonal maximum diversified demands in each of the radial segments that are formed. These seasonal maximum diversified demands are used to yield several pickup settings for the substation overcurrent relay of the DS. The existing protection approach enables the selectivity of radial overcurrent protection coordination to be maintained; the sensitivity of the substation relay is improved by adapting its pickup settings based on seasonal demand and system configuration changes. The results of the studies are reported through simulation in EMTP™ /PSCAD® using a multi-feeder test system that includes DGs and smart meters located at the secondary distribution load level. The results show that using seasonal settings for the substation relay based on configuration changes in a DS with DGs can improve the sensitivity of the substation relay.

Douglin, Richard Henry

2012-05-01T23:59:59.000Z

109

A review of agent-based models for forecasting the deployment of distributed generation in energy systems  

Science Conference Proceedings (OSTI)

Agent-based models are seeing increasing use in the study of distributed generation (DG) deployment. Researchers and decision makers involved in the implementation of DG have been lacking a concise overview of why they should consider using agent-based ... Keywords: agent-based modeling, consumer behavior, distributed generation, energy forecasting, product deployment

Jason G. Veneman; M. A. Oey; L. J. Kortmann; F. M. Brazier; L. J. de Vries

2011-06-01T23:59:59.000Z

110

Protection of distributed generation interfaced networks.  

E-Print Network (OSTI)

??With the rapid increase in electrical energy demand, power generation in the form of distributed generation is becoming more important. However, the connections of distributed… (more)

Dewadasa, Jalthotage Manjula Dinesh

2010-01-01T23:59:59.000Z

111

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

Electricity generated by distributed energy resources (DER)Energy, Office of Distributed Energy of the US Department ofdefined names including distributed energy resources (DER),

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-01-01T23:59:59.000Z

112

Definition: Distributed generation | Open Energy Information  

Open Energy Info (EERE)

generation generation Jump to: navigation, search Dictionary.png Distributed generation A term used by the power industry to describe localized or on-site power generation[1] View on Wikipedia Wikipedia Definition Distributed generation, also called on-site generation, dispersed generation, embedded generation, decentralized generation, decentralized energy or distributed energy, generates electricity from many small energy sources. Most countries generate electricity in large centralized facilities, such as fossil fuel, nuclear, large solar power plants or hydropower plants. These plants have excellent economies of scale, but usually transmit electricity long distances and can negatively affect the environment. Distributed generation allows collection of energy from many

113

Power Quality Impacts of Distributed Generation: Survey of Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

With the advent of deregulation, distributed generation (DG) will play an increasing role in electric distribution systems. Various new types of DG technologies, such as microturbines and fuel cells, now are being developed in addition to the more traditional solar and wind power. A common belief among developers is that DG will improve the local power quality. This potential for better quality is cited as one of the attributes that add value to the installation of distributed generators. In some cases, ...

2000-11-08T23:59:59.000Z

114

City of San Marcos- Distributed Generation Rebate Program (Texas)  

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

The City of San Marcos offers a Distributed Generation Rebate Program for the installation of grid-tied renewable energy systems. The Distributed Generation Rebate Program is offered on a first...

115

Reliable, Low-Cost Distributed Generator/Utility System Interconnect: Final Subcontract Report, November 2001-March 2004  

Science Conference Proceedings (OSTI)

This report summarizes the detailed study and development of new GE anti-islanding controls for two classes of distributed generation. One is inverter-interfaced, while the other is synchronous machine interfaced.

Ye, Z.; Walling, R.; Miller, N.; Du, P.; Nelson, K.; Li, L.; Zhou, R.; Garces, L.; Dame, M.

2006-03-01T23:59:59.000Z

116

Distributed Generation Dispatch Optimization under Various Electricity Tariffs  

E-Print Network (OSTI)

LBNL-54447. Distributed Generation Dispatch Optimizationrelated work. Distributed Generation Dispatch Optimization3 2.2 Distributed Generation

Firestone, Ryan; Marnay, Chris

2007-01-01T23:59:59.000Z

117

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

AS, Marnay, C. Distributed generation investment by aand Upgrade in Distributed Generation under Uncertaintyand Upgrade in Distributed Generation under Uncertainty ?

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

118

Air Quality Impact of Distributed Generation of Electricity  

E-Print Network (OSTI)

quality impact of distributed generation. California Energyquality impacts of distributed generation, Proceedings ofquality impacts of distributed generation, Proceedings of

Jing, Qiguo

2011-01-01T23:59:59.000Z

119

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Benefits of Distributed Generation. Unpublished draftto Establish a Distributed Generation Certification Program.Order: Establish a Distributed Generation Certification

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

120

Generating distributed entanglement from electron currents  

E-Print Network (OSTI)

Several recent experiments have demonstrated the viability of a passive device that can generate large spin-entangled currents in two separate leads. However, manipulation and measurement of flying qubits in a solid state system has never been achieved. In order to access such an entangled current resource, we therefore show how to use it to generate distributed, static entanglement. Our device is completely passive, and relies only on a weak interaction between static and flying spins. We show that the entanglement generated is robust to decoherence.

Ping, Yuting; Jefferson, John H; Lovett, Brendon W

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Optimal study of distributed generation impact on electrical distribution networks using GA and generalized reduced gradient  

Science Conference Proceedings (OSTI)

This paper presents the effect of Distributed Generators (DG) existence in the electrical power distribution networks taking IEEE 14 and IEEE 30 bus test feeders as proposed systems. The analysis is done to examine the effect on the overall system losses ... Keywords: IEEE 14 bus system, IEEE 30 bus system and optimization, distributed generator (DG), generalized reduced gradient (GRG), genetic algorithms (GA)

Samuel Raafat Fahim; Walid Helmy; Hany M. Hasanien; M. A. L. Badr

2011-03-01T23:59:59.000Z

122

Fuel Cell Power Model Version 2: Startup Guide, System Designs, and Case Studies. Modeling Electricity, Heat, and Hydrogen Generation from Fuel Cell-Based Distributed Energy Systems  

DOE Green Energy (OSTI)

This guide helps users get started with the U.S. Department of Energy/National Renewable Energy Laboratory Fuel Cell Power (FCPower) Model Version 2, which is a Microsoft Excel workbook that analyzes the technical and economic aspects of high-temperature fuel cell-based distributed energy systems with the aim of providing consistent, transparent, comparable results. This type of energy system would provide onsite-generated heat and electricity to large end users such as hospitals and office complexes. The hydrogen produced could be used for fueling vehicles or stored for later conversion to electricity.

Steward, D.; Penev, M.; Saur, G.; Becker, W.; Zuboy, J.

2013-06-01T23:59:59.000Z

123

Property:Distributed Generation Prime Mover | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:Distributed Generation Prime Mover Jump to: navigation, search Property Name Distributed Generation Prime Mover Property Type Page Description Make and model of power sources. Pages using the property "Distributed Generation Prime Mover" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Ingersoll Rand I-R PowerWorks 70 + Distributed Generation Study/615 kW Waukesha Packaged System + Waukesha VGF 36GLD + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Aisin Seiki G60 + Distributed Generation Study/Arrow Linen + Coast Intelligen 150-IC with ECS + Distributed Generation Study/Dakota Station (Minnegasco) + Capstone C30 +

124

Next-Generation Distributed Power Management for Photovoltaic...  

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

Office EETD Safety Program Development Contact Us Department Contacts Media Contacts Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth...

125

Distributed Generation and Virtual Power Plants: Barriers and Solutions.  

E-Print Network (OSTI)

??The present technological and regulatory power system needs to adapt to the increase in the share of distributed generation. This research focuses on the applicability… (more)

Olejniczak, T.

2011-01-01T23:59:59.000Z

126

Voltage Stability Analysis with High Distributed Generation (DG) Penetration.  

E-Print Network (OSTI)

??Interest in Distributed Generation (DG) in power system networks has been growing rapidly. This increase can be explained by factors such as environmental concerns, the… (more)

Al-Abri, Rashid

2012-01-01T23:59:59.000Z

127

ARPA-E Announces $30 Million for Distributed Generation Technologies...  

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

Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase...

128

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

On-site thermal power generation is typically less efficienthighly centralised power generation and delivery systemProduction from US Power Generation Note this is only the

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-01-01T23:59:59.000Z

129

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

selection of on-site power generation with combined heat andsingle-cycle thermal power generation is typically lesshighly centralized power generation and delivery system

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

130

Integrated Distributed Generation and Energy Storage Concepts  

Science Conference Proceedings (OSTI)

Distributed generation (DG) can provide users with versatile and cost effective solutions for many of their energy requirements. However, as these devices have begun to proliferate, there have been a number of load and power system compatibility concerns that have been identified. To better understand and address DG product improvement opportunities, this report details the capabilities and limitations of existing DG applications from the perspective of critical load starting and power quality support. I...

2003-01-20T23:59:59.000Z

131

Distribution Management Systems Planning Guide  

Science Conference Proceedings (OSTI)

No portion of the electric power grid has been impacted more significantly by the Smart Grid concept than the electric distribution system. In the past, the distribution portion of the system received little attention compared to transmission and generation systems unless the lights went out. Since the dawn of the smart grid era, many electric distribution utilities have transitioned from (or are in the process of transitioning from) a mostly manual, paper-driven business process to electronic ...

2013-03-22T23:59:59.000Z

132

Strategic Intelligence Update: Distributed Generation & Energy Storage, 1st Newsletter  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2008-06-11T23:59:59.000Z

133

Strategic Intelligence Update: Distributed Generation & Energy Storage, December 2008  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2008-12-12T23:59:59.000Z

134

Strategic Intelligence Update - Energy Storage & Distributed Generation: December 2010  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-12-14T23:59:59.000Z

135

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-08-05T23:59:59.000Z

136

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-10-15T23:59:59.000Z

137

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller scale distributed energy storage, on the order of a ...

2010-04-01T23:59:59.000Z

138

Microgrids: distributed on-site generation  

E-Print Network (OSTI)

Microgrids: distributed on-site generation Suleiman Abu-Sharkh, Rachel Li, Tom Markvart, Neil Ross for Climate Change Research Technical Report 22 #12;1 Microgrids: distributed on-site generation Tyndall production by small scale generators in close proximity to the energy users, integrated into microgrids

Watson, Andrew

139

Generating multivariate extreme value distributions  

E-Print Network (OSTI)

We define in a probabilistic way a parametric family of multivariate extreme value distributions. We derive its copula, which is a mixture of several complete dependent copulas and total independent copulas, and the bivariate tail dependence and extremal coefficients. Based on the obtained results for these coefficients, we propose a method to built multivariate extreme value distributions with prescribed tail/extremal coefficients. We illustrate the results with examples of simulation of these distributions.

Ferreira, Helena

2012-01-01T23:59:59.000Z

140

Distributed Generation and Resilience in Power Grids  

E-Print Network (OSTI)

We study the effects of the allocation of distributed generation on the resilience of power grids. We find that an unconstrained allocation and growth of the distributed generation can drive a power grid beyond its design parameters. In order to overcome such a problem, we propose a topological algorithm derived from the field of Complex Networks to allocate distributed generation sources in an existing power grid.

Scala, Antonio; Chessa, Alessandro; Caldarelli, Guido; Damiano, Alfonso

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Biogas-fueled Distributed Generation  

Science Conference Proceedings (OSTI)

This report is a case study of the use of digester gas produced at two wastewater treatment plants in Omaha, NE to fuel electric power generators.

2005-09-29T23:59:59.000Z

142

Regulatory Considerations for Developing Distributed Generation...  

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

Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar...

143

Invariant generators for generalized distributions and applications  

E-Print Network (OSTI)

The existence of invariant generators for locally finitely generated distributions satisfying a mild compatibility condition with the symmetry algebra is proved. This is applied to regular standard Dirac reduction.

Jotz, Madeleine

2009-01-01T23:59:59.000Z

144

A California Distributed Generation Primer: Interconnection and...  

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

California Distributed Generation Primer: Interconnection and Beyond Synopsis Speaker(s): Scott Tomashefsky Date: January 10, 2002 - 12:00pm Location: Bldg. 90 Seminar HostPoint...

145

Other Distributed Generation Technologies | Open Energy Information  

Open Energy Info (EERE)

Technologies Jump to: navigation, search TODO: Add description List of Other Distributed Generation Technologies Incentives Retrieved from "http:en.openei.orgw...

146

Integration of Demand Side Management, Distributed Generation...  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages:...

147

Distributed Wind Power Generation - National Renewable Energy ...  

Technology breakthrough in roof-top distributed wind power generation Multi-billion $ market opportunity in next 10 years – recent venture capital investments

148

Impacts of distributed generation on Smart Grid.  

E-Print Network (OSTI)

??With the concept of Smart Grid, there are high possibilities that the interconnection of distributed generation issues can be solved and minimised. This thesis discusses… (more)

Hidayatullah, Nur Asyik

2011-01-01T23:59:59.000Z

149

Advanced Voltage Control Strategies for High Penetration of Distributed Generation  

Science Conference Proceedings (OSTI)

This research addresses advanced voltage control strategies for inverter-connected distributed generation. The emphasis is on photovoltaic (PV) generation, and results also apply to distributed wind, fuel cells, micro-turbines, and battery systems that are connected to the grid through an inverter. In related work, the Electric Power Research Institute (EPRI) identified a set of high-priority functions for distributed generation. These included reactive power control such as intelligent and autonomous vo...

2010-12-31T23:59:59.000Z

150

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

D’haeseleer W. Distributed generation: definition, benefitsand their impact on distributed generation power projects,R, Zhou N. Distributed generation with heat recovery and

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

151

The Value of Distributed Generation under Different Tariff Structures  

E-Print Network (OSTI)

Tariff Structure on Distributed Generation Adoption in NewThe Value of Distributed Generation under Different TariffThe Value of Distributed Generation under Different Tariff

Firestone, Ryan; Magnus Maribu, Karl; Marnay, Chris

2006-01-01T23:59:59.000Z

152

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

Gas Abatement with Distributed Generation in California’sGAS ABATEMENT WITH DISTRIBUTED GENERATION IN CALIFORNIA’Sthe role of distributed generation (DG) in greenhouse gas

Stadler, Michael

2010-01-01T23:59:59.000Z

153

Distributed Generation Potential of the U.S. Commercial Sector  

E-Print Network (OSTI)

C. Marnay. 2003. Distributed Generation Capabilities of theImpact on the Deployment of Distributed Generation. PolicyIntegration of Distributed Generation and the Development of

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Gumerman, Etan; Marnay, Chris

2005-01-01T23:59:59.000Z

154

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

Gas Abatement with Distributed Generation in California'sGas Abatement with Distributed Generation in California scommercial buildings, distributed generation, microgrids

Marnay, Chris

2010-01-01T23:59:59.000Z

155

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

N ATIONAL L ABORATORY Distributed Generation Investment by aemployer. ORMMES’06 Distributed Generation Investment by ato invest in a distributed generation (DG) unit that

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

156

Cogeneration and Distributed Generation1 This appendix describes cogeneration and distributed generating resources. Also provided is an  

E-Print Network (OSTI)

Cogeneration and Distributed Generation1 This appendix describes cogeneration and distributed of cogeneration and distributed generation in the Northwest. Cogeneration and distributed generation infrastructure requirements. In contrast, cogeneration and distributed generation are sited with respect to some

157

Ris Energy Report 4 Distributed generation 1 What is distributed generation?  

E-Print Network (OSTI)

Risø Energy Report 4 Distributed generation 1 5 What is distributed generation? Distributed as distributed energy resources (DERs). It appears that there is no consensus on precise defi- nitions of DG. Wind energy is presently the fastest growing and largest contributor to distributed genera- tion from

158

Strategic Intelligence Update: Energy Storage & Distributed Generation, November 2012  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2012-11-28T23:59:59.000Z

159

Strategic Intelligence Update: Energy Storage and Distributed Generation, June 2013  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades.  Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2013-06-28T23:59:59.000Z

160

Strategic Intelligence Update: Energy Storage & Distributed Generation, December 2011  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-12-14T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Strategic Intelligence Update: Energy Storage & Distributed Generation — March 2011  

Science Conference Proceedings (OSTI)

Energy Storage and Distributed Generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-03-22T23:59:59.000Z

162

Strategic Intelligence Update: Energy Storage & Distributed Generation— May 2011  

Science Conference Proceedings (OSTI)

Energy Storage and Distributed Generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-05-26T23:59:59.000Z

163

Strategic Intelligence Update: Energy Storage & Distributed Generation, September 2011  

Science Conference Proceedings (OSTI)

Energy storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-10-03T23:59:59.000Z

164

Strategic Intelligence Update: Energy Storage & Distributed Generation, September 2012  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades.  Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2012-09-27T23:59:59.000Z

165

Strategic Intelligence Update: Energy Storage and Distributed Generation, September 2013  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2013-09-27T23:59:59.000Z

166

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-08-08T23:59:59.000Z

167

Strategic Intelligence Update: Energy Storage and Distributed Generation, November 2013  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage ...

2013-11-25T23:59:59.000Z

168

Solid oxide fuel cell distributed power generation  

SciTech Connect

Fuel cells are electrochemical devices that oxidize fuel without combustion to convert directly the fuel`s chemical energy into electricity. The solid oxide fuel cell (SOFC) is distinguished from other fuel cell types by its all solid state structure and its high operating temperature (1,000 C). The Westinghouse tubular SOFC stack is process air cooled and has integrated thermally and hydraulically within its structure a natural gas reformer that requires no fuel combustion and no externally supplied water. In addition, since the SOFC stack delivers high temperature exhaust gas and can be operated at elevated pressure, it can supplant the combustor in a gas turbine generator set yielding a dry (no steam) combined cycle power system of unprecedented electrical generation efficiency (greater 70% ac/LHV). Most remarkably, analysis indicates that efficiencies of 60 percent can be achieved at power plant capacities as low as 250 kWe, and that the 70 percent efficiency level should be achievable at the two MW capacity level. This paper describes the individual SOFC, the stack, and the power generation system and its suitability for distributed generation.

Veyo, S.E.

1997-12-31T23:59:59.000Z

169

Distributed Storage-Generation Grid  

Science Conference Proceedings (OSTI)

... that, given resource constral nts, surface nuclear ... Lead DDT&E and testing of ground ... propulsion systems across elements; test operations execution ...

2011-08-02T23:59:59.000Z

170

Distributed Renewable Energy Generation Impacts on Microgrid Operation and Reliability  

Science Conference Proceedings (OSTI)

Microgrids incorporating distributed generation, and particularly those incorporating renewable energy technologies, have the potential to improve electric power system efficiency and reliability while providing novel benefits to their owners, operators, and the system as a whole. This report focuses on the impact of renewable energy technologies on microgrids and on the larger question of the impact of distributed generation and microgrids on the electric power system.

2002-02-06T23:59:59.000Z

171

Optimization of distributed generation penetration based on particle filtering  

Science Conference Proceedings (OSTI)

Distributed generation is small scale power cogeneration within an integrated energy network, that provides system wide and environmental benefits. Network benefits include enhancements to reliability, reduction of peak power requirements, improved power ...

Nurcin Celik; Juan Pablo Sáenz; Xiaoran Shi

2012-12-01T23:59:59.000Z

172

Distributed Generation Case Study: Industrial Process Heating (Cogeneration)  

Science Conference Proceedings (OSTI)

This report details candidate distributed generation (DIS-GEN) options and the process used to select a cogeneration system for potential development at an industrial site. The local utility commissioned this evaluation to explore energy partnership opportunities with its customer.

1997-12-31T23:59:59.000Z

173

Modeling distributed generation in the buildings sectors  

Gasoline and Diesel Fuel Update (EIA)

Modeling distributed generation Modeling distributed generation in the buildings sectors August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Modeling distributed generation in the buildings sectors i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. July 2013 U.S. Energy Information Administration | Modeling distributed generation in the buildings sectors 1

174

Distributed Generation Standard Contracts | Department of Energy  

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

Rhode Island enacted legislation (H.B. 6104) in June 2011 establishing a feed-in tariff for new distributed renewable energy generators up to three megawatts (MW) in...

175

Regulatory Considerations for Developing Distributed Generation Projects  

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

Regulatory Considerations for Developing Distributed Generation Regulatory Considerations for Developing Distributed Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar is to educate NRECA and APPA members, Tribes, and federal energy managers about a few of the regulatory issues that should be considered in developing business plans for distributed generation projects. This webinar is sponsored by the DOE Office of Indian Energy Policy and Programs, DOE Energy Efficiency and Renewable Energy Tribal Energy Program, Western Area Power Administration, DOE Federal Energy Management Program, DOE Office of Electricity Delivery and Energy Reliability, National Rural Electric Cooperative Association, and the American Public Power

176

Modern generator protection systems  

SciTech Connect

The special problems of the protection of generating stations with large machines connected to large integrated networks are presented. The coordination between the protective relays and tripping functions and the reliability of the protection scheme are important considerations in modern plants. Primary and backup protective functions, the applications, and their divisions into fault detection and ''fault prevention'' categories are considered. Testing and maintenance of the generator protection system including automatic calibration testing equipment is also discussed. The concept of the generator protection as a completely coordinated system and its realization with solid state protective relays is also presented. 9 refs.

Pencinger, C.J.

1981-01-01T23:59:59.000Z

177

Net Metering Policy Development and Distributed Solar Generation in Minnesota: Overview of Trends in Nationwide Policy Development and Implications of Increasing the Eligible System Size Cap  

DOE Green Energy (OSTI)

The goal of the Minnesota net metering policy is to give the maximum possible encouragement to distributed generation assets, especially solar electric systems (MN 2008). However, according to a published set of best practices (NNEC 2008) that prioritize the maximum development of solar markets within states, the Minnesota policy does not incorporate many of the important best practices that may help other states transform their solar energy markets and increase the amount of grid-connected distributed solar generation assets. Reasons cited include the low system size limit of 40kW (the best practices document recommends a 2 MW limit) and a lack of language protecting generators from additional utility fees. This study was conducted to compare Minnesota's policies to national best practices. It provides an overview of the current Minnesota policy in the context of these best practices and other jurisdictions' net metering policies, as well as a qualitative assessment of the impacts of raising the system size cap within the policy based on the experiences of other states.

Doris, E.; Busche, S.; Hockett, S.

2009-12-01T23:59:59.000Z

178

Steam generator support system  

SciTech Connect

A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances.

Moldenhauer, James E. (Simi Valley, CA)

1987-01-01T23:59:59.000Z

179

Steam generator support system  

DOE Patents (OSTI)

A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source is disclosed. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances. 4 figs.

Moldenhauer, J.E.

1987-08-25T23:59:59.000Z

180

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Existing distributed generation sources are more difficultfrom all electricity generation sources using a standarda co-located distributed generation source. It reads in text

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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.


181

ARPA-E Announces $30 Million for Distributed Generation Technologies |  

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

30 Million for Distributed Generation 30 Million for Distributed Generation Technologies ARPA-E Announces $30 Million for Distributed Generation Technologies November 25, 2013 - 1:00pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Today, the Department of Energy announced up to $30 million in Advanced Research Projects Agency - Energy (ARPA-E) funding for a new program focused on the development of transformational electrochemical technologies to enable low-cost distributed power generation. ARPA-E's Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase energy security, and balance intermittent renewable technologies while reducing CO2 emissions associated with current

182

Cooling water distribution system  

DOE Patents (OSTI)

A passive containment cooling system for a nuclear reactor containment vessel. Disclosed is a cooling water distribution system for introducing cooling water by gravity uniformly over the outer surface of a steel containment vessel using an interconnected series of radial guide elements, a plurality of circumferential collector elements and collector boxes to collect and feed the cooling water into distribution channels extending along the curved surface of the steel containment vessel. The cooling water is uniformly distributed over the curved surface by a plurality of weirs in the distribution channels.

Orr, Richard (Pittsburgh, PA)

1994-01-01T23:59:59.000Z

183

A multistage model for distribution expansion planning with distributed generation in a deregulated electricity market  

Science Conference Proceedings (OSTI)

Distribution systems management is becoming an increasingly complicated issue due to the introduction of new technologies, new energy trading strategies and a new deregulated environment. In the new deregulated energy market and considering the incentives ... Keywords: GAMS-MATLAB interface, distributed generation (DG), distribution company (DISCO), investment payback time, microturbine, social welfare

S. Porkar; A. Abbaspour-Tehrani-Fard; P. Poure; S. Saadate

2010-06-01T23:59:59.000Z

184

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design de...

Sulc, Petr; Backhaus, Scott; Chertkov, Michael

2010-01-01T23:59:59.000Z

185

Properly Understanding the Impacts of Distributed Resources on Distribution Systems  

Science Conference Proceedings (OSTI)

The subject paper discusses important impacts of distributed resources on distribution networks and feeders. These include capacity, line losses, voltage regulation, and central system support (such as volt/var via central generators and substation) as the number, placement and penetration levels of distributed resources are varied. Typically, the impacts of distributed resources on the distribution system are studied by using steady-state rather than dynamic analysis tools. However, the response time and transient impacts of both system equipment (such as substation/feeder capacitors) and distributed resources needs to be taken into account and only dynamic analysis will provide the full impact results. ORNL is wrapping up a study of distributed resources interconnected to a large distribution system considering the above variables. A report of the study and its results will be condensed into a paper for this panel session. The impact of distributed resources will vary as the penetration level reaches the capacity of the distribution feeder/system. The question is how high of a penetration of distributed resource can be accommodated on the distribution feeder/system without any major changes to system operation, design and protection. The impacts most surely will vary depending upon load composition, distribution and level. Also, it is expected that various placement of distributed resources will impact the distribution system differently.

Rizy, D Tom [ORNL; Li, Fangxing [ORNL; Li, Huijuan [University of Tennessee, Knoxville (UTK); Adhikari, Sarina [ORNL; Kueck, John D [ORNL

2010-01-01T23:59:59.000Z

186

Study on Simulation of Distribution Generation on PSCAD/EMTDC  

Science Conference Proceedings (OSTI)

With the application of renewable energy, Distribution Generation (DG) will play a more important role in power systems in the near future. This paper describes the methods of modeling and simulation about photovoltaic cell, fuel cell and small aero ... Keywords: DG, photovoltaic cell, fuel cell, small aero generator, PSCAD/EMTDC

Ke-Ping Zhu; Dao-Zhuo Jiang; Yang Zhou

2012-07-01T23:59:59.000Z

187

Electricity Distribution System Workshop  

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

Grid Tech Team Grid Tech Team Discussion Summary Electricity Distribution System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Common Themes ...................................................................................................................................... 5 Discussion Topic Tables ............................................................................................................................. 8

188

FCT Technology Validation: Stationary/Distributed Generation Projects  

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

Stationary/Distributed Stationary/Distributed Generation Projects to someone by E-mail Share FCT Technology Validation: Stationary/Distributed Generation Projects on Facebook Tweet about FCT Technology Validation: Stationary/Distributed Generation Projects on Twitter Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Google Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Delicious Rank FCT Technology Validation: Stationary/Distributed Generation Projects on Digg Find More places to share FCT Technology Validation: Stationary/Distributed Generation Projects on AddThis.com... Home Transportation Projects Stationary/Distributed Generation Projects DOE Projects Non-DOE Projects Integrated Projects Quick Links Hydrogen Production

189

LO Generation and Distribution for 60GHz Phased Array Transceivers  

E-Print Network (OSTI)

LO Generation and Distribution for 60GHz Phased ArrayFall 2011 LO Generation and Distribution for 60GHz PhasedAbstract LO Generation and Distribution for 60GHz Phased

Marcu, Cristian

2011-01-01T23:59:59.000Z

190

Distribution System Losses Evaluation  

Science Conference Proceedings (OSTI)

Currently, there is not an industry standard on how utilities calculate and account for electrical losses and reductions in electric system losses. Computer models used to analyze power flows typically only include the primary components of the distribution system infrastructure. More detailed electric system models can benefit utilities by providing more accurate loss calculations as well as benefits for system planning and engineering. The utility industry could benefit from having a consistent and uni...

2008-12-16T23:59:59.000Z

191

Identifying distributed generation and demand side management investment opportunities  

SciTech Connect

Electric utilities have historically satisfied customer demand by generating electricity centrally and distributing it through an extensive transmission and distribution network. The author examines targeted demand side management programs as an alternative to system capacity investments once capacity is exceeded. The paper presents an evaluation method to determine how much a utility can afford to pay for distributed resources. 17 refs., 2 figs, 1 tab.

Hoff, T.E. [Stanford Univ., CA (United States)

1996-12-31T23:59:59.000Z

192

Small-Signal Analysis of Hybrid Distributed Generation System with HVDC-Link and Energy Storage Elements  

Science Conference Proceedings (OSTI)

A small-signal analysis of isolated autonomous hybrid system with high voltage direct current link (HVDC) or high voltage alternating current (HVAC) line for different energy storage combinations is proposed in this paper. The hybrid systems supplying ...

P. K. Ray; S. R. Mohanty; Nand Kishor; A. Mohanty

2009-12-01T23:59:59.000Z

193

Worst Case Scenario for Large Distribution Networks with Distributed Generation  

E-Print Network (OSTI)

and distribution networks, finally to the electric energy consumers. The life style of a nation is measured) in distri- bution network has significant effects on voltage profile for both customers and distribution of this formula is checked by comparing with the existing power systems simulation software. Using the voltage

Pota, Himanshu Roy

194

Protecting the Modern Distribution Grid: EPRI Survey on Distribution Protection with Emphasis on Distributed Generation Integration Practices  

Science Conference Proceedings (OSTI)

The increasing penetration of distributed generation (DG) has created the need for changing protection practices for electric utility distribution systems. An assessment of current practice and experiences is provided. This report is to make utility engineers aware of potential issues and present protection practices for systems with DG.BackgroundDistributed resources have had significant impacts on electric utility power delivery systems. Greater impacts are ...

2013-12-19T23:59:59.000Z

195

Distributed Generation Study/SUNY Buffalo | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study/SUNY Buffalo Distributed Generation Study/SUNY Buffalo < Distributed Generation Study Jump to: navigation, search Study Location Buffalo, New York Site Description Institutional-School/University Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 600000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2002/12/11 Monitoring Termination Date 2004/08/11

196

Local control of reactive power by distributed photovoltaic generators  

SciTech Connect

High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the real power generated by the PVs. Using one adjustable parameter per circuit, we balance the requirements on power quality and desire to minimize thermal losses. Numerical analysis of two exemplary systems, with comparable total PV generation albeit a different spatial distribution, show how to adjust the optimization parameter depending on the goal. Overall, this local scheme shows excellent performance; it's capable of guaranteeing acceptable power quality and achieving significant saving in thermal losses in various situations even when the renewable generation in excess of the circuit own load, i.e. feeding power back to the higher-level system.

Chertkov, Michael [Los Alamos National Laboratory; Turitsyn, Konstantin [Los Alamos National Laboratory; Sulc, Petr [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

197

The Potential Benefits of Distributed Generation and the Rate...  

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

The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related...

198

Property:Distributed Generation Function | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Function Jump to: navigation, search Property Name Distributed Generation Function Property Type Page Description A description of the function(s) for which...

199

GA based energy loss minimization approach for optimal sizing & placement of distributed generation  

Science Conference Proceedings (OSTI)

Distributed Generators (DG) provide the lowest cost solution to handle low voltage or overload problems. In conjunction with such problems, a technique of energy saving is introduced by placement of distributed generation (DG) in distribution systems. ... Keywords: Distributed generation (DG), energy saving, genetic algorithms (GA), optimal sizing and placement

Deependra Singh; Devender Singh; K. S. Verma

2008-04-01T23:59:59.000Z

200

Study on the operation of a low-voltage AC microgrid with multiple distributed generations  

Science Conference Proceedings (OSTI)

This paper aims to study the operation of a grid-connected low-voltage AC microgrid with multiple distributed generations (DGs). First of all, a 400 V low-voltage AC microgrid integrated with a 30 kW microturbine generator, a 13 kW photovoltaic generation ... Keywords: distributed generators, distribution systems, microgrids, steady-state analysis, three-phase power flow

Wei-Tzer Huang

2010-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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.


201

Control and Protection of Power Electronics Interfaced Distri-buted Generation Systems in a Customer-Driven Microgrid  

E-Print Network (OSTI)

in a Customer-Driven Microgrid Fang Z. Peng, Yun Wei Li and Leon M. Tolbert Abstract ­ This paper discusses-driven microgrid (CDM). Particularly, the following topics will be addressed: microgrid system configurations); renewable energy source (RES); micro-source; microgrid; customer-driven micro- grid (CDM), power electronics

Tolbert, Leon M.

202

Panel on Microgrids Systems International Conference on System of Systems Engineering, April 16-18, 2007 San Antonio Abstract--Application of individual distributed generators can  

E-Print Network (OSTI)

, isolating the microgrid's load from the disturbance (and thereby maintaining high level of service) withoutArnold Schwarzenegger Governor CERTS MICROGRID LABORATORY TEST BED Test Plan Section 6.0 Microgrid Test Bed System Checkout (Static Switch) Prepared For: California Energy Commission Public Interest

203

Distributed Optimization System  

DOE Patents (OSTI)

A search system and method for controlling multiple agents to optimize an objective using distributed sensing and cooperative control. The search agent can be one or more physical agents, such as a robot, and can be software agents for searching cyberspace. The objective can be: chemical sources, temperature sources, radiation sources, light sources, evaders, trespassers, explosive sources, time dependent sources, time independent sources, function surfaces, maximization points, minimization points, and optimal control of a system such as a communication system, an economy, a crane, and a multi-processor computer.

Hurtado, John E. (Albuquerque, NM); Dohrmann, Clark R. (Albuquerque, NM); Robinett, III, Rush D. (Tijeras, NM)

2004-11-30T23:59:59.000Z

204

Generating electron cyclotron resonance plasma using distributed scheme  

Science Conference Proceedings (OSTI)

This study employs a distributed microwave input system and permanent magnets to generate large-area electron cyclotron resonance (ECR) plasma. ECR plasmas were generated with nitrogen gas, and the plasma density was measured by Langmuir probe. A uniform ECR plasma with the electron density fluctuation of {+-}9.8% over 500 mm Multiplication-Sign 500 mm was reported. The proposed idea of generating uniform ECR plasma can be scaled to a much larger area by using n Multiplication-Sign n microwave input array system together with well-designed permanent magnets.

Huang, C. C. [Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan (China); Chung-Shan Institute of Science and Technology, Lung-Tan, Taoyuan, Taiwan (China); Chang, T. H.; Chen, N. C.; Chao, H. W. [Department of Physics, National Tsing Hua University, Hsinchu, Taiwan (China); Chen, C. C. [Chung-Shan Institute of Science and Technology, Lung-Tan, Taoyuan, Taiwan (China); Chou, S. F. [Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan (China)

2012-08-06T23:59:59.000Z

205

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design decision that weighs on the speed and quality of communication required is whether the control should be centralized or distributed (i.e. local). In general, we find that local control schemes are capable for maintaining voltage within acceptable bounds. We consider the benefits of choosing different local variables on which to control and how the control system can be continuously tuned between robust voltage control, suitable for daytime operation when circuit conditions can change rapidly, and loss minimization better suited for nighttime operation.

Petr Sulc; Konstantin Turitsyn; Scott Backhaus; Michael Chertkov

2010-08-04T23:59:59.000Z

206

Two-stage approach for the assessment of distributed generation capacity mixture in active distribution networks  

Science Conference Proceedings (OSTI)

Distribution networks are limited with spare capacities to integrate increased volumes of distributed generation (DG). Network constraints and congestion

D. Jayaweera; S. Islam; S. Neduvelil

2013-01-01T23:59:59.000Z

207

Advanced Distributed Generation LLC | Open Energy Information  

Open Energy Info (EERE)

LLC LLC Jump to: navigation, search Name Advanced Distributed Generation LLC Address 200 West Scott Park Drive, MS # 410 Place Toledo, Ohio Zip 43607 Sector Solar Product Agriculture; Consulting; Installation; Maintenance and repair; Retail product sales and distribution Phone number 419-725-3401 Website http://www.advanced-dg.com Coordinates 41.6472294°, -83.5975882° 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":41.6472294,"lon":-83.5975882,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

208

Atom-photon entanglement generation and distribution  

E-Print Network (OSTI)

We extend an earlier model by Law {\\it et al.} \\cite{law} for a cavity QED based single-photon-gun to atom-photon entanglement generation and distribution. We illuminate the importance of a small critical atom number on the fidelity of the proposed operation in the strong coupling limit. Our result points to a promisingly high purity and efficiency using currently available cavity QED parameters, and sheds new light on constructing quantum computing and communication devices with trapped atoms and high Q optical cavities.

B. Sun; M. S. Chapman; L. You

2003-08-31T23:59:59.000Z

209

Distributed Generation: Challenges and Opportunities, 7. edition  

Science Conference Proceedings (OSTI)

The report is a comprehensive study of the Distributed Generation (DG) industry. The report takes a wide-ranging look at the current and future state of DG and both individually and collectively addresses the technologies of Microturbines, Reciprocating Engines, Stirling Engines, Fuel Cells, Photovoltaics, Concentrating Solar, Wind, and Microgrids. Topics covered include: the key technologies being used or planned for DG; the uses of DG from utility, energy service provider, and customer viewpoints; the economics of DG; the benefits of DG from multiple perspectives; the barriers that exist to implementing DG; the government programs supporting the DG industry; and, an analysis of DG interconnection and net metering rules.

NONE

2007-10-15T23:59:59.000Z

210

Distributed Generation with Heat Recovery and Storage  

DOE Green Energy (OSTI)

Electricity generated by distributed energy resources (DER) located close to end-use loads has the potential to meet consumer requirements more efficiently than the existing centralized grid. Installation of DER allows consumers to circumvent the costs associated with transmission congestion and other non-energy costs of electricity delivery and potentially to take advantage of market opportunities to purchase energy when attractive. On-site thermal power generation is typically less efficient than central station generation, but by avoiding non-fuel costs of grid power and utilizing combined heat and power (CHP) applications, i.e., recovering heat from small-scale on-site generation to displace fuel purchases, then DER can become attractive to a strictly cost-minimizing consumer. In previous efforts, the decisions facing typical commercial consumers have been addressed using a mixed-integer linear programme, the DER Customer Adoption Model(DER-CAM). Given the site s energy loads, utility tariff structure, and information (both technical and financial) on candidate DER technologies, DER-CAM minimizes the overall energy cost for a test year by selecting the units to install and determining their hourly operating schedules. In this paper, the capabilities of DER-CAM are enhanced by the inclusion of the option to store recovered low-grade heat. By being able to keep an inventory of heat for use in subsequent periods, sites are able to lower costs even further by reducing off-peak generation and relying on storage. This and other effects of storages are demonstrated by analysis of five typical commercial buildings in San Francisco, California, and an estimate of the cost per unit capacity of heat storage is calculated.

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-07-29T23:59:59.000Z

211

Distributed Generation Study/Sea Rise 2 | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen CI60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Grenadier Realty System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1300000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/08/30 Monitoring Termination Date 1969/12/31

212

Distributed Generation Study/Sea Rise 1 | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen CI60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Grenadier Realty System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1300000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/08/30 Monitoring Termination Date 1969/12/31

213

Distributed Generation Study/Harbec Plastics | Open Energy Information  

Open Energy Info (EERE)

< Distributed Generation Study < Distributed Generation Study Jump to: navigation, search Study Location Ontario, New York Site Description Industrial-Plastics Processing Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C30 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Northern Development System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 25 Stand-alone Capability None Power Rating 750 kW0.75 MW 750,000 W 750,000,000 mW 7.5e-4 GW 7.5e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 3750000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/10/06 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

214

Efficient hardware generation of random variates with arbitrary distributions  

E-Print Network (OSTI)

This paper presents a technique for efficiently generating random numbers from a given probability distribution. This is achieved by using a generic hardware architecture, which transforms uniform random numbers according to a distribution mapping stored in RAM, and a software approximation generator that creates distribution mappings for any given target distribution. This technique has many features not found in current non-uniform random number generators, such as the ability to adjust the target distribution while the generator is running, per-cycle switching between distributions, and the ability to generate distributions with discontinuities in the Probability Density Function. 1.

David B. Thomas; Wayne Luk

2006-01-01T23:59:59.000Z

215

Quality monitored distributed voting system  

DOE Patents (OSTI)

A quality monitoring system can detect certain system faults and fraud attempts in a distributed voting system. The system uses decoy voters to cast predetermined check ballots. Absent check ballots can indicate system faults. Altered check ballots can indicate attempts at counterfeiting votes. The system can also cast check ballots at predetermined times to provide another check on the distributed voting system. 6 figs.

Skogmo, D.

1997-03-18T23:59:59.000Z

216

ANALYSIS OF DISTRIBUTION FEEDER LOSSES DUE TO ADDITION OF DISTRIBUTED PHOTOVOLTAIC GENERATORS  

SciTech Connect

Distributed generators (DG) are small scale power supplying sources owned by customers or utilities and scattered throughout the power system distribution network. Distributed generation can be both renewable and non-renewable. Addition of distributed generation is primarily to increase feeder capacity and to provide peak load reduction. However, this addition comes with several impacts on the distribution feeder. Several studies have shown that addition of DG leads to reduction of feeder loss. However, most of these studies have considered lumped load and distributed load models to analyze the effects on system losses, where the dynamic variation of load due to seasonal changes is ignored. It is very important for utilities to minimize the losses under all scenarios to decrease revenue losses, promote efficient asset utilization, and therefore, increase feeder capacity. This paper will investigate an IEEE 13-node feeder populated with photovoltaic generators on detailed residential houses with water heater, Heating Ventilation and Air conditioning (HVAC) units, lights, and other plug and convenience loads. An analysis of losses for different power system components, such as transformers, underground and overhead lines, and triplex lines, will be performed. The analysis will utilize different seasons and different solar penetration levels (15%, 30%).

Tuffner, Francis K.; Singh, Ruchi

2011-08-09T23:59:59.000Z

217

Ductless Hydronic Distribution Systems  

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

8, 2011 8, 2011 Ductless Hydronic Distribution Systems Welcome to the Webinar! We will start at 1:00 PM Eastern Time Be sure that you are also dialed into the telephone conference call: Dial-in number: 800-779-8694; Pass code: 2506667 Download the presentation at: www.buildingamerica.gov/meetings.html Building Technologies Program eere.energy.gov * Reduce energy use in new and existing residential buildings * Promote building science and systems engineering / integration approach * "Do no harm": Ensure safety, health and durability are maintained or improved * Accelerate adoption of high performance technologies www.buildingamerica.gov Introduction to Building America Building Technologies Program eere.energy.gov Building America Industry Consortia

218

Smartgrids and distributed generation: the future electricity networks of the European union  

Science Conference Proceedings (OSTI)

A new concept for the European electrical system is emerging where a portion of the electricity generated by large conventional plants will be displaced by a great number of small generators disseminated throughout the territory. In this scenario, each ... Keywords: distributed generation, electrical distribution systems, energy and environment

Francesco Muzi

2008-02-01T23:59:59.000Z

219

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

of customer adoption of distributed energy resources, LBNLR. M. (2005). Distributed energy resources customer adoptionT. (2003). Gas-fired distributed energy resource technology

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

220

Distributed Generation Technologies DGT | Open Energy Information  

Open Energy Info (EERE)

DGT DGT Jump to: navigation, search Name Distributed Generation Technologies (DGT) Place Ithaca, New York Zip 14850 Product Commercializing a technology to convert organic waste into pure and compressed methane gas via anaerobic digestion. Coordinates 39.93746°, -84.553194° 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":39.93746,"lon":-84.553194,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "distributed generation system" 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

Optimal Siting and Sizing of Solar Photovoltaic Distributed Generation to Minimize Loss, Present Value of Future Asset Upgrades and Peak Demand Costs on a Real Distribution Feeder.  

E-Print Network (OSTI)

??The increasing penetration of distributed generation (DG) in power distribution systems presents technical and economic benefits as well as integration challenges to utility engineers. Governments… (more)

Mukerji, Meghana

2011-01-01T23:59:59.000Z

222

Introduction to Distributed Generation and the CERTS Microgrid  

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

Introduction to Distributed Generation and the CERTS Microgrid Introduction to Distributed Generation and the CERTS Microgrid Speaker(s): Chris Marnay Date: December 3, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare This is a first in a series of at least 5 seminars around the winter break to survey Distributed Energy Resources (DER) research questions and various Berkeley capabilities available to address them. The electricity industry in industrialized countries may be about to reverse a century long trend towards ever larger scale, ever more centrally controlled power systems. The emergence of technologies that are competitive at small scales, close to loads, in large part because of the opportunities created to capture waste heat and locally control power quality might signal a radical

223

Distributed Generation with Heat Recovery and Storage  

SciTech Connect

Electricity produced by distributed energy resources (DER)located close to end-use loads has the potential to meet consumerrequirements more efficiently than the existing centralized grid.Installation of DER allows consumers to circumvent the costs associatedwith transmission congestion and other non-energy costs of electricitydelivery and potentially to take advantage of market opportunities topurchase energy when attractive. On-site, single-cycle thermal powergeneration is typically less efficient than central station generation,but by avoiding non-fuel costs of grid power and by utilizing combinedheat and power (CHP) applications, i.e., recovering heat from small-scaleon-site thermal generation to displace fuel purchases, DER can becomeattractive to a strictly cost-minimizing consumer. In previous efforts,the decisions facing typical commercial consumers have been addressedusing a mixed-integer linear program, the DER Customer Adoption Model(DER-CAM). Given the site s energy loads, utility tariff structure, andinformation (both technical and financial) on candidate DER technologies,DER-CAM minimizes the overall energy cost for a test year by selectingthe units to install and determining their hourly operating schedules. Inthis paper, the capabilities of DER-CAM are enhanced by the inclusion ofthe option to store recovered low-grade heat. By being able to keep aninventory of heat for use in subsequent periods, sites are able to lowercosts even further by reducing lucrative peak-shaving generation whilerelying on storage to meet heat loads. This and other effects of storageare demonstrated by analysis of five typical commercial buildings in SanFrancisco, California, USA, and an estimate of the cost per unit capacityof heat storage is calculated.

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2006-06-16T23:59:59.000Z

224

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

LBNL-60592 Distributed Generation Investment by a Microgrid Under Uncertainty Afzal Siddiqui'06 1 Distributed Generation Investment by a Microgrid Under Uncertainty Afzal Siddiqui University a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates

225

Decentralized control techniques applied to electric power distributed generation in microgrids.  

E-Print Network (OSTI)

??Distributed generation of electric energy has become part of the current electric power system. In this context a new scenario is arising in which small… (more)

Vásquez Quintero, Juan Carlos

2009-01-01T23:59:59.000Z

226

MHD Generating system  

DOE Patents (OSTI)

According to the present invention, coal combustion gas is the primary working fluid and copper or a copper alloy is the electrodynamic fluid in the MHD generator, thereby eliminating the heat exchangers between the combustor and the liquid-metal MHD working fluids, allowing the use of a conventional coalfired steam bottoming plant, and making the plant simpler, more efficient and cheaper. In operation, the gas and liquid are combined in a mixer and the resulting two-phase mixture enters the MHD generator. The MHD generator acts as a turbine and electric generator in one unit wherein the gas expands, drives the liquid across the magnetic field and thus generates electrical power. The gas and liquid are separated, and the available energy in the gas is recovered before the gas is exhausted to the atmosphere. Where the combustion gas contains sulfur, oxygen is bubbled through a side loop to remove sulfur therefrom as a concentrated stream of sulfur dioxide. The combustor is operated substoichiometrically to control the oxide level in the copper.

Petrick, Michael (Joliet, IL); Pierson, Edward S. (Chicago, IL); Schreiner, Felix (Mokena, IL)

1980-01-01T23:59:59.000Z

227

Optimal Solar PV Arrays Integration for Distributed Generation  

SciTech Connect

Solar photovoltaic (PV) systems hold great potential for distributed energy generation by installing PV panels on rooftops of residential and commercial buildings. Yet challenges arise along with the variability and non-dispatchability of the PV systems that affect the stability of the grid and the economics of the PV system. This paper investigates the integration of PV arrays for distributed generation applications by identifying a combination of buildings that will maximize solar energy output and minimize system variability. Particularly, we propose mean-variance optimization models to choose suitable rooftops for PV integration based on Markowitz mean-variance portfolio selection model. We further introduce quantity and cardinality constraints to result in a mixed integer quadratic programming problem. Case studies based on real data are presented. An efficient frontier is obtained for sample data that allows decision makers to choose a desired solar energy generation level with a comfortable variability tolerance level. Sensitivity analysis is conducted to show the tradeoffs between solar PV energy generation potential and variability.

Omitaomu, Olufemi A [ORNL; Li, Xueping [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

228

A Bio-Based Fuel Cell for Distributed Energy Generation  

DOE Green Energy (OSTI)

The technology we propose consists primarily of an improved design for increasing the energy density of a certain class of bio-fuel cell (BFC). The BFCs we consider are those which harvest electrons produced by microorganisms during their metabolism of organic substrates (e.g. glucose, acetate). We estimate that our technology will significantly enhance power production (per unit volume) of these BFCs, to the point where they could be employed as stand-alone systems for distributed energy generation.

Anthony Terrinoni; Sean Gifford

2008-06-30T23:59:59.000Z

229

Regulatory Considerations for Developing Distributed Generation...  

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

solution 2 What size generator? What fuel or energy source? Does it include storage? Who pays the up-front cost of the generator? Who owns the generator? Who...

230

Small Gas Turbines for Distributed Generation Markets: Technology, Products, and Business Issues  

Science Conference Proceedings (OSTI)

Small gas turbines (300 kW to 5 MW) offer an attractive way for utilities and energy service companies to generate electric power within distribution grids and for consumers to generate their own power. Distributed generation also benefits utilities by deferring or avoiding costly expansion of the power transmission and distribution system, which could allow them to offer customers lower cost power. Gas turbines process more power-generation cycle air per unit size and weight of machine than do reciproca...

2000-12-06T23:59:59.000Z

231

Installation, Operation, and Maintenance Costs for Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

Distributed generation (DG) is a broad term that encompasses both mature and emerging onsite power generation technologies with power output as small as 1 kW and as large as 20 MW. While the equipment or purchase cost of a DG system is very important, installation, operation, and maintenance (IOM) costs also are significant and often overlooked. This report reviews IOM costs for both mature and emerging DG technologies. Some equipment cost data is included for reference, but is not the focus of this repo...

2003-02-03T23:59:59.000Z

232

Operation of Distributed Generation Under Stochastic Prices  

E-Print Network (OSTI)

Generation Under Stochastic Prices Afzal S. Siddiqui andGENERATION UNDER STOCHASTIC PRICES AFZAL SIDDIQUI AND CHRIStransactions at stochastic prices. A stochastic dynamic

Siddiqui, Afzal S.; Marnay, Chris

2005-01-01T23:59:59.000Z

233

Methodology The electricity generation and distribution network in the Western United States is  

E-Print Network (OSTI)

Methodology The electricity generation and distribution network in the Western United States is comprised of power plants, electric utilities, electrical transformers, transmission and distribution infrastructure, etc. We conceptualize the system as a transportation network with resources (electricity

Hall, Sharon J.

234

Parallel and distributed trajectory generation of redundant manipulators through cooperation and competition among subsystems  

Science Conference Proceedings (OSTI)

Autonomous distributed control (ADC) is one of the most attractive approaches for more versatile and autonomous robot systems. The paper proposes a parallel and distributed trajectory generation method for redundant manipulators through cooperative and ...

T. Tsuji; S. Nakayama; K. Ito

1997-06-01T23:59:59.000Z

235

Next generation CAT system  

E-Print Network (OSTI)

Two novel techniques for future CAT system are presented. Transmission descattering is a singleshot method to differentiate unscattered and scattered components of light transmission through a scattering material. ...

Kim, Jaewon, S.M. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

236

Gossiping in distributed systems  

E-Print Network (OSTI)

Exchange of information between various nodes in a distributed network can be useful to utilize the available resources effectively. Gossiping algorithms can be used for this purpose. We begin with a survey of various gossiping schemes for different types of network topologies. Two types of gossiping techniques have traditionally been studied and used: (i) schemes in which there is an initiator to start the algorithm and (ii) sch emes without an initiator. These are again sub-divided into two classes: (i) each node knowing the entire graph of the network and (ii) each node knowing only its neighbors. In the schemes with an initiator, the leader initiates the algorithm and subsequently other nodes in the system participate in the algorithm when they are told to do so by a node which already participates in the algorithm. Assuming that each node knows only its neighbors, we propose and implement a gossiping scheme which can compromise message complexity with the time taken to reach consensus. This scheme assumes that one of the nodes is the initiator. We also propose a method for gossiping in an arbitrary graph without an initiator where nodes communicate asynchronously using timeouts.

Penubothu, Muralidhar V

1994-01-01T23:59:59.000Z

237

Strategic Intelligence Update: Energy Storage & Distributed Generation, May-June 2010  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-05-28T23:59:59.000Z

238

Distributed Electrical Power Generation: Summary of Alternative Available Technologies  

E-Print Network (OSTI)

Approved for public release; distribution is unlimited. Prepared for U.S. Army Corps of Engineers Washington, DC 20314-1000ABSTRACT: The Federal government is the greatest consumer of electricity in the nation. Federal procurement and installation of higher efficiency energy sources promises many benefits, in terms of economy, employment, export, and environment. While distributed generation (DG) technologies offer many of the benefits of alternative, efficient energy sources, few DG systems can currently be commercially purchased “off the shelf, ” and complicated codes and standards deter potential users. Federal use of distributed generation demonstrates the technology, can help drive down costs, and an help lead the general public to accept a changing energy scheme. This work reviews and describes various distributed generation technologies, including fuel cells, microturbines, wind turbines, photovoltaic arrays, and Stirling engines. Issues such as fuel availability, construction considerations, protection controls are addressed. Sources of further information are provided. DISCLAIMER: The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents.

Sarah J. Scott; Franklin H. Holcomb; Nicholas M. Josefik; Sarah J. Scott; Franklin H. Holcomb; Nicholas M. Josefik

2003-01-01T23:59:59.000Z

239

Engineering Guide for Integration of Distributed Storage and Generation  

Science Conference Proceedings (OSTI)

This engineering guide for distributed storage and generation (DSG) is an update of a previous guide published by EPRI in 2004. It is intended for utility engineers facing integration of distributed generation and storage. The new guide considers higher penetration levels of DSG, particularly with the expansion of distribution connected photovoltaic power and the continued interest in distributed storage for grid support. Also, a distribution planning chapter for DSG has been added. Additional ...

2012-12-31T23:59:59.000Z

240

Impact of Distributed Generation and Series Compensation on Distribution Network  

E-Print Network (OSTI)

are investigated. A doubly-fed induction generator (DFIG)-based DG unit and a series capacitor (SC) and a thyristor DFIG units. The converter of the DFIG is modeled as an unbalanced harmonic-generating source

Pota, Himanshu Roy

Note: This page contains sample records for the topic "distributed generation system" 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

System Demonstration Multilingual Weather Forecast Generation System  

E-Print Network (OSTI)

System Demonstration Multilingual Weather Forecast Generation System Tianfang Yao DongmoZhang Qian (Multilingual Weather Forecasts Assistant) system will be demonstrated. It is developed to generate the multilingual text of the weather forecasts automatically. The raw data from the weather observation can be used

242

April 2013 Most Viewed Documents for Power Generation And Distribution |  

Office of Scientific and Technical Information (OSTI)

April 2013 Most Viewed Documents for Power Generation And Distribution April 2013 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 719 Seventh Edition Fuel Cell Handbook NETL (2004) 628 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 343 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 290 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P. (1997) 248 Controlled low strength materials (CLSM), reported by ACI Committee 229 Rajendran, N. (1997) 106 Micro-CHP Systems for Residential Applications Timothy DeValve; Benoit Olsommer (2007)

243

Most Viewed Documents - Power Generation and Distribution | OSTI, US Dept  

Office of Scientific and Technical Information (OSTI)

Most Viewed Documents - Power Generation and Distribution Most Viewed Documents - Power Generation and Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; et al. (1994) ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Quarterly technical progress report, September 1993--December 1993 Benemann, J.R.; Oswald, W.J. (1994) Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; et al. (1997) Multilevel converters -- A new breed of power converters Lai, J.S. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.]; Peng, F.Z. [Univ. of Tennessee, Knoxville, TN (United

244

Impact of Air Quality Regulations on Distributed Generation  

Science Conference Proceedings (OSTI)

Relatively small projects for generating electrical power at or near the point of use--distributed generation (DG)--offer unique opportunities for enhancing the U.S. electric system. This report finds that current air quality regulatory practices are inappropriately inhibiting the development of DG through a failure to recognize the environmental benefits offered by DG or by imposing requirements designed for larger systems that are not appropriate to DG systems. The report recommends that air quality regulation be made more efficient and appropriate for DG by establishing national standards for DG equipment. This report also recommends that DG projects be evaluated on a''net'' emissions basis by being given credit for any emission sources that they displace. Air quality regulation should also recognize the benefits of combined heat and power (CHP).

Bluestein, J.; Horgan, S.; Eldridge, M. M.

2002-10-01T23:59:59.000Z

245

ANN - based distribution system reconfiguration  

SciTech Connect

This paper describes an Artificial Neural Network (ANN) - based distribution system reconfiguration scheme to reduce system loss. The ANN is trained for different load levels and different network topologies. The proposed scheme has been tested using a 38 - bus distribution system. The results are very promising.

Momoh, J.A.; Wang, Yanchun [Howard Univ., Washington, DC (United States). Electrical Engineering Dept.; Rizy, D.T. [Oak Ridge National Lab., TN (United States)

1997-08-01T23:59:59.000Z

246

Laser Spark Distribution and Ignition System  

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

Spark Distribution and Ignition System Spark Distribution and Ignition System Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implement- ing United States Patent Number 7,421,166 entitled "Laser Spark Distribution and Ignition System." Disclosed in this patent is NETL's laser spark distribution and ignition system, which reduces the high-power optical requirements normally needed for such a system by using optical fibers to deliver low-peak-energy pumping pulses to a laser amplifier or laser oscillator. Laser spark generators then produce a high-peak-power laser spark from a single low power pulse. The system has ap- plications in natural gas fueled reciprocating engines, turbine combustors, explosives, and laser induced breakdown spectroscopy diagnostic sensors.

247

Compatibility Tests for Dissimilar Types of Distributed Generation Powering a Microgrid  

Science Conference Proceedings (OSTI)

Microgrids are small power systems that can operate independently of the bulk power system. They are composed of one or more distributed resources (DR) and electrical loads that are interconnected by a distribution system. Most of today's microgrids are fairly simple in design, consisting of a single generator supplying a dedicated load or of multiple identical generating units ganged to operate much like a single unit. This report addresses technical issues involved when dissimilar generators are used.

2003-03-12T23:59:59.000Z

248

The Value of Distributed Generation under Different TariffStructures  

Science Conference Proceedings (OSTI)

Distributed generation (DG) may play a key role in a modern energy system because it can improve energy efficiency. Reductions in the energy bill, and therefore DG attractiveness, depend on the electricity tariff structure; a system created before widespread adoption of distributed generation. Tariffs have been designed to recover costs equitably amongst customers with similar consumption patterns. Recently, electric utilities began to question the equity of this electricity pricing structure for standby service. In particular, the utilities do not feel that DG customers are paying their fair share of transmission and distribution costs - traditionally recovered through a volumetric($/kWh) mechanism - under existing tariff structures. In response, new tariff structures with higher fixed costs for DG have been implemented in New York and in California. This work analyzes the effects of different electricity tariff structures on DG adoption. First, the effects of the new standby tariffs in New York are analyzed in different regions. Next generalized tariffs are constructed, and the sensitivity to varying levels of the volumetric and the demand ($/kW, i.e. maximum rate) charge component are analyzed on New York's standard and standby tariff as well as California's standby tariff. As expected, DG profitability is reduced with standby tariffs, but often marginally. The new standby structures tend to promote smaller base load systems. The amount of time-of-day variability of volumetric pricing seems to have little effect on DG economics.

Firestone, Ryan; Magnus Maribu, Karl; Marnay, Chris

2006-05-31T23:59:59.000Z

249

Integrating Small Scale Distributed Generation into a Deregulated Market: Control Strategies and Price Feedback  

E-Print Network (OSTI)

Small scale power generating technologies, such as gas turbines, small hydro turbines, photovoltaics, wind turbines and fuel cells, are gradually replacing conventional generating technologies, for various applications, in the electric power system. The industry restructuring process in the United States is exposing the power sector to market forces, which is creating competitive structures for generation and alternative regulatory structures for the transmission and distribution systems. The potentially conflicting economic and technical demands of the new, independent generators introduce a set of significant uncertainties. What balance between market forces and centralized control will be found to coordinate distribution system operations? How will the siting of numerous small scale generators in distribution feeders impact the technical operations and control of the distribution system? Who will provide ancillary services (such as voltage support and spinning reserves) in the new competitive environment? This project investigates both the engineering and market integration of distributed generators into the distribution system. On the technical side, this project investigates the frequency performance of a distribution system that has multiple small scale generators. Using IEEE sample distribution systems and new dynamic generator models, this project develops general methods for

Judith Cardell; Marija Ili?; Richard D. Tabors

1997-01-01T23:59:59.000Z

250

Distributed Generation Study/Modern Landfill | Open Energy Information  

Open Energy Info (EERE)

Landfill Landfill < Distributed Generation Study Jump to: navigation, search Study Location Model City, New York Site Description Other Utility Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3516 Heat Recovery Systems Built-in Fuel Biogas System Installer Innovative Energy Systems System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 7 Stand-alone Capability Seamless Power Rating 5600 kW5.6 MW 5,600,000 W 5,600,000,000 mW 0.0056 GW 5.6e-6 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 28000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2004/12/31 Monitoring Termination Date 1969/12/31

251

Distributed Generation Study/VIP Country Club | Open Energy Information  

Open Energy Info (EERE)

VIP Country Club VIP Country Club < Distributed Generation Study Jump to: navigation, search Study Location New Rochelle, New York Site Description Commercial-Other Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Advanced Power Systems System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 3 Stand-alone Capability Seamless Power Rating 180 kW0.18 MW 180,000 W 180,000,000 mW 1.8e-4 GW 1.8e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 750000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/01/24 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

252

A Radical Distributed Architecture for Local Energy Generation...  

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

A Radical Distributed Architecture for Local Energy Generation, Distribution, and Sharing Speaker(s): Randy Katz Date: April 25, 2008 - 12:00pm Location: 90-3122 Seminar HostPoint...

253

On Optimization of Reliability of Distributed Generation-Enhanced Feeders  

Science Conference Proceedings (OSTI)

Placement of protection devices in a conventionalfeeder (without distributed generation) is often performedso as to minimize traditional reliability indices (SAIDI,SAIFI, MAIFIe...), assuming the sole source(s) of energyat substation(s). Distributed ...

A. Pregelj; M. Begovic; A. Rohatgi; D. Novosel

2003-01-01T23:59:59.000Z

254

Implementation of Distributed Key Generation Algorithms using Secure Sockets  

Science Conference Proceedings (OSTI)

Distributed Key Generation (DKG) protocols are indispensable in the design of any cryptosystem used in communication networks. DKG is needed to generate public/private keys for signatures or more generally for encrypting/decrypting messages. One such ...

A. T. Chronopoulos; F. Balbi; D. Veljkovic; N. Kolani

2004-08-01T23:59:59.000Z

255

Distributed Generation: Issues Concerning a Changing Power Grid Paradigm.  

E-Print Network (OSTI)

??Distributed generation is becoming increasingly prevalent on power grids around the world. Conventional designs and grid operations are not always sufficient for handling the implementation… (more)

Therien, Scott G.M.

2010-01-01T23:59:59.000Z

256

Distributed Renewable Energy Generation and Landscape Architecture: A Critical Review.  

E-Print Network (OSTI)

??Governments and utility organizations around the world have mandated and provided incentives for new distributed renewable energy generation (DREG) capacity, and market projections indicate strong… (more)

Beck, Osmer DeVon

2010-01-01T23:59:59.000Z

257

Generating Multivariate Nonnormal Distribution Random Numbers Based on Copula Function  

E-Print Network (OSTI)

Abstract. Random numbers of multivariate nonnormal distribution are strongly requested by the area of theoretic research and application in practice. A new algorithm of generating multivariate nonnormal distribution random numbers is given based on the Copula function, and theoretic analysis suggests that the algorithm is suitable to be feasible. Furthermore, simulation shows that the empirical distribution which is formed by random numbers generating from the proposed algorithm can well approach the original distribution.

Xiaoping Hu; Jianmin He; Hongsheng Ly

2006-01-01T23:59:59.000Z

258

Operation of Distributed Generation Under Stochastic Prices  

E-Print Network (OSTI)

-site DG installed by a microgrid in the presence of stochastic electricity and fuel prices. We proceed (natural gas generating cost) exceeds the natural gas generating cost (electricity price) by a significant fraction of energy conversion from primary fuels to electricity takes place closer to loads, i

259

Electricity Distribution System Workshop  

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

Discussion Summary Discussion Summary Electricity Transmission System Workshop 1 Grid Tech Team Discussion Summary Electricity Transmission System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Synthesized Challenges ............................................................................................................................. 5

260

NREL: Electric Infrastructure Systems Research - Distributed Energy  

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

Distributed Energy Resources Test Facility Distributed Energy Resources Test Facility NREL's Distributed Energy Resources Test Facility (DERTF) is a working laboratory for interconnection and systems integration testing. This state-of-the-art facility includes generation, storage, and interconnection technologies as well as electric power system equipment capable of simulating a real-world electric system. Photo of the Distributed Energy Resources Test Facility and an adjacent solar photovoltaic array. The Distributed Energy Resources Test Facility is located at the National Wind Technology Center near Boulder, Colorado. Take a virtual tour of the DERTF. Researchers at the facility can vary equipment configurations and introduce common electrical disturbances such as sags, swells, and harmonic issues on

Note: This page contains sample records for the topic "distributed generation system" 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

Emissions Benefits of Distributed Generation in the Texas Market  

Science Conference Proceedings (OSTI)

One potential benefit of distributed generation (DG) is a net reduction in air emissions. While DG will produce emissions, most notably carbon dioxide and nitrogen oxides, the power it displaces might have produced more. This study used a system dispatch model developed at Oak Ridge National Laboratory to simulate the 2012 Texas power market with and without DG. This study compares the reduction in system emissions to the emissions from the DG to determine the net savings. Some of the major findings are that 85% of the electricity displaced by DG during peak hours will be simple cycle natural gas, either steam or combustion turbine. Even with DG running as baseload, 57% of electricity displaced will be simple cycle natural gas. Despite the retirement of some gas-fired steam units and the construction of many new gas turbine and combined cycle units, the marginal emissions from the system remain quite high (1.4 lb NO{sub x}/MWh on peak and 1.1 lb NO{sub x}/MWh baseload) compared to projected DG emissions. Consequently, additions of DG capacity will reduce emissions in Texas from power generation in 2012. Using the DG exhaust heat for combined heat and power provides an even greater benefit, since it eliminates further boiler emissions while adding none over what would be produced while generating electricity. Further studies are warranted concerning the robustness of the result with changes in fuel prices, demands, and mixes of power generating technology.

Hadley, SW

2005-06-16T23:59:59.000Z

262

Assessment of Distributed Generation Potential in JapaneseBuildings  

Science Conference Proceedings (OSTI)

To meet growing energy demands, energy efficiency, renewable energy, and on-site generation coupled with effective utilization of exhaust heat will all be required. Additional benefit can be achieved by integrating these distributed technologies into distributed energy resource (DER) systems (or microgrids). This research investigates a method of choosing economically optimal DER, expanding on prior studies at the Berkeley Lab using the DER design optimization program, the Distributed Energy Resources Customer Adoption Model (DER-CAM). DER-CAM finds the optimal combination of installed equipment from available DER technologies, given prevailing utility tariffs, site electrical and thermal loads, and a menu of available equipment. It provides a global optimization, albeit idealized, that shows how the site energy loads can be served at minimum cost by selection and operation of on-site generation, heat recovery, and cooling. Five prototype Japanese commercial buildings are examined and DER-CAM applied to select the economically optimal DER system for each. The five building types are office, hospital, hotel, retail, and sports facility. Based on the optimization results, energy and emission reductions are evaluated. Furthermore, a Japan-U.S. comparison study of policy, technology, and utility tariffs relevant to DER installation is presented. Significant decreases in fuel consumption, carbon emissions, and energy costs were seen in the DER-CAM results. Savings were most noticeable in the sports facility (a very favourable CHP site), followed by the hospital, hotel, and office building.

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida,Masaru

2005-05-25T23:59:59.000Z

263

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

Tariff Structure on Distributed Generation Adoption in NewTariff Structure on Distributed Generation Adoption in NewTariff Structure on Distributed Generation Adoption in New

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

264

Distributed Generation Study/Arrow Linen | Open Energy Information  

Open Energy Info (EERE)

Study/Arrow Linen Study/Arrow Linen < Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Commercial-Other Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen 150-IC with ECS Heat Recovery Systems Built-in Fuel Natural Gas System Installer Energy Concepts System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 300 kW0.3 MW 300,000 W 300,000,000 mW 3.0e-4 GW 3.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 3000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2005/03/01 Monitoring Termination Date 1969/12/31

265

Distributed Generation Study/Elgin Community College | Open Energy  

Open Energy Info (EERE)

Elgin Community College Elgin Community College < Distributed Generation Study Jump to: navigation, search Study Location Elgin, Illinois Site Description Institutional-School/University Study Type Case Study Technology Internal Combustion Engine Prime Mover Waukesha VHP5108GL Heat Recovery Systems Beaird Maxim Model TRP-12 Fuel Natural Gas System Installer Morse Electric Company System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 4 Stand-alone Capability Manual Power Rating 3220 kW3.22 MW 3,220,000 W 3,220,000,000 mW 0.00322 GW 3.22e-6 TW Nominal Voltage (V) 4160 Heat Recovery Rating (BTU/hr) 11200000 Cooling Capacity (Refrig/Tons) 550 Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 1997/05/01

266

Distributed Generation Study/Wyoming County Community Hospital | Open  

Open Energy Info (EERE)

Wyoming County Community Hospital Wyoming County Community Hospital < Distributed Generation Study Jump to: navigation, search Study Location Warsaw, New York Site Description Institutional-Hospital/Health Care Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha VGF L36GSID Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 560 kW0.56 MW 560,000 W 560,000,000 mW 5.6e-4 GW 5.6e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2001/09/26

267

Distributed Generation Study/Tudor Gardens | Open Energy Information  

Open Energy Info (EERE)

Tudor Gardens Tudor Gardens < Distributed Generation Study Jump to: navigation, search Study Location New York, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Tecogen CM-75 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Aegis Energy System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 150 kW0.15 MW 150,000 W 150,000,000 mW 1.5e-4 GW 1.5e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 980000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/07/01 Monitoring Termination Date 1969/12/31

268

Distributed Generation Study/Patterson Farms | Open Energy Information  

Open Energy Info (EERE)

Farms Farms < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3508 Heat Recovery Systems Built-in Fuel Biogas System Installer RCM Digesters System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 180 kW0.18 MW 180,000 W 180,000,000 mW 1.8e-4 GW 1.8e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/03/10 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

269

Distributed Generation Study/Oakwood Health Care Center | Open Energy  

Open Energy Info (EERE)

Oakwood Health Care Center Oakwood Health Care Center < Distributed Generation Study Jump to: navigation, search Study Location Williamsville, New York Site Description Institutional-Hospital/Health Care Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha VGF 18GLD Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability Seamless Power Rating 600 kW0.6 MW 600,000 W 600,000,000 mW 6.0e-4 GW 6.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2800000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2001/12/20 Monitoring Termination Date 2003/01/03

270

Distributed Generation Study/Matlink Farm | Open Energy Information  

Open Energy Info (EERE)

Matlink Farm Matlink Farm < Distributed Generation Study Jump to: navigation, search Study Location Clymers, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha 145 Heat Recovery Systems Built-in Fuel Biogas System Installer Martin Machine System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 145 kW0.145 MW 145,000 W 145,000,000 mW 1.45e-4 GW 1.45e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1500000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2004/10/28 Monitoring Termination Date 2005/07/16 Primary Power Application Based Load

271

Distributed Generation Study/Waldbaums Supermarket | Open Energy  

Open Energy Info (EERE)

Waldbaums Supermarket Waldbaums Supermarket < Distributed Generation Study Jump to: navigation, search Study Location Hauppauge, New York Site Description Commercial-Supermarket Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Unifin HX Fuel Natural Gas System Installer CDH Energy Corp. System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 60 kW0.06 MW 60,000 W 60,000,000 mW 6.0e-5 GW 6.0e-8 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 500000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2002/08/02 Monitoring Termination Date 2006/07/21 Primary Power Application Based Load

272

Distributed Generation Study/Dakota Station (Minnegasco) | Open Energy  

Open Energy Info (EERE)

Station (Minnegasco) Station (Minnegasco) < Distributed Generation Study Jump to: navigation, search Study Location Burnsville, Minnesota Site Description Other Utility Study Type Case Study Technology Microturbine Prime Mover Capstone C30 Heat Recovery Systems Unifin Fuel Natural Gas System Installer Capstone Turbine Corp System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 30 kW0.03 MW 30,000 W 30,000,000 mW 3.0e-5 GW 3.0e-8 TW Nominal Voltage (V) 0 Heat Recovery Rating (BTU/hr) 290000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Customer Assembled Start Date 2000/03/13 Monitoring Termination Date 2002/03/31 Primary Power Application Based Load

273

Distributed Generation Study/Emerling Farm | Open Energy Information  

Open Energy Info (EERE)

Emerling Farm Emerling Farm < Distributed Generation Study Jump to: navigation, search Study Location Perry, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G379 Heat Recovery Systems Built-in Fuel Biogas System Installer RCM Digesters System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 200 kW0.2 MW 200,000 W 200,000,000 mW 2.0e-4 GW 2.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2000000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/06/07 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

274

Distributed Generation Study/Hudson Valley Community College | Open Energy  

Open Energy Info (EERE)

Valley Community College Valley Community College < Distributed Generation Study Jump to: navigation, search Study Location Troy, New York Site Description Institutional-School/University Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3516, Caterpillar DM5498, Caterpillar DM7915 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Siemens Building Technologies System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 6 Stand-alone Capability Seamless Power Rating 7845 kW7.845 MW 7,845,000 W 7,845,000,000 mW 0.00785 GW 7.845e-6 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 32500000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Custom Made Component Integration Factory Integrated

275

Distributed Generation Study/Floyd Bennett | Open Energy Information  

Open Energy Info (EERE)

Bennett Bennett < Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Other Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Montreal Construction System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability Seamless Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 230000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/07/21 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

276

Generating Probability Distributions using Multivalued Stochastic Relay Circuits  

E-Print Network (OSTI)

The problem of random number generation dates back to von Neumann's work in 1951. Since then, many algorithms have been developed for generating unbiased bits from complex correlated sources as well as for generating arbitrary distributions from unbiased bits. An equally interesting, but less studied aspect is the structural component of random number generation as opposed to the algorithmic aspect. That is, given a network structure imposed by nature or physical devices, how can we build networks that generate arbitrary probability distributions in an optimal way? In this paper, we study the generation of arbitrary probability distributions in multivalued relay circuits, a generalization in which relays can take on any of N states and the logical 'and' and 'or' are replaced with 'min' and 'max' respectively. Previous work was done on two-state relays. We generalize these results, describing a duality property and networks that generate arbitrary rational probability distributions. We prove that these network...

Lee, David

2011-01-01T23:59:59.000Z

277

Distributed Control System Log-Keeping Specification  

Science Conference Proceedings (OSTI)

Information generated within the distributed control system (DCS) at most fossil generating stations could be more fully used by converting relevant information into searchable operator logs. This can be done through automated techniques combined with operator oversight and review. As a result, operator log-keeping effectiveness can be greatly improved while reducing the burden on the operator.ObjectivesThis project was undertaken to create specifications for ...

2012-12-12T23:59:59.000Z

278

INTEGRATED CONTROL OF NEXT GENERATION POWER SYSTEM  

Science Conference Proceedings (OSTI)

Control methodologies provide the necessary data acquisition, analysis and corrective actions needed to maintain the state of an electric power system within acceptable operating limits. These methods are primarily software-based algorithms that are nonfunctional unless properly integrated with system data and the appropriate control devices. Components of the control of power systems today include protective relays, supervisory control and data acquisition (SCADA), distribution automation (DA), feeder automation, software agents, sensors, control devices and communications. Necessary corrective actions are still accomplished using large electromechanical devices such as vacuum, oil and gas-insulated breakers, capacitor banks, regulators, transformer tap changers, reclosers, generators, and more recently FACTS (flexible AC transmission system) devices. The recent evolution of multi-agent system (MAS) technologies has been reviewed and effort made to integrate MAS into next generation power systems. A MAS can be defined as ��a loosely-coupled network of problem solvers that work together to solve problems that are beyond their individual capabilities��. These problem solvers, often called agents, are autonomous and may be heterogeneous in nature. This project has shown that a MAS has significant advantages over a single, monolithic, centralized problem solver for next generation power systems. Various communication media are being used in the electric power system today, including copper, optical fiber and power line carrier (PLC) as well as wireless technologies. These technologies have enabled the deployment of substation automation (SA) at many facilities. Recently, carrier and wireless technologies have been developed and demonstrated on a pilot basis. Hence, efforts have been made by this project to penetrate these communication technologies as an infrastructure for next generation power systems. This project has thus pursued efforts to use specific MAS methods as well as pertinent communications protocols to imbed and assess such technologies in a real electric power distribution system, specifically the Circuit of the Future (CoF) developed by Southern California Edison (SCE). By modeling the behavior and communication for the components of a MAS, the operation and control of the power distribution circuit have been enhanced. The use of MAS to model and integrate a power distribution circuit offers a significantly different approach to the design of next generation power systems. For example, ways to control a power distribution circuit that includes a micro-grid while considering the impacts of thermal constraints, and integrating voltage control and renewable energy sources on the main power system have been pursued. Both computer simulations and laboratory testbeds have been used to demonstrate such technologies in electric power distribution systems. An economic assessment of MAS in electric power systems was also performed during this project. A report on the economic feasibility of MAS for electric power systems was prepared, and particularly discusses the feasibility of incorporating MAS in transmission and distribution (T&D) systems. Also, the commercial viability of deploying MAS in T&D systems has been assessed by developing an initial case study using utility input to estimate the benefits of deploying MAS. In summary, the MAS approach, which had previously been investigated with good success by APERC for naval shipboard applications, has now been applied with promising results for enhancing an electric power distribution circuit, such as the Circuit of the Future developed by Southern California Edison. The results for next generation power systems include better ability to reconfigure circuits, improve protection and enhance reliability.

None

2010-02-28T23:59:59.000Z

279

U.S. Distributed Generation Fuel Cell Program  

SciTech Connect

The Department of Energy (DOE) is the largest funder of fuel cell technology in the U.S. The DOE Office of Fossil Energy (FE) is developing high temperature fuel cells for distributed generation. It has funded the development of tubular solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC) power systems operating at up to 60% efficiency on natural gas. The remarkable environmental performance of these fuel cells makes them likely candidates to help mitigate pollution. DOE is now pursuing more widely applicable solid oxide fuel cells for 2010 and beyond. DOE estimates that a 5 kW solid oxide fuel cell system can reach $400/kW at reasonable manufacturing volumes. SECA - the Solid State Energy Conversion Alliance - was formed by the National Energy Technology Laboratory (NETL) and the Pacific Northwest National Laboratory (PNNL) to accelerate the commercial readiness of planar and other solid oxide fuel cell systems utilizing 3-10 kW size modules by taking advantage of the projected economies of production from a mass customization approach. In addition, if the modular 3-10 kW size units can be ganged or scaled up to larger sizes with no increase in cost, then commercial, microgrid and other distributed generation markets will become attainable. Further scale-up and hybridization of SECA SOFCs with gas turbines could result in penetration of the bulk power market. This paper reviews the current status of the solid oxide and molten carbonate fuel cells in the U.S.

Williams, Mark C.; Strakey, Joseph P.; Singhal, Subhash C.

2004-05-14T23:59:59.000Z

280

An integrated passive islanding detection method for distributed generators  

Science Conference Proceedings (OSTI)

This study proposes a new islanding detection method for use of grid-interconnected distributed generators (DG). The method is based on two indices: the rate of change of frequency (ROCOF) and the rate of change of voltage (ROCOV). When a DG is grid-interconnected, ... Keywords: distributed generator, islanding detection, rate of change of frequency, rate of change of voltage

Wen-Yeau Chang; Hong-Tzer Yang

2009-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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.


281

Matrix Element Distribution as a Signature of Entanglement Generation  

E-Print Network (OSTI)

We explore connections between an operator's matrix element distribution and its entanglement generation. Operators with matrix element distributions similar to those of random matrices generate states of high multi-partite entanglement. This occurs even when other statistical properties of the operators do not conincide with random matrices. Similarly, operators with some statistical properties of random matrices may not exhibit random matrix element distributions and will not produce states with high levels of multi-partite entanglement. Finally, we show that operators with similar matrix element distributions generate similar amounts of entanglement.

Yaakov S. Weinstein; C. Stephen Hellberg

2005-07-11T23:59:59.000Z

282

Operation of Distributed Generation Under Stochastic Prices  

Science Conference Proceedings (OSTI)

We model the operating decisions of a commercial enterprisethatneeds to satisfy its periodic electricity demand with either on-sitedistributed generation (DG) or purchases from the wholesale market. Whilethe former option involves electricity generation at relatively high andpossibly stochastic costs from a set of capacity-constrained DGtechnologies, the latter implies unlimited open-market transactions atstochastic prices. A stochastic dynamic programme (SDP) is used to solvethe resulting optimisation problem. By solving the SDP with and withoutthe availability of DG units, the implied option values of the DG unitsare obtained.

Siddiqui, Afzal S.; Marnay, Chris

2005-11-30T23:59:59.000Z

283

Distributed Generation in Buildings (released in AEO2005)  

Reports and Publications (EIA)

Currently, distributed generation provides a very small share of residential and commercial electricity requirements in the United States. The AEO2005 reference case projects a significant increase in electricity generation in the buildings sector, but distributed generation is expected to remain a small contributor to the sectors energy needs. Although the advent of higher energy prices or more rapid improvement in technology could increase the use of distributed generation relative to the reference case projection, the vast majority of electricity used in buildings is projected to continue to be purchased from the grid.

Information Center

2008-09-24T23:59:59.000Z

284

The Value of Distributed Generation (DG) under Different Tariff Structures  

Open Energy Info (EERE)

The Value of Distributed Generation (DG) under Different Tariff Structures The Value of Distributed Generation (DG) under Different Tariff Structures Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Value of Distributed Generation (DG) under Different Tariff Structures Focus Area: Renewable Energy Topics: Socio-Economic Website: eetd.lbl.gov/ea/emp/reports/60589.pdf Equivalent URI: cleanenergysolutions.org/content/value-distributed-generation-dg-under Language: English Policies: "Regulations,Financial Incentives" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. Regulations: Utility/Electricity Service Costs This report examines the standby tariff structures recently implemented in New York as a result of utilities feelings toward distributed generation

285

Assessment of Distributed Resources: A Case Study for Tri-State Generation and Transmission Association, Inc.  

Science Conference Proceedings (OSTI)

During the process of upgrading service for three distribution customers, Tri-State Generation and Transmission Association (Tri-State) evaluated various distributed generation (DIS-GEN) options. Candidate DIS-GEN systems competitive with other options could become the basis for customer upgrade solutions.

1997-12-05T23:59:59.000Z

286

An active islanding detection method for small-scale distributed generators  

Science Conference Proceedings (OSTI)

This paper proposes a new islanding detection method for use in a small-scale, grid-interconnected distributed generator system. The proposed islanding detection method is based on voltage fluctuation injection, which can be obtained through high-impedance ... Keywords: correlation factor, distributed generator, islanding detection, voltage fluctuation injection

Wen-Yeau Chang

2008-06-01T23:59:59.000Z

287

Economical design of gate-commutated inverters for the grid-tied distributed generators  

Science Conference Proceedings (OSTI)

The cost-effectiveness of small distributed generating resources is vital to the success of the high penetration of distributed generators within the microgrid concept. A common mechanism is the use of highly efficient inverters following the electrical storage systems. In this paper

Mujahidul Islam; Adedamola Omole; Arif Islam; Alexander Domijan Jr.

2011-01-01T23:59:59.000Z

288

Time series power flow analysis for distribution connected PV generation.  

SciTech Connect

Distributed photovoltaic (PV) projects must go through an interconnection study process before connecting to the distribution grid. These studies are intended to identify the likely impacts and mitigation alternatives. In the majority of the cases, system impacts can be ruled out or mitigation can be identified without an involved study, through a screening process or a simple supplemental review study. For some proposed projects, expensive and time-consuming interconnection studies are required. The challenges to performing the studies are twofold. First, every study scenario is potentially unique, as the studies are often highly specific to the amount of PV generation capacity that varies greatly from feeder to feeder and is often unevenly distributed along the same feeder. This can cause location-specific impacts and mitigations. The second challenge is the inherent variability in PV power output which can interact with feeder operation in complex ways, by affecting the operation of voltage regulation and protection devices. The typical simulation tools and methods in use today for distribution system planning are often not adequate to accurately assess these potential impacts. This report demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to assess the potential impacts in a more comprehensive manner. The QSTS simulations are applied to a set of sample feeders with high PV deployment to illustrate the usefulness of the approach. The report describes methods that can help determine how PV affects distribution system operations. The simulation results are focused on enhancing the understanding of the underlying technical issues. The examples also highlight the steps needed to perform QSTS simulation and describe the data needed to drive the simulations. The goal of this report is to make the methodology of time series power flow analysis readily accessible to utilities and others responsible for evaluating potential PV impacts.

Broderick, Robert Joseph; Quiroz, Jimmy Edward; Ellis, Abraham; Reno, Matthew J. [Georgia Institute of Technology, Atlanta, GA; Smith, Jeff [Electric Power Research Institute, Knoxville, TN; Dugan, Roger [Electric Power Research Institute, Knoxville, TN

2013-01-01T23:59:59.000Z

289

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

Energy; Grid systems; Optimization; Heat flow; Financialof grid power and by utilizing combined heat and power (CHP)

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

290

Self-generated magnetic fields in q-distributed plasmas  

SciTech Connect

A quasi-steady magnetic field can be generated with high-frequency electromagnetic radiation through wave-wave and wave-particle interactions in astrophysical plasmas and laser-produced plasmas. Nonlinear coupling equations of self-generated magnetic fields are obtained in nonextensive distribution frame, as a generalization for the standard Maxwellian distribution frame. The numerical results show that self-generated magnetic fields may collapse and lead to various turbulent patterns with different index q.

Li Dingguo [School of Materials Science and Engineering, Nanchang University, Nanchang 330047 (China); School of Nuclear Engineering and Technology, East China Institute of Technology, Fuzhou 344000 (China); Liu Sanqiu [School of Materials Science and Engineering, Nanchang University, Nanchang 330047 (China); School of Science, Nanchang University, Nanchang 330047 (China); Li Xiaoqing [School of Science, Nanchang University, Nanchang 330047 (China)

2013-02-15T23:59:59.000Z

291

Distributed Generation Source Stiffness and Its Impact on Voltage Distortion  

Science Conference Proceedings (OSTI)

Distributed generators with loads that create high harmonics can cause excessive voltage distortion. This report's objective was to evaluate under controlled laboratory conditions voltage distortion resulting from application of nonlinear load for three different types of rotary generators and one inverter-based generator. Test results also were used to verify the analytical model for predicting voltage distortion from nonlinear load application.

2001-11-27T23:59:59.000Z

292

Distributed Generation Investment by a Microgrid under  

E-Print Network (OSTI)

for publication. Each paper was reviewed externally by at least two leading researchers in the field. The topics; · Storage aspects of DER; · Microgrids; · Economic and operational aspects of DER; · Impact on power quality. DGs will make these systems more like the loop system, thereby providing higher reliability of service

293

Notice of Study Availability - Potential Benefits of Distributed Generation  

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

Study Availability - Potential Benefits of Distributed Study Availability - Potential Benefits of Distributed Generation and Rate-Related Issues That May Impede Their Expansion: Federal Register Notice Volume 72, No. 40 - Mar. 1, 2007 Notice of Study Availability - Potential Benefits of Distributed Generation and Rate-Related Issues That May Impede Their Expansion: Federal Register Notice Volume 72, No. 40 - Mar. 1, 2007 Federal Register Notice of availability of a study of the potential benefits of distributed generation and rate-related issues that may impede their expansion, and request for public comment. Study of the Potential Benefits of Distributed Generation and Rate- Related Issues That May Impede Their Expansion More Documents & Publications Notice of inquiry and request for Information - Study of the potential

294

Assessment of Microturbines as Distributed Generators  

Science Conference Proceedings (OSTI)

It has been suggested that microturbines will be the next major development in power generation technology. Just as industrial gas turbines are seen as having refuted the assumption that low cost power could only be produced by large power plants, there is a perception that small, mass-produced microturbines could produce grid-competitive power in kW-scale units. How realistic are the performance and cost claims of microturbine manufactures and what is the likely timeframe for the commercialization of th...

1999-12-13T23:59:59.000Z

295

Planning Methodology to Determine Practical Circuit Limits for Distributed Generation  

Science Conference Proceedings (OSTI)

Utility distribution planners are increasingly faced with accommodating large sizes of distributed generation (DG) on their power distribution circuits. In many states, the renewable portfolio standards and incentives from various sources have resulted in larger solar PV installations than experienced previously. These are often located in parts of the distribution circuits where voltage is more difficult to regulate. This project investigated planning methodologies for determining practical limits for D...

2010-12-31T23:59:59.000Z

296

Management of Active Distribution Networks with High Penetration of Distributed Generation.  

E-Print Network (OSTI)

??The penetration of distributed generation and wind power in particular is expected to increase significantly over the coming years, and a huge shift in control,… (more)

Arram, Ahmed

2012-01-01T23:59:59.000Z

297

CERTS Distributed Generation Test Bed Team  

E-Print Network (OSTI)

The electricity industry may well be standing at a technological threshold that leads to a new era built upon the most fundamental change in power systems engineering and organization since the original small isolated power networks of the nascent industry first began to be interconnected. The technical challenges, risks and rewards are all major and sobering. We hereby step across that threshold and accept the consequences.

Chris Marnay; Raquel Blanco; Kristina S. Hamachi; Cornelia P. Kawaan; Julie G. Osborn; F. Javier Rubio; Robert J. Yinger; Southern California Edison; Abbas A. Akhil; Ia National Laboratories

2000-01-01T23:59:59.000Z

298

Determining the Adequate Level of Distributed Generation Penetration...  

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

Determining the Adequate Level of Distributed Generation Penetration in Future Grids Speaker(s): Johan Driesen Date: March 18, 2004 - 12:00pm Location: Bldg. 90 Seminar HostPoint...

299

Standard Data Exchanges for Distribution System Management  

SciTech Connect

Databases and software tools for electric power distribution systems have not been integrated, and this leads to extra costs and restrictions imposed on utilities and other stakeholders. For example, distributed resource integration studies and modern grid technology assessments are more difficult and costly. New vendors face high market entry barriers, because it’s necessary to interface with large and customized data systems at each potential utility customer. This project promotes data and software tool integration, through a set of data translators based on a common object model. The data translators are delivered as open-source software, using appropriate Web software technologies. The parties who benefit include electric utilities (and their ratepayers), researchers at government laboratories and universities, small software companies wishing to enter the electric utility market, and parties wishing to interconnect distributed generation to a utility system.

Thomas E. McDermott

2007-10-05T23:59:59.000Z

300

Distributed Generation Investment by a Microgrid Under Uncertainty  

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

Distributed Generation Investment by a Microgrid Under Uncertainty Distributed Generation Investment by a Microgrid Under Uncertainty Speaker(s): Afzal Siddiqui Date: July 24, 2006 - 12:00pm Location: 90-3122 This study examines a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastc, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generation cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerates DG investment, while the option to disconnect entirely from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an

Note: This page contains sample records for the topic "distributed generation system" 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

Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui  

E-Print Network (OSTI)

1 Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui University, CA 94720-8163, USA, c_marnay@lbl.gov ABSTRACT. This paper examines a California-based microgrid-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity

Guillas, Serge

302

Advanced Distributed Generation LLC ADG | Open Energy Information  

Open Energy Info (EERE)

LLC ADG LLC ADG Jump to: navigation, search Name Advanced Distributed Generation LLC (ADG) Place Toledo, Ohio Zip OH 43607 Product ADG is a general contracting company specializing in the design and installation of photovoltaic (PV) systems. Coordinates 46.440613°, -122.847838° 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":46.440613,"lon":-122.847838,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

303

A Symplectic Method to Generate Multivariate Normal Distributions  

E-Print Network (OSTI)

The AMAS group at the Paul Scherrer Institute developed an object oriented library for high performance simulation of high intensity ion beam transport with space charge. Such particle-in-cell (PIC) simulations require a method to generate multivariate particle distributions as starting conditions. In a preceeding publications it has been shown that the generators of symplectic transformations in two dimensions are a subset of the real Dirac matrices (RDMs) and that few symplectic transformations are required to transform a quadratic Hamiltonian into diagonal form. Here we argue that the use of RDMs is well suited for the generation of multivariate normal distributions with arbitrary covariances. A direct and simple argument supporting this claim is that this is the "natural" way how such distributions are formed. The transport of charged particle beams may serve as an example: An uncorrelated gaussian distribution of particles starting at some initial position of the accelerator is subject to linear deformat...

Baumgarten, Christian

2012-01-01T23:59:59.000Z

304

Enhanced distributed energy resource system  

DOE Patents (OSTI)

A power transmission system including a direct current power source electrically connected to a conversion device for converting direct current into alternating current, a conversion device connected to a power distribution system through a junction, an energy storage device capable of producing direct current connected to a converter, where the converter, such as an insulated gate bipolar transistor, converts direct current from an energy storage device into alternating current and supplies the current to the junction and subsequently to the power distribution system. A microprocessor controller, connected to a sampling and feedback module and the converter, determines when the current load is higher than a set threshold value, requiring triggering of the converter to supply supplemental current to the power transmission system.

Atcitty, Stanley (Albuquerque, NM); Clark, Nancy H. (Corrales, NM); Boyes, John D. (Albuquerque, NM); Ranade, Satishkumar J. (Las Cruces, NM)

2007-07-03T23:59:59.000Z

305

Investment and Upgrade in Distributed Generation under Uncertainty  

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

Investment and Upgrade in Distributed Generation under Uncertainty Investment and Upgrade in Distributed Generation under Uncertainty Speaker(s): Afzal Siddiqui Karl Maribu Date: September 4, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only effciency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attractiveness of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the

306

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

Gabel and Andresen, HVAC Secondary Toolkil. Atlanta: ASHRAE,P_02 Measuring Advances in HVAC Distribution System Designdesign and operation of the HVAC thermal distribution system

Franconi, E.

2011-01-01T23:59:59.000Z

307

Integrating Smart Distributed Energy Resources with Distribution Management Systems  

Science Conference Proceedings (OSTI)

No portion of the electric power grid has been impacted more by grid modernization (that is, the “smart grid”) than the electric distribution system. A central part of this transformation is the distribution management system (DMS), which integrates numerous remote monitoring and central control facilities with enterprise-level systems to optimize distribution system performance and accomplish a variety of business goals. At the same time, distributed energy resources are often connected ...

2012-09-21T23:59:59.000Z

308

The Effect of Distributed Energy Resource Competition with Central Generation  

Science Conference Proceedings (OSTI)

Distributed Energy Resource (DER) has been touted as a clean and efficient way to generate electricity at end-use sites, potentially allowing the exhaust heat to be put to good use as well. However, despite its environmental acceptability compared to many other types of generation, it has faced some disapproval because it may displace other, cleaner generation technologies. The end result could be more pollution than if the DER were not deployed. On the other hand, the DER may be competing against older power plants. If the DER is built then these other plants may be retired sooner, reducing their emissions. Or it may be that DER does not directly compete against either new or old plant capacity at the decision-maker level, and increased DER simply reduces the amount of time various plants operate. The key factor is what gets displaced if DER is added. For every kWh made by DER a kWh (or more with losses) of other production is not made. If enough DER is created, some power plants will get retired or not get built so not only their production but their capacity is displaced. Various characteristics of the power system in a region will influence how DER impacts the operation of the grid. The growth in demand in the region may influence whether new plants are postponed or old plants retired. The generation mix, including the fuel types, efficiencies, and emission characteristics of the plants in the region will factor into the overall competition. And public policies such as ease of new construction, emissions regulations, and fuel availability will also come into consideration.

Hadley, SW

2003-12-10T23:59:59.000Z

309

Making the Most out of Distributed Generation without Endangering Normal Operation: A Model-Based Technical-Policy Approach.  

E-Print Network (OSTI)

??In this dissertation we introduce a model-based approach for efficiently locating and operating distributed generation (DG) without endangering stable system operation. The proposed approach supports… (more)

Nazari, Masoud Honarvar

2012-01-01T23:59:59.000Z

310

A Model of U.S. Commercial Distributed Generation Adoption  

Science Conference Proceedings (OSTI)

Small-scale (100 kW-5 MW) on-site distributed generation (DG) economically driven by combined heat and power (CHP) applications and, in some cases, reliability concerns will likely emerge as a common feature of commercial building energy systems over the next two decades. Forecasts of DG adoption published by the Energy Information Administration (EIA) in the Annual Energy Outlook (AEO) are made using the National Energy Modeling System (NEMS), which has a forecasting module that predicts the penetration of several possible commercial building DG technologies over the period 2005-2025. NEMS is also used for estimating the future benefits of Department of Energy research and development used in support of budget requests and management decisionmaking. The NEMS approach to modeling DG has some limitations, including constraints on the amount of DG allowed for retrofits to existing buildings and a small number of possible sizes for each DG technology. An alternative approach called Commercial Sector Model (ComSeM) is developed to improve the way in which DG adoption is modeled. The approach incorporates load shapes for specific end uses in specific building types in specific regions, e.g., cooling in hospitals in Atlanta or space heating in Chicago offices. The Distributed Energy Resources Customer Adoption Model (DER-CAM) uses these load profiles together with input cost and performance DG technology assumptions to model the potential DG adoption for four selected cities and two sizes of five building types in selected forecast years to 2022. The Distributed Energy Resources Market Diffusion Model (DER-MaDiM) is then used to then tailor the DER-CAM results to adoption projections for the entire U.S. commercial sector for all forecast years from 2007-2025. This process is conducted such that the structure of results are consistent with the structure of NEMS, and can be re-injected into NEMS that can then be used to integrate adoption results into a full forecast.

LaCommare, Kristina Hamachi; Ryan Firestone; Zhou, Nan; Maribu,Karl; Marnay, Chris

2006-01-10T23:59:59.000Z

311

Introduction to Distributed Generation and the CERTS Microgrid  

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

operation of small-scale generators clustered with loads in local groupings called microgrids. Conceptually and in simulation, a electrical engineering system that will allow...

312

Solid Oxide Fuel Cell Power Generation Systems  

Science Conference Proceedings (OSTI)

An increasing worldwide demand for premium power, emerging trend towards electric utility deregulation and distributed power generation, global environmental concerns and regulatory controls have accelerated the development of advanced fuel cell based power generation systems. Fuel cells convert chemical energy to electrical energy through electrochemical oxidation of gaseous and/or liquid fuels ranging from hydrogen to hydrocarbons. Electrochemical oxidation of fuels prevents the formation of Nox, while the higher efficiency of the systems reduces carbon dioxide emissions (kg/kWh). Among various fuel cell power generation systems currently being developed for stationary and mobile applications, solid oxide fuel cells (SOFC) offer higher efficiency (up to 80% overall efficiency in hybrid configurations), fuel flexibility, tolerance to CO poisoning, modularity, and use of non-noble construction materials of low strategic value. Tubular, planar, and monolithic cell and stack configurations are currently being developed for stationary and military applications. The current generation of fuel cells uses doped zirconia electrolyte, nickel cermet anode, doped Perovskite cathode electrodes and predominantly ceramic interconnection materials. Fuel cells and cell stacks operate in a temperature range of 800-1000 *C. Low cost ($400/kWe), modular (3-10kWe) SOFC technology development approach of the Solid State Energy Conversion Alliance (SECA) initiative of the USDOE will be presented and discussed. SOFC technology will be reviewed and future technology development needs will be addressed.

Singh, Prabhakar; Pederson, Larry R.; Simner, Steve P.; Stevenson, Jeffry W.; Viswanathan, Vish V.

2001-05-12T23:59:59.000Z

313

NEXT GENERATION TURBINE SYSTEM STUDY  

DOE Green Energy (OSTI)

Rolls-Royce has completed a preliminary design and marketing study under a Department of Energy (DOE) cost shared contract (DE-AC26-00NT40852) to analyze the feasibility of developing a clean, high efficiency, and flexible Next Generation Turbine (NGT) system to meet the power generation market needs of the year 2007 and beyond. Rolls-Royce evaluated the full range of its most advanced commercial aerospace and aeroderivative engines alongside the special technologies necessary to achieve the aggressive efficiency, performance, emissions, economic, and flexibility targets desired by the DOE. Heavy emphasis was placed on evaluating the technical risks and the economic viability of various concept and technology options available. This was necessary to ensure the resulting advanced NGT system would provide extensive public benefits and significant customer benefits without introducing unacceptable levels of technical and operational risk that would impair the market acceptance of the resulting product. Two advanced cycle configurations were identified as offering significant advantages over current combined cycle products available in the market. In addition, balance of plant (BOP) technologies, as well as capabilities to improve the reliability, availability, and maintainability (RAM) of industrial gas turbine engines, have been identified. A customer focused survey and economic analysis of a proposed Rolls-Royce NGT product configuration was also accomplished as a part of this research study. The proposed Rolls-Royce NGT solution could offer customers clean, flexible power generation systems with very high efficiencies, similar to combined cycle plants, but at a much lower specific cost, similar to those of simple cycle plants.

Frank Macri

2002-02-28T23:59:59.000Z

314

Solar energy power generation system  

SciTech Connect

A solar energy power generation system is described which consists of: (a) means for collecting and concentrating solar energy; (b) heat storage means; (c) Stirling engine means for producing power; (d) first heat transfer means for receiving the concentrated solar energy and for transferring heat to the heat storage means; and (e) second heat transfer means for controllably transferring heat from the storage means to the Stirling engine means and including a discharge heat pipe means for transferring heat to the Stirling engine means and further including means for inserting and withdrawing the discharge heat pipe means into and out of the heat storage means.

Nilsson, J.E.; Cochran, C.D.

1986-05-06T23:59:59.000Z

315

Multi-agent control and operation of electric power distribution systems.  

E-Print Network (OSTI)

??This dissertation presents operation and control strategies for electric power distribution systems containing distributed generators. First, models of microturbines and fuel cells are developed. These… (more)

Al-Hinai, Amer.

2005-01-01T23:59:59.000Z

316

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

California Gross System Electricity Production for 2001.CA. http://energy.ca.gov/electricity/gross_system_power.htmlCEC. 2002c. 1992-2001 Electricity Generation By Fuel Type.

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

317

Heat engine generator control system  

SciTech Connect

An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power request signal is related to an engine speed and the electrical parameter is varied in accordance with a speed control loop. Initially, the sense of change in the electrical parameter in response to a change in the power request signal is opposite that required to effectuate a steady state output power consistent with the power request signal. Thereafter, the electrical parameter is varied to converge the output member speed to the speed known to be associated with the desired electrical output power.

Rajashekara, Kaushik (Carmel, IN); Gorti, Bhanuprasad Venkata (Towson, MD); McMullen, Steven Robert (Anderson, IN); Raibert, Robert Joseph (Fishers, IN)

1998-01-01T23:59:59.000Z

318

Heat engine generator control system  

DOE Patents (OSTI)

An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power request signal is related to an engine speed and the electrical parameter is varied in accordance with a speed control loop. Initially, the sense of change in the electrical parameter in response to a change in the power request signal is opposite that required to effectuate a steady state output power consistent with the power request signal. Thereafter, the electrical parameter is varied to converge the output member speed to the speed known to be associated with the desired electrical output power. 8 figs.

Rajashekara, K.; Gorti, B.V.; McMullen, S.R.; Raibert, R.J.

1998-05-12T23:59:59.000Z

319

Ada in distributed systems: an overview  

Science Conference Proceedings (OSTI)

This paper reviews the available literature on the use of Ada in distributed systems. The following issues are discussed in more detail: units of distribution, program partitioning, building configurations, interprogram communication, type checking, ... Keywords: Ada, distributed systems, program partitioning

Marcin Paprzycki; Janusz Zalewski

1997-03-01T23:59:59.000Z

320

CEBAF Distributed Data Acquisition System  

SciTech Connect

There are thousands of signals distributed throughout Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) that are useful for troubleshooting and identifying instabilities. Many of these signals are only available locally or monitored by systems with small bandwidths that cannot identify fast transients. The Distributed Data Acquisition (Dist DAQ) system will sample and record these signals simultaneously at rates up to 40 Msps. Its primary function will be to provide waveform records from signals throughout CEBAF to the Experimental Physics and Industrial Control System (EPICS). The waveforms will be collected after the occurrence of an event trigger. These triggers will be derived from signals such as periodic timers or accelerator faults. The waveform data can then be processed to quickly identify beam transport issues, thus reducing down time and increasing CEBAF performance. The Dist DAQ system will be comprised of multiple standalone chassis distributed throughout CEBAF. They will be interconnected via a fiber optic network to facilitate the global triggering of events. All of the chassis will also be connected directly to the CEBAF Ethernet and run EPICS locally. This allows for more flexibility than the typical configuration of a single board computer and other custom printed circuit boards (PCB) installed in a card cage.

Trent Allison; Thomas Powers

2005-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Determining the Adequate Level of Distributed Generation Penetration in  

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

Determining the Adequate Level of Distributed Generation Penetration in Determining the Adequate Level of Distributed Generation Penetration in Future Grids Speaker(s): Johan Driesen Date: March 18, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare In this talk, Johan will discuss the technical barriers met while deploying distributed generation (DG) technology in the grid. These are related to voltage quality, reliability, stability of the grid, but also safety, environmental and economic issues are important. Eventually, the question 'how far can you go ?' is addressed. The range from small-scale local DG such as photovoltaics to large-scale (off-shore) wind farms are dealt with, each with their specific issues. The talk is illustrated with examples from research projects at the KULeuven financied by national and European

322

Poland - Economic and Financial Benefits of Distributed Generation  

Open Energy Info (EERE)

Poland - Economic and Financial Benefits of Distributed Generation Poland - Economic and Financial Benefits of Distributed Generation Small-Scale, Gas-Fired CHP Jump to: navigation, search Name Poland - Economic and Financial Benefits of Distributed Generation Small-Scale, Gas-Fired CHP Agency/Company /Organization Argonne National Laboratory Sector Energy Topics Background analysis Website http://www.dis.anl.gov/pubs/41 Country Poland Eastern Europe References http://www.dis.anl.gov/pubs/41763.pdf This article is a stub. You can help OpenEI by expanding it. The Polish energy markets have recently been restructured, opening the door to new players with access to new products and instruments. In response to this changed environment, the Government of Poland and the Polish Power Grid Company were interested in analyzing the competitiveness of

323

Distributed Generation: Which technologies? How fast will they emerge?  

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

Distributed Generation: Which technologies? How fast will they emerge? Distributed Generation: Which technologies? How fast will they emerge? Speaker(s): Tony DeVuono Date: March 16, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Julie Osborn Utility deregulation, environmental issues, increases in electricity demand, natural gas/electricity rate changes, new technologies, and several other key drivers are stimulating distributed generation globally. The technologies that have pushed ahead of the pack are micro turbines and fuel cells. Since Modine is a world leader in the manufacturing of heat transfer equipment, we are eager to play in this new, emerging market. Are the market drivers real? Will these technologies survive or even thrive? What are the pitfalls? If you had the responsibility in your company to spend millions and direct dozens of people down the DG path,

324

Integration of Demand Side Management, Distributed Generation, Renewable  

Open Energy Info (EERE)

Integration of Demand Side Management, Distributed Generation, Renewable Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 2, Annexes Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 2, Annexes Focus Area: Renewable Energy Topics: Policy, Deployment, & Program Impact Website: www.ieadsm.org/Files/Tasks/Task%20XVII%20-%20Integration%20of%20Demand Equivalent URI: cleanenergysolutions.org/content/integration-demand-side-management-di Language: English Policies: Regulations Regulations: Resource Integration Planning This report provides Annexes 1 through 7, which are country reports from

325

Integration of Demand Side Management, Distributed Generation, Renewable  

Open Energy Info (EERE)

Integration of Demand Side Management, Distributed Generation, Renewable Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 1, Main Report Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 1, Main Report Focus Area: Renewable Energy Topics: Policy, Deployment, & Program Impact Website: www.ieadsm.org/Files/Tasks/Task%20XVII%20-%20Integration%20of%20Demand Equivalent URI: cleanenergysolutions.org/content/integration-demand-side-management-di Language: English Policies: Regulations Regulations: Resource Integration Planning This task of the International Energy Agency's (IEA's) Demand-Side

326

Cascade Failures from Distributed Generation in Power Grids  

E-Print Network (OSTI)

Power grids are nowadays experiencing a transformation due to the introduction of Distributed Generation based on Renewable Sources. At difference with classical Distributed Generation, where local power sources mitigate anomalous user consumption peaks, Renewable Sources introduce in the grid intrinsically erratic power inputs. By introducing a simple schematic (but realistic) model for power grids with stochastic distributed generation, we study the effects of erratic sources on the robustness of several IEEE power grid test networks with up to 2000 buses. We find that increasing the penetration of erratic sources causes the grid to fail with a sharp transition. We compare such results with the case of failures caused by the natural increasing power demand.

Scala, Antonio; Scoglio, Caterina

2012-01-01T23:59:59.000Z

327

Water Heaters and Hot Water Distribution Systems  

E-Print Network (OSTI)

distribution system, ground-source heat pump and ground heatdistribution systems, ground-source heat pumps and ground

Lutz, Jim

2012-01-01T23:59:59.000Z

328

DOE Electricity Distribution System Workshop  

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

DISTRIBUTION SYSTEM WORKSHOP DISTRIBUTION SYSTEM WORKSHOP Mapping Challenges and Opportunities to Help Guide DOE R&D Investments over the Next Five Years Sheraton Crystal City, 1800 Jefferson Davis Hwy, Arlington, Virginia September 24-26, 2012 AGENDA Monday, September 24, 2012 1:00-1:30 Welcome and Introduction to the Grid Tech Team (GTT), Vision, and Framework The GTT synchronizes all grid-related activities across the DOE Dr. Anjan Bose, Grid Tech Team Lead 1:30-1:50 OE Vision, Activities, and Issues Patricia A. Hoffman, Assistant Secretary for the Office of Electricity Delivery and Energy Reliability (OE) 1:50-2:10 EERE Vision, Activities, and Issues Dr. David Danielson, Assistant Secretary for the Office of Energy Efficiency and Renewable Energy (EERE) 2:10-2:40 Open Q&A Rich Scheer,

329

List of Other Distributed Generation Technologies Incentives | Open Energy  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 123 Other Distributed Generation Technologies Incentives. CSV (rows 1 - 123) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Alternative Energy Portfolio Standard (Pennsylvania) Renewables Portfolio Standard Pennsylvania Investor-Owned Utility Retail Supplier Building Insulation Ceiling Fan

330

Sensors for Underground Distribution Systems  

Science Conference Proceedings (OSTI)

A variety of different sensors are needed for underground distribution applications. These include sensors for temperature monitoring to track possible overload issues and other issues that can cause heating in underground systems (for example, arcing), sensors for fault detection and characterization, and sensors for voltage and current monitoring to support a wide range of applications (for example, SCADA, volt/var control, and load flow management). In 2008, EPRI evaluated the present state of medium-...

2010-03-31T23:59:59.000Z

331

Emission Control Options for Distributed Resource Generators: A White Paper  

Science Conference Proceedings (OSTI)

This report analyzes the performance and cost of conventional and emerging emission control technologies for distributed resource generators (combustion turbines, microturbines, and reciprocating engines). The performance is benchmarked against the proposed California Air Resources Board (CARB) small generator certification standards for 2007, the most stringent of several emissions certification standards adopted or being considered. The costs are provided as capital cost and cost of electricity for emi...

2005-03-23T23:59:59.000Z

332

Turbine-Generator Auxilary Systems, Volume 3  

Science Conference Proceedings (OSTI)

The updated Turbine-Generator Auxiliary Systems, Volume 3: Generator Hydrogen System Maintenance Guide provides nuclear and fossil plant personnel with operation and maintenance guidance on the generator hydrogen system.BackgroundInput from member utilities of EPRI Program 65 as well as the Institute of Nuclear Power Operations (INPO) have indicated that maintenance guides are needed for turbine-generator auxiliary systems. The first auxiliary system ...

2012-12-03T23:59:59.000Z

333

Spectral Phase Distribution Retrieval through Coherent Control of Harmonic Generation  

SciTech Connect

The temporal intensity distribution of the third harmonic of a Ti:sapphire laser generated in Xe gas is fully reconstructed from its spectral phase and amplitude distributions. The spectral phases are retrieved by cross correlating the fundamental laser frequency field with that of the third harmonic, in a three laser versus one harmonic photon coupling scheme. The third harmonic spectral amplitude distribution is extracted from its field autocorrelation. The measured pulse duration is found to be in agreement with that expected from lowest order perturbation theory both for unstretched and chirped pulses.

Papalazarou, E.; Charalambidis, D. [Foundation for Research and Technology - Hellas, Institute of Electronic Structure and Laser, PO Box 1527, GR711 10 Heraklion (Crete) (Greece); Department of Physics, University of Crete, PO Box 2208, GR71003 Heraklion (Crete) (Greece); Kovacev, M.; Tzallas, P.; Benis, E.P.; Kalpouzos, C. [Foundation for Research and Technology - Hellas, Institute of Electronic Structure and Laser, PO Box 1527, GR711 10 Heraklion (Crete) (Greece); Tsakiris, G. D. [Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany)

2006-04-28T23:59:59.000Z

334

NEXT GENERATION GAS TURBINE SYSTEMS STUDY  

SciTech Connect

Under sponsorship of the U.S. Department of Energy's National Energy Technology Laboratory, Siemens Westinghouse Power Corporation has conducted a study of Next Generation Gas Turbine Systems that embraces the goals of the DOE's High Efficiency Engines and Turbines and Vision 21 programs. The Siemens Westinghouse Next Generation Gas Turbine (NGGT) Systems program was a 24-month study looking at the feasibility of a NGGT for the emerging deregulated distributed generation market. Initial efforts focused on a modular gas turbine using an innovative blend of proven technologies from the Siemens Westinghouse W501 series of gas turbines and new enabling technologies to serve a wide variety of applications. The flexibility to serve both 50-Hz and 60-Hz applications, use a wide range of fuels and be configured for peaking, intermediate and base load duty cycles was the ultimate goal. As the study progressed the emphasis shifted from a flexible gas turbine system of a specific size to a broader gas turbine technology focus. This shift in direction allowed for greater placement of technology among both the existing fleet and new engine designs, regardless of size, and will ultimately provide for greater public benefit. This report describes the study efforts and provides the resultant conclusions and recommendations for future technology development in collaboration with the DOE.

Benjamin C. Wiant; Ihor S. Diakunchak; Dennis A. Horazak; Harry T. Morehead

2003-03-01T23:59:59.000Z

335

NEXT GENERATION GAS TURBINE SYSTEMS STUDY  

DOE Green Energy (OSTI)

Under sponsorship of the U.S. Department of Energy's National Energy Technology Laboratory, Siemens Westinghouse Power Corporation has conducted a study of Next Generation Gas Turbine Systems that embraces the goals of the DOE's High Efficiency Engines and Turbines and Vision 21 programs. The Siemens Westinghouse Next Generation Gas Turbine (NGGT) Systems program was a 24-month study looking at the feasibility of a NGGT for the emerging deregulated distributed generation market. Initial efforts focused on a modular gas turbine using an innovative blend of proven technologies from the Siemens Westinghouse W501 series of gas turbines and new enabling technologies to serve a wide variety of applications. The flexibility to serve both 50-Hz and 60-Hz applications, use a wide range of fuels and be configured for peaking, intermediate and base load duty cycles was the ultimate goal. As the study progressed the emphasis shifted from a flexible gas turbine system of a specific size to a broader gas turbine technology focus. This shift in direction allowed for greater placement of technology among both the existing fleet and new engine designs, regardless of size, and will ultimately provide for greater public benefit. This report describes the study efforts and provides the resultant conclusions and recommendations for future technology development in collaboration with the DOE.

Benjamin C. Wiant; Ihor S. Diakunchak; Dennis A. Horazak; Harry T. Morehead

2003-03-01T23:59:59.000Z

336

Energy Storage and Distributed Generation in the Smart Grid: Characterization and Value Analysis  

Science Conference Proceedings (OSTI)

Many utilities are investing in the smart grid. These activities include acquiring the information and enterprise control technology that can communicate, control, and manage end-user loads and distributed energy resources. Smart grid investments are also intended to enable improved use, management, aggregation, and control of distributed energy resource (DER) assets including distributed generation and energy storage systems. However, little research has been conducted to estimate the value and cost of ...

2009-12-03T23:59:59.000Z

337

Technetium-99m generator system  

DOE Patents (OSTI)

A {sup 99}Mo/{sup 99m}Tc generator system includes a sorbent column loaded with a composition containing {sup 99}Mo. The sorbent column has an effluent end in fluid communication with an anion-exchange column for concentrating {sup 99m}Tc eluted from the sorbent column. A method of preparing a concentrated solution of {sup 99m}Tc includes the general steps of: (a) providing a sorbent column loaded with a composition containing {sup 99}Mo, the sorbent column having an effluent end in fluid communication with an anion-exchange column; (b) eluting the sorbent column with a salt solution to elute {sup 99m}Tc from the sorbent and to trap and concentrate the eluted {sup 99m}Tc on the ion-exchange column; and (c) eluting the concentrated {sup 99m}Tc from the ion-exchange column with a solution comprising a reductive complexing agent. 1 fig.

Mirzadeh, S.; Knapp, F.F. Jr.; Collins, E.D.

1998-06-30T23:59:59.000Z

338

The ATLAS Distributed Analysis System  

E-Print Network (OSTI)

In the LHC operations era, analysis of the multi-petabyte ATLAS data sample by globally distributed physicists is a challenging task. To attain the required scale the ATLAS Computing Model was designed around the concept of grid computing, realized in the Worldwide LHC Computing Grid (WLCG), the largest distributed computational resource existing in the sciences. The ATLAS experiment currently stores over 140 PB of data and runs about 140,000 concurrent jobs continuously at WLCG sites. During the first run of the LHC, the ATLAS Distributed Analysis (DA) service has operated stably and scaled as planned. More than 1600 users submitted jobs in 2012, with 2 million or more analysis jobs per week, peaking at about a million jobs per day. The system dynamically distributes popular data to expedite processing and maximally utilize resources. The reliability of the DA service is high but steadily improving; grid sites are continually validated against a set of standard tests, and a dedicated team of expert shifters ...

Legger, F; The ATLAS collaboration; Pacheco Pages, A; Stradling, A

2013-01-01T23:59:59.000Z

339

Internal Combustion Engine Advances for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

Internal combustion engines (ICEs) can play a potentially significant role as a distributed generation resource. This report provides intelligence on vendor programs and on advances in ICE technology that could lead to commercial offerings within a 2-5 year time frame.

1997-09-30T23:59:59.000Z

340

The Generation of Random Variates From a Relativistic Maxwellian Distribution  

E-Print Network (OSTI)

A procedure for generating random variates from a relativistic Maxwellian distribution with arbitrary temperature and drift velocity is presented. The algorithm is based on the rejection method and can be used to initialize particle velocities in kinetic simulations of plasmas and gases.

Swisdak, M

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Distributed Generation Implementation Guidelines: Siting, Environmental Permitting, and Licensing  

Science Conference Proceedings (OSTI)

In 1997, EPRI conducted a study of how distributed generation (DG) was implemented at approximately 125 facilities in California and throughout the Midwest. The results of that study, as well as subsequent interviews with key facilities done the following year, enabled EPRI to present guidelines representative of a "best practices" approach to implementing and operating a DG facility based on the experience of others.

1998-12-16T23:59:59.000Z

342

Modeling Distributed Electricity Generation in the NEMS Buildings Models  

Reports and Publications (EIA)

This paper presents the modeling methodology, projected market penetration, and impact of distributed generation with respect to offsetting future electricity needs and carbon dioxide emissions in the residential and commercial buildings sector in the Annual Energy Outlook 2000 (AEO2000) reference case.

Erin Boedecker

2011-01-25T23:59:59.000Z

343

Cascading Failures in Smart Grid -Benefits of Distributed Generation  

E-Print Network (OSTI)

Cascading Failures in Smart Grid - Benefits of Distributed Generation Xian Chen, Hieu Dinh, Bing reliability and reducing the risk of cascading blackouts is a critical issue. Smart grid is envisioned Wang Computer Science & Engineering Department, University of Connecticut, Storrs, CT 06269 Abstract--Smart

Wang, Bing

344

Distributed Generation Implementation Guidelines: Operations, Maintenance and Training  

Science Conference Proceedings (OSTI)

In 1997, EPRI conducted a study of how distributed generation (DG) was implemented at approximately 125 facilities in California and throughout the Midwest. Results of that study, as well as subsequent interviews with key facilities done the following year, enabled EPRI to develop guidelines representative of a "best practices" approach to implementing and operating a DG facility based on the experience of others.

1998-12-16T23:59:59.000Z

345

Hardware generation of arbitrary random number distributions from uniform distributions via the inversion method  

Science Conference Proceedings (OSTI)

We present an automated methodology for producing hardware-based random number generator (RNG) designs for arbitrary distributions using the inverse cumulative distribution function (ICDF). The ICDF is evaluated via piecewise polynomial approximation ... Keywords: Chebyshev approximation and theory, algorithms implemented in hardware, automatic synthesis, computer arithmetic, elementary function approximation, error analysis, gate arrays, piecewise polynomial approximation

Ray C. C. Cheung; Dong-U Lee; Wayne Luk; John D. Villasenor

2007-08-01T23:59:59.000Z

346

NREL: Electric Infrastructure Systems Research - Distributed...  

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

the distributed power industry in the development and testing of distributed power systems. Researchers use state-of-the-art laboratories and outdoor test beds to characterize...

347

An analysis of DC distribution systems .  

E-Print Network (OSTI)

??The Master's Thesis research focuses on analyzing the possibilities of using Direct Current distribution systems to distribute power to end users. Considering the shift in… (more)

Ajitkumar, Rohit

2011-01-01T23:59:59.000Z

348

Energy Storage and Distributed Energy Generation Project, Final Project Report  

Science Conference Proceedings (OSTI)

This report serves as a Final Report under the “Energy Storage and Distribution Energy Generation Project” carried out by the Transportation Energy Center (TEC) at the University of Michigan (UM). An interdisciplinary research team has been working on fundamental and applied research on: -distributed power generation and microgrids, -power electronics, and -advanced energy storage. The long-term objective of the project was to provide a framework for identifying fundamental research solutions to technology challenges of transmission and distribution, with special emphasis on distributed power generation, energy storage, control methodologies, and power electronics for microgrids, and to develop enabling technologies for novel energy storage and harvesting concepts that can be simulated, tested, and scaled up to provide relief for both underserved and overstressed portions of the Nation’s grid. TEC’s research is closely associated with Sections 5.0 and 6.0 of the DOE "Five-year Program Plan for FY2008 to FY2012 for Electric Transmission and Distribution Programs, August 2006.”

Schwank, Johannes; Mader, Jerry; Chen, Xiaoyin; Mi, Chris; Linic, Suljo; Sastry, Ann Marie; Stefanopoulou, Anna; Thompson, Levi; Varde, Keshav

2008-03-31T23:59:59.000Z

349

Iowa Distributed Wind Generation Project | Open Energy Information  

Open Energy Info (EERE)

Generation Project Generation Project Jump to: navigation, search Name Iowa Distributed Wind Generation Project Facility Iowa Distributed Wind Generation Project Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Consortium -- Cedar Falls leads with 2/3 ownership Developer Iowa Distributed Wind Generation Project Energy Purchaser Consortium -- Cedar Falls leads with 2/3 ownership Location Algona IA Coordinates 43.0691°, -94.2255° 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":43.0691,"lon":-94.2255,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

350

A Radical Distributed Architecture for Local Energy Generation,  

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

A Radical Distributed Architecture for Local Energy Generation, A Radical Distributed Architecture for Local Energy Generation, Distribution, and Sharing Speaker(s): Randy Katz Date: April 25, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The LoCal Project is developing Information Age solutions to the limiting resource of this century: energy. One hundred fifty years ago, humanity was transformed by harnessing energy for machinery and work. Toil by hand became routinely mechanized, inconceivable constructions became reality, and powered transport shrunk the world. A century later, computers brought an equally profound transformation, replacing mundane bookkeeping and obviating libraries, simulating the imperceptible, and placing knowledge at our fingertips. Information processing has sustained a 50-100% annualized

351

Distributed Energy Storage Systems: Deployments and Learnings  

Science Conference Proceedings (OSTI)

Distributed Energy Storage Systems (DESS) or so-called “edge-of-grid” systems are small scale energy storage systems that are positioned at the edge of the distribution grid, downstream of the distribution transformer, on the utility side of the meter. These systems have the potential to significantly improve power quality for the consumer, while also having the capability to provide distribution system support. Several field trials of these systems are presently underway or are being ...

2012-12-31T23:59:59.000Z

352

NREL: Energy Analysis - Distributed Generation Energy Technology Capital  

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

Capital Costs Capital Costs Transparent Cost Database Button The following charts indicate recent capital cost estimates for distributed generation (DG) renewable energy technologies. The estimates are shown in dollars per installed kilowatt of generating capacity or thermal energy capacity for thermal technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology capital cost estimates, please visit the Transparent Cost Database website for NREL's information

353

NREL: Energy Analysis - Distributed Generation Energy Technology Operations  

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

Operations and Maintenance Costs Operations and Maintenance Costs Transparent Cost Database Button The following charts indicate recent operations and maintenance (O&M) cost estimates for distributed generation (DG) renewable energy technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology operations and maintenance estimates, please visit the Transparent Cost Database website for NREL's information regarding vehicles, biofuels, and electricity generation.

354

Forced Oscillations in Wind Energy Generation Systems  

Science Conference Proceedings (OSTI)

Use of the doubly fed induction generator (DFIG) in wind energy generation systems allows variable speed operation by using partially rated back-to-back quadruple active and reactive power PWM converters. The control of the system is very complex. Despite ... Keywords: Wind energy generation system, forced oscillation, stability

Zhen Li; Siu-Chung Wong; Chi K. Tse

2009-11-01T23:59:59.000Z

355

Quantification of Regional Green House Gas Emission Impacts and Benefits for Distributed Generation  

Science Conference Proceedings (OSTI)

The electric power generation sector contributes about one-third of all green house gas (GHG) emissions in the United States. To curb green house gas emissions, all options in the electric power value chain must be considered and evaluated. More effective use of distributed photovoltaic (PV) systems and efficient use of natural gas via use in distributed combined heat, power (CHP), and cooling systems in the end-use sector may be options to mitigating GHG emissions. This research project quantitatively e...

2007-12-14T23:59:59.000Z

356

Circuit Functionality and Requirements for Future Grid Integration of Distributed Renewable Generation  

Science Conference Proceedings (OSTI)

Distributed Energy Resources (DER) is an emerging technology that offers the potential to improve power system reliability, increase generation diversity, and provide greater flexibility to help match the growing energy needs. Small, modular DER plants have shorter implementation and commissioning timelines and can be brought on-line faster. However, utilities are concerned with the adverse impact of DER on the operation and management of distribution systems. The concern with potential impacts of DER on...

2010-12-31T23:59:59.000Z

357

Air distribution effectiveness with stratified air distribution systems  

E-Print Network (OSTI)

, Ph.D Qingyan Chen, Ph.D. Student Member ASHRAE Fellow ASHRAE ABSTRACT Stratified air distribution distribution systems has been taken into consideration by the ASHRAE standards through the air distribution effectiveness. For example, Table 6-1 of ANSI/ASHRAE Standard 62.1-2004 (ASHRAE 2004) defines the minimum

Chen, Qingyan "Yan"

358

Net Metering Policy Development and Distributed Solar Generation in Minnesota: Overview of Trends in Nationwide Policy Development and Implications of Increasing the Eligible System Size Cap  

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

0 0 December 2009 Net Metering Policy Development in Minnesota: Overview of Trends in Nationwide Policy Development and Implications of Increasing the Eligible System Size Cap Elizabeth Doris, Sarah Busche, and Stephen Hockett National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-46670 December 2009 Net Metering Policy Development in Minnesota: Overview of Trends in Nationwide Policy Development and Implications of Increasing the Eligible System Size Cap

359

Current distribution and nonuniformity effects in MHD disk generators  

DOE Green Energy (OSTI)

Results of an experimental and analytical study of current distribution and nonuniformity effects in combustion driven MHD disk generators are presented. The overall objective of the study was to investigate the importance of these phenomena to baseload power generation. The experimental work consisted of combustion-driven steady state experiments with a peg-wall channel operated in a superconducting magnet. The peg-wall construction allowed current and voltage distributions to be measured. The channel was operated with plasma temperatures up to 2750 K and magnetic field strengths up to 5.5 Tesla. The magnitudes of the currents and voltages were reduced by significant loss mechanisms, primarily electrode losses and current leakage through the wall caused by potassium seed penetration of the castable ceramic between the pegs. A simple circuit model accounting for these losses was developed enabling comparisons to be made with analytical calculations. Under normal uniform electrical loading the distributions measured in the channel were uniform as expected. Nonuniform electrical loading was used to produce and measure effects on the current distribution that occur only in the presence of high magnetic fields as required for MHD power generation.

Roseman, D.F.

1982-08-01T23:59:59.000Z

360

Distributed Generation Investment by a Microgrid under Uncertainty  

Science Conference Proceedings (OSTI)

This paper examines a California-based microgrid?s decision to invest in a distributed generation (DG) unit fuelled by natural gas. While the long-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find a natural gas generation cost threshold that triggers DG investment. Furthermore, the consideration of operational flexibility by the microgrid increases DG investment, while the option to disconnect from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an investment threshold boundary and find that high electricity price volatility relative to that of natural gas generation cost delays investment while simultaneously increasing the value of the investment. We conclude by using this result to find the implicit option value of the DG unit when two sources of uncertainty exist.

Marnay, Chris; Siddiqui, Afzal; Marnay, Chris

2008-08-11T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Distributed Generation Investment by a Microgrid UnderUncertainty  

Science Conference Proceedings (OSTI)

This paper examines a California-based microgrid s decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generating cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerates DG investment, while the option to disconnect entirely from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an investment threshold boundary and find that high electricity price volatility relative to that of natural gas generating cost delays investment while simultaneously increasing the value of the investment. We conclude by using this result to find the implicit option value of the DG unit.

Siddiqui, Afzal; Marnay, Chris

2006-06-16T23:59:59.000Z

362

Laying the Groundwork: Lessons Learned from the Telecommunications Industry for Distributed Generation; Preprint  

SciTech Connect

The telecommunications industry went through growing pains in the past that hold some interesting lessons for the growing distributed generation (DG) industry. The technology shifts and stakeholders involved with the historic market transformation of the telecommunications sector mirror similar factors involved in distributed generation today. An examination of these factors may inform best practices when approaching the conduits necessary to accelerate the shifting of our nation's energy system to cleaner forms of generation and use. From a technical perspective, the telecom industry in the 1990s saw a shift from highly centralized systems that had no capacity for adaptation to highly adaptive, distributed network systems. From a management perspective, the industry shifted from small, private-company structures to big, capital-intensive corporations. This presentation will explore potential correlation and outline the lessons that we can take away from this comparison.

Wise, A. L.

2008-05-01T23:59:59.000Z

363

AC versus DC distribution systems- Did we get it right?  

DOE Green Energy (OSTI)

We presently enjoy a predominantly ac electrical distribution system, the engineering basis for which was designed over 100 years ago. While ac distribution systems have served us well, we should periodically pause to assess what opportunities we have accepted or been denied by the overwhelming predominance of ac electrical power distribution systems. What opportunities could be obtained by engineering dc distribution into at least portions of our present system? What advantages of the present ac distribution system should be recognized and protected? This paper will focus on distribution within premise and low-voltage distribution systems. Specifically, we will address the conversion efficiency costs of adopting various premise ac and dc distribution system topologies. According to a simple predictive model formulated in this paper, premise residential dc distribution will incur unfavorable total conversion efficiency compared with existing ac premise distribution. However, if a residence is supplied by a fuel cell or another dc generator, the total conversion efficiency within a residential dc distribution system could be similar to, or even better than, that for ac distribution.

Hammerstrom, Donald J.

2007-06-28T23:59:59.000Z

364

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

Science Conference Proceedings (OSTI)

The motivation and objective of this research is to determine the role of distributed generation (DG) in greenhouse gas reductions by: (1) applying the Distributed Energy Resources Customer Adoption Model (DER-CAM); (2) using the California Commercial End-Use Survey (CEUS) database for commercial buildings; (3) selecting buildings with electric peak loads between 100 kW and 5 MW; (4) considering fuel cells, micro-turbines, internal combustion engines, gas turbines with waste heat utilization, solar thermal, and PV; (5) testing of different policy instruments, e.g. feed-in tariff or investment subsidies.

Marnay, Chris; Stadler, Michael; Lipman, Tim; Lai, Judy; Cardoso, Goncalo; Megel, Olivier

2009-09-01T23:59:59.000Z

365

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

Science Conference Proceedings (OSTI)

Lawrence Berkeley National Laboratory (LBL) is working with the California Energy Commission (CEC) to determine the role of distributed generation (DG) in greenhouse gas reductions. The impact of DG on large industrial sites is well known, and mostly, the potentials are already harvested. In contrast, little is known about the impact of DG on commercial buildings with peak electric loads ranging from 100 kW to 5 MW. We examine how DG with combined heat and power (CHP) may be implemented within the context of a cost minimizing microgrid that is able to adopt and operate various smart energy technologies, such as thermal and photovoltaic (PV) on-site generation, heat exchangers, solar thermal collectors, absorption chillers, and storage systems. We use a mixed-integer linear program (MILP) that has the minimization of a site's annual energy costs as objective. Using 138 representative commercial sites in California (CA) with existing tariff rates and technology data, we find the greenhouse gas reduction potential for California's commercial sector. This paper shows results from the ongoing research project and finished work from a two year U.S. Department of Energy research project. To show the impact of the different technologies on CO2 emissions, several sensitivity runs for different climate zones within CA with different technology performance expectations for 2020 were performed. The considered sites can contribute between 1 Mt/a and 1.8 Mt/a to the California Air Resources Board (CARB) goal of 6.7Mt/a CO2 abatement potential in 2020. Also, with lower PV and storage costs as well as consideration of a CO2 pricing scheme, our results indicate that PV and electric storage adoption can compete rather than supplement each other when the tariff structure and costs of electricity supply have been taken into consideration. To satisfy the site's objective of minimizing energy costs, the batteries will be charged also by CHP systems during off-peak and mid-peak hours and not only by PV during sunny on-peak hours.

Stadler, Michael; Marnay, Chris; Cardoso, Goncalo; Megel, Olivier; Siddiqui, Afzal; Lai, Judy

2009-08-15T23:59:59.000Z

366

September 2013 Most Viewed Documents for Power Generation And Distribution  

Office of Scientific and Technical Information (OSTI)

Power Generation And Distribution Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 200 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 103 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 76 Feed-pump hydraulic performance and design improvement, Phase I: research program design. Final report Brown, W.H.; Gopalakrishnan, S.; Fehlau, R.; Thompson, W.E.; Wilson, D.G. (1982) 69 Seventh Edition Fuel Cell Handbook NETL (2004) 65 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P. (1997) 52 Controlled low strength materials (CLSM), reported by ACI Committee

367

Experimental Generation and Characterization of Uniformly Filled Ellipsoidal Electron Beam Distributions  

E-Print Network (OSTI)

Experimental Generation and Characterization of Uniformly Filled Ellipsoidal Electron Beam Distributions

Musumeci, P; Rosenzweig, J B; Scoby, C M

2008-01-01T23:59:59.000Z

368

Small Distributed Generation Applications in the Industrial Sector: A Screening Assessment  

Science Conference Proceedings (OSTI)

This report documents a screening assessment of small distributed generation applications in the industrial sector.

2001-12-04T23:59:59.000Z

369

Role of Distributed Generation in U.S. Energy Markets, The  

Reports and Publications (EIA)

Presentation on EIA's projections of energy markets with particular focus on distributed generation.

Information Center

2002-04-01T23:59:59.000Z

370

Intrusion ripple analysis in distributed information systems  

Science Conference Proceedings (OSTI)

Security is a very important aspect of distributed computing systems, especially in distributed information environments involving wide-area networks, such as internets. This paper addresses how a security breach, such as intrusion, propagates through ... Keywords: computer crime, distributed information systems, internets, intrusion ripple analysis, networked information system, ripple effect analysis, security breach propagation, software maintenance, wide-area networks

S. S. Yau; Jun Zhu

1997-10-01T23:59:59.000Z

371

Water Heaters and Hot Water Distribution Systems  

E-Print Network (OSTI)

Water Distribution System Recommendations for the 2008 Title- 24 Residential Building Energy Efficiency Standards .. 4 Multi-FamilyWater Distribution System Recommendations for the 2008 Title- 24 Residential Building Energy Efficiency Standards 11 Multi-FamilyWater Distribution System Recommendations for the 2008 Title- 24 Residential Building Energy Efficiency Standards 48 Multi-Family

Lutz, Jim

2012-01-01T23:59:59.000Z

372

Fuel cycle comparison of distributed power generation technologies.  

DOE Green Energy (OSTI)

The fuel-cycle energy use and greenhouse gas (GHG) emissions associated with the application of fuel cells to distributed power generation were evaluated and compared with the combustion technologies of microturbines and internal combustion engines, as well as the various technologies associated with grid-electricity generation in the United States and California. The results were primarily impacted by the net electrical efficiency of the power generation technologies and the type of employed fuels. The energy use and GHG emissions associated with the electric power generation represented the majority of the total energy use of the fuel cycle and emissions for all generation pathways. Fuel cell technologies exhibited lower GHG emissions than those associated with the U.S. grid electricity and other combustion technologies. The higher-efficiency fuel cells, such as the solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC), exhibited lower energy requirements than those for combustion generators. The dependence of all natural-gas-based technologies on petroleum oil was lower than that of internal combustion engines using petroleum fuels. Most fuel cell technologies approaching or exceeding the DOE target efficiency of 40% offered significant reduction in energy use and GHG emissions.

Elgowainy, A.; Wang, M. Q.; Energy Systems

2008-12-08T23:59:59.000Z

373

Distributed Generation Dispatch Optimization under VariousElectricity Tariffs  

Science Conference Proceedings (OSTI)

The on-site generation of electricity can offer buildingowners and occupiers financial benefits as well as social benefits suchas reduced grid congestion, improved energy efficiency, and reducedgreenhouse gas emissions. Combined heat and power (CHP), or cogeneration,systems make use of the waste heat from the generator for site heatingneeds. Real-time optimal dispatch of CHP systems is difficult todetermine because of complicated electricity tariffs and uncertainty inCHP equipment availability, energy prices, and system loads. Typically,CHP systems use simple heuristic control strategies. This paper describesa method of determining optimal control in real-time and applies it to alight industrial site in San Diego, California, to examine: 1) the addedbenefit of optimal over heuristic controls, 2) the price elasticity ofthe system, and 3) the site-attributable greenhouse gas emissions, allunder three different tariff structures. Results suggest that heuristiccontrols are adequate under the current tariff structure and relativelyhigh electricity prices, capturing 97 percent of the value of thedistributed generation system. Even more value could be captured bysimply not running the CHP system during times of unusually high naturalgas prices. Under hypothetical real-time pricing of electricity,heuristic controls would capture only 70 percent of the value ofdistributed generation.

Firestone, Ryan; Marnay, Chris

2007-05-01T23:59:59.000Z

374

Impact of wind generators on the stability of power system network  

Science Conference Proceedings (OSTI)

This paper investigates the impacts of wind generators on the transient stability of a small power system. Two types of wind generators are considered, a fixed speed and variable speed induction generators. The behavior of synchronous generator's rotor ... Keywords: distributed generators, fixed and variable speed wind generators, transient stability

K. A. Folly; K. Tjiuma

2007-05-01T23:59:59.000Z

375

Property:Distributed Generation/Site Description | Open Energy Information  

Open Energy Info (EERE)

Generation/Site Description Generation/Site Description Jump to: navigation, search This is a property of type String. The allowed values for this property are: Agricultural Commercial-Hotel Commercial-Ice Arena Commercial-High Rise Office Commercial-Low Rise Office Commercial-Refrigerated Warehouse Commercial-Restaurant Commercial-Retail Store Commercial-Supermarket Commercial-Theater Commercial-Other Institutional-Hospital/Health Care Institutional-Nursing Home Institutional-School/University Institutional-Other Residential-Multifamily-Single Building Residential-Multifamily-Multibuilding Residential-Single Family Industrial-Food Processing Industrial-Plastics Processing Industrial-Wood Products Industrial-Other Testing Laboratory Water Utility Other Utility Other Pages using the property "Distributed Generation/Site Description"

376

Distributed Energy Systems Integration Group (Fact Sheet)  

Science Conference Proceedings (OSTI)

Factsheet developed to describe the activites of the Distributed Energy Systems Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

Not Available

2009-10-01T23:59:59.000Z

377

Distributed Sensor Coordination for Advanced Energy Systems  

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

Distributed Sensor Coordination for Advanced Energy Systems Background As advanced energy systems grow in size, they require an increasing number of pressure, temperature, and...

378

A policy letter. DG-GRID Improving distribution network regulation for enhancing the share of sustainable distributed generation in Europe  

E-Print Network (OSTI)

A policy letter. DG-GRID Improving distribution network regulation for enhancing the share-generation of electricity and heat (CHP). This drives the growth of distributed generation (DG) ­ generators connected to the distribution network ­ to significant levels. The DG-GRID project1 carried out by nine European universities

379

Distributed Generation Capabilities National Energy Modeling System  

E-Print Network (OSTI)

.1.4 Case 4: 40% Fuel Cell and PV Tax Credit with Advanced Technology Costs ........ 16 3.1.5 Case 5: 40% Fuel Cell Tax Credit with Advanced Technology Costs ..................... 17 3.1.6 Case 6: 40% Tax cooling. The average electricity and hot water consumption is used to determine building fuel demand

380

Remote procedure execution software for distributed systems  

SciTech Connect

Remote Procedure Execution facilitates the construction of distributed software systems, spanning computers of various types. Programmers who use the RPX package specify subroutine calls which are to be executed on a remote computer. RPX is used to generate code for dummy routines which transmit input parameters and receive output parameters, as well as a main program which receives procedure call requests, calls the requested procedure, and returns the result. The package automatically performs datatype conversions and uses an appropriate connection oriented protocol. Supported operating systems/processors are VMS(VAX), UNIX(MIPS R2000, R3000) and Software Components Group's pSOS (680x0). Connection oriented protocols are supported over Ethernet (TCP/IP) and RS232 (a package of our own design). 2 refs., 2 figs.

Petravick, D.L.; Berman, E.F.; Sergey, G.P.

1989-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network (OSTI)

for distributed generation . . . . . . . . . . . . . . 50environmentally benign distributed generation in a varietyfor inexpensive Distributed Generation (DG) technologies in

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

382

Heat Distribution Systems | Department of Energy  

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

Distribution Systems Distribution Systems Heat Distribution Systems May 16, 2013 - 5:26pm Addthis Radiators are used in steam and hot water heating. | Photo courtesy of ©iStockphoto/Jot Radiators are used in steam and hot water heating. | Photo courtesy of ©iStockphoto/Jot Heat is distributed through your home in a variety of ways. Forced-air systems use ducts that can also be used for central air conditioning and heat pump systems. Radiant heating systems also have unique heat distribution systems. That leaves two heat distribution systems -- steam radiators and hot water radiators. Steam Radiators Steam heating is one of the oldest heating technologies, but the process of boiling and condensing water is inherently less efficient than more modern systems, plus it typically suffers from significant lag times between the

383

Definition: Distribution Management System | Open Energy Information  

Open Energy Info (EERE)

Management System Management System Jump to: navigation, search Dictionary.png Distribution Management System A Distribution Management System (DMS) is a utility IT system capable of collecting, organizing, displaying and analyzing real-time or near real-time electric distribution system information. A DMS can also allow operators to plan and execute complex distribution system operations in order to increase system efficiency, optimize power flows, and prevent overloads. A DMS can interface with other operations applications such as geographic information systems (GIS), outage management systems (OMS), and customer information systems (CIS) to create an integrated view of distribution operations.[1] View on Wikipedia Wikipedia Definition In the recent years, utilization of electrical energy increased

384

Curtailing Intermittent Generation in Electrical Systems  

Science Conference Proceedings (OSTI)

Energy generation from intermittent renewable sources introduces additional variability into electrical systems, resulting in a higher cost of balancing against the increased variabilities. Ways to balance demand and supply for electricity include using ... Keywords: economic curtailment, energy storage operations, flexible generation, intermittent generation, operations management practice, wind power

Owen Q. Wu, Roman Kapuscinski

2013-10-01T23:59:59.000Z

385

A code generation approach to optimizing high-performance distributed data stream processing  

Science Conference Proceedings (OSTI)

We present a code-generation-based optimization approach to bringing performance and scalability to distributed stream processing applications. We express stream processing applications using an operator-based, stream-centric language called SPADE, which ... Keywords: profile driven optimization, streaming systems

Bu?ra Gedik; Henrique Andrade; Kun-Lung Wu

2009-11-01T23:59:59.000Z

386

Multi-agent control and operation of electric power distribution systems  

Science Conference Proceedings (OSTI)

This dissertation presents operation and control strategies for electric power distribution systems containing distributed generators. First, models of microturbines and fuel cells are developed. These dynamic models are incorporated in a power system ...

Amer Al-Hinai / Ali Feliachi

2005-01-01T23:59:59.000Z

387

Biogas-Fueled Distributed Generation: Three Manure Digester Case Studies  

Science Conference Proceedings (OSTI)

Biogas produced from the anaerobic digestion of livestock waste can provide electrical and thermal energy while solving environmental challenges, including waste management and greenhouse gas reduction. The three manure digester gas projects described in this report demonstrate the potential of such systems to provide co-generated power and heat.

2004-12-27T23:59:59.000Z

388

Low jitter RF distribution system  

SciTech Connect

A timing signal distribution system includes an optical frequency stabilized laser signal amplitude modulated at an rf frequency. A transmitter box transmits a first portion of the laser signal and receive a modified optical signal, and outputs a second portion of the laser signal and a portion of the modified optical signal. A first optical fiber carries the first laser signal portion and the modified optical signal, and a second optical fiber carries the second portion of the laser signal and the returned modified optical signal. A receiver box receives the first laser signal portion, shifts the frequency of the first laser signal portion outputs the modified optical signal, and outputs an electrical signal on the basis of the laser signal. A detector at the end of the second optical fiber outputs a signal based on the modified optical signal. An optical delay sensing circuit outputs a data signal based on the detected modified optical signal. An rf phase detect and correct signal circuit outputs a signal corresponding to a phase stabilized rf signal based on the data signal and the frequency received from the receiver box.

Wilcox, Russell; Doolittle, Lawrence; Huang, Gang

2012-09-18T23:59:59.000Z

389

Critical Needs for Distribution System Operations  

Science Conference Proceedings (OSTI)

The electric power distribution system (voltages up to 35 kV) is the most extensive network. While the operation of this system is of great importance from the reliability and safety point of view, managing this network varies among utilities from cases where modern distribution management systems are utilized to cases of minimal central operational capability. Distribution Management Systems (DMS) provide real time information to DSOs for the continuous moment by moment (24 hours a day, 7 days a week) o...

2005-12-20T23:59:59.000Z

390

Distributed Systems for Energy Management  

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

buildings-to-grid, responsive loads, on-line monitoring of efficiency programs, microgrids, and other forms of distributed resource management. A key challenge will be the...

391

Ensemble Generation for Models of Multimodal Systems  

Science Conference Proceedings (OSTI)

In this work the performance of ensembles generated by commonly used methods in a nonlinear system with multiple attractors is examined. The model used here is a spectral truncation of a barotropic quasigeostrophic channel model. The system ...

Robert N. Miller; Laura L. Ehret

2002-09-01T23:59:59.000Z

392

Architecture of the Entropia Distributed Computing System  

Science Conference Proceedings (OSTI)

Distributed Computing, the exploitation of idle cycles on pervasive desktop PC systems offers the opportunity to increase the available computing power by orders of magnitude (10x - 1000x). However, for desktop PC distributed computing ...

Andrew A. Chien

2002-04-01T23:59:59.000Z

393

Advanced applications for distribution system optimization  

Science Conference Proceedings (OSTI)

The primary objective for distribution system operation has always been to provide acceptable voltage for all customers under all loading conditions while maintaining safe conditions for the field workforce and the general public and protecting distribution ...

R. W. Uluski

2012-01-01T23:59:59.000Z

394

Turbocompressor downhole steam-generating system  

SciTech Connect

This patent describes a downhole steam-generating system comprising: an air compressor; a steam generating unit, including: a combustor for combusting fuel with the compressed air from the compressor producing combustor exhaust products; and steam conversion means, in indirect heat-exchange relationship with the combustor, for converting water which is fed into the steam-conversion means into steam; a turbine which is rotated by the combustor exhaust products and steam from the steam-generating unit, the rotational motion of the turbine is mechanically coupled to the air compressor to drive the air compressor; and control bypass means associated with the steam generating unit and turbine for regulating the relative amounts of the combustor exhaust product and steam delivered to the turbine from the steam generating unit. The air compressor and turbine form an integral turbocompressor unit. The turbocompressor unit, steam-generating unit and control bypass means are located downhole during operation of the steam-generating system.

Wagner, W.R.

1987-07-28T23:59:59.000Z

395

Managing trust in distributed agent systems  

Science Conference Proceedings (OSTI)

Software agent technology has attracted much attention for developing various distributed systems, composed of autonomous agents interacting with one another using particular mechanisms and protocols. Such systems provide high-level reconfigurability, ... Keywords: distributed agent systems, security, situation-awareness, trust, trust management

Stephen S. Yau

2006-09-01T23:59:59.000Z

396

Optimal Network Reconfiguration for Electric Distribution Systems  

Science Conference Proceedings (OSTI)

Utility distribution systems are at the center of the smart grid revolution and, at the same time, are challenged by an aging infrastructure, legacy systems that must be integrated with new technologies, changing load characteristics (such as electric vehicles), and the requirement for integration of widespread distributed resources. Given these challenges, electricity distribution companies are under pressure to improve reliability and system performance, build the necessary infrastructure for integrati...

2012-01-31T23:59:59.000Z

397

Variability of PV on Distribution Systems  

Science Conference Proceedings (OSTI)

In 2010, the Electric Power Research Institute (EPRI) along with several utilities began collecting high-resolution monitoring data on distributed solar photovoltaic (PV) systems throughout the United States. Included in these monitoring data are single-module PV systems distributed along selected feeders as well as several larger PV systems (up to 1.4 MW). Utilizing data from these sites, this report focuses specifically on examining the measured variability of solar PV distributed throughout a ...

2012-12-13T23:59:59.000Z

398

Intelligence in Electricity Networks for Embedding Renewables and Distributed Generation  

E-Print Network (OSTI)

Abstract Over the course of the 20 th century, the electrical power systems of industrialized economies have become one of the most complex systems created by mankind. In the same period, electricity made a transition from a novelty, to a convenience, to an advantage, and finally to an absolute necessity. World-wide electricity use has been ever-growing. The electricity infrastructure consists of two highlyinterrelated and complex subsystems for commodity trade and physical delivery. To ensure the infrastructure is up and running in the first place, the increasing electricity demand poses a serious threat. Additionally, there are a number of other trends that are forcing a change in infrastructure management. Firstly, there is a shift to intermittent sources: a larger share of renewables in the energy mix means a higher influence of weather patterns on generation. At the same time, introducing more combined heat and power generation (CHP) couples electricity production to heat demand patterns. Secondly, the location of electricity generation relative to the load centers is changing. Large-scale generation from wind is migrating towards and into the seas and oceans, away from the locations of high electricity demand. On

J. K. Kok; M. J. J. Scheepers; I. G. Kamphuis; J. K. Kok; M. J. J. Scheepers; I. G. Kamphuis

2010-01-01T23:59:59.000Z

399

Laser Spark Distribution and Ignition System  

Laser Spark Distribution and Ignition System Opportunity The Department of Energy’s National Energy Technology Laboratory (NETL) is seeking licensing partners ...

400

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

of this "thermal mixing", the heating and cooling loadsyear) Cooling Plant Heating Plant Fans Total Thermal Tobllthermal distribution system includes the components that carry the heating and cooling

Franconi, E.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Distributed Information System Development: Review of Some ...  

Science Conference Proceedings (OSTI)

2 Management Issues in Distributed Information System ... creation and testing, to software's installation and maintenance-and even extends to the improvement ...

402

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...

403

Distributionally robust control of constrained stochastic systems  

E-Print Network (OSTI)

May 1, 2013 ... Distributionally robust control of constrained stochastic systems. Bart P.G. Van Parys (bartvan ***at*** control.ee.ethz.ch) Daniel Kuhn (d.kuhn ...

404

Building a Smarter Distribution System in Pennsylvania  

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

PPL Electric Utilities Corporation Smart Grid Investment Grant 1 Building a Smarter Distribution System in Pennsylvania PPL Electric Utilities Corporation (PPL) provides...

405

Developing object-based distributed system  

E-Print Network (OSTI)

The OO-action systems formalism is a recent extension of action systems towards object-orientation. An OO-action system models an object-oriented system with active objects. In this paper we make the notion of a distributed object clear within this framework. Moreover, we show how object-based distributed systems are designed stepwise within a formal framework, the re nement calculus.

Marcello M. Bonsangue; Joost N. Kok; Kaisa Sere; Turku Centre; Computer Science

1999-01-01T23:59:59.000Z

406

The Value of Distributed Generation under Different Tariff Structures  

E-Print Network (OSTI)

Firestone, R. 2004. Distributed Energy Resources CustomerFramework and Tools for Distributed Energy Resources. LBNL-Energy Reliability, Distributed Energy Program of the U.S.

Firestone, Ryan; Magnus Maribu, Karl; Marnay, Chris

2006-01-01T23:59:59.000Z

407

Assessment of Distributed Generation Potential in Japanese Buildings  

E-Print Network (OSTI)

RMFirestone@lbl.gov Keywords distributed energy resources,technologies into distributed energy resource (DER) sys-zation program, the Distributed Energy Resources Custom- er

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2005-01-01T23:59:59.000Z

408

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

J.L. Edwards, (2003), “Distributed Energy Resources CustomerGas-Fired Distributed Energy Resource Characterizations”,Energy Reliability, Distributed Energy Program of the U.S.

Stadler, Michael

2010-01-01T23:59:59.000Z

409

Distributed Generation Potential of the U.S. Commercial Sector  

E-Print Network (OSTI)

2004. European Distributed Energy Projects, EUR 21239,Energy Sources and Distributed Energy Resources. Brussels,International Journal of Distributed Energy Resources, 1 (

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Gumerman, Etan; Marnay, Chris

2005-01-01T23:59:59.000Z

410

Optimal Model of Distributed Energy System by Using GAMS and Case Study  

E-Print Network (OSTI)

price and electricity price, etc) and 1) The benefit of distributed energy system is from the technical information (co-generation, PV,

Yang, Yongwen; Gao, Weijun; Ruan, Yingjun; Xuan, Ji; Zhou, Nan; Marnay, Chris

2005-01-01T23:59:59.000Z

411

Control system for fluid heated steam generator  

DOE Patents (OSTI)

A control system for controlling the location of the nucleate-boiling region in a fluid heated steam generator comprises means for measuring the temperature gradient (change in temperature per unit length) of the heating fluid along the steam generator; means for determining a control variable in accordance with a predetermined function of temperature gradients and for generating a control signal in response thereto; and means for adjusting the feedwater flow rate in accordance with the control signal.

Boland, James F. (Bonneville County, ID); Koenig, John F. (Idaho Falls, ID)

1985-01-01T23:59:59.000Z

412

Control system for fluid heated steam generator  

DOE Patents (OSTI)

A control system for controlling the location of the nucleate-boiling region in a fluid heated steam generator comprises means for measuring the temperature gradient (change in temperature per unit length) of the heating fluid along the steam generator; means for determining a control variable in accordance with a predetermined function of temperature gradients and for generating a control signal in response thereto; and means for adjusting the feedwater flow rate in accordance with the control signal.

Boland, J.F.; Koenig, J.F.

1984-05-29T23:59:59.000Z

413

Estimating Reliability of Critical Distribution System Components  

Science Conference Proceedings (OSTI)

EPRI has been developing methods for distribution planning since 1992. At that time, research directed at the concept of distributed resources begun by EPRI, Pacific Gas & Electric, and the National Renewable Energy Laboratory led to further consideration of distribution planning in general. More recently this analysis has raised the issue of aging of the distribution infrastructure and how to optimize maintenance and replacement of aging systems. This report discusses: 1) research into the prediction of...

2003-01-30T23:59:59.000Z

414

Steam Turbine Generator Auxiliary System Maintenance Guide--Volume 7 (Generator Excitation System)  

Science Conference Proceedings (OSTI)

Excitation systems are a critical part of the power generation system. They must be capable of providing a reliable excitation current to the generator and respond to system fluctuations while maintaining consistent generator voltage and power factor. Most modern excitation systems use a static or rotating solid-state exciter and include the associated components required to provide regulation and control over voltage and reactive power flow and to enhance power system stability. The proper operation of ...

2011-12-23T23:59:59.000Z

415

Checkpointing Using Mobile Agents in Distributed Systems  

Science Conference Proceedings (OSTI)

Traditional message passing based checkpointing and rollback recovery algorithms perform well for tightly coupled systems. In wide area distributed systems these algorithms may suffer from large overhead due to message passing delay and network traffic. ...

Partha Sarathi Mandal; Krishnendu Mukhopadhyaya

2007-03-01T23:59:59.000Z

416

POWER GENERATING NEUTRONIC REACTOR SYSTEM  

DOE Patents (OSTI)

This patent relates to reactor systems of the type wherein the cooiing medium is a liquid which is converted by the heat of the reaction to steam which is conveyed directly to a pnime mover such as a steam turbine driving a generatore after which it is condensed and returred to the coolant circuit. In this design, the reactor core is disposed within a tank for containing either a slurry type fuel or an aggregation of solid fuel elements such as elongated rods submerged in a liquid moderator such as heavy water. The top of the tank is provided with a nozzle which extends into an expansion chamber connected with the upper end of the tank, the coolant being maintained in the expansion chamber at a level above the nozzle and the steam being formed in the expansion chamber.

Vernon, H.C.

1958-03-01T23:59:59.000Z

417

The architecture and implementation of a distributed hypermedia storage system  

Science Conference Proceedings (OSTI)

Keywords: computer-supported cooperative work (CSCW), distributed data, distributed file systems, hypertext, performance, scalability

Douglas E. Shackelford; John B. Smith; F. Donelson Smith

1993-12-01T23:59:59.000Z

418

Lighting system with heat distribution face plate  

DOE Patents (OSTI)

Lighting systems having a light source and a thermal management system are provided. The thermal management system includes synthetic jet devices, a heat sink and a heat distribution face plate. The synthetic jet devices are arranged in parallel to one and other and are configured to actively cool the lighting system. The heat distribution face plate is configured to radially transfer heat from the light source into the ambient air.

Arik, Mehmet; Weaver, Stanton Earl; Stecher, Thomas Elliot; Kuenzler, Glenn Howard; Wolfe, Jr., Charles Franklin; Li, Ri

2013-09-10T23:59:59.000Z

419

Uses for Distributed Photovoltaic and Storage Systems  

Science Conference Proceedings (OSTI)

A range of factors are driving increases in the quantity of distributed photovoltaics connected to utility distribution systems. Going forward, it is anticipated that this growth will continue and that battery storage systems may also become common. These systems are expected to be both customer and utility owned. In either case, there is interest in understanding the full range of ways in which these systems might be used to maximize their value, to enable their integration in large numbers, and to opti...

2010-12-23T23:59:59.000Z

420

Scalable data management in distributed information systems  

Science Conference Proceedings (OSTI)

In the era of cloud computing and huge information systems, distributed applications should manage dynamic workloads; i.e., the amount of client requests per time unit may vary frequently and servers should rapidly adapt their computing efforts to those ... Keywords: NoSQL, cloud computing, data management, distributed system, high availability, scalability

M. Remedios Pallardó-Lozoya; Javier Esparza-Peidro; José-Ramón García-Escrivá; Hendrik Decker; Francesc D. Muñoz-Escoí

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Hybrid solar lighting distribution systems and components  

Science Conference Proceedings (OSTI)

A hybrid solar lighting distribution system and components having at least one hybrid solar concentrator, at least one fiber receiver, at least one hybrid luminaire, and a light distribution system operably connected to each hybrid solar concentrator and each hybrid luminaire. A controller operates all components.

Muhs, Jeffrey D. (Lenoir City, TN); Earl, Dennis D. (Knoxville, TN); Beshears, David L. (Knoxville, TN); Maxey, Lonnie C. (Powell, TN); Jordan, John K. (Oak Ridge, TN); Lind, Randall F. (Lenoir City, TN)

2011-07-05T23:59:59.000Z

422

Field Verification of Distributed Renewable Generation, Volume 1: Renewable Energy Field Test Concepts  

Science Conference Proceedings (OSTI)

This report describes field verification of distributed renewable generation and focuses on renewable energy field test concepts.

2003-03-25T23:59:59.000Z

423

The Effect of Distributed Generation on Distribution System Reliability.  

E-Print Network (OSTI)

??Electricity produced and delivered to customers constitutes one of the largest consumer markets in the world. As a nation we have become so dependent that… (more)

Sabir, Nura Nubee

2008-01-01T23:59:59.000Z

424

Investment and Upgrade in Distributed Generation under Uncertainty  

Science Conference Proceedings (OSTI)

The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplatingthe installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find that the microgrid prefers a direct investment strategy for low levels of volatility and a sequential one for higher levels of volatility.

Siddiqui, Afzal; Maribu, Karl

2008-08-18T23:59:59.000Z

425

Investment and Upgrade in Distributed Generation under Uncertainty ?  

E-Print Network (OSTI)

The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, we find that the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find ranges over which direct and sequential investment strategies dominate. Keywords:

Afzal Siddiqui; Karl Maribu

2007-01-01T23:59:59.000Z

426

Distribution System Cyber Security Architecture  

Science Conference Proceedings (OSTI)

The National Institute of Standards and Technology (NIST) has developed the NISTIR 7628: Guidelines for Smart Grid Cyber Security, while ASAP-SG has developed both the Security Profile for AMI (v2.0) and the Security Profile for Distribution Management. These documents are necessarily high level and generic, covering a broad range of smart grid assets, and focus exclusively on determining the security requirements. However, utilities and their vendors often cannot get a clear picture of what existing tec...

2010-12-31T23:59:59.000Z

427

Siting and sizing of distributed generation units using GA and OPF  

Science Conference Proceedings (OSTI)

This paper deals with the important task of finding the optimal siting and sizing of Distributed Generation (DG) units for a given distribution network so that the cost of active and reactive power generation can be minimized. The optimization technique ... Keywords: distributed generation, genetic alghorithm(GA), optimal power flow(OPF)

M. Hosseini Aliabadi; M. Mardaneh; B. Behbahan

2008-01-01T23:59:59.000Z

428

Turbine Generator Auxiliary Systems Volume 1: Turbine Generator Lubrication System Maintenance Guide -- 2012 Update  

Science Conference Proceedings (OSTI)

This report provides nuclear and fossil plant personnel with current maintenance information on lubrication system components and specifications, treatment, and analysis of the lubricating oil.BackgroundInput from member utilities indicated that maintenance guides were needed for the turbine-generator auxiliary systems. The first auxiliary system selected was the turbine-generator lubrication system used in nuclear and ...

2012-12-12T23:59:59.000Z

429

Lighting Group: Light Distribution Systems  

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

Retrofit Alternatives to Incandescent Downlights Hotel and Institutional Bathroom Lighting Portable Office Lighting Systems Low Glare Outdoor Retrofit Luminaire LED Luminaires...

430

Decoding the `Nature Encoded' Messages for Distributed Energy Generation Control in Microgrid  

E-Print Network (OSTI)

The communication for the control of distributed energy generation (DEG) in microgrid is discussed. Due to the requirement of realtime transmission, weak or no explicit channel coding is used for the message of system state. To protect the reliability of the uncoded or weakly encoded messages, the system dynamics are considered as a `nature encoding' similar to convolution code, due to its redundancy in time. For systems with or without explicit channel coding, two decoding procedures based on Kalman filtering and Pearl's Belief Propagation, in a similar manner to Turbo processing in traditional data communication systems, are proposed. Numerical simulations have demonstrated the validity of the schemes, using a linear model of electric generator dynamic system.

Gong, Shuping; Lai, Lifeng; Qiu, Robert C

2010-01-01T23:59:59.000Z

431

Measuring advances in HVAC distribution system designs  

Science Conference Proceedings (OSTI)

Substantial commercial building energy savings have been achieved by improving the performance of the HVAC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

Franconi, Ellen

1998-07-01T23:59:59.000Z

432

Measuring Advances in HVAC Distribution System Design  

SciTech Connect

Substantial commercial building energy savings have been achieved by improving the performance of the HV AC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

Franconi, E.

1998-05-01T23:59:59.000Z

433

Voltage control of emerging distribution systems with induction motor loads using robust LQG approach  

E-Print Network (OSTI)

mode" in emerging distribution systems. The small-signal stability analysis indicates that load voltageVoltage control of emerging distribution systems with induction motor loads using robust LQG has significant performance to improve the voltage profile of the distributed generation system

Pota, Himanshu Roy

434

Distributed Resource Cost Impacts on Transmission and Distribution Systems  

Science Conference Proceedings (OSTI)

This report examines distributed resource (DR) cost impacts on transmission and distribution (T&D) systems. It reviews and documents the cost structure of traditional T&D infrastructure and of DR technologies. It also shows economic analyses using the above costs for cases where DR is applied to solve T&D infrastructure problems and discusses the potential for DR to strand existing T&D investment. Finally, the report provides informative and interesting studies of cases in which utilities have used DR to...

2001-11-28T23:59:59.000Z

435

Benchmarking Distributed Generation Cost of Electricity and Characterization of Green House Gas Emission  

Science Conference Proceedings (OSTI)

Understanding the economic competitiveness and green house gas (GHG) footprint of all energy supply-side options has been identified by EPRI advisors as a key priority. This project benchmarks the cost of electricity and characterizes the GHG footprint of distributed generation (DG) options in various applications. DG technologies include small gas turbines, spark-ignited and diesel internal combustion engines, micro turbines, several types of fuel cells, Stirling engines, and photovoltaic systems.

2009-03-26T23:59:59.000Z

436

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Price to Marginal Cost of Natural Gas Generation, p FigurePrice to Marginal Cost of Natural Gas Generation, p FigureP e Marginal Cost of Natural Gas Generation (US$/kWh e ), C

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

437

Momentum distributions of sequential ionization generated by an intense laser pulse  

E-Print Network (OSTI)

The relative yield and momentum distributions of all multiply charged atomic ions generated by a short (30 fs) intense (10(14)-5 x 10(18) W/cm(2)) laser pulse are investigated using a Monte Carlo simulation. We predict a substantial shift in the maximum (centroid) of the ion-momentum distribution along the laser polarization as a function of the absolute phase. This effect should be experimentally detectable with currently available laser systems even for relatively long pulses, such as 25-30 fs. In addition to the numerical results, we present semianalytical scaling for the position of the maximum.

Shvetsov-Shilovski, N. I.; Sayler, A. M.; Rathje, T.; Paulus, Gerhard G.

2011-01-01T23:59:59.000Z

438

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

E-Print Network (OSTI)

of investment New Power Generation/Distribution EnterprisesDG Distributed Generation Disco distribution company DOEof fuel) Electricity generation, transmission, distribution

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-01-01T23:59:59.000Z

439

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

generation investment by a microgrid under uncertainty.M. E?ects of carbon tax on microgrid combined heat and powersite generation. Nevertheless, a microgrid contemplating the

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

440

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

to a put option on natural gas generation, which increasesgeneration (DG) unit that operates on natural gas.While the long-term natural gas generation cost is

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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

Is The Distributed Generation Revolution Coming: A Federal Perspective  

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

ways (or some combination of them): Reduce demand in the load center Build more generation close to the load center Build more transmission to enable distant generation to...

442

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

operating strategy of the microgrid is not known in advance,Generation Investment by a Microgrid Under Uncertainty AfzalGeneration Investment by a Microgrid Under Uncertainty Afzal

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

443

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Effects of carbon tax on microgrid combined heat and powerGeneration Investment by a Microgrid under Uncertainty AfzalGeneration Investment by a Microgrid under Uncertainty Afzal

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

444

Distribution load study aids system planning  

SciTech Connect

The Walnut Metering Project is an experimental substation and distribution system metering installation designed to provide quantitative data for distribution system planning. The design and operation of the metering equipment are discussed. After 3 years of operation it was concluded that the primary economic benefits anticipated from the determination of substation area diversity characteristics did not materialize because the peaking characteristics of the substations in the area were typically coincident with each other. However, the data obtained had a significant positive impact, both economically and operationally, in the field of equipment loadability, and is beneficial to activities related to load projections and distribution system planning. (LCL)

Scofield J.M.

1976-07-01T23:59:59.000Z

445

Development of an Integrated Distribution Management System  

Science Conference Proceedings (OSTI)

This final report details the components, functionality, costs, schedule and benefits of developing an Integrated Distribution Management System (IDMS) for power distribution system operation. The Distribution Automation (DA) and Supervisory Control and Data Acquisition (SCADA) systems used by electric power companies to manage the distribution of electric power to retail energy consumers are vital components of the Nation’s critical infrastructure. Providing electricity is an essential public service and a disruption in that service, if not quickly restored, could threaten the public safety and the Nation’s economic security. Our Nation’s economic prosperity and quality of life have long depended on the essential services that utilities provide; therefore, it is necessary to ensure that electric utilities are able to conduct their operations safely and efficiently. A fully integrated technology of applications is needed to link various remote sensing, communications and control devices with other information tools that help guide Power Distribution Operations personnel. A fully implemented IDMS will provide this, a seamlessly integrated set of applications to raise electric system operating intelligence. IDMS will enhance DA and SCADA through integration of applications such as Geographic Information Systems, Outage Management Systems, Switching Management and Analysis, Operator Training Simulator, and other Advanced Applications, including unbalanced load flow and fault isolation/service restoration. These apps are capable of utilizing and obtaining information from appropriately installed DER, and by integrating disparate systems, the Distribution Operators will benefit from advanced capabilities when analyzing, controlling and operating the electric system.

Schatz, Joe E.

2010-10-20T23:59:59.000Z

446

Optimal Design of Overhead Distribution Systems  

Science Conference Proceedings (OSTI)

It is not uncommon for overhead distribution conductors to make contact with trees. These incidental contacts can be either intermittent or relatively persistent, are typically not detectable by overcurrent protection systems, and typically do not result in interruptions on distributions circuits. This project focuses on assessing voltage gradients and fault currents created when trees come into contact with distribution conductors, allowing current to flow through the tree from point of contact to earth...

2007-12-19T23:59:59.000Z

447

GRR/Section 8-TX-c - Distributed Generation Interconnection | Open Energy  

Open Energy Info (EERE)

GRR/Section 8-TX-c - Distributed Generation Interconnection GRR/Section 8-TX-c - Distributed Generation Interconnection < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 8-TX-c - Distributed Generation Interconnection 8-TX-c - Distributed Generation Interconnection.pdf Click to View Fullscreen Contact Agencies Public Utility Commission of Texas Regulations & Policies PUCT Substantive Rule 25.211 PUCT Substantive Rule 25.212 Triggers None specified Click "Edit With Form" above to add content 8-TX-c - Distributed Generation Interconnection.pdf 8-TX-c - Distributed Generation Interconnection.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative This flowchart illustrates the process for distributed generation (DG)

448

A Case Study on Anti-islanding Protectionof Distributed Generation Using Autoground: Hydro-Québec Smart Grid Demonstration  

Science Conference Proceedings (OSTI)

This case study presents results of Hydro-Québec’s construction and testing of an anti-islanding approach, referred to as an autoground. The premise of the approach is to allow the distributed generation system time to detect the islanding situation. This is done using a pas­sive approach up until the moment just prior to reclosing of the substation breaker, at which point the autoground momentarily short circuits the feeder, forcing any remaining distributed generation resources to ...

2013-05-29T23:59:59.000Z

449

Distributed Energy System Validation, Commissioning and  

E-Print Network (OSTI)

Distributed Energy System Validation, Commissioning and Qualification Test Report Prepared Agreement No. DE-FC26-06NT42847 Hawai`i Distributed Energy Resource Technologies for Energy Security Subtask for the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative

450

Massively distributed systems: design issues and challenges  

Science Conference Proceedings (OSTI)

The forty year trend in the computing industry is away from centralized, high unit cost, low unit volume products toward distributed, low unit cost, high unit volume products. The next step in this process is the emergence of massively distributed systems. ...

Dan Nessett

1999-03-01T23:59:59.000Z

451

Main Generator Excitation System Upgrade/Retrofit  

Science Conference Proceedings (OSTI)

Upgrading or replacing even a portion of the excitation system of a generator can provide increased reliability and availability while simultaneously decreasing operational and maintenance costs. However, the upgrade or retrofit of an excitation system is a major cost involving some degree of implementation, installation, or performance risk. This report provides lessons learned, experiences, practices and solutions from plants that have installed excitation system retrofits and upgrades. This informatio...

2005-11-07T23:59:59.000Z

452

Control system for wind-powered generators  

DOE Green Energy (OSTI)

In a system of wind-powered generators, a reliable yet inexpensive control system is desirable. Such a system would be completely automatic so it could be left unattended for long periods. It would respond to electrical representations of data such as bearing temperature, vibration, wind velocity, turbine velocity, torque, or any other pertinent data. It would respond by starting or stopping the turbine, controlling the loading, or sounding an alarm. A microprocessor-based controller capable of these functions is described.

Kroth, G.J.

1977-05-01T23:59:59.000Z

453

Distributed redundancy and robustness in complex systems  

Science Conference Proceedings (OSTI)

The uptake and increasing prevalence of Web 2.0 applications, promoting new large-scale and complex systems such as Cloud computing and the emerging Internet of Services/Things, requires tools and techniques to analyse and model methods to ensure the ... Keywords: Algebraic connectivity, Distributed redundancy, Observer system, System robustness

Martin Randles; David Lamb; E. Odat; A. Taleb-Bendiab

2011-03-01T23:59:59.000Z

454

AC distribution system for TFTR pulsed loads  

DOE Green Energy (OSTI)

This paper outlines the AC distribution system associated with the Tokamak Fusion Test Reactor and discusses the significant areas related to design, protection, and equipment selection, particularly where there is a departure from normal utility and industrial applications.

Carroll, R.F.; Ramakrishnan, S.; Lemmon, G.N.; Moo, W.I.

1977-01-01T23:59:59.000Z

455

Integration of Distributed Resources in Electric Utility Distribution Systems: Distribution System Behavior Analysis for Urban and R ural Feeders  

Science Conference Proceedings (OSTI)

Accelerating commercialization of distributed resources (DR) has created the need for improved practices for integrating them with electric utility distribution systems. Analytical models of DR were developed for use in existing utility system simulation tools, and case studies on a rural and an urban distribution feeder were performed to assess the impacts of DR in various scenarios for those feeders.

1999-11-11T23:59:59.000Z

456

Integration of Distributed Resources in the Electric Utility Distribution Systems: Distribution System Behavior Analysis for Suburba n Feeder  

Science Conference Proceedings (OSTI)

Accelerating commercialization of distributed resources (DR) has created the need to improve practices for integrating them with electric utility distribution systems. Analytical models of DR were developed for use in existing utility system simulation tools, and initial case studies on a suburban distribution feeder were performed to assess the impacts of DR in various scenarios for that feeder.

1998-12-15T23:59:59.000Z

457

Learning and cost reductions for generating technologies in the national energy modeling system (NEMS)  

E-Print Network (OSTI)

other than distributed generation. The cost reductionsWind Solar Thermal Photovoltaic Distributed Generation-Base Distributed Generation-Peak D Vintage PLANT TYPE C

Gumerman, Etan; Marnay, Chris

2004-01-01T23:59:59.000Z

458

Strategy Guideline: Compact Air Distribution Systems  

SciTech Connect

This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannot provide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks include resistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

Burdick, A.

2013-06-01T23:59:59.000Z

459

The Potential Benefits of Distributed Generation and the Rate-Related  

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

The Potential Benefits of Distributed Generation and the The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion. Report Pursuant to Section 1817 of the Energy Policy Act of 2005. The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion More Documents & Publications The potential benefits of distributed deneration and rate-related issues that may impede issues its expansion. June 2007 Notice of inquiry and request for Information - Study of the potential benefits of distributed generation: Federal Register Notice Volume 71, No.

460

GREENHOUSE GAS REDUCTION POTENTIAL WITH COMBINED HEAT AND POWER WITH DISTRIBUTED GENERATION PRIME MOVERS - ASME 2012  

Science Conference Proceedings (OSTI)

Pending or recently enacted greenhouse gas regulations and mandates are leading to the need for current and feasible GHG reduction solutions including combined heat and power (CHP). Distributed generation using advanced reciprocating engines, gas turbines, microturbines and fuel cells has been shown to reduce greenhouse gases (GHG) compared to the U.S. electrical generation mix due to the use of natural gas and high electrical generation efficiencies of these prime movers. Many of these prime movers are also well suited for use in CHP systems which recover heat generated during combustion or energy conversion. CHP increases the total efficiency of the prime mover by recovering waste heat for generating electricity, replacing process steam, hot water for buildings or even cooling via absorption chilling. The increased efficiency of CHP systems further reduces GHG emissions compared to systems which do not recover waste thermal energy. Current GHG mandates within the U.S Federal sector and looming GHG legislation for states puts an emphasis on understanding the GHG reduction potential of such systems. This study compares the GHG savings from various state-of-the- art prime movers. GHG reductions from commercially available prime movers in the 1-5 MW class including, various industrial fuel cells, large and small gas turbines, micro turbines and reciprocating gas engines with and without CHP are compared to centralized electricity generation including the U.S. mix and the best available technology with natural gas combined cycle power plants. The findings show significant GHG saving potential with the use of CHP. Also provided is an exploration of the accounting methodology for GHG reductions with CHP and the sensitivity of such analyses to electrical generation efficiency, emissions factors and most importantly recoverable heat and thermal recovery efficiency from the CHP system.

Curran, Scott [ORNL; Theiss, Timothy J [ORNL; Bunce, Michael [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation system" 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.


461

System Support for Distributed Energy Management in Modular Operating Systems.  

E-Print Network (OSTI)

??This thesis proposes a novel approach for managing energy in modular operating systems. Our approach enables energy awareness if the resource-management subsystem is distributed among… (more)

Stöß, Jan

2010-01-01T23:59:59.000Z

462

BUILDOUT AND UPGRADE OF CENTRAL EMERGENCY GENERATOR SYSTEM, GENERATOR 3 AND 4 ELECTRICAL INSTALLATION  

Science Conference Proceedings (OSTI)

SECTION 01000—SUMMARY OF WORK PART 1—GENERAL 1.1 SUMMARY The work to be performed under this project consists of providing the labor, equipment, and materials to perform "Buildout and Upgrade of Central Emergency Generator System, Generator 3 and 4 Electrical Installation" for the National Aeronautics and Space Administration at the Dryden Flight Research Center (NASA/DFRC), Edwards, California 93523. All modifications to existing substations and electrical distribution systems are the responsibility of the contractor. It is the contractor’s responsibility to supply a complete and functionally operational system. The work shall be performed in accordance with these specifications and the related drawings. The work of this project is defined by the plans and specifications contained and referenced herein. This work specifically includes but is not limited to the following: Scope of Work - Installation 1. Install all electrical wiring and controls for new generators 3 and 4 to match existing electrical installation for generators 1 and 2 and in accordance with drawings. Contractor shall provide as-built details for electrical installation. 2. Install battery charger systems for new generators 3 and 4 to match existing battery charging equipment and installation for generators 1 and 2. This may require exchange of some battery charger parts already on-hand. Supply power to new battery chargers from panel and breakers as shown on drawings. Utilize existing conduits already routed to generators 3 and 4 to field route the new wiring in the most reasonable way possible. 3. Install electrical wiring for fuel/lube systems for new generators 3 and 4 to match existing installation for generators 1 and 2. Supply power to lube oil heaters and fuel system (day tanks) from panel and breakers as shown on drawings. Utilize existing conduits already routed to generators 3 and 4 to field route the new wiring in the most reasonable way possible. Add any conduits necessary to complete wiring to fuel systems. 4. Install power to new dampers/louvers from panel and breakers as shown on drawings. Wiring shall be similar to installation to existing dampers/louvers. Utilize existing conduits already routed to louver areas to field route the new wiring in the most reasonable way possible. Add any conduits necessary to complete wiring to new dampers/louvers. 5. Install power to jacket water heaters for new generators 3 and 4 from panel and breakers as shown on drawings. Utilize existing conduits already routed to generators 3 and 4 to field route the new wiring in the most reasonable way possible. 6. Install new neutral grounding resistor and associated parts and wiring for new generators 3 and 4 to match existing installation for generators 1 and 2. Grounding resistors will be Government Furnished Equipment (GFE). 7. Install two new switchgear sections, one for generator #3 and one for generator #4, to match existing generator #1 cubicle design and installation and in accordance with drawings and existing parts lists. This switchgear will be provided as GFE. 8. Ground all new switchgear, generators 3 and 4, and any other new equipment to match existing grounding connections for generators 1 and 2, switchgear and other equipment. See drawings for additional details. Grounding grid is already existing. Ensure that all grounding meets National Electrical Code requirements. 9. Cummins DMC control for the generator and switchgear syste

Gary D. Seifert; G. Shawn West; Kurt S. Myers; Jim Moncur

2006-07-01T23:59:59.000Z

463

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

history of concern about such emissions has led to significant improvements in the polluting characteristics of electricity generation

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

464

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Generation Facilities. California Energy Commission,Production for 2001. California Energy Commission,Power Plants. California Energy Commission, Sacramento, CA.

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

465

Turbine-Generator Auxiliary Systems, Volume 4: Generator Stator Cooling System  

Science Conference Proceedings (OSTI)

While there is a wealth of specific instructions, guidelines, experiences, and publications associated with water-cooled generators, the industry needs a comprehensive document that provides an unbiased overview of all technologies and related issues. This report deals with the specific features of water-cooled generators and the attached generator cooling water system. Though the primary focus is water-cooled stators, other possible components associated with rotor water cooling or attached systems, suc...

2008-12-22T23:59:59.000Z

466

Thermal distribution systems in commercial buildings  

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

Thermal distribution systems in commercial buildings Thermal distribution systems in commercial buildings Title Thermal distribution systems in commercial buildings Publication Type Journal Article LBNL Report Number LBNL-51860 Year of Publication 2003 Authors Diamond, Richard C., Craig P. Wray, Darryl J. Dickerhoff, Nance Matson, and Duo Wang Start Page Chapter Abstract Previous research suggests that HVAC thermal distribution systems in commercial buildings suffer from thermal losses, such as those caused by duct air leakage and poor duct location. Due to a lack of metrics and data showing the potentially large energy savings from reducing these losses, the California building industry has mostly overlooked energy efficiency improvements in this area. The purpose of this project is to obtain the technical knowledge needed to properly measure and understand the energy efficiency of these systems. This project has three specific objectives: to develop metrics and diagnostics for determining system efficiencies, to develop design and retrofit information that the building industry can use to improve these systems, and to determine the energy impacts associated with duct leakage airflows in an existing large commercial building. The primary outcome of this project is the confirmation that duct leakage airflows can significantly impact energy use in large commercial buildings: our measurements indicate that adding 15% duct leakage at operating conditions leads to an increase in fan power of about 25 to 35%. This finding is consistent with impacts of increased duct leakage airflows on fan power that have been predicted by previous simulations. Other project outcomes include the definition of a new metric for distribution system efficiency, the demonstration of a reliable test for determining duct leakage airflows, and the development of new techniques for duct sealing. We expect that the project outcomes will lead to new requirements for commercial thermal distribution system efficiency in future revisions of California's Title 24.

467

Laser Spark Distribution and Ignition System  

Disclosed in this patent is NETL’s laser spark distribution and ignition system, which reduces the high-power optical requirements normally needed for such a system by using optical fibers to deliver low-peak-energy pumping pulses to a laser amplifier ...

468

Load Forecasting for Modern Distribution Systems  

Science Conference Proceedings (OSTI)

Load forecasting is a fundamental activity for numerous organizations and activities within a utility, including planning, operations, and control. Transmission and Distribution (T&D) planning and design engineers use the load forecast to determine whether any changes and additions are needed to the electric system to satisfy the anticipated load. Other load forecast users include system operations, financial ...

2013-03-08T23:59:59.000Z

469

Building a Smarter Distribution System in Pennsylvania  

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

Study - PPL Electric Utilities Corporation Smart Grid Investment Grant Study - PPL Electric Utilities Corporation Smart Grid Investment Grant 1 Building a Smarter Distribution System in Pennsylvania PPL Electric Utilities Corporation (PPL) provides electricity to 1.4 million customers across central and eastern Pennsylvania. Having installed smart meters and other advanced technologies over the last several years, PPL has experience with operating smart grid systems and achieving operational improvements. To further improve quality of service for its customers, PPL is implementing a $38 million Smart Grid Investment Grant, which includes $19 million in Recovery Act funds from the U.S. Department of Energy (DOE). PPL is installing a distribution management system (DMS), distribution automation (DA) devices, and supporting communication systems in a pilot program in the Harrisburg

470

Pages that link to "Next Generation Power Systems Inc" | Open...  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Next Generation Power Systems Inc" Next Generation Power Systems Inc Jump to: navigation,...

471

Changes related to "Next Generation Power Systems Inc" | Open...  

Open Energy Info (EERE)

Special page Share this page on Facebook icon Twitter icon Changes related to "Next Generation Power Systems Inc" Next Generation Power Systems Inc Jump to: navigation,...

472

Low Cost High Concentration PV Systems for Utility Power Generation...  

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

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Low Cost High Concentration PV Systems for Utility Power Generation An...

473

Next Generation Attics and Roof Systems  

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

Next Generation Attics Next Generation Attics and Roof Systems William (Bill) Miller, Ph.D. ORNL WML@ORNL.GOV____ (865) 574-2013 April 4, 2013 Goals: Develop New Roof and Attic Designs  Reduce Space Conditioning Due to Attic  Convince Industry to Adopt Designs Building Envelope Program  Dr. William Miller  Dr. Som Shrestha  Kaushik Biswas, Ken Childs, Jerald Atchley, Phil Childs Andre Desjarlais (Group Leader) 32% Primary Energy 28% Primary Energy 2 | Building Technologies Office eere.energy.gov Purpose & Objectives

474

Protective, Modular Wave Power Generation System  

Science Conference Proceedings (OSTI)

The concept of small wave energy conversion modules that can be built into large, scalable arrays, in the same vein as solar panels, has been developed. This innovation lends itself to an organic business and development model, and enables the use of large-run manufacturing technology to reduce system costs. The first prototype module has been built to full-scale, and tested in a laboratory wave channel. The device has been shown to generate electricity and dissipate wave energy. Improvements need to be made to the electrical generator and a demonstration of an array of modules should be made in natural conditions.

Vvedensky, Jane M.; Park, Robert Y.

2012-11-27T23:59:59.000Z

475

Innovative Distributed Power Grid Interconnection and Control Systems: Final Report, December 11, 2000 - August 30, 2005  

SciTech Connect

The contract goal was to further advance distributed generation in the marketplace by making installations more cost-effective and compatible with existing systems. This was achieved by developing innovative grid interconnection and control systems.

DePodesta, K.; Birlingmair, D.; West, R.

2006-03-01T23:59:59.000Z

476

Wind generating capacity is distributed unevenly across the United ...  

U.S. Energy Information Administration (EIA)

The highest concentration of wind turbines in the United States is in the Great Plains states, where the best conditions for onshore wind power generation exist.

477

Definition: Generator-To-Load Distribution Factor | Open Energy...  

Open Energy Info (EERE)

on an identified transmission facility or Flowgate.1 Related Terms Load Shift Factor, transmission lines, Generator Shift Factor, transmission line, flowgate, smart grid...

478

Voltage Support in Distributed Generation by Power Electronics.  

E-Print Network (OSTI)

?? There is an increasing amount of power processed through power electronics in the areas of generation interface, energy storage and loads. This increment enables… (more)

Strand, Bjørn Erik

2008-01-01T23:59:59.000Z