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Sample records for utility power lines

  1. Secretary Chu Thanks Utility Staff and Line Workers For Their Efforts to Restore Power in the Wake of Hurricane Sandy

    Broader source: Energy.gov [DOE]

    As utility companies continue to work to restore power outages, Secretary Chu stopped by Pepco yesterday to personally thank the workers for their hard work.

  2. Power Towers for Utilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Towers for Utilities - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear

  3. Power line detection system

    DOE Patents [OSTI]

    Latorre, Victor R.; Watwood, Donald B.

    1994-01-01

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

  4. Power line detection system

    DOE Patents [OSTI]

    Latorre, V.R.; Watwood, D.B.

    1994-09-27

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

  5. Power Sales to Electric Utilities

    SciTech Connect (OSTI)

    1989-02-01

    The Public Utilities Regulatory Policies Act (PURPA) of 1979 requires that electrical utilities interconnect with qualifying facilities and purchase electricity at a rate based upon their full avoided costs (i.e., costs of providing both capacity and energy). Qualifying facilities (QF) include solar or geothermal electric units, hydropower, municipal solid waste or biomass-fired power plants, and cogeneration projects that satisfy maximum size, fuel use, ownership, location, and/or efficiency criteria. In Washington State, neither standard power purchase prices based upon a proxy ''avoided plant'', standard contracts, or a standard offer process have been used. Instead, a variety of power purchase contracts have been negotiated by developers of qualifying facilities with investor-owned utilities, public utility districts, and municipally-owned and operated utilities. With a hydro-based system, benefits associated with resource acquisition are determined in large part by how compatible the resource is with a utility's existing generation mix. Power purchase rates are negotiated and vary according to firm energy production, guarantees, ability to schedule maintenance or downtime, rights of refusal, power plant purchase options, project start date and length of contract; front-loading or levelization provisions; and the ability of the project to provide ''demonstrated'' capacity. Legislation was also enacted which allows PURPA to work effectively. Initial laws established ownership rights and provided irrigation districts, PUDs, and municipalities with expanded enabling powers. Financial processes were streamlined and, in some cases, simplified. Finally, laws were passed which are designed to ensure that development proceeds in an environmentally acceptable manner. In retrospect, PURPA has worked well within Washington. In the state of Washington, 20 small-scale hydroelectric projects with a combined generating capacity of 77 MW, 3 solid waste-to-energy facilities

  6. Power Towers for Utilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas ...

  7. Mandatory Utility Green Power Option

    Broader source: Energy.gov [DOE]

    Beginning January 1, 2002, each electric utility must inform its customers on a quarterly basis of the voluntary option to purchase green power. The details of each utility's program must be...

  8. Energy Department and Federal Efforts to Support Utility Power Restoration

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

    Efforts | Department of Energy Federal Efforts to Support Utility Power Restoration Efforts Energy Department and Federal Efforts to Support Utility Power Restoration Efforts October 31, 2012 - 5:19pm Addthis 58,000 workers are currently repairing power lines across the Mid-Atlantic in the aftermath of Hurricane Sandy. | Photo courtesy of the Energy Department 58,000 workers are currently repairing power lines across the Mid-Atlantic in the aftermath of Hurricane Sandy. | Photo courtesy of

  9. Concentrated Solar Power with Thermal Energy Storage Can Help Utilities'

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bottom Line, Study Shows - News Releases | NREL Concentrated Solar Power with Thermal Energy Storage Can Help Utilities' Bottom Line, Study Shows December 20, 2012 The storage capacity of concentrating solar power (CSP) can add significant value to a utility company's optimal mix of energy sources, a new report by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) suggests. The report found that CSP with a six-hour storage capacity can lower peak net loads when the

  10. 2014 Non-Utility Power Producers- Revenue

    U.S. Energy Information Administration (EIA) Indexed Site

    Revenue (Data from form EIA-861U) Entity State Ownership Residential Commercial Industrial Transportation Total Constellation NewEnergy, Inc AZ Non_Utility 0 296 0 0 296 Constellation NewEnergy, Inc AZ Non_Utility 0 256 0 0 256 Constellation Solar Arizona LLC AZ Non_Utility 0 774 0 0 774 Main Street Power AZ Non_Utility 0 533 0 0 533 Main Street Power AZ Non_Utility 0 265 0 0 265 Main Street Power AZ Non_Utility 0 165 0 0 165 Solar Star Arizona II LLC AZ Non_Utility 0 638 0 0 638 Solar Star

  11. Increasing the Capacity of Existing Power Lines

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

    of wind cooling on transmission lines concurrent with wind power generation, identifying additional capacity and line sag and clearance concerns to the ground, or nearby object. ...

  12. 2014 Non-Utility Power Producers- Customers

    U.S. Energy Information Administration (EIA) Indexed Site

    Customers (Data from form EIA-861U) Entity State Ownership Residential Commercial Industrial Transportation Total Constellation NewEnergy, Inc AZ Non_Utility 0 1 0 0 1 Constellation NewEnergy, Inc AZ Non_Utility 0 1 0 0 1 Constellation Solar Arizona LLC AZ Non_Utility 0 1 0 0 1 Main Street Power AZ Non_Utility 0 1 0 0 1 Main Street Power AZ Non_Utility 0 1 0 0 1 Main Street Power AZ Non_Utility 0 1 0 0 1 Solar Star Arizona II LLC AZ Non_Utility 0 1 0 0 1 Solar Star Arizona II LLC AZ Non_Utility

  13. Mandatory Utility Green Power Option

    Broader source: Energy.gov [DOE]

    In 2015, H.B. 2941 expanded this requirement to include a rate option with a specific renewable energy resource, such as solar photovoltaics, if the Public Utilities Commission finds there is...

  14. Secretary Chu Thanks Utility Staff and Line Workers For Their...

    Broader source: Energy.gov (indexed) [DOE]

    staff to the front lines to repair downed power lines and bring electricity back online. ... as they prepared to go out for the day to continue power restoration efforts in the state. ...

  15. 2014 Non-Utility Power Producers- Sales

    U.S. Energy Information Administration (EIA) Indexed Site

    Sales (Data from form EIA-861U) Entity State Ownership Residential Commercial Industrial Transportation Total Constellation NewEnergy, Inc AZ Non_Utility 0 2,888 0 0 2,888 Constellation NewEnergy, Inc AZ Non_Utility 0 3,343 0 0 3,343 Constellation Solar Arizona LLC AZ Non_Utility 0 7,397 0 0 7,397 Main Street Power AZ Non_Utility 0 8,017 0 0 8,017 Main Street Power AZ Non_Utility 0 2,195 0 0 2,195 Main Street Power AZ Non_Utility 0 2,654 0 0 2,654 Solar Star Arizona II LLC AZ Non_Utility 0 6,571

  16. Appendix S-51 - Transmission Line Approval - Public Utilities...

    Open Energy Info (EERE)

    from "http:en.openei.orgwindex.php?titleAppendixS-51-TransmissionLineApproval-PublicUtilitiesCommission&oldid800735" Feedback Contact needs updating Image needs...

  17. Ames Lab 101: Next Generation Power Lines

    ScienceCinema (OSTI)

    Russell, Alan

    2012-08-29

    Ames Laboratory scientist Alan Russell discusses the need to develop new power lines that are stronger and more conductive as a way to address the problem of the nation's aging and inadequate power grid.

  18. Renewable Energy Price-Stability Benefits in Utility Green Power...

    Office of Scientific and Technical Information (OSTI)

    Price-Stability Benefits in Utility Green Power Programs. 36 pp Citation Details In-Document Search Title: Renewable Energy Price-Stability Benefits in Utility Green Power ...

  19. factsheet - trees and power lines - July 2008

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Trees and power lines July 2008 This summer, BPA maintenance crews are inspecting and clearing high-growing vegetation from all 8,500- miles (15,000 circuit miles) of our...

  20. Fuel cell power system for utility vehicle

    SciTech Connect (OSTI)

    Graham, M.; Barbir, F.; Marken, F.; Nadal, M.

    1996-12-31

    Based on the experience of designing and building the Green Car, a fuel cell/battery hybrid vehicle, and Genesis, a hydrogen/oxygen fuel cell powered transporter, Energy Partners has developed a fuel cell power system for propulsion of an off-road utility vehicle. A 10 kW hydrogen/air fuel cell stack has been developed as a prototype for future mass production. The main features of this stack are discussed in this paper. Design considerations and selection criteria for the main components of the vehicular fuel cell system, such as traction motor, air compressor and compressor motor, hydrogen storage and delivery, water and heat management, power conditioning, and control and monitoring subsystem are discussed in detail.

  1. Minnkota Power Cooperative (17 Utilities) - PowerSavers Commercial...

    Broader source: Energy.gov (indexed) [DOE]

    Electric Cooperative Roseau Municipal Utilities Fosston Municipal Utilities City of Stephen Municipal Utilities Halstad Municipal Utilities Thief River Falls Municipal Utilities...

  2. Concurrent Wind Cooling in Power Transmission Lines

    SciTech Connect (OSTI)

    Jake P Gentle

    2012-08-01

    Idaho National Laboratory and the Idaho Power Company, with collaboration from Idaho State University, have been working on a project to monitor wind and other environmental data parameters along certain electrical transmission corridors. The combination of both real-time historical weather and environmental data is being used to model, validate, and recommend possibilities for dynamic operations of the transmission lines for power and energy carrying capacity. The planned results can also be used to influence decisions about proposed design criteria for or upgrades to certain sections of the transmission lines.

  3. Mandatory Utility Green Power Option | Open Energy Information

    Open Energy Info (EERE)

    Mandatory Utility Green Power Option New Mexico Utility Anaerobic Digestion Biomass Fuel Cells Geothermal Electric Hydroelectric energy Hydrogen Landfill Gas Photovoltaics...

  4. NREL Highlights Utility Green Power Leaders - News Releases ...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Highlights Utility Green Power Leaders Annual assessment shows more consumers making clean power choices May 3, 2010 The U.S. Department of Energy's (DOE) National Renewable Energy ...

  5. NREL Ranks Leading Utility Green Power Programs - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NREL Ranks Leading Utility Green Power Programs Pricing programs give consumers clean power choices April 3, 2007 The U.S. Department of Energy's (DOE) National Renewable Energy ...

  6. NREL Highlights Leading Utility Green Power Programs - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Utility Green Power Programs Pricing programs give consumers clean power choices April 22, 2008 The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) ...

  7. Utility-Scale Power Tower Solar Systems: Performance Acceptance...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Utility-Scale Power Tower Solar Systems: Performance Acceptance Test Guidelines David ... DE-AC36-08GO28308 Utility-Scale Power Tower Solar Systems: Performance Acceptance Test ...

  8. Sacramento Utility to Launch Concentrating Solar Power-Natural...

    Office of Environmental Management (EM)

    Sacramento Utility to Launch Concentrating Solar Power-Natural Gas Project Sacramento Utility to Launch Concentrating Solar Power-Natural Gas Project October 31, 2013 - 11:30am ...

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

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

    Department of Energy Low Cost High Concentration PV Systems for Utility Power Generation An overview of the Low Cost High Concentration PV Systems for Utility Power Generation project to transition Amonix's concentrating photovoltaic (PV) systems from low-volume to high-volume production. Low Cost High Concentration PV Systems for Utility Power Generation (972.55 KB) More Documents & Publications Solar America Initiative Low Cost High Concentration PV Systems for Utility Power

  10. Industrial Utility Webinar: Public Power Open Session

    SciTech Connect (OSTI)

    2010-02-10

    The Industrial Utility Webinars focus on providing utilities with information on how to develop sucessful energy efficeincy programs for industrial energy consumers.

  11. Industrial Utility Webinar: Combined Heat and Power

    SciTech Connect (OSTI)

    2010-06-09

    The Industrial Utility Webinars focus on providing utilities with information on how to develop sucessful energy efficeincy programs for industrial energy consumers.

  12. UTILITIES COLORADO WESTERN POWER ADMIN POC Cheryl Drake Telephone

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

    UTILITIES COLORADO WESTERN POWER ADMIN POC Cheryl Drake Telephone (720) 962-7154 Email drake@wapa.gov Electric Bulk Power Transmission and Control 221121 Electric Power Distribution 221122 GEORGIA SOUTHEASTERN POWER ADMIN POC Ann Craft Telephone (706) 213-3823 Email annc@sepa.doe.gov Electric Bulk Power Transmission and Control 221121 Electric Power Distribution 221122 OKLAHOMA SOUTHWESTERN POWER ADMIN POC Gary Bridges Telephone (918) 595-6671 Email gary.bridges@swpa.gov Electric Bulk Power

  13. Business risks to utilities as new nuclear power costs escalate

    SciTech Connect (OSTI)

    Severance, Craig A.

    2009-05-15

    A nuclear power megaproject carries with it severe business risks. Despite attempts to shift these risks to taxpayers and ratepayers, ultimately there are no guarantees for utility shareholders. Utility management needs to keep some core principles in mind. (author)

  14. Suggested Practices for Avian Protection on Power Lines | Open...

    Open Energy Info (EERE)

    with federal laws protecting and enhancing avian populations, and maintaining the reliability of electric power networds. Author Avian Power Line Interaction Committee...

  15. Project Profile: The Sacramento Municipal Utility District Consumnes Power

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

    Plant Solar Augmentation Project | Department of Energy The Sacramento Municipal Utility District Consumnes Power Plant Solar Augmentation Project Project Profile: The Sacramento Municipal Utility District Consumnes Power Plant Solar Augmentation Project SMUD Logo -- This project is inactive -- The Sacramento Municipal Utility District (SMUD), under the Concentrating Solar Power (CSP) Heat Integration for Baseload Renewable Energy Development (HIBRED) program, is demonstrating a hybrid CSP

  16. EIS-0465: Mid-Atlantic Power Pathway Transmission Line Project...

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

    5: Mid-Atlantic Power Pathway Transmission Line Project in Maryland and Delaware EIS-0465: Mid-Atlantic Power Pathway Transmission Line Project in Maryland and Delaware March 4, ...

  17. Idaho Public Utilities Commission Approves Neal Hot Springs Power...

    Open Energy Info (EERE)

    Geothermal Area Regions (0) Retrieved from "http:en.openei.orgwindex.php?titleIdahoPublicUtilitiesCommissionApprovesNealHotSpringsPowerPurchaseAgreement&oldid76143...

  18. Appendix S-50 - Power Purchase Agreement (PPA) - Public Utilities...

    Open Energy Info (EERE)

    "http:en.openei.orgwindex.php?titleAppendixS-50-PowerPurchaseAgreement(PPA)-PublicUtilitiesCommission&oldid800827" Feedback Contact needs updating Image needs...

  19. Public Power & Utility, Inc. (Pennsylvania) | Open Energy Information

    Open Energy Info (EERE)

    Data File for 2010 - File22010" Retrieved from "http:en.openei.orgwindex.php?titlePublicPower%26Utility,Inc.(Pennsylvania)&oldid882382" Feedback Contact needs...

  20. Combined Heat and Power with Your Local Utility

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation—given at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—covers combined heat and power (CHP) and its uses, configurations, considerations, and more.

  1. Mandatory Utility Green Power Option | Department of Energy

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

    those not rate-regulated by the Iowa Utilities Board (IUB), are required to offer green power options to their customers. These programs allow customers to make voluntary...

  2. Utilizing the Traction Drive Power Electronics System to Provide...

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

    Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing ... More Documents & Publications Current Source Inverters for HEVs and FCVs Converter ...

  3. Sacramento Utility to Launch Concentrating Solar Power-Natural...

    Broader source: Energy.gov (indexed) [DOE]

    available source of American energy, the Energy Department today announced a new concentrating solar power (CSP) project led by the Sacramento Municipal Utility District (SMUD). ...

  4. Mandatory Utility Green Power Option | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Digestion Program Info Sector Name State State Virginia Program Type Mandatory Utility Green Power Option Summary Virginia passed legislation (S.B. 1416) in April 2007 that...

  5. NREL Highlights Leading Utility Green Power Programs - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NREL Highlights Leading Utility Green Power Programs March 4, 2004 Golden, Colo. - The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) today released ...

  6. NREL Highlights Utility Green Power Leaders - News Releases ...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Wind is the primary source of electricity generated for green energy programs nationwide. "Despite the economic downturn, utility green power sales continued to expand nationally ...

  7. WAC - 468-34 - Utility Lines-Franchises and Permits | Open Energy...

    Open Energy Info (EERE)

    Lines-Franchises and PermitsLegal Abstract This section outlines the rules and procedures for granting franchises and permits for utility lines in the state. Published NA...

  8. Test report light duty utility arm power distribution system (PDS)

    SciTech Connect (OSTI)

    Clark, D.A.

    1996-03-04

    The Light Duty Utility Arm (LDUA) Power Distribution System has completed vendor and post-delivery acceptance testing. The Power Distribution System has been found to be acceptable and is now ready for integration with the overall LDUA system.

  9. NREL Highlights 2012 Utility Green Power Leaders - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Highlights 2012 Utility Green Power Leaders Top 10 programs support more than 4.2 million MWh of voluntary green power June 5, 2013 The Energy Department's National Renewable ...

  10. HIGH FREQUENCY POWER TRANSMISSION LINE FOR CYCLOTRONS AND THE LIKE

    DOE Patents [OSTI]

    Armstrong, W.J.

    1954-04-20

    High-frequency power transmission systems, particularly a stacked capacitance alternating power current transmission line wherein maximum utilization of the effective conductios skin of the line conductors is achieved while enabling a low impedance to be obtained are reported. The transmission line consists of a number of flat metal strips with interleaved dielectric strips. The metal dielectric strips are coiled spirally with the axis of the spiral extending along the length of the strips, and the alternating metal strips at the output end have outwardly extending aligned lugs which are directly strapped together and connected to the respective terminals on the load. At the input end of the transmission line, similarly, the alternate metal strips are directly strapped together and connected to an altereating current source. With the arrangement described each metal strip conducts on both sides, so that the metal strips are designed to have a thickness corresponding to twice the depth of the "skin effect" conducting lamina of each conductor at the source frequency.

  11. Using Weather Data to Improve Capacity of Existing Power Lines | Department

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

    of Energy Using Weather Data to Improve Capacity of Existing Power Lines Using Weather Data to Improve Capacity of Existing Power Lines May 11, 2016 - 6:01pm Addthis When it comes to increasing the efficiency of 160,000 miles of U.S. high-voltage transmission lines, the answer might be blowing in the wind. In fact, when the wind blows just the right way on a high-voltage line, the line cools enough to safely increase the amount of current between 10% and 40%. Photo of two utility poles on

  12. Powering New Markets: Utility-scale Photovoltaic Solar | Department of

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

    Energy Powering New Markets: Utility-scale Photovoltaic Solar Powering New Markets: Utility-scale Photovoltaic Solar Powering New Markets: Utility-scale Photovoltaic Solar DOE_LPO_Utility-Scale_PV_Solar_Markets_February2015.pdf (464.52 KB) More Documents & Publications Financing Innovation to Address Global Climate Change LPO_BROCHURE_CSP DOE-LPO_Email-Update_014_Final_2-Mar-2016 LPO Loan Portfolio Financial Performance Report As of September 2014, more than $810 million of interest has

  13. Power generating system and method utilizing hydropyrolysis

    DOE Patents [OSTI]

    Tolman, R.

    1986-12-30

    A vapor transmission cycle is described which burns a slurry of coal and water with some of the air from the gas turbine compressor, cools and cleans the resulting low-Btu fuel gas, burns the clean fuel gas with the remaining air from the compressor, and extracts the available energy in the gas turbine. The cycle lends itself to combined-cycle cogeneration for the production of steam, absorption cooling, and electric power.

  14. Power Line Plan of Development Outline | Open Energy Information

    Open Energy Info (EERE)

    Line Plan of Development Outline Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: Power Line Plan of Development OutlineLegal...

  15. Electrolysis: Information and Opportunities for Electric Power Utilities

    SciTech Connect (OSTI)

    Kroposki, B.; Levene, J.; Harrison, K.; Sen, P.K.; Novachek, F.

    2006-09-01

    Recent advancements in hydrogen technologies and renewable energy applications show promise for economical near- to mid-term conversion to a hydrogen-based economy. As the use of hydrogen for the electric utility and transportation sectors of the U.S. economy unfolds, electric power utilities need to understand the potential benefits and impacts. This report provides a historical perspective of hydrogen, discusses the process of electrolysis for hydrogen production (especially from solar and wind technologies), and describes the opportunities for electric power utilities.

  16. Radio frequency communication system utilizing radiating transmission lines

    DOE Patents [OSTI]

    Struven, Warren C.

    1984-01-01

    A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.

  17. Computing Criticality of Lines in Power Systems

    SciTech Connect (OSTI)

    Pinar, Ali; Reichert, Adam; Lesieutre, Bernard

    2006-10-13

    We propose a computationally efficient method based onnonlinear optimization to identify critical lines, failure of which cancause severe blackouts. Our method computes criticality measure for alllines at a time, as opposed to detecting a single vulnerability,providing a global view of the system. This information on criticality oflines can be used to identify multiple contingencies by selectivelyexploring multiple combinations of broken lines. The effectiveness of ourmethod is demonstrated on the IEEE 30 and 118 bus systems, where we canvery quickly detect the most critical lines in the system and identifysevere multiple contingencies.

  18. Utility-Scale Solar Power Converter: Agile Direct Grid Connect Medium Voltage 4.7-13.8 kV Power Converter for PV Applications Utilizing Wide Band Gap Devices

    SciTech Connect (OSTI)

    2012-01-25

    Solar ADEPT Project: Satcon is developing a compact, lightweight power conversion device that is capable of taking utility-scale solar power and outputting it directly into the electric utility grid at distribution voltage levels—eliminating the need for large transformers. Transformers “step up” the voltage of the power that is generated by a solar power system so it can be efficiently transported through transmission lines and eventually “stepped down” to usable voltages before it enters homes and businesses. Power companies step up the voltage because less electricity is lost along transmission lines when the voltage is high and current is low. Satcon’s new power conversion devices will eliminate these heavy transformers and connect a utility-scale solar power system directly to the grid. Satcon’s modular devices are designed to ensure reliability—if one device fails it can be bypassed and the system can continue to run.

  19. Increasing the Capacity of Existing Power Lines

    SciTech Connect (OSTI)

    2013-04-01

    The capacity of the grid has been largely unchanged for decades and needs to expand to accommodate new power plants and renewable energy projects.

  20. VERNIER CHRONOTRON UTILIZING AT LEAST TWO SHORTED DELAY LINES

    DOE Patents [OSTI]

    Rufer, R.P.

    1964-02-25

    An improved vernier chronotron featuring pulse-forming circuits of a ringing'' or back and forth'' oscillatory type is described. A delay line shorted at both ends together with transistor circuitry to introduce a pulse into that line and also to provide reinforcement of the pulse as it oscillates between the pulse-reflective extremities is provided. A transistorized coincidence circuit is also provided. Enhanced measurement of time intervals in the nanosecond range is afforded. (AEC)

  1. Power Line Integrity Monitor and Repeater

    Energy Science and Technology Software Center (OSTI)

    2005-09-30

    The Idaho National Laboratory (INL) has developed a power system integrity monitor and repeater that provide real time status of the integrity of the physical structure of power poles and transmission towers. It may be applied to other structures, such as pipelines or cell towers, which have multiple segments that can cover hundreds of miles. Sensors and on-board processing provide indication of tampering or impending damage to the structure with information provided to the centralmore » operations center or supervisory control and data acquisition (SCADA) for mitigative actions. This software runs on a series of small, inexpensive, low power electronic sensor platforms that are mounted on each tower of an electric power transmission or distribution system for the purpose of communicating system integrity to a central location. The software allows each platform to: 1) interface with sensors that monitor tower integrity, 2) record and analyze events, 3) communicate sensor information to other sensor platforms located on adjacent towers or to a central monitoring location, and 4) derive, conserve, and store platform power from the transmission of electric power.« less

  2. Homeostatic control: the utility/customer marketplace for electric power

    SciTech Connect (OSTI)

    Schweppe, F.C.; Tabors, R.D.; Kirtley, J.L.

    1981-09-01

    A load management system is proposed in which the electric utility customer controls his on-site power demand to coincide with the lowest possible cost of power generation. Called Homeostatic Control, this method is founded on feedback between the customer and the utility and on customer independence. The utility has no control beyond the customer's meter. Computers located at the customer's site are continuously fed data on weather conditions, utility generating costs, and demand requirements for space conditioning, lighting, and appliances. The customer then directs the computer to schedule and control the power allotted for these functions. On-site generation by the customer can be incorporated in the system. It is argued that homeostatic control is technically feasible, that the level of control equipment sophistication can be adapted to the benefits received by the customer, that such a system would encourage the use of customer-site energy storage and energy conservation equipment, and that it represents a realistic method for allowing the customer to decide how he will use electric power during an era of increasing costs for power generation. (LCL)

  3. REDUCING POWER PRODUCTION COSTS BY UTILIZING PETROLEUM COKE

    SciTech Connect (OSTI)

    Kevin C. Galbreath; Donald L. Toman; Christopher J. Zygarlicke

    1999-09-01

    Petroleum coke, a byproduct of the petroleum-refining process, is an attractive primary or supplemental fuel for power production primarily because of a progressive and predictable increase in the production volumes of petroleum coke (1, 2). Petroleum coke is most commonly blended with coal in proportions suitable to meet sulfur emission compliance. Petroleum coke is generally less reactive than coal; therefore, the cofiring of petroleum coke with coal typically improves ignition, flame stability, and carbon loss relative to the combustion of petroleum coke alone. Although petroleum coke is a desirable fuel for producing relatively inexpensive electrical power, concerns about the effects of petroleum coke blending on combustion and pollution control processes exist in the coal-fired utility industry (3). The Energy & Environmental Research Center (EERC) completed a 2-year technical assessment of petroleum coke as a supplemental fuel. A survey questionnaire was sent to seven electric utility companies that are currently cofiring coal and petroleum coke in an effort to solicit specific suggestions on research needs and fuel selections. An example of the letter and survey questionnaire is presented in Appendix A. Interest was expressed by most utilities in evaluating the effects of petroleum coke blending on grindability, combustion reactivity, fouling, slagging, and fly ash emissions control. Unexpectedly, concern over corrosion was not expressed by the utilities contacted. Although all seven utilities responded to the question, only two utilities, Northern States Power Company (NSP) and Ameren, sent fuels to the EERC for evaluation. Both utilities sent subbituminous coals from the Power River Basin and petroleum shot coke samples. Petroleum shot coke is produced unintentionally during operational upsets in the petroleum refining process. This report evaluates the effects of petroleum shot coke blending on grindability, fuel reactivity, fouling/slagging, and

  4. Method and apparatus for line power monitoring for uninterruptible power supplies

    SciTech Connect (OSTI)

    Baxter, R.V. Jr.; Stich, F.A.

    1993-07-20

    AC line waveform monitoring apparatus is described for detecting AC line power faults and providing a fault signal for control of an uninterruptible power supply comprising: (a) means for sampling an AC line power signal at times synchronized with the cycle of the AC line waveform; (b) means for producing a reference waveform at selected sample times during the period of the AC line signal given previous reference waveform values and a prior cycle wherein a reference waveform value at each sample time comprises a selectively weighted average of value at that sample time in the prior cycle of the AC line signal and the previous reference waveform value at that sample time; (c) an uninterruptible power supply including an auxiliary power supply battery, the uninterruptible power supply receiving the AC line power and normally providing the AC line power to a load and responsive to a fault signal to switch to provide power to the load from the battery; (d) means for comparing the AC line signal waveform with the reference waveform at corresponding times in the reference waveform and the signal waveform and providing the fault signal to the uninterruptible power supply so that it provides power to the load from the battery when a selected difference condition is exceeded.

  5. Utilization of Estonian oil shale at power plants

    SciTech Connect (OSTI)

    Ots, A. [Tallin Technical Univ. (Estonia). Thermal Engineering Department

    1996-12-31

    Estonian oil shale belongs to the carbonate class and is characterized as a solid fuel with very high mineral matter content (60--70% in dry mass), moderate moisture content (9--12%) and low heating value (LHV 8--10 MJ/kg). Estonian oil shale deposits lie in layers interlacing mineral stratas. The main constituent in mineral stratas is limestone. Organic matter is joined with sandy-clay minerals in shale layers. Estonian oil shale at power plants with total capacity of 3060 MW{sub e} is utilized in pulverized form. Oil shale utilization as fuel, with high calcium oxide and alkali metal content, at power plants is connected with intensive fouling, high temperature corrosion and wear of steam boiler`s heat transfer surfaces. Utilization of Estonian oil shale is also associated with ash residue use in national economy and as absorbent for flue gas desulfurization system.

  6. Living and Working Safely Around High-Voltage Power Lines.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    2001-06-01

    High-voltage transmission lines can be just as safe as the electrical wiring in the homes--or just as dangerous. The crucial factor is ourselves: they must learn to behave safely around them. This booklet is a basic safety guide for those who live and work around power lines. It deals primarily with nuisance shocks due to induced voltages, and with potential electric shock hazards from contact with high-voltage lines. References on possible long-term biological effects of transmission lines are shown. In preparing this booklet, the Bonneville Power Administration has drawn on more than 50 years of experience with high-voltage transmission. BPA operates one of the world`s largest networks of long-distance, high-voltage lines. This system has more than 400 substations and about 15,000 miles of transmission lines, almost 4,400 miles of which are operated at 500,000 volts.

  7. Uranium Neutron Coincidence Collar Model Utilizing Boron-10 Lined Tubes

    SciTech Connect (OSTI)

    Rogers, Jeremy L.; Ely, James H.; Kouzes, Richard T.; Lintereur, Azaree T.; Siciliano, Edward R.

    2012-09-18

    The Department of Energy Office of Nuclear Safeguards and Security (NA-241) is supporting the project Coincidence Counting With Boron-Based Alternative Neutron Detection Technology at Pacific Northwest National Laboratory (PNNL) for the development of a 3He proportional counter alternative neutron coincidence counter. The goal of this project is to design, build and demonstrate a system based upon 10B-lined proportional tubes in a configuration typical for 3He-based coincidence counter applications. This report, providing results for model development of Alternative Boron-Based Uranium Neutron Coincidence Collar (ABUNCL) designs, is a deliverable under Task 2 of the project.

  8. Utilities Power Change: Engaging Commercial Customers in Workplace Charging

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Utilities Power Change: Engaging Commercial Customers in Workplace Charging S. Lommele, National Renewable Energy Laboratory W. Dafoe, National Renewable Energy Laboratory June 2016 DRAFT REPORT Workplace ii NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for

  9. The interconnection of photovoltaic power systems with the utility grid: An overview for utility engineers

    SciTech Connect (OSTI)

    Wills, R.H.

    1994-06-01

    Utility-interactive (UI) photovoltaic power systems mounted on residences and commercial buildings are likely to become a small, but important source of electric generation in the next century. This is a new concept in utility power production--a change from large-scale central generation to small-scale dispersed generation. As such, it requires a re-examination of many existing standards and practices to enable the technology to develop and emerge into the marketplace. Much work has been done over the last 20 years to identify and solve the potential problems associated with dispersed power generation systems. This report gives an overview of these issues and also provides a guide to applicable codes, standards and other related documents. The main conclusion that can be drawn from this work is that there are no major technical barriers to the implementation of dispersed PV generating systems. While more technical research is needed in some specific areas, the remaining barriers are fundamentally price and policy.

  10. Real Power Regulation for the Utility Power Grid via Responsive Loads -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Innovation Portal Electricity Transmission Electricity Transmission Building Energy Efficiency Building Energy Efficiency Find More Like This Return to Search Real Power Regulation for the Utility Power Grid via Responsive Loads Oak Ridge National Laboratory Contact ORNL About This Technology Publications: PDF Document Publication 11-G00237_ID1491 (2).pdf (956 KB) Technology Marketing SummaryA new methodology for dynamically managing an electrical system was invented by researchers at

  11. Central Wind Power Forecasting Programs in North America by Regional Transmission Organizations and Electric Utilities

    SciTech Connect (OSTI)

    Porter, K.; Rogers, J.

    2009-12-01

    The report addresses the implementation of central wind power forecasting by electric utilities and regional transmission organizations in North America.

  12. Bias-field controlled phasing and power combination of gyromagnetic nonlinear transmission lines

    SciTech Connect (OSTI)

    Reale, D. V. Bragg, J.-W. B.; Gonsalves, N. R.; Johnson, J. M.; Neuber, A. A.; Dickens, J. C.; Mankowski, J. J.

    2014-05-15

    Gyromagnetic Nonlinear Transmission Lines (NLTLs) generate microwaves through the damped gyromagnetic precession of the magnetic moments in ferrimagnetic material, and are thus utilized as compact, solid-state, frequency agile, high power microwave (HPM) sources. The output frequency of a NLTL can be adjusted by control of the externally applied bias field and incident voltage pulse without physical alteration to the structure of the device. This property provides a frequency tuning capability not seen in many conventional e-beam based HPM sources. The NLTLs developed and tested are mesoband sources capable of generating MW power levels in the L, S, and C bands of the microwave spectrum. For an individual NLTL the output power at a given frequency is determined by several factors including the intrinsic properties of the ferrimagnetic material and the transmission line structure. Hence, if higher power levels are to be achieved, it is necessary to combine the outputs of multiple NLTLs. This can be accomplished in free space using antennas or in a transmission line via a power combiner. Using a bias-field controlled delay, a transient, high voltage, coaxial, three port, power combiner was designed and tested. Experimental results are compared with the results of a transient COMSOL simulation to evaluate combiner performance.

  13. Early environmental planning: A process for power line corridor selection

    SciTech Connect (OSTI)

    Haagenstad, T.; Bare, C.M.

    1998-12-01

    Los Alamos National Laboratory (LANL) conducted an environmental planning study in the fall of 1997 to help determine the best alternative for upgrading the Laboratory`s electrical power system. Alternatives considered included an on-site power generation facility and two corridors for a 10-mile-long 115-kV power line. This planning process was conducted prior to the formal National Environmental Policy Act (NEPA) review. The goals were to help select the best proposed action, to recommend modifications and mitigation measures for each alternative for a more environmentally sound project, and to avoid potential delays once the formal Department of Energy review process began. Significant constraints existed from a planning perspective, including operational issues such as existing outdoor high explosives testing areas, as well as environmental issues including threatened and endangered species habitats, multiple archeological sites, contaminated areas, and aesthetics. The study had to be completed within 45 days to meet project schedule needs. The process resulted in a number of important recommendations. While the construction and operation of the on-site power generation facility could have minimal environmental impacts, the need for a new air quality permit would create severe cost and schedule constraints for the project. From an environmental perspective, construction and operation of a power line within either corridor was concluded to be a viable alternative. However, impacts with either corridor would have to be reduced through specific recommended alignment modifications and mitigation measures.

  14. Impacts of Western Area Power Administration`s power marketing alternatives on electric utility systems

    SciTech Connect (OSTI)

    Veselka, T.D.; Portante, E.C.; Koritarov, V.

    1995-03-01

    This technical memorandum estimates the effects of alternative contractual commitments that may be initiated by the Western Area Power Administration`s Salt Lake City Area Office. It also studies hydropower operational restrictions at the Salt Lake City Area Integrated Projects in combination with these alternatives. Power marketing and hydropower operational effects are estimated in support of Western`s Electric Power Marketing Environmental Impact Statement (EIS). Electricity production and capacity expansion for utility systems that will be directly affected by alternatives specified in the EIS are simulated. Cost estimates are presented by utility type and for various activities such as capacity expansion, generation, long-term firm purchases and sales, fixed operation and maintenance expenses, and spot market activities. Operational changes at hydropower facilities are also investigated.

  15. Evaluation of line focus solar central power systems. Volume II. Systems evaluation

    SciTech Connect (OSTI)

    Not Available

    1980-03-15

    An evaluation was completed to ascertain the applicability of line focus technologies to electrical power applications and to compare their performance and cost potential with point focus central receiver power systems. It was concluded that although the high temperature line focus (SRI) and fixed mirror line focus (GA) concepts duplicate the heat source characteristics and power conversion technology of the central receiver concepts these configurations do not offer a sufficient improvement in cost to warrant full scale development. The systems are, however, less complex than their point focus counterpart and should the central receiver system development falter they provide reasonable technology alternatives. The parabolic trough concept (BDM) was found to provide a low temperature technology alternative to the central receiver concept with promising performance and cost potential. Its continued development is recommended, with special emphasis on lower temperature (< 700/sup 0/F) applications. Finally, a variety of new promising line focus power system configurations were identified for a range of utility and industrial applications and recommendations were made on their implementation. This volume contains the detailed report. (WHK)

  16. INTEGRATED POWER GENERATION SYSTEMS FOR COAL MINE WASTE METHANE UTILIZATION

    SciTech Connect (OSTI)

    Peet M. Soot; Dale R. Jesse; Michael E. Smith

    2005-08-01

    An integrated system to utilize the waste coal mine methane (CMM) at the Federal No. 2 Coal Mine in West Virginia was designed and built. The system includes power generation, using internal combustion engines, along with gas processing equipment to upgrade sub-quality waste methane to pipeline quality standards. The power generation has a nominal capacity of 1,200 kw and the gas processing system can treat about 1 million cubic feet per day (1 MMCFD) of gas. The gas processing is based on the Northwest Fuel Development, Inc. (NW Fuel) proprietary continuous pressure swing adsorption (CPSA) process that can remove nitrogen from CMM streams. The two major components of the integrated system are synergistic. The byproduct gas stream from the gas processing equipment can be used as fuel for the power generating equipment. In return, the power generating equipment provides the nominal power requirements of the gas processing equipment. This Phase III effort followed Phase I, which was comprised of a feasibility study for the project, and Phase II, where the final design for the commercial-scale demonstration was completed. The fact that NW Fuel is desirous of continuing to operate the equipment on a commercial basis provides the validation for having advanced the project through all of these phases. The limitation experienced by the project during Phase III was that the CMM available to operate the CPSA system on a commercial basis was not of sufficiently high quality. NW Fuel's CPSA process is limited in its applicability, requiring a relatively high quality of gas as the feed to the process. The CPSA process was demonstrated during Phase III for a limited time, during which the processing capabilities met the expected results, but the process was never capable of providing pipeline quality gas from the available low quality CMM. The NW Fuel CPSA process is a low-cost ''polishing unit'' capable of removing a few percent nitrogen. It was never intended to process CMM

  17. Benchmarking for electric utilities, tree trimming benchmarking, service line installation to single family residence, and distribution revenue meter testing and repair

    SciTech Connect (OSTI)

    Harder, J.

    1994-12-31

    An American Public Power Association (APPA) task force study on benchmarking for electric utilities is presented. Benchmark studies were made of three activities: (1) Tree trimming; (2) Service line installation to single family residence; (3) Distribution revenue meter testing and repair criteria. The results of the study areas are summarized for 15 utilities. The methodologies used for data collection and analysis are discussed. 28 figs., 9 tabs.

  18. Industrial Utility Webinar: Public Power Financial Incentive Programs

    SciTech Connect (OSTI)

    2010-05-14

    The Industrial Utility Webinars focus on providing utilities with information on how to develop sucessful energy efficeincy programs for industrial energy consumers.

  19. INVESTIGATION OF A DYNAMIC POWER LINE RATING CONCEPT FOR IMPROVED WIND ENERGY INTEGRATION OVER COMPLEX TERRAIN

    SciTech Connect (OSTI)

    Jake P. Gentle; Kurt S Myers; Tyler B Phillips; Inanc Senocak; Phil Anderson

    2014-08-01

    Dynamic Line Rating (DLR) is a smart grid technology that allows the rating of power line to be based on real-time conductor temperature dependent on local weather conditions. In current practice overhead power lines are generally given a conservative rating based on worst case weather conditions. Using historical weather data collected over a test bed area, we demonstrate there is often additional transmission capacity not being utilized with the current static rating practice. We investigate a new dynamic line rating methodology using computational fluid dynamics (CFD) to determine wind conditions along transmission lines at dense intervals. Simulated results are used to determine conductor temperature by calculating the transient thermal response of the conductor under variable environmental conditions. In calculating the conductor temperature, we use both a calculation with steady-state assumption and a transient calculation. Under low wind conditions, steady-state assumption predicts higher conductor temperatures that could lead to curtailments, whereas transient calculations produce conductor temperatures that are significantly lower, implying the availability of additional transmission capacity.

  20. Reducing power production costs by utilizing petroleum coke. Annual report

    SciTech Connect (OSTI)

    Galbreath, K.C.

    1998-07-01

    A Powder River Basin subbituminous coal from the North Antelope mine and a petroleum shot coke were received from Northern States Power Company (NSP) for testing the effects of parent fuel properties on coal-coke blend grindability and evaluating the utility of petroleum coke blending as a strategy for improving electrostatic precipitator (ESP) particulate collection efficiency. Petroleum cokes are generally harder than coals, as indicated by Hardgrove grindability tests. Therefore, the weaker coal component may concentrate in the finer size fractions during the pulverizing of coal-coke blends. The possibility of a coal-coke size fractionation effect is being investigated because it may adversely affect combustion performance, it may enhance ESP particulate collection efficiency. Petroleum cokes contain much higher concentrations of V relative to coals. Consequently, coke blending can significantly increase the V content of fly ash resulting from coal-coke combustion. Pentavalent vanadium oxide (V{sub 2}O{sub 5}) is a known catalyst for transforming gaseous sulfur dioxide (SO{sub 2}[g]) to gaseous sulfur trioxide (SO{sub 3}[g]). The presence of SO{sub 3}(g) strongly affects fly ash resistivity and, thus, ESP performance.

  1. REDUCING POWER PRODUCTION COSTS BY UTILIZING PETROLEUM COKE

    SciTech Connect (OSTI)

    1998-09-01

    A Powder River Basin subbituminous coal from the North Antelope mine and a petroleum shot coke were received from Northern States Power Company (NSP) for testing the effects of parent fuel properties on coal-coke blend grindability and evaluating the utility of petroleum coke blending as a strategy for improving electrostatic precipitator (ESP) particulate collection efficiency. Petroleum cokes are generally harder than coals, as indicated by Hardgrove grindability tests. Therefore, the weaker coal component may concentrate in the finer size fractions during the pulverizing of coal-coke blends. The possibility of a coal-coke size fractionation effect is being investigated because it may adversely affect combustion performance. Although the blending of petroleum coke with coal may adversely affect combustion performance, it may enhance ESP particulate collection efficiency. Petroleum cokes contain much higher concentrations of V relative to coals. Consequently, coke blending can significantly increase the V content of fly ash resulting from coal-coke combustion. Pentavalent vanadium oxide (V{sub 2}O{sub 5}) is a known catalyst for transforming gaseous sulfur dioxide (SO{sub 2}[g]) to gaseous sulfur trioxide (SO{sub 3}[g]). The presence of SO{sub 3}(g) strongly affects fly ash resistivity and, thus, ESP performance.

  2. On-line diagnostic system for power generators

    SciTech Connect (OSTI)

    Skormin, V.A.; Goodenough, G.S.; Huber, R.K.

    1996-12-31

    A novel approach to diagnostics of a power generator is developed. It utilizes readily available data acquired by the existing computer-based monitoring/control system. Diagnostic procedures detect various trends in the generator data and interpret these trends in the generator data and interpret these trends as changes in the generator performance caused by incipient failures. Results of trend analyses, subjected to statistical validation, facilitate failure prediction and identification thus providing the justification for service when needed. The procedures are incorporated in a diagnostic system implemented in a PC interfaced with the existing VAX-based process monitoring and control system. The diagnostic system provides graphical display of the diagnostic messages.

  3. Inventory of Electric Utility Power Plants in the United States

    Reports and Publications (EIA)

    2002-01-01

    Final issue of this report. Provides detailed statistics on existing generating units operated by electric utilities as of December 31, 2000, and certain summary statistics about new generators planned for operation by electric utilities during the next 5 years.

  4. NREL Highlights Leading Utility Green Power Programs - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Green Power Programs Pricing Programs give Consumers Clean Power Choices February 21, 2003 Golden, CO. - The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory ...

  5. NREL Highlights Leading Utility Green Power Programs - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Green Power Programs Pricing programs give consumers clean power choices March 15, 2006 Golden, Colo. - The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory ...

  6. Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine...

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

    Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Report details the six-month evaluation...

  7. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results

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

    Update | Department of Energy Hydrogen-Powered Transit Buses: Evaluation Results Update SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update This report provides an update on the evaluation results for hydrogen and CNG-fueled buses opertating at SunLine Transit Agency in California. 42080.pdf (1.02 MB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Hydrogen-Powered

  8. Sacramento Utility to Launch Concentrating Solar Power-Natural Gas Project

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

    | Department of Energy Sacramento Utility to Launch Concentrating Solar Power-Natural Gas Project Sacramento Utility to Launch Concentrating Solar Power-Natural Gas Project October 31, 2013 - 4:58pm Addthis As part of the Obama Administration's all-of-the-above strategy to deploy every available source of American energy, the Energy Department today announced a new concentrating solar power (CSP) project led by the Sacramento Municipal Utility District (SMUD). The project will integrate

  9. NREL Highlights 2010 Utility Green Power Leaders - News Releases...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    utility programs exceeded 6 million megawatt-hours (MWh) in 2010. Wind energy now represents more than three-fourths of electricity generated for green energy programs nationwide. ...

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

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

    Efficiency Concentrating Photovoltaic Power System,Reaching Grid Parity ... for Residential and Commercial Photovoltaic Energy Generation,A Value Chain ...

  11. Owners of nuclear power plants: Percentage ownership of commercial nuclear power plants by utility companies

    SciTech Connect (OSTI)

    Wood, R.S.

    1987-08-01

    The following list indicates percentage ownership of commercial nuclear power plants by utility companies as of June 1, 1987. The list includes all plants licensed to operate, under construction, docked for NRC safety and environmental reviews, or under NRC antitrust review. It does not include those plants announced but not yet under review or those plants formally canceled. In many cases, ownership may be in the process of changing as a result of altered financial conditions, changed power needs, and other reasons. However, this list reflects only those ownership percentages of which the NRC has been formally notified. Part I lists plants alphabetically with their associated applicants/licensees and percentage ownership. Part II lists applicants/licensees alphabetically with their associated plants and percentage ownership. Part I also indicates which plants have received operating licenses (OL's). Footnotes for both parts appear at the end of this document.

  12. EIS-0256: Sierra Pacific Power Company Alturas Transmission Line Project (adopted from BLM)

    Broader source: Energy.gov [DOE]

    This EIS evaluates the environmental setting and consequences of the construction and operation of the proposal Alturas Transmission Line Project. Sierra Pacific Power Company (SPPCO) has proposed this electric power transmission line to improve the existing operational capacity and reliability of its power transmission system and provide for anticipated growth in demand for electric power.

  13. Public Power & Utility, Inc. (Massachusetts) | Open Energy Information

    Open Energy Info (EERE)

    Inc. Place: Massachusetts Phone Number: 1-888-354-4415 Website: www.ppandu.comen Twitter: @PPandUtility Outage Hotline: 1-888-354-4415 References: EIA Form EIA-861 Final Data...

  14. SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary

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

    Evaluation Results | Department of Energy Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency. 41001.pdf (1.38 MB) More Documents & Publications SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results

  15. "2014 Non-Utility Power Producers- Customers"

    U.S. Energy Information Administration (EIA) Indexed Site

    Customers" "(Data from form EIA-861U)" ,,,"Number of Customers" "Entity","State","Ownership","Residential","Commercial","Industrial","Transportation","Total" "Constellation NewEnergy, Inc","AZ","Non_Utility",0,1,0,0,1 "Constellation NewEnergy, Inc","AZ","Non_Utility",0,1,0,0,1 "Constellation Solar Arizona

  16. "2014 Non-Utility Power Producers- Revenue"

    U.S. Energy Information Administration (EIA) Indexed Site

    Revenue" "(Data from form EIA-861U)" ,,,"Revenue (thousand dollars)" "Entity","State","Ownership","Residential","Commercial","Industrial","Transportation","Total" "Constellation NewEnergy, Inc","AZ","Non_Utility",0,296,0,0,296 "Constellation NewEnergy, Inc","AZ","Non_Utility",0,256,0,0,256 "Constellation Solar Arizona

  17. "2014 Non-Utility Power Producers- Sales"

    U.S. Energy Information Administration (EIA) Indexed Site

    Sales" "(Data from form EIA-861U)" ,,,"Sales (Megawatthours)" "Entity","State","Ownership","Residential","Commercial","Industrial","Transportation","Total" "Constellation NewEnergy, Inc","AZ","Non_Utility",0,2888,0,0,2888 "Constellation NewEnergy, Inc","AZ","Non_Utility",0,3343,0,0,3343 "Constellation Solar Arizona

  18. The net utility revenue impact of small power producing facilities operating under spot pricing policies

    SciTech Connect (OSTI)

    MacGregor, P.R.

    1989-01-01

    The National Energy Act, in general, and Section 210 of the Public Utilities Regulatory Policies Act (PURPA) of 1978 in particular, have dramatically stimulated increasing levels of independent non-utility power generation. As these levels of independent non-utility power generation increase, the electric utility is subjected to new and significant operational and financial impacts. One important concern is the net revenue impact on the utility which is the focus of the research discussed in this thesis and which is inextricably intertwined with the operational functions of the utility system. In general, non-utility generation, and specifically, cogeneration, impact utility revenues by affecting the structure and magnitude of the system load, the scheduling of utility generation, and the reliability of the composite system. These effects are examined by developing a comprehensive model non-utility independent power producing facilities, referenced as Small Power Producing Facilities, a cash-flow-based corporate model of the electric utility, a thermal plant based generation scheduling algorithm, and a system reliability evaluation. All of these components are integrated into an iterative closed loop solution algorithm to both assess and enhance the net revenue. In this solution algorithm, the spot pricing policy of the utility is the principal control mechanism in the process and the system reliability is the primary procedural constraint. A key issue in reducing the negative financial impact of non-utility generation is the possibility of shutting down utility generation units given sufficient magnitudes of non-utility generation in the system. A case study simulating the financial and system operations of the Georgia Power Company with representative cogeneration capacity and individual plant characteristics is analyzed in order to demonstrate the solution process.

  19. Utility-Scale Power Router: Dynamic Control of Grid Assets Using Direct AC Converter Cells

    SciTech Connect (OSTI)

    2010-09-01

    ADEPT Project: Georgia Tech is developing a cost-effective, utility-scale power router that uses an enhanced transformer to more efficiently direct power on the grid. Existing power routing technologies are too expensive for widespread use, but the ability to route grid power to match real-time demand and power outages would significantly reduce energy costs for utilities, municipalities, and consumers. Georgia Tech is adding a power converter to an existing grid transformer to better control power flows at about 1/10th the cost of existing power routing solutions. Transformers convert the high-voltage electricity that is transmitted through the grid into the low-voltage electricity that is used by homes and businesses. The added converter uses fewer steps to convert some types of power and eliminates unnecessary power storage, among other improvements. The enhanced transformer is more efficient, and it would still work even if the converter fails, ensuring grid reliability.

  20. Mandatory Utility Green Power Option | Department of Energy

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

    that include, but are not limited to, wind, solar, geothermal and biomass. NorthWestern Energy implemented a green-power program ("E+ Green") in June 2003. Source http:...

  1. Energy Department and Federal Efforts to Support Utility Power...

    Office of Environmental Management (EM)

    ... For example, the U.S. Army Corps of Engineers deployed water pumps to a flooded Con Edison power substation in New York to help clear out the water - a necessary step before the ...

  2. Low Cost High Concentration PV Systems for Utility Power Generation Amonix,

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

    Inc. | Department of Energy Amonix, Inc. Low Cost High Concentration PV Systems for Utility Power Generation Amonix, Inc. A series of brief fact sheet on various topics including:Low Cost High Concentration PV Systems for Utility Power Generation,High Efficiency Concentrating Photovoltaic Power System,Reaching Grid Parity Using BP Solar Crystalline Silicon Technology, Fully Integrated Building Science Solutions for Residential and Commercial Photovoltaic Energy Generation,A Value Chain

  3. Development of an Advanced Combined Heat and Power (CHP) System Utilizing

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

    Off-Gas from Coke Calcination - Fact Sheet, 2014 | Department of Energy an Advanced Combined Heat and Power (CHP) System Utilizing Off-Gas from Coke Calcination - Fact Sheet, 2014 Development of an Advanced Combined Heat and Power (CHP) System Utilizing Off-Gas from Coke Calcination - Fact Sheet, 2014 The Gas Technology Institute-in collaboration with Superior Graphite Company and SCHMIDTSCHE SCHACK, a division of ARVOS Group, Wexford business unit (formerly Alstom Power Energy

  4. TYPE A VERIFICATION FOR THE HIGH FLUX BEAM REACTOR UNDERGROUND UTILITIES REMOVAL PHASE 2 DF WASTE LINE REMOVAL, BNL

    SciTech Connect (OSTI)

    P.C. Weaver

    2010-07-09

    5098-SR-02-0 PROJECT-SPECIFIC TYPE A VERIFICATION FOR THE HIGH FLUX BEAM REACTOR UNDERGROUND UTILITIES REMOVAL PHASE 2 DF WASTE LINE REMOVAL, BROOKHAVEN NATIONAL LABORATORY

  5. Power Lines and Crops Can Be Good Neighbors

    SciTech Connect (OSTI)

    2010-08-01

    Two of the Pacific Northwest’s greatest economic assets are its wealth of agriculture and its clean and reliable electricity fueled largely by hydropower. Sometimes the two intersect. Transmission lines carrying electricity to the region’s farms, businesses and homes must, of necessity, span large areas where people grow crops and orchards. To ensure a safe and reliable flow of electricity across these expanses, trees and other vegetation must be managed to certain standards. At the same time, the Bonneville Power Administration — which owns and operates three-quarters of the region’s high-voltage transmission — recognizes the importance of our region’s agricultural bounty. We are committed to working with individuals and agricultural communities to facilitate ongoing land-use activities in transmission rights-of-way as long as those uses are compatible with transmission safety and reliability standards. Our goal with vegetation management is to keep you and your property safe while protecting the reliability of our region’s electricity system. By working together, BPA and landowners can protect the system and public safety.

  6. Utility-Marketing Partnerships: An Effective Strategy for Marketing Green Power?

    SciTech Connect (OSTI)

    Bird, L. A.; Brown, E. S.

    2006-04-01

    This paper explores whether partnerships between utilities and independent marketers are an effective strategy for marketing green power. We present case studies of voluntary and mandatory partnerships covering green power program design and implementation in both regulated and restructured electricity markets. We also include perspectives (based on interviews) from utilities, marketers, and regulators involved in developing and implementing these partnerships. From these case studies and interviews, we describe lessons learned about developing effective partnerships, including such issues as respective roles in marketing and administration, product branding, and contract and incentive structures. Based on experience to date, strategic partnerships between utilities and marketers can be an effective approach to marketing green power. Partnerships leverage the sales and resource procurement experience of marketers and the utility?s reputation and access to customers. Further, partnerships can create greater incentives for success because marketers have a vested financial interest in maximizing customer participation and green power sales.

  7. Economic analysis of municipal wastewater utilization for thermoelectric power production

    SciTech Connect (OSTI)

    Safari, I.; Walker, M.; Abbasian, J.; Arastoopour, H.; Hsieh, M-K.; Theregowda, R.; Dzombak, D.; Miller, D.

    2011-01-01

    The thermoelectric power industry in the U.S. uses a large amount of freshwater. The large water demand is increasingly a problem, especially for new power plant development, as availability of freshwater for new uses diminishes in the United States. Reusing non-traditional water sources, such as treated municipal wastewater, provides one option to mitigate freshwater usage in the thermoelectric power industry. The amount of freshwater withdrawal that can be displaced with non-traditional water sources at a particular location requires evaluation of the water management and treatment requirements, considering the quality and abundance of the non-traditional water sources. This paper presents the development of an integrated costing model to assess the impact of degraded water treatment, as well as the implications of increased tube scaling in the main condenser. The model developed herein is used to perform case studies of various treatment, condenser cleaning and condenser configurations to provide insight into the ramifications of degraded water use in the cooling loops of thermoelectric power plants. Further, this paper lays the groundwork for the integration of relationships between degraded water quality, scaling characteristics and volatile emission within a recirculating cooling loop model.

  8. EIS-0465: Mid-Atlantic Power Pathway Transmission Line Project in Maryland

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

    and Delaware | Department of Energy 5: Mid-Atlantic Power Pathway Transmission Line Project in Maryland and Delaware EIS-0465: Mid-Atlantic Power Pathway Transmission Line Project in Maryland and Delaware March 4, 2011 EIS-0465: Notice of Intent to Prepare an Environmental Impact Statement Construction of Phase II of the Mid-Atlantic Power Pathway Transmission Line Project, in Maryland and Delaware February 4, 2011 EIS-0465: Announcement of Public Scoping Meetings Construction of Phase II of

  9. Microsoft Word - Broadband Over Power Lines_FINAL.06.01.10.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Broadband over Powerlines Can Accelerate the Transmission Smart Grid May 25, 2010 DOE/NETL-2010/1418 Broadband Over Power Lines Could Accelerate the Transmission Smart Grid Broadband Over Power Lines Could Accelerate the Transmission Smart Grid 1 Prepared by: Booz Allen Hamilton (BAH) Bruce Renz Renz Consulting, LLC DOE Contract number: DE-FE000400 Broadband Over Power Lines Could Accelerate the Transmission Smart Grid 2 Acknowledgements This report was prepared by Booz Allen Hamilton, Inc.

  10. SunLine Transit Agency, Hydrogen Powered Transit Buses: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2007-02-01

    This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency.

  11. SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary...

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

    This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency. 41001.pdf ...

  12. Mode Initialization for On-line Estimation of Power System Electromechanical Modes

    SciTech Connect (OSTI)

    Zhou, Ning; Trudnowski, Daniel; Pierre, John W.

    2009-03-18

    Measurement-based mode estimation methods are utilized to estimate electromechanical modes of a power system using phasor measurement units (PMU) data. These methods need to extract a certain amount of information before they can give useable mode estimation. Traditionally, the information is gathered solely from measurement data. Priori mode information from other resources (e.g. model eigenvalue analysis, engineering knowledge) are not fully utilized. For real time application, this means that mode estimation takes time to converge. By adding a mode regularization term in the objective function, this paper proposes a mode initialization method to include priori mode information in a regularized robust recursive least squares (R3LS) algorithm for on-line mode estimation. The proposed method is tested using a simple model, a 17 machine model and is shown to be able to shorten the convergence period of the R3LS algorithm. The proposed method is also applied on the measurement data recorded right before a major power outage in the western North American Grid on August 10th 1996 to show its potential applica-tion in detecting an approaching small signal stability problem.

  13. DOE Announces Webinars on the Distributed Wind Power Market, Utility Energy

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

    Service Contracts, and More | Department of Energy the Distributed Wind Power Market, Utility Energy Service Contracts, and More DOE Announces Webinars on the Distributed Wind Power Market, Utility Energy Service Contracts, and More August 21, 2013 - 12:00pm Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce. Webinars are free; however, advanced registration

  14. Electric utility antitrust issues in an era of bulk power market competition

    SciTech Connect (OSTI)

    Green, D.G.; Bouknight, J.A. Jr.

    1994-12-31

    The electric utility industry is facing a new spectrum of antitrust issues reflecting its transformation from an industry that is fully regulated to one that is partly regulated, partly competitive. There are two principal antitrust issues: claims of price squeezes and claims by municipal and cooperative utilities that their traditional utility supplier is refusing to wheel power from other suppliers. This article discusses the following related topics: new antitrust issues; regional transmission groups and other joint ventures; mergers.

  15. Utilization of municipal wastewater for cooling in thermoelectric power plants

    SciTech Connect (OSTI)

    Safari, Iman; Walker, Michael E.; Hsieh, Ming-Kai; Dzombak, David A.; Liu, Wenshi; Vidic, Radisav D.; Miller, David C.; Abbasian, Javad

    2013-09-01

    A process simulation model has been developed using Aspen Plus® with the OLI (OLI System, Inc.) water chemistry model to predict water quality in the recirculating cooling loop utilizing secondary- and tertiary-treated municipal wastewater as the source of makeup water. Simulation results were compared with pilot-scale experimental data on makeup water alkalinity, loop pH, and ammonia evaporation. The effects of various parameters including makeup water quality, salt formation, NH3 and CO2 evaporation mass transfer coefficients, heat load, and operating temperatures were investigated. The results indicate that, although the simulation model can capture the general trends in the loop pH, experimental data on the rates of salt precipitation in the system are needed for more accurate prediction of the loop pH. It was also found that stripping of ammonia and carbon dioxide in the cooling tower can influence the cooling loop pH significantly. The effects of the NH3 mass transfer coefficient on cooling loop pH appear to be more significant at lower values (e.g., kNH3 < 4×10-3 m/s) when the makeup water alkalinity is low (e.g., <90 mg/L as CaCO3). The effect of the CO2 mass transfer coefficient was found to be significant only at lower alkalinity values (e.g., kCO2<4×10-6 m/s).

  16. Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit

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

    Agency | Department of Energy Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Report details the six-month evaluation of the ThunderPower hydrogen fuel cell bus demonstrated at SunLine Transit Agency. sunline_report.pdf (1.27 MB) More Documents & Publications SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact

  17. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation

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

    Report and Appendices | Department of Energy and Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses. 43741-1.pdf (763.42 KB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results

  18. Green Power Transmission Line Given New Life | Department of...

    Office of Environmental Management (EM)

    The transmission line should generate about 150 construction jobs and 50 to 75 green jobs directly related to the wind energy companies, which have secured space for their wind ...

  19. Utility-Marketer Partnerships. An Effective Strategy for Marketing Green Power?

    SciTech Connect (OSTI)

    Bird, L. A.; Brown, E. S.

    2006-04-01

    This paper explores whether partnerships between utilities and independent marketers are an effective strategy for marketing green power. We present case studies of voluntary and mandatory partnerships covering green power program design and implementation in both regulated and restructured electricity markets. We also include perspectives (based on interviews) from utilities, marketers, and regulators involved in developing and implementing these partnerships. From these case studies and interviews, we describe lessons learned about developing effective partnerships, including such issues as respective roles in marketing and administration, product branding, and contract and incentive structures. Based on experience to date, strategic partnerships between utilities and marketers can be an effective approach to marketing green power. Partnerships leverage the sales and resource procurement experience of marketers and the utility’s reputation and access to customers. Further, partnerships can create greater incentives for success because marketers have a vested financial interest in maximizing customer participation and green power sales.

  20. Utilities

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

    1 July 2016 ______________________________________________________________________________ 1 Utilities [References: FAR 41, DEAR 941 and 970.4102] 1.0 Summary of Latest Changes This update includes administrative changes. 2.0 Discussion This chapter supplements other more primary acquisition regulations and policies contained in the references above and should be considered in the context of those references. 2.1 Overview. This section discusses the acquisition and sales of utility services by

  1. utilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water ...

  2. Electric Power Lines : Questions and Answers on Research into Health Effects.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1994-05-01

    Most people know that electric power lines, like the wiring in our homes, can cause serious electric shocks if we`re not careful. Many people also want to know whether the electric and magnetic fields (EMF) produced by power lines and other electrical devices cause health effects. The purpose of this booklet is to answer some common questions that the Bonneville Power Administration (BPA) receives about the possible effects of power lines on health. First, some basic electrical terms are defined, and electric and magnetic fields are debed. Next, answers are given to several questions about recent scientific studies. Some important information about electrical safety follows. We then describe how BPA is addressing public concerns about potential health effects of power lines. The last section tells you how to obtain more detailed information about the health and safety issues summarized in this booklet.

  3. Line-Focus Solar Power Plant Cost Reduction Plan (Milestone Report)

    SciTech Connect (OSTI)

    Kutscher, C.; Mehos, M.; Turchi, C.; Glatzmaier, G.; Moss, T.

    2010-12-01

    Line-focus solar collectors, in particular parabolic trough collectors, are the most mature and proven technology available for producing central electricity from concentrated solar energy. Because this technology has over 25 years of successful operational experience, resulting in a low perceived risk, it is likely that it will continue to be a favorite of investors for some time. The concentrating solar power (CSP) industry is developing parabolic trough projects that will cost billions of dollars, and it is supporting these projects with hundreds of millions of dollars of research and development funding. While this technology offers many advantages over conventional electricity generation -- such as utilizing plentiful domestic renewable fuel and having very low emissions of greenhouse gases and air pollutants -- it provides electricity in the intermediate power market at about twice the cost of its conventional competitor, combined cycle natural gas. The purpose of this document is to define a set of activities from fiscal year 2011 to fiscal year 2016 that will make this technology economically competitive with conventional means.

  4. Sierra Pacific Power Company Alturas Transmission Line Project. Final environmental impact report/environmental impact statement, Volume I

    SciTech Connect (OSTI)

    1995-11-01

    This Environmental Impact Report/Environmental Impact Statement (EIR/S) describes the environmental setting and consequences of the construction and operation of the proposed Alturas Transmission Line Project. Sierra Pacific Power Company (SPPCo) has proposed this electric power transmission line to improve the existing operational capacity and reliability of its power transmission system and provide for anticipated growth in demand for electric power. This document was prepared by the California Public Utilities Commission (CPUC) and the U.S. Department of the Interior, Bureau of Land Management (BLM), pursuant to the California Environmental Quality Act (CEQA) and the National Environmental Policy Act (NEPA), respectively. The purpose of this joint EIR/S is to report the results of the CPUC`s and BLM`s independent assessment of the potential environmental impacts that would result from the construction, operation, and maintenance of the proposed Alturas Transmission Line Project. The impact analysis is accompanied by the identification of feasible mitigation measures which, if incorporated into the project, would avoid or minimize impacts. This EIR/S also assesses alternatives to the Proposed Project and identifies those with the potential to eliminate or minimize impacts. This document considers comments made by agencies and the general public during the public scoping and Draft EIR/S comment periods.

  5. The effect of power line phase current correlation on magnetic field statistics

    SciTech Connect (OSTI)

    Dabkowski, J. [Electro Sciences, Inc., Crystal Lake, IL (United States)

    1995-09-01

    Due to normally occurring line currents unbalance, the magnetic field strength will fluctuate in time. The minimum field occurs when the phase currents are balanced, i.e. equal in magnitude and equally spaced in angle. The maximum field levels are obtained when the line currents` fluctuations are statistically independent, and hence, uncorrelated. It is shown that the earth return current due to the unbalance, and therefore, the strength of the magnetic field variations are a function of the line`s phase currents correlation. Power lines whose phase currents are highly correlated will produce a smaller increase in the magnetic field levels for a given percentage of current unbalance.

  6. Tucson Electric Power Company Sahuarita-Nogales Transmission Line Draft Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2003-08-27

    Tucson Electric Power Company (TEP) has applied to the U.S. Department of Energy (DOE) for a Presidential Permit to construct and operate a double-circuit, 345,000-volt (345-kV) electric transmission line across the United States border with Mexico. Under Executive Order (EO) 10485 of September 3, 1953, as amended by EO 12038 of February 3, 1978, a Presidential Permit is required to construct, connect, operate, or maintain facilities at the U.S. international border for the transmission of electric energy between the United States and a foreign country. DOE has determined that the issuance of a Presidential Permit to TEP for the proposed project would constitute a major Federal action that may have a significant impact on the environment within the meaning of the ''National Environmental Policy Act of 1969'' (NEPA) 42 United States Code (U.S.C.) {section}4321 et seq. For this reason, DOE has prepared this Draft Environmental Impact Statement (EIS) to evaluate potential environmental impacts from the proposed Federal action (granting a Presidential Permit for the proposed transmission facilities) and reasonable alternatives, including the No Action Alternative. This EIS was prepared in accordance with Section 102(2)(c) of NEPA, Council of Environmental Quality (CEQ) regulations (40 Code of Federal Regulations [CFR] 1500-1508), and DOE NEPA Implementing Procedures (10 CFR 1021). DOE is the lead Federal Agency, as defined by 40 CFR 1501.5. The U.S. Department of Agriculture Forest Service (USFS), the Bureau of Land Management (BLM) of the U.S. Department of the Interior, and the U.S. Section of the International Boundary and Water Commission, U.S. and Mexico (USIBWC), are cooperating agencies. Each of these organizations will use the EIS for its own NEPA purposes, as described in the Federal Agencies' Purpose and Need and Authorizing Actions section of this summary. The 345-kV double-circuit transmission line would consist of twelve transmission line wires, or

  7. Incentive regulation of investor-owned nuclear power plants by public utility regulators. Revision 1

    SciTech Connect (OSTI)

    McKinney, M.D.; Seely, H.E.; Merritt, C.R.; Baker, D.C.

    1995-04-01

    The US Nuclear Regulatory Commission (NRC) periodically surveys the Federal Energy Regulatory Commission (FERC) and state regulatory commissions that regulate utility owners of nuclear power plants. The NRC is interested in identifying states that have established economic or performance incentive programs applicable to nuclear power plants, how the programs are being implemented, and in determining the financial impact of the programs on the utilities. The NRC interest stems from the fact that such programs have the potential to adversely affect the safety of nuclear power plants. The current report is an update of NUREG/CR-5975, Incentive Regulation of Investor-Owned Nuclear Power Plants by Public Utility Regulators, published in January 1993. The information in this report was obtained from interviews conducted with each state regulatory agency that administers an incentive program and each utility that owns at least 10% of an affected nuclear power plant. The agreements, orders, and settlements that form the basis for each incentive program were reviewed as required. The interviews and supporting documentation form the basis for the individual state reports describing the structure and financial impact of each incentive program.

  8. A Quantitative Assessment of Utility Reporting Practices for Reporting Electric Power Distribution Events

    SciTech Connect (OSTI)

    Hamachi La Commare, Kristina

    2011-11-11

    Metrics for reliability, such as the frequency and duration of power interruptions, have been reported by electric utilities for many years. This study examines current utility practices for collecting and reporting electricity reliability information and discusses challenges that arise in assessing reliability because of differences among these practices. The study is based on reliability information for year 2006 reported by 123 utilities in 37 states representing over 60percent of total U.S. electricity sales. We quantify the effects that inconsistencies among current utility reporting practices have on comparisons of System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) reported by utilities. We recommend immediate adoption of IEEE Std. 1366-2003 as a consistent method for measuring and reporting reliability statistics.

  9. Capacity utilization and fuel consumption in the electric power industry, 1970-1981

    SciTech Connect (OSTI)

    Lewis, E.W.

    1982-07-01

    This report updates the 1980 Energy Information Administration (EIA) publication entitled Trends in the Capacity Utilization and Fuel Consumption of Electric Utility Powerplants, 1970-1978, DOE/EIA-184/32. The analysis covers the period from 1970 through 1981, and examines trends during the period prior to the 1973 Arab oil embargo (1970-1973), after the embargo (1974-1977), and during the immediate past (1978-1981). The report also addresses other factors affecting the electric utility industry since the oil embargo: the reduction in foreign oil supplies as a result of the 1979 Iranian crisis, the 1977 drought in the western United States, the 1978 coal strike by the United Mine Workers Union, and the shutdown of nuclear plants in response to the accident at Three Mile Island. Annual data on electric utility generating capacity, net generation, and fuel consumption are provided to identify changes in patterns of power plant capacity utilization and dispatching.

  10. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation...

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

    SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update This report provides an update on the evaluation results for hydrogen and CNG-fueled buses ...

  11. COE projection for the modular WARP{trademark} wind power system for wind farms and electric utility power transmission

    SciTech Connect (OSTI)

    Weisbrich, A.L.; Ostrow, S.L.; Padalino, J.

    1995-09-01

    Wind power has emerged as an attractive alternative source of electricity for utilities. Turbine operating experience from wind farms has provided corroborating data of wind power potential for electric utility application. Now, a patented modular wind power technology, the Toroidal Accelerator Rotor Platform (TARP{trademark}) Windframe{trademark}, forms the basis for next generation megawatt scale wind farm and/or distributed wind power plants. When arranged in tall vertically clustered TARP{trademark} module stacks, such power plant units are designated Wind Amplified Rotor Platform (WARP{trademark}) Systems. While heavily building on proven technology, these systems are projected to surpass current technology windmills in terms of performance, user-friendly operation and ease of maintenance. In its unique generation and transmission configuration, the WARP{trademark}-GT System combines both electricity generation through wind energy conversion and electric power transmission. Furthermore, environmental benefits include dramatically less land requirement, architectural appearance, lower noise and EMI/TV interference, and virtual elimination of bird mortality potential. Cost-of-energy (COE) is projected to be from under $0.02/kWh to less than $0.05/kWh in good to moderate wind resource sites.

  12. Some fundamental questions on market power: No easy answers for state utility regulators

    SciTech Connect (OSTI)

    Costello, K.W.; Rose, K.

    1998-07-01

    This article poses some basic issues, antitrust in nature, that public utility commissions (PUCs) will face in dealing with market power. These issues focus on the sources, measurement and detection, and mitigation of market power. A brief discussion of the underlying issues from different economic perspectives follows. The article attempts to show that reasonable people, or at least people with seemingly reasonable ideas, can make arguments or take positions with very different policy implications.

  13. Real power regulation for the utility power grid via responsive loads

    DOE Patents [OSTI]

    McIntyre, Timothy J [Knoxville, TN; Kirby, Brendan J [Knoxville, TN; Kisner, Roger A

    2009-05-19

    A system for dynamically managing an electrical power system that determines measures of performance and control criteria for the electric power system, collects at least one automatic generation control (AGC) input parameter to at least one AGC module and at least one automatic load control (ALC) input parameter to at least one ALC module, calculates AGC control signals and loads as resources (LAR) control signals in response to said measures of performance and control criteria, propagates AGC control signals to power generating units in response to control logic in AGC modules, and propagates LAR control signals to at least one LAR in response to control logic in ALC modules.

  14. A probabilistic approach to calculating AC induction levels on power line collocated pipelines

    SciTech Connect (OSTI)

    Dabkowski, J. [Electro Sciences, Inc., Crystal Lake, IL (United States)

    1995-12-01

    For calculating induced voltage levels on pipelines paralleling overhead power lines available computational methods assume that the line circuit currents are balanced, i.e., equal. In this paper probabilistic computational methods are used to calculate induction levels for the more realistic assumption that the line currents carry a small randomly fluctuating component, and therefore, are unbalanced. Results show that limiting consideration to the balanced currents case can result in substantially underestimated induced voltage levels on the pipeline.

  15. Electric Power Lines : Questions and Answers on Research into Health Effects.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1993-11-01

    Most people know that electric power lines, like the wiring in our homes, can cause serious electric shocks if we`re not careful. Many people also want to know whether the electric and magnetic fields (EMF) produced by power lines and other electrical devices cause health effects. The purpose of this pamphlet is to answer some common questions that the Bonneville Power Administration (BPA) receives about the possible effects of power lines on health. (BPA is the Pacific Northwest`s Federal electric power marketing agency.) First, some basic electrical terms are defined, and electric and magnetic fields are described. Next, answers are given to several questions about recent scientific studies. We then describe how BPA is addressing public concerns raised by these studies. Some important information about electrical safety follows. The last section tells you how to obtain more detailed information about the health and safety issues summarized in this pamphlet.

  16. An utility perspective of power supply security under open market conditions

    SciTech Connect (OSTI)

    Imhof, K.; Ruckstuhl, T.

    1998-07-01

    Traditionally, security of the power supply was one of the major objectives of utility companies; this objective was optimized on the basis of mainly technical considerations. Economic aspects imposed at most some limits to investment planning. Under today's market conditions unbundling is the key. Identification and isolation of the individual activities and services of the all-encompassing utility task forces is needed, starting from generating power to supplying it to individual customers. In order to properly price each of these services which will include the security of the power supply, all inherent costs have to be taken into account. Confronting the end user of the service with individual components of the price will give him the possibility to make the right trade-off when choosing his desired level of security. Looking from different angles, the definition of the service ``Security of Power Supply'' may vary. For example, when speaking about security of production, either the security of the transmission or the security to guarantee the end user a supply with a defined quality may be meant. For a power utility on the way to the open market the shaping of the service ``Security of Power Supply'' is both a labor-intensive and a controversial job. It requires the exact definition of the services as well as the identification of all the associated costs. Besides the utility' s internal activities also a marketing job needs to be done: Customers have to be educated to the idea of having a choice of security levels - with different price tags--when buying power.

  17. Utility-Scale Concentrating Solar Power and Photovoltaic Projects: A Technology and Market Overview

    SciTech Connect (OSTI)

    Mendelsohn, M.; Lowder, T.; Canavan, B.

    2012-04-01

    Over the last several years, solar energy technologies have been, or are in the process of being, deployed at unprecedented levels. A critical recent development, resulting from the massive scale of projects in progress or recently completed, is having the power sold directly to electric utilities. Such 'utility-scale' systems offer the opportunity to deploy solar technologies far faster than the traditional 'behind-the-meter' projects designed to offset retail load. Moreover, these systems have employed significant economies of scale during construction and operation, attracting financial capital, which in turn can reduce the delivered cost of power. This report is a summary of the current U.S. utility-scale solar state-of-the-market and development pipeline. Utility-scale solar energy systems are generally categorized as one of two basic designs: concentrating solar power (CSP) and photovoltaic (PV). CSP systems can be further delineated into four commercially available technologies: parabolic trough, central receiver (CR), parabolic dish, and linear Fresnel reflector. CSP systems can also be categorized as hybrid, which combine a solar-based system (generally parabolic trough, CR, or linear Fresnel) and a fossil fuel energy system to produce electric power or steam.

  18. DOE Seeks Projects to Advance Carbon Dioxide Utilization from Coal-Fired Power Plants

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) has announced approximately $6.7 million in federal funding for cost-shared projects that will develop technologies that utilize carbon dioxide (CO2) from coal-fired power plants to produce useful products.

  19. Expected Power-Utility Maximization Under Incomplete Information and with Cox-Process Observations

    SciTech Connect (OSTI)

    Fujimoto, Kazufumi; Nagai, Hideo; Runggaldier, Wolfgang J.

    2013-02-15

    We consider the problem of maximization of expected terminal power utility (risk sensitive criterion). The underlying market model is a regime-switching diffusion model where the regime is determined by an unobservable factor process forming a finite state Markov process. The main novelty is due to the fact that prices are observed and the portfolio is rebalanced only at random times corresponding to a Cox process where the intensity is driven by the unobserved Markovian factor process as well. This leads to a more realistic modeling for many practical situations, like in markets with liquidity restrictions; on the other hand it considerably complicates the problem to the point that traditional methodologies cannot be directly applied. The approach presented here is specific to the power-utility. For log-utilities a different approach is presented in Fujimoto et al. (Preprint, 2012).

  20. Commercialization of PV-powered pumping systems for use in utility PV service programs. Final report

    SciTech Connect (OSTI)

    1997-03-01

    The project described in this report was a commercialization effort focused on cost-effective remote water pumping systems for use in utility-based photovoltaic (PV) service programs. The project combined a commercialization strategy tailored specifically for electric utilities with the development of a PV-powered pumping system that operates conventional ac pumps rather than relying on the more expensive and less reliable PV pumps on the market. By combining these two attributes, a project goal was established of creating sustained utility purchases of 250 PV-powered water pumping systems per year. The results of each of these tasks are presented in two parts contained in this Final Summary Report. The first part summarizes the results of the Photovoltaic Services Network (PSN) as a new business venture, while the second part summarizes the results of the Golden Photon system installations. Specifically, results and photographs from each of the system installations are presented in this latter part.

  1. Impacts of Western Area Power Administration`s power marketing alternatives on retail electricity rates and utility financial viability

    SciTech Connect (OSTI)

    Bodmer, E.; Fisher, R.E.; Hemphill, R.C.

    1995-03-01

    Changes in power contract terms for customers of Western`s Salt Lake City Area Office affect electricity rates for consumers of electric power in Arizona, Colorado, Nevada, New Mexico, Utah, and Wyoming. The impacts of electricity rate changes on consumers are studied by measuring impacts on the rates charged by individual utility systems, determining the average rates in regional areas, and conducting a detailed rate analysis of representative utility systems. The primary focus is an evaluation of the way retail electricity rates for Western`s preference customers vary with alternative pricing and power quantity commitment terms under Western`s long-term contracts to sell power (marketing programs). Retail rate impacts are emphasized because changes in the price of electricity are the most direct economic effect on businesses and residences arising from different Western contractual and operational policies. Retail rates are the mechanism by which changes in cost associated with Western`s contract terms are imposed on ultimate consumers, and rate changes determine the dollar level of payments for electric power incurred by the affected consumers. 41 figs., 9 tabs.

  2. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation

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

    Report -- Appendices | Department of Energy -- Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report -- Appendices This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses. For main report, see NREL/TP-560-43741. 43741-2.pdf (1.69 MB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses:

  3. Homeowners: Respond to Power Outages | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Power Outages After a disaster, electric utilities and government officials will first work to restore power to critical infrastructure like power plants and transmission lines, ...

  4. Efficient Power Converters for PV Arrays : Scalable Submodule Power Conversion for Utility-Scale Photovoltaics

    SciTech Connect (OSTI)

    2012-02-23

    Solar ADEPT Project: SolarBridge is developing a new power conversion technique to improve the energy output of PV power plants. This new technique is specifically aimed at large plants where many solar panels are connected together. SolarBridge is correcting for the inefficiencies that occur when two solar panels that encounter different amounts of sun are connected together. In most conventional PV system, the weakest panel limits the energy production of the entire system. That’s because all of the energy collected by the PV system feeds into a single collection point where a central inverter then converts it into useable energy for the grid. SolarBridge has found a more efficient and cost-effective way to convert solar energy, correcting these power differences before they reach the grid.

  5. Financial impacts of nonutility power purchases on investor-owned electric utilities

    SciTech Connect (OSTI)

    Not Available

    1994-06-01

    To assist in its these responsibilities in the area of electric power, EIA has prepared this report, Financial Impacts of Nonutility Power Purchases on Investor-Owned Electric Utilities. The primary purpose of this report is to provide an overview of the issues surrounding the financial impacts of nonutility generation contracts (since the passage of the Public Utility Regulatory Policies Act of 1978) on investor-owned utilities. The existing concern in this area is manifest in the provisions of Section 712 of the Energy Policy Act of 1992, which required State regulatory commissions to evaluate various aspects of long-term power purchase contracts, including their impact on investor-owned utilities` cost of capital and rates charged to customers. The EIA does not take positions on policy questions. The EIA`s responsibility is to provide timely, high quality information and to perform objective, credible analyses in support of the deliberations by both public and private decision-makers. Accordingly, this report does not purport to represent the policy positions of the US Department of Energy or the Administration.

  6. A learning-pattern recognition system for static-line-loading security assessment of power system

    SciTech Connect (OSTI)

    Prasad, N.R.

    1989-01-01

    The methodologies explored in this dissertation address the topic static-line-loading security using a learning pattern recognition approach. A basic issue in the pattern recognition approach is to determine if, indeed, the patterns of power system behavior are separable in terms of secure and insecure classes. Class separability is studied from the viewpoint of both intraset clustering and interset dispersion using feature extraction methodologies. While interset dispersion is examined only to the extent of whether or not it exists, no specific attempts are made to optimize the dispersion through feature selection methodologies. The properties of pattern vectors to exhibit intraset clustering and interset dispersion are explored using two different techniques. These techniques are the Karhunen-Loeve Expansion Method which does not assume any specific statistical distribution for the patterns, and the Minimum Entropy Method which assumes patterns that exhibit Gaussian distributions. Although both methods are fundamentally based on the concept of entropy minimization, the transformational properties that yield clustering are distinctly different. The differences are due to assumptions made regarding the statistical distributions of patterns representing system behavior. The application of patterns based on engineering heuristics and a priori knowledge of the system behavior is shown to provide enhanced classification power in the pattern recognition system. Results for several test systems are documented. The feasibility of utilizing mathematical pattern recognition techniques as a primary information processing system for security assessment and a means to subsequently induce learning is demonstrated. As such, a framework for the development of decision making tools with subsequent inputs to rule-based expert systems is speculated in a learning environment.

  7. On-line method of determining utilization factor in Hg-196 photochemical separation process

    DOE Patents [OSTI]

    Grossman, Mark W.; Moskowitz, Philip E.

    1992-01-01

    The present invention is directed to a method for determining the utilization factor [U] in a photochemical mercury enrichment process (.sup.196 Hg) by measuring relative .sup.196 Hg densities using absorption spectroscopy.

  8. SULFUR REMOVAL FROM PIPE LINE NATURAL GAS FUEL: APPLICATION TO FUEL CELL POWER GENERATION SYSTEMS

    SciTech Connect (OSTI)

    King, David L.; Birnbaum, Jerome C.; Singh, Prabhakar

    2003-11-21

    Pipeline natural gas is being considered as the fuel of choice for utilization in fuel cell-based distributed generation systems because of its abundant supply and the existing supply infrastructure (1). For effective utilization in fuel cells, pipeline gas requires efficient removal of sulfur impurities (naturally occurring sulfur compounds or sulfur bearing odorants) to prevent the electrical performance degradation of the fuel cell system. Sulfur odorants such as thiols and sulfides are added to pipeline natural gas and to LPG to ensure safe handling during transportation and utilization. The odorants allow the detection of minute gas line leaks, thereby minimizing the potential for explosions or fires.

  9. Electric Power Lines : Questions and Answers on Research into Health Effects.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1995-06-01

    Most people know that electric power lines, like the wiring in our homes, can cause serious electric shocks if we`re not careful. Many people also want to know whether the EMF (electric and magnetic fields) produced by power lines and other electrical devices affect our health. Although no adverse health effects of electric power EMF have been confirmed, there is continued scientific uncertainty about this issue. Research on EMF is ongoing throughout the world. The purpose of this booklet is to answer some common questions that the BPA (Bonneville Power Administration) receives about the possible effects of power lines on health. First, some basic electrical terms are defined, and electric and magnetic fields are debed. Next, answers are given to several questions about recent scientific studies. Some important information about electrical safety follows. We then describe how BPA is addressing public concerns about potential health effects of power lines. The last section tells you how to obtain more detailed information about the health and safety issues summarized in this booklet.

  10. Power Electronics for Distributed Energy Systems and Transmission and Distribution Applications: Assessing the Technical Needs for Utility Applications

    SciTech Connect (OSTI)

    Tolbert, L.M.

    2005-12-21

    Power electronics can provide utilities the ability to more effectively deliver power to their customers while providing increased reliability to the bulk power system. In general, power electronics is the process of using semiconductor switching devices to control and convert electrical power flow from one form to another to meet a specific need. These conversion techniques have revolutionized modern life by streamlining manufacturing processes, increasing product efficiencies, and increasing the quality of life by enhancing many modern conveniences such as computers, and they can help to improve the delivery of reliable power from utilities. This report summarizes the technical challenges associated with utilizing power electronics devices across the entire spectrum from applications to manufacturing and materials development, and it provides recommendations for research and development (R&D) needs for power electronics systems in which the U.S. Department of Energy (DOE) could make a substantial impact toward improving the reliability of the bulk power system.

  11. Utility Test Results of a 2-Megawatt, 10-Second Reserve-Power System

    SciTech Connect (OSTI)

    BALL,GREG J.; NORRIS,BENJAMIN L.

    1999-10-01

    This report documents the 1996 evaluation by Pacific Gas and Electric Company of an advanced reserve-power system capable of supporting 2 MW of load for 10 seconds. The system, developed under a DOE Cooperative Agreement with AC Battery Corporation of East Troy, Wisconsin, contains battery storage that enables industrial facilities to ''ride through'' momentary outages. The evaluation consisted of tests of system performance using a wide variety of load types and operating conditions. The tests, which included simulated utility outages and voltage sags, demonstrated that the system could provide continuous power during utility outages and other disturbances and that it was compatible with a variety of load types found at industrial customer sites.

  12. System for transmitting low frequency analog signals over AC power lines

    DOE Patents [OSTI]

    Baker, Steven P.; Durall, Robert L.; Haynes, Howard D.

    1989-01-01

    A system for transmitting low frequency analog signals over AC power lines using FM modulation. A low frequency analog signal to be transmitted is first applied to a voltage-to-frequency converter where it is converted to a signal whose frequency varies in proportion to the analog signal amplitude. This signal is then used to modulate the carrier frequency of an FM transmitter coupled to an AC power line. The modulation signal frequency range in selected to be within the response band of the FM transmitter. The FM modulated carrier signal is received by an FM receiver coupled to the AC power line, demodulated and the demodulated signal frequency is converted by a frequency-to-voltage converter back to the form of the original low frequency analog input signal.

  13. A system for tranmitting low frequency analog signals over ac power lines

    DOE Patents [OSTI]

    Baker, S.P.; Durall, R.L.; Haynes, H.D.

    1987-07-30

    A system for transmitting low frequency analog signals over ac power lines using FM modulation. A low frequency analog signal to be transmitted is first applied to a voltage-to-frequency converter where it is converted to a signal whose frequency varies in proportion to the analog signal amplitude. This signal is then used to modulate the carrier frequency of an FM transmitter coupled to an ac power line. The modulation signal frequency range is selected to be within the response band of the FM transmitter. The FM modulated carrier signal is received by an FM receiver coupled to the ac power line, demodulated and the demodulated signal frequency is converted by a frequency-to-voltage converter back to the form of the original low frequency analog input signal. 4 figs.

  14. Sacramento Municipal Utility District Geothermal Power Plant, SMUDGEO No. 1. Final report

    SciTech Connect (OSTI)

    Not Available

    1981-02-01

    The proposed construction of 72-MW geothermal power plant is discussed. The following aspects are covered: the project as proposed by the utility; the environmental setting; the adverse consequences of the project, any significant environmental effects which cannot be avoided, and any mitigation measures to minimize significant effects; the potential feasible alternatives to the proposed project; the significant unavoidable, irreversible, and long-term environmental impacts; and the Growth Inducing Impacts. (MHR)

  15. Balancing Autonomy and Utilization of Solar Power and Battery Storage for Demand Based Microgrids.

    SciTech Connect (OSTI)

    Lawder, Matthew T.; Viswanathan, Vilayanur V.; Subramanian, Venkat R.

    2015-04-01

    The growth of intermittent solar power has developed a need for energy storage systems in order to decouple generation and supply of energy. Microgrid (MG) systems comprising of solar arrays with battery energy storage studied in this paper desire high levels of autonomy, seeking to meet desired demand at all times. Large energy storage capacity is required for high levels of autonomy, but much of this expensive capacity goes unused for a majority of the year due to seasonal fluctuations of solar generation. In this paper, a model-based study of MGs comprised of solar generation and battery storage shows the relationship between system autonomy and battery utilization applied to multiple demand cases using a single particle battery model (SPM). The SPM allows for more accurate state-of-charge and utilization estimation of the battery than previous studies of renewably powered systems that have used empirical models. The increased accuracy of battery state estimation produces a better assessment of system performance. Battery utilization will depend on the amount of variation in solar insolation as well as the type of demand required by the MG. Consumers must balance autonomy and desired battery utilization of a system within the needs of their grid.

  16. Wallula Power Project and Wallula - McNary Transmission Line Project Final Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2002-08-16

    Wallula Generation, LLC proposes to construct a 1,300-megawatt (MW) natural gas-fired combined-cycle combustion gas turbine facility (the Wallula Power Project). The project would be located in the northwestern portion of Walla Walla County, Washington, approximately 8 miles south of the City of Pasco, 2 miles north of the unincorporated community of Wallula, and 7 miles southeast of the unincorporated community of Burbank. The purpose of the proposed power project is to provide energy to meet the needs of the Northwest and other interconnected electric transmission areas where electrical energy is needed. Firm transmission of the power generated by the Wallula Power Project would require construction of a new 500-kilovolt (kV) transmission line and construction of a new switchyard near Smiths Harbor. Approximately 5.1 miles of new transmission line from the proposed generation plant to the new switchyard would be completed. An additional 28 miles of new transmission line from the Smiths Harbor Switchyard to the McNary Substation would be constructed adjacent to the existing Lower Monumental-McNary transmission line and upgrades completed to the existing McNary Substation if loads are exceeded on the existing line. Wallula Generation, LLC, would construct and operate the generation plant and associated facilities, including the makeup water supply line. Bonneville would design, construct, and operate the two 500 kV transmission line segments and switchyard. To supply natural gas to the plant site, a 5.9-mile pipeline interconnection would be engineered, constructed, owned, and operated by PG&E Gas Transmission-Northwest (GTN). This EIS evaluates the environmental impacts of the proposed action, which includes the proposed power plant and 33-mile transmission line. It also evaluates an alternative using taller towers and longer spans between towers along part of the transmission line, and the use of an alternative approach for the transmission line where it would

  17. Optimal site selection and sizing of distributed utility-scale wind power plants

    SciTech Connect (OSTI)

    Milligan, M.R.; Artig, R.

    1998-04-01

    As electric market product unbundling occurs, sellers in the wholesale market for electricity will find it to their advantage to be able to specify the quantity of electricity available and the time of availability. Since wind power plants are driven by the stochastic nature of the wind itself, this can present difficulties. To the extent that an accurate wind forecast is available, contract deviations, and therefore penalties, can be significantly reduced. Even though one might have the ability to accurately forecast the availability of wind power, it might not be available during enough of the peak period to provide sufficient value. However, if the wind power plant is developed over geographically disperse locations, the timing and availability of wind power from these multiple sources could provide a better match with the utility`s peak load than a single site. There are several wind plants in various stages of planning or development in the US. Although some of these are small-scale demonstration projects, significant wind capacity has been developed in Minnesota, with additional developments planned in Wyoming and Iowa. As these and other projects are planned and developed, there is a need to perform analysis of the value of geographically diverse sites on the efficiency of the overall wind plant. In this paper, the authors use hourly wind-speed data from six geographically diverse sites to provide some insight into the potential benefits of disperse wind plant development. They provide hourly wind power from each of these sites to an electric reliability simulation model. This model uses generating plant characteristics of the generators within the state of Minnesota to calculate various reliability indices. Since they lack data on wholesale power transactions, they do not include them in the analysis, and they reduce the hourly load data accordingly. The authors present and compare results of their methods and suggest some areas of future research.

  18. EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York

    Broader source: Energy.gov [DOE]

    This EIS evaluated the potential environmental impacts of a DOE proposal to grant a Presidential permit to Champlain Hudson Power Express, Inc., to construct, operate, maintain, and connect a new 1000-megawatt (MW) electric transmission system across the U.S.-Canada border in northeastern New York State. The proposed transmission line would run from the Canadian Province of Quebec to New York City.

  19. The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power transmission Lines

    SciTech Connect (OSTI)

    Wang, Jy-An John; Jiang, Hao; Ren, Fei

    2012-01-01

    Due to material discontinuity and inherited forming mechanism from a crimped-type splice connector, the associated conductor-connector system is highly sensitive to system components aging, especially during high-temperature operations. Furthermore, due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than the original designed values. This has led to the accelerated aging and degradation of conductor-connector systems. The implications of connector aging are two-fold: (1) significant increase in resistivity of the splice connector and (2) significant reduction in the connector clamping strength. Therefore, splice connectors are one of the weakest links in the electric power transmission infrastructure. In this paper we will discuss the reliability of splice connector systems, including both single stage and two stage splice connectors, used in ACSR conductor of transmission lines under high temperature operations.

  20. HEADLINE: BPA RAISES RATES TO BOLSTER FEDERAL POWER AND TRANSMISSION...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    high-voltage transmission lines that serve Northwest public utilities." For Bonneville's utility power customers, the wholesale rate increase will be an average of 9 percent...

  1. Examination of incentive mechanisms for innovative technologies applicable to utility and nonutility power generators

    SciTech Connect (OSTI)

    McDermott, K.A.; Bailey, K.A.; South, D.W.

    1993-08-01

    Innovative technologies, built by either utility or nonutility power generators, have the potential to lower costs with less environmental emissions than conventional technologies. However, the public-good nature of information, along with uncertain costs, performance, and reliability, discourages rapid adoption of these technologies. The effect of regulation of electricity production may also have an adverse impact on motivation to innovate. Slower penetration of cleaner, more efficient technologies could result in greater levels of pollution, higher electricity prices, and a reduction in international competitiveness. Regulatory incentives could encourage adoption and deployment of innovative technologies of all kinds, inducting clean coal technologies. Such incentives must be designed to offset risks inherent in innovative technology and encourage cost-effective behavior. To evaluate innovative and conventional technologies equally, the incremental cost of risk (ICR) of adopting the innovative technology must be determined. Through the ICR, the magnitude of incentive required to make a utility (or nonutility) power generator equally motivated to use either conventional or innovative technologies can be derived. Two technology risks are examined: A construction risk, represented by a 15% cost overrun, and an operating risk, represented by a increased forced outage rate (decreased capacity factor). Different incentive mechanisms and measurement criteria are used to assess the effects of these risks on ratepayers and shareholders. In most cases, a regulatory incentive could offset the perceived risks while encouraging cost-effective behavior by both utility and nonutility power generators. Not only would the required incentive be recouped, but the revenue requirements would be less for the innovative technology; also, less environmental pollution would be generated. In the long term, ratepayers and society would benefit from innovative technologies.

  2. Simulation of one-minute power output from utility-scale photovoltaic generation systems.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Ellis, Abraham; Hansen, Clifford W.

    2011-08-01

    We present an approach to simulate time-synchronized, one-minute power output from large photovoltaic (PV) generation plants in locations where only hourly irradiance estimates are available from satellite sources. The approach uses one-minute irradiance measurements from ground sensors in a climatically and geographically similar area. Irradiance is translated to power using the Sandia Array Performance Model. Power output is generated for 2007 in southern Nevada are being used for a Solar PV Grid Integration Study to estimate the integration costs associated with various utility-scale PV generation levels. Plant designs considered include both fixed-tilt thin-film, and single-axis-tracked polycrystalline Si systems ranging in size from 5 to 300 MW{sub AC}. Simulated power output profiles at one-minute intervals were generated for five scenarios defined by total PV capacity (149.5 MW, 222 WM, 292 MW, 492 MW, and 892 MW) each comprising as many as 10 geographically separated PV plants.

  3. High Energy Utilization, Co-Generation Nuclear power Plants With Static Energy Conversion

    SciTech Connect (OSTI)

    El-Genk, Mohamed S.; Tournier, Jean-Michel P.

    2002-07-01

    In addition to being cost effective, very small nuclear power plants with static energy conversion could meet the needs and the energy mix in underdeveloped countries and remote communities, which may include electricity, residential and industrial space heating, seawater desalination, and/or high temperature process heat or steam for industrial uses. These plants are also an attractive option in naval, marine, and undersea applications, when the absence of a sound signature is highly desirable. An Analysis is performed of Gas Cooled Reactor (CGR) and Liquid Metal Cooled Reactor (LMR), very small nuclear power plants with static energy conversion, using a combination of options. These include Alkali Metal Thermal-to-Electric Converters (AMTECs) and both single segment and segmented thermoelectric converters. The total energy utilization of these plants exceeds 88%. It includes the fraction of the reactor's thermal power converted into electricity and delivered to the Grid at 6.6 kVA and those used for residential and industrial space heating at {approx}370 K, seawater desalination at 400 K, and/or high temperature process heat or steam at {approx}850 K. In addition to its inherently high reliability, modularity, low maintenance and redundancy, static energy conversion used in the present study could deliver electricity to the Grid at a net efficiency of 29.5%. A LMR plant delivers 2-3 times the fraction of the reactor thermal power converted into electricity in a GCR plant, but could not provide for both seawater desalination and high temperature process heat/steam concurrently, which is possible in GCR plants. The fraction of the reactor's thermal power used for non-electrical power generation in a GCR plant is {approx} 10 - 15% higher than in a LMR plant. (authors)

  4. A utility survey and market assessment on repowering in the electric power industry

    SciTech Connect (OSTI)

    Klara, J.M.; Weinstein, R.E.; Wherley, M.R.

    1996-08-01

    Section 1 of this report provides a background about the DOE High Performance Power Systems (HIPPS) program. There are two kinds of HIPPS cycles under development. One team is led by the Foster Wheeler Development Corporation, the other team is led by the United Technologies Research Center. These cycles are described. Section 2 summarizes the feedback from the survey of the repowering needs of ten electric utility companies. The survey verified that the utility company planners favor a repowering for a first-of-a-kind demonstration of a new technology rather than an all-new-site application. These planners list the major factor in considering a unit as a repowering candidate as plant age: they identify plants built between 1955 and 1965 as the most likely candidates. Other important factors include the following: the need to reduce operating costs; the need to perform major maintenance/replacement of the boiler; and the need to reduce emissions. Section 3 reports the results of the market assessment. Using the size and age preferences identified in the survey, a market assessment was conducted (with the aid of a power plant data base) to estimate the number and characteristics of US generating units which constitute the current, primary potential market for coal-based repowering. Nearly 250 units in the US meet the criteria determined to be the potential repowering market.

  5. Making the grid the backup: Utility applications for fuel cell power

    SciTech Connect (OSTI)

    Eklof, S.L.

    1996-12-31

    Fuel cells are recognized as a versatile power generation option and accepted component of SMUD`s ART Program. SMUD has received wide support and recognition for promoting and implementing fuel cell power plants, as well as other innovative generation, based primarily on technological factors. Current economic and technical realities in the electric generation market highlight other important factors, such as the cost involved to develop a slate of such resources. The goal now is to develop only those select quality resources most likely to become commercially viable in the near future. The challenge becomes the identification of candidate technologies with the greatest potential, and then matching the technologies with the applications that will help to make them successful. Utility participation in this development is critical so as to provide the industry with case examples of advanced technologies that can be applied in a way beneficial to both the utility and its customers. The ART resource acquisitions provide the experience base upon which to guide this selection process, and should bring about the cost reductions and reliability improvements sought.

  6. The Business Case for Fuel Cells 2014: Powering the Bottom Line for Businesses and Communities

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

    The Business Case for Fuel Cells 2014: Powering the Bottom Line for Businesses and Communities ii Authors and Acknowledgements This report was written and compiled by Sandra Curtin and Jennifer Gangi of the Breakthrough Technologies Institute (BTI) in Washington, D.C. Support was provided by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Fuel Cell Technologies Office. About This Report This report provides an overview of fuel cell installations at

  7. Horizontal cryogenic bushing for the termination of a superconducting power-transmission line

    DOE Patents [OSTI]

    Minati, K.F.; Morgan, G.H.; McNerney, A.J.; Schauer, F.

    1982-07-29

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminated the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  8. Termination for a superconducting power transmission line including a horizontal cryogenic bushing

    DOE Patents [OSTI]

    Minati, Kurt F.; Morgan, Gerry H.; McNerney, Andrew J.; Schauer, Felix

    1984-01-01

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  9. DOE Environmental Impact Statement Public Scoping Meeting on Champlain Hudson Power Express Transmission Line Project

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) is hosting seven meetings for public participation as part of its Environmental Impact Statement (EIS) preparation process pursuant to the National Environmental Policy Act (NEPA) to assess the potential environmental impacts from its proposed action of granting a Presidential permit to Champlain Hudson Power Express, Inc., to construct, operate, maintain, and connect a new electric transmission line across the U.S.- Canada border in northeastern New York.

  10. Water treatment capacity of forward osmosis systems utilizing power plant waste heat

    SciTech Connect (OSTI)

    Zhou, Xingshi; Gingerich, Daniel B.; Mauter, Meagan S.

    2015-06-11

    Forward osmosis (FO) has the potential to improve the energy efficiency of membrane-based water treatment by leveraging waste heat from steam electric power generation as the primary driving force for separation. In this study, we develop a comprehensive FO process model, consisting of membrane separation, heat recovery, and draw solute regeneration (DSR) models. We quantitatively characterize three alternative processes for DSR: distillation, steam stripping, and air stripping. We then construct a mathematical model of the distillation process for DSR that incorporates hydrodynamics, mass and heat transport resistances, and reaction kinetics, and we integrate this into a model for the full FO process. Finally, we utilize this FO process model to derive a first-order approximation of the water production capacity given the rejected heat quantity and quality available at U.S. electric power facilities. We find that the upper bound of FO water treatment capacity using low-grade heat sources at electric power facilities exceeds process water treatment demand for boiler water make-up and flue gas desulfurization wastewater systems.

  11. WARP: A modular wind power system for distributed electric utility application

    SciTech Connect (OSTI)

    Weisbrich, A.L.; Ostrow, S.L.; Padalino, J.P.

    1996-07-01

    Steady development of wind turbine technology, and the accumulation of wind farm operating experience, have resulted in the emergence of wind power as a potentially attractive source of electricity for utilities. Since wind turbines are inherently modular, with medium-sized units typically in the range of a few hundred kilowatts each, they lend themselves well to distributed generation service. A patented wind power technology, the Toroidal Accelerator Rotor Platform (TARP) Windframe, forms the basis for a proposed network-distributed, wind power plant combining electric generation and transmission. While heavily building on proven wind turbine technology, this system is projected to surpass traditional configuration windmills through a unique distribution/transmission combination, superior performance, user-friendly operation and maintenance, and high availability and reliability. Furthermore, its environmental benefits include little new land requirements, relatively attractive appearance, lower noise and EMI/TV interference, and reduced avian (bird) mortality potential. Its cost of energy is projected to be very competitive, in the range of from approximately 2{cents}/kWh to 5{cents}/kWh, depending on the wind resource.

  12. WARP{trademark}: A modular wind power system for distributed electric utility application

    SciTech Connect (OSTI)

    Weisbrich, A.L.; Ostrow, S.L.; Padalino, J.

    1995-12-31

    Steady development of wind turbine technology, and the accumulation of wind farm operating experience, have resulted in the emergence of wind power as a potentially attractive source of electricity for utilities. Since wind turbines are inherently modular, with medium-sized units typically in the range of a few hundred kW each, they lend themselves well to distributed generation service. A patented wind power technology, the Toroidal Accelerator Rotor Platform (TARP{trademark}) Windframe{trademark}, forms the basis for a proposed network-distributed, wind power plant combining electric generation and transmission. While heavily building on proven wind turbine technology, this system is projected to surpass traditional configuration windmills through a unique distribution/transmission combination, superior performance, user friendly operation and maintenance, and high availability and reliability. Furthermore, its environmental benefits include little new land requirements, relatively attractive appearance, lower noise and EMI/TV interference, and reduced avian (bird) mortality potential. Its cost of energy is projected to be very competitive, in the range of from approximately 2{cents}/kWh to 5{cents}/ kWh, depending on the wind resource.

  13. Water treatment capacity of forward osmosis systems utilizing power plant waste heat

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zhou, Xingshi; Gingerich, Daniel B.; Mauter, Meagan S.

    2015-06-11

    Forward osmosis (FO) has the potential to improve the energy efficiency of membrane-based water treatment by leveraging waste heat from steam electric power generation as the primary driving force for separation. In this study, we develop a comprehensive FO process model, consisting of membrane separation, heat recovery, and draw solute regeneration (DSR) models. We quantitatively characterize three alternative processes for DSR: distillation, steam stripping, and air stripping. We then construct a mathematical model of the distillation process for DSR that incorporates hydrodynamics, mass and heat transport resistances, and reaction kinetics, and we integrate this into a model for the fullmore » FO process. Finally, we utilize this FO process model to derive a first-order approximation of the water production capacity given the rejected heat quantity and quality available at U.S. electric power facilities. We find that the upper bound of FO water treatment capacity using low-grade heat sources at electric power facilities exceeds process water treatment demand for boiler water make-up and flue gas desulfurization wastewater systems.« less

  14. Projected Biomass Utilization for Fuels and Power in a Mature Market

    Broader source: Energy.gov [DOE]

    The U.S. biomass resource can be used several ways that provide domestic, renewable energy to users. Understanding the capacity of the biomass resource, its potential in energy markets, and the most economic utilization of biomass is important in policy development and project selection. This study analyzed the potential for biomass within markets and the competition between them. The study found that biomass has the potential to compete well in the jet fuel and gasoline markets, penetration of biomass in markets is likely to be limited by the size of the resource, and that biomass is most cost effectively used for fuels instead of power in mature markets unless carbon capture and sequestration is available and the cost of carbon is around $80/metric ton CO2e.

  15. Integrated Simulation Development and Decision Support Tool-Set for Utility Market and Distributed Solar Power Generation Electricore, Inc.

    SciTech Connect (OSTI)

    Daye, Tony

    2013-09-30

    This project will enable utilities to develop long-term strategic plans that integrate high levels of renewable energy generation, and to better plan power system operations under high renewable penetration. The program developed forecast data streams for decision support and effective integration of centralized and distributed solar power generation in utility operations. This toolset focused on real time simulation of distributed power generation within utility grids with the emphasis on potential applications in day ahead (market) and real time (reliability) utility operations. The project team developed and demonstrated methodologies for quantifying the impact of distributed solar generation on core utility operations, identified protocols for internal data communication requirements, and worked with utility personnel to adapt the new distributed generation (DG) forecasts seamlessly within existing Load and Generation procedures through a sophisticated DMS. This project supported the objectives of the SunShot Initiative and SUNRISE by enabling core utility operations to enhance their simulation capability to analyze and prepare for the impacts of high penetrations of solar on the power grid. The impact of high penetration solar PV on utility operations is not only limited to control centers, but across many core operations. Benefits of an enhanced DMS using state-of-the-art solar forecast data were demonstrated within this project and have had an immediate direct operational cost savings for Energy Marketing for Day Ahead generation commitments, Real Time Operations, Load Forecasting (at an aggregate system level for Day Ahead), Demand Response, Long term Planning (asset management), Distribution Operations, and core ancillary services as required for balancing and reliability. This provided power system operators with the necessary tools and processes to operate the grid in a reliable manner under high renewable penetration.

  16. Intelligent on-line system for cycle chemistry diagnostics in power plants

    SciTech Connect (OSTI)

    Gallanti, M.; Tomada, L. ); Tarli, R. )

    1990-01-01

    Knowledge base techniques have been exploited for building PROP, a diagnostic system devoted to on-line monitoring and diagnosis of cycle water pollution phenomena in thermal power plants. After a presentation of the motivations that led CISE and ENEL to the development of an expert system for cycle chemistry control, the paper outlines the hardware and software architecture of PROP, and the characteristics of the operator interface. Then the PROP performance in the field test phase and during the first period of operation at the Fusina power plant are presented. In this paper, the authors discuss the general problem of expert system life cycle. Finally the verification and validation approach adopted in the PROP project is described.

  17. High power microwave beam steering based on gyromagnetic nonlinear transmission lines

    SciTech Connect (OSTI)

    Romanchenko, I. V. Rostov, V. V.; Gunin, A. V.; Konev, V. Yu.

    2015-06-07

    We demonstrate electronically controlled beam steering by high power RF pulses produced by two gyromagnetic nonlinear transmission lines (NLTLs) connected to a one high voltage driver. Each NLTL is capable of producing several ns RF pulses with peak power from 50 to 700 MW (6% standard deviation) at frequencies from 0.5 to 1.7 GHz (1% standard deviation) with 100 Hz repetition rate. Using a helix antenna allows irradiating of RF pulses with almost circular polarization and 350 MW maximum peak power, which corresponds to 350 kV effective potential of radiation. At the installation of two identical channels, we demonstrate the possibility of beam steering within ±15° in the horizontal plane by coherent RF pulses with circular polarization at 1.0 GHz center frequency. Fourfold increase in the power flux density for in-phase irradiation of RF pulses is confirmed by comparison with one-channel operation.

  18. Utility-Scale Silicon Carbide Semiconductor: Monolithic Silicon Carbide Anode Switched Thyristor for Medium Voltage Power Conversion

    SciTech Connect (OSTI)

    2010-09-01

    ADEPT Project: GeneSiC is developing an advanced silicon-carbide (SiC)-based semiconductor called an anode-switched thyristor. This low-cost, compact SiC semiconductor conducts higher levels of electrical energy with better precision than traditional silicon semiconductors. This efficiency will enable a dramatic reduction in the size, weight, and volume of the power converters and electronic devices it's used in.GeneSiC is developing its SiC-based semiconductor for utility-scale power converters. Traditional silicon semiconductors can't process the high voltages that utility-scale power distribution requires, and they must be stacked in complicated circuits that require bulky insulation and cooling hardware. GeneSiC's semiconductors are well suited for high-power applications like large-scale renewable wind and solar energy installations.

  19. Renewable Energy Price-Stability Benefits in Utility Green Power Programs

    SciTech Connect (OSTI)

    Bird, L. A.; Cory, K. S.; Swezey, B. G.

    2008-08-01

    This paper examines utility experiences when offering the fixed-price benefits of renewable energy in green pricing programs, including the methods utilized and the impact on program participation. It focuses primarily on utility green pricing programs in states that have not undergone electric industry restructuring.

  20. Renewable Energy Price-Stability Benefits in Utility Green Power Programs. 36 pp

    SciTech Connect (OSTI)

    Bird, Lori A.; Cory, Karlynn S.; Swezey, Blair G.

    2008-08-01

    This paper examines utility experiences when offering the fixed-price benefits of renewable energy in green pricing programs, including the methods utilized and the impact on program participation. It focuses primarily on utility green pricing programs in states that have not undergone electric industry restructuring.

  1. Ocean Power Technologies (TRL 5 6 System) - PB500, 500 kW Utility...

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

    More Documents & Publications Advanced, High Power, Next Scale, Wave Energy Conversion Device Ocean Power Technologies (TRL 7 8 System) - Reedsport PB150 Deployment and Ocean Test ...

  2. $18.8 Million Award for Power Systems Engineering Research Center Continues Collaboration of 13 Universities and 35 Utilities for Electric Power Research, Building the Nation's Energy Workforce

    Broader source: Energy.gov [DOE]

    The Department of Energy awarded a cooperative agreement on January 16, 2009, to the Arizona State University (ASU) Board of Regents to operate the Power Systems Engineering Research Center (PSERC). PSERC is a collaboration of 13 universities with 35 electricity industry member organizations including utilities, transmission companies, vendors and research organizations.

  3. TriUtils Trilinos Utilities Package

    Energy Science and Technology Software Center (OSTI)

    2011-09-26

    TriUtils is a package of utilities for other Trilinos packages. TriUtils contains utilities to perform common operations such as command line parsing, and input file reading.

  4. Line-focus solar central power system, phase I. Subsystem experiment: receiver heat transfer

    SciTech Connect (OSTI)

    Slemmons, A J

    1980-04-01

    Wind-tunnel tests confirmed that heat losses due to natural convection are negligible in the line-focus, solar-powered receiver. Anomalies in the forced-convection tests prevented definitive conclusions regarding the more important forced convection. Flow-visualization tests using a water table show much lower velocities inside the receiver cavity than outside, supporting the supposition that the forced-heat transfer should be less than that from a standard exposed cylinder. Furthermore, the water-table tests showed ways to decrease the low velocities in the cavity should this be desired. Further wind-tunnel testing should be done to confirm estimates and to support advanced design. This testing can be done in standard wind tunnels since only the forced convection is of concern.

  5. On-line mechanical tube cleaning for steam electric power plants. Final report

    SciTech Connect (OSTI)

    Not Available

    1994-02-18

    In July 1991, Superior I.D. Tube Cleaners, Inc. (SIDTEC{trademark}) received a grant through the Department of Energy and the Energy Related Invention Program to conduct a long term demonstration of a proprietary technology for on-line mechanical condenser tube cleaning in thermal Power plants on open or once-through cooling water systems where the warmed condenser cooling water is discharged through a canal. The purpose of the demonstration was to confirm and establish the use of this mechanical method as an alternative to the application of chemical biocides in condenser cooling water for the control of biofouling, the growth of micro-organisms which can reduce a unit`s operating efficiency. The SIDTEC on-line mechanical tube cleaner, the Rocket{trademark}, is used to physically remove accumulated deposits on the water side of the main steam condenser, and the non-intrusive tube cleaner recovery system, the Skimmer{trademark}, is used to recover and recirculate tube cleaners. The periodic circulation of tube cleaners can maintain optimum condenser cleanliness and improve unit heat rate. Thermal power plants which discharge condenser cooling water through a canal now have a viable alternative to the chemical treatment of condenser cooling water, whether the principal foulant is biofouling, chemical scaling, silting, or a combination of the three. At prices competitive with scale inhibitors, and a fraction of competing mechanical systems, this technology is provided as a service requiring no capital investment; minimal retrofit modifications to plant structures or equipment; can be installed and maintained without a unit shutdown; does not add any restrictions in the cooling water system; and is environmentally benign.

  6. Overhead electric power transmission line jumpering system for bundles of five or more subconductors

    DOE Patents [OSTI]

    Winkelman, Paul F.

    1982-01-01

    Jumpering of electric power transmission lines at a dead end tower. Two transmission line conductor bundles each contain five or more spaced apart subconductors (5) arranged in the shape of a cylinder having a circular cross section. The ends of each bundle of subconductors are attached with insulators to a dead end tower (1). Jumpering allows the electric current to flow between the two bundles of subconductors using jumper buses, internal jumper conductors, and external jumper conductors. One or more current collecting jumper buses (37) are located inside each bundle of subconductors with each jumper bus being attached to the end of a subconductor. Small-diameter internal jumper conductors (33) are located in the inherently electrically shielded area inside each bundle of subconductors with each subconductor (except ones having an attached jumper bus) having one internal jumper conductor connected between that subconductor's end and a jumper bus. Large-diameter external jumper conductors (9) are located outside each bundle of subconductors with one or more external jumper conductors being connected between the jumper buses in one bundle of subconductors and the jumper buses in the other bundle.

  7. PB500, 500kW Utility-Scale PowerBuoy Project

    SciTech Connect (OSTI)

    Hart, Philip R.

    2011-09-27

    This presentation from the Water Peer Review highlights one of the program's marine and hyrokinetics device development projects in which Ocean Power Technologies will advance the current PowerBuoy design for commercial readiness.

  8. NIOSH alert: Request for assistance in preventing electrocutions of crane operators and crew members working near overhead power lines

    SciTech Connect (OSTI)

    1995-05-01

    In this alert, NIOSH warned that crane operators and crew members may be electrocuted when working near overhead power lines. Five cases were described which resulted in six electrocutions. Case 1 involved a 29 year old who pushed the crane cable on a 1 yard cement bucket into a 7,200 volt power line. Case 2 involved a 33 year old well driller who was electrocuted when a metal pipe lifted by a truck mounted crane contacted a 12,000 volt overhead power line. The third case involved a 24 year old forman for a telecommunications company who was electrocuted when he grabbed the door handle of a truck mounted crane whose boom was in contact with a 7,200 volt overhead power line. Case 4 involved a 37 year old construction laborer electrocuted while pulling a wire rope attached to a crane cable toward a load. The fifth case involved a 20 year old male truck driver and his 70 year old male employer who were electrocuted when the boom of a truck mounted crane contacted a 7,200 volt conductor of an overhead power line.

  9. Novel Supercritical Carbon Dioxide Power Cycle Utilizing Pressured Oxy-combustion in Conjunction with Cryogenic Compression

    SciTech Connect (OSTI)

    Brun, Klaus; McClung, Aaron; Davis, John

    2014-03-31

    The team of Southwest Research Institute® (SwRI) and Thar Energy LLC (Thar) applied technology engineering and economic analysis to evaluate two advanced oxy-combustion power cycles, the Cryogenic Pressurized Oxy-combustion Cycle (CPOC), and the Supercritical Oxy-combustion Cycle. This assessment evaluated the performance and economic cost of the two proposed cycles with carbon capture, and included a technology gap analysis of the proposed technologies to determine the technology readiness level of the cycle and the cycle components. The results of the engineering and economic analysis and the technology gap analysis were used to identify the next steps along the technology development roadmap for the selected cycle. The project objectives, as outlined in the FOA, were 90% CO{sub 2} removal at no more than a 35% increase in cost of electricity (COE) as compared to a Supercritical Pulverized Coal Plant without CO{sub 2} capture. The supercritical oxy-combustion power cycle with 99% carbon capture achieves a COE of $121/MWe. This revised COE represents a 21% reduction in cost as compared to supercritical steam with 90% carbon capture ($137/MWe). However, this represents a 49% increase in the COE over supercritical steam without carbon capture ($80.95/MWe), exceeding the 35% target. The supercritical oxy-combustion cycle with 99% carbon capture achieved a 37.9% HHV plant efficiency (39.3% LHV plant efficiency), when coupling a supercritical oxy-combustion thermal loop to an indirect supercritical CO{sub 2} (sCO{sub 2}) power block. In this configuration, the power block achieved 48% thermal efficiency for turbine inlet conditions of 650°C and 290 atm. Power block efficiencies near 60% are feasible with higher turbine inlet temperatures, however a design tradeoff to limit firing temperature to 650°C was made in order to use austenitic stainless steels for the high temperature pressure vessels and piping and to minimize the need for advanced turbomachinery features

  10. The integration of renewable energy sources into electric power distribution systems. Volume 2, Utility case assessments

    SciTech Connect (OSTI)

    Zaininger, H.W.; Ellis, P.R.; Schaefer, J.C.

    1994-06-01

    Electric utility distribution system impacts associated with the integration of renewable energy sources such as photovoltaics (PV) and wind turbines (WT) are considered in this project. The impacts are expected to vary from site to site according to the following characteristics: (1) The local solar insolation and/or wind characteristics; (2) renewable energy source penetration level; (3) whether battery or other energy storage systems are applied; and (4) local utility distribution design standards and planning practices. Small, distributed renewable energy sources are connected to the utility distribution system like other, similar kW- and MW-scale equipment and loads. Residential applications are expected to be connected to single-phase 120/240-V secondaries. Larger kw-scale applications may be connected to three-phase secondaries, and larger hundred-kW and MW-scale applications, such as MW-scale windfarms or PV plants, may be connected to electric utility primary systems via customer-owned primary and secondary collection systems. Small, distributed renewable energy sources installed on utility distribution systems will also produce nonsite-specific utility generation system benefits such as energy and capacity displacement benefits, in addition to the local site-specific distribution system benefits. Although generation system benefits are not site-specific, they are utility-specific, and they vary significantly among utilities in different regions. In addition, transmission system benefits, environmental benefits and other benefits may apply. These benefits also vary significantly among utilities and regions. Seven utility case studies considering PV, WT, and battery storage were conducted to identify a range of potential renewable energy source distribution system applications.

  11. Combined Heat and Power: Connecting the Gap between Markets and Utility Interconnection and Tariff Practices (Part I)

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

    Combined Heat and Power: Connecting the Gap between Markets and Utility Interconnection and Tariff Practices (Part I) Susanne Brooks, Brent Elswick, and R. Neal Elliott March 2006 Report Number IE062 ©American Council for an Energy-Efficient Economy 1001 Connecticut Avenue, NW, Suite 801, Washington, D.C. 20036 (202) 429-8873 phone, (202) 429-2248 fax, http://aceee.org Web site CHP: Connecting the Gap, ACEEE Contents

  12. Developing Effective Continuous On-Line Monitoring Technologies to Manage Service Degradation of Nuclear Power Plants

    SciTech Connect (OSTI)

    Meyer, Ryan M.; Ramuhalli, Pradeep; Bond, Leonard J.; Cumblidge, Stephen E.

    2011-09-30

    Recently, there has been increased interest in using prognostics (i.e, remaining useful life (RUL) prediction) for managing and mitigating aging effects in service-degraded passive nuclear power reactor components. A vital part of this philosophy is the development of tools for detecting and monitoring service-induced degradation. Experience with in-service degradation has shown that rapidly-growing cracks, including several varieties of stress corrosion cracks (SCCs), can grow through a pipe in less than one fuel outage cycle after they initiate. Periodic inspection has limited effectiveness at detecting and managing such degradation requiring a more versatile monitoring philosophy. Acoustic emission testing (AET) and guided wave ultrasonic testing (GUT) are related technologies with potential for on-line monitoring applications. However, harsh operating conditions within NPPs inhibit the widespread implementation of both technologies. For AET, another hurdle is the attenuation of passive degradation signals as they travel though large components, relegating AET to targeted applications. GUT is further hindered by the complexity of GUT signatures limiting its application to the inspection of simple components. The development of sensors that are robust and inexpensive is key to expanding the use of AET and GUT for degradation monitoring in NPPs and improving overall effectiveness. Meanwhile, the effectiveness of AET and GUT in NPPs can be enhanced through thoughtful application of tandem AET-GUT techniques.

  13. Amended Application for Presidential Permit OE Docket No. PP-398 Minnesota Power- Great Northern Transmission Line: Federal Register Notice, Volume 79, No. 222- Nov. 18, 2014

    Broader source: Energy.gov [DOE]

    Minnesota Power, Great Northern Transmission Line has submitted an amended application for a Presidential Permit to construct, operate, maintain and connect an electric transmission line across the United States border with Canada.

  14. ANUEADflM-31 Electric Power High-Voltage Transmission Lines:

    Office of Scientific and Technical Information (OSTI)

    ... design options to reduce human exposure to EMFs from high-voltage transmission lines. ... assumed for the 345-kV designs: 150-R rights-of-way for overhead lines, 50-ft ...

  15. Utilizing Load Response for Wind and Solar Integration and Power System Reliability

    SciTech Connect (OSTI)

    Milligan, M.; Kirby, B.

    2010-07-01

    Responsive load is still the most underutilized reliability resource in North America. This paper examines the characteristics of concern to the power system, the renewables, and to the loads.

  16. Utility to Purchase Low-Carbon Power from Innovative Clean Coal...

    Broader source: Energy.gov (indexed) [DOE]

    Carbon emissions for this plant will be... less than 10 percent of a conventional coal plant ... petroleum, and natural gas, with coal-fired power plants accounting for approximately ...

  17. Lunar electric power systems utilizing the SP-100 reactor coupled to dynamic conversion systems. Final report

    SciTech Connect (OSTI)

    Harty, R.B.; Durand, R.E.

    1993-03-01

    An integration study was performed by Rocketdyne under contract to NASA-LeRC. The study was concerned with coupling an SP-0100 reactor to either a Brayton or Stirling power conversion system. The application was for a surface power system to supply power requirements to a lunar base. A power level of 550 kWe was selected based on the NASA Space Exploration Initiative 90-day study. Reliability studies were initially performed to determine optimum power conversion redundancy. This study resulted in selecting three operating engines and one stand-by unit. Integration design studies indicated that either the Brayton or Stirling power conversion systems could be integrated with the PS-100 reactor. The Stirling system had an integration advantage because of smaller piping size and fewer components. The Stirling engine, however, is more complex and heavier than the Brayton rotating unit, which tends to off-set the Stirling integration advantage. From a performance consideration, the Brayton had a 9 percent mass advantage, and the Stirling had a 50 percent radiator advantage.

  18. CO{sub 2}-mitigation measures through reduction of fossil fuel burning in power utilities. Which road to go?

    SciTech Connect (OSTI)

    Kaupp, A.

    1996-12-31

    Five conditions, at minimum, should be examined in the comparative analysis of CO{sub 2}-mitigation options for the power sector. Under the continuing constraint of scarce financial resources for any private or public investment in the power sector, the following combination of requirements characterise a successful CO{sub 2}-mitigation project: (1) Financial attractiveness for private or public investors. (2) Low, or even negative, long range marginal costs per ton of `CO{sub 2} saved`. (3) High impact on CO{sub 2}-mitigation, which indicates a large market potential for the measure. (4) The number of individual investments required to achieve the impact is relatively small. In other words, logistical difficulties in project implementation are minimised. (5) The projects are `socially fair` and have minimal negative impact on any segment of the society. This paper deals with options to reduce carbonaceous fuel burning in the power sector. Part I explains how projects should be selected and classified. Part II describes the technical options. Since reduction of carbonaceous fuel burning may be achieved through Demand Side Management (DSM) and Supply Side Management (SSM) both are treated. Within the context of this paper SSM does not mean to expand power supply as demand grows. It means to economically generate and distribute power as efficiently as possible. In too many instances DSM has degenerated into efficient lighting programs and utility managed incentives and rebate programs. To what extent this is a desirable situation for utilities in Developing Countries that face totally different problems as their counterparts in highly industrialised countries remains to be seen. Which road to go is the topic of this paper.

  19. Radiological Assessment for the Removal of Legacy BPA Power Lines that Cross the Hanford Site

    SciTech Connect (OSTI)

    Millsap, William J.; Brush, Daniel J.

    2013-11-13

    This paper discusses some radiological field monitoring and assessment methods used to assess the components of an old electrical power transmission line that ran across the Hanford Site between the production reactors area (100 Area) and the chemical processing area (200 Area). This task was complicated by the presence of radon daughters -- both beta and alpha emitters -- residing on the surfaces, particularly on the surfaces of weathered metals and metals that had been electrically-charged. In many cases, these activities were high compared to the DOE Surface Contamination Guidelines, which were used as guides for the assessment. These methods included the use of the Toulmin model of argument, represented using Toulmin diagrams, to represent the combined force of several strands of evidences, rather than a single measurement of activity, to demonstrate beyond a reasonable doubt that no or very little Hanford activity was present and mixed with the natural activity. A number of forms of evidence were used: the overall chance of Hanford contamination; measurements of removable activity, beta and alpha; 1-minute scaler counts of total surface activity, beta and alpha, using "background makers"; the beta activity to alpha activity ratios; measured contamination on nearby components; NaI gamma spectral measurements to compare uncontaminated and potentially-contaminated spectra, as well as measurements for the sentinel radionuclides, Am- 241 and Cs-137 on conducting wire; comparative statistical analyses; and in-situ measurements of alpha spectra on conducting wire showing that the alpha activity was natural Po-210, as well as to compare uncontaminated and potentially-contaminated spectra.

  20. Bonneville upgrades lines

    SciTech Connect (OSTI)

    Not Available

    1993-08-30

    A stretch of Bonneville Power Administration transmission line between Spokane and the Grand Coulee Dam is an 82-mile bottleneck as it is the last 115-kv section of [open quotes]road[close quotes] along a 500-kv transmission [open quotes]highway[close quotes]. Soon the administration will change all that. A number of independent and utility powerplants have been proposed in Idaho, Montana and the Spokane, Wash., area during the 1990s. As the operators will need to move their power, Bonneville is planning to build a $144-million, 500-kv line to upgrade the 115-kv section. The agency is planning to use its existing right-of-way.

  1. Environmental release of mercury from coal utilization by-products: will new mercury controls at power plants make a difference?

    SciTech Connect (OSTI)

    Aljoe, W.W.; Feeley, T.J., III; Brickett, L.A.; Schroeder, K.T.; Murphy, J.T. [National Energy Technology Laboratory, Pittsburgh, PA (US)

    2005-09-30

    The US Department of Energy's National Energy Technology Laboratory (DOE/NETL) uses the term coal utilization by-products (CUBs) to describe the solid materials produced by the combustion or gasification of coal. The following general observations can be drawn from results of field tests that have been carried out thus far to determine whether new technologies for mercury emission control at coal power plants will affect the release of mercury from CUBs. There appears to be only minimal potential mercury release to the environment in typical disposal or utilization application for CUBs generated using ACI control technologies. There appears to be only minimal mercury release to the environment for CUBs generated using wet FGD control technologies. The amount of mercury leached from CUBs samples tested is significantly lower than the federal drinking water standards and water quality criteria for the protection of aquatic life. 3 figs., 2 tabs.

  2. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third...

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

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed...

  3. Solar cogeneration: Cimarron River station, Central Telephone and Utilities-Western Power

    SciTech Connect (OSTI)

    Harder, J.E.

    1981-04-01

    The site-specific conceptual design progress is described for a solar central receiver cogeneration facility at a Kansas utility. The process is described which led to the selection of the preferred solar cogeneration facility. The status of the conceptual design is presented. The evaluation of system performance is described. A test program is described that is to determine the magnitude of impact that local environmental factors have on collector system performance and to measure the direct normal insolation at the cogeneration facility site. The system specification is appended. (LEW)

  4. Life Cycle Greenhouse Gas Emissions of Utility-Scale Wind Power: Systematic Review and Harmonization

    Broader source: Energy.gov [DOE]

    As clean energy increasingly becomes part of the national dialogue, lenders, utilities, and lawmakers need the most comprehensive and accurate information on GHG emissions from various sources of energy to inform policy, planning, and investment decisions. The National Renewable Energy Laboratory (NREL) recently led the Life Cycle Assessment (LCA) Harmonization Project, a study that gives decision makers and investors more precise estimates of life cycle GHG emissions for renewable and conventional generation, clarifying inconsistent and conflicting estimates in the published literature, and reducing uncertainty.

  5. Utility-Scale Power Tower Solar Systems: Performance Acceptance Test Guidelines

    SciTech Connect (OSTI)

    Kearney, D.

    2013-03-01

    The purpose of these Guidelines is to provide direction for conducting performance acceptance testing for large power tower solar systems that can yield results of a high level of accuracy consistent with good engineering knowledge and practice. The recommendations have been developed under a National Renewable Energy Laboratory (NREL) subcontract and reviewed by stakeholders representing concerned organizations and interests throughout the concentrating solar power (CSP) community. An earlier NREL report provided similar guidelines for parabolic trough systems. These Guidelines recommend certain methods, instrumentation, equipment operating requirements, and calculation methods. When tests are run in accordance with these Guidelines, we expect that the test results will yield a valid indication of the actual performance of the tested equipment. But these are only recommendations--to be carefully considered by the contractual parties involved in the Acceptance Tests--and we expect that modifications may be required to fit the particular characteristics of a specific project.

  6. Power-plant fly-ash utilization: a chemical processing perspective

    SciTech Connect (OSTI)

    Burnet, G.; Murtha, M.J.

    1981-01-01

    The 1976 Resource Conservation and Recovery Act (RCRA) deals with the management of solid and hazardous wastes, and encourages energy and resource recovery. Recent research has indicated that solid wastes from coal combustion, including fly ash, could be classified as hazardous under present EPA definitions. The seriousness of this possibility has been recognized and new rules for coal ash waste disposal are being considered. Ames Laboratory research on fly ash utilization as an alternative to disposal includes extraction of metals from the ash and discovery of uses for the process residues. Recovery of alumina and iron oxides by physical and chemical processing would permit large scale utilization of fly ash and help reduce dependency on imports. One of the processes investigated uses a lime-soda sinter method to form soluble aluminate compounds from mixtures of fly ash, limestone, and soda ash. The aluminates are extracted, treated to remove silicates, and precipitated: the precipitate is calcined to metallurgical grade alumina. The extract residue shows promise as a raw material for the production of Portland cement. Process economics are presented, and the effects of alumina and silica contents of the fly ash, sintering temperatures and time, and sales credits for by-products are discussed.

  7. Re-Examining first principles of regulation: NRG power marketing, LLC v. Maine public utilities Commission

    SciTech Connect (OSTI)

    Haskell, Mark R.

    2010-03-15

    Maine PUC and Morgan Stanley have resolved some of the key issues facing the energy industry. The Supreme Court has plainly and directly in both cases reaffirmed the central role that private contracts play in the energy industry and set terms to balance the need to secure long-term investment with the public interest that lies at the heart of the Federal Power Act. (author)

  8. Commercialization of coal-fired diesel engines for cogeneration and non-utility power markets

    SciTech Connect (OSTI)

    Wilson, R.P.; Rao, K.; Benedek, K.R.; Itse, D.; Parkinson, J.; Kimberley, J.; Balles, E.N.; Benson, C.E.; Smith, C.

    1992-01-01

    The primary objective of this METC project is to established practical, durable components compatible with clean coal slurry fuel and capable of low emissions. The components will be integrated into a coal power system for a 100-hr proof-of-concept test. The goal of this program is to advance the stationary coal-fueled diesel engine to the next plateau of technological readiness, and thus provide the springboard to commercialization.

  9. Commercialization of coal-fired diesel engines for cogeneration and non-utility power markets

    SciTech Connect (OSTI)

    Wilson, R.P.; Rao, K.; Benedek, K.R.; Itse, D.; Parkinson, J.; Kimberley, J.; Balles, E.N.; Benson, C.E.; Smith, C.

    1992-12-31

    The primary objective of this METC project is to established practical, durable components compatible with clean coal slurry fuel and capable of low emissions. The components will be integrated into a coal power system for a 100-hr proof-of-concept test. The goal of this program is to advance the stationary coal-fueled diesel engine to the next plateau of technological readiness, and thus provide the springboard to commercialization.

  10. Investigation of a family of power conditioners integrated into a utility grid: final report Category I

    SciTech Connect (OSTI)

    Wood, P.; Putkovich, R.P.

    1981-07-01

    A study was conducted of the requirements for and technologies applicable to power conditioning equipment in residential solar photovoltaic systems. A survey of companies known or thought to manufacture power conditioning equipment was conducted to asses the technology. Technical issues regarding ac and dc interface requirements were studied. A baseline design was selected to be a good example of existing technology which would not need significant development effort for its implementation. Alternative technologies are evaluated to determine which meet the baseline specification, and their costs and losses are evaluated. Areas in which cost improvements can be obtained are studied, and the three best candidate technologies--the current-sourced converter, the HF front end converter, and the programmed wave converter--are compared. It is concluded that the designs investigated will meet, or with slight improvement could meet, short term efficiency goals. Long term efficiency goals could be met if an isolation transformer were not required in the power conditioning equipment. None of the technologies studied can meet cost goals unless further improvements are possible. (LEW)

  11. Stark broadening for diagnostics of the electron density in non-equilibrium plasma utilizing isotope hydrogen alpha lines

    SciTech Connect (OSTI)

    Yang, Lin; Tan, Xiaohua; Wan, Xiang; Chen, Lei; Jin, Dazhi; Qian, Muyang; Li, Gongping

    2014-04-28

    Two Stark broadening parameters including FWHM (full width at half maximum) and FWHA (full width at half area) of isotope hydrogen alpha lines are simultaneously introduced to determine the electron density of a pulsed vacuum arc jet. To estimate the gas temperature, the rotational temperature of the C{sub 2} Swan system is fit to 2500??100?K. A modified Boltzmann-plot method with b{sub i}-factor is introduced to determine the modified electron temperature. The comparison between results of atomic and ionic lines indicates the jet is in partial local thermodynamic equilibrium and the electron temperature is close to 13?000??400?K. Based on the computational results of Gig-Card calculation, a simple and precise interpolation algorithm for the discrete-points tables can be constructed to obtain the traditional n{sub e}-T{sub e} diagnostic maps of two Stark broadening parameters. The results from FWHA formula by the direct use of FWHM?=?FWHA and these from the diagnostic map are different. It can be attributed to the imprecise FWHA formula form and the deviation between FWHM and FWHA. The variation of the reduced mass pair due to the non-equilibrium effect contributes to the difference of the results derived from two hydrogen isotope alpha lines. Based on the Stark broadening analysis in this work, a corrected method is set up to determine n{sub e} of (1.10??0.08)??10{sup 21}?m{sup ?3}, the reference reduced mass ?{sub 0} pair of (3.30??0.82 and 1.65??0.41), and the ion kinetic temperature of 7900??1800?K.

  12. Fast-wave Power Flow Along SOL Field Lines In NSTX nd The Associated Power Deposition Profile Across The SOL In Front Of The Antenna

    SciTech Connect (OSTI)

    Perkins, Roy

    2013-06-21

    Fast-wave heating and current drive efficiencies can be reduced by a number of processes in the vicinity of the antenna and in the scrape off layer (SOL). On NSTX from around 25% to more than 60% of the high-harmonic fast-wave power can be lost to the SOL regions, and a large part of this lost power flows along SOL magnetic field lines and is deposited in bright spirals on the divertor floor and ceiling. We show that field-line mapping matches the location of heat deposition on the lower divertor, albeit with a portion of the heat outside of the predictions. The field-line mapping can then be used to partially reconstruct the profile of lost fast-wave power at the midplane in front of the antenna, and the losses peak close to the last closed flux surface (LCFS) as well as the antenna. This profile suggests a radial standing-wave pattern formed by fast-wave propagation in the SOL, and this hypothesis will be tested on NSTX-U. Advanced RF codes must reproduce these results so that such codes can be used to understand this edge loss and to minimize RF heat deposition and erosion in the divertor region on ITER.

  13. Electric utility system planning studies for OTEC power integration. Final report

    SciTech Connect (OSTI)

    1980-11-30

    Florida Power Corporation (FPC) conducted an evaluation of the possible integration of OTEC into the FPC system. Existing system planning procedures, assumptions, and corporate financial criteria for planning new generating capacity were used without modification. A baseline configuration for an OTEC plant was developed for review with standard planning procedures. The OTEC plant characteristics and costs were incorporated in considerable detail. These basic inputs were examined using the FPC system planning methods. It was found that with the initial set of conditions, OTEC would not be economically viable. Using the same system planning procedures, a number of adjustments were made to the key study assumptions. It was found that two considerations dominate the analysis; the assumed rate of fuel cost escalation, and the projected capital cost of the OTEC plant. The analysis produced a parametric curve: on one hand, if fuel costs were to escalate at a rate greater than assumed (12% vs the assumed 5% for coal), and if no change were made to the OTEC input assumptions, the basic economic competitive criteria would be equivalent to the principal alternative, coal fueled plants. Conversely, if the projected cost of the OTEC plant were to be reduced from the assumed $2256/kW to $1450/kW, the economic competitiveness criterion would be satisfied. After corporate financial analysis, it was found that even if the cost competitive criterion were to be reached, the plan including OTEC could not be financed by Florida Power Corporation. Since, under the existing set of conditions for financing new plant capital requirements, FPC could not construct an OTEC plant, some other means of ownership would be necessary to integrate OTEC into the FPC system. An alternative such as a third party owning the plant and selling power to FPC, might prove attractive. (WHK)

  14. THROUGH-THE-EARTH (TTE) COMMUNICATIONS SYSTEM AND THE IN-MINE POWER LINE (IMPL) COMMUNICATIONS SYSTEM

    SciTech Connect (OSTI)

    Zvi H. Meiksin

    2002-01-01

    Work has progressed on both subsystems: the Through-the-Earth (TTE) Communications system and the In-Mine Power Line (IMPL) Communications system. The TTE system: The system was fabricated and repackaged as an industrial product enclosed in a commercial rugged, waterproof housing suitable for installation in mines. Features were added to the system to appeal to the preferences of different mine managers. Arrangements were made with NIOSH to install the system in the Lake Lynn underground mine for evaluation and demonstration to potential users. The IMPL system: Voice compression was successfully implemented and incorporated into the laboratory model. Compressed voice was transmitted through a power line, expanded at the receiving end, and received with high clarity.

  15. Medical devices utilizing optical fibers for simultaneous power, communications and control

    DOE Patents [OSTI]

    Fitch, Joseph P.; Matthews, Dennis L.; Hagans, Karla G.; Lee, Abraham P.; Krulevitch, Peter; Benett, William J.; Clough, Robert E.; DaSilva, Luiz B.; Celliers, Peter M.

    2003-06-10

    A medical device is constructed in the basic form of a catheter having a distal end for insertion into and manipulation within a body and a proximal end providing for a user to control the manipulation of the distal end within the body. A fiberoptic cable is disposed within the catheter and having a distal end proximate to the distal end of the catheter and a proximal end for external coupling of laser light energy. A laser-light-to-mechanical-power converter is connected to receive light from the distal end of the fiber optic cable and may include a photo-voltaic cell and an electromechanical motor or a heat-sensitive photo-thermal material. An electronic sensor is connected to receive electrical power from said distal end of the fiberoptic cable and is connected to provide signal information about a particular physical environment and communicated externally through the fiberoptic cable to the proximal end thereof. A mechanical sensor is attached to the distal end of the fiberoptic cable and connected to provide light signal information about a particular physical environment and communicated externally through the fiberoptic cable.

  16. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report (Report and Appendices)

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-06-01

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses.

  17. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third...

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

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural ...

  18. The Business Case for Fuel Cells 2014: Powering the Bottom Line...

    Office of Environmental Management (EM)

    These include wastewater treatment plants, government buildings, universities, military bases, hospitals, and other sites. The Business Case for Fuel Cells 2014: Powering the ...

  19. ANUEADflM-31 Electric Power High-Voltage Transmission Lines:

    Office of Scientific and Technical Information (OSTI)

    ......... 42 26 Underground Configuration for 230-kV ac ... Empire State Electric Energy Research .Gorp. Energetics, Inc. Florida Electric Power ...

  20. Transportation Energy Futures Series: Projected Biomass Utilization for Fuels and Power in a Mature Market

    SciTech Connect (OSTI)

    Ruth, M.; Mai, T.; Newes, E.; Aden, A.; Warner, E.; Uriarte, C.; Inman, D.; Simpkins, T.; Argo, A.

    2013-03-01

    The viability of biomass as transportation fuel depends upon the allocation of limited resources for fuel, power, and products. By focusing on mature markets, this report identifies how biomass is projected to be most economically used in the long term and the implications for greenhouse gas (GHG) emissions and petroleum use. In order to better understand competition for biomass between these markets and the potential for biofuel as a market-scale alternative to petroleum-based fuels, this report presents results of a micro-economic analysis conducted using the Biomass Allocation and Supply Equilibrium (BASE) modeling tool. The findings indicate that biofuels can outcompete biopower for feedstocks in mature markets if research and development targets are met. The BASE tool was developed for this project to analyze the impact of multiple biomass demand areas on mature energy markets. The model includes domestic supply curves for lignocellulosic biomass resources, corn for ethanol and butanol production, soybeans for biodiesel, and algae for diesel. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  1. Transportation Energy Futures Series. Projected Biomass Utilization for Fuels and Power in a Mature Market

    SciTech Connect (OSTI)

    Ruth, M.; Mai, T.; Newes, E.; Aden, A.; Warner, E.; Uriarte, C.; Inman, D.; Simpkins, T.; Argo, A.

    2013-03-01

    The viability of biomass as transportation fuel depends upon the allocation of limited resources for fuel, power, and products. By focusing on mature markets, this report identifies how biomass is projected to be most economically used in the long term and the implications for greenhouse gas (GHG) emissions and petroleum use. In order to better understand competition for biomass between these markets and the potential for biofuel as a market-scale alternative to petroleum-based fuels, this report presents results of a micro-economic analysis conducted using the Biomass Allocation and Supply Equilibrium (BASE) modeling tool. The findings indicate that biofuels can outcompete biopower for feedstocks in mature markets if research and development targets are met. The BASE tool was developed for this project to analyze the impact of multiple biomass demand areas on mature energy markets. The model includes domestic supply curves for lignocellulosic biomass resources, corn for ethanol and butanol production, soybeans for biodiesel, and algae for diesel. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  2. Cogeneration and Small Power Production Quarterly Report to the California Public Utilities Commission First Quarter 1984

    SciTech Connect (OSTI)

    1984-01-01

    At the end of the First Quarter of 1984, the number of signed contracts and letter agreements for cogeneration and small power production projects was 322, with a total estimated nominal capacity of 2,643 MW. Of these totals, 215 projects, capable of producing 640 MW, are operational. A map indicating the location of operational facilities under contract with PG and E is provided. Developers of cogeneration, solid waste, or biomass projects had signed 110 contracts with a potential of 1,467 MW. In total, 114 contracts and letter agreements had been signed with projects capable of producing 1,508 MW. PG and E also had under active discussion 35 cogeneration projects that could generate a total of 425 MW to 467 MW, and 11 solid waste or biomass projects with a potential of 94 MW to 114 MW. One contract had been signed for a geothermal project, capable of producing 80 MW. There were 7 solar projects with signed contracts and a potential of 37 MW, as well as 5 solar projects under active discussion for 31 MW. Wind farm projects under contract numbered 32, with a generating capability of 848 MW. Also, discussions were being conducted with 18 wind farm projects, totaling 490 MW. There were 101 wind projects of 100 kW or less with signed contracts and a potential of 1 MW, as well as 6 other small wind projects under active discussion. There were 64 hydroelectric projects with signed contracts and a potential of 148 MW, as well as 75 projects under active discussion for 316 MW. In addition, there were 31 hydroelectric projects, with a nominal capacity of 187 MW, that Pg and E was planning to construct.

  3. Cogeneration and Small Power Production Quarterly Report to the California Public Utilities Commission Fourth Quarter 1983

    SciTech Connect (OSTI)

    1983-01-01

    At the end of 1983, the number of signed contracts and letter agreements for cogeneration and small power production projects was 305, with a total estimated nominal capacity of 2,389 MW. Of these totals, 202 projects, capable of producing 566 MW, are operational (Table A). A map indicating the location of operational facilities under contract with PG and E is provided as Figure A. Developers of cogeneration, solid waste, or biomass projects had signed 101 contracts with a potential of 1,408 MW. In total, 106 contracts and letter agreements had been signed with projects capable of producing 1,479 MW. PG and E also had under active discussion 29 cogeneration projects that could generate a total of 402 MW to 444 MW, and 13 solid waste or biomass projects with a potential of 84 MW to 89 MW. One contract had been signed for a geothermal project, capable of producing 80 MW. There were 7 solar projects with signed contracts and a potential of 37 MW, as well as 3 solar projects under active discussion for 31 MW. Wind farm projects under contract numbered 28, with a generating capability of 618 MW. Also, discussions were being conducted with 14 wind farm projects, totaling 365 MW. There were 100 wind projects of 100 kW or less with signed contracts and a potential of 1 MW, as well as 8 other small wind projects under active discussion. There were 59 hydroelectric projects with signed contracts and a potential of 146 MW, as well as 72 projects under active discussion for 169 MW. In addition, there were 31 hydroelectric projects, with a nominal capacity of 185 MW, that PG and E was planning to construct. Table B displays the above information. In tabular form, in Appendix A, are status reports of the projects as of December 31, 1983.

  4. Electric and magnetic field exposures for people living near a 735-Kilovolt power line

    SciTech Connect (OSTI)

    Levallois, P.; Gauvin, D.; St. Laurent, J.

    1995-09-01

    The purpose of this study was to assess the effect of a 735-kV transmission line on the electric and magnetic field exposures of people living at the edge of the line`s right of way. Exposure of 18 adults, mostly white-collar workers, living in different bungalows located 190-240 feet from the line (exposed subjects) was compared to that of 17 adults living in similar residences far away from any transmission line. Each subject carried a Positron meter for 24 hr during 1 workday, which measured 60-Hz electric and magnetic fields every minute. All measurements were carried out in parallel for exposed and unexposed subjects during the same weeks between September and December. During measurements the average loading on the line varied between 600 and 1100 A. The average magnetic field intensity while at home was 4.4 times higher among exposed subjects than unexposed (7.1 versus 1.6 Mg, p=0.0001) and 6.2 times higher when considering only the sleeping period (6.8 versus 1.1 mG, p=0.0001). Based on the 24-hr measurement, average magnetic field exposure was three times higher among the exposed was positively correlated with the loading on the line (r=0.8, p+0.001). Percentage of time above a magnetic field threshold F(2 mG or 7.8 mG) was a good indicator to distinguish the two types of exposure. Percentage of time above 20 V/m was significantly different, but percentage of time above 78 V/m was rare and comparable for the two groups. Variability of exposure was very low. This study demonstrates that a 735-kV line contributes significantly to residential 60-Hz magnetic field exposure and, to a lesser extent, electric fields for people living at the edge of the right way. Because of the limited size of our sample, caution is recommended before generalizing these results. Nevertheless, due to the uncertainty on the risks associated with such an unusual high residential exposure, research is needed on its possible effects. 30 refs., 1 fig., 7 tabs.

  5. Cogeneration and Small Power Production Quarterly Report to the California Public Utilities Commission. Second Quarter 1984

    SciTech Connect (OSTI)

    1984-01-01

    At the end of the Second Quarter of 1984, the number of signed contracts and letter agreements for cogeneration and small power production projects was 334, with total estimated nominal capacity of 2,876 MW. Of these totals, 232 projects, capable of producing 678 MW, are operational (Table A). A map indicating the location of operational facilities under contract with PG and E is provided as Figure A. Developers of cogeneration projects had signed 80 contracts with a potential of 1,161 MW. Thirty-three contracts had been signed for solid waste/biomass projects for a total of 298 MW. In total, 118 contracts and letter agreements had been signed with cogeneration, solid waste, and biomass projects capable of producing 1,545 MW. PG and E also had under active discussion 46 cogeneration projects that could generate a total of 688 MW to 770 MW, and 13 solid waste or biomass projects with a potential of 119 MW to 139 MW. One contract had been signed for a geothermal project, capable of producing 80 MW. Two geothermal projects were under active discussion for a total of 2 MW. There were 8 solar projects with signed contracts and a potential of 37 MW, as well as 4 solar projects under active discussion for 31 MW. Wind farm projects under contract numbered 34, with a generating capability of 1,042 MW, Also, discussions were being conducted with 23 wind farm projects, totaling 597 MW. There were 100 wind projects of 100 kW or less with signed contracts and a potential of 1 MW, as well as 7 other small wind projects under active discussion. There were 71 hydroelectric projects with signed contracts and a potential of 151 MW, as well as 76 projects under active discussion for 505 MW. In addition, there were 18 hydroelectric projects, with a nominal capacity of 193 MW, that PG and E was planning to construct. Table B displays the above information. Appendix A displays in tabular form the status reports of the projects as of June 30, 1984.

  6. Low-Cost High-Concentration Photovoltaic Systems for Utility Power Generation

    SciTech Connect (OSTI)

    McConnell, R.; Garboushian, V.; Gordon, R.; Dutra, D.; Kinsey, G.; Geer, S.; Gomez, H.; Cameron, C.

    2012-03-31

    Under DOE's Technology Pathway Partnership (TPP) program, Amonix, Inc. developed a new generation of high-concentration photovoltaic systems using multijunction technology and established the manufacturing capacity needed to supply multi-megawatt power plants buing using the new Amonix 7700-series solar energy systems. For this effort, Amonix Collaborated with a variety of suppliers and partners to complete project tasks. Subcontractors included: Evonik/Cyro; Hitek; the National Renewable Energy Laboratory (NREL); Raytech; Spectrolab; UL; University of Nevada, Las Vegas; and TUV Rheinland PTL. The Amonix TPP tasks included: Task 1: Multijunction Cell Optimization for Field Operation, Task 2: Fresnel Lens R&D, Task 3: Cell Package Design & Production, Task 4: Standards Compliance and Reliability Testing, Task 5: Receiver Plate Production, Task 6: MegaModule Performance, Task 7: MegaModule Cost Reduction, Task 8: Factory Setup and MegaModule Production, Task 9: Tracker and Tracking Controller, Task 10: Installation and Balance of System (BOS), Task 11: Field Testing, and Task 12: Solar Advisor Modeling and Market Analysis. Amonix's TPP addressed nearly the complete PV value chain from epitaxial layer design and wafer processing through system design, manufacturing, deployment and O&M. Amonix has made progress toward achieving these reduced costs through the development of its 28%+ efficient MegaModule, reduced manufacturing and installation cost through design for manufacturing and assembly, automated manufacturing processes, and reduced O&M costs. Program highlights include: (1) Optimized multijunction cell and cell package design to improve performance by > 10%; (2) Updated lens design provided 7% increased performance and higher concentration; (3) 28.7% DC STC MegaModule efficiency achieved in Phase II exceeded Phase III performance goal; (4) New 16' focal length MegaModule achieved target materials and manufacturing cost reduction; (5) Designed and placed into

  7. Tracking the Reliability of the U.S. Electric Power System: An Assessment of Publicly Available Information Reported to State Public Utility Commissions

    SciTech Connect (OSTI)

    LaCommare, Kristina H.; Eto, Joseph H.

    2008-10-10

    Large blackouts, such as the August 14-15, 2003 blackout in the northeasternUnited States and Canada, focus attention on the importance of reliable electric service. As public and private efforts are undertaken to improve reliability and prevent power interruptions, it is appropriate to assess their effectiveness. Measures of reliability, such as the frequency and duration of power interruptions, have been reported by electric utilities to state public utility commissions for many years. This study examines current state and utility practices for collecting and reporting electricity reliability information and discusses challenges that arise in assessing reliability because of differences among these practices. The study is based primarily on reliability information for 2006 reported by 123 utilities to 37 state public utility commissions.

  8. Conceptual design of the solar repowering system for West Texas Utilities Company Paint Creek Power Station Unit No. 4

    SciTech Connect (OSTI)

    Not Available

    1980-07-15

    A conceptual design of a sodium-cooled, solar, central-receiver repowering system for West Texas Utilities' Paint Creek Unit 4 was prepared, solely under funds provided by West Texas Utilities (WTU), the Energy Systems Group (ESG) of Rockwell International, and four other support groups. A central-receiver repowering system is one in which a tower, surrounded by a large field of mirrors, is placed adjacent to an existing electric power plant. A receiver, located on top of the tower, absorbs solar energy reflected onto it by the mirrors and converts this solar energy to heat energy. The heat energy is transported by the liquid sodium to a set of sodium-to-steam steam generators. The steam generators produce steam at the same temperature and pressure as that produced by the fossil boiler in the existing plant. When solar energy is available, steam is produced by the solar part of the plant, thus displacing steam from the fossil boiler, and reducing the consumption of fossil fuel while maintaining the original plant output. A means for storing the solar energy is usually provided, so that some energy obtained from the solar source can be used to displace natural gas or oil fuels when the sun is not shining. This volume presents an executive summary of the conceptual design, performance, economics, development plans, and site owner's assessment. (WHK)

  9. Proposed amendment for Presidential Permit PP-63 and associated modifications to 500 kV international transmission line, Forbes, Minnesota to Manitoba, Canada Northern States Power Company. Final Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1992-02-01

    Northern States Power Company, (NSP), a Minnesota investor owned utility has applied to the Office of Fossil Energy, United States Department of Energy, to amend Presidential Permit PP-63 to allow for alterations to the 500 kV transmission line and as sedated facilities currently regulated by this permit. The alterations proposed for the 500 kV line owned by NSP are part of a long term effort sponsored by NSP to upgrade the existing NSP transmission system to allow for increased exchange of electricity with the Manitoba Hydro-Electric Board. Presidential Permit PP-63 authorized NSP to construct, connect, operate and maintain a 500 kV line at the United States/Canadian border approximately seven-and-a-half miles west of Warroad in Roseau County, Minnesota. This line connects with a 500 kV line owned and operated by the Manitoba Hydro-Electric Board (MHEB), which extends from Dorsey, Manitoba, Canada to the United States/Canadian border. NSP proposes to increase the electricity transfer capability of this transmission facility by constructing a new 80-acre substation on the existing 500 kV line in Roseau County, Minnesota, and upgrading the existing substation at Forbes, Minnesota. The proposed Roseau substation would contain two 41.5 ohm series capacitor banks. In addition, static VAR compensators are to be installed at the existing Forbes Substation. Approximately 5 acres would be added to the 30-acre Forbes site to house the additional equipment. No new lines would enter or exit the facility. NSP proposes to place the new Roseau Substation in service in May 1993 and to complete the upgrading of the Forbes Substation in March 1994. The primary, initial purpose of these modifications is to enable NSP to import 400 megawatts of electric power from MHEB during the summer months to meet peak electrical demand in the Minneapolis-St. Paul area. It is expected that this power transfer would begin in 1993.

  10. Low NO{sub x} turbine power generation utilizing low Btu GOB gas. Final report, June--August 1995

    SciTech Connect (OSTI)

    Ortiz, I.; Anthony, R.V.; Gabrielson, J.; Glickert, R.

    1995-08-01

    Methane, a potent greenhouse gas, is second only to carbon dioxide as a contributor to potential global warming. Methane liberated by coal mines represents one of the most promising under exploited areas for profitably reducing these methane emissions. Furthermore, there is a need for apparatus and processes that reduce the nitrogen oxide (NO{sub x}) emissions from gas turbines in power generation. Consequently, this project aims to demonstrate a technology which utilizes low grade fuel (CMM) in a combustion air stream to reduce NO{sub x} emissions in the operation of a gas turbine. This technology is superior to other existing technologies because it can directly use the varying methane content gases from various streams of the mining operation. The simplicity of the process makes it useful for both new gas turbines and retrofitting existing gas turbines. This report evaluates the feasibility of using gob gas from the 11,000 acre abandoned Gateway Mine near Waynesburg, Pennsylvania as a fuel source for power generation applying low NO{sub x} gas turbine technology at a site which is currently capable of producing low grade GOB gas ({approx_equal} 600 BTU) from abandoned GOB areas.

  11. Demonstration of a Novel Synchrophasor-based Situational Awareness System: Wide Area Power System Visualization, On-line Event Replay and Early Warning of Grid Problems

    SciTech Connect (OSTI)

    Rosso, A.

    2012-12-31

    Since the large North Eastern power system blackout on August 14, 2003, U.S. electric utilities have spent lot of effort on preventing power system cascading outages. Two of the main causes of the August 14, 2003 blackout were inadequate situational awareness and inadequate operator training In addition to the enhancements of the infrastructure of the interconnected power systems, more research and development of advanced power system applications are required for improving the wide-area security monitoring, operation and planning in order to prevent large- scale cascading outages of interconnected power systems. It is critically important for improving the wide-area situation awareness of the operators or operational engineers and regional reliability coordinators of large interconnected systems. With the installation of large number of phasor measurement units (PMU) and the related communication infrastructure, it will be possible to improve the operators’ situation awareness and to quickly identify the sequence of events during a large system disturbance for the post-event analysis using the real-time or historical synchrophasor data. The purpose of this project was to develop and demonstrate a novel synchrophasor-based comprehensive situational awareness system for control centers of power transmission systems. The developed system named WASA (Wide Area Situation Awareness) is intended to improve situational awareness at control centers of the power system operators and regional reliability coordinators. It consists of following main software modules: • Wide-area visualizations of real-time frequency, voltage, and phase angle measurements and their contour displays for security monitoring. • Online detection and location of a major event (location, time, size, and type, such as generator or line outage). • Near-real-time event replay (in seconds) after a major event occurs. • Early warning of potential wide-area stability problems. The system has been

  12. Environmental studies for a 1100-kV power line in Oregon. A special report

    SciTech Connect (OSTI)

    Rogers, L.; Hinds, R.

    1983-01-01

    In the first research project to monitor the effects of 1100-kV transmission on a natural ecosystem, researchers at Battelle, Pacific Northwest Laboratories have studied responses of wildlife, native plants, honeybees, and agricultural crops and cattle. No adverse effects were detected on wildlife, crops or cattle. Effects were observed on trees growing within the defined right of way and on honeybee colonies placed beneath the line.

  13. EIS-0005-FS: Bonneville Power Administration Proposed FY 1979 Program, Facility Location on Supplement, Southwest Oregon Area Service, Buckley-Summer Lake 500 kV Line, Supplemental

    Broader source: Energy.gov [DOE]

    This Bonneville Power Administration document assesses the environmental impacts of constructing transmission facilities, which will coordinate with the Midpoint-Malin 500-kV line to be constructed by the Pacific Power and Light (PP&L) Company. The proposed action includes the construction of the 1.56-mile Buckley-Summer Lake 500-kV transmission line; the proposed Buckley Substation near Maupin, Oregon; and the proposed Summer Lake Substation near Silver Lake, Oregon.

  14. Power line fault current coupling to nearby natural gas pipelines: Volume 3, Analysis of pipeline coating impedance: Final report

    SciTech Connect (OSTI)

    Dabkowski, J.; Frazier, M. J.

    1988-08-01

    This report is a compilation of results obtained from two research programs. The response of a pipeline and coating at the higher voltage excitation levels encountered under power line fault conditions appears to be dominated by conduction at holiday sites in the coating. A simple analytical model was developed for predicting the resistance of a pipeline coating holiday as a function of the voltage produced across the pipeline coating by a nearby faulted power transmission line. The model was initially validated using coated pipeline samples stressed by a capacitive discharge voltage. Additional validation tests were then performed at the Pacific Gas and Electric Company's High Voltage Engineering Research Facility using high voltage ac waveforms for fault simulation. The principle program objective was to develop, both by laboratory and controlled field testing, an electrical resistance characterization for the pipeline coating as a function of the applied voltage level. The development of this model will allow a more accurate prediction of coupled voltage levels to a pipeline during fault current conditions. 54 figs, 3 tabs.

  15. Utilization of a fuel cell power plant for the capture and conversion of gob well gas. Final report, June--December, 1995

    SciTech Connect (OSTI)

    Przybylic, A.R.; Haynes, C.D.; Haskew, T.A.; Boyer, C.M. II; Lasseter, E.L.

    1995-12-01

    A preliminary study has been made to determine if a 200 kW fuel cell power plant operating on variable quality coalbed methane can be placed and successfully operated at the Jim Walter Resources No. 4 mine located in Tuscaloosa County, Alabama. The purpose of the demonstration is to investigate the effects of variable quality (50 to 98% methane) gob gas on the output and efficiency of the power plant. To date, very little detail has been provided concerning the operation of fuel cells in this environment. The fuel cell power plant will be located adjacent to the No. 4 mine thermal drying facility rated at 152 M British thermal units per hour. The dryer burns fuel at a rate of 75,000 cubic feet per day of methane and 132 tons per day of powdered coal. The fuel cell power plant will provide 700,000 British thermal units per hour of waste heat that can be utilized directly in the dryer, offsetting coal utilization by approximately 0.66 tons per day and providing an avoided cost of approximately $20 per day. The 200 kilowatt electrical power output of the unit will provide a utility cost reduction of approximately $3,296 each month. The demonstration will be completely instrumented and monitored in terms of gas input and quality, electrical power output, and British thermal unit output. Additionally, real-time power pricing schedules will be applied to optimize cost savings. 28 refs., 35 figs., 13 tabs.

  16. A study of toxic emissions from a coal-fired power plant utilizing an ESP while demonstrating the ICCT CT-121 FGD Project. Final report

    SciTech Connect (OSTI)

    Not Available

    1994-06-16

    The US Department of Energy is performing comprehensive assessments of toxic emissions from eight selected coal-fired electric utility units. This program responds to the Clean Air Act Amendments of 1990, which require the US Environmental Protection Agency (EPA) to evaluate emissions of hazardous air pollutants (HAPs) from electric utility power plants for Potential health risks. The resulting data will be furnished to EPA utility power plants and health risk determinations. The assessment of emissions involves the collection and analysis of samples from the major input, process, and output streams of each of the eight power plants for selected hazardous Pollutants identified in Title III of the Clean Air Act. Additional goals are to determine the removal efficiencies of pollution control subsystems for these selected pollutants and the Concentrations associated with the particulate fraction of the flue gas stream as a function of particle size. Material balances are being performed for selected pollutants around the entire power plant and several subsystems to identify the fate of hazardous substances in each utility system. Radian Corporation was selected to perform a toxics assessment at a plant demonstrating an Innovative Clean Coal Technology (ICCT) Project. The site selected is Plant Yates Unit No. 1 of Georgia Power Company, which includes a Chiyoda Thoroughbred-121 demonstration project.

  17. NRC review of Electric Power Research Institute`s advanced light water reactor utility requirements document. Passive plant designs, chapters 2-13, project number 669

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    The Electric Power Research Institute (EPRI) is preparing a compendium of technical requirements, referred to as the {open_quotes}Advanced Light Water Reactor [ALWR] Utility Requirements Document{close_quotes}, that is acceptable to the design of an ALWR power plant. When completed, this document is intended to be a comprehensive statement of utility requirements for the design, construction, and performance of an ALWR power plant for the 1990s and beyond. The Requirements Document consists of three volumes. Volume I, {open_quotes}ALWR Policy and Summary of Top-Tier Requirements{close_quotes}, is a management-level synopsis of the Requirements Document, including the design objectives and philosophy, the overall physical configuration and features of a future nuclear plant design, and the steps necessary to take the proposed ALWR design criteria beyond the conceptual design state to a completed, functioning power plant. Volume II consists of 13 chapters and contains utility design requirements for an evolutionary nuclear power plant [approximately 1350 megawatts-electric (MWe)]. Volume III contains utility design requirements for nuclear plants for which passive features will be used in their designs (approximately 600 MWe). In April 1992, the staff of the Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, issued Volume 1 and Volume 2 (Parts 1 and 2) of its safety evaluation report (SER) to document the results of its review of Volumes 1 and 2 of the Requirements Document. Volume 1, {open_quotes}NRC Review of Electric Power Research Institute`s Advanced Light Water Reactor Utility Requirements Document - Program Summary{close_quotes}, provided a discussion of the overall purpose and scope of the Requirements Document, the background of the staff`s review, the review approach used by the staff, and a summary of the policy and technical issues raised by the staff during its review.

  18. A Guide to Community Shared Solar: Utility, Private, and Nonprofit Project Development (Book), Powered by SunShot, U.S. Department of Energy (DOE)

    Broader source: Energy.gov [DOE]

    This guide is organized around three sponsorship models: utility-sponsored projects, projects sponsored by special purpose entities - businesses formed for the purpose of producing community solar power, and non-profit sponsored projects. The guide addresses issues common to all project models, as well as issues unique to each model.

  19. EA-1629:Southwestern Power Administration Utility Corridor and Tower Site Vegetation Management; Ozark-St. Francis National Forest, Pope and Searcy Counties, Arkansas

    Broader source: Energy.gov [DOE]

    U.S. Forest Service prepared an EA that evaluated the potential environmental impacts of amending a Southwestern Area Power Administration (SWPA) permit to allow herbicide application within SWPA transmission line rights-of-way in the Ozark-St. Francis National Forest. SWPA initially was a cooperating agency, and later ended its involvement in preparing the EA.

  20. Utility-scale variable-speed wind turbines using a doubly-fed generator with a soft-switching power converter

    SciTech Connect (OSTI)

    Weigand, C.H.; Lauw, H.K.; Marckx, D.A.

    1996-12-31

    Utility-scale wind turbines operating at variable RPM have been studied for a considerable period of time. Whereas the increase in energy output originally has been considered the principal benefit of variable-speed operation, the ability to tightly control the drive-train torque by electronic means is becoming another very important cost factor, especially for turbine ratings above 500 kilowatts. This cost benefit becomes even more significant as optimum turbine ratings today are approaching (and surpassing) 1 Megawatt. Having identified the benefits for the turbine, the designer is confronted with the task of finding the most cost-effective variable-speed generation system which allows him to make use of the benefits, yet does not introduce well-known electrical problems associated with state-of-the-art variable-speed generator controls, such as drastically reduced generator winding life, excessive harmonics on the utility, and poor utility power factor. This paper will indicate that for high-power (> 500 kW), utility-scale wind turbines a doubly-fed generator system in connection with a soft-switching resonant power converter is the least-cost variable-speed generation system offering all of the desired benefits, yet avoids the introduction of the potential electrical problems stated above. 3 refs., 3 figs., 1 tab.

  1. Sierra Pacific Power Company Alturas Transmission Line Project, Final Environmental Impact Report/Environmental Impact Statement. Volume 2: Comments and responses

    SciTech Connect (OSTI)

    1995-11-01

    Sierra Pacific Power Company has proposed the construction and operation of a 345,000 volt overhead electric power transmission line from Alturas, California to Reno, Nevada. This Environmental Impact Report/Environmental Impact Statement will assess the potential environmental impacts of the proposed project and alternatives. This report contains public comments which were received on the Draft EIR/S. Significant issues may be identified through public and agency comments.

  2. Grid Impacts of Wind Power Variability: Recent Assessments from a Variety of Utilities in the United States (Presentation)

    SciTech Connect (OSTI)

    Parsons, B.

    2006-03-01

    Presentation for the European Wind Energy Conference held February 27--March 2, 2006, in Athens, Greece, showing grid impacts of wind power variability.

  3. EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah

    Broader source: Energy.gov [DOE]

    This EIS is being prepared jointly by DOE’s Western Area Power Administration and the U.S. Forest Service. The EIS evaluates the potential environmental impacts of Western’s proposed changes to vegetation management along its transmission line rights-of-way on National Forest System lands in Colorado, Utah, and Nebraska.

  4. EIS-0032: 500 kV International Transmission Line NSP-TR-1, Forbes, Minnesota to Manitoba, Canada, Northern States Power Company

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts of a 500-kilovolt transmission line proposed by the Northern States Power Company to provide a transmission facility for the exchange of electrical energy between Canada and the United States.

  5. Transmission line capital costs

    SciTech Connect (OSTI)

    Hughes, K.R.; Brown, D.R.

    1995-05-01

    The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy`s Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs.

  6. Final Summary Report: Em-Powering Coastal States and Utilities through Model Offshore Wind Legislation and Outreach

    SciTech Connect (OSTI)

    Jeremy Firestone; Dawn Kurtz Crompton

    2011-11-30

    The final summary report summarizes the most significant findings from three project reports detailing: feed-in tariffs, model request for proposals for new generation, and model state offshore wind power legislation.

  7. Electrical Utility Materials Handler

    Broader source: Energy.gov [DOE]

    Join the Bonneville Power Administration (BPA) for a challenging and rewarding career, while working, living, and playing in the Pacific Northwest. The Electrical Utility Material Handler (EUMH)...

  8. Utilization of municipal wastewater for cooling in thermoelectric power plants: Evaluation of the combined cost of makeup water treatment and increased condenser fouling

    SciTech Connect (OSTI)

    Walker, Michael E.; Theregowda, Ranjani B.; Safari, Iman; Abbasian, Javad; Arastoopour, Hamid; Dzombak, David A.; Hsieh, Ming-Kai; Miller, David C.

    2013-10-01

    A methodology is presented to calculate the total combined cost (TCC) of water sourcing, water treatment and condenser fouling in the recirculating cooling systems of thermoelectric power plants. The methodology is employed to evaluate the economic viability of using treated municipal wastewater (MWW) to replace the use of freshwater as makeup water to power plant cooling systems. Cost analyses are presented for a reference power plant and five different tertiary treatment scenarios to reduce the scaling tendencies of MWW. Results indicate that a 550 MW sub-critical coal fired power plant with a makeup water requirement of 29.3 ML/day has a TCC of $3.0 - 3.2 million/yr associated with the use of treated MWW for cooling. (All costs USD 2009). This translates to a freshwater conservation cost of $0.29/kL, which is considerably lower than that of dry air cooling technology, $1.5/kL, as well as the 2020 conservation cost target set by the U.S. Department of Energy, $0.74/kL. Results also show that if the available price of freshwater exceeds that of secondary-treated MWW by more than $0.13-0.14/kL, it can be economically advantageous to purchase secondary MWW and treat it for utilization in the recirculating cooling system of a thermoelectric power plant.

  9. Sandia Energy - Utility Operations and Programs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Utility Operations and Programs Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Utility Operations and Programs Utility...

  10. Utility-Scale Wind & Solar Power in the U.S.: Where it stands in 2013 and its future going forward

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

    Utility-Scale Wind & Solar Power in the U.S.: Where it stands in 2014 and its future going forward; and will Storage enter the picture soon? Mike O'Sullivan Senior Vice President November 5, 2014 2 Goals for Today's Discussion * Inform and educate * Be interesting and provide value to each of you professionally without getting into too much technical or engineering jargon * Not be an infomercial for NextEra Energy * Get to Q&A quickly as that is always more interesting than powerpoint