National Library of Energy BETA

Sample records for renewable power generation

  1. BATTERY STORAGE CONTROL FOR STEADYING RENEWABLE POWER GENERATION

    E-Print Network [OSTI]

    by storing excess power to a battery during excess generation, and then releasing the energy when power generation diminishes. Among other considera- tions, we would like to release and store energy at a bounded States have adopted renewable portfolio standards, which require a certain percentage of electric energy

  2. Guide to Purchasing Green Power: Renewable Electricity, Renewable...

    Office of Environmental Management (EM)

    Purchasing Green Power: Renewable Electricity, Renewable Energy Certificates, and On-Site Renewable Generation Guide to Purchasing Green Power: Renewable Electricity, Renewable...

  3. Guide to purchasing green power. Renewable electricity, renewable energy certificates and on-site renewable generation

    SciTech Connect (OSTI)

    2004-09-30

    The Guide to Purchasing Green Power is intended for organizations that are considering the merits of buying green power as well as those that have decided to buy it and want help doing so. The Guide was written for a broad audience, including businesses, government agencies, universities, and all organizations wanting to diversify their energy supply and to reduce the environmental impact of their electricity use.The Guide provides an overview of green power markets and describes the necessary steps to buying green power. This section summarizes the Guide to help readers find the information they need.

  4. Guide to Purchasing Green Power: Renewable Electricity, Renewable Energy Certificates, and On-Site Renewable Generation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12,ExecutiveFinancing Programs | Department ofIntegrating Purchasing Green Power

  5. Message Passing for Integrating and Assessing Renewable Generation in a Redundant Power Grid

    E-Print Network [OSTI]

    Zdeborová, Lenka; Chertkov, Michael

    2009-01-01

    A simplified model of a redundant power grid is used to study integration of fluctuating renewable generation. The grid consists of large number of generator and consumer nodes. The net power consumption is determined by the difference between the gross consumption and the level of renewable generation. The gross consumption is drawn from a narrow distribution representing the predictability of aggregated loads, and we consider two different distributions representing wind and solar resources. Each generator is connected to D consumers, and redundancy is built in by connecting R of these consumers to other generators. The lines are switchable so that at any instance each consumer is connected to a single generator. We explore the capacity of the renewable generation by determining the level of "firm" generation capacity that can be displaced for different levels of redundancy R. We also develop message-passing control algorithm for finding switch settings where no generator is overloaded.

  6. Load-shedding probabilities with hybrid renewable power generation and energy storage

    E-Print Network [OSTI]

    Xu, Huan

    Load-shedding probabilities with hybrid renewable power generation and energy storage Huan Xu, Ufuk, and energy storage. costs [7], [8], [9]. Reference [10] uses a probabilistic model to predict the feasibility Topcu, Steven H. Low, Christopher R. Clarke, and K. Mani Chandy Abstract-- The integration of renewable

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

    E-Print Network [OSTI]

    benefits also include loss reduction, avoided costs of energy production, generation capacity, distributionImpact of Renewable Distributed Generation on Power Systems M. Begovi, A. Pregelj, A. Rohatgi D, eliminating the unnecessary transmission and distribution costs. In addition, it can reduce fossil fuel

  8. Load-shedding probabilities with hybrid renewable power generation and energy storage

    E-Print Network [OSTI]

    Xu , Huan

    Load-shedding probabilities with hybrid renewable power generation and energy storage Huan Xu, Ufuk to the intermittency in the power output. These difficulties can be alleviated by effectively utilizing energy storage turbines, supplemented with energy storage. We use a simple storage model alongside a combination

  9. Variable Renewable Generation can Provide Balancing Control to the Electric Power System (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-09-01

    As wind and solar plants become more common in the electric power system, they may be called on to provide grid support services to help maintain system reliability. For example, through the use of inertial response, primary frequency response, and automatic generation control (also called secondary frequency response), wind power can provide assistance in balancing the generation and load on the system. These active power (i.e., real power) control services have the potential to assist the electric power system in times of disturbances and during normal conditions while also potentially providing economic value to consumers and variable renewable generation owners. This one-page, two-sided fact sheet discusses the grid-friendly support and benefits renewables can provide to the electric power system.

  10. Renewable Electricity Generation

    SciTech Connect (OSTI)

    2012-09-01

    This document highlights DOE's Office of Energy Efficiency and Renewable Energy's advancements in renewable electricity generation technologies including solar, water, wind, and geothermal.

  11. Smoothing the Eects of Renewable Generation on the Distribution Grid

    E-Print Network [OSTI]

    Naud, Paul S.

    2014-01-01

    to Grid by Paul Naud Renewable electrical power sourcessystem based on various renewable energy resources. InCRUZ Smoothing the Effects of Renewable Generation on the

  12. Renewable Power Options for Electrical Generation on Kaua'i: Economics and Performance Modeling

    SciTech Connect (OSTI)

    Burman, K.; Keller, J.; Kroposki, B.; Lilienthal, P.; Slaughter, R.; Glassmire, J.

    2011-11-01

    The Hawaii Clean Energy Initiative (HCEI) is working with a team led by the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to assess the economic and technical feasibility of increasing the contribution of renewable energy in Hawaii. This part of the HCEI project focuses on working with Kaua'i Island Utility Cooperative (KIUC) to understand how to integrate higher levels of renewable energy into the electric power system of the island of Kaua'i. NREL partnered with KIUC to perform an economic and technical analysis and discussed how to model PV inverters in the electrical grid.

  13. Renewable Electricity Generation (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01

    This document highlights DOE's Office of Energy Efficiency and Renewable Energy's advancements in renewable electricity generation technologies including solar, water, wind, and geothermal.

  14. Power marketing and renewable energy

    SciTech Connect (OSTI)

    Fang, J.M.

    1997-09-01

    Power marketing refers to wholesale and retail transactions of electric power made by companies other than public power entities and the regulated utilities that own the generation and distribution lines. The growth in power marketing has been a major development in the electric power industry during the last few years, and power marketers are expected to realize even more market opportunities as electric industry deregulation proceeds from wholesale competition to retail competition. This Topical Issues Brief examines the nature of the power marketing business and its relationship with renewable power. The information presented is based on interviews conducted with nine power marketing companies, which accounted for almost 54% of total power sales by power marketers in 1995. These interviews provided information on various viewpoints of power marketers, their experience with renewables, and their respective outlooks for including renewables in their resource portfolios. Some basic differences exist between wholesale and retail competition that should be recognized when discussing power marketing and renewable power. At the wholesale level, the majority of power marketers stress the commodity nature of electricity. The primary criteria for developing resource portfolios are the same as those of their wholesale customers: the cost and reliability of power supplies. At the retail level, electricity may be viewed as a product that includes value-added characteristics or services determined by customer preferences.

  15. Renewable Power Procurement Policy

    Broader source: Energy.gov [DOE]

    New York Governor George Pataki signed Executive Order No. 111 to promote "Green and Clean" State Buildings and Vehicles on June 10, 2001. The renewable-power procurement component of this order...

  16. Statkraft is Europe's largest generator of renewable energy and is the leading power company in Norway. The company owns, produces and develops hydropower, wind power, gas-fired power and

    E-Print Network [OSTI]

    Morik, Katharina

    Statkraft is Europe's largest generator of renewable energy and is the leading power company countries. For our office in Düsseldorf we are currently looking to hire a System Manager Renewable Energy. Share our passion for renewable energy and be a part of tomorrow's energy world. Your department

  17. Renewable Generation Effect on Net Regional Energy Interchange...

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

    North-West Power Pool PV Photovoltaic power generation RE Renewable energy: PV andor wind RMPP Rocky Mountains Power Pool TEPPC Transmission Expansion Planning Policy Committee...

  18. Renewable Power Options for Electricity Generation on Kaua’i: Economics and Performance Modeling

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Hawaii Clean Energy Initiative (HCEI) is working with a team led by the U.S. Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) to assess the economic and technical feasibility of increasing the contribution of renewable energy in Hawaii.

  19. Control and Optimization of Power Systems with Renewables: Voltage Regulation and Generator Dispatch

    E-Print Network [OSTI]

    Zhang, Baosen

    2013-01-01

    4 Generator Dispatch 4.1 ProblemRegulation . . . . . . .1.1.3 Generator Dispatch . . . .Regulation . . . . 1.2.3 Generator Dispatch . . . . 1.3 Our

  20. Biomass Support for the China Renewable Energy Law: Feasibility Report -- Agricultural and Forestry Solid Wastes Power Generation Demonstration, December 2005

    SciTech Connect (OSTI)

    Not Available

    2006-10-01

    Subcontractor report on feasibility of using agricultural and forestry wastes for power generation in China

  1. Optimal Integration of Renewable Energy Resources in Data Centers with Behind-the-Meter Renewable Generator

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    1 Optimal Integration of Renewable Energy Resources in Data Centers with Behind-the-Meter Renewable-- Renewable energy resources, such as wind and solar power, are rapidly becoming generation technologies-temporal variations, the integration of renewable energy resources is usually very challenging. Some of the previously

  2. Distributed Generation and Renewable Energy in

    E-Print Network [OSTI]

    Distributed Generation and Renewable Energy in the Electric Cooperative Sector Ed Torrero generation (non-renewable) $6.4M CRN dollars over 10 years Renewable energy $1.6M CRN dollars over 10

  3. STAFF REPORT RENEWABLE POWER IN

    E-Print Network [OSTI]

    , distributed generation, energy storage, environmental impacts, environmental justice, feedin tariff, solar photovoltaic, solar thermal, transmission, wind, workforce development. Please use Portfolio Standard requires utilities to increase the amount of renewable generation sold to customers

  4. Renewable energy generation sources

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *ReindustrializationEnergyWind Energy Wind Find More Like

  5. Abstract--The integration of variable renewable generation sources continues to be a significant area of focus for power

    E-Print Network [OSTI]

    area of focus for power system planning. Renewable portfolio standards and initiatives to reduce in the electricity production. With the expected electrification of transportation, electric vehicles may offer a new of control to vary the charge rate in response to grid stress. Many approaches to this problem exist

  6. NC GreenPower Renewable Energy Credit Production

    Office of Energy Efficiency and Renewable Energy (EERE)

    NC GreenPower is requesting proposals for renewable energy credits associated with renewable energy, such as solar, PV, wind, small hydro of 10 MW or less, generated in North Carolina and supplied to the North Carolina electric grid.

  7. On-Site Renewable Power Purchase Agreements for Renewable Energy Projects

    Broader source: Energy.gov [DOE]

    An on-site renewable power purchase agreement (PPA) enables Federal agencies to fund a renewable energy project by contracting to purchase the power generated by the system. The renewable energy equipment is installed and owned by a developer but located on-site at the agency facility.

  8. Renewable build-up pathways for the US: Generation costs are not system costs

    E-Print Network [OSTI]

    Jacobson, Mark

    for backup power plants in a fully renewable setting are hydro- electric power, geothermal power, and to some Large-scale integration of renewable power generation Renewable power generation Optimal mix of wind optimized pathways for the build-up of wind and solar power for least backup energy needs as well

  9. Eastern Renewable Generation Integration Study (Presentation)

    SciTech Connect (OSTI)

    Bloom, A.

    2014-05-01

    This presentation provides a high-level overview of the Eastern Renewable Generation Integration Study process, scenarios, tools, and goals.

  10. Renewable Combined Heat and Power Dairy Operations

    E-Print Network [OSTI]

    with operating costs, and provide an environmental benefit. However, dairy digester renewable projects have enjoyed limited success in California. The lack of data on performance, emissions, the price of electricity generation, and the reliability of that power serve as barriers to farmers, investors

  11. Eastern Renewable Generation Integration Study Solar Dataset (Presentation)

    SciTech Connect (OSTI)

    Hummon, M.

    2014-04-01

    The National Renewable Energy Laboratory produced solar power production data for the Eastern Renewable Generation Integration Study (ERGIS) including "real time" 5-minute interval data, "four hour ahead forecast" 60-minute interval data, and "day-ahead forecast" 60-minute interval data for the year 2006. This presentation provides a brief overview of the three solar power datasets.

  12. Reliability Evaluation of Electric Power Generation Systems with Solar Power 

    E-Print Network [OSTI]

    Samadi, Saeed

    2013-11-08

    Conventional power generators are fueled by natural gas, steam, or water flow. These generators can respond to fluctuating load by varying the fuel input that is done by a valve control. Renewable power generators such as ...

  13. Alternative Trading Arrangements for Intermittent Renewable Power...

    Open Energy Info (EERE)

    Alternative Trading Arrangements for Intermittent Renewable Power: A Centralised Renewables Market and Other Concepts Jump to: navigation, search Tool Summary LAUNCH TOOL Name:...

  14. Bidding strategies for renewable energy generation with non stationary statistics

    E-Print Network [OSTI]

    Giannitrapani, Antonello

    function (cdf ) of the power generation at the same hour. Under the assumption of time-invariant statisticsBidding strategies for renewable energy generation with non stationary statistics A. Giannitrapani,paoletti,vicino,zarrilli}@dii.unisi.it Abstract: The intrinsic variability in non-dispatchable power generation raises important challenges

  15. Renewable Electricity Generation in the United States

    E-Print Network [OSTI]

    Schmalensee, Richard

    This paper provides an overview of the use of renewable energy sources to generate electricity in the United States and a critical analysis of the federal and state policies that have supported the deployment of renewable ...

  16. Quantifying avoided emissions from renewable generation

    E-Print Network [OSTI]

    Gomez, Gabriel R. (Gabriel Rodriguez)

    2009-01-01

    Quantifying the reduced emissions due to renewable power integration and providing increasingly accurate emissions analysis has become more important for policy makers in the age of renewable portfolio standards (RPS) and ...

  17. Power Systems Engineering Research Center Renewable Electricity Futures

    E-Print Network [OSTI]

    Van Veen, Barry D.

    Power Systems Engineering Research Center Renewable Electricity Futures Trieu Mai Electricity of the extent to which renewable energy supply can meet the electricity demands of the contiguous United States renewable electricity generation levels: from 30% up to 90% (focusing on 80%) of all U.S. electricity

  18. The RenewElec Project: Variable Renewable Energy and the Power System

    SciTech Connect (OSTI)

    Apt, Jay

    2014-02-14

    Variable energy resources, such as wind power, now produce about 4% of U.S. electricity. They can play a significantly expanded role if the U.S. adopts a systems approach that considers affordability, security and reliability. Reaching a 20-30% renewable portfolio standard goal is possible, but not without changes in the management and regulation of the power system, including accurately assessing and preparing for the operational effects of renewable generation. The RenewElec project will help the nation make the transition to the use of significant amounts of electric generation from variable and intermittent sources of renewable power.

  19. Renewable Electricity Generation (Fact Sheet), Office of Energy...

    Energy Savers [EERE]

    Renewable Electricity Generation (Fact Sheet), Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy (DOE) Renewable Electricity Generation (Fact Sheet),...

  20. Power production from renewable resources in a gasification power system

    SciTech Connect (OSTI)

    Paisley, M.A.; Farris, G.; Bain, R.

    1996-12-31

    The US Department of Energy (DOE) has been a leader in the promotion and development of alternative fuel supplies based on renewable energy crops. One promising power generation technology is biomass gasification coupled with either a gas turbine in a combined cycle system or a fuel cell. The gasification of biomass can efficiently and economically produce a renewable source of a clean gaseous fuel suitable for use in these high efficiency power systems or as a substitute fuel in other combustion devices such as boilers, kilns, or other natural gas fired equipment. This paper discusses the development and commercialization of the Battelle high-throughput gasification process for gas turbine based power generation systems. Projected process economics for a gas turbine combined cycle plant are presented along with a description of integrated system operation coupling a 200kW gas turbine power generation system to a 10 ton per day gasifier, and current commercialization activities. 6 refs., 3 figs., 1 tab.

  1. Eastern Renewable Generation Integration Study (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-02-01

    This one-page, two-sided fact sheet provides an overview of the Eastern Renewable Generation and Integration Study process.

  2. ELECTROMAGNETIC COMPATIBILITY AND RENEWABLE POWER FOR IMPLANTABLE NEUROSTIMULATORS

    E-Print Network [OSTI]

    Pantchenko, Oxana S.

    2012-01-01

    38 3. Renewable Power for ImplantableCOMPATIBILITY AND RENEWABLE POWER FOR IMPLANTABLER, Isaacson M, Shakouri A: A renewable energy power source

  3. Renewable Energy Powers Renewable Energy Lab, Employees

    E-Print Network [OSTI]

    electricity from wind-powered turbines near the Wyoming border. "We believe that wind power is a highly viable from a utility to power an entire building. More than 100 NREL employees have also decided to "walk of how small, creates demand for a product I believe in. If I don't help get it started, who's going to

  4. Overview of Thermoelectric Power Generation Technologies in Japan

    Broader source: Energy.gov [DOE]

    Discusses thermoelectric power generation technologies as applied to waste heat recovery, renewable thermal energy sources, and energy harvesting

  5. Distributed Real-Time Power Balancing in Renewable-Integrated Power Grids

    E-Print Network [OSTI]

    Liang, Ben

    , taking into account the uncertainty of the renewable generation, loads, and energy prices. We and more renewable energy sources such as wind and solar are expected to be integrated into the power grids balancing. Real-time control is mainly motivated by the unpredictability of renewable sources, which can

  6. Accounting for fuel price risk: Using forward natural gas prices instead of gas price forecasts to compare renewable to natural gas-fired generation

    E-Print Network [OSTI]

    Bolinger, Mark; Wiser, Ryan; Golove, William

    2003-01-01

    and renewable generation. For example, utilities and independent system operators sometimes financially penalize wind power to

  7. Quenching China's Thirst for Renewable Power: Water Implications of China's Renewable Development

    E-Print Network [OSTI]

    Zheng, Nina

    2014-01-01

    tower plant in China. ” Renewable and Sustainable Energyby plant in Guangxi. ” Renewable and Sustainable EnergyChina’s Thirst for Renewable Power: Water Implications of

  8. Superconducting Power Generation

    E-Print Network [OSTI]

    Mario Rabinowitz

    2003-02-20

    The superconducting ac generator has the greatest potential for large-scale commercial application of superconductivity that can benefit the public. Electric power is a vital ingredient of modern society, and generation may be considered to be the vital ingredient of a power system. This articles gives background, and an insight into the physics and engineering of superconducting power generation.

  9. Renewable Energy for Electricity Generation in Latin America...

    Open Energy Info (EERE)

    Renewable Energy for Electricity Generation in Latin America: Market, Technologies, and Outlook (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable...

  10. Request for Information Renewable Energy Generation/Production...

    Open Energy Info (EERE)

    Request for Information Renewable Energy GenerationProduction Shreveport Airport Authority - Response Deadline 2 January 2014 Home > Groups > Renewable Energy RFPs Rosborne318's...

  11. Renewable Electricity Generation (Fact Sheet), Office of Energy...

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

    This document highlights DOE's Office of Energy Efficiency and Renewable Energy's advancements in renewable electricity generation technologies including solar, water, wind, and...

  12. Renewable Energy Powered Water Treatment Systems 

    E-Print Network [OSTI]

    Richards, Bryce S.; Schäfer, Andrea

    2009-01-01

    There are many motivations for choosing renewable energy technologies to provide the necessary energy to power water treatment systems for reuse and desalination. These range from the lack of an existing electricity grid, ...

  13. National Renewable Energy Laboratory Wind and Water Power Small...

    Office of Environmental Management (EM)

    National Renewable Energy Laboratory Wind and Water Power Small Business Voucher Open House National Renewable Energy Laboratory Wind and Water Power Small Business Voucher Open...

  14. SeaPower Pacific subsidiary of Renewable Energy Holdings Plc...

    Open Energy Info (EERE)

    SeaPower Pacific subsidiary of Renewable Energy Holdings Plc Carnegie Corporation Ltd Jump to: navigation, search Name: SeaPower Pacific subsidiary of Renewable Energy Holdings Plc...

  15. On-Site Renewable Power Purchase Agreements | Department of Energy

    Office of Environmental Management (EM)

    Project Financing On-Site Renewable Power Purchase Agreements On-Site Renewable Power Purchase Agreements The Federal Energy Management Program (FEMP) provides information,...

  16. Renewing America's Nuclear Power Partnership for Energy Security...

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

    Renewing America's Nuclear Power Partnership for Energy Security and Economic Growth Renewing America's Nuclear Power Partnership for Energy Security and Economic Growth October 8,...

  17. Colorado's Prospects for Interstate Commerce in Renewable Power

    SciTech Connect (OSTI)

    Hurlbut, D. J.

    2009-12-01

    Colorado has more renewable energy potential than it is ever likely to need for its own in-state electricity consumption. Such abundance may suggest an opportunity for the state to sell renewable power elsewhere, but Colorado faces considerable competition from other western states that may have better resources and easier access to key markets on the West Coast. This report examines factors that will be important to the development of interstate commerce for electricity generated from renewable resources. It examines market fundamentals in a regional context, and then looks at the implications for Colorado.

  18. Risk implications of the deployment of renewables for investments in electricity generation

    E-Print Network [OSTI]

    Sisternes, Fernando J. de (Fernando José de Sisternes Jiménez)

    2014-01-01

    This thesis explores the potential risk implications that a large penetration of intermittent renewable electricity generation -such as wind and solar power- may have on the future electricity generation technology mix, ...

  19. WindTurbineGenerator Introduction of the Renewable Micro-Grid Test-Bed

    E-Print Network [OSTI]

    Johnson, Eric E.

    Introduction of the Renewable Micro-Grid Test-Bed Dr. Wenxin Liu Smart Micro-grid and Renewable Technology/AC Inverter Wind Turbine: Torque or Speed Control Wind Generator: PQ Control Cubicle #4: Energy Storage - ± 70A Renewable Microgrid Shipboard Power System ZEDSZEDS ZEDSZEDS ZEDS PDM PDM PMM PMM PDM PMM PMM PDM

  20. Feasibility Study of Economics and Performance of Biomass Power Generation at the Former Farmland Industries Site in Lawrence, Kansas. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect (OSTI)

    Tomberlin, G.; Mosey, G.

    2013-03-01

    Under the RE-Powering America's Land initiative, the U.S. Environmental Protection Agency (EPA) provided funding to the National Renewable Energy Laboratory (NREL) to support a feasibility study of biomass renewable energy generation at the former Farmland Industries site in Lawrence, Kansas. Feasibility assessment team members conducted a site assessment to gather information integral to this feasibility study. Information such as biomass resources, transmission availability, on-site uses for heat and power, community acceptance, and ground conditions were considered.

  1. January 2013 Most Viewed Documents for Power Generation And Distributi...

    Office of Scientific and Technical Information (OSTI)

    2013 Most Viewed Documents for Power Generation And Distribution Lessons from Large-Scale Renewable Energy Integration Studies: Preprint Bird, L.; Milligan, M. Small punch creep...

  2. Fuel Cell Power PlantsFuel Cell Power Plants Renewable and Waste Fuels

    E-Print Network [OSTI]

    generation of combined heat andcombined heat and power ­Clean Power with natural gas f lfuel ­Renewable Gas 30 ­ 42% Turbines * Combined Heat & Power 25 ­35% Micro- (CHP)) fuel cell applications( pp z ETHANOL z WASTE METHANE z BIOGASz BIOGAS z COAL GAS Diversity of Fuels plus High Efficiency ­ High

  3. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    Green Power Programs in State Renewables Portfolio StandardsGreen Power Programs in State Renewables Portfolio Standardshave adopted mandatory renewables portfolio standards (RPS)

  4. Integrating a significant amount of wind power generation into bulk power grid is a primary task for building a cost-effective renewable portfolio and a sustainable energy infrastructure. The uncertainty

    E-Print Network [OSTI]

    DeMara, Ronald F.

    Integrating a significant amount of wind power generation into bulk power grid is a primary task. This talk will be focused on modeling the spatial correlation of wind power from farm level to grid level and spatial correlation of wind farm power generation have posed new challenges to power system operations

  5. Generation and transmission expansion planning for renewable energy integration

    SciTech Connect (OSTI)

    Bent, Russell W; Berscheid, Alan; Toole, G. Loren

    2010-11-30

    In recent years the expansion planning problem has become increasingly complex. As expansion planning (sometimes called composite or integrated resource planning) is a non-linear and non-convex optimization problem, researchers have traditionally focused on approximate models of power flows to solve the problem. The problem has also been split into generation expansion planning (GEP) and transmission network expansion planning (TNEP) to improve computational tractability. Until recently these approximations have produced results that are straight-forward to combine and adapt to the more complex and complete problem. However, the power grid is evolving towards a state where the adaptations are no longer easy (e.g. large amounts of limited control, renewable generation, comparable generation and transmission construction costs) and necessitates new approaches. Recent work on deterministic Discrepancy Bounded Local Search (DBLS) has shown it to be quite effective in addressing the TNEP. In this paper, we propose a generalization of DBLS to handle simultaneous generation and transmission planning.

  6. Optimal Power Allocation for Renewable Energy Source

    E-Print Network [OSTI]

    Sinha, Abhinav

    2011-01-01

    Battery powered transmitters face energy constraint, replenishing their energy by a renewable energy source (like solar or wind power) can lead to longer lifetime. We consider here the problem of finding the optimal power allocation under random channel conditions for a wireless transmitter, such that rate of information transfer is maximized. Here a rechargeable battery, which is periodically charged by renewable source, is used to power the transmitter. All of above is formulated as a Markov Decision Process. Structural properties like the monotonicity of the optimal value and policy derived in this paper will be of vital importance in understanding the kind of algorithms and approximations needed in real-life scenarios. The effect of curse of dimensionality which is prevalent in Dynamic programming problems can thus be reduced. We show our results under the most general of assumptions.

  7. LEAD COMMISSIONER REPORT RENEWABLE POWER IN

    E-Print Network [OSTI]

    LEAD COMMISSIONER REPORT RENEWABLE POWER IN CALIFORNIA: STATUS AND ISSUES DECEMBER 2011 CEC1502011002LCFREV1 #12;CALIFORNIA ENERGY COMMISSION 2011 INTEGRATED ENERGY POLICY REPORT LEAD COMMISSIONER of the 2011 Integrated Energy Policy Report Lead Commissioner. It does not necessarily represent the views

  8. Parasol and GreenSwitch: Managing Datacenters Powered by Renewable Energy

    E-Print Network [OSTI]

    Parasol and GreenSwitch: Managing Datacenters Powered by Renewable Energy ´I~nigo Goiri, William- newable energy. These datacenters will either generate their own renewable energy or draw it directly from an existing nearby plant. Besides reducing carbon footprints, renewable energy can poten- tially reduce energy

  9. A Stochastic Power Network Calculus for Integrating Renewable Energy Sources into the Power Grid

    SciTech Connect (OSTI)

    Wang, K; Ciucu, F; Lin, C; Low, SH

    2012-07-01

    Renewable energy such as solar and wind generation will constitute an important part of the future grid. As the availability of renewable sources may not match the load, energy storage is essential for grid stability. In this paper we investigate the feasibility of integrating solar photovoltaic (PV) panels and wind turbines into the grid by also accounting for energy storage. To deal with the fluctuation in both the power supply and demand, we extend and apply stochastic network calculus to analyze the power supply reliability with various renewable energy configurations. To illustrate the validity of the model, we conduct a case study for the integration of renewable energy sources into the power system of an island off the coast of Southern California. In particular, we asses the power supply reliability in terms of the average Fraction of Time that energy is Not-Served (FTNS).

  10. Quenching China's Thirst for Renewable Power: Water Implications of China's Renewable Development

    E-Print Network [OSTI]

    Zheng, Nina

    2014-01-01

    M.A. , 2009, Estimated use of water in the United States ins Thirst for Renewable Power: Water Implications of China’ss Thirst For Renewable Power: Water Implications of China’s

  11. Feasibility Study of Economics and Performance of Geothermal Power Generation at the Lakeview Uranium Mill Site in Lakeview, Oregon. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect (OSTI)

    Hillesheim, M.; Mosey, G.

    2013-11-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Lakeview Uranium Mill site in Lakeview, Oregon, for a feasibility study of renewable energy production. The EPA contracted with the National Renewable Energy Laboratory (NREL) to provide technical assistance for the project. The purpose of this report is to describe an assessment of the site for possible development of a geothermal power generation facility and to estimate the cost, performance, and site impacts for the facility. In addition, the report recommends development pathways that could assist in the implementation of a geothermal power system at the site.

  12. Overview of Renewables for Power Rangan Banerjee

    E-Print Network [OSTI]

    Banerjee, Rangan

    ­ Present share low Fossil Fuel Reserves ­ finite Environmental Impacts of Energy Consumption Energy/Trigeneration Decentralised Distributed Generation Isolated Demand Side Management (Solar Water Heater, Passive Solar) #12 Silicon Thin Film Solar Power #12;Comparison of Solar Thermal Power Generation Technologies Technology

  13. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into Generating Renewable Energy for New Student

    E-Print Network [OSTI]

    of a project/report". #12;An Investigation into Generating Renewable Energy for New Student Union Building into Generating Renewable Energy for New Student Union Building Using Solar Cells Muhammad Usman Rizwan, Malihsa renewable energy source for the new SUB. This source needed to be on site and able to power at least 20

  14. Tribal Renewable Energy Webinar: EPA Clean Power Plan: What Tribes...

    Energy Savers [EERE]

    Renewable Energy Webinar: EPA Clean Power Plan: What Tribes Need to Know Tribal Renewable Energy Webinar: EPA Clean Power Plan: What Tribes Need to Know November 18, 2015 11:00AM...

  15. Transmission needs across a fully renewable European power system

    E-Print Network [OSTI]

    Rodriguez, Rolando A; Andresen, Gorm B; Heide, Dominik; Greiner, Martin

    2013-01-01

    The residual load and excess power generation of 27 European countries with a 100% penetration of variable renewable energy sources are explored in order to quantify the benefit of power transmission between countries. Estimates are based on extensive weather data, which allows for modelling of hourly mismatches between the demand and renewable generation from wind and solar photovoltaics. For separated countries, balancing is required to cover around 24% of the total annual energy consumption. This number can be reduced down to 15% once all countries are networked together with uncon- strained interconnectors. The reduction represents the maximum possible benefit of transmission for the countries. The total Net Transfer Capacity of the unconstrained interconnectors is roughly twelve times larger than current values. However, constrained interconnector capacities six times larger than the current values are found to provide 97% of the maximum possible benefit of cooperation. This motivates a detailed investig...

  16. Scaling Up Renewable Energy Generation: Aligning Targets and...

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

    UP RENEWABLE ENERGY GENERATION: ALIGNING TARGETS AND INCENTIVES WITH GRID INTEGRATION CONSIDERATIONS GREENING THE GRID CASE STUDY: ITERATIVE TARGET- SETTING AND INTEGRATION STUDIES...

  17. NREL Estimates Economically Viable U.S. Renewable Generation...

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

    Generation November 19, 2015 Analysts at the Energy Department's National Renewable Energy Laboratory (NREL) are providing, for the first time, a method for measuring the...

  18. Oscillating fluid power generator

    DOE Patents [OSTI]

    Morris, David C

    2014-02-25

    A system and method for harvesting the kinetic energy of a fluid flow for power generation with a vertically oriented, aerodynamic wing structure comprising one or more airfoil elements pivotably attached to a mast. When activated by the moving fluid stream, the wing structure oscillates back and forth, generating lift first in one direction then in the opposite direction. This oscillating movement is converted to unidirectional rotational movement in order to provide motive power to an electricity generator. Unlike other oscillating devices, this device is designed to harvest the maximum aerodynamic lift forces available for a given oscillation cycle. Because the system is not subjected to the same intense forces and stresses as turbine systems, it can be constructed less expensively, reducing the cost of electricity generation. The system can be grouped in more compact clusters, be less evident in the landscape, and present reduced risk to avian species.

  19. Renewable Energy Penetration on the power Grid Fall / 2010

    E-Print Network [OSTI]

    Stuart, Steven J.

    ECE 420 Renewable Energy Penetration on the power Grid Fall / 2010 Instructor: Dr. E. B. Makram: TBA Text: Renewable Energy Systems M. Godoy Simoes and Felix A. Farret Attendance: Test attendance): Principles of Renewable Sources of Energy and Electric Power: basic definitions of electrical power

  20. Psm Nature Power Service Management Formerly Umweltkontor Renewable...

    Open Energy Info (EERE)

    Psm Nature Power Service Management Formerly Umweltkontor Renewable Energy AG Jump to: navigation, search Name: psm Nature Power Service & Management (Formerly Umweltkontor...

  1. Eastern Renewable Generation Integration Study: Initial Results (Poster)

    SciTech Connect (OSTI)

    Bloom, A.; Townsend, A.; Hummon, M.; Weekley, A.; Clark, K.; King, J.

    2013-10-01

    This poster presents an overview of the Eastern Renewable Generation Integration Study, which aims to answer critical questions about the future of the Eastern Interconnection under high levels of solar and wind generation penetration.

  2. Short-Term Operation Scheduling in Renewable-Powered Microgrids

    E-Print Network [OSTI]

    Bornemann, Jens

    Short-Term Operation Scheduling in Renewable-Powered Microgrids: A Duality-Based Approach Binyan scheduling prob- lem in renewable-powered microgrids, which is used to determine the least-cost unit- ments. The intermittency nature of the renewable energy sources, as well as microgrid's capacity

  3. Intermountain Renewable Power | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8, 13Renewable Power Jump to: navigation, search Name:

  4. Wind Power Renewables | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company)Idaho)VosslohWestConnecticut: EnergyWind Power Renewables

  5. EverPower Renewables | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy Electricals LtdEcowindEnvironmentalEscoEverPower Renewables Jump

  6. Gas turbine power generation from biomass gasification

    SciTech Connect (OSTI)

    Paisley, M.A.; Litt, R.D.; Overend, R.P.; Bain, R.L.

    1994-12-31

    The Biomass Power Program of the US Department of Energy (DOE) has as a major goal the development of cost-competitive technologies for the production of power from renewable biomass crops. The gasification of biomass provides the potential to meet this goal by efficiently and economically producing a renewable source of a clean gaseous fuel suitable for use in high efficiency gas turbines or as a substitute fuel in other combustion devices such as boilers, kilns, or other natural gas fired equipment. This paper discusses the development of the use of the Battelle high-throughput gasification process for power generation systems. Projected process economics are presented along with a description of current experimental operations coupling a gas turbine power generation system to the research scale gasifier.

  7. The Political Economy of Wind Power in China

    E-Print Network [OSTI]

    Swanson, Ryan Landon

    2011-01-01

    a system for trading ?renewable power generation surchargethe system for trading renewable power credits and verifies

  8. Renewable Generation Effect on Net Regional Energy Interchange: Preprint

    SciTech Connect (OSTI)

    Diakov, Victor; Brinkman, Gregory; Denholm, Paul; Jenkin, Thomas; Margolis, Robert

    2015-07-30

    Using production-cost model (PLEXOS), we simulate the Western Interchange (WECC) at several levels of the yearly renewable energy (RE) generation, between 13% and 40% of the total load for the year. We look at the overall energy exchange between a region and the rest of the system (net interchange, NI), and find it useful to examine separately (i) (time-)variable and (ii) year-average components of the NI. Both contribute to inter-regional energy exchange, and are affected by wind and PV generation in the system. We find that net load variability (in relatively large portions of WECC) is the leading factor affecting the variable component of inter-regional energy exchange, and the effect is quantifiable: higher regional net load correlation with the rest of the WECC lowers net interchange variability. Further, as the power mix significantly varies between WECC regions, effects of ‘flexibility import’ (regions ‘borrow’ ramping capability) are also observed.

  9. The Eastern Renewable Generation Integration Study: Flexibility...

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

    Wind and Solar Aaron Bloom, Aaron Townsend, and David Palchak The National Renewable Energy Laboratory 1 NREL is a national laboratory of the U.S. Department of Energy, Office of...

  10. Abstract--The penetration of plug-in electric vehicles and renewable distributed generation is expected to increase over the

    E-Print Network [OSTI]

    Perreault, Dave

    1 Abstract--The penetration of plug-in electric vehicles and renewable distributed generation, power grids I. INTRODUCTION ROWING concern for climate change and energy security has renewed interest legislative effort to mandate, or incentivize, large scale integration of renewable energy resources

  11. Risk-Limiting Dispatch for Integrating Renewable Power Ram Rajagopal

    E-Print Network [OSTI]

    into the power grid. The SO makes a sequence of decisions to balance the supply and load of electric power decision is based on the most recent available information, including demand, renewable power, weather technology, and renewable penetration. 1 Introduction States are setting ambitious goals for electricity from

  12. Renewable and Distributed Power in California Simplifying the...

    Open Energy Info (EERE)

    Distributed Power in California Simplifying the Regulatory Maze - Making the Path for Future Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Renewable...

  13. U.S. Renewable Energy Generation Up in First Half of 2013: EIA

    Office of Energy Efficiency and Renewable Energy (EERE)

    Renewable energy sources generated 14.2% of net U.S. electric power generation during the first six months of 2013, up from 13.6% the same time a year ago, according to data from the U.S. Energy Information Administration (EIA).

  14. Biomass Power Generation Market Capacity is Estimated to Reach...

    Open Energy Info (EERE)

    Biomass Power Generation Market Capacity is Estimated to Reach 122,331.6 MW by 2022 Home > Groups > Renewable Energy RFPs Wayne31jan's picture Submitted by Wayne31jan(150)...

  15. Evaluating Policies to Increase Electricity Generation from Renewable Energy

    E-Print Network [OSTI]

    Schmalensee, Richard

    Building on a review of experience in the United States and the European Union, this article advances four main propositions concerning policies aimed at increasing electricity generation from renewable energy. First, who ...

  16. Renewable Electricity Futures Study. Volume 2: Renewable Electricity Generation and Storage Technologies

    SciTech Connect (OSTI)

    Augustine, C.; Bain, R.; Chapman, J.; Denholm, P.; Drury, E.; Hall, D.G.; Lantz, E.; Margolis, R.; Thresher, R.; Sandor, D.; Bishop, N.A.; Brown, S.R.; Cada, G.F.; Felker, F.

    2012-06-01

    The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

  17. Renewable Electricity Futures Study. Volume 2. Renewable Electricity Generation and Storage Technologies

    SciTech Connect (OSTI)

    Augustine, Chad; Bain, Richard; Chapman, Jamie; Denholm, Paul; Drury, Easan; Hall, Douglas G.; Lantz, Eric; Margolis, Robert; Thresher, Robert; Sandor, Debra; Bishop, Norman A.; Brown, Stephen R.; Felker, Fort; Fernandez, Steven J.; Goodrich, Alan C.; Hagerman, George; Heath, Garvin; O'Neil, Sean; Paquette, Joshua; Tegen, Suzanne; Young, Katherine

    2012-06-15

    The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%–90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT). Learn more at the RE Futures website. http://www.nrel.gov/analysis/re_futures/

  18. GEOTHERMAL POWER GENERATION PLANT

    SciTech Connect (OSTI)

    Boyd, Tonya

    2013-12-01

    Oregon Institute of Technology (OIT) drilled a deep geothermal well on campus (to 5,300 feet deep) which produced 196oF resource as part of the 2008 OIT Congressionally Directed Project. OIT will construct a geothermal power plant (estimated at 1.75 MWe gross output). The plant would provide 50 to 75 percent of the electricity demand on campus. Technical support for construction and operations will be provided by OIT’s Geo-Heat Center. The power plant will be housed adjacent to the existing heat exchange building on the south east corner of campus near the existing geothermal production wells used for heating campus. Cooling water will be supplied from the nearby cold water wells to a cooling tower or air cooling may be used, depending upon the type of plant selected. Using the flow obtained from the deep well, not only can energy be generated from the power plant, but the “waste” water will also be used to supplement space heating on campus. A pipeline will be construction from the well to the heat exchanger building, and then a discharge line will be construction around the east and north side of campus for anticipated use of the “waste” water by facilities in an adjacent sustainable energy park. An injection well will need to be drilled to handle the flow, as the campus existing injection wells are limited in capacity.

  19. Predicting the Power Output of Distributed Renewable Energy Resources within a Broad Geographical Region

    E-Print Network [OSTI]

    Chalkiadakis, Georgios

    generators into the Smart Grid has emerged as a ma- jor challenge [16, 18]. The creation of Virtual Power Resources (DERs) to create the impression of a sin- gle "conventional" power plant, has been suggestedPredicting the Power Output of Distributed Renewable Energy Resources within a Broad Geographical

  20. Renewable Generation Requirement | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 - Oct. 7,DOERTIRegulatoryResidentialRenewable Fuel

  1. Efficiently Operating Wireless Nodes Powered by Renewable Energy Sources

    E-Print Network [OSTI]

    Gautam, Natarajan

    1 Efficiently Operating Wireless Nodes Powered by Renewable Energy Sources Natarajan Gautam Senior. The node uses energy harvesting in the sense that it is powered by batteries that are charged by renewable that is responsible for transmitting messages in a timely manner while being prudent about energy consumption

  2. Renewable Energy RFPs | OpenEI Community

    Open Energy Info (EERE)

    Renewable Energy RFPs Home > Renewable Energy RFPs > Posts by term > Renewable Energy RFPs Content Group Activity By term Q & A Feeds Term: Biomass Power Generation Market Type...

  3. Renewable Energy 32 (2007) 12431257 Methane generation in landfills

    E-Print Network [OSTI]

    Columbia University

    2007-01-01

    University, New York, NY 10027, USA Received 1 July 2005; accepted 15 April 2006 Available online 2 AugustRenewable Energy 32 (2007) 1243­1257 Methane generation in landfills Nickolas J. Themelis energy source, to generate electricity or heat. As of 2001, there were about one thousand landfills

  4. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    legality of state renewable energy policies, see Ferrey (in-state renewable generation? ” Energy Policy. 38: 1140-the development of renewable energy. ” Energy Policy. 31(8):

  5. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    wind power development." Renewable Energy. 33(8): 1854–1867.support mechanisms for renewable energy technologies usingdistributions. ” Renewable Energy. 35(6): Ferrey, S. 2006. “

  6. Biomass power and state renewable energy policies under electric industry restructuring

    E-Print Network [OSTI]

    Porter, Kevin; Wiser, Ryan

    2000-01-01

    POWER AND STATE RENEWABLE ENERGY POLICIES UNDER ELECTRICPROVISIONS IN STATE RENEWABLE ENERGY POLICIES Of the 17that have adopted renewable energy policy measures as part

  7. Electrokinetic Power Generation from Liquid Water Microjets

    E-Print Network [OSTI]

    Duffin, Andrew M.

    2008-01-01

    Electrokinetic Power Generation from Liquid Water MicrojetsElectrokinetic power generation using liquid water microjetscalculations of power generation and conversion efficiency.

  8. The integration of renewable energy sources into electric power transmission systems

    SciTech Connect (OSTI)

    Barnes, P.R.; Dykas, W.P.; Kirby, B.J.; Purucker, S.L. [Oak Ridge National Lab., TN (United States); Lawler, J.S. [Univ. of Tennessee, Knoxville, TN (United States)

    1995-07-01

    Renewable energy technologies such as photovoltaics, solar thermal power plants, and wind turbines are nonconventional, environmentally attractive sources of energy that can be considered for electric power generation. Many of the areas with abundant renewable energy resources (very sunny or windy areas) are far removed from major load centers. Although electrical power can be transmitted over long distances of many hundreds of miles through high-voltage transmission lines, power transmission systems often operate near their limits with little excess capacity for new generation sources. This study assesses the available capacity of transmission systems in designated abundant renewable energy resource regions and identifies the requirements for high-capacity plant integration in selected cases. In general, about 50 MW of power from renewable sources can be integrated into existing transmission systems to supply local loads without transmission upgrades beyond the construction of a substation to connect to the grid. Except in the Southwest, significant investment to strengthen transmission systems will be required to support the development of high-capacity renewable sources of 1000 MW or greater in areas remote from major load centers. Cost estimates for new transmission facilities to integrate and dispatch some of these high-capacity renewable sources ranged from several million dollars to approximately one billion dollars, with the latter figure an increase in total investment of 35%, assuming that the renewable source is the only user of the transmission facility.

  9. Automotive Power Generation and Control

    E-Print Network [OSTI]

    Caliskan, Vahe

    This paper describes some new developments in the application of power electronics to automotive power generation and control. A new load-matching technique is introduced that uses a simple switched-mode rectifier to achieve ...

  10. Tax Credits and Renewable Generation (released in AEO2009)

    Reports and Publications (EIA)

    2009-01-01

    Tax incentives have been an important factor in the growth of renewable generation over the past decade, and they could continue to be important in the future. The Energy Tax Act of 1978 (Public Law 95-618) established ITCs for wind, and EPACT92 established the Renewable Electricity Production Credit (more commonly called the PTC) as an incentive to promote certain kinds of renewable generation beyond wind on the basis of production levels. Specifically, the PTC provided an inflation-adjusted tax credit of 1.5 cents per kilowatthour for generation sold from qualifying facilities during the first 10 years of operation. The credit was available initially to wind plants and facilities that used closed-loop biomass fuels and were placed in service after passage of the Act and before June 1999.

  11. Demonstration of Security Benefits of Renewable Generation at FE Warren Air Force Base

    SciTech Connect (OSTI)

    Warwick, William M.; Myers, Kurt; Seifert, Gary

    2010-12-31

    Report detailing field demonstration of security benefits of renewable generation at FE Warren Air Force Base.

  12. Eastern Renewable Generation Integration Study: Flexibility and High Penetrations of Wind and Solar; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Bloom, Aaron; Townsend, Aaron; Palchak, David

    2015-07-29

    Balancing wind and solar in a model is relatively easy. All you need to do is assume a very large system with infinite flexibility! But what if you don't have an infinitely flexible system? What if there are thousands of generators nestled in a handful of regions that are unlikely to change their operational practices? Would you still have enough flexibility to balance hundreds of gigawatts of wind and solar at a 5 minute level? At NREL, we think we can, and our industry partners agree. This presentation was presented at the IEEE Power and Energy Society General Meeting by Aaron Bloom, highlighting results of the Eastern Renewable Generation Integration Study.

  13. Renewable Generation Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, New York: Energy ResourcesProducts LLC JumpTechSupplyGeneration

  14. The Industrialization of Thermoelectric Power Generation Technology...

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

    The Industrialization of Thermoelectric Power Generation Technology The Industrialization of Thermoelectric Power Generation Technology Presents module and system requirements for...

  15. Risk-Limiting Dispatch for Integrating Renewable Power Ram Rajagopal

    E-Print Network [OSTI]

    Varaiya, Pravin

    clean energy. California's goal is 33% by 2020. The goals are promoted by `renewable portfolio standardsRisk-Limiting Dispatch for Integrating Renewable Power Ram Rajagopal Stanford Univ ramr-stage, stochastic de- cision problem. At each stage, the system operator (SO) purchases forward energy and reserve

  16. Renewable Energy Generation Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA)OptionsEquivalent URIGum Pvt LtdReivaxLtdGeneration

  17. NREL: Transmission Grid Integration - Eastern Renewable Generation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFuture for SolarTechnologyNewData

  18. Role of Energy Storage with Renewable Electricity Generation

    SciTech Connect (OSTI)

    Denholm, P.; Ela, E.; Kirby, B.; Milligan, M.

    2010-01-01

    Renewable energy sources, such as wind and solar, have vast potential to reduce dependence on fossil fuels and greenhouse gas emissions in the electric sector. Climate change concerns, state initiatives including renewable portfolio standards, and consumer efforts are resulting in increased deployments of both technologies. Both solar photovoltaics (PV) and wind energy have variable and uncertain (sometimes referred to as intermittent) output, which are unlike the dispatchable sources used for the majority of electricity generation in the United States. The variability of these sources has led to concerns regarding the reliability of an electric grid that derives a large fraction of its energy from these sources as well as the cost of reliably integrating large amounts of variable generation into the electric grid. In this report, we explore the role of energy storage in the electricity grid, focusing on the effects of large-scale deployment of variable renewable sources (primarily wind and solar energy).

  19. Sample Documents for On-Site Renewable Power Purchase Agreements

    Broader source: Energy.gov [DOE]

    The Federal Energy Management Program (FEMP) works with federal agencies and partners to assemble sample documents from past on-site renewable power purchase agreement (PPA) projects to help streamline the PPA process.

  20. Mesofluidic magnetohydrodynamic power generation

    E-Print Network [OSTI]

    Fucetola, Jay J

    2012-01-01

    Much of the previous research into magnetohydrodynamics has involved large-scale systems. This thesis explores the miniaturization and use of devices to convert the power dissipated within an expanding gas flow into ...

  1. GEOTHERMAL POWER GENERATION PLANT

    Broader source: Energy.gov [DOE]

    Project objectives: Drilling a deep geothermal well on the Oregon Institute of Technology campus, Klamath Falls, OR. Constructing a geothermal power plant on the Oregon Institute of Technology campus.

  2. In smart grid, as renewable energy becomes a significant portion of the generation mix, effective approaches are needed to manage volatility and uncertainty associated with renewable such as wind and solar. Also the proliferation of demand

    E-Print Network [OSTI]

    DeMara, Ronald F.

    In smart grid, as renewable energy becomes a significant portion of the generation mix, effective power systems with smart grid technologies, in particular, renewable energy and demand response SCUC models are particularly useful for modeling the large-scale integration of renewable energy

  3. Topic 5: Renewable Power 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    in Smart Grid 3 · We are interested in power plants with low carbon footprint: · Both CO2 and CH4 in Smart Grid 5 · Carbon footprint is also defined for power plants: · Conventional coal combustion hasTopic 5: Renewable Power 1Networking and Distributed Systems Department of Electrical & Computer

  4. Linkages from DOE's Wind Energy Program to Commercial Renewable...

    Energy Savers [EERE]

    Linkages from DOE's Wind Energy Program to Commercial Renewable Power Generation Linkages from DOE's Wind Energy Program to Commercial Renewable Power Generation The study examines...

  5. RF power generation

    E-Print Network [OSTI]

    Carter, R G

    2011-01-01

    This paper reviews the main types of r.f. power amplifiers which are, or may be, used for particle accelerators. It covers solid-state devices, tetrodes, inductive output tubes, klystrons, magnetrons, and gyrotrons with power outputs greater than 10 kW c.w. or 100 kW pulsed at frequencies from 50 MHz to 30 GHz. Factors affecting the satisfactory operation of amplifiers include cooling, matching and protection circuits are discussed. The paper concludes with a summary of the state of the art for the different technologies.

  6. Supplementary Information Potential for Electricity Generation from Renewable Resources and Levelized Cost of Electricity (LCOE)

    E-Print Network [OSTI]

    Suo, Zhigang

    Supplementary Information Potential for Electricity Generation from Renewable Resources and Levelized Cost of Electricity (LCOE) Electrical energy can be generated from renewable resources the potential to meet the worldwide demand of electricity and they contribute to the total generation

  7. Abstract--Wind energy is the fastest growing source of renewable energy in the power industry and it will continue to

    E-Print Network [OSTI]

    Tolbert, Leon M.

    1 Abstract--Wind energy is the fastest growing source of renewable energy in the power industry fault conditions. Index Terms--induction generators, wind power generation, fault tolerance. I of energy. Wind energy is the fastest growing source of renewable energy in the power industry

  8. Renewable Electricity Generation and Delivery at the Sacramento...

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

    This funding, combined with 500,000 from the California Energy Commission (CEC), helped build a solar power system, biogas generation from waste systems, and anaerobic digestion...

  9. Renewable Electricity Generation and Delivery at the Sacramento...

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

    from the California Energy Commission (CEC), helped build a solar power system, biogas generation from waste systems, and anaerobic digestion systems at dairy facilities,...

  10. Cascade Failures from Distributed Generation in Power Grids

    E-Print Network [OSTI]

    Scala, Antonio; Scoglio, Caterina

    2012-01-01

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

  11. Renewable Power and Light | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, New York: Energy ResourcesProducts LLCProject JumpRenewable

  12. Ridgewood Renewable Power LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, New York:Virginia: EnergyRidgeview Biomass FacilityRenewable

  13. Spin Seebeck power generators

    SciTech Connect (OSTI)

    Cahaya, Adam B.; Tretiakov, O. A. [Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Bauer, Gerrit E. W. [Institute for Materials Research and WPI-AIMR, Tohoku University, Sendai 980-8577 (Japan); Kavli Institute of NanoScience, TU Delft Lorentzweg 1, 2628 CJ Delft (Netherlands)

    2014-01-27

    We derive expressions for the efficiency and figure of merit of two spin caloritronic devices based on the spin Seebeck effect (SSE), i.e., the generation of spin currents by a temperature gradient. The inverse spin Hall effect is conventionally used to detect the SSE and offers advantages for large area applications. We also propose a device that converts spin current into electric one by means of a spin-valve detector, which scales favorably to small sizes and approaches a figure of merit of 0.5 at room temperature.

  14. Production Tax Credit for Renewable Electricity Generation (released in AEO2005)

    Reports and Publications (EIA)

    2005-01-01

    In the late 1970s and early 1980s, environmental and energy security concerns were addressed at the federal level by several key pieces of energy legislation. Among them, the Public Utility Regulatory Policies Act of 1978 (PURPA), P.L. 95-617, required regulated power utilities to purchase alternative electricity generation from qualified generating facilities, including small-scale renewable generators; and the Investment Tax Credit (ITC), P.L. 95-618, part of the Energy Tax Act of 1978, provided a 10% federal tax credit on new investment in capital-intensive wind and solar generation technologies.

  15. Renewable Energy and Combined Heat and Power Resources in the UK

    E-Print Network [OSTI]

    Watson, Andrew

    Renewable Energy and Combined Heat and Power Resources in the UK Jim Watson, Julia Hertin, Tom;Renewable Energy and Combined Heat and Power Resources in the UK Jim Watson, Julia Hertin and Tom Randall........................................................................................................................3 2. Renewable energy sources

  16. Ocean Renewable Power Co (ORPC) (TRL 7 8 System)- TidGen (TM) Power System Commercialization Project

    Broader source: Energy.gov [DOE]

    Ocean Renewable Power Co (ORPC) (TRL 7 8 System) - TidGen (TM) Power System Commercialization Project

  17. Fuel Cell Electric Vehicle Powered by Renewable Hydrogen

    ScienceCinema (OSTI)

    None

    2013-05-29

    The National Renewable Energy Laboratory (NREL) recently received a Borrego fuel cell electric vehicle (FCEV) on loan from Kia for display at a variety of summer events. The Borrego is fueled using renewable hydrogen that is produced and dispensed at NREL's National Wind Technology Center near Boulder, Colorado. The hydrogen dispensed at the station is produced via renewable electrolysis as part of the wind-to-hydrogen project, which uses wind turbines and photovoltaic arrays to power electrolyzer stacks that split water into hydrogen and oxygen. The FCEV features state-of-the-art technology with zero harmful emissions.

  18. PROGRAMME SPECIFICATION POSTGRADUATE PROGRAMMES Programme name Renewable Energy and Power Systems Management

    E-Print Network [OSTI]

    Weyde, Tillman

    1 PROGRAMME SPECIFICATION ­ POSTGRADUATE PROGRAMMES KEY FACTS Programme name Renewable Energy energy, it is evident that power engineers of the future have to be mindful of a variety of disciplines and energy generation. The aims are to produce graduates of a high calibre with the right skills

  19. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    Mexico: “…generation of electricity through the use of renewable energyMexico: Legislation passed in March 2007 defines a renewable energyrenewable energy standards or any voluntary clean electricity market or voluntary clean electricity program. ” New Mexico

  20. Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation

    E-Print Network [OSTI]

    Eto, Joseph H.

    2011-01-01

    Integration of Variable Renewable Generation The report isISO (CAISO). 2007. Integration of Renewable Resources.recommendations for integrating renewable resources on the

  1. United Power- Renewable Energy Rebate Program

    Broader source: Energy.gov [DOE]

    United Power is providing rebates to their customers for the purchase of photovoltaic (PV), wind, and solar water heating systems. These incentives are separate from the rebates provided by the...

  2. 1128 IEEE TRANSACTIONS ON SMART GRID, VOL. 6, NO. 3, MAY 2015 Service Restoration for a Renewable-Powered

    E-Print Network [OSTI]

    Bornemann, Jens

    of distributed generators. Index Terms--Microgrid (MG), power network configuration, renewable power sources://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TSG.2014.2373272 c(.) Operation cost of each switch demand can be fulfilled partially. h (h ) State index. i Load point index (subscript). j Distributed generator index

  3. Solid state pulsed power generator

    DOE Patents [OSTI]

    Tao, Fengfeng; Saddoughi, Seyed Gholamali; Herbon, John Thomas

    2014-02-11

    A power generator includes one or more full bridge inverter modules coupled to a semiconductor opening switch (SOS) through an inductive resonant branch. Each module includes a plurality of switches that are switched in a fashion causing the one or more full bridge inverter modules to drive the semiconductor opening switch SOS through the resonant circuit to generate pulses to a load connected in parallel with the SOS.

  4. Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation

    E-Print Network [OSTI]

    Low, Steven H.

    Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan to handle the un- certainties of renewable generation. It is expected that a large number of deferrable for the random fluctuations in renewable generation. Work on deferrable load control falls into two categories

  5. Renewable Electricity Futures Study Volume 2: Renewable Electricity Generation and Storage Technologies

    Broader source: Energy.gov [DOE]

    This volume includes chapters discussing biopower, geothermal, hydropower, ocean, solar, wind, and storage technologies. Each chapter includes a resource availability estimate, technology cost and performance characterization, discussions of output characteristics and grid service possibilities, large-scale production and deployment issues, and barriers to high penetration along with possible responses to them. Only technologies that are currently commercially available—biomass, geothermal, hydropower, solar PV, CSP, and wind-powered systems—are included in the modeling analysis. Some of these renewable technologies—such as run-of-river hydropower, onshore wind, hydrothermal geothermal, dedicated and co-fired-with-coal biomass—are relatively mature and well-characterized. Other renewable technologies—such as fixed-bottom offshore wind, solar PV, and solar CSP—are at earlier stages of deployment with greater potential for future technology advancements over the next 40 years.

  6. INTEGRATED CONTROL OF NEXT GENERATION POWER SYSTEM

    SciTech Connect (OSTI)

    2010-02-28

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

  7. Quenching China's Thirst for Renewable Power: Water Implications of China's Renewable Development

    E-Print Network [OSTI]

    Zheng, Nina

    2014-01-01

    illustrate that future renewable energy development will beillustrate that future renewable energy development will be

  8. Designing and Managing Datacenters Powered by Renewable Energy

    E-Print Network [OSTI]

    societal demand for cleaner products and services, several companies have announced plans to build "green" datacenters, i.e. datacenters partially or completely powered by renewables such as solar or wind energy an existing nearby plant (co-location). For example, Apple and McGraw-Hill have built large solar arrays

  9. Overview of village scale, renewable energy powered desalination

    SciTech Connect (OSTI)

    Thomas, K.E.

    1997-04-01

    An overview of desalination technologies is presented, focusing on those technologies appropriate for use in remote villages, and how they can be powered using renewable energy. Technologies are compared on the basis of capital cost, lifecycle cost, operations and maintenance complexity, and energy requirements. Conclusions on the appropriateness of different technologies are drawn, and recommendations for future research are given.

  10. Renewable Energy Scheduling for Fading Channels with Maximum Power Constraint

    E-Print Network [OSTI]

    Greenberg, Albert

    Renewable Energy Scheduling for Fading Channels with Maximum Power Constraint Zhe Wang Electrical--In this paper, we develop efficient algorithm to obtain the optimal energy schedule for fading channel with energy harvesting. We assume that the side information of both the channel states and energy harvesting

  11. Ocean Renewable Power Company | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to:Information 3rd|Northfork ElectricName01988) | OpenThePower Company

  12. Renewable Energy, Nuclear Power and Galileo: Do Scientists Have a Duty to Expose Popular Misconceptions?

    E-Print Network [OSTI]

    Hansen, James E.

    1 OPINION Renewable Energy, Nuclear Power and Galileo: Do Scientists Have a Duty to Expose Popular misconception discussed below concerns the fallacy that renewable energy is rapidly supplanting conventional energy. Total non-hydro renewables today offset o

  13. Overview of Thermoelectric Power Generation Technologies in Japan...

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

    Thermoelectric Power Generation Technologies in Japan Overview of Thermoelectric Power Generation Technologies in Japan Discusses thermoelectric power generation technologies as...

  14. Next Generation Geothermal Power Plants

    SciTech Connect (OSTI)

    Brugman, John; Hattar, Mai; Nichols, Kenneth; Esaki, Yuri

    1995-09-01

    A number of current and prospective power plant concepts were investigated to evaluate their potential to serve as the basis of the next generation geothermal power plant (NGGPP). The NGGPP has been envisaged as a power plant that would be more cost competitive (than current geothermal power plants) with fossil fuel power plants, would efficiently use resources and mitigate the risk of reservoir under-performance, and minimize or eliminate emission of pollutants and consumption of surface and ground water. Power plant concepts were analyzed using resource characteristics at ten different geothermal sites located in the western United States. Concepts were developed into viable power plant processes, capital costs were estimated and levelized busbar costs determined. Thus, the study results should be considered as useful indicators of the commercial viability of the various power plants concepts that were investigated. Broadly, the different power plant concepts that were analyzed in this study fall into the following categories: commercial binary and flash plants, advanced binary plants, advanced flash plants, flash/binary hybrid plants, and fossil/geothed hybrid plants. Commercial binary plants were evaluated using commercial isobutane as a working fluid; both air-cooling and water-cooling were considered. Advanced binary concepts included cycles using synchronous turbine-generators, cycles with metastable expansion, and cycles utilizing mixtures as working fluids. Dual flash steam plants were used as the model for the commercial flash cycle. The following advanced flash concepts were examined: dual flash with rotary separator turbine, dual flash with steam reheater, dual flash with hot water turbine, and subatmospheric flash. Both dual flash and binary cycles were combined with other cycles to develop a number of hybrid cycles: dual flash binary bottoming cycle, dual flash backpressure turbine binary cycle, dual flash gas turbine cycle, and binary gas turbine cycle. Results of this study indicate that dual flash type plants are preferred at resources with temperatures above 400 F. Closed loop (binary type) plants are preferred at resources with temperatures below 400 F. A rotary separator turbine upstream of a dual flash plant can be beneficial at Salton Sea, the hottest resource, or at high temperature resources where there is a significant variance in wellhead pressures from well to well. Full scale demonstration is required to verify cost and performance. Hot water turbines that recover energy from the spent brine in a dual flash cycle improve that cycle's brine efficiency. Prototype field tests of this technology have established its technical feasibility. If natural gas prices remain low, a combustion turbine/binary hybrid is an economic option for the lowest temperature sites. The use of mixed fluids appear to be an attractive low risk option. The synchronous turbine option as prepared by Barber-Nichols is attractive but requires a pilot test to prove cost and performance. Dual flash binary bottoming cycles appear promising provided that scaling of the brine/working fluid exchangers is controllable. Metastable expansion, reheater, Subatmospheric flash, dual flash backpressure turbine, and hot dry rock concepts do not seem to offer any cost advantage over the baseline technologies. If implemented, the next generation geothermal power plant concept may improve brine utilization but is unlikely to reduce the cost of power generation by much more than 10%. Colder resources will benefit more from the development of a next generation geothermal power plant than will hotter resources. All values presented in this study for plant cost and for busbar cost of power are relative numbers intended to allow an objective and meaningful comparison of technologies. The goal of this study is to assess various technologies on an common basis and, secondarily, to give an approximate idea of the current costs of the technologies at actual resource sites. Absolute costs at a given site will be determined by the specifics of a given pr

  15. Decision-Support Software for Grid Operators: Transmission Topology Control for Infrastructure Resilience to the Integration of Renewable Generation

    SciTech Connect (OSTI)

    2012-03-16

    GENI Project: The CRA team is developing control technology to help grid operators more actively manage power flows and integrate renewables by optimally turning on and off entire power lines in coordination with traditional control of generation and load resources. The control technology being developed would provide grid operators with tools to help manage transmission congestion by identifying the facilities whose on/off status must change to lower generation costs, increase utilization of renewable resources and improve system reliability. The technology is based on fast optimization algorithms for the near to real-time change in the on/off status of transmission facilities and their software implementation.

  16. Optimal transition from coal to gas and renewable power under capacity constraints and adjustment costs

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Optimal transition from coal to gas and renewable power under capacity constraints and adjustment existing coal power plants to gas and renewable power under a carbon budget. It solves a model of polluting, exhaustible resources with capacity constraints and adjustment costs (to build coal, gas, and renewable power

  17. Biomass gasification for gas turbine-based power generation

    SciTech Connect (OSTI)

    Paisley, M.A.; Anson, D.

    1998-04-01

    The Biomass Power Program of the US Department of Energy (DOE) has as a major goal the development of cost-competitive technologies for the production of power from renewable biomass crops. The gasification of biomass provides the potential to meet this goal by efficiently and economically producing a renewable source of a clean gaseous fuel suitable for use in high-efficiency gas turbines. This paper discusses the development and first commercial demonstration of the Battelle high-throughput gasification process for power generation systems. Projected process economics are presented along with a description of current experimental operations coupling a gas turbine power generation system to the research scale gasifier and the process scaleup activities in Burlington, Vermont.

  18. Quenching China's Thirst for Renewable Power: Water Implications of China's Renewable Development

    E-Print Network [OSTI]

    Zheng, Nina

    2014-01-01

    to achieve China’s planned renewable energy development areillustrate that future renewable energy development will behas increasingly looked to renewable energy for meeting its

  19. Thermoelectric power generator for variable thermal power source

    DOE Patents [OSTI]

    Bell, Lon E; Crane, Douglas Todd

    2015-04-14

    Traditional power generation systems using thermoelectric power generators are designed to operate most efficiently for a single operating condition. The present invention provides a power generation system in which the characteristics of the thermoelectrics, the flow of the thermal power, and the operational characteristics of the power generator are monitored and controlled such that higher operation efficiencies and/or higher output powers can be maintained with variably thermal power input. Such a system is particularly beneficial in variable thermal power source systems, such as recovering power from the waste heat generated in the exhaust of combustion engines.

  20. Technical Manual for the SAM Biomass Power Generation Model

    SciTech Connect (OSTI)

    Jorgenson, J.; Gilman, P.; Dobos, A.

    2011-09-01

    This technical manual provides context for the implementation of the biomass electric power generation performance model in the National Renewable Energy Laboratory's (NREL's) System Advisor Model (SAM). Additionally, the report details the engineering and scientific principles behind the underlying calculations in the model. The framework established in this manual is designed to give users a complete understanding of behind-the-scenes calculations and the results generated.

  1. Renewable build-up pathways for the US: Generation costs are not system costs

    E-Print Network [OSTI]

    Becker, Sarah; Andresen, Gorm B; Jacobson, Mark Z; Schramm, Stefan; Greiner, Martin

    2014-01-01

    The transition to a future electricity system based primarily on wind and solar PV is examined for all regions in the contiguous US. We present optimized pathways for the build-up of wind and solar power for least backup energy needs as well as for least cost obtained with a simplified, lightweight model based on long-term high resolution weather-determined generation data. In the absence of storage, the pathway which achieves the best match of generation and load, thus resulting in the least backup energy requirements, generally favors a combination of both technologies, with a wind/solar PV energy mix of about 80/20 in a fully renewable scenario. The least cost development is seen to start with 100% of the technology with the lowest average generation costs first, but with increasing renewable installations, economically unfavorable excess generation pushes it toward the minimal backup pathway. Surplus generation and the entailed costs can be reduced significantly by combining wind and solar power, and/or a...

  2. State & Local Renewable Power Resources | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideoSolarSpace-BasedFact SheetRenewable Power

  3. Renewable Energy in China: Xiao Qing Dao Village Power Wind/Diesel Hybrid Pilot Project

    SciTech Connect (OSTI)

    Not Available

    2006-01-01

    In 2000, DOE/NREL and the State Power Corporation of China (SPCC) developed a pilot project to electrify Xiao Qing Dao, a small island located in China's Yellow Sea. The project demonstrates the practicality of renewable energy systems for medium-scale, off-grid applications. It consists of four 10 k-W wind turbines connected to a 30-kW diesel generator, a 40-kW inverter and a battery bank.

  4. Thermoelectric Power Generation System with Loop Thermosyphon...

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

    Generation System with Loop Thermosyphon in Future High Efficiency Hybrid Vehicles Thermoelectric Power Generation System with Loop Thermosyphon in Future High Efficiency Hybrid...

  5. Local control of reactive power by distributed photovoltaic generators

    SciTech Connect (OSTI)

    Chertkov, Michael; Turitsyn, Konstantin; Sulc, Petr; Backhaus, Scott

    2010-01-01

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

  6. Converting Limbo Lands to Energy-Generating Stations: Renewable Energy Technologies on Underused, Formerly Contaminated Sites

    SciTech Connect (OSTI)

    Mosey, G.; Heimiller, D.; Dahle, D.; Vimmerstedt, L.; Brady-Sabeff, L.

    2007-10-01

    This report addresses the potential for using 'Limbo Lands' (underused, formerly contaminated sites, landfills, brownfields, abandoned mine lands, etc. ) as sites for renewable energy generating stations.

  7. Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation

    E-Print Network [OSTI]

    Low, Steven H.

    -time so as to ease the incorporation of renewable energy into the grid, and so are recognized as priority deferrable loads in order to compensate for the random fluctuations of renewable energy. However, realizingReal-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan

  8. Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation

    E-Print Network [OSTI]

    Low, Steven H.

    of renewable energy into the grid, and so are recognized as priority areas for the future smart grid by both for the random fluctuations of renewable energy. However, realizing the potential of deferrable loads re- quiresReal-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan

  9. Water energy nexus in biofuels production and renewable based power

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    is the FT-fuels, with other options being second generation bioethanol via gasification and catalytic that transform them into power and a number of common fuels, not restricted to bioethanol and biodiesel

  10. Pseudorandom sequences constructed by the power generator

    E-Print Network [OSTI]

    Katalin, Gyarmati

    Pseudorandom sequences constructed by the power generator Katalin Gyarmati # Abstract We study the pseudorandom properties of the power generator (which includes as special cases the RSA generator and the Blum- Blum-Shub generator). In order to estimate the pseudorandom mea- sures character sums with exponential

  11. Cascading Closed Loop Cycle Power Generation 

    E-Print Network [OSTI]

    Romero, M.

    2008-01-01

    the combustion of fossil fuels. The WOWGen® power plant inherently reduces emissions and Greenhouse Gases (GHG) by producing power from waste heat without consuming fuel, thus increasing the overall energy efficiency of any industrial plant or power generation...

  12. Renewable Electricity Futures Study Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning

    Office of Energy Efficiency and Renewable Energy (EERE)

    This volume focuses on the role of variable renewable generation in creating challenges to the planning and operations of power systems and the expansion of transmission to deliver electricity from remote resources to load centers. The technical and institutional changes to power systems that respond to these challenges are, in many cases, underway, driven by the economic benefits of adopting more modern communication, information, and computation technologies that offer significant operational cost savings and improved asset utilization. While this volume provides background information and numerous references, the reader is referred to the literature for more complete tutorials.

  13. Utility Optimal Scheduling in Energy Cooperation Networks Powered by Renewable Energy

    E-Print Network [OSTI]

    Utility Optimal Scheduling in Energy Cooperation Networks Powered by Renewable Energy Congshi Hu the problem of energy and data control in energy cooperation networks powered by renewable energy Stations (BSs) with renewable energy has been proved technically feasible [1]. However, the harvested

  14. CalRENEW-1 Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy Electricals Ltd BHEL JumpCMNA Power Jump to:OffshoreCalRENEW-1

  15. Variable Renewable Generation Impact on Operating Reserves (Presentation)

    SciTech Connect (OSTI)

    Milligan, M.

    2011-05-01

    This presentation describes some of NREL's latest research on grid integration of renewables, and also describes some of the tools used for these analyses.

  16. Advanced Power Batteries for Renewable Energy Applications 3.09

    SciTech Connect (OSTI)

    Rodney Shane

    2011-09-30

    This report describes the research that was completed under project title â?? Advanced Power Batteries for Renewable Energy Applications 3.09, Award Number DE-EE0001112. The report details all tasks described in the Statement of Project Objectives (SOPO). The SOPO includes purchasing of test equipment, designing tooling, building cells and batteries, testing all variables and final evaluation of results. The SOPO is included. There were various types of tests performed during the project, such as; gas collection, float current monitoring, initial capacity, high rate partial state of charge (HRPSoC), hybrid pulse power characterization (HPPC), high rate capacity, corrosion, software modeling and solar life cycle tests. The grant covered a period of two years starting October 1, 2009 and ending September 30, 2011.

  17. Generating power with waste wood

    SciTech Connect (OSTI)

    Atkins, R.S.

    1995-02-01

    Among the biomass renewables, waste wood has great potential with environmental and economic benefits highlighting its resume. The topics of this article include alternate waste wood fuel streams; combustion benefits; waste wood comparisons; waste wood ash; pilot scale tests; full-scale test data; permitting difficulties; and future needs.

  18. Central power generation versus distributed generation e An air quality assessment in the South Coast Air Basin of California

    E-Print Network [OSTI]

    Dabdub, Donald

    , central generation concentrates emissions in a small area, whereas DG spreads emissions throughout an urban air basin. In contrast, conventional, centralized power plants tend to be located in remote areas by the year 2020. The intermittent nature of renewable sources like wind and solar power may require

  19. Co-Designing Sustainable Communities: The Identification and Incorporation of Social Performance Metrics in Native American Sustainable Housing and Renewable Energy System Design

    E-Print Network [OSTI]

    Shelby, Ryan

    2013-01-01

    renewable energy power generation from wind power to provideExercise and Human Power Generation Native Shrubs in theFloors (No Wood) Human Power Generation Building Materials

  20. 1. Multi-Agent Systems, Intelligent Robotics, Mechatronics, and General Control Areas. 2. Power Electronics, Renewable Energy, and Smart Grid.

    E-Print Network [OSTI]

    Wu, Yih-Min

    , and General Control Areas. 2. Power Electronics, Renewable Energy, and Smart Grid. 3. Computer Science

  1. Multi-Agent Systems and Control, Intelligent Robotics, and Cybernetics. Power Electronics, Renewable Energy, and Smart Grid.

    E-Print Network [OSTI]

    Wu, Yih-Min

    . Power Electronics, Renewable Energy, and Smart Grid. Computer Science and Engineering. Embedded Systems

  2. EC417 --Electric Energy, Adapting to Renewable Resources Brief History of Power Systems (the great AC-DC battle)

    E-Print Network [OSTI]

    (generation, transmission, distribution -- electric motors and other loads) · Power Plants with emphasis to the introduction of renewables (Photovoltaics, wind, etc.) · Development of the "Smart Grid" · Electric Vehicles - An Introduction (Third Edition) , CRC Press, 2012 Grading Policy: Midterm 30% Final 45% Homework / Short Papers 20

  3. State Renewable Electricity Profiles

    Reports and Publications (EIA)

    2012-01-01

    Presents a summary of current and recent historical data for the renewable electric power industry. The data focuses on net summer capacity and net generation for each type of renewable generator, as well as fossil-fired and nuclear power plant types, for the period 2006 through 2010.

  4. Power flow tracing in a simplified highly renewable European electricity network

    E-Print Network [OSTI]

    Tranberg, Bo; Rodriguez, Rolando A; Andresen, Gorm B; Schäfer, Mirko; Greiner, Martin

    2015-01-01

    The increasing transmission capacity needs in a future energy system raise the question how associated costs should be allocated to the users of a strengthened power grid. In contrast to straightforward oversimplified methods, a flow tracing based approach provides a fair and consistent nodal usage and thus cost assignment of transmission investments. This technique follows the power flow through the network and assigns the link capacity usage to the respective sources or sinks using a diffusion-like process, thus taking into account the underlying network structure and injection pattern. As a showcase, we apply power flow tracing to a simplified model of the European electricity grid with a high share of renewable wind and solar power generation, based on long-term weather and load data with an hourly temporal resolution.

  5. Next-Generation Power Electronics: Reducing Energy Waste and...

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

    Next-Generation Power Electronics: Reducing Energy Waste and Powering the Future Next-Generation Power Electronics: Reducing Energy Waste and Powering the Future January 15, 2014 -...

  6. Agile Frequency Scaling for Adaptive Power Allocation in Many-core Systems Powered by Renewable Energy Sources

    E-Print Network [OSTI]

    Yang, Mei

    Agile Frequency Scaling for Adaptive Power Allocation in Many-core Systems Powered by Renewable problem in this paper. We attempt to solve this problem by proposing an Adaptive Power Allocation have to undergo a significant change when a renewable energy source is scavenging. APAT has a linear

  7. Transmission Pricing Issues for Electricity Generation From Renewable Resources

    Reports and Publications (EIA)

    1999-01-01

    This article discusses how the resolution of transmission pricing issues which have arisen under the Federal Energy Regulatory Commission's (FERC) open access environment may affect the prospects for renewable-based electricity.

  8. Thermoelectric power generator with intermediate loop

    DOE Patents [OSTI]

    Bell, Lon E; Crane, Douglas Todd

    2013-05-21

    A thermoelectric power generator is disclosed for use to generate electrical power from heat, typically waste heat. An intermediate heat transfer loop forms a part of the system to permit added control and adjustability in the system. This allows the thermoelectric power generator to more effectively and efficiently generate power in the face of dynamically varying temperatures and heat flux conditions, such as where the heat source is the exhaust of an automobile, or any other heat source with dynamic temperature and heat flux conditions.

  9. Thermoelectric power generator with intermediate loop

    DOE Patents [OSTI]

    Bel,; Lon E. (Altadena, CA); Crane, Douglas Todd (Pasadena, CA)

    2009-10-27

    A thermoelectric power generator is disclosed for use to generate electrical power from heat, typically waste heat. An intermediate heat transfer loop forms a part of the system to permit added control and adjustability in the system. This allows the thermoelectric power generator to more effectively and efficiently generate power in the face of dynamically varying temperatures and heat flux conditions, such as where the heat source is the exhaust of an automobile, or any other heat source with dynamic temperature and heat flux conditions.

  10. FUTURE POWER GRID INITIATIVE Next Generation Network

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Next Generation Network Simulations for Power System Applications resources. To operate the future power grids, these will need to take into account: » the integration (509) 372-6575 jason.fuller@pnnl.gov ABOUT FPGI The Future Power Grid Initiative (FPGI) will deliver

  11. PowerOptions RFP

    Broader source: Energy.gov [DOE]

    PowerOptions seeks proposals from qualified and experienced renewable energy project developers interested in providing renewable energy and Renewable Energy Credit (RECs) generated from renewable energy projects located in or deliverable to the ISO-NE.

  12. Renewable Electricity Futures: Operational Analysis of the Western...

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

    of integrating large amounts of renewable electricity generation into the U.S. power system (Mai et al. 2012). RE Futures examined renewable energy resources, technical issues...

  13. Deferrable Load Scheduling in a Stand-alone Power System with Renewable Energy Sources and a

    E-Print Network [OSTI]

    Chang, Cheng-Shang

    Deferrable Load Scheduling in a Stand-alone Power System with Renewable Energy Sources.O.C. Email: lds@cs.nthu.edu.tw Abstract--Renewable energy resources are environmentally friendly and have in such a system is to effectively utilize renewable energy sources so that the loads can be served as quickly

  14. Load Scheduling and Power Trading in Systems with High Penetration of Renewable Energy

    E-Print Network [OSTI]

    Wong, Vincent

    Load Scheduling and Power Trading in Systems with High Penetration of Renewable Energy Resources with high penetration of renewable energy resources (RERs). We adopt approximate dynamic programming friendly renewable energy resources (RERs). Regulations have been passed to increase the pro- duction

  15. Synchrophasor Applications for Wind Power Generation

    SciTech Connect (OSTI)

    Muljadi, E.; Zhang, Y. C.; Allen, A.; Singh, M.; Gevorgian, V.; Wan, Y. H.

    2014-02-01

    The U.S. power industry is undertaking several initiatives that will improve the operations of the electric power grid. One of those is the implementation of wide-area measurements using phasor measurement units to dynamically monitor the operations and status of the network and provide advanced situational awareness and stability assessment. The overviews of synchrophasors and stability analyses in this report are intended to present the potential future applications of synchrophasors for power system operations under high penetrations of wind and other renewable energy sources.

  16. Thermal Strategies for High Efficiency Thermoelectric Power Generation...

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

    Strategies for High Efficiency Thermoelectric Power Generation Thermal Strategies for High Efficiency Thermoelectric Power Generation Developing integrated TE system configurations...

  17. Power politics : renewable energy policy change in US states

    E-Print Network [OSTI]

    Stokes, Leah C

    2015-01-01

    Addressing climate change requires societies to transition towards renewable energy resources. In the United States, most states have passed renewables portfolio standards (RPS), creating goals for electricity's share of ...

  18. EC417: Electric Energy Systems: Adapting to Renewable Resources Description: This course will present a detailed perspective of electric power systems

    E-Print Network [OSTI]

    calculations 6. Analysis and Design of Transformers 7. Introduction to Power Electronics and AC/DC and DC and "blackouts" (especially those related to the introduction of renewables (Photovoltaics, wind, etc.) 10. Power will present a detailed perspective of electric power systems from generation, transmission, and storage

  19. RF Power Generation in LHC

    E-Print Network [OSTI]

    Brunner, O C; Valuch, D

    2003-01-01

    The counter-rotating proton beams in the Large Hadron Collider (LHC) will be captured and then accelerated to their final energies of 2 x 7 TeV by two identical 400 MHz RF systems. The RF power source required for each beam comprises eight 300 kW klystrons. The output power of each klystron is fed via a circulator and a waveguide line to the input coupler of a single-cell super-conducting (SC) cavity. Four klystrons are powered by a 100 kV, 40A AC/DC power converter, previously used for the operation of the LEP klystrons. A five-gap thyratron crowbar protects the four klystrons in each of these units. The technical specification and measured performance of the various high-power elements are discussed. These include the 400MHz/300kW klystrons with emphasis on their group delay and the three-port circulators, which have to cope with peak reflected power levels up to twice the simultaneously applied incident power of 300 kW. In addition, a novel ferrite loaded waveguide absorber, used as termination for port No...

  20. Renewable Energy Action Team-Generation Tracking For Renewable Projects Revised 6/17/13

    E-Print Network [OSTI]

    Solar PV 15 Antelope 1 Los Angeles Recurrent Energy 20 Solar PV 16 Antelope Solar Los Angeles Greenworks Barren Ridge Solar Kern EDF Renewable Energy 100 Solar PV 26 Beacon Solar Energy Project Kern Beacon Solar, LLC 250 Solar PV 27 Bear Creek Solar Project San Joaquin Ecos Energy , LLC 1.5 Solar PV 28

  1. Radio-frequency power generation

    E-Print Network [OSTI]

    Carter, Richard G

    2013-01-01

    This paper reviews the main types of radio-frequency power amplifiers which are, or may be, used for high-power hadron accelerators. It covers tetrodes, inductive output tubes, klystrons and magnetrons with power outputs greater than 10 kW continuous wave or 100 kW pulsed at frequencies from 50 MHz to 30 GHz. Factors affecting the satisfactory operation of amplifiers include cooling, matching and protection circuits are discussed. The paper concludes with a summary of the state of the art for the different technologies.

  2. Electric Power Generation Systems | netl.doe.gov

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

    Electric Power Generation Systems Coal gasification-based power plants Coal combustion-based power plants Natural gas-fueled power plants Turbines Fuel cells Existing power plants...

  3. The generative powers of demolition

    E-Print Network [OSTI]

    Muskopf, Christopher Jon Dalton, 1975-

    2005-01-01

    When examining the factory within the urban fabric, especially those cases that are abandoned and considered obsolete, it may be possible to see the first generative act as one of un-building. Considering demolition as an ...

  4. Impact of unit commitment constraints on generation expansion planning with renewables

    E-Print Network [OSTI]

    Palmintier, Bryan Stephen

    Growing use of renewables pushes thermal generators against operating constraints - e.g. ramping, minimum output, and operating reserves - that are traditionally ignored in expansion planning models. We show how including ...

  5. Quenching China's Thirst for Renewable Power: Water Implications of China's Renewable Development

    E-Print Network [OSTI]

    Zheng, Nina

    2014-01-01

    lifecycle analyses of water and energy inputs to each typein recognizing the water-energy nexus, or in this case, theavailability between water and renewable energy. Both wind

  6. Quenching China's Thirst for Renewable Power: Water Implications of China's Renewable Development

    E-Print Network [OSTI]

    Zheng, Nina

    2014-01-01

    forthcoming). “China’s Alternative Energy Development. ”Sector Renewable and alternative energy development hasbarriers to China’s alternative energy development, the

  7. Power Flow Controller for Renewables: Transformer-less Unified Power Flow Controller for Wind and Solar Power Transmission

    SciTech Connect (OSTI)

    2012-02-08

    GENI Project: MSU is developing a power flow controller to improve the routing of electricity from renewable sources through existing power lines. The fast, innovative, and lightweight circuitry that MSU is incorporating into its controller will eliminate the need for a separate heavy and expensive transformer, as well as the construction of new transmission lines. MSU’s controller is better suited to control power flows from distributed and intermittent wind and solar power systems than traditional transformer-based controllers are, so it will help to integrate more renewable energy into the grid. MSU‘s power flow controller can be installed anywhere in the existing grid to optimize energy transmission and help reduce transmission congestion.

  8. A Stochastic Power Network Calculus for Integrating Renewable Energy Sources into the

    E-Print Network [OSTI]

    Ciucu, Florin

    . Low, Fellow, IEEE Abstract--Renewable energy such as solar and wind generation will constitute photovoltaic (PV) panels and wind turbines into the grid by also accounting for energy storage. To deal and sustainable energy sources, such as solar and wind. The next-generation grid will feature renewable energy

  9. Distributed Opportunistic Scheduling for Wireless Networks Powered by Renewable Energy Sources

    E-Print Network [OSTI]

    Zhang, Junshan

    Distributed Opportunistic Scheduling for Wireless Networks Powered by Renewable Energy Sources Hang with mul- tiple transmitter-receiver pairs, in which all transmitters are ca- pable of harvesting renewable Conventional wireless communication devices are usually powered by batteries that can provide stable energy

  10. Smoothing effect for spatially distributed renewable resources and its impact on power grid robustness

    E-Print Network [OSTI]

    Nagata, Motoki; Fujiwara, Naoya; Tanaka, Gouhei; Suzuki, Hideyuki; Aihara, Kazuyuki

    2015-01-01

    In this paper, we show that spatial correlation of renewable energy outputs greatly influences the robustness of power grids. First, we propose a new index for the spatial correlation among renewable energy outputs. We find that the spatial correlation of renewable energy outputs in a short time-scale is as weak as that caused by independent random variables and that in a long time-scale is as strong as that under perfect synchronization. Then, by employing the topology of the power grid in eastern Japan, we analyze the robustness of the power grid with spatial correlation of renewable energy outputs. The analysis is performed by using a realistic differential-algebraic equations model and the result shows that the spatial correlation of the energy resources strongly degrades the robustness of the power grid. Our result suggests that the spatial correlation of the renewable energy outputs should be taken into account when estimating the stability of power grids.

  11. Accounting for fuel price risk when comparing renewable togas-fired generation: the role of forward natural gas prices

    SciTech Connect (OSTI)

    Bolinger, Mark; Wiser, Ryan; Golove, William

    2004-07-17

    Unlike natural gas-fired generation, renewable generation (e.g., from wind, solar, and geothermal power) is largely immune to fuel price risk. If ratepayers are rational and value long-term price stability, then--contrary to common practice--any comparison of the levelized cost of renewable to gas-fired generation should be based on a hedged gas price input, rather than an uncertain gas price forecast. This paper compares natural gas prices that can be locked in through futures, swaps, and physical supply contracts to contemporaneous long-term forecasts of spot gas prices. We find that from 2000-2003, forward gas prices for terms of 2-10 years have been considerably higher than most contemporaneous long-term gas price forecasts. This difference is striking, and implies that comparisons between renewable and gas-fired generation based on these forecasts over this period have arguably yielded results that are biased in favor of gas-fired generation.

  12. Method and apparatus for automated, modular, biomass power generation

    DOE Patents [OSTI]

    Diebold, James P; Lilley, Arthur; Browne, III, Kingsbury; Walt, Robb Ray; Duncan, Dustin; Walker, Michael; Steele, John; Fields, Michael; Smith, Trevor

    2013-11-05

    Method and apparatus for generating a low tar, renewable fuel gas from biomass and using it in other energy conversion devices, many of which were designed for use with gaseous and liquid fossil fuels. An automated, downdraft gasifier incorporates extensive air injection into the char bed to maintain the conditions that promote the destruction of residual tars. The resulting fuel gas and entrained char and ash are cooled in a special heat exchanger, and then continuously cleaned in a filter prior to usage in standalone as well as networked power systems.

  13. Method and apparatus for automated, modular, biomass power generation

    DOE Patents [OSTI]

    Diebold, James P. (Lakewood, CO); Lilley, Arthur (Finleyville, PA); Browne, Kingsbury III (Golden, CO); Walt, Robb Ray (Aurora, CO); Duncan, Dustin (Littleton, CO); Walker, Michael (Longmont, CO); Steele, John (Aurora, CO); Fields, Michael (Arvada, CO); Smith, Trevor (Lakewood, CO)

    2011-03-22

    Method and apparatus for generating a low tar, renewable fuel gas from biomass and using it in other energy conversion devices, many of which were designed for use with gaseous and liquid fossil fuels. An automated, downdraft gasifier incorporates extensive air injection into the char bed to maintain the conditions that promote the destruction of residual tars. The resulting fuel gas and entrained char and ash are cooled in a special heat exchanger, and then continuously cleaned in a filter prior to usage in standalone as well as networked power systems.

  14. Solar thermoelectrics for small scale power generation

    E-Print Network [OSTI]

    Amatya, Reja

    2012-01-01

    In the past two decades, there has been a surge in the research of new thermoelectric (TE) materials, driven party by the need for clean and sustainable power generation technology. Utilizing the Seebeck effect, the ...

  15. Electric Power Generation and Transmission (Iowa)

    Broader source: Energy.gov [DOE]

    Electric power generating facilities with a combined capacity greater than 25 MW, as well as associated transmission lines, may not be constructed or begin operation prior to the issuance of a...

  16. Waste Heat Recovery Power Generation with WOWGen 

    E-Print Network [OSTI]

    Romero, M.

    2009-01-01

    WOW operates in the energy efficiency field- one of the fastest growing energy sectors in the world today. The two key products - WOWGen® and WOWClean® provide more energy at cheaper cost and lower emissions. •WOWGen® - Power Generation from...

  17. Hybrid solar-fossil fuel power generation

    E-Print Network [OSTI]

    Sheu, Elysia J. (Elysia Ja-Zeng)

    2012-01-01

    In this thesis, a literature review of hybrid solar-fossil fuel power generation is first given with an emphasis on system integration and evaluation. Hybrid systems are defined as those which use solar energy and fuel ...

  18. Renewable Energy for Electricity Generation in Latin America: Market,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-bRenewable Energy RFPsLtd RES Group Jump|Technologies,

  19. Wind Power (pbl/generation)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA?ResourceMeasurement Buoy AdvancesWind

  20. Power generation method including membrane separation

    DOE Patents [OSTI]

    Lokhandwala, Kaaeid A. (Union City, CA)

    2000-01-01

    A method for generating electric power, such as at, or close to, natural gas fields. The method includes conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas by means of a membrane separation step. This step creates a leaner, sweeter, drier gas, which is then used as combustion fuel to run a turbine, which is in turn used for power generation.

  1. Apparatus and method for thermal power generation

    DOE Patents [OSTI]

    Cohen, Paul (Pittsburgh, PA); Redding, Arnold H. (Export, PA)

    1978-01-01

    An improved thermal power plant and method of power generation which minimizes thermal stress and chemical impurity buildup in the vaporizing component, particularly beneficial under loss of normal feed fluid and startup conditions. The invention is particularly applicable to a liquid metal fast breeder reactor plant.

  2. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. This presentation was presented in a Wind Powering America webinar on August 15, 2012 and is now available through the Wind Powering America website.

  3. Exact and Efficient Algorithm to Discover Extreme Stochastic Events in Wind Generation over Transmission Power Grids

    E-Print Network [OSTI]

    Chertkov, Michael; Pan, Feng; Baldick, Ross

    2011-01-01

    In this manuscript we continue the thread of [M. Chertkov, F. Pan, M. Stepanov, Predicting Failures in Power Grids: The Case of Static Overloads, IEEE Smart Grid 2011] and suggest a new algorithm discovering most probable extreme stochastic events in static power grids associated with intermittent generation of wind turbines. The algorithm becomes EXACT and EFFICIENT (polynomial) in the case of the proportional (or other low parametric) control of standard generation, and log-concave probability distribution of the renewable generation, assumed known from the wind forecast. We illustrate the algorithm's ability to discover problematic extreme events on the example of the IEEE RTS-96 model of transmission with additions of 10%, 20% and 30% of renewable generation. We observe that the probability of failure may grow but it may also decrease with increase in renewable penetration, if the latter is sufficiently diversified and distributed.

  4. Supplementary Information Potential for Electricity Generation from Renewable Resources and Levelized Cost of Electricity (LCOE)

    E-Print Network [OSTI]

    Suo, Zhigang

    the potential to meet the worldwide demand of electricity and they contribute to the total generation of providing enough energy to meet the world demand of electricity, the current amount of electricitySupplementary Information Potential for Electricity Generation from Renewable Resources

  5. Optimal utilisation of renewable electricity generation Location: School of Mathematics, University of Leeds, UK

    E-Print Network [OSTI]

    Banaji,. Murad

    . The increase of random fluctuations in the generation of electricity when more wind and solar installations, wind and solar generation fluctuates depending on meteorological conditions. This new source to limited capacity, hydro-pump plants are currently employed. With the growing penetration of renewable

  6. The Political Economy of Wind Power in China

    E-Print Network [OSTI]

    Swanson, Ryan Landon

    2011-01-01

    biores/108435/. ?China‘s power generation capacity leapsfor Renewable Energy Power Generation Prices and Expenses? [htm. ?Analysis of UK Wind Power Generation: November 2008 to

  7. ReEDS Modeling of the President's 2020 U.S. Renewable Electricity Generation Goal (Presentation)

    SciTech Connect (OSTI)

    Zinaman, O.; Mai, T.; Lantz, E.; Gelman, R.; Porro, G.

    2014-05-01

    President Obama announced in 2012 an Administration Goal for the United States to double aggregate renewable electricity generation from wind, solar, and geothermal sources by 2020. This analysis, using the Regional Energy Deployment System (ReEDS) model, explores a full range of future renewable deployment scenarios out to 2020 to assess progress and outlook toward this goal. Under all modeled conditions, consisting of 21 scenarios, the Administration Goal is met before 2020, and as early as 2015.

  8. Renewable Energy and Inter-Island Power Transmission (Presentation)

    SciTech Connect (OSTI)

    Gevorgian, V.

    2011-05-01

    This presentation summarizes recent findings pertaining to inter-island connection of renewable and other energy sources, in particular, as these findings relate cable options, routing, specifications, and pros and cons.

  9. California's Renewable Portfolio Standard Northwest Power and Conservation Council

    E-Print Network [OSTI]

    Contracts 30,000 40,000 GWh Solar Thermal 20,000 G Wind 0 10,000 Biopower Geotherma l Small Hydro 0 2003 target for 33% of energy to be from eligible renewable energy resources Large hydro and rooftop solar for mid-size and small projects ReMAT, successor to Feed-In Tariff (0-3 MW) Renewable Auction Mechanism

  10. High Performance, Low Cost Hydrogen Generation from Renewable Energy

    SciTech Connect (OSTI)

    Ayers, Katherine; Dalton, Luke; Roemer, Andy; Carter, Blake; Niedzwiecki, Mike; Manco, Judith; Anderson, Everett; Capuano, Chris; Wang, Chao-Yang; Zhao, Wei

    2014-02-05

    Renewable hydrogen from proton exchange membrane (PEM) electrolysis is gaining strong interest in Europe, especially in Germany where wind penetration is already at critical levels for grid stability. For this application as well as biogas conversion and vehicle fueling, megawatt (MW) scale electrolysis is required. Proton has established a technology roadmap to achieve the necessary cost reductions and manufacturing scale up to maintain U.S. competitiveness in these markets. This project represents a highly successful example of the potential for cost reduction in PEM electrolysis, and provides the initial stack design and manufacturing development for Proton’s MW scale product launch. The majority of the program focused on the bipolar assembly, from electrochemical modeling to subscale stack development through prototyping and manufacturing qualification for a large active area cell platform. Feasibility for an advanced membrane electrode assembly (MEA) with 50% reduction in catalyst loading was also demonstrated. Based on the progress in this program and other parallel efforts, H2A analysis shows the status of PEM electrolysis technology dropping below $3.50/kg production costs, exceeding the 2015 target.

  11. Parasol and GreenSwitch: Managing Datacenters Powered by Renewable Energy

    E-Print Network [OSTI]

    Parasol and GreenSwitch: Managing Datacenters Powered by Renewable Energy ´I~nigo Goiri, William the renewable energy supply. For highest benefits, green datacenter operators must intelligently manage with Parasol, GreenSwitch, and MapReduce workloads demonstrate that intelligent workload and energy source

  12. Barriers to the adoption of renewable and energy-efficient technologies in the Vietnamese power sector

    E-Print Network [OSTI]

    Boyer, Edmond

    Barriers to the adoption of renewable and energy-efficient technologies in the Vietnamese power; renewables; energy efficient technologies. *Corresponding author: nhan@centre-cired.fr. Tel: +33 01 43 94 73 Développement, CNRS, France. b Institute of Energy, Vietnam. c The Royal Institute of Technology, Sweden d Asian

  13. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    Renewable Energy Certificates and Air Emissions Benefits:risk mitigation benefits of renewable energy are achievedenvironmental benefits from renewable energy in general

  14. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    between renewable energy and environmental policy, we look3) state policies on whether renewable energy or RECs sold3. State policies on whether renewable energy or RECs sold

  15. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    Holt. 2004. “Design Guide for Renewable Energy Certificate2005. “Emerging Markets for Renewable Energy Certificates:Golden, CO: National Renewable Energy Laboratory. http://

  16. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    renewable energy systems…will reduce environmental costs infor renewable energy and RECs and determining their cost andthe cost of providing total renewable energy to its retail

  17. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    Design Guide for Renewable Energy Certificate Tracking2005. “Emerging Markets for Renewable Energy Certificates:Golden, CO: National Renewable Energy Laboratory. http://

  18. Electric Power Generation from Coproduced Fluids from Oil and...

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

    Electric Power Generation from Coproduced Fluids from Oil and Gas Wells Electric Power Generation from Coproduced Fluids from Oil and Gas Wells The primary objective of this...

  19. Chena Hot Springs Resort - Electric Power Generation Using Geothermal...

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

    Hot Springs Resort - Electric Power Generation Using Geothermal Fluid Coproduced from Oil andor Gas Wells Chena Hot Springs Resort - Electric Power Generation Using Geothermal...

  20. Yunnan Zhongda Yanjin Power Generation Co Ltd | Open Energy Informatio...

    Open Energy Info (EERE)

    Zhongda Yanjin Power Generation Co Ltd Jump to: navigation, search Name: Yunnan Zhongda Yanjin Power Generation Co. Ltd. Place: Yunnan Province, China Sector: Hydro Product:...

  1. Proton Exchange Membrane Fuel Cells for Electrical Power Generation...

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

    Proton Exchange Membrane Fuel Cells for Electrical Power Generation On-Board Commercial Airplanes Proton Exchange Membrane Fuel Cells for Electrical Power Generation On-Board...

  2. Purchase and Installation of a Geothermal Power Plant to Generate...

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

    Purchase and Installation of a Geothermal Power Plant to Generate Electricity Using Geothermal Water Resources Purchase and Installation of a Geothermal Power Plant to Generate...

  3. Overview of Options to Integrate Stationary Power Generation...

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

    Options to Integrate Stationary Power Generation from Fuel Cells with Hydrogen Demand for the Transportation Sector Overview of Options to Integrate Stationary Power Generation...

  4. Overview of Progress in Thermoelectric Power Generation Technologies...

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

    Progress in Thermoelectric Power Generation Technologies in Japan Overview of Progress in Thermoelectric Power Generation Technologies in Japan Presents progress in government- and...

  5. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    state renewable generation? ” Energy Policy. 38: 1140-1149.Sweden 2003–2008. ” Energy Policy. 38(3): 1255-1271. Butler,US energy markets. ” Energy Policy. 35: 809-814. Kildegaard.

  6. Sample Documents for Federal On-Site Renewable Power Purchase Agreements

    Broader source: Energy.gov [DOE]

    To help streamline the on-site renewable power purchase agreement (PPA) process, the Federal Energy Management Program (FEMP) works with federal agencies and partners to assemble sample documents from PPA projects.

  7. Potential of wind-powered renewable energy membrane systems for Ghana 

    E-Print Network [OSTI]

    Park, G.L.; Schäfer, Andrea; Richard, B.S.

    2009-01-01

    Areas of the world that lack fresh water often have an ample supply of wind or solar energy, making renewable energy an attractive option as a power source for desalination systems. Particularly, wind energy is attractive ...

  8. Potential Role of Concentrating Solar Power in Enabling High Renewables Scenarios in the United States

    SciTech Connect (OSTI)

    Denholm, P.; Hand, M.; Mai, T.; Margolis, R.; Brinkman, G.; Drury, E.; Mowers, M.; Turchi, C.

    2012-10-01

    This work describes the analysis of concentrating solar power (CSP) in two studies -- The SunShot Vision Study and the Renewable Electricity Futures Study -- and the potential role of CSP in a future energy mix.

  9. Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning

    SciTech Connect (OSTI)

    Milligan, M.; Ela, E.; Hein, J.; Schneider, T.; Brinkman, G.; Denholm, P.

    2012-06-01

    The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

  10. Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems. Operations and Transmission Planning

    SciTech Connect (OSTI)

    Milligan, Michael; Ela, Erik; Hein, Jeff; Schneider, Thomas; Brinkman, Gregory; Denholm, Paul

    2012-06-15

    The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%–90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT). Learn more at the RE Futures website. http://www.nrel.gov/analysis/re_futures/

  11. Draft Fourth Northwest Conservation and Electric Power Plan, Appendix K RENEWABLE RESOURCE CONFIRMATION AGENDA

    E-Print Network [OSTI]

    , or additional projects undertaken to support demand for "green" power or to achieve research and developmentK-1 Draft Fourth Northwest Conservation and Electric Power Plan, Appendix K APPENDIX K RENEWABLE in Chapter 1 of Volume II of the 1991 Power Plan. In general, the Council has avoided advocating new policies

  12. Development and commercialization of a biomass gasification/power generation system

    SciTech Connect (OSTI)

    Paisley, M.A.; Farris, G.

    1995-11-01

    The US Department of Energy (DOE) has been a leader in the promotion and development of alternative fuel supplies based on renewable energy crops. One promising power generation technology is biomass gasification coupled with either a gas turbine in a combined cycle system or a fuel cell. The gasification of biomass can efficiently and economically produce a renewable source of a clean gaseous fuel suitable for use in these high efficiency power systems or as a substitute fuel in other combustion devices such as boilers, kilns, or other natural gas fired equipment. This paper discusses the development and commercialization of the Battelle high-throughput gasification process for gas turbine based power generation systems. Projected process economics for a gas turbine combined cycle plant are presented along with a description of integrated system operation coupling a 200kW gas turbine power generation system to a 10 ton per day gasifier, and current commercialization activities.

  13. Renewables

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProtonAbout UsRegionalScientificRenewables Sign In About |

  14. Nevada Application For Renewable Energy System Generators | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI Ventures Ltd JumpNesjavellir Geothermal Power1987) |Information For

  15. PUCT - Procedure for Certifying Renewable Energy Credit Generators | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio Program | OpenWisconsin:NewOverPPS Enviro Power PvtPTIP Ltd

  16. Western Renewable Energy Generation Information System ACCOUNT HOLDER REGISTRATION AGREEMENT

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubic Feet) UndergroundWestern Hemisphere

  17. Microelectromechanical power generator and vibration sensor

    DOE Patents [OSTI]

    Roesler, Alexander W. (Tijeras, NM); Christenson, Todd R. (Albuquerque, NM)

    2006-11-28

    A microelectromechanical (MEM) apparatus is disclosed which can be used to generate electrical power in response to an external source of vibrations, or to sense the vibrations and generate an electrical output voltage in response thereto. The MEM apparatus utilizes a meandering electrical pickup located near a shuttle which holds a plurality of permanent magnets. Upon movement of the shuttle in response to vibrations coupled thereto, the permanent magnets move in a direction substantially parallel to the meandering electrical pickup, and this generates a voltage across the meandering electrical pickup. The MEM apparatus can be fabricated by LIGA or micromachining.

  18. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Renewable Electricity Generation and Storage Technologies for Sustainable Energy, LLC. #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable;Suggested Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory

  19. Energy Secretary Chu Applauds World's First All-Renewable Power...

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

    power to the existing geothermal plant and solar photovoltaic field, for a total installed capacity of 60 MW. Source: Enel Green Power North America Optimizing Geothermal...

  20. Plasma plume MHD power generator and method

    DOE Patents [OSTI]

    Hammer, J.H.

    1993-08-10

    A method is described of generating power at a situs exposed to the solar wind which comprises creating at separate sources at the situs discrete plasma plumes extending in opposed directions, providing electrical communication between the plumes at their source and interposing a desired electrical load in the said electrical communication between the plumes.

  1. Role of Energy Storage with Renewable Electricity Generation (Report Summary) (Presentation)

    SciTech Connect (OSTI)

    Denholm, P.; Ela, E.; Kirby, B.; Milligan, M.

    2010-03-01

    Renewable energy sources, such as wind and solar, have vast potential to reduce dependence on fossil fuels and greenhouse gas emissions in the electric sector. Climate change concerns, state initiatives including renewable portfolio standards, and consumer efforts are resulting in increased deployments of both technologies. Both solar photovoltaics (PV) and wind energy have variable and uncertain (sometimes referred to as "intermittent") output, which are unlike the dispatchable sources used for the majority of electricity generation in the United States. The variability of these sources has led to concerns regarding the reliability of an electric grid that derives a large fraction of its energy from these sources as well as the cost of reliably integrating large amounts of variable generation into the electric grid. In this report, we explore the role of energy storage in the electricity grid, focusing on the effects of large-scale deployment of variable renewable sources (primarily wind and solar energy).

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

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

    Residential and Utility Solar Power Generating Systems SunPower,Low Cost Thin Film Building-Integrated PV Systems Low Cost High Concentration PV Systems for Utility Power...

  3. Using Backup Generators: Alternative Backup Power Options | Department...

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

    to electric generators powered by fuel, homeowners and business owners may consider alternative backup power options. Battery-stored backup power-Allows you to continue...

  4. Recent advances in RF power generation

    SciTech Connect (OSTI)

    Tallerico, P.J.

    1990-01-01

    This paper is a review of the progress and methods used in RF generation for particle accelerators. The frequencies of interest are from a few megahertz to 100 GHz, and the powers are for super linear collider applications, but in this case the pulses are short, generally below 1 {mu}s. The very high-power, short-pulse generators are only lightly reviewed here, and for more details the reader should follow the specialized references. Different RF generators excel over various parts of the frequency spectrum. Below 100 MHz solid-state devices and gridded tubes prevail, while the region between 400 MHz and 3 GHz, the cyclotron-resonant devices predominate, and above 250 GHz, Free-Electron Lasers and ubitrons are the most powerful generators. The emphasis for this review is on microwave generation at frequencies below 20 GHz, so the cyclotron-resonant devices are only partially reviewed, while the progress on free-electron laser and ubitrons is not reviewed in this paper. 39 refs., 4 figs.

  5. Photovoltaic Power Generation in the Stellar Environments

    E-Print Network [OSTI]

    T. E. Girish; S. Aranya

    2010-12-03

    In this paper we have studied the problem of photovoltaic power generation near selected stars in the solar neighborhood. The nature of the optical radiation from a star will depend on its luminosity,HR classification and spectral characteristics. The solar celloperation in the habitable zones of the stars is similar to AM1.0 operation near earth.Thecurrent space solar cell technology can be adopted for power generation near G,K and Mtype stars. Silicon solar cells with good near IR response are particularly suitable in theenvironments of M type stars which are most abundant in the universe. . Photovoltaicpower generation near binary stars like Sirius and Alpha Centauri is also discussed.

  6. The significance of energy storage for renewable energy generation and the role of instrumentation and measurement.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 The significance of energy storage for renewable energy generation and the role and Alternative Energies Commission INES: National Institute For Solar Energy ENERGY STORAGE: FROM PRESENT TO EMERGING TECHNOLOGIES Energy storage is not a new concept but is currently getting increasing importance

  7. Renewable Energy Requirements for Future Building Codes: Energy Generation and Economic Analysis

    SciTech Connect (OSTI)

    Russo, Bryan J.; Weimar, Mark R.; Dillon, Heather E.

    2011-09-30

    As the model energy codes are improved to reach efficiency levels 50 percent greater than current codes, installation of on-site renewable energy generation is likely to become a code requirement. This requirement will be needed because traditional mechanisms for code improvement, including the building envelope, mechanical systems, and lighting, have been maximized at the most cost-effective limit.

  8. Producing methane from electrical current generated using renewable energy sources using

    E-Print Network [OSTI]

    Producing methane from electrical current generated using renewable energy sources using electrical current 5 Liu et al. (2004) Environ. Sci. Technol. #12;6 Getting energy from food (biomass) C6H12O methanogenic microorganisms Bruce E. Logan Penn State University Engineering Energy & Environmental Institute

  9. Evaluating Policies to Increase the Generation of Electricity from Renewable Energy

    E-Print Network [OSTI]

    Schmalensee, Richard

    Focusing on the U.S. and the E.U., this essay seeks to advance four main propositions. First, the incidence of the short-run costs of programs to subsidize the generation of electricity from renewable sources varies with ...

  10. Apples with apples: accounting for fuel price risk in comparisons of gas-fired and renewable generation

    SciTech Connect (OSTI)

    Bolinger, Mark; Wiser, Ryan

    2003-12-18

    For better or worse, natural gas has become the fuel of choice for new power plants being built across the United States. According to the US Energy Information Administration (EIA), natural gas combined-cycle and combustion turbine power plants accounted for 96% of the total generating capacity added in the US between 1999 and 2002--138 GW out of a total of 144 GW. Looking ahead, the EIA expects that gas-fired technology will account for 61% of the 355 GW new generating capacity projected to come on-line in the US up to 2025, increasing the nationwide market share of gas-fired generation from 18% in 2002 to 22% in 2025. While the data are specific to the US, natural gas-fired generation is making similar advances in other countries as well. Regardless of the explanation for (or interpretation of) the empirical findings, however, the basic implications remain the same: one should not blindly rely on gas price forecasts when comparing fixed-price renewable with variable-price gas-fired generation contracts. If there is a cost to hedging, gas price forecasts do not capture and account for it. Alternatively, if the forecasts are at risk of being biased or out of tune with the market, then one certainly would not want to use them as the basis for resource comparisons or investment decisions if a more certain source of data (forwards) existed. Accordingly, assuming that long-term price stability is valued, the most appropriate way to compare the levelized cost of these resources in both cases would be to use forward natural gas price data--i.e. prices that can be locked in to create price certainty--as opposed to uncertain natural gas price forecasts. This article suggests that had utilities and analysts in the US done so over the sample period from November 2000 to November 2003, they would have found gas-fired generation to be at least 0.3-0.6 cents/kWh more expensive (on a levelized cost basis) than otherwise thought. With some renewable resources, in particular wind power, now largely competitive with gas-fired generation in the US (including the impact of the federal production tax credit and current high gas prices), a margin of 0.3-0.6 cents/kWh may in some cases be enough to sway resource decisions in favor of renewables.

  11. Renewing America's Nuclear Power Partnership for Energy Security and

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuildingBudgetFinancialReliabilityEnergyRenewable JetEconomic

  12. Coal Gasification for Power Generation, 3. edition

    SciTech Connect (OSTI)

    NONE

    2007-11-15

    The report provides a concise look at the challenges faced by coal-fired generation, the ability of coal gasification to address these challenges, and the current state of IGCC power generation. Topics covered include: an overview of Coal Generation including its history, the current market environment, and the status of coal gasification; a description of gasification technology including processes and systems; an analysis of the key business factors that are driving increased interest in coal gasification; an analysis of the barriers that are hindering the implementation of coal gasification projects; a discussion of Integrated Gasification Combined Cycle (IGCC) technology; an evaluation of IGCC versus other generation technologies; a discussion of IGCC project development options; a discussion of the key government initiatives supporting IGCC development; profiles of the key gasification technology companies participating in the IGCC market; and, a detailed description of existing and planned coal IGCC projects.

  13. Isotope powered Stirling generator for terrestrial applications

    SciTech Connect (OSTI)

    Tingey, G.L.; Sorensen, G.C.; Ross, B.A.

    1995-01-01

    An electric power supply, small enough to be man-portable, is being developed for remote, terrestrial applications. This system is designed for an operating lifetime of five years without maintenance or refueling. A small Radioisotope Stirling Generator (RSG) has been developed. The energy source of the generator is a 60 watt plutonium-238 fuel clad used in the General Purpose Heat Sources (GPHS) developed for space applications. A free piston Stirling Engine drives a linear alternator to convert the heat to power. The system weighs about 7.5 kg and produces 11 watts AC power with a conversion efficiency of 18.5%. Two engine models have been designed, fabricated, and tested to date: (a) a developmental model instrumented to confirm and test parameters, and (b) an electrically heated model with an electrical heater equipped power input leads. Critical components have been tested for 10,000 to 20,000 hours. One complete generator has been operating for over 11,000 hours. Radioisotope heated prototypes are expected to be fabricated and tested in late 1995.

  14. ZERO EMISSION POWER GENERATION TECHNOLOGY DEVELOPMENT

    SciTech Connect (OSTI)

    Ronald Bischoff; Stephen Doyle

    2005-01-20

    Clean Energy Systems (CES) was previously funded by DOE's ''Vision 21'' program. This program provided a proof-of-concept demonstration that CES' novel gas generator (combustor) enabled production of electrical power from fossil fuels without pollution. CES has used current DOE funding for additional design study exercises which established the utility of the CES-cycle for retrofitting existing power plants for zero-emission operations and for incorporation in zero-emission, ''green field'' power plant concepts. DOE funding also helped define the suitability of existing steam turbine designs for use in the CES-cycle and explored the use of aero-derivative turbines for advanced power plant designs. This work is of interest to the California Energy Commission (CEC) and the Norwegian Ministry of Petroleum & Energy. California's air quality districts have significant non-attainment areas in which CES technology can help. CEC is currently funding a CES-cycle technology demonstration near Bakersfield, CA. The Norwegian government is supporting conceptual studies for a proposed 40 MW zero-emission power plant in Stavager, Norway which would use the CES-cycle. The latter project is called Zero-Emission Norwegian Gas (ZENG). In summary, current engineering studies: (1) supported engineering design of plant subsystems applicable for use with CES-cycle zero-emission power plants, and (2) documented the suitability and availability of steam turbines for use in CES-cycle power plants, with particular relevance to the Norwegian ZENG Project.

  15. Electrokinetic Power Generation from Liquid Water Microjets

    SciTech Connect (OSTI)

    Duffin, Andrew M.; Saykally, Richard J.

    2008-02-15

    Although electrokinetic effects are not new, only recently have they been investigated for possible use in energy conversion devices. We have recently reported the electrokinetic generation of molecular hydrogen from rapidly flowing liquid water microjets [Duffin et al. JPCC 2007, 111, 12031]. Here, we describe the use of liquid water microjets for direct conversion of electrokinetic energy to electrical power. Previous studies of electrokinetic power production have reported low efficiencies ({approx}3%), limited by back conduction of ions at the surface and in the bulk liquid. Liquid microjets eliminate energy dissipation due to back conduction and, measuring only at the jet target, yield conversion efficiencies exceeding 10%.

  16. BPA Power Generation (pbl/main)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections Audits Generation Hydro Power Wind Power Monthly GSP

  17. Power Generation Market Watch Cell Processing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgram Guidelines This document w w w.pv - te ch.org Power Generation

  18. Wyoming Wind Power Project (generation/wind)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos Alamos verifies largest single goldWind Power > Generation Hydro

  19. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a Power Systems Engineering Research Center webinar on September 4, 2012.

  20. Renewable Power Generation JV Company | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLCALLETEREFURecentCenterPrivate SectorNRG JumpJV

  1. Renewable Energy in India: Status and future Potential

    E-Print Network [OSTI]

    Banerjee, Rangan

    Thermal Solar Photovoltaic Tidal Wave Ocean Thermal #12;Power Generation Options Power Generation environmental impacts Unsustainable Need for transition to renewable energy systems, nuclear, efficiency #12 Side Management (Solar Water Heater, Passive Solar) #12;Renewables in Power Power generation 6500 PJ

  2. Heat Management in Thermoelectric Power Generators

    E-Print Network [OSTI]

    Zebarjadi, Mona

    2015-01-01

    Thermoelectric power generators are used to convert heat into electricity. Like any other heat engine, the performance of a thermoelectric generator increases as the temperature difference on the sides increases. It is generally assumed that as more heat is forced through the thermoelectric legs, their performance increases. Therefore, insulations are typically used to minimize the heat losses and to confine the heat transport through the thermoelectric legs. In this paper we show that to some extend it is beneficial to purposely open heat loss channels in order to establish a larger temperature gradient and therefore to increase the overall efficiency and achieve larger electric power output. We define a modified Biot number (Bi) as an indicator of requirements for sidewall insulation. We show that if Bi1, it lowers the conversion efficiency.

  3. Wind Power: A Clean and Renewable Supplement to the World's Energy Mix Michael Treadow

    E-Print Network [OSTI]

    Mauzerall, Denise

    - dards of living worldwide, the construction and operation of wind farms create income and jobs for homesWind Power: A Clean and Renewable Supplement to the World's Energy Mix Michael Treadow May 8, 2006 WWS 402d Junior Paper ­ Final Draft Abstract: Wind power harbors the potential to become a key

  4. Solar Power To Help Convert Carbon Dioxide Into Fuel : Renewable Energy News

    E-Print Network [OSTI]

    Lovley, Derek

    Solar Power To Help Convert Carbon Dioxide Into Fuel : Renewable Energy News TUESDAY 25 MAY, 2010 | | Solar Power To Help Convert Carbon Dioxide Into Fuel by Energy Matters Microbiologist Derek Lovley of energy, the solar panels, can also harvest energy 100 times more effectively than plants. Other

  5. Power and Frequency Control as it Relates to Wind-Powered Generation

    E-Print Network [OSTI]

    Lacommare, Kristina S H

    2011-01-01

    Control as it Relates to Wind- Powered Generation AppendixControl as it Relates to Wind-Powered Generation JohnControl as it Relates to Wind-Powered Generation LBNL-XXXXX

  6. Power Transfer Potential to the Southeast in Response to a Renewable Portfolio Standard: Interim Report 2

    SciTech Connect (OSTI)

    Hadley, Stanton W [ORNL; Key, Thomas S [Electric Power Research Institute (EPRI); Deb, Rajat [LCG Consulting

    2009-05-01

    Electricity consumption in the Southeastern US, not including Florida, is approximately 24% of the total US. The availability of renewable resources for electricity production is relatively small compared to the high consumption. Therefore meeting a national renewable portfolio standard (RPS) is particularly challenging in this region. Neighboring regions, particularly to the west, have significant wind resources and given sufficient long distant transmission these resources could serve energy markets in the SE. This report looks at renewable resource supply relative to demands and the potential for power transfer into the SE. It shows that development of wind resources will depend not only on available transmission capacity but also on electricity supply and demand factors.

  7. Opportunities for Synergy Between Natural Gas and Renewable Energy in the Electric Power and Transportation Sectors

    SciTech Connect (OSTI)

    Lee, A.; Zinaman, O.; Logan, J.

    2012-12-01

    Use of both natural gas and renewable energy has grown significantly in recent years. Both forms of energy have been touted as key elements of a transition to a cleaner and more secure energy future, but much of the current discourse considers each in isolation or concentrates on the competitive impacts of one on the other. This paper attempts, instead, to explore potential synergies of natural gas and renewable energy in the U.S. electric power and transportation sectors.

  8. Modeling Generator Power Plant Portfolios and Pollution Taxes in

    E-Print Network [OSTI]

    Nagurney, Anna

    Modeling Generator Power Plant Portfolios and Pollution Taxes in Electric Power Supply Chain-term solution (e.g.,are long-term solution (e.g., solar power and wind power (solar power and wind power Heavy user of fossil fuels:Heavy user of fossil fuels: Electric power industryElectric power industry

  9. Turner Hunt Ocean Renewable (TRL 4 System) - THOR's Power Method...

    Energy Savers [EERE]

    More Documents & Publications CX-004722: Categorical Exclusion Determination Vortex Hydro Energy (TRL 5 6 System) - Advanced Integration of Power Take-Off in VIVACE Ocean...

  10. Ocean Power: Science Projects in Renewable Energy and Energy...

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

    to provide 2 to 3 million megawatts of power from our world's coastlines. National Science Education Standards by the National Academy of Sciences Science Content Standards:...

  11. Georgia Power Compnay Three 30 MW Renewable Projects

    Energy Savers [EERE]

    Mississippi Power Company and the Mississippi PSC, the March 2013 rate order approving retail rate increases consistent with the terms of the settlement agreement, or the State of...

  12. Cummins Power Generation SECA Phase 1

    SciTech Connect (OSTI)

    Charles Vesely

    2007-08-17

    The following report documents the progress of the Cummins Power Generation (CPG) SECA Phase 1 SOFC development and final testing under the U.S. Department of Energy Solid State Energy Conversion Alliance (SECA) contract DE-FC26-01NT41244. This report overviews and summarizes CPG and partner research development leading to successful demonstration of the SECA Phase 1 objectives and significant progress towards SOFC commercialization. Significant Phase 1 Milestones: (1) Demonstrated: (a) Operation meeting Phase 1 requirements on commercial natural gas. (b) LPG and Natural Gas CPOX fuel reformers. (c) SOFC systems on dry CPOX reformate. (c) Steam reformed Natural Gas operation. (d) Successful start-up and shut-down of SOFC system without inert gas purge. (e) Utility of stack simulators as a tool for developing balance of plant systems. (2) Developed: (a) Low cost balance of plant concepts and compatible systems designs. (b) Identified low cost, high volume components for balance of plant systems. (c) Demonstrated high efficiency SOFC output power conditioning. (d) Demonstrated SOFC control strategies and tuning methods. The Phase 1 performance test was carried out at the Cummins Power Generation facility in Minneapolis, Minnesota starting on October 2, 2006. Performance testing was successfully completed on January 4, 2007 including the necessary steady-state, transient, efficiency, and peak power operation tests.

  13. Next Generation of Renewable Electricity Policy: How Rapid Change is Breaking Down Conventional Policy Categories

    SciTech Connect (OSTI)

    Couture, T. D.; Jacobs, D.; Rickerson, W.; Healey, V.

    2015-02-01

    A number of policies have been used historically in order to stimulate the growth of the renewable electricity sector. This paper examines four of these policy instruments: competitive tendering, sometimes called renewable electricity auctions, feed-in tariffs, net metering and net billing, and tradable renewable energy certificates. In recent years, however, a number of changes to both market circumstances and to policy priorities have resulted in numerous policy innovations, including the emergence of policy hybrids. With no common language for these evolving policy mechanisms, policymakers have generally continued to use the same traditional policy labels, occasionally generating confusion as many of these new policies no longer look, or act, like their traditional predecessors. In reviewing these changes, this paper makes two separate but related claims: first, policy labels themselves are breaking down and evolving. As a result, policy comparisons that rely on the conventional labels may no longer be appropriate, or advisable. Second, as policymakers continue to adapt, we are in effect witnessing the emergence of the next generation of renewable electricity policies, a change that could have significant impacts on investment, as well as on market growth in both developed and developing countries.

  14. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    s rules state: “Renewable Energy Trading Program Emissionsin a renewable energy trading program shall have exclusiverenewable energy and RECs in emissions trading markets. For

  15. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    market of potential significance to renewable energy ispotential application of tracking systems is to verify marketing claims for voluntary renewable energy

  16. Power Generation Using Different Cation, Anion, and Ultrafiltration

    E-Print Network [OSTI]

    Power Generation Using Different Cation, Anion, and Ultrafiltration Membranes in Microbial Fuel during power generation. An anion exchange membrane (AEM) produced the largest power density (up to 610 m reports (5, 6), oxygen based cathodes provide a more sustainable method of power generation (6

  17. Feasibility Study of Biopower in East Helena, Montana. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect (OSTI)

    Moriarty, K.

    2013-02-01

    The U.S. Environmental Protection Agency (EPA) developed the RE-Powering America's Land initiative to reuse contaminated sites for renewable energy generation when aligned with the community's vision for the site. The former American Smelting and Refining Company (Asarco) smelter in East Helena, Montana, was selected for a feasibility study under the initiative. Biomass was chosen as the renewable energy resource based on the wood products industry in the area. Biopower was selected as the technology based on Montana's renewable portfolio standard (RPS) requiring utilities to purchase renewable power.

  18. The role of hydroelectric generation in electric power systems with large scale wind generation

    E-Print Network [OSTI]

    Hagerty, John Michael

    2012-01-01

    An increasing awareness of the operational challenges created by intermittent generation of electricity from policy-mandated renewable resources, such as wind and solar, has led to increased scrutiny of the public policies ...

  19. Environmental Standard Review Plan for the review of license renewal applications for nuclear power plants

    SciTech Connect (OSTI)

    O'Brien, J.; Kim, T.J.; Reynolds, S.

    1991-08-01

    The Environmental Standard Review Plan for the Review of License Applications for Nuclear Power Plants (ESRP-LR) is to be used by the NRC staff when performing environmental reviews of applications for the renewal of power reactor licenses. The use of the ESRP-LR provides a framework for the staff to determine whether or not environmental issues important to license renewal have been identified and the impacts evaluated and provides acceptance standards to help the reviewers comply with the National Environmental Policy Act.

  20. Biofuels and Renewable Energy Page

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

    Bioenergy Conventional Renewable Energy Wind Power Hydro Power Power System INL Home Biofuels and Renewable Energy Renewable energy resources are expected to play major role in...

  1. Datang Jilin Resourceful New Energy Power Generation Co Ltd formerly...

    Open Energy Info (EERE)

    Datang Jilin Resourceful New Energy Power Generation Co Ltd formerly known as Roaring 40s and Datan Jump to: navigation, search Name: Datang Jilin Resourceful New Energy Power...

  2. Model-Predictive Cascade Mitigation in Electric Power Systems With Storage and Renewables-Part I: Theory and Implementation

    SciTech Connect (OSTI)

    Almassalkhi, MR; Hiskens, IA

    2015-01-01

    A novel model predictive control (MPC) scheme is developed for mitigating the effects of severe line-overload disturbances in electrical power systems. A piece-wise linear convex approximation of line losses is employed to model the effect of transmission line power flow on conductor temperatures. Control is achieved through a receding-horizon model predictive control (MPC) strategy which alleviates line temperature overloads and thereby prevents the propagation of outages. The MPC strategy adjusts line flows by rescheduling generation, energy storage and controllable load, while taking into account ramp-rate limits and network limitations. In Part II of this paper, the MPC strategy is illustrated through simulation of the IEEE RTS-96 network, augmented to incorporate energy storage and renewable generation.

  3. Suppressing the non-Gaussian statistics of Renewable Power from Wind and Solar

    E-Print Network [OSTI]

    Anvari, M; Tabar, M Reza Rahimi; Wächter, M; Milan, P; Heinemann, D; Peinke, Joachim; Lorenz, E

    2015-01-01

    The power from wind and solar exhibits a nonlinear flickering variability, which typically occurs at time scales of a few seconds. We show that high-frequency monitoring of such renewable powers enables us to detect a transition, controlled by the field size, where the output power qualitatively changes its behaviour from a flickering type to a diffusive stochastic behaviour. We find that the intermittency and strong non-Gaussian behavior in cumulative power of the total field, even for a country-wide installation still survives for both renewable sources. To overcome the short time intermittency, we introduce a time-delayed feedback method for power output of wind farm and solar field that can change further the underlying stochastic process and suppress their strong non- gaussian fluctuations.

  4. PowerIt Renewable Energy Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, BluePoulsen Hybrid, LLC JumpPowerAvenuePowerIt

  5. Enhanced Efficiency of Wind-Diesel Power Generation in Tribal...

    Office of Environmental Management (EM)

    Enhanced Efficiency of Wind-Diesel Power Generation in Tribal Villages Enhanced Efficiency of Wind-Diesel Power Generation in Tribal Villages June 17, 2014 - 3:50pm Addthis The...

  6. Power generation with laterally packaged piezoelectric fine wires

    E-Print Network [OSTI]

    Wang, Zhong L.

    Power generation with laterally packaged piezoelectric fine wires Rusen Yang1 , Yong Qin1 , Liming we report a flexible power generator that is based on cyclic stretching­releasing of a piezoelectric

  7. Green power grids: how energy from renewable sources affects network and markets

    E-Print Network [OSTI]

    Mureddu, Mario; Chessa, Alessandro; Scala, Antonio; Damiano, Alfonso

    2015-01-01

    The increasing attention to environmental issues is forcing the implementation of novel energy models based on renewable sources, fundamentally changing the configuration of energy management and introducing new criticalities that are only partly understood. In particular, renewable energies introduce fluctuations causing an increased request of conventional energy sources oriented to balance energy requests on short notices. In order to develop an effective usage of low-carbon sources, such fluctuations must be understood and tamed. In this paper we present a microscopic model for the description and the forecast of short time fluctuations related to renewable sources and to their effects on the electricity market. To account for the inter-dependencies among the energy market and the physical power dispatch network, we use a statistical mechanics approach to sample stochastic perturbations on the power system and an agent based approach for the prediction of the market players behavior. Our model is a data-d...

  8. Linkages from DOE's Wind Energy Program to Commercial Renewable Power

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties - WAPA PublicLED ADOPTIONtoLighting SystemLinacGeneration

  9. Distributed Generation Investment by a Microgrid Under Uncertainty

    E-Print Network [OSTI]

    Siddiqui, Afzal; Marnay, Chris

    2006-01-01

    Distributed Generation Power Projects , National Renewable EnergyDistributed Energy Program, under the Assistant Secretary of Energy Efficiency and Renewable Energy

  10. Increased Power Generation in a Continuous Flow MFC with

    E-Print Network [OSTI]

    Increased Power Generation in a Continuous Flow MFC with Advective Flow through the Porous Anode, The Pennsylvania State University, University Park, Pennsylvania 16802 The maximum power generated in a single without affecting power generation (16). Pt can be replaced by less expensive alternatives such as Co

  11. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    allows generation data from all solar energy systems to beanalysis of data compiled by the Solar Energy Industriesdata are available), 68% of the aggregate solar/DG set-aside compliance obligation was achieved through the purchase of qualifying renewable energy

  12. Live Webinar on EERE’s FY15 Budget for Renewable Power

    Broader source: Energy.gov [DOE]

    On April 1, 2014, the Office of Energy Efficiency & Renewable Energy’s (EERE) Wind and Water Power Technologies Office will present its FY15 budget. Deputy Assistant Secretary Steve Chalk will present the EERE overview and Program Director Jose Zayas will discuss details of the Program’s FY15 budget request.

  13. 64 Home Power #30 August / September 1992 ny renewable energy system that

    E-Print Network [OSTI]

    Johnson, Eric E.

    64 Home Power #30 · August / September 1992 ny renewable energy system that employs an inverter to produce 120-volt alternating current must have a grounding system for safety. The National Electrical Code Side If this type of inverter, with multiple ac receptacles, is connected to a distribution panel

  14. Asymptotically Optimal Power-Aware Routing for Multihop Wireless Networks with Renewable

    E-Print Network [OSTI]

    Srikant, Rayadurgam

    1 Asymptotically Optimal Power-Aware Routing for Multihop Wireless Networks with Renewable Energy the performance of multihop radio networks in the presence of energy constraints, and design routing algorithms to optimally utilize the available energy. The energy model allows vastly different energy sources

  15. BP Gas Power and Renewables | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex AAustriaBiofuels Brasil Jump to: navigation, searchGas Power

  16. Powered by Renewables formerly Nevada Wind | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, BluePoulsen Hybrid, LLCBiofuels LLC JumpPowerWind

  17. Design, Modeling and Testing of the Askaryan Radio Array South Pole Autonomous Renewable Power Stations

    E-Print Network [OSTI]

    Besson, D Z; Ratzlaff, K; Young, R

    2014-01-01

    We describe the design, construction and operation of the Askaryan Radio Array (ARA) Autonomous Renewable Power Stations, initially installed at the South Pole in December, 2010 with the goal of providing an independently operating 100 W power source capable of year-round operation in extreme environments. In addition to particle astrophysics applications at the South Pole, such a station can easily be, and has since been, extended to operation elsewhere, as described herein.

  18. ON THE LINEAR COMPLEXITY OF THE POWER GENERATOR

    E-Print Network [OSTI]

    Shparlinski, Igor

    ON THE LINEAR COMPLEXITY OF THE POWER GENERATOR Igor Shparlinski School of MPCE, Macquarie on the linear complexity of the power generator of pseudo­random numbers, which in some special cases is also known as the RSA generator and as the Blum--Blum--Shub generator. In some very important cases

  19. Integration of renewable energy sources: reliability-constrained power system planning and operations using computational intelligence 

    E-Print Network [OSTI]

    Wang, Lingfeng

    2009-05-15

    studied in the dissertation include reliability evaluation of power systems with time-dependent energy sources, multi-objective design of hybrid generation systems, risk and cost tradeoff in economic dispatch with wind power penetration, optimal placement...

  20. New power politics will determine generation's path

    SciTech Connect (OSTI)

    Maize, K.; Neville, A.; Peltier, R.

    2009-01-15

    The US power industry's story in 2009 will be all about change, to borrow a now-familiar theme. Though the new administration's policy specifics had not been revealed as this report was prepared, it appears that flat load growth in 2009 will give the new Obama administration a unique opportunity to formulate new energy policy without risking that the lights will go out. New coal projects are now facing increasing difficulties. It looks as though the electricity supply industry will continue to muddle through. It may see an advancement in infrastructure investment, significant new generation or new technology development. It also faces the possibility that policies necessary to achieving those goals will not materialize, for political and economic reasons. 4 figs.

  1. Power Transfer Potential to the Southeast in Response to a Renewable Portfolio Standard: Final Report

    SciTech Connect (OSTI)

    Key, Thomas S; Hadley, Stanton W; Deb, Rajat

    2010-02-01

    Electricity consumption in the Southeastern US, including Florida, is approximately 32% of the total US. The availability of renewable resources for electricity production is relatively small compared to the high consumption. Therefore meeting a national renewable portfolio standard (RPS) is particularly challenging in this region. Neighboring regions, particularly to the west, have significant wind resources and given sufficient transmission these resources could serve energy markets in the SE. This report looks at renewable resource supply relative to demands and the potential for power transfer into the SE. We found that significant wind energy transfers, at the level of 30-60 GW, are expected to be economic in case of federal RPC or CO2 policy. Development of wind resources will depend not only on the available transmission capacity and required balancing resources, but also on electricity supply and demand factors.

  2. Quantifiably secure power grid operation, management, and evolution : a study of uncertainties affecting the grid integration of renewables.

    SciTech Connect (OSTI)

    Gray, Genetha Anne; Watson, Jean-Paul; Silva Monroy, Cesar Augusto; Gramacy, Robert B.

    2013-09-01

    This report summarizes findings and results of the Quantifiably Secure Power Grid Operation, Management, and Evolution LDRD. The focus of the LDRD was to develop decisionsupport technologies to enable rational and quantifiable risk management for two key grid operational timescales: scheduling (day-ahead) and planning (month-to-year-ahead). Risk or resiliency metrics are foundational in this effort. The 2003 Northeast Blackout investigative report stressed the criticality of enforceable metrics for system resiliency - the grid's ability to satisfy demands subject to perturbation. However, we neither have well-defined risk metrics for addressing the pervasive uncertainties in a renewable energy era, nor decision-support tools for their enforcement, which severely impacts efforts to rationally improve grid security. For day-ahead unit commitment, decision-support tools must account for topological security constraints, loss-of-load (economic) costs, and supply and demand variability - especially given high renewables penetration. For long-term planning, transmission and generation expansion must ensure realized demand is satisfied for various projected technological, climate, and growth scenarios. The decision-support tools investigated in this project paid particular attention to tailoriented risk metrics for explicitly addressing high-consequence events. Historically, decisionsupport tools for the grid consider expected cost minimization, largely ignoring risk and instead penalizing loss-of-load through artificial parameters. The technical focus of this work was the development of scalable solvers for enforcing risk metrics. Advanced stochastic programming solvers were developed to address generation and transmission expansion and unit commitment, minimizing cost subject to pre-specified risk thresholds. Particular attention was paid to renewables where security critically depends on production and demand prediction accuracy. To address this concern, powerful filtering techniques for spatio-temporal measurement assimilation were used to develop short-term predictive stochastic models. To achieve uncertaintytolerant solutions, very large numbers of scenarios must be simultaneously considered. One focus of this work was investigating ways of reasonably reducing this number.

  3. Modeling Generator Power Plant Portfolios and Pollution Taxes Electric Power Supply Chain Networks

    E-Print Network [OSTI]

    Nagurney, Anna

    Modeling Generator Power Plant Portfolios and Pollution Taxes in Electric Power Supply Chain in their power plants. This paper proposes significant extensions to the electric power supply chain network generators faced with a portfolio of power plant options and subject to pollution taxes. We then demonstrate

  4. Tax Credits for Renewable Energy Facilities

    Broader source: Energy.gov [DOE]

    A renewable energy facility is defined as one that generates at least 50 kilowatts (kW) of electricity from solar power or at least 1 megawatt (MW) from wind power, biomass resources, landfill ga...

  5. RF Power Generation in LINAC4

    E-Print Network [OSTI]

    Brunner, O; Schwerg, J N

    2010-01-01

    Linac4 is a lin­ear ac­cel­er­a­tor for neg­a­tive Hy­dro­gen ions (H-) which will re­place the old Linac2 as lin­ear in­jec­tor for the CERN ac­cel­er­a­tors. Its high­er en­er­gy of 160 MeV will give in­creased beam in­ten­si­ty in the down­stream ma­chines. Linac4 is about 100 m long, nor­mal-con­duct­ing, and will be housed in a tun­nel about 12 m below ground. The Linac4 tun­nel will be con­nect­ed to the ex­ist­ing chain of ac­cel­er­a­tors and can be ex­tend­ed to the new in­jec­tion chain. The high RF power for the Linac4 ac­cel­er­at­ing struc­tures will be gen­er­at­ed by thir­teen 1.3 MW klystrons, pre­vi­ous­ly used for the CERN LEP ac­cel­er­a­tor, and six new 2.8 MW klystrons of all op­er­at­ing at a fre­quen­cy of 352.2 MHz. The in­te­gra­tion of the RF power sys­tem in the build­ing is pre­sent­ed. The tech­ni­cal spec­i­fi­ca­tions and the per­for­mance of the var­i­ous high-pow­er el­e­ments are dis­cussed, ...

  6. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience

    SciTech Connect (OSTI)

    Cochran, J.; Bird, L.; Heeter, J.; Arent, D. A.

    2012-04-01

    Many countries -- reflecting very different geographies, markets, and power systems -- are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This study documents the diverse approaches to effective integration of variable renewable energy among six countries -- Australia (South Australia), Denmark, Germany, Ireland, Spain, and the United States (Western region-Colorado and Texas)-- and summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. Each country has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. The ability to maintain a broad ecosystem perspective, to organize and make available the wealth of experiences, and to ensure a clear path from analysis to enactment should be the primary focus going forward.

  7. Large Industrial Renewable Energy Purchase Program (New Brunswick)

    Broader source: Energy.gov [DOE]

    Beginning January 1, 2012 the Large Industrial Renewable Energy Purchase Program allows NB Power to purchase renewable energy generated by its largest customers at a rate of $95/MWh. This...

  8. US Renewable Futures in the GCAM

    SciTech Connect (OSTI)

    Smith, Steven J.; Mizrahi, Andrew H.; Karas, Joseph F.; Nathan, Mayda

    2011-10-06

    This project examines renewable energy deployment in the United States using a version of the GCAM integrated assessment model with detailed a representation of renewables, the GCAM-RE. Electricity generation was modeled in four generation segments and 12-subregions. This level of regional and sectoral detail allows a more explicit representation of renewable energy generation. Wind, solar thermal power, and central solar PV plants are implemented in explicit resource classes with new intermittency parameterizations appropriate for each technology. A scenario analysis examines a range of assumptions for technology characteristics, climate policy, and long-distance transmission. We find that renewable generation levels grow over the century in all scenarios. As expected, renewable generation increases with lower renewable technology costs, more stringent climate policy, and if alternative low-carbon technology are not available. The availability of long distance transmission lowers policy costs and changes the renewable generation mix.

  9. Commitment of Electric Power Generators under Stochastic Market Prices

    E-Print Network [OSTI]

    Mazumdar, Mainak

    that when an electric power producer has the option of trading electricity at market prices, an optimal unitCommitment of Electric Power Generators under Stochastic Market Prices Jorge Valenzuela 1 November 2001 1 Corresponding author. #12;1 Commitment of Electric Power Generators under Stochastic Market

  10. Supplying Renewable Energy to Deferrable Loads: Algorithms and Economic Analysis

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Supplying Renewable Energy to Deferrable Loads: Algorithms and Economic Analysis Anthony compares to price responsive demand in terms capacity gains and energy market revenues for renewable to renewable generation. I. INTRODUCTION Renewable power is emerging as a mainstream source of energy supply

  11. Direct charge radioisotope activation and power generation

    DOE Patents [OSTI]

    Lal, Amit (Madison, WI); Li, Hui (Madison, WI); Blanchard, James P. (Madison, WI); Henderson, Douglass L. (Madison, WI)

    2002-01-01

    An activator has a base on which is mounted an elastically deformable micromechanical element that has a section that is free to be displaced toward the base. An absorber of radioactively emitted particles is formed on the base or the displaceable section of the deformable element and a source is formed on the other of the displaceable section or the base facing the absorber across a small gap. The radioactive source emits charged particles such as electrons, resulting in a buildup of charge on the absorber, drawing the absorber and source together and storing mechanical energy as the deformable element is bent. When the force between the absorber and the source is sufficient to bring the absorber into effective electrical contact with the source, discharge of the charge between the source and absorber allows the deformable element to spring back, releasing the mechanical energy stored in the element. An electrical generator such as a piezoelectric transducer may be secured to the deformable element to convert the released mechanical energy to electrical energy that can be used to provide power to electronic circuits.

  12. Analysis of Wind Power Generation of Texas 

    E-Print Network [OSTI]

    Liu, Z.; Haberl, J.; Subbarao, K.; Baltazar, J. C.

    2007-01-01

    ? Not appropriate for predicting hourly power using power curve ? On-site wind: ? Measured power vs. on-site wind following well the power curve prediction ? No curtailment at this site ? Green curves showing a band of 5 MW from the power curve WHY NOT Use... APPLICATION ? Indian Mesa Wind Farm Measured MW Plotted Against Hourly NOAA Wind Speed? ANN significantly improves the prediction of on-site wind speed compared to NOAA. ? Green curves showing a band of 5 MW from the power curve Hourly Wind Power...

  13. Synthesis and Characterization of Iridium- and Cobalt-based Skutterudites for Thermoelectric Power Generation

    E-Print Network [OSTI]

    King, Daniel Jay

    2014-01-01

    for thermoelectric power generation,” 235th ACS Nationalfor Thermoelectric Power Generation A dissertation submittedfor Thermoelectric Power Generation by Daniel Jay King, Jr.

  14. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    R. and G. Barbose. 2008. Renewables Portfolio Standards inwww.cpuc.ca.gov/PUC/energy/Renewables/index.htm (accessed2008. Deploying Renewables - Principles for Effective

  15. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    and Renewable Energy (Solar Energy Technologies Program) andand Renewable Energy (Solar Energy Technologies Program) andand Renewable Energy (Solar Energy Technologies Program) and

  16. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    Efficiency and Renewable Energy (Solar Energy TechnologiesEfficiency and Renewable Energy (Solar Energy TechnologiesEfficiency and Renewable Energy (Solar Energy Technologies

  17. Generator powered electrically heated diesel particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V; Paratore, Jr., Michael J

    2014-03-18

    A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.

  18. Market Power and Technological Bias: The Case of Electricity Generation

    E-Print Network [OSTI]

    Twomey, Paul; Neuhoff, Karsten

    2006-03-14

    .twomey@econ.cam.ac.uk, karsten.neuhoff@econ.cam.ac.uk. 1 1 Introduction Renewable energy technologies are playing an increasingly important role in the portfolio mix of electricity generation. However, the intermittent nature of output from wind turbines and solar panels... . This intermittency discount is not a market failure but simply reflects the value of electricity provided by different technologies. Building on this base case the paper assesses the impact of monopolist and strategic behaviour of conventional generation companies...

  19. Renewable Energy World Conference and Expo North America

    Broader source: Energy.gov [DOE]

    Renewable Energy World Conference & Expo North America will be co-located with Power Generation Week, providing networking opportunities with 20,000+ professionals and key decision makers.

  20. Fact #840: September 29, 2014 World Renewable Electricity Consumption...

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

    Consumption is Growing Electricity generated from sources that are renewable - hydroelectric power, bio-fuels, geothermal, solar, wind, wood, waste - have grown 150% from 1980 to...

  1. Evolution of Wholesale Electricity Market Design with Increasing Levels of Renewable Generation

    SciTech Connect (OSTI)

    Ela, E.; Milligan, M.; Bloom, A.; Botterud, A.; Townsend, A.; Levin, T.

    2014-09-01

    Variable generation such as wind and photovoltaic solar power has increased substantially in recent years. Variable generation has unique characteristics compared to the traditional technologies that supply energy in the wholesale electricity markets. These characteristics create unique challenges in planning and operating the power system, and they can also influence the performance and outcomes from electricity markets. This report focuses on two particular issues related to market design: revenue sufficiency for long-term reliability and incentivizing flexibility in short-term operations. The report provides an overview of current design and some designs that have been proposed by industry or researchers.

  2. Developing and Implementing the Foundation for a Renewable Energy-Based "Distribution Generation Micro-grid": A California Energy Commission Public Interest Energy Research Co-Funded Program 

    E-Print Network [OSTI]

    Lilly, P.; Sebold, F. D.; Carpenter, M.; Kitto, W.

    2002-01-01

    The California Energy Commission has been implementing its Public Interest Energy Research (PIER) and Renewable Energy Programs since early 1998. In the last two years, the demand for renewable distributed generation systems has increased rapidly...

  3. Microbial Fuel Cell Coupling: Clean, renewable energy generated from wastewater amongst other potential uses

    E-Print Network [OSTI]

    Reynolds, Mark

    2014-01-01

    1 2014 Microbial Fuel Cell Coupling: Clean, renewable energyin microbial electrolysis cells. Int. J. Hydrogen Energy.

  4. 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.

  5. PUCT - Registration Form for Power Generation Companies and Self...

    Open Energy Info (EERE)

    PUCT - Registration Form for Power Generation Companies and Self-Generators Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: PUCT - Registration Form for...

  6. PUCT Substantive Rule 25.109 - Registration of Power Generation...

    Open Energy Info (EERE)

    PUCT Substantive Rule 25.109 - Registration of Power Generation Companies and Self-Generators Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document-...

  7. Incentive Cost Recovery Rule for Nuclear Power Generation (Louisiana)

    Broader source: Energy.gov [DOE]

    The Incentive Cost Recovery Rule for Nuclear Power Generation establishes guidelines for any utility seeking to develop a nuclear power plant in Louisiana. The rule clarifies, as well as...

  8. High-density thermoelectric power generation and nanoscale thermal metrology

    E-Print Network [OSTI]

    Mayer, Peter (Peter Matthew), 1978-

    2007-01-01

    Thermoelectric power generation has been around for over 50 years but has seen very little large scale implementation due to the inherently low efficiencies and powers available from known materials. Recent material advances ...

  9. Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation

    E-Print Network [OSTI]

    Eto, Joseph H.

    2011-01-01

    wind Time (Seconds) Figure 5-3. The Power Delivered by Primary Frequency Control Actions via Generator

  10. Global Installed Capacity of Coal Fired Power Generation to Reach...

    Open Energy Info (EERE)

    offers comprehensive data with regard to the size, growth, and forecast of this market. Coal fired power generation has been a very common energy producing technique for...

  11. Electric Power Generation Using Geothermal Fluid Coproduced from...

    Open Energy Info (EERE)

    Electric Power Generation Using Geothermal Fluid Coproduced from Oil andor Gas Wells Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Electric...

  12. Modeling Generator Power Plant Portfolios and Pollution Taxes

    E-Print Network [OSTI]

    Nagurney, Anna

    Modeling Generator Power Plant Portfolios and Pollution Taxes in Electric Power Supply Chain;Modeling Energy Taxes and Credits: The Genco's Choice · Each Genco has a portfolio of power plants · Each power plant can have different supply costs and transaction costs · Supply costs can reflect capital

  13. Generating Circuit Current Constraints to Guarantee Power Grid Safety

    E-Print Network [OSTI]

    Najm, Farid N.

    Generating Circuit Current Constraints to Guarantee Power Grid Safety Zahi Moudallal ECE Dept, as well as power grid-aware placement and floorplanning. We give a rigorous problem definition and develop of power grids is a necessity in modern chip design. We will use the term "power grid" to refer to either

  14. 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.

  15. Impact of Generator Flexibility on Electric System Costs and Integration of Renewable Energy

    Broader source: Energy.gov [DOE]

    Flexibility of traditional generators plays an important role in accommodating the increased variability and uncertainty of wind and solar on the electric power system. Increased flexibility can be achieved with changes to operational practices or upgrades to existing generation. One challenge is in understanding the value of increasing flexibility, and how this value may change given higher levels of variable generation. This study uses a commercial production cost model to measure the impact of generator flexibility on the integration of wind and solar generators. We use a system that is based on two balancing areas in the Western United States with a range of wind and solar penetrations between 15% and 60%, where instantaneous penetration of wind and solar is limited to 80%.

  16. Impact of Generator Flexibility on Electric System Costs and Integration of Renewable Energy

    SciTech Connect (OSTI)

    Palchak, D.; Denholm, P.

    2014-07-01

    Flexibility of traditional generators plays an important role in accommodating the increased variability and uncertainty of wind and solar on the electric power system. Increased flexibility can be achieved with changes to operational practices or upgrades to existing generation. One challenge is in understanding the value of increasing flexibility, and how this value may change given higher levels of variable generation. This study uses a commercial production cost model to measure the impact of generator flexibility on the integration of wind and solar generators. We use a system that is based on two balancing areas in the Western United States with a range of wind and solar penetrations between 15% and 60%, where instantaneous penetration of wind and solar is limited to 80%.

  17. EA-1726: Kahuku Wind Power, LLC Wind Power Generation Facility...

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

    Us Offices May 3, 2010 EA-1726: Final Environmental Assessment Loan Guarantee to Kahuku Wind Power, LLC for Construction of the Kahuku Wind Power Facility in Kahuku, O'ahu,...

  18. Fault Current Issues for Market Driven Power Systems with Distributed Generation

    E-Print Network [OSTI]

    1 Fault Current Issues for Market Driven Power Systems with Distributed Generation Natthaphob of installing distributed generation (DG) to electric power systems. The proliferation of new generators creates Terms--Distributed / dispersed generation, power distri- bution, power system protection, fault

  19. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience, Summary for Policymakers

    SciTech Connect (OSTI)

    Cochran, J.; Bird, L.; Heeter, J.; Arent, D. A.

    2012-04-01

    Many countries -- reflecting very different geographies, markets, and power systems -- are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

  20. Integrating Variable Renewable Energy in Electric Power Markets. Best Practices from International Experience

    SciTech Connect (OSTI)

    Cochran, Jaquelin; Bird, Lori; Heeter, Jenny; Arent, Douglas J.

    2012-04-30

    Many countries—reflecting very different geographies, markets, and power systems—are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

  1. Integrating Variable Renewable Energy in Electric Power Markets. Best Practices from International Experience, Summary for Policymakers

    SciTech Connect (OSTI)

    Cochran, Jaquelin; Bird, Lori; Heeter, Jenny; Arent, Douglas J.

    2012-04-30

    Many countries - reflecting very different geographies, markets, and power systems - are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

  2. Distributed Generation Investment by a Microgrid under Uncertainty

    E-Print Network [OSTI]

    Siddiqui, Afzal

    2008-01-01

    Delivery and Energy Reliability, Renewable and DistributedDistributed Energy Program, under the Assistant Secretary of Energy Efficiency and Renewable Energydistributed generation power projects, report NREL/SR-200-28053. Golden, CO, USA: National Renewable Energy

  3. Abstract--Since the renewable energy is popularly applied in power industry, especially the smart grid is fast developing all

    E-Print Network [OSTI]

    Chen, Zhe

    , the wind farm electrical systems present some unique challenges for protection, monitoring and control energy management, smart metering and distribution automation [1]. This paper reviews the significance1 Abstract-- Since the renewable energy is popularly applied in power industry, especially

  4. HIGH EFFICIENCY GENERATION OF HYDROGEN FUELS USING NUCLEAR POWER

    SciTech Connect (OSTI)

    BROWN,LC; BESENBRUCH,GE; LENTSCH,RD; SCHULTZ,KR; FUNK,JF; PICKARD,PS; MARSHALL,AC; SHOWALTER,SK

    2003-06-01

    OAK B202 HIGH EFFICIENCY GENERATION OF HYDROGEN FUELS USING NUCLEAR POWER. Combustion of fossil fuels, used to power transportation, generate electricity, heat homes and fuel industry provides 86% of the world's energy. Drawbacks to fossil fuel utilization include limited supply, pollution, and carbon dioxide emissions. Carbon dioxide emissions, thought to be responsible for global warming, are now the subject of international treaties. Together, these drawbacks argue for the replacement of fossil fuels with a less-polluting potentially renewable primary energy such as nuclear energy. Conventional nuclear plants readily generate electric power but fossil fuels are firmly entrenched in the transportation sector. Hydrogen is an environmentally attractive transportation fuel that has the potential to displace fossil fuels. Hydrogen will be particularly advantageous when coupled with fuel cells. Fuel cells have higher efficiency than conventional battery/internal combustion engine combinations and do not produce nitrogen oxides during low-temperature operation. Contemporary hydrogen production is primarily based on fossil fuels and most specifically on natural gas. When hydrogen is produced using energy derived from fossil fuels, there is little or no environmental advantage. There is currently no large scale, cost-effective, environmentally attractive hydrogen production process available for commercialization, nor has such a process been identified. The objective of this work is to find an economically feasible process for the production of hydrogen, by nuclear means, using an advanced high-temperature nuclear reactor as the primary energy source. Hydrogen production by thermochemical water-splitting (Appendix A), a chemical process that accomplishes the decomposition of water into hydrogen and oxygen using only heat or, in the case of a hybrid thermochemical process, by a combination of heat and electrolysis, could meet these goals. Hydrogen produced from fossil fuels has trace contaminants (primarily carbon monoxide) that are detrimental to precious metal catalyzed fuel cells, as is now recognized by many of the world's largest automobile companies. Thermochemical hydrogen will not contain carbon monoxide as an impurity at any level. Electrolysis, the alternative process for producing hydrogen using nuclear energy, suffers from thermodynamic inefficiencies in both the production of electricity and in electrolytic parts of the process. The efficiency of electrolysis (electricity to hydrogen) is currently about 80%. Electric power generation efficiency would have to exceed 65% (thermal to electrical) for the combined efficiency to exceed the 52% (thermal to hydrogen) calculated for one thermochemical cycle. Thermochemical water-splitting cycles have been studied, at various levels of effort, for the past 35 years. They were extensively studied in the late 70s and early 80s but have received little attention in the past 10 years, particularly in the U.S. While there is no question about the technical feasibility and the potential for high efficiency, cycles with proven low cost and high efficiency have yet to be developed commercially. Over 100 cycles have been proposed, but substantial research has been executed on only a few. This report describes work accomplished during a three-year project whose objective is to ''define an economically feasible concept for production of hydrogen, by nuclear means, using an advanced high temperature nuclear reactor as the energy source.'' The emphasis of the first phase was to evaluate thermochemical processes which offer the potential for efficient, cost-effective, large-scale production of hydrogen from water in which the primary energy input is high temperature heat from an advanced nuclear reactor and to select one (or, at most three) for further detailed consideration. During Phase 1, an exhaustive literature search was performed to locate all cycles previously proposed. The cycles located were screened using objective criteria to determine which could benefit, in terms of efficien

  5. Tidal Energy System for On-Shore Power Generation

    SciTech Connect (OSTI)

    Bruce, Allan J

    2012-06-26

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

  6. Power Generation Asset Management Technology Roadmap M

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

    conditions degrade, and the likelihood of equipment damage or failure increases. Such failures can result in forced outages of units that can hamper BPA's ability to meet power...

  7. Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario

    SciTech Connect (OSTI)

    Denholm, P.; Wan, Y. H.; Hummon, M.; Mehos, M.

    2013-03-01

    This analysis evaluates CSP with TES in a scenario where California derives 33% of its electricity from renewable energy sources. It uses a commercial grid simulation tool to examine the avoided operational and capacity costs associated with CSP and compares this value to PV and a baseload generation with constant output. Overall, the analysis demonstrates several properties of dispatchable CSP, including the flexibility to generate during periods of high value and avoid generation during periods of lower value. Of note in this analysis is the fact that significant amount of operational value is derived from the provision of reserves in the case where CSP is allowed to provide these services. This analysis also indicates that the 'optimal' configuration of CSP could vary as a function of renewable penetration, and each configuration will need to be evaluated in terms of its ability to provide dispatchable energy, reserves, and firm capacity. The model can be used to investigate additional scenarios involving alternative technology options and generation mixes, applying these scenarios within California or in other regions of interest.

  8. Nonlinear Electrical Simulation of High-Power Synchronous Generator System

    E-Print Network [OSTI]

    Wu, Thomas

    power density, the generator operates in nonlinear region of the magnetic circuit. Magnetic Finite for motor simulation [I]. Fardoun simulated permanent-magnet machine drive system using SPlCE [2]. NatarajanNonlinear Electrical Simulation of High-Power Synchronous Generator System Jie Chen and Thomas Wu

  9. Scenario Generation for Price Forecasting in Restructured Wholesale Power Markets

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    markets could aid in the design of appropriate price forecasting tools for such markets. Scenario1 Scenario Generation for Price Forecasting in Restructured Wholesale Power Markets Qun Zhou, restructured wholesale power markets, scenario generation, ARMA model, moment-matching method I. INTRODUCTION

  10. Electromagnetic Generators for Portable Power Applications Matthew Kurt Senesky

    E-Print Network [OSTI]

    Sanders, Seth

    -- the electrochemical battery -- has failed to shrink at the same rate as circuits and sensors. While this growing or turbines paired with electrical generators. Producing such a system to run efficiently on the milli to power tools to electric vehicle drives to wind power generation -- that would benefit from high

  11. Stochastic Co-optimization for Hydro-Electric Power Generation

    E-Print Network [OSTI]

    1 Stochastic Co-optimization for Hydro-Electric Power Generation Shi-Jie Deng, Senior Member, IEEE the optimal scheduling problem faced by a hydro-electric power producer that simultaneously participates in multiple markets. Specifically, the hydro-generator participates in both the electricity spot market

  12. The Treatment of Renewable Energy Certificates, Emissions Allowances, and Green Power Programs in State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Holt, Edward A.; Wiser, Ryan H.

    2007-01-01

    of Carbon Regulation for Green Power Markets. ” NREL (and Blair Swezey, 2006. “Green Power Marketing in the UnitedEmissions Allowances, and Green Power Programs in State

  13. ReEDS Modeling of the President’s 2020 U.S. Renewable Electricity Generation Goal

    Broader source: Energy.gov [DOE]

    The primary objective of the analysis is to project future contributions from wind, solar, and geothermal technologies to the U.S. electricity generation mix in the 2020 time period. While this exercise is motivated by an interest in assessing the feasibility of achieving the Obama's Administration's goal of doubling renewable generation during that timeframe, the analysis only evaluates one interpretation of the goal and does not comprehensively evaluate others. The report introduction provides further background for this motivation. The analysis presented in this report was requested by the Office of Energy Efficiency and Renewable Energy in the U.S. Department of Energy.

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

    E-Print Network [OSTI]

    Norwood, Zachary Mills

    2011-01-01

    scale power plants. Distributed renewable energy has alreadypenetration of renewable distributed energy generation.distributed generation effectively bypasses many of the hurdles found in siting and permitting other renewable energy

  15. Nuclear power generation and fuel cycle report 1997

    SciTech Connect (OSTI)

    1997-09-01

    Nuclear power is an important source of electric energy and the amount of nuclear-generated electricity continued to grow as the performance of nuclear power plants improved. In 1996, nuclear power plants supplied 23 percent of the electricity production for countries with nuclear units, and 17 percent of the total electricity generated worldwide. However, the likelihood of nuclear power assuming a much larger role or even retaining its current share of electricity generation production is uncertain. The industry faces a complex set of issues including economic competitiveness, social acceptance, and the handling of nuclear waste, all of which contribute to the uncertain future of nuclear power. Nevertheless, for some countries the installed nuclear generating capacity is projected to continue to grow. Insufficient indigenous energy resources and concerns over energy independence make nuclear electric generation a viable option, especially for the countries of the Far East.

  16. Dynamic Analysis of Hybrid Energy Systems under Flexible Operation and Variable Renewable Generation -- Part I: Dynamic Performance Analysis and Part II: Dynamic Cost

    SciTech Connect (OSTI)

    Humberto E. Garcia; Amit Mohanty; Wen-Chiao Lin; Robert S. Cherry

    2013-04-01

    Dynamic analysis of hybrid energy systems (HES) under flexible operation and variable renewable generation is considered in order to better understand various challenges and opportunities associated with the high system variability arising from the integration of renewable energy into the power grid. Unique consequences are addressed by devising advanced HES solutions in which multiple forms of energy commodities, such as electricity and chemical products, may be exchanged. Dynamic models of various unit operations are developed and integrated within two different HES options. One HES option, termed traditional, produces electricity only and consists of a primary heat generator (PHG) (e.g., a small modular reactor), a steam turbine generator, a wind farm, and a battery storage. The other HES option, termed advanced, includes not only the components present in the traditional option but also a chemical plant complex to repurpose excess energy for non-electricity services, such as for the production of chemical goods (e.g., transportation fuel). In either case, a given HES is connected to the power grid at a point of common coupling and requested to deliver a certain electricity generation profile as dictated by a regional power grid operator based on a predicted demand curve. Dynamic analysis of these highly-coupled HES are performed to identify their key dynamical properties and limitations and to prescribe solutions for best managing and mitigating the high variability introduced from incorporating renewable energy into the energy mix. A comparative dynamic cost analysis is also conducted to determine best HES options. The cost function includes a set of metrics for computing fixed costs, such as fixed operations and maintenance (O&M) and overnight capital costs, and also variable operational costs, such as cost of variability, variable O&M cost, and cost of environmental impact, together with revenues. Assuming different options for implementing PHG (e.g., natural gas, coal, nuclear), preliminary results identify the level of renewable penetration at which a given advanced HES option (e.g., a nuclear hybrid) becomes increasingly more economical than a traditional electricity-only generation solution. Conditions are also revealed under which carbon resources may be better utilized as carbon sources for chemical production rather than as combustion material for electricity generation.

  17. Effects on electrical distribution networks of dispersed power generation at high levels of connection penetration

    SciTech Connect (OSTI)

    Longrigg, P.

    1983-07-01

    The advent and deployment of significant levels of photovoltaic and wind energy generation in the spatially dispersed mode (i.e., residential and intermediate load centers) may have deleterious effects upon existing protective relay equipment and its time-current coordination on radial distribution circuits to which power conditioning equipment may be connected for power sell-back purposes. The problems that may arise involve harmonic injection from power conditioning inverters that can affect protective relays and cause excessive voltage and current from induced series and parallel resonances on feeders and connected passive equipment. Voltage regulation, var requirements, and consumer metering can also be affected by this type of dispersed generation. The creation of islands of supply is also possible, particularly on rural supply systems. This paper deals mainly with the effects of harmonics and short-circuit currents from wind energy conversion systems (WECS) and photovoltaic (PV) systems upon the operating characteristics of distribution networks and relays and other protective equipment designed to ensure the safety and supply integrity of electrical utility networks. Traditionally, electrical supply networks have been designed for one-way power flow-from generation to load, with a balance maintained between the two by means of automatic generation and load-frequency controls. Dispersed generation, from renewables like WECS or PV or from nonrenewable resources, can change traditional power flow. These changes must be dealt with effectively if renewable energy resources are to be integrated into the utility distribution system. This paper gives insight into these problems and proposes some solutions.

  18. Nuclear power generation and fuel cycle report 1996

    SciTech Connect (OSTI)

    1996-10-01

    This report presents the current status and projections through 2015 of nuclear capacity, generation, and fuel cycle requirements for all countries using nuclear power to generate electricity for commercial use. It also contains information and forecasts of developments in the worldwide nuclear fuel market. Long term projections of U.S. nuclear capacity, generation, and spent fuel discharges for two different scenarios through 2040 are developed. A discussion on decommissioning of nuclear power plants is included.

  19. harmonic generation at a critical power in inhomogeneous doubly

    E-Print Network [OSTI]

    Soljačić, Marin

    (2) and (3) harmonic generation at a critical power in inhomogeneous doubly resonant cavities- and third-harmonic generation via (2) and (3) nonlinearities. We find that conversion efficiency. Drummond, K. J. McNeil, and D. F. Walls, "Non-equilibrium transitions in sub/second harmonic generation I

  20. Piezoelectric and Semiconducting Coupled Power Generating Process of a

    E-Print Network [OSTI]

    Wang, Zhong L.

    observation of piezoelectric generation from a single ZnO wire/belt for illustrating a fundamental process of the electric generator relies on the unique coupling of piezoelectric and semiconducting dual properties of ZnPiezoelectric and Semiconducting Coupled Power Generating Process of a Single ZnO Belt

  1. Energy Storage System Sizing for Smoothing Power Generation , P. Bydlowski

    E-Print Network [OSTI]

    Boyer, Edmond

    Energy Storage System Sizing for Smoothing Power Generation of Direct J. Aubry1 , P. Bydlowski 1 E-mail: judicael.aubry Abstract This paper examines the sizing energy storage system (ESS) for energy converter. Keywords: Energy Storage System (ESS), power smoothing, Direct Wave Energy Converter, Supercapacitor, Power

  2. C Produced by Nuclear Power Reactors Generation and Characterization of

    E-Print Network [OSTI]

    Haviland, David

    14 C Produced by Nuclear Power Reactors ­ Generation and Characterization of Gaseous, Liquid in the terrestrial environment in the vicinity of two European nuclear power plants. Radiocarbon 46(2)863­868. III levels in the vicinity of the Lithuanian nuclear power plant Ignalina. Nuclear Instruments and Methods

  3. HEITSCH, R OMISCH --HYDRO-STORAGE SUBPROBLEMS IN POWER GENERATION 1 Hydro-Storage Subproblems in Power Generation

    E-Print Network [OSTI]

    Römisch, Werner

    HEITSCH, R ¨OMISCH -- HYDRO-STORAGE SUBPROBLEMS IN POWER GENERATION 1 Hydro-Storage Subproblems that owns a hydro-thermal generation sys- tem and trades on the power market often lead to complex stochas- tic optimization problems. We present a new approach to solving stochastic hydro-storage subproblems

  4. Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation

    SciTech Connect (OSTI)

    Eto, Joseph H.; Undrill, John; Mackin, Peter; Daschmans, Ron; Williams, Ben; Haney, Brian; Hunt, Randall; Ellis, Jeff; Illian, Howard; Martinez, Carlos; O'Malley, Mark; Coughlin, Katie; LaCommare, Kristina Hamachi

    2010-12-20

    An interconnected electric power system is a complex system that must be operated within a safe frequency range in order to reliably maintain the instantaneous balance between generation and load. This is accomplished by ensuring that adequate resources are available to respond to expected and unexpected imbalances and restoring frequency to its scheduled value in order to ensure uninterrupted electric service to customers. Electrical systems must be flexible enough to reliably operate under a variety of"change" scenarios. System planners and operators must understand how other parts of the system change in response to the initial change, and need tools to manage such changes to ensure reliable operation within the scheduled frequency range. This report presents a systematic approach to identifying metrics that are useful for operating and planning a reliable system with increased amounts of variable renewable generation which builds on existing industry practices for frequency control after unexpected loss of a large amount of generation. The report introduces a set of metrics or tools for measuring the adequacy of frequency response within an interconnection. Based on the concept of the frequency nadir, these metrics take advantage of new information gathering and processing capabilities that system operators are developing for wide-area situational awareness. Primary frequency response is the leading metric that will be used by this report to assess the adequacy of primary frequency control reserves necessary to ensure reliable operation. It measures what is needed to arrest frequency decline (i.e., to establish frequency nadir) at a frequency higher than the highest set point for under-frequency load shedding within an interconnection. These metrics can be used to guide the reliable operation of an interconnection under changing circumstances.

  5. Linkages for DOE's Solar Photovoltaic R&D to Commercial Renewable Power from Solar Energy

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy‘s (DOE) Solar Photovoltaic R&D Subprogram promotes the development of cost-effective systems for directly converting solar energy into electricity for residential, commercial, and industrial applications. This study was commissioned to assess the extent to which the knowledge outputs of R&D funded by the DOE Solar PV Subprogram are linked to downstream developments in commercial renewable power. A second purpose was to identify spillovers of the resulting knowledge to other areas of application. A third purpose was to lend support to a parallel benefit-cost study by contributing evidence of attribution of benefits to DOE.

  6. PLATO Power--a robust, low environmental impact power generation system for the Antarctic plateau

    E-Print Network [OSTI]

    Ashley, Michael C. B.

    PLATO Power--a robust, low environmental impact power generation system for the Antarctic plateau the power generation and management system of PLATO. Two redundant arrays of solar panels and a multiply astronomical facilities on the Antarctic plateau, offering minimum environmental impact and requiring minimal

  7. Combined fuel and air staged power generation system

    SciTech Connect (OSTI)

    Rabovitser, Iosif K; Pratapas, John M; Boulanov, Dmitri

    2014-05-27

    A method and apparatus for generation of electric power employing fuel and air staging in which a first stage gas turbine and a second stage partial oxidation gas turbine power operated in parallel. A first portion of fuel and oxidant are provided to the first stage gas turbine which generates a first portion of electric power and a hot oxidant. A second portion of fuel and oxidant are provided to the second stage partial oxidation gas turbine which generates a second portion of electric power and a hot syngas. The hot oxidant and the hot syngas are provided to a bottoming cycle employing a fuel-fired boiler by which a third portion of electric power is generated.

  8. Protective, Modular Wave Power Generation System

    SciTech Connect (OSTI)

    Vvedensky, Jane M.; Park, Robert Y.

    2012-11-27

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

  9. Safe Operation of Backup Power Generators 

    E-Print Network [OSTI]

    Smith, David

    2006-04-19

    equipped with a grounding pin. ? Never plug the generator into a wall outlet in a house or other circuit. This practice, known as ?back feeding,? is extremely dangerous because it energizes the failed electrical wiring supply- ing the home. This could... stream_source_info pdf_2312.pdf.txt stream_content_type text/plain stream_size 6389 Content-Encoding ISO-8859-1 stream_name pdf_2312.pdf.txt Content-Type text/plain; charset=ISO-8859-1 E-395 04/06 Portable generators...

  10. Multi-port DC-DC Power Converter for Renewable Energy Application 

    E-Print Network [OSTI]

    Chou, Hung-Ming

    2010-01-16

    In recent years, there has been lots of emphasis put on the development of renewable energy. While considerable improvement on renewable energy has been made, there are some inherent limitations for these renewable energies. For example, for solar...

  11. Putting renewables and energy efficiency to work: How many jobs can the clean energy industry generate in the US?

    E-Print Network [OSTI]

    Kammen, Daniel M.

    clean energy supply can provide greater energy independence and security, has notable environmentalPutting renewables and energy efficiency to work: How many jobs can the clean energy industry generate in the US? Max Wei a,Ă, Shana Patadia b , Daniel M. Kammen a a Energy and Resources Group, 310

  12. Mass Market Demand Response and Variable Generation Integration Issues: A Scoping Study

    E-Print Network [OSTI]

    Cappers, Peter

    2012-01-01

    T. (2005) Variability of wind power and other renewables:with large amounts of wind power. Final report, IEA WINDto increase acceptable wind power generation. Wind Energy.

  13. Generating power with drained coal mine methane

    SciTech Connect (OSTI)

    2005-09-01

    The article describes the three technologies most commonly used for generating electricity from coal mine methane: internal combustion engines, gas turbines, and microturbines. The most critical characteristics and features of these technologies, such as efficiency, output and size are highlighted. 5 refs.

  14. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    than other types of renewable energy. Among the six statestypes of solar applications and project sizes. Solar is somewhat unique among renewable energy

  15. Power Generation and Power Use Decisions in an Industrial Process 

    E-Print Network [OSTI]

    Gilbert, J. S.; Niess, R. C.

    1987-01-01

    on how much power must be made, and has little effect on the fuel-charged-to-power cost. I.n fact, the heat rate on a high-efficiency turbine may be slightly higher than for a low-efficiency turbine, due to greater gear-box losses. The argument may... COMPOSITE E w c: ::::> to < c: w a. ::E w to- ENERGY (0) Figure 3 Hot and Cold Compostte Curves 399 T, T~ ENERGY (0) Figure 2 [Qu1valent Coo1\

  16. Power System Modeling of 20percent Wind-Generated Electricity by 2030

    E-Print Network [OSTI]

    Hand, Maureen

    2008-01-01

    Contribution to U.S. Electricity Supply. National Renewable20% of the nation's electricity from wind technology byTERMS wind-generated electricity; wind energy; 20% wind

  17. Plasma plume MHD power generator and method

    DOE Patents [OSTI]

    Hammer, James H. (Livermore, CA)

    1993-01-01

    Highly-conducting plasma plumes are ejected across the interplanetary magnetic field from a situs that is moving relative to the solar wind, such as a spacecraft or an astral body, such as the moon, having no magnetosphere that excludes the solar wind. Discrete plasma plumes are generated by plasma guns at the situs extending in opposite directions to one another and at an angle, preferably orthogonal, to the magnetic field direction of the solar wind plasma. The opposed plumes are separately electrically connected to their source by a low impedance connection. The relative movement between the plasma plumes and the solar wind plasma creates a voltage drop across the plumes which is tapped by placing the desired electrical load between the electrical connections of the plumes to their sources. A portion of the energy produced may be used in generating the plasma plumes for sustained operation.

  18. 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.

  19. Low-Power Maximum Power Point Tracker with Digital Control for Thermophotovoltaic Generators

    E-Print Network [OSTI]

    Pilawa, Robert

    This paper describes the design, optimization, and evaluation of the power electronics circuitry for a low-power portable thermophotovotaic (TPV) generator system. TPV system is based on a silicon micro-reactor design and ...

  20. Self-powered wireless sensor system using MEMS piezoelectric micro power generator (PMPG)

    E-Print Network [OSTI]

    Xia, YuXin, M.B.A. Sloan School of Management.

    2006-01-01

    A thin-film lead zirconate titanate, Pb(Zr,Ti)03, MEMS Piezoelectric Micro Power Generator (PMPG) has been integrated with a commercial wireless sensor node (Telos), to demonstrate a self-powered RF temperature sensor ...

  1. Integration of Renewable Energy Sources in Future Power Systems: The Role of Storage

    E-Print Network [OSTI]

    Weitemeyer, Stefan; Vogt, Thomas; Agert, Carsten

    2014-01-01

    Integrating a high share of electricity from non-dispatchable Renewable Energy Sources in a power supply system is a challenging task. One option considered in many studies dealing with prospective power systems is the installation of storage devices to balance the fluctuations in power production. However, it is not yet clear how soon storage devices will be needed and how the integration process depends on different storage parameters. Using long-term solar and wind energy power production data series, we present a modelling approach to investigate the influence of storage size and efficiency on the pathway towards a 100% RES scenario. Applying our approach to data for Germany, we found that up to 50% of the overall electricity demand can be met by an optimum combination of wind and solar resources without both curtailment and storage devices if the remaining energy is provided by sufficiently flexible power plants. Our findings show further that the installation of small, but highly efficient storage devic...

  2. MAximum Multicore POwer (MAMPO) -An Automatic Multithreaded Synthetic Power Virus Generation

    E-Print Network [OSTI]

    John, Lizy Kurian

    and cooling issues along with a world-wide initiative towards green computing, power consump- tion is a firstMAximum Multicore POwer (MAMPO) - An Automatic Multithreaded Synthetic Power Virus Generation worst case power consumption for a com- puter system is a significant design parameter and it is a very

  3. Greenhouse gas and air pollutant emission reduction potentials of renewable energy - case studies on photovoltaic and wind power introduction considering interactions among technologies in Taiwan

    SciTech Connect (OSTI)

    Yu-Ming Kuo; Yasuhiro Fukushima

    2009-03-15

    To achieve higher energy security and lower emission of greenhouse gases (GHGs) and pollutants, the development of renewable energy has attracted much attention in Taiwan. In addition to its contribution to the enhancement of reliable indigenous resources, the introduction of renewable energy such as photovoltaic (PV) and wind power systems reduces the emission of GHGs and air pollutants by substituting a part of the carbon- and pollutant-intensive power with power generated by methods that are cleaner and less carbon-intensive. To evaluate the reduction potentials, consequential changes in the operation of different types of existing power plants have to be taken into account. In this study, a linear mathematical programming model is constructed to simulate a power mix for a given power demand in a power market sharing a cost-minimization objective. By applying the model, the emission reduction potentials of capacity extension case studies, including the enhancement of PV and wind power introduction at different scales, were assessed. In particular, the consequences of power mix changes in carbon dioxide, nitrogen oxides, sulfur oxides, and particulates were discussed. Seasonally varying power demand levels, solar irradiation, and wind strength were taken into account. In this study, we have found that the synergetic reduction of carbon dioxide emission induced by PV and wind power introduction occurs under a certain level of additional installed capacity. Investigation of a greater variety of case studies on scenario development with emerging power sources becomes possible by applying the model developed in this study. 15 refs., 8 figs., 11 tabs.

  4. In order to reduce emissions and enhance energy security, renewable power sources are being introduced proactively. As the fraction of

    E-Print Network [OSTI]

    Firestone, Jeremy

    as a distributed energy resource as well as an energy storage for propulsion. The authors have built a plug to the power grid to provide higher efficiency, better energy security, and lower greenhouse gas emissionsAbstract In order to reduce emissions and enhance energy security, renewable power sources

  5. Photovoltaic Power Generation in Flagstaff | GE Global Research

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

    Photovoltaic Power Generation in Flagstaff Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click...

  6. A thermally efficient micro-reactor for thermophotovoltaic power generation

    E-Print Network [OSTI]

    Nielsen, Ole Mattis, 1977-

    2006-01-01

    Hydrocarbon fuels exhibit very high energy densities, and micro-generators converting the stored chemical energy into electrical power are interesting alternatives to batteries in certain applications. The increasing demands ...

  7. Power Generation From Waste Heat Using Organic Rankine Cycle Systems 

    E-Print Network [OSTI]

    Prasad, A.

    1980-01-01

    Many efforts are currently being pursued to develop and implement new energy technologies aimed at meeting our national energy goals The use of organic Rankine cycle engines to generate power from waste heat provides a near term means to greatly...

  8. Risk Framework for the Next Generation Nuclear Power Plant Construction 

    E-Print Network [OSTI]

    Yeon, Jaeheum 1981-

    2012-12-11

    sector projects, and recently elevated to Best Practice status. However, its current format is inadequate to address the unique challenges of constructing the next generation of nuclear power plants (NPP). To understand and determine the risks...

  9. Reliability Improvement Programs in Steam Distribution and Power Generation Systems 

    E-Print Network [OSTI]

    Petto, S.

    1987-01-01

    can be found in power generation. steam distribution, and in all types of durable and non-durable Industrial productions. I 300 " 0 " 200 C " ? ? ~ 'DO ?~ 50 ' .. '7. '70 '75 '50 '.2 The cost to maintain steam systems. namely...

  10. North Brawley Power Plant Placed in Service; Currently Generating...

    Open Energy Info (EERE)

    North Brawley Power Plant Placed in Service; Currently Generating 17 MW; Additional Operations Update Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site:...

  11. Sandia Energy - Electric Power Generation and Water Use Data

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

    Electric Power Generation and Water Use Data Home Climate & Earth Systems WaterEnergy Nexus Decision Models for Integrating EnergyWater Energy and Water in the Western and Texas...

  12. Improving heat capture for power generation in coal gasification plants

    E-Print Network [OSTI]

    Botros, Barbara Brenda

    2011-01-01

    Improving the steam cycle design to maximize power generation is demonstrated using pinch analysis targeting techniques. Previous work models the steam pressure level in composite curves based on its saturation temperature ...

  13. Integration of decentralized generators with the electric power grid

    E-Print Network [OSTI]

    Finger, Susan

    1981-01-01

    This report develops a new methodology for studying the economic interaction of customer-owned electrical generators with the central electric power grid. The purpose of the report is to study the reciprocal effects of the ...

  14. Navajo Generating Station and Clean-Energy Alternatives: Options for Renewables

    SciTech Connect (OSTI)

    Hurlbut, D. J.; Haase, S.; Turchi, C. S.; Burman, K.

    2012-06-01

    In January 2012, the National Renewable Energy Laboratory delivered to the Department of the Interior the first part of a study on Navajo Generating Station (Navajo GS) and the likely impacts of BART compliance options. That document establishes a comprehensive baseline for the analysis of clean energy alternatives, and their ability to achieve benefits similar to those that Navajo GS currently provides. This analysis is a supplement to NREL's January 2012 study. It provides a high level examination of several clean energy alternatives, based on the previous analysis. Each has particular characteristics affecting its relevance as an alternative to Navajo GS. It is assumed that the development of any alternative resource (or portfolio of resources) to replace all or a portion of Navajo GS would occur at the end of a staged transition plan designed to reduce economic disruption. We assume that replacing the federal government's 24.3% share of Navajo GS would be a cooperative responsibility of both the U.S. Bureau of Reclamation (USBR) and the Central Arizona Water Conservation District (CAWCD).

  15. Power Generating Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio1975) |Texas:Pottawattamie County,River,Generating Inc Jump to:

  16. Previous Wind Power Announcements (generation/wind)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgram Guidelines ThisHENPDepartment'sPrestonPreviousMembers | HomeWind

  17. FACTSHEET: Next Generation Power Electronics Manufacturing Innovation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtrans - Permeation Measurement2 0 th CMto Help

  18. WIMP matter power spectra and small scale power generation

    E-Print Network [OSTI]

    C. Boehm; H. Mathis; J. Devriendt; J. Silk

    2003-09-24

    Dark Matter (DM) is generally assumed to be massive, cold and collisionless from the structure formation point of view. A more correct statement however is that DM indeed experiences collisional damping, but on a scale which is supposed to be too small to be relevant for structure formation. The aim of this paper is to present a Cold (although ``collisional'') Dark Matter particle whose matter power spectrum is damped and see whether it is distinguishable from standard candidates. To achieve this purpose, we calculate the collisional damping and free-streaming scales of neutralinos and non conventional candidates (say light particles heavier than ~1 MeV but lighter than O(10) GeV). The latter can be considered as Cold Dark Matter (CDM) particles in the sense that they become non relativistic before their thermal decoupling epoch. Unlike neutralinos, however, their linear matter power spectrum can be damped on scales of ~ 10^3 Msol due to their interactions. Since these scales are of cosmological interest for structure formation, we perform a series of numerical simulations to obtain the corresponding non linear matter power spectra P(k)_{nl} at the present epoch. We show that because of small scale regeneration, they all resemble each other at low redshifts, i.e. become very similar to a typical CDM matter power spectrum on all but the smallest scales. Therefore, even if lensing measurements at redshift below unity were to yield a P(k)_{nl} consistent with CDM models, this would not constitute a sufficiently robust evidence in favour of the neutralino to rule out alternative DM candidates.

  19. 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.

  20. Thermoelectric Power Generation Allison Duh and Joel Dungan

    E-Print Network [OSTI]

    Lavaei, Javad

    Thermoelectric Power Generation Allison Duh and Joel Dungan May 15, 2013 #12;Introduction A thermoelectric generator (TEG) is a device that converts heat energy directly into electrical energy. Thermoelectric systems capitalize on semiconductor charge carriers excited by a temperature difference to convert

  1. Optimal distributed power generation under network load constraints

    E-Print Network [OSTI]

    Utrecht, Universiteit

    , small wind turbine or central heating power units) can be inserted into any transmission line, mainly because of the development of novel components for decentral power generation (solar panels, small wind turbines and heat pumps). This gives rise to the question how many units of each type (solar panel

  2. Dynamic equivalencing of distribution network with embedded generation 

    E-Print Network [OSTI]

    Feng, Xiaodan Selina

    2012-06-25

    Renewable energy generation will play an important role in solving the climate change problem. With renewable electricity generation increasing, there will be some significant changes in electric power systems, ...

  3. Renewables and air quality

    SciTech Connect (OSTI)

    Wooley, D.R.

    2000-08-01

    The US heavy reliance on fossil fuels is a central obstacle to improving air quality and preventing catastrophic climate change. To solve this problem will require a combination of financial incentives and market rules that strongly encourage development of renewable energy resources to meet electric power demand. One promising policy option is to allow renewable energy resources to directly participate in air pollution emission trading mechanisms. Currently, the clean air benefits of renewable energy generally go unrecognized by regulators, under-appreciated by consumers and uncompensated by markets. Renewable energy is a key clean air alternative to conventional electricity generation, and the development of renewables could be stimulated by changes to the Clean Air Act's emissions trading programs. As Congress revisits clean air issues over the next several years, renewable energy representatives could push for statutory changes that reward the renewable energy industry for the air quality benefits it provides. By also becoming involved in key US Environmental Protection Agency (EPA) and state rule-making cases, the renewables industry could influence the structure of emissions trading programs and strengthen one of the most persuasive arguments for wind, solar and biomass energy development.

  4. Renewable Energy RFPs | OpenEI Community

    Open Energy Info (EERE)

    Posts by term > Renewable Energy RFPs Content Group Activity By term Q & A Feeds Term: Coal Fired Power Generation Market Trends Type Term Title Author Replies Last Post sort icon...

  5. Renewable Energy RFPs | OpenEI Community

    Open Energy Info (EERE)

    Posts by term > Renewable Energy RFPs Content Group Activity By term Q & A Feeds Term: Coal Fired Power Generation Market Type Term Title Author Replies Last Post sort icon Blog...

  6. RESEARCH RESULTS FORUM FOR RENEWABLE ENERGY TECHNOLOGY AND RESOURCE ASSESSMENTS

    E-Print Network [OSTI]

    California at Davis, University of

    Renewable Energy Center Technical Assessment of Small Hydro Power Technologies #12;California Renewable Energy Center Technical Assessment of In-conduit Small Hydro Power Technologies The goal of this study is to investigate and assess available small hydro power generation technologies and associated operating

  7. Next generation geothermal power plants. Draft final report

    SciTech Connect (OSTI)

    Brugman, John; Hattar, John; Nichols, Kenneth; Esaki, Yuri

    1994-12-01

    The goal of this project is to develop concepts for the next generation geothermal power plant(s) (NGGPP). This plant, compared to existing plants, will generate power for a lower levelized cost and will be more competitive with fossil fuel fired power plants. The NGGPP will utilize geothermal resources efficiently and will be equipped with contingencies to mitigate the risk of reservoir performance. The NGGPP design will attempt to minimize emission of pollutants and consumption of surface water and/or geothermal fluids for cooling service.

  8. Communication Systems for Grid Integration of Renewable Energy Resources

    E-Print Network [OSTI]

    Yu, F Richard; Xiao, Weidong; Choudhury, Paul

    2011-01-01

    There is growing interest in renewable energy around the world. Since most renewable sources are intermittent in nature, it is a challenging task to integrate renewable energy resources into the power grid infrastructure. In this grid integration, communication systems are crucial technologies, which enable the accommodation of distributed renewable energy generation and play extremely important role in monitoring, operating, and protecting both renewable energy generators and power systems. In this paper, we review some communication technologies available for grid integration of renewable energy resources. Then, we present the communication systems used in a real renewable energy project, Bear Mountain Wind Farm (BMW) in British Columbia, Canada. In addition, we present the communication systems used in Photovoltaic Power Systems (PPS). Finally, we outline some research challenges and possible solutions about the communication systems for grid integration of renewable energy resources.

  9. Barriers to the adoption of renewable and energy-efficient technologies in the Vietnamese power sector

    E-Print Network [OSTI]

    Boyer, Edmond

    -01-07 Abstract: This paper examines the major barriers to the deployment of geothermal, small hydro and advanced penetration of small hydro generation technologies are insufficient capital, a lack of domestic suppliers's power sector. The technologies under consideration in this paper are small hydro and geothermal energy

  10. Retail Beamed Power for a Micro Renewable Energy Architecture: Survey Narayanan Komerath, Girish Chowdhary

    E-Print Network [OSTI]

    dispersed demand for small amounts of power, in developing parts of the world. Rural India is a prime urban. In the USA, transmission and distribution losses dropped below 6% in 2001, rising [4] to nearly 8 are reported to have built a rudimentary wind turbine and generator out of scrap metal parts. They claimed

  11. Options for Control of Reactive Power by Distributed Photovoltaic Generators

    E-Print Network [OSTI]

    Sulc, Petr; Backhaus, Scott; Chertkov, Michael

    2010-01-01

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

  12. Effective Renewable Energy Policy: Leave It to the States?

    E-Print Network [OSTI]

    Weissman, Steven

    2011-01-01

    count large-scale hydroelectric power as renewable for theas large-scale hydroelectric, nuclear power, and natural gaspower is generated with solar heat, photovoltaics, wind, geothermal heat, small hydroelectric

  13. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-10-01

    Many countries--reflecting very different geographies, markets, and power systems--are successfully managing high levels of variable renewable energy (RE) on the grid. Australia (South Australia), Denmark, Germany, Ireland, Spain, and the United States (Colorado and Texas), for example, have effectively integrated variable RE utilizing diverse approaches. Analysis of the results from these case studies reveals a wide range of mechanisms that can be used to accommodate high penetrations of variable RE (e.g., from new market designs to centralized planning). Nevertheless, the myriad approaches collectively suggest that governments can best enable variable RE grid integration by implementing best practices in five areas of intervention: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations.

  14. Proposal to negotiate the renewal of a blanket purchase contract for the supply of high-power RF grid-tubes for the CERN accelerators

    E-Print Network [OSTI]

    2014-01-01

    Proposal to negotiate the renewal of a blanket purchase contract for the supply of high-power RF grid-tubes for the CERN accelerators

  15. Investigation into the potential of energy storage to tackle intermittency in renewable energy generation 

    E-Print Network [OSTI]

    Barbour, Edward

    2013-11-28

    Renewable Energy is by nature intermittent and matching the supply of energy to specific time dependent demand poses huge challenges. Energy storage is a useful tool in handling this temporal disparity, although except ...

  16. ePOWER Seminar AC solar cells: A new breed of PV power generation

    E-Print Network [OSTI]

    Fletcher, Robin

    % and would thus encourage a greater adoption of multi-junction solar cells. This modular solution is highly of photovoltaics. Presently he is involved in the cell-level power converter design for single junction and multi-junction ePOWER Seminar AC solar cells: A new breed of PV power generation Professor Faisal Khan Assistant

  17. EFFECT OF PITCH CONTROL AND POWER CONDITIONING ON POWER QUALITY OF VARIABLE SPEED WIND TURBINE GENERATORS

    E-Print Network [OSTI]

    EFFECT OF PITCH CONTROL AND POWER CONDITIONING ON POWER QUALITY OF VARIABLE SPEED WIND TURBINE), Curtin University of Technology, WA Abstract: Variable speed wind turbine generators provide the opportunity to capture more power than fixed speed turbines. However the variable speed machine output can

  18. Renewable Electricity: How Do You Know You Have It?; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-08-01

    When electricity is generated - either from a renewable or non-renewable power plant - the electrons added to the grid are indistinguishable. So, on what basis can a consumer of electricity claim to be using renewables? In the United States, renewable energy certificates (RECs) were developed as states passed renewable portfolio standards (RPSs) and were requiring fuel mix disclosure labels. RECs are also used in the voluntary market, where customers are buying renewables to meet sustainability goals. The concept of RECs is used most widely in the United States, but international markets also have tradable renewable electricity certificates. This fact sheet reviews how to ensure that RECs are not double-counted, roles of electricity regulators, renewable generators and purchasers. It concludes with a discussion of the international use of RECs.

  19. Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation

    E-Print Network [OSTI]

    Eto, Joseph H.

    2011-01-01

    for Competitive Renewable Energy Zones in Texas. December.February 9. National Renewable Energy Laboratory (NREL).through the Competitive Renewable Energy Zone process. 12.

  20. Customer adoption of small-scale on-site power generation

    E-Print Network [OSTI]

    Siddiqui, Afzal S.; Marnay, Chris; Hamachi, Kristina S.; Rubio, F. Javier

    2001-01-01

    of Small-Scale On-Site Power Generation Afzal S. Siddiqui,technologies will tilt power generation economics in favourquality. This pattern of power generation and consumption is

  1. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    for wind and other renewable energy technologies, or for “energy market value than wind and other solar technologies.energy additions, wind has thus far consistently been the dominant renewable technology

  2. China rationalizes its renewable energy policy

    SciTech Connect (OSTI)

    Su, Jack H.; Hui, Simone S.; Tsen, Kevin H.

    2010-04-15

    China's over-reliance on thermal power generation, especially coal-fired power stations, is well-documented. While nuclear power continues as an option to coal, China's strides in renewable energy are unprecedented. Recent amendments to the Renewable Energy Law, first promulgated in 2006, attempt to rationalize the regulatory regime governing wind, solar, hydropower and biomass projects in China, currently fraught with inadequate interconnection and tariff shock issues. (author)

  3. SiC Power Module

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

    and hybrid vehicles), convert energy from renewable sources (i.e., solar arrays or wind generators), and provide power for a wide variety of electronics and electronic systems...

  4. Fiber optic signal amplifier using thermoelectric power generation

    DOE Patents [OSTI]

    Hart, M.M.

    1993-01-01

    A remote fiber optic signal amplifier for use as a repeater/amplifier, such as in transoceanic communication, powered by a Pu{sub 238} or Sr{sub 90} thermoelectric generator. The amplifier comprises a unit with connections on the receiving and sending sides of the communications system, and an erbium-doped fiber amplifier connecting each sending fiber to each receiving fiber. The thermoelectric generator, preferably a Pu{sub 238} or Sr{sub 90} thermoelectric generator delivers power to the amplifiers through a regulator. The heat exchange surfaces of the thermoelectric generator are made of material resistant to corrosion and biological growth and are directly exposed to the outside, such as the ocean water in transoceanic communications.

  5. Fiber optic signal amplifier using thermoelectric power generation

    DOE Patents [OSTI]

    Hart, M.M.

    1995-04-18

    A remote fiber optic signal amplifier for use as a repeater/amplifier, such as in transoceanic communications, powered by a Pu{sub 238} or Sr{sub 90} thermoelectric generator. The amplifier comprises a unit with connections on the receiving and sending sides of the communications system, and an erbium-doped fiber amplifier connecting each sending fiber to each receiving fiber. The thermoelectric generator, preferably a Pu{sub 238} or Sr{sub 90} thermoelectric generator delivers power to the amplifiers through a regulator. The heat exchange surfaces of the thermoelectric generator are made of materials resistant to corrosion and biological growth and are directly exposed to the outside, such as the ocean water in transoceanic communications. 2 figs.

  6. Fiber optic signal amplifier using thermoelectric power generation

    DOE Patents [OSTI]

    Hart, Mark M. (Aiken, SC)

    1995-01-01

    A remote fiber optic signal amplifier for use as a repeater/amplifier, such as in transoceanic communications, powered by a Pu.sub.238 or Sr.sub.90 thermoelectric generator. The amplifier comprises a unit with connections on the receiving and sending sides of the communications system, and an erbium-doped fiber amplifier connecting each sending fiber to each receiving fiber. The thermoelectric generator, preferably a Pu.sub.238 or Sr.sub.90 thermoelectric generator delivers power to the amplifiers through a regulator. The heat exchange surfaces of the thermoelectric generator are made of materials resistant to corrosion and biological growth and are directly exposed to the outside, such as the ocean water in transoceanic communications.

  7. New geothermal heat extraction process to deliver clean power generation

    ScienceCinema (OSTI)

    Pete McGrail

    2012-12-31

    A new method for capturing significantly more heat from low-temperature geothermal resources holds promise for generating virtually pollution-free electrical energy. Scientists at the Department of Energys Pacific Northwest National Laboratory will determine if their innovative approach can safely and economically extract and convert heat from vast untapped geothermal resources. The goal is to enable power generation from low-temperature geothermal resources at an economical cost. In addition to being a clean energy source without any greenhouse gas emissions, geothermal is also a steady and dependable source of power.

  8. Power System Modeling of 20percent Wind-Generated Electricity by 2030

    E-Print Network [OSTI]

    Hand, Maureen

    2008-01-01

    fueled power generation with wind energy reduces waterand water savings. Index Terms—power system modeling, wind

  9. Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation

    SciTech Connect (OSTI)

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

    2004-09-30

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

  10. Fuel cycle comparison of distributed power generation technologies.

    SciTech Connect (OSTI)

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

    2008-12-08

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

  11. Renewable Mongolia

    E-Print Network [OSTI]

    Hacker, Randi; Tsutsui, William

    2005-12-07

    Broadcast Transcript: As China's economy booms, its demand for energy grows. With oil prices up and coal-fired power plants choking Chinese cities and people, the government is aggressively developing renewable energy sources, particularly wind...

  12. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    DeMeo, E.

    2012-08-01

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented at Wind Powering America States Summit. The Summit, which follows the American Wind Energy Association's (AWEA's) annual WINDPOWER Conference and Exhibition, provides state Wind Working Groups, state energy officials, U.S. Energy Department and national laboratory representatives, and professional and institutional partners an opportunity to review successes, opportunities, and challenges for wind energy and plan future collaboration.

  13. Sustainable Power Generation in Microbial Fuel Cells Using

    E-Print Network [OSTI]

    Tullos, Desiree

    Sustainable Power Generation in Microbial Fuel Cells Using Bicarbonate Buffer and Proton Transfer applications, especially for wastewater treatment. Introduction Microbial fuel cell (MFC) technology has drawn of electrodes (6­9), (iii) selection and treatment of membranes (10­12), and (iv) optimization of the MFC design

  14. Clean coal technologies in electric power generation: a brief overview

    SciTech Connect (OSTI)

    Janos Beer; Karen Obenshain [Massachusetts Institute of Technology (MIT), MA (United States)

    2006-07-15

    The paper talks about the future clean coal technologies in electric power generation, including pulverized coal (e.g., advanced supercritical and ultra-supercritical cycles and fluidized-bed combustion), integrated gasification combined cycle (IGCC), and CO{sub 2} capture technologies. 6 refs., 2 tabs.

  15. DOWNHOLE POWER GENERATION AND WIRELESS COMMUNICATIONS FOR INTELLIGENT COMPLETIONS APPLICATIONS

    SciTech Connect (OSTI)

    Paul Tubel

    2003-03-24

    The first quarter of the Downhole Power Generation and Wireless Communications for Intelligent Completions Applications was characterized by the evaluation and determination of the specifications required for the development of the system for permanent applications in wellbores to the optimization of hydrocarbon production. The system will monitor and transmit in real time pressure and temperature information from downhole using the production tubing as the medium for the transmission of the acoustic waves carrying digital information. The most common casing and tubing sizes were determined by interfacing with the major oil companies to obtain information related to their wells. The conceptual design was created for both the wireless gauge section of the tool as well as the power generation module. All hardware for the wireless gauge will be placed in an atmospheric pressure chamber located on the outside of a production tubing with 11.4 centimeter (4-1/2 inch) diameter. This mounting technique will reduce cost as well as the diameter and length of the tool and increase the reliability of the system. The power generator will use piezoelectric wafers to generate electricity based on the flow of hydrocarbons through an area in the wellbore where the tool will be deployed. The goal of the project is to create 1 Watt of power continuously.

  16. Electrical power systems (Guatemala). Electric power generation and distribution equipment, March 1991. Export trade information

    SciTech Connect (OSTI)

    Not Available

    1991-03-01

    The article analyzes the electrical power generation and distribution equipment market in Guatemala and contains the following subtopics: market assessment, competitive situation, market access, trade promotion opportunities, best sales prospects, and statistical data. The total market demand of electrical power generation and distribution equipment and materials in Guatemala increased from US $19.0 million in 1987 to $24.8 million in 1988 (30.5 percent).

  17. Optimal selection of on-site generation with combined heat and power applications

    E-Print Network [OSTI]

    Siddiqui, Afzal S.; Marnay, Chris; Bailey, Owen; Hamachi LaCommare, Kristina

    2004-01-01

    Modeling with Combined Heat and Power Applications. LBNL-Tax on Microgrid Combined Heat and Power Adoption. JournalGeneration with Combined Heat and Power Applications Afzal

  18. DOWNHOLE POWER GENERATION AND WIRELESS COMMUNICATIONS FOR INTELLIGENT COMPLETIONS APPLICATIONS

    SciTech Connect (OSTI)

    Paul Tubel

    2003-07-05

    The third quarter of the project was dedicated to creating the detailed design for the manufacturing of the mechanical system for wireless communications and the power generation module. Another emphasis for the quarter was the development of the surface system and acoustic detector for the downhole tool for 2 way communications. The tasks accomplished during this report period were: (1) All detailed drawings for manufacturing of the wireless communications gauge and power generator were completed and the drawings were forward to a machine shop for manufacturing. (2) The power generator was incorporated to the mandrel of the wireless gauge reducing the length of the tool by 25% and manufacturing cost by about 35%. (3) The new piezoelectric acoustic generator was manufactured successfully and it was delivered during this quarter. The assembly provides a new technique to manufacture large diameter piezoelectric based acoustic generators. (4) The acoustic two-way communications development progressed significantly. The real time firmware for the surface system was developed and the processor was able to detect and process the data frame transmitted from downhole. The analog section of the tool was also developed and it is being tested for filtering capabilities and signal detection and amplification. (5) The new transformer to drive the piezoelectric wafer assembly was designed and manufactured. The transformer has been received and it will go through testing and evaluation during the next quarter.

  19. West European nuclear power generation research and development

    SciTech Connect (OSTI)

    Turinsky, P.J.; Baron, S.; Burch, W.D.; Corradini, M.L.; Lucas, G.E.; Matthews, R.B.; Uhrig, R.E.

    1991-09-01

    This report assesses the status of West European research and development (R&D) in support of nuclear power generation. The focus is on light-water reactors (LWRs), as they will likely be the only concept commerically implemented within the next decade. To a laser degree, alternative concepts such as the high-temperature gas cooled reactor and the liquid-metal reactor (LMR) are also assessed. To bound the study, only the fuel cycle stages of fuel fabrication, power generation, and fuel reprocessing are considered. Under the topic of power generation, the subtopics of core reactor physics, materials, instrumentation and control systems, nuclear power safety, and power plant fabrication and construction are addressed. The front-end fuel cycle stages of mining and milling, conversion and enrichment, and the back-end fuel cycle stages of waste conditioning and disposal and not considered. Most assessments for light-water reactor R&D are completed on a country-by-country basis since there is limited cooperation among the West European countries due to the commercial relevance of R&D in this area.

  20. West European nuclear power generation research and development

    SciTech Connect (OSTI)

    Turinsky, P.J.; Baron, S.; Burch, W.D.; Corradini, M.L.; Lucas, G.E.; Matthews, R.B.; Uhrig, R.E.

    1991-09-01

    This report assesses the status of West European research and development (R D) in support of nuclear power generation. The focus is on light-water reactors (LWRs), as they will likely be the only concept commerically implemented within the next decade. To a laser degree, alternative concepts such as the high-temperature gas cooled reactor and the liquid-metal reactor (LMR) are also assessed. To bound the study, only the fuel cycle stages of fuel fabrication, power generation, and fuel reprocessing are considered. Under the topic of power generation, the subtopics of core reactor physics, materials, instrumentation and control systems, nuclear power safety, and power plant fabrication and construction are addressed. The front-end fuel cycle stages of mining and milling, conversion and enrichment, and the back-end fuel cycle stages of waste conditioning and disposal and not considered. Most assessments for light-water reactor R D are completed on a country-by-country basis since there is limited cooperation among the West European countries due to the commercial relevance of R D in this area.

  1. Microbial Fuel Cell Coupling: Clean, renewable energy generated from wastewater amongst other potential uses

    E-Print Network [OSTI]

    Reynolds, Mark

    2014-01-01

    energy generated from wastewater amongst other potential uses Mark Reynolds May 20, 2014 Abstract Microbial fuel

  2. Low-Power Maximum Power Point Tracker with Digital Control for Thermophotovoltaic Generators

    E-Print Network [OSTI]

    Perreault, Dave

    energy conversion process. photons with energies above the PV diode bandgap can generate electron at more than two orders of magnitude higher energy densities than solar PV (as shown in Figure 1-power portable thermophotovotaic (TPV) generator system. TPV system is based on a silicon micro-reactor design

  3. Field Fabrication of Solar-Thermal Powered Steam Turbines for Generation of Mechanical Power

    E-Print Network [OSTI]

    investigate a solar thermal steamdriven turbine system and build and evaluate several versions in fieldField Fabrication of Solar-Thermal Powered Steam Turbines for Generation of Mechanical Power by Amy and repeatability necessary for regular people to design, manufacture, and install a system to convert solar

  4. DOE Webinar: EERE'S Fiscal Year 2016 Budget Proposal- Renewable Power Sector

    Broader source: Energy.gov [DOE]

    The Energy Department's Office of Energy Efficiency and Renewable Energy (EERE) is hosting a webinar series featuring its Deputy Assistant Secretaries and the Technology Office Directors as they...

  5. DOE Webinar: EERE's Fiscal Year 2016 Budget Proposal- Renewable Power Sector

    Broader source: Energy.gov [DOE]

    The Energy Department's Office of Energy Efficiency and Renewable Energy (EERE) is hosting a webinar series featuring its Deputy Assistant Secretaries and the Technology Office Directors as they...

  6. RTP Green Fuel: A Proven Path to Renewable Heat and Power

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

    Envergent Technologies 2009 Envergent Technologies 2009 Renewable Fuel Oil - A Commercial Perspective Steve Lupton Technical Information Exchange on Pyrolysis Oil: Potential for...

  7. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    Hitt (Solar Alliance), Charlie Kubert (Clean Energy Group),Alliance. Acknowledgements This work was supported by: the Office of Energy Efficiency and Renewable Energy (Solar

  8. FEMP Offers Training on Federal On-Site Renewable Power Purchase...

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

    and restrictions Consider the technical and site feasibility for an on-site renewable energy project Establish a multidisciplinary team to successfully implement the PPA...

  9. Renewable Electricity Futures:  Operational Analysis of the Western Interconnection at Very High Renewable Penetrations

    Broader source: Energy.gov [DOE]

    The goal of this work was to perform a detailed, sub-hourly analysis of very high penetration scenarios for a single interconnection (the Western Interconnection). The scenarios analyzed for this study included a variety of generation infrastructure buildouts and power system operational assumptions, with three different portfolios of renewable generators. The High scenario had approximately 82% renewable generation after curtailment, which included 41% of its generation coming from variable generation (VG) sources like wind and solar photovoltaics (PV). The remaining renewable generation came from hydropower, geothermal, and concentrating solar power (CSP). The Higher Baseload scenario adds CSP and geothermal to the High scenario to make 88% renewable generation. This study also included a Higher VG scenario with added wind and solar PV generation to get to 86% renewable generation. Both Higher scenarios added the same amount of possible generation, but the Higher VG scenario showed more curtailment from the incremental generation, leading to lower penetration levels after curtailment. The primary conclusion of this study is that sub-hourly operation of the grid is possible with renewable generation levels between 80% and 90%. Dynamic studies will need to be done to understand any impacts on reliability during contingencies and transient events.

  10. Remote-site power generation opportunities for Alaska

    SciTech Connect (OSTI)

    Jones, M.L.

    1997-03-01

    The Energy and Environmental Research Center (EERC) has been working with the Federal Energy Technology Center in Morgantown, West Virginia, to assess options for small, low-cost, environmental acceptable power generation for application in remote areas of Alaska. The goal of this activity was to reduce the use of fuel in Alaskan villages by developing small, low-cost power generation applications. Because of the abundance of high-quality coal throughout Alaska, emphasis was placed on clean coal applications, but other energy sources, including geothermal, wind, hydro, and coalbed methane, were also considered. The use of indigenous energy sources would provide cheaper cleaner power, reduce the need for PCE (Power Cost Equalization program) subsidies, increase self-sufficiency, and retain hard currency in the state while at the same time creating jobs in the region. The introduction of economical, small power generation systems into Alaska by US equipment suppliers and technology developers aided by the EERC would create the opportunities for these companies to learn how to engineer, package, transport, finance, and operate small systems in remote locations. All of this experience would put the US developers and equipment supply companies in an excellent position to export similar types of small power systems to rural areas or developing countries. Thus activities in this task that relate to determining the generic suitability of these technologies for other countries can increase US competitiveness and help US companies sell these technologies in foreign countries, increasing the number of US jobs. The bulk of this report is contained in the two appendices: Small alternative power workshop, topical report and Global market assessment of coalbed methane, fluidized-bed combustion, and coal-fired diesel technologies in remote applications.

  11. 618 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 19, NO. 3, MAY 2004 Automotive Power Generation and Control

    E-Print Network [OSTI]

    Perreault, Dave

    618 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 19, NO. 3, MAY 2004 Automotive Power Generation developments in the application of power electronics to automotive power gener- ation and control. A new load be implemented within the existing manufacturing infrastructure. Index Terms--Automotive power generation, boost

  12. A Structure Exploiting Algorithm for Approximate Robust Optimal Control with Application to Power Generating Kites

    E-Print Network [OSTI]

    slowly driving the generator while flying fast in a crosswind direction. To achieve a periodic power

  13. Experimental results of a transmission line compression circuit for low impedance pulse power generation

    E-Print Network [OSTI]

    Nassini, V

    1996-01-01

    Experimental results of a transmission line compression circuit for low impedance pulse power generation

  14. US Renewable Futures in the GCAM

    SciTech Connect (OSTI)

    Smith, S.J.; Mizrahi, A.H.; Karas, J.F.; Nathan, M.

    2011-10-01

    This report examines renewable energy deployment in the United States using a version of the Global Change Assessment Model (GCAM) with a detailed representation of renewables; the GCAM-RE. Electricity generation was modeled in four generation segments and 12-subregions. This level of regional and sector detail allows a more explicit representation of renewable energy generation. Wind, solar thermal power, and central solar PV plants are implemented in explicit resource classes with new intermittency parameterizations appropriate for each technology. A scenario analysis examines a range of assumptions for technology characteristics, climate policy, and long distance transmission.

  15. Options for Control of Reactive Power by Distributed Photovoltaic Generators

    E-Print Network [OSTI]

    Petr Sulc; Konstantin Turitsyn; Scott Backhaus; Michael Chertkov

    2010-08-04

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

  16. Workload Shaping to Mitigate Variability in Renewable Power Use by Data Centers

    E-Print Network [OSTI]

    Gupta, Rajesh

    costs. These include integration of renewable energy [2], [3], improved cooling [4], [5] and improved for flexibility in work- load execution to meet a given SLA. Balanced against the nec- essary cost of energy storage costs for non-renewable energy savings. In this paper, we present analysis of the effectiveness

  17. The effects of energy storage properties and forecast accuracy on mitigating variability in wind power generation

    E-Print Network [OSTI]

    Jaworsky, Christina A

    2013-01-01

    Electricity generation from wind power is increasing worldwide. Wind power can offset traditional fossil fuel generators which is beneficial to the environment. However, wind generation is unpredictable. Wind speeds have ...

  18. High Power Millimeter-Wave Signal Generation in Advanced SiGe and CMOS Process

    E-Print Network [OSTI]

    Lin, Hsin-Chang

    2015-01-01

    1.3 Millimeter-Wave Signal Generation 1.4 ThesisPower Millimeter-Wave Signal Generation in Advanced SiGe andPower Millimeter-Wave Signal Generation in Advanced SiGe and

  19. Coal gasification for power generation. 2nd ed.

    SciTech Connect (OSTI)

    NONE

    2006-10-15

    The report gives an overview of the opportunities for coal gasification in the power generation industry. It provides a concise look at the challenges faced by coal-fired generation, the ability of coal gasification to address these challenges, and the current state of IGCC power generation. Topics covered in the report include: An overview of coal generation including its history, the current market environment, and the status of coal gasification; A description of gasification technology including processes and systems; An analysis of the key business factors that are driving increased interest in coal gasification; An analysis of the barriers that are hindering the implementation of coal gasification projects; A discussion of Integrated Gasification Combined Cycle (IGCC) technology; An evaluation of IGCC versus other generation technologies; A discussion of IGCC project development options; A discussion of the key government initiatives supporting IGCC development; Profiles of the key gasification technology companies participating in the IGCC market; and A description of existing and planned coal IGCC projects.

  20. Renewable Electricity Futures Study Volume 1: Exploration of High-Penetration Renewable Electrcity Futures

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Renewable Electricity Futures Study (RE Futures) is an initial investigation of the extent to which renewable energy supply can meet the electricity demands of the contiguous United States1 over the next several decades. This study includes geographic and electric system operation resolution that is unprecedented for long-term studies of the U.S. electric sector. The analysis examines the implications and challenges of renewable electricity generation levels—from 30% up to 90%, with a focus on 80%, of all U.S. electricity generation from renewable technologies—in 2050. The study focuses on some key technical implications of this environment, exploring whether the U.S. power system can supply electricity to meet customer demand with high levels of renewable electricity, including variable wind and solar generation. The study also begins to address the potential economic, environmental, and social implications of deploying and integrating high levels of renewable electricity in the United States.

  1. Wind Turbine Generator System Power Performance Test Report for the Entegrity EW50 Wind Turbine

    SciTech Connect (OSTI)

    Smith, J.; Huskey, A.; Jager, D.; Hur, J.

    2011-05-01

    Report on the results of the power performance test that the National Renewable Energy Laboratory (NREL) conducted on Entegrity Wind System Inc.'s EW50 small wind turbine.

  2. 2014 Renewable Energy Data Book

    Broader source: Energy.gov [DOE]

    The Renewable Energy Data Book for 2014 provides facts and figures on energy and electricity use, renewable electricity in the United States, global renewable energy development, wind power, solar power, geothermal power, biopower, hydropower, marine and hydrokinetic power, hydrogen, renewable fuels, and clean energy investment.

  3. 2014 Renewable Energy Data Book

    SciTech Connect (OSTI)

    Beiter, Philipp

    2015-11-01

    The Renewable Energy Data Book for 2014 provides facts and figures on energy and electricity use, renewable electricity in the United States, global renewable energy development, wind power, solar power, geothermal power, biopower, hydropower, marine and hydrokinetic power, hydrogen, renewable fuels, and clean energy investment.

  4. 2014 Renewable Energy Data Book

    SciTech Connect (OSTI)

    Beiter, Philipp

    2015-11-15

    The Renewable Energy Data Book for 2014 provides facts and figures on energy and electricity use, renewable electricity in the United States, global renewable energy development, wind power, solar power, geothermal power, biopower, hydropower, marine and hydrokinetic power, hydrogen, renewable fuels, and clean energy investment.

  5. Nanodevices for generating power from molecules and batteryless sensing

    DOE Patents [OSTI]

    Wang, Yinmin; Wang, Xianying; Hamza, Alex V.

    2014-07-15

    A nanoconverter or nanosensor is disclosed capable of directly generating electricity through physisorption interactions with molecules that are dipole containing organic species in a molecule interaction zone. High surface-to-volume ratio semiconductor nanowires or nanotubes (such as ZnO, silicon, carbon, etc.) are grown either aligned or randomly-aligned on a substrate. Epoxy or other nonconductive polymers are used to seal portions of the nanowires or nanotubes to create molecule noninteraction zones. By correlating certain molecule species to voltages generated, a nanosensor may quickly identify which species is detected. Nanoconverters in a series parallel arrangement may be constructed in planar, stacked, or rolled arrays to supply power to nano- and micro-devices without use of external batteries. In some cases breath, from human or other life forms, contain sufficient molecules to power a nanoconverter. A membrane permeable to certain molecules around the molecule interaction zone increases specific molecule nanosensor selectivity response.

  6. National-Scale Wind Resource Assessment for Power Generation (Presentation)

    SciTech Connect (OSTI)

    Baring-Gould, E. I.

    2013-08-01

    This presentation describes the current standards for conducting a national-scale wind resource assessment for power generation, along with the risk/benefit considerations to be considered when beginning a wind resource assessment. The presentation describes changes in turbine technology and viable wind deployment due to more modern turbine technology and taller towers and shows how the Philippines national wind resource assessment evolved over time to reflect changes that arise from updated technologies and taller towers.

  7. Preliminary Evaluation of the Section 1603 Treasury Grant Program for Renewable Power Projects in the United States

    E-Print Network [OSTI]

    Bolinger, Mark

    2012-01-01

    Trends in Tax Equity for Renewable Energy. ” Project Financefirms/ _________. 2010b. “Renewable Energy Money Still Goinggoing-overseas/story/renewable- energy-money-still-going-

  8. Preliminary Evaluation of the Section 1603 Treasury Grant Program for Renewable Power Projects in the United States

    E-Print Network [OSTI]

    Bolinger, Mark

    2012-01-01

    Trends in Tax Equity for Renewable Energy. ” Project Financefirms/ _________. 2010b. “Renewable Energy Money Still GoingTreasury Grant Program on Renewable Energy Deployment in

  9. SLAC Next-Generation High Availability Power Supply

    SciTech Connect (OSTI)

    Bellomo, P.; MacNair, D.; ,

    2010-06-11

    SLAC recently commissioned forty high availability (HA) magnet power supplies for Japan's ATF2 project. SLAC is now developing a next-generation N+1 modular power supply with even better availability and versatility. The goal is to have unipolar and bipolar output capability. It has novel topology and components to achieve very low output voltage to drive superconducting magnets. A redundant, embedded, digital controller in each module provides increased bandwidth for use in beam-based alignment, and orbit correction systems. The controllers have independent inputs for connection to two external control nodes. Under fault conditions, they sense failures and isolate the modules. Power supply speed mitigates the effects of fault transients and obviates subsequent magnet standardization. Hot swap capability promises higher availability and other exciting benefits for future, more complex, accelerators, and eventually the International Linear Collider project.

  10. Integrated CMOS Energy Harvesting Converter with Digital Maximum Power Point Tracking for a Portable Thermophotovoltaic Power Generator

    E-Print Network [OSTI]

    Pilawa-Podgurski, Robert

    This paper presents an integrated maximum power point tracking system for use with a thermophotovoltaic (TPV) portable power generator. The design, implemented in 0.35 ?m CMOS technology, consists of a low-power control ...

  11. Spin-on-doping for output power improvement of silicon nanowire array based thermoelectric power generators

    SciTech Connect (OSTI)

    Xu, B., E-mail: bin.xu09@imperial.ac.uk; Fobelets, K. [Department of Electrical and Electronic Engineering, Imperial College London, Exhibition Road, SW7 2BT London (United Kingdom)

    2014-06-07

    The output power of a silicon nanowire array (NWA)-bulk thermoelectric power generator (TEG) with Cu contacts is improved by spin-on-doping (SOD). The Si NWAs used in this work are fabricated via metal assisted chemical etching (MACE) of 0.01–0.02 ? cm resistivity n- and p-type bulk, converting ~4% of the bulk thickness into NWs. The MACE process is adapted to ensure crystalline NWs. Current-voltage and Seebeck voltage-temperature measurements show that while SOD mainly influences the contact resistance in bulk, it influences both contact resistance and power factor in NWA-bulk based TEGs. According to our experiments, using Si NWAs in combination with SOD increases the output power by an order of 3 under the same heating power due to an increased power factor, decreased thermal conductivity of the NWA and reduced Si-Cu contact resistance.

  12. Renewable Electricity Futures for the United States

    SciTech Connect (OSTI)

    Mai, Trieu; Hand, Maureen; Baldwin, Sam F.; Wiser , Ryan; Brinkman, G.; Denholm, Paul; Arent, Doug; Porro, Gian; Sandor, Debra; Hostick, Donna J.; Milligan, Michael; DeMeo, Ed; Bazilian, Morgan

    2014-04-14

    This paper highlights the key results from the Renewable Electricity (RE) Futures Study. It is a detailed consideration of renewable electricity in the United States. The paper focuses on technical issues related to the operability of the U. S. electricity grid and provides initial answers to important questions about the integration of high penetrations of renewable electricity technologies from a national perspective. The results indicate that the future U. S. electricity system that is largely powered by renewable sources is possible and the further work is warranted to investigate this clean generation pathway. The central conclusion of the analysis is that renewable electricity generation from technologies that are commercially available today, in combination with a more flexible electric system, is more than adequate to supply 80% of the total U. S. electricity generation in 2050 while meeting electricity demand on an hourly basis in every region of the United States.

  13. Integration of Electric Energy Storage into Power Systems with Renewable Energy Resources 

    E-Print Network [OSTI]

    Xu, Yixing 1985-

    2012-10-26

    This dissertation investigates the distribution and transmission systems reliability and economic impact of energy storage and renewable energy integration. The reliability and economy evaluation framework is presented. Novel operation strategies...

  14. Power system balancing with high renewable penetration : the potential of demand response

    E-Print Network [OSTI]

    Critz, David Karl

    2012-01-01

    This study investigated the ability of responsive demand to stabilize the electrical grid when intermittent renewable resources are present. The WILMAR stochastic unit commitment model was used to represent a version of ...

  15. Islands and Our Renewable Energy Future (Presentation)

    SciTech Connect (OSTI)

    Baring-Gould, I.; Gevorgian, V.; Kelley, K.; Conrad, M.

    2012-05-01

    Only US Laboratory Dedicated Solely to Energy Efficiency and Renewable Energy. High Contribution Renewables in Islanded Power Systems.

  16. Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01

    Emissions Allowances, and Green Power Programs in Stateadded to serve voluntary green power markets; thus, someprograms, voluntary green power markets, and RPS programs

  17. Subsystem Interaction Analysis in Power Distribution Systems of Next Generation Airlifters

    E-Print Network [OSTI]

    Lindner, Douglas K.

    tolerant, autonomously controlled electrical power system to deliver high quality power from the sources electronics, fault tolerant electrical power distribution systems and electrically driven primary flight1 Subsystem Interaction Analysis in Power Distribution Systems of Next Generation Airlifters Sriram

  18. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Bulk Electric Power Systems: Operations and Transmission by the Alliance for Sustainable Energy, LLC. #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Suggested Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory

  19. Effects of applied voltages and dissolved oxygen on sustained power generation by microbial fuel cells

    E-Print Network [OSTI]

    Effects of applied voltages and dissolved oxygen on sustained power generation by microbial fuel to 0.3 mg/L during MFC operation was not found to adversely affect power generation over subsequent for up to 10 days and 10 hrs also did not affect power generation, as power rapidly returned to previous

  20. WMU Power Generation Study Task 2.0 Corn Cob Co-Combustion Study

    SciTech Connect (OSTI)

    2009-09-30

    Much attention has been focused on renewable energy use in large-scale utilities and very small scale distributed energy systems. However, there is little information available regarding renewable energy options for midscale municipal utilities. The Willmar Municipal Utilities Corn Cob-Coal Co-Combustion Project was initiated to investigate opportunities available for small to midscale municipal utilities to "go green". The overall goal of the Project was to understand the current t'enewable energy research and energy efficiency projects that are or have been implemented at both larger and smaller scale and determine the applicability to midscale municipal utilities. More specific objectives for Task 2.0 of this project were to determine the technical feasibility of co-combusting com cobs with coal in the existing WMU boiler, and to identify any regulatory issues that might need to be addressed if WMU were to obtain a significant portion of its heat from such co-combustion. This report addresses the issues as laid out in the study proposal. The study investigated the feasibility of and demonstrated the technical effectiveness of co-combusting corn cobs with coal in the Willmar Municipal Utilities stoker boiler steam generation power plant. The results of the WMU Co-Combustion Project will serve as a model for other midscale utilities who wish to use corn cobs to generate renewable electrical energy. As a result of the Co-Combustion Project, the WMU plans to upgrade their stoker boiler to accept whole corn cobs as well as other types of biomass, while still allowing the fuel delivery system to use 100% coal as needed. Benefits of co-combustion will include: energy security, reduced Hg and CO2 air emissions, improved ash chemistry, potential future carbon credit sales, an immediate positive effect on the local economy, and positive attention focused on the WMU and the City of Willmar. The first step in the study was to complete a feasibility analysis. The feasibility analysis anticipated only positive results from the combustion of corn cobs with coal in the WMU power plant boiler, and therefore recommended that the project proceed. The study proceeded with a review of the existing WMU Power Plant configuration; cob fuel analyses; an application for an Air Quality Permit from the Minnesota Pollution Control Agency to conduct the co-combustion test burns; identification of and a site visit to a similar facility in Iowa; an evaluation of cob grinding machines; and agreements with a corn grower, a cob harvester, and the City of Willmar to procure, harvest, and store cobs. The WMU power plant staff constructed a temporary cob feed system whereby the cobs could be injected into the #3 Boiler firebox, at rates up to 40% of the boiler total heat input. Test burns were conducted, during which air emissions were monitored and fuel and ash samples analyzed. The results of the test burns indicated that the monitored flue gas quality improved slightly during the test burns. The WMU was able to determine that modifications to the #3 Boiler fuel feed system to accept com cobs on a permanent basis would be technically feasible and would enable the WMU to generate electricity from renewable fuels on a dispatchable basis.