National Library of Energy BETA

Sample records for kw electrical efficiency

  1. Development and Demonstration of a New Generation High Efficiency 10kW Stationary Fuel Cell System

    SciTech Connect (OSTI)

    Howell, Thomas Russell

    2013-04-30

    The overall project objective is to develop and demonstrate a polymer electrolyte membrane fuel cell combined heat and power (PEMFC CHP) system that provides the foundation for commercial, mass produced units which achieve over 40% electrical efficiency (fuel to electric conversion) from 50-100% load, greater than 70% overall efficiency (fuel to electric energy + usable waste heat energy conversion), have the potential to achieve 40,000 hours durability on all major process components, and can be produced in high volumes at under $400/kW (revised to $750/kW per 2011 DOE estimates) capital cost.

  2. ELECTRICITY FROM WOOD-FIRED GASIFICATION IN UGANDA -A 250 AND 10KW CASE STUDY

    E-Print Network [OSTI]

    Vermont, University of

    electricity at US$ 0.18 and 0.34/kWh, respectively. A stable electricity demand close to the rated capacityELECTRICITY FROM WOOD-FIRED GASIFICATION IN UGANDA - A 250 AND 10KW CASE STUDY Thomas Buchholza their potential to compete economically with diesel generated electricity when operating close to the rated

  3. 5 kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive

    E-Print Network [OSTI]

    Tolbert, Leon M.

    5 kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive Applications Faisal H) for future hybrid electric vehicle and fuel cell automotive applications will be presented in this paper will impact if the 42V/14V dual bus system will be a successful and cost effective solution for future

  4. Design of a high efficiency 30 kW boost composite converter

    SciTech Connect (OSTI)

    Kim, Hyeokjin; Chen, Hua; Maksimovic, Dragan; Erickson, Robert W.

    2015-09-20

    An experimental 30 kW boost composite converter is described in this paper. The composite converter architecture, which consists of a buck module, a boost module, and a dual active bridge module that operates as a DC transformer (DCX), leads to substantial reductions in losses at partial power points, and to significant improvements in weighted efficiency in applications that require wide variations in power and conversion ratio. A comprehensive loss model is developed, accounting for semiconductor conduction and switching losses, capacitor losses, as well as dc and ac losses in magnetic components. Based on the developed loss model, the module and system designs are optimized to maximize efficiency at a 50% power point. Experimental results for the 30 kW prototype demonstrate 98.5%peak efficiency, very high efficiency over wide ranges of power and voltage conversion ratios, as well as excellent agreements between model predictions and measured efficiency curves.

  5. Low-Cost 63% Efficient 2.5-kW UHF Power Amplifier for a Wind Profiler Radar

    E-Print Network [OSTI]

    Popovic, Zoya

    Low-Cost 63% Efficient 2.5-kW UHF Power Amplifier for a Wind Profiler Radar Brad Lindseth1,2 , Tom describes a low-cost 449-MHz 2.5-kW peak pulse amplifier for use in a wind profiling radar. New high- powerW cost upwards of US$30,000 [2,3]. The goal of this work is to develop a low-cost UHF power amplifier

  6. Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios

    E-Print Network [OSTI]

    Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios 2009/11/30­12/01 István Maros Electricity Portfolio #12;Introduction Computational Efficiency Electricity Portfolio Outline 1 Introduction 2 Computational Efficiency 3 Electricity Portfolio Approximate

  7. High Efficiency 370kW Microturbine with Integral Heat Recovery

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

    Design a small turbine power generation system with the following: 42% Engine Efficiency 85% Total System Efficiency with CHP 2007 CARB-level emissions without...

  8. High Efficiency Microturbine with Integral Heat Recovery

    SciTech Connect (OSTI)

    2010-10-01

    Fact sheet: this project will develop a clean, cost-effective 370 kW microturbine with 42% net electrical efficiency and 85% total CHP efficiency.

  9. Cuivre River Electric- Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Cuivre River Electric Cooperative, through the Take Control & Save program, offers rebates for cooperative members who purchase efficient geothermal and dual fuel heat pumps, and electric water...

  10. High Efficiency Microturbine with Integral Heat Recovery- Fact Sheet, 2014

    Broader source: Energy.gov [DOE]

    Fact sheet: this project will develop a clean, cost-effective 370 kW microturbine with 42% net electrical efficiency and 85% total CHP efficiency

  11. Design Aspects of a 250 kW SOFC SystemDesign Aspects of a 250 kW SOFC System Strategies to Counteract Stack DegradationStrategies to Counteract Stack Degradation

    E-Print Network [OSTI]

    -supported Metallic Interconnect Operates at 750 °C Low degradation Currently tested at pilot test facilities Extensive fuel processing experience #12;Conceptual Study 250 kW SystemConceptual Study 250 kW System · Decrease fuel utilisation Higher Nernst potential but lower electric efficiency · Decrease Cell Voltage

  12. Determining Electric Motor Load and Efficiency

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

    DETERMINING ELECTRIC MOTOR LOAD AND EFFICIENCY Most likely your operation's motors account for a large part of your monthly electric bill. Far too often motors are mismatched-or...

  13. Kirkwood Electric- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Kirkwood Electric offers rebates to its residential customers who install energy-efficient heat pumps and electric hot water heaters in their new and existing homes. Customers will be given a...

  14. Southwest Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Southwest Electric Cooperative offers rebates to its customers that purchase energy efficient heating and air conditioning equipment . This program offers rebates for customers who buy Energy Star...

  15. Intercounty Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Intercounty Electric Cooperative provides rebates to its customers for the purchase of a variety of energy efficient equipment and appliances. Eligible technologies include: geothermal, air source,...

  16. Buying an Energy-Efficient Electric Motor

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

    efficiency testing protocol is the Institute of Electrical and Elec- tronics Engineers (IEEE ) 112 Method B, which uses a dynamometer to measure motor output under load. Different...

  17. Western Massachusetts Electric- Commercial Energy Efficiency Rebates

    Broader source: Energy.gov [DOE]

    Western Massachusetts Electric (WMECO) helps commercial and industrial customers offset the additional costs of purchasing and installing energy efficient equipment. WMECO offers rebates for...

  18. National Grid (Electric) - Residential Energy Efficiency Rebate...

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

    https:www1.nationalgridus.comEnergyEfficiencyPrograms Expiration Date 12312015 State New York Program Type Rebate Program Rebate Amount Electric Water heaters ENERGY STAR Heat...

  19. Pedernales Electric Cooperative- Commercial Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    For existing and new commercial construction, Pedernales Electric Cooperative provides incentives for kW saved through efficient lighting. Rebates vary based upon whether construction is new or...

  20. Market Organization and Efficiency in Electricity Markets

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    Market Organization and Efficiency in Electricity Markets Erin T. Mansur and Matthew W. White October 2007 ­ Draft Abstract Electricity markets exhibit two different forms of organization costs. Our analysis points to the merits of organized market institutions for electricity, a central

  1. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    load electricity (kW) thermal storage storage charging non-avoidable electrical and thermal storage costs are set tototal electric load thermal storage solar thermal storage

  2. UES (Electric)- Residential Efficiency Program

    Broader source: Energy.gov [DOE]

    UniSource Energy Services (UES) offers rebates to its residential customers who have certain energy efficient equipment installed by participating contractors. The rebate is provided directly to...

  3. A 10kW photovoltaic/hybrid system for Pinnacles National Monument

    SciTech Connect (OSTI)

    Ball, T.J. [Applied Power Corp., Lacey, WA (United States); DeNio, D. [National Park Service, Denver, CO (United States). Denver Service Center

    1997-12-31

    Visitors to the Chaparral area of the Pinnacles National Monument now can enjoy this beautiful section of the park without the constant drone of diesel generators, thanks to a recently installed photovoltaic/hybrid system. Electrical power had been supplied by two 100 KW diesel generators operating 24 hours per day. The diesels were running lightly loaded resulting in poor efficiency and high operating cost. Applied Power Corporation under contract with the National Park Service designed and supplied a 10 KW photovoltaic array, 200 KW hr battery bank and 24 KW of inverters to power the maintenance facility, visitor center and ranger residences. A new 20 KW propane generator was installed to provide supplemental power, totally eliminating the storage and transport of diesel fuel at this site. The Pinnacles PV/Hybrid system was brought on line in early 1996 and the park is now benefiting from the cost savings associated with the system.

  4. Berkeley Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Berkeley Electric Cooperative (BEC) offers several rebates to residential customers for energy efficiency upgrades. The H2O Advantage Water Heater Rebate Program offers a rebate of up to $300 for...

  5. Delta-Montrose Electric Association- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Delta-Montrose Electric Association (DMEA) offers a variety of rebates for customers who buy energy efficient appliances and equipment. Rebates are available for energy efficient electric water...

  6. Advanced Systems of Efficient Use of Electrical Energy SURE ...

    Open Energy Info (EERE)

    Advanced Systems of Efficient Use of Electrical Energy SURE (Smart Grid Project) Jump to: navigation, search Project Name Advanced Systems of Efficient Use of Electrical Energy...

  7. Electrical and Thermal Transport Optimization of High Efficient...

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

    Electrical and Thermal Transport Optimization of High Efficient n-type Skutterudites Electrical and Thermal Transport Optimization of High Efficient n-type Skutterudites Work on...

  8. Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?

    E-Print Network [OSTI]

    Letschert, Virginie

    2010-01-01

    2007). Coping with Residential Electricity Demand in India'sResidential Electricity Demand in China –Can EfficiencyBoom of Electricity Demand in the residential sector in the

  9. Thermal design requirements of a 50-kW zinc/redox flow battery for solar electrical energy storage

    SciTech Connect (OSTI)

    Selman, J.R.; Wu, H.; Hollandsworth, R.P.

    1985-01-01

    The conceptual engineering design of a large-scale zinc/redox battery for solar electrical energy storage involves the management of considerable heat flows. This is due to the large heat-of-crystallization of sodium ferrocyanide decahydrate produced during discharge, as well as the usual reversible and irreversible cell-reaction heat effects. A discussion of practical design implications is presented.

  10. Thermal design requirements of a 50-kW zinc/redox flow battery for solar electrical energy storage

    SciTech Connect (OSTI)

    Selman, J.R.; Wu, H.; Hollandsworth, R.P.

    1984-09-01

    The conceptual engineering design of a large-scale zinc/redox battery for solar electrical energy storage involves the management of considerable heat flows. This is due to the large heat-of-crystallization of sodium ferrocyanide decahydrate produced during discharge as well as the usual reversible and irreversible cell-reaction heat effects. A discussion of practical design implications is presented.

  11. Ozark Border Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Ozark Border Electric Cooperative has made rebates available to residential members for the installation of energy efficient geothermal and air source heat pumps, electric water heaters, and room...

  12. Verdigris Valley Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Verdigris Valley Electric Cooperative (VVEC) offers rebates for residential customers who purchase energy efficient home equipment. Rebates are available for room air conditioners, electric water...

  13. Dixie Electric Cooperative- Residential Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    Dixie Electric Cooperative, a Touchstone Electric Cooperative, offers the Energy Resources Conservation (ERC) loan to residential customers pursue energy efficiency measures. The program allows a...

  14. Firelands Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Firelands Electric Cooperative (FEC) is offering rebates on energy efficient equipment to residential customers receiving electric service from FEC. Eligible equipment includes new Geothermal Heat...

  15. Ultra-Efficient and Power-Dense Electric Motors

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

    Ultra-Efficient and Power-Dense Electric Motors Advanced Electric Motors Offer Large Energy Savings in Industrial Applications Pumps, fans, and compressors use more than 60% of...

  16. Development of a 55 kW 3X DC-DC Converter for HEV Systems

    E-Print Network [OSTI]

    Tolbert, Leon M.

    efficiency provide the great potential for the very high temperature operation. The circuit parameter design converter and a traction motor to drive the vehicle. In most commercial HEV systems, the power converter, 37996 Abstract--The design of a 55 kW 3X dc-dc converter is presented for hybrid electric vehicle (HEV

  17. Energy-efficient electric motors study

    SciTech Connect (OSTI)

    Not Available

    1981-03-23

    The study identifies the industrial decision makers, investigated the information they needed to know, how they can best be reached, and the motivating factors for purchasing energy-efficient electric motors. A survey was conducted of purchasers of integral horsepower polyphase motors. The survey measured current knowledge of and awareness of energy-efficient motors, decision-making criteria, information sources, purchase and usage patterns, and related factors. The survey data were used for the electric motor market penetration analysis. Additionally, a telephone survey was made. The study also provides analyses of distribution channels, commercialization constraints, and the impacts of government programs and rising energy prices. A description of study findings, conclusions, and recommendations is presented. Sample questionnaires and copies of letters to respondents are presented in 3 appendices. Appendices D and E contain descriptions of the methods used. (MCW)

  18. Delta-Montrose Electric Association- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Delta-Montrose Electric Association (DMEA) offers a variety of rebates to commercial customers which upgrade to energy efficient equipment. Rebates are available for energy efficient heat pumps,...

  19. Coast Electric Power Association- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Coast Electric Power Association provides incentives for commercial customers to increase the energy efficiency of facilities. Rebates are provided for new or replacement energy efficient heat...

  20. Ames Electric Department- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    The City of Ames Electric Services offers a variety of services and rebates for residential customers interested in purchasing energy efficient appliances or making energy efficiency improvements...

  1. Distributed Energy Resources On-Site Optimization for Commercial Buildings with Electric and Thermal Storage Technologies

    E-Print Network [OSTI]

    Stadler, Michael

    2008-01-01

    photovoltaics and solar thermal collectors; electricalelectricity) solar thermal collector (kW) PV (kW) electricelectricity) solar thermal collector (kW) PV (kW) electric

  2. Multi-Project Baselines for Evaluation of Industrial Energy-Efficiency and Electric Power Projects

    E-Print Network [OSTI]

    2001-01-01

    industrial energy- efficiency and electric power projects.of Industrial Energy-Efficiency and Electric Power Projectsof Industrial Energy-Efficiency and Electric Power Projects

  3. 3kW Stirling engine for power and heat production

    SciTech Connect (OSTI)

    Thorsen, J.E.; Bovin, J.; Carlsen, H.

    1996-12-31

    A new 3 kW Beta type Stirling engine has been developed. The engine uses Natural gas as fuel, and it is designed for use as a small combined heat and power plant for single family houses. The electrical power is supplied to the grid. The engine is made as a hermetic device, where the crank mechanism and the alternator are built into a pressurized crank casing. The engine produce 3 kW of shaft power corresponding to 2.4 kW of electric power. The heat input is 10 kW corresponding to a shaft efficiency of 30%, and an electric efficiency of 24%. Helium at 8 MPa mean pressure is used as working gas. The crank mechanism is a combination of an upper- and lower yoke, each forming the half of a Ross mechanism. The upper yoke is linked to the displacer piston and the lower yoke is linked to the working piston. The design gives an approximately linear couple point curve, which eliminates guiding forces on the pistons and the need for X-heads. Grease lubricated needle and ball bearings are used in the kinematic crank mechanism. The burner includes an air preheater and a water jacket, which makes it possible to utilize nearly all of the heat from the combustion gases. The performance of the engine has been tested as a function of mean pressure and hot and cold temperature, and emissions and noise have been measured.

  4. Rural Electric Cooperatives Energy Efficiency Rebate Programs...

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

    (REC) and one municipal electric cooperative in the state of Iowa. They are: Clarke Electric Cooperative Consumers Energy Cooperative East-Central Iowa REC Eastern Iowa Light and...

  5. DOE Report to Congress?Energy Efficient Electric and Natural...

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

    REGIONAL POLICIES THAT PROMOTE ENERGY EFFICIENCY PROGRAMS CARRIED OUT BY ELECTRIC AND GAS UTILITIES A REPORT TO THE UNITED STATES CONGRESS PURSUANT TO SECTION 139 OF THE ENERGY...

  6. Citizens Electric Corporation- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Citizens Electric Corporation offers rebates and price reductions to its residential customers for purchasing and installing energy efficient equipment. Eligible equipment and measures include a...

  7. ConEd (Electric)- Commercial and Industrial Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    The Commercial and Industrial Equipment Rebate and Commercial and Industrial Custom Efficiency Programs offer incentives to directly metered electric customers in good standing who contribute to...

  8. Low Interest Energy Efficiency Loan Program (Electric and Gas)

    Broader source: Energy.gov [DOE]

    Energize CT offers low interest loans for commercial and industrial customers for investments in energy efficiency improvements. Electric customers of Connecticut Light & Power, United...

  9. Douglas Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Douglas Electric Cooperative offers rebates to its members for the purchase of energy efficient products and measures.  Rebates include clothes washers, heat pumps, manufactured homes, and...

  10. Making the most of Responsive Electricity Customer. Energy Efficiency...

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

    Making the most of Responsive Electricity Customer. Energy Efficiency and Demand Response: How do we make the most out of using less energy? Making the most of Responsive...

  11. Ames Electric Department- Commercial Energy Efficiency Rebate Programs

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Ames Electric Department provides free energy audits and multiple energy efficiency rebates for commercial and industrial customers. The rebate programs available include: The Appliance Rebate...

  12. Grayson Rural Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Grayson Rural Electric Cooperative provides rebates to its customers for increasing their energy efficiency. Members who make improvements based on recommendations by the utility's energy advisor...

  13. Clay Electric Cooperative, Inc- Energy Smart Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Rebates are available only to Clay Electric Cooperative (CEC) residential members who are making efficiency upgrades to primary residence served by CEC. Rebates are available for residential...

  14. Guadalupe Valley Electric Cooperative- Residential Energy Efficiency Rebate Programs

    Office of Energy Efficiency and Renewable Energy (EERE)

    Guadalupe Valley Electric Cooperative (GVC) offers a variety of incentives to help residential customers save energy. Rebates are available for energy efficient new homes and improvements to...

  15. Missouri Rural Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Missouri Rural Electric Cooperative (MREC) offers a number of rebates to residential customers for the purchase and installation of energy efficient equipment. Eligible equipment includes clothes...

  16. Approaches to Electric Utility Energy Efficiency for Low Income...

    Open Energy Info (EERE)

    Approaches to Electric Utility Energy Efficiency for Low Income Customers in a Changing Regulatory Environment Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Approaches...

  17. Chicopee Electric Light- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Chicopee Electric Light (CEL) offers a Pilot Energy Efficiency Program to encourage non-residential, commercial, and industrial facilities to pursue energy saving measures and install energy...

  18. Louisville Gas & Electric- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Louisville Gas & Electric's Home Energy Rebate program provides incentives for residential customers to upgrade to energy efficiency home appliances and heat and air conditioning equipment. ...

  19. Empire Electric Association- Commercial Energy Efficiency Credit Program

    Broader source: Energy.gov [DOE]

    Empire Electric Association provides rebates for its commercial customers who upgrade to energy efficient lighting, HVAC equipment, and motors.  These rebates are offered in conjunction with Tri...

  20. Burlington Electric Department-Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Burlington Electric Department (BED) offers a variety of rebate incentives to its commercial customers. The Commercial Energy Efficiency Program provides significant rebates for , HVAC systems,...

  1. Central New Mexico Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Central New Mexico Electric Cooperative (CNMEC) provides an incentive for its residential members to purchase energy efficient water heaters, clothes washers, dishwashers, refrigerators, and...

  2. Yellowstone Valley Electric Cooperative- Residential/Commercial Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The Yellowstone Valley Electric Cooperative offers rebates to residential and commercial members for purchasing energy efficient add-on heat pumps, geothermal heat pumps, water heaters, dishwashers...

  3. Empire Electric Association- Residential Energy Efficiency Credit Program

    Broader source: Energy.gov [DOE]

    Empire Electric Association provides financial incentives to its residential consumers who upgrade to energy efficient appliances and HVAC equipment.  These rebates are offered in conjunction with...

  4. San Isabel Electric Association- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    San Isabel Electric Association (SIEA) provides incentives for its residential customers to install energy efficient equipment. Rebates are available for certain water heaters, washers, dryers,...

  5. Case Studies of High Efficiency Electric Motor Applicability 

    E-Print Network [OSTI]

    Wagner, J. R.

    1985-01-01

    Much has been written about the advantages and disadvantages of high efficiency electric motors. For a given motor application it is possible to find literature that enables a plant engineer to make an informed choice between a standard efficiency...

  6. Energy efficiency indicators for high electric-load buildings

    SciTech Connect (OSTI)

    Aebischer, Bernard; Balmer, Markus A.; Kinney, Satkartar; Le Strat, Pascale; Shibata, Yoshiaki; Varone, Frederic

    2003-06-01

    Energy per unit of floor area is not an adequate indicator for energy efficiency in high electric-load buildings. For two activities, restaurants and computer centres, alternative indicators for energy efficiency are discussed.

  7. Development of Ulta-Efficient Electric Motors

    SciTech Connect (OSTI)

    Shoykhet, B.; Schiferl, R.; Duckworth, R.; Rey, C.M.; Schwenterly, S.W.; Gouge, M.J.

    2008-05-01

    Electric motors utilize a large amount of electrical energy in utility and industrial applications. Electric motors constructed with high temperature superconducting (HTS) materials have the potential to dramatically reduce electric motor size and losses. HTS motors are best suited for large motor applications at ratings above 1000 horsepower (hp), where the energy savings from the efficiency improvement can overcome the additional power required to keep the superconductors on the rotor cooled. Large HTS based motors are expected to be half the volume and have half the losses of conventional induction motors of the same rating. For a 5000 hp industrial motor, this energy savings can result in $50,000 in operating cost savings over the course of a single year of operation. Since large horsepower motors utilize (or convert) about 30% of the electrical power generated in the United States and about 70% of large motors are candidates for replacement by HTS motors, the annual energy savings potential through the utilization of HTS motors can be up to $1 Billion in the United States alone. Research in the application of HTS materials to electric motors has lead to a number of HTS motor prototypes yet no industrial HTS motor product has yet been introduced. These motor demonstrations have been synchronous motors with HTS field windings, on the rotor. Figure 1-1 shows a solid model rendering of this type of motor. The rotor winding is made with HTS coils that are held at cryogenic temperature by introducing cooling fluid from the cryocooler to the rotor through a transfer coupling. The stator winding is made of copper wire. The HTS winding is thermally isolated from the warm armature and motor shafts by a vacuum insulation space and through the use of composite torque tubes. The stator in Figure 1-1 is an air core stator in that the stator teeth and a small part of the yoke is made up of nonmagnetic material so the magnetic fields distribute themselves as if in air. Between the HTS field winding and the physical air gap is a series of concentric cylinders that act as vacuum insulation space walls as well as conducting paths for induced currents to flow in order to shield the HTS winding and the rotor cold space from time dependent fields. These time dependent fields may be caused by rotor hunting, during a change in motor load, or by non-fundamental component voltages and currents applied by the inverter. These motors are variable speed controlled by the inverter. Common large motor utility and industrial applications are pump and fan drives that are best suited by a variable speed motor. Inverter control of the HTS motor eliminates the need to design the rotor for line starting, which would dump a large amount of heat into the rotor that would then heavily tax the cryogenic cooling system. The field winding is fed by a brushless exciter that provides DC current to the HTS rotor winding. The stator winding is air or water cooled. Technical and commercial hurdles to industrial HTS motor product introduction and customer acceptance include (1) the high cost of HTS wire and the cryogenic cooling system components, (2) customer concerns about reliability of HTS motors, and (3) the ability to attain the loss reduction potential of large HTS motors. Reliance Electric has demonstrated a number of HTS based electric motors up to a 1000 hp, variable speed synchronous motor with an HTS field winding in the year 2000. In 2001 this motor was tested to 1600 hp with a sinusoidal (constant frequency) supply. Figure 1-2 shows the HTS motor on the dynamometer test stand in the Reliance Electric test lab. The extensive test program of the 1000 hp motor successfully demonstrated the technical feasibility of large HTS motors and the basic technologies involved, however the test results did indicate the need for design refinements. In addition, test results served to identify other more fundamental critical technology issues, and revealed the need to continue research efforts in order to improve future HTS motor first cost, reliability, and performa

  8. Electricity and Natural Gas Efficiency Improvements for Residential Gas Furnaces in the U.S.

    E-Print Network [OSTI]

    Lekov, Alex; Franco, Victor; Meyers, Steve; McMahon, James E.; McNeil, Michael; Lutz, Jim

    2006-01-01

    Electricity and Natural Gas Efficiency Improvements forair and fueled by natural gas. Electricity consumption by aair is Electricity and Natural Gas Efficiency Improvements

  9. Energy Efficiency in the Microelectronics Industry 

    E-Print Network [OSTI]

    Bhatti, B.

    1998-01-01

    Distnbution and how a system approach to understanding these can result in developing energy efficient sites for this industry. OVERVIEW Almost all sites trend and trdck their electric demand KW and KWH profile along with their electric utility bill... selected buildings with utility rdtes and air and plant system simulated data generdting a variety of outputs to display total energy use information. We will use this to generdte KW, KWH profIles and then component annual electric costs. igure 3...

  10. Efficiency Impact of Convergence Bidding on the California Electricity Market

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Efficiency Impact of Convergence Bidding on the California Electricity Market Ruoyang Li · Alva J is a financial mechanism that allows market participants, including electricity suppliers, consumers and virtual]. We analyze mar- ket data in the CAISO electric power markets, and empirically test for market

  11. Electric Power Board- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Electric Power Board provides a financial incentive for residential customers to replace old water heaters with new ones which meet the minimum standards set forth by the DOE. The rebate is worth ...

  12. Douglas Electric Cooperative- Residential Energy Efficiency Loans

    Broader source: Energy.gov [DOE]

    Douglas Electric Cooperative offers financing for heat pumps and weatherization. Insulation levels for this climate zone should be a minimum of R-38 in the ceiling, R-19 in the floor and R-11 in...

  13. El Paso Electric Company- Residential Efficiency Program

    Broader source: Energy.gov [DOE]

    EPE offers incentives to residential customers in its New Mexico service territory that purchase and install high efficiency equipment for residential use. Eligible equipment includes air...

  14. High Efficiency Fans and High Efficiency Electrical Motors 

    E-Print Network [OSTI]

    Breedlove, C. W.

    1989-01-01

    operates from 800 hours to 1500 hours per year or 15% of the year. Sixty percent of the connected horsepower is operating pneumatic air fans. These pneumatic fans transport the seed cotton, cotton lint, cottonseed and cotton trash throughout... efficiency will be consistent and ongoing. Since pneumat cs use 60% of the total power consumed in a cotton gin it seemed the most likely pace to improve efficiency. Each fan's sys em was redesigned and engineered. Not on y were old inefficient fans...

  15. Economic Realities and Energy Efficient Polyphase Integral Horsepower Electric Motors 

    E-Print Network [OSTI]

    Whittington, B. W.

    1980-01-01

    Energy efficient polyphase integral horsepower electric motors are currently being vigorously promoted as a profitable method of conserving energy in many industrial and commercial applications. While the goal to be attained is indeed laudable...

  16. City of Concord Electric Department- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The City of Concord Electric Department offers an incentive program encouraging its residential customers to replace their existing HVAC system with a more energy efficient heat pump system.  Heat...

  17. New Energy Efficiency Standards for Electric Motors and Walk...

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

    Motors and Walk-in Coolers and Freezers to Save on Energy Bills and Reduce Carbon Pollution New Energy Efficiency Standards for Electric Motors and Walk-in Coolers and Freezers...

  18. Empire District Electric- Commercial & Industrial Energy Efficiency Rebates

    Broader source: Energy.gov [DOE]

    The Empire District Electric Company offers a Commercial/Industrial Prescriptive Rebate Program to its non-residential customers in Arkansas who purchase certain high-efficiency equipment for...

  19. La Plata Electric Association- Energy Efficient Equipment Rebate Program

    Broader source: Energy.gov [DOE]

    La Plata Electric Association (LPEA) offers a variety of rebates for members to improve the efficiency of homes and facilities. Rebates are available for a variety of Energy Star appliances, the...

  20. Co-Mo Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Co-Mo Electric Cooperative provides rebates to its residential and commercial members who install air source, dual fuel, and/or geothermal heat pumps, and certain energy efficient appliances. Heat...

  1. Electrical Equipment Replacement: Energy Efficiency versus System Compatibility 

    E-Print Network [OSTI]

    Massey, G. W.

    2005-01-01

    Electrical equipment components are replaced every day because of failure, obsolescence, or upgrade. Because of technological gains, replacement components are typically more energy efficient than older equipment. Life cycle cost analyses encourage...

  2. Maine: Energy Efficiency Program Helps Generate Town's Electricity

    Office of Energy Efficiency and Renewable Energy (EERE)

    Energy Efficiency program helps municipalities with their energy bills. Thomaston, Maine, was able to install solar panels to generate 13% of the electricity used by the wastewater treatment facility.

  3. Chicopee Electric Light- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Chicopee Electric Light (CEL) offers a variety of incentives for its residential customers to increase the energy efficiency of participating homes. CEL provides rebates for heat pump water heaters...

  4. State Electric Efficiency Regulatory Frameworks (July 2012 IEE Report)

    Broader source: Energy.gov [DOE]

    This report summarizes ongoing and recent policy developments that support utility investments in energy efficiency, including program cost recovery, fixed cost recovery, and performance incentives for electric utilities on a state-by-state basis.

  5. Ultra-Efficient and Power-Dense Electric Motors

    SciTech Connect (OSTI)

    2009-01-01

    This factsheet describes a research project whose goal is to develop line-start and line-run constant-speed electric motors and simple-to-control electric motors with the goal of obtaining at least a 30% reduction in motor losses as compared to conventional energy-efficient induction motors and a 15% reduction in motor losses as compared to NEMA Premium® efficient induction motors.

  6. CSEM WP 106R Investment Efficiency in Competitive Electricity

    E-Print Network [OSTI]

    California at Berkeley. University of

    Efficiency in Competitive Electricity Markets With and Without Time-Varying Retail Prices Severin Borenstein, there is no restruc- tured electricity market in which most retail customers can be charged realtime prices (RTP industries, retail prices do not adjust quickly to changes in costs or market conditions. Restaurants keep

  7. Smart Meter Deployment Optimization for Efficient Electrical Appliance State Monitoring

    E-Print Network [OSTI]

    Wang, Yongcai

    in such buildings, researches in the field of smart building and smart grid are exploring an efficient energy high costs to the smart meter deploy- ment, data collection and system maintenance. In practiceSmart Meter Deployment Optimization for Efficient Electrical Appliance State Monitoring Xiaohong

  8. Energy Efficient Navigation Management for Hybrid Electric Vehicles on Highways

    E-Print Network [OSTI]

    Wang, Yongge

    Energy Efficient Navigation Management for Hybrid Electric Vehicles on Highways Mohammad Ashiqur the elec- tric power stored in the battery as energy, as an alternative to traditional gasoline Vehicles (PHEVs) are gaining pop- ularity due to their economical efficiency as well as their contribution

  9. System and method to determine electric motor efficiency nonintrusively

    DOE Patents [OSTI]

    Lu, Bin (Kenosha, WI); Habetler, Thomas G. (Snellville, GA); Harley, Ronald G. (Lawrenceville, GA)

    2011-08-30

    A system and method for nonintrusively determining electric motor efficiency includes a processor programed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.

  10. Has Restructuring Improved Operating Efficiency at U.S. Electricity Generating Plants?

    E-Print Network [OSTI]

    Fabrizio, Kira; Rose, Nancy; Wolfram, Catherine

    2004-01-01

    Cost Efficiency of Electric Generating Plants: A Stochasticat US Electricity Generating Plants? Kira Markiewicz, Nancyat US Electricity Generating Plants? Kira Markiewicz UC

  11. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    Business as Usual (BAU) Scenario 1 – Electricity Demand andEnergy Efficiency (SEE) Scenario 2– Electricity Demand andCA 94720 Abstract Electricity demand has consistently

  12. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    for Electricity Generation Efficiency of Fuel Requirementof Electricity Generation ..7 Table 3: Fuel2:Variable (Fuel and O&M) Costs of Electricity Generation

  13. High efficient electrical stimulation of hippocampal slices with vertically aligned carbon nanofiber microbrush array

    E-Print Network [OSTI]

    2009-01-01

    9295-7 High efficient electrical stimulation of hippocampalE. D. de Asis Jr. Departments of Electrical Engineering andaligned carbon nanofiber . Electrical stimulation . Neural

  14. Electricity and Natural Gas Efficiency Improvements for Residential Gas Furnaces in the U.S.

    E-Print Network [OSTI]

    Lekov, Alex; Franco, Victor; Meyers, Steve; McMahon, James E.; McNeil, Michael; Lutz, Jim

    2006-01-01

    offsets the sizable electricity savings. References TitleElectricity and Natural Gas Efficiency Improvements forfueled by natural gas. Electricity consumption by a furnace

  15. Central Electric Cooperative - Residential Energy Efficiency Rebate

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a lCaribElectricSouthApplying caulk to a DanielPrograms | Department

  16. Manufacturing Cost Analysis of 1 kW and 5 kW Solid Oxide Fuel...

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

    kW and 5 kW Solid Oxide Fuel Cell (SOFC) for Auxiliary Power Applications Manufacturing Cost Analysis of 1 kW and 5 kW Solid Oxide Fuel Cell (SOFC) for Auxiliary Power...

  17. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    Energy Efficiency under a Federal Renewable Electricity Standard: CaseEnergy Efficiency under a Federal Renewable Electricity Standard: Case

  18. SOFCSOFC (10kW(10kW )) Stack Stack ( )

    E-Print Network [OSTI]

    Hong, Deog Ki

    & Mitsubishi (band ) 150 kW module Rolls-Royce () 100kW SOFC TOTO, Kyushu () 20kW stack wet process #12;2 SOFC () Mitsubishi Heavy Ind. § SIS § 250kW § 55% Rolls-Royce § SIS § 250kW (micro GT-SOFC) § 53% (125 kW ) Tokyo Gas § SIS § kW (5kW ) / #12

  19. Distributional and Efficiency Impacts of Clean and Renewable Energy Standards for Electricity

    E-Print Network [OSTI]

    Rausch, Sebastian

    2012-07-17

    We examine the efficiency and distributional impacts of greenhouse gas policies directed toward the electricity

  20. CSEM WP 111R The Efficiency of Electricity Generation

    E-Print Network [OSTI]

    California at Berkeley. University of

    -utility generating plants. Then, beginning with California in 1996, nearly half the states passed and a smaller-utility generators, specifically cogeneration facilities or plants using renewable resources. Also, initiativesCSEM WP 111R The Efficiency of Electricity Generation in the U.S. After Restructuring Catherine

  1. THE EFFICIENCY OF ELECTRICITY GENERATION IN THE US AFTER RESTRUCTURING

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    environments. The Energy Policy Act of 1992 opened access to transmission for non-utility generating plants-utility generators, specifically cogeneration facilities or plants using renewable resources. Also, initiativesTHE EFFICIENCY OF ELECTRICITY GENERATION IN THE US AFTER RESTRUCTURING Catherine Wolfram· UC

  2. Development of an International Electric Cooperative Initiative on Energy Efficiency

    SciTech Connect (OSTI)

    Paul Clark; David South

    2004-05-01

    NRECA conceived of the International Electric Cooperative Initiative on Energy Efficiency (IECIEE) in order to provide an ongoing means of contributing voluntary actions on greenhouse gas emissions mitigation as an integral component of its international programs and projects. This required designing the IECIEE to be integrated directly with the core interests and attributes of participating cooperatives in the U.S. and Latin America, which was the initial focus area selected for the IECIEE. In the case of NRECA International, the core interests related to promoting and strengthening the electric cooperative model, which has proved highly successful in maximizing operational efficiencies in electric power generation, distribution and retailing, as compared to government-owned entities. The approach involved three basic components: (i) establishing the IECIEE mechanism, which involved setting up a functioning organizational vehicle providing for investment, management, and emissions credit accounting; (ii) developing a portfolio of projects in countries where NRECA International could effectively implement the broader mandate of cooperative development as energy efficient suppliers and distributors of electrical energy; and (iii) conducting outreach to obtain the commitment of participants and resources from U.S. and Latin American cooperatives and partnering agencies in the development financing community.

  3. Analysis of highly-efficient electric residential HPWHs

    SciTech Connect (OSTI)

    Baxter, Van D; Murphy, Richard W; Rice, C Keith; Shen, Bo; Gao, Zhiming

    2011-09-01

    A scoping level analysis was conducted to identify electric HPWH concepts that have the potential to achieve or exceed 30% source energy savings compared to a gas tankless water heater (GTWH) representative of the type represented in version 0.9.5.2 beta of the BEopt software developed by the National Renewable Energy Laboratory. The analysis was limited to evaluation of options to improve the energy efficiency of electric HPWH product designs currently on the market in the US. The report first defines the baseline GTWH system and determines its efficiency (source-energy-based adjusted or derated EF of ~0.71). High efficiency components (compressors, pumps, fans, heat exchangers, etc.) were identified and applied to current US HPWH products and analyzed to determine the viability of reaching the target EF. The target site-based energy factor (EF) required for an electric HPWH necessary to provide 30% source energy savings compared to the GTWH baseline unit is then determined to be ~3.19.

  4. Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?

    SciTech Connect (OSTI)

    Letschert, Virginie; McNeil, Michael A.; Zhou, Nan

    2009-05-18

    The time when energy-related carbon emissions come overwhelmingly from developed countries is coming to a close. China has already overtaken the United States as the world's leading emitter of greenhouse gas emissions. The economic growth that China has experienced is not expected to slow down significantly in the long term, which implies continued massive growth in energy demand. This paper draws on the extensive expertise from the China Energy Group at LBNL on forecasting energy consumption in China, but adds to it by exploring the dynamics of demand growth for electricity in the residential sector -- and the realistic potential for coping with it through efficiency. This paper forecasts ownership growth of each product using econometric modeling, in combination with historical trends in China. The products considered (refrigerators, air conditioners, fans, washing machines, lighting, standby power, space heaters, and water heating) account for 90percent of household electricity consumption in China. Using this method, we determine the trend and dynamics of demandgrowth and its dependence on macroeconomic drivers at a level of detail not accessible by models of a more aggregate nature. In addition, we present scenarios for reducing residential consumption through efficiency measures defined at the product level. The research takes advantage of an analytical framework developed by LBNL (BUENAS) which integrates end use technology parameters into demand forecasting and stock accounting to produce detailed efficiency scenarios, thus allowing for a technologically realistic assessment of efficiency opportunities specifically in the Chinese context.

  5. Market Power and Efficiency in a Computational Electricity Market With Discriminatory Double-Auction Pricing

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    electricity market operating in the short run under systematically varied concentration and capacity1 Market Power and Efficiency in a Computational Electricity Market With Discriminatory Double market, restructuring, repeated double auction, market power, efficiency, concentration, capacity

  6. Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks

    SciTech Connect (OSTI)

    Larry Slone; Jeffrey Birkel

    2007-10-31

    The Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks program (DE-FC26-04NT42189), commonly referred to as the AES program, focused on areas that will primarily benefit fuel economy and improve heat rejection while driving over the road. The AES program objectives were to: (1) Analyze, design, build, and test a cooling system that provided a minimum of 10 percent greater heat rejection in the same frontal area with no increase in parasitic fan load. (2) Realize fuel savings with advanced power management and acceleration assist by utilizing an integrated starter/generator (ISG) and energy storage devices. (3) Quantify the effect of aerodynamic drag due to the frontal shape mandated by the area required for the cooling system. The program effort consisted of modeling and designing components for optimum fuel efficiency, completing fabrication of necessary components, integrating these components into the chassis test bed, completing controls programming, and performance testing the system both on a chassis dynamometer and on the road. Emission control measures for heavy-duty engines have resulted in increased engine heat loads, thus introducing added parasitic engine cooling loads. Truck electrification, in the form of thermal management, offers technological solutions to mitigate or even neutralize the effects of this trend. Thermal control offers opportunities to avoid increases in cooling system frontal area and forestall reduced fuel economy brought about by additional aerodynamic vehicle drag. This project explored such thermal concepts by installing a 2007 engine that is compliant with current regulations and bears additional heat rejection associated with meeting these regulations. This newer engine replaced the 2002 engine from a previous project that generated less heat rejection. Advanced power management, utilizing a continuously optimized and controlled power flow between electric components, can offer additional fuel economy benefits to the heavy-duty trucking industry. Control software for power management brings added value to the power distribution and energy storage architecture on board a truck with electric accessories and an ISG. The research team has built upon a previous truck electrification project, formally, 'Parasitic Energy Loss Reduction and Enabling Technologies for Class 7/8 Trucks', DE-FC04-2000AL6701, where the fundamental concept of electrically-driven accessories replacing belt/gear-driven accessories was demonstrated on a Kenworth T2000 truck chassis. The electrical accessories, shown in Figure 1, were controlled to provide 'flow on demand' variable-speed operation and reduced parasitic engine loads for increased fuel economy. These accessories also provided solutions for main engine idle reduction in long haul trucks. The components and systems of the current project have been integrated into the same Kenworth T2000 truck platform. Reducing parasitic engine loading by decoupling accessory loads from the engine and driving them electrically has been a central concept of this project. Belt or gear-driven engine accessories, such as water pump, air conditioning compressor, or air compressor, are necessarily tied to the engine speed dictated by the current vehicle operating conditions. These conventional accessory pumps are sized to provide adequate flow or pressure at low idle or peak torque speeds, resulting in excess flow or pressure at cruising or rated speeds. The excess flow is diverted through a pressure-minimizing device such as a relief valve thereby expending energy to drive unnecessary and inefficient pump operation. This inefficiency causes an increased parasitic load to the engine, which leads to a loss of usable output power and decreased fuel economy. Controlling variable-speed electric motors to provide only the required flow or pressure of a particular accessory system can yield significant increases in fuel economy for a commercial vehicle. Motor loads at relatively high power levels (1-5 kW, or higher) can be efficiently provided

  7. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    energy efficiency improvement to eliminate the electricity deficit compared to a business as usual (BAU) supply-side

  8. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.

    2015-10-27

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  9. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G

    2015-11-06

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  10. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin (Kenosha, WI); Habetler, Thomas G. (Snellville, GA)

    2011-06-07

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  11. Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?

    E-Print Network [OSTI]

    Letschert, Virginie

    2010-01-01

    for 90% of household electricity consumption in China. Usinggives an annual electricity consumption of 12kWh assumingto look at is electricity consumption at the household

  12. Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?

    E-Print Network [OSTI]

    Letschert, Virginie

    2010-01-01

    with Residential Electricity Demand in India's Future - How2008). The Boom of Electricity Demand in the residential2005). Forecasting Electricity Demand in Developing

  13. Verification test of a 25kW class SOFC cogeneration system

    SciTech Connect (OSTI)

    Yokoyama, H.; Miyahara, A.; Veyo, S.E.

    1997-12-31

    Osaka Gas and Tokyo Gas have high expectations for natural-gas-fueled Solid Oxide Fuel Cell (SOFC) cogeneration systems. SOFC offers many advantages for on-site cogeneration systems, such as high electrical efficiency, high quality by-product heat and low emissions. They are now executing a joint development program with Westinghouse Electric Corporation (hereinafter called as WELCO). This program is aimed to verify a 25kW class SOFC cogeneration system. This system, which was modified by replacing previous zirconia porous support tube cells (PST cells) with newly designed air electrode supported cells (AES cells), commenced operation on March 21, 1995. The system has been successfully operated for 13,100 hours as of February 7, 1997. This paper presents the performance evaluation of the new AES cells and the results of system operation at WELCO.

  14. Tri-County Electric Cooperative- Energy Efficient Water Heater Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Tri-County Electric Cooperative offers a $75 rebate on the purchase of energy-efficient electric water heaters. The rebate is valid for new or replacement units which have an Energy Factor Rating...

  15. City of New Bern Electric Department- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The City of New Bern Electric Department offers rebates to its residential customers for installing new replacement energy efficient water heaters and heat pumps. Appliances must be electric and...

  16. Oil Field Electrical Energy Savings Through Energy-Efficient Motor Retrofits 

    E-Print Network [OSTI]

    Ula, S.; Bershinsky, V.; Cain, W.

    1995-01-01

    The Wyoming Electric Motor Training and Testing Center (WEMTTC), in conjunction with the Department of Energy-Denver Support Office and the Naval Petroleum Reserve #3 (NPR-3), has conducted an extensive study of electric motor efficiency...

  17. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    renewable energy and energy efficiency into a sustainableenergy sources and energy efficiency policy review: Therenewable electricity and energy-efficiency policy. Energy

  18. Salt River Electric- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Salt River Electric serves as the rural electric provider in Kentucky's Bullitt, Nelson, Spencer, and Washington counties. Residential customers are eligible for a variety of cash incentives for...

  19. Central Alabama Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Central Alabama Electric Cooperative, a Touchstone Electric Cooperative, offers the Touchstone Energy Home Program. Touchstone Energy Homes with a dual-fuel or geothermal heat pump qualify for...

  20. Cheyenne Light, Fuel and Power (Electric)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Cheyenne Light, Fuel and Power offers incentives to electric customers who wish to install energy efficient equipment in participating homes. Incentives are available for home energy audits, CFL...

  1. Cheyenne Light, Fuel and Power (Electric)- Commercial and Industrial Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Cheyenne Light, Fuel and Power offers incentives to commercial and industrial electric customers who wish to install energy efficient equipment and measures in eligible facilities. Incentives are...

  2. Pearl River Valley Electric Power Association- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Pearl River Valley Electric Power Association provides incentives through its Comfort Advantage Program to encourage energy efficiency within the residential sector. Rebates are available for heat...

  3. Evaluating Interventions in the U.S. Electricity System: Assessments of Energy Efficiency, Renewable Energy,

    E-Print Network [OSTI]

    of Energy Efficiency, Renewable Energy, and Small-Scale Cogeneration from electricity generation. Renewable energy, energy efficiency, and energy, where performance is measured relative to three objectives: energy production

  4. Hybrid and Plug-In Electric Vehicles (Spanish Version); Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    SciTech Connect (OSTI)

    2015-08-01

    This is a Spanish-language brochure about hybrid and plug-in electric vehicles, which use electricity as their primary fuel or to improve the efficiency of conventional vehicle designs. These vehicles can be divided into three categories: hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), all-electric vehicles (EVs). Together, they have great potential to cut U.S. petroleum use and vehicle emissions.

  5. Manufacturing Cost Analysis of 10 kW and 25 kW Direct Hydrogen...

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

    successful product commercialization. This report provides cost estimates for the manufacture of 10 kW and 25 kW polymer electrolyte membrane (PEM) fuel cells designed for...

  6. Energy efficiency of information transmission by electrically coupled neurons

    E-Print Network [OSTI]

    Francisco J. Torrealdea; Cecilia Sarasola; Alicia d'Anjou; Abdelmalik Moujahid; N. Vélez de Mendizábal

    2012-04-17

    The generation of spikes by neurons is energetically a costly process. This paper studies the consumption of energy and the information entropy in the signalling activity of a model neuron both when it is supposed isolated and when it is coupled to another neuron by an electrical synapse. The neuron has been modelled by a four dimensional Hindmarsh-Rose type kinetic model for which an energy function has been deduced. For the isolated neuron values of energy consumption and information entropy at different signalling regimes have been computed. For two neurons coupled by a gap junction we have analyzed the roles of the membrane and synapse in the contribution of the energy that is required for their organized signalling. Computational results are provided for cases of identical and nonidentical neurons coupled by unidirectional and bidirectional gap junctions. One relevant result is that there are values of the coupling strength at which the organized signalling of two neurons induced by the gap junction takes place at relatively low values of energy consumption and the ratio of mutual information to energy consumption is relatively high. Therefore, communicating at these coupling values could be energetically the most efficient option.

  7. Baltimore Gas & Electric Company (Gas)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The Baltimore Gas & Electric Company (BGE) offers Natural Gas Connection program to residential customers to switch from electric to natural gas for heat. The program waives connection charge (...

  8. Energy Efficiency Fund (Electric and Gas)- Residential New Construction Program

    Broader source: Energy.gov [DOE]

    The Energy Efficiency Fund offers a program designed to encourage the construction of energy efficient homes. The Residential New Construction Program offers incentives targeted at increasing...

  9. Market Power and Efficiency in a Computational Electricity Market With Discriminatory Double-Auction Pricing

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    to household, industry, or commercial users in a retail market. Short-run production efficiency in a wholesal1 Market Power and Efficiency in a Computational Electricity Market With Discriminatory Double electricity market operating in the short run under systematically varied concentration and capacity

  10. Principles and Efficient Implementation of Charge Replacement in Hybrid Electrical Energy Storage

    E-Print Network [OSTI]

    Pedram, Massoud

    1 Principles and Efficient Implementation of Charge Replacement in Hybrid Electrical Energy Storage energy generation and consumption rates are typ- ically not matched with each other. Electrical energy of the electrical energy, mitigate the supply-demand mismatch- es, and reduce the power generation capacity required

  11. Can Electricity pricing be a tool for efficient, equitable & sustainable use

    E-Print Network [OSTI]

    Scott, Christopher

    metering & consumption based electricity tariff o Objectives, approach & methods used in 3-location study o2/22/11 1 Can Electricity pricing be a tool for efficient, equitable & sustainable use with Policy San Francisco, California, USA 15-17 June, 2010 Scope of the Presentation o Modes of electricity

  12. Charge Migration Efficiency Optimization in Hybrid Electrical Energy Storage (HEES) Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    )-investment in the generation facilities. Electrical energy storage (EES) systems can thus increase power reliabilityCharge Migration Efficiency Optimization in Hybrid Electrical Energy Storage (HEES) Systems ABSTRACT Electrical energy is high-quality form of energy, and thus it is ben- eficial to store

  13. Ownership Change, Incentives and Plant Efficiency: The Divestiture of U.S. Electric Generation Plants

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    Ownership Change, Incentives and Plant Efficiency: The Divestiture of U.S. Electric Generation generating plants. Between 1998 and 2001, over 300 electric generating plants in the US, accounting Plants James B. Bushnell and Catherine Wolfram March 2005 Abstract Electric industry restructuring

  14. Southern Pine Electric Power Association- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Southern Pine Electric Power Association offers the Comfort Advantage Home Program which provides rebates on heat pumps to new homes which meet certain Comfort Advantage weatherization standards....

  15. Gunnison County Electric- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Gunnison County Electric Association (GCEA), a Touchstone Energy Cooperative, has a residential rebate program for eligible Energy Star appliances including clothes washers, dishwashers,...

  16. Cumberland Valley Electric Cooperative- Energy Efficiency and Renewable Energy Program

    Broader source: Energy.gov [DOE]

    Cumberland Valley Electric offers a number of programs to promote energy conservation. This program offers rebates for air source heat pumps, building insulation (including windows and doors), and...

  17. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    state-based renewable energy policies have significantlyin renewable electricity and energy-efficiency policy.s renewable energy sources and energy efficiency policy

  18. Market Integration, Efficiency, and Interconnectors: The Irish Single Electricity Market

    E-Print Network [OSTI]

    Nepal, Rabindra; Jamasb, Tooraj

    integration between SEM and other European markets and thereby raising the possibility to benefit from increased electricity trade. As wholesale prices in SEM remain relatively high and volatile; a larger interconnector capacity can promote competition, close...

  19. Electric Motor Maintenance & Repair for Long Term Efficiency 

    E-Print Network [OSTI]

    Brithinee, W. P.

    1997-01-01

    department, for example) may use microprocessor-based devices (for logic control); power electronics (for motor speed control); and specially-built electric motors. These devices may require different maintenance procedures than the equipment used in the past...

  20. Louisville Gas & Electric- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Louisville Gas and Electric (LGE) offers rebates to all commercial customers who pay a DSM charge on monthly bills. Rebates are available on lighting measures, sensors, air conditioners, heat pumps...

  1. Pee Dee Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Pee Dee Electric Cooperative offers a variety of programs for residential members to save energy in participating homes. Rebates are available for dual fuel heat pumps, geothermal heat pumps, and...

  2. Duke Energy (Electric)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The Smart $aver® program offers incentives for residential customers to increase their energy efficiency. Incentives are provided for qualifying heating and cooling equipment installation and...

  3. Duke Energy (Electric)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The Smart $aver® program offers incentives for residential customers to increase residential energy efficiency. Incentives are provided for qualifying heating and cooling equipment installation and...

  4. El Paso Electric Company- Residential Efficiency Program (New Mexico)

    Broader source: Energy.gov [DOE]

    EPE offers incentives to residential customers in its New Mexico service territory that purchase and install high efficiency equipment for residential use. Eligible equipment includes air...

  5. Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?

    E-Print Network [OSTI]

    Letschert, Virginie

    2010-01-01

    Urban Households Clothes Washer Color TV Refrigerator AC Fans per 100 households per 100 households Unit Energy Consumption Baseline and Efficiency

  6. Norwich Public Utilities (Electric)- Residential Energy Efficiency Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Norwich Public Utilities (NPU) provides residential customers with rebates on the ENERGY STAR-qualified appliances and energy efficient HVAC equipment. Eligible appliance purchases include...

  7. Energy Efficiency Fund (Electric and Gas) - Residential Energy...

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

    will provide a list of recommended energy efficiency upgrades along with a cost estimate. Information about rebates will also be provided at this time. 2. Apply for Financing...

  8. White River Valley Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The residential and commercial appliance and heating rebate program encourages members to purchase Energy Star equipment that qualifies under the White River energy efficiency program. Items...

  9. New Energy Efficiency Standards for Electric Motors and Walk...

    Energy Savers [EERE]

    Climate Action Plan, which called for efficiency standards that cut carbon pollution and save money by saving energy, the Energy Department today announced two new energy...

  10. National Grid (Electric) - Non-Residential Energy Efficiency...

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

    Name Utility Website https:www1.nationalgridus.comMyEnergyEfficiencyServices State New York Program Type Rebate Program Rebate Amount Custom Large Business Energy Initiative...

  11. Efficient Simulation and Reformulation of Lithium-Ion Battery Models for Enabling Electric Transportation

    E-Print Network [OSTI]

    Northrop, Paul W. C.

    Improving the efficiency and utilization of battery systems can increase the viability and cost-effectiveness of existing technologies for electric vehicles (EVs). Developing smarter battery management systems and advanced ...

  12. CoServ Electric Cooperative- Commercial Energy Efficient Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    CoServ Electric Cooperative provides rebates for commercial and industrial customers who upgrade to high efficiency lighting for the workplace. A rebate of $0.20/watt saved is available on interior...

  13. City of Statesville Electric Utility Department- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The City of Statesville Electric Utility Department offers rebates to its residential customers for installing new, energy efficient water heaters and heat pumps. To qualify for the heat pump...

  14. An International Survey of Electric Storage Tank Water Heater Efficiency and Standards

    SciTech Connect (OSTI)

    Johnson, Alissa; Lutz, James; McNeil, Michael A.; Covary, Theo

    2013-11-13

    Water heating is a main consumer of energy in households, especially in temperate and cold climates. In South Africa, where hot water is typically provided by electric resistance storage tank water heaters (geysers), water heating energy consumption exceeds cooking, refrigeration, and lighting to be the most consumptive single electric appliance in the home. A recent analysis for the Department of Trade and Industry (DTI) performed by the authors estimated that standing losses from electric geysers contributed over 1,000 kWh to the annual electricity bill for South African households that used them. In order to reduce this burden, the South African government is currently pursuing a programme of Energy Efficiency Standards and Labelling (EES&L) for electric appliances, including geysers. In addition, Eskom has a history of promoting heat pump water heaters (HPWH) through incentive programs, which can further reduce energy consumption. This paper provides a survey of international electric storage water heater test procedures and efficiency metrics which can serve as a reference for comparison with proposed geyser standards and ratings in South Africa. Additionally it provides a sample of efficiency technologies employed to improve the efficiency of electric storage water heaters, and outlines programs to promote adoption of improved efficiency. Finally, it surveys current programs used to promote HPWH and considers the potential for this technology to address peak demand more effectively than reduction of standby losses alone

  15. City of High Point Electric- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The City of High Point offers the Hometown Green Program to help customers reduce energy use. Under this program, rebates are available for newly constructed energy efficient homes, heat pumps, and...

  16. Opportunities for Efficiency Improvements in the U.S. Electricity Transmission and Distribution System

    SciTech Connect (OSTI)

    Jackson, Roderick K.; Onar, Omer C.; Kirkham, Harold; Fisher, Emily; Burkes, Klaehn; Starke, Michael R.; Mohammed, Olama; Weeks, George

    2015-04-01

    Since 2000, more than 172 quads of electricity have been transmitted on the US transmission and distribution (T&D) grid. Given this significant amount of energy flow, establishing and maintaining an efficient T&D grid is paramount. As shown in the figure below, the total percentage of overall losses in the US electric grid is approximately 6% (5.12% in 2012) (30% lower than the world average since 2000). While these efficiency losses appear to be relatively small from a percentage perspective, the total estimated electricity loss during this time is 10.8 quads.

  17. Electric Utility Energy Efficiency Programs | 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: AlternativeCommunication3-E Wholesale PowerExtensionEhron DocumentsElectric Utility Energy

  18. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    such as natural or biogas fired gensets, to compensate forwind turbines, five 80 kW biogas engines, a 250 kW MCFC, and

  19. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    kW and 300 kW Molten Carbonate Fuel Cells (MCFC), four 200kilovolt kilowatt molten carbonate fuel cell megawatt

  20. Highly-Efficient Thermoelectronic Conversion of Solar Energy and Heat into Electric Power

    E-Print Network [OSTI]

    Meir, S; Geballe, T H; Mannhart, J

    2013-01-01

    Electric power may, in principle, be generated in a highly efficient manner from heat created by focused solar irradiation, chemical combustion, or nuclear decay by means of thermionic energy conversion. As the conversion efficiency of the thermionic process tends to be degraded by electron space charges, the efficiencies of thermionic generators have amounted to only a fraction of those fundamentally possible. We show that this space-charge problem can be resolved by shaping the electric potential distribution of the converter such that the static electron space-charge clouds are transformed into an output current. Although the technical development of practical generators will require further substantial efforts, we conclude that a highly efficient transformation of heat to electric power may well be achieved.

  1. Central Hudson Gas & Electric (Gas) - Commercial Energy Efficiency Program

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a lCaribElectricSouthApplying caulk to a DanielPrograms || Department

  2. Energy efficiency of information transmission by electrically coupled neurons

    E-Print Network [OSTI]

    Torrealdea, Francisco J; d'Anjou, Alicia; Moujahid, Abdelmalik; de Mendizábal, N Vélez; 10.1016/j.biosystems.2009.04.004

    2012-01-01

    The generation of spikes by neurons is energetically a costly process. This paper studies the consumption of energy and the information entropy in the signalling activity of a model neuron both when it is supposed isolated and when it is coupled to another neuron by an electrical synapse. The neuron has been modelled by a four dimensional Hindmarsh-Rose type kinetic model for which an energy function has been deduced. For the isolated neuron values of energy consumption and information entropy at different signalling regimes have been computed. For two neurons coupled by a gap junction we have analyzed the roles of the membrane and synapse in the contribution of the energy that is required for their organized signalling. Computational results are provided for cases of identical and nonidentical neurons coupled by unidirectional and bidirectional gap junctions. One relevant result is that there are values of the coupling strength at which the organized signalling of two neurons induced by the gap junction take...

  3. 40 kW Stirling engine for solid fuel

    SciTech Connect (OSTI)

    Carlsen, H.; Ammundsen, N.; Traerup, J.

    1996-12-31

    The external combustion in a Stirling engine makes it very attractive for utilization of solid fuels in decentralized combined heat and power (CHP) plants. Only few projects have concentrated on the development of Stirling engines specifically for biomass. In this project a Stirling engine has been designed primarily for utilization of wood chips. Maximum shaft power is 40 kW corresponding to an electric output of 36 kW. Biomass needs more space in the combustion chamber compared to gas and liquid fuels, and a large heat transfer area is necessary. The design of the new Stirling engine has been adapted to the special demands of combustion of wood chips, resulting in a large engine compared to engines for gas or liquid fuels. The engine has four-cylinders arranged in a square. The design is made as a hermetic unit, where the alternator is built into the pressurized crankcase so that dynamic seals are avoided. Grease lubricated bearings are used in a special designed crank mechanism, which eliminates guiding forces on the pistons Helium is used as working gas at 4 MPa mean pressure. The first test of the 40 kW engine with natural gas as fuel has been made in the laboratory, and the results are in agreement with predicted results from simulation programs. The wood chips combustion system has been tested for some time with very promising results. When the laboratory test of the engine is finished, the test of the complete system will be initiated. The paper describes the engine and results from the test program. Expectations to maintenance and operation problems are also discussed.

  4. Design considerations of a 15kW heat exchanger for the CSPonD Project

    E-Print Network [OSTI]

    Adames, Adrian A

    2010-01-01

    The objective of this work was to develop a 15 kW heat exchanger model for the CSPonD molten salt receiver that will shuttle the molten salt's thermal energy for conversion to electric power. A heat extraction system ...

  5. Electric coheating as a means to test duct efficiency: A review and analysis of the literature

    SciTech Connect (OSTI)

    Andrews, J.W.

    1995-08-01

    Recent published literature on electric coheating was reviewed in order to assess its suitability for use in a method of test for the efficiency of residential duct systems. Electric coheating is the research use of electric heaters within the heated space to assess the thermal integrity of the building envelope. Information was sought in two primary areas: (1) experimental methodology and (2) accuracy of the coheating method. A variety of experimental variations was found, and the method was judged, on the basis of published data, to be capable of sufficient accuracy for use in duct testing.

  6. Efficient, High-Torque Electric Vehicle Motor: Advanced Electric Vehicle Motors with Low or No Rare Earth Content

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: QM Power will develop a new type of electric motor with the potential to efficiently power future generations of EVs without the use of rare-earth-based magnets. Many of today’s EV motors use rare earth magnets to efficiently provide torque to the wheels. QM Power’s motors would contain magnets that use no rare earth minerals, are light and compact, and can deliver more power with greater efficiency and at reduced cost. Key innovations in this project include a new motor design with iron-based magnetic materials, a new motor control technique, and advanced manufacturing techniques that substantially reduce the cost of the motor. The ultimate goal of this project is to create a cost-effective EV motor that offers the rough peak equivalent of 270 horsepower.

  7. Electricity Regulatory Reforms to Encourage Energy Efficiency: What Air Regulators and Energy Officials Need to Know

    Office of Energy Efficiency and Renewable Energy (EERE)

    This presentation by Chris James and Doug Hurley of Synapse Energy Economics, Inc., was part of the July 2008 Webcast sponsored by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Weatherization and Intergovernmental Program Clean Energy and Air Quality Integration Initiative that was titled Role of Energy Efficiency and Renewable Energy in Improving Air Quality and Addressing Greenhouse Gas Reduction Goals on High Electric Demand Days.

  8. The Boom of Electricity Demand in the Residential Sector in the Developing World and the Potential for Energy Efficiency

    E-Print Network [OSTI]

    Letschert, Virginie

    2010-01-01

    SAS-PAS Electric Water Heating UEC (kWh) 13 Reference (Jannuzzi G. 2005) (SAS+PAS Other Average Efficiency Base Case Reference Voice Mag. (oct 2005) (

  9. Kaman 40-kW wind system. Phase II. Fabrication and tests. Volume II. Technical report

    SciTech Connect (OSTI)

    Howes, H; Perley, R

    1981-01-01

    A program is underway to design, fabricate and test a horizontal axis Wind Turbine Generator (WTG) capable of producing 40 kW electrical output power in a 20 mph wind. Results are presented of the program effort covering fabrication and testing of the Wing Turbine Generator designed earlier. A minimum of difficulties were experienced during fabrication and, after successful completion of Contractor tests through 20 mph winds, the WTG was shipped to Rocky Flats, assembled and operated there. The 40 kW WTG is presently undergoing extended tests at Rockwell's Rocky Flats test facility.

  10. Method for computing efficient electrical indicators for offshore wind turbine monitoring

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    by offshore deployment of wind farms. The offshore turbines have much lower accessibility(1) so maintenanceMethod for computing efficient electrical indicators for offshore wind turbine monitoring Georgia.cablea, pierre.granjon, christophe.berenguer} @gipsa-lab.grenoble-inp.fr Abstract Offshore wind turbines

  11. 2006 IEEE Electrical Performance of Electronic Packaging Efficient Modeling of Package Power Delivery Networks with

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    73 2006 IEEE Electrical Performance of Electronic Packaging Efficient Modeling of Package Power* and Madhavan Swaminathan+ Kazuhide Uriu1 and Toru Yamada2 Packaging Research Centre EMC Design Group School are computationally expensive given the complexity of packaging structures in modern mixed signal systems. Fast

  12. Power to the Plug: An Introduction to Energy, Electricity, Consumption and Efficiency

    SciTech Connect (OSTI)

    DOE / EERE / NEED Project

    2011-06-07

    The NEED Project and the U.S. Department of Energy have collaborated to bring you this educational four-page guide to energy, electricity, consumption and efficiency. It includes, on the last page, a home energy survey to help you analyze your home energy use.

  13. Evaluating Interventions in the U.S. Electricity System: Assessments of Energy Efficiency, Renewable Energy,

    E-Print Network [OSTI]

    on to explore regional variations in the performance of wind turbines and solar panels of an additional wind turbine or solar panel in the U.S. electricity system. I find of Energy Efficiency, Renewable Energy, and Small-Scale Cogeneration

  14. Energy efficiency of electric vehicles at the 1994 American Tour de Sol

    SciTech Connect (OSTI)

    Quong, S.; Duoba, M.; Buitrago, C.; LeBlanc, N.; Larsen, R.

    1994-11-01

    In 1994, the US Department of Energy, through Argonne National Laboratory`s Center for Transportation Research, sponsored energy-efficiency data collection from student, private, and professional electric vehicles during the American Tour de Sol (ATdS). The ATDS is a multiple-day road rally event, from New York City to Philadelphia. During each leg of the event, kilowatt-hour meters measured the efficiency of the electric vehicles (EVs), which averaged from 5.68 to 65.74 km/kWh. In addition to daily energy-usage measurements, some vehicles used a data-acquisition unit to collect second-by-second information. This showed, in one case, that 21% of the total energy was captured in regenerative braking. Some of the vehicles were also tested on a dynamometer for energy-efficiency, acceleration, and steady-state power ratings. This paper also compares the energy efficiency of the vehicles during the road rally to the dynamometer results. In almost all vehicles, there was an increase in energy efficiency when the vehicle was traveling over the road, due to the non-transient duty cycle and efficient driving techniques. The dynamometer testing also showed that some EVs are equal to or better than gasoline vehicles in performance and efficiency.

  15. Estimates of achievable potential for electricity efficiency improvements in U.S. residences

    SciTech Connect (OSTI)

    Brown, Richard

    1993-05-01

    This paper investigates the potential for public policies to achieve electricity efficiency improvements in US residences. This estimate of achievable potential builds upon a database of energy-efficient technologies developed for a previous study estimating the technical potential for electricity savings. The savings potential and cost for each efficiency measure in the database is modified to reflect the expected results of policies implemented between 1990 and 2010. Factors included in these modifications are: the market penetration of efficiency measures, the costs of administering policies, and adjustments to the technical potential measures to reflect the actual energy savings and cost experienced in the past. When all adjustment factors are considered, this study estimates that policies can achieve approximately 45% of the technical potential savings during the period from 1990 to 2010. Thus, policies can potentially avoid 18% of the annual frozen-efficiency baseline electricity consumption forecast for the year 2010. This study also investigates the uncertainty in best estimate of achievable potential by estimating two alternative scenarios -- a

  16. Potential Benefits from Improved Energy Efficiency of KeyElectrical Products: The Case of India

    SciTech Connect (OSTI)

    McNeil, Michael; Iyer, Maithili; Meyers, Stephen; Letschert,Virginie; McMahon, James E.

    2005-12-20

    The goal of this project was to estimate the net benefits that cost-effective improvements in energy efficiency can bring to developing countries. The study focused on four major electrical products in the world's second largest developing country, India. These products--refrigerators, room air conditioners, electric motors, and distribution transformers--are important targets for efficiency improvement in India and in other developing countries. India is an interesting subject of study because of it's size and rapid economic growth. Implementation of efficient technologies in India would save billions in energy costs, and avoid hundreds of megatons of greenhouse gas emissions. India also serves as an example of the kinds of improvement opportunities that could be pursued in other developing countries.

  17. The added economic and environmental value of plug-in electric vehicles connected to commercial building microgrids

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    building has a peak electricity demand of 373 kW, and yearlyWinter (Nov. – Apr. ) )Electricity electricity demandelectricity demand (US$/kWh) (US$/kW) (US$/kWh) (US $/kW)

  18. DATE : NVLAP LAB CODE: NVLAP EFFICIENCY OF ELECTRIC MOTORS APPLICATION (REV. 2013-06-11) PAGE 1 OF 1

    E-Print Network [OSTI]

    DATE : NVLAP LAB CODE: NVLAP EFFICIENCY OF ELECTRIC MOTORS APPLICATION (REV. 2013-06-11) PAGE 1 OF 1 EFFICIENCY OF ELECTRIC MOTORS TEST METHOD SELECTION LIST Instructions: Check each test method01* IEEE 112 Method B Test Procedure for Polyphase Induction Motors and Generators (for accreditation

  19. Electricity Demand-Side Management for an Energy Efficient Future in China: Technology Options and Policy Priorities

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Neufville Professor of Engineering Systems Chair, ESD Education Committee #12;2 #12;3 Electricity DemandElectricity Demand-Side Management for an Energy Efficient Future in China: Technology Options: ______________________________________________________________ : Stephen R. Connors Director, Analysis Group for Regional Electricity Alternatives Thesis Supervisor

  20. Electricity end-use efficiency: Experience with technologies, markets, and policies throughout the world

    SciTech Connect (OSTI)

    Levine, M.D.; Koomey, J.; Price, L. [Lawrence Berkeley Lab., CA (United States); Geller, H.; Nadel, S. [American Council for an Energy-Efficient Economy, Washington, DC (United States)

    1992-03-01

    In its August meeting in Geneva, the Energy and Industry Subcommittee (EIS) of the Policy Response Panel of the Intergovernmental Panel on Climate Change (IPCC) identified a series of reports to be produced. One of these reports was to be a synthesis of available information on global electricity end-use efficiency, with emphasis on developing nations. The report will be reviewed by the IPCC and approved prior to the UN Conference on Environment and Development (UNCED), Brazil, June 1992. A draft outline for the report was submitted for review at the November 1991 meeting of the EIS. This outline, which was accepted by the EIS, identified three main topics to be addressed in the report: status of available technologies for increasing electricity end-use efficiency; review of factors currently limiting application of end-use efficiency technologies; and review of policies available to increase electricity end-use efficiency. The United States delegation to the EIS agreed to make arrangements for the writing of the report.

  1. Development of a 10 kW, 2.815 GHz Klystron

    SciTech Connect (OSTI)

    Ives, Robert Lawrence; Read, Michael; Patrick, Ferguson

    2015-05-15

    Development of a Periodic Permanent Magnet (PPM) focused klystron is described. The klystron was designed to produce 10 kW CW at 2.815 GHz. The program developed an innovative PPM circuit that provided extremely uniform magnetic fields at the electron beam location while providing unprecedented access to the RF circuit for tuners and water cooling. Simulations indicated the klystron would produce more than 11 kW with an efficiency exceeding 65%. Problems with the mechanical design prevented successful testing of the initial prototype; however, a new design was successfully developed and implemented in a 6 MW klystron developed in a follow-on program. Funding is being pursued to rebuild the 10 kW RF circuit and complete the klystron development.

  2. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    SciTech Connect (OSTI)

    Sathaye, Jayant; Gupta, Arjun

    2010-04-30

    Electricity demand has consistently exceeded available supply in India. While the electricity deficit varies across states, nationally it was estimated to be of the order of 12percent on peak and 11percent for electricity during 2008-09. This paper explores a demand-side focused potential for energy efficiency improvement to eliminate the electricity deficit compared to a business as usual (BAU) supply-side focused scenario. The limited availability of finance and other legal and administrative barriers have constrained the construction of new power plant capacity in India. As a result, under the BAU scenario, India continues to face an electricity deficit beyond the end of the Twelfth Five Year Plan. The demand-side cost-effective potential achieved through replacement of new electricity-using products, however, is large enough to eliminate the deficit as early as 2013 and subsequently reduce the future construction of power plants and thus reduce air pollutant emissions. Moreover, energy efficiency improvements cost a fraction of the cost for new supply and can lead to a substantial increase in India's economic output or gross domestic product (GDP). Eliminating the deficit permits businesses that have experienced electricity cutbacks to restore production. We estimate the size of the cumulative production increase in terms of the contribution to GDP at a $505 billion between 2009 and 2017, the end of India's Twelfth Five Year Plan, which may be compared with India's 2007-08 GDP of $911 billion. The economic output is influenced by the size of the electricity savings and rate of penetration of energy efficient technologies, and that of self-generation equipment and inverters used by businesses faced with electricity cuts. Generation and inverters are estimated to service 23percent of these customers in 2009, which increase to 48percent by 2020. The reduction in the construction and operation of new power plants reduces the cumulative CO2 emissions by 65 Mt, and those of sulfur dioxide and nitrogen oxides by 0.4 Mt each, while also reducing India's imports of coal and natural gas. By 2020, the cumulative GDP benefit increases to $608 billion, the CO2 savings expand to 333 Mt and SO2 and NOx to 2.1 Mt.

  3. Conversion Tower for Dispatchable Solar Power: High-Efficiency Solar-Electric Conversion Power Tower

    SciTech Connect (OSTI)

    2012-01-11

    HEATS Project: Abengoa Solar is developing a high-efficiency solar-electric conversion tower to enable low-cost, fully dispatchable solar energy generation. Abengoa’s conversion tower utilizes new system architecture and a two-phase thermal energy storage media with an efficient supercritical carbon dioxide (CO2) power cycle. The company is using a high-temperature heat-transfer fluid with a phase change in between its hot and cold operating temperature. The fluid serves as a heat storage material and is cheaper and more efficient than conventional heat-storage materials, like molten salt. It also allows the use of a high heat flux solar receiver, advanced high thermal energy density storage, and more efficient power cycles.

  4. Status of the Advanced Stirling Conversion System Project for 25 kW dish Stirling applications

    SciTech Connect (OSTI)

    Shaltens, R.K.; Schreiber, J.G.

    1991-01-01

    Under the Department of Energy's (DOE) Solar Thermal Technology Program, Sandia National Laboratories is evaluating heat engines for terrestrial Solar Heat Receivers. The Stirling engine has been identified by Sandia as one of the most promising heat engines for terrestrial applications. The Stirling engine also has the potential to meet DOE's performance and cost goals. The NASA Lewis Research Center is conducting technology development for Stirling convertors directed toward a dynamic power source for space applications. Space power requirements include high reliability with very long life, low vibration and high system efficiency. The free-piston Stirling engine has the potential for future high power space conversion systems, either nuclear or solar powered. Although both applications appear to be quite different, their requirements complement each other. NASA Lewis is providing management of the Advanced Stirling Conversion System (ASCS) Project through an Interagency Agreement (IAA) with the DOE. Parallel contracts continue with both Cummins Engine Company (CEC), Columbus, Indiana, and Stirling Technology Company (STC), Richland, Washington for the designs of an ASCS. Each system'' design features a solar receiver/liquid metal heat transport system, and a free-piston Stirling convertor with a means to provide nominally 25 kW of electric power to a utility grid while meeting DOE's performance and long-term'' cost goals. The Cummins free- piston Stirling convertor incorporates a linear alternator to directly provide the electrical output, while the STC design generates electrical power indirectly through a hydraulic pump/motor coupled to an induction generator. Both the Cummins and STC ASCS designs will use technology which can reasonably be expected to be available in the early 1990's. 17 refs., 7 figs., 3 tabs.

  5. Effect of Heat and Electricity Storage and Reliability on Microgrid Viability: A Study of Commercial Buildings in California and New York States

    E-Print Network [OSTI]

    Stadler, Michael

    2009-01-01

    charging kW Utility electricity consumption Electricityis expressed in electricity consumption of the electricis expressed in electricity consumption of the electric

  6. Low cost, compact high efficiency, traction motor for electric vehicles/hybrid electric vehicles. Final report for the period September 1998 - December 1999

    SciTech Connect (OSTI)

    Mitchell, Jerry; Kessinger, Roy

    2000-04-28

    This final report details technical accomplishments for Phase I of the ''Low Cost, Compact High Efficiency, Traction Motor for Electric Vehicles/Hybrid Electric Vehicles'' program. The research showed that the segmented-electromagnetic array (SEMA) technology combined with an Integrated Motion Module (IMM) concept is highly suited for electric vehicles. IMMs are essentially mechatronic systems that combine the motor, sensing, power electronics, and control functions for a single axis of motion into a light-weight modular unit. The functional integration of these components makes possible significant reductions in motor/alternator size, weight, and cost, while increasing power density and electromechanical conversion efficiency.

  7. OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY (OE)

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

    generators ranging in size from 100 kW to 240 kW are scheduled to arrive Saipan from Hawaii August 10. Saipan Power Plants & Electric Statistics Location Power Plant Nameplate...

  8. Development of a Novel Efficient Solid-Oxide Hybrid for Co-generation of Hydrogen and Electricity Using Nearby Resources for Local Application

    SciTech Connect (OSTI)

    Tao, Greg, G.; Virkar, Anil, V.; Bandopadhyay, Sukumar; Thangamani, Nithyanantham; Anderson, Harlan, U.; Brow, Richard, K.

    2009-06-30

    Developing safe, reliable, cost-effective, and efficient hydrogen-electricity co-generation systems is an important step in the quest for national energy security and minimized reliance on foreign oil. This project aimed to, through materials research, develop a cost-effective advanced technology cogenerating hydrogen and electricity directly from distributed natural gas and/or coal-derived fuels. This advanced technology was built upon a novel hybrid module composed of solid-oxide fuel-assisted electrolysis cells (SOFECs) and solid-oxide fuel cells (SOFCs), both of which were in planar, anode-supported designs. A SOFEC is an electrochemical device, in which an oxidizable fuel and steam are fed to the anode and cathode, respectively. Steam on the cathode is split into oxygen ions that are transported through an oxygen ion-conducting electrolyte (i.e. YSZ) to oxidize the anode fuel. The dissociated hydrogen and residual steam are exhausted from the SOFEC cathode and then separated by condensation of the steam to produce pure hydrogen. The rationale was that in such an approach fuel provides a chemical potential replacing the external power conventionally used to drive electrolysis cells (i.e. solid oxide electrolysis cells). A SOFC is similar to the SOFEC by replacing cathode steam with air for power generation. To fulfill the cogeneration objective, a hybrid module comprising reversible SOFEC stacks and SOFC stacks was designed that planar SOFECs and SOFCs were manifolded in such a way that the anodes of both the SOFCs and the SOFECs were fed the same fuel, (i.e. natural gas or coal-derived fuel). Hydrogen was produced by SOFECs and electricity was generated by SOFCs within the same hybrid system. A stand-alone 5 kW system comprising three SOFEC-SOFC hybrid modules and three dedicated SOFC stacks, balance-of-plant components (including a tailgas-fired steam generator and tailgas-fired process heaters), and electronic controls was designed, though an overall integrated system assembly was not completed because of limited resources. An inexpensive metallic interconnects fabrication process was developed in-house. BOP components were fabricated and evaluated under the forecasted operating conditions. Proof-of-concept demonstration of cogenerating hydrogen and electricity was performed, and demonstrated SOFEC operational stability over 360 hours with no significant degradation. Cost analysis was performed for providing an economic assessment of the cost of hydrogen production using the targeted hybrid technology, and for guiding future research and development.

  9. Case History of Reapplication of a 2500 KW Steam Turbine/Gear Drive Generator 

    E-Print Network [OSTI]

    Smith, S.

    1991-01-01

    OF REAPPLICATION OF A 2500 KW STEAM TURBINE/GEAR DRIVE GENERATOR SAMUEL V. SMITH Manager, Technical Sales and ~ervice Revak Turbomachinery SerVlces La Porte, Texas Abstract In today' s equipment market more and more projects are turning toward..., naphtha and a high grade of wax. The plant requires a steam turbine generator set to produce electrical power for its base load operation. This paper covers the history of how the turbine, gear and generator were selected, along with the highlights...

  10. McDonnell 40-kW Giromill Wind System. Phase II. Fabrication and test

    SciTech Connect (OSTI)

    Brulle, R

    1980-06-01

    A 40 kW vertical axis windmill called a ''Giromill'' was fabricated, erected, and tested. The system design is described as well as some design changes made during fabrication. Manufacturing cost estimates are updated. Fabrication of the turbine blades, support arms, and fixed and rotating tower is described as well as the tests. Testing included control systems acceptance tests; Giromill system acceptance tests; structural, mechanical, control system and electric generation operational tests; and performance tests connected to the utility grid. (LEW)

  11. High-Efficiency Solar Cells for Large-Scale Electricity Generation & Design Considerations for the Related Optics (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Olson, J.; Geisz, J.; Friedman, D.; McMahon, W.; Ptak, A.; Wanlass, M.k; Kibbler, A.; Kramer, C.; Ward, S.; Duda, A.; Young, M.; Carapella, J.

    2007-09-17

    The photovoltaic industry has been growing exponentially at an average rate of about 35%/year since 1979. Recently, multijunction concentrator cell efficiencies have surpassed 40%. Combined with concentrating optics, these can be used for electricity generation.

  12. Restructuring, Ownership and Efficiency: The Case of Labor in Electricity Generation

    E-Print Network [OSTI]

    Shanefelter, Jennifer Kaiser

    2007-01-01

    inputs to electricity generation: fuel, capital, materialsand labor. Electricity generation is a fuel-intensive

  13. *ASHRAE is a national organization focused on building energy and the built environment that provides baseline energy efficiency guidelines for use in building design and construction.

    E-Print Network [OSTI]

    Gunawardena, Jeremy

    : · An 80kW rooftop solar photovoltaic installation uses 320 AC modules to produce electricity for use solar capacity on campus). ENERGY EFFICIENCY: · A 37-foot-tall double-skin glass wall uses two vented each solar panel ­ a technology that allows HBS to maximize the output of each panel

  14. Highly Efficient Midinfrared On-Chip Electrical Generation of Graphene Plasmons by Inelastic Electron Tunneling Excitation

    E-Print Network [OSTI]

    Ooi, Kelvin J A; Hsieh, Chang Yu; Tan, Dawn T H; Ang, Lay Kee

    2015-01-01

    Inelastic electron tunneling provides a low-energy pathway for the excitation of surface plasmons and light emission. We theoretically investigate tunnel junctions based on metals and graphene. We show that graphene is potentially a highly efficient material for tunneling excitation of plasmons because of its narrow plasmon linewidths, strong emission, and large tunability in the midinfrared wavelength regime. Compared to gold and silver, the enhancement can be up to 10 times for similar wavelengths and up to 5 orders at their respective plasmon operating wavelengths. Tunneling excitation of graphene plasmons promises an efficient technology for on-chip electrical generation and manipulation of plasmons for graphene-based optoelectronics and nanophotonic integrated circuits.

  15. Ultra-Efficient and Power Dense Electric Motors for U. S. Industry

    SciTech Connect (OSTI)

    Melfi, Michael J.; Schiferl, Richard F.; Umans, Stephen D.

    2013-03-12

    The primary purpose of this project was to combine the ease-of-installation and ease-of-use attributes of industrial induction motors with the low-loss and small size and weight advantages of PM motors to create an ultra-efficient, high power density industrial motor that can be started across-the-line or operated from a standard, Volts/Hertz drive without the need for a rotor position feedback device. PM motor products that are currently available are largely variable speed motors that require a special adjustable speed drive with rotor position feedback. The reduced size and weight helps to offset the magnet cost in order make these motors commercially viable. The scope of this project covers horsepower ratings from 20 ? 500. Prototypes were built and tested at ratings ranging from 30 to 250 HP. Since fans, pumps and compressors make up a large portion of industrial motor applications, the motor characteristics are tailored to those applications. Also, since there is extensive use of adjustable frequency inverters in these applications, there is the opportunity to design for an optimal pole number and operate at other than 60 Hz frequency when inverters are utilized. Designs with four and eight pole configurations were prototyped as part of this work. Four pole motors are the most commonly used configuration in induction motors today. The results of the prototype design, fabrication, and testing were quite successful. The 50 HP rating met all of the design goals including efficiency and power density. Tested values of motor losses at 50 HP were 30% lower than energy efficient induction motors and the motor weight is 35% lower than the energy efficient induction motor of the same rating. Further, when tested at the 30 HP rating that is normally built in this 286T frame size, the efficiency far exceeds the project design goals with 30 HP efficiency levels indicating a 55% reduction in loss compared to energy efficient motors with a motor weight that is a few percentage points lower than the energy efficient motor. This 30 HP rating full load efficiency corresponds to a 46% reduction in loss compared to a 30 HP NEMA Premium? efficient motor. The cost goals were to provide a two year or shorter efficiency-based payback of a price premium associated with the magnet cost in these motors. That goal is based on 24/7 operation with a cost of electricity of 10 cents per kW-hr. Similarly, the 250 HP prototype efficiency testing was quite successful. In this case, the efficiency was maximized with a slightly less aggressive reduction in active material. The measured full load efficiency of 97.6% represents in excess of a 50% loss reduction compared to the equivalent NEMA Premium Efficiency induction motor. The active material weight reduction was a respectable 14.5% figure. This larger rating demonstrated both the scalability of this technology and also the ability to flexibly trade off power density and efficiency. In terms of starting performance, the 30 ? 50 HP prototypes were very extensively tested. The demonstrated capability included the ability to successfully start a load with an inertia of 25 times the motor?s own inertia while accelerating against a load torque following a fan profile at the motor?s full nameplate power rating. This capability will provide very wide applicability of this motor technology. The 250 HP prototype was also tested for starting characteristics, though without a coupled inertia and load torque. As a result it was not definitively proven that the same 25 times the motor?s own inertia could be started and synchronized successfully at 250 HP. Finite element modeling implies that this load could be successfully started, but it has not yet been confirmed by a test.

  16. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    of Value Added and Electricity Consumption Data.. 10and per capita electricity consumption have increased slowerPlan Per Capita Electricity Consumption Source: Planning

  17. Ownership Change, Incentives and Plant Efficiency: The Divestiture of U.S. Electric Generation Plants

    E-Print Network [OSTI]

    Bushnell, James B.; Wolfram, Catherine

    2005-01-01

    ciency of Electric Generating Plants: A Stochastic Frontierthe existing stock of electricity generating plants. Betweenover 300 electric generating plants in the US, accounting

  18. Public Health Benefits of End-Use Electrical Energy Efficiency in California: An Exploratory Study

    E-Print Network [OSTI]

    McKone, Thomas E.

    2011-01-01

    j designates the plant generating electricity from apowered electricity generating plants in a) urban and b)from electricity generating plants in California. Exposure

  19. Investment Efficiency in Competitive Electricity Markets With and Without Time-Varying Retail Prices

    E-Print Network [OSTI]

    Borenstein, Severin; Holland, Stephen P.

    2002-01-01

    and Demand Response in Electricity Markets, October 2002.Kleit. “Metering in Electricity Markets: Should It Be En-in Competitive Electricity Markets With and Without Time-

  20. On the Efficiency of Competitive Electricity Markets With Time-Invariant Retail Prices

    E-Print Network [OSTI]

    Borenstein, Severin; Holland, Stephen P.

    2003-01-01

    Andrew Kleit, “Metering in Electricity Markets: When is Moreand De- mand Response in Electricity Markets, October 2002.of Competitive Electricity Markets With Time-Invariant

  1. Vertical Integration in Restructured Electricity Markets: Measuring Market Efficiency and Firm Conduct

    E-Print Network [OSTI]

    Mansur, Erin T.

    2003-01-01

    of the New Jersey Electricity Market,” New Jersey Board ofWholesale Electricity Market,” American Economic Review, 92(of the New England Electricity Market,” CSEM Working Paper

  2. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    S. Das, (2006) Reducing Electricity Deficit through EnergyLV supply. Figure 12: Electricity Productivity (Commercialan interesting result. The electricity productivity in both

  3. The Impact of Energy Efficiency and Demand Response Programs on the U.S. Electricity Market

    SciTech Connect (OSTI)

    Baek, Young Sun; Hadley, Stanton W

    2012-01-01

    This study analyzes the impact of the energy efficiency (EE) and demand response (DR) programs on the grid and the consequent level of production. Changes in demand caused by EE and DR programs affect not only the dispatch of existing plants and new generation technologies, the retirements of old plants, and the finances of the market. To find the new equilibrium in the market, we use the Oak Ridge Competitive Electricity Dispatch Model (ORCED) developed to simulate the operations and costs of regional power markets depending on various factors including fuel prices, initial mix of generation capacity, and customer response to electricity prices. In ORCED, over 19,000 plant units in the nation are aggregated into up to 200 plant groups per region. Then, ORCED dispatches the power plant groups in each region to meet the electricity demands for a given year up to 2035. In our analysis, we show various demand, supply, and dispatch patterns affected by EE and DR programs across regions.

  4. A Development Path to the Efficient and Cost-Effective Bulk Storage of Electrical Energy

    SciTech Connect (OSTI)

    Post, R F

    2009-09-24

    Efficient and cost-effective means for storing electrical energy is becoming an increasing need in our electricity-oriented society. For example, for electric utilities an emerging need is for distributed storage systems, that is, energy storage at substations, at solar or wind-power sites, or for load-leveling at the site of major consumers of their electricity. One of the important consequences of distributed storage for the utilities would be the reduction in transmission losses that would result from having a local source of load-leveling power. For applications such as these there are three criteria that must be satisfied by any new system that is developed to meet such needs. These criteria are: (1) high 'turn-around' efficiency, that is, high efficiency of both storing and recovering the stored energy in electrical form, (2) long service life (tens of years), with low maintenance requirements, and, (3) acceptably low capital cost. An additional requirement for these particular applications is that the system should have low enough standby losses to permit operation on a diurnal cycle, that is, storing the energy during a portion of a given day (say during sunlight hours) followed several hours later by its use during night-time hours. One answer to the spectrum of energy storage needs just outlined is the 'electromechanical battery'. The E-M battery, under development for several years at the Laboratory and elsewhere in the world, has the potential to solve the above energy storage problems in a manner superior to the electro-chemical battery in the important attributes of energy recovery efficiency, cycle lifetime, and amortized capital cost. An electromechanical battery is an energy storage module consisting of a high-speed rotor, fabricated from fiber composite, and having an integrally mounted generator/motor. The rotor operates at high speed, in vacuo, inside of a hermetically sealed enclosure, supported by a 'magnetic bearing', that is, a bearing that uses magnetic forces to support the rotor against gravity. Magnetic bearings are a virtual necessity for the E-M battery in order to achieve long service life, and to minimize frictional losses so that the battery does not lose its charge (run down) too rapidly. These considerations mitigate against the use of conventional mechanical bearings in the E-M battery for most applications. The Laboratory has pioneered the development of a new form of magnetic bearing to meet the special requirements of the E-M battery: the 'ambient-temperature passive magnetic bearing'. Simpler, and potentially much less expensive than the existing 'active' magnetic bearings (ones requiring electronic amplifiers and feedback circuits for their operation) development of the ambient-temperature passive magnetic bearing represents a technological breakthrough. Beyond its use in the E-M battery, the ambient-temperature magnetic bearing could have important applications in replacing conventional lubricated mechanical bearings in electrical machinery. Here the gains would be two-fold: reduced frictional losses, leading to higher motor efficiency, and, of equal importance, the elimination of the need for lubricants and for routine replacement of the bearings owing to mechanical wear. Thus an added benefit from a vigorous pursuit of our electromechanical battery concepts could be its impact on many other areas of industry where rotating machinery in need of improved bearings is involved. If perfected, passive magnetic bearings would seem to represent an almost ideal replacement for the mechanical bearings in many types of industrial electrical machinery. Returning to the issued of energy storage, the E-M battery itself has much to contribute in the area of improving the efficiency of stationary energy storage systems. For example, many electrical utilities utilize 'pumped hydro' energy storage systems as a means of improving the utilization of their 'base-load' power plants. That is, electrical energy is stored during off-peak hours for delivery at times of peak usage. These pumped hydro sys

  5. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    gas-fired genset, solar thermal collectors, an absorptionchiller, 722 kW of solar thermal collectors, 1100 kWh of

  6. Electrical heating of soils using high efficiency electrode patterns and power phases

    DOE Patents [OSTI]

    Buettner, Harley M. (Livermore, CA)

    1999-01-01

    Powerline-frequency electrical (joule) heating of soils using a high efficiency electrode configuration and power phase arrangement. The electrode configuration consists of several heating or current injection electrodes around the periphery of a volume of soil to be heated, all electrodes being connected to one phase of a multi-phase or a single-phase power system, and a return or extraction electrode or electrodes located inside the volume to be heated being connected to the remaining phases of the multi-phase power system or to the neutral side of the single-phase power source. This electrode configuration and power phase arrangement can be utilized anywhere where powerline frequency soil heating is applicable and thus has many potential uses including removal of volatile organic compounds such as gasoline and tricholorethylene (TCE) from contaminated areas.

  7. 1?10 kW Stationary Combined Heat and Power Systems Status and Technical Potential: Independent Review

    SciTech Connect (OSTI)

    Maru, H. C.; Singhal, S. C.; Stone, C.; Wheeler, D.

    2010-11-01

    This independent review examines the status and technical potential of 1-10 kW stationary combined heat and power fuel cell systems and analyzes the achievability of the DOE cost, efficiency, and durability targets for 2012, 2015, and 2020.

  8. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    4-9 June 2007 and power (CHP) technology, especially forwith power electronics and CHP, and by an urgent need tokW of DER including a 28 kW CHP plant, 35 kW of PV, and an

  9. Magnesium and Manganese Silicides For Efficient And Low Cost Thermo-Electric Power Generation

    SciTech Connect (OSTI)

    Trivedi, Sudhir B.; Kutcher, Susan W.; Rosemeier, Cory A.; Mayers, David; Singh, Jogender

    2013-12-02

    Thermoelectric Power Generation (TEPG) is the most efficient and commercially deployable power generation technology for harvesting wasted heat from such things as automobile exhausts, industrial furnaces, and incinerators, and converting it into usable electrical power. We investigated the materials magnesium silicide (Mg2Si) and manganese silicide (MnSi) for TEG. MgSi2 and MnSi are environmentally friendly, have constituent elements that are abundant in the earth's crust, non-toxic, lighter and cheaper. In Phase I, we successfully produced Mg2Si and MnSi material with good TE properties. We developed a novel technique to synthesize Mg2Si with good crystalline quality, which is normally very difficult due to high Mg vapor pressure and its corrosive nature. We produced n-type Mg2Si and p-type MnSi nanocomposite pellets using FAST. Measurements of resistivity and voltage under a temperature gradient indicated a Seebeck coefficient of roughly 120 V/K on average per leg, which is quite respectable. Results indicated however, that issues related to bonding resulted in high resistivity contacts. Determining a bonding process and bonding material that can provide ohmic contact from room temperature to the operating temperature is an essential part of successful device fabrication. Work continues in the development of a process for reproducibly obtaining low resistance electrical contacts.

  10. Optimal Planning and Operation of Smart Grids with Electric Vehicle Interconnection

    E-Print Network [OSTI]

    Stadler, Michael

    2012-01-01

    PV), solar thermal, stationary batteries, thermal storage,thermal storage, AC - absorption cooling, ST-solar thermal,solar thermal collector (kW) PV (kW) stationary electric storage (

  11. Development of a Low Cost 10kW Tubular SOFC Power System

    SciTech Connect (OSTI)

    Bessette, Norman; Litka, Anthony; Rawson, Jolyon; Schmidt, Douglas

    2013-06-06

    The DOE program funded from 2003 through early 2013 has brought the Acumentrics SOFC program from an early stage R&D program to an entry level commercial product offering. The development work started as one of the main core teams under the DOE Solid State Energy Conversion Alliance (SECA) program administered by the National Energy Technology Laboratory (NETL) of the DOE. During the first phase of the program, lasting approximately 3-4 years, a 5kW machine was designed, manufactured and tested against the specification developed by NETL. This unit was also shipped to NETL for independent verification testing which validated all of the results achieved while in the laboratory at Acumentrics. The Acumentrics unit passed all criteria established from operational stability, efficiency, and cost projections. Passing of the SECA Phase I test allowed the program to move into Phase II of the program. During this phase, the overall objective was to further refine the unit meeting a higher level of performance stability as well as further cost reductions. During the first year of this new phase, the NETL SECA program was refocused towards larger size units and operation on coal gasification due to the severe rise in natural gas prices and refocus on the US supply of indigenous coal. At this point, the program was shifted to the U.S. DOE’s Energy Efficiency and Renewable Energy (EERE) division located in Golden, Colorado. With this shift, the focus remained on smaller power units operational on gaseous fuels for a variety of applications including micro combined heat and power (mCHP). To achieve this goal, further enhancements in power, life expectancy and reductions in cost were necessary. The past 5 years have achieved these goals with machines that can now achieve over 40% electrical efficiency and field units that have now operated for close to a year and a half with minimal maintenance. The following report details not only the first phase while under the SECA program and the key achievements but also the results while under EERE’s leadership and the transition to an early commercial product offering.

  12. Powerful, Efficient Electric Vehicle Chargers: Low-Cost, Highly-Integrated Silicon Carbide (SiC) Multichip Power Modules (MCPMs) for Plug-In Hybrid Electric

    SciTech Connect (OSTI)

    2010-09-14

    ADEPT Project: Currently, charging the battery of an electric vehicle (EV) is a time-consuming process because chargers can only draw about as much power from the grid as a hair dryer. APEI is developing an EV charger that can draw as much power as a clothes dryer, which would drastically speed up charging time. APEI's charger uses silicon carbide (SiC)-based power transistors. These transistors control the electrical energy flowing through the charger's circuits more effectively and efficiently than traditional transistors made of straight silicon. The SiC-based transistors also require less cooling, enabling APEI to create EV chargers that are 10 times smaller than existing chargers.

  13. Eliminating Electricity Deficit through Energy Efficiency in India: An Evaluation of Aggregate Economic and Carbon Benefits

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    Economic Survey of India (ESI) and statistics provided by2006). All India Electricity Statistics - General Review

  14. Efficiency and Environmental Impacts of Electricity Restructuring on Coal-fired Power Plants

    E-Print Network [OSTI]

    WITHOUT PERMISSION Abstract We investigate the impacts of electricity market restructuring on fuel-plants reallocation of electricity generation, restructuring appears to have on average lower capacity factors, to competitive wholesale electricity markets. Here independent generators would sell their electricity to buyers

  15. Public Health Benefits of End-Use Electrical Energy Efficiency in California: An Exploratory Study

    SciTech Connect (OSTI)

    McKone, Thomas E.; Lobscheid, A.B.

    2006-06-01

    This study assesses for California how increasing end-use electrical energy efficiency from installing residential insulation impacts exposures and disease burden from power-plant pollutant emissions. Installation of fiberglass attic insulation in the nearly 3 million electricity-heated homes throughout California is used as a case study. The pollutants nitrous oxides (NO{sub x}), sulfur dioxide (SO{sub 2}), fine particulate matter (PM2.5), benzo(a)pyrene, benzene, and naphthalene are selected for the assessment. Exposure is characterized separately for rural and urban environments using the CalTOX model, which is a key input to the US Environmental Protection Agency (EPA) Tool for the Reduction and Assessment of Chemicals and other environmental Impacts (TRACI). The output of CalTOX provides for urban and rural populations emissions-to-intake factors, which are expressed as an individual intake fraction (iFi). The typical iFi from power plant emissions are on the order of 10{sup -13} (g intake per g emitted) in urban and rural regions. The cumulative (rural and urban) product of emissions, population, and iFi is combined with toxic effects factors to determine human damage factors (HDFs). HDF are expressed as disability adjusted life years (DALYs) per kilogram pollutant emitted. The HDF approach is applied to the insulation case study. Upgrading existing residential insulation to US Department of Energy (DOE) recommended levels eliminates over the assmned 50-year lifetime of the insulation an estimated 1000 DALYs from power-plant emissions per million tonne (Mt) of insulation installed, mostly from the elimination of PM2.5 emissions. In comparison, the estimated burden from the manufacture of this insulation in DALYs per Mt is roughly four orders of magnitude lower than that avoided.

  16. Improving the lifetime performance of ceramic fuel cells Fuel cells generate electricity from fuels more efficiently and with

    E-Print Network [OSTI]

    Rollins, Andrew M.

    2014 Improving the lifetime performance of ceramic fuel cells Fuel cells generate electricity from fuels more efficiently and with fewer emissions per watt than burning fossil fuels. But as fuel cells received an $800,000 Department of Energy grant to study how to make one type of fuel cell--solid oxide

  17. Enhancement in light emission and electrical efficiencies of a silicon nanocrystal light-emitting diode by indium tin oxide nanowires

    SciTech Connect (OSTI)

    Huh, Chul, E-mail: chuh@etri.re.kr; Kim, Bong Kyu; Ahn, Chang-Geun; Kim, Sang-Hyeob [IT Convergence Technology Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon 305-350 (Korea, Republic of); Choi, Chel-Jong [Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756 (Korea, Republic of)

    2014-07-21

    We report an enhancement in light emission and electrical efficiencies of a Si nanocrystal (NC) light-emitting diode (LED) by employing indium tin oxide (ITO) nanowires (NWs). The formed ITO NWs (diameter?electrical characteristics of Si NC LED were significantly improved, which was attributed to an enhancement in the current spreading property due to densely interconnecting ITO NWs. In addition, light output power and wall-plug efficiency from the Si NC LED were enhanced by 45% and 38%, respectively. This was originated from an enhancement in the escape probability of the photons generated in the Si NCs due to multiple scatterings at the surface of ITO NWs acting as a light waveguide. We show here that the use of the ITO NWs can be very useful for realizing a highly efficient Si NC LED.

  18. Energy Conservation and Efficiency Improvement for the Electric Motors Operating in U.S. Oil Fields 

    E-Print Network [OSTI]

    Ula, S.; Cain, W.; Nichols, T.

    1993-01-01

    Because of its versatility, electricity consumption continues to grow all over the world more rapidly than any other energy form. The portion of the United States' primary energy supply used as electricity has expanded from near zero at the turn...

  19. Performance assessment of the PNM Prosperity electricity storage project :

    SciTech Connect (OSTI)

    Roberson, Dakota; Ellison, James F.; Bhatnagar, Dhruv; Schoenwald, David A.

    2014-05-01

    The purpose of this study is to characterize the technical performance of the PNM Prosperity electricity storage project, and to identify lessons learned that can be used to improve similar projects in the future. The PNM Prosperity electricity storage project consists of a 500 kW/350 kWh advanced lead-acid battery with integrated supercapacitor (for energy smoothing) and a 250 kW/1 MWh advanced lead-acid battery (for energy shifting), and is co-located with a 500 kW solar photovoltaic (PV) resource. The project received American Reinvestment and Recovery Act (ARRA) funding. The smoothing system is e ective in smoothing intermittent PV output. The shifting system exhibits good round-trip efficiencies, though the AC-to-AC annual average efficiency is lower than one might hope. Given the current utilization of the smoothing system, there is an opportunity to incorporate additional control algorithms in order to increase the value of the energy storage system.

  20. Do Generation Firms in Restructured Electricity Markets Have Incentives to Support Socially-Efficient Transmission Investments? *

    E-Print Network [OSTI]

    .S. transmission system is under stress (Abraham, 2002). Growth of electricity demand and new generation capacity investment in new generation and growth in electricity demand. Much of the current underinvestment1 Do Generation Firms in Restructured Electricity Markets Have Incentives to Support Socially

  1. North American Electricity Infrastructure: System Security, Quality, Reliability, Availability, and Efficiency

    E-Print Network [OSTI]

    Amin, S. Massoud

    1 North American Electricity Infrastructure: System Security, Quality, Reliability, Availability for reliable and disturbance-free electricity. The massive power outages in the United States, Canada, UK and Italy in 2003 underscored electricity infrastructure's vulnerabilities [1-11]. This vital yet complex

  2. Conceptual engineering design of a 50-kW rechargeable alkaline zinc/redox battery

    SciTech Connect (OSTI)

    Selman, J.R.; Hollansworth, R.P.

    1984-08-01

    The zinc/ferro-ferricyanide battery has been advanced over the past 6 years from a concept to a working unit of demonstrated high energy efficiency. A conceptual engineering design for a 50-kW solar storage battery system has been formulated, based upon performance data of 60, 200, and 1000 cm/sup 2/ cells and physical property data collected from the literature or determined earlier. Starting with a cell performance model and a crystallizer model, mass and energy balances are analyzed using a modular design. Isothermal and adiabatic operations are considered, and thermal storage requirements estimated

  3. Public Health Benefits of End-Use Electrical Energy Efficiency in California: An Exploratory Study

    E-Print Network [OSTI]

    McKone, Thomas E.

    2011-01-01

    resources (DEER) Update Shldy (Energy Commission, 2001). Asfor Energy Efficiency Resources (DEER) Update Study" (Final

  4. 100kW Energy Transfer Multiplexer Power Converter Prototype Development Project

    SciTech Connect (OSTI)

    S. Merrill Skeist; Richard H. (Dick) Baker; Anthony G.P. Marini; DOE Project Officer - Keith Bennett

    2006-03-21

    Project Final Report for "100kW Energy Transfer Multiplexer Power Converter Prototype Development Project" prepared under DOE grant number DE-FG36-03GO13138. This project relates to the further development and prototype construction/evaluation for the Energy Transfer Multiplexer (ETM) power converter topology concept. The ETM uses a series resonant link to transfer energy from any phase of a multiphase input to any phase of a multiphase output, converting any input voltage and frequency to any output voltage and frequency. The basic form of the ETM converter consists of an eight (8)-switch matrix (six phase power switches and two ground power switches) and a series L-C resonant circuit. Electronic control of the switches allows energy to be transferred in the proper amount from any phase to any other phase. Depending upon the final circuit application, the switches may be either SCRs or IGBTs. The inherent characteristics of the ETM converter include the following: Power processing in either direction (bidirectional); Large voltage gain without the need of low frequency magnetics; High efficiency independent of output load and frequency; Wide bandwidth with fast transient response and; Operation as a current source. The ETM is able to synthesize true sinusoidal waveforms with low harmonic distortions. For a low power PM wind generation system, the ETM has the following characteristics and advantages: It provides voltage gain without the need of low frequency magnetics (DC inductors) and; It has constant high efficiency independent of the load. The ETM converter can be implemented into a PM wind power system with smaller size, reduced weight and lower cost. As a result of our analyses, the ETM offers wind power generation technology for the reduction of the cost and size as well as the increase in performance of low power, low wind speed power generation. This project is the further theoretical/analytical exploration of the ETM converter concept in relationship to PM wind power generator applications in the 100kW and under power range. The theoretical/analytical and bench scale work focuses on simplifying the basic ETM converter topology (in terms of parts count and complexity) for the specific application of the low power PM system. The project goals and objectives were for Spellman HV will develop a 100kW prototype ETM power converter based on paralleled lower ratings converters. The proposed configuration of this prototype is a 100kW rated converter comprised of four (4) 34kW rated modules connected in parallel (the fourth converter is included to demonstrate N+1 fault tolerance). This approach is more viable as there is lower technological risk involved in developing a 34kW-rated converter than a single 100kW unit. The modular system approach should have a lower deployment and service cost over a single unit system, because of the economics of scale (smaller units at a higher volume means lower manufacturing cost) and because of improved serviceability (a non-redundant power system with one failed module will still operate at a lower power level). There is also the added benefit that greater commercial application and acceptance should be achieved by having a modular system available in which fault tolerance (N+1 or 2N) is a feature. This modular approach would allow the output power to be increased by adding more paralleled converters. Thus, the maximum output power of the overall power system is a function of the interconnection medium (the hot swap connection subsystem), rather than the ratings of a single module. The project was implemented with Spellman HV acting as the program management and production assembly and test facility; The Baker Company acting as a technical consultant and resource when required; and dtm Associates acting as the design/development resource for the hardware development of the 100kW ETM converter prototype.

  5. Electric vehicle climate control

    SciTech Connect (OSTI)

    Dauvergne, J.

    1994-04-01

    EVs have insufficient energy sources for a climatic comfort system. The heat rejection of the drivetrain is dispersed in the vehicle (electric motor, batteries, electronic unit for power control). Its level is generally low (no more than 2-kW peaks) and variable according to the trip profile, with no heat rejection at rest and a maximum during regenerative braking. Nevertheless, it must be used for heating. It is not realistic to have the A/C compressor driven by the electric traction motor: the motor does not operate when the vehicle is at rest, precisely when maximum cooling power is required. The same is true for hybrid vehicles during electric operation. It is necessary to develop solutions that use stored onboard energy either from the traction batteries or specific storage source. In either case, it is necessary to design the climate control system to use the energy efficiently to maximize range and save weight. Heat loss through passenger compartment seals and the walls of the passenger compartment must be limited. Plastic body panes help to reduce heat transfer, and heat gain is minimized with insulating glazing. This article describes technical solutions to solve the problem of passenger thermal comfort. However, the heating and A/C systems of electrically operated vehicles may have marginal performance at extreme outside temperatures.

  6. Simulated comparisons of emissions and fuel efficiency of diesel and gasoline hybrid electric vehicles

    SciTech Connect (OSTI)

    Gao, Zhiming [ORNL; Chakravarthy, Veerathu K [ORNL; Daw, C Stuart [ORNL

    2011-01-01

    This paper presents details and results of hybrid and plug-in hybrid electric passenger vehicle (HEV and PHEV) simulations that account for the interaction of thermal transients from drive cycle demands and engine start/stop events with aftertreatment devices and their associated fuel penalties. The simulations were conducted using the Powertrain Systems Analysis Toolkit (PSAT) software developed by Argonne National Laboratory (ANL) combined with aftertreatment component models developed at Oak Ridge National Lab (ORNL). A three-way catalyst model is used in simulations of gasoline powered vehicles while a lean NOx trap model in used to simulated NOx reduction in diesel powered vehicles. Both cases also use a previously reported methodology for simulating the temperature and species transients associated with the intermittent engine operation and typical drive cycle transients which are a significant departure from the usual experimental steady-state engine-map based approach adopted often in vehicle system simulations. Comparative simulations indicate a higher efficiency for diesel powered vehicles but the advantage is lowered by about a third (for both HEVs and PHEVs) when the fuel penalty associated with operating a lean NOx trap is included and may be reduced even more when fuel penalty associated with a particulate filter is included in diesel vehicle simulations. Through these preliminary studies, it is clearly demonstrated how accurate engine and exhaust systems models that can account for highly intermittent and transient engine operation in hybrid vehicles can be used to account for impact of emissions in comparative vehicle systems studies. Future plans with models for other devices such as particulate filters, diesel oxidation and selective reduction catalysts are also discussed.

  7. Development of a 402.5 MHz 140 kW Inductive Output Tube

    SciTech Connect (OSTI)

    R. Lawrence Ives; Michael Read, Robert Jackson

    2012-05-09

    This report contains the results of Phase I of an SBIR to develop a Pulsed Inductive Output Tube (IOT) with 140 kW at 400 MHz for powering H-proton beams. A number of sources, including single beam and multiple beam klystrons, can provide this power, but the IOT provides higher efficiency. Efficiencies exceeding 70% are routinely achieved. The gain is typically limited to approximately 24 dB; however, the availability of highly efficient, solid state drivers reduces the significance of this limitation, particularly at lower frequencies. This program initially focused on developing a 402 MHz IOT; however, the DOE requirement for this device was terminated during the program. The SBIR effort was refocused on improving the IOT design codes to more accurately simulate the time dependent behavior of the input cavity, electron gun, output cavity, and collector. Significant improvement was achieved in modeling capability and simulation accuracy.

  8. Design of a 1 kW class gamma type Stirling engine

    SciTech Connect (OSTI)

    Raggi, L.; Katsuta, Masafumi; Sekiya, Hiroshi

    1997-12-31

    The study for a design on a kinematic drive gamma type Stirling engine is reported. This unit enters in the 1kW class and it is conceived to move a portable electric generator. The peculiarity of this unit is basically to use components taken from the line production, and also for the parts designed specifically for this application all the efforts are directed to simplicity in terms of material and manufacture. At first the engine performance targets are defined in compatibility with the components taken from a large scale production compressor and then the new components like the heat exchangers and the crank mechanism are designed. Two pre-tests are effected: one to define the performances of the induction motor in the electric regenerative mode and another running the machine as a refrigerator.

  9. Burlington Electric Department- Multi-Family Rental Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Burlington Electric Department offers an innovative rebate program geared towards rental apartment owners. The program is designed to offer rebates on some of the most energy intensive household...

  10. Impact of Storage on the Efficiency and Prices in Real-Time Electricity Markets

    E-Print Network [OSTI]

    Proutiere, Alexandre

    behavior of the various actors lead to a socially acceptable situation? Electricity markets are highly complex dynamical systems. They incorporate renewable energy sources, such as wind and solar

  11. Vertical Integration in Restructured Electricity Markets: Measuring Market Efficiency and Firm Conduct

    E-Print Network [OSTI]

    Mansur, Erin T.

    2003-01-01

    California electricity market, BBW use a Monte Carlo simulation to account for the convex relationship between the uncertain availability of power plants

  12. Micropower chemical fuel-to-electric conversion : a "regenerative flip" hydrogen concentration cell promising near carnot efficiency.

    SciTech Connect (OSTI)

    Wally, Karl

    2006-05-01

    Although battery technology is relatively mature, power sources continue to impose serious limitations for small, portable, mobile, or remote applications. A potentially attractive alternative to batteries is chemical fuel-to-electric conversion. Chemical fuels have volumetric energy densities 4 to 10 times those of batteries. However, realizing this advantage requires efficient chemical fuel-to-electric conversion. Direct electrochemical conversion would be the ideal, but, for most fuels, is generally not within the state-of-the-science. Next best, chemical-to-thermal-to-electric conversion can be attractive if efficiencies can be kept high. This small investigative project was an exploration into the feasibility of a novel hybrid (i.e., thermal-electrochemical) micropower converter of high theoretical performance whose demonstration was thought to be within near-term reach. The system is comprised of a hydrogen concentration electrochemical cell with physically identical hydrogen electrodes as anode and cathode, with each electrode connected to physically identical hydride beds each containing the same low-enthalpy-of-formation metal hydride. In operation, electrical power is generated by a hydrogen concentration differential across the electrochemical cell. This differential is established via coordinated heating and passive cooling of the corresponding hydride source and sink. Heating is provided by the exothermic combustion (i.e., either flame combustion or catalytic combustion) of a chemical fuel. Upon hydride source depletion, the role of source and sink are reversed, heating and cooling reversed, electrodes commutatively reversed, cell operation reversed, while power delivery continues unchanged. This 'regenerative flip' of source and sink hydride beds can be cycled continuously until all available heating fuel is consumed. Electricity is efficiently generated electrochemically, but hydrogen is not consumed, rather the hydrogen is regeneratively cycled as an electrochemical 'working fluid'.

  13. Investment and Efficiency under Incentive Regulation: The Case of the Norwegian Electricity Distribution Networks

    E-Print Network [OSTI]

    Poudineh, Rahmatallah; Jamasb, Tooraj

    2013-04-01

    and competitive businesses (NVE, 2010). EPRG 1306 4 At the early years of the reform, there were approximately 230 distribution networks and 70 generation units in Norway. The high number of utilities reflects the dispersed nature of hydroelectric resources... from their efficiency level. The investment increase can be continued until efficiency after investment reduces to no impact efficiency, in which state, some form of optimality will be achieved. On the other hand, those firms that their efficiency...

  14. High-Efficiency Solar Cells for Large-Scale Electricity Generation

    SciTech Connect (OSTI)

    Kurtz, S.; Olson, J.; Geisz, J.; Friedman, D.; McMahon, W.; Ptak, A.; Wanlass, M.; Kibbler, A.; Kramer, C.; Bertness, K.; Ward, S.; Duda, A.; Young, M.; Carapella, J.; Steiner, M.

    2008-09-26

    One strategy for helping the solar industry to grow faster is to use very high efficiency cells under concentrating optics. By using lenses or mirrors to concentrate the light, very small solar cells can be used, reducing the amount of semiconductor material and allowing use of higher efficiency cells, which are now >40% efficient.

  15. EFFICIENT PRICING IN ELECTRICITY MARKETS: WHO IS ON REAL-TIME PRICING 

    E-Print Network [OSTI]

    Fontana, Michelle

    2011-08-08

    commercial and industrial users of electricity pay prices that reflect the social cost of power at the time of consumption. This pricing mechanism is called “real-time pricing” (RTP) in electricity markets. I have access to a unique, new dataset of virtually...

  16. Use of low cost and easily regenerated Prussian Blue cathodes for efficient electrical energy

    E-Print Network [OSTI]

    Cui, Yi

    Cui*bd Microbial fuel cells can directly convert chemical energy into electrical energy, but significant energy losses result from the use of O2 as the cathode. Microbial batteries (MBs) replace of microorganisms, converting the chemical energy of dilute organic matter into electricity.1­5 Microbial fuel cells

  17. The Boom of Electricity Demand in the Residential Sector in the Developing World and the Potential for Energy Efficiency

    SciTech Connect (OSTI)

    Letschert, Virginie; McNeil, Michael A.

    2008-05-13

    With the emergence of China as the world's largest energy consumer, the awareness of developing country energy consumption has risen. According to common economic scenarios, the rest of the developing world will probably see an economic expansion as well. With this growth will surely come continued rapid growth in energy demand. This paper explores the dynamics of that demand growth for electricity in the residential sector and the realistic potential for coping with it through efficiency. In 2000, only 66% of developing world households had access to electricity. Appliance ownership rates remain low, but with better access to electricity and a higher income one can expect that households will see their electricity consumption rise significantly. This paper forecasts developing country appliance growth using econometric modeling. Products considered explicitly - refrigerators, air conditioners, lighting, washing machines, fans, televisions, stand-by power, water heating and space heating - represent the bulk of household electricity consumption in developing countries. The resulting diffusion model determines the trend and dynamics of demand growth at a level of detail not accessible by models of a more aggregate nature. In addition, the paper presents scenarios for reducing residential consumption through cost-effective and/or best practice efficiency measures defined at the product level. The research takes advantage of an analytical framework developed by LBNL (BUENAS) which integrates end use technology parameters into demand forecasting and stock accounting to produce detailed efficiency scenarios, which allows for a realistic assessment of efficiency opportunities at the national or regional level. The past decades have seen some of the developing world moving towards a standard of living previously reserved for industrialized countries. Rapid economic development, combined with large populations has led to first China and now India to emerging as 'energy giants', a phenomenon that is expected to continue, accelerate and spread to other countries. This paper explores the potential for slowing energy consumption and greenhouse gas emissions in the residential sector in developing countries and evaluates the potential of energy savings and emissions mitigation through market transformation programs such as, but not limited to Energy Efficiency Standards and Labeling (EES&L). The bottom-up methodology used allows one to identify which end uses and regions have the greatest potential for savings.

  18. The Boom of Electricity Demand in the Residential Sector in the Developing World and the Potential for Energy Efficiency

    E-Print Network [OSTI]

    Letschert, Virginie

    2010-01-01

    residential electricity in developing country regions. Thehousehold electricity consumption in developing countries.targeting electricity consumption in developing countries,

  19. ELECTRIC

    Office of Legacy Management (LM)

    you nay give us will be greatly uppreckted. VPry truly your23, 9. IX. Sin0j3, Mtinager lclectronics and Nuclear Physics Dept. omh , WESTINGHOUSE-THE NAT KING IN ELECTRICITY...

  20. Electricity Reliability

    E-Print Network [OSTI]

    Post, Wilfred M.

    Electricity Delivery and Energy Reliability High Temperature Superconductivity (HTS) Visualization in the future because they have virtually no resistance to electric current, offering the possibility of new electric power equipment with more energy efficiency and higher capacity than today's systems

  1. Electric & Gas Conservation Programs Connecticut Energy Efficiency Fund Programs for Commercial & Industrial Customers 

    E-Print Network [OSTI]

    Sermakekian, E.

    2011-01-01

    Conservation Programs Connecticut Energy Efficiency Fund Programs for Commercial & Industrial Customers Presented by: CL&P?s Conservation and Load Management Department 2 ? Connecticut Energy Efficiency Fund (CEEF) was created... in 1998 by CT State Legislature ? Energy efficiency is a valuable resource for Connecticut, it: ? Reduces air pollutants and greenhouse gases ? Creates monetary savings for customers ? Reduces need for more energy generation ? Creates jobs ? Money...

  2. Effect of automotive electrical system changes on fuel consumption using incremental efficiency methodology

    E-Print Network [OSTI]

    Hardin, Christopher William

    2004-01-01

    There has been a continuous increase in automotive electric power usage. Future projections show no sign of it decreasing. Therefore, the automotive industry has a need to either improve the current 12 Volt automotive ...

  3. The Use of Electricity in Industry and Energy Saving - The Gamma Co-Efficient 

    E-Print Network [OSTI]

    Wolf, R.; Froehlich, R.

    1983-01-01

    Use of electricity in manufacturing processes is not only limited to its specific utilizations as motion power, lighting, electrolysis. Worldwide energy troubles involve in France a great voluntee to substitute in industrial processes the nuclear...

  4. A Comprehensive Approach for Computation and Implementation of Efficient Electricity Transmission Network Charges

    E-Print Network [OSTI]

    Pérez-Arriaga, Ignacio J.

    This paper presents a comprehensive design of electricity transmission charges that are meant to recover regulated network costs. In addition, these charges must be able to meet a set of inter-related objectives. Most ...

  5. Kentucky Utilities Company and Louisville Gas & Electric- Residential Energy Efficiency Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

     Kentucky Utilities Company's Home Energy Rebate program provides incentives for residential customers to upgrade to energy efficiency home appliances and heat and air conditioning equipment. ...

  6. Potential Benefits from Improved Energy Efficiency of Key Electrical Products: The Case of India

    E-Print Network [OSTI]

    McNeil, Michael; Iyer, Maithili; Meyers, Stephen; Letschert, Virginie; McMahon, James E.

    2005-01-01

    Karnataka State, India, Energy for Sustainable Development,Synergy for Energy, Ahmedabad, India, October 2004. TERI (Labelling and Energy Efficiency Standards in India, Indian

  7. Photo of the Week: Argonne's 10 kW Wind Turbine | Department...

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

    Photo of the Week: Argonne's 10 kW Wind Turbine Photo of the Week: Argonne's 10 kW Wind Turbine November 9, 2012 - 11:57am Addthis At Argonne National Laboratory, the power...

  8. 1-10 kW Stationary Combined Heat and Power Systems Status and...

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

    1-10 kW Stationary Combined Heat and Power Systems Status and Technical Potential: Independent Review 1-10 kW Stationary Combined Heat and Power Systems Status and Technical...

  9. Development of an Underamor 1-kW Thermoelectric Generator Waste...

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

    an Underamor 1-kW Thermoelectric Generator Waste Heat Recovery System for Military Vehicles Development of an Underamor 1-kW Thermoelectric Generator Waste Heat Recovery System for...

  10. Efficiency, equity and the environment: Institutional challenges in the restructuring of the electric power industry

    SciTech Connect (OSTI)

    Haeri, M.H.

    1998-07-01

    In the electric power industry, fundamental changes are underway in Europe, America, Australia, New Zealand and, more recently, in Asia. Rooted in increased deregulation and competition, these changes are likely to radically alter the structure of the industry. Liberalization of electric power markets in the United Kingdom is, for the most part, complete. The generation market in the United States began opening to competition following the 1987 Public Utility Regulatory Policies Act (PURPA). The Energy Policy Act of 1992 set the stage for a much more dramatic change in the industry. The most far-reaching provision of the Act was its electricity title, which opened access to the electric transmission grid. With legal barriers now removed, the traditionally sheltered US electric utility market is becoming increasingly open to entry and competition. A number of important legislative, regulatory and governmental policy initiatives are underway in the Philippines that will have a profound effect on the electric power industry. In Thailand, the National Energy Planning Organization (NEPO) has undertaken a thorough investigation of industry restructuring. This paper summarizes recent international developments in the deregulation and liberalization of electricity markets in the U.K., U.S., Australia, and New Zealand. It focuses on the relevance of these experiences to development underway in the Philippines and Thailand, and presents alternative possible structures likely to emerge in these countries, drawing heavily on the authors' recent experiences in Thailand and the Philippines. The impact of these changes on the business environment for power generation and marketing will be discussed in detail, as will the opportunities these changes create for investment among private power producers.

  11. An efficient wireless power transfer system with security considerations for electric vehicle applications

    SciTech Connect (OSTI)

    Zhang, Zhen; Chau, K. T. Liu, Chunhua; Qiu, Chun; Lin, Fei

    2014-05-07

    This paper presents a secure inductive wireless power transfer (WPT) system for electric vehicle (EV) applications, such as charging the electric devices inside EVs and performing energy exchange between EVs. The key is to employ chaos theory to encrypt the wirelessly transferred energy which can then be decrypted by specific receptors in the multi-objective system. In this paper, the principle of encrypted WPT is first revealed. Then, computer simulation is conducted to validate the feasibility of the proposed system. Moreover, by comparing the WPT systems with and without encryption, the proposed energy encryption scheme does not involve noticeable power consumption.

  12. NREL Works to Increase Electric Vehicle Efficiency Through Enhanced Thermal Management (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-06-01

    Researchers at NREL are providing new insight into how heating and cooling systems affect the distance that electric vehicles can travel on a single charge. Electric vehicle range can be reduced by as much as 68% per charge because of climate-control demands. NREL engineers are investigating opportunities to change this dynamic and increase driving range by improving vehicle thermal management. NREL experts are collaborating with automotive industry partners to investigate promising thermal management technologies and strategies, including zone-based cabin temperature controls, advanced heating and air conditioning controls, seat-based climate controls, vehicle thermal preconditioning, and thermal load reduction technologies.

  13. Efficiency-risk tradeoffs in dynamic oligopoly markets : with application to electricity markets

    E-Print Network [OSTI]

    Huang, Qingqing, S.M. Massachusetts Institute of Technology

    2013-01-01

    In an abstract framework, we examine how a tradeoff between efficiency and risk arises in different dynamic oligopolistic markets. We consider a scenario where there is a reliable resource provider and agents which enter ...

  14. Public Health Benefits of End-Use Electrical Energy Efficiency in California: An Exploratory Study

    E-Print Network [OSTI]

    McKone, Thomas E.

    2011-01-01

    Efficiency Improvements at Coal-Fired Power Plants." Locatedcapacity comes from coal-fired power plants (including coalCalifornia is the Mohave coal-fired power plants located in

  15. Using Weather Derivatives to Improve the Efficiency of Forward Markets for Electricity*

    E-Print Network [OSTI]

    is an effective way to reduce the risk of purchasing electricity in a spot market. The main advantages are 1 of this paper is to use weather options to deal with the risk faced by customers in a volatile market prices. In reality, these options do not work very well as direct hedges against high prices in the spot

  16. Test Results From The Idaho National Laboratory 15kW High Temperature Electrolysis Test Facility

    SciTech Connect (OSTI)

    Carl M. Stoots; Keith G. Condie; James E. O'Brien; J. Stephen Herring; Joseph J. Hartvigsen

    2009-07-01

    A 15kW high temperature electrolysis test facility has been developed at the Idaho National Laboratory under the United States Department of Energy Nuclear Hydrogen Initiative. This facility is intended to study the technology readiness of using high temperature solid oxide cells for large scale nuclear powered hydrogen production. It is designed to address larger-scale issues such as thermal management (feed-stock heating, high temperature gas handling, heat recuperation), multiple-stack hot zone design, multiple-stack electrical configurations, etc. Heat recuperation and hydrogen recycle are incorporated into the design. The facility was operated for 1080 hours and successfully demonstrated the largest scale high temperature solid-oxide-based production of hydrogen to date.

  17. Farmington Electric Utility System- Net Metering

    Broader source: Energy.gov [DOE]

    Farmington Electric, a municipal utility, offers net metering to residential customers with systems up to 10 kilowatts (kW) in capacity. This option is available for photovoltaic (PV), wind, hydro...

  18. Geographic Variation in Potential of Rooftop Residential Photovoltaic Electric Power Production in the United States

    Broader source: Energy.gov [DOE]

    This paper describes a geographic evaluation of Zero Energy Home (ZEH) potential, specifically an assessment of residential roof-top solar electric photovoltaic (PV) performance around the United States and how energy produced would match up with very-efficient and super-efficient home designs. We performed annual simulations for 236 TMY2 data locations throughout the United States on two highly-efficient one-story 3-bedroom homes with a generic grid-tied solar electric 2kW PV system. These annual simulations show how potential annual solar electric power generation (kWh) and potential energy savings from PV power vary geographically around the U.S. giving the user in a specific region an indication of their expected PV system performance.

  19. Should we transport coal, gas, or electricity: cost, efficiency, and environmental implications

    SciTech Connect (OSTI)

    Joule A. Bergerson; Lester B. Lave

    2005-08-15

    The authors examine the life cycle costs, environmental discharges, and deaths of moving coal via rail, coal to synthetic natural gas via pipeline, and electricity via wire from the Powder River Basin (PRB) in Wyoming to Texas. Which method has least social cost depends on how much additional investment in rail line, transmission, or pipeline infrastructure is required, as well as how much and how far energy is transported. If the existing rail lines have unused capacity, coal by rail is the cheapest method (up to 200 miles of additional track could be added). If no infrastructure exists, greater distances and larger amounts of energy favor coal by rail and gasified coal by pipeline over electricity transmission. For 1,000 miles and 9 gigawatts of power, a gas pipeline is cheapest, has less environmental discharges, uses less land, and is least obtrusive. 28 refs., 4 figs., 3 tabs.

  20. Speculative Trading and Market Performance: The Effect of Arbitrageurs on Efficiency and Market Power in the New York Electricity Market

    E-Print Network [OSTI]

    Saravia, Celeste

    2003-01-01

    in California’s Electricity Markets. ” University ofin Restructured Electricity Markets: Mea- suring Market E?s Deregulated Electricity Market. ” University of California

  1. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    in the Evolving Electricity Generation and Deliveryfor meeting building electricity and heat requirementswas funded by the Office of Electricity Delivery and Energy

  2. Efficiency Exchange Conference Highlights Energy Efficiency Innovation...

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

    Efficiency Exchange Conference Highlights Energy Efficiency Innovations and Trends Northwest electric power industry connects on the latest energy efficiency programs and...

  3. Efficiency Exchange highlights energy efficiency innovations...

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

    Efficiency Exchange highlights energy efficiency innovations and trends Northwest electric power industry connects on the latest energy efficiency programs and strategies Portland,...

  4. Property:Incentive/PVPbiFitMaxKW | 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,AltFuelVehicle2 Jump to: navigation, searchContDiv Jump to:FundSrc JumpPVPbiFitMaxKW Jump

  5. Characterization of a 5 kW solid oxide fuel cell stack using power electronic excitation

    E-Print Network [OSTI]

    Seger, Eric

    Fuel cells have attracted great interest as a means of clean, efficient conversion of chemical to electrical energy. This paper demonstrates the identification of both non-parametric and lumped circuit models of our stack ...

  6. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    estimates for two alternative energy efficiency portfolios (and benefits of alternative energy efficiency portfoliosand benefits of alternative energy efficiency portfolios

  7. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    requirements, and alternative energy efficiency portfolios).generation vs. energy efficiency) and alternative businessand benefits of alternative energy efficiency portfolios

  8. A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report

    SciTech Connect (OSTI)

    R.Lawrece Ives; George Collins; David Marsden Michael Read; Edward Eisen; Takuchi Kamura, Philipp Borchard

    2012-11-28

    This program developed a 200 kW CW, 350 MHz, multiple beam inductive output tube (MBIOT) for driving accelerator cavities. The MBIOT operates at 30 kV with a gain of 23 dB. The estimated efficiency is 70%. The device uses seven electron beams, each transmitting 1.4 A of current. The tube is approximately six feet long and weighs approximately 400 lbs. The prototype device will be evaluated as a potential RF source for the Advanced Photon Source at Argonne National Laboratory (ANL). Because of issues related to delivery of the electron guns, it was not possible to complete assembly and test of the MBIOT during the Phase II program. The device is being completed with support from Calabazas Creek Research, Inc., Communications & Power Industries, LLC. and the Naval Surface Weapons Center (NSWC) in Dahlgren, VA. The MBIOT will be initially tested at NSWC before delivery to ANL. The testing at NSWC is scheduled for February 2013.

  9. ELECTRIC

    Office of Legacy Management (LM)

    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 of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers CoMadison -T: Designation ofSEPE.ELECTRIC

  10. Energy Savings Potential and Opportunities for High-Efficiency Electric Motors in Residential and Commercial Equipment

    SciTech Connect (OSTI)

    Goetzler, William; Sutherland, Timothy; Reis, Callie

    2013-12-04

    This report describes the current state of motor technology and estimates opportunities for energy savings through application of more advanced technologies in a variety of residential and commercial end uses. The objectives of this report were to characterize the state and type of motor technologies used in residential and commercial appliances and equipment and to identify opportunities to reduce the energy consumption of electric motor-driven systems in the residential and commercial sectors through the use of advanced motor technologies. After analyzing the technical savings potential offered by motor upgrades and variable speed technologies, recommended actions are presented.

  11. Cost Effective, High Efficiency Integrated Systems Approach to Auxilliary Electric Motors

    SciTech Connect (OSTI)

    Roy Kessinger Jr.; Keith Seymour; Kanchan Angal; Jason Wolf; Steve Brewer; Leonard Schrank

    2003-09-26

    The CARAT program, carried out by Kinetic Art & Technology Corporation (KAT), has been one of the most commercially successful KAT R&D programs to date. Based on previous development of its technology, KAT designed, constructed and tested a highly efficient motor and controller system under this CARAT program with supplemental commercial funding. Throughout this CARAT effort, the technical objectives have been refined and refocused. Some objectives have been greatly expanded, while others have been minimized. The determining factor in all decisions to refocus the objectives was the commercial need, primarily the needs of KAT manufacturing partners. Several companies are employing the resulting CARAT motor and controller designs in prototypes for commercial products. Two of these companies have committed to providing cost share in order to facilitate the development. One of these companies is a major manufacturing company developing a revolutionary new family of products requiring the ultra-high system efficiency achievable by the KAT motor and controller technologies (known as Segmented ElectroMagnetic Array, or SEMA technology). Another company requires the high efficiency, quiet operation, and control characteristics afforded by the same basic motor and controller for an advanced air filtration product. The combined annual production requirement projected by these two companies exceeds one million units by 2005.

  12. 500-kW DCHX pilot-plant evaluation testing

    SciTech Connect (OSTI)

    Hlinak, A.; Lee, T.; Loback, J.; Nichols, K.; Olander, R.; Oshmyansky, S.; Roberts, G.; Werner, D.

    1981-10-01

    Field tests with the 500 kW Direct Contact Pilot Plant were conducted utilizing brine from well Mesa 6-2. The tests were intended to develop comprehensive performance data, design criteria, and economic factors for the direct contact power plant. The tests were conducted in two phases. The first test phase was to determine specific component performance of the DCHX, turbine, condensers and pumps, and to evaluate chemical mass balances of non-condensible gases in the IC/sub 4/ loop and IC/sub 4/ in the brine stream. The second test phase was to provide a longer term run at nearly fixed operating conditions in order to evaluate plant performance and identify operating cost data for the pilot plant. During these tests the total accumulated run time on major system components exceeded 1180 hours with 777 hours on the turbine prime mover. Direct contact heat exchanger performance exceeded the design prediction.

  13. An Interview with Professor Alexandra von Meier on an Efficient Electric Grid: Improving Visibility and Integrating Renewable Sources

    E-Print Network [OSTI]

    Chowdhary, Harshika; Gill, Manraj; McGuinness, Philippa; Miller, Daniel; Patel, Saavan

    2015-01-01

    about where is it, how do we convert it efficiently, how dowe transmit it efficiently, and then the big challenge ismaking distribution systems more efficient to improving the

  14. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    2009. The 2009 State Energy Efficiency Scorecard. ACEEEof Ratepayer-Funded Energy Efficiency in the U.S.. Therenewable energy and energy efficiency into a sustainable

  15. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    Demand Side Resource Energy Efficiency Energy Efficiencyof cost-effective energy efficiency resources as part of itsthat include energy efficiency resources. If a business

  16. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    electric load thermal storage solar thermal storage chargingcombustion solar thermal CHP heat storage charging generateof solar thermal collectors, 1100 kWh of electrical storage,

  17. Rotating electrical machines, pt.2: Methods for determining losses and efficiency of rotating electrical machinery form tests (excl. machines for traction vehicles), 1st suppl. Measurement of losses by the calorimetric method

    E-Print Network [OSTI]

    International Electrotechnical Commission. Geneva

    1974-01-01

    Describes methods for measuring the efficiency of electrical rotating machines either by determining total losses on load or by determination of the segregated losses for air and water cooling mediums. Applies to large generators but may be used for other machines.

  18. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    factors means the carbon footprint of commercial buildingscan accelerate lowering the carbon footprint of electricity

  19. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.

    E-Print Network [OSTI]

    and amortization ERCOT Electric Reliability Council of Texas kW kilowatt kWh kilowatt-hour LCOE levelized cost

  20. WIND TURBINE SITING IN AN URBAN ENVIRONMENT: THE HULL, MA 660 KW TURBINE

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    1 WIND TURBINE SITING IN AN URBAN ENVIRONMENT: THE HULL, MA 660 KW TURBINE J. F. Manwell, J. G. Mc turbine at Windmill Point in Hull, Massachusetts represents a high point in the long history of wind, through the installation of a 40 kW Enertech machine in the 1980's to the installation of the new turbine

  1. New Hampshire Electric Co-Op- Small Business Energy Solutions

    Broader source: Energy.gov [DOE]

    New Hampshire Electric Co-Op offers incentives for its small commercial customers (those using less than 100 kW) through the Small Business Energy Solutions Program. The Co-op will conduct a free...

  2. Central Hudson Gas & Electric (Electric) - Residential Energy...

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

    residential electric customers who upgrade heating, cooling or ventilation systems with specific types of energy efficient equipment. These rebates include efficient central air...

  3. Global Potential of Energy Efficiency Standards and Labeling Programs

    E-Print Network [OSTI]

    McNeil, Michael A

    2008-01-01

    Efficiency in Electricity Consumption. HWWA , HamburgischesB. Atanasiu (2006). Electricity Consumption and EfficiencyB. Atanasiu (2006). Electricity Consumption and Efficiency

  4. Development of a 75-kW heat-pipe receiver for solar heat-engines

    SciTech Connect (OSTI)

    Adkins, D.R.; Andraka, C.E.; Moss, T.A.

    1995-05-01

    A program is now underway to develop commercial power conversion systems that use parabolic dish mirrors in conjunction with Stirling engines to convert solar energy to electric power. In early prototypes, the solar concentrator focused light directly on the heater tubes of the Stirling engine. Liquid-metal heat-pipes are now being developed to transfer energy from the focus of the solar concentrator to the heater tubes of the engine. The dome-shaped heat-pipe receivers are approximately one-half meters in diameter and up to 77-kW of concentrated solar energy is delivered to the absorber surface. Over the past several years, Sandia National Laboratories, through the sponsorship of the Department of Energy, has conducted a major program to explore receiver designs and identify suitable wick materials. A high-flux bench-scale system has been developed to test candidate wick designs, and full-scale systems have been tested on an 11-meter test-bed solar concentrator. Procedures have also been developed in this program to measure the properties of wick materials, and an extensive data-base on wick materials for high temperature heat pipes has been developed. This paper provides an overview of the receiver development program and results from some of the many heat-pipe tests.

  5. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01

    fuel efficiency and electricity demand assumptions used into added vehicle electricity demand in the BAU (no IGCC)to added vehicle electricity demand in the Mixed technology

  6. ITP Industrial Distributed Energy: Combined Heat & Power Multifamily Performance Program-- Sea Park East 150 kW CHP System

    Broader source: Energy.gov [DOE]

    Overview of Sea Park East 150 kilowatt (kW) Combined Heat and Power (CHP) System in Brooklyn, New York

  7. NASA's nuclear electric propulsion technology project

    SciTech Connect (OSTI)

    Stone, J.R.; Sovey, J.S. (NASA, Lewis Research Center, Cleveland, OH (United States))

    1992-07-01

    The National Aeronautics and Space Administration (NASA) has initiated a program to establish the readiness of nuclear electric propulsion (NEP) technology for relatively near-term applications to outer planet robotic science missions with potential future evolution to system for piloted Mars vehicles. This program was initiated in 1991 with a very modest effort identified with nuclear thermal propulsion (NTP); however, NEP is also an integral part of this program and builds upon NASA's Base Research and Technology Program in power and electric propulsion as well as the SP-100 space nuclear power program. The NEP Program will establish the feasibility and practicality of electric propulsion for robotic and piloted solar system exploration. The performance objectives are high specific impulse (200 greater than I(sub sp) greater than 10000 s), high efficiency (over 0.50), and low specific mass. The planning for this program was initially focussed on piloted Mars missions, but has since been redirected to first focus on 100-kW class systems for relatively near-term robotic missions, with possible future evolution to megawatt-and multi-megawatt-class systems applicable to cargo vehicles supporting human missions as well as to the piloted vehicles. This paper reviews current plans and recent progress for the overall nuclear electric propulsion project and closely related activities. 33 refs.

  8. Researchers' Hottest New Laser Beams 14.2 kW | Jefferson Lab

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

    past the milestone to produce 11.7 kW. But the team didn't stop there. They pushed the machine they had spent years designing, crafting and tweaking to surpass the record they had...

  9. Does competition reduce costs? : assessing the impact of regulatory restructuring on U.S. electric generation efficiency

    E-Print Network [OSTI]

    Rose, Nancy L.

    2004-01-01

    Although the allocative efficiency benefits of competition are a tenet of microeconomic theory, the relation between competition and technical efficiency is less well understood. Neoclassical models of profit-maximization ...

  10. Uniform Methods for Determining Energy Efficiency Savings and Increasing Electric Utility Confidence in Reported Savings Now Available

    Broader source: Energy.gov [DOE]

    The National Renewable Energy Laboratory (NREL) has published protocols for estimating energy savings for residential and commercial energy efficiency programs and measures through the recently released “The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures.”

  11. DRIVER ACCELERATOR DESIGN FOR THE 10 KW UPGRADE OF THE JEFFERSON LAB IR FEL

    E-Print Network [OSTI]

    DRIVER ACCELERATOR DESIGN FOR THE 10 KW UPGRADE OF THE JEFFERSON LAB IR FEL D. Douglas, S. V, Newport News, VA23606, USA Abstract An upgrade of the Jefferson Lab IR FEL [1] is now un- der construction. It will provide 10 kW output light power in a wavelength range of 2­10 µm. The FEL will be driven by a modest

  12. Estimating the Energy Use and Efficiency Potential of U.S. Data Centers

    E-Print Network [OSTI]

    Masanet, Eric R.

    2012-01-01

    Efficiency measure contributions to electricity savings 2: Efficiency measure contributions to electricity savingselectricity savings of the efficiency measures assessed by

  13. High Efficiency 370kW Microturbine with Integral Heat Recovery

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nA Guide to TappingWORK BREAKDOWNEnergy how toEM& Industry

  14. High Efficiency 370kW Microturbine with Integral HeatRecovery

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nA Guide to TappingWORK BREAKDOWNEnergy how toEM& IndustryVicario Sr.

  15. Utility Rate Structures and the Impact of Energy Efficiency and...

    Energy Savers [EERE]

    FL Energy Efficiency Calculations * Rates: most common are energy only rates, or a demand rate (kVa or kW) * Demand Rate - Can't use the average cost per kWh for calculations -...

  16. OG&E- Commercial Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    OG&E offers lighting and custom rebates to commercial customers in Oklahoma to improve the energy efficiency of facilities. A rebate of $250 per kilowatt (kW) reduced is available for a wide...

  17. Energy Efficiency Indicators Methodology Booklet

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    nuclear and geothermal electricity, heat is the primary energy form considered and the conventional efficiencies

  18. Review of the State-of-the-Art in Power Electronics Suitable for 10-KW Military Power Systems

    SciTech Connect (OSTI)

    Staunton, R.H.

    2003-12-19

    The purpose of this report is to document the technological opportunities of integrating power electronics-based inverters into a TEP system, primarily in the 10-kW size range. The proposed enhancement offers potential advantages in weight reduction, improved efficiency, better performance in a wider range of generator operating conditions, greater versatility and adaptability, and adequate reliability. In order to obtain strong assurance of the availability of inverters that meet required performance and reliability levels, a market survey was performed. The survey obtained positive responses from several manufacturers in the motor drive and distributed generation industries. This study also includes technology reviews and assessments relating to circuit topologies, reliability issues, vulnerability to pulses of electromagnetic energy, potential improvements in semiconductor materials, and potential performance improvement through cryogenics.

  19. Influence of surface treatment and interface layers on electrical spin injection efficiency and transport in InAs

    E-Print Network [OSTI]

    Yu, Edward T.

    . © 2010 American Vacuum Society. DOI: 10.1116/1.3502674 I. INTRODUCTION All-electrical spintronic devices Structures incorporating narrow-bandgap semiconductors of- fer potential advantages for spintronic device

  20. Microgrids: An emerging paradigm for meeting building electricity and heat requirements efficiently and with appropriate energy quality

    E-Print Network [OSTI]

    Marnay, Chris; Firestone, Ryan

    2007-01-01

    Venkataramanan, 2006, Microgrids in the Evolving ElectricityN ATIONAL L ABORATORY Microgrids: An emerging paradigm forFrance, 4-9 June 2007 Microgrids: An emerging paradigm for

  1. Electricity demand-side management for an energy efficient future in China : technology options and policy priorities

    E-Print Network [OSTI]

    Cheng, Chia-Chin

    2005-01-01

    The main objective of this research is to identify robust technology and policy options which achieve substantial reductions in electricity demand in China's Shandong Province. This research utilizes a scenario-based ...

  2. Plug-In Electric Vehicle Handbook for Consumers (Spanish Version); Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    SciTech Connect (OSTI)

    2015-08-01

    This is a Spanish-language handbook designed to answer a consumer's basic questions, as well as point them to additional information they need, to make the best decision about whether an electric-drive vehicle is right for them.

  3. The effect of falling market concentration on prices, generator behaviour and productive efficiency in the England and Wales electricity market

    E-Print Network [OSTI]

    Sweeting, Andrew

    2001-01-01

    A universal prediction of the various oligopoly models used to predict and explain behaviour in the England and Wales (E&W) electricity wholesale market is that divestiture of plants by the two large incumbent generators ...

  4. ELECTRIC CO-HEATING: A METHOD FOR EVALUATING SEASONAL HEATING EFFICIENCIES AND HEAT LOSS RATES IN DWELLINGS

    E-Print Network [OSTI]

    Modera, M.P.

    2012-01-01

    the measured values for heat transmission and air leakagethe contribution by heat transmission alone through theheating efficiency, heat transmission coefficient and air

  5. An Interview with Professor Alexandra von Meier on an Efficient Electric Grid: Improving Visibility and Integrating Renewable Sources

    E-Print Network [OSTI]

    Chowdhary, Harshika; Gill, Manraj; McGuinness, Philippa; Miller, Daniel; Patel, Saavan

    2015-01-01

    improving the integration of renewable energy sources intothe incorporation of renewable energy into the pre-existingpretty unique. It spans renewable energy, energy efficiency,

  6. Financial Impact of Energy Efficiency under a Federal Renewable Electricity Standard: Case Study of a Kansas "super-utility"

    E-Print Network [OSTI]

    Cappers, Peter

    2010-01-01

    costs: Combining renewable energy and energy efficiency into2009. European Union’s renewable energy sources and energyKansas: A National Renewable Energy Standard Will Benefit

  7. Demonstration of a Highly Efficient Solid Oxide Fuel Cell Power System Using Adiabatic Steam Reforming and Anode Gas Recirculation

    SciTech Connect (OSTI)

    Powell, Michael R.; Meinhardt, Kerry D.; Sprenkle, Vincent L.; Chick, Lawrence A.; Mcvay, Gary L.

    2012-05-01

    Solid oxide fuel cells (SOFC) are currently being developed for a wide variety of applications because of their high efficiency at multiple power levels. Applications for SOFCs encompass a large range of power levels including 1-2 kW residential combined heat and power applications, 100-250 kW sized systems for distributed generation and grid extension, and MW-scale power plants utilizing coal. This paper reports on the development of a highly efficient, small-scale SOFC power system operating on methane. The system uses adiabatic steam reforming of methane and anode gas recirculation to achieve high net electrical efficiency. The anode exit gas is recirculated and all of the heat and water required for the endothermic reforming reaction are provided by the anode gas emerging from the SOFC stack. Although the single-pass fuel utilization is only about 55%, because of the anode gas recirculation the overall fuel utilization is up to 93%. The demonstrated system achieved gross power output of 1650 to 2150 watts with a maximum net LHV efficiency of 56.7% at 1720 watts. Overall system efficiency could be further improved to over 60% with use of properly sized blowers.

  8. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System

    SciTech Connect (OSTI)

    Staunton, R.H.; Ayers, C.W.; Chiasson, J.N.; Burress, B.A.; Marlino, L.D.

    2006-05-01

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of providing mechanical-drive power for the vehicle. The engine can deliver a peak-power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak-power output of 50 kW over the speed range of 1200-1540 rpm. Together, this engine-motor combination has a specified peak-power output of 82 kW at a vehicle speed of 85 kilometers per hour (km/h). In operation, the 2004 Prius exhibits superior fuel economy compared to conventionally powered automobiles. To acquire knowledge and thereby improve understanding of the propulsion technology used in the 2004 Prius, a full range of design characterization studies were conducted to evaluate the electrical and mechanical characteristics of the 2004 Prius and its hybrid electric drive system. These characterization studies included (1) a design review, (2) a packaging and fabrication assessment, (3) bench-top electrical tests, (4) back-electromotive force (emf) and locked rotor tests, (5) loss tests, (6) thermal tests at elevated temperatures, and most recently (7) full-design-range performance testing in a controlled laboratory environment. This final test effectively mapped the electrical and thermal results for motor/inverter operation over the full range of speeds and shaft loads that these assemblies are designed for in the Prius vehicle operations. This testing was undertaken by the Oak Ridge National Laboratory (ORNL) as part of the U.S. Department of Energy (DOE)-Energy Efficiency and Renewable Energy (EERE) FreedomCAR and Vehicle Technologies (FCVT) program through its vehicle systems technologies subprogram. The thermal tests at elevated temperatures were conducted late in 2004, and this report does not discuss this testing in detail. The thermal tests explored the derating of the Prius motor design if operated at temperatures as high as is normally encountered in a vehicle engine. The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. A separate, comprehensive report on this thermal control study is available [1].

  9. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System

    SciTech Connect (OSTI)

    Staunton, Robert H; Ayers, Curtis William; Chiasson, J. N.; Burress, Timothy A; Marlino, Laura D

    2006-05-01

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of providing mechanical-drive power for the vehicle. The engine can deliver a peak-power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak-power output of 50 kW over the speed range of 1200-1540 rpm. Together, this engine-motor combination has a specified peak-power output of 82 kW at a vehicle speed of 85 kilometers per hour (km/h). In operation, the 2004 Prius exhibits superior fuel economy compared to conventionally powered automobiles. To acquire knowledge and thereby improve understanding of the propulsion technology used in the 2004 Prius, a full range of design characterization studies were conducted to evaluate the electrical and mechanical characteristics of the 2004 Prius and its hybrid electric drive system. These characterization studies included (1) a design review, (2) a packaging and fabrication assessment, (3) bench-top electrical tests, (4) back-electromotive force (emf) and locked rotor tests, (5) loss tests, (6) thermal tests at elevated temperatures, and most recently (7) full-design-range performance testing in a controlled laboratory environment. This final test effectively mapped the electrical and thermal results for motor/inverter operation over the full range of speeds and shaft loads that these assemblies are designed for in the Prius vehicle operations. This testing was undertaken by the Oak Ridge National Laboratory (ORNL) as part of the U.S. Department of Energy (DOE) - Energy Efficiency and Renewable Energy (EERE) FreedomCAR and Vehicle Technologies (FCVT) program through its vehicle systems technologies subprogram. The thermal tests at elevated temperatures were conducted late in 2004, and this report does not discuss this testing in detail. The thermal tests explored the derating of the Prius motor design if operated at temperatures as high as is normally encountered in a vehicle engine. The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. A separate, comprehensive report on this thermal control study is available [1].

  10. Enhanced Light Trapping and Power Conversion Efficiency in Ultrathin Plasmonic Organic Solar Cells: A Coupled Optical-Electrical

    E-Print Network [OSTI]

    Park, Namkyoo

    much attention for the more efficient harvesting of solar energy. Notably, even as the thickness acceptor materials have been envisioned as a promising next generation energy harvesting device dueEnhanced Light Trapping and Power Conversion Efficiency in Ultrathin Plasmonic Organic Solar Cells

  11. Efficient 3D inversion of magnetic data via octree mesh discretization, space-filling curves, and Kristofer Davis and Yaoguo Li, Center for Gravity, Electrical, and Magnetics, Colorado School of Mines, Golden,

    E-Print Network [OSTI]

    , and wavelets Kristofer Davis and Yaoguo Li, Center for Gravity, Electrical, and Magnetics, Colorado SchoolEfficient 3D inversion of magnetic data via octree mesh discretization, space-filling curves

  12. Development of a 5 kW Prototype Coal-Based Fuel Cell

    SciTech Connect (OSTI)

    Chuang, Steven S.C.; Mirzababaei, Jelvehnaz; Rismanchian, Azadeh

    2014-01-20

    The University of Akron Fuel Cell Laboratory pioneered the development of a laboratory scale coal-based fuel cell, which allows the direct use of high sulfur content coal as fuel. The initial research and coal fuel cell technology development (“Coal-based Fuel Cell,” S. S. C. Chuang, PCT Int. Appl. 2006, i.e., European Patent Application, 35 pp. CODEN: PIXXD2 WO 2006028502 A2 20060316) have demonstrated that it is feasible to electrochemically oxidize carbon to CO2, producing electricity. The key innovative concept of this coal-based fuel cell technology is that carbon in coal can be converted through an electrochemical oxidation reaction into manageable carbon dioxide, efficiently generating electricity without involving coal gasification, reforming, and water-gas shift reaction. This study has demonstrated that electrochemical oxidation of carbon can take place on the Ni anode surface and the CO and CO2 product produced can further react with carbon to initiate the secondary reaction. A carbon injection system was developed to inject the solid fuel without bringing air into the anode chamber; a fuel cell stack was developed and tested to demonstrate the feasibility of the fuel cell stack. Further improvement of anode catalyst activity and durability is needed to bring this novel coal fuel cell to a highly efficient, super clean, multi-use electric generation technology, which promises to provide low cost electricity by expanding the utilization of U.S. coal supplies and relieving our dependence on foreign oil.

  13. Randolph EMC- Energy Efficient Home Discount Program

    Broader source: Energy.gov [DOE]

    Randolph Electric Membership Corporation offers a special electric bill discount to members who increase the energy efficiency of homes through the Energy Efficient Home Discount Program. Members...

  14. CPS Energy- Commercial Energy Efficiency Rebates

    Broader source: Energy.gov [DOE]

    CPS Energy, San Antonio's municipal electric utility, offers energy efficiency rebates for commercial electric customers. Rebates are available for several defined energy efficiency improvements,...

  15. Development of Ultra-Efficient Electric Motors Final Technical Report Covering work from April 2002 through September 2007

    SciTech Connect (OSTI)

    Rich Schiferl

    2008-05-30

    High temperature superconducting (HTS) motors offer the potential for dramatic volume and loss reduction compared to conventional, high horspower, industrial motors. This report is the final report on the results of eight research tasks that address some of the issues related to HTS motor development that affect motor efficiency, cost, and reliability.

  16. Defining a Standard Metric for Electricity Savings

    E-Print Network [OSTI]

    Koomey, Jonathan

    2009-01-01

    1991. The Potential for Electricity Efficiency Improvementswww.eia.doe.gov/cneaf/electricity/page/eia860.html>. FigureA STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*,

  17. FRPs for Strengthening and Rehabilitation: Durability Issues K.W. Neale1

    E-Print Network [OSTI]

    Labossière, Pierre

    1 FRPs for Strengthening and Rehabilitation: Durability Issues K.W. Neale1 , P. Labossière2 and M) strengthening and rehabilitation technologies are addressed. A brief overview of some recent research activities accelerated tests, is emphasized. Introduction The needs for civil engineering infrastructure rehabilitation

  18. Demonstration of a 140-GHz 1-kW Confocal Gyro-Traveling-Wave Amplifier

    E-Print Network [OSTI]

    Temkin, Richard J.

    The theory, design, and experimental results of a wideband 140-GHz 1-kW pulsed gyro-traveling-wave amplifier (gyro-TWA) are presented. The gyro-TWA operates in the HE [subscript 06] mode of an overmoded quasi-optical ...

  19. 100 kW CC-OTEC Plant and Deep Ocean water Applications

    E-Print Network [OSTI]

    100 kW CC-OTEC Plant and Deep Ocean water Applications in Kumejima, Okinawa, Japan Katsuya Furugen in Kumejima (Okinawa) Okinawa Prefectural Deep Sea Water Research Center, since 2000 OTEC Demonstration. / 1st Power Generation Test Succeeded Surface Water: 23.5 oC, 330t/h Deep Water: 9.3 oC, 250t/h Power

  20. Midstate Electric Cooperative - Commercial and Industrial Energy...

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

    Commercial and Industrial Energy Efficiency Rebate Program Midstate Electric Cooperative - Commercial and Industrial Energy Efficiency Rebate Program < Back Eligibility Commercial...

  1. Northeast Energy Efficiency Partnerships | Department of Energy

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

    Lead Performer: Northeast Energy Efficiency Partnerships, Lexington, MA Partners: Burlington Electric Department, Cape Light Compact, Connecticut Light and Power, Efficiency...

  2. Defining a Standard Metric for Electricity Savings

    SciTech Connect (OSTI)

    Brown, Marilyn; Akbari, Hashem; Blumstein, Carl; Koomey, Jonathan; Brown, Richard; Calwell, Chris; Carter, Sheryl; Cavanagh, Ralph; Chang, Audrey; Claridge, David; Craig, Paul; Diamond, Rick; Eto, Joseph H.; Fulkerson, William; Gadgil, Ashok; Geller, Howard; Goldemberg, Jose; Goldman, Chuck; Goldstein, David B.; Greenberg, Steve; Hafemeister, David; Harris, Jeff; Harvey, Hal; Heitz, Eric; Hirst, Eric; Hummel, Holmes; Kammen, Dan; Kelly, Henry; Laitner, Skip; Levine, Mark; Lovins, Amory; Masters, Gil; McMahon, James E.; Meier, Alan; Messenger, Michael; Millhone, John; Mills, Evan; Nadel, Steve; Nordman, Bruce; Price, Lynn; Romm, Joe; Ross, Marc; Rufo, Michael; Sathaye, Jayant; Schipper, Lee; Schneider, Stephen H; Sweeney, James L; Verdict, Malcolm; Vorsatz, Diana; Wang, Devra; Weinberg, Carl; Wilk, Richard; Wilson, John; Worrell, Ernst

    2009-03-01

    The growing investment by governments and electric utilities in energy efficiency programs highlights the need for simple tools to help assess and explain the size of the potential resource. One technique that is commonly used in this effort is to characterize electricity savings in terms of avoided power plants, because it is easier for people to visualize a power plant than it is to understand an abstraction such as billions of kilowatt-hours. Unfortunately, there is no standardization around the characteristics of such power plants. In this letter we define parameters for a standard avoided power plant that have physical meaning and intuitive plausibility, for use in back-of-the-envelope calculations. For the prototypical plant this article settles on a 500 MW existing coal plant operating at a 70percent capacity factor with 7percent T&D losses. Displacing such a plant for one year would save 3 billion kW h per year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metric is the Rosenfeld, in keeping with the tradition among scientists of naming units in honor of the person most responsible for the discovery and widespread adoption of the underlying scientific principle in question--Dr. Arthur H. Rosenfeld.

  3. Aalborg Universitet Coal-firing and biomass-firing in a 150kW swirl stabilized burner flow reactor

    E-Print Network [OSTI]

    Berning, Torsten

    Aalborg Universitet Coal-firing and biomass-firing in a 150kW swirl stabilized burner flow reactor). Coal-firing and biomass-firing in a 150kW swirl stabilized burner flow reactor. Poster session-fired boiler could be far more challenging beca se b rner aerod namicsmore challenging, because burner

  4. Advanced Hybrid Propulsion and Energy Management System for High Efficiency, Off Highway, 240 Ton Class, Diesel Electric Haul Trucks

    SciTech Connect (OSTI)

    Richter, Tim; Slezak, Lee; Johnson, Chris; Young, Henry; Funcannon, Dan

    2008-12-31

    The objective of this project is to reduce the fuel consumption of off-highway vehicles, specifically large tonnage mine haul trucks. A hybrid energy storage and management system will be added to a conventional diesel-electric truck that will allow capture of braking energy normally dissipated in grid resistors as heat. The captured energy will be used during acceleration and motoring, reducing the diesel engine load, thus conserving fuel. The project will work towards a system validation of the hybrid system by first selecting an energy storage subsystem and energy management subsystem. Laboratory testing at a subscale level will evaluate these selections and then a full-scale laboratory test will be performed. After the subsystems have been proven at the full-scale lab, equipment will be mounted on a mine haul truck and integrated with the vehicle systems. The integrated hybrid components will be exercised to show functionality, capability, and fuel economy impacts in a mine setting.

  5. Conservation The Role of ElectricThe Role of Electric

    E-Print Network [OSTI]

    To Hear Energy Efficiency and the Current PNW ResourceEnergy Efficiency and the Current PNW Resource Mix Council Energy Efficiency ResourcesEnergy Efficiency Resources Significantly Reduced ProjectedNorthwest Power and Conservation Council The Role of ElectricThe Role of Electric Energy Efficiency

  6. Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions

    E-Print Network [OSTI]

    Darghouth, Naim

    2014-01-01

    efficiency of real-time electricity pricing. Energy JournalTime-varying retail electricity prices: Theory and practice.Electricity Deregulation: Choices and Challenges.

  7. Study of Energy and Demand Savings on a High Efficiency Hydraulic Pump System with Infinite Turn Down Technology (ITDT) 

    E-Print Network [OSTI]

    Sfeir, R. A.; Kanungo, A.; Liou, S.

    2005-01-01

    Detailed field measurement and verification of electrical energy (kWh) and demand (kW) savings is conducted on an injection molding machine used in typical plastic manufacturing facility retrofitted with a high ...

  8. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01

    Designing Markets for Electricity, Wiley-IEEE Press. CEC (in Major Drivers in U.S. Electricity Markets, NREL/CP-620-and fuel efficiency and electricity demand assumptions used

  9. Premium Efficient Motors 

    E-Print Network [OSTI]

    Moser, P. R.

    1984-01-01

    MOTORS Paul R. Moser Baldor Electric Co. Fort Smith, Arkansas , ABSTRACT Premium efficient motors are available which convert electrical energy into mechanical energy with fewer losses than the more standard motors. The fewer losses...

  10. Using Electricity",,,"Electricity Consumption",,,"Electricity...

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

    . Total Electricity Consumption and Expenditures, 2003" ,"All Buildings* Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of Buildings...

  11. Illinois Municipal Electric Agency - Electric Efficiency Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nA Guide to TappingWORKof71CommercialThis documentMANAGEMENT OF

  12. System Description for the KW Basin Integrated Water Treatment System (IWTS) (70.3)

    SciTech Connect (OSTI)

    DERUSSEAU, R.R.

    2000-04-18

    This is a description of the system that collects and processes the sludge and radioactive ions released by the spent nuclear fuel (SNF) processing operations conducted in the 105 KW Basin. The system screens, settles, filters, and conditions the basin water for reuse. Sludge and most radioactive ions are removed before the water is distributed back to the basin pool. This system is part of the Spent Nuclear Fuel Project (SNFP).

  13. OVERVIEW OF CAMPUS ELECTRICAL SYSTEMS

    E-Print Network [OSTI]

    OVERVIEW OF CAMPUS ELECTRICAL SYSTEMS University of Minnesota #12;Energy Management Principles 4 Electrical Engineers Buildings Services (~220) Manholes (~400) Cable Ductbank 130 Generators efficient opportunities and balance upfront investment costs with long-term savings potential 1 #12;Electric

  14. Energy 101: Electric Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE)

    This edition of Energy 101 highlights the benefits of electric vehicles, including improved fuel efficiency, reduced emissions, and lower maintenance costs.

  15. 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.

  16. Energy Efficiency Resource Standard

    Office of Energy Efficiency and Renewable Energy (EERE)

    Washington voters passed Initiative 937 in 2006, creating a renewable energy standard and an energy efficiency resource standard for the state's electric utilities. Initiative 937, enacted as th...

  17. Literature Cited and Selected Bibliography Able, K.W. 1999. Measures of juvenile fish habitat quality: examples from a

    E-Print Network [OSTI]

    Chen, Changsheng

    . Rutgers University Press. New Brunswick, NJ. 342 p. Able, K.W., J.P. Manderson, and A.L. Studholme. 1999 in Hydraulic Computations. 1988. Turbulence modeling of surface flow and transport. Journal of Hydraulic

  18. CSEM WP 135 Has Restructuring Improved Operating Efficiency

    E-Print Network [OSTI]

    California at Berkeley. University of

    CSEM WP 135 Has Restructuring Improved Operating Efficiency at US Electricity Generating Plants Operating Efficiency at US Electricity Generating Plants? Kira Markiewicz UC Berkeley, Haas School assesses the impact of electricity industry restructuring on generating plant operating efficiency. Cost

  19. Wind Turbine Generator System Acoustic Noise Test Report for the Gaia Wind 11-kW Wind Turbine

    SciTech Connect (OSTI)

    Huskey, A.

    2011-11-01

    This report details the acoustic noise test conducted on the Gaia-Wind 11-kW wind turbine at the National Wind Technology Center. The test turbine is a two- bladed, downwind wind turbine with a rated power of 11 kW. The test turbine was tested in accordance with the International Electrotechnical Commission standard, IEC 61400-11 Ed 2.1 2006-11 Wind Turbine Generator Systems -- Part 11 Acoustic Noise Measurement Techniques.

  20. Estimating the Energy Use and Efficiency Potential of U.S. Data Centers

    E-Print Network [OSTI]

    Masanet, Eric R.

    2012-01-01

    efficient to baseline storage electricity use (? ??? ) equalof efficient to baseline storage electricity use equals 0.65ratio, baseline storage device electricity use, and assumed

  1. 4 kW Test of Solid Oxide Electrolysis Stacks with Advanced Electrode-Supported Cells

    SciTech Connect (OSTI)

    J. E. O'Brien; X. Zhang; G. K. Housley; L. Moore-McAteer; G. Tao

    2012-06-01

    A new test stand has been developed at the Idaho National Laboratory for multi-kW testing of solid oxide electrolysis stacks. This test stand will initially be operated at the 4 KW scale. The 4 kW tests will include two 60-cell stacks operating in parallel in a single hot zone. The stacks are internally manifolded with an inverted-U flow pattern and an active area of 100 cm2 per cell. Process gases to and from the two stacks are distributed from common inlet/outlet tubing using a custom base manifold unit that also serves as the bottom current collector plate. The solid oxide cells incorporate a negative-electrode-supported multi-layer design with nickel-zirconia cermet negative electrodes, thin-film yttria-stabilized zirconia electrolytes, and multi-layer lanthanum ferrite-based positive electrodes. Treated metallic interconnects with integral flow channels separate the cells and electrode gases. Sealing is accomplished with compliant mica-glass seals. A spring-loaded test fixture is used for mechanical stack compression. Due to the power level and the large number of cells in the hot zone, process gas flow rates are high and heat recuperation is required to preheat the cold inlet gases upstream of the furnace. Heat recuperation is achieved by means of two inconel tube-in-tube counter-flow heat exchangers. A current density of 0.3 A/cm2 will be used for these tests, resulting in a hydrogen production rate of 25 NL/min. Inlet steam flow rates will be set to achieve a steam utilization value of 50%. The 4 kW test will be performed for a minimum duration of 1000 hours in order to document the long-term durability of the stacks. Details of the test apparatus and initial results will be provided.

  2. Power to the Plug: An Introduction to Energy, Electricity, Consumption...

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

    to the Plug: An Introduction to Energy, Electricity, Consumption, and Efficiency Power to the Plug: An Introduction to Energy, Electricity, Consumption, and Efficiency Below is...

  3. Low-Cost Production of Hydrogen and Electricity | Department...

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

    electrical efficiency of more than 50%. The high operating temperature of these specific fuel cells allows for a higher electrical efficiency than lower temperature fuel cells,...

  4. Energy 101: Electric Vehicles

    ScienceCinema (OSTI)

    None

    2013-05-29

    This edition of Energy 101 highlights the benefits of electric vehicles, including improved fuel efficiency, reduced emissions, and lower maintenance costs. For more information on electric vehicles from the Office of Energy Efficiency and Renewable Energy, visit the Vehicle Technologies Program website: http://www1.eere.energy.gov/vehiclesandfuels/

  5. Office of Energy Efficiency and Renewable Energy Fiscal Year...

    Energy Savers [EERE]

    Renewable Electricity Generation Office of Energy Efficiency and Renewable Energy Fiscal Year 2014 Budget Rollout - Renewable Electricity Generation Office of Energy Efficiency and...

  6. Automotive Fuel Efficiency Improvement via Exhaust Gas Waste...

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

    Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Automotive Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Working...

  7. Making more efficient fuel cells 08.09.2009 -Bacteria that generate significant amounts of electricity could be used in microbial fuel cells to provide

    E-Print Network [OSTI]

    Lovley, Derek

    to electricity. Professor Derek Lovley from the University of Massachusetts, USA isolated bacteria with large of electricity could be used in microbial fuel cells to provide power in remote environments or to convert waste electricity. The researchers found large quantities of pilin, a protein that makes the tiny fibres

  8. Thermoelectrics Combined with Solar Concentration for Electrical and Thermal Cogeneration

    E-Print Network [OSTI]

    Jackson, Philip Robert

    2012-01-01

    hours, since electricity storage is rather inefficient.efficient than electricity storage, solar thermal becomes ato generate electricity. Since heat storage is more

  9. Using Electricity",,,"Electricity Consumption",,,"Electricity...

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

    A. Total Electricity Consumption and Expenditures for All Buildings, 2003" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of...

  10. Electricity",,,"Electricity Consumption",,,"Electricity Expenditures...

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

    C9. Total Electricity Consumption and Expenditures, 1999" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of Buildings...

  11. Electricity",,,"Electricity Consumption",,,"Electricity Expenditures...

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

    DIV. Total Electricity Consumption and Expenditures by Census Division, 1999" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number...

  12. Minnesota Power- Solar-Electric (PV) Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Minnesota Power offers a rebate of $1,000 per kilowatt (kW) DC for grid-connected solar-electric (PV) systems, with a maximum award of $20,000 per customer or 60% installed costs per customer. This...

  13. Global Assessment of Hydrogen Technologies – Task 5 Report Use of Fuel Cell Technology in Electric Power Generation

    SciTech Connect (OSTI)

    Fouad, Fouad H.; Peters, Robert W.; Sisiopiku, Virginia P.; Sullivan Andrew J.; Ahluwalia, Rajesh K.

    2007-12-01

    The purpose of this work was to assess the performance of high temperature membranes and observe the impact of different parameters, such as water-to-carbon ratio, carbon formation, hydrogen formation, efficiencies, methane formation, fuel and oxidant utilization, sulfur reduction, and the thermal efficiency/electrical efficiency relationship, on fuel cell performance. A 250 KW PEM fuel cell model was simulated [in conjunction with Argonne National Laboratory (ANL) with the help of the fuel cell computer software model (GCtool)] which would be used to produce power of 250 kW and also produce steam at 120oC that can be used for industrial applications. The performance of the system was examined by estimating the various electrical and thermal efficiencies achievable, and by assessing the effect of supply water temperature, process water temperature, and pressure on thermal performance. It was concluded that increasing the fuel utilization increases the electrical efficiency but decreases the thermal efficiency. The electrical and thermal efficiencies are optimum at ~85% fuel utilization. The low temperature membrane (70oC) is unsuitable for generating high-grade heat suitable for useful cogeneration. The high temperature fuel cells are capable of producing steam through 280oC that can be utilized for industrial applications. Increasing the supply water temperature reduces the efficiency of the radiator. Increasing the supply water temperature beyond the dew point temperature decreases the thermal efficiency with the corresponding decrease in high-grade heat utilization. Increasing the steam pressure decreases the thermal efficiency. The environmental impacts of fuel cell use depend upon the source of the hydrogen rich fuel used. By using pure hydrogen, fuel cells have virtually no emissions except water. Hydrogen is rarely used due to problems with storage and transportation, but in the future, the growth of a “solar hydrogen economy” has been projected. Photovoltaic cells convert sunlight into electricity. This electricity can be used to split water (electrolysis) into hydrogen and oxygen, to store the sun's energy as hydrogen fuel. In this scenario, fuel cell powered vehicles or generating stations have no real emissions of greenhouse or acid gases, or any other pollutants. It is predominantly during the fuel processing stage that atmospheric emissions are released by a fuel cell power plant. When methanol from biomass is used as a fuel, fuel cells have no net emissions of carbon dioxide (CO2, a greenhouse gas) because any carbon released was recently taken from the atmosphere by photosynthetic plants. Any high temperature combustion, such as that which would take place in a spark ignition engine fueled by methanol, produces nitrous oxides (NOx), gases which contribute to acid rain. Fuel cells virtually eliminate NOx emissions because of the lower temperatures of their chemical reactions. Fuel cells, using processed fossil fuels, have emissions of CO2 and sulfur dioxide (SO2) but these emissions are much lower than those from traditional thermal power plants or spark ignition engines due to the higher efficiency of fuel cell power plants. Higher efficiencies result in less fuel being consumed to produce a given amount of electricity or to travel a given distance. This corresponds to lower CO2 and SO2 emissions. Fuel cell power plants also have longer life expectancies and lower maintenance costs than their alternatives.

  14. Assessing the viability of level III electric vehicle rapid-charging stations

    E-Print Network [OSTI]

    Gogoana, Radu

    2010-01-01

    This is an analysis of the feasibility of electric vehicle rapid-charging stations at power levels above 300 kW. Electric vehicle rapid-charging (reaching above 80% state-of-charge in less than 15 minutes) has been ...

  15. Simulation of electricity supply of an Atlantic island by offshore wind turbines and wave

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Simulation of electricity supply of an Atlantic island by offshore wind turbines and wave energy community. Key words: Wave energy, offshore wind turbines, marine energy 1 Introduction Marine renewables installations of a few kW like small wind turbines or photovoltaic cells installed to provide electricity

  16. East Central Electric Cooperative- Residential Rebate Program

    Broader source: Energy.gov [DOE]

    East Central Electric Cooperative offers rebates to residential customers to install energy-efficient ground source heat pumps, electric water heaters, and appliances. To qualify for the rebate...

  17. Vehicle Technologies Office: Electrical Machines | Department...

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

    in efficiency, cost, weight, and volume for competitive future electric vehicles. Tesla Motors, a U.S. electric vehicle manufacturer, uses induction motor technology....

  18. Potential Impacts of Plug-in Hybrid Electric Vehicles on Regional Power Generation

    SciTech Connect (OSTI)

    Hadley, Stanton W; Tsvetkova, Alexandra A

    2008-01-01

    Plug-in hybrid electric vehicles (PHEVs) are being developed around the world, with much work aiming to optimize engine and battery for efficient operation, both during discharge and when grid electricity is available for recharging. However, the general expectation has been that the grid will not be greatly affected by the use of PHEVs because the recharging will occur during off-peak hours, or the number of vehicles will grow slowly enough so that capacity planning will respond adequately. This expectation does not consider that drivers will control the timing of recharging, and their inclination will be to plug in when convenient, rather than when utilities would prefer. It is important to understand the ramifications of adding load from PHEVs onto the grid. Depending on when and where the vehicles are plugged in, they could cause local or regional constraints on the grid. They could require the addition of new electric capacity and increase the utilization of existing capacity. Usage patterns of local distribution grids will change, and some lines or substations may become overloaded sooner than expected. Furthermore, the type of generation used to meet the demand for recharging PHEVs will depend on the region of the country and the timing of recharging. This paper analyzes the potential impacts of PHEVs on electricity demand, supply, generation structure, prices, and associated emission levels in 2020 and 2030 in 13 regions specified by the North American Electric Reliability Corporation (NERC) and the U.S. Department of Energy's (DOE's) Energy Information Administration (EIA), and on which the data and analysis in EIA's Annual Energy Outlook 2007 are based (Figure ES-1). The estimates of power plant supplies and regional hourly electricity demand come from publicly available sources from EIA and the Federal Energy Regulatory Commission. Electricity requirements for PHEVs are based on analysis from the Electric Power Research Institute, with an optimistic projection of 25% market penetration by 2020, involving a mixture of sedans and sport utility vehicles. The calculations were done using the Oak Ridge Competitive Electricity Dispatch (ORCED) model, a model developed over the past 12 years to evaluate a wide variety of critical electricity sector issues. Seven scenarios were run for each region for 2020 and 2030, for a total of 182 scenarios. In addition to a base scenario of no PHEVs, the authors modeled scenarios assuming that vehicles were either plugged in starting at 5:00 p.m. (evening) or at 10:00 p.m.(night) and left until fully charged. Three charging rates were examined: 120V/15A (1.4 kW), 120V/20A (2 kW), and 220V/30A (6 kW). Most regions will need to build additional capacity or utilize demand response to meet the added demand from PHEVs in the evening charging scenarios, especially by 2030 when PHEVs have a larger share of the installed vehicle base and make a larger demand on the system. The added demands of evening charging, especially at high power levels, can impact the overall demand peaks and reduce the reserve margins for a region's system. Night recharging has little potential to influence peak loads, but will still influence the amount and type of generation.

  19. Highly efficient organic light-emitting diodes with a silole-based compound Center for Display Research, Department of Electrical and Electronic Engineering, The Hong Kong

    E-Print Network [OSTI]

    the emission efficiency of organic light-emitting diodes OLED . For con- ventional undoped small-molecule OLEDHighly efficient organic light-emitting diodes with a silole-based compound H. Y. Chen Center Efficient light emission was obtained in a silole-based organic light-emitting diode. A high luminous

  20. The WEI6K, a 6-kW 7-m Small Wind Turbine: Final Technical Report

    SciTech Connect (OSTI)

    Wetzel, Kyle K.; McCleer, Patrick J.; Hahlbeck, Edwin C.; DOE Project Office - Keith Bennett

    2006-07-21

    This project was selected by the U.S. Department of Energy under a DOE solicitation “Low Wind Speed Technology for Small Turbine Development.” The objective of this project has been to design a new small wind turbine with improved cost, reliability and performance in grid-connected residential and small business applications, in order to achieve the overall DOE goal of cost effectiveness in Class 3 wind resources that can now be achieved in Class 5 resources. The scope of work for this project has been to complete the preliminary design of an improved small wind turbine, including preliminary loads and strength analyses; analysis and design of all major components; systems integration and structural dynamic analysis; estimation of life-cycle cost of energy; and design documentation and review. The project did not entail hardware fabrication or testing. The WEI6K Turbine resulting from this project is an upwind horizontal-axis wind turbine rated at 6 kW. It features a 3-blade 7-m diameter rotor. The generator is a direct-drive permanent magnet synchronous machine generating 3-phase power at 240 VAC. The turbine is maintained oriented in to the wind via active yaw control using electromechanical servos. Power is regulated with active blade pitch control. The turbine is presently designed to be placed on a 100-foot (30m) tower. The turbine is predicted to generate electricity at a levelized cost of energy (COE) between 7.3 and 8.9 ¢/kWh at an IEC Class II site, with an average wind speed of 8.5 m/s at hub height, depending upon whether the customer uses a guyed truss tower (the lower figure) or a monopole tower. For the NREL Reference Site, with a mean wind speed of 5.35 m/s at 10 m height, the turbine would generate at a levelized cost of energy of between 9.7 and 11.9 ¢/kWh. The lowest of these numbers is presently competitive with retail electricity rates in most of the country. The 8.9 ¢/kWh is still competitive with retail rates in many regions of the country with high electricity costs. The study further concludes that several design changes could shave 10-14% from the cost of energy determined in the preliminary design. These changes include a new tower design that offers tilt-up capability without guy wires and takes better advantage of the lowered loads produced by pitch control; design a family of airfoils more appropriate for pitch regulation on a turbine of this size; tune the pitch controller properly to minimize shedding of power during turbulent operation in the transition from Region 2 to 3; value engineer the pitch system to shave costs, including consideration of a collective pitch system; and refine the design of the hub and main frame castings to minimize weight and cost. We are generally encouraged by the results. These preliminary numbers show that we can produce a turbine that is competitive with retail electric rates at relatively windy IEC Class II sites. With further improvements in the design, we believe the turbine could be competitive at sites with lesser wind resource.

  1. High-power beam injectors for 100 KW free-electron lasers

    SciTech Connect (OSTI)

    Todd, A. M.; Wood R. L.; Bluem, H.; Young, L. M.; Wiseman, M.; Schultheiss, T.; Schrage, D. L.; Russell, S. J.; Rode, C. H.; Rimmer, R.; Nguyen, D. C.; Kelley, J. P.; Kurennoy, S.; wood, r

    2003-01-01

    A key technology issue on the path to high-power FEL operation is the demonstration of reliable, high-brightness, high-power injector operation. We describe two ongoing programs to produce 100 mA injectors as drivers for 100 kW free-electron lasers. In one approach, in collaboration with the Thomas Jefferson National Accelerator Facility, we are fabricating a 750 MHz superconducting RF cryomodule that will be integrated with a room-temperature DC photocathode gun and tested at the Laboratory. In the other approach, in collaboration with Los Alamos National Laboratory, a high-current 700 MHz, normal-conducting, RF photoinjector is being designed and will undergo thermal management testing at the Laboratory. We describe the design, the projected performance and the status of both injectors.

  2. Plasma and Electrode Emissions from a 1 kW Hydrogen-Nitrogen Arcjet Thruster

    SciTech Connect (OSTI)

    Huang Heji; Pan Wenxia; Meng Xian; Wu Chengkang

    2010-05-21

    Arc root behavior affects the energy transfer and nozzle erosion in an arcjet thruster. To investigate the development of arc root attachment in 1 kW class N{sub 2} and H{sub 2}-N{sub 2} arcjet thrusters from the time of ignition to the stably working condition, a kinetic series of end-on view images of the nozzle obtained by a high-speed video camera was analyzed. The addition of hydrogen leads to higher arc voltage levels and the determining factor for the mode of arc root attachment was found to be the nozzle temperature. At lower nozzle temperatures, constricted type attachment with unstable motions of the arc root was observed, while a fully diffused and stable arc root was observed at elevated nozzle temperatures.

  3. Management Of Hanford KW Basin Knockout Pot Sludge As Spent Nuclear Fuel

    SciTech Connect (OSTI)

    Raymond, R. E. [CH2M HIll Plateau Remediation Company, Richland, WA (United States); Evans, K. M. [AREVA, Avignon (France)

    2012-10-22

    CH2M HILL Plateau Remediation Company (CHPRC) and AREVA Federal Services, LLC (AFS) have been working collaboratively to develop and deploy technologies to remove, transport, and interim store remote-handled sludge from the 10S-K West Reactor Fuel Storage Basin on the U.S. Department of Energy (DOE) Hanford Site near Richland, WA, USA. Two disposal paths exist for the different types of sludge found in the K West (KW) Basin. One path is to be managed as Spent Nuclear Fuel (SNF) with eventual disposal at an SNF at a yet to be licensed repository. The second path will be disposed as remote-handled transuranic (RH-TRU) waste at the Waste Isolation Pilot Plant (WIPP) in Carlsbad, NM. This paper describes the systems developed and executed by the Knockout Pot (KOP) Disposition Subproject for processing and interim storage of the sludge managed as SNF, (i.e., KOP material).

  4. Sampling and Analysis Plan for canister liquid and gas sampling at 105-KW fuel storage basin

    SciTech Connect (OSTI)

    Harris, R.A.; Green, M.A.; Makenas, B.J.; Trimble, D.J.

    1995-03-01

    This Sampling and Analysis Plan (SAP) details the sampling and analyses to be performed on fuel canisters transferred to the Weasel Pit of the 105-KW fuel storage basin. The radionuclide content of the liquid and gas in the canisters must be evaluated to support the shipment of fuel elements to the 300 Area in support of the fuel characterization studies (Abrefah, et al. 1994, Trimble 1995). The following sections provide background information and a description of the facility under investigation, discuss the existing site conditions, present the constituents of concern, outline the purpose and scope of the investigation, outline the data quality objectives (DQO), provide analytical detection limit, precision, and accuracy requirements, and address other quality assurance (QA) issues.

  5. Spent fuel dry storage technology development: fuel temperature measurements under imposed dry storage conditions (I kW PWR spent fuel assembly)

    SciTech Connect (OSTI)

    Unterzuber, R.; Wright, J.B.

    1980-09-01

    A spent fuel assembly temperature test under imposed dry storage conditions was conducted at the Engine Maintenance Assembly and Disassembly (E-MAD) facility on the Nevada Test Site in support of spent fuel dry storage technology development. This document presents the test data and results obtained from an approximately 1.0 kW decay heat level PWR spent fuel assembly. A spent fuel test apparatus was designed to utilize a representative stainless steel spent fuel canister, a canister lid containing internal temperature instrumentation to measure fuel cladding temperatures, and a carbon steel liner that encloses the canister and lid. Electrical heaters along the liner length, on the lid, and below the canister are used to impose dry storage canister temperature profiles. Temperature instrumentation is provided on the liner and canister. The liner and canister are supported by a test stand in one of the large hot cells (West Process Cell) inside E-MAD. Fuel temperature measurements have been performed using imposed canister temperature profiles from the electrically heated and spent fuel drywell tests being conducted at E-MAD as well as for four constant canister temperature profiles, each with a vacuum, helium and air backfill. Computer models have been utilized in conjunction with the test to predict the thermal response of the fuel cladding. Computer predictions are presented, and they show good agreement with the test data.

  6. Spent fuel dry storage technology development: fuel temperature measurements under imposed dry storage conditions (1.4 kW PWR spent fuel assembly)

    SciTech Connect (OSTI)

    Unterzuber, R.

    1981-09-01

    A spent fuel assembly temperature test under imposed dry storage conditions was conducted at the Engine Maintenance Assembly and Disassembly (E-MAD) facility on the Nevada Test Site in support of spent fuel dry storage technology development. This document presents the test data and results obtained from an approximately 1.4 kW decay heat level PWR spent fuel assembly. A spent fuel test apparatus was designed to utilize a stainless steel canister representative of actual fuel canisters, a canister lid containing internal temperature instrumentation to measure fuel cladding temperatures, and a carbon steel liner that encloses the canister and lid. Electrical heaters along the liner length, on the lid, and below the canister are used to impose dry storage canister temperature profiles. Temperature instrumentation is provided on the liner and canister. The liner and canister are supported by a test stand in one of the large hot cells (West Process Cell) inside E-MAD. Fuel temperature measurements have been performed using imposed canister temperature profiles from the electrically heated and spent fuel near-surface drywell tests being conducted at E-MAD, the spent fuel deep geologic storage test being conducted in Climax granite on the Nevada Test Site, and for five constant canister temperature profiles, each with a vacuum, helium and air backfill. Computer models have been utilized in conjunction with the test to predict the thermal response of the fuel cladding. Computer predictions are presented, and they show good agreement with the test data.

  7. Avoid Nuisance Tripping with Premium Efficiency Motors

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

    Avoid Nuisance Tripping with Premium Efficiency Motors In most cases, upgrading to premium efficiency motors has no noticeable impact on the electrical system. However, in rare...

  8. Mississippi Public Service Commission Adopts Energy Efficiency...

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

    approved new energy efficiency rules for electric and natural gas utility companies to offer customers several pathways to increase energy efficiency. According to the PSC, the...

  9. Saving Electricity | Department of Energy

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

    we use more electricity in our homes, electric bills rise. Efficient products and energy-saving strategies can help you save money and energy at home. In addition, you can also...

  10. Writing Motor Specifications - How to Include Efficiency 

    E-Print Network [OSTI]

    Quartermaine, B. J.

    1980-01-01

    The escalating cost of electric power coupled with the rapid depletion of our non-renewable resources makes consideration of motor efficiency good sense both from economic and conservation viewpoints. The efficiency of an electric motor can...

  11. A Framework for Comparative Assessments of Energy Efficiency Policy Measures

    E-Print Network [OSTI]

    Blum, Helcio

    2012-01-01

    Library, Consortium for Energy Efficiency, Boston, MA, USA.M et al (2008): Energy Efficiency: The First Fuel for a2007): Vermont Electric Energy Efficiency Potential Study -

  12. (Electric and Gas) Residential Rebate Program

    Broader source: Energy.gov [DOE]

    The Energize CT in coordination with participating utilities offers various rebates for energy efficient electric and natural gas equipment.  

  13. Pedernales Electric Cooperative- HVAC Rebate Program

    Broader source: Energy.gov [DOE]

    Pedernales Electric Cooperative offers equipment rebates to its members who install energy efficient HVAC equipment. Eligible equipment includes:

  14. Development of 8 kWh Zinc bromide battery as a precursor of battery for electric power storage

    SciTech Connect (OSTI)

    Fujii, T.; Ando, Y.; Fujii, E.; Hirotu, A.; Ito, H.; Kanazashi, M.; Misaki, H.; Yamamoto, A.

    1984-08-01

    Zinc bromide battery is characterized with its room temperature operation, simple construction and easy maintenance. After four years' research and development of electrode materials, electrolyte composition, battery stack construction and other components, we prepared 1 kW class (8 kWh) battery for the first interim official evaluation. This battery showed a good and stable energy efficiency of 80% after 130 cycles of 1.25 kW 8 hours charge and 1.0 kW 8 hours discharge.

  15. Interactions between Energy Efficiency Programs funded under the Recovery Act and Utility Customer-Funded Energy Efficiency Programs

    E-Print Network [OSTI]

    Goldman, Charles A.

    2011-01-01

    Energy Efficiency and Renewable Energy, Weatherization andEfficiency and Renewable Energy and Office of ElectricityEnergy Efficiency and Renewable Energy, Weatherization and

  16. Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation

    E-Print Network [OSTI]

    Sanders, Seth

    Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation Mike He on the design of a Stirling engine for distributed solar thermal ap- plications. In particular, we design for experimentation. Stirling engines can have broad significance and technological advantages for distributed

  17. 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.

  18. Energy Efficiency Resource Standards

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Illinois Power Agency Act (IPAA), enacted in 2007, created energy efficiency and demand response programs in Illinois. Under the IPAA, electric utilities are required to demonstrate 2% annual...

  19. Energy Efficiency Trust Fund

    Office of Energy Efficiency and Renewable Energy (EERE)

    Additional funds may be accumulated through non-compliance fees as part of the Energy Efficiency Portfolio Standard (EEPS). For both natural gas and electric utilities, failure to submit an energ...

  20. Sixth Northwest Conservation and Electric Power Plan Chapter 1: Introduction

    E-Print Network [OSTI]

    ............................................................................................................................ 7 Electricity Demand electricity needs. The Act recognizes that the demand for electricity is derived from the need for services designates efficiency improvements as the highest-priority resource for meeting electricity demands and gives

  1. Solar Energy Grid Integration Systems. Final Report of the Princeton Power Systems Development of the 100kW Demand Response Inverter.

    SciTech Connect (OSTI)

    Bower, Ward Isaac; Heavener, Paul (Princeton Power Systems, Inc., Princeton, NJ); Sena-Henderson, Lisa; Hammell, Darren (Princeton Power Systems, Inc., Princeton, NJ); Holveck, Mark (Princeton Power Systems, Inc., Princeton, NJ); David, Carolyn; Akhil, Abbas Ali; Gonzalez, Sigifredo

    2012-01-01

    Initiated in 2008, the Solar Energy Grid Integration (SEGIS) program is a partnership involving the U.S. Department of Energy, Sandia National Laboratories, electric utilities, academic institutions and the private sector. Recognizing the need to diversify the nation's energy portfolio, the SEGIS effort focuses on specific technologies needed to facilitate the integration of large-scale solar power generation into the nation's power grid Sandia National Laboratories (SNL) awarded a contract to Princeton Power Systems, Inc., (PPS) to develop a 100kW Advanced AC-link SEGIS inverter prototype under the Department of Energy Solar Energy Technologies Program for near-term commercial applications. This SEGIS initiative emphasizes the development of advanced inverters, controllers, communications and other balance-of-system components for photovoltaic (PV) distributed power applications. The SEGIS Stage 3 Contract was awarded to PPS on July 28, 2010. PPS developed and implemented a Demand Response Inverter (DRI) during this three-stage program. PPS prepared a 'Site Demonstration Conference' that was held on September 28, 2011, to showcase the cumulative advancements. This demo of the commercial product will be followed by Underwriters Laboratories, Inc., certification by the fourth quarter of 2011, and simultaneously the customer launch and commercial production sometime in late 2011 or early 2012. This final report provides an overview of all three stages and a full-length reporting of activities and accomplishments in Stage 3.

  2. Electrical energy and demand savings from a geothermal heat pump energy savings performance contract at Ft. Polk, LA

    SciTech Connect (OSTI)

    Shonder, J.A.; Hughes, P.J.

    1997-06-01

    At Fort Polk, LA the space conditioning systems of an entire city (4,003 military family housing units) have been converted to geothermal heat pumps (GHP) under an energy savings performance contract. At the same time, other efficiency measures such as compact fluorescent lights (CFLs), low-flow hot water outlets, and attic insulation were installed. Pre- and post-retrofit data were taken at 15-minute intervals on energy flows through the electrical distribution feeders that serve the family housing areas of the post. 15-minute interval data was also taken on energy use from a sample of the residences. This paper summarizes the electrical energy and demand savings observed in this data. Analysis of feeder-level data shows that for a typical year, the project will result in a 25.6 million kWh savings in electrical energy use, or 32.4% of the pre-retrofit electrical consumption in family housing. Results from analysis of building-level data compare well with this figure. Analysis of feeder-level data also shows that the project has resulted in a reduction of peak electrical demand of 6,541 kW, which is 39.6% of the pre-retrofit peak electrical demand. In addition to these electrical savings, the facility is also saving an estimated 260,000 therms per year of natural gas. It should be noted that the energy savings presented in this document are the apparent energy savings observed in the monitored data, and are not to be confused with the contracted energy savings used as the basis for payments. To determine the contracted energy savings, the apparent energy savings may require adjustments for such things as changes in indoor temperature performance criteria, additions of ceiling fans, and other factors.

  3. Estimating the Cost and Energy Efficiency of a Solar Water Heater...

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

    Solar water heaters are more efficient the gas or electric heaters. | Chart credit ENERGY STAR Solar water heaters are more efficient the gas or electric heaters. | Chart credit...

  4. Wind Turbinie Generator System Power Performance Test Report for the Mariah Windspire 1-kW Wind Turbine

    SciTech Connect (OSTI)

    Huskey, A.; Bowen, A.; Jager, D.

    2009-12-01

    This report summarizes the results of a power performance test that NREL conducted on the Mariah Windspire 1-kW wind turbine. During this test, two configurations were tested on the same turbine. In the first configuration, the turbine inverter was optimized for power production. In the second configuration, the turbine inverter was set for normal power production. In both configurations, the inverter experienced failures and the tests were not finished.

  5. Modeling electrical conductivity for earth media with macroscopic fluid-filled fractures

    E-Print Network [OSTI]

    Berryman, J.G.

    2014-01-01

    C. and Kennedy W. D. , 1994, Electrical efficiency – A porefor interpreting the electrical properties of reservoirSupport of the project “ Electrical Conductivity of Fluid-

  6. Design and Construction of a 500 KW CW, 400 MHZ Klystron To Be Used As RF Power Source For LHC/RF Component Tests

    SciTech Connect (OSTI)

    Pearson, Chris

    2003-05-05

    A 500 kW cw klystron operating at 400 MHz was developed and constructed jointly by CERN and SLAC for use as a high-power source at CERN for testing LHC/RF components such as circulators, RF absorbers and superconducting cavities with their input couplers. The design is a modification of the 353 MHz SLAC PEP-I klystron. More than 80% of the original PEP-I tube parts could thus be incorporated in the LHC test klystron which resulted in lower engineering costs as well as reduced development and construction time. The physical length between cathode plane and upper pole plate was kept unchanged so that a PEP-I tube focusing solenoid, available at CERN, could be re-used. With the aid of the klystron simulation codes JPNDISK and CONDOR, the design of the LHC tube was accomplished, which resulted in a tube with noticeably higher efficiency than its predecessor, the PEP-I klystron. The integrated cavities were redesigned using SUPERFISH and the output coupling circuit, which also required redesigning, was done with the aid of MAFIA. Details of the tube development and test results are presented.

  7. Cost-Effective Energy Efficiency Measures for 15% Above 2009 IECC Code-Compliant House for Residential Buildings in TX 

    E-Print Network [OSTI]

    Kim, H.; Baltazar, J.C.; Haberl, J.; Lewis, C.; Yazdani, B.

    2011-01-01

    for a 2,325 ft2 house. The increased cost would be $25 - $110 for 75% replacements and $50 - $215 for 100% replacements. 17) 4kW Photovoltaic Array The final test-case house was assumed to be grid-connected, 4 kW PV array of multi... of houses, solar PV and lighting measures that showed a significant reduction in electricity use were very effective in reducing the total energy cost. The measures that reduced electricity use for cooling and fans and pumps also resulted in high energy...

  8. The Effect of Wind Speed and Electric Rates On Wind Turbine Economics

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    The Effect of Wind Speed and Electric Rates On Wind Turbine Economics Economics of wind power by the theoretical maximum energy production if the generator were running at its rated power all the year turbine Rated Power per turbine: assumption 1,500 kW C Availability assumption 97% D 8,760 hrs/year E

  9. First waste-to-energy power station put into operation in Vietnam has successfully produced electricity from household and industrial waste as a

    E-Print Network [OSTI]

    Columbia University

    First waste-to-energy power station put into operation in Vietnam Vietnam has successfully produced electricity from household and industrial waste as a newly-generated power supply has come online of the first turbine of the waste-powered electricity plant has been successful. The plant can produce 14,400KW

  10. Covered Product Category: Water-Cooled Electric Chillers | Department...

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

    Electric Chillers Covered Product Category: Water-Cooled Electric Chillers The Federal Energy Management Program (FEMP) provides acquisition guidance and Federal efficiency...

  11. Development and Implementation of Degree Programs in Electric...

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

    in Electric Drive Vehicle Technology Development and Implementation of Degree Programs in Electric Drive Vehicle Technology GATE: Energy Efficient Vehicles for Sustainable Mobility...

  12. Aiken Electric Cooperative Inc- Residential Water Heater Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Aiken Electric Cooperative offers residential members rebates for installing high-efficiency electric water heaters and/or timers in their homes. Customers have four rebate options: 

  13. 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),...

  14. Electric Power Research Institute Cooperation to Increase Energy...

    Energy Savers [EERE]

    by improving energy efficiency and promoting the widespread adoption of electric energy demand response programs in an effort to curtail energy use during peak periods. Electric...

  15. Power Right. Power Smart. Efficient Computer Power Supplies and...

    Energy Savers [EERE]

    consume? Higher efficiency power supplies reduce energy consumption, thus cutting your electricity bill. They reduce power consumption, helping your electric utility meet peak...

  16. Miami-Cass REMC- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Miami-Cass Rural Electric Membership Cooperative (MCREMC) is a member-owned electric distribution cooperative serving customers in central Indiana.  MCREMC offers energy efficiency rebates to its...

  17. Advanced, High-Reliability, System-Integrated 500kW PV Inverter Development: Final Subcontract Report, 29 September 2005 - 31 May 2008

    SciTech Connect (OSTI)

    West, R.

    2008-08-01

    Xantrex Technology accomplished subcontract goals of reducing parts cost, weight, and size of its 500-kW inverter by 25% compared to state-of-the-art PV inverters, while extending reliability by 25%.

  18. Aalborg Universitet Tvindkraft: Implementing a 500 kW 21-IGBT-Based Frequency Converter for a 1.7 MW

    E-Print Network [OSTI]

    Schaltz, Erik

    Rotor Synchronous Generator (WRSG), installed in the windmill's hub, to the grid, by operating-filterRectifier SG 500 kW 21-IGBT-based frequency converter Generator and step- down transformer Step-up transformer

  19. Performance Characteristics of a Cluster of 5-kW Laboratory Hall Thrusters

    E-Print Network [OSTI]

    Walker, Mitchell

    thrust changes within 4% to 2%, significantly better than a simple random flux calculation that uses power is increasing. Recent satellite designs suggest that electric propulsion (EP) systems will have [2]. If the tank pressure is too high, the background gas can artificially modify the exhaust plume

  20. Electricity market module: Electricity capacity planning submodule

    SciTech Connect (OSTI)

    NONE

    1996-06-01

    The purpose of this report is to describe modifications to the Electricity Capacity Planning Submodule (ECP) for the Annual Energy Outlook 1996. It describes revisions to enhance the representation of planned maintenance, incorporate technological improvements in operating efficiencies, revise the algorithm for determining international firm power imports, and include risk premiums for new plant construction.

  1. Industrial innovations for tomorrow: Advances in industrial energy-efficiency technologies. Commercial power plant tests blend of refuse-derived fuel and coal to generate electricity

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    MSW can be converted to energy in two ways. One involves the direct burning of MSW to produce steam and electricity. The second converts MSW into refuse-derived fuel (RDF) by reducing the size of the MSW and separating metals, glass, and other inorganic materials. RDF can be densified or mixed with binders to form fuel pellets. As part of a program sponsored by DOE`s Office of Industrial Technologies, the National Renewable Energy Laboratory participated in a cooperative research and development agreement to examine combustion of binder-enhanced, densified refuse-derived fuel (b-d RDF) pellets with coal. Pelletized b-d RDF has been burned in coal combustors, but only in quantities of less than 3% in large utility systems. The DOE project involved the use of b-d RDF in quantities up to 20%. A major goal was to quantify the pollutants released during combustion and measure combustion performance.

  2. Replacement of Lighting Fixtures with LED Energy Efficient Lights at the Parking Facility, Milwaukee, Wisconsin

    SciTech Connect (OSTI)

    David Brien

    2012-06-21

    The Forest County Potawatomi Community (FCPC or Tribe) owns a six-story parking facility adjacent to its Potawatomi Bingo Casino (the Casino) in Milwaukee, Wisconsin, as well as a valet parking facility under the Casino (collectively, the Parking Facility). The Parking Facility contained 205-watt metal halide-type lights that, for security reasons, operated 24 hours per day, 7 days per week. Starting on August 30, 2010, the Tribe replaced these fixtures with 1,760 state-of-the-art, energy efficient 55-Watt LED lights. This project resulted in an immediate average reduction in monthly peak demand of 238 kW over the fourth quarter of 2010. The average reduction in monthly peak demand from October 1 through December 31, 2010 translates into a forecast annual electrical energy reduction of approximately 1,995,000 kWh or 47.3% of the pre-project demand. This project was technically effective, economically feasible, and beneficial to the public not only in terms of long term energy efficiency and associated emissions reductions, but also in the short-term jobs provided for the S.E. Wisconsin region. The project was implemented, from approval by U.S. Department of Energy (DOE) to completion, in less than 6 months. The project utilized off-the-shelf proven technologies that were fabricated locally and installed by local trade contractors.

  3. Hybrid and Plug-in Electric Vehicles

    SciTech Connect (OSTI)

    2014-05-20

    Hybrid and plug-in electric vehicles use electricity either as their primary fuel or to improve the efficiency of conventional vehicle designs. This new generation of vehicles, often called electric drive vehicles, can be divided into three categories: hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles(PHEVs), and all-electric vehicles (EVs). Together, they have great potential to reduce U.S. petroleum use.

  4. A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW

    E-Print Network [OSTI]

    Greacen, Chris

    2014-01-01

    of Distributed Resource Island Systems with Electric Powerguidance on operating island systems in these variousof Distributed Resource Island Systems with Electric Power

  5. A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW

    E-Print Network [OSTI]

    Greacen, Chris

    2014-01-01

    guidance on operating island systems in these variousof Distributed Resource Island Systems with Electric Powerof Distributed Resource Island Systems with Electric Power

  6. Advanced Review High efficiency photovoltaics: on

    E-Print Network [OSTI]

    Delaware, University of

    price and its relation to market electricity sales price. The current gap between PV energy price the research and development opportunities for high-efficiency PV and projects the required efficiency-priceAdvanced Review High efficiency photovoltaics: on the way to becoming a major electricity source

  7. Gigawatt peak power generation in a relativistic klystron amplifier driven by 1 kW seed-power

    SciTech Connect (OSTI)

    Wu, Y. [Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900 (China) [Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900 (China); Science and Technology on High Power Microwave Laboratory, Mianyang 621900 (China); Xie, H. Q. [College of Science, Southwestern University of Science and Technology, Mianyang 621010 (China)] [College of Science, Southwestern University of Science and Technology, Mianyang 621010 (China); Li, Z. H.; Zhang, Y. J.; Ma, Q. S. [Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900 (China)] [Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900 (China)

    2013-11-15

    An S-band high gain relativistic klystron amplifier driven by kW-level RF power is proposed and studied experimentally. In the device, the RF lossy material is introduced to suppress higher mode excitation. An output power of 1.95 GW with a gain of 62.8 dB is obtained in the simulation. Under conditions of an input RF power of 1.38 kW, a microwave pulse with power of 1.9 GW, frequency of 2.86 GHz, and duration of 105 ns is generated in the experiment, and the corresponding gain is 61.4 dB.

  8. Wind Turbine Generator System Power Quality Test Report for the Gaia Wind 11-kW Wind Turbine

    SciTech Connect (OSTI)

    Curtis, A.; Gevorgian, V.

    2011-07-01

    This report details the power quality test on the Gaia Wind 11-kW Wind Turbine as part of the U.S. Department of Energy's Independent Testing Project. In total five turbines are being tested as part of the project. Power quality testing is one of up to five test that may be performed on the turbines including power performance, safety and function, noise, and duration tests. The results of the testing provide manufacturers with reports that may be used for small wind turbine certification.

  9. Ion electric propulsion unit

    DOE Patents [OSTI]

    Light, Max E; Colestock, Patrick L

    2014-01-28

    An electron cyclotron resonance (ECR) thruster is disclosed having a plasma chamber which is electrically biased with a positive voltage. The chamber bias serves to efficiently accelerate and expel the positive ions from the chamber. Electrons follow the exiting ions, serving to provide an electrically neutral exhaust plume. In a further embodiment, a downstream shaping magnetic field serves to further accelerate and/or shape the exhaust plume.

  10. Integrated Solar Thermochemical Reaction System for High Efficiency...

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

    Integrated Solar Thermochemical Reaction System for High Efficiency Production of Electricity Integrated Solar Thermochemical Reaction System for High Efficiency Production of...

  11. Tips: Buying and Driving Fuel Efficient and Alternative Fuel...

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

    fuel efficient or alternative fuel vehicles. | Photo courtesy of Dennis Schroeder, NREL. Electric vehicles are just one option for buyers interested in fuel efficient or...

  12. Financing Energy-Efficient Homes | Department of Energy

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

    Credit: Davis Energy Group. Products and Building Services for Energy-Efficient Homes Solar water heaters are more efficient the gas or electric heaters. | Chart credit ENERGY...

  13. Ratepayer-Funded Energy Efficiency | Department of Energy

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

    Ratepayer-Funded Energy Efficiency Ratepayer-Funded Energy Efficiency INTRODUCTION The Office of Electricity Delivery and Energy Reliability (OE) is committed to helping States...

  14. Central Georgia EMC- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Central Georgia Electric Member Corporation (CGEMC) offers rebates for residential customers to increase the energy efficiency of existing homes or to build new energy efficient homes.  This year,...

  15. The Program Administrator Cost of Saved Energy for Utility Customer-Funded Energy Efficiency Programs

    E-Print Network [OSTI]

    Billingsley, Megan A.

    2014-01-01

    of Electricity Energy Efficiency Programs. ” The Energyof Utility Customer-Funded Energy Efficiency Programs in the5803E. Consortium for Energy Efficiency (CEE). 2013. 2012

  16. Country Review of Energy-Efficiency Financial Incentives in the Residential Sector

    E-Print Network [OSTI]

    Can, Stephane de la Rue du

    2011-01-01

    of Electricity Energy Efficiency Programs. ” Resource forWho Should Administer Energy-Efficiency Programs? Berkeleyresources/state-energy-efficiency-policy-briefs. Caracino

  17. Country Review of Energy-Efficiency Financial Incentives in the Residential Sector

    E-Print Network [OSTI]

    Can, Stephane de la Rue du

    2011-01-01

    eeting China’s Energy Efficiency and Environmental Goalsof Electricity Energy Efficiency Programs. ” Resource forWho Should Administer Energy-Efficiency Programs? Berkeley

  18. Preparation of activated carbon from coconut shell chars in pilot-scale microwave heating equipment at 60 kW

    SciTech Connect (OSTI)

    Li Wei [Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093 (China); Faculty of Science, Kunming University of Science and Technology, Kunming 650093 (China); Peng Jinhui [Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093 (China)], E-mail: jhpeng_ok@yeah.net; Zhang Libo; Yang Kunbin; Xia Hongying; Zhang Shimin; Guo Shenghui [Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093 (China)

    2009-02-15

    Experiments to prepare activated carbon by microwave heating indicated that microwave energy can decrease reaction temperature, save the energy and shorten processing time remarkably compared to conventional heating, owing to its internal and volumetric heating effects. The above results were based on the laboratory-scale experiments. It is desirable to develop a pilot-scale microwave heating equipment and investigate the parameters with the aim of technological industrialization. In the present study, the components and features of the self-invented equipment were introduced. The temperature rise curves of the chars were obtained. Iodine numbers of the activated carbons all exceed the state standard of China under the following conditions: 25 kg/h charging rate, 0.42 rev/min turning rate of ceramic tube, flow rate of steam at pressure of 0.01 MPa and 40 kW microwave heating power after 60 kW pre-activation for 30 min. Pore structure of the sample obtained at a time point of 46 h, which contained BET surface area, and pore size distributions of micropores and total pores, was tested by nitrogen adsorption at 77 K.

  19. Lincoln Electric System (Residential)- 2015 Sustainable Energy Program

    Broader source: Energy.gov [DOE]

    Lincoln Electric System (LES) offers several rebates to residential customers who are interested in upgrading to energy efficient household equipment. 

  20. HAS222d Intro to Energy and Environement: 40% off energy use in US goes into generating electricity

    E-Print Network [OSTI]

    goes into generating electricity generation efficiency: 33% electric power loss: plant to consumer 7) http://en.wikipedia.org/wiki/Electric_power_transmission#Losses http fuel power generation plants that dominate our electricity production. Remember that electricity

  1. Richmond Electric Vehicle Initiative Electric Vehicle Readiness...

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

    Richmond Electric Vehicle Initiative Electric Vehicle Readiness Plan Richmond Electric Vehicle Initiative Electric Vehicle Readiness Plan The REVi plan addresses the electric...

  2. Roseville Electric- Residential New Construction Rebate Program

    Broader source: Energy.gov [DOE]

    Roseville Electric provides financial incentives to encourage local builders to construct energy efficient homes which incorporate  photovoltaics (PV). Participating builders can choose from three...

  3. Valley Electric Association- Solar Water Heating Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Valley Electric Association (VEA), a nonprofit member owned cooperative, developed the domestic solar water heating program to encourage energy efficiency at the request of the membership. VEA...

  4. Flathead Electric Cooperative- Commercial Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    Flathead Electric Cooperative, in conjunction with Bonneville Power Administration, encourages energy efficiency in the commercial sector by providing a commercial lighting retro-fit rebate program...

  5. Energy Department - Electric Power Research Institute Cooperation...

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

    by improving energy efficiency and promoting the widespread adoption of electric energy demand response programs in an effort to curtail energy use during peak periods. "Through...

  6. National Electric Transmission Congestion Studies | Department...

    Office of Environmental Management (EM)

    congestion where it is significant enough to merit remediation. These are: 1), reduce electricity demand in the congested area through energy efficiency and demand management...

  7. Electric Restructuring Outreach Activities and Information Disseminati...

    Office of Environmental Management (EM)

    to state utility commissions on electric restructuring issues focusing on energy efficiency, renewable energy resource and distributed technology deployment. In providing...

  8. 6.685 Electric Machines, Fall 2003

    E-Print Network [OSTI]

    Kirtley, James L.

    Treatment of electromechanical transducers, rotating and linear electric machines. Lumped-parameter electromechanics of interaction. Development of device characteristics: energy conversion density, efficiency; and of ...

  9. Buying Clean Electricity | Department of Energy

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

    followonfacebook.png Renewable Electricity Blogs Want a Tax Credit for a Small Wind System? Be Sure It's Certified Energy Efficiency Tax Credits, Rebates and...

  10. Non-Intrusive Electric Load Monitoring in Commercial Buildings 

    E-Print Network [OSTI]

    Norford, L. K.; Mabey, N.

    1992-01-01

    W'S) Figure 2. Electric power at the building HVAC service entrance, July 23, 1991. A chiller and associated pumps were turned on at 7 am. To quantify the resolution that can be obtained with a 5 kW standard deviation, we apply statistics appropriate..., heuristic identification Table 3 Changes in electrical power due to turning fans on and off, as determined by application of three different filters. Summary statistics are for the first two trials, which involved the same fan. Trial 1 2 3 Average...

  11. Proceedings of the 13th Sede Boqer Symposium on Solar Electricity Production 1 October 31-November 1, 2005

    E-Print Network [OSTI]

    Heinemann, Detlev

    and a continuous increase of the installed capacity can be observed. As could be expected, the systems are subject with an installed capacity below 5 - 10kW. For small and medium size systems a scheme working with Irradiance dataProceedings of the 13th Sede Boqer Symposium on Solar Electricity Production 1 October 31-November

  12. EWEB- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Eugene Water and Electric Board (EWEB) provides cash incentives to help residential customers increase the energy efficiency of homes through several different rebate programs. Rebates are provided...

  13. Estimating Motor Efficiency in the Field

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

    testing procedures as described in Institute of Electrical and Electronics Engineers (IEEE) Standard 112-2004 (Test Method B). Field measurements for determining motor efficiency...

  14. Agricultural Energy Efficiency Program (New York) | Department...

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

    gas or electricity bills. It will only support improvements related to farm operations; energy efficiency measures in on-farm residences are not eligible for incentives. The...

  15. Poudre Valley REA- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Poudre Valley Rural Electric Association (PVREA), a Touchstone Energy Cooperative, offers residential energy efficiency rebate programs for qualified residential water heaters, heat pumps, space...

  16. Electrical + Engineering

    E-Print Network [OSTI]

    Cafarella, Michael J.

    Electrical + Computer Engineering Electrical + Computer Engineering 2013 PROFILE PEOPLE Faculty Students Electrical Engineering - 330 Computer Engineering - 224 Graduate Students EE and EE:Systems MSE - 301 EE and EE:Systems PhD - 296 Degrees Awarded Electrical Engineering BSE - 123 Computer Engineering

  17. Photoferroelectric solar to electrical conversion

    E-Print Network [OSTI]

    Milos Knezevic; Mark Warner

    2013-01-30

    We propose a charge pump which converts solar energy into DC electricity. It is based on cyclic changes in the spontaneous electric polarization of a photoferroelectric material, which allows a transfer of charge from a low to a high voltage. To estimate the power efficiency we use a photoferroelectric liquid crystal as the working substance. For a specific choice of material, an efficiency of $2\\%$ is obtained.

  18. IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 22, NO. 4, JULY 2007 1437 A Ripple-Mitigating and Energy-Efficient Fuel Cell

    E-Print Network [OSTI]

    Mazumder, Sudip K.

    -Mitigating and Energy-Efficient Fuel Cell Power-Conditioning System Sudip K. Mazumder, Senior Member, IEEE, Rajni K-efficient, fuel-cell power-con- ditioning system (PCS) for stationary application, which reduces the variations in the current drawn from the fuel-cell stack and can potentially meet the $40/kW cost target. The PCS consists

  19. Final Technical Report: Residential Fuel Cell Demonstration by the Delaware County Electric Cooperative, Inc.

    SciTech Connect (OSTI)

    Mark Hilson Schneider

    2007-06-06

    This demonstration project contributes to the knowledge base in the area of fuel cells in stationary applications, propane fuel cells, edge-of-grid applications for fuel cells, and energy storage in combination with fuel cells. The project demonstrated that it is technically feasible to meet the whole-house electrical energy needs of a typical upstate New York residence with a 5-kW fuel cell in combination with in-home energy storage without any major modifications to the residence or modifications to the consumption patterns of the residents of the home. The use of a fuel cell at constant output power through a 120-Volt inverter leads to system performance issues including: • relatively poor power quality as quantified by the IEEE-defined short term flicker parameter • relatively low overall system efficiency Each of these issues is discussed in detail in the text of this report. The fuel cell performed well over the 1-year demonstration period in terms of availability and efficiency of conversion from chemical energy (propane) to electrical energy at the fuel cell output terminals. Another strength of fuel cell performance in the demonstration was the low requirements for maintenance and repair on the fuel cell. The project uncovered a new and important installation consideration for propane fuel cells. Alcohol added to new propane storage tanks is preferentially absorbed on the surface of some fuel cell reformer desulfurization filters. The experience on this project indicates that special attention must be paid to the volume and composition of propane tank additives. Size, composition, and replacement schedules for the de-sulfurization filter bed should be adjusted to account for propane tank additives to avoid sulfur poisoning of fuel cell stacks. Despite good overall technical performance of the fuel cell and the whole energy system, the demonstration showed that such a system is not economically feasible as compared to other commercially available technologies such as propane reciprocating engine generators.

  20. Advanced Photovoltaic Inverter Functionality using 500 kW Power Hardware-in-Loop Complete System Laboratory Testing: Preprint

    SciTech Connect (OSTI)

    Mather, B. A.; Kromer, M. A.; Casey, L.

    2013-01-01

    With the increasing penetration of distribution connected photovoltaic (PV) systems, more and more PV developers and utilities are interested in easing future PV interconnection concerns by mitigating some of the impacts of PV integration using advanced PV inverter controls and functions. This paper describes the testing of a 500 kW PV inverter using Power Hardware-in-Loop (PHIL) testing techniques. The test setup is described and the results from testing the inverter in advanced functionality modes, not commonly used in currently interconnected PV systems, are presented. PV inverter operation under PHIL evaluation that emulated both the DC PV array connection and the AC distribution level grid connection are shown for constant power factor (PF) and constant reactive power (VAr) control modes. The evaluation of these modes was completed under varying degrees of modeled PV variability.

  1. Design and development of a 6 MW peak, 24 kW average power S-band klystron

    SciTech Connect (OSTI)

    Joshi, L.M.; Meena, Rakesh; Nangru, Subhash; Kant, Deepender; Pal, Debashis; Lamba, O.S.; Jindal, Vishnu; Jangid, Sushil Kumar, E-mail: joslm@rediffmail.com [Central Electronics Engineering Research Institute, Council of Scientific and Industrial Research, Pilani (India); Chakravarthy, D.P.; Dixit, Kavita [Bhabha Atomic Research Centre, Mumbai (India)

    2011-07-01

    A 6 MW peak, 24 kW average power S-band Klystron is under development at CEERI, Pilani under an MoU between BARC and CEERI. The design of the klystron has been completed. The electron gun has been designed using TRAK and MAGIC codes. RF cavities have been designed using HFSS and CST Microwave Studio while the complete beam wave interaction simulation has been done using MAGIC code. The thermal design of collector and RF window has been done using ANSYS code. A Gun Collector Test Module (GCTM) was developed before making actual klystron to validate gun perveance and thermal design of collector. A high voltage solid state pulsed modulator has been installed for performance valuation of the tube. The paper will cover the design aspects of the tube and experimental test results of GCTM and klystron. (author)

  2. Hydrogen Energy Stations: Poly-Production of Electricity, Hydrogen, and Thermal Energy

    E-Print Network [OSTI]

    Lipman, Timothy; Brooks, Cameron

    2006-01-01

    kW kW Split reformer / electrolyzer / pipeline stream HighSplit reformer / electrolyzer / pipeline stream 4,000/kW5 Split reformer / electrolyzer / pipeline stream 3,000/kW

  3. Optimal Planning and Operation of Smart Grids with Electric Vehicle Interconnection

    E-Print Network [OSTI]

    Stadler, Michael

    2012-01-01

    point are PV, solar thermal collectors, absorption chillerelectricity) solar thermal collector (kW) PV (kW) stationaryelectricity) solar thermal collector (kW) PV (kW) stationary

  4. Energy Office Grant Helps the Virgin Islands Environmental Resource Station Install Solar Panels, Improve Efficiency, and Cut Monthly Energy Use Nearly 30% (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This fact sheet highlights the energy challenges faced by the Virgin Islands Environmental Resource Station (VIERS), the renewable energy and energy efficiency solutions implemented, the resulting energy efficiency savings, and other project benefits. In 2011, VIERS installed a 9.4 kW solar system funded by a $50,000 American Recovery and Reinvestment Act (ARRA) grant, which was administered by VIEO. To identify additional energy-saving opportunities, VIERS performed an energy audit of appliances, which resulted in the removal of two water coolers and the installation of a water meter to monitor water use and how it relates to electric pump use. VIERS also added an educational component to the project, developing a solar classroom near the original solar system. By building on previous energy conservation measures and making additional investments in renewable energy technology, VIERS has lowered its average monthly energy consumption nearly 30%, even with an increase in guests. The VIERS efforts are not limited to the technology installations, however. They also serve to impact the youth of the U.S. Virgin Islands (USVI) by educating young people about energy efficiency and renewable energy technologies and their energy and environmental impacts. VIERS solar system is connected to the Web via a live feed that posts solar output data in real time, increasing the VIERS solar classroom's potential educational impact exponentially.

  5. Hybrid and Plug-In Electric Vehicles (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2014-05-01

    Hybrid and plug-in electric vehicles use electricity as their primary fuel or to improve the efficiency of conventional vehicle designs. These vehicles can be divided into three categories: hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), all-electric vehicles (EVs). Together, they have great potential to cut U.S. petroleum use and vehicle emissions.

  6. Micromachined electrical cauterizer

    DOE Patents [OSTI]

    Lee, A.P.; Krulevitch, P.A.; Northrup, M.A.

    1999-08-31

    A micromachined electrical cauterizer is disclosed. Microstructures are combined with microelectrodes for highly localized electro cauterization. Using boron etch stops and surface micromachining, microneedles with very smooth surfaces are made. Micromachining also allows for precision placement of electrodes by photolithography with micron sized gaps to allow for concentrated electric fields. A microcauterizer is fabricated by bulk etching silicon to form knife edges, then parallelly placed microelectrodes with gaps as small as 5 {mu}m are patterned and aligned adjacent the knife edges to provide homeostasis while cutting tissue. While most of the microelectrode lines are electrically insulated from the atmosphere by depositing and patterning silicon dioxide on the electric feedthrough portions, a window is opened in the silicon dioxide to expose the parallel microelectrode portion. This helps reduce power loss and assist in focusing the power locally for more efficient and safer procedures. 7 figs.

  7. Powertrain system for a hybrid electric vehicle

    DOE Patents [OSTI]

    Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

    1999-08-31

    A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

  8. Powertrain system for a hybrid electric vehicle

    DOE Patents [OSTI]

    Reed, R.G. Jr.; Boberg, E.S.; Lawrie, R.E.; Castaing, F.J.

    1999-08-31

    A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration. 34 figs.

  9. Energy efficient data centers

    E-Print Network [OSTI]

    Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

    2004-01-01

    contribution to demand growth Units Msf W/sf GW TWh Totalcontribution to demand growth Units Msf W/sf GW TWh TotalPower Density (W/SF) Avg Pwr Demand (KW) Peak Pwr Demand (

  10. Baltimore Gas & Electric Company (Electric) - Commercial Energy Efficiency

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUS SERVICE SUBSIDIES ATj.BOULDERofBadgeProgram | Department

  11. Baltimore Gas & Electric Company (Electric) - Residential Energy Efficiency

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUS SERVICE SUBSIDIES ATj.BOULDERofBadgeProgram |

  12. Energy Efficiency Fund (Electric and Gas) - Residential Energy Efficiency

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n cEnergyNatural Gas |Tool for UsedFinancing | Department of Energy

  13. Water Efficiency

    Energy Savers [EERE]

    Water Efficiency Hosted by: FEDERAL UTILITY PARTNERSHIP WORKING GROUP SEMINAR November 5-6, 2014 Cape Canaveral, Florida WATER EFFICIENCY Federal Utility Partnership Working Group...

  14. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Renewable Electricity Futures

    E-Print Network [OSTI]

    and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Renewable Electricity Futures Trieu Berlin, Germany December 46, 2012 NREL/PR6A2057018 Renewable Electricity Futures Study (2012). Hand, M is a low carbon, low air pollutant, low fuel use, low water use, domestic, and sustainable electricity

  15. Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Cement Industry in China

    E-Print Network [OSTI]

    Hasanbeigi, Ali

    2013-01-01

    CCF Rank Efficiency Measure *** Fuel Savings (PJ) Cost ofof energy-efficiency measures, the actual energy savingsElectricity Savings (TWh) Efficiency Measure* Replacement of

  16. Oklahoma Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Oklahoma Energy Cooperative (OEC) offers rebates to residential customers for the purchase of air-source heat pumps, geothermal heat pumps and water heaters. Air-source heat pumps are eligible for...

  17. South Alabama Electric Cooperative - Residential Energy Efficiency...

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

    cover the cost of labor and materials for energy conservation measures on existing structures. Loans will only be made to members who have good credit ratings and also own the...

  18. Minnesota Valley Electric Cooperative - Residential Energy Efficiency...

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

    RefrigeratorsFreezers Boilers Heat Pumps Air conditioners Other EE Maximum Rebate Ground-Source Heat Pump: 5 ton maximum Program Info Sector Name Utility Administrator Minnesota...

  19. Avista Utilities (Electric) - Commercial Energy Efficiency Incentives...

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

    PagesIDCommercialRebate... State Idaho Program Type Rebate Program Rebate Amount Clothes Washer: 100 Food Service Equipment: Varies Lighting: Varies Motors: Varies Power...

  20. Redding Electric - Residential and Commercial Energy Efficiency...

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

    required - Commercial Duct RepairReplacement: 500 Lighting: 5,000 Geothermal Heat Pumps: 5,000 (Residential), contact REU for Commercial Program Info Sector Name...

  1. Shrewsbury Electric - Residential Energy Efficiency Rebate Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAandSummaryDISTDepartment SEMIANNUAL REPORTgas is 2011Department of

  2. Roseville Electric - Commercial Energy Efficiency Rebate Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary From:Construction IndustrialDepartment of Energy Construction

  3. Roseville Electric - Residential Energy Efficiency Rebate Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary From:Construction IndustrialDepartment of Energy

  4. Minnesota Valley Electric Cooperative - Residential Energy Efficiency

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAand DOE SafetyofDepartment. "NationalTechnologyThisProgramofRebate

  5. Murfreesboro Electric Department - Energy Efficiency Rebate Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment of Energy Motion to Mr.ThisDepartment of Energy

  6. NYSEG (Electric) - Commercial and Industrial Efficiency Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment ofProgram | Department of Energy <<Department of

  7. Farmers Electric Cooperative (Kalona) - Residential Efficiency Matching

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n cEnergyNaturaldefinesMay 4,of Energy missionRebatefanuserthe Skies

  8. Electric Efficiency Standard | Department of Energy

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n cEnergy (AZ,Local Government Nonprofit ResidentialofUlrich - Balance<

  9. Empire District Electric - Residential Energy Efficiency Rebate |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n cEnergy (AZ,Local GovernmentofVoltage unbalanceDepartmentDepartment

  10. Energy Optimization (Electric) - Commercial Efficiency Program | Department

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n cEnergyNatural Gas |Tool for<StateSarah Chinn isFebruaryof Energy

  11. Lane Electric Cooperative - Residential Efficiency Rebate Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAand DOE Safety StandardsLabor Relations ActAvenue, S.W.Site |

  12. Mansfield Municipal Electric Department - Residential Energy Efficiency

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i nAand DOE Safetyof Energy ThisSites | DepartmentRebate Program |

  13. Burlington Electric Department - Residential Energy Efficiency Rebate

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l DeInsulation at the EdgeBUILDINGS-TO-GRIDDepartmentan overview

  14. Avista Utilities (Electric) - Commercial Energy Efficiency Incentives

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUS SERVICE SUBSIDIES AT THEEnergyAO2003 September

  15. Avista Utilities (Electric) - Commercial Energy Efficiency Incentives

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUS SERVICE SUBSIDIES AT THEEnergyAO2003

  16. Consumers Energy (Electric) - Commercial Energy Efficiency Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartmentEnergy comparing LEDCSAC

  17. Consumers Energy (Electric) - Residential Energy Efficiency Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartmentEnergy comparing LEDCSACDepartment of Energy <

  18. (Electric) Commercial and Industrial Energy Efficiency Programs |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s s i s t a n t S e c r eEnergy <

  19. Ameren Missouri (Electric) - Business Energy Efficiency Program |

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

    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 of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y AEfficiency RebateFederalDepartment ofIncentives

  20. Liberty Utilities (Electric) - Commercial Energy Efficiency Incentive

    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 MANUFACTURING OFFICE INDUSTRIALU.S.Leadership on Clean Energys o u tMr.LeveragingPrograms |

  1. Liberty Utilities (Electric) - Residential Energy Efficiency Rebate

    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 MANUFACTURING OFFICE INDUSTRIALU.S.Leadership on Clean Energys o u tMr.LeveragingPrograms

  2. Putting electric vehicles to the test

    E-Print Network [OSTI]

    Putting electric vehicles to the test Boeing, Dal team to make more efficient aircraft parts.moore@dal.ca 902.494.3158 2 Engineering Electric vehicles. Are they for real or just a fad? Can they satisfy an electric vehicle may seem novel to some, while others may wonder if such a machine could actually meet

  3. SCENARIOS FOR MEETING CALIFORNIA'S 2050 CLIMATE GOALS California's Carbon Challenge Phase II Volume I: Non-Electricity Sectors and Overall Scenario Results

    E-Print Network [OSTI]

    Wei, Max

    2014-01-01

    Volume 1: Statewide Electricity Demand and Methods, End?UserRelative to 1990 Level] Electricity Demand ElectrificationEfficiency Base Electricity Demand = Technical potential

  4. Uncertainties in the Value of Bill Savings from Behind-the-Meter, Residential Photovoltaic Systems: The Roles of Electricity Market Conditions, Retail Rate Design, and Net Metering

    E-Print Network [OSTI]

    Darghouth, Naim Richard

    2013-01-01

    2005a. Time- varying retail electricity prices: Theory andpractice. Electricity Deregulation: Choices and Challenges.efficiency of real-time electricity pricing. Energy Journal

  5. Electric Adsorption Heat Pump for Electric Vehicles: Electric-Powered Adsorption Heat Pump for Electric Vehicles

    SciTech Connect (OSTI)

    2011-11-21

    HEATS Project: PNNL is developing a new class of advanced nanomaterial called an electrical metal organic framework (EMOF) for EV heating and cooling systems. The EMOF would function similar to a conventional heat pump, which circulates heat or cold to the cabin as needed. However, by directly controlling the EMOF's properties with electricity, the PNNL design is expected to use much less energy than traditional heating and cooling systems. The EMOF-based heat pumps would be light, compact, efficient, and run using virtually no moving parts.

  6. The Changing US Electric Sector Business Model 

    E-Print Network [OSTI]

    Aliff, G.

    2013-01-01

    uneconomical for electricity generation • Renewable portfolio standards (29 states and DC) put priority on solar, wind and energy efficiency regardless of associated economics • Forecasts of future electricity demand are debatable, and in some cases expected... on the Future and Conclusions Presentation overview 2 ESL-KT-13-12-57 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Copyright © 2013 Deloitte Development LLC. All rights reserved. Fundamentals of the US electric sector...

  7. 60 KEV 30 KW ELECTRON BEAM FACILITY FOR ELECTRON BEAM Yu.I.Semenov, V.E.Akimov, M.A.Batazova, B.A.Dovzhenko, V.V.Ershov, A.R.Frolov,

    E-Print Network [OSTI]

    Kozak, Victor R.

    60 KEV 30 KW ELECTRON BEAM FACILITY FOR ELECTRON BEAM TECHNOLOGY Yu.I.Semenov, V.E.Akimov, M Abstract At the Budker Institute of Nuclear Physics, Novosibirsk, the 60 keV 30 kW electron beam facility for electron beam technology has been developed. The electron gun provides continuous or modulated beam within

  8. Cleanup Verification Package for the 100-K-55:1 and 100-K-56:1 Pipelines and the 116-KW-4 and 116-KE-5 Heat Recovery Stations

    SciTech Connect (OSTI)

    J. M. Capron

    2005-09-28

    This cleanup verification package documents completion of remedial action for the 100-K-55:1 and 100-K-56:1 reactor cooling effluent underground pipelines and for the 116-KW-4 and 116-KE-5 heat recovery stations. The 100-K-55 and 100-K-56 sites consisted of those process effluent pipelines that serviced the 105-KW and 105-KE Reactors.

  9. What Can China Do? China's Best Alternative Outcome for Energy Efficiency and CO2 Emissions

    E-Print Network [OSTI]

    G. Fridley, David

    2010-01-01

    high voltage electricity transmission in China. A secondthe transmission and distribution of electricity, and in theelectricity supply, generation efficiency, dispatch, transmission

  10. Wind Turbine Generator System Duration Test Report for the Gaia-Wind 11 kW Wind Turbine

    SciTech Connect (OSTI)

    Huskey, A.; Bowen, A.; Jager, D.

    2010-09-01

    This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Renewable Energy Laboratory's (NRELs) National Wind Technology Center (NWTC) as a part of this project. Duration testing is one of up to five tests that may be performed on the turbines, including power performance, safety and function, noise, and power quality tests. The results of the testing will provide the manufacturers with reports that may be used for small wind turbine certification. The test equipment includes a Gaia-Wind 11 kW wind turbine mounted on an 18 m monopole tower. Gaia-Wind Ltd. manufactured the turbine in Denmark, although the company is based in Scotland. The system was installed by the NWTC Site Operations group with guidance and assistance from Gaia-Wind.

  11. An Integrated Onboard Charger and Accessary Power Converter for Plug-in Electric Vehicles

    SciTech Connect (OSTI)

    Su, Gui-Jia; Tang, Lixin

    2013-01-01

    Abstract: In this paper, an integrated onboard battery charger and accessary dc-dc converter for plug-in electric vehicles (PEVs) is presented. The idea is to utilize the already available traction drive inverters and motors of a PEV as the frond converter of the charger circuit and the transformer of the 14 V accessary dc-dc converter to provide galvanic isolation. The topology was verified by modeling and experimental results on a 5 kW charger prototype

  12. A NEW GAS TURBINE ENGINE CONCEPT FOR ELECTRICITY

    E-Print Network [OSTI]

    A NEW GAS TURBINE ENGINE CONCEPT FOR ELECTRICITY GENERATION WITH INCREASED EFFICIENCY AND POWER REPORT (FAR) A NEW GAS TURBINE ENGINE CONCEPT FOR ELECTRICITY GENERATION WITH INCREASED EFFICIENCY://www.energy.ca.gov/research/index.html. #12;Page 1 A New Gas Turbine Engine Concept For Electricity Generation With Increased

  13. Electric Vehicles

    ScienceCinema (OSTI)

    Ozpineci, Burak

    2014-07-23

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  14. Electric Vehicles

    SciTech Connect (OSTI)

    Ozpineci, Burak

    2014-05-02

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  15. Solar ADEPT: Efficient Solar Energy Systems

    SciTech Connect (OSTI)

    2011-01-01

    Solar ADEPT Project: The 7 projects that make up ARPA-E's Solar ADEPT program, short for 'Solar Agile Delivery of Electrical Power Technology,' aim to improve the performance of photovoltaic (PV) solar energy systems, which convert the sun's rays into electricity. Solar ADEPT projects are integrating advanced electrical components into PV systems to make the process of converting solar energy to electricity more efficient.

  16. Electric machine

    DOE Patents [OSTI]

    El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

    2012-07-17

    An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

  17. Charge Allocation for Hybrid Electrical Energy Storage Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    Charge Allocation for Hybrid Electrical Energy Storage Systems Qing Xie1, Yanzhi Wang1, Younghyun Hybrid electrical energy storage (HEES) systems, composed of multiple banks of heterogeneous electrical to efficiently store and retrieve electrical energy while attaining performance metrics that are close

  18. THE HUNDRED BILLION DOLLAR BONUS: Global Energy Efficiency Lessons from India

    E-Print Network [OSTI]

    Paul, Seema

    2012-01-01

    Efficiency Lessons from India Seema Paul Shakti SustainableEnergy Efficiency Lessons from India. ClimateWorks NetworkKnowledge Series. March. Contents INDIA’S ELECTRICITY SUPPLY

  19. Integrated Building Energy Systems Design Considering Storage Technologies

    E-Print Network [OSTI]

    Stadler, Michael

    2009-01-01

    photovoltaics and solar thermal collectors; electricalelectricity) solar thermal collector (kW) PV (kW) electricelectricity) solar thermal collector (kW) PV (kW) electric

  20. HMAX ®:Active Energy Control for Electric Motors | Department...

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

    :Active Energy Control for Electric Motors Real-Time Sensing and Control of Electric Motor Operation Optimizes Energy Efficiency In 2011, the U.S. industrial sector consumed 3.7...