National Library of Energy BETA

Sample records for nuclear photovoltaics tidal

  1. Photovoltaic

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Distributed Energy Technology Lab Microsystems and Engineering Sciences Applications National Solar Thermal Test Facility Nuclear Energy Systems LaboratoryBrayton Lab Photovoltaic ...

  2. Photovoltaic

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Systems LaboratoryBrayton Lab Photovoltaic Systems Evaluation Laboratory PV ... Twitter Google + Vimeo Newsletter Signup SlideShare Photovoltaic HomePhotovoltaic ...

  3. Photovoltaics

    SciTech Connect

    Solar Energy Technologies Program

    2010-09-28

    The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its photovoltaics subprogram.

  4. Photovoltaics

    SciTech Connect

    Not Available

    2008-09-01

    Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its photovoltaics subprogram.

  5. CNEEC - Photovoltaics Tutorial by Prof. Clemens

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaics

  6. Photovoltaics

    SciTech Connect

    Ebisch, R.

    1981-07-01

    Applications of photovoltaics to non-residential buildings are discussed. Most of the projects underway represent a joint effort by DOE and fifteen manufacturing companies now offering or developing photovoltaics. The systems are either flat-plate arrays, in which the sunlight is received directly on the photocells, or concentrating systems, in which the sunlight is focused on the photocells by mirrors or lenses. The DOE price goal for 1986 is to have photovoltaic systems capable of supplying shopping centers, apartment complexes, and industries with modules costing 70 cents/W and systems costing $1.60 to $2.60/W with the price of power to the user at 7 cents to 11 cents/kWh. New technologies discussed include the use of silicon with no crystal structure and the use of ribbons of silicon. (MJF)

  7. Photovoltaic

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering ...

  8. High-efficiency, monolithic, multi-bandgap, tandem photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles ... High-efficiency, monolithic, multi-bandgap, tandem photovoltaic energy converters United ...

  9. Hydropower, Wave and Tidal Technologies - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Marketing Summaries (13) Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles ...

  10. Multiband semiconductor compositions for photovoltaic devices...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual...

  11. tidal turbines

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    tidal turbines - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  12. Photovoltaic Systems Evaluation Laboratory (PSEL)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Distributed Energy Technology Lab Microsystems and Engineering Sciences Applications National Solar Thermal Test Facility Nuclear Energy Systems LaboratoryBrayton Lab Photovoltaic ...

  13. List of Tidal Energy Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  14. Hydropower, Wave and Tidal Technologies Available for Licensing - Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Innovation Portal Hydropower, Wave and Tidal Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Marketing Summaries (13) Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Browse

  15. Tidal Electric | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Electric Place: London, Greater London, United Kingdom Zip: SW19 8UY Product: Developed a technology named 'tidal lagoons' to build tidal electric projects. Coordinates:...

  16. Photovoltaic device

    SciTech Connect

    Reese, Jason A.; Keenihan, James R.; Gaston, Ryan S.; Kauffmann, Keith L.; Langmaid, Joseph A.; Lopez, Leonardo C.; Maak, Kevin D.; Mills, Michael E.; Ramesh, Narayan; Teli, Samar R.

    2015-09-01

    The present invention is premised upon an improved photovoltaic device ("PV device"), more particularly to an improved photovoltaic device (10) with a multilayered photovoltaic cell assembly (100) and a body portion (200) joined at an interface region (410) and including an intermediate layer (500), at least one interconnecting structural member (1500), relieving feature (2500), unique component geometry, or any combination thereof.

  17. Photovoltaic device

    SciTech Connect

    Reese, Jason A.; Keenihan, James R.; Gaston, Ryan S.; Kauffmann, Keith L.; Langmaid, Joseph A.; Lopez, Leonardo C.; Maak, Kevin D.; Mills, Michael E.; Ramesh, Narayan; Teli, Samar R.

    2015-06-02

    The present invention is premised upon an improved photovoltaic device ("PV device"), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof.

  18. Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics (Redirected from Photovoltaic) Jump to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)1 Photovoltaic Panels...

  19. Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics (Redirected from Solar Photovoltaics) Jump to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)1 Photovoltaic...

  20. Solar Photovoltaic Technologies - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Marketing Summaries Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Marketing Summaries (135) Success Stories (5) Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Browse

  1. Residential photovoltaics

    SciTech Connect

    None, None

    2009-01-18

    The photovoltaics overview section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  2. Photovoltaic Solar Projects | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects Photovoltaic Solar Projects LPO_Utility-Scale_PV_Solar_Report_Thumbnail_180.png

  3. Photovoltaic cell

    DOEpatents

    Gordon, Roy G.; Kurtz, Sarah

    1984-11-27

    In a photovoltaic cell structure containing a visibly transparent, electrically conductive first layer of metal oxide, and a light-absorbing semiconductive photovoltaic second layer, the improvement comprising a thin layer of transition metal nitride, carbide or boride interposed between said first and second layers.

  4. Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)1 Photovoltaic Panels Solar cells, also called photovoltaic (PV)...

  5. Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics Jump to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)1 Photovoltaic Panels Solar cells, also called...

  6. Clarence Strait Tidal Energy Project, Tenax Energy Tropical Tidal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Clarence Strait Tidal Energy Project, Tenax Energy Tropical Tidal Test Centre, Jump to: navigation, search 1 Retrieved from "http:en.openei.orgwindex.php?titleClarenceStrai...

  7. Tidally-Induced Thermonuclear Supernovae

    SciTech Connect

    Rosswog, S.; Ramirez-Ruiz, E.; Hix, William Raphael

    2009-01-01

    We discuss the results of 3D simulations of tidal disruptions of white dwarfs by moderate-mass black holes as they may exist in the cores of globular clusters or dwarf galaxies. Our simulations follow self-consistently the hydrodynamic and nuclear evolution from the initial parabolic orbit over the disruption to the build-up of an accretion disk around the black hole. For strong enough encounters (pericentre distances smaller than about 1/3 of the tidal radius) the tidal compression is reversed by a shock and finally results in a thermonuclear explosion. These explosions are not restricted to progenitor masses close to the Chandrasekhar limit, we find exploding examples throughout the whole white dwarf mass range. There is, however, a restriction on the masses of the involved black holes: black holes more massive than 2x105M{circle_dot} swallow a typical 0.6M{circle_dot} white dwarf before their tidal forces can overwhelm the star's selfgravity. Therefore, this mechanism is characteristic for black holes of moderate masses. The material that remains bound to the black hole settles into an accretion disk and produces an Xray flare close to the Eddington limit of L{sub Edd} {approx} 10{sup 41}erg/s (Mbh/1000M{circle_dot}), typically lasting for a few months. The combination of a peculiar thermonuclear supernova together with an X-ray flare thus whistle-blows the existence of such moderate-mass black holes. The next generation of wide field space-based instruments should be able to detect such events.

  8. Hands On Photovoltaic Experience | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hands On Photovoltaic Experience The 2016 Hands-On PV Experience (HOPE) Workshop was held ... The event is designed to strengthen photovoltaic (PV) research at universities in the ...

  9. NREL: Photovoltaics Research - Company Partners in Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Company Partners in Photovoltaic Manufacturing R&D More than 40 private-sector companies ... First Solar Glasstech Solar Global Photovoltaic Specialists Global Solar Energy Golden ...

  10. NREL: Photovoltaics Research - Photovoltaic Energy Ratings Methods...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Energy Ratings Methods Validation The Photovoltaic (PV) Engineering group at NREL validates energy ratings methods by standards committees to establish an energy ...

  11. Alternating current photovoltaic building block - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1103 Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Return to Search Alternating current photovoltaic building block United States

  12. Solar Photovoltaic Technologies Available for Licensing - Energy Innovation

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Portal Photovoltaic Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Marketing Summaries (135) Success Stories (5) Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Browse Solar

  13. Aternating current photovoltaic building block - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    0,391 Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Find More Like This Return to Search Aternating current photovoltaic building

  14. Tianda Photovoltaic Co Ltd Yunnan Tianda Photovoltaic | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Tianda Photovoltaic Co Ltd Yunnan Tianda Photovoltaic Jump to: navigation, search Name: Tianda Photovoltaic Co Ltd (Yunnan Tianda Photovoltaic) Place: Kunming, Yunnan Province,...

  15. Tidal Flow Turbulence Measurements

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and it is a metric in the wind energy industry. For acoustic Dop surements, a noise-corrected expression of ... used to simulate tidal turbine perform quire speci cation ...

  16. National Center for Photovoltaics | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    National Center for Photovoltaics The National Center for Photovoltaics (NCPV) at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV includes multiple capabilities in PV research, development, deployment, and outreach. To help the U.S. photovoltaic industry maintain a competitive position, the U.S. Department of Energy (DOE) created the National Center for Photovoltaics (NCPV) in 1996.

  17. Publications | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The scientists in the National Center for Photovoltaics (NCPV) at NREL publish a variety of documents related to photovoltaic and related research, including journal articles, ...

  18. Research | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research From photovoltaic (PV) materials to PV modules to PV systems, the National Center for Photovoltaics (NCPV) at the National Renewable Energy Laboratory (NREL) pursues ...

  19. Measurements | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The National Center for Photovoltaics (NCPV) at NREL has world-leading capabilities in characterizing photovoltaic (PV) materials and devices. Spectral responsivity measurement ...

  20. NREL: Photovoltaics Research - Events

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    success. The following events and meetings are of interest to partners of NREL Photovoltaics (PV) Research and the National Center for Photovoltaics (NCPV). Printable Version...

  1. High-Efficiency Crystalline Photovoltaics | Photovoltaic Research...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the highest-efficiency photovoltaic devices involving single-crystal silicon and III-Vs. ... We are also a driving force in two industry-relevant areas: low-cost III-V photovoltaic ...

  2. Polycrystalline Thin-Film Photovoltaics | Photovoltaic Research...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Polycrystalline Thin-Film Photovoltaics Cadmium Telluride (CdTe) We develop processes and a range of materials for CdTe photovoltaic (PV) devices. Our work includes advanced ...

  3. NREL: Photovoltaics Research - Thin Film Photovoltaic Partnership...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Thin Film Photovoltaic Partnership Project NREL's Thin Film Photovoltaic (PV) Partnership Project led R&D on emerging thin-film solar technologies in the United States from 1994 to ...

  4. China Solar Photovoltaic Group CNPV aka Dongying Photovoltaic...

    OpenEI (Open Energy Information) [EERE & EIA]

    Group CNPV aka Dongying Photovoltaic Power Co Ltd or China Solar PV Jump to: navigation, search Name: China Solar Photovoltaic Group (CNPV, aka Dongying Photovoltaic Power Co Ltd...

  5. Photovoltaic solar concentrator

    SciTech Connect

    Nielson, Gregory N.; Cruz-Campa, Jose Luis; Okandan, Murat; Resnick, Paul J.; Sanchez, Carlos Anthony; Clews, Peggy J.; Gupta, Vipin P.

    2015-09-08

    A process including forming a photovoltaic solar cell on a substrate, the photovoltaic solar cell comprising an anchor positioned between the photovoltaic solar cell and the substrate to suspend the photovoltaic solar cell from the substrate. A surface of the photovoltaic solar cell opposite the substrate is attached to a receiving substrate. The receiving substrate may be bonded to the photovoltaic solar cell using an adhesive force or a metal connecting member. The photovoltaic solar cell is then detached from the substrate by lifting the receiving substrate having the photovoltaic solar cell attached thereto and severing the anchor connecting the photovoltaic solar cell to the substrate. Depending upon the type of receiving substrate used, the photovoltaic solar cell may be removed from the receiving substrate or remain on the receiving substrate for use in the final product.

  6. American Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics Jump to: navigation, search Logo: American Photovoltaics Name: American Photovoltaics Place: Houston, Texas Zip: 77002 Region: Texas Area Sector: Solar Product: Will...

  7. Project Profile: Evaluating the Causes of Photovoltaics Cost Reduction: Why

    Energy Saver

    is PV different? | Department of Energy Soft Costs » Project Profile: Evaluating the Causes of Photovoltaics Cost Reduction: Why is PV different? Project Profile: Evaluating the Causes of Photovoltaics Cost Reduction: Why is PV different? Logo of Massachusetts Institute of Technology. The bar chart below the logo shows the cost reduction in photovoltaics compared to other energy-conversion technologies. PV is performing better than coal, natural gas, nuclear fusion, wind, and solar thermal

  8. Tidal | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    Submitted by Ocop(5) Member 15 July, 2014 - 07:07 MHK LCOE Reporting Guidance Draft Cost Current DOE LCOE numerical modeling Performance Tidal Wave To normalize competing...

  9. Tidal Energy Research

    SciTech Connect

    Stelzenmuller, Nickolas; Aliseda, Alberto; Palodichuk, Michael; Polagye, Brian; Thomson, James; Chime, Arshiya; Malte, Philip

    2014-03-31

    This technical report contains results on the following topics: 1) Testing and analysis of sub-scale hydro-kinetic turbines in a flume, including the design and fabrication of the instrumented turbines. 2) Field measurements and analysis of the tidal energy resource and at a site in northern Puget Sound, that is being examined for turbine installation. 3) Conceptual design and performance analysis of hydro-kinetic turbines operating at high blockage ratio, for use for power generation and flow control in open channel flows.

  10. Organic Photovoltaic Solar Cells | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Organic Photovoltaic Solar Cells The National Center for Photovoltaics (NCPV) at NREL has strong complementary research capabilities in organic photovoltaic (OPV) cells, transparent conducting oxides (TCOs), combinatorial (combi) methods, molecular simulation methods, and atmospheric processing. From fundamental physical studies to applied research relating to solar industry needs, we are developing the new materials, device structures, and tools needed to create polymer-based solar cells that

  11. TidalStream | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    TidalStream Jump to: navigation, search Name: TidalStream Place: Southam, United Kingdom Zip: CV47 0HF Product: UK-based developer of platforms for tidal turbines. Coordinates:...

  12. NREL: Photovoltaics Research - Concentrator Photovoltaic (CPV...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Concentrator Photovoltaic (CPV) Report - Fraunhofer ISE and NREL Analyze Status of Market and Technology February 4, 2015 The German Fraunhofer Institute for Solar Energy Systems...

  13. Tidal Energy Limited | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Limited Jump to: navigation, search Name: Tidal Energy Limited (TEL) Place: Cardiff, Wales, United Kingdom Zip: CF23 8RS Product: Tidal stream device developer. Coordinates:...

  14. Tocardo Tidal Energy Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tocardo Tidal Energy Ltd Jump to: navigation, search Name: Tocardo Tidal Energy Ltd Address: De Weel 20 Place: Zijdewind Zip: 1736KB Region: Netherlands Sector: Marine and...

  15. Sandia Energy » Photovoltaic

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    feed 0 Sandian Contributes to Western Electricity Coordinating Council Photovoltaic Power Plant Model Validation Guideline http:energy.sandia.gov...

  16. Photovoltaics (Fact Sheet)

    SciTech Connect

    DOE Solar Energy Technologies Program

    2011-06-27

    The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its photovoltaics subprogram.

  17. Photovoltaics in the Classroom

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... 49 Other Materials for PV Cells ............ 53 Solar Angles and ... for Jicarilla modules * History of photovoltaics Purpose ...

  18. NREL: Photovoltaics Research - Engineering

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and Reliability team serves to improve PV technologies. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  19. Photovoltaics (Fact Sheet)

    SciTech Connect

    Not Available

    2011-06-01

    The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its photovoltaics subprogram.

  20. Renewable Energy Ready Home Solar Photovoltaic Specifications...

    Energy Saver

    Renewable Energy Ready Home Solar Photovoltaic Specifications Renewable Energy Ready Home Solar Photovoltaic Specifications Solar Photovoltaic Specification, Checklist and Guide, ...

  1. Photovoltaic device and method

    DOEpatents

    Cleereman, Robert J; Lesniak, Michael J; Keenihan, James R; Langmaid, Joe A; Gaston, Ryan; Eurich, Gerald K; Boven, Michelle L

    2015-01-27

    The present invention is premised upon an improved photovoltaic device ("PVD") and method of use, more particularly to an improved photovoltaic device with an integral locator and electrical terminal mechanism for transferring current to or from the improved photovoltaic device and the use as a system.

  2. Amorphous silicon photovoltaic devices

    DOEpatents

    Carlson, David E.; Lin, Guang H.; Ganguly, Gautam

    2004-08-31

    This invention is a photovoltaic device comprising an intrinsic or i-layer of amorphous silicon and where the photovoltaic device is more efficient at converting light energy to electric energy at high operating temperatures than at low operating temperatures. The photovoltaic devices of this invention are suitable for use in high temperature operating environments.

  3. High density photovoltaic

    SciTech Connect

    Haigh, R.E.; Jacobson, G.F.; Wojtczuk, S.

    1997-10-14

    Photovoltaic technology can directly generate high voltages in a solid state material through the series interconnect of many photovoltaic diodes. We are investigating the feasibility of developing an electrically isolated, high-voltage power supply using miniature photovoltaic devices that convert optical energy to electrical energy.

  4. Photovoltaic device and method

    SciTech Connect

    Cleereman, Robert; Lesniak, Michael J.; Keenihan, James R.; Langmaid, Joe A.; Gaston, Ryan; Eurich, Gerald K.; Boven, Michelle L.

    2015-11-24

    The present invention is premised upon an improved photovoltaic device ("PVD") and method of use, more particularly to an improved photovoltaic device with an integral locator and electrical terminal mechanism for transferring current to or from the improved photovoltaic device and the use as a system.

  5. Low Profile Power Conversion System for Rooftop Photovoltaic Power Systems

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    - Energy Innovation Portal 30062958 Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Find More Like This Return to Search Low

  6. Ecological safety of tidal-power projects

    SciTech Connect

    Fedorov, M. P.; Shilin, M. B.

    2010-07-15

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

  7. Photovoltaic Materials

    SciTech Connect

    Duty, C.; Angelini, J.; Armstrong, B.; Bennett, C.; Evans, B.; Jellison, G. E.; Joshi, P.; List, F.; Paranthaman, P.; Parish, C.; Wereszczak, A.

    2012-10-15

    The goal of the current project was to help make the US solar industry a world leader in the manufacture of thin film photovoltaics. The overall approach was to leverage ORNL’s unique characterization and processing technologies to gain a better understanding of the fundamental challenges for solar cell processing and apply that knowledge to targeted projects with industry members. ORNL has the capabilities in place and the expertise required to understand how basic material properties including defects, impurities, and grain boundaries affect the solar cell performance. ORNL also has unique processing capabilities to optimize the manufacturing process for fabrication of high efficiency and low cost solar cells. ORNL recently established the Center for Advanced Thin-film Systems (CATS), which contains a suite of optical and electrical characterization equipment specifically focused on solar cell research. Under this project, ORNL made these facilities available to industrial partners who were interested in pursuing collaborative research toward the improvement of their product or manufacturing process. Four specific projects were pursued with industrial partners: Global Solar Energy is a solar industry leader in full scale production manufacturing highly-efficient Copper Indium Gallium diSelenide (CIGS) thin film solar material, cells and products. ORNL worked with GSE to develop a scalable, non-vacuum, solution technique to deposit amorphous or nanocrystalline conducting barrier layers on untextured stainless steel substrates for fabricating high efficiency flexible CIGS PV. Ferro Corporation’s Electronic, Color and Glass Materials (“ECGM”) business unit is currently the world’s largest supplier of metallic contact materials in the crystalline solar cell marketplace. Ferro’s ECGM business unit has been the world's leading supplier of thick film metal pastes to the crystalline silicon PV industry for more than 30 years, and has had operational cells and

  8. Tidal Stream | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Stream Jump to: navigation, search Name: Tidal Stream Address: 76 Dukes Ave Place: London Zip: W4 2 AK Region: United Kingdom Sector: Marine and Hydrokinetic Phone Number: 01926...

  9. NREL: Photovoltaics Research - Awards for Photovoltaic Manufacturing...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Awards for Photovoltaic Manufacturing R&D The following research efforts within the PV Manufacturing R&D Project were honored with prestigious industry awards. 1995-AstroPower (now ...

  10. ALTERNATING CURRENT PHOTOVOLTAIC BUILDING BLOCK

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ALTERNATING CURRENT PHOTOVOLTAIC BUILDING BLOCK Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. SAND No. 2010-1111P U.S. Patent# 6,750,391 Technology Readiness Level:4 Key elements of the technology have been proven to work as expected in the laboratory environment TECHNOLOGY

  11. Company Partners in Photovoltaic Manufacturing R&D | Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Company Partners in Photovoltaic Manufacturing R&D More than 40 private-sector companies ... First Solar Glasstech Solar Global Photovoltaic Specialists Global Solar Energy Golden ...

  12. NREL: Photovoltaics Research - Photovoltaic Manufacturing R&D...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Manufacturing R&D Project Photo of blue solar cells being sorted in a ... NREL's Photovoltaic (PV) Manufacturing Research and Development (R&D) Project was a ...

  13. Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar panels line the rooftop of the parking garage at the south table mountain campus of NREL. National Center for Photovoltaics Inaugural History-from NCPV's inception in 1996 PV Manufacturing R&D Project Thin-Film PV Partnership Research Cell Record Efficiency Chart and Explanatory Notes NCPV Video The National Center for Photovoltaics (NCPV) works to advance the state of the art across the full spectrum of photovoltaic (PV) research and development at the National Renewable Energy

  14. Photovoltaic technology assessment

    SciTech Connect

    Backus, C.E.

    1981-01-01

    After a brief review of the history of photovoltaic devices and a discussion of the cost goals set for photovoltaic modules, the status of photovoltaic technology is assessed. Included are discussions of: current applications, present industrial production, low-cost silicon production techniques, energy payback periods for solar cells, advanced materials research and development, concentrator systems, balance-of-system components. Also discussed are some nontechnical aspects, including foreign markets, US government program approach, and industry attitudes and approaches. (LEW)

  15. Category:Earth Tidal Analysis | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Earth Tidal Analysis Jump to: navigation, search Geothermalpower.jpg Looking for the Earth Tidal Analysis page? For detailed information on Earth Tidal Analysis, click here....

  16. MHK Technologies/Deep Gen Tidal Turbines | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gen Tidal Turbines < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Deep Gen Tidal Turbines.jpg Technology Profile Primary Organization Tidal...

  17. nuclear

    National Nuclear Security Administration (NNSA)

    2%2A en U.S-, Japan Exchange Best Practices on Nuclear Emergency Response http:nnsa.energy.govmediaroompressreleasesu.s-japan-exchange-best-practices-nuclear-emergency-respon...

  18. Microsoft Word - RM1_Tidal Turbine_UW Tidal Resource-Abstract...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    turbine operating in a narrow, tidal channel. The site is a generalized version of Tacoma Narrows, Puget Sound, Washington. The resource is a mixed, mainly semidiurnal tidal...

  19. PHOTOVOLTAIC LIGHTING SYSTEM PERFORMANCE

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... The battery based utility interconnected PV inverter's output is dependant on irradiance and temperature conditions. The inverter output tracks the output of the photovoltaic array ...

  20. Facilities | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the facilities below in their research and development to provide foundational support for the photovoltaic (PV) industry and PV users. Photo of the Solar Research Energy Facility. ...

  1. NREL: Photovoltaics Research - News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    For archived editions of the NCPV Hotline. See also PV events. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  2. NREL: Photovoltaics Research - Webmaster

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    reply. Your name: Your email address: Your message: Send Message Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  3. Photovoltaics Business Models

    SciTech Connect

    Frantzis, L.; Graham, S.; Katofsky, R.; Sawyer, H.

    2008-02-01

    This report summarizes work to better understand the structure of future photovoltaics business models and the research, development, and demonstration required to support their deployment.

  4. Concentrating Photovoltaics (Presentation)

    SciTech Connect

    Kurtz, S.

    2009-01-20

    Solar is growing rapidly, and the concentrating photovoltaics industry-both high- and low-concentration cell approaches-may be ready to ramp production in 2009.

  5. National Laboratory Photovoltaics Research

    Energy.gov [DOE]

    DOE supports photovoltaic (PV) research and development and facilities at its national laboratories to accelerate progress toward achieving the SunShot Initiative's technological and economic...

  6. Ligitek Photovoltaic | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Jump to: navigation, search Name: Ligitek Photovoltaic Place: Taiwan Sector: Solar Product: Ligitek solar is a fully owned subsidiary of Ligitek Electronics, that will...

  7. Photovoltaic Module Qualification Plus Testing

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Module Qualification Plus Testing Sarah Kurtz, John Wohlgemuth, Michael ... CO 80401 303-275-3000 * www.nrel.gov Photovoltaic Module Qualification Plus Testing ...

  8. Photovoltaic Systems Evaluation Laboratory (PSEL)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Systems LaboratoryBrayton Lab Photovoltaic Systems Evaluation Laboratory PV ... Twitter Google + Vimeo Newsletter Signup SlideShare Photovoltaic Systems Evaluation ...

  9. NREL: Photovoltaics Research - Steve Rummel

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Moriarty, Carl Osterwald, Larry Ottoson, Steve Rummel, and Rafell Williams, "Rating Photovoltaics" 39th IEEE Photovoltaic Specialist Conference, Tampa Bay, Florida, June 16-21,...

  10. Integrated Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics Jump to: navigation, search Name: Integrated Photovoltaics Place: Sunnyvale, California Product: California-based stealth mode PV startup. Coordinates: 32.780338,...

  11. Solar Photovoltaic Technology Basics | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Photovoltaic Technology Basics Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process ...

  12. Microsystems Enabled Photovoltaics

    SciTech Connect

    Gupta, Vipin; Nielson, Greg; Okandan, Murat, Granata, Jennifer; Nelson, Jeff; Haney, Mike; Cruz-Campa, Jose Luiz

    2012-07-02

    Sandia's microsystems enabled photovoltaic advances combine mature technology and tools currently used in microsystem production with groundbreaking advances in photovoltaics cell design, decreasing production and system costs while improving energy conversion efficiency. The technology has potential applications in buildings, houses, clothing, portable electronics, vehicles, and other contoured structures.

  13. Photovoltaics industry profile

    SciTech Connect

    1980-10-01

    A description of the status of the US photovoltaics industry is given. Principal end-user industries are identified, domestic and foreign market trends are discussed, and industry-organized and US government-organized trade promotion events are listed. Trade associations and trade journals are listed, and a photovoltaic product manufacturers list is included. (WHK)

  14. Microsystems Enabled Photovoltaics

    ScienceCinema

    Gupta, Vipin; Nielson, Greg; Okandan, Murat, Granata, Jennifer; Nelson, Jeff; Haney, Mike; Cruz-Campa, Jose Luiz

    2016-07-12

    Sandia's microsystems enabled photovoltaic advances combine mature technology and tools currently used in microsystem production with groundbreaking advances in photovoltaics cell design, decreasing production and system costs while improving energy conversion efficiency. The technology has potential applications in buildings, houses, clothing, portable electronics, vehicles, and other contoured structures.

  15. Tidal Generation Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Generation Ltd EMEC This company is involved in the following MHK Technologies: Deep Gen Tidal Turbines This article is a stub. You can help OpenEI by expanding it. Tidal...

  16. Detailed Photovoltaic Analysis Simulation Spreadsheet

    Energy Science and Technology Software Center

    2008-12-31

    The software calculates photovoltaic system energy and financial performance via the utilization of very detailed parameters.

  17. Category:Photovoltaic Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Incentives Jump to: navigation, search Category for Photovoltaic Incentives. Pages in category "Photovoltaic Incentives" The following 107 pages are in this category,...

  18. Alternating Current Photovoltaic Building Block - Energy Innovation...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Alternating Current Photovoltaic Building Block Sandia National Laboratories Contact SNL About This...

  19. Category:Photovoltaic | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Jump to: navigation, search This is the Photovoltaic category. Pages in category "Photovoltaic" The following 7 pages are in this category, out of 7 total. A American...

  20. NREL: National Center for Photovoltaics Home Page

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    National Center for Photovoltaics The National Center for Photovoltaics (NCPV) at NREL focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV)...

  1. Photovoltaic module with removable wind deflector (Patent) |...

    Office of Scientific and Technical Information (OSTI)

    Photovoltaic module with removable wind deflector Title: Photovoltaic module with removable wind deflector A photovoltaic (PV) module assembly including a PV module, a deflector, ...

  2. Photovoltaic module with removable wind deflector (Patent) |...

    Office of Scientific and Technical Information (OSTI)

    Patent: Photovoltaic module with removable wind deflector Citation Details In-Document Search Title: Photovoltaic module with removable wind deflector A photovoltaic (PV) module ...

  3. Nanostructured Photovoltaics: - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Nanostructured Photovoltaics: Atomic Layer Deposition Thin Film Technology Enables Cost Effective Solar Cells Argonne National Laboratory Contact ANL About This Technology <p> Figure 1. Schematic illustration of an Argonne nanostructured photovoltaic device.</p> Figure 1. Schematic illustration of an Argonne nanostructured photovoltaic device. <p> Figure 2. ALD transparent conducting oxide coating on

  4. Photovoltaics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Photovoltaics Photovoltaics The SunShot Initiative supports the research and development of photovoltaic (PV) technologies to improve efficiency and reliability and to lower manufacturing costs in order to make solar electricity cost-competitive with other sources of energy by 2020. As of November 2015, four years into the decade-long SunShot Initiative, the solar industry is about 70% of the way to achieving SunShot's cost target of $0.06 per kilowatt-hour for utility-scale PV (based on 2010

  5. Maine Tidal Power Initiative: Environmental Impact Protocols For Tidal Power

    SciTech Connect

    Peterson, Michael Leroy; Zydlewski, Gayle Barbin; Xue, Huijie; Johnson, Teresa R.

    2014-02-02

    The Maine Tidal Power Initiative (MTPI), an interdisciplinary group of engineers, biologists, oceanographers, and social scientists, has been conducting research to evaluate tidal energy resources and better understand the potential effects and impacts of marine hydro-kinetic (MHK) development on the environment and local community. Project efforts include: 1) resource assessment, 2) development of initial device design parameters using scale model tests, 3) baseline environmental studies and monitoring, and 4) human and community responses. This work included in-situ measurement of the environmental and social response to the pre-commercial Turbine Generator Unit (TGU®) developed by Ocean Renewable Power Company (ORPC) as well as considering the path forward for smaller community scale projects.

  6. Photovoltaics: Separating Multiple Excitons

    SciTech Connect

    Nozik, A. J.

    2012-05-01

    Scientists have demonstrated an efficient process for generating multiple excitons in adjacent silicon nanocrystals from a single high-energy photon. Their findings could prove useful for a wide range of photovoltaic applications.

  7. Photovoltaics: A Diverse Technology

    Office of Energy Efficiency and Renewable Energy (EERE)

    This video illustrates the diversity of photovoltaic (PV) technology, which is due to innovations in PV materials, reductions in manufacturing costs, and expanding uses of the technology. A brief...

  8. Photovoltaic solar cell

    SciTech Connect

    Nielson, Gregory N; Okandan, Murat; Cruz-Campa, Jose Luis; Resnick, Paul J

    2013-11-26

    A photovoltaic solar cell for generating electricity from sunlight is disclosed. The photovoltaic solar cell comprises a plurality of spaced-apart point contact junctions formed in a semiconductor body to receive the sunlight and generate the electicity therefrom, the plurality of spaced-apart point contact junctions having a first plurality of regions having a first doping type and a second plurality of regions having a second doping type. In addition, the photovoltaic solar cell comprises a first electrical contact electrically connected to each of the first plurality of regions and a second electrical contact electrically connected to each of the second plurality of regions, as well as a passivation layer covering major surfaces and sidewalls of the photovoltaic solar cell.

  9. Photovoltaic solar cell

    SciTech Connect

    Nielson, Gregory N; Cruz-Campa, Jose Luis; Okandan, Murat; Resnick, Paul J

    2014-05-20

    A photovoltaic solar cell for generating electricity from sunlight is disclosed. The photovoltaic solar cell comprises a plurality of spaced-apart point contact junctions formed in a semiconductor body to receive the sunlight and generate the electricity therefrom, the plurality of spaced-apart point contact junctions having a first plurality of regions having a first doping type and a second plurality of regions having a second doping type. In addition, the photovoltaic solar cell comprises a first electrical contact electrically connected to each of the first plurality of regions and a second electrical contact electrically connected to each of the second plurality of regions, as well as a passivation layer covering major surfaces and sidewalls of the photovoltaic solar cell.

  10. Photovoltaic Research Facilities

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy (DOE) funds photovoltaic (PV) research and development (R&D) at its national laboratory facilities located throughout the country. To encourage further innovation,...

  11. Residential Photovoltaic Solar Panels

    Office of Energy Efficiency and Renewable Energy (EERE)

    This b-roll footage shows exteriors of two Colorado residences that use photovoltaic panels to collect renewable solar energy, thereby reducing their dependence on external electric power. Net...

  12. Photonic Design for Photovoltaics

    SciTech Connect

    Kosten, E.; Callahan, D.; Horowitz, K.; Pala, R.; Atwater, H.

    2014-08-28

    We describe photonic design approaches for silicon photovoltaics including i) trapezoidal broadband light trapping structures ii) broadband light trapping with photonic crystal superlattices iii) III-V/Si nanowire arrays designed for broadband light trapping.

  13. Photovoltaic module and interlocked stack of photovoltaic modules

    SciTech Connect

    Wares, Brian S.

    2014-09-02

    One embodiment relates to an arrangement of photovoltaic modules configured for transportation. The arrangement includes a plurality of photovoltaic modules, each photovoltaic module including a frame. A plurality of individual male alignment features and a plurality of individual female alignment features are included on each frame. Adjacent photovoltaic modules are interlocked by multiple individual male alignment features on a first module of the adjacent photovoltaic modules fitting into and being surrounded by corresponding individual female alignment features on a second module of the adjacent photovoltaic modules. Other embodiments, features and aspects are also disclosed.

  14. Amonix Photovoltaic System

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features the Amonix and Arizona Public Service (APS) partnership to install the world’s largest utility-scale concentrating photovoltaic (CPV) power plant in 2002. Photovoltaic (PV) systems at the APS facility use a combination of technologies. The systems in the foreground are single-axis tracking flat-plate silicon systems. Shown in the upper right are three large (35 kilowatt) Amonix CPV.

  15. Photovoltaics: The next generation

    SciTech Connect

    Wilson, A.

    1986-08-01

    The development of photovoltaics in the United States, with a few notable exceptions, has been carried out by the oil industry. Companies such as Arco, Exxon, Mobil and Sohio have played a tremendously important role in bringing photovoltaic technology to its current state of development. Many of these companies are continuing very active programs in pv, including the investigation of new and potentially far-reaching technologies.

  16. Photovoltaic systems and applications

    SciTech Connect

    Not Available

    1982-01-01

    Abstracts are given of presentations given at a project review meeting held at Albuquerque, NM. The proceedings cover the past accomplishments and current activities of the Photovoltaic Systems Research, Balance-of-System Technology Development and System Application Experiments Projects at Sandia National Laboratories. The status of intermediate system application experiments and residential system analysis is emphasized. Some discussion of the future of the Photovoltaic Program in general, and the Sandia projects in particular is also presented.

  17. Amonix Photovoltaic System

    Energy.gov [DOE]

    This photograph features the Amonix and Arizona Public Service (APS) partnership to install the world’s largest utility-scale concentrating photovoltaic (CPV) power plant in 2002. Photovoltaic (PV) systems at the APS facility use a combination of technologies. The systems in the foreground are single-axis tracking flat-plate silicon systems. Shown in the upper right are three large (35 kilowatt) Amonix CPV.

  18. ARRAY OPTIMIZATION FOR TIDAL ENERGY EXTRACTION IN A TIDAL CHANNEL – A NUMERICAL MODELING ANALYSIS

    SciTech Connect

    Yang, Zhaoqing; Wang, Taiping; Copping, Andrea

    2014-04-18

    This paper presents an application of a hydrodynamic model to simulate tidal energy extraction in a tidal dominated estuary in the Pacific Northwest coast. A series of numerical experiments were carried out to simulate tidal energy extraction with different turbine array configurations, including location, spacing and array size. Preliminary model results suggest that array optimization for tidal energy extraction in a real-world site is a very complex process that requires consideration of multiple factors. Numerical models can be used effectively to assist turbine siting and array arrangement in a tidal turbine farm for tidal energy extraction.

  19. Subtask 3: Nanostructured Architectures for Photovoltaic and...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Subtask 3: Nanostructured Architectures for Photovoltaic and Photochemical Energy ... the science and technology of photovoltaic and photochemical solar energy conversion. ...

  20. Ultrafast Photovoltaic Response in Ferroelectric Nanolayers ...

    Office of Scientific and Technical Information (OSTI)

    Ultrafast Photovoltaic Response in Ferroelectric Nanolayers Citation Details In-Document Search Title: Ultrafast Photovoltaic Response in Ferroelectric Nanolayers Authors:...

  1. Photovoltaic Manufacturing R&D Project | Photovoltaic Research...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Manufacturing R&D Project NREL's Photovoltaic (PV) Manufacturing Research and Development (R&D) Project was a cost-shared partnership between NREL and a number of ...

  2. Solar Energy Technologies Program: Photovoltaics

    SciTech Connect

    2009-10-26

    Fact sheet summarizing the goals and activities of the DOE Solar Energy Technologies Program efforts within its photovoltaics subprogram.

  3. NREL: Photovoltaics Research -Kent Terwilliger

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    for: Troubleshooting and repairing environmental test chambers. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  4. NREL: Photovoltaics Research - Greg Perrin

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    maintenance, and repair; machining and other lab support. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  5. Tidal Sails AS | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sails AS Jump to: navigation, search Name: Tidal Sails AS Address: Standgaten 130 Place: Haugesund Zip: 5531 Region: Norway Sector: Marine and Hydrokinetic Phone Number: +32 474 98...

  6. Tidal Hydraulic Generators Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Hydraulic Generators Ltd Jump to: navigation, search Name: Tidal Hydraulic Generators Ltd Address: 14 Thislesboon Drive Place: Mumbles Zip: SA3 4HY Region: United Kingdom Sector:...

  7. Pennamaquan Tidal Power LLC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LLC Jump to: navigation, search Name: Pennamaquan Tidal Power LLC Address: 45 Memorial Circle PO Box 1058 Place: Augusta Zip: 4332 Region: United States Sector: Marine and...

  8. Acoustic Effects of Hydrokinetic Tidal Turbines

    SciTech Connect

    Polagye, Brian

    2011-11-01

    This presentation from the Water Peer Review highlights one of the program's marine and hyrokinetics environmental projects to determine the likely acoustic effects from a tidal energy device.

  9. Earth Tidal Analysis | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    of earth tide response of three deep, confined aquifers Earth Tidal Analysis At Raft River Geothermal Area (1980) Raft River Geothermal Area 1980 1980 Reservoir response to...

  10. Tidal Energy Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Ocean » Tidal Energy Basics Tidal Energy Basics August 16, 2013 - 4:26pm Addthis Photo of the ocean rising along the beach. Some of the oldest ocean energy technologies use tidal power. All coastal areas experience two high tides and two low tides over a period of slightly more than 24 hours. For those tidal differences to be harnessed into electricity, the difference between high and low tides must be more than 16 feet (or at least 5 meters). However, there are only about

  11. European Wave and Tidal Energy Conference

    Energy.gov [DOE]

    The European Wave and Tidal Energy Conference (EWTEC) series are international, technical and scientific conferences, focussed on ocean renewable energy and widely respected for their commitment to...

  12. Tidal Energy Test Platform | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Test Platform Jump to: navigation, search Basic Specifications Facility Name Tidal Energy Test Platform Overseeing Organization University of New Hampshire Hydrodynamics...

  13. Nanowires enabling strained photovoltaics

    SciTech Connect

    Greil, J.; Bertagnolli, E.; Lugstein, A.; Birner, S.

    2014-04-21

    Photovoltaic nano-devices have largely been relying on charge separation in conventional p-n junctions. Junction formation via doping, however, imposes major challenges in process control. Here, we report on a concept for photovoltaic energy conversion at the nano scale without the need for intentional doping. Our approach relies on charge carrier separation in inhomogeneously strained germanium nanowires (Ge NWs). This concept utilizes the strain-induced gradient in bandgap along tapered NWs. Experimental data confirms the feasibility of strain-induced charge separation in individual vapor-liquid-solid grown Ge NW devices with an internal quantum efficiency of ?5%. The charge separation mechanism, though, is not inherently limited to a distinct material. Our work establishes a class of photovoltaic nano-devices with its opto-electronic properties engineered by size, shape, and applied strain.

  14. Photovoltaic Subcontract Program

    SciTech Connect

    Surek, Thomas; Catalano, Anthony

    1993-03-01

    This report summarizes the fiscal year (FY) 1992 progress of the subcontracted photovoltaic (PV) research and development (R D) performed under the Photovoltaic Advanced Research and Development Project at the National Renewable Energy Laboratory (NREL)-formerly the Solar Energy Research Institute (SERI). The mission of the national PV program is to develop PV technology for large-scale generation of economically competitive electric power in the United States. The technical sections of the report cover the main areas of the subcontract program: the Crystalline Materials and Advanced Concepts project, the Polycrystalline Thin Films project, Amorphous Silicon Research project, the Photovoltaic Manufacturing Technology (PVMaT) project, PV Module and System Performance and Engineering project, and the PV Analysis and Applications Development project. Technical summaries of each of the subcontracted programs provide a discussion of approaches, major accomplishments in FY 1992, and future research directions.

  15. EA-341 Photovoltaic Technologies, LLC | Department of Energy

    Office of Environmental Management (EM)

    1 Photovoltaic Technologies, LLC EA-341 Photovoltaic Technologies, LLC Order authorizing Photovoltaic Technologies, LLC to export electric energy to Mexico EA- 341 Photovoltaic ...

  16. High efficiency photovoltaic device

    DOEpatents

    Guha, Subhendu; Yang, Chi C.; Xu, Xi Xiang

    1999-11-02

    An N-I-P type photovoltaic device includes a multi-layered body of N-doped semiconductor material which has an amorphous, N doped layer in contact with the amorphous body of intrinsic semiconductor material, and a microcrystalline, N doped layer overlying the amorphous, N doped material. A tandem device comprising stacked N-I-P cells may further include a second amorphous, N doped layer interposed between the microcrystalline, N doped layer and a microcrystalline P doped layer. Photovoltaic devices thus configured manifest improved performance, particularly when configured as tandem devices.

  17. Asphaltene based photovoltaic devices

    DOEpatents

    Chianelli, Russell R.; Castillo, Karina; Gupta, Vipin; Qudah, Ali M.; Torres, Brenda; Abujnah, Rajib E.

    2016-03-22

    Photovoltaic devices and methods of making the same, are disclosed herein. The cell comprises a photovoltaic device that comprises a first electrically conductive layer comprising a photo-sensitized electrode; at least one photoelectrochemical layer comprising metal-oxide particles, an electrolyte solution comprising at least one asphaltene fraction, wherein the metal-oxide particles are optionally dispersed in a surfactant; and a second electrically conductive layer comprising a counter-electrode, wherein the second electrically conductive layer comprises one or more conductive elements comprising carbon, graphite, soot, carbon allotropes or any combinations thereof.

  18. Concentrating photovoltaic solar panel

    DOEpatents

    Cashion, Steven A; Bowser, Michael R; Farrelly, Mark B; Hines, Braden E; Holmes, Howard C; Johnson, Jr., Richard L; Russell, Richard J; Turk, Michael F

    2014-04-15

    The present invention relates to photovoltaic power systems, photovoltaic concentrator modules, and related methods. In particular, the present invention features concentrator modules having interior points of attachment for an articulating mechanism and/or an articulating mechanism that has a unique arrangement of chassis members so as to isolate bending, etc. from being transferred among the chassis members. The present invention also features adjustable solar panel mounting features and/or mounting features with two or more degrees of freedom. The present invention also features a mechanical fastener for secondary optics in a concentrator module.

  19. Reticulated Organic Photovoltaics

    SciTech Connect

    Schiros T.; Yager K.; Mannsfeld S.; Chiu C.-Y.; Ciston J.; Gorodetsky A.; Palma M.; Bullard Z.; Kramer T.; Delongchamp D.; Fischer D.; Kymissis I.; Toney M.F.; Nuckolls C.

    2012-03-21

    This paper shows how the self-assembled interlocking of two nanostructured materials can lead to increased photovoltaic performance. A detailed picture of the reticulated 6-DBTTC/C{sub 60} organic photovoltaic (OPV) heterojunction, which produces devices approaching the theoretical maximum for these materials, is presented from near edge X-ray absorption spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), Grazing Incidence X-ray diffraction (GIXD) and transmission electron microscopy (TEM). The complementary suite of techniques shows how self-assembly can be exploited to engineer the interface and morphology between the cables of donor (6-DBTTC) material and a polycrystalline acceptor (C{sub 60}) to create an interpenetrating network of pure phases expected to be optimal for OPV device design. Moreover, we find that there is also a structural and electronic interaction between the two materials at the molecular interface. The data show how molecular self-assembly can facilitate 3-D nanostructured photovoltaic cells that are made with the simplicity and control of bilayer device fabrication. The significant improvement in photovoltaic performance of the reticulated heterojunction over the flat analog highlights the potential of these strategies to improve the efficiency of organic solar cells.

  20. Sandia Photovoltaics Program

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Photovoltaics Program Managers Charlie Hanley and Jeff Nelson Solar Program Mission * Work with Solar industry to develop new integrated components and systems - World Class measurements and characterization capabilities and facilities - Enhanced understanding of performance & reliability - Improved, integrated overall systems - Increased manufacturing yield and throughput * Develop innovative technology solutions by partnering with internal and external R&D groups * Perform

  1. Multiple gap photovoltaic device

    DOEpatents

    Dalal, Vikram L.

    1981-01-01

    A multiple gap photovoltaic device having a transparent electrical contact adjacent a first cell which in turn is adjacent a second cell on an opaque electrical contact, includes utilizing an amorphous semiconductor as the first cell and a crystalline semiconductor as the second cell.

  2. Thin film photovoltaic cell

    DOEpatents

    Meakin, John D.; Bragagnolo, Julio

    1982-01-01

    A thin film photovoltaic cell having a transparent electrical contact and an opaque electrical contact with a pair of semiconductors therebetween includes utilizing one of the electrical contacts as a substrate and wherein the inner surface thereof is modified by microroughening while being macro-planar.

  3. Photovoltaic radiation detector element

    DOEpatents

    Agouridis, Dimitrios C.

    1983-01-01

    A radiation detector element is formed of a body of semiconductor material, a coating on the body which forms a photovoltaic junction therewith, and a current collector consisting of narrow metallic strips, the aforesaid coating having an opening therein the edge of which closely approaches but is spaced from the current collector strips.

  4. Photovoltaics (Fact Sheet)

    SciTech Connect

    DOE Solar Energy Technologies Program

    2011-10-13

    DOE works with national labs, academia, and industry to support the domestic photovoltaics (PV) industry and research enterprise. SunShot aims to achieve widespread, unsubsidized cost-competitiveness through an applied research and development (R&D) portfolio spanning PV materials, devices, and manufacturing technologies.

  5. Photovoltaics (Fact Sheet)

    SciTech Connect

    Not Available

    2012-11-01

    The U.S. Department of Energy (DOE) works with industry, academia, national laboratories, and other government agencies to advance solar photovoltaics (PV) domestically. The SunShot Initiative aims to achieve widespread, unsubsidized cost-competitiveness through an applied research and development (R&D) portfolio spanning PV materials, devices, and manufacturing technologies.

  6. Photovoltaics (Fact Sheet)

    SciTech Connect

    Not Available

    2011-10-01

    DOE works with national labs, academia, and industry to support the domestic photovoltaics (PV) industry and research enterprise. SunShot aims to achieve widespread, unsubsidized cost-competitiveness through an applied research and development (R&D) portfolio spanning PV materials, devices, and manufacturing technologies.

  7. Formed photovoltaic module busbars

    SciTech Connect

    Rose, Douglas; Daroczi, Shan; Phu, Thomas

    2015-11-10

    A cell connection piece for a photovoltaic module is disclosed herein. The cell connection piece includes an interconnect bus, a plurality of bus tabs unitarily formed with the interconnect bus, and a terminal bus coupled with the interconnect bus. The plurality of bus tabs extend from the interconnect bus. The terminal bus includes a non-linear portion.

  8. Photovoltaic radiation detector element

    DOEpatents

    Agouridis, D.C.

    1980-12-17

    A radiation detector element is formed of a body of semiconductor material, a coating on the body which forms a photovoltaic junction therewith, and a current collector consisting of narrow metallic strips, the aforesaid coating having an opening therein in the edge of which closely approaches but is spaced from the current collector strips.

  9. Hydra Tidal Energy Technology AS | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Energy Technology AS Jump to: navigation, search Name: Hydra Tidal Energy Technology AS Address: PO Box 399 Place: Harstad Zip: 9484 Region: Norway Sector: Marine and...

  10. Verdant-Roosevelt Island Tidal Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Verdant-Roosevelt Island Tidal Energy Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleVerdant-RooseveltIslandTidalEnergy&oldid680702" ...

  11. MHK Technologies/Sihwa tidal barrage power plant | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Sihwa tidal barrage power plant < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Sihwa tidal barrage power plant.jpg Technology Profile...

  12. MHK Technologies/Tidal Delay | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Delay < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Delay.png Technology Profile Primary Organization Woodshed Technologies Ltd...

  13. Severn Tidal Power Group STpg | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Severn Tidal Power Group STpg Jump to: navigation, search Name: Severn Tidal Power Group STpg Region: United Kingdom Sector: Marine and Hydrokinetic Website: http: This company is...

  14. MHK Technologies/Uldolmok Pilot Tidal Current Power Plant | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Uldolmok Pilot Tidal Current Power Plant < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Uldolmok Pilot Tidal Current Power Plant.jpg...

  15. MHK Technologies/Jiangxia Tidal Power Station | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Jiangxia Tidal Power Station < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Jiangxia Tidal Power Station.jpg Technology Profile Primary...

  16. High Fidelity Evaluation of Tidal Turbine Performance for Industry...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fidelity Evaluation of Tidal Turbine Performance for Industry Partner - Sandia Energy ... High Fidelity Evaluation of Tidal Turbine Performance for Industry Partner Home...

  17. MHK Technologies/Scotrenewables Tidal Turbine SRTT | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Turbine SRTT < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Scotrenewables Tidal Turbine SRTT.jpg Technology Profile Primary...

  18. MHK Technologies/Rotech Tidal Turbine RTT | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Rotech Tidal Turbine RTT < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Rotech Tidal Turbine RTT.jpg Technology Profile Primary Organization...

  19. MHK Projects/Tidal Generation Ltd EMEC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Overseeing Organization Tidal Generation Ltd Project Technology *MHK TechnologiesDeep Gen Tidal Turbines Project Licensing Environmental Monitoring and Mitigation Efforts See...

  20. The Wash Tidal Barrier Corporation | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump to: navigation, search Name: The Wash Tidal Barrier Corporation Place: Cambridge, England, United Kingdom Zip: CB24 8RX Product: Company building a tidal barrier...

  1. Inaugural History of the National Center for Photovoltaics | Photovoltaic

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research | NREL Inaugural History of the National Center for Photovoltaics In November of 1996, the U.S. Department of Energy (DOE) announced the newly formed National Center for Photovoltaics (NCPV) to be the focal point for developing technology and disseminating information about photovoltaics (PV) in the United States. When created, the NCPV's long-term goals were for PV modules and systems to reach still higher efficiencies with improved reliability, while lowering costs. Then, as now,

  2. Photovoltaic module and interlocked stack of photovoltaic modules

    DOEpatents

    Wares, Brian S.

    2012-09-04

    One embodiment relates to an arrangement of photovoltaic modules configured for transportation. The arrangement includes a plurality of photovoltaic modules, each photovoltaic module including a frame having at least a top member and a bottom member. A plurality of alignment features are included on the top member of each frame, and a plurality of alignment features are included on the bottom member of each frame. Adjacent photovoltaic modules are interlocked by the alignment features on the top member of a lower module fitting together with the alignment features on the bottom member of an upper module. Other embodiments, features and aspects are also disclosed.

  3. Accomplishments in Photovoltaic Manufacturing R&D | Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Accomplishments in Photovoltaic Manufacturing R&D Successful efforts within the PV Manufacturing R&D Project were recognized by the solar industry. Key highlights from the project ...

  4. Temperature compensated photovoltaic array

    DOEpatents

    Mosher, Dan Michael

    1997-11-18

    A temperature compensated photovoltaic module (20) comprised of a series of solar cells (22) having a thermally activated switch (24) connected in parallel with several of the cells (22). The photovoltaic module (20) is adapted to charge conventional batteries having a temperature coefficient (TC) differing from the temperature coefficient (TC) of the module (20). The calibration temperatures of the switches (24) are chosen whereby the colder the ambient temperature for the module (20), the more switches that are on and form a closed circuit to short the associated solar cells (22). By shorting some of the solar cells (22) as the ambient temperature decreases, the battery being charged by the module (20) is not excessively overcharged at lower temperatures. PV module (20) is an integrated solution that is reliable and inexpensive.

  5. Temperature compensated photovoltaic array

    DOEpatents

    Mosher, D.M.

    1997-11-18

    A temperature compensated photovoltaic module comprises a series of solar cells having a thermally activated switch connected in parallel with several of the cells. The photovoltaic module is adapted to charge conventional batteries having a temperature coefficient differing from the temperature coefficient of the module. The calibration temperatures of the switches are chosen whereby the colder the ambient temperature for the module, the more switches that are on and form a closed circuit to short the associated solar cells. By shorting some of the solar cells as the ambient temperature decreases, the battery being charged by the module is not excessively overcharged at lower temperatures. PV module is an integrated solution that is reliable and inexpensive. 2 figs.

  6. Photovoltaic Efficiency Measurements

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Efficiency Measurements Keith Emery National Renewable Energy Lab 1617 Cole Blvd. Golden,CO 80401 Email:keith_emery@nrel.gov Cells: Coordinator: Tom Moriarty Charles Mack Modules: Coordinator: Steve Rummel Allen Anderberg Laurence Ottoson Concentrator Cells : James Kiehl NCPV M&C Mgmt/Main. Contracts P. Sheldon Analytical Microscopy Task M. Al-Jassim Cell & Module Performance Task K. Emery Surface Analysis Task S. Asher Electro-Optical Charact. Task R. Ahrenkiel Process

  7. Photovoltaic-thermal collectors

    DOEpatents

    Cox, III, Charles H.

    1984-04-24

    A photovoltaic-thermal solar cell including a semiconductor body having antireflective top and bottom surfaces and coated on each said surface with a patterned electrode covering less than 10% of the surface area. A thermal-absorbing surface is spaced apart from the bottom surface of the semiconductor and a heat-exchange fluid is passed between the bottom surface and the heat-absorbing surface.

  8. Iron Chalcogenide Photovoltaic Absorbers

    SciTech Connect

    Yu, Liping; Lany, Stephan; Kykyneshi, Robert; Jieratum, Vorranutch; Ravichandran, Ram; Pelatt, Brian; Altschul, Emmeline; Platt, Heather A. S.; Wager, John F.; Keszler, Douglas A.; Zunger, Alex

    2011-08-10

    An integrated computational and experimental study of FeS? pyrite reveals that phase coexistence is an important factor limiting performance as a thin-film solar absorber. This phase coexistence is suppressed with the ternary materials Fe?SiS? and Fe?GeS?, which also exhibit higher band gaps than FeS?. Thus, the ternaries provide a new entry point for development of thin-film absorbers and high-efficiency photovoltaics.

  9. Device Performance | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Device Performance In the National Center for Photovoltaics (NCPV) at NREL, the Device Performance group performs current-voltage, quantum efficiency, and other measurements on a wide range of photovoltaic cell and module technologies-including commercial, developmental, and research samples-for scientists in the photovoltaic industry and at universities. Our equipment and techniques are unparalleled, and the expertise of our current staff covers more than 190 person-years. Capabilities Our

  10. Photovoltaic module reliability workshop

    SciTech Connect

    Mrig, L.

    1990-01-01

    The paper and presentations compiled in this volume form the Proceedings of the fourth in a series of Workshops sponsored by Solar Energy Research Institute (SERI/DOE) under the general theme of photovoltaic module reliability during the period 1986--1990. The reliability Photo Voltaic (PV) modules/systems is exceedingly important along with the initial cost and efficiency of modules if the PV technology has to make a major impact in the power generation market, and for it to compete with the conventional electricity producing technologies. The reliability of photovoltaic modules has progressed significantly in the last few years as evidenced by warranties available on commercial modules of as long as 12 years. However, there is still need for substantial research and testing required to improve module field reliability to levels of 30 years or more. Several small groups of researchers are involved in this research, development, and monitoring activity around the world. In the US, PV manufacturers, DOE laboratories, electric utilities and others are engaged in the photovoltaic reliability research and testing. This group of researchers and others interested in this field were brought together under SERI/DOE sponsorship to exchange the technical knowledge and field experience as related to current information in this important field. The papers presented here reflect this effort.

  11. Photovoltaic self-assembly.

    SciTech Connect

    Lavin, Judith; Kemp, Richard Alan; Stewart, Constantine A.

    2010-10-01

    This late-start LDRD was focused on the application of chemical principles of self-assembly on the ordering and placement of photovoltaic cells in a module. The drive for this chemical-based self-assembly stems from the escalating prices in the 'pick-and-place' technology currently used in the MEMS industries as the size of chips decreases. The chemical self-assembly principles are well-known on a molecular scale in other material science systems but to date had not been applied to the assembly of cells in a photovoltaic array or module. We explored several types of chemical-based self-assembly techniques, including gold-thiol interactions, liquid polymer binding, and hydrophobic-hydrophilic interactions designed to array both Si and GaAs PV chips onto a substrate. Additional research was focused on the modification of PV cells in an effort to gain control over the facial directionality of the cells in a solvent-based environment. Despite being a small footprint research project worked on for only a short time, the technical results and scientific accomplishments were significant and could prove to be enabling technology in the disruptive advancement of the microelectronic photovoltaics industry.

  12. Reflectance Spectroscopy | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reflectance Spectroscopy In a fraction of a second, the photovoltaic (PV) Reflectometer measures the reflectance spectrum of a wafer or cell that is dimensionally within 6 in. 6 ...

  13. Photovoltaic Cart Receives Presidential Award

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features a photovoltaic (PV)-powerd cart that members of the Facilities Energy Management team and Fleet Services organization at Sandia National Laboratories designed. With the...

  14. Materials Discovery | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Discovery The National Center for Photovoltaics (NCPV) research in materials discovery serves as a foundation for technological progress in renewable energies. Our experimental ...

  15. Photovoltaics Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Inc Jump to: navigation, search Name: Photovoltaics Inc Place: Ft. Pierce, Florida Zip: 34981 Product: Makes nano crystalline silicon particles and collides, and has over 22...

  16. NREL: Photovoltaics Research - Bill Sekulic

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Silicon Modules to Qualify Their Resistance to System Voltage Stress." Progress in Photovoltaics: Research and Applications, 22(7): 775-83; Golden, CO: National Renewable Energy...

  17. NREL: Photovoltaics Research - Bill Marion

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL Publications View NREL publications for this staff member. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  18. NREL: Photovoltaics Research - NCPV Hotline

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    | April-June | July-September | October-December Annual Index Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  19. Photovoltaic Films - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The LANL solar power portfolio includes breakthrough technologies for reducing photovoltaic solar cell manufacturing costs, reducing capital expenditures, reducing the dependence ...

  20. Glitter-Sized Solar Photovoltaics

    Office of Energy Efficiency and Renewable Energy (EERE)

    Featured in this photograph are tiny glitter-sized photovoltaic cells, developed by Sandia National Laboratories scientists, that could revolutionize the way solar energy is collected and used....

  1. Solar photovoltaics for development applications

    SciTech Connect

    Shepperd, L.W.; Richards, E.H.

    1993-08-01

    This document introduces photovoltaic technology to individuals and groups specializing in development activities. Examples of actual installations illustrate the many services supplied by photovoltaic systems in development applications, including water pumping, lighting, health care, refrigeration, communications, and a variety of productive uses. The various aspects of the technology are explored to help potential users evaluate whether photovoltaics can assist them in achieving their organizational goals. Basic system design, financing techniques, and the importance of infrastructure are included, along with additional sources of information and major US photovoltaic system suppliers.

  2. Utility-scale photovoltaic concentrators

    SciTech Connect

    None, None

    2009-01-18

    The photovoltaics concentrators section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  3. Jiaxing Winsaint Photovoltaic | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Winsaint Photovoltaic Jump to: navigation, search Name: Jiaxing Winsaint Photovoltaic Place: Jiashan Town, Zhejiang Province, China Zip: 314100 Product: China-based manufacturer of...

  4. Dazhan Photovoltaic Co | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Dazhan Photovoltaic Co Jump to: navigation, search Name: Dazhan Photovoltaic Co Place: Wenzhou City, Zhejiang Province, China Sector: Solar Product: China-based solar energy cell...

  5. Shaanxi Photovoltaic Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Co Ltd Jump to: navigation, search Name: Shaanxi Photovoltaic Co Ltd Place: Shaanxi Province, China Product: Shaanxi-based intergrated PV company. References: Shaanxi Photovoltaic...

  6. Institute of Concentration Photovoltaic Systems ISFOC | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Systems ISFOC Jump to: navigation, search Name: Institute of Concentration Photovoltaic Systems (ISFOC) Place: Puertallano, Spain Zip: 13500 Product: Part of the R&D...

  7. British Photovoltaic Association | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Association Jump to: navigation, search Name: British Photovoltaic Association Place: Milton Keynes, United Kingdom Zip: MK5 8NG Product: Trade body for the PV...

  8. Jinzhou Jinmao Photovoltaic Technology | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jinmao Photovoltaic Technology Jump to: navigation, search Name: Jinzhou Jinmao Photovoltaic Technology Place: Jinzhou, Liaoning Province, China Product: China-based manufacturer...

  9. American Photovoltaics LP | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics LP Place: Houston, Texas Product: Manufactures and markets thin-film photovoltaic modules. Coordinates: 29.76045, -95.369784 Show Map Loading map......

  10. Atmospheric Processing Platform | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    tools for depositing, processing, and characterizing photovoltaic materials and devices. ... and is applicable to a wide range of photovoltaic (PV) technologies including waferfilm ...

  11. PROJECT PROFILE: Photovoltaic Stakeholder Engagement Initiatives...

    Energy.gov [DOE] (indexed site)

    Laboratory relating to photovoltaic (PV) outreach at the national and international level. APPROACH The International Energy Agency (IEA) Photovoltaic Power Systems Programme ...

  12. Materials and Devices | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and Devices The National Center for Photovoltaics (NCPV) at NREL develops photovoltaic (PV) materials and devices to achieve higher performance and reliability at lower cost and to ...

  13. Performance of Utility Interconnected Photovoltaic Inverters

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Utility Interconnected Photovoltaic Inverters Operating Beyond Typical Modes of ... penetration of utility interconnected photovoltaic (PV) inverters can affect the utility ...

  14. Photovoltaic Theory and Modeling - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Theory and Modeling Los Alamos National Laboratory Contact LANL About This ... necessary to make electricity from photovoltaic (PV) technologies cost-competitive ...

  15. PROJECT PROFILE: Rapid Development of Disruptive Photovoltaic...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Rapid Development of Disruptive Photovoltaic Technologies PROJECT PROFILE: Rapid Development of Disruptive Photovoltaic Technologies Funding Opportunity: SuNLaMP SunShot ...

  16. Device Performance Capabilities | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Device Performance Capabilities Our Photovoltaic Device Performance group designs, ... internal to NREL, as well as the photovoltaic (PV) community at large-in the area of ...

  17. Reliability and Engineering | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reliability and Engineering In the National Center for Photovoltaics (NCPV) at NREL, we focus on photovoltaic (PV) reliability research and development (R&D) to improve PV ...

  18. Funding Opportunity Announcement: Photovoltaic Research & Development...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Photovoltaic Research & Development (PVRD) Funding Opportunity Announcement: Photovoltaic Research & Development (PVRD) Funding Number: DE-FOA-0001387 Funding Amount: 20,000,000 ...

  19. NREL Raises Rooftop Photovoltaic Technical Potential Estimate...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Raises Rooftop Photovoltaic Technical Potential Estimate New analysis nearly doubles ... its estimate of total U.S. technical potential for rooftop photovoltaic (PV) systems. ...

  20. Accelerated Testing and Analysis | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Standards Development for Photovoltaic Reliability. In collaboration with PVQAT, the NCPV ... NCPV researchers work through the International Photovoltaic (PV) Quality Assurance (QA) ...

  1. Sandia Energy » Photovoltaic Systems Evaluation Laboratory ...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    feed 0 Sandians Win 'Best Paper' Award at Photovoltaic Conference in Japan http:energy.sandia.govsandians-win-best-paper-award-at-photovoltaic-conference-in-j...

  2. Organic Photovoltaics Research | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Photovoltaics II Projects) University of Michigan (Next Generation Photovoltaics 3 Projects) Benefits The benefits promised by OPV solar cells include: Low-cost manufacturing: ...

  3. Photovoltaics Value Clearinghouse | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics Value Clearinghouse Jump to: navigation, search The Photovoltaics Value Clearinghouse was developed by NREL and Clean Power Research.1 The PV Value Clearinghouse is...

  4. Earth-abundant semiconductors for photovoltaic applications ...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Earth-abundant semiconductors for photovoltaic applications Thin film photovoltaics (solar cells) has the potential to revolutionize our energy landscape by producing clean,...

  5. Photovoltaic Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Addthis Related Articles Quiz: Test Your Solar IQ Energy 101: Solar Photovoltaics Photovoltaic Cell Basics Energy Basics Home Renewable Energy Biomass Geothermal Hydrogen & Fuel ...

  6. Photovoltaic Cell Performance Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Performance Basics Photovoltaic Cell Performance Basics August 19, 2013 - 4:55pm Addthis Photovoltaic (PV), or solar cells use the energy in sunlight to produce electricity. ...

  7. Photovoltaics and Electricity - Energy Explained, Your Guide...

    Energy Information Administration (EIA) (indexed site)

    ... Photovoltaic cells convert sunlight into electricity A photovoltaic (PV) cell, commonly called a solar cell, is a nonmechanical device that converts sunlight directly into ...

  8. Advancing Solar Through Photovoltaic Technology Innovations ...

    Energy Saver

    Advancing Solar Through Photovoltaic Technology Innovations Advancing Solar Through Photovoltaic Technology Innovations April 19, 2011 - 5:17pm Addthis At NREL's High-Intensity ...

  9. Photovoltaic Research and Development - Small Innovative Projects...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Research and Development - Small Innovative Projects in Solar (PVRD-SIPS) Photovoltaic Research and Development - Small Innovative Projects in Solar (PVRD-SIPS) Photovoltaic ...

  10. Aurora Photovoltaics Manufacturing | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics Manufacturing Jump to: navigation, search Name: Aurora Photovoltaics Manufacturing Place: Lawrenceville, New Jersey Zip: 8648 Sector: Solar Product: A subsidiary of...

  11. Southwest Photovoltaic Systems Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Southwest Photovoltaic Systems Inc Jump to: navigation, search Name: Southwest Photovoltaic Systems Inc Place: Tomball, Texas Zip: 77375 Product: Distributor of small scale PV...

  12. Microsoft Word - RM1_Tidal Turbine_UW Tidal Resource-Abstract...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Brian Polagye Northwest National Marine Renewable Energy Center University of Washington, Seattle, WA Introduction Reference Model 1 is a tidal turbine operating in a narrow, ...

  13. 12th Annual Wave & Tidal 2015

    Energy.gov [DOE]

    The UK is currently the undisputed global leader in marine energy, with more wave and tidal stream devices installed than the rest of the world combined. This leading position is built on an...

  14. Half Moon Cove Tidal Project. Feasibility report

    SciTech Connect

    Not Available

    1980-11-01

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

  15. Graphite-based photovoltaic cells

    DOEpatents

    Lagally, Max; Liu, Feng

    2010-12-28

    The present invention uses lithographically patterned graphite stacks as the basic building elements of an efficient and economical photovoltaic cell. The basic design of the graphite-based photovoltaic cells includes a plurality of spatially separated graphite stacks, each comprising a plurality of vertically stacked, semiconducting graphene sheets (carbon nanoribbons) bridging electrically conductive contacts.

  16. Photovoltaics: solar electric power systems

    SciTech Connect

    1980-02-01

    The operation and uses of solar cells and the National Photovoltaic Program are briefly described. Eleven DOE photovoltaic application projects are described including forest lookout towers; Wilcox Memorial Hospital in Hawaii; WBNO daytime AM radio station; Schuchuli Indian Village; Meade, Nebraska, agricultural experiment; Mt. Laguna Air Force Station; public schools and colleges; residential applications; and Sea World of Florida. (WHK)

  17. Photovoltaic manufacturing technology

    SciTech Connect

    Wohlgemuth, J.H.; Whitehouse, D.; Wiedeman, S.; Catalano, A.W.; Oswald, R. )

    1991-12-01

    This report identifies steps leading to manufacturing large volumes of low-cost, large-area photovoltaic (PV) modules. Both crystalline silicon and amorphous silicon technologies were studied. Cost reductions for each step were estimated and compared to Solarex Corporation's manufacturing costs. A cost model, a simple version of the SAMICS methodology developed by the Jet Propulsion Laboratory (JPL), projected PV selling prices. Actual costs of materials, labor, product yield, etc., were used in the cost model. The JPL cost model compared potential ways of lowering costs. Solarex identified the most difficult technical challenges that, if overcome, would reduce costs. Preliminary research plans were developed to solve the technical problems. 13 refs.

  18. Thin film photovoltaic device

    DOEpatents

    Catalano, Anthony W.; Bhushan, Manjul

    1982-01-01

    A thin film photovoltaic solar cell which utilizes a zinc phosphide semiconductor is of the homojunction type comprising an n-type conductivity region forming an electrical junction with a p-type region, both regions consisting essentially of the same semiconductor material. The n-type region is formed by treating zinc phosphide with an extrinsic dopant such as magnesium. The semiconductor is formed on a multilayer substrate which acts as an opaque contact. Various transparent contacts may be used, including a thin metal film of the same chemical composition as the n-type dopant or conductive oxides or metal grids.

  19. Bracket for photovoltaic modules

    DOEpatents

    Ciasulli, John; Jones, Jason

    2014-06-24

    Brackets for photovoltaic ("PV") modules are described. In one embodiment, a saddle bracket has a mounting surface to support one or more PV modules over a tube, a gusset coupled to the mounting surface, and a mounting feature coupled to the gusset to couple to the tube. The gusset can have a first leg and a second leg extending at an angle relative to the mounting surface. Saddle brackets can be coupled to a torque tube at predetermined locations. PV modules can be coupled to the saddle brackets. The mounting feature can be coupled to the first gusset and configured to stand the one or more PV modules off the tube.

  20. Thin film photovoltaic device

    DOEpatents

    Catalano, A.W.; Bhushan, M.

    1982-08-03

    A thin film photovoltaic solar cell which utilizes a zinc phosphide semiconductor is of the homojunction type comprising an n-type conductivity region forming an electrical junction with a p-type region, both regions consisting essentially of the same semiconductor material. The n-type region is formed by treating zinc phosphide with an extrinsic dopant such as magnesium. The semiconductor is formed on a multilayer substrate which acts as an opaque contact. Various transparent contacts may be used, including a thin metal film of the same chemical composition as the n-type dopant or conductive oxides or metal grids. 5 figs.

  1. Photovoltaic Degradation Risk: Preprint

    SciTech Connect

    Jordan, D. C.; Kurtz, S. R.

    2012-04-01

    The ability to accurately predict power delivery over the course of time is of vital importance to the growth of the photovoltaic (PV) industry. Important cost drivers include the efficiency with which sunlight is converted into power, how this relationship changes over time, and the uncertainty in this prediction. An accurate quantification of power decline over time, also known as degradation rate, is essential to all stakeholders - utility companies, integrators, investors, and researchers alike. In this paper we use a statistical approach based on historical data to quantify degradation rates, discern trends and quantify risks related to measurement uncertainties, number of measurements and methodologies.

  2. Photovoltaic panel clamp

    DOEpatents

    Mittan, Margaret Birmingham; Miros, Robert H. J.; Brown, Malcolm P.; Stancel, Robert

    2012-06-05

    A photovoltaic panel clamp includes an upper and lower section. The interface between the assembled clamp halves and the module edge is filled by a flexible gasket material, such as EPDM rubber. The gasket preferably has small, finger like protrusions that allow for easy insertion onto the module edge while being reversed makes it more difficult to remove them from the module once installed. The clamp includes mounting posts or an integral axle to engage a bracket. The clamp also may include a locking tongue to secure the clamp to a bracket.

  3. Photovoltaic panel clamp

    DOEpatents

    Brown, Malcolm P.; Mittan, Margaret Birmingham; Miros, Robert H. J.; Stancel, Robert

    2013-03-19

    A photovoltaic panel clamp includes an upper and lower section. The interface between the assembled clamp halves and the module edge is filled by a flexible gasket material, such as EPDM rubber. The gasket preferably has small, finger like protrusions that allow for easy insertion onto the module edge while being reversed makes it more difficult to remove them from the module once installed. The clamp includes mounting posts or an integral axle to engage a bracket. The clamp also may include a locking tongue to secure the clamp to a bracket.

  4. NREL Center for Photovoltaics

    SciTech Connect

    2009-01-01

    Solar cells, also called photovoltaics (PV) by solar cell scientists, convert sunlight directly into electricity. Solar cells are often used to power calculators and watches. The performance of a solar cell is measured in terms of its efficiency at turning sunlight into electricity. Only sunlight of certain energies will work efficiently to create electricity, and much of it is reflected or absorbed by the material that make up the cell. Because of this, a typical commercial solar cell has an efficiency of 15%—about one-sixth of the sunlight striking the cell generates electricity. Low efficiencies mean that larger arrays are needed, and that means higher cost. Improving solar cell efficiencies while holding down the cost per cell is an important goal of the PV industry, researchers at the National Renewable Energy Laboratory (NREL) and other U.S. Department of Energy (DOE) laboratories, and they have made significant progress. The first solar cells, built in the 1950s, had efficiencies of less than 4%. For a text version of this video visit http://www.nrel.gov/learning/re_photovoltaics_video_text.html

  5. NREL Center for Photovoltaics

    ScienceCinema

    None

    2016-07-12

    Solar cells, also called photovoltaics (PV) by solar cell scientists, convert sunlight directly into electricity. Solar cells are often used to power calculators and watches. The performance of a solar cell is measured in terms of its efficiency at turning sunlight into electricity. Only sunlight of certain energies will work efficiently to create electricity, and much of it is reflected or absorbed by the material that make up the cell. Because of this, a typical commercial solar cell has an efficiency of 15%—about one-sixth of the sunlight striking the cell generates electricity. Low efficiencies mean that larger arrays are needed, and that means higher cost. Improving solar cell efficiencies while holding down the cost per cell is an important goal of the PV industry, researchers at the National Renewable Energy Laboratory (NREL) and other U.S. Department of Energy (DOE) laboratories, and they have made significant progress. The first solar cells, built in the 1950s, had efficiencies of less than 4%. For a text version of this video visit http://www.nrel.gov/learning/re_photovoltaics_video_text.html

  6. Photovoltaic Product Directory and Buyers Guide

    SciTech Connect

    Watts, R.L.; Smith, S.A.; Dirks, J.A.; Mazzucchi, R.P.; Lee, V.E.

    1984-04-01

    The directory guide explains photovoltaic systems briefly and shows what products are available off-the-shelf. Information is given to assist in designing a photovoltaic system and on financial incentives. Help is given for determining if photovoltaic products can meet a particular buyer's needs, and information is provided on actual photovoltaic user's experiences. Detailed information is appended on various financial incentives available from state and federal governments, sources of additional information on photovoltaics, sources of various photovoltaic products, and a listing of addresses of photovoltaic products suppliers. (LEW)

  7. Photovoltaic power generation system free of bypass diodes (Patent...

    Office of Scientific and Technical Information (OSTI)

    Photovoltaic power generation system free of bypass diodes Title: Photovoltaic power generation system free of bypass diodes A photovoltaic power generation system that includes a ...

  8. Hot Electron Photovoltaics Using Low Cost Materials and Simple...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Hot Electron Photovoltaics Using Low Cost Materials and Simple Cell Design Lawrence Berkeley National ...

  9. Photovoltaic module with adhesion promoter

    DOEpatents

    Xavier, Grace

    2013-10-08

    Photovoltaic modules with adhesion promoters and methods for fabricating photovoltaic modules with adhesion promoters are described. A photovoltaic module includes a solar cell including a first surface and a second surface, the second surface including a plurality of interspaced back-side contacts. A first glass layer is coupled to the first surface by a first encapsulating layer. A second glass layer is coupled to the second surface by a second encapsulating layer. At least a portion of the second encapsulating layer is bonded directly to the plurality of interspaced back-side contacts by an adhesion promoter.

  10. Plasmonic Backscattering Enhanced Inverted Photovoltaics

    SciTech Connect

    Dissanayake, D. M. N. M.; Roberts, B.; Ku, P.C.

    2011-01-01

    A plasmonic nanoparticle incorporated inverted organic photovoltaic structure was demonstrated where a monolayer of Ag nanoparticles acted as a wavelength selective reflector. Enhanced light harvesting via plasmonic backscattering into the photovoltaic absorber was observed, resulting in a two-fold improvement in the photocurrent and increased open-circuit voltage. Further, utilizing an optical spacer, the plasmonic backscattering was spectrally controlled, thereby modulating the external quantum efficiency and the photocurrent. Unlike a regular thin-film metallic back reflector, excellent off-resonance optical transmission in excess of 80% was observed from the Ag nanoparticles, making this structure highly suitable for semi-transparent and multi-junction photovoltaic applications.

  11. High Performance Photovoltaic Project Overview

    SciTech Connect

    Symko-Davies, M.; McConnell, R.

    2005-01-01

    The High-Performance Photovoltaic (HiPerf PV) Project was initiated by the U.S. Department of Energy to substantially increase the viability of photovoltaics (PV) for cost-competitive applications so that PV can contribute significantly to our energy supply and environment in the 21st century. To accomplish this, the National Center for Photovoltaics (NCPV) directs in-house and subcontracted research in high-performance polycrystalline thin-film and multijunction concentrator devices. In this paper, we describe the recent research accomplishments in the in-house directed efforts and the research efforts under way in the subcontracted area.

  12. TIDAL TURBULENCE SPECTRA FROM A COMPLIANT MOORING

    SciTech Connect

    Thomson, Jim; Kilcher, Levi; Richmond, Marshall C.; Talbert, Joe; deKlerk, Alex; Polagye, Brian; Guerra, Maricarmen; Cienfuegos, Rodrigo

    2013-06-13

    A compliant mooring to collect high frequency turbulence data at a tidal energy site is evaluated in a series of short demon- stration deployments. The Tidal Turbulence Mooring (TTM) improves upon recent bottom-mounted approaches by suspend- ing Acoustic Doppler Velocimeters (ADVs) at mid-water depths (which are more relevant to tidal turbines). The ADV turbulence data are superior to Acoustic Doppler Current Profiler (ADCP) data, but are subject to motion contamination when suspended on a mooring in strong currents. In this demonstration, passive stabilization is shown to be sufficient for acquiring bulk statistics of the turbulence, without motion correction. With motion cor- rection (post-processing), data quality is further improved; the relative merits of direct and spectral motion correction are dis- cussed.

  13. Thin film photovoltaic panel and method

    SciTech Connect

    Ackerman, B.; Albright, S.P.; Jordan, J.F.

    1991-06-11

    This patent describes an improved stability photovoltaic panel. It comprises photovoltaic cells each having polycrystalline thin film layers, each of the thin film layers respectively deposited on a common vitreous substrate for allowing light to pass therethrough to reach a photovoltaic heterojunction formed by at least two of the thin film layers, at least one of the film layers forming the photovoltaic heterojunction for each of the photovoltaic cells, each of the photovoltaic cells lying within a plane substantially parallel to an interior planar surface of the vitreous substrate, each of the photovoltaic cells being connected electrically in series to pass electrical current from the photovoltaic panel, a pliable sheet material backcap opposite the vitreous substrate with respect to the photovoltaic cells and spaced from the photovoltaic cells so as to form a substantially planar spacing between the photovoltaic cells and an interior surface of the sheet material backcap, a perimeter portion of the sheet material backcap having a bend for positioning an edge strip of the sheet material backcap spaced from the interior surface of the backcap to form the planar spacing, the edge strip forming a planar surface parallel with a sealingly engaging the vitreous substrate for forming a fluid-tight seal with the vitreous substrate about the perimeter of the photovoltaic cells for protecting the photovoltaic cells from elements exterior of the photovoltaic panel, and a selected desiccant filling substantially the planar spacing for preventing water vapor within the planar spacing from adversely affecting the photovoltaic cells.

  14. Real-Time Photovoltaic and Solar Resource Testing | Photovoltaic Research |

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL Real-Time Photovoltaic and Solar Resource Testing National Center for Photovoltaics (NCPV) scientists and engineers study long-term performance, reliability, and failures of PV components and systems-both in house and via external collaborations. Through analysis, they quantify long-term degradation and then share the results with the PV community. PV Research Other Reliability & Engineering pages: Accelerated Testing & Analysis Systems Engineering Systems Integration Materials

  15. Photovoltaic cell assembly

    DOEpatents

    Beavis, Leonard C.; Panitz, Janda K. G.; Sharp, Donald J.

    1990-01-01

    A photovoltaic assembly for converting high intensity solar radiation into lectrical energy in which a solar cell is separated from a heat sink by a thin layer of a composite material which has excellent dielectric properties and good thermal conductivity. This composite material is a thin film of porous Al.sub.2 O.sub.3 in which the pores have been substantially filled with an electrophoretically-deposited layer of a styrene-acrylate resin. This composite provides electrical breakdown strengths greater than that of a layer consisting essentially of Al.sub.2 O.sub.3 and has a higher thermal conductivity than a layer of styrene-acrylate alone.

  16. Photovoltaic module mounting system

    DOEpatents

    Miros, Robert H. J.; Mittan, Margaret Birmingham; Seery, Martin N; Holland, Rodney H

    2012-09-18

    A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that grip the edge of the typically glass substrate. The panel mounting clamps are then held in place by tilt brackets and/or mid-link brackets that provide fixation for the clamps and align the solar panels at a tilt to the horizontal mounting surface. The tilt brackets are held in place atop the flexible feet and connected link members thus creating a complete mounting structure.

  17. Photovoltaic module mounting system

    DOEpatents

    Miros, Robert H. J.; Mittan, Margaret Birmingham; Seery, Martin N.; Holland, Rodney H.

    2012-04-17

    A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that grip the edge of the typically glass substrate. The panel mounting clamps are then held in place by tilt brackets and/or mid-link brackets that provide fixation for the clamps and align the solar panels at a tilt to the horizontal mounting surface. The tilt brackets are held in place atop the flexible feet and connected link members thus creating a complete mounting structure.

  18. Photovoltaic solar cell

    SciTech Connect

    Nielson, Gregory N.; Gupta, Vipin P.; Okandan, Murat; Watts, Michael R.

    2015-09-08

    A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.

  19. Photovoltaic solar concentrator

    DOEpatents

    Nielson, Gregory N.; Okandan, Murat; Resnick, Paul J.; Cruz-Campa, Jose Luis

    2012-12-11

    A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.

  20. Photovoltaic solar concentrator

    DOEpatents

    Nielson, Gregory N.; Gupta, Vipin P.; Okandan, Murat; Watts, Michael R.

    2016-03-15

    A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.

  1. Photovoltaic System Performance

    Energy Science and Technology Software Center

    1989-09-25

    PVFORM4.0 is used to design a photovoltaic (PV) system using a set of design parameters which optimize the system's economic potential for the proposed location and the expected operating conditions. PVFORM3.3 has been used to determine PV system size and optimum mounting configuration. The anticipated electrical load determines the system size and the weather and the mounting configuration affect the system output. PVFORM4.0 uses program-supplied default values or their user-supplied equivalents for each of amore » large number of parameters describing the system and time-series data describing the environment to perform a series of hourly calculations to simulate the physical (photovoltaic) performance of a PV system for a one-year period. These iterative calculations sample the performance of the PV system throughout a simulated 365-day year of system operation. Within any simulated day on which system performance is sampled, the calculations are done hourly. The number of days sampled and the interval between them is determined by an input parameter. The results of these calculations are summarized on a monthly basis in output tables and an optional plot file. The program is applicable to grid interactive or stand-alone flat-plate systems. The grid interactive system is assumed to use power purchased from a local utility to supply that portion of the load not met by the simulated PV array. If the array produces more energy than can be consumed by the load, the excess energy is assumed to be sold back to the utility at a constant energy sellback price. If a stand-alone system is being modeled, the program assumes that all energy produced by the simulated PV array is first applied to the external load, and any excess is then used to charge the battery bank. Energy not consumed by the load or the batteries is considered to be wasted.« less

  2. Reference Model #1 - Tidal Energy: Resource Dr. Brian Polagye

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1 is a tidal turbine operating in a narrow, tidal channel. ... Meteorological currents include wave- and wind-induced ... This also reduces ensemble Doppler noise (n ensemble ) by a ...

  3. MHK Technologies/Tidal Sails | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to wires strung across the tidal stream at an angle The sails are driven back and forth by the tidal flow between two stations at one of which the generator is installed...

  4. Photovoltaic as | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    as Jump to: navigation, search Name: Photovoltaic as Place: Zl-n, Czech Republic Zip: 760 01 Product: Czech developer operating a 1.4MW plant in the Czech Republic. Coordinates:...

  5. Denver International Airport Photovoltaic System

    Energy.gov [DOE]

    The Denver International Airport (DIA) features a 2-megawatt (MW) photovoltaic (PV) system. DIA also hosts to a second 1.6-MW system. Denver is a Solar America City.

  6. Rooftop Photovoltaics Market Penetration Scenarios

    SciTech Connect

    Paidipati, J.; Frantzis, L.; Sawyer, H.; Kurrasch, A.

    2008-02-01

    The goal of this study was to model the market penetration of rooftop photovoltaics (PV) in the United States under a variety of scenarios, on a state-by-state basis, from 2007 to 2015.

  7. Salem Electric- Photovoltaic Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Salem Electric offers a rebate to residential customers who install solar photovoltaic (PV) systems. The rebate offered is $600 for the first three kilowatts (kWs) installed and $300/kW for any...

  8. Plug-and-Play Photovoltaics

    Energy.gov [DOE]

    On December 7, 2012, DOE announced $21 million in funding for the Plug-and-Play Photovoltaics funding opportunity. Part of the SunShot Systems Integration efforts, the following projects were...

  9. Solid State Photovoltaic Research Branch

    SciTech Connect

    Not Available

    1990-09-01

    This report summarizes the progress of the Solid State Photovoltaic Research Branch of the Solar Energy Research Institute (SERI) from October 1, 1988, through September 30,l 1989. Six technical sections of the report cover these main areas of SERIs in-house research: Semiconductor Crystal Growth, Amorphous Silicon Research, Polycrystalline Thin Films, III-V High-Efficiency Photovoltaic Cells, Solid-State Theory, and Laser Raman and Luminescence Spectroscopy. Sections have been indexed separately for inclusion on the data base.

  10. UTILITY-SCALE PHOTOVOLTAIC SOLAR | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    UTILITY-SCALE PHOTOVOLTAIC SOLAR UTILITY-SCALE PHOTOVOLTAIC SOLAR SOLAR: UTILITY-SCALE PHOTOVOLTAIC SOLAR POSTER (1.07 MB) More Documents & Publications UTILITY-SCALE PHOTOVOLTAIC SOLAR Download LPO's Illustrated Poster Series ANTELOPE VALLEY SOLAR RANCH MESQUITE

  11. Photovoltaic array mounting apparatus, systems, and methods

    DOEpatents

    West, Jack Raymond; Atchley, Brian; Hudson, Tyrus Hawkes; Johansen, Emil

    2016-01-05

    A photovoltaic array, including: (a) supports laid out on a surface in rows and columns; (b) photovoltaic modules positioned on top of the supports; and (c) fasteners connecting the photovoltaic modules to the supports, wherein the supports have an upper pedestal surface and a lower pedestal surface such that the photovoltaic modules are positioned at a non-horizontal angle when edges of the photovoltaic modules are positioned on top of the upper and lower pedestal surfaces, and wherein a portion of the fasteners rotate to lock the photovoltaic modules onto the supports.

  12. Photovoltaic array mounting apparatus, systems, and methods

    SciTech Connect

    West, Jack Raymond; Atchley, Brian; Hudson, Tyrus Hawkes; Johansen, Emil

    2015-04-14

    A photovoltaic array, including: (a) supports laid out on a surface in rows and columns; (b) photovoltaic modules positioned on top of the supports; and (c) fasteners connecting the photovoltaic modules to the supports, wherein the supports have an upper pedestal surface and a lower pedestal surface such that the photovoltaic modules are positioned at a non-horizontal angle when edges of the photovoltaic modules are positioned on top of the upper and lower pedestal surfaces, and wherein a portion of the fasteners rotate to lock the photovoltaic modules onto the supports.

  13. Green Power Purchasing | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Energy Storage Fuel Cells Geothermal Electric Hydroelectric energy Hydroelectric (Small) Natural Gas Nuclear Solar Photovoltaics Tidal Energy Wave Energy Wind energy Yes Cape Cod...

  14. Equipment Certification Requirements | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Fuel Cells Geothermal Electric Hydroelectric energy Hydroelectric (Small) Natural Gas Nuclear Solar Photovoltaics Tidal Energy Wave Energy Wind energy Yes Madison - Equipment...

  15. Equipment Certification | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Fuel Cells Geothermal Electric Hydroelectric energy Hydroelectric (Small) Natural Gas Nuclear Solar Photovoltaics Tidal Energy Wave Energy Wind energy Yes Madison - Equipment...

  16. NREL Seeks Proposals, Announces Awards for Photovoltaic Technology...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL Seeks Proposals, Announces Awards for Photovoltaic Technology Incubator Program ... PV Technology Incubator Proposals Sought The Photovoltaic (PV) Technology Incubator ...

  17. MANUSCRIPT PREPARATION TEMPLATE FOR THE 35TH IEEE PHOTOVOLTAIC...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    energy produced using rooftop mounted photovoltaic systems has decreased significantly, ... REFERENCES 1 King et al. 2004, Photovoltaic Array Performance Model, ...

  18. PROJECT PROFILE: Degradation Assessment of Fielded CIGS Photovoltaic...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Degradation Assessment of Fielded CIGS Photovoltaic Module Technologies PROJECT PROFILE: Degradation Assessment of Fielded CIGS Photovoltaic Module Technologies Funding ...

  19. Generating Hydrogen through Water Electrolysis using Concentrator Photovoltaics

    SciTech Connect

    McConnell, R.; Thompson, J.

    2005-01-01

    Hydrogen can be an important element in reducing global climate change if the feedstock and process to produce the hydrogen are carbon free. Using nuclear energy to power a high temperature water electrolysis process meets these constraints while another uses heat and electricity from solar electric concentrators. Nuclear researchers have estimated the cost of hydrogen generated in this fashion and we will compare their estimates with those we have made for generating hydrogen using electricity and waste heat from a dish concentrator photovoltaic system. The conclusion is that the costs are comparable and low enough to compete with gasoline costs in the not too distant future.

  20. Photovoltaic Systems Evaluation Laboratory (PSEL)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy Nuclear Energy Safety Technologies Facilities Battery Abuse Testing Laboratory Cylindrical Boiling Facility ...

  1. Photovoltaics for municipal planners

    SciTech Connect

    Not Available

    1993-04-01

    This booklet is intended for city and county government personnel, as well as community organizations, who deal with supplying, regulating, or recommending electric power resources. Specifically, this document deals with photovoltaic (PV) power, or power from solar cells, which is currently the most cost-effective energy source for electricity requirements that are relatively small, located in isolated areas, or difficult to serve with conventional technology. Recently, PV has been documented to be more cost-effective than conventional alternatives (such as line extensions or engine generators) in dozens of applications within the service territories of electric, gas, and communications utilities. Here, we document numerous cost-effective urban applications, chosen by planners and utilities because they were the most cost-effective option or because they were appropriate for environmental or logistical reasons. These applications occur within various municipal departments, including utility, parks and recreation, traffic engineering, transportation, and planning, and they include lighting applications, communications equipment, corrosion protection, irrigation control equipment, remote monitoring, and even portable power supplies for emergency situations.

  2. Photovoltaic Incentive Design Handbook

    SciTech Connect

    Hoff, T. E.

    2006-12-01

    Investments in customer-owned grid-connected photovoltaic (PV) energy systems are growing at a steady pace. This is due, in part, to the availability of attractive economic incentives offered by public state agencies and utilities. In the United States, these incentives have largely been upfront lump payments tied to the system capacity rating. While capacity-based ''buydowns'' have stimulated the domestic PV market, they have been criticized for subsidizing systems with potentially poor energy performance. As a result, the industry has been forced to consider alternative incentive structures, particularly ones that pay based on long-term measured performance. The industry, however, lacks consensus in the debate over the tradeoffs between upfront incentive payments versus longer-term payments for energy delivery. This handbook is designed for agencies and utilities that offer or intend to offer incentive programs for customer-owned PV systems. Its purpose is to help select, design, and implement incentive programs that best meet programmatic goals. The handbook begins with a discussion of the various available incentive structures and then provides qualitative and quantitative tools necessary to design the most appropriate incentive structure. It concludes with program administration considerations.

  3. Mounting support for a photovoltaic module

    DOEpatents

    Brandt, Gregory Michael; Barsun, Stephan K.; Coleman, Nathaniel T.; Zhou, Yin

    2013-03-26

    A mounting support for a photovoltaic module is described. The mounting support includes a foundation having an integrated wire-way ledge portion. A photovoltaic module support mechanism is coupled with the foundation.

  4. Thin film photovoltaic panel and method

    DOEpatents

    Ackerman, Bruce; Albright, Scot P.; Jordan, John F.

    1991-06-11

    A thin film photovoltaic panel includes a backcap for protecting the active components of the photovoltaic cells from adverse environmental elements. A spacing between the backcap and a top electrode layer is preferably filled with a desiccant to further reduce water vapor contamination of the environment surrounding the photovoltaic cells. The contamination of the spacing between the backcap and the cells may be further reduced by passing a selected gas through the spacing subsequent to sealing the backcap to the base of the photovoltaic panels, and once purged this spacing may be filled with an inert gas. The techniques of the present invention are preferably applied to thin film photovoltaic panels each formed from a plurality of photovoltaic cells arranged on a vitreous substrate. The stability of photovoltaic conversion efficiency remains relatively high during the life of the photovoltaic panel, and the cost of manufacturing highly efficient panels with such improved stability is significantly reduced.

  5. Solar Leasing for Residential Photovoltaic Systems (Revised)...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    programs have begun to lower their rebates for small photovoltaic systems (<10 kW). ... Solar Leasing for Residential Photovoltaic Systems 1 Although the high up-front cost of PV ...

  6. Polar Photovoltaics Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Polar Photovoltaics Co Ltd Jump to: navigation, search Name: Polar Photovoltaics Co Ltd Place: Bengbu, Anhui Province, China Zip: 233030 Product: A Chinese a-Si thin film PV cell...

  7. Canrom Photovoltaics Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Canrom Photovoltaics Inc Jump to: navigation, search Name: Canrom Photovoltaics Inc Place: Niagara Falls, New York Zip: 14305 Sector: Solar Product: Developer of a thin-film CdTe...

  8. Photovoltaic Cell Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cell Basics Photovoltaic Cell Basics August 16, 2013 - 4:53pm Addthis Photovoltaic (PV) cells, or solar cells, take advantage of the photoelectric effect to produce electricity. PV ...

  9. Concentrator Photovoltaic System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Concentrator Photovoltaic System Basics August 20, 2013 - 4:12pm Addthis Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the ...

  10. Photovoltaic Reliability and Engineering (Revised) (Fact Sheet)

    SciTech Connect

    Not Available

    2011-06-01

    Capabilities fact sheet for the National Center for Photovoltaics: Photovoltaic Reliability and Engineering. One-sided sheet that includes Scope, Core Competencies and Capabilities, and Contact/Web information.

  11. ULTRA BARRIER TOPSHEET (UBT) FOR FLEXIBLE PHOTOVOLTAICS

    SciTech Connect

    DeScioli, Derek

    2013-06-01

    This slide-show presents 3M photovoltaic-related products, particularly flexible components. Emphasis is on the 3M Ultra Barrier Solar Films. Topics covered include reliability and qualification testing and flexible photovoltaic encapsulation costs.

  12. Plug-and-Play Photovoltaics Funding Opportunity

    Energy.gov [DOE]

    Through the Plug-and-Play Photovoltaics program, DOE will advance the development of a commercial plug-and-play photovoltaic (PV) system, an off-the-shelf product that is fully inclusive with...

  13. Photovoltaic product directory and buyers guide

    SciTech Connect

    Watts, R.L.; Smith, S.A.; Mazzucchi, R.P.

    1981-06-01

    Basic information on photovoltaic conversion technology is provided for those unfamiliar with the field. Various types of photovoltaic products and systems currently available off-the-shelf are described. These include products without batteries, battery chargers, power packages, home electric systems, and partial systems. Procedures are given for designing a photovoltaic system from scratch. A few custom photovoltaic systems are described, and a list is compiled of photovoltaic firms which can provide custom systems. Guidance is offered for deciding whether or not to use photovoltaic products. A variety of installations are described and their performance is appraised by the owners. Information is given on various financial incentives available from state and federal governments. Sources of additional information on photovoltaics are listed. A matrix is provided indicating the sources of various types of photovoltaic products. The addresses of suppliers are listed. (LEW)

  14. Process Development for Nanostructured Photovoltaics

    SciTech Connect

    Elam, Jeffrey W.

    2015-01-01

    Photovoltaic manufacturing is an emerging industry that promises a carbon-free, nearly limitless source of energy for our nation. However, the high-temperature manufacturing processes used for conventional silicon-based photovoltaics are extremely energy-intensive and expensive. This high cost imposes a critical barrier to the widespread implementation of photovoltaic technology. Argonne National Laboratory and its partners recently invented new methods for manufacturing nanostructured photovoltaic devices that allow dramatic savings in materials, process energy, and cost. These methods are based on atomic layer deposition, a thin film synthesis technique that has been commercialized for the mass production of semiconductor microelectronics. The goal of this project was to develop these low-cost fabrication methods for the high efficiency production of nanostructured photovoltaics, and to demonstrate these methods in solar cell manufacturing. We achieved this goal in two ways: 1) we demonstrated the benefits of these coatings in the laboratory by scaling-up the fabrication of low-cost dye sensitized solar cells; 2) we used our coating technology to reduce the manufacturing cost of solar cells under development by our industrial partners.

  15. Solar Energy-- Photovoltaic Design Assistance Center

    SciTech Connect

    1995-12-31

    This small booklet tells the profile, mission, operations, services, and data base of Sandia National Laboratories Photovoltaic Design Assistance Center

  16. Recording of SERC Monitoring Technologies - Solar Photovoltaics |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Recording of SERC Monitoring Technologies - Solar Photovoltaics Recording of SERC Monitoring Technologies - Solar Photovoltaics This document provides a transcript of the of SERC Monitoring Technologies - Solar Photovoltaics webinar, presented on 10/20/2011 by Peter McNutt. serc_webinar_20111020_solar_pv_transcipt.pdf (150.41 KB) More Documents & Publications Sustainable Energy Resources for Consumers (SERC) - Solar Hot Water SERC Photovoltaics for Residential

  17. Thin Film Photovoltaic Partnership Project | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Thin Film Photovoltaic Partnership Project NREL's Thin Film Photovoltaic (PV) Partnership Project led R&D on emerging thin-film solar technologies in the United States from 1994 to 2009. The project made many advances in thin-film PV technologies that allowed the United States to attain world leadership in this area of solar technology. Three national R&D teams focused on thin-film semiconductor materials: amorphous silicon (a-Si), cadmium telluride (CdTe), and copper indium gallium

  18. OPTICAL DISCOVERY OF PROBABLE STELLAR TIDAL DISRUPTION FLARES

    SciTech Connect

    Van Velzen, Sjoert; Farrar, Glennys R.; Gezari, Suvi; Morrell, Nidia; Zaritsky, Dennis; Oestman, Linda; Smith, Mathew; Gelfand, Joseph; Drake, Andrew J.

    2011-11-10

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

  19. Solar Photovoltaic SPECIFICATION, CHECKLIST AND GUIDE

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Photovoltaic SPECIFICATION, CHECKLIST AND GUIDE Renewable Energy Ready Home Renewable Energy Ready Home SOLAR PHOTOVOLTAIC SPECIFICATION, CHECKLIST AND GUIDE i Table of Contents About the Renewable Energy Ready Home Specifications Assumptions of the RERH Solar Photovoltaic Specification .............................................................................. 1 Builder and Specification Limitations

  20. International photovoltaic products and manufacturers directory, 1995

    SciTech Connect

    Shepperd, L.W.

    1995-11-01

    This international directory of more than 500 photovoltaic-related manufacturers is intended to guide potential users of photovoltaics to sources for systems and their components. Two indexes help the user to locate firms and materials. A glossary describes equipment and terminology commonly used in the photovoltaic industry.

  1. Cadmium telluride photovoltaic radiation detector

    DOEpatents

    Agouridis, Dimitrios C.; Fox, Richard J.

    1981-01-01

    A dosimetry-type radiation detector is provided which employs a polycrystalline, chlorine-compensated cadmium telluride wafer fabricated to operate as a photovoltaic current generator used as the basic detecting element. A photovoltaic junction is formed in the wafer by painting one face of the cadmium telluride wafer with an n-type semiconductive material. The opposite face of the wafer is painted with an electrically conductive material to serve as a current collector. The detector is mounted in a hermetically sealed vacuum containment. The detector is operated in a photovoltaic mode (zero bias) while DC coupled to a symmetrical differential current amplifier having a very low input impedance. The amplifier converts the current signal generated by radiation impinging upon the barrier surface face of the wafer to a voltage which is supplied to a voltmeter calibrated to read quantitatively the level of radiation incident upon the detecting wafer.

  2. Cadmium telluride photovoltaic radiation detector

    DOEpatents

    Agouridis, D.C.; Fox, R.J.

    A dosimetry-type radiation detector is provided which employs a polycrystalline, chlorine-compensated cadmium telluride wafer fabricated to operate as a photovoltaic current generator used as the basic detecting element. A photovoltaic junction is formed in the wafer by painting one face of the cadmium telluride wafer with an n-type semi-conductive material. The opposite face of the wafer is painted with an electrically conductive material to serve as a current collector. The detector is mounted in a hermetically sealed vacuum containment. The detector is operated in a photovoltaic mode (zero bias) while DC coupled to a symmetrical differential current amplifier having a very low input impedance. The amplifier converts the current signal generated by radiation impinging upon the barrier surface face of the wafer to a voltage which is supplied to a voltmeter calibrated to read quantitatively the level of radiation incident upon the detecting wafer.

  3. Photovoltaic Subcontract Program, FY 1991

    SciTech Connect

    Not Available

    1992-03-01

    This report summarizes the fiscal year (FY) 1991 (October 1, 1990, through September 30, 1991) progress of the subcontracted photovoltaic (PV) research and development (R D) performed under the Photovoltaic Advanced Research and Development Project at the National Renewable Energy Laboratory (NREL) -- formerly the Solar Energy Research Institute (SERI). The mission of the national PV program is to develop PV technology for large-scale generation of economically competitive electric power in the United States. The technical sections of the report cover the main areas of the subcontract program: the Amorphous Silicon Research Project, Polycrystalline Thin Films, Crystalline Silicon Materials Research, High-Efficiency Concepts, the New Ideas Program, the University Participation Program, and the Photovoltaic Manufacturing Technology (PVMaT) project. Technical summaries of each of the subcontracted programs provide a discussion of approaches, major accomplishments in FY 1991, and future research directions.

  4. Photovoltaic hydrogen production

    SciTech Connect

    Hiser, H.W.; Memory, S.B.; Veziroglu, T.N.; Padin, J.

    1996-10-01

    This is a new project, which started in June 1995, and involves photovoltaic hydrogen production as a fuel production method for the future. In order to increase the hydrogen yield, it was decided to use hybrid solar collectors to generate D.C. electricity, as well as high temperature steam for input to the electrolyzer. In this way, some of the energy needed to dissociate the water is supplied in the form of heat (or low grade energy), to generate steam, which results in a reduction of electrical energy (or high grade energy) needed. As a result, solar to hydrogen conversion efficiency is increased. In the above stated system, the collector location, the collector tracking sub-system (i.e., orientation/rotation), and the steam temperature have been taken as variables. Five locations selected - in order to consider a variety of latitudes, altitudes, cloud coverage and atmospheric conditions - are Atlanta, Denver, Miami, Phoenix and Salt Lake City. Plain PV and hybrid solar collectors for a stationary south facing system and five different collector rotation systems have been analyzed. Steam temperatures have been varied between 200{degrees}C and 1200{degrees}C. During the first year, solar to hydrogen conversion efficiencies have been considered. The results show that higher steam temperatures, 2 dimensional tracking system, higher elevations and dryer climates causes higher conversion efficiencies. Cost effectiveness of the sub-systems and of the overall system will be analyzed during the second year. Also, initial studies will be made of an advanced high efficiency hybrid solar hydrogen production system.

  5. Interband Cascade Photovoltaic Cells

    SciTech Connect

    Yang, Rui Q.; Santos, Michael B.; Johnson, Matthew B.

    2014-09-24

    In this project, we are performing basic and applied research to systematically investigate our newly proposed interband cascade (IC) photovoltaic (PV) cells [1]. These cells follow from the great success of infrared IC lasers [2-3] that pioneered the use of quantum-engineered IC structures. This quantum-engineered approach will enable PV cells to efficiently convert infrared radiation from the sun or other heat source, to electricity. Such cells will have important applications for more efficient use of solar energy, waste-heat recovery, and power beaming in combination with mid-infrared lasers. The objectives of our investigations are to: achieve extensive understanding of the fundamental aspects of the proposed PV structures, develop the necessary knowledge for making such IC PV cells, and demonstrate prototype working PV cells. This research will focus on IC PV structures and their segments for utilizing infrared radiation with wavelengths from 2 to 5 ÎĽm, a range well suited for emission by heat sources (1,000-2,000 K) that are widely available from combustion systems. The long-term goal of this project is to push PV technology to longer wavelengths, allowing for relatively low-temperature thermal sources. Our investigations address material quality, electrical and optical properties, and their interplay for the different regions of an IC PV structure. The tasks involve: design, modeling and optimization of IC PV structures, molecular beam epitaxial growth of PV structures and relevant segments, material characterization, prototype device fabrication and testing. At the end of this program, we expect to generate new cutting-edge knowledge in the design and understanding of quantum-engineered semiconductor structures, and demonstrate the concepts for IC PV devices with high conversion efficiencies.

  6. Tidal heating in multilayered terrestrial exoplanets

    SciTech Connect

    Henning, Wade G.; Hurford, Terry

    2014-07-01

    The internal pattern and overall magnitude of tidal heating for spin-synchronous terrestrial exoplanets from 1 to 2.5 R{sub E} is investigated using a propagator matrix method for a variety of layer structures. Particular attention is paid to ice-silicate hybrid super-Earths, where a significant ice mantle is modeled to rest atop an iron-silicate core, and may or may not contain a liquid water ocean. We find multilayer modeling often increases tidal dissipation relative to a homogeneous model, across multiple orbital periods, due to the ability to include smaller volume low viscosity regions, and the added flexure allowed by liquid layers. Gradations in parameters with depth are explored, such as allowed by the Preliminary Earth Reference Model. For ice-silicate hybrid worlds, dramatically greater dissipation is possible beyond the case of a silicate mantle only, allowing non-negligible tidal activity to extend to greater orbital periods than previously predicted. Surface patterns of tidal heating are found to potentially be useful for distinguishing internal structure. The influence of ice mantle depth and water ocean size and position are shown for a range of forcing frequencies. Rates of orbital circularization are found to be 10-100 times faster than standard predictions for Earth-analog planets when interiors are moderately warmer than the modern Earth, as well as for a diverse range of ice-silicate hybrid super-Earths. Circularization rates are shown to be significantly longer for planets with layers equivalent to an ocean-free modern Earth, as well as for planets with high fractions of either ice or silicate melting.

  7. Recycling Of Cis Photovoltaic Waste

    DOEpatents

    Drinkard, Jr., William F.; Long, Mark O.; Goozner; Robert E.

    1998-07-14

    A method for extracting and reclaiming metals from scrap CIS photovoltaic cells and associated photovoltaic manufacturing waste by leaching the waste with dilute nitric acid, skimming any plastic material from the top of the leaching solution, separating glass substrate from the leachate, electrolyzing the leachate to plate a copper and selenium metal mixture onto a first cathode, replacing the cathode with a second cathode, re-electrolyzing the leachate to plate cadmium onto the second cathode, separating the copper from selenium, and evaporating the depleted leachate to yield a zinc and indium containing solid.

  8. Aternating current photovoltaic building block

    DOEpatents

    Bower, Ward Issac; Thomas, Michael G.; Ruby, Douglas S.

    2004-06-15

    A modular apparatus for and method of alternating current photovoltaic power generation comprising via a photovoltaic module, generating power in the form of direct current; and converting direct current to alternating current and exporting power via one or more power conversion and transfer units attached to the module, each unit comprising a unitary housing extending a length or width of the module, which housing comprises: contact means for receiving direct current from the module; one or more direct current-to-alternating current inverters; an alternating current bus; and contact means for receiving alternating current from the one or more inverters.

  9. Photovoltaic cell and production thereof

    DOEpatents

    Narayanan, Srinivasamohan; Kumar, Bikash

    2008-07-22

    An efficient photovoltaic cell, and its process of manufacture, is disclosed wherein the back surface p-n junction is removed from a doped substrate having an oppositely doped emitter layer. A front surface and edges and optionally the back surface periphery are masked and a back surface etch is performed. The mask is not removed and acts as an anti-reflective coating, a passivating agent, or both. The photovoltaic cell retains an untextured back surface whether or not the front is textured and the dopant layer on the back surface is removed to enhance the cell efficiency. Optionally, a back surface field is formed.

  10. Photovoltaic water pumping for Bolivia

    SciTech Connect

    Post, H.N.; Garvison, P.

    1987-01-01

    This paper describes the design, installation and performance of photovoltaically-powered water pumping systems which provide potable water to residents of three villages in the Altiplano region of Bolivia. The installation of these systems during August 1986 was the culmination of a cooperative effort between The World Bank, US Department of Energy and the Bolivian government. This project was configured to demonstrate, through pilot systems, the many potential benefits of using photovoltaic water pumping in developing countries. The lessons learned through the procurement and installation of these systems are discussed and the resulting benefits of the project to international lending institutions, US industry, and the Bolivian participants are examined.

  11. Basic photovoltaic principles and methods

    SciTech Connect

    Hersch, P.; Zweibel, K.

    1982-02-01

    This book presents a nonmathematical explanation of the theory and design of photovoltaic (PV) solar cells and systems. The basic elements of PV are introduced: the photovoltaic effect, physical aspects of solar cell efficiency, the typical single-crystal silicon solar cell, advances in single-crystal silicon solar cells. This is followed by the designs of systems constructed from individual cells, including possible constructions for putting cells together and the equipment needed for a practical producer of electrical energy. The future of PV is then discussed. (LEW)

  12. Micro-Sized Photovoltaic Cells

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features Greg Nielson, a project leader at Sandia National Laboratoies. He holds a solar cell test prototype with a microscale lens array fastened above it. Together, the cell and lens help create a concentrated photovoltaic unit. The tiny cells could turn a person into a walking solar battery charger if they were fastened to flexible substrates molded around unusual shapes, such as clothing. The solar particles, fabricated of crystalline silicon, hold the potential for a variety of new applications. They are expected eventually to be less expensive and have greater efficiencies than current photovoltaic collectors that are pieced together with 6-inch- square solar wafers.

  13. Rapid screening buffer layers in photovoltaics

    SciTech Connect

    List, III, Frederick Alyious; Tuncer, Enis

    2014-09-09

    An apparatus and method of testing electrical impedance of a multiplicity of regions of a photovoltaic surface includes providing a multi-tipped impedance sensor with a multiplicity of spaced apart impedance probes separated by an insulating material, wherein each impedance probe includes a first end adapted for contact with a photovoltaic surface and a second end in operable communication with an impedance measuring device. The multi-tipped impedance sensor is used to contact the photovoltaic surface and electrical impedance of the photovoltaic material is measured between individual first ends of the probes to characterize the quality of the photovoltaic surface.

  14. Electrochemical photovoltaic cells and electrodes

    DOEpatents

    Skotheim, Terje A.

    1984-01-01

    Improved electrochemical photovoltaic cells and electrodes for use therein, particularly electrodes employing amorphous silicon or polyacetylene coating are produced by a process which includes filling pinholes or porous openings in the coatings by electrochemical oxidation of selected monomers to deposit insulating polymer in the openings.

  15. Improved photovoltaic cells and electrodes

    DOEpatents

    Skotheim, T.A.

    1983-06-29

    Improved photovoltaic cells and electrodes for use therein, particularly electrodes employing amorphous silicon or polyacetylene coating are produced by a process which includes filling pinholes or porous openings in the coatings by electrochemical oxidation of selected monomers to deposit insulating polymer in the openings.

  16. Photovoltaic cells employing zinc phosphide

    DOEpatents

    Barnett, Allen M.; Catalano, Anthony W.; Dalal, Vikram L.; Masi, James V.; Meakin, John D.; Hall, Robert B.

    1984-01-01

    A photovoltaic cell having a zinc phosphide absorber. The zinc phosphide can be a single or multiple crystal slice or a thin polycrystalline film. The cell can be a Schottky barrier, heterojunction or homojunction device. Methods for synthesizing and crystallizing zinc phosphide are disclosed as well as a method for forming thin films.

  17. NREL Photovoltaic Program FY 1993

    SciTech Connect

    Not Available

    1994-08-01

    This report reviews the in-house and subcontracted research and development (R&D) activities under the National Renewable Energy Laboratory (NREL) Photovoltaic (PV) Program from October 1, 1992, through September 30, 1993 (fiscal year [FY] 1993). The NREL PV Program is part of the U.S. Department of Energy`s (DOE`s) National Photovoltaics Program, as described in the DOE Photovoltaics Program Plan, FY 1991 - FY 1995. The FY 1993 budget authority (BA) for carrying out the NREL PV Program was $40.1 million in operating funds and $0.9 million in capital equipment funds. An additional $4.8 million in capital equipment funds were made available for the new Solar Energy Research Facility (SERF) that will house the in-house PV laboratories beginning in FY 1994. Subcontract activities represent a major part of the NREL PV Program, with more than $23.7 million (nearly 59%) of the FY 1993 operating funds going to 70 subcontractors. In FY 1993, DOE assigned certain other PV subcontracting efforts to the DOE Golden Field Office (DOE/GO), and assigned responsibility for their technical support to the NREL PV Program. An example is the PV:BONUS (Building Opportunities in the U.S. for Photovoltaics) Project. These DOE/GO efforts are also reported in this document.

  18. Photovoltaic Subcontract Program, FY 1990

    SciTech Connect

    Summers, K.A.

    1991-03-01

    This report summarizes the progress of the subcontracted photovoltaic (PV) research and development (R D) performed under the Photovoltaics Program at the Solar Energy Research Institute (SERI). The SERI subcontracted PV research and development represents most of the subcontracted R D that is funded by the US Department of Energy (DOE) National Photovoltaics Program. This report covers fiscal year (FY) 1990: October 1, 1989 through September 30, 1990. During FY 1990, the SERI PV program started to implement a new DOE subcontract initiative, entitled the Photovoltaic Manufacturing Technology (PVMaT) Project.'' Excluding (PVMaT) because it was in a start-up phase, in FY 1990 there were 54 subcontracts with a total annualized funding of approximately $11.9 million. Approximately two-thirds of those subcontracts were with universities, at a total funding of over $3.3 million. Cost sharing by industry added another $4.3 million to that $11.9 million of SERI PV subcontracted R D. The six technical sections of this report cover the previously ongoing areas of the subcontracted program: the Amorphous Silicon Research Project, Polycrystalline Thin Films, Crystalline Silicon Materials Research, High-Efficiency Concepts, the New Ideas Program, and the University Participation Program. Technical summaries of each of the subcontracted programs discuss approaches, major accomplishments in FY 1990, and future research directions. Another section introduces the PVMaT project and reports the progress since its inception in FY 1990. Highlights of technology transfer activities are also reported.

  19. Breakthrough: micro-electronic photovoltaics

    ScienceCinema

    Okandan, Murat; Gupta, Vipin

    2016-07-12

    Sandia developed tiny glitter-sized photovoltaic (PV) cells that could revolutionize solar energy collection. The crystalline silicon micro-PV cells will be cheaper and have greater efficiencies than current PV collectors. Micro-PV cells require relatively little material to form well-controlled, highly efficient devices. Cell fabrication uses common microelectric and micro-electromechanical systems (MEMS) techniques.

  20. SAM Photovoltaic Model Technical Reference

    SciTech Connect

    Gilman, P.

    2015-05-27

    This manual describes the photovoltaic performance model in the System Advisor Model (SAM). The U.S. Department of Energy’s National Renewable Energy Laboratory maintains and distributes SAM, which is available as a free download from https://sam.nrel.gov. These descriptions are based on SAM 2015.1.30 (SSC 41).

  1. MHK Projects/Astoria Tidal Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Astoria Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMA...

  2. MHK Projects/Cape Islands Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Islands Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type"...

  3. MHK Projects/Town of Wiscasset Tidal Resources | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Town of Wiscasset Tidal Resources < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","...

  4. MHK Projects/Indian River Tidal Hydrokinetic Energy Project ...

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Hydrokinetic Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","...

  5. MHK Projects/Angoon Tidal Energy Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Angoon Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"R...

  6. MHK Projects/Kendall Head Tidal Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Kendall Head Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"R...

  7. MHK Projects/Kingsbridge Tidal Energy Project | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Kingsbridge Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","t...

  8. MHK Projects/Roosevelt Island Tidal Energy RITE | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Roosevelt Island Tidal Energy RITE < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3",...

  9. MHK Projects/Kachemak Bay Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Kachemak Bay Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","...

  10. MHK Projects/Pennamaquan Tidal Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Phase Phase ? PermitLicense Buildout (MW) 21 Main Overseeing Organization Pennamaquan Tidal Power LLC Project Licensing FERC License Docket Number P-13884 Environmental...

  11. MHK Projects/Central Cook Inlet Alaska Tidal Energy Project ...

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMA...

  12. MHK Projects/Portsmouth Area Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Portsmouth Area Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3...

  13. MHK Projects/Deception Pass Tidal Energy Hydroelectric Project...

    OpenEI (Open Energy Information) [EERE & EIA]

    Deception Pass Tidal Energy Hydroelectric Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice"...

  14. MHK Projects/Edgar Town Nantucket Tidal Energy | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Town Nantucket Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":...

  15. MHK Projects/Housatonic Tidal Energy Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Housatonic Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type...

  16. MHK Projects/East Foreland Tidal Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    East Foreland Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"...

  17. MHK Projects/Turnagain Arm Tidal | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Turnagain Arm Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP...

  18. MHK Projects/Cuttyhunk Tidal Energy Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cuttyhunk Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type"...

  19. MHK Projects/Spieden Channel Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Spieden Channel Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3...

  20. MHK Projects/Muskeget Channel Tidal Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Muskeget Channel Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type...

  1. MHK Projects/Nantucket Tidal Energy Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Nantucket Tidal Energy Plant < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type"...

  2. MHK Projects/Avalon Tidal | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Avalon Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom...

  3. MHK Projects/Piscataqua Tidal Hydrokinetic Energy Project | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Piscataqua Tidal Hydrokinetic Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"goo...

  4. MHK Projects/Highlands Tidal Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMA...

  5. MHK Projects/Penobscot Tidal Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Penobscot Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","typ...

  6. MHK Projects/Treat Island Tidal | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Treat Island Tidal < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP"...

  7. MHK Projects/Cook Inlet Tidal Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cook Inlet Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROA...

  8. MHK Projects/Paimpol Brehat tidal farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Paimpol Brehat tidal farm < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"R...

  9. MHK Projects/Guemes Channel Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Guemes Channel Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3"...

  10. MHK Technologies/Tidal Barrage | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Barrage.jpg Technology Profile Technology Type Click here Cross Flow Turbine...

  11. MHK Projects/Tacoma Narrows Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Tacoma Narrows Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3"...

  12. MHK Technologies/TidalStar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search << Return to the MHK database homepage TidalStar.jpg Technology Profile Primary Organization Bourne Energy Technology Type Click here Axial Flow Turbine...

  13. MHK Technologies/KESC Tidal Generator | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technology Resource Click here CurrentTidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery Concept Definition Early...

  14. MHK Technologies/Tidal Turbine | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Turbine.jpg Technology Profile Primary Organization Aquascientific Project(s)...

  15. MHK Technologies/Tidal Stream Turbine | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Stream Turbine.jpg Technology Profile Primary Organization StatoilHydro co owned...

  16. Earth Tidal Analysis At Raft River Geothermal Area (1984) | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At Raft River Geothermal Area (1984) Exploration Activity Details Location Raft River...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At Raft River Geothermal Area (1982) Exploration Activity Details Location Raft River...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At Raft River Geothermal Area (1980) Exploration Activity Details Location Raft River...

  19. MHK Projects/Clarence Strait Tidal Energy Project | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Project Country Australia Project Resource Click here Current Tidal Project Nearest Body of Water Clarence Strait Coordinates -12.083533792616, 131.04972839355 Project...

  20. MHK Technologies/Tidal Stream | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Click here TRL 1-3: Discovery Concept Definition Early Stage Development & Design & Engineering Technology Description The TidalStream SST (Semi-Submersible Turbine) is...

  1. MHK Projects/Tidal Energy Project Portugal | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Organization Tidal Energy Pty Ltd Project Technology *MHK TechnologiesDavidson Hill Venturi DHV Turbine Project Licensing Environmental Monitoring and Mitigation Efforts See...

  2. MHK Projects/Seaflow Tidal Energy System | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    been operating the Seaflow Tidal Energy System project since May 2003. This was an experimental test rig - the successor, SeaGen is intended for commercial applications Project...

  3. Photovoltaic power generation system free of bypass diodes

    SciTech Connect

    Lentine, Anthony L.; Okandan, Murat; Nielson, Gregory N.

    2015-07-28

    A photovoltaic power generation system that includes a solar panel that is free of bypass diodes is described herein. The solar panel includes a plurality of photovoltaic sub-modules, wherein at least two of photovoltaic sub-modules in the plurality of photovoltaic sub-modules are electrically connected in parallel. A photovoltaic sub-module includes a plurality of groups of electrically connected photovoltaic cells, wherein at least two of the groups are electrically connected in series. A photovoltaic group includes a plurality of strings of photovoltaic cells, wherein a string of photovoltaic cells comprises a plurality of photovoltaic cells electrically connected in series. The strings of photovoltaic cells are electrically connected in parallel, and the photovoltaic cells are microsystem-enabled photovoltaic cells.

  4. US photovoltaic patents: 1991--1993

    SciTech Connect

    Pohle, L

    1995-03-01

    This document contains US patents on terrestrial photovoltaic (PV) power applications, including systems, components, and materials as well as manufacturing and support functions. The patent entries in this document were issued from 1991 to 1993. The entries were located by searching USPA, the database of the US Patent Office. The final search retrieved all patents under the class ``Batteries, Thermoelectric and Photoelectric`` and the subclasses ``Photoelectric,`` ``Testing,`` and ``Applications.`` The search also located patents that contained the words ``photovoltaic(s)`` or ``solar cell(s)`` and their derivatives. After the initial list was compiled, most of the patents on the following subjects were excluded: space photovoltaic technology, use of the photovoltaic effect for detectors, and subjects only peripherally concerned with photovoltaic. Some patents on these three subjects were included when ft appeared that those inventions might be of use in terrestrial PV power technologies.

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Interactive Map Reveals U.S. Tidal Energy Resources New Interactive Map Reveals U.S. Tidal Energy Resources July 7, 2011 - 10:50am Addthis A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams | Source: Georgia Institute of Technology A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams | Source: Georgia Institute of Technology Michael Reed Michael Reed Director, Technical and

  6. High voltage photovoltaic power converter

    DOEpatents

    Haigh, Ronald E.; Wojtczuk, Steve; Jacobson, Gerard F.; Hagans, Karla G.

    2001-01-01

    An array of independently connected photovoltaic cells on a semi-insulating substrate contains reflective coatings between the cells to enhance efficiency. A uniform, flat top laser beam profile is illuminated upon the array to produce electrical current having high voltage. An essentially wireless system includes a laser energy source being fed through optic fiber and cast upon the photovoltaic cell array to prevent stray electrical signals prior to use of the current from the array. Direct bandgap, single crystal semiconductor materials, such as GaAs, are commonly used in the array. Useful applications of the system include locations where high voltages are provided to confined spaces such as in explosive detonation, accelerators, photo cathodes and medical appliances.

  7. Photovoltaic performance and reliability workshop

    SciTech Connect

    Mrig, L.

    1993-12-01

    This workshop was the sixth in a series of workshops sponsored by NREL/DOE under the general subject of photovoltaic testing and reliability during the period 1986--1993. PV performance and PV reliability are at least as important as PV cost, if not more. In the US, PV manufacturers, DOE laboratories, electric utilities, and others are engaged in the photovoltaic reliability research and testing. This group of researchers and others interested in the field were brought together to exchange the technical knowledge and field experience as related to current information in this evolving field of PV reliability. The papers presented here reflect this effort since the last workshop held in September, 1992. The topics covered include: cell and module characterization, module and system testing, durability and reliability, system field experience, and standards and codes.

  8. Systems Engineering | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Engineering We provide engineering testing and evaluation of photovoltaic (PV) products developed by companies during work sponsored by the U.S. Department of Energy (DOE). We determine if products meet performance criteria established by DOE for a company's contractual obligations. PV Research Other Reliability & Engineering pages: Real-Time PV & Solar Resource Testing Accelerated Testing & Analysis Systems Integration Materials Science Chemistry & Nanoscience National Center

  9. Systems Integration | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Integration The National Center for Photovoltaics (NCPV) at NREL provides grid integration support, system-level testing, and systems analysis for the Department of Energy's solar distributed grid integration projects supported by the SunShot Initiative. These projects address technical issues and develop solutions for high-penetration grid integration of solar technologies into the electric power system to meet the goal of reducing cost and market barriers. PV Research Other Reliability &

  10. Lab Breakthrough: Microelectronic Photovoltaics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Microelectronic Photovoltaics Lab Breakthrough: Microelectronic Photovoltaics June 7, 2012 - 9:31am Addthis Sandia developed tiny glitter-sized photovoltaic (PV) cells that could revolutionize solar energy collection. The crystalline silicon micro-PV cells will be cheaper and have greater efficiencies than current PV collectors. View the entire YouTube Lab Breakthroughs playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are MEMS? MEMS are

  11. Fact Sheet: Photovoltaics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Photovoltaics Fact Sheet: Photovoltaics The U.S. Department of Energy (DOE)'s Solar Energy Technologies Office works with industry, academia, national laboratories, and other government agencies to advance solar photovoltaics (PV), which is the direct conversion of sunlight into electricity by a semiconductor, in support of the goals of the SunShot Initiative. SunShot supports research and development to aggressively advance PV technology by improving efficiency and reliability and lowering

  12. Crystalline Silicon Photovoltaics Research | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Crystalline Silicon Photovoltaics Research Crystalline Silicon Photovoltaics Research DOE supports crystalline silicon photovoltaic (PV) research and development efforts that lead to market-ready technologies. Below are a list of the projects, summary of the benefits, and discussion on the production and manufacturing of this solar technology. Background Crystalline silicon PV cells are the most common solar cells used in commercially available solar panels, representing more than 85% of world

  13. SERC Photovoltaics for Residential Buildings Webinar Transcript |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Photovoltaics for Residential Buildings Webinar Transcript SERC Photovoltaics for Residential Buildings Webinar Transcript A presentation sponsored by the U.S. Department of Energy about using solar photovoltaics (PV) systems to provide electricity for homes. 20110125_pv_webinar.pdf (109.9 KB) More Documents & Publications Sustainable Energy Resources for Consumers (SERC) - Solar Hot Water Solar Webinar Text Version TAP Webcast Transcript July-29, 2009

  14. Photovoltaic Energy Program Overview Fiscal Year 1996

    SciTech Connect

    1997-05-01

    Significant activities in the National Photovoltaic Program are reported for each of the three main program elements. In Research and Development, advances in thin-film materials and crystalline silicon materials are described. The Technology Development report describes activities in photovoltaic manufacturing technology, industrial expansion, module and array development, and testing photovoltaic system components. Systems Engineering and Applications projects described include projects with government agencies, projects with utilities, documentation of performance for international applications, and product certification.

  15. Photovoltaic manufacturing technology, Phase 1

    SciTech Connect

    Not Available

    1992-10-01

    This report describes subcontracted research by the Chronar Corporation, prepared by Advanced Photovoltaic Systems, Inc. (APS) for Phase 1 of the Photovoltaic Manufacturing Technology Development project. Amorphous silicon is chosen as the PV technology that Chronar Corporation and APS believe offers the greatest potential for manufacturing improvements, which, in turn, will result in significant cost reductions and performance improvements in photovoltaic products. The APS Eureka'' facility was chosen as the manufacturing system that can offer the possibility of achieving these production enhancements. The relationship of the Eureka'' facility to Chronar's batch'' plants is discussed. Five key areas are also identified that could meet the objectives of manufacturing potential that could lead to improved performance, reduced manufacturing costs, and significantly increased production. The projected long-term potential benefits of these areas are discussed, as well as problems that may impede the achievement of the hoped-for developments. A significant number of the problems discussed are of a generic nature and could be of general interest to the industry. The final section of this document addresses the cost and time estimates for achieving the solutions to the problems discussed earlier. Emphasis is placed on the number, type, and cost of the human resources required for the project.

  16. Admiralty Inlet Pilot Tidal Project Final Technical Report

    SciTech Connect

    Collar, Craig

    2015-09-14

    This document represents the final report for the Admiralty Inlet Pilot Tidal Project, located in Puget Sound, Washington, United States. The Project purpose was to license, permit, and install a grid-connected deep-water tidal turbine array (two turbines) to be used as a platform to gather operational and environmental data on tidal energy generation. The data could then be used to better inform the viability of commercial tidal energy generation from technical, economic, social, and environmental standpoints. This data would serve as a critical step towards the responsible advancement of commercial scale tidal energy in the United States and around the world. In late 2014, Project activities were discontinued due to escalating costs, and the DOE award was terminated in early 2015. Permitting, licensing, and engineering design activities were completed under this award. Final design, deployment, operation, and monitoring were not completed. This report discusses the results and accomplishments achieved under the subject award.

  17. Phoenix Photovoltaic Technology Co | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technology Co Jump to: navigation, search Name: Phoenix Photovoltaic Technology Co Place: Anyang City, Henan Province, China Zip: 456400 Product: Henan Province-based mono- and...

  18. Sandia Energy - Microsystems Enabled Photovoltaics (MEPV)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    About MEPV Researchers at Sandia National Laboratories are pioneering solar photovoltaic (PV) technologies that are cheaper to produce and easier to install than...

  19. Photovoltaic Energy Technology Module | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technology Module Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Energy Technology Module AgencyCompany Organization: World Bank Sector: Energy Focus...

  20. Ashland Electric Utility - Photovoltaic Rebate Program | Department...

    Energy.gov [DOE] (indexed site)

    The City of Ashland Conservation Division offers electric customers installing photovoltaic systems a rebate of either 0.50 per watt (residential) or 0.75 per watt...

  1. Photovoltaic Geographical Information System | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Information System Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Geographical Information System Focus Area: Renewable Energy Topics: Opportunity...

  2. Inverted, semitransparent small molecule photovoltaic cells ...

    Office of Scientific and Technical Information (OSTI)

    small molecule photovoltaic cells Authors: Xiao, Xin 1 ; Lee, Kyusang 1 ; Forrest, Stephen R. 2 + Show Author Affiliations Department of Electrical Engineering and Computer...

  3. Photovoltaic Silicon Cell Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... More Information Learn more about these solar cell materials: Polycrystalline Thin Films Single-Crystalline Thin Films Addthis Related Articles Photovoltaic Cell Material Basics ...

  4. NREL: Photovoltaics Research - News Release Archives

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    April 14, 2015 NREL Releases Report Describing Guidelines for PV Manufacturer Quality ... group has released new best practices guidelines for solar photovoltaic (PV) systems, ...

  5. Nanocrystal and Molecular Precursors for Photovoltaic Applications...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nanocrystal and Molecular Precursors for Photovoltaic Applications The objective in this proposal is to identify factors that limit the efficiency of nanocrystal based solar cells...

  6. Photovoltaics Value Analysis | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tool Summary LAUNCH TOOL Name: Photovoltaics Value Analysis Focus Area: Renewable Energy Topics: Environmental Website: www.nrel.govanalysispdfs42303.pdf Equivalent URI:...

  7. NREL: Photovoltaics Research - Solar Energy Research Facility

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Energy Research Facility Photo of the Solar Energy Research Facility. The exterior stepped clerestory of the Solar Energy Research Facility. Photovoltaics (PV) and basic ...

  8. Commercial Photovoltaic Application- California Convention Center

    Office of Energy Efficiency and Renewable Energy (EERE)

    In this b-roll, several photovoltaic arrays turn a California convention center rooftop and parking structure into a source of clean energy.

  9. PROJECT PROFILE: Support of International Photovoltaic Module...

    Energy.gov [DOE] (indexed site)

    This project supports the National Renewable Energy Laboratory's involvement in the Photovoltaic (PV) Module Quality Assurance Task Force (PVQAT) to develop the international test ...

  10. Photovoltaic System in Philadelphia Center City District

    Energy.gov [DOE]

    This photograph features a 3-kilowatt photovoltaic (PV) installation on the roof of a building in the Center City District of Philadelphia, Pennsylvania.

  11. Regional Test Centers | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    by the Department of Energy (DOE), are located in New Mexico, Colorado, Florida, Nevada, and Vermont to demonstrate the bankability of new photovoltaic (PV) technologies. ...

  12. Scanning Defect Mapping | Photovoltaic Research | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PVScan images showing defect density distributions for a cast wafer (a-upper) and ribbon (b-lower) PVsubstrates. Defect density (Nd) distributions in photovoltaic (PV) substrates ...

  13. Photovoltaic cell with thin CS layer

    DOEpatents

    Jordan, John F.; Albright, Scot P.

    1994-01-18

    An improved photovoltaic panel and method of forming a photovoltaic panel are disclosed for producing a high efficiency CdS/CdTe photovoltaic cell. The photovoltaic panel of the present invention is initially formed with a substantially thick Cds layer, and the effective thickness of the CdS layer is substantially reduced during regrowth to both form larger diameter CdTe crystals and substantially reduce the effective thickness of the C This invention was made with Government support under Subcontract No. ZL-7-06031-3 awarded by the Department of Energy. The Government has certain rights in this invention.

  14. General Services Administration Photovoltaics Project in Sacramento...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Document describes a request for proposal issued for the General Services Administration photovoltaic (PV) project. Download the document. (572.19 KB) More Documents & Publications ...

  15. Photovoltaics Economic Calculator (United States) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaics Economic Calculator (United States) Focus Area: Solar Topics: System & Application...

  16. NREL: Photovoltaics Research - Process Development and Integration...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Process Development and Integration Laboratory Photovoltaics Research Overhead photo a male standing next to a large circular piece of equipment. Work with Us Are you interested in...

  17. NREL: Photovoltaics Research - Materials Applications and Performance...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    about the scientists specializing in each area of PV research: National Center for Photovoltaics research staff Materials Applications and Performance research staff Materials...

  18. Computational Design of Interfaces for Photovoltaics | Argonne...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Computational Design of Interfaces for Photovoltaics PI Name: Noa Marom PI Email: nmarom@tulane.edu Institution: Tulane University Allocation Program: ALCC Allocation Hours at...

  19. NREL: Photovoltaics Research - NCPV Partnering Opportunities...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Opportunities for Industry The National Center for Photovoltaics (NCPV) provides several non-proprietary and proprietary partnering opportunities for industry researchers. We are...

  20. NREL: Photovoltaics Research - Solar PV Recycling Identified...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The report, co-authored by NREL, the International Renewable Energy Agency (IRENA) and the International Energy Agency's Photovoltaic Power Systems Programme (IEA-PVPS), is the ...

  1. Photovoltaic Crystalline Silicon Cell Basics | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Crystalline Silicon Cell Basics Photovoltaic Crystalline Silicon Cell Basics August 20, 2013 - 2:00pm Addthis To separate electrical charges, crystalline silicon cells must have a ...

  2. NREL: Photovoltaics Research - Keith A. Emery

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Responsivity Measurements," Proc. 2nd World Conference and Exhibition on Photovoltaic Solar Energy Conversion, Joint Research Center report EUR 18656, p. 2298, 1998. T. Moriarty...

  3. Selecting Solar: Insights into Residential Photovoltaic (PV)...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Selecting Solar: Insights into Residential Photovoltaic (PV) Quote Variation Carolyn Davidson and Robert Margolis National Renewable Energy Laboratory Technical Report NREL...

  4. NREL: Photovoltaics Research - Measurements and Characterization...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Renewable Energy Laboratory Photovoltaic Measurements and Characterization scientists and equipment: one of a large-scale laser scanner, one of a minority-carrier lifetime ...

  5. Exploring Photovoltaics (9 investigations) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Standards are listed at the beginning of the curriculum guide. Owner The NEED Project Lesson PlansActivity Exploring Photovoltaics (9 investigations): Teacher Guide Exploring...

  6. Solar photovoltaic reflective trough collection structure

    SciTech Connect

    Anderson, Benjamin J.; Sweatt, William C.; Okandan, Murat; Nielson, Gregory N.

    2015-11-19

    A photovoltaic (PV) solar concentration structure having at least two troughs encapsulated in a rectangular parallelepiped optical plastic structure, with the troughs filled with an optical plastic material, the troughs each having a reflective internal surface and approximately parabolic geometry, and the troughs each including photovoltaic cells situated so that light impinging on the optical plastic material will be concentrated onto the photovoltaic cells. Multiple structures can be connected to provide a solar photovoltaic collection system that provides portable, efficient, low-cost electrical power.

  7. Photovoltaic Systems Installed in Philadelphia Neighborhood

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features the 6-kilowatt (kw) rooftop photovoltaic system that Mercury Solar Systems installed in the Lower Kensington neighborhood of Philadelphia.

  8. PROJECT PROFILE: Additively Manufactured Photovoltaic Inverter...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrating hundreds of gigawatts of photovoltaic (PV) solar power onto our country's electric grid requires transformative power conversion system designs that find a balance ...

  9. NREL: Photovoltaics Research - Pholtovoltaic System Performance...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Pholtovoltaic System Performance Data Photo looking north-northwest at solar panels aligned ... Printable Version Photovoltaics Research Home Polycrystalline Thin Films Multijunctions ...

  10. Multiband semiconductor compositions for photovoltaic devices...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    perfectly satisfying the conditions for single-junction photovoltaics with the potential for power conversion efficiencies surpassing 50%. Inventors: Walukiewicz; Wladyslaw...

  11. Sandia National Laboratory Photovoltaic Design Resources | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    are included, along with additional sources of information and major U.S. PV system suppliers. References Sandia Photovoltaic Research and Development Retrieved from "http:...

  12. NREL: Photovoltaics Research - NREL and Partners Demonstrate...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Demonstration project shows utility-scale photovoltaic plants that incorporate ... Council of Texas to conduct a demonstration project on two utility-scale PV plants ...

  13. NREL: Photovoltaics Research - News Release Archives

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Department's National Renewable Energy Laboratory ... Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term ... (PV) solar energy systems, according to a ...

  14. Mesa Top Photovoltaic Array (Fact Sheet)

    SciTech Connect

    Not Available

    2009-07-01

    Fact sheet overview of the Mesa Top Photovoltaic Array project implemented by the Department of Energy Golden Office and National Renewable Energy Laboratory.

  15. Measurement of the rate of stellar tidal disruption flares

    SciTech Connect

    Van Velzen, Sjoert

    2014-09-01

    We report an observational estimate of the rate of stellar tidal disruption flares (TDFs) in inactive galaxies based on a successful search for these events among transients in galaxies using archival Sloan Digital Sky Survey (SDSS) multi-epoch imaging data (Stripe 82). This search yielded 186 nuclear flares in galaxies, 2 of which are excellent TDF candidates. Because of the systematic nature of the search, the very large number of galaxies, the long time of observation, and the fact that non-TDFs were excluded without resorting to assumptions about TDF characteristics, this study provides an unparalleled opportunity to measure the TDF rate. To compute the rate of optical stellar tidal disruption events, we simulate our entire pipeline to obtain the efficiency of detection. The rate depends on the light curves of TDFs, which are presently still poorly constrained. Using only the observed part of the SDSS light curves gives a model-independent upper limit to the optical TDF rate, N-dot <2×10{sup ?4} yr{sup ?1} galaxy{sup ?1} (90% CL), under the assumption that the SDSS TDFs are representative examples. We develop three empirical models of the light curves based on the two SDSS light curves and two more recent and better-sampled Pan-STARRS TDF light curves, leading to our best estimate of the rate: N-dot {sub TDF}=(1.5--2.0){sub ?1.3}{sup +2.7}×10{sup ?5} yr{sup ?1} galaxy{sup ?1}. We explore the modeling uncertainties by considering two theoretically motivated light curve models, as well as two different relationships between black hole mass and galaxy luminosity, and two different treatments of the cutoff in the visibility of TDFs at large M {sub BH}. From this we conclude that these sources of uncertainty are not significantly larger than the statistical ones. Our results are applicable for galaxies hosting black holes with mass in the range of a few 10{sup 6}-10{sup 8} M {sub ?}, and translates to a volumetric TDF rate of (4-8) × 10{sup –8±0.4} yr{sup –1} Mpc

  16. Jiangsu Shunfeng Photovoltaic Technology Co Ltd | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Shunfeng Photovoltaic Technology Co Ltd Jump to: navigation, search Name: Jiangsu Shunfeng Photovoltaic Technology Co Ltd Place: Changzhou, China Zip: 213169 Product: Manufacturer...

  17. Ningbo Zhousheng Solar Photovoltaic Manufactory Co Ltd | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Zhousheng Solar Photovoltaic Manufactory Co Ltd Jump to: navigation, search Name: Ningbo Zhousheng Solar Photovoltaic Manufactory Co Ltd Place: Ningbo, Zhejiang Province, China...

  18. Bengbu Sanxin Solar Photovoltaic Glass Co Ltd | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Bengbu Sanxin Solar Photovoltaic Glass Co Ltd Jump to: navigation, search Name: Bengbu Sanxin Solar Photovoltaic Glass Co Ltd Place: Bengbu, Anhui Province, China Product: Glass...

  19. U.S. Photovoltaic Industry Roadmap | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Industry Roadmap Jump to: navigation, search Tool Summary LAUNCH TOOL Name: U.S. Photovoltaic Industry Roadmap AgencyCompany Organization: United States...

  20. Sandia Energy - Sandia Tool Determines Value of Solar Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Tool Determines Value of Solar Photovoltaic Power Systems Home Renewable Energy Energy Partnership News News & Events Photovoltaic Solar Sandia Tool Determines Value of Solar...

  1. Sandia Energy - Photovoltaic (PV) Regional Test Center (RTC)...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic (PV) Regional Test Center (RTC) Website Goes Live Home Renewable Energy Energy Partnership News SunShot News & Events Photovoltaic Solar National Solar Thermal Test...

  2. Cixi Renhe Photovoltaic Electrical Appliance Co Ltd | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Cixi Renhe Photovoltaic Electrical Appliance Co Ltd Jump to: navigation, search Name: Cixi Renhe Photovoltaic Electrical Appliance Co Ltd Place: Cixi, Zhejiang Province, China Zip:...

  3. Zhejiang Sino Italian Photovoltaic Co Ltd SIPV | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Italian Photovoltaic Co Ltd SIPV Jump to: navigation, search Name: Zhejiang Sino-Italian Photovoltaic Co Ltd (SIPV) Place: Ningbo, Zhejiang Province, China Zip: 315800 Product: A...

  4. Nantong Qiangsheng Photovoltaic Technology Co Ltd QS Solar |...

    OpenEI (Open Energy Information) [EERE & EIA]

    Qiangsheng Photovoltaic Technology Co Ltd QS Solar Jump to: navigation, search Name: Nantong Qiangsheng Photovoltaic Technology Co Ltd (QS Solar) Place: Shanghai Municipality,...

  5. Changzhou EGing Photovoltaic Technology Co Ltd | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    EGing Photovoltaic Technology Co Ltd Jump to: navigation, search Name: Changzhou EGing Photovoltaic Technology Co Ltd Place: Jintan, Jiangsu Province, China Zip: 213213 Product:...

  6. Arima Photovoltaic And Optical Corp Arima PV | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic And Optical Corp Arima PV Jump to: navigation, search Name: Arima Photovoltaic And Optical Corp (Arima PV) Place: Taipei, Taiwan Product: Once a maker of computers,...

  7. Dali Yuanchang Photovoltaic Energy Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Yuanchang Photovoltaic Energy Co Ltd Jump to: navigation, search Name: Dali Yuanchang Photovoltaic Energy Co Ltd Place: Dali, Yunnan Province, China Product: China-based PV project...

  8. Introduction to Small-Scale Photovoltaic Systems (Including RETScreen...

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaic Systems (Including RETScreen Case Study) (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Introduction to Small-Scale Photovoltaic Systems...

  9. New Tomorrow Photovoltaic Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tomorrow Photovoltaic Co Ltd Jump to: navigation, search Name: New Tomorrow Photovoltaic Co Ltd Place: Shenzhen, Guangdong Province, China Zip: 518112 Sector: Solar Product:...

  10. Hebei Qindao Photovoltaic Technology Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Qindao Photovoltaic Technology Co Ltd Jump to: navigation, search Name: Hebei Qindao Photovoltaic Technology Co Ltd Place: Handan, Hebei Province, China Product: Chinese producer...

  11. Xi an Huanghe Photovoltaic Technology Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Huanghe Photovoltaic Technology Co Ltd Jump to: navigation, search Name: Xi'an Huanghe Photovoltaic Technology Co Ltd Place: Xi'an, Shaanxi Province, China Sector: Solar Product:...

  12. Jiangsu Jiasheng Photovoltaic Technology Co Ltd aka JS Solar...

    OpenEI (Open Energy Information) [EERE & EIA]

    Jiasheng Photovoltaic Technology Co Ltd aka JS Solar Ltd Jump to: navigation, search Name: Jiangsu Jiasheng Photovoltaic Technology Co Ltd (aka JS Solar Ltd) Place: Jiangsu...

  13. Zhongke Photovoltaic Material Technology Co Ltd | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Zhongke Photovoltaic Material Technology Co Ltd Jump to: navigation, search Name: Zhongke Photovoltaic Material Technology Co Ltd Place: Pingxiang, Jiangxi Province, China Product:...

  14. Decoupling Utility Profits from Sales: Issues for the Photovoltaic...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Decoupling Utility Profits from Sales: Issues for the Photovoltaic Industry Decoupling Utility Profits from Sales: Issues for the Photovoltaic Industry This decoupling white paper ...

  15. Table 4. Average value of photovoltaic modules, 2005-2015

    Energy Information Administration (EIA) (indexed site)

    Average value of photovoltaic modules, 2005-2015" "(dollars per peak watt)" ... Administration, Form EIA-63B, 'Annual Photovoltaic CellModule Shipments Report.' Note: ...

  16. EA-1638: Solyndra, Inc. Photovoltaic Manufacturing Facility in...

    Energy Saver

    8: Solyndra, Inc. Photovoltaic Manufacturing Facility in Fremont, CA EA-1638: Solyndra, Inc. Photovoltaic Manufacturing Facility in Fremont, CA March 2, 2009 EA-1638: Final ...

  17. Photovoltaic System Pricing Trends: Historical, Recent, and Near...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govsunshot energy.govsunshot Photovoltaic System Pricing Trends Historical, Recent, and ... U.S. Photovoltaic (PV) Prices and Cost Breakdowns: Q1 2015 Benchmarks for Residential, ...

  18. Table 2. Value and average value of photovoltaic module shipments...

    Energy Information Administration (EIA) (indexed site)

    Value and average value of photovoltaic module shipments, 2015" "Module value, total ... Administration, Form EIA-63B, 'Annual Photovoltaic CellModule Shipments Report' Note: ...

  19. Study Guide for Photovoltaic System Installers and Sample Examination...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Study Guide for Photovoltaic System Installers and Sample Examination Questions Study Guide for Photovoltaic System Installers and Sample Examination Questions This study guide ...

  20. Recommendations for Maximizing Battery Life in Photovoltaic Systems...

    Energy.gov [DOE] (indexed site)

    use of batteries in small stand-alone photovoltaic system drawn from over a decade of ... More Documents & Publications Study Guide for Photovoltaic System Installers and Sample ...

  1. Case Study: Mobile Photovoltaic System at Bechler Meadows Ranger...

    Energy Saver

    Mobile Photovoltaic System at Bechler Meadows Ranger Station, Yellowstone National Park Case Study: Mobile Photovoltaic System at Bechler Meadows Ranger Station, Yellowstone ...

  2. Factors Affecting Power Output by Photovoltaic Cells Lesson

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Factors Affecting Power Output by Photovoltaic Cells Grade Level(s): IB 2 (Senior - 3 ... C.8 Photovoltaic cells and dye-sensitized solar cells (DSSC) Understandings: * Solar ...

  3. Development of an Innovative Plug and Play Photovoltaic Electric...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Development of an Innovative Plug and Play Photovoltaic Electric System Development of an Innovative Plug and Play Photovoltaic Electric System logofreedm.jpg North Carolina State ...

  4. Sandia Labs' Photovoltaic Systems Evaluation Lab (PSEL) Marks...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Labs' Photovoltaic Systems Evaluation Lab (PSEL) Marks Accomplishments & Adds Capabilities ... Energy Systems LaboratoryBrayton Lab Photovoltaic Systems Evaluation Laboratory PV ...

  5. Overcoming the Exciton Diffusion Bottleneck in Organic Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Overcoming the Exciton Diffusion Bottleneck in Organic Photovoltaic Cells May 20, 2009 at ... are attractive for application in photovoltaic cells due to their compatibility with ...

  6. Notice of Intent to Issue Photovoltaic Research and Development...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Notice of Intent to Issue Photovoltaic Research and Development 2: Modules and Systems (PVRD2) Notice of Intent to Issue Photovoltaic Research and Development 2: Modules and ...

  7. Retrospective Benefit-Cost Evaluation of DOE Investments in Photovolta...

    Energy Saver

    DOE Investments in Photovoltaic Energy Systems Retrospective Benefit-Cost Evaluation of DOE Investments in Photovoltaic Energy Systems This study is a retrospective analysis of net ...

  8. FEMP Offers New Training on Photovoltaic Operations and Maintenance...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    New Training on Photovoltaic Operations and Maintenance Best Practices FEMP Offers New Training on Photovoltaic Operations and Maintenance Best Practices November 4, 2014 - 2:40pm ...

  9. NREL Seeks Proposals for Photovoltaic Technology Incubator Program...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Seeks Proposals for Photovoltaic Technology Incubator Program August 3, 2010 The U. S. ... The Photovoltaic (PV) Technology Incubator project fosters collaboration between U.S. ...

  10. Photovoltaic Supply Chain and Cross-Cutting Technologies Round...

    Energy.gov [DOE] (indexed site)

    products or processes for the photovoltaic (PV) industry through the High Impact ... solar modules manufactured from second and third generation photovoltaic technologies. ...

  11. Second Annual Electric Power Research Institute/Sandia Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Annual Electric Power Research InstituteSandia Photovoltaic Systems Symposium - Sandia ... Energy Systems LaboratoryBrayton Lab Photovoltaic Systems Evaluation Laboratory PV ...

  12. Sandians Win 'Best Paper' Award at Photovoltaic Conference in...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Win 'Best Paper' Award at Photovoltaic Conference in Japan - Sandia Energy Energy Search ... Energy Systems LaboratoryBrayton Lab Photovoltaic Systems Evaluation Laboratory PV ...

  13. Photovoltaic systems are often described and marketed in terms...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The PVWATTS and PVMod models were also evaluated. INTRODUCTION Photovoltaic systems are ... Fig 1. Systems Installed at Sandia's Photovoltaic Systems Optimization Laboratory 33 rd ...

  14. Photovoltaic Supply Chain and Cross-Cutting Technologies Round...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technology to Market Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1 Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1 On June 11, 2009, DOE ...

  15. Singlet Exciton Fission in Polyacenes: Photophysics and Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Exciton Fission in Polyacenes: Photophysics and Photovoltaic Applications December 13, ... However, the efficiency of any single-bandgap photovoltaic device under solar irradiation ...

  16. Background limited mid-infrared photodetection with photovoltaic...

    Office of Scientific and Technical Information (OSTI)

    with photovoltaic HgTe colloidal quantum dots Citation Details In-Document Search Title: Background limited mid-infrared photodetection with photovoltaic HgTe colloidal ...

  17. Parameter Estimation for Single Diode Models of Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Estimation for Single Diode Models of Photovoltaic Modules Clifford W. Hansen Prepared by ... Estimation for Single Diode Models of Photovoltaic Modules Clifford W. Hansen ...

  18. Thermal Reliability Study of Bypass Diodes in Photovoltaic Modules...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Thermal Reliability Study of Bypass Diodes in Photovoltaic Modules Thermal Reliability Study of Bypass Diodes in Photovoltaic Modules Presented at the PV Module Reliability ...

  19. MANUSCRIPT PREPARATION TEMPLATE FOR THE 35TH IEEE PHOTOVOLTAIC...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PERFORMANCE OF MICROSYSTEM ENABLED PHOTOVOLTAIC (MEPV) MODULES Anthony L. Lentine, ... INTRODUCTION Microsystem enabled photovoltaic (MEPV) modules, comprised of many thin (few ...

  20. Metal-halide perovskites for photovoltaic and light-emitting...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Metal-halide perovskites for photovoltaic and light-emitting devices* September 15, 2015 ... are rapidly emerging as serious contenders to rival the leading photovoltaic technologies. ...

  1. PHOTOVOLTAIC DC ARC FAULT DETECTOR TESTING AT SANDIA NATIONAL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PHOTOVOLTAIC DC ARC FAULT DETECTOR TESTING AT SANDIA NATIONAL LABORATORIES Jay Johnson 1 , ... ) added Article 690.11 that requires photovoltaic (PV) systems on or penetrating a ...

  2. U.S. Army Fort Carson Photovoltaics Project Lease | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    U.S. Army Fort Carson Photovoltaics Project Lease Document describes the project lease issued for the Fort Carson photovoltaic (PV) power purchase agreement (PPA). Download the ...

  3. Photovoltaic (PV) Module Level Remote Safety Disconnect - Energy...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Find More Like This Return to Search Photovoltaic (PV) Module Level Remote Safety ... system Applications and Industries * Photovoltaic solar * Emergency response Technology ...

  4. MANUSCRIPT PREPARATION TEMPLATE FOR THE 35TH IEEE PHOTOVOLTAIC...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... These standards will be applied to a number of federally-funded photovoltaic generation ... Used to Assess the Performance of Photovoltaic Systems, Sandia Report SAND2009-8258. ...

  5. Low Capital Photovoltaic Panel Electrical Output-Booster System...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Low Capital Photovoltaic Panel Electrical Output-Booster System Low Capital Photovoltaic Panel Electrical Output-Booster System This presentation summarizes the information given ...

  6. Sandia Energy » Photovoltaic Regional Testing Center (PV RTC...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    feed 0 Sandians Win 'Best Paper' Award at Photovoltaic Conference in Japan http:energy.sandia.govsandians-win-best-paper-award-at-photovoltaic-conference-in-j...

  7. Udhaya Energy Photovoltaics P Ltd UPV Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Udhaya Energy Photovoltaics P Ltd UPV Solar Jump to: navigation, search Name: Udhaya Energy Photovoltaics (P) Ltd. (UPV Solar) Place: Coimbatore, Tamil Nadu, India Zip: 641 407...

  8. National Center for Photovoltaics NCPV | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Center for Photovoltaics NCPV Jump to: navigation, search Name: National Center for Photovoltaics (NCPV) Product: String representation "The National Ce ... ics community.'" is too...

  9. PVM Lines and Services LLC aka PVML Photovoltaics | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    PVM Lines and Services LLC aka PVML Photovoltaics Jump to: navigation, search Name: PVM Lines and Services LLC (aka PVML Photovoltaics) Place: Princeton, New Jersey Zip: 8540...

  10. Pioneer Valley Photovoltaics Cooperative aka PV Squared | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Photovoltaics Cooperative aka PV Squared Jump to: navigation, search Name: Pioneer Valley Photovoltaics Cooperative (aka PV Squared) Place: New Britain, Connecticut Zip: 6051...

  11. UPL USL Photovoltaics Pvt Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    UPL USL Photovoltaics Pvt Ltd Jump to: navigation, search Name: UPL (USL Photovoltaics Pvt) Ltd. Place: Coimbatore, Tamil Nadu, India Zip: 641 014 Product: Coimbatore-based...

  12. NREL: Photovoltaics Research - Sara MacAlpine, Ph.D.

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    at the 39th IEEE Photovoltaic Specialists Conference (PVSC). Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  13. Renewable Energies and Photovoltaics Spain S L REPS | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    and Photovoltaics Spain S L REPS Jump to: navigation, search Name: Renewable Energies and Photovoltaics Spain S.L. (REPS) Place: Spain Sector: Solar Product: Spanish solar project...

  14. EPV Solar Inc formerly Energy Photovoltaics | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    EPV Solar Inc formerly Energy Photovoltaics Jump to: navigation, search Name: EPV Solar Inc (formerly Energy Photovoltaics) Place: Robbinsville, New Jersey Zip: 8691 Product: US...

  15. Photovoltaic Electrical Contact and Cell Coating Basics | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electrical Contact and Cell Coating Basics Photovoltaic Electrical Contact and Cell Coating Basics August 19, 2013 - 4:12pm Addthis The outermost layers of photovoltaic (PV) cell, ...

  16. Project Profile: Evaluating the Causes of Photovoltaics Cost...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    progress observed for photovoltaics (PV) over the past half century. Motivation Photovoltaic technologies, including silicon and thin film solar cells, have experienced ...

  17. Solar Junction Develops World Record Setting Concentrated Photovoltaic...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Junction Develops World Record Setting Concentrated Photovoltaic Solar Cell Solar Junction Develops World Record Setting Concentrated Photovoltaic Solar Cell April 18, 2013 - ...

  18. Partial Shade Stress Test for Thin-Film Photovoltaic Modules...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Partial Shade Stress Test for Thin-Film Photovoltaic Modules Preprint Timothy J. ... Partial shade stress test for thin-film photovoltaic modules Timothy J Silverman , ...

  19. Solar Photovoltaic Financing: Deployment on Public Property by...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar Photovoltaic Financing: Deployment on Public Property by State and Local Governments Solar Photovoltaic Financing: Deployment on Public Property by State and Local ...

  20. High-Performance Home Technologies: Solar Thermal & Photovoltaic...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar Thermal & Photovoltaic Systems; Volume 6 Building America Best Practices Series High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems; Volume 6 ...

  1. Cost and Potential of Monolithic CIGS Photovoltaic Modules (Presentati...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Cost and Potential of Monolithic CIGS Photovoltaic Modules IEEE Photovoltaic Specialists Conference, New Orleans Kelsey A. W. Horowitz and Michael Woodhouse June 17, 2015 NREL...

  2. Sandia Participation in the 39th IEEE Photovoltaic Specialists...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Participation in the 39th IEEE Photovoltaic Specialists (PVSC) Conference - Sandia Energy ... Energy Systems LaboratoryBrayton Lab Photovoltaic Systems Evaluation Laboratory PV ...

  3. Sustainable Energy Resources for Consumers (SERC) - Solar Photovoltaic...

    Energy Saver

    Solar Photovoltaics Sustainable Energy Resources for Consumers (SERC) - Solar Photovoltaics This presentation, aimed at Sustainable Energy Resources for Consumers (SERC) grantees, ...

  4. Shanghai Hi Show Photovoltaic Science Technology Co Ltd | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Hi Show Photovoltaic Science Technology Co Ltd Jump to: navigation, search Name: Shanghai Hi-Show Photovoltaic Science & Technology Co., Ltd Place: Shanghai Municipality, China...

  5. NREL: Performance and Reliability R&D - Photovoltaic Reliability...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Reliability Publications Sign up for NREL PV Reliability and Performance updates today NREL publishes photovoltaic (PV) reliability journal articles, technical ...

  6. NREL: Performance and Reliability R&D - Photovoltaic Performance...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Performance and Reliability Workshops NREL hosts workshops focused on photovoltaic (PV) performance and reliability to encourage collaboration and communication among ...

  7. NREL, Xcel Energy Sign Photovoltaic Development Agreement - News...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL, Xcel Energy Sign Photovoltaic Development Agreement September 29, 2005 Denver, Colo. ... Statewide standards for the installation of photovoltaic systems must be in place by the ...

  8. Thin Film CIGS and CdTe Photovoltaic Technologies: Commercialization...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photovoltaic Technologies: Commercialization, Critical Issues, and Applications Preprint H.S. Ullal and B. von Roedern To be presented at the 22nd European Photovoltaic Solar ...

  9. NREL: Energy Analysis - Crystalline Silicon and Thin Film Photovoltaic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Crystalline Silicon and Thin Film Photovoltaic Results - Life Cycle Assessment ... residential and utility-scale solar photovoltaic (PV) systems with wide-ranging results. ...

  10. Ethylene-Vinyl Acetate Potential Problems for Photovoltaic Packaging...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Ethylene-Vinyl Acetate Potential Problems for Photovoltaic Packaging Preprint M.D. Kempe, ... the 2006 IEEE 4 th World Conference on Photovoltaic Energy Conversion (WCPEC-4) Waikoloa, ...

  11. TIDALLY DRIVEN DYNAMOS IN A ROTATING SPHERE

    SciTech Connect

    CĂ©bron, D.; Hollerbach, R. E-mail: r.hollerbach@leeds.ac.uk

    2014-07-01

    Large-scale planetary or stellar magnetic fields generated by a dynamo effect are mostly attributed to flows forced by buoyancy forces in electrically conducting fluid layers. However, these large-scale fields may also be controlled by tides, as previously suggested for the star Ď„-boo, Mars, or the early Moon. By simulating a small local patch of a rotating fluid, Barker and Lithwick have recently shown that tides can drive small-scale dynamos by exciting a hydrodynamic instability, the so-called elliptical (or tidal) instability. By performing global magnetohydrodynamic simulations of a rotating spherical fluid body, we investigate if this instability can also drive the observed large-scale magnetic fields. We are thus interested in the dynamo threshold and the generated magnetic field in order to test if such a mechanism is relevant for planets and stars. Rather than solving the problem in a geometry deformed by tides, we consider a spherical fluid body and add a body force to mimic the tidal deformation in the bulk of the fluid. This allows us to use an efficient spectral code to solve the magnetohydrodynamic problem. We first compare the hydrodynamic results with theoretical asymptotic results and numerical results obtained in a truly deformed ellipsoid, which confirms the presence of elliptical instability. We then perform magnetohydrodynamic simulations and investigate the dynamo capability of the flow. Kinematic and self-consistent dynamos are finally simulated, showing that the elliptical instability is capable of generating a dipole-dominated large-scale magnetic field in global simulations of a fluid rotating sphere.

  12. National Center for Photovoltaics at NREL

    SciTech Connect

    VanSant, Kaitlyn; Wilson, Greg; Berry, Joseph; Al-Jassim, Mowafak; Kurtz, Sarah

    2013-11-07

    The National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV is a central resource for our nation's capabilities in PV research, development, deployment, and outreach.

  13. National Center for Photovoltaics at NREL

    ScienceCinema

    VanSant, Kaitlyn; Wilson, Greg; Berry, Joseph; Al-Jassim, Mowafak; Kurtz, Sarah

    2016-07-12

    The National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV is a central resource for our nation's capabilities in PV research, development, deployment, and outreach.

  14. Photovoltaic Energy Program overview, fiscal year 1997

    SciTech Connect

    1998-02-01

    The US Department of Energy (DOE) Photovoltaic Energy Program fosters the widespread acceptance of photovoltaic (PV) technology and accelerates commercial use of US PV products. The Program is founded on a collaborative strategy involving industry, the research and development community, potential users, utilities, and state and federal agencies. There are three main Program elements: Systems Engineering and Applications, Technology Development, and Research and Development.

  15. Photovoltaic Cell And Manufacturing Process

    DOEpatents

    Albright, Scot P.; Chamberlin, Rhodes R.

    1996-11-26

    Provided is a method for controlling electrical properties and morphology of a p-type material of a photovoltaic device. The p-type material, such as p-type cadmium telluride, is first subjected to heat treatment in an oxidizing environment, followed by recrystallization in an environment substantially free of oxidants. In one embodiment, the heat treatment step comprises first subjecting the p-type material to an oxidizing atmosphere at a first temperature to getter impurities, followed by second subjecting the p-type material to an oxidizing atmosphere at a second temperature, higher than the first temperature, to develop a desired oxidation gradient through the p-type material.

  16. Optimized microsystems-enabled photovoltaics

    SciTech Connect

    Cruz-Campa, Jose Luis; Nielson, Gregory N.; Young, Ralph W.; Resnick, Paul J.; Okandan, Murat; Gupta, Vipin P.

    2015-09-22

    Technologies pertaining to designing microsystems-enabled photovoltaic (MEPV) cells are described herein. A first restriction for a first parameter of an MEPV cell is received. Subsequently, a selection of a second parameter of the MEPV cell is received. Values for a plurality of parameters of the MEPV cell are computed such that the MEPV cell is optimized with respect to the second parameter, wherein the values for the plurality of parameters are computed based at least in part upon the restriction for the first parameter.

  17. Tidal energy site resource assessment in the East River tidal strait, near Roosevelt Island, New York, New York

    SciTech Connect

    Gunawan, Budi; Neary, Vincent S.; Colby, Jonathan

    2014-06-22

    This study demonstrates a site resource assessment to examine the temporal variation of the mean current, turbulence intensities, and power densities for a tidal energy site in the East River tidal strait. These variables were derived from two-months of acoustic Doppler velocimeter (ADV) measurements at the design hub height of the Verdant Power Gen5 hydrokinetic turbine. The study site is a tidal strait that exhibits semi-diurnal tidal current characteristics, with a mean horizontal current speed of 1.4 m s-1, and turbulence intensity of 15% at a reference mean current of 2 m s-1. Flood and ebb flow directions are nearly bi-directional, with higher current magnitude during flood tide, which skews the power production towards the flood tide period. The tidal hydrodynamics at the site are highly regular, as indicated by the tidal current time series that resembles a sinusoidal function. This study also shows that the theoretical force and power densities derived from the current measurements can significantly be influenced by the length of the time window used for averaging the current data. Furthermore, the theoretical power density at the site, derived from the current measurements, is one order of magnitude greater than that reported in the U.S. national resource assessment. As a result, this discrepancy highlights the importance of conducting site resource assessments based on measurements at the tidal energy converter device scale.

  18. Tidal energy site resource assessment in the East River tidal strait, near Roosevelt Island, New York, New York

    DOE PAGES [OSTI]

    Gunawan, Budi; Neary, Vincent S.; Colby, Jonathan

    2014-06-22

    This study demonstrates a site resource assessment to examine the temporal variation of the mean current, turbulence intensities, and power densities for a tidal energy site in the East River tidal strait. These variables were derived from two-months of acoustic Doppler velocimeter (ADV) measurements at the design hub height of the Verdant Power Gen5 hydrokinetic turbine. The study site is a tidal strait that exhibits semi-diurnal tidal current characteristics, with a mean horizontal current speed of 1.4 m s-1, and turbulence intensity of 15% at a reference mean current of 2 m s-1. Flood and ebb flow directions are nearlymore » bi-directional, with higher current magnitude during flood tide, which skews the power production towards the flood tide period. The tidal hydrodynamics at the site are highly regular, as indicated by the tidal current time series that resembles a sinusoidal function. This study also shows that the theoretical force and power densities derived from the current measurements can significantly be influenced by the length of the time window used for averaging the current data. Furthermore, the theoretical power density at the site, derived from the current measurements, is one order of magnitude greater than that reported in the U.S. national resource assessment. As a result, this discrepancy highlights the importance of conducting site resource assessments based on measurements at the tidal energy converter device scale.« less

  19. General Services Administration Photovoltaics Project in Sacramento, California

    Energy.gov [DOE]

    Document describes a request for proposal issued for the General Services Administration photovoltaic (PV) project.

  20. Nanostructured Materials for Improved Photovoltaics

    SciTech Connect

    Morgan, Sarah E.; Cannon, Gordon C.; Heinhorst, Sabine; Rawlins, James W.

    2004-07-18

    This research addresses the fundamental issues of cell morphology and phase dimensions that determine conversion efficiency in polymeric organic photovoltaic devices. The approach will help explain the relationships between morphological control, domain size, and power conversion efficiency in OPV devices, with the goal of providing direction for development of OPV systems with greater efficiency. The program addresses the DOE Office of Energy Efficiency and Renewable Energy goals of providing economically sustainable clean energy technologies to reduce dependence on foreign oil. This research focused on synthesis, fabrication and analysis of both active and protective layers for improved organic and inorganic hybrid PV (PhotoVoltaic) materials. A systematic study of phase size, shape, and distance was conducted to determine the effects of morphology in each process. Four classes of nanostructured materials were studied: 1) functional block copolymers (AB, acceptor-donor blocks) that self-assemble into matched domain sizes 2) synthetic core-shell particles with separate acceptor and donor layers 3) bacterial micro-compartment (BMC) proteins as self-assembling shells for core-shell nanoparticle constructs and 4) polyhedral oligomeric silsesquioxane (POSS) nanostructured chemicals for enhanced efficiency and durability.

  1. Editorial: Photovoltaic Materials and Devices

    SciTech Connect

    Sopori, B.; Tan, T.; Rupnowski, P.

    2012-01-01

    As the global energy needs grow, there is increasing interest in the generation of electricity by photovoltaics (PVs) devices or solar cells - devices that convert sunlight to electricity. Solar industry has seen an enormous growth during the last decade. The sale of PV modules has exceeded 27 GW in 2011, with significant contributions to the market share from all technologies. While the silicon technology continues to have the dominant share, the other thin film technologies (CdTe, CIGS, a-Si, and organic PV) are experiencing fast growth. Increased production of silicon modules has led to a very rapid reduction in their price and remains as benchmark for other technologies. The PV industry is in full gear to commercialize new automated equipment for solar cell and module production, instrumentation for process monitoring technologies, and for implementation of other cost-reduction approaches, and extensive research continues to be carried out in many laboratories to improve the efficiency of solar cells and modules without increasing the production costs. A large variety of solar cells, which differ in the material systems used, design, PV structure, and even the principle of PV conversion, are designed to date. This special issue contains peer-reviewed papers in the recent developments in research related to broad spectrum of photovoltaic materials and devices. It contains papers on many aspects of solar cells-the growth and deposition, characterization, and new material development.

  2. Linearity Testing of Photovoltaic Cells

    SciTech Connect

    Emery, K.; Winter, S.; Pinegar, S.; Nalley, D.

    2006-01-01

    Photovoltaic devices are rated in terms of their peak power with respect to a specific spectrum, total irradiance, and temperature. To rate photovoltaic devices, a reference detector is required whose response is linear with total irradiance. This paper describes a procedure to determine the linearity of the short-circuit current (I{sub sc}) versus the total irradiance (E{sub tot}) by illuminating a reference cell with two lamps. A device is linear if the current measured with both lamps illuminating the cell is the same as the sum of the currents with each lamp illuminating the cell. The two-lamp method is insensitive to the light spectra or spatial nonuniformity changing with irradiance. The two-lamp method is rapid, easy to implement, and does not require operator intervention to change the irradiances. The presence of room light only limits the lowest irradiance that can be evaluated. Unlike other methods, the two-lamp method does not allow the current to be corrected for nonlinear effects.

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

    Office of Scientific and Technical Information (OSTI)

    DOE Science Showcase - Tidal Energy Point absorbers generate electricity by converting the energy in waves using a float that rides the waves and is attached to a moored conversion ...

  4. MHK Projects/Tidal Energy Device Evaluation Center TIDEC | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    StateProvince Maine Project Country United States Project Resource Click here Current Tidal Coordinates 44.3879, -68.7998 Project Phase Phase 1 Device Nameplate Capacity (MW)...

  5. Pulse Tidal formerly Pulse Generation | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    formerly Pulse Generation Jump to: navigation, search Name: Pulse Tidal (formerly Pulse Generation) Place: Hull, England, United Kingdom Zip: HU5 3LP Product: UK-based developer of...

  6. MHK Projects/Lubec Narrows Tidal | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Resource Click here Current Tidal Project Nearest Body of Water Lubec Narrows and Johnson Bay Coordinates 44.8652, -66.9828 Project Phase Phase 1 PermitLicense Buildout...

  7. MHK Technologies/Sabella subsea tidal turbine | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    surface. These turbines are stabilised by gravity andor are anchored according to the nature of the seafloor. They are pre-orientated in the direction of the tidal currents, and...

  8. MHK Technologies/MORILD 2 Floating Tidal Power System | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    based on the same principle as horizontal axis wind turbines. The plant has 4 two-blade underwater turbines and can utilize the energy potential in tidal and ocean currents....

  9. Assessment of Energy Production Potential from Tidal Streams...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The project documented in this report created a national database of tidal stream energy potential, as well as a GIS tool usable by industry in order to accelerate the market for ...

  10. Assessment of Energy Production Potential from Tidal Streams...

    Energy.gov [DOE] (indexed site)

    Assessment of Energy Production Potential from Tidal Streams in the United States Final ... Award Number: DE-FG36-08GO18174 Project Title: Assessment of Energy Production Potential ...

  11. Application to Export Electric Energy OE Docket No. EA-422 Tidal Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Marketing Inc. | Department of Energy 2 Tidal Energy Marketing Inc. Application to Export Electric Energy OE Docket No. EA-422 Tidal Energy Marketing Inc. Application from Tidal to export electric energy to Canada. EA-422 Tidal Energy Mktg. (CN).pdf (282.23 KB) More Documents & Publications Application to Export Electric Energy OE Docket No. EA-422 Tidal Energy Marketing Inc.: Federal Register Notice, Volume 81, No. 133 - July 12, 2016 Application to Export Electric Energy OE Docket No.

  12. Funding Opportunity Announcement: Photovoltaics Research and Development 2:

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Modules and Systems (PVRD2) | Department of Energy Photovoltaics Research and Development 2: Modules and Systems (PVRD2) Funding Opportunity Announcement: Photovoltaics Research and Development 2: Modules and Systems (PVRD2) Subprogram: Photovoltaics Funding Number: DE-FOA-0001654 Funding Amount: $25 million Description The Photovoltaics Research and Development 2: Modules and Systems (PVRD2) funding program aims to advance photovoltaic (PV) technology towards and beyond the 2020 SunShot

  13. Request for Information on Photovoltaic Module Recycling

    Energy.gov [DOE]

    The U.S. Department of Energy SunShot Initiative requests feedback from industry, academia, research laboratories, government agencies, and other stakeholders on issues related to photovoltaic (PV) module recycling technology. SunShot intends to understand the current state of recycling technology and the areas of research that could lead to impactful recycling technologies to support the developing PV industry. The intent of this request for information is to generate discussion related to planning for the end of life of photovoltaic modules and to create a list of high impact research topics in photovoltaics recycling.

  14. Photovoltaics

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and Application Center for Hydrogen Energy Research Programs ARPA-E Basic Energy Sciences ... Sea State Contour) Code Online Abstracts and Reports Water Power Personnel ...

  15. Photovoltaic module and module arrays

    SciTech Connect

    Botkin, Jonathan; Graves, Simon; Lenox, Carl J. S.; Culligan, Matthew; Danning, Matt

    2013-08-27

    A photovoltaic (PV) module including a PV device and a frame, The PV device has a PV laminate defining a perimeter and a major plane. The frame is assembled to and encases the laminate perimeter, and includes leading, trailing, and side frame members, and an arm that forms a support face opposite the laminate. The support face is adapted for placement against a horizontal installation surface, to support and orient the laminate in a non-parallel or tilted arrangement. Upon final assembly, the laminate and the frame combine to define a unitary structure. The frame can orient the laminate at an angle in the range of 3.degree.-7.degree. from horizontal, and can be entirely formed of a polymeric material. Optionally, the arm incorporates integral feature(s) that facilitate interconnection with corresponding features of a second, identically formed PV module.

  16. Photovoltaic module and module arrays

    DOEpatents

    Botkin, Jonathan; Graves, Simon; Lenox, Carl J. S.; Culligan, Matthew; Danning, Matt

    2012-07-17

    A photovoltaic (PV) module including a PV device and a frame. The PV device has a PV laminate defining a perimeter and a major plane. The frame is assembled to and encases the laminate perimeter, and includes leading, trailing, and side frame members, and an arm that forms a support face opposite the laminate. The support face is adapted for placement against a horizontal installation surface, to support and orient the laminate in a non-parallel or tilted arrangement. Upon final assembly, the laminate and the frame combine to define a unitary structure. The frame can orient the laminate at an angle in the range of 3.degree.-7.degree. from horizontal, and can be entirely formed of a polymeric material. Optionally, the arm incorporates integral feature(s) that facilitate interconnection with corresponding features of a second, identically formed PV module.

  17. High-performance Si microwire photovoltaics

    SciTech Connect

    Kelzenberg, Michael D.; Turner-Evans, Daniel B.; Putnam, Morgan C.; Boettcher, Shannon W.; Briggs, Ryan M.; Baek, Jae Y.; Lewis, Nathan S.; Atwater, Harry A.

    2011-01-07

    Crystalline Si wires, grown by the vapor–liquid–solid (VLS) process, have emerged as promising candidate materials for low-cost, thin-film photovoltaics. Here, we demonstrate VLS-grown Si microwires that have suitable electrical properties for high-performance photovoltaic applications, including long minority-carrier diffusion lengths (Ln>> 30 µm) and low surface recombination velocities (S << 70 cm·s-1). Single-wire radial p–n junction solar cells were fabricated with amorphous silicon and silicon nitride surface coatings, achieving up to 9.0% apparent photovoltaic efficiency, and exhibiting up to ~600 mV open-circuit voltage with over 80% fill factor. Projective single-wire measurements and optoelectronic simulations suggest that large-area Si wire-array solar cells have the potential to exceed 17% energy-conversion efficiency, offering a promising route toward cost-effective crystalline Si photovoltaics.

  18. Microsystem enabled photovoltaic modules and systems (Patent...

    Office of Scientific and Technical Information (OSTI)

    The absorber layer includes an array of photovoltaic (PV) elements. The fixed optic layer ... the translatable optic layer into one of the PV elements such that it is quasi-collimated. ...

  19. Basic research challenges in crystalline silicon photovoltaics

    SciTech Connect

    Werner, J.H.

    1995-08-01

    Silicon is abundant, non-toxic and has an ideal band gap for photovoltaic energy conversion. Experimental world record cells of 24 % conversion efficiency with around 300 {mu}m thickness are only 4 % (absolute) efficiency points below the theoretical Auger recombination-limit of around 28 %. Compared with other photovoltaic materials, crystalline silicon has only very few disadvantages. The handicap of weak light absorbance may be mastered by clever optical designs. Single crystalline cells of only 48 {mu}m thickness showed 17.3 % efficiency even without backside reflectors. A technology of solar cells from polycrystalline Si films on foreign substrates arises at the horizon. However, the disadvantageous, strong activity of grain boundaries in Si could be an insurmountable hurdle for a cost-effective, terrestrial photovoltaics based on polycrystalline Si on foreign substrates. This talk discusses some basic research challenges related to a Si based photovoltaics.

  20. Photovoltaic System on South Table Mountain

    Energy.gov [DOE]

    This photograph features a photovoltaic array that is housed at the mesa top behind the National Renewable Energy Laboratory (NREL). The project was financed through a power purchase agreement (PPA...