National Library of Energy BETA

Sample records for nuclear photovoltaics wind

  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. 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 ...

  4. Oscillation Damping: A Comparison of Wind and Photovoltaic Power Plant Capabilities: Preprint

    SciTech Connect

    Singh, M.; Allen, A.; Muljadi, E.; Gevorgian, V.

    2014-07-01

    This work compares and contrasts strategies for providing oscillation damping services from wind power plants and photovoltaic power plants.

  5. A novel hybrid (wind-photovoltaic) system sizing procedure

    SciTech Connect

    Hocaoglu, Fatih O.; Gerek, Oemer N.; Kurban, Mehmet

    2009-11-15

    Wind-photovoltaic hybrid system (WPHS) utilization is becoming popular due to increasing energy costs and decreasing prices of turbines and photovoltaic (PV) panels. However, prior to construction of a renewable generation station, it is necessary to determine the optimum number of PV panels and wind turbines for minimal cost during continuity of generated energy to meet the desired consumption. In fact, the traditional sizing procedures find optimum number of the PV modules and wind turbines subject to minimum cost. However, the optimum battery capacity is either not taken into account, or it is found by a full search between all probable solution spaces which requires extensive computation. In this study, a novel description of the production/consumption phenomenon is proposed, and a new sizing procedure is developed. Using this procedure, optimum battery capacity, together with optimum number of PV modules and wind turbines subject to minimum cost can be obtained with good accuracy. (author)

  6. Photovoltaic module with removable wind deflector

    DOEpatents

    Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

    2013-05-28

    A photovoltaic (PV) module assembly including a PV module, a deflector, and a clip. The PV module includes a PV device and a frame. A PV laminate is assembled to the frame, and the frame includes a support arm forming a seat. The deflector defines a front face and a rear face, with the clip extending from either the trailing frame member or the rear face of the deflector. In a mounted state, the deflector is nested within the seat and is releasably mounted to the trailing frame member via the clip. In some embodiments, the support arm forms a second seat, with the PV module assembly providing a second mounted state in which the deflector is in a differing orientation/slope, nested within the second seat and releasably mounted to the trailing frame member via the clip.

  7. Photovoltaic module with removable wind deflector

    DOEpatents

    Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

    2012-08-07

    A photovoltaic (PV) module assembly including a PV module, a deflector, and a clip. The PV module includes a PV device and a frame. A PV laminate is assembled to the frame, and the frame includes a support arm forming a seat. The deflector defines a front face and a rear face, with the clip extending from either the trailing frame member or the rear face of the deflector. In a mounted state, the deflector is nested within the seat and is releasably mounted to the trailing frame member via the clip. In some embodiments, the support arm forms a second seat, with the PV module assembly providing a second mounted state in which the deflector is in a differing orientation/slope, nested within the second seat and releasably mounted to the trailing frame member via the clip.

  8. Photovoltaic module with removable wind deflector

    DOEpatents

    Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

    2014-02-18

    A photovoltaic (PV) module assembly including a PV module, a deflector, and a clip. The PV module includes a PV device and a frame. A PV laminate is assembled to the frame, and the frame includes a support arm forming a seat. The deflector defines a front face and a rear face, with the clip extending from either the trailing frame member or the rear face of the deflector. In a mounted state, the deflector is nested within the seat and is releasably mounted to the trailing frame member via the clip. In some embodiments, the support arm forms a second seat, with the PV module assembly providing a second mounted state in which the deflector is in a differing orientation/slope, nested within the second seat and releasably mounted to the trailing frame member via the clip.

  9. Sizing wind/photovoltaic hybrids for households in inner Mongolia

    SciTech Connect

    Barley, C.D.; Lew, D.J.; Flowers, L.T.

    1997-12-31

    Approximately 140,000 wind turbines currently provide electricity to about one-third of the non-grid-connected households in Inner Mongolia. However, these households often suffer from a lack of power during the low-wind summer months. This report describes an analysis of hybrid wind/photovoltaic (PV) systems for such households. The sizing of the major components is based on a subjective trade-off between the cost of the system and the percent unmet load, as determined by the Hybrid2 software in conjunction with a simplified time-series model. Actual resource data (wind speed and solar radiation) from the region are processed so as to best represent the scenarios of interest. Small wind turbines of both Chinese and U.S. manufacture are considered in the designs. The results indicate that combinations of wind and PV are more cost-effective than either one alone, and that the relative amount of PV in the design increases as the acceptable unmet load decreases and as the average wind speed decreases.

  10. 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 ...

  11. 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 ...

  12. wind | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    wind Wind farm generating more renewable energy than expected for Pantex The Texas Panhandle has some of the world's best winds for creating renewable energy, and the Wind Farm at the Pantex Plant is taking advantage of those winds, generating up to 60% of the energy needs of the plant in an inaugural program, mandated by the White House. Back in 2013,... NNSA chief visits New Mexico laboratories NNSA Administrator Lt. Gen. Frank Klotz (Ret.) visited NNSA's New Mexico laboratories last week. At

  13. Wind loads on flat plate photovoltaic array fields. Phase III, final report

    SciTech Connect

    Miller, R.D.; Zimmerman, D.K.

    1981-04-01

    The results of an experimental analysis (boundary layer wind tunnel test) of the aerodynamic forces resulting from winds acting on flat plate photovoltaic arrays are presented. Local pressure coefficient distributions and normal force coefficients on the arrays are shown and compared to theoretical results. Parameters that were varied when determining the aerodynamic forces included tilt angle, array separation, ground clearance, protective wind barriers, and the effect of the wind velocity profile. Recommended design wind forces and pressures are presented, which envelop the test results for winds perpendicular to the array's longitudinal axis. This wind direction produces the maximum wind loads on the arrays except at the array edge where oblique winds produce larger edge pressure loads.

  14. 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.

  15. 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.

  16. CNEEC - Photovoltaics Tutorial by Prof. Clemens

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

    Photovoltaics

  17. Lessons Learned from the U.S. Photovoltaic Industry and Implications for Development of Distributed Small Wind: Preprint

    SciTech Connect

    Forsyth, T.; Tombari, C.; Nelson, M.

    2006-06-01

    Report examining market development issues in the solar photovoltaic (PV) industry, including Federal policy infrastructure and incentives, state and local policy infrastructure, and business support,as they relate to the small wind industry.

  18. 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)

  19. Optimizing the size of photovoltaic/wind hybrid generating system controlled by fuzzy inference

    SciTech Connect

    Nakagawa, Shigeyasu; Morimoto, Hideyuki; Hadjimarkou, Markellos; Kemmoku, Yoshishige; Sakakibara, Tateki

    1995-11-01

    The photovoltaic/wind hybrid generating system is analyzed through simulation, and the comparison between the proportional control method (the conventional method) and the fuzzy control method which is proposed in this paper is performed. The results show that the utilization of fuzzy control method, comparing the proportional method, can cut down the energy surplus in nearly half, so that renewable energy can be used effectively. Furthermore, change of the state of charge (SOC) can be controlled, so it becomes favorable for the protection of the storage battery. From these things, thus, it is understood that the capacity of the storage battery can be reduced compared to the conventional method. And this study also shows the method calculates the optimal structure ratio of PV array/wind turbines from electrical load data and weather data.

  20. Feasibility Study for Photovoltaics, Wind, solar Hot Water and Hybrid Systems

    SciTech Connect

    Hooks, Ronald; Montoya, Valerie

    2008-03-26

    Southwestern Indian Polytechnic Institute (SIPI) located in Albuquerque New Mexico is a community college that serves American Indians and Alaska Natives. SIPI’s student body represents over 100 Native American Tribes. SIPI completed a renewable energy feasibility study program and established renewable energy hardware on the SIPI campus, which supplements and creates an educational resource to teach renewable energy courses. The SIPI campus is located, and has as student origins, areas, in which power is an issue in remote reservations. The following hardware was installed and integrated into the campus facilities: small wind turbine, large photovoltaic array that is grid-connected, two photovoltaic arrays, one thin film type, and one polycrystalline type, one dual-axis active tracker and one passive tracker, a hot air system for heating a small building, a portable hybrid photovoltaic system for remote power, and a hot water system to preheat water used in the SIPI Child Care facility. Educational curriculum has been developed for two renewable energy courses one being the study of energy production and use, and especially the roles renewable energy forms like solar, wind, geothermal, hydro, and biomass plays, and the second course being a more advanced in-depth study of renewable energy system design, maintenance, installation, and applications. Both courses rely heavily on experiential learning techniques so that installed renewable energy hardware is continuously utilized in hand-on laboratory activities and are part of the Electronics program of studies. Renewable energy technologies and science has also been included in other SIPI programs of study such as Environmental Science, Natural Resources, Agriculture, Engineering, Network Management, and Geospatial Technology.

  1. wind energy | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    wind energy NNSA chief visits New Mexico laboratories NNSA Administrator Lt. Gen. Frank Klotz (Ret.) visited NNSA's New Mexico laboratories last week. At Sandia National Laboratories (SNL) and Los Alamos National Laboratory (LANL), Klotz addressed the workforces of both labs on how the FY17 budget request supports NNSA's missions, and he got a first-... Pantex to Become Wind Energy Research Center

  2. An open source GIS tool to quantify the visual impact of wind turbines and photovoltaic panels

    SciTech Connect

    Minelli, Annalisa; Marchesini, Ivan; Taylor, Faith E.; De Rosa, Pierluigi; Casagrande, Luca; Cenci, Michele

    2014-11-15

    Although there are clear economic and environmental incentives for producing energy from solar and wind power, there can be local opposition to their installation due to their impact upon the landscape. To date, no international guidelines exist to guide quantitative visual impact assessment of these facilities, making the planning process somewhat subjective. In this paper we demonstrate the development of a method and an Open Source GIS tool to quantitatively assess the visual impact of these facilities using line-of-site techniques. The methods here build upon previous studies by (i) more accurately representing the shape of energy producing facilities, (ii) taking into account the distortion of the perceived shape and size of facilities caused by the location of the observer, (iii) calculating the possible obscuring of facilities caused by terrain morphology and (iv) allowing the combination of various facilities to more accurately represent the landscape. The tool has been applied to real and synthetic case studies and compared to recently published results from other models, and demonstrates an improvement in accuracy of the calculated visual impact of facilities. The tool is named r.wind.sun and is freely available from GRASS GIS AddOns. - Highlights: • We develop a tool to quantify wind turbine and photovoltaic panel visual impact. • The tool is freely available to download and edit as a module of GRASS GIS. • The tool takes into account visual distortion of the shape and size of objects. • The accuracy of calculation of visual impact is improved over previous methods.

  3. Pantex to Become Wind Energy Research Center | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration | (NNSA) Pantex to Become Wind Energy Research Center May 01, 2014 Officials from the National Nuclear Security Administration Production Office (NPO) and Texas Tech University (TTU) signed an agreement today that could pave the way for the Pantex Plant to become a leading force in the drive to increase use of renewable wind energy. File 2014-05-01 NPO Wind Research.docx NPO Press Releases September 2016 (1) August 2016 (1) May 2016 (1) February 2016 (1) January 2016 (1) March

  4. 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

  5. SUMMARY OF REVISED TORNADO, HURRICANE AND EXTREME STRAIGHT WIND CHARACTERISTICS AT NUCLEAR FACILITY SITES

    Office of Energy Efficiency and Renewable Energy (EERE)

    Summary of Revised Tornado, Hurricane and Extreme Straight Wind Characteristics at Nuclear Facility Sites BY: John D. Stevenson Consulting Engineer

  6. Optimization of Electric Power Systems for Off-Grid Domestic Applications: An Argument for Wind/Photovoltaic Hybrids

    SciTech Connect

    Jennings, W.; Green, J.

    2001-01-01

    The purpose of this research was to determine the optimal configuration of home power systems relevant to different regions in the United States. The hypothesis was that, regardless of region, the optimal system would be a hybrid incorporating wind technology, versus a photovoltaic hybrid system without the use of wind technology. The method used in this research was HOMER, the Hybrid Optimization Model for Electric Renewables. HOMER is a computer program that optimizes electrical configurations under user-defined circumstances. According to HOMER, the optimal system for the four regions studied (Kansas, Massachusetts, Oregon, and Arizona) was a hybrid incorporating wind technology. The cost differences between these regions, however, were dependent upon regional renewable resources. Future studies will be necessary, as it is difficult to estimate meteorological impacts for other regions.

  7. Analysis of the value of battery storage with wind and photovoltaic generation to the Sacramento Municipal Utility District

    SciTech Connect

    Zaininger, H.W. [Zaininger Engineering Co., Inc., Roseville, CA (United States)

    1998-08-01

    This report describes the results of an analysis to determine the economic and operational value of battery storage to wind and photovoltaic (PV) generation technologies to the Sacramento Municipal Utility District (SMUD) system. The analysis approach consisted of performing a benefit-cost economic assessment using established SMUD financial parameters, system expansion plans, and current system operating procedures. This report presents the results of the analysis. Section 2 describes expected wind and PV plant performance. Section 3 describes expected benefits to SMUD associated with employing battery storage. Section 4 presents preliminary benefit-cost results for battery storage added at the Solano wind plant and the Hedge PV plant. Section 5 presents conclusions and recommendations resulting from this analysis. The results of this analysis should be reviewed subject to the following caveat. The assumptions and data used in developing these results were based on reports available from and interaction with appropriate SMUD operating, planning, and design personnel in 1994 and early 1995 and are compatible with financial assumptions and system expansion plans as of that time. Assumptions and SMUD expansion plans have changed since then. In particular, SMUD did not install the additional 45 MW of wind that was planned for 1996. Current SMUD expansion plans and assumptions should be obtained from appropriate SMUD personnel.

  8. Optimum photovoltaic array size for a hybrid wind/PV system

    SciTech Connect

    Borowy, B.S.; Salameh, Z.M. . Dept. of Electrical Engineering)

    1994-09-01

    In this paper a methodology for calculation of the optimum size of a PV array for a stand-along hybrid wind/PV system is developed. Long term data of wind speed and irradiance recorded for every hour of the day for 30 years were used. These data were used to calculate the probability density functions of the wind speed and the irradiance for each hour of a typical day in a month. The wind speed and irradiance probability density functions and manufacturer's specification on a wind turbine and a PV module were used to calculate the average power generated by the wind turbine and the PV module for each hour of a typical day in a month. The least square method is used to determine the best fit of the PV array and wind turbine to a given load. On the basis of the energy concept an algorithm was developed to find the optimum size of the PV array in the system.

  9. Pantex Wind Farm Complete | National Nuclear Security Administration...

    National Nuclear Security Administration (NNSA)

    Pantex Wind Farm Complete June 18, 2014 Lt. Gen. (Ret.) Frank G. Klotz, Under Secretary ... largest federally owned wind farm Tuesday at the Pantex Plant near Amarillo, Texas. ...

  10. First wind turbine blade delivered to Pantex | National Nuclear...

    National Nuclear Security Administration (NNSA)

    owned wind farm in the country and will provide approximately 60 percent of the average annual electricity need for the Pantex Plant. First wind turbine blade delivered to Pantex

  11. 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 ...

  12. 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...

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

    SciTech Connect

    Yu-Ming Kuo; Yasuhiro Fukushima

    2009-03-15

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

  14. Guidelines for Solar and Wind Local Ordinances | Department of...

    Energy.gov [DOE] (indexed site)

    Solar Photovoltaics Wind (All) Wind (Small) Program Info Sector Name State State Virginia Program Type SolarWind Permitting Standards Summary In March 2011, the Virginia...

  15. Solar and Wind Rights | Department of Energy

    Energy.gov [DOE] (indexed site)

    - Passive Solar Water Heat Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Photovoltaics Wind (All) Wind (Small) Program Info Sector Name State State...

  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. A nuclear wind/solar oil-shale system for variable electricity and liquid fuels production

    SciTech Connect

    Forsberg, C.

    2012-07-01

    The recoverable reserves of oil shale in the United States exceed the total quantity of oil produced to date worldwide. Oil shale contains no oil, rather it contains kerogen which when heated decomposes into oil, gases, and a carbon char. The energy required to heat the kerogen-containing rock to produce the oil is about a quarter of the energy value of the recovered products. If fossil fuels are burned to supply this energy, the greenhouse gas releases are large relative to producing gasoline and diesel from crude oil. The oil shale can be heated underground with steam from nuclear reactors leaving the carbon char underground - a form of carbon sequestration. Because the thermal conductivity of the oil shale is low, the heating process takes months to years. This process characteristic in a system where the reactor dominates the capital costs creates the option to operate the nuclear reactor at base load while providing variable electricity to meet peak electricity demand and heat for the shale oil at times of low electricity demand. This, in turn, may enable the large scale use of renewables such as wind and solar for electricity production because the base-load nuclear plants can provide lower-cost variable backup electricity. Nuclear shale oil may reduce the greenhouse gas releases from using gasoline and diesel in half relative to gasoline and diesel produced from conventional oil. The variable electricity replaces electricity that would have been produced by fossil plants. The carbon credits from replacing fossil fuels for variable electricity production, if assigned to shale oil production, results in a carbon footprint from burning gasoline or diesel from shale oil that may half that of conventional crude oil. The U.S. imports about 10 million barrels of oil per day at a cost of a billion dollars per day. It would require about 200 GW of high-temperature nuclear heat to recover this quantity of shale oil - about two-thirds the thermal output of existing

  1. Solar and Wind Contractor Licensing | Department of Energy

    Energy.gov [DOE] (indexed site)

    < Back Eligibility InstallersContractors Savings Category Solar - Passive Solar Water Heat Solar Space Heat Solar Photovoltaics Wind (All) Wind (Small) Program Info Sector Name...

  2. 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.

  3. 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

  4. 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.

  5. 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)...

  6. 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...

  7. Wind Energy Technologies - Energy Innovation Portal

    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 Marketing ...

  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. 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,...

  12. Gross Receipts Tax Exemption for Sales of Wind and Solar Systems...

    Energy.gov [DOE] (indexed site)

    Photovoltaics Wind (All) Wind (Small) Program Info Sector Name State Administrator New Mexico Taxation & Revenue Department Website http:www.emnrd.state.nm.usECMD...

  13. 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.

  14. 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, ...

  15. 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 ...

  16. 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 ...

  17. 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...

  18. 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 ...

  19. 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 ...

  20. 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 ...

  1. Clark County- Solar and Wind Building Permit Guides

    Energy.gov [DOE]

    Clark County, Nevada has established guides for obtaining building permits for wind and solar photovoltaic (PV) systems for both residential and commercial purposes. The guides outline applicable...

  2. Supercomputing Model Provides Insights from Higher Wind and Solar...

    Energy.gov [DOE] (indexed site)

    tools to model, in unprecedented detail, how the power grid of the eastern United States could operationally accommodate higher levels of wind and solar photovoltaic generation. ...

  3. 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...

  4. 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.

  5. 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

  6. Wind vs. Biofuels: Addressing Climate, Health and Energy

    SciTech Connect

    Professor Mark Jacobson

    2007-01-29

    The favored approach today for addressing global warming is to promote a variety of options: biofuels, wind, solar thermal, solar photovoltaic, geothermal, hydroelectric, and nuclear energy and to improve efficiency. However, by far, most emphasis has been on biofuels. It is shown here, though, that current-technology biofuels cannot address global warming and may slightly increase death and illness due to ozone-related air pollution. Future biofuels may theoretically slow global warming, but only temporarily and with the cost of increased air pollution mortality. In both cases, the land required renders biofuels an impractical solution. Recent measurements and statistical analyses of U.S. and world wind power carried out at Stanford University suggest that wind combined with other options can substantially address global warming, air pollution mortality, and energy needs simultaneously.

  7. Wind versus Biofuels for Addressing Climate, Health, and Energy

    SciTech Connect

    Jacobson, Mark Z.

    2007-01-29

    The favored approach today for addressing global warming is to promote a variety of options: biofuels, wind, solar thermal, solar photovoltaic, geothermal, hydroelectric, and nuclear energy and to improve efficiency. However, by far, most emphasis has been on biofuels. It is shown here, though, that current-technology biofuels cannot address global warming and may slightly increase death and illness due to ozone-related air pollution. Future biofuels may theoretically slow global warming, but only temporarily and with the cost of increased air pollution mortality. In both cases, the land required renders biofuels an impractical solution. Recent measurements and statistical analyses of U.S. and world wind power carried out at Stanford University suggest that wind combined with other options can substantially address global warming, air pollution mortality, and energy needs simultaneously.

  8. 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...

  9. Wind Webinar Text Version | Department of Energy

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

    Text Version Wind Webinar Text Version Download the text version of the audio from the DOE Office of Indian Energy webinar on wind renewable energy. Text Version of the DOE Office of Indian Energy Foundational Course on Wind (172.73 KB) More Documents & Publications SERC Photovoltaics for Residential Buildings Webinar Transcript strategiesforsuccessfulenergymanagement.doc Biomass Webinar

  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. WINDExchange: Wind Energy Market Sectors

    WindExchange

    Market Sectors Printable Version Bookmark and Share Utility-Scale Wind Distributed Wind Motivations for Buying Wind Power Buying Wind Power Selling Wind Power Wind Energy Market Sectors U.S. power plants generate electricity for homes, factories, and businesses from a variety of resources, including coal, hydro, natural gas, nuclear, petroleum, and (non-hydro) renewable resources such as wind and solar energy. This power generation mix varies significantly across the country depending on

  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. 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...

  14. 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.

  15. 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 ...

  16. 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,...

  17. 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.

  18. 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, ...

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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

  4. 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

  5. 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

  6. 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

  7. Solar Photovoltaic System Design Basics | Department of Energy

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

    System Design Basics Solar Photovoltaic System Design Basics August 20, 2013 - 4:00pm Addthis Solar photovoltaic modules are where the electricity gets generated, but are only one of the many parts in a complete photovoltaic (PV) system. In order for the generated electricity to be useful in a home or business, a number of other technologies must be in place. Mounting Structures PV arrays must be mounted on a stable, durable structure that can support the array and withstand wind, rain, hail,

  8. 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 ...

  9. 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

  10. Lightweight, self-ballasting photovoltaic roofing assembly

    DOEpatents

    Dinwoodie, T.L.

    1998-05-05

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  11. Lightweight, self-ballasting photovoltaic roofing assembly

    DOEpatents

    Dinwoodie, Thomas L.

    1998-01-01

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  12. Lightweight, self-ballasting photovoltaic roofing assembly

    DOEpatents

    Dinwoodie, Thomas L.

    2006-02-28

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the pre-formed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  13. 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 ...

  14. 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 ...

  15. 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

  16. 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)

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

    Office of Scientific and Technical Information (OSTI)

    DOE Contract Number: FC36-07GO17043 Resource Type: Patent Research Org: SunPower Corporation (San Jose, CA) Sponsoring Org: USDOE Country of Publication: United States Language: ...

  18. 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...

  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. A high-entropy-wind r-process study based on nuclear-structure quantities from the new finite-range droplet model FRDM(2012)

    SciTech Connect

    Kratz, Karl-Ludwig; Farouqi, Khalil; Möller, Peter E-mail: kfarouqi@lsw.uni-heidelberg.de

    2014-09-01

    Attempts to explain the source of r-process elements in our solar system (S.S.) by particular astrophysical sites still face entwined uncertainties, stemming from the extrapolation of nuclear properties far from stability, inconsistent sources of different properties (e.g., nuclear masses and ?-decay properties), and the poor understanding of astrophysical conditions, which are hard to disentangle. In this paper we present results from the investigation of r-process in the high-entropy wind (HEW) of core-collapse supernovae (here chosen as one of the possible scenarios for this nucleosynthesis process), using new nuclear-data input calculated in a consistent approach, for masses and ?-decay properties from the new finite-range droplet model FRDM(2012). The accuracy of the new mass model is 0.56 MeV with respect to AME2003, to which it was adjusted. We compare the new HEW r-process abundance pattern to the latest S.S. r-process residuals and to our earlier calculations with the nuclear-structure quantities based on FRDM(1992). Substantial overall and specific local improvements in the calculated pattern of the r-process between A ? 110 and {sup 209}Bi, as well as remaining deficiencies, are discussed in terms of the underlying spherical and deformed shell structure far from stability.

  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. Review of PREPA Technical Requirements for Interconnecting Wind and Solar Generation

    SciTech Connect

    Gevorgian, Vahan; Booth, Sarah

    2013-11-01

    The Puerto Rico Electric Power Authority developed the minimum technical requirements for interconnection of wind turbine generation and photovoltaic power plants. NREL has conducted a review of these requirements based on generic technical aspects and electrical characteristics of wind and photovoltaic power plants, and on existing requirements from other utilities (both U.S. and European).

  18. 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,...

  19. 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...

  20. 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...

  1. 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)...

  2. 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

  3. West Winds Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Winds Wind Farm Jump to: navigation, search Name West Winds Wind Farm Facility West Winds Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  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. OAHU Wind Integration And Transmission Study: Summary Report...

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

    ... the technical requirements and ... from wind and photovoltaic generation. 8 HECO Grid Background and ... The Oahu system has a daily peak of about 1200 MW and a daily minimum ...

  6. Rosebud Sioux Tribes - Wind Development on the Rosebud

    Energy Saver

    ... such as small wind turbines and photovoltaic panels through grantloans. *Support ... Office Email: pvalandra@gwtc.net Phone: 605-747-2381, ext. 205 Cell Phone: 605-841-1065

  7. 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.

  8. 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...

  9. 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.

  10. 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.

  11. 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,...

  12. 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...

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. Microsoft PowerPoint - Sandia CREW 2013 Wind Plant Reliability...

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

    Nuclear Security Administration under contract DE-AC04-94AL85000. Wind Plant Reliability Benchmark September 2013 Continuous Reliability Enhancement for Wind (CREW)...

  20. 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. ...

  1. 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:...

  2. 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 ...

  3. Wind Integration

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

    Wind Generation - ScheduledActual Balancing Reserves - Deployed Near Real-time Wind Animation Wind Projects under Review Growth Forecast Fact Sheets Working together to address...

  4. Wind Energy Technologies Available for Licensing - Energy Innovation Portal

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

    Wind Energy 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 Marketing Summaries (22) Partners (27) Visual Patent Search Success Stories Browse Wind Energy Marketing Summaries Wind

  5. Prairie Winds Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Farm Jump to: navigation, search Name Prairie Winds Wind Farm Facility Prairie Winds Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  6. 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.

  7. 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,...

  8. 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,...

  9. 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.

  10. 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.

  11. 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 ...

  12. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. Wind Turbine Testing | Wind | NREL

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

    Wind Turbine Testing Photo of a large wind turbine blade sticking out of the structural testing laboratory; it is perpendicular to a building at the National Wind Technology Center. A multimegawatt wind turbine blade extends outside of the structural testing facility at the NWTC. PIX #19010 Testing capabilities at the National Wind Technology Center (NWTC) support the installation and testing of wind turbines that range in size from 400 watts to 5.0 megawatts. Engineers provide wind industry

  6. NREL: Hydrogen and Fuel Cells Research - Wind-to-Hydrogen Project

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

    Wind-to-Hydrogen Project Photo of person in hard hat working on equipment in a laboratory setting. NREL engineer inspects hydrogen-producing electrolyzer system at the National Wind Technology Center. Photo by Greg Martin, NREL Formed in partnership with Xcel Energy, NREL's wind-to-hydrogen (Wind2H2) demonstration project links wind turbines and photovoltaic (PV) arrays to electrolyzer stacks, which pass the generated electricity through water to split it into hydrogen and oxygen. The resulting

  7. Collegiate Wind Competition Wind Tunnel Specifications | Department...

    Energy Saver

    Wind Tunnel Specifications Collegiate Wind Competition Wind Tunnel Specifications Collegiate Wind Competition Wind Tunnel Specifications Teams competing in the U.S. Department of ...

  8. 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,

  9. 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

  10. explicit representation of uncertainty in wind generation

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

    wind generation - Sandia Energy Energy Search Icon Sandia ... Secure & Sustainable Energy Future Stationary Power Energy ... National Solar Thermal Test Facility Nuclear ...

  11. 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.

  12. 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 ...

  13. Wind Simulation

    Energy Science and Technology Software Center

    2008-12-31

    The Software consists of a spreadsheet written in Microsoft Excel that provides an hourly simulation of a wind energy system, which includes a calculation of wind turbine output as a power-curve fit of wind speed.

  14. 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.

  15. 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.

  16. 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

  17. 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.

  18. 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.

  19. 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

  20. 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.

  1. 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.

  2. 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 ...

  3. 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...

  4. 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 ...

  5. 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...

  6. 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...

  7. 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,...

  8. 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,...

  9. 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 ...

  10. 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....

  11. 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.

  12. 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.

  13. Wind Energy

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

    ... First Power for SWiFT Turbine Achieved during Recommissioning Facilities, News, Renewable Energy, SWIFT, Wind Energy, Wind News First Power for SWiFT Turbine Achieved during ...

  14. Wind News

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Laboratory PV Regional Test Centers Scaled Wind Farm Technology Facility Climate & Earth ...

  15. wind energy

    National Nuclear Security Administration (NNSA)

    5%2A en Pantex to Become Wind Energy Research Center http:nnsa.energy.govfieldofficesnponpopressreleasespantex-become-wind-energy-research-center

  16. Wind News

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Wind-turbine blade growth continues to have the largest impact on energy capture and ...

  17. Solar wind samples give insight into birth of solar system

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

    Department of Energy and Wind Easements & Rights Laws & Local Option Solar Rights Law Solar and Wind Easements & Rights Laws & Local Option Solar Rights Law < Back Eligibility Commercial Industrial Local Government Nonprofit Residential Schools State Government Federal Government Agricultural Institutional Savings Category Solar - Passive Solar Water Heat Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Photovoltaics Wind (All) Solar Pool Heating

  18. 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...

  19. 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...

  20. 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...

  1. 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...

  2. 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...

  3. 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...

  4. 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......

  5. 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 ...

  6. 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 ...

  7. 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 ...

  8. 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 ...

  9. 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 ...

  10. 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 ...

  11. 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 ...

  12. 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 ...

  13. 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 ...

  14. 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. ...

  15. 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) ...

  16. 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...

  17. 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: ...

  18. 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...

  19. 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,...

  20. 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 ...

  1. 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. ...

  2. 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 ...

  3. 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 ...

  4. 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 ...

  5. 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...

  6. 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...

  7. Wind Resource Assessment | Wind | NREL

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

    Wind Resource Assessment A map of the United States is color-coded to indicate the high winds at 80 meters. This map shows the wind resource at 80 meters for both land-based and ...

  8. Distributed Wind Research | Wind | NREL

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

    an introduction to distributed wind projects and a brief overview of topics to consider when developing a distributed wind energy ordinance. Distributed Wind Ordinances Photo from Byers and Renier Construction, NREL 18820 Distributed Wind Ordinances The U.S. Department of Energy defines distributed wind projects as: (a) The use of wind turbines, on- or off-grid, at homes, farms and ranches, businesses, public and industrial facilities, or other sites to offset all or a portion of the local

  9. Offshore Wind Research | Wind | NREL

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

    A photo of several rows of wind turbines standing in the ocean with the sun overhead. Capabilities NREL's offshore wind turbine research capabilities focus on critical areas that ...

  10. 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.

  11. 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)

  12. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. Photovoltaic array mounting apparatus, systems, and methods

    DOEpatents

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

    2014-12-02

    An apparatus for mounting a photovoltaic (PV) module on a surface, including a support with an upper surface, a lower surface, tabs, one or more openings, and a clip comprising an arm and a notch, where the apparatus resists wind forces and seismic forces and creates a grounding electrical bond between the PV module, support, and clip. The invention further includes a method for installing PV modules on a surface that includes arranging supports in rows along an X axis and in columns along a Y axis on a surface such that in each row the distance between two neighboring supports does not exceed the length of the longest side of a PV module and in each column the distance between two neighboring supports does not exceed the length of the shortest side of a PV module.

  20. Ballasted photovoltaic module and module arrays

    DOEpatents

    Botkin, Jonathan; Graves, Simon; Danning, Matt

    2011-11-29

    A photovoltaic (PV) module assembly including a PV module and a ballast tray. The PV module includes a PV device and a frame. A PV laminate is assembled to the frame, and the frame includes an arm. The ballast tray is adapted for containing ballast and is removably associated with the PV module in a ballasting state where the tray is vertically under the PV laminate and vertically over the arm to impede overt displacement of the PV module. The PV module assembly can be installed to a flat commercial rooftop, with the PV module and the ballast tray both resting upon the rooftop. In some embodiments, the ballasting state includes corresponding surfaces of the arm and the tray being spaced from one another under normal (low or no wind) conditions, such that the frame is not continuously subjected to a weight of the tray.

  1. Main Draft SEIS References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    ... Survey of the TVA Sequoyah Nuclear Power Plant, Hamilton County, Tennessee. March. ... NCDC (National Climatic Data Center) 2008. "Wind-Average Wind Speed (MPH)." Data through ...

  2. 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

  3. 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

  4. 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)

  5. Wind | NREL

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

    Wind Wind The U.S. wind energy industry continued its strong growth in 2015, adding new generating capacity faster than any other source of electricity generation. Get the latest update on the state of the industry in our 2015 Wind Market Reports. The U.S. wind energy industry continued its strong growth in 2015, adding new generating capacity faster than any other source of electricity generation. Get the latest update on the state of the industry in our 2015 Wind Market Reports. The United

  6. 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 ...

  7. 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 ...

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. Cisco Wind Energy Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cisco Wind Energy Wind Farm Jump to: navigation, search Name Cisco Wind Energy Wind Farm Facility Cisco Wind Energy Sector Wind energy Facility Type Commercial Scale Wind Facility...

  13. 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

  14. Wind Power

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

    Wind Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe ...

  15. Wind Farm

    Energy.gov [DOE]

    The wind farm in Greensburg, Kansas, was completed in spring 2010, and consists of ten 1.25 megawatt (MW) wind turbines that supply enough electricity to power every house, business, and municipal...

  16. Wind Easements

    Energy.gov [DOE]

    The statutes authorizing the creation of wind easements include several provisions to protect property owners. For example, a wind easement may not make the property owner liable for any property...

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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

  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. A prototype photovoltaic/thermal system integrated with transpired collector

    SciTech Connect

    Athienitis, Andreas K.; Bambara, James; O'Neill, Brendan; Faille, Jonathan

    2011-01-15

    Building-integrated photovoltaic/thermal (BIPV/T) systems may be utilized to produce useful heat while simultaneously generating electricity from the same building envelope surface. A well known highly efficient collector is the open-loop unglazed transpired collector (UTC) which consists of dark porous cladding through which outdoor air is drawn and heated by absorbed solar radiation. Commercially available photovoltaic systems typically produce electricity with efficiencies up to about 18%. Thus, it is beneficial to obtain much of the normally wasted heat from the systems, possibly by combining UTC with photovoltaics. Combination of BIPV/T and UTC systems for building facades is considered in this paper - specifically, the design of a prototype facade-integrated photovoltaic/thermal system with transpired collector (BIPV/T). A full scale prototype is constructed with 70% of UTC area covered with PV modules specially designed to enhance heat recovery and compared to a UTC of the same area under outdoor sunny conditions with low wind. The orientation of the corrugations in the UTC is horizontal and the black-framed modules are attached so as to facilitate flow into the UTC plenum. While the overall combined thermal efficiency of the UTC is higher than that of the BIPV/T system, the value of the generated energy - assuming that electricity is at least four times more valuable than heat - is between 7% and 17% higher. Also, the electricity is always useful while the heat is usually utilized only in the heating season. The BIPV/T concept is applied to a full scale office building demonstration project in Montreal, Canada. The ratio of photovoltaic area coverage of the UTC may be selected based on the fresh air heating needs of the building, the value of the electricity generated and the available building surfaces. (author)

  11. 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

  12. U.S. Distributed Wind Sector Finds Support from NREL

    SciTech Connect

    Sinclair, Karin

    2015-02-02

    Small and mid-sized wind turbine manufacturers in the United States have led the international distributed wind market in installed capacity for decades. Continued reductions in the cost of distributed wind systems are essential to successfully compete with currently economical photovoltaic systems. Annual capacity additions in 2013 were particularly low. In an effort to reduce the levelized cost of energy (LCOE) of distributed wind systems manufactured in the United States, the U.S. Department of Energy (DOE) has provided funding through the National Renewable Energy Laboratory (NREL) to support several projects.

  13. 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.

  14. 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.

  15. 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 ...

  16. 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, ...

  17. 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 ...

  18. 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.

  19. 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 ...

  20. Design and field performance of the KENETECH photovoltaic inverter system

    SciTech Connect

    Behnke, M.R.

    1995-11-01

    KENETECH Windpower has recently adapted the power conversion technology developed for the company`s variable speed wind turbine to grid-connected photovoltaic applications. KENETECH PV inverter systems are now in successful operation at the Sacramento Municipal Utility District`s (SMUD) Hedge Substation and the PVUSA-Davis site, with additional systems scheduled to be placed into service by the end of 1995 at SMUD, the New York Power Authority, Xerox Corporation`s Clean Air Now project, and the Georgia Tech Aquatic Center. The features of the inverter are described.

  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. 915-MHz Wind Profiler for Cloud Forecasting at Brookhaven National

    Office of Scientific and Technical Information (OSTI)

    Laboratory (Technical Report) | SciTech Connect 915-MHz Wind Profiler for Cloud Forecasting at Brookhaven National Laboratory Citation Details In-Document Search Title: 915-MHz Wind Profiler for Cloud Forecasting at Brookhaven National Laboratory When considering the amount of shortwave radiation incident on a photovoltaic solar array and, therefore, the amount and stability of the energy output from the system, clouds represent the greatest source of short-term (i.e., scale of minutes to

  4. 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.

  5. 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.

  6. 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 ...

  7. 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...

  8. 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...

  9. 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 ...

  10. 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 ...

  11. 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.

  12. 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.

  13. 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...

  14. 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)

  15. Wind Energy Projects | Department of Energy

    Energy.gov [DOE] (indexed site)

    Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy ...

  16. 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.

  17. Wind Power Forecasting Data

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

    Operations Call 2012 Retrospective Reports 2012 Retrospective Reports 2011 Smart Grid Wind Integration Wind Integration Initiatives Wind Power Forecasting Wind Projects Email...

  18. NREL: Wind Research - Wind Career Map Shows Wind Industry Career...

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

    Wind Career Map Shows Wind Industry Career Opportunities, Paths A screenshot of the wind career map showing the various points on a chart that show different careers in the wind...

  19. Wind News

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

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

  20. Offshore Wind

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

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

  1. wind turbines

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

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

  2. Wind Energy

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

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

  3. Wind Workshop

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

    Wind Workshop - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy ...

  4. 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

  5. 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

  6. 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

  7. Wind Power Partners '94 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    4 Wind Farm Jump to: navigation, search Name Wind Power Partners '94 Wind Farm Facility Wind Power Partners '94 Sector Wind energy Facility Type Commercial Scale Wind Facility...

  8. Wethersfield Wind Power Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wethersfield Wind Power Wind Farm Jump to: navigation, search Name Wethersfield Wind Power Wind Farm Facility Wethersfield Wind Power Sector Wind energy Facility Type Commercial...

  9. State Fair Wind Energy Education Center Wind Farm | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Fair Wind Energy Education Center Wind Farm Jump to: navigation, search Name State Fair Wind Energy Education Center Wind Farm Facility Wind Energy Education Center Sector Wind...

  10. Portsmouth Abbey School Wind Turbine Wind Farm | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Abbey School Wind Turbine Wind Farm Jump to: navigation, search Name Portsmouth Abbey School Wind Turbine Wind Farm Facility Portsmouth Abbey School Wind Turbine Sector Wind energy...

  11. Harbec Plastic Wind Turbine Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Harbec Plastic Wind Turbine Wind Farm Jump to: navigation, search Name Harbec Plastic Wind Turbine Wind Farm Facility Harbec Plastic Wind Turbine Sector Wind energy Facility Type...

  12. Stetson Wind Expansion Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Stetson Wind Expansion Wind Farm Jump to: navigation, search Name Stetson Wind Expansion Wind Farm Facility Stetson Wind Expansion Sector Wind energy Facility Type Commercial Scale...

  13. "EMM Region","PC","IGCC","PC","Conv. CT","Adv. CT","Conv. CC","Adv. CC","Adv. CC w/CCS","Fuel Cell","Nuclear","Biomass","MSW","On-shore Wind","Off-shore Wind","Solar Thermal","Solar PV"

    Energy Information Administration (EIA) (indexed site)

    Regional cost adjustments for technologies modeled by NEMS by Electric Market Modul (EMM) region 10,11" "EMM Region","PC","IGCC","PC","Conv. CT","Adv. CT","Conv. CC","Adv. CC","Adv. CC w/CCS","Fuel Cell","Nuclear","Biomass","MSW","On-shore Wind","Off-shore Wind","Solar Thermal","Solar PV" ,,,"w/CCS" "1

  14. Western Wind and Solar Integration Study: Executive Summary

    SciTech Connect

    none,

    2010-05-01

    This Study investigates the operational impact of up to 35% energy penetration of wind, photovoltaics (PVs), and concentrating solar power (CSP) on the power system operated by the WestConnect group of utilities in Arizona, Colorado, Nevada, New Mexico, and Wyoming.

  15. Western Wind and Solar Integration Study: Executive Summary

    Office of Energy Efficiency and Renewable Energy (EERE)

    This study investigates the operational impact of up to 35% energy penetration of wind, photovoltaics (PVs), and concentrating solar power (CSP) on the power system operated by the WestConnect group of utilities in Arizona, Colorado, Nevada, New Mexico, and Wyoming.

  16. 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

  17. 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.

  18. NREL: Wind Research - Offshore Wind Research

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

    NREL's Offshore Wind Testing Capabilities 35 years of wind turbine testing experience ... Testing Applying 35 years of wind turbine testing expertise, NREL has developed ...

  19. NREL: Wind Research - Offshore Wind Turbine Research

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

    Offshore Wind Turbine Research Photo of a European offshore wind farm. Photo by Siemens ... NREL's offshore wind turbine research capabilities focus on critical areas that reflect ...

  20. NREL: Wind Research - Offshore Wind Resource Characterization

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

    Wind Resource Characterization Map of the United States, showing the wind potential of offshore areas across the country. Enlarge image US offshore wind speed estimates at 90-m ...

  1. NREL: Wind Research - Wind Resource Assessment

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

    State Wind Maps International Wind Resource Maps Dynamic Maps, GIS Data, and Analysis Tools Due to the existence of special ... to anticipate wind generation levels and adjust the ...

  2. SUMMARY OF REVISED TORNADO, HURRICANE AND EXTREME STRAIGHT WIND...

    Office of Environmental Management (EM)

    Summary of Revised Tornado, Hurricane and Extreme Straight Wind Characteristics at Nuclear Facility Sites BY: John D. Stevenson Consulting Engineer PDF icon Summary of Revised ...

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. Danielson Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Danielson Wind Facility Danielson Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Juhl Wind...

  9. Kawailoa Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Kawailoa Wind Facility Kawailoa Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  10. Palouse Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Palouse Wind Facility Palouse Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  11. Harbor Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Harbor Wind Facility Harbor Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Harbor Wind LLC...

  12. Kahuku Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Kahuku Wind Jump to: navigation, search Name Kahuku Wind Facility Kahuku Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  13. Wiota Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wiota Wind Jump to: navigation, search Name Wiota Wind Facility Wiota Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Wiota Wind Energy LLC...

  14. Bravo Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Bravo Wind Jump to: navigation, search Name Bravo Wind Facility Bravo Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status Proposed Developer Bravo Wind LLC...

  15. Auwahi Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Auwahi Wind Jump to: navigation, search Name Auwahi Wind Facility Auwahi Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner BP Wind Energy...

  16. Traer Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Traer Wind Jump to: navigation, search Name Traer Wind Facility Traer Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Norsemen Wind Energy LLC...

  17. Sheffield Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Sheffield Wind Facility Sheffield Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  18. Rollins Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Rollins Wind Facility Rollins Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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)

  4. 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.

  5. 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.

  6. Wyoming Wind Power Project (generation/wind)

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

    Wind Power > Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Wyoming Wind Power Project (Foote Creek Rim I and II) Thumbnail image of wind...

  7. Solar and Wind Easements & Rights Laws & Local Option Solar Rights Law |

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

    Department of Energy and Wind Easements & Rights Laws & Local Option Solar Rights Law Solar and Wind Easements & Rights Laws & Local Option Solar Rights Law < Back Eligibility Commercial Industrial Local Government Nonprofit Residential Schools State Government Federal Government Agricultural Institutional Savings Category Solar - Passive Solar Water Heat Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Photovoltaics Wind (All) Solar Pool Heating

  8. Wildlife and Wind Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    the wind industry receives a lot of attention for avian impacts, research shows that nuclear and fossil-fueled plants have a greater impact. The Avian and Wildlife Costs of...

  9. Offshore Wind Power USA

    Energy.gov [DOE]

    The Offshore Wind Power USA conference provides the latest offshore wind market updates and forecasts.

  10. Western Wind and Solar Integration Study (Fact Sheet)

    SciTech Connect

    Not Available

    2012-09-01

    Initiated in 2007 to examine the operational impact of up to 35% penetration of wind, photovoltaic (PV), and concentrating solar power (CSP) energy on the electric power system, the Western Wind and Solar Integration Study (WWSIS) is one of the largest regional wind and solar integration studies to date. The goal is to understand the effects of variability and uncertainty of wind, PV, and CSP on the grid. In the Western Wind and Solar Integration Study Phase 1, solar penetration was limited to 5%. Utility-scale PV was not included because of limited capability to model sub-hourly, utility-scale PV output . New techniques allow the Western Wind and Solar Integration Study Phase 2 to include high penetrations of solar - not only CSP and rooftop PV but also utility-scale PV plants.

  11. 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.

  12. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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).

  18. Wind Energy Publications

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

    Lab Photovoltaic Systems Evaluation Laboratory PV Regional ... Facility Geomechanics and Drilling Labs National ... type"page" anchor"Offshore"Offshoreintlink ...

  19. Wind Farm Recommendation Report

    SciTech Connect

    John Reisenauer

    2011-05-01

    On April 21, 2011, an Idaho National Laboratory (INL) Land Use Committee meeting was convened to develop a wind farm recommendation for the Executive Council and a list of proposed actions for proceeding with the recommendation. In terms of land use, the INL Land Use Committee unanimously agrees that Site 6 is the preferred location of the alternatives presented for an INL wind farm. However, further studies and resolution to questions raised (stated in this report) by the INL Land Use Committee are needed for the preferred location. Studies include, but are not limited to, wind viability (6 months), bats (2 years), and the visual impact of the wind farm. In addition, cultural resource surveys and consultation (1 month) and the National Environmental Policy Act process (9 to 12 months) need to be completed. Furthermore, there is no documented evidence of developers expressing interest in constructing a small wind farm on INL, nor a specific list of expectations or concessions for which a developer might expect INL to cover the cost. To date, INL assumes the National Environmental Policy Act activities will be paid for by the Department of Energy and INL (the environmental assessment has only received partial funding). However, other concessions also may be expected by developers such as roads, fencing, power line installation, tie-ins to substations, annual maintenance, snow removal, access control, down-time, and remediation. These types of concessions have not been documented, as a request, from a developer and INL has not identified the short and long-term cost liabilities for such concessions should a developer expect INL to cover these costs. INL has not identified a go-no-go funding level or the priority this Wind Farm Project might have with respect to other nuclear-related projects, should the wind farm remain an unfunded mandate. The Land Use Committee recommends Legal be consulted to determine what, if any, liabilities exist with the Wind Farm Project and

  20. 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.

  1. WINDExchange: Selling Wind Power

    WindExchange

    Market Sectors Printable Version Bookmark and Share Utility-Scale Wind Distributed Wind Motivations for Buying Wind Power Buying Wind Power Selling Wind Power Selling Wind Power Owners of wind turbines interconnected directly to the transmission or distribution grid, or that produce more power than the host consumes, can sell wind power as well as other generation attributes. Wind-Generated Electricity Electricity generated by wind turbines can be used to cover on-site energy needs

  2. National Atmospheric Release Advisory Center | National Nuclear...

    National Nuclear Security Administration (NNSA)

    ... of potential incident sites to include nuclear power plants and fuel-cycle facilities. ... Mathematical calculations are used to arrive at wind representations, which are adjusted ...

  3. May 2014 | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Y-12 Press Release May 1, 2014 Pantex to Become Wind Energy Research Center Officials from the National Nuclear Security Administration Production Office (NPO) and Texas Tech...

  4. DOE/NREL supported wind energy activities in Indonesia

    SciTech Connect

    Drouilhet, S.

    1997-12-01

    This paper describes three wind energy related projects which are underway in Indonesia. The first is a USAID/Winrock Wind for Island and Nongovernmental Development (WIND) project. The objectives of this project are to train local nongovernmental organizations (NGOs) in the siting, installation, operation, and maintenance of small wind turbines. Then to install up to 20 wind systems to provide electric power for productive end uses while creating micro-enterprises which will generate enough revenue to sustain the wind energy systems. The second project is a joint Community Power Corporation/PLN (Indonesian National Electric Utility) case study of hybrid power systems in village settings. The objective is to evaluate the economic viability of various hybrid power options for several different situations involving wind/photovoltaics/batteries/diesel. The third project is a World Bank/PLN preliminary market assessment for wind/diesel hybrid systems. The objective is to estimate the size of the total potential market for wind/diesel hybrid power systems in Indonesia. The study will examine both wind retrofits to existing diesel mini-grids and new wind-diesel plants in currently unelectrified villages.

  5. Grid Integration of Offshore Wind | Wind | NREL

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

    Grid Integration of Offshore Wind Much can be learned from the existing land-based integration research for handling the variability and uncertainty of the wind resource. Photograph of a wind turbine in the ocean. Located about 10 kilometers off the coast of Arklow, Ireland, the Arklow Bank offshore wind park consists of seven GE Wind 3.6-MW wind turbines. Integration and Transmission One comprehensive grid integration study is the Eastern Wind Integration and Transmission Study (EWITS), in

  6. Wind Measurement Buoy Advances Offshore Wind Energy | Department...

    Energy Saver

    Measurement Buoy Advances Offshore Wind Energy Wind Measurement Buoy Advances Offshore Wind Energy December 7, 2015 - 1:52pm Addthis Wind Measurement Buoy Advances Offshore Wind ...

  7. Milford Wind Corridor Phase I (Clipper) Wind Farm | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Clipper) Wind Farm Jump to: navigation, search Name Milford Wind Corridor Phase I (Clipper) Wind Farm Facility Milford Wind Corridor Phase I (Clipper) Sector Wind energy Facility...

  8. 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.

  9. 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.

  10. 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.

  11. 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

  12. 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 &

  13. Michigan Wind II Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    II Wind Farm Jump to: navigation, search Name Michigan Wind II Wind Farm Facility Michigan Wind II Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  14. Metro Wind LLC Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind LLC Wind Farm Jump to: navigation, search Name Metro Wind LLC Wind Farm Facility Metro Wind LLC Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  15. JD Wind 6 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    JD Wind 6 Wind Farm Jump to: navigation, search Name JD Wind 6 Wind Farm Facility JD Wind 6 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  16. JD Wind 7 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    JD Wind 7 Wind Farm Jump to: navigation, search Name JD Wind 7 Wind Farm Facility JD Wind 7 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  17. 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

  18. 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

  19. 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

  20. 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

  1. 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.

  2. Garnet Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Garnet Wind Facility Garnet Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Azusa Light & Water...

  3. Lime Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Lime Wind Facility Lime Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Joseph Millworks Inc...

  4. Fairhaven Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Fairhaven Wind Facility Fairhaven Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Solaya Energy Palmer...

  5. Scituate Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Scituate Wind Facility Scituate Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Solaya Energy ...

  6. Pacific Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Pacific Wind Facility Pacific Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner enXco Developer...

  7. Galactic Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Galactic Wind Facility Galactic Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Epic Systems...

  8. Rockland Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Rockland Wind Facility Rockland Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Ridgeline...

  9. Greenfield Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump to: navigation, search Name Greenfield Wind Facility Greenfield Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Greenfield Wind Power...

  10. Willmar Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Willmar Wind Facility Willmar Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Willmar...

  11. 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.

  12. Wind Program News

    SciTech Connect

    2012-01-06

    Stay current on the news about the wind side of the Wind and Water Power Program and important wind energy events around the U.S.

  13. Energy 101: Wind Turbines

    ScienceCinema

    None

    2016-07-12

    See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine.

  14. Energy 101: Wind Turbines

    SciTech Connect

    2011-01-01

    See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine.

  15. 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...

  16. 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...

  17. 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...

  18. 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...

  19. 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...

  20. 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...

  1. 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 ...

  2. 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, ...

  3. 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...

  4. 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:...

  5. 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 ...

  6. 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.

  7. 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 ...

  8. 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.

  9. 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. ...

  10. 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 ...

  11. 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.

  12. 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 ...

  13. 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...

  14. 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...

  15. 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...

  16. 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...

  17. 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...

  18. 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 ...

  19. 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 ...

  20. 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...

  1. 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...

  2. 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 ...

  3. 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...

  4. 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.

  5. 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.

  6. 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 ...

  7. 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 ...

  8. 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...

  9. 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:...

  10. 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 ...

  11. 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 ...

  12. 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.

  13. Wind turbine

    DOEpatents

    Cheney, Jr., Marvin C.

    1982-01-01

    A wind turbine of the type having an airfoil blade (15) mounted on a flexible beam (20) and a pitch governor (55) which selectively, torsionally twists the flexible beam in response to wind turbine speed thereby setting blade pitch, is provided with a limiter (85) which restricts unwanted pitch change at operating speeds due to torsional creep of the flexible beam. The limiter allows twisting of the beam by the governor under excessive wind velocity conditions to orient the blades in stall pitch positions, thereby preventing overspeed operation of the turbine. In the preferred embodiment, the pitch governor comprises a pendulum (65,70) which responds to changing rotor speed by pivotal movement, the limiter comprising a resilient member (90) which engages an end of the pendulum to restrict further movement thereof, and in turn restrict beam creep and unwanted blade pitch misadjustment.

  14. 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...

  15. 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...

  16. 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...

  17. 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...

  18. 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...

  19. 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...

  20. 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:...

  1. 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...

  2. 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,...

  3. 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:...

  4. 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,...

  5. 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...

  6. 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...

  7. 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:...

  8. 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...

  9. 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:...

  10. 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...

  11. 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:...

  12. 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 ...

  13. 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: ...

  14. 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 ...

  15. 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, ...

  16. 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: ...

  17. 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 ...

  18. 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 ...

  19. 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 ...

  20. 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 ...

  1. 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 ...

  2. 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 ...

  3. 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 ...

  4. 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 ...

  5. 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 ...

  6. 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 ...

  7. 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. ...

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

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