Sample records for technologies photovoltaics small

  1. Photovoltaic Resources and Technologies

    Broader source: Energy.gov [DOE]

    This page provides a brief overview of photovoltaic (PV) technologies supplemented by specific information to apply PV within the Federal sector.

  2. Next-Generation Photovoltaic Technologies

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

    Next-Generation Photovoltaic Technologies Next-Generation Photovoltaic Technologies Print Monday, 06 February 2012 15:48 Organic solar cells based on the polymerfullerene bulk...

  3. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8846343 2012 MRS Fall Meeting; Symposium E, Photovoltaic Technologies, Devices and Systems Based on Inorganic Materials, Small

    E-Print Network [OSTI]

    Dietz, Nikolaus

    a superior potential for the development of high performance photovoltaic (PV) devices with reduced cost Meeting; Symposium E, Photovoltaic Technologies, Devices and Systems Based on Inorganic Materials, Small investigated for use in photovoltaic solar cells for the past years. At present, almost all photovoltaic device

  4. Photovoltaic technology development at Sandia National Laboratories

    SciTech Connect (OSTI)

    NONE

    1981-12-31T23:59:59.000Z

    This report describes the following investigations being pursued under photovoltaic technology development at Sandia National Laboratories: photovoltaic systems technology; concentrator technology; concentrator arrays and tracking structures; concentrator solar cell development; system engineering; subsystem development; and test and applications.

  5. The Solar Photovoltaics Technology Conflict between

    E-Print Network [OSTI]

    Deutch, John

    A Duel in the Sun The Solar Photovoltaics Technology Conflict between China and the United States A Duel in the Sun The Solar Photovoltaics Technology Conflict between China and the United States1 John domestically, and selling interna- tionally solar photovoltaic (PV) electricity- generating technology. Over

  6. Discovery Park Impact Network for Photovoltaic Technology

    E-Print Network [OSTI]

    Holland, Jeffrey

    Discovery Park Impact Network for Photovoltaic Technology NEED Discovery Park provides for Photovoltaic Technology (NPT). The NPT is designed to be a unique venue for industry-directed, university aims to become an international center of gravity for photovoltaic research that connects islands

  7. Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies

    E-Print Network [OSTI]

    Wang, Chunhua

    2011-01-01T23:59:59.000Z

    and V.U. Ho?mann. Photovoltaic Solar Energy Gen- eration.Concentrations for Photovoltaic Technologies A dissertationThirteenth IEEE Photovoltaic Specialists Conference- 1978—

  8. Recording of SERC Monitoring Technologies- Solar Photovoltaics

    Broader source: Energy.gov [DOE]

    This document provides a transcript of the of SERC Monitoring Technologies - Solar Photovoltaics webinar, presented on 10/20/2011 by Peter McNutt.

  9. Monitoring SERC Technologies — Solar Photovoltaics

    Broader source: Energy.gov [DOE]

    A webinar by National Renewable Energy Laboratory's Market Transformation Center electrical engineer Peter McNutt about Solar Photovoltaics and how to properly monitor its installation.

  10. Photovoltaic performance of ultra-small PbSe quantum dots

    E-Print Network [OSTI]

    Ma, Wanli

    2014-01-01T23:59:59.000Z

    Y; Alivisatos, AP, Photovoltaic Devices Employing TernaryPhotovoltaic performance of ultra-small PbSe quantum dotsquantum dot, solar cell, photovoltaic, quantum size effect

  11. Evaluation of the commercial potential of novel organic photovoltaic technologies

    E-Print Network [OSTI]

    Barr, Jonathan (Jonathan Allan)

    2005-01-01T23:59:59.000Z

    Photovoltaic cells based on organic semiconducting materials have the potential to compete with the more mature crystalline and thin film based photovoltaic technologies in the future primarily due to the expectation of ...

  12. Network for Photovoltaic TechnologyNEED IMPACT STATEMENT

    E-Print Network [OSTI]

    Ginzel, Matthew

    Network for Photovoltaic TechnologyNEED IMPACT STATEMENT INITIATIVE In early 2009, the Discovery graduate students have received several best poster and paper awards; A hub for photovoltaic research://nanohub.org/groups/PVWorkshop The NPT is becoming an international center for photovoltaic research to connect islands of excellence

  13. Research on advanced photovoltaic manufacturing technology

    SciTech Connect (OSTI)

    Jester, T.; Eberspacher, C. (Siemens Solar Industries, Camarillo, CA (United States))

    1991-11-01T23:59:59.000Z

    This report outlines opportunities for significantly advancing the scale and economy of high-volume manufacturing of high-efficiency photovoltaic (PV) modules. We propose to pursue a concurrent effort to advance existing crystalline silicon module manufacturing technology and to implement thin film CuInSe{sub 2} (CIS) module manufacturing. This combination of commercial-scale manufacturing of high-efficiency crystalline silicon modules and of pilot-scale manufacturing of low-cost thin film CIS technology will support continued, rapid growth of the US PV industry.

  14. Current Status of Concentrator Photovoltaic (CPV) Technology

    SciTech Connect (OSTI)

    Philipps, S. P.; Bett, A. W.; Horowitz, K.; Kurtz, S.

    2015-01-01T23:59:59.000Z

    This report describes the current status of the market and technology for concentrator photovoltaic (CPV) cells and modules. Significant progress in CPV has been achieved, including record efficiencies for modules (36.7%) and cells (46%), as well as growth of large field installations in recent years. CPV technology may also have the potential to be cost-competitive on a levelized cost of energy (LCOE) basis in regions of high direct normal irradiance (DNI). The study includes an overview of all installations larger than 1 MW, information on companies currently active in the CPV field, efficiency data, and estimates of the LCOE in different scenarios.

  15. Photovoltaics

    Broader source: Energy.gov [DOE]

    The SunShot Initiative aggressively supports development of low-cost, high-efficiency photovoltaic (PV) technologies in order to to make solar electricity cost-competitive with other sources of energy by 2020.

  16. High-Performance Home Technologies: Solar Thermal & Photovoltaic...

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

    in each of the volumes. High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems More Documents & Publications Building America Whole-House Solutions for...

  17. Photovoltaic Small-Scale Wastewater Treatment Project for Rural and New-Cultivated Areas in

    E-Print Network [OSTI]

    Fadia M. A. Ghali

    Abstract—The problem of wastewater treatment in Egypt is a two-fold problem; the first part concerning the existing rural areas, the second one dealing with new industrial/domestic areas. In Egypt several agricultural projects have been initiated by the government and the private sector as well, in order to change its infrastructure. As a reliable energy source, photovoltaic pumping systems have contributed to supply water for local rural communities worldwide; they can also be implemented to solve the problem “wastewater environment pollution”. The solution of this problem can be categorised as recycle process. In addition, because of regional conditions past technologies are being reexamined to select a smallscale treatment system requiring low construction and maintenance costs. This paper gives the design guidelines of a Photovoltaic Small-Scale Wastewater Treatment Plant (PVSSWTP) based on technologies that can be transferred. Keywords—Renewable energy sources, Photovoltaic, small-scale projects, wastewater treatment. I.

  18. 1990 DOE/SANDIA crystalline photovoltaic technology project review meeting

    SciTech Connect (OSTI)

    Ruby, D.S. (ed.)

    1990-07-01T23:59:59.000Z

    This document serves as the proceedings for the annual project review meeting held by Sandia's Photovoltaic Cell Research Division and Photovoltaic Technology Division. It contains information supplied by each organization making a presentation at the meeting, which was held August 7 through 9, 1990 at the Sheraton Hotel in Albuquerque, New Mexico. Sessions were held to discuss national photovoltaic programs, one-sun crystalline silicon cell research, concentrator silicon cell research, concentrator 3-5 cell research, and concentrating collector development.

  19. 1992 DOE/Sandia crystalline photovoltaic technology project review meeting

    SciTech Connect (OSTI)

    Maish, A. [ed.

    1992-07-01T23:59:59.000Z

    This document serves as the proceedings for the annual project review meeting held by Sandia National Laboratories` Photovoltaic Technology and Photovoltaic Evaluation Departments. It contains information supplied by organizations making presentations at the meeting, which was held July 14--15, 1992 at the Sheraton Old Town Hotel in Albuquerque, New Mexico. Overview sessions covered the Department of Energy (DOE) program, including those at Sandia and the National Renewable Energy Laboratory (NREL), and non-DOE programs, including the EPRI concentrator collector program, The Japanese crystalline silicon program, and some concentrating photovoltaic activities in Europe. Additional sessions included papers on Sandia`s Photovoltaic Device Fabrication Laboratory`s collaborative research, cell processing research, the activities of the participants in the Concentrator Initiative Program, and photovoltaic technology evaluation at Sandia and NREL.

  20. Photovoltaic Technology Basics | Department of Energy

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

    and devices convert sunlight into electrical energy, and PV cells are commonly known as solar cells. Photovoltaics can literally be translated as light-electricity. First used in...

  1. Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1

    Broader source: Energy.gov [DOE]

    On June 11, 2009, DOE announced the first round of Photovoltaic (PV) Supply Chain and Cross-Cutting Technologies awardees. The funded projects target manufacturing and product cost reduction with...

  2. Multijunction Photovoltaic Technologies for High-Performance Concentrators: Preprint

    SciTech Connect (OSTI)

    McConnell, R.; Symko-Davies, M.

    2006-05-01T23:59:59.000Z

    Multijunction solar cells provide high-performance technology pathways leading to potentially low-cost electricity generated from concentrated sunlight. The National Center for Photovoltaics at the National Renewable Energy Laboratory has funded different III-V multijunction solar cell technologies and various solar concentration approaches. Within this group of projects, III-V solar cell efficiencies of 41% are close at hand and will likely be reported in these conference proceedings. Companies with well-developed solar concentrator structures foresee installed system costs of $3/watt--half of today's costs--within the next 2 to 5 years as these high-efficiency photovoltaic technologies are incorporated into their concentrator photovoltaic systems. These technology improvements are timely as new large-scale multi-megawatt markets, appropriate for high performance PV concentrators, open around the world.

  3. The Polyx photovoltaic technology: progress and prospects J. Fally (*), E. Fabre (**) and B. Chabot (***)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    529 The Polyx photovoltaic technology: progress and prospects J. Fally (*), E. Fabre (**) and B photovoltaic technologies due to its present industrial state and its possible improvements related to costs of this technology. A description and an analysis of photovoltaic markets well suited to this technology are given

  4. A survey of thin-film solar photovoltaic industry & technologies

    E-Print Network [OSTI]

    Grama, Sorin

    2007-01-01T23:59:59.000Z

    A new type of solar cell technology using so-called thin-film solar photovoltaic material has the potential to make a great impact on our lives. Because it uses very little or no silicon at all, thin- film (TF) solar ...

  5. Photovoltaic Manufacturing Technology, Phase 1, Final report

    SciTech Connect (OSTI)

    Easoz, J.R.; Herlocher, R.H. (Westinghouse Electric Corp., Pittsburgh, PA (United States))

    1991-12-01T23:59:59.000Z

    This report examines the cost-effective manufacture of dendritic-web-based photovoltaic modules. It explains how process changes can increase production and reduce manufacturing costs. Long-range benefits of these improved processes are also discussed. Problems are identified that could impede increasing production and reducing costs; approaches to solve these problems are presented. These approaches involve web growth throughput, cell efficiency, process yield, silicon use, process control, automation, and module efficiency. Also discussed are the benefits of bifacial module design, unique to the dendritic web process.

  6. Photovoltaic-Thermal New Technology Demonstration

    SciTech Connect (OSTI)

    Dean, J.; McNutt, P.; Lisell, L.; Burch, J.; Jones, D.; Heinicke, D.

    2015-01-01T23:59:59.000Z

    Photovoltaic-thermal (PV-T) hybrid solar systems offer increased electricity production by cooling the PV panel, and using the removed thermal energy to heat water - all in the same footprint as a standard PV system. GPG's assessment of the nation's first large-scale PV-T system installed at the Thomas P. O'Neill, Jr. Federal Building in Boston, MA, provided numerous lessons learned in system design, and identified a target market of locations with high utility costs and electric hot water backup.

  7. Photovoltaic Resources and Technologies | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSalesOE0000652GrowE-mail onThe Mirror FusionPhotovoltaic

  8. Solar Photovoltaic Technologies - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future | Department ofSolarSolar FuelsPhotovoltaic

  9. Current Status of Concentrator Photovoltaic (CPV) Technology

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

    (CPV) technology has recently entered the market as a utility- scale option for the generation of solar electricity. This report explores the current status of CPV technology...

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

    Open Energy Info (EERE)

    teaches the viewer about photovoltaic arrays and RETscreen's photovoltaic module, which can be used to project the cost and production of an array. An...

  11. Flexible photovoltaic technologies Qingfeng Lin,a

    E-Print Network [OSTI]

    nanostructures, and the applications of func- tional nanomaterials for energy harvesting, energy storage Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China. E

  12. Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies

    E-Print Network [OSTI]

    Wang, Chunhua

    2011-01-01T23:59:59.000Z

    and V.U. Ho?mann. Photovoltaic Solar Energy Gen- eration.stacked LSC plates for photovoltaics with the green LSC onsolar concentra- tors for photovoltaics. Science, 321(5886):

  13. The photovoltaic manufacturing technology project: A government/industry partnership

    SciTech Connect (OSTI)

    Mitchell, R.L.; Witt, C.E.; Mooney, G.D.

    1991-12-01T23:59:59.000Z

    The Photovoltaic Manufacturing Technology (PVMaT) project is a government/industry photovoltaic manufacturing research and development (R&D) project composed of partnerships between the federal government (through the US Department of Energy) and members of the US photovoltaic (PV) industry. It is designed to assist the US PV industry in improving manufacturing processes, accelerating manufacturing cost reductions for PV modules, increasing commercial product performance, and generally laying the groundwork for a substantial scale-up of US-based PV manufacturing plant capabilities. The project is being carried out in three separate phases, each focused on a specific approach to solving the problems identified by the industrial participants. These participants are selected through competitive procurements. Furthermore, the PVMaT project has been specifically structured to ensure that these PV manufacturing R&D subcontract awards are selected with no intention of either directing funding toward specific PV technologies (e.g., amorphous silicon, polycrystalline thin films, etc.), or spreading the awards among a number of technologies (e.g., one subcontract in each area). Each associated subcontract under any phase of this project is, and will continue to be, selected for funding on its own technical and cost merits. Phase 1, the problem identification phase, was completed early in 1991. Phase 2 is now under way. This is the solution phase of the project and addresses problems of specific manufacturers. The envisioned subcontracts under Phase 2 may be up to three years in duration and will be highly cost-shared between the US government and US industrial participants. Phase 3, is also under way. General issues related to PV module development will be studied through various teaming arrangements. 25 refs.

  14. Photovoltaic concentrator technology development project. Sixth project integration meeting

    SciTech Connect (OSTI)

    None

    1980-10-01T23:59:59.000Z

    Thirty-three abstracts and short papers are presented which describe the current status of research, development, and demonstration of concentrator solar cell technology. Solar concentrators discussed include the parabolic trough, linear focus Fresnel lens, point focus Fresnel lens, and the parabolic dish. Solar cells studied include silicon, GaAs, and AlGaAs. Research on multiple junction cells, combined photovoltaic/thermal collectors, back contact solar cells, and beam splitter modules is described. Concentrator solar cell demonstration programs are reported. Contractor status summaries are given for 33 US DOE concentrator solar cell contracts; a description of the project, project status, and key results to date is included. (WHK)

  15. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation Into Photovoltaic Technology For

    E-Print Network [OSTI]

    Into Photovoltaic Technology For The New Student Union Building Peter Choi, Tamer Kalla, Tony Lin University; AN INVESTIGATION INTO PHOTOVOLTAIC TECHNOLOGY FOR THE NEW STUDENT UNIONION BUILDING Peter Choi Tamer Kalla Tony ....................................................................................................................... 1 2.0 COST ANALYSIS OF ENERGY SOURCES

  16. Solar capabilities : promoting, technological learning in South Africa's photovoltaic supply industry

    E-Print Network [OSTI]

    Wright, Janelle N., 1978-

    2003-01-01T23:59:59.000Z

    I explore the mechanisms through which technological capabilities have been built in the market for photovoltaic (PV) module and balance of system (BOS) manufacture in South Africa. Drawing on the literature on technology ...

  17. Overview of the Photovoltaic Manufacturing Technology (PVMaT) project

    SciTech Connect (OSTI)

    Witt, C.E.; Mitchell, R.L.; Mooney, G.D.

    1993-08-01T23:59:59.000Z

    The Photovoltaic Manufacturing Technology (PVMaT) project is a historic government/industry photovoltaic (PV) manufacturing R&D partnership composed of joint efforts between the federal government (through the US Department of Energy) and members of the US PV industry. The project`s ultimate goal is to ensure that the US industry retains and extends its world leadership role in the manufacture and commercial development of PV components and systems. PVMaT is designed to do this by helping the US PV industry improve manufacturing processes, accelerate manufacturing cost reductions for PV modules, improve commercial product performance, and lay the groundwork for a substantial scale-up of US-based PV manufacturing capacities. Phase 1 of the project, the problem identification phase, was completed in early 1991. Phase 2, the problem solution phase, which addresses process-specific problems of specific manufacturers, is now underway with an expected duration of 5 years. Phase 3 addresses R&D problems that are relatively common to a number of PV companies or the PV industry as a whole. These ``generic`` problem areas are being addressed through a teamed research approach.

  18. A pulse-width modulated, high reliability charge controller for small photovoltaic systems

    SciTech Connect (OSTI)

    Gerken, K. [Morningstar Corp., Olney, MD (United States); Welsh, D. [Morningstar Corp., Encinitas, CA (United States)

    1997-02-01T23:59:59.000Z

    This report presents the results of a development effort to design, test and begin production of a new class of small photovoltaic (PV) charge controllers. Sandia National Laboratories provided technical support, test data and financial support through a Balance-of-System Development contract. One of the objectives of the development was to increase user confidence in small PV systems by improving the reliability and operating life of the system controllers. Another equally important objective was to improve the economics of small PV systems by extending the battery lifetimes. Using new technology and advanced manufacturing techniques, these objectives were accomplished. Because small stand-alone PV systems account for over one third of all PV modules shipped, the positive impact of improving the reliability and economics of PV systems in this market segment will be felt throughout the industry. The results of verification testing of the new product are also included in this report. The initial design goals and specifications were very aggressive, but the extensive testing demonstrates that all the goals were achieved. Production of the product started in May at a rate of 2,000 units per month. Over 40 Morningstar distributors (5 US and 35 overseas) have taken delivery in the first 2 months of shipments. Initial customer reactions to the new controller have been very favorable.

  19. Experience Scaling Up Manufacturing of Emerging Photovoltaic Technologies

    SciTech Connect (OSTI)

    Braun, G. W.; Skinner, D. E.

    2007-01-01T23:59:59.000Z

    This report examines two important generic photovoltaic technologies at particularly revealing stages of development, i.e., the stages between R&D and stable commercial production and profitable sales. Based on two historical cases, it attempts to shed light on the difference between: (1) costs and schedules validated by actual manufacturing and market experience, and (2) estimated costs and schedules that rely on technology forecasts and engineering estimates. The amorphous Silicon case also identifies some of the costs that are incurred in meeting specific market requirements, while the Cadmium Telluride case identifies many of the operational challenges involved in transferring R&D results to production. The transition between R&D and commercial success takes a great deal of time and money for emerging energy conversion technologies in general. The experience reported here can be instructive to those managing comparable efforts, and to their investors. It can also be instructive to R&D managers responsible for positioning such new technologies for commercial success.

  20. The Photovoltaic Manufacturing Technology Project: Phase 1 subcontractors

    SciTech Connect (OSTI)

    Not Available

    1992-07-01T23:59:59.000Z

    The Phase I portion of the Photovoltaic Manufacturing Technology (PVMaT) Project, the problem identification phase, was completed in mid-1991. This work involved competitive bidding that was open to any US firm with existing manufacturing capabilities, regardless of material or module design. In early 1991, subcontracts were awarded to 22 of approximately 40 bidders. Each subcontract was funded at a level of up to $50,000 and a duration of three months. The problems identified by the research in this phase of the program represent opportunities for industrial participants to improve their manufacturing processes, reduce manufacturing costs, increase product performance, or develop a foundation for scaling up US-based manufacturing plant capacities. Many of these opportunities have since been detailed in the approaches that these organizations suggested for Phase 2 (the problem solution phase) research and development (R&D). It is not. anticipated that any additional Phase I solicitation will be issued because Phase I was intended to help the US Department of Energy (DOE) characterize the status and needs of the US photovoltaic (PV) industry and encourage the industry to examine and prioritize required manufacturing line improvements. Phase I subcontracted research included five subcontractors working on flat-plate crystalline silicon technology, eleven working on flat-plate thin-film modules (one in thin-film crystalline silicon, six in amorphous silicon. and four in polycrystalline thin films), six working on concentrator systems, and two working on general equipment/production options. (Two of the participants each worked in two areas).

  1. The Photovoltaic Manufacturing Technology Project: Phase 1 subcontractors

    SciTech Connect (OSTI)

    Not Available

    1992-07-01T23:59:59.000Z

    The Phase I portion of the Photovoltaic Manufacturing Technology (PVMaT) Project, the problem identification phase, was completed in mid-1991. This work involved competitive bidding that was open to any US firm with existing manufacturing capabilities, regardless of material or module design. In early 1991, subcontracts were awarded to 22 of approximately 40 bidders. Each subcontract was funded at a level of up to $50,000 and a duration of three months. The problems identified by the research in this phase of the program represent opportunities for industrial participants to improve their manufacturing processes, reduce manufacturing costs, increase product performance, or develop a foundation for scaling up US-based manufacturing plant capacities. Many of these opportunities have since been detailed in the approaches that these organizations suggested for Phase 2 (the problem solution phase) research and development (R D). It is not. anticipated that any additional Phase I solicitation will be issued because Phase I was intended to help the US Department of Energy (DOE) characterize the status and needs of the US photovoltaic (PV) industry and encourage the industry to examine and prioritize required manufacturing line improvements. Phase I subcontracted research included five subcontractors working on flat-plate crystalline silicon technology, eleven working on flat-plate thin-film modules (one in thin-film crystalline silicon, six in amorphous silicon. and four in polycrystalline thin films), six working on concentrator systems, and two working on general equipment/production options. (Two of the participants each worked in two areas).

  2. Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources. In the current power

    E-Print Network [OSTI]

    Tolbert, Leon M.

    Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources in pollution [1]. The most well-known green technologies include photovoltaics and wind turbines. Although fuel, fuel cells and photovoltaics, produce direct current (DC). Currently, power system infrastructures

  3. Small Business Innovation Research and Small Business Technology Transfer

    Broader source: Energy.gov [DOE]

    The DOE Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) programs are highly competitive opportunities that encourage U.S.-based small businesses to engage in...

  4. High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems

    SciTech Connect (OSTI)

    Baechler, M.; Gilbride, T.; Ruiz, K.; Steward, H.; Love, P.

    2007-06-01T23:59:59.000Z

    This document is the sixth volume of the Building America Best Practices Series. It presents information that is useful throughout the United States for enhancing the energy efficiency practices in the specific climate zones that are presented in the first five Best Practices volumes. It provides an introduction to current photovoltaic and solar thermal building practices. Information about window selection and shading is included.

  5. High Penetration, Grid Connected Photovoltaic Technology Codes and Standards: Preprint

    SciTech Connect (OSTI)

    Basso, T. S.

    2008-05-01T23:59:59.000Z

    This paper reports the interim status in identifying and reviewing photovoltaic (PV) codes and standards (C&S) and related electrical activities for grid-connected, high-penetration PV systems with a focus on U.S. electric utility distribution grid interconnection.

  6. Energy Policy 30 (2002) 477499 Photovoltaic module quality in

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Energy Policy 30 (2002) 477­499 Photovoltaic module quality in the Kenyan solar home systems market purchases of clean decentralized photovoltaic technologies. Small amorphous-silicon modules dominate. This article analyzes market failure associated with photovoltaic module quality in the Kenyan SHS market

  7. Progress of the Photovoltaic Technology Incubator Project Towards an Enhanced U.S. Manufacturing Base: Preprint

    SciTech Connect (OSTI)

    Ullal, H.; Mitchell, R.; Keyes, B.; VanSant, K.; von Roedern, B.; Symko-Davies, M.; Kane, V.

    2011-07-01T23:59:59.000Z

    In this paper, we report on the major accomplishments of the U.S. Department of Energy's (DOE) Solar Energy Technologies Program (SETP) Photovoltaic (PV) Technology Incubator project. The Incubator project facilitates a company's transition from developing a solar cell or PV module prototype to pilot- and large-scale U.S. manufacturing. The project targets small businesses that have demonstrated proof-of-concept devices or processes in the laboratory. Their success supports U.S. Secretary of Energy Steven Chu's SunShot Initiative, which seeks to achieve PV technologies that are cost-competitive without subsidies at large scale with fossil-based energy sources by the end of this decade. The Incubator Project has enhanced U.S. PV manufacturing capacity and created more than 1200 clean energy jobs, resulting in an increase in American economic competitiveness. The investment raised to date by these PV Incubator companies as a result of DOE's $ 59 million investment totals nearly $ 1.3 billion.

  8. Polycrystalline thin-film technology: Recent progress in photovoltaics

    SciTech Connect (OSTI)

    Mitchell, R.L.; Zweibel, K.; Ullal, H.S.

    1991-12-01T23:59:59.000Z

    Polycrystalline thin films have made significant technical progress in the past year. Three of these materials that have been studied extensively for photovoltaic (PV) power applications are copper indium diselenide (CuInSe{sub 2}), cadmium telluride (CdTe), and thin-film polycrystalline silicon (x-Si) deposited on ceramic substrates. The first of these materials, polycrystalline thin-film CuInSe{sub 2}, has made some rapid advances in terms of high efficiency and long-term reliability. For CuInSe{sub 2} power modules, a world record has been reported on a 0.4-m{sup 2} module with an aperture-area efficiency of 10.4% and a power output of 40.4 W. Additionally, outdoor reliability testing of CuInSe{sub 2} modules, under both loaded and open-circuit conditions, has resulted in only minor changes in module performance after more than 1000 days of continuous exposure to natural sunlight. CdTe module research has also resulted in several recent improvements. Module performance has been increased with device areas reaching nearly 900 cm{sup 2}. Deposition has been demonstrated by several different techniques, including electrodeposition, spraying, and screen printing. Outdoor reliability testing of CdTe modules was also carried out under both loaded and open-circuit conditions, with more than 600 days of continuous exposure to natural sunlight. These tests were also encouraging and indicated that the modules were stable within measurement error. The highest reported aperture-area module efficiency for CdTe modules is 10%; the semiconductor material was deposited by electrodeposition. A thin-film CdTe photovoltaic system with a power output of 54 W has been deployed in Saudi Arabia for water pumping. The Module Development Initiative has made significant progress in support of the Polycrystalline Thin-Film Program in the past year, and results are presented in this paper.

  9. FUEL CELL TECHNOLOGIES PROGRAM Small Business

    E-Print Network [OSTI]

    FUEL CELL TECHNOLOGIES PROGRAM Small Business Innovation Research (SBIR) Award Success Story Fuel up to 90 MW per year with full utilization. FuelCell Energy has received Small Business Innovation compression at fueling stations. However in the short term, EHCs can be used to compress hydro

  10. FUEL CELL TECHNOLOGIES PROGRAM Small Business

    E-Print Network [OSTI]

    FUEL CELL TECHNOLOGIES PROGRAM Small Business Innovation Research (SBIR) Award Success Story Proton Energy Systems Proton Energy Systems is a suc- cessful small business specializing in clean production that can be coupled with HOGEN RE® hydrogen generators are wind, solar, hydro, and wave power. Proton

  11. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01T23:59:59.000Z

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

  12. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-06-01T23:59:59.000Z

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

  13. Performance and Analysis of Photovoltaic (PV)Technologies

    E-Print Network [OSTI]

    HAWAI`I NATURAL ENERGY INSTITUTE School of Ocean & Earth Science & Technology ­ University of Hawai was submitted by HNEI to the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability for the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative

  14. Building America Best Practices Series, Volume 6: High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems

    SciTech Connect (OSTI)

    Baechler, Michael C.; Gilbride, Theresa L.; Ruiz, Kathleen A.; Steward, Heidi E.; Love, Pat M.

    2007-06-04T23:59:59.000Z

    This guide is was written by PNNL for the US Department of Energy's Building America program to provide information for residential production builders interested in building near zero energy homes. The guide provides indepth descriptions of various roof-top photovoltaic power generating systems for homes. The guide also provides extensive information on various designs of solar thermal water heating systems for homes. The guide also provides construction company owners and managers with an understanding of how solar technologies can be added to their homes in a way that is cost effective, practical, and marketable. Twelve case studies provide examples of production builders across the United States who are building energy-efficient homes with photovoltaic or solar water heating systems.

  15. Nantong Qiangsheng Photovoltaic Technology Co Ltd QS Solar | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte3Informationof Energy Calculator29NanoPVNanowin Technology

  16. DOE Office of Science Funded Basic Research at NREL that Impacts Photovoltaic Technologies

    SciTech Connect (OSTI)

    Deb, S. K.

    2005-01-01T23:59:59.000Z

    The DOE Office of Science, Basic Energy Sciences, supports a number of basic research projects in materials, chemicals, and biosciences at the National Renewable Energy Laboratory (NREL) that impact several renewable energy technologies, including photovoltaics (PV). The goal of the Material Sciences projects is to study the structural, optical, electrical, and defect properties of semiconductors and related materials using state-of-the-art experimental and theoretical techniques. Specific projects involving PV include: ordering in III-V semiconductors, isoelectronic co-doping, doping bottlenecks in semiconductors, solid-state theory, and computational science. The goal of the Chemical Sciences projects is to advance the fundamental understanding of the relevant science involving materials, photochemistry, photoelectrochemistry, nanoscale chemistry, and catalysis that support solar photochemical conversion technologies. Specific projects relating to PV include: dye-sensitized TiO2 solar cells, semiconductor nanostructures, and molecular semiconductors. This presentation will give an overview of some of the major accomplishments of these projects.

  17. SMALL TURBOGENERATOR TECHNOLOGY FOR DISTRIBUTED GENERATION

    SciTech Connect (OSTI)

    Sy Ali; Bob Moritz

    2001-09-01T23:59:59.000Z

    This report is produced in under Contract DE-FC26-00NT40914, awarded in accordance with U.S. Department of Energy solicitation DE-PS26-00FT40759, ''Development of Technologies and Capabilities for Fossil Energy-Wide Coal, Natural Gas and Oil R&D Programs'', area of interest 7, ''Advanced Turbines and Engines.'' As a result of ten years of collaborative fuel cell systems studies with U.S. fuel cell manufacturers, initiated to evaluate the gas turbine opportunities likely to result from this technology, Rolls-Royce in Indianapolis has established a clear need for the creation of a turbogenerator to a specification that cannot be met by available units. Many of the required qualities are approached, but not fully met, by microturbines, which tend to be too small and low in pressure ratio. Market evaluation suggests a 1 MW fuel cell hybrid, incorporating a turbogenerator of about 250 kW, is a good market entry product (large enough to spread the costs of a relatively complex plant, but small enough to be acceptable to early adopters). The fuel cell stack occupies the position of a combustor in the turbogenerator, but delivers relatively low turbine entry temperature (1600 F [870 C]). If fitted with a conventional combustor and run stand-alone at full uncooled turbine temperature (1800 F [980 C]), the turbogenerator will develop more power. The power can be further enhanced if the turbogenerator is designed to have flow margin in its fuel cell role (by running faster). This margin can be realized by running at full speed and it is found that power can be increased to the 0.7 to 1.0 MW range, depending on initial fuel cell stack flow demand. The fuel cell hybrid applications require increased pressure ratio (at least 6 rather than the 3-4 of microturbines) and very long life for a small machine. The outcome is a turbogenerator that is very attractive for stand-alone operation and has been the subject of unsolicited enthusiasm from potential users who see an application in grid support. The machine is consistent with 21st century power generation objectives. It will be more efficient than a microturbine and also more cost effective because it does not require an expensive recuperator. It will produce ultra-low emissions because it has a low combustor delivery temperature. It will also avoid producing hazardous waste because it requires no lube system. These qualities are obtained by combining, and in some instances extending, the best of available technologies rather than breaking wholly new ground. Limited ''barrier technology'' rig tests of bearing systems and alternator configuration are proposed to support the extension of technology. Low combustion temperature also has merit in handling alternative fuels with minimum emissions and minimum materials degradation. Program continuation is proposed that will simultaneously provide technology support to a SECA fuel cell hybrid system and a distributed generation turbogenerator. This technology program will be led by a Rolls-Royce team based in Indianapolis with access to extensive small turbogenerator experience gathered in DOE (and other) programs by Allison Mobile Power Systems. It is intended that subsequent production will be in the U.S., but the products may have substantial export potential.

  18. Small Hydropower Research and Development Technology Project

    SciTech Connect (OSTI)

    Blackmore, Mo [Near Space Systems, Inc.] [Near Space Systems, Inc.

    2013-12-06T23:59:59.000Z

    The objective of this work was to investigate, develop, and validate the next generation of small hydroturbine generator designs that maximize the energy transfer from flowing water to electrical power generation. What resulted from this effort was the design of a new technology hydroturbine that Near Space Systems (NSS) has named the Star*Stream© Hydroturbine. Using a design that eliminates nearly all of the shortfalls of conventional hydroturbines, the Star*Stream© Hydroturbine employs a new mechanical-to-electrical energy transfer hydro design that operates without lubrication of any kind, and does not introduce foreign chemicals or particulate matter from oil or drive shaft seal degradation into the hydro ecology. In its unique configuration, the Star*Stream© Hydroturbine is nearly environmentally inert, without the negative aspects caused by interrupting the ecological continuity, i.e., disruptions to sedimentation, water quality, habitat changes, human displacement, fish migration, etc., - while it ensures dramatically reduced timeframes to project completion. While a remarkable reduction in LCOE resulting from application of the Star*Stream© Hydroturbine technology has been the core achievement of the this effort, there have been numerous technological breakthroughs from the development effort.

  19. Metallic nanostructures for optoelectronic and photovoltaic applications

    E-Print Network [OSTI]

    Lim, Swee Hoe

    2009-01-01T23:59:59.000Z

    photovoltaics deployment, such technologies will reach their fundamental limitation in terms of efficiency,

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

    SciTech Connect (OSTI)

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

    2012-04-01T23:59:59.000Z

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

  1. Local government guide to the emerging technologies of cogeneration and photovoltaics. Energy technology report of the energy task force of the urban consortium

    SciTech Connect (OSTI)

    None

    1980-01-01T23:59:59.000Z

    An overview of cogeneration and photovoltaics systems is presented to provide local government managers a basic understanding of the technologies. Issues and considerations associated with applications are presented. Discussions cover installation and maintenance requirements, equipment availability, costs, and risks/benefits. Data describing demonstration sites and contacts for further information are provided. (MCW)

  2. Lab Breakthrough: Microelectronic Photovoltaics

    Broader source: Energy.gov [DOE]

    Sandia's glitter-sized photovoltaic cells are highly efficient and cost effective – the perfect combination for a game-changing technology.

  3. National Laboratory Photovoltaics Research

    Broader source: 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...

  4. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01T23:59:59.000Z

    reductions in costs for installed photovoltaic systems. Thisreductions in costs for installed photovoltaic systems. Thisphotovoltaic technologies that improve upon current solutions by being lower cost,

  5. The Development of Semiconducting Materials for Organic Photovoltaics

    E-Print Network [OSTI]

    Douglas, Jessica D.

    2013-01-01T23:59:59.000Z

    photovoltaics (OPVs) has led to a significant increase in their power conversion efficiencies (Photovoltaics…………………………..………1 Motivation and Current Technology………………………………………………………1 Organic Photovoltaic Device Operation and Structure……………………………………2 Characterization of Organic Photovoltaic Device Efficiency……………………………..

  6. Photon management in thermal and solar photovoltaics

    E-Print Network [OSTI]

    Hu, Lu

    2008-01-01T23:59:59.000Z

    Photovoltaics is a technology that directly converts photon energy into electrical energy. Depending on the photon source, photovoltaic systems can be categorized into two groups: solar photovoltaics (PV) and thermophotovoltaics ...

  7. Manufacturing improvements in the Photovoltaic Manufacturing Technology (PVMaT) Project

    SciTech Connect (OSTI)

    Witt, C.E.; Mitchell, R.L.; Thomas, H.P.; Symko, M.I. [National Renewable Energy Lab., Golden, CO (United States); King, R. [Dept. of Energy, Washington, DC (United States); Ruby, D.S. [Sandia National Labs., Albuquerque, NM (United States)

    1998-08-01T23:59:59.000Z

    The Photovoltaic Manufacturing Technology Project (PVMaT) is a government/industry research and development (R and D) partnership between the US federal government (through the US Department of Energy [DOE]) and members of the US PV industry. The goals of PVMaT are to help the US PV industry improve module manufacturing processes and equipment; accelerate manufacturing cost reductions for PV modules, balance-of-systems components, and integrated systems; increase commercial product performance and reliability; and enhance the investment opportunities for substantial scale-ups of US-based PV manufacturing plant capacities. The approach for PVMaT has been to cost-share risk taking by industry as it explores new manufacturing options and ideas for improved PV modules and other components, advances system and product integration, and develops new system designs, all of which will lead to overall reduced system life-cycle costs for reliable PV end products. The PVMaT Phase 4A module manufac turing R and D projects are just being completed, and initial results for the work directed primarily to module manufacture are reported in this paper. Fourteen new Phase 5A subcontracts have also just been awarded, and planned R and D areas for the ten focused on module manufacture are described. Finally, government funding, subcontractor cost-sharing, and a comparison of the relative efforts by PV technology throughout the PVMaT project are presented.

  8. Small Business Innovation Research and Small Business Technology...

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

    to thin PV strips at the panel edge. One of the advantages of using this technology in a solar panel is that the holograms provide the ability to track the sun without any moving...

  9. Lessons Learned from the Photovoltaic Manufacturing Technology/PV Manufacturing R&D and Thin Film PV Partnership Projects

    SciTech Connect (OSTI)

    Margolis, R.; Mitchell, R.; Zweibel, K.

    2006-09-01T23:59:59.000Z

    As the U.S. Department of Energy's (DOE's) Solar Energy Technologies Program initiates new cost-shared solar energy R&D under the Solar America Initiative (SAI), it is useful to analyze the experience gained from cost-shared R&D projects that have been funded through the program to date. This report summarizes lessons learned from two DOE-sponsored photovoltaic (PV) projects: the Photovoltaic Manufacturing Technology/PV Manufacturing R&D (PVMaT/PVMR&D) project and the Thin-Film PV Partnership project. During the past 10-15 years, these two projects have invested roughly $330 million of government resources in cost-shared R&D and leveraged another $190 million in private-sector PV R&D investments. Following a description of key findings and brief descriptions of the PVMaT/PVMR&D and Thin-Film PV Partnership projects, this report presents lessons learned from the projects.

  10. Small Businesses Receive $2 Million to Advance HVAC Technologies...

    Energy Savers [EERE]

    of Energy announced March 20, 2014, approximately 2 million to advance next generation water heating technologies developed by America's small businesses. The two selected Phase...

  11. Photovoltaic module reliability workshop

    SciTech Connect (OSTI)

    Mrig, L. (ed.)

    1990-01-01T23:59:59.000Z

    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.

  12. Microsystems Enabled Photovoltaics

    ScienceCinema (OSTI)

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

    2014-06-23T23:59:59.000Z

    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. Microsystems Enabled Photovoltaics

    SciTech Connect (OSTI)

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

    2012-07-02T23:59:59.000Z

    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.

  14. Economic valuation of energy storage coupled with photovoltaics : current technologies and future projections

    E-Print Network [OSTI]

    Mosher, Trannon

    2010-01-01T23:59:59.000Z

    A practical framework for the economic valuation of current energy storage systems coupled with photovoltaic (PV) systems is presented. The solar-with-storage system's operation is optimized for two different rate schedules: ...

  15. How to Qualify for NIH Small Business Innovation and Technology Transfer Grants

    E-Print Network [OSTI]

    Berdichevsky, Victor

    How to Qualify for NIH Small Business Innovation and Technology Transfer Grants Professional) and Small Business Technology Transfer (STTR) proposal development services to technology based

  16. Statistical Characterization of Solar Photovoltaic Power Variability at Small Timescales: Preprint

    SciTech Connect (OSTI)

    Shedd, S.; Hodge, B.-M.; Florita, A.; Orwig, K.

    2012-08-01T23:59:59.000Z

    Integrating large amounts of variable and uncertain solar photovoltaic power into the electricity grid is a growing concern for power system operators in a number of different regions. Power system operators typically accommodate variability, whether from load, wind, or solar, by carrying reserves that can quickly change their output to match the changes in the solar resource. At timescales in the seconds-to-minutes range, this is known as regulation reserve. Previous studies have shown that increasing the geographic diversity of solar resources can reduce the short term-variability of the power output. As the price of solar has decreased, the emergence of very large PV plants (greater than 10 MW) has become more common. These plants present an interesting case because they are large enough to exhibit some spatial smoothing by themselves. This work examines the variability of solar PV output among different arrays in a large ({approx}50 MW) PV plant in the western United States, including the correlation in power output changes between different arrays, as well as the aggregated plant output, at timescales ranging from one second to five minutes.

  17. SMALL SCALE WASTE-TO-ENERGY TECHNOLOGIES Claudine Ellyin

    E-Print Network [OSTI]

    in operation. The investigation included both existing grate combustion plants and novel processes. The Energos grate gasification and combustion technology is currently in operation at six plants in Norway1 SMALL SCALE WASTE-TO-ENERGY TECHNOLOGIES Claudine Ellyin Advisor: Prof. Nickolas J. Themelis

  18. Crystalline Silicon Photovoltaics Research

    Broader source: Energy.gov [DOE]

    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...

  19. Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode

    E-Print Network [OSTI]

    Cui, Yi

    Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode Jung-Yong Lee, Steve T demonstrate semitransparent small molecular weight organic photovoltaic cells using a laminated silver metal cathode due to differences in optical absorption. KEYWORDS Organic photovoltaics, transparent

  20. Small Body Exploration Technologies as Precursors for Interstellar Robotics

    SciTech Connect (OSTI)

    Noble, Robert; /SLAC; Sykes, Mark V.; /PSI, Tucson

    2012-02-15T23:59:59.000Z

    The scientific activities undertaken to explore our Solar System will be the same as required someday at other stars. The systematic exploration of primitive small bodies throughout our Solar System requires new technologies for autonomous robotic spacecraft. These diverse celestial bodies contain clues to the early stages of the Solar System's evolution as well as information about the origin and transport of water-rich and organic material, the essential building blocks for life. They will be among the first objects studied at distant star systems. The technologies developed to address small body and outer planet exploration will form much of the technical basis for designing interstellar robotic explorers. The Small Bodies Assessment Group, which reports to NASA, initiated a Technology Forum in 2011 that brought together scientists and technologists to discuss the needs and opportunities for small body robotic exploration in the Solar System. Presentations and discussions occurred in the areas of mission and spacecraft design, electric power, propulsion, avionics, communications, autonomous navigation, remote sensing and surface instruments, sampling, intelligent event recognition, and command and sequencing software. In this paper, the major technology themes from the Technology Forum are reviewed, and suggestions are made for developments that will have the largest impact on realizing autonomous robotic vehicles capable of exploring other star systems.

  1. 2009 Technical Risk and Uncertainty Analysis of the U.S. Department of Energy's Solar Energy Technologies Program Concentrating Solar Power and Photovoltaics R&D

    SciTech Connect (OSTI)

    McVeigh, J.; Lausten, M.; Eugeni, E.; Soni, A.

    2010-11-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) Solar Energy Technologies Program (SETP) conducted a 2009 Technical Risk and Uncertainty Analysis to better assess its cost goals for concentrating solar power (CSP) and photovoltaic (PV) systems, and to potentially rebalance its R&D portfolio. This report details the methodology, schedule, and results of this technical risk and uncertainty analysis.

  2. Dye-Sentitized Solar Cells (DSSCs) are an emerging low-cost third generation photovoltaic technology particularly suited for efficient light-

    E-Print Network [OSTI]

    light-to -electricity conversion efficiency in early implementations under AM1.5 solar light. EasyDye-Sentitized Solar Cells (DSSCs) are an emerging low-cost third generation photovoltaic technology particularly suited for efficient light- to-electricity conversion in indoors low-light

  3. Solar photovoltaics for development applications

    SciTech Connect (OSTI)

    Shepperd, L.W. [Florida Solar Energy Center, Cape Canaveral, FL (United States)] [Florida Solar Energy Center, Cape Canaveral, FL (United States); Richards, E.H. [Sandia National Labs., Albuquerque, NM (United States)] [Sandia National Labs., Albuquerque, NM (United States)

    1993-08-01T23:59:59.000Z

    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.

  4. Project Summary for Small Business Technology Transfer (STTR) Phase II Proposal

    E-Print Network [OSTI]

    Oh, JungHwan

    Project Summary for Small Business Technology Transfer (STTR) Phase II Proposal Title: Real-time Analysis and Feedback during Colonoscopy to improve Quality This Small Business Technology Transfer Phase

  5. Module Handbook Specialisation Photovoltaics

    E-Print Network [OSTI]

    Habel, Annegret

    Module Handbook Specialisation Photovoltaics 2nd Semester for the Master Programme REMA/EUREC Course 2008/2009 University of Northumbria Specialisation Provider: Photovoltaics #12;Specialisation Photovoltaics, University of Northumbria Module 1/Photovoltaics: PHOTOVOLTAIC CELL

  6. Solar photovoltaic power system for a radio station

    SciTech Connect (OSTI)

    Nichols, B. E.

    1980-12-01T23:59:59.000Z

    Under sponsorship of the US Department of Energy, Massachusetts Institute of Technology Lincoln Laboratory has developed a concept for a small photovoltaic power system. Of simple construction, the system uses low-cost, prefabricated, transportable units for easy, fast installation and requires minimal site preparation. The first application of this experimental system began operation in August 1979 at daytime AM radio station WNBO in Bryan, Ohio. The project was jointly undertaken by the Laboratory and the radio station. The photovoltaic system described holds promise for a wide range of applications and economic feasibility by the mid- to late-1980s.

  7. Renewable energy powered membrane technology. 2. The effect of energy fluctuations on performance of a photovoltaic hybrid membrane system 

    E-Print Network [OSTI]

    Richards, B.S.; Capão, D.P.S.; Schäfer, Andrea

    2008-01-01T23:59:59.000Z

    This paper reports on the performance fluctuations during the operation of a batteryless hybrid ultrafiltration – nanofiltration / reverse osmosis (UF-NF/RO) membrane desalination system powered by photovoltaics treating ...

  8. Photovoltaic Subcontract Program

    SciTech Connect (OSTI)

    Not Available

    1993-03-01T23:59:59.000Z

    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.

  9. Photovoltaic product directory and buyers guide

    SciTech Connect (OSTI)

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

    1981-06-01T23:59:59.000Z

    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)

  10. CLEANSPACE 'Small Debris Removal By Laser Illumination And Complementary Technologies'

    SciTech Connect (OSTI)

    Esmiller, Bruno [Astrium Space Transportation, 66 route de Verneuil, 78133 Les Mureaux (France); Jacquelard, Christophe [CILAS, 8 avenue Buffon - ZI La Source - BP 6319, 45063 Orleans (France)

    2011-11-10T23:59:59.000Z

    Studies show that the number of debris in Low Earth Orbit is exponentially growing despite future debris release mitigation measures considered. Especially, the already existing population of small and medium debris (between 1 cm and several dozens of cm) is today a concrete threat to operational satellites. A ground based laser solution which can remove at low expense and in a non-destructive way hazardous debris of decimetric size around selected space assets appears as one highly promising answer. This solution will be studied in the frame of CLEANSPACE project which is a part of the FP7 space theme. The overall CLEANSPACE objective is threefold: to propose an efficient and affordable global system architecture, to tackle safety regulation aspects, political implications and future collaborations, to develop affordable technological bricks and to establish roadmap for the development and the future implantation of a fully functional laser protection system. This paper will present the CLEANSPACE project.

  11. Progress in phases 2 and 3 of the Photovoltaic Manufacturing Technology Project (PVMaT)

    SciTech Connect (OSTI)

    Witt, C.E.; Mitchell, R.L.; Mooney, G.D. [National Renewable Energy Lab., Golden, CO (United States)] [National Renewable Energy Lab., Golden, CO (United States); Herwig, L.O. [USDOE, Washington, DC (United States)] [USDOE, Washington, DC (United States); Hasti, D. [Sandia National Labs., Albuquerque, NM (United States)] [Sandia National Labs., Albuquerque, NM (United States); Sellers, R. [Solar Energy Industries Association, Washington, DC (United States)] [Solar Energy Industries Association, Washington, DC (United States)

    1993-10-01T23:59:59.000Z

    This first year of the process-specific activities of the Photo- voltaic Manufacturing Technology (PVMaT) project has been completed, and the first subcontracts for teamed efforts on R&D of a general nature have been awarded. A second solicitation for process-specific research and development (R&D) is in the evaluation stage for award of subcontracts. This paper describes the technical accomplishments of the first process-specific subcontracts (Phase 2A), the status of the teamed research (Phase 3A), and the status of the solicitation for the second process-specific solicitation (Phases 2B).

  12. Photovoltaic cell

    DOE Patents [OSTI]

    Gordon, Roy G. (Cambridge, MA); Kurtz, Sarah (Somerville, MA)

    1984-11-27T23:59:59.000Z

    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.

  13. Markets for small-scale, advanced coal-combustion technologies

    SciTech Connect (OSTI)

    Placet, M.; Kenkeremath, L.D.; Streets, D.G.; Dials, G.E.; Kern, D.M.; Nehring, J.L.; Szpunar, C.B.

    1988-12-01T23:59:59.000Z

    This report examines the potential of using US-developed advanced coal technologies (ACTs) for small combustors in foreign markets; in particular, the market potentials of the member countries of the Organization of Economic Co-operation and Development (OECD) were determined. First, the United States and those OECD countries with very low energy demands were eliminated. The remaining 15 countries were characterized on the basis of eight factors that would influence their decision to use US ACTs: energy plan and situation, dependence on oil and gas imports, experience with coal, residential/commercial energy demand, industrial energy demand, trade relationship with the United States, level of domestic competition with US ACT manufacturers, and environmental pressure to use advanced technology. Each country was rated high, medium-high, low-medium, or low on each factor, based on statistical and other data. The ratings were then used to group the countries in terms of their relative market potential (good, good but with impediments, or limited). The best potential markets appear to be Spain, Italy, turkey, Greece, and Canada. 25 refs., 1 fig., 37 tabs.

  14. PROGRESS IN PHOTOVOLTAICS RESEARCH AND APPLICATIONS, VOL 2, 235-248 (1994) ~pplications Photovoltaics as a

    E-Print Network [OSTI]

    Delaware, University of

    1994-01-01T23:59:59.000Z

    PROGRESS IN PHOTOVOLTAICS RESEARCH AND APPLICATIONS, VOL 2, 235-248 (1994) ~pplications Photovoltaics as a Demand-side Management Technology: an Analysis of Peak-shaving and Direct Load Control Dept. of Energy University Center of Excellence for Photovoltaic Research and Development, Newark, DE

  15. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-11-01T23:59:59.000Z

    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.

  16. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01T23:59:59.000Z

    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.

  17. Overview of NREL's Photovoltaic Advanced R D Project

    SciTech Connect (OSTI)

    Surek, T.

    1992-01-01T23:59:59.000Z

    The National Renewable Energy Laboratory's (NREL's) Photovoltaic Advanced Research and Development (PV AR D) Project supports the US Department of Energy's National Photovoltaics Program in assisting the development and commercialization of photovoltaics (PV) energy technology. The NREL program is implemented through in-house research and subcontracts, with over 50% of the annual budget awarded through competitive solicitations to universities, large and small businesses, and other research centers. These activities include cost-shared, multiyear, government/industry partnerships and technology initiatives. The research has resulted in a better fundamental understanding of materials, devices, and processes, the achievement of record efficiencies in nearly all PV technology areas, the identification of promising new approaches to low-cost photovoltaics, and the introduction of new PV technology products into system experiments and PV markets. This paper presents an overview of NREL's PV AR D Project in terms of project organization and budgets, near- and long-term project objectives, research participants, and current and future research directions. Recent progress in the in-house and subcontracted research activities is described. 4 refs.

  18. Photovoltaic Materials

    SciTech Connect (OSTI)

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

    2012-10-15T23:59:59.000Z

    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 modules in the field for 25 years. Under this project, Ferro leveraged world leading analytical capabilities at ORNL to characterize the paste-to-silicon interface microstructure and develop high efficiency next generation contact pastes. Ampulse Corporation is developing a revolutionary crystalline-silicon (c-Si) thin-film solar photovoltaic (PV) technology. Utilizing uniquely-textured substrates and buffer materials from the Oak Ridge National Laboratory (ORNL), and breakthroughs in Hot-Wire Chemical Vapor Deposition (HW-CVD) techniques in epitaxial silicon developed at the National Renewable Energy Laboratory (NREL), Ampulse is creating a solar technology that is tunable in silicon thickness, and hence in efficiency and economics, to meet the specific requirements of multiple solar PV applications. This project focused on the development of a high rate deposition process to deposit Si, Ge, and Si1-xGex films as an alternate to hot-wire CVD. Mossey Creek Solar is a start-up company with great expertise in the solar field. The primary interest is to create and preserve jobs in the solar sector by developing high-yield, low-cost, high-efficiency solar cells using MSC-patented and -proprietary technologies. The specific goal of this project was to produce large grain formation in thin, net-shape-thickness mc-Si wafers processed with high-purity silicon powder and ORNL's plasma arc lamp melting without introducing impurities that compromise absorption coefficient and carrier lifetime. As part of this project, ORNL also added specific pieces of equipment to enhance our ability to provide unique insight for the solar industry. These capabilities include a moisture barrier measurement system, a combined physical vapor deposition and sputtering system dedicated to cadmium-containing deposits, adeep level transient spectroscopy system useful for identifying defects, an integrating sphere photoluminescence system, and a high-speed ink jet printing system. These tools were combined with others to study the effect of defects on the performance of crystalline silicon and

  19. EELE408 Photovoltaics Lecture 20: Photovoltaic Systems

    E-Print Network [OSTI]

    Kaiser, Todd J.

    · 6. Determine battery size for recommended reserve time Photovoltaic System Design Block Diagram Ph1 EELE408 Photovoltaics Lecture 20: Photovoltaic Systems Dr. Todd J. Kaiser tjkaiser into the grid 2 Application Areas 3 Photovoltaic System Basics · Photovoltaic Systems ­ Cell Panel Array

  20. Photovoltaic Energy Program overview, fiscal year 1997

    SciTech Connect (OSTI)

    NONE

    1998-02-01T23:59:59.000Z

    The US Department of Energy (DOE) Photovoltaic Energy Program fosters the widespread acceptance of photovoltaic (PV) technology and accelerates commercial use of US PV products. The Program is founded on a collaborative strategy involving industry, the research and development community, potential users, utilities, and state and federal agencies. There are three main Program elements: Systems Engineering and Applications, Technology Development, and Research and Development.

  1. Estimates of occupational safety and health impacts resulting from large-scale production of major photovoltaic technologies

    SciTech Connect (OSTI)

    Owens, T.; Ungers, L.; Briggs, T.

    1980-08-01T23:59:59.000Z

    The purpose of this study is to estimate both quantitatively and qualitatively, the worker and societal risks attributable to four photovoltaic cell (solar cell) production processes. Quantitative risk values were determined by use of statistics from the California semiconductor industry. The qualitative risk assessment was performed using a variety of both governmental and private sources of data. The occupational health statistics derived from the semiconductor industry were used to predict injury and fatality levels associated with photovoltaic cell manufacturing. The use of these statistics to characterize the two silicon processes described herein is defensible from the standpoint that many of the same process steps and materials are used in both the semiconductor and photovoltaic industries. These health statistics are less applicable to the gallium arsenide and cadmium sulfide manufacturing processes, primarily because of differences in the materials utilized. Although such differences tend to discourage any absolute comparisons among the four photovoltaic cell production processes, certain relative comparisons are warranted. To facilitate a risk comparison of the four processes, the number and severity of process-related chemical hazards were assessed. This qualitative hazard assessment addresses both the relative toxicity and the exposure potential of substances in the workplace. In addition to the worker-related hazards, estimates of process-related emissions and wastes are also provided.

  2. Photovoltaics for municipal planners

    SciTech Connect (OSTI)

    Not Available

    1993-04-01T23:59:59.000Z

    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.

  3. Assessing the prospective environmental impacts of photovoltaic systems based on a simplified LCA model

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Assessing the prospective environmental impacts of photovoltaic systems based on a simplified LCA the environmental impacts of PV systems are small during their operating phase, they are more significant during the use of LCA to assess the environmental impacts of one electricity-production technology. To address

  4. US photovoltaic patents: 1991--1993

    SciTech Connect (OSTI)

    Pohle, L

    1995-03-01T23:59:59.000Z

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

  5. EELE408 Photovoltaics Lecture 15 Photovoltaic Devices

    E-Print Network [OSTI]

    Kaiser, Todd J.

    1 EELE408 Photovoltaics Lecture 15 Photovoltaic Devices Dr. Todd J. Kaiser tjkaiser) · Demonstrated the photovoltaic effect · Best results with UV or blue light 2 g · Electrodes covered with light of photovoltaic effect in an all solid state device · Several decades before the effect could be explained Fritts

  6. A GUIDE TO PHOTOVOLTAIC (PV) SYSTEM DESIGN AND INSTALLATION

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION A GUIDE TO PHOTOVOLTAIC (PV) SYSTEM DESIGN AND INSTALLATION JUNE 2001 TO PHOTOVOLTAIC (PV) SYSTEM DESIGN AND INSTALLATION Prepared for: California Energy Commission Energy Technology installing photovoltaic (PV) systems under the Emerging Renewables Buydown Program. This is the first

  7. Peer Effects in the Diffusion of Solar Photovoltaic Panels

    E-Print Network [OSTI]

    Lee, Daeyeol

    Peer Effects in the Diffusion of Solar Photovoltaic Panels Bryan Bollinger NYU Stern School base of consumers in the reference group. We study the diffusion of solar photovoltaic panels of an environmentally beneficial technology, solar photovoltaic (PV) panels. Policymakers are particularly interested

  8. EXCURSION: enterprises in our region "Centrotherm photovoltaics AG"

    E-Print Network [OSTI]

    Pfeifer, Holger

    EXCURSION: enterprises in our region "Centrotherm photovoltaics AG" 4th of November 2009 Invitation of a German enterprise called centrotherm photovoltaics AG in Blaubeuren. They are providers of technology and services for the photovoltaics industry. For organizational reasons we ask you to register for this visit

  9. Nanoscience and Nanostructures for Photovoltaics and Solar Fuels

    E-Print Network [OSTI]

    Wu, Zhigang

    Nanoscience and Nanostructures for Photovoltaics and Solar Fuels Arthur J. Nozik National Renewable to enhance the power conversion efficiency of solar cells for photovoltaic and solar fuels production of the technological status of nanocrystals and nanostructures for third generation photovoltaic cells and solar fuels

  10. Organic Electronics and Photovoltaics CopyrightDaveWhite2008

    E-Print Network [OSTI]

    ENERGY Organic Electronics and Photovoltaics Objective CopyrightDaveWhite2008 Organic electronics and photovoltaic technology are reaching critical mass with the establishment of a U.S. consortium and the recent an inte- grated suite of measurement methods to tie the electrical and photovoltaic performance of organic

  11. Fabrication and Characterization of Organic/Inorganic Photovoltaic Devices

    E-Print Network [OSTI]

    Guvenc, Ali Bilge

    2012-01-01T23:59:59.000Z

    reducing the cost for photovoltaic devices by introducing aPhotovoltaic Cell Materials Different materials display different efficiencies and have different costs.photovoltaic devices have recently drawn tremendous attention because of their technological advantages for actualization of large-area and cost

  12. National Center for Photovoltaics at NREL

    SciTech Connect (OSTI)

    VanSant, Kaitlyn; Wilson, Greg; Berry, Joseph; Al-Jassim, Mowafak; Kurtz, Sarah

    2013-11-07T23:59:59.000Z

    The National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV is a central resource for our nation's capabilities in PV research, development, deployment, and outreach.

  13. National Center for Photovoltaics at NREL

    ScienceCinema (OSTI)

    VanSant, Kaitlyn; Wilson, Greg; Berry, Joseph; Al-Jassim, Mowafak; Kurtz, Sarah

    2014-06-10T23:59:59.000Z

    The National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV is a central resource for our nation's capabilities in PV research, development, deployment, and outreach.

  14. Continuous roll-to-roll a-Si photovoltaic manufacturing technology. Semiannual technical progress report, 1 April 1992--30 September 1992

    SciTech Connect (OSTI)

    Izu, M. [Energy Conversion Devices, Inc., Troy, MI (United States)

    1993-04-01T23:59:59.000Z

    This report describes work performed by ECD to advance its roll-to-roll, triple-junction photovoltaic manufacturing technologies; to reduce the module production costs; to increase the stabilized module performance; and to expand the commercial capacity utilizing ECD technology. The 3-year goal is to develop advanced large-scale manufacturing technology incorporating ECD`s earlier research advances with the capability of producing modules with stable 11% efficiency at a cost of approximately $1/W{sub p}. Major efforts during Phase I are (1) the optimization of the high-performance back-reflector system, (2) the optimization of a-Si-Ge narrow band-gap solar cell, and (3) the optimization of the stable efficiency of the module. The goal is to achieve a stable 8% efficient 0.3-m {times} 1.2-m (1-ft {times} 4-ft) module. Also, the efforts include work on a proprietary, high-deposition-rate, microwave plasma, CVD manufacturing technology; and on the investigation of material cost reduction.

  15. World Conference on Photovoltaic Conversion, Hawaii, May 8-12, 2006 QUANTIFYING THE LIFE-CYCLE ENVIRONMENTAL PROFILE OF PHOTOVOLTAICS

    E-Print Network [OSTI]

    IEEE 4 th World Conference on Photovoltaic Conversion, Hawaii, May 8-12, 2006 QUANTIFYING THE LIFE-CYCLE ENVIRONMENTAL PROFILE OF PHOTOVOLTAICS AND COMPARISONS WITH OTHER ELECTRICITY-GENERATING TECHNOLOGIES V and Australian studies portrayed photovoltaic systems as causing significant life-cycle environmental and health

  16. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01T23:59:59.000Z

    and Photovoltaic Performance . . . . . . . . . . . . . . .Amorphous Silicon as a Photovoltaic Material 2.1.2ii Photovoltaic Model . . . . . . . . . . .

  17. Request for Information on Photovoltaic Module Recycling

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy SunShot Initiative requests feedback from industry, academia, research laboratories, government agencies, and other stakeholders on issues related to photovoltaic (PV) module recycling technology. SunShot intends to understand the current state of recycling technology and the areas of research that could lead to impactful recycling technologies to support the developing PV industry. The intent of this request for information is to generate discussion related to planning for the end of life of photovoltaic modules and to create a list of high impact research topics in photovoltaics recycling.

  18. Innovation in energy technology Andrew Blakers

    E-Print Network [OSTI]

    for all low emission technologies, and should therefore pick a small number of low emission energy winners and wind energy have very small environmental impacts compared with fossil and nuclear energy 5. The MRET: photovoltaics (PV), solar thermal electricity (STE), solar heat, wind, wave, bio energy, hydro, ocean energy etc

  19. Photovoltaic roof heat flux

    E-Print Network [OSTI]

    Samady, Mezhgan Frishta

    2011-01-01T23:59:59.000Z

    designs (relatively) Photovoltaic Solar P a n e l AtmosphereCALIFORNIA, SAN DIEGO Photovoltaic Roof Heat Flux A ThesisABSTRACT OF T H E THESIS Photovoltaic Roof Heat Flux by

  20. INTEGRATING PHOTOVOLTAIC SYSTEMS

    E-Print Network [OSTI]

    Delaware, University of

    INTEGRATING PHOTOVOLTAIC SYSTEMS INTO PUBLIC SECTOR PERFORMANCE CONTRACTS IN DELAWARE FINAL for Energy and Environmental Policy University of Delaware February 2006 #12;INTEGRATING PHOTOVOLTAIC..................................................................................................... 1 1.2 Photovoltaics in Performance Contracts: An Overview

  1. Photovoltaics Life Cycle Analysis

    E-Print Network [OSTI]

    1 Photovoltaics Life Cycle Analysis Vasilis Fthenakis Center of Life Cycle Analysis Earth & Environmental Engineering Department Columbia University and National Photovoltaic (PV) EHS Research Center (air, water, solid) M, Q E PV array Photovoltaic modules Balance of System (BOS) (Inverters

  2. Analysis of the Potential Applications of Solar Termal and Photovoltaic Systems for Northwest Vista College

    E-Print Network [OSTI]

    Ugursal, A.; Martinez, J.; Baltazar, J. C.; Zilbershtein, G.

    2013-01-01T23:59:59.000Z

    the following RE technologies as viable: ground source heat pump (GSHP) systems, closed loop solar thermal system and photovoltaic (PV)....

  3. Plasmonic photovoltaics K.R. Catchpole1,2, S. Pillai2, M.A. Green2,

    E-Print Network [OSTI]

    Polman, Albert

    Australia 3California Institute of Technology (CALTECH) Pasadena, California, USA #12;UNSW Why Solar of the worlds energy using 8% efficient photovoltaics. The Solar Resource Average solar irradiance, W/m2. #12? The size of the resource. The small black dots show the area of solar panels needed to generate all

  4. Resource allocation in applications research : challenges and strategies of small technology developing companies

    E-Print Network [OSTI]

    Pretorius, Jacob v. R., 1969-

    2004-01-01T23:59:59.000Z

    This is a study into the allocation of resources in the early stages of research in a small commercial entity that develops innovative technologies. The premise is that resource allocation must focus on the implementation ...

  5. Photovoltaic Subcontract Program, FY 1991

    SciTech Connect (OSTI)

    Not Available

    1992-03-01T23:59:59.000Z

    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. Sandia National Laboratories: Small Business Technology Transfer Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErikGroundbreaking WorkTransformationSiting Siting At theprogram Technology

  7. Photovoltaics at DOE's National Renewable Energy Laboratory License...

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

    describes a sample land use agreement surrounding the National Renewable Energy Laboratory Science and Technology Facility roof-top photovoltaic (PV) power purchase agreement...

  8. Low Capital Photovoltaic Panel Electrical Output-Booster System...

    Office of Environmental Management (EM)

    SunShot Initiative Peer Review Report SunShot Home About Concentrating Solar Power Photovoltaics Systems Integration Soft Costs Technology to Market Success Stories Financial...

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

    Energy Savers [EERE]

    Testing Results DOE-HDBK-1084-95 SunShot Home About Concentrating Solar Power Photovoltaics Systems Integration Soft Costs Technology to Market Success Stories Financial...

  10. Fabrication and life cycle assessment of organic photovoltaics.

    E-Print Network [OSTI]

    Anctil, Annick

    2011-01-01T23:59:59.000Z

    ??Increasing demand for renewable energy has resulted in a new interest for alternative technologies such as organic photovoltaics. With efficiencies exceeding 8% for both polymer… (more)

  11. Financing Non-Residential Photovoltaic Projects: Options and Implications

    E-Print Network [OSTI]

    Bolinger, Mark

    2009-01-01T23:59:59.000Z

    of panel titled “Financing Residential and Small CommercialL ABORATORY Financing Non-Residential Photovoltaic Projects:1 2. Policy Support for Non-Residential PV

  12. Commercialization of Los Alamos National Laboratory technologies via small businesses. Final report

    SciTech Connect (OSTI)

    Brice, R.; Carton, D.; Rhyne, T. [and others] [and others

    1997-06-01T23:59:59.000Z

    Appendices are presented from a study performed on a concept model system for the commercialization of Los Alamos National Laboratory technologies via small businesses. Topics include a summary of information from the joint MCC/Los Alamos technology conference; a comparison of New Mexico infrastructure to other areas; a typical licensing agreement; technology screening guides; summaries of specific DOE/UC/Los Alamos documents; a bibliography; the Oak Ridge National Laboratory TCRD; The Ames Center for Advanced Technology Development; Los Alamos licensing procedures; presentation of slides from monthly MCC/Los Alamos review meetings; generalized entrepreneurship model; and a discussion on receiving equity for technology.

  13. Process Development for Nanostructured Photovoltaics

    SciTech Connect (OSTI)

    Elam, Jeffrey W.

    2015-01-01T23:59:59.000Z

    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.

  14. Making the most of residential photovoltaic systems

    SciTech Connect (OSTI)

    Moon, S.; Parker, D.; Hayter, S.

    1999-10-18T23:59:59.000Z

    Making the Most of Residential Photovoltaic Systems, was recently produced by NREL Communications and Public Affairs. It showcases a demonstration project in Florida that produced some remarkable results by incorporating both energy efficiency and photovoltaic systems into newly built housing. The brochure points up the benefits of making wise personal choices about energy use, and how large-scale use of advanced energy technologies can benefit the nation. This is one of a series of brochures that presents stimulating information about photovoltaics, with a goal of helping to push this technology into the power-generation mix in different utilities, communities, and states.

  15. The Department of Energy's Small Business Innovation Research and Small Business Technology Transfer Programs, IG-0876

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy StrainClientDesignOfficeThe AllegationsSmall Business Innovation

  16. Photovoltaics: New opportunities for utilities

    SciTech Connect (OSTI)

    Not Available

    1991-07-01T23:59:59.000Z

    This publication presents information on photovoltaics. The following topics are discussed: Residential Photovoltaics: The New England Experience Builds Confidence in PV; Austin's 300-kW Photovoltaic Power Station: Evaluating the Breakeven Costs; Residential Photovoltaics: The Lessons Learned; Photovoltaics for Electric Utility Use; Least-Cost Planning: The Environmental Link; Photovoltaics in the Distribution System; Photovoltaic Systems for the Rural Consumer; The Issues of Utility-Intertied Photovoltaics; and Photovoltaics for Large-Scale Use: Costs Ready to Drop Again.

  17. Photovoltaic system reliability

    SciTech Connect (OSTI)

    Maish, A.B.; Atcitty, C. [Sandia National Labs., NM (United States); Greenberg, D. [Ascension Technology, Inc., Lincoln Center, MA (United States)] [and others

    1997-10-01T23:59:59.000Z

    This paper discusses the reliability of several photovoltaic projects including SMUD`s PV Pioneer project, various projects monitored by Ascension Technology, and the Colorado Parks project. System times-to-failure range from 1 to 16 years, and maintenance costs range from 1 to 16 cents per kilowatt-hour. Factors contributing to the reliability of these systems are discussed, and practices are recommended that can be applied to future projects. This paper also discusses the methodology used to collect and analyze PV system reliability data.

  18. Photovoltaic panel clamp

    DOE Patents [OSTI]

    Mittan, Margaret Birmingham (Oakland, CA); Miros, Robert H. J. (Fairfax, CA); Brown, Malcolm P. (San Francisco, CA); Stancel, Robert (Loss Altos Hills, CA)

    2012-06-05T23:59:59.000Z

    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 panel clamp

    DOE Patents [OSTI]

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

    2013-03-19T23:59:59.000Z

    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.

  20. Overview of NREL`s Photovoltaic Advanced R&D Project

    SciTech Connect (OSTI)

    Surek, T.

    1992-01-01T23:59:59.000Z

    The National Renewable Energy Laboratory`s (NREL`s) Photovoltaic Advanced Research and Development (PV AR & D) Project supports the US Department of Energy`s National Photovoltaics Program in assisting the development and commercialization of photovoltaics (PV) energy technology. The NREL program is implemented through in-house research and subcontracts, with over 50% of the annual budget awarded through competitive solicitations to universities, large and small businesses, and other research centers. These activities include cost-shared, multiyear, government/industry partnerships and technology initiatives. The research has resulted in a better fundamental understanding of materials, devices, and processes, the achievement of record efficiencies in nearly all PV technology areas, the identification of promising new approaches to low-cost photovoltaics, and the introduction of new PV technology products into system experiments and PV markets. This paper presents an overview of NREL`s PV AR & D Project in terms of project organization and budgets, near- and long-term project objectives, research participants, and current and future research directions. Recent progress in the in-house and subcontracted research activities is described. 4 refs.

  1. IEEE JOURNAL OF PHOTOVOLTAICS 1 Optimal Dispatch of Residential Photovoltaic

    E-Print Network [OSTI]

    Giannakis, Georgios

    IEEE JOURNAL OF PHOTOVOLTAICS 1 Optimal Dispatch of Residential Photovoltaic Inverters Under of existing low- voltage distribution systems with high photovoltaic (PV) gen- eration have focused relaxation techniques. Index Terms--Distribution networks, microgrids, photovoltaic systems, inverter control

  2. The impact of interfaces on the performance of organic photovoltaic cells.

    E-Print Network [OSTI]

    Steim, Roland

    2010-01-01T23:59:59.000Z

    ??Organic photovoltaic is an attractive technology to solve future energy supply scenarios. To further increase the potential of this technology novel absorber materials and interface… (more)

  3. Photovoltaics information user study

    SciTech Connect (OSTI)

    Belew, W.W.; Wood, B.L.; Marie, T.L.; Reinhardt, C.L.

    1980-10-01T23:59:59.000Z

    The results of a series of telephone interviews with groups of users of information on photovoltaics (PV) are described. These results, part of a larger study on many different solar technologies, identify types of information each group needed and the best ways to get information to each group. The report is 1 of 10 discussing study results. The overall study provides baseline data about information needs in the solar community. It covers these technological areas: photovoltaics, passive solar heating and cooling, active solar heating and cooling, biomass energy, solar thermal electric power, solar industrial and agricultural process heat, wind energy, ocean energy, and advanced energy storage. An earlier study identified the information user groups in the solar community and the priority (to accelerate solar energy commercialization) of getting information to each group. In the current study only high-priority groups were examined. Results from seven PV groups respondents are analyzed in this report: DOE-Funded Researchers, Non-DOE-Funded Researchers, Researchers Working for Manufacturers, Representatives of Other Manufacturers, Representatives of Utilities, Electric Power Engineers, and Educators.

  4. PHOTOVOLTAICS AND THE ENVIRONMENT 1998. REPORT ON THE WORKSHOP PHOTOVOLTAICS AND THE ENVIRONMENT 1999

    SciTech Connect (OSTI)

    FTHENAKIS,V.; ZWEIBEL,K.; MOSKOWITZ,P.

    1999-02-01T23:59:59.000Z

    The objective of the workshop ``Photovoltaics and the Environment'' was to bring together PV manufacturers and industry analysts to define EH and S issues related to the large-scale commercialization of PV technologies.

  5. Chapter VII-2, Practical Handbook of Photovoltaics: Fundamentals and Applications, General editors T. Markvart and L. Castaner, to

    E-Print Network [OSTI]

    Ohta, Shigemi

    Chapter VII-2, Practical Handbook of Photovoltaics: Fundamentals and Applications, General editors Brookhaven National Laboratory Upton, NY 11973 1. INTRODUCTION Photovoltaic (PV) technologies have distinct of photovoltaic systems does not produce any noise, toxic-gas emissions, or greenhouse gases. Photovoltaic

  6. Photovoltaic Subcontract Program, FY 1990

    SciTech Connect (OSTI)

    Summers, K.A. (ed.)

    1991-03-01T23:59:59.000Z

    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.

  7. 1. INTRODUCTION It is apparent that information technology is the backbone of many organizations, small

    E-Print Network [OSTI]

    Blustein, J.

    of persons called Network Security Administrators. They use a wide variety of tools and procedures to keep out by a typical Network Security Administrator in a small to medium sized company. Hierarchical task regarding network security have become a high priority. Companies use technologies such as e-mail, web

  8. Asian Institute of Technology (AIT), Klong Luang, Pathumthani, Thailand The Small Earth Nepal (SEN), Kathmandu, Nepal

    E-Print Network [OSTI]

    Walter, M.Todd

    Earth Nepal (SEN), Kathmandu, Nepal Center of Research for Environment Energy and Water (CREEW), Kathmandu, Nepal International Research Center for River Basin Environment-University of Yamanashi (ICRE). Kathmandu Valley Groundwater Outlook. Asian Institute of Technology (AIT), The Small Earth Nepal (SEN

  9. Effects of Metastabilities on CIGS Photovoltaic Modules

    Broader source: Energy.gov [DOE]

    This poster describes a SunShot Initiative solar project led by a team from Nexcis Photovoltaic Technology entitled "Effects of Metastabilities on CIGS Photovoltaic Modules." The team studied the driving force of the mechanisms which governs the different observed phases during storage, light exposition and annealing. The aim of this study is to obtain a better understanding of this phenomenon and hence a better evaluation of its impact on solar panel reliability.

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

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

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

  11. Sandia National Laboratories: Photovoltaic Regional Testing Center...

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

    Grid Integration, Modeling, Modeling & Analysis, News, News & Events, Partnership, Photovoltaic, Photovoltaic Regional Testing Center (PV RTC), Photovoltaic Systems Evaluation...

  12. Postdoctoral Fellowship in Advanced Photovoltaics McMaster University has recently been granted $4.1M for a Special Project in Photovoltaics by the Ontario Centres

    E-Print Network [OSTI]

    Thompson, Michael

    Postdoctoral Fellowship in Advanced Photovoltaics Background McMaster University has recently been granted $4.1M for a Special Project in Photovoltaics by the Ontario Centres of Excellence (OCE) ­ Centre) photovoltaic devices, with a preference given to candidates with experience in multi-junction PV technology

  13. Photovoltaic Energy Conversion

    E-Print Network [OSTI]

    Glashausser, Charles

    Photovoltaic Energy Conversion Frank Zimmermann #12;Solar Electricity Generation Consumes no fuel Make solar cells more efficient Theoretical energy conversion efficiency limit of single junction warming and fossil fuel depletion problems! #12;Photovoltaics: Explosive Growth Sustained growth of 30

  14. INNOVATION MARKETPLACE A QUARTERLY UPDATE OF AVAILABLE TECHNOLOGIES...

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

    Switching Device Highlights From Past Issues * Microsystems Enabled Photovoltaics (MEPV): Solar Glitter(tm) Photovoltaic Technology * Wireless Passive Radiation Sensor * Embedded...

  15. Electroluminescence in photovoltaic cell

    E-Print Network [OSTI]

    Petraglia, Antonio; 10.1088/0031-9120/46/5/F01

    2011-01-01T23:59:59.000Z

    Here we propose two methods to get electroluminescence images from photovoltaic cells in a school or home lab.

  16. Amorphous silicon photovoltaic devices

    DOE Patents [OSTI]

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

    2004-08-31T23:59:59.000Z

    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.

  17. Automated Demand Response Technology Demonstration Project for Small and Medium Commercial Buildings

    SciTech Connect (OSTI)

    Page, Janie; Kiliccote, Sila; Dudley, Junqiao Han; Piette, Mary Ann; Chiu, Albert K.; Kellow, Bashar; Koch, Ed; Lipkin, Paul

    2011-07-01T23:59:59.000Z

    Small and medium commercial customers in California make up about 20-25% of electric peak load in California. With the roll out of smart meters to this customer group, which enable granular measurement of electricity consumption, the investor-owned utilities will offer dynamic prices as default tariffs by the end of 2011. Pacific Gas and Electric Company, which successfully deployed Automated Demand Response (AutoDR) Programs to its large commercial and industrial customers, started investigating the same infrastructures application to the small and medium commercial customers. This project aims to identify available technologies suitable for automating demand response for small-medium commercial buildings; to validate the extent to which that technology does what it claims to be able to do; and determine the extent to which customers find the technology useful for DR purpose. Ten sites, enabled by eight vendors, participated in at least four test AutoDR events per site in the summer of 2010. The results showed that while existing technology can reliably receive OpenADR signals and translate them into pre-programmed response strategies, it is likely that better levels of load sheds could be obtained than what is reported here if better understanding of the building systems were developed and the DR response strategies had been carefully designed and optimized for each site.

  18. EELE408 Photovoltaics Lecture 17 Photovoltaic Modules

    E-Print Network [OSTI]

    Kaiser, Todd J.

    1 EELE408 Photovoltaics Lecture 17 Photovoltaic Modules Dr. Todd J. Kaiser tjkaiser to temperature effects and other non ideal conditions · Allows for voltage drops across other PV system components · Requires 15 V to charge a 12 V battery 10 Module Current · Depends primarily on size of solar

  19. Market Assessment of Biomass Gasification and Combustion Technology for Small- and Medium-Scale Applications

    SciTech Connect (OSTI)

    Peterson, D.; Haase, S.

    2009-07-01T23:59:59.000Z

    This report provides a market assessment of gasification and direct combustion technologies that use wood and agricultural resources to generate heat, power, or combined heat and power (CHP) for small- to medium-scale applications. It contains a brief overview of wood and agricultural resources in the U.S.; a description and discussion of gasification and combustion conversion technologies that utilize solid biomass to generate heat, power, and CHP; an assessment of the commercial status of gasification and combustion technologies; a summary of gasification and combustion system economics; a discussion of the market potential for small- to medium-scale gasification and combustion systems; and an inventory of direct combustion system suppliers and gasification technology companies. The report indicates that while direct combustion and close-coupled gasification boiler systems used to generate heat, power, or CHP are commercially available from a number of manufacturers, two-stage gasification systems are largely in development, with a number of technologies currently in demonstration. The report also cites the need for a searchable, comprehensive database of operating combustion and gasification systems that generate heat, power, or CHP built in the U.S., as well as a national assessment of the market potential for the systems.

  20. Emerging High-Efficiency Low-Cost Solar Cell Technologies

    E-Print Network [OSTI]

    McGehee, Michael

    . A Manufacturing Cost Analysis Relevant to Photovoltaic Cells Fabricated with IIIEmerging High-Efficiency Low-Cost Solar Cell Technologies Mike McGehee Materials Science and Engineering Center for Advanced Molecular Photovoltaics Bay Area Photovoltaic Consortium Precourt Institute

  1. Cast polycrystalline silicon photovoltaic module manufacturing technology improvements. Semiannual subcontract report, 8 December 1993--30 June 1994

    SciTech Connect (OSTI)

    Wohlgemuth, J. [Solarex Corp., Frederick, MD (United States)

    1995-03-01T23:59:59.000Z

    This report describes work done under a 3-year program to advance Solarex`s cast polycrystalline silicon manufacturing technology, reduce module production cost, increase module performance, and expand Solarex`s commercial production capacities. The accomplishments described in this report are as follows: (1) the authors designed modifications to casting stations, ceramic molds, and sizing saws to allow for casting and sizing of larger ingots; (2) they demonstrated the casting of ingots with 17% larger volume; (3) the selected and purchased a new wire saw from HCT Shaping Systems; (4) they demonstrated wafering of eight bricks (2,400 wafers or {approximately}4.4 kilowatts at the cell level) in a 6.5-h run; (5) they demonstrated 14% average cell efficiency in the laboratory using an aluminum paste back surface field; (6) the Automation and Robotics Research Institute (ARRI) completed a modeling study of the Solarex module assembly process; (7) they identified and qualified three new lower-cost back sheet materials through accelerated environmental tests; and (8) they designed and built a test structure for mounting frameless modules, and selected two adhesives and began testing their ability to hold modules to the structure.

  2. US Photovoltaic Patents, 1988--1990

    SciTech Connect (OSTI)

    Not Available

    1991-12-01T23:59:59.000Z

    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 1988 through 1990. The entries were located by searching USPA, the data base 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. A manual search of the patents in the Solar Energy Research Institute (SERI) patent file augmented the data base search. 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 photovoltaics. Some patents on these three subjects were included when it appeared that those inventions might be of use in terrestrial PV power technologies.

  3. US Photovoltaic Patents, 1988--1990

    SciTech Connect (OSTI)

    Not Available

    1991-12-01T23:59:59.000Z

    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 1988 through 1990. The entries were located by searching USPA, the data base 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. A manual search of the patents in the Solar Energy Research Institute (SERI) patent file augmented the data base search. 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 photovoltaics. Some patents on these three subjects were included when it appeared that those inventions might be of use in terrestrial PV power technologies.

  4. NREL Photovoltaic Program FY 1996 Annual Report

    SciTech Connect (OSTI)

    Not Available

    1997-08-01T23:59:59.000Z

    This report summarizes the in-house and subcontract research and development (R&D) activities under the National Renewable Energy Laboratory (NREL) Photovoltaics (PV) Program from October 1, 1995 through September 30, 1996 (fiscal year [FY] 1996). The NREL PV Program is part of the U.S. Department of Energy's (DOE) National Photovoltaics Program, as described in the DOE Photovoltaics Program Plan, FY 1991 - FY 1995. The mission of the DOE National Photovoltaics Program is to: "Work in partnership with U.S. industry to develop and deploy photovoltaic technology for generating economically competitive electric power, making photovoltaics an important contributor to the nation's and the world's energy use and environmental improvement. The two primary goals of the national program are to (1) maintain the U.S. PV industry's world leadership in research and technology development and (2) help the U.S. industry remain a major, profitable force in the world market. The NREL PV Program provides leadership and support to the national program toward achieving its mission and goals.

  5. What is microfluidics? It is the science and technology of systems that process or manipulate small (109

    E-Print Network [OSTI]

    Prentiss, Mara

    What is microfluidics? It is the science and technology of systems that process or manipulate small of micrometres. The first applications of microfluidic technologies have been in analy- sis, for which they offer for analysis; and small footprints for the analytical devices1 . Microfluidics exploits both its most obvious

  6. EEC 289-L Photovoltaics and Solar Cells 3 Units Winter Quarter (Alternate Years)

    E-Print Network [OSTI]

    EEC 289-L Photovoltaics and Solar Cells 3 Units ­ Winter Quarter (Alternate Years) Prerequisite, and third-generation photovoltaics and solar cells, including design, fabrication technology, and grid physics of photovoltaics a. Device operation and performance metrics b. Properties of solar radiation c

  7. Importance of the Donor:Fullerene Intermolecular Arrangement for High-Efficiency Organic Photovoltaics

    E-Print Network [OSTI]

    McGehee, Michael

    Photovoltaics Kenneth R. Graham,, Clement Cabanetos, Justin P. Jahnke,§ Matthew N. Idso,§ Abdulrahman El Labban *S Supporting Information ABSTRACT: The performance of organic photovoltaic (OPV) material systems the performance of OPV material systems. INTRODUCTION Organic photovoltaics (OPVs) are a promising PV technology

  8. Commercialization of Los Alamos National Laboratory technologies via small businesses. Final report

    SciTech Connect (OSTI)

    Brice, R.; Cartron, D.; Rhyne, T.; Schulze, M.; Welty, L.

    1997-06-01T23:59:59.000Z

    Over the past decade, numerous companies have been formed to commercialize research results from leading U.S. academic and research institutions. Emerging small businesses in areas such as Silicon Valley, Boston`s Route 128 corridor, and North Carolina`s Research Triangle have been especially effective in moving promising technologies from the laboratory bench to the commercial marketplace--creating new jobs and economic expansion in the process. Unfortunately, many of the U.S. national laboratories have not been major participants in this technology/commercialization activity, a result of a wide variety of factors which, until recently, acted against successful commercialization. This {open_quotes}commercialization gap{close_quotes} exists partly due to a lack, within Los Alamos in particular and the DOE in general, of in-depth expertise and experience in such business areas as new business development, securities regulation, market research and the determination of commercial potential, the identification of entrepreneurial management, marketing and distribution, and venture capital sources. The immediate consequence of these factors is the disappointingly small number of start-up companies based on technologies from Los Alamos National Laboratory that have been attempted, the modest financial return Los Alamos has received from these start-ups, and the lack of significant national recognition that Los Alamos has received for creating and commercializing these technologies.

  9. Battery-assisted and Photovoltaic-sourced Switched-inductor CMOS Harvesting ChargerSupply

    E-Print Network [OSTI]

    Rincon-Mora, Gabriel A.

    Battery-assisted and Photovoltaic-sourced Switched-inductor CMOS Harvesting Charger­Supply Rajiv-scale photovoltaic (PV) cells harness a diminutive fraction of light and artificial lighting avails a small 25 mV at 10 ­ 80 kHz and with 77% ­ 89% efficiency. Index Terms--Harvester, photovoltaic (PV

  10. ARE660 Wind Generator: Low Wind Speed Technology for Small Turbine Development

    SciTech Connect (OSTI)

    Robert W. Preus; DOE Project Officer - Keith Bennett

    2008-04-23T23:59:59.000Z

    This project is for the design of a wind turbine that can generate most or all of the net energy required for homes and small businesses in moderately windy areas. The purpose is to expand the current market for residential wind generators by providing cost effective power in a lower wind regime than current technology has made available, as well as reduce noise and improve reliability and safety. Robert W. Preus’ experience designing and/or maintaining residential wind generators of many configurations helped identify the need for an improved experience of safety for the consumer. Current small wind products have unreliable or no method of stopping the wind generator in fault or high wind conditions. Consumers and their neighbors do not want to hear their wind generators. In addition, with current technology, only sites with unusually high wind speeds provide payback times that are acceptable for the on-grid user. Abundant Renewable Energy’s (ARE) basic original concept for the ARE660 was a combination of a stall controlled variable speed small wind generator and automatic fail safe furling for shutdown. The stall control for a small wind generator is not novel, but has not been developed for a variable speed application with a permanent magnet alternator (PMA). The fail safe furling approach for shutdown has not been used to our knowledge.

  11. Introduction! Low Cost, High Volume, Scale-up Photovoltaic Manufacturing!

    E-Print Network [OSTI]

    Das, Suman

    Introduction! Low Cost, High Volume, Scale-up Photovoltaic Manufacturing! Prof. Shreyes Melkote, Manufacturing Research Center, Georgia Institute of Technology Photovoltaics (PV) will be part of the energy mix volume PV manufacturing, therefore to reduce manufacturing cost and accelerate PV use. ! q Silicon wafer

  12. 9Tomorrow's Technology Transfer Volume 1, Number 1 WiNter 2009 small U.S. businesses would have certainty

    E-Print Network [OSTI]

    McQuade, D. Tyler

    9Tomorrow's Technology Transfer Volume 1, Number 1 WiNter 2009 small U.S. businesses would have of technology transfer. Interest expanded until, in 2006, AUTM's Licensing SurveyTM identified tech- nology "Communicating the Full Value of Aca- demic Technology Transfer: Some Lessons Learned," originally published

  13. Reliable, Efficient and Cost-Effective Electric Power Converter for Small Wind Turbines Based on AC-link Technology

    SciTech Connect (OSTI)

    Darren Hammell; Mark Holveck; DOE Project Officer - Keith Bennett

    2006-08-01T23:59:59.000Z

    Grid-tied inverter power electronics have been an Achilles heel of the small wind industry, providing opportunity for new technologies to provide lower costs, greater efficiency, and improved reliability. The small wind turbine market is also moving towards the 50-100kW size range. The unique AC-link power conversion technology provides efficiency, reliability, and power quality advantages over existing technologies, and Princeton Power will adapt prototype designs used for industrial asynchronous motor control to a 50kW small wind turbine design.

  14. Photovoltaics Business Models

    SciTech Connect (OSTI)

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

    2008-02-01T23:59:59.000Z

    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.

  15. Concentrating Photovoltaics (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2009-01-20T23:59:59.000Z

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

  16. Photovoltaic Cell Structure Basics

    Broader source: Energy.gov [DOE]

    The actual structural design of a photovoltaic (PV), or solar cell, depends on the limitations of the material used in the PV cell.

  17. Annual Report: Photovoltaic Subcontract Program FY 1991

    SciTech Connect (OSTI)

    Summers, K. A.

    1992-03-01T23:59:59.000Z

    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.

  18. Photovoltaics: Contract lists, fiscal year 1992

    SciTech Connect (OSTI)

    Not Available

    1993-03-01T23:59:59.000Z

    US DOE`s Photovoltaics Program has helped photovoltaic technologies evolve from materials and concepts in laboratories to competitive products rolling off automated assembly lines. The program is working to expand industrial capacity while continuing basic and applied technology R and D. This document is a tabulation of photovoltaics R and D that were begun, continued, or completed during this period. National laboratories or industrial, academic, and nonprofit research institutions perform the RR and D activities. The document is organized first by directing organization, then by project title and individual task. Each listing provides the name of contractor, period of performance, funding, objectives, accoplishments, and FY 1993 milestones. An index of contractors is included. (DLC)

  19. Photovoltaic Subcontract Program. Annual report, FY 1992

    SciTech Connect (OSTI)

    Not Available

    1993-03-01T23:59:59.000Z

    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.

  20. Fritz Technologies is a small company based in Sebastopol, California, specializing in information assurance and data security. Fritz has completed several contracts with the

    E-Print Network [OSTI]

    Ravikumar, B.

    Fritz Technologies is a small company based in Sebastopol, California, specializing in information office in Sebastopol, CA. Fritz Technologies is currently offering the following Internships for Sonoma

  1. 2.627 / 2.626 Fundamentals of Photovoltaics, Fall 2011

    E-Print Network [OSTI]

    Buonassisi, Tonio

    In this course, students learn about the fundamentals of photoelectric conversion: charge excitation, conduction, separation, and collection. Lectures cover commercial and emerging photovoltaic technologies and cross-cutting ...

  2. Project Profile: Plug-and-Play Solar Photovoltaics for American Homes

    Broader source: Energy.gov [DOE]

    Fraunhofer USA, Inc., Center for Sustainable Energy Systems and its partners, under the Plug-and-Play Photovoltaics FOA, are developing technologies, components, systems, and standards that enable...

  3. Practical Issues when Selecting PV Technologies (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2010-09-09T23:59:59.000Z

    Presentation highlighting practical considerations for photovoltaic technologies and strategies for future reductions in cost and increases in efficiency.

  4. E-Print Network 3.0 - advanced technology solar Sample Search...

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

    physics. Wafer silicon photovoltaic technology. Survey... Photovoltaics: Advanced Solar Energy Conversion, by M. A. Green (Springer, 2006) Solar Electricity, by T... Spring 2012...

  5. New Small Hydropower Technology to be Deployed in the United States

    SciTech Connect (OSTI)

    Hadjerioua, Boualem [ORNL; Opsahl, Egil [CleanPower AS; Gordon, Jim [Earth By Design Inc., EBD; Bishop, Norm [Knigth Piesold Co.

    2012-01-01T23:59:59.000Z

    Earth By Design Inc, (EBD), in collaboration with Oak Ridge National Laboratory (ORNL), Knight Pi sold and Co., and CleanPower AS, has responded to a Funding Opportunity Announcement (FOA) published by the Department of Energy (DOE) in April 2011. EBD submitted a proposal to install an innovative, small hydropower technology, the Turbinator, a Norwegian technology from CleanPower. The Turbinator combines an axial flow, fixed-blade Kaplan turbine and generator in a compact and sealed machine. This makes it a very simple and easy technology to be deployed and installed. DOE has awarded funding for this two-year project that will be implemented in Culver, Oregon. ORNL with the collaboration of CleanPower, will assess and evaluate the technology before and during the manufacturing phase and produce a full report to DOE. The goal of this phase-one report is to provide DOE Head Quarters (HQ), water power program management, a report with findings about the performance, readiness, capability, strengths and weakness, limitation of the technology, and potential full-scale deployment and application in the United States. Because of the importance of this information to the conventional hydropower industry and regulators, preliminary results will rapidly be distributed in the form of conference presentations, ORNL/DOE technical reports (publically available online, and publications in the peer-reviewed, scientific literature. These reports will emphasize the relevance of the activities carried out over the two-year study (i.e., performance, robustness, capabilities, reliability, and cost of the Turbinator). A final report will be submitted to a peer-reviewed publication that conveys the experimental findings and discusses their implications for the Turbinator application and implementation. Phase-two of the project consists of deployment, construction, and project operations. A detailed report on assessment and the performance of the project will be presented and communicated to DOE and published by ORNL.

  6. Photovoltaics industry profile

    SciTech Connect (OSTI)

    None

    1980-10-01T23:59:59.000Z

    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)

  7. Characterization of 3D Photovoltaics

    E-Print Network [OSTI]

    Characterization of 3D Photovoltaics SEMICONDUCTORS Our goal is to provide industry with test structures and models of next-generation photovoltaics, with an initial focus on cadmium telluride (Cd (nanostructured) photovoltaic devices. Objective Impact and Customers · The U.S. Photovoltaic Industry Roadmap

  8. Metallic nanostructures for optoelectronic and photovoltaic applications

    E-Print Network [OSTI]

    Lim, Swee Hoe

    2009-01-01T23:59:59.000Z

    enhanced performance of photovoltaic and photodetector Proc.and H. Wagner, in Photovoltaic Specialists Conference. ,for Optoelectronic and Photovoltaic Applications by Swee Hoe

  9. DISSERTATION DEVICE CHARACTERIZATION OF CADMIUM TELLURIDE PHOTOVOLTAICS

    E-Print Network [OSTI]

    Sites, James R.

    DISSERTATION DEVICE CHARACTERIZATION OF CADMIUM TELLURIDE PHOTOVOLTAICS Submitted by Russell M Reserved #12;ABSTRACT DEVICE CHARACTERIZATION OF CADMIUM TELLURIDE PHOTOVOLTAICS Thin-film photovoltaics

  10. Scattering Properties of nanostructures : applications to photovoltaics

    E-Print Network [OSTI]

    Derkacs, Daniel

    2009-01-01T23:59:59.000Z

    high-efficiency low- cost photovoltaic devices has been thehigh-efficiency low-cost photovoltaic devices has been theoverall per unit cost of photovoltaic modules. Module costs

  11. Automated Demand Response Technology Demonstration Project for Small and Medium Commercial Buildings

    E-Print Network [OSTI]

    Page, Janie

    2012-01-01T23:59:59.000Z

    Demand Response for Small Commercial Buildings.   Lawrence small?medium buildings’ roles in demand response  efforts.  demand response for small? medium commercial buildings 

  12. Photovoltaic procurement strategies: an assessment of supply issues

    SciTech Connect (OSTI)

    Posner, D.; Costello, D.

    1980-02-01T23:59:59.000Z

    This review report presents the results of an analysis of alternative approaches to the design of a federal photovoltaics procurement program. Advantages and disadvantages of large purchases at fixed prices and smaller purchases for testing and demonstrating the technology are presented. The objectives and possible impacts of these purchase programs on the photovoltaic industry are described. The reactions of the industry to alternative purchase programs were assessed using personal interviews with selected companies currently active in photovoltaics. The report begins with a review of the impacts of federal procurements on other innovations, including the electronics industry, and suggests the relation of these procurements to photovoltaics. The methodology for conducting the interviews is presented next. The results of the interviews are summarized into possible scenarios of future developments in the industry and into discussions of key issues in the design of a procurement program. An appendix on the current structure of the photovoltaic industry is provided.

  13. Photovoltaic energy: Contract list, fiscal year 1990

    SciTech Connect (OSTI)

    Not Available

    1991-07-01T23:59:59.000Z

    The federal government has conducted the National Photovoltaics Program since 1975. Its purpose is to provide focus, direction, and funding for the development of terrestrial photovoltaic technology as an energy option for the United States. In the past, a summary was prepared each year to provide an overview of the government-funded activities within the National Photovoltaics Program. Tasks conducted in-house by participating national laboratories or under contract by industrial, academic, and other research institutes were highlighted. This year's document is more concise than the summaries of previous years. The FY 1990 contract overview comprises a list of all subcontracts begun, ongoing, or completed by Sandia National Laboratory or the Solar Energy Research Institute during FY 1990 (October 1, 1989, through September 30, 1990). Under each managing laboratory, projects are listed alphabetically by project area and then by subcontractor name.

  14. Lessons Learned from the Photovoltaic Manufacturing Technology/PV Manufacturing R&D and Thin-Film PV Partnership Projects

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 LawrenceE C H NLenslessPhotovoltaic

  15. Calibration and Rating of Photovoltaics: Preprint

    SciTech Connect (OSTI)

    Emery, K.

    2012-06-01T23:59:59.000Z

    Rating the performance of photovoltaic (PV) modules is critical to determining the cost per watt, and efficiency is useful to assess the relative progress among PV concepts. Procedures for determining the efficiency for PV technologies from 1-sun to low concentration to high concentration are discussed. We also discuss the state of the art in primary and secondary calibration of PV reference cells used by calibration laboratories around the world. Finally, we consider challenges to rating PV technologies and areas for improvement.

  16. Nanophotonic design principles for ultrahigh efficiency photovoltaics Harry Atwater, Albert Polman, Emily Kosten, Dennis Callahan, Pierpaolo Spinelli, Carissa Eisler, Matthew

    E-Print Network [OSTI]

    Atwater, Harry

    Nanophotonic design principles for ultrahigh efficiency photovoltaics Harry Atwater, Albert Polman for ultrahigh efficiency photovoltaics Harry Atwater, 1,2 Albert Polman,2,1 , Emily Kosten, Dennis Callahan1 can enable ultrahigh efficiencies previously considered to be out of reach. Photovoltaic technology

  17. Photovoltaic module and interlocked stack of photovoltaic modules

    SciTech Connect (OSTI)

    Wares, Brian S.

    2014-09-02T23:59:59.000Z

    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.

  18. Organic photovoltaics and concentrators

    E-Print Network [OSTI]

    Mapel, Jonathan King

    2008-01-01T23:59:59.000Z

    The separation of light harvesting and charge generation offers several advantages in the design of organic photovoltaics and organic solar concentrators for the ultimate end goal of achieving a lower cost solar electric ...

  19. Photovoltaic Research Facilities

    Broader source: Energy.gov [DOE]

    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,...

  20. Organic Photovoltaics Research

    Broader source: Energy.gov [DOE]

    DOE funds research and development projects related to organic photovoltaics (OPV) due to the unique benefits it offers. Below are a list of the projects, summary of the benefits, and discussion on...

  1. Photovoltaic solar cell

    DOE Patents [OSTI]

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

    2013-11-26T23:59:59.000Z

    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.

  2. Photovoltaic solar cell

    DOE Patents [OSTI]

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

    2014-05-20T23:59:59.000Z

    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.

  3. Photovoltaic Cell Performance Basics

    Broader source: Energy.gov [DOE]

    Photovoltaic (PV), or solar cells use the energy in sunlight to produce electricity. However, the amount of electricity produced depends on the quality of the light available and the performance of the PV cell.

  4. Three-dimensional photovoltaics

    E-Print Network [OSTI]

    Myers, Bryan

    The concept of three-dimensional (3D) photovoltaics is explored computationally using a genetic algorithm to optimize the energy production in a day for arbitrarily shaped 3D solar cells confined to a given area footprint ...

  5. Nanocarbon-Based Photovoltaics

    E-Print Network [OSTI]

    Bernardi, Marco

    Carbon materials are excellent candidates for photovoltaic solar cells: they are Earth-abundant, possess high optical absorption, and maintain superior thermal and photostability. Here we report on solar cells with active ...

  6. Enhancement of the photovoltaic performance in P3HT: PbS hybrid solar cells using small size PbS quantum dots

    SciTech Connect (OSTI)

    Firdaus, Yuliar; Van der Auweraer, Mark, E-mail: mark.vanderauweraer@chem.kuleuven.be [Laboratory of Photochemistry and Spectroscopy, Division of Molecular Imaging and Photonics, Chemistry Department, KULeuven, Celestijnenlaan 200F, 2404, B-3001 Leuven (Belgium); Vandenplas, Erwin; Gehlhaar, Robert; Cheyns, David [Imec vzw, Kapeldreef 75, B-3001 Leuven (Belgium); Justo, Yolanda; Hens, Zeger [Physical Chemistry Laboratory, Ghent University, Krijgslaan 281-S3, 9000 Gent (Belgium)

    2014-09-07T23:59:59.000Z

    Different approaches of surface modification of the quantum dots (QDs), namely, solution-phase (octylamine, octanethiol) and post-deposition (acetic acid, 1,4-benzenedithiol) ligand exchange were used in the fabrication of hybrid bulk heterojunction solar cell containing poly (3-hexylthiophene) (P3HT) and small (2.4?nm) PbS QDs. We show that replacing oleic acid by shorter chain ligands improves the figures of merit of the solar cells. This can possibly be attributed to a combination of a reduced thickness of the barrier for electron transfer and an optimized phase separation. The best results were obtained for post-deposition ligand exchange by 1,4-benzenedithiol, which improves the power conversion efficiency of solar cells based on a bulk heterojunction of lead sulfide (PbS) QDs and P3HT up to two orders of magnitude over previously reported hybrid cells based on a bulk heterojunction of P3HT:PbS QDs, where the QDs are capped by acetic acid ligands. The optimal performance was obtained for solar cells with 69?wt.?% PbS QDs. Besides the ligand effects, the improvement was attributed to the formation of an energetically favorable bulk heterojunction with P3HT, when small size (2.4?nm) PbS QDs were used. Dark current density-voltage (J-V) measurements carried out on the device provided insight into the working mechanism: the comparison between the dark J-V characteristics of the bench mark system P3HT:PCBM and the P3HT:PbS blends allows us to conclude that a larger leakage current and a more efficient recombination are the major factors responsible for the larger losses in the hybrid system.

  7. Sandia National Laboratories: Photovoltaic Systems Evaluation...

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

    Modeling & Simulation, Energy, Facilities, News, News & Events, Partnership, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar...

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

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

    General Services Administration Photovoltaics Project in Sacramento, California General Services Administration Photovoltaics Project in Sacramento, California Document describes a...

  9. Office of Industry Research and Technology Programs Greetings to Industry

    E-Print Network [OSTI]

    Ginzel, Matthew

    Technologies in this issue. Includ- ed are technologies that involve synthetic liquid hydrocarbons, hydrogen bio-oil, crude distillation, chalcogenide nanoparticles, nanoparticle inks and photovoltaic printing (LEDs), photovoltaic (PV) cells, and batteries). Specifically, the ability to fabricate semiconducting

  10. High Penetration of Photovoltaic (PV) Systems into the Distribution Grid, Workshop Report, February 24-25, 2009

    SciTech Connect (OSTI)

    Not Available

    2009-06-01T23:59:59.000Z

    Outcomes from the EERE Solar Energy Technologies Program workshop on high penetration of photovoltaic (PV) systems into the distribution grid, Feb. 24-25, 2009, Ontario, Calif.

  11. Title: CEL Solar Photovoltaic Power Project in El Salvador Principal Investigator: Abbas Ghassemi

    E-Print Network [OSTI]

    Johnson, Eric E.

    Title: CEL Solar Photovoltaic Power Project in El Salvador Principal Investigator: Abbas Ghassemi solar resource, studying different technology options, anticipating performance, and evaluating the economics of the solar power technologies. The NMSU team is evaluating the potential environmental impacts

  12. Automated Demand Response Technology Demonstration Project for Small and Medium Commercial Buildings

    E-Print Network [OSTI]

    Page, Janie

    2012-01-01T23:59:59.000Z

    Sebastopol  .. temperature at the Sebastopol site . Rosa Convenience store Sebastopol Restaurant Novato Small

  13. Department of Energy: Photovoltaics program - FY 1996

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    The National Photovoltaic Program supports efforts to make PV an important part of the US economy through three main program elements: Research and Development, Technology Development, and Systems Engineering and Applications. (1) Research and Development activities generate new ideas, test the latest scientific theories, and push the limits of PV efficiencies in laboratory and prototype materials and devices. (2) Technology Development activities apply laboratory innovations to products to improve PV technology and the manufacturing techniques used to produce PV systems for the market. (3) Systems Engineering and Applications activities help improve PV systems and validate these improvements through tests, measurements, and deployment of prototypes. In addition, applications research validates, sales, maintenance, and financing mechanisms worldwide. (4) Environmental, Health, Safety and Resource Characterization activities help to define environmental, health and safety issues for those facilities engaged in the manufacture of PV products and organizations engaged in PV research and development. All PV Program activities are planned and executed in close collaboration and partnership with the U.S. PV industry. The overall PV Program is planned to be a balanced effort of research, manufacturing development, and market development. Critical to the success of this strategy is the National Photovoltaic Program`s effort to reduce the cost of electricity generated by photovoltaic. The program is doing this in three primary ways: by making devices more efficient, by making PV systems less expensive, and by validating the technology through measurements, tests, and prototypes.

  14. Thermionic-photovoltaic energy converter

    SciTech Connect (OSTI)

    Chubb, D. L.

    1985-07-09T23:59:59.000Z

    A thermionic-photovoltaic energy conversion device comprises a thermionic diode mounted within a hollow tubular photovoltaic converter. The thermionic diode maintains a cesium discharge for producing excited atoms that emit line radiation in the wavelength region of 850 nm to 890 nm. The photovoltaic converter is a silicon or galium arsenide photovoltaic cell having bandgap energies in this same wavelength region for optimum cell efficiency.

  15. Nanowires enabling strained photovoltaics

    SciTech Connect (OSTI)

    Greil, J.; Bertagnolli, E.; Lugstein, A., E-mail: alois.lugstein@tuwien.ac.at [Institute of Solid State Electronics, Vienna University of Technology, Floragasse 7, 1040 Vienna (Austria); Birner, S. [nextnano GmbH, Südmährenstr. 21, 85586 Poing (Germany)

    2014-04-21T23:59:59.000Z

    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.

  16. Concentrating photovoltaic solar panel

    DOE Patents [OSTI]

    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

    2014-04-15T23:59:59.000Z

    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.

  17. Solar Photovoltaic Capacity F t P f d P li

    E-Print Network [OSTI]

    6/19/2013 1 Solar Photovoltaic ­ Capacity F t P f d P li Generating Resources Advisory Committee Advisor Model (SAM), version 2013.1.15 Technology: Solar PV (PVWatts system model)Technology: Solar PV (MWh) (First year output, each year thereafter degrades 0.5%) 6 #12;6/19/2013 4 Shape of PNW Solar PV

  18. Photovoltaic Module Reliability Workshop 2010: February 18-19, 2010

    SciTech Connect (OSTI)

    Kurtz, J.

    2013-11-01T23:59:59.000Z

    NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

  19. Photovoltaic Module Reliability Workshop 2014: February 25-26, 2014

    SciTech Connect (OSTI)

    Kurtz, S.

    2014-02-01T23:59:59.000Z

    NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

  20. Photovoltaic Module Reliability Workshop 2011: February 16-17, 2011

    SciTech Connect (OSTI)

    Kurtz, S.

    2013-11-01T23:59:59.000Z

    NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

  1. Photovoltaic Module Reliability Workshop 2012: February 28 - March 1, 2012

    SciTech Connect (OSTI)

    Kurtz, S.

    2013-11-01T23:59:59.000Z

    NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

  2. Photovoltaic Module Reliability Workshop 2013: February 26-27, 2013

    SciTech Connect (OSTI)

    Kurtz, S.

    2013-10-01T23:59:59.000Z

    NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

  3. Small Business Innovation Research (SBIR) and Small Business...

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

    Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) An...

  4. Photovoltaic radiation detector element

    DOE Patents [OSTI]

    Agouridis, D.C.

    1980-12-17T23:59:59.000Z

    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. Multiple gap photovoltaic device

    DOE Patents [OSTI]

    Dalal, Vikram L. (Newark, DE)

    1981-01-01T23:59:59.000Z

    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.

  6. Thin film photovoltaic cell

    DOE Patents [OSTI]

    Meakin, John D. (Newark, DE); Bragagnolo, Julio (Newark, DE)

    1982-01-01T23:59:59.000Z

    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.

  7. PHOTOVOLTAICS AND COMMERCIAL BUILDINGS--

    E-Print Network [OSTI]

    Perez, Richard R.

    management of electricity demand. · PV applications are now being integrated directly into building roofs, Valuation of Demand-Side Commercial PV Systems in the United States, we sought to measure the costPHOTOVOLTAICS AND COMMERCIAL BUILDINGS-- A NATURAL MATCH A study highlighting strategic

  8. Photovoltaic Forecasting: A state of the art B. Espinar, J.L. Aznarte, R. Girard, A.M. Moussa and G. Kariniotakis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Photovoltaic Forecasting: A state of the art B. Espinar, J.L. Aznarte, R. Girard, A.M. Moussa and G(0)493678967; FAX: +33 (0)493957535,bella.espinar@mines-paristech.fr Abstract Photovoltaic (PV) energy, together Introduction Photovoltaics (PV) for electricity generation is the fastest-growing energy technology since 2002

  9. Automated Demand Response Technology Demonstration Project for Small and Medium Commercial Buildings

    E-Print Network [OSTI]

    Page, Janie

    2012-01-01T23:59:59.000Z

    following participants, vendors and the reviewers:  Paul sites, enabled by eight vendors, participated in at least technologies provided by vendors can receive and translate 

  10. Technology demonstration for reducing mercury emissions from small-scale gold refining facilities.

    SciTech Connect (OSTI)

    Habegger, L. J.; Fernandez, L. E.; Engle, M.; Bailey, J. L.; Peterson, D. P.; MacDonell, M. M.; U.S. Environmental Protection Agency

    2008-06-30T23:59:59.000Z

    Gold that is brought from artisanal and small-scale gold mining areas to gold shops for processing and sale typically contains 5-40% mercury. The uncontrolled removal of the residual mercury in gold shops by using high-temperature evaporation can be a significant source of mercury emissions in urban areas where the shops are located. Emissions from gold shop hoods during a burn can exceed 1,000 mg/m{sup 3}. Because the saturation concentration of mercury vapor at operating temperatures at the hood exhaust is less than 100 mg/m{sup 3}, the dominant component of the exhaust is in the form of aerosol or liquid particles. The U.S. Environmental Protection Agency (EPA), with technical support from Argonne National Laboratory (Argonne), has completed a project to design and test a technology to remove the dominant aerosol component in the emissions from gold shops. The objective was to demonstrate a technology that could be manufactured at low cost and by using locally available materials and manufacturing capabilities. Six prototypes designed by Argonne were locally manufactured, installed, and tested in gold shops in Itaituba and Creporizao, Brazil. The initial prototype design incorporated a pebble bed as the media for collecting the mercury aerosols, and a mercury collection efficiency of over 90% was demonstrated. Though achieving high efficiencies, the initial prototype was determined to have practical disadvantages such as excessive weight, a somewhat complex construction, and high costs (>US$1,000). To further simplify the construction, operation, and associated costs, a second prototype design was developed in which the pebble bed was replaced with slotted steel baffle plates. The system was designed to have flexibility for installation in various hood configurations. The second prototype with the baffle plate design was installed and tested in several different hood/exhaust systems to determine the optimal installation configuration. The significance of coagulation and collection of the mercury aerosols in exhaust ducts, which is dependent on the hood and collector configuration, was also evaluated. Prototype demonstration tests verified the theoretical basis for mercury aerosol capture that can be used to optimize the baffle plate design, flow rates, and hood exhaust ducts and plenum to achieve 80% or higher removal efficiencies. Results indicated that installation configuration significantly influences a system's capture efficiency. Configurations that retained existing inlet ducts resulted in system efficiencies of more than 80%, whereas installation configurations without inlet ducts significantly reduced capture efficiency. As an alternative to increasing the volume of inlet ducts, the number of baffle plates in the system baffle assembly could be doubled to increase efficiency. Recommended installation and operation procedures were developed on the basis of these results. A water-based mercury capture system developed in Indonesia for installation in smaller shops was also tested and shown to be effective for certain applications. The cost of construction and installation of the baffle plate prototype was approximately US$400. These costs were reported as acceptable by local gold shop owners and government regulators, and were significantly lower than the cost of an alternate charcoal/copper mesh mercury filter available in the region, which costs about US$10,000. A sampling procedure that consists of a particle filter combined with a vapor analyzer was demonstrated as an effective procedure for analyzing both the aerosol and vapor components of the mercury concentrations. Two key findings for enhancing higher mercury collection were identified. First, the aerosol/vapor mercury emissions must be given sufficient time for the mercury particles to coagulate to a size that can be readily captured by the baffle plates. An interval of at least 6 seconds of transit time between the point of evaporation and contact with the slotted baffle plates is recommended. Some particles will also deposit in the exhaust ducts

  11. Working with the National Center of Photovoltaics (NCPV) (Revised) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-06-01T23:59:59.000Z

    Capabilities fact sheet for the National Center for Photovoltaics: Working with the National Center for Photovoltaics. One-sided sheet that includes projects in various areas: Technology Pathway Partnerships, CRADAs, Incubator Program, Pre-Incubator Program, Universities, Next-Generation Program, and NREL T&E.

  12. A Distributed Approach to Maximum Power Point Tracking for Photovoltaic Sub-Module Differential

    E-Print Network [OSTI]

    Liberzon, Daniel

    of the proposed distributed algorithm. I. INTRODUCTION IN photovoltaic (PV) energy systems, PV modules are often of the system, small size and low power ratings of the power electronics circuit components. Due1 A Distributed Approach to Maximum Power Point Tracking for Photovoltaic Sub-Module Differential

  13. Photovoltaics for demand-side management: Opportunities for early commercialization

    SciTech Connect (OSTI)

    Byrne, J.; Letendre, S.; Govindarajalu, C.; Wang, Y.D. [Univ. of Delaware, Newark, DE (United States). Center for Energy and Environmental Policy; Nigro, R. [Delmarva Power, Newark, DE (United States); Wallace, W. [National Renewable Energy Lab., Golden, CO (United States)

    1995-10-01T23:59:59.000Z

    Recently, interest in utilizing photovoltaics (PV) in a demand-side management (DSM) role has been increasing. Research has shown that many utilities across the US have a good match between peak loads and the availability of the solar resource. Maximum value for PV in DSM applications can be achieved by incorporating a dispatching capability to PV systems (through the addition of storage). This enables utilities to evaluate PV systems as a peak-shaving technology. To date, peak-shaving has been a high-value DSM application for US utilities. The authors analysis of the value of dispatchable PV-DSM systems indicates that small-scale, customer-sited systems are approaching competitive cost levels in several regions of the US that have favorable load matching and high demand charges. This paper presents the results of an economic analysis for high-value PV-DSM systems located in the service territories of five case study utilities. The results suggest that PV is closer to commercialization when viewed as a DSM technology relative to analyses that focus on the technology as a supply-side option.

  14. Group specific internal standard technology (GSIST) for simultaneous identification and quantification of small molecules

    DOE Patents [OSTI]

    Adamec, Jiri; Yang, Wen-Chu; Regnier, Fred E

    2014-01-14T23:59:59.000Z

    Reagents and methods are provided that permit simultaneous analysis of multiple diverse small molecule analytes present in a complex mixture. Samples are labeled with chemically identical but isotopically distince forms of the labeling reagent, and analyzed using mass spectrometry. A single reagent simultaneously derivatizes multiple small molecule analytes having different reactive functional groups.

  15. Power Electronics and Balance of System Hardware Technologies

    Broader source: Energy.gov [DOE]

    DOE is targeting solar technology improvements related to power electronics and balance of system (BOS) hardware technologies to reduce the installed cost of solar photovoltaic (PV) electricity and...

  16. Photovoltaic module and interlocked stack of photovoltaic modules

    SciTech Connect (OSTI)

    Wares, Brian S.

    2012-09-04T23:59:59.000Z

    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.

  17. Low-Cost Installation of Concentrating Photovoltaic

    E-Print Network [OSTI]

    Low-Cost Installation of Concentrating Photovoltaic Renewable Energy Research Renewable Energy inhibit the potential growth of the California photovoltaic market: high installation costs, expenses improvements have been made in recent years on the assembly and deployment of flatplate photovoltaic

  18. Scattering Properties of nanostructures : applications to photovoltaics

    E-Print Network [OSTI]

    Derkacs, Daniel

    2009-01-01T23:59:59.000Z

    Arya, D. Carlson, Prog. Photovoltaics 10, p. 69 (2002). K.and J. Bailat, Prog. in Photovoltaics 12 , 113 (2004). M.and A. Mart?´, Progress in Photovoltaics 9, p. 73 (2001). S.

  19. Temperature compensated photovoltaic array

    DOE Patents [OSTI]

    Mosher, D.M.

    1997-11-18T23:59:59.000Z

    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.

  20. Temperature compensated photovoltaic array

    DOE Patents [OSTI]

    Mosher, Dan Michael (Plano, TX)

    1997-11-18T23:59:59.000Z

    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.

  1. Photovoltaics for Residential Buildings Webinar

    Broader source: Energy.gov [DOE]

    A webinar by National Renewable Energy Laboratory (NREL) Senior Engineer Otto VanGeet on using solar photovoltaic (PV) systems to provide electricity for homes.

  2. EROI of crystalline silicon photovoltaics.

    E-Print Network [OSTI]

    Lundin, Johan

    2013-01-01T23:59:59.000Z

    ?? Installed photovoltaic nameplate power have been growing rapidly around the worldin the last few years. But how much energy is returned to society (i.e.… (more)

  3. Photovoltaic-thermal collectors

    DOE Patents [OSTI]

    Cox, III, Charles H. (Carlisle, MA)

    1984-04-24T23:59:59.000Z

    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.

  4. Frequencies Studies Applied to Photovoltaic Modules.

    E-Print Network [OSTI]

    Miquel, Clément

    2011-01-01T23:59:59.000Z

    ?? This master thesis proposes to study applications of frequencies studies to the case of photovoltaic modules and photovoltaic plants. Such studies are little used… (more)

  5. Sandia National Laboratories: Photovoltaic Systems Evaluation...

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

    Energy On May 1, 2013, in DETL, Energy, Facilities, News, News & Events, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar...

  6. Organic Photovoltaics Experiments Showcase 'Superfacility' Research

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

    Organic Photovoltaics Experiments Showcase 'Superfacility' Concept Organic Photovoltaics Experiments Showcase 'Superfacility' Concept Collaboration Key to Enabling On-The-Fly HPC...

  7. E-Print Network 3.0 - advanced conversion technologies Sample...

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

    Professor Meng Tao Course Description... for solar energy utilization. Review of solar cell physics. Wafer silicon photovoltaic technology. ... Source: Collection:...

  8. Photovoltaic Systems, the experience curve, and learning by doing : who is learning and what are they doing?

    E-Print Network [OSTI]

    Colatat, Phech C

    2009-01-01T23:59:59.000Z

    The photovoltaics industry has been growing at extraordinary rates over the past ten years as a result of increased government support for the technology. Yet supporting the technology is expensive and there is uncertainty ...

  9. Cooperative Monitoring Center Occasional Paper/16: The Potential of Technology for the Control of Small Weapons: Applications in Developing Countries

    SciTech Connect (OSTI)

    ALTMANN, JURGEN

    2000-07-01T23:59:59.000Z

    For improving the control of small arms, technology provides many possibilities. Present and future technical means are described in several areas. With the help of sensors deployed on the ground or on board aircraft, larger areas can be monitored. Using tags, seals, and locks, important objects and installations can be safeguarded better. With modern data processing and communication systems, more information can be available, and it can be more speedily processed. Together with navigation and transport equipment, action can be taken faster and at greater range. Particular considerations are presented for cargo control at roads, seaports, and airports, for monitoring designated lines, and for the control of legal arms. By starting at a modest level, costs can be kept low, which would aid developing countries. From the menu of technologies available, systems need to be designed for the intended application and with an understanding of the local conditions. It is recommended that states start with short-term steps, such as acquiring more and better radio transceivers, vehicles, small aircraft, and personal computers. For the medium term, states should begin with experiments and field testing of technologies such as tags, sensors, and digital communication equipment.

  10. A uniform economic valuation methodology for solar photovoltaic applications competing in a utility environment

    E-Print Network [OSTI]

    Carpenter, Paul R.

    1978-01-01T23:59:59.000Z

    The question of how the economic benefits of weather-dependent electric generation technologies should be measured is addressed, with specific reference to dispersed, user-owned photovoltaic systems. The approach to ...

  11. Control of Stand-Alone Photovoltaic System Using Fuzzy-Logic Controller

    E-Print Network [OSTI]

    Mellit, A.; Benghanme, M.; Arab, A. H.; Guessoum, A.

    2004-01-01T23:59:59.000Z

    With industrial development the problem of energy shortage is more and more aggravating. The photovoltaic (PV) systems are rapidly expanding and have increasing in electric power technology and regarded as the green energy of the new century control...

  12. Synthesis of Titanium Dioxide Hetero-Structures for Photovoltaic Energy Conversion

    E-Print Network [OSTI]

    Park, Jongbok

    2010-10-12T23:59:59.000Z

    The photovoltaic energy conversion system (PV cells or solar cells) has been researched over the last few decades, and new technologies have been proposed. At the same time, the synthesis of nano-scale materials has been investigated intensively...

  13. Design and implementation of a continuous improvement framework for an organic photovoltaic panels manufacturer

    E-Print Network [OSTI]

    Colaci, Gregorio

    2011-01-01T23:59:59.000Z

    The MIT MEng Team worked at Konarka Technologies, the world leader organic photovoltaic panels (OPV) manufacturer, on several improvement projects. The concentration was on operations improvement as well as production ...

  14. Implementations of electric vehicle system based on solar energy in Singapore : assessment of solar photovoltaic systems

    E-Print Network [OSTI]

    Sun, Li

    2009-01-01T23:59:59.000Z

    To evaluate the feasibility of solar energy based Electric Vehicle Transportation System in Singapore, the state of the art Photovoltaic Systems have been reviewed in this report with a focus on solar cell technologies. ...

  15. Where solar thermal meets photovoltaic for high-efficiency power conversion

    E-Print Network [OSTI]

    Bierman, David M. (David Matthew)

    2014-01-01T23:59:59.000Z

    To develop disruptive techniques which generate power from the Sun, one must understand the aspects of existing technologies that limit performance. Solar thermal and solar photovoltaic schemes dominate today's solar market ...

  16. The economic impact of state ordered avoided cost rates for photovoltaic generated electricity

    E-Print Network [OSTI]

    Bottaro, Drew

    1981-01-01T23:59:59.000Z

    The Public Utility Regulatory Policies Act (PURPA) of 1978 requires that electric utilities purchase electricity generated by small power producers (QFs) such as photovoltaic systems at rates that will encourage the ...

  17. Graphite-based photovoltaic cells

    DOE Patents [OSTI]

    Lagally, Max (Madison, WI); Liu, Feng (Salt Lake City, UT)

    2010-12-28T23:59:59.000Z

    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.

  18. ENERGY EFFICIENCY TECHNOLOGY ROADMAP

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

    l d i n g D e s i g n E n v e l o p e R&D Program Summaries Effective, cost competitive solar shingles. Building-integrated photovoltaic (PV) technologies helps make solar power...

  19. Thin film photovoltaic device

    DOE Patents [OSTI]

    Catalano, A.W.; Bhushan, M.

    1982-08-03T23:59:59.000Z

    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.

  20. Thin film photovoltaic device

    DOE Patents [OSTI]

    Catalano, Anthony W. (Wilmington, DE); Bhushan, Manjul (Wilmington, DE)

    1982-01-01T23:59:59.000Z

    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.

  1. Bracket for photovoltaic modules

    DOE Patents [OSTI]

    Ciasulli, John; Jones, Jason

    2014-06-24T23:59:59.000Z

    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.

  2. Photovoltaic Degradation Risk: Preprint

    SciTech Connect (OSTI)

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

    2012-04-01T23:59:59.000Z

    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.

  3. Photovoltaics in the Classroom

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory and Modeling Los Alamos National Laboratory

  4. Sandia National Laboratories: Photovoltaics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolar Regional Test Center in VermontContactPhotovoltaics PV

  5. Sandia National Laboratories: Photovoltaics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolar Regional Test Center in VermontContactPhotovoltaics PVTutorial

  6. Sandia National Laboratories: Photovoltaics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolar Regional Test Center in VermontContactPhotovoltaics

  7. Sandia National Laboratories: Photovoltaics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolar Regional Test Center in VermontContactPhotovoltaicsUtility

  8. Sandia National Laboratories: photovoltaic

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted for USMaterialsthe GoalMicrosystems Enabled Photovoltaics (MEPV)

  9. Sandia National Laboratories: photovoltaic

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted for USMaterialsthe GoalMicrosystems Enabled Photovoltaics

  10. Sandia National Laboratories: photovoltaic

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted for USMaterialsthe GoalMicrosystems Enabled Photovoltaics2013 PV

  11. Sandia National Laboratories: photovoltaic

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted for USMaterialsthe GoalMicrosystems Enabled Photovoltaics2013

  12. Photovoltaic Degradation Rates -- An Analytical Review

    SciTech Connect (OSTI)

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

    2012-06-01T23:59:59.000Z

    As photovoltaic penetration of the power grid increases, accurate predictions of return on investment require accurate prediction of decreased power output over time. Degradation rates must be known in order to predict power delivery. This article reviews degradation rates of flat-plate terrestrial modules and systems reported in published literature from field testing throughout the last 40 years. Nearly 2000 degradation rates, measured on individual modules or entire systems, have been assembled from the literature, showing a median value of 0.5%/year. The review consists of three parts: a brief historical outline, an analytical summary of degradation rates, and a detailed bibliography partitioned by technology.

  13. Photovoltaics: From the laboratory to the marketplace

    SciTech Connect (OSTI)

    Basso, T.S.; Surek, T.; Thornton, J.

    1991-03-01T23:59:59.000Z

    Photovoltaics (PV), the direct conversion of sunlight to electricity, is experiencing significant improvements in technology performance and lowered costs. Fostering these improvements, the SERI Photovoltaic Advanced Research and Development (PV AR D) Project supports research and provides services to the US PV industry. This paper presents the recent advances and future direction of the PV project. Research areas are Fundamental and Supporting Research, Advanced Thin-Film Materials, High-Efficiency Materials, Module Development, and Systems Development. Materials of interest include amorphous silicon, copper indium diselenide, cadmium telluride, crystalline silicon, gallium arsenide and related alloys, transparent conductors, antireflection coatings, substrates, and encapsulants. The PV project inherently provides technology transfer that helps industry shorten the time to bring R D advances to the marketplace. SERI annually performs over 10,000 measurements for the entire PV community, participates in collaborative research, and welcomes visiting scientists. Two specific areas of recently increased national focus are: (1) manufacturing processes for cost-effective PV modules, and (2) systems development for high-value utility applications. The SERI research approach is based on facilitating direct contact between industry, electric utilities, and others interested in PV technology. This approach heavily relies on SERI/industry partnerships. The arrangements vary to address generic and company-specific problems to improve the US industry's competitive position and accelerate greater electric utility deployment of PV systems. 5 refs., 5 figs., 6 tabs.

  14. Progress in photovoltaic system and component improvements

    SciTech Connect (OSTI)

    Thomas, H.P.; Kroposki, B.; McNutt, P.; Witt, C.E. [National Renewable Energy Lab., Golden, CO (United States); Bower, W.; Bonn, R.; Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States)

    1998-07-01T23:59:59.000Z

    The Photovoltaic Manufacturing Technology (PVMaT) project is a partnership between the US government (through the US Department of Energy [DOE]) and the PV industry. Part of its purpose is to conduct manufacturing technology research and development to address the issues and opportunities identified by industry to advance photovoltaic (PV) systems and components. The project was initiated in 1990 and has been conducted in several phases to support the evolution of PV industrial manufacturing technology. Early phases of the project stressed PV module manufacturing. Starting with Phase 4A and continuing in Phase 5A, the goals were broadened to include improvement of component efficiency, energy storage and manufacturing and system or component integration to bring together all elements for a PV product. This paper summarizes PV manufacturers` accomplishments in components, system integration, and alternative manufacturing methods. Their approaches have resulted in improved hardware and PV system performance, better system compatibility, and new system capabilities. Results include new products such as Underwriters Laboratories (UL)-listed AC PV modules, modular inverters, and advanced inverter designs that use readily available and standard components. Work planned in Phase 5A1 includes integrated residential and commercial roof-top systems, PV systems with energy storage, and 300-Wac to 4-kWac inverters.

  15. Photovoltaic Product Directory and Buyers Guide

    SciTech Connect (OSTI)

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

    1984-04-01T23:59:59.000Z

    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)

  16. Financing Non-Residential Photovoltaic Projects: Options and Implications

    E-Print Network [OSTI]

    Bolinger, Mark

    2009-01-01T23:59:59.000Z

    Coggeshall. 2008. Solar Photovoltaic Financing: DeploymentEconomics of Commercial Photovoltaic Systems in California.Financing Non-Residential Photovoltaic Projects: Options and

  17. Soiling losses for solar photovoltaic systems in California

    E-Print Network [OSTI]

    Mejia, Felipe A; Kleissl, Jan

    2013-01-01T23:59:59.000Z

    on Large Grid-Connected Photovoltaic Systems in Californiaof Dust on Solar Photovoltaic (PV) Performance: Researchclimatology in design of photovoltaic systems. In: Markvart

  18. Statistical Methods for Enhanced Metrology in Semiconductor/Photovoltaic Manufacturing

    E-Print Network [OSTI]

    Zeng, Dekong

    2012-01-01T23:59:59.000Z

    and Simulation of Photovoltaic Arrays. ” IEEE Trans. PowerSolar Cell Variability Photovoltaic (PV) cells manufacturedmodeling method for photovoltaic cells. ” in Proc. IEEE 35th

  19. Charge transport in hybrid nanorod-polymer composite photovoltaic cells

    E-Print Network [OSTI]

    Huynh, Wendy U.; Dittmer, Janke J.; Teclemariam, Nerayo; Milliron, Delia; Alivisatos, A. Paul; Barnham, Keith W.J.

    2002-01-01T23:59:59.000Z

    circuit diagram for a photovoltaic cell under illumination.Polymer Composite Photovoltaic Cells Wendy U. Huynh ‡ ,devices such as photovoltaic cells and light-emitting-

  20. Structure-Function Relationships in Semiconducting Polymers for Organic Photovoltaics

    E-Print Network [OSTI]

    Kavulak, David Fredric Joel

    2010-01-01T23:59:59.000Z

    Photovoltaic Cell .the materials, all photovoltaic cells operate on the basicEquation 1.2) For photovoltaic cells of all kinds and from

  1. Statistical Methods for Enhanced Metrology in Semiconductor/Photovoltaic Manufacturing

    E-Print Network [OSTI]

    Zeng, Dekong

    2012-01-01T23:59:59.000Z

    modeling method for photovoltaic cells. ” in Proc. IEEE 35thlosses in solar photovoltaic cell networks. ” Energy 32:Cell Variability Photovoltaic (PV) cells manufactured with

  2. Fabrication and Characterization of Organic/Inorganic Photovoltaic Devices

    E-Print Network [OSTI]

    Guvenc, Ali Bilge

    2012-01-01T23:59:59.000Z

    and their influence on photovoltaic cells, Solar EnergyPhotodiodes, and Photovoltaic Cells, Applied Physics LettersHeeger, Polymer Photovoltaic Cells - Enhanced Efficiencies

  3. The Market Value and Cost of Solar Photovoltaic Electricity Production

    E-Print Network [OSTI]

    Borenstein, Severin

    2008-01-01T23:59:59.000Z

    Production of Solar Photovoltaic Cells”, Center for theconcerns is solar photovoltaic cells (PVs), which captureProduction of Solar Photovoltaic Cells Solar PV cells

  4. Tariffs Can Be Structured to Encourage Photovoltaic Energy

    E-Print Network [OSTI]

    Wiser, Ryan

    2009-01-01T23:59:59.000Z

    Be Structured to Encourage Photovoltaic Energy Ryan Wiser,of customer-sited photovoltaic (PV) systems. Though theseEconomics of Commercial Photovoltaic Systems in California,

  5. Fabrication and Characterization of Organic/Inorganic Photovoltaic Devices

    E-Print Network [OSTI]

    Guvenc, Ali Bilge

    2012-01-01T23:59:59.000Z

    J. W. Yu, Organic photovoltaic devices with a crosslinkablein Nanostructured Photovoltaic Devices, Recent Patents oninterfaces in organic photovoltaic devices, Solar Energy

  6. Effects of solar photovoltaic panels on roof heat transfer

    E-Print Network [OSTI]

    Dominguez, Anthony; Kleissl, Jan; Luvall, Jeffrey C

    2011-01-01T23:59:59.000Z

    the energy performance of  photovoltaic roofs, ASHRAE Trans A thermal model for photovoltaic systems, Solar Energy, Effects of Solar Photovoltaic Panels on Roof Heat Transfer 

  7. Learning by doing: The evolution of state support for photovoltaics

    E-Print Network [OSTI]

    Bolinger, Mark; Wiser, Ryan

    2003-01-01T23:59:59.000Z

    of State Support for Photovoltaics Mark Bolinger and Ryantarget the installation of photovoltaics (PV) in one way orwidespread popularity of photovoltaics (PV), along with its

  8. Optically Functional Nanomaterials: Optothermally Responsive Composites and Carbon Nanotube Photovoltaics

    E-Print Network [OSTI]

    Okawa, David

    2010-01-01T23:59:59.000Z

    and Carbon Nanotube Photovoltaics by David Christopher OkawaPart II: Carbon Nanotube Photovoltaics Chapter 6:Carbon Nanotube – Polymer Photovoltaics 6.1 Polymer-Nanotube

  9. The Development of Semiconducting Materials for Organic Photovoltaics

    E-Print Network [OSTI]

    Douglas, Jessica D.

    2013-01-01T23:59:59.000Z

    F. C. ; Norrman, K. Prog. Photovoltaics 2007, 15, 697–712.Processed Organic Photovoltaics that Generate Chargepolymer-based organic photovoltaics (OPVs) have attracted

  10. Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics

    E-Print Network [OSTI]

    Padilla, Derek

    2013-01-01T23:59:59.000Z

    4.4 Photovoltaics in Practice . . . . . . . . . . . . . .milestones. Quantum dot photovoltaics is in the bottom-rightIN QUANTUM DOT PHOTOVOLTAICS A dissertation submitted in

  11. Structure-Function Relationships in Semiconducting Polymers for Organic Photovoltaics

    E-Print Network [OSTI]

    Kavulak, David Fredric Joel

    2010-01-01T23:59:59.000Z

    properties for organic photovoltaics (OPVs). Space-chargePolymers for Organic Photovoltaics By David Fredric JoelPolymers for Organic Photovoltaics by David Fredric Joel

  12. Comment on "coherence and uncertainty in nanostructured organic photovoltaics"

    E-Print Network [OSTI]

    Mukamel, S

    2013-01-01T23:59:59.000Z

    provide new probes for photovoltaics. The develop- ment ofin Nanostructured Organic Photovoltaics. J. Phys. Chem. Lettin Nanostructured Organic Photovoltaics” Shaul Mukamel

  13. The Market Value and Cost of Solar Photovoltaic Electricity Production

    E-Print Network [OSTI]

    Borenstein, Severin

    2008-01-01T23:59:59.000Z

    Investigation of Photovoltaic Cost Trends in California,”The Market Value and Cost of Solar Photovoltaic ElectricityThe Market Value and Cost of Solar Photovoltaic Electricity

  14. NREL Center for Photovoltaics

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    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

  15. Biomonitoring for the photovoltaics industry

    SciTech Connect (OSTI)

    Bernholc, N.M.; Moskowitz, P.D.

    1995-07-01T23:59:59.000Z

    Biomonitoring often is used as a method for estimating the dose to an individual. Therefore, a parameter of measurement, or biomarkers must be identified. The purpose of this paper is to give an overview of biomonitoring protocols for metals used in the photovoltaics industry. Special attention is given to areas that often are skimmed over, to gain insights into some of the problems that may arise when these tasks are carried out. Biological monitoring can be used to determine current human exposures to chemicals, as well as to detect past exposures, and the effects that these exposures may have on human health. It is used in conjunction with environmental monitoring to describe more completely worker`s exposures to, and absorption of, chemicals in the workplace. Biological specimens (e.g., blood, hair or urine) are analyzed for chemical agents, metabolites, or for some specific effect on the person (Lowry 1994). Biomonitoring can assess a workers exposure to industrial chemicals by all routes including skin absorption and ingestion. Although the methodology still is in its infancy, in cases where the procedures have been developed, it can be an invaluable component of an ongoing program of industrial hygiene monitoring. Like any technology, there are limitations to its effectiveness because of a lack of knowledge, contamination of specimens, and the introduction of errors.

  16. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE JOURNAL OF PHOTOVOLTAICS 1

    E-Print Network [OSTI]

    Atwater, Harry

    as presented, with the exception of pagination. IEEE JOURNAL OF PHOTOVOLTAICS 1 Wafer-Scale Growth of Silicon Microwire Arrays for Photovoltaics and Solar Fuel Generation Adele C. Tamboli, Member, IEEE, Christopher T-efficiency photovoltaics and pho- toelectrochemical fuel generation. A remaining challenge to mak- ing this technology

  17. Photovoltaic module with adhesion promoter

    DOE Patents [OSTI]

    2013-10-08T23:59:59.000Z

    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.

  18. Photovoltaic industry progress through 1984

    SciTech Connect (OSTI)

    Watts, R.L.; Smith, S.A.; Dirks, J.A.

    1985-04-01T23:59:59.000Z

    The growth of the US photovoltaics (PV) industry over the past decade has been impressive. First designed to provide power for satellites using high-cost production techniques, PV is now the economical choice in many remote terrestrial applications. The remarkable growth of PV in terms of quality of cells and modules, production techniques, and system design, was initiated by a cooperative effort of the US Government and the domestic PV manufacturers. European and Japanese firms entered the PV industry later, but are also growing rapidy. The Europeans continue to supply PV systems for village electrification and water pumping to many Third World countries. The Japanese have been developing the amorphous silicon (A-Si) technology by expanding its use in consumer goods. The world PV industry saw dramatic changes in industry ownership and in the emphasis on developing new and improved technology during 1984. The objective of this report is to present information on the developments of the world PV industry and focuses on developments occurring in 1984. Information is presented on a regional basis (US, Europe, Japan, other) to avoid disclosing company-confidential data. All information was gleaned from several sources, including a review of the technical literature and direct contacts with PV manufacturers. Prior to publishing the regional totals, all numbers were compared with those of other sources. The information contained in this report is prepared for use by the Department of Energy for their use in long-term R and D planning. However, this information should also be of interest by PV manufacturers and to those who may be contemplating entering the PV market. PV shipments for 1984, government supports for PV, and various PV market sectors are discussed.

  19. PVMaT cost reductions in the EFG high volume PV manufacturing line: Annual report, 5 August 1998--4 August 1999[PhotoVoltaic Manufacturing Technology, Edge-defined Film-fed Growth

    SciTech Connect (OSTI)

    Bathey, B.; Brown, B.; Cao, J.; Ebers, S.; Gonsiorawski, R.; Heath, B.; Kalejs, J.; Kardauskas, M.; Mackintosh, B.; Ouellette, M.; Piwczyk, B.; Rosenblum, M.; Southimath, B.

    1999-11-16T23:59:59.000Z

    This report describes work performed by ASE Americas researchers during the first year of this Photovoltaic Manufacturing Technology 5A2 program. Significant accomplishments in each of three task are as follows. Task 1--Manufacturing Systems: Researchers completed key node analysis, started statistical process control (SPC) charting, carried out design-of-experiment (DoE) matrices on the cell line to optimize efficiencies, performed a capacity and bottleneck study, prepared a baseline chemical waste analysis report, and completed writing of more than 50% of documentation and statistical sections of ISO 9000 procedures. A highlight of this task is that cell efficiencies in manufacturing were increased by 0.4%--0.5% absolute, to an average in excess of 14.2%, with the help of DoE and SPC methods. Task 2--Low-Cost Processes: Researchers designed, constructed, and tested a 50-cm-diameter, edge-defined, film-fed growth (EFG) cylinder crystal growth system to successfully produce thin cylinders up to 1.2 meters in length; completed a model for heat transfer; successfully deployed new nozzle designs and used them with a laser wafer-cutting system with the potential to decrease cutting labor costs by 75% and capital costs by 2X; achieved laser-cutting speeds of up to 8X and evaluation of this system is proceeding in production; identified laser-cutting conditions that reduce damage for both Q-switched Nd:YAG and copper-vapor lasers with the help of a breakthrough in fundamental understanding of cutting with these short-pulse-length lasers; and found that bulk EFG material lifetimes are optimized when co-firing of silicon nitride and aluminum is carried out with rapid thermal processing (RTP). Task 3--Flexible Manufacturing: Researchers improved large-volume manufacturing of 10-cm {times} 15-cm EFG wafers by developing laser-cutting fixtures, adapting carriers and fabricating adjustable racks for etching and rinsing facilities, and installing a high-speed data collection net work; initiated fracture studies to develop methods to reduce wafer breakage; and started a module field studies program to collect data on field failures to help identify potential manufacturing problems. New encapsulants, which cure at room temperature, are being tested to improve flexibility and provide higher yields for thin wafers in lamination.

  20. Methodology Guidelines on Life Cycle Assessment of Photovoltaic Electricity

    E-Print Network [OSTI]

    1 Methodology Guidelines on Life Cycle Assessment of Photovoltaic Electricity of Photovoltaic Electricity #12;IEA-PVPS-TASK 12 Methodology Guidelines on Life Cycle Assessment of Photovoltaic Electricity INTERNATIONAL ENERGY AGENCY PHOTOVOLTAIC POWER SYSTEMS PROGRAMME Methodology

  1. Rooftop Photovoltaics Market Penetration Scenarios

    SciTech Connect (OSTI)

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

    2008-02-01T23:59:59.000Z

    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.

  2. OTEC- Residential Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Customers of Oregon Trail Electric Consumers Cooperative (OTEC) who install photovoltaic systems are eligible for a rebate of $500 for the first kilowatt (kW) of installed capacity per year. ...

  3. Reducing recombination in organic photovoltaics

    E-Print Network [OSTI]

    Sussman, Jason M. (Jason Michael)

    2011-01-01T23:59:59.000Z

    In this thesis, I consider two methods to improve organic photovoltaic efficiency: energy level cascades and promotion of triplet state excitons. The former relies on a thin layer of material placed between the active ...

  4. Salem Electric- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Salem Electric offers a rebate to residential customers who install solar photovoltaic (PV) systems. Customers have the option of receiving a rebate or a [http://dsireusa.org/incentives/incentive...

  5. Plug-and-Play Photovoltaics

    Broader source: 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...

  6. Mandatory Photovoltaic System Cost Estimate

    Broader source: Energy.gov [DOE]

    At the request of a customer or a potential customer, Colorado electric utilities are required to conduct a cost comparison of a photovoltaic (PV) system to any proposed distribution line extension...

  7. Ameren Missouri- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Ameren Missouri offers rebates to its customers for the installation of net metered photovoltaic (PV) systems on their properties. The rebate is set at $2.00 per DC watt with a maximum rebate of ...

  8. Mandatory Photovoltaic System Cost Analysis

    Broader source: Energy.gov [DOE]

    The Arizona Corporation Commission requires electric utilities to conduct a cost/benefit analysis to compare the cost of line extension with the cost of installing a stand-alone photovoltaic (PV)...

  9. Photovoltaic module mounting system

    DOE Patents [OSTI]

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

    2012-09-18T23:59:59.000Z

    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.

  10. Photovoltaic module mounting system

    DOE Patents [OSTI]

    Miros, Robert H. J. (Fairfax, CA); Mittan, Margaret Birmingham (Oakland, CA); Seery, Martin N. (San Rafael, CA); Holland, Rodney H. (Novato, CA)

    2012-04-17T23:59:59.000Z

    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.

  11. Photovoltaic solar concentrator

    DOE Patents [OSTI]

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

    2012-12-11T23:59:59.000Z

    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.

  12. Photovoltaic cell assembly

    DOE Patents [OSTI]

    Beavis, Leonard C. (Albuquerque, NM); Panitz, Janda K. G. (Edgewood, NM); Sharp, Donald J. (Albuquerque, NM)

    1990-01-01T23:59:59.000Z

    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.

  13. Photovoltaics for demand-side management utility markets: A utility/customer partnership approach

    SciTech Connect (OSTI)

    Byrne, J.; Letendre, S.; Govindarajalu, C.; Wang, Y.D. [Univ. of Delaware, Newark, DE (United States). Center for Energy and Environmental Policy; Nigro, R. [Delmarva Power and Light Co., Wilmington, DE (United States); Wallace, W. [National Renewable Energy Lab., Golden, CO (United States)

    1994-12-31T23:59:59.000Z

    Photovoltaic (PV) systems located at customer sites can be used to meet utility needs for demand-side management (DSM) applications. PV-DSM can also represent a high-value intermediate market for PV in the utility sector. Maximum value for PV in DSM applications can be achieved by incorporating a dispatching capability to PV systems (through the addition of storage). This enables utilities to evaluate PV systems as a peak-shaving technology. To date, peak-shaving has been the higher value DSM application for US utilities. This analysis of the value of dispatchable PV-DSM systems indicates that small-scale, customer-sited systems are approaching competitive cost levels in several regions of the US that have favorable load matching and peak demand pricing characteristics. This paper presents the results for PV-DSM systems located within the service territories of five case study utilities.

  14. Outdoor Performance of a Thin-Film Gallium-Arsenide Photovoltaic Module

    SciTech Connect (OSTI)

    Silverman, T. J.; Deceglie, M. G.; Marion, B.; Cowley, S.; Kayes, B.; Kurtz, S.

    2013-06-01T23:59:59.000Z

    We deployed a 855 cm2 thin-film, single-junction gallium arsenide (GaAs) photovoltaic (PV) module outdoors. Due to its fundamentally different cell technology compared to silicon (Si), the module responds differently to outdoor conditions. On average during the test, the GaAs module produced more power when its temperature was higher. We show that its maximum-power temperature coefficient, while actually negative, is several times smaller in magnitude than that of a Si module used for comparison. The positive correlation of power with temperature in GaAs is due to temperature-correlated changes in the incident spectrum. We show that a simple correction based on precipitable water vapor (PWV) brings the photocurrent temperature coefficient into agreement with that measured by other methods and predicted by theory. The low operating temperature and small temperature coefficient of GaAs give it an energy production advantage in warm weather.

  15. Status and Needs of Power Electronics for Photovoltaic Inverters

    SciTech Connect (OSTI)

    QIN, YU CHIN; MOHAN, NED; WEST, RICK; BONN, RUSSELL H.

    2002-06-01T23:59:59.000Z

    Photovoltaics is the utility connected distributed energy resource (DER) that is in widespread use today. It has one element, the inverter, which is common with all DER sources except rotating generators. The inverter is required to transfer dc energy to ac energy. With all the DER technologies, (solar, wind, fuel cells, and microturbines) the inverter is still an immature product that will result in reliability problems in fielded systems. Today, the PV inverter is a costly and complex component of PV systems that produce ac power. Inverter MTFF (mean time to first failure) is currently unacceptable. Low inverter reliability contributes to unreliable fielded systems and a loss of confidence in renewable technology. The low volume of PV inverters produced restricts the manufacturing to small suppliers without sophisticated research and reliability programs or manufacturing methods. Thus, the present approach to PV inverter supply has low probability of meeting DOE reliability goals. DOE investments in power electronics are intended to address the reliability and cost of power electronics. This report details the progress of power electronics, identifies technologies that are in current use, and explores new approaches that can provide significant improvements in inverter reliability while leading to lower cost. A key element to improved inverter design is the systems approach to design. This approach includes a list of requirements for the product being designed and a preliminary requirements document is a part of this report. Finally, the design will be for a universal inverter that can be applied to several technologies. The objective of a universal inverter is to increase the quantity being manufactured so that mass-manufacturing techniques can be applied. The report includes the requirements and recommended design approaches for a new inverter with a ten-year mean time to first failure (MTFF) and with lower cost. This development will constitute a ''leap forward'' in capability that leverages emerging technologies and best manufacturing processes to produce a new, high reliability, inverter. The targeted inverter size is from two to ten kilowatts. The report is organized into four sections. A brief introduction by Sandia is followed by Section Two from Millennium Technologies (a company with UPS experience). Section Three is provided by Xantrex (a PV manufacturing company) and the University of Minnesota provided Section Four. This report is very detailed and provides inverter design information that is irrelevant to the layman. It is intended to be a comprehensive documentation of proven technology and the manufacturing skills required to produce a high reliability inverter. An accompanying report will provide a summary of the recommended approach for inverter development.

  16. Siting Solar Photovoltaics at Airports: Preprint

    SciTech Connect (OSTI)

    Kandt, A.; Romero, R.

    2014-06-01T23:59:59.000Z

    Airports present a significant opportunity for hosting solar technologies due to their open land; based on a 2010 Federal Aviation Administration study, the US Department of Agriculture, and the US Fish and Wildlife Service, there's potential for 116,704 MW of solar photovoltaics (PV) on idle lands at US airports. PV has a low profile and likely low to no impact on flight operations. This paper outlines guidance for implementing solar technologies at airports and airfields, focusing largely on the Federal Aviation Administration's policies. The paper also details best practices for siting solar at airports, provides information on the Solar Glare Hazard Analysis Tool, and highlights a case study example where solar has been installed at an airport.

  17. Sandia National Laboratories: Photovoltaic Technology and Tour...

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

    * Tour of PV Test Facility Comments are closed. Renewable Energy Wind Energy Wind Plant Optimization Test Site Operations & Maintenance Safety: Test Facilities Capital Equipment...

  18. Photovoltaic Energy Technology Module | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocusOskiPhilips Color Kinetics Jump to: navigation, search

  19. NREL: Learning - Solar Photovoltaic Technology Basics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy SponsorsEnergy

  20. NREL: Photovoltaics Research - Emerging Technologies Engineering Testing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearchReliabilityand Evaluation Emerging

  1. NREL: Photovoltaics Research - Science and Technology Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearchReliabilityand7 November 29,Science and

  2. Solar energy storage through the homogeneous electrocatalytic reduction of carbon dioxide : photoelectrochemical and photovoltaic approaches

    E-Print Network [OSTI]

    Sathrum, Aaron John

    2011-01-01T23:59:59.000Z

    Powered Hydrogen Generation using Photovoltaic-ElectrolysisPowered Hydrogen Generation Using Photovoltaic?ElectrolysisPowered Hydrogen Production Using Photovoltaic Electrolysis

  3. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01T23:59:59.000Z

    way to do better. A photovoltaic cell, or solar cell, is aFor this thesis, I made photovoltaic cells using a Schottkyphotovoltaic processes oc- cur in a Schottky barrier solar cell. . . . . . . . . . . . . . . . . .

  4. ULTRA BARRIER TOPSHEET (UBT) FOR FLEXIBLE PHOTOVOLTAICS

    SciTech Connect (OSTI)

    DeScioli, Derek

    2013-06-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    Not Available

    2011-06-01T23:59:59.000Z

    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.

  6. Mounting support for a photovoltaic module

    DOE Patents [OSTI]

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

    2013-03-26T23:59:59.000Z

    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.

  7. Thin film photovoltaic panel and method

    DOE Patents [OSTI]

    Ackerman, Bruce (El Paso, TX); Albright, Scot P. (El Paso, TX); Jordan, John F. (El Paso, TX)

    1991-06-11T23:59:59.000Z

    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.

  8. Sandia National Laboratories: Photovoltaic Systems Research ...

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

    845-9015 rdrobin@sandia.gov Publications available at: pvsac@sandia.gov Websites Photovoltaics energy.sandia.gov www.eere.energy.gov Tagged with: Energy * Photovoltaics * PV *...

  9. Photovoltaic cell efficiency at elevated temperatures

    E-Print Network [OSTI]

    Ray, Katherine Leung

    2010-01-01T23:59:59.000Z

    In order to determine what type of photovoltaic solar cell could best be used in a thermoelectric photovoltaic hybrid power generator, we tested the change in efficiency due to higher temperatures of three types of solar ...

  10. Army Awards 20 Additional Contracts for Renewable Energy Technologies...

    Energy Savers [EERE]

    Units at Eight Military Installations SunShot Home About Concentrating Solar Power Photovoltaics Systems Integration Soft Costs Technology to Market Success Stories Financial...

  11. 2014 SunShot Initiative Technology to Market Subprogram Overview...

    Energy Savers [EERE]

    Documents & Publications SunShot Initiative 2014 Portfolio Overview Revitalizing American Competitiveness in Solar Technologies 2014 SunShot Initiative Photovoltaics Subprogram...

  12. ELECTRICAL ENGINEERING TECHNOLOGY PROGRAM EET 105 ELECTRICAL SYSTEMS

    E-Print Network [OSTI]

    Lozano-Nieto, Albert

    ELECTRICAL ENGINEERING TECHNOLOGY PROGRAM EET 105 ­ ELECTRICAL SYSTEMS LABORATORY EXPERIENCES will become familiar with solar cells as photovoltaic energy converters. Secondly, students will practice

  13. alternative technology assessment: Topics by E-print Network

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

    rays is used. Photovoltaics currently relies on three technologies. Monocrystalline and polycrystalline cells are silicon-based. Thin-film cells use semi-conductor materials....

  14. Nanocrystal Photovoltaics: The Case of Cu2S-CdS

    E-Print Network [OSTI]

    Rivest, Jessica Louis Baker

    2011-01-01T23:59:59.000Z

    M. A. Third generation photovoltaics: Ultra-high conversionmodern photovoltaic age. … in photovoltaics: research andnanopillar-array photovoltaics on low-cost and flexible

  15. Photovoltaic Incentive Design Handbook

    SciTech Connect (OSTI)

    Hoff, T. E.

    2006-12-01T23:59:59.000Z

    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.

  16. Potential of Photovoltaics: Preprint

    SciTech Connect (OSTI)

    Nelson, B. P.

    2008-10-01T23:59:59.000Z

    This paper discusses PV in the world energy portfolio, PV basics, PV technologies, and vacuum web-coating applications in PV.

  17. International photovoltaic products and manufacturers directory, 1995

    SciTech Connect (OSTI)

    Shepperd, L.W. [ed.] [Florida Solar Energy Center, Cocoa, FL (United States)] [ed.; Florida Solar Energy Center, Cocoa, FL (United States)

    1995-11-01T23:59:59.000Z

    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. Photovoltaic retinal prosthesis with high pixel density

    E-Print Network [OSTI]

    Palanker, Daniel

    Photovoltaic retinal prosthesis with high pixel density Keith Mathieson1,4 , James Loudin1 to stimulating electrodes via intraocular cables. We present a photovoltaic subretinal prosthesis, in which pixel, demonstrating the possibility of a fully integrated photovoltaic retinal prosthesis with high

  19. Low band gap polymers Organic Photovoltaics

    E-Print Network [OSTI]

    Low band gap polymers for Organic Photovoltaics Eva Bundgaard Ph.D. Dissertation Risø National Bundgaard Title: Low band gap polymers for Organic photovoltaics Department: The polymer department Report the area of organic photovoltaics are focusing on low band gap polymers, a type of polymer which absorbs

  20. Photovoltaics for the Terawatt Christiana Honsberg

    E-Print Network [OSTI]

    Firestone, Jeremy

    1 Photovoltaics for the Terawatt Challenge Christiana Honsberg Department of Electrical Computer;Photovoltaic Milestones · Germany, Spain, Italy have yearly installed PV capacity > yearly increase Workshop 02/28/14 C. Honsberg 5 5 #12;Learning Curves for Photovoltaics UD Energy Institute Solar Workshop

  1. EELE408 Photovoltaics Lecture 01: Intro & Safety

    E-Print Network [OSTI]

    Kaiser, Todd J.

    1 EELE408 Photovoltaics Lecture 01: Intro & Safety Dr. Todd J. Kaiser tjkaiser@ece.montana.edu Department of Electrical and Computer Engineering Montana State University - Bozeman EELE408 Photovoltaics & Ventre: Photovoltaic Systems Engineering , 3E · Resources: ­ Green: Solar Cells: Operating Principles

  2. Photovoltaic olar nergy Development on Landfills

    E-Print Network [OSTI]

    Photovoltaic olar nergy Development on Landfills ENVIRONMENTAL AREA RESEARCH PIER Environmental of a selfballasting photovoltaic solar racking system will affect a closed landfills dirt cap. The effects experiment wherein single racks with photovoltaic modules will be placed on a landfill cap

  3. Rational Design of Zinc Phosphide Heterojunction Photovoltaics

    E-Print Network [OSTI]

    Winfree, Erik

    Rational Design of Zinc Phosphide Heterojunction Photovoltaics Thesis by Jeffrey Paul Bosco would meet me with the same energy and enthusiasm regarding the topic of zinc phosphide photovoltaics to the field of earth-abundant photovoltaics has been indispensable to my work. Greg also made a great mentor

  4. INTERNATIONAL ENERGY AGENCY PHOTOVOLTAIC POWER SYSTEMS PROGRAMME

    E-Print Network [OSTI]

    is to improve the operation and sizing, the electrical and economic output of photovoltaic power systems#12;INTERNATIONAL ENERGY AGENCY PHOTOVOLTAIC POWER SYSTEMS PROGRAMME TASK 2 ­ Performance, Reliability and Analysis of Photovoltaic Systems THE AVAILABILITY OF IRRADIATION DATA Report IEA-PVPS T2

  5. EELE408 Photovoltaics Lecture 23: Summary

    E-Print Network [OSTI]

    Kaiser, Todd J.

    Photovoltaic Myth #1 · Solar modules consume more energy for their production than they ever generate. ­ Most industry ­ Future recycling of modules will further reduce environmental impact 15 Photovoltaic Myth #81 EELE408 Photovoltaics Lecture 23: Summary Dr. Todd J. Kaiser tjkaiser@ece.montana.edu Department

  6. DOE Announces Small Business Awards at its Annual Small Business...

    Office of Environmental Management (EM)

    Technologies, Inc. President and CTO: Abe Lederman Santa Fe, New Mexico Small Technology Transfer Research-Small Business of the Year Recipient: SABIA, Inc. President: Clint...

  7. An analysis of markets for small-scale, advanced coal-combustion technology in Spain, Italy, and Turkey

    SciTech Connect (OSTI)

    Placet, M.; Gerry, P.A.; Kenski, D.M.; Kern, D.M.; Nehring, J.L.; Szpunar, C.B.

    1989-09-01T23:59:59.000Z

    This report discusses the examination of potential overseas markets for using small-scale, US-developed, advanced coal-combustion technologies (ACTs). In previous work, member countries of the Organization for Economic Cooperation and Development (OECD) were rated on their potential for using ACTs through a comprehensive screening methodology. The three most promising OECD markets were found to be Spain, Italy, and Turkey. This report provides in-depth analyses of these three selected countries. First, it addresses changes in the European Community with particular reference to the 1992 restructuring and its potential effect on the energy situation in Europe, specifically in the three subject countries. It presents individual country studies that examine demographics, economics, building infrastructures, and energy-related factors. Potential niches for ACTs are explored for each country through regional analyses. Marketing channels, strategies, and the trading environments in each country are also discussed. The information gathered indicates that Turkey is a most promising market, Spain is a fairly promising market, and Italy appears to be a somewhat limited market for US ACTs. 76 refs., 16 figs., 14 tabs.

  8. Alternative Energy Technologies Solar Power

    E-Print Network [OSTI]

    Scott, Christopher

    #12;Alternative Energy Technologies Solar Power Photovoltaics Concentrating Solar Power (CSP) Power;Concentrating Solar Power (CSP) Reflector material is Aluminum or Silver Tube material ..... Several possible ............... Mexico, Canada, Peru Alumina ............Guinea, Brazil, Australia, Jamaica Manganese ....... S. Africa

  9. Sandia photovoltaic systems definition and application experiment projects

    SciTech Connect (OSTI)

    Jones, G.

    1983-04-01T23:59:59.000Z

    A compilation is given of the abstracts and visual material used in presentation at the Fourth Photovoltaic Systems Definition and Applications Projects Integration Meeting held at the Marriott Hotel, April 12-14, 1983, in Albuquerque, New Mexico. The meeting provided a forum for detailed analyses on recently completed and current activities. These activities include systems research, balance-of-system technology development, residential experimentation, and evaluation of intermediate-sized applications.

  10. Photovoltaic subsystem optimization and design tradeoff study. Final report

    SciTech Connect (OSTI)

    Stolte, W.J.

    1982-03-01T23:59:59.000Z

    Tradeoffs and subsystem choices are examined in photovoltaic array subfield design, power-conditioning sizing and selection, roof- and ground-mounted structure installation, energy loss, operating voltage, power conditioning cost, and subfield size. Line- and self-commutated power conditioning options are analyzed to determine the most cost-effective technology in the megawatt power range. Methods for reducing field installation of flat panels and roof mounting of intermediate load centers are discussed, including the cost of retrofit installations.

  11. Recycling Of Cis Photovoltaic Waste

    DOE Patents [OSTI]

    Drinkard, Jr., William F. (Charlotte, NC); Long, Mark O. (Charlotte, NC); Goozner; Robert E. (Charlotte, NC)

    1998-07-14T23:59:59.000Z

    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.

  12. Aternating current photovoltaic building block

    DOE Patents [OSTI]

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

    2004-06-15T23:59:59.000Z

    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.

  13. New Mexico Small Business

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

    Small Business Assistance Program (NMSBA) helps small businesses in New Mexico access cutting-edge technologies, solve technical issues, and gain knowledge from technical experts...

  14. Rapid screening buffer layers in photovoltaics

    DOE Patents [OSTI]

    List, III, Frederick Alyious; Tuncer, Enis

    2014-09-09T23:59:59.000Z

    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.

  15. Recycling of cadmium and selenium from photovoltaic modules and manufacturing wastes

    SciTech Connect (OSTI)

    Moskowitz, P.D.; Zweibel, K. (eds.)

    1992-01-01T23:59:59.000Z

    Since the development of the first silicon based photovoltaic cell in the 1950's, large advances have been made in photovoltaic material and processing options. At present there is growing interest in the commercial potential of cadmium telluride (CdTe) and copper indium diselenide (CIS) photovoltaic modules. As the commercial potential of these technologies becomes more apparent, interest in the environmental, health and safety issues associated with their production, use and disposal has also increased because of the continuing regulatory focus on cadmium and selenium. In future, recycling of spent or broken CdTe and CIS modules and manufacturing wastes may be needed for environmental, economic or political reasons. To assist industry to identify recycling options early in the commercialization process, a Workshop was convened. At this Workshop, representatives from the photovoltaic, electric utility, and nonferrous metals industries met to explore technical and institutional options for the recycling of spent CdTe and CIS modules and manufacturing wastes. This report summarizes the results of the Workshop. This report includes: (1) A discussion of the Resource Conservation and Recovery Act regulations and their potential implications to the photovoltaic industry; (2) an assessment of the needs of the photovoltaic industry from the perspective of module manufacturers and consumers; (3) an overview of recycling technologies now employed by other industries for similar types of materials; and, (4) a list of recommendation.

  16. Metals Production Requirements for Rapid Photovoltaics Deployment

    E-Print Network [OSTI]

    Kavlak, Goksin; Jaffe, Robert L; Trancik, Jessika E

    2015-01-01T23:59:59.000Z

    If global photovoltaics (PV) deployment grows rapidly, the required input materials need to be supplied at an increasing rate. In this paper, we quantify the effect of PV deployment levels on the scale of metals production. For example, we find that if cadmium telluride {copper indium gallium diselenide} PV accounts for more than 3% {10%} of electricity generation by 2030, the required growth rates for the production of indium and tellurium would exceed historically-observed production growth rates for a large set of metals. In contrast, even if crystalline silicon PV supplies all electricity in 2030, the required silicon production growth rate would fall within the historical range. More generally, this paper highlights possible constraints to the rate of scaling up metals production for some PV technologies, and outlines an approach to assessing projected metals growth requirements against an ensemble of past growth rates from across the metals production sector. The framework developed in this paper may be...

  17. Photovoltaic Power Generation in the Stellar Environments

    E-Print Network [OSTI]

    T. E. Girish; S. Aranya

    2010-12-03T23:59:59.000Z

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

  18. Thin Film Photovoltaics Research

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) supports research and development of four thin-film technologies on the path to achieving cost-competitive solar energy, including:

  19. Photovoltaics Value Analysis

    SciTech Connect (OSTI)

    Contreras, J.L.; Frantzis, L.; Blazewicz, S.; Pinault, D.; Sawyer, H.

    2008-02-01T23:59:59.000Z

    The goals of this report are to identify best practices in methodologies for estimating the value of distributed PV technologies, identify gaps in existing knowledge, and outline R&D opportunities.

  20. Interconnection of on-site photovoltaic generation to the electric utility. [Conference paper

    SciTech Connect (OSTI)

    Eichler, C.H.; Kilar, L.A.; Stiller, P.H.

    1980-01-01T23:59:59.000Z

    Electrical interconnection with the local electric utility of small, privately owned, on-site photovoltaic generating systems will be necessary. Legal guidelines exist through PURPA, administered by FERC, to establish interconnection, but economic viability will be the deciding factor in constructing photovoltaic generating systems. Although nationally recognized technical standards do not yet exist for interconnecting photovoltaic generation with an electric utility, most utilities have considered the need for developing cogeneration standards, and a few have developed such standards independently. Additional costs incurred by utilities in providing service interconnections to customers with cogeneration will be passed along to those customers, either as a direct assessment or as part of the applicable rate schedule. An economic-analysis methodology has been developed to allow comparing various possible photovoltaic-generating-system configurations under different utility rate structures and varying economic climates on a consistent basis.

  1. Multiband semiconductor compositions for photovoltaic devices

    DOE Patents [OSTI]

    Walukiewicz, Wladyslaw; Yu, Kin Man; Wu, Junqiao

    2010-05-04T23:59:59.000Z

    The highly mismatched alloy Zn1-yMnyOxTe1-x, 0.ltoreq.y<1 and 0small quantities of isovalent oxygen leads to the formation of a narrow, oxygen-derived band of extended states located within the band gap of the Zn1-yMnyTe host. With multiple band gaps that fall within the solar energy spectrum, Zn1-yMnyOxTe1-x is a material perfectly satisfying the conditions for single-junction photovoltaics with the potential for power conversion efficiencies surpassing 50%.

  2. Multiband semiconductor compositions for photovoltaic devices

    DOE Patents [OSTI]

    Walukiewicz, Wladyslaw (Kensington, CA); Yu, Kin Man (Lafayette, CA); Wu, Junqiao (Belmont, MA)

    2012-03-06T23:59:59.000Z

    The highly mismatched alloy Zn.sub.1-yMn.sub.yO.sub.xTe.sub.1-x, 0.ltoreq.y<1 and 0small quantities of isovalent oxygen leads to the formation of a narrow, oxygen-derived band of extended states located within the band gap of the Zn.sub.1-yMn.sub.yTe host. With multiple band gaps that fall within the solar energy spectrum, Zn.sub.1-yMn.sub.yO.sub.xTe.sub.1-x is a material perfectly satisfying the conditions for single-junction photovoltaics with the potential for power conversion efficiencies surpassing 50%.

  3. DOE Announces Small Business Awards at its Annual Small Business...

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

    California Small Business Innovative Research-Small Business of the Year Recipient: Deep Web Technologies, Inc. President and CTO: Abe Lederman Santa Fe, New Mexico Small...

  4. Breakthrough: micro-electronic photovoltaics

    SciTech Connect (OSTI)

    Okandan, Murat; Gupta, Vipin

    2012-04-23T23:59:59.000Z

    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.

  5. Electrochemical photovoltaic cells and electrodes

    DOE Patents [OSTI]

    Skotheim, Terje A. (East Patchogue, NY)

    1984-01-01T23:59:59.000Z

    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.

  6. Photovoltaic cells employing zinc phosphide

    DOE Patents [OSTI]

    Barnett, Allen M. (Newark, DE); Catalano, Anthony W. (Wilmington, DE); Dalal, Vikram L. (Newark, DE); Masi, James V. (Wilbraham, MA); Meakin, John D. (Newark, DE); Hall, Robert B. (Newark, DE)

    1984-01-01T23:59:59.000Z

    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.

  7. NREL Photovoltaic Program FY 1993

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    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.

  8. Breakthrough: micro-electronic photovoltaics

    ScienceCinema (OSTI)

    Okandan, Murat; Gupta, Vipin

    2014-06-23T23:59:59.000Z

    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.

  9. Improved photovoltaic cells and electrodes

    DOE Patents [OSTI]

    Skotheim, T.A.

    1983-06-29T23:59:59.000Z

    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.

  10. Understanding Variability and Uncertainty of Photovoltaics for Integration with the Electric Power System

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01T23:59:59.000Z

    and Uncertainty of Photovoltaics for Integration with themodels and datasets. Photovoltaics fall under the broader

  11. Potential of Photovoltaics

    SciTech Connect (OSTI)

    Nelson, B. P.

    2008-10-22T23:59:59.000Z

    Presented at the Association of Industrial Metallizers, Coaters and Laminators (AIMCAL) Fall Technical Conference 2008 and 22nd International Vacuum Web Coating Conference held October 19-22, 2008 in Myrtle Beach, South Carolina. This presentation discusses PV in the world energy portfolio, PV basics, PV technologies, and vacuum web-coating applications in PV.

  12. Model institutional infrastructures for recycling of photovoltaic modules

    SciTech Connect (OSTI)

    Reaven, S.J.; Moskowitz, P.D.; Fthenakis, V.

    1996-01-01T23:59:59.000Z

    How will photovoltaic modules (PVMS) be recycled at the end of their service lives? This question has technological and institutional components (Reaven, 1994a). The technological aspect concerns the physical means of recycling: what advantages and disadvantages of the several existing and emerging mechanical, thermal, and chemical recycling processes and facilities merit consideration? The institutional dimension refers to the arrangements for recycling: what are the operational and financial roles of the parties with an interest in PVM recycling? These parties include PVM manufacturers, trade organizations; distributors, and retailers; residential, commercial, and utility PVM users; waste collectors, transporters, reclaimers, and reclaimers; and governments.

  13. 25 Year Lifetime for Flexible Buildings Integrated Photovoltaics

    SciTech Connect (OSTI)

    Gross, Mark E.

    2010-07-10T23:59:59.000Z

    Although preliminary proof-of-principle of the efficacy of barrier materials and processes, first developed by Battelle at PNNL and commercialized by Vitex, has been demonstrated at the laboratory scale, there are several challenges to the practical commercial implementation of these developments in the Buildings Integrated Photovoltaics (BIPV) market. Two important issues that are addressed in this project are identifying a low cost substrate material that can survive in the outside environment (rain, heat, dust, hail, etc.) for 25 years and developing an encapsulation method for the photovoltaic (PV) cells that can meet the required barrier performance without driving the cost of the total barrier package out of range (remaining below $3.00/Wp). Without these solutions, current encapsulation technologies will limit the use of PV for BIPV applications. Flexible, light-weight packaging that can withstand 25 years in the field is required for a totally flexible integrated PV package. The benefit of this research is to make substantial progress in the development of a cost-effective, viable thin film barrier package which will be a critical enabling technology to meet the Solar America Initiative cost and device reliability goals, and to make photovoltaics (PV) more cost-competitive with electricity generated using fossil fuels. Increased PV installations will enable increased US electrical capacity and reduce dependence on imported oil through increased utilization of a widely abundant source of renewable energy (sunlight).

  14. Developing and marketing a photovoltaics product

    SciTech Connect (OSTI)

    Freeman, L.M.

    1995-12-31T23:59:59.000Z

    This paper presents findings from a market assessment performed by Applied Energy Group, Inc. concerning a Photovoltaic (PV) product developed by Delmarva Power in conjunction with AC Battery and Ascension Technology and the University of Delaware, with sponsorship from the U.S. Department of Energy, This research was performed as part of Phase I of Delmarva`s PV:BONUS research project which has as its aim the development and eventual commercialization of a solar peak shaving device for commercial buildings. A second stage of market research will be pursued under Phase II of the PV:BONUS project to further target appropriate markets, identify and secure several demonstration installations, and develop a marketing campaign. This project provides an example of how a utility can leverage outside funding sources, such as the Department of Energy, to help further the dual goals of identifying new market areas as well as meeting a national policy objective -- the development and commercialization of renewable resource technologies. Technology development is, in fact, a major area of focus for the current administration and is seen as an imperative for the U.S.`s ability to compete in the global marketplace. U.S. electric utilities are in an excellent position to pursue this important niche of energy services as they begin to position themselves for an increasingly competitive environment both here and abroad.

  15. Summary of Inverter Technologies Prepared for the

    E-Print Network [OSTI]

    Delivery and Energy Reliability Under Cooperative Agreement No. DE-EE0003507 Hawai`i Energy Sustainability Program Subtask 3.1 Photovoltaic Systems: Report 2 Summary of Inverter Technologies Submitted by Hawai [1]. Gridconnected photovoltaic (PV) installations, one of the most common types of DER, typically

  16. Business developments of nonthermal solar technologies

    SciTech Connect (OSTI)

    Smith, S.A.; Watts, R.L.; Williams, T.A.

    1985-10-01T23:59:59.000Z

    Information on the developments of nonthermal solar technologies is presented. The focus is on the success of wind energy conversion systems (WECS) and photovoltaics. Detailed information on the installed generating capacity, market sectors, financing sources, systems costs and warranties of WECS and photovoltaic systems is summarized. (BCS)

  17. EVALUATION OF FLAT-PLATE PHOTOVOLTAIC THERMAL HYBRID SYSTEMS FOR SOLAR ENERGY UTILIZATION.

    SciTech Connect (OSTI)

    ANDREWS,J.W.

    1981-06-01T23:59:59.000Z

    The technical and economic attractiveness of combined photovoltaic/thermal (PV/T) solar energy collectors was evaluated. The study was limited to flat-plate collectors since concentrating photovoltaic collectors require active cooling and thus are inherently PV/T collectors, the only decision being whether to use the thermal energy or to dump it. it was also specified at the outset that reduction in required roof area was not to be used as an argument for combining the collection of thermal and electrical energy into one module. Three tests of economic viability were identified, all of which PV/T must pass if it is to be considered a promising alternative: PV/T must prove to be competitive with photovoltaic-only, thermal-only, and side-by-side photovoltaic-plus-thermal collectors and systems. These three tests were applied to systems using low-temperature (unglazed) collectors and to systems using medium-temperature (glazed) collectors in Los Angeles, New York, and Tampa. For photovoltaics, the 1986 DOE cost goals were assumed to have been realized, and for thermal energy collection two technologies were considered: a current technology based on metal and glass, and a future technology based on thin-film plastics. The study showed that for medium-temperature applications PV/T is not an attractive option in any of the locations studied. For low-temperature applications, PV/T appears to be marginally attractive.

  18. The basics of the technology of creating a small interelectrode spacing in thermionic energy converters with the use of two-phase systems

    SciTech Connect (OSTI)

    Kalandarishvili, A.G. [Russian Research Center, Moscow (Russian Federation). Kurchatov Inst.

    1997-12-31T23:59:59.000Z

    The paper presents peculiarities of the technology for creating a small interelectrode spacing in thermionic converters (TIC) using two-phase graphite-cesium and graphite-cesium-barium systems. Optimum conditions are discussed for cesium and barium intercalation into oriented graphite (load-bearing member) placed inside the converter interelectrode gap to obtain a stable ultra-small spacing. Principle design diagrams of a close-spaced TIC are presented, and their basic technical characteristics are assessed. The analytical relationship between the members of the load-bearing unit based on the graphite-cesium system and the TIC interelectrode spacing being formed is established from calculations and experiments.

  19. AN ANALYSIS OF THE ENERGY IMPACTS OF THE DOE APPROPRIATE ENERGY TECHNOLOGY SMALL GRANTS PROGRAM: METHODS AND RESULTS

    E-Print Network [OSTI]

    Lucarelli, Bart

    2013-01-01T23:59:59.000Z

    annual wind regime. The wind generator was small (1.5kw),first cost of the wind generator and tower. Zoning

  20. Uncertainty and sensitivity analysis for photovoltaic system modeling.

    SciTech Connect (OSTI)

    Hansen, Clifford W.; Pohl, Andrew Phillip; Jordan, Dirk [National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO] [National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO

    2013-12-01T23:59:59.000Z

    We report an uncertainty and sensitivity analysis for modeling DC energy from photovoltaic systems. We consider two systems, each comprised of a single module using either crystalline silicon or CdTe cells, and located either at Albuquerque, NM, or Golden, CO. Output from a PV system is predicted by a sequence of models. Uncertainty in the output of each model is quantified by empirical distributions of each model's residuals. We sample these distributions to propagate uncertainty through the sequence of models to obtain an empirical distribution for each PV system's output. We considered models that: (1) translate measured global horizontal, direct and global diffuse irradiance to plane-of-array irradiance; (2) estimate effective irradiance from plane-of-array irradiance; (3) predict cell temperature; and (4) estimate DC voltage, current and power. We found that the uncertainty in PV system output to be relatively small, on the order of 1% for daily energy. Four alternative models were considered for the POA irradiance modeling step; we did not find the choice of one of these models to be of great significance. However, we observed that the POA irradiance model introduced a bias of upwards of 5% of daily energy which translates directly to a systematic difference in predicted energy. Sensitivity analyses relate uncertainty in the PV system output to uncertainty arising from each model. We found that the residuals arising from the POA irradiance and the effective irradiance models to be the dominant contributors to residuals for daily energy, for either technology or location considered. This analysis indicates that efforts to reduce the uncertainty in PV system output should focus on improvements to the POA and effective irradiance models.

  1. Synthesis and photovoltaic application of coper (I) sulfide nanocrystals

    E-Print Network [OSTI]

    Wu, Yue

    2008-01-01T23:59:59.000Z

    polymer hybrid photovoltaic cells. Appl. Phys. Lett. 88,S-CdS heterojunction photovoltaic cells. J. Appl. Phys. 45,photovoltaic devices, such as dye-sensitized solar cells 1-

  2. Synthesis and photovoltaic application of coper (I) sulfide nanocrystals

    E-Print Network [OSTI]

    Wu, Yue

    2008-01-01T23:59:59.000Z

    CdSe quantum dots for photovoltaic devices. Nano Lett. 7,nanocrystal-polymer hybrid photovoltaic cells. Appl. Phys.Gill, W. D. , Bube, R. H. Photovoltaic Properties of Cu 2 S-

  3. EXPERIMENTS with PHOTOVOLTAIC CELLS for high school science students

    E-Print Network [OSTI]

    Oregon, University of

    EXPERIMENTS with PHOTOVOLTAIC CELLS for high school science students By Dick Erickson ­ Pleasant Activity ­ Testing Photovoltaic Cells ..........................5 Expected Observations: ........................................................................................................8 II. LAB ACTIVITY - TESTING PHOTOVOLTAIC CELLS ..................................9 BEFORE YOU START

  4. Femtosecond laser processing of photovoltaic and transparent materials

    E-Print Network [OSTI]

    Ahn, Sanghoon

    2013-01-01T23:59:59.000Z

    20%  efficiency.  Progress  in  Photovoltaics.  2004;12:efficiency   tables  (version  39).  Progress  in  Photovoltaics.  efficiency   for   Cu(In,Ga)Se-­?2   thin-­?film   solar   cells   beyond   20%.   Progress   in   Photovoltaics.  

  5. Sustainability of Large Deployment of Photovoltaics: Environmental & Grid Integration Research

    E-Print Network [OSTI]

    Ohta, Shigemi

    1 Sustainability of Large Deployment of Photovoltaics: Environmental & Grid Integration Research Sustainability of Large Deployment of Photovoltaics: Environmental & Grid Integration Research www Photovoltaics Environmental Research Center Brookhaven National Laboratory #12;2 Source: PV Market Outlook

  6. Solution-processed photovoltaics with advanced characterization and analysis

    E-Print Network [OSTI]

    Duan, Hsin-Sheng

    2014-01-01T23:59:59.000Z

    at the 37th IEEE Photovoltaics Specialists Conference (D. B. Mitzi, Prog. Photovoltaics 2011, 20, 6. [23] S. Bag,R. Noufi, IEEE J. Photovoltaics 2012, T. Todorov, J. Tang,

  7. Photovoltaic Lifetime & Degradation Science Statistical Pathway Development: Acrylic Degradation

    E-Print Network [OSTI]

    Rollins, Andrew M.

    Photovoltaic Lifetime & Degradation Science Statistical Pathway Development: Acrylic Degradation, USA ABSTRACT In order to optimize and extend the life of photovoltaics (PV) modules, scientific photovoltaics. The statisti- cally significant relationships were investigated using lifetime and degradation

  8. Photovoltaic nanocrystal scintillators hybridized on Si solar cells

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    Photovoltaic nanocrystal scintillators hybridized on Si solar cells for enhanced conversion@bilkent.edu.tr Abstract: We propose and demonstrate semiconductor nanocrystal based photovoltaic scintillators integrated on solar cells to enhance photovoltaic device parameters including spectral responsivity, open circuit

  9. Degradation Pathway Models for Photovoltaics Module Lifetime Performance

    E-Print Network [OSTI]

    Rollins, Andrew M.

    Degradation Pathway Models for Photovoltaics Module Lifetime Performance Nicholas R. Wheeler, Laura data from Underwriter Labs, featuring measurements taken on 18 identical photovoltaic (PV) modules in modules and their effects on module performance over lifetime. Index Terms--photovoltaics, statistical

  10. DOE project review Massachusetts Photovoltaic Program. Annual report, June 1989--July 1990

    SciTech Connect (OSTI)

    NONE

    1996-06-01T23:59:59.000Z

    This is the third year of operations for work under the Cooperative Agreement between the Commonwealth of Massachusetts Photovoltaic Center and the U.S. Department of Energy. As a collaborative effort with shared resources, the activity at the Photovoltaic Center and the University of Lowell Photovoltaic Program has continued to advance the utilization and implementation of photovoltaic-powered systems into society. The programs and activities developed over the past three years have supported strategies that cover both international utilization as well as domestic application. Three major areas of activities have centered around the following themes: (1) The identification of market opportunities to enlarge sales potential for the photovoltaic industry. (2) The development of a knowledgeable infrastructure to support PV diffusion in Massachusetts, in the United States, and around the world. (3) The analysis of the physical, economic, and regulatory environment in which PV must compete with mature energy technologies. This past year has been an experience of contrasts for the Photovoltaic Center. Projects and activities have resulted in the successful completion of programs goals.

  11. Development of a commercial photovoltaic concentrator module

    SciTech Connect (OSTI)

    Saifee, S.T.; Hutchison, G. [Solar Kinetics, Inc., Dallas, TX (United States)

    1992-09-01T23:59:59.000Z

    The ojective of this work was to develop the design and prototype of a commercial high-concentration photovoltaic (PV) module. The design is for a 282-sun point-focus concentrating module. Most of the components, subassemblies, and design features incorporate simplifications and ease of manufacturing. The Solar Kinetics, Inc. (SKI) module is designed to incorporate high-efficiency, single-crystal silicon PV cells. The housing is made with aluminum laminated for voltage stand-off and simultaneously providing high thermal conductivity. The Fresnel lens injection molded by American Optical (AO) as singles. The cell assembly consists of a copper heat spreader, a photovoltaic cell soldered, a top and bottom contact, and a reflective secondary optical element (SOE). The cell assemblies passed all of the initial electrical characterization and high-potential tests. Under environmental cycling, the only bond that failed was the PV cell-to-heat spreader interface. The other components (top contact, bottom contact, SOE) passed all the environmental cycling tests. The cell assemblies were designed to be mounted onto the receiver section with a thermally conductive RTV. This geometry was subjected to environmental testing. There was no delamination of this bond nor was there electrical breakdown when the assemblies were subjected to the hi-pot test. A mock module was fabricated for environmental evaluation. This module was subjected to the humidity/freeze cycling to assess the performance of the lens mounting design. This module was also subjected to the rain test after the humidity/freeze cycling and checked for water leaks. The lens showed small displacement from its original position after the environmental cycling. One tablespoon of water did collect inside the module.

  12. Chapter 9: Photovoltaic DevicesChapter 9: Photovoltaic Devices Solar energy spectrumSolar energy spectrum

    E-Print Network [OSTI]

    Wang, Jianfang

    Chapter 9: Photovoltaic DevicesChapter 9: Photovoltaic Devices Solar energy spectrumSolar energy Solar Energy? · Clean · Nearly unlimited PHYS5320 Chapter Nine 3 #12;S l ll l t PHYS5320 Chapter Nine 4 Solar cell plant #12;Cars powered by photovoltaic devices PHYS5320 Chapter Nine 5 #12;Solar Energy

  13. Energizing the Next Generation with Photovoltaics Following the lead of Russian colleagues, photovoltaic (PV)

    E-Print Network [OSTI]

    Oregon, University of

    Energizing the Next Generation with Photovoltaics ABSTRACT Following the lead of Russian colleagues, photovoltaic (PV) lab kits are being built and experiments and curricula are being developed for use of these kits. This Photovoltaic Sci- ence Experiments and Curriculum (PSEC) is being tested in local high

  14. Photovoltaic performance and reliability workshop

    SciTech Connect (OSTI)

    Mrig, L. [ed.

    1993-12-01T23:59:59.000Z

    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.

  15. High voltage photovoltaic power converter

    DOE Patents [OSTI]

    Haigh, Ronald E. (Arvada, CO); Wojtczuk, Steve (Cambridge, MA); Jacobson, Gerard F. (Livermore, CA); Hagans, Karla G. (Livermore, CA)

    2001-01-01T23:59:59.000Z

    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.

  16. Scattering Properties of nanostructures : applications to photovoltaics

    E-Print Network [OSTI]

    Derkacs, Daniel

    2009-01-01T23:59:59.000Z

    hydrogen during deposition, dangling bonds are compensated and hydrogenated amorphous silicon (a-Si:H) can be made into a promising photovoltaic

  17. Photovoltaic Process Development and innovative Techniques.

    E-Print Network [OSTI]

    Ismail, Furrukh

    2011-01-01T23:59:59.000Z

    ?? Photovoltaic processing is one of the processes that have significance in semiconductor process line. It is complicated due to the no. of elements involved… (more)

  18. Photovoltaic cell with thin CS layer

    DOE Patents [OSTI]

    Jordan, John F. (El Paso, TX); Albright, Scot P. (El Paso, TX)

    1994-01-18T23:59:59.000Z

    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.

  19. Photovoltaic converter having apertured reflective enclosure

    SciTech Connect (OSTI)

    Sinton, R.A.; Swanson, R.M.

    1990-10-02T23:59:59.000Z

    This patent describes a photovoltaic converter. It comprises: a photovoltaic cell having an incident face upon which light is directed to cause photogeneration; an enclosure over the incident face, the wall of the enclosure having a reflective inner surface spaced apart from the incident face to permit light reflected from the incident face to be re-reflected by the inner surface and back to the photovoltaic cell; and an aperture through the wall of the enclosure to permit light to fall directly upon the voltaic cell. The ratio of the area of the aperture to the are of the incident face of the photovoltaic cell is less than about 0.2.

  20. NREL Photovoltaic Program FY 1994 bibliography

    SciTech Connect (OSTI)

    none,

    1994-12-01T23:59:59.000Z

    This report lists all published documents of the Photovoltaic Program for FY 1994. Documents include conference papers, journal articles, book chapters, patents, etc.

  1. Nellis AFB 'Sun Park' Photovoltaic Power Project

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

    Briefing is: UNCLASSIFIED Headquarters Air Combat Command Nellis AFB 'Sun Park' Photovoltaic Power Project *Capt Frank Hollifield *AFLOAJACLULT Overview *Objective * Provide...

  2. NREL Photovoltaic Program FY 1993 bibliography

    SciTech Connect (OSTI)

    Pohle, L. [ed.

    1994-01-01T23:59:59.000Z

    This report lists all published documents of the Photovoltaic Program for FY 1993. Documents include conference papers, journal articles, book chapters, etc.

  3. Flat-Plate Photovoltaic Module Basics

    Broader source: Energy.gov [DOE]

    Flat-plate photovoltaic (PV) modules are made of several components, including the front surface materials, encapsulant, rear surface, and frame.

  4. Economic and Environmental Analysis of Photovoltaic Energy ...

    E-Print Network [OSTI]

    Shimpei Okido

    2012-03-22T23:59:59.000Z

    Mar 22, 2012 ... Economic and Environmental Analysis of Photovoltaic Energy Systems via Robust Optimization. Shimpei Okido(oks1024 ***at*** hotmail.com)

  5. Sandia National Laboratories: Photovoltaic Systems Evaluation...

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

    can consistently perform over time, the DOE -in ... Second Annual Electric Power Research InstituteSandia Photovoltaic Systems Symposium On April 15, 2014, in...

  6. Molecular Designs Toward Improving Organic Photovoltaics.

    E-Print Network [OSTI]

    Nantalaksakul, Arpornrat

    2009-01-01T23:59:59.000Z

    ??Organic photovoltaics (OPVs) that have been studied to date have poor power conversion efficiencies. This dissertation focuses on various molecular designs that could lead to… (more)

  7. Photovoltaics performance and reliability workshop

    SciTech Connect (OSTI)

    Mrig, L. [ed.] [ed.

    1992-11-01T23:59:59.000Z

    This document consists of papers and viewgraphs compiled from the proceedings of a workshop held in September 1992. This workshop was the fifth in a series sponsored by NREL/DOE under the general subject areas of photovoltaic module testing and reliability. PV manufacturers, DOE laboratories, electric utilities and others exchanged technical knowledge and field experience. The topics of cell and module characterization, module and system performance, materials and module durability/reliability research, solar radiation, and applications are discussed.

  8. Photovoltaics performance and reliability workshop

    SciTech Connect (OSTI)

    Mrig, L. (ed.) [ed.

    1992-01-01T23:59:59.000Z

    This document consists of papers and viewgraphs compiled from the proceedings of a workshop held in September 1992. This workshop was the fifth in a series sponsored by NREL/DOE under the general subject areas of photovoltaic module testing and reliability. PV manufacturers, DOE laboratories, electric utilities and others exchanged technical knowledge and field experience. The topics of cell and module characterization, module and system performance, materials and module durability/reliability research, solar radiation, and applications are discussed.

  9. Photovoltaic Subcontract Program, FY 1991. Annual report, [October 1, 1990--September 30, 1991

    SciTech Connect (OSTI)

    Not Available

    1992-03-01T23:59:59.000Z

    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.

  10. The interaction between photovoltaic materials and building forms.

    E-Print Network [OSTI]

    Qiu, Liming

    2009-01-01T23:59:59.000Z

    ??There is an intrinsic relationship between photovoltaic materials and building forms; although there are numerous imaginations and concepts about buildings integrated photovoltaic materials. The relationship… (more)

  11. A Photovoltaic Test Platform Realized with Multiple Independent Outputs.

    E-Print Network [OSTI]

    Crawford, Kevin P.

    2011-01-01T23:59:59.000Z

    ??In this thesis, a project to design and build a photovoltaic test platform is discussed. Essentially, it is a photovoltaic simulator designed to have multiple… (more)

  12. Solar Photovoltaic Financing: Deployment on Public Property by...

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

    Solar Photovoltaic Financing: Deployment on Public Property by State and Local Governments Solar Photovoltaic Financing: Deployment on Public Property by State and Local...

  13. Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps...

    Office of Environmental Management (EM)

    Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's Solar Leadership Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's...

  14. Effect of Solar Panel Cooling on Photovoltaic Performance.

    E-Print Network [OSTI]

    Ali, Rehan

    2014-01-01T23:59:59.000Z

    ?? One of the main problems in using the photovoltaic system is the low energy conversion efficiency of photovoltaic cells and, furthermore, during the long… (more)

  15. Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics

    E-Print Network [OSTI]

    Padilla, Derek

    2013-01-01T23:59:59.000Z

    cell efficiency milestones. Quantum dot photovoltaics is inphotovoltaics provide the potential to create high-efficiencycell efficiency milestones. Quantum dot photovoltaics is in

  16. Clallam County PUD- Residential and Small Business Solar Loan Program

    Broader source: Energy.gov [DOE]

    In conjunction with First Federal Savings and Loan, Clallam County PUD offers residential and small commercial customers a low-interest loan program for the purchase of solar photovoltaic systems....

  17. JMP Applications in Photovoltaic Reliability (Presentation)

    SciTech Connect (OSTI)

    Jordan, D.; Gotwalt, C.

    2011-09-01T23:59:59.000Z

    The ability to accurately predict power delivery over the course of time is of vital importance to the growth of the photovoltaic (PV) industry. Two key cost drivers are the efficiency with which sunlight is converted into power and secondly how this relationship develops over time. The accurate knowledge of power decline over time, also known as degradation rates, is essential and important to all stakeholders?utility companies, integrators, investors, and scientist alike. Outdoor testing plays a vital part in quantifying degradation rates of different technologies in various climates. Due to seasonal changes, however, several complete cycles (typically 3-5 years) need to be completed traditionally to obtain reasonably accurate degradation rates. In a rapidly evolving industry such a time span is often unacceptable and the need exists to determine degradation rates more accurately in a shorter period of time. Advanced time series modeling such as ARIMA (Autoregressive Integrated Moving Average) modeling can be utilized to decrease the required time span and is compared with some non-linear modeling. In addition, it will be demonstrated how the JMP 9 map feature was used to reveal important technological trends by climate.

  18. Impacts of Market and Technical Characteristics for Developments of Photovoltaic Industry- A Study of Japanese Photovoltaic Industry.

    E-Print Network [OSTI]

    Hu, Jung-Yu

    2012-01-01T23:59:59.000Z

    ??The thesis discusses the restrictions of photovoltaic industrial market and technical characteristics, and the reactions of Japanese government and photovoltaic industry. Furthermore, this thesis studies… (more)

  19. alternative central-station technologies: Topics by E-print Network

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

    rays is used. Photovoltaics currently relies on three technologies. Monocrystalline and polycrystalline cells are silicon-based. Thin-film cells use semi-conductor materials....

  20. Data base on batteries, power-conditioning equipment, and photovoltaic arrays. Final report

    SciTech Connect (OSTI)

    Podder, A; Kapner, M; Morse, T

    1981-02-01T23:59:59.000Z

    The objective of this study was to compile an up-to-date comprehensive data base for research, design, and development of photovoltaic systems, primarily in the areas of applications and battery technology, and secondarily in the area of power conditioning and photovoltaic array technology. This volume contains the data base used to develop the end-use scenarios and identify the R and D needed for batteries to be used in photovoltaic power systems. In addition to its specific application to the present study, this data base is intended to provide state-of-the-art information to manufacturers of the various components of photovoltaic power systems, system designers, and researchers in this field. An extensive literature search was conducted to obtain technical data on batteries, power conditioners, and photovoltaic arrays. The data obtained from published technical literature and direct communication with manufacturers and developers are compiled. Principles of operation, types of systems, performance characteristics, test data, and cost data are included for each of the components. (WHK)

  1. Swiss Federal Laboratories for Materials Science and Technology Advances in Thin Film PV: CIGS & CdTe

    E-Print Network [OSTI]

    Canet, Léonie

    and Photovoltaics Thin film solar cells based on compound semiconductor absorbers: CIGS and CdTe High efficiency and Photovoltaics Swiss Federal Laboratories for Material Science and Technology Key issues in high efficiency CIGSTe Laboratory for Thin Films and Photovoltaics Empa- Swiss Federal Laboratories for Material Science

  2. Preliminary photovoltaic arc-fault prognostic tests using sacrificial fiber optic cabling.

    SciTech Connect (OSTI)

    Johnson, Jay; Blemel, Kenneth D. [Sentient Business Systems, Inc., Albuquerque, NM; Peter, Francis [Sentient Business Systems, Inc., Albuquerque, NM

    2013-02-01T23:59:59.000Z

    Through the New Mexico Small Business Assistance Program, Sandia National Laboratories worked with Sentient Business Systems, Inc. to develop and test a novel photovoltaic (PV) arc-fault detection system. The system operates by pairing translucent polymeric fiber optic sensors with electrical circuitry so that any external abrasion to the system or internal heating causes the fiber optic connection to fail or detectably degrade. A periodic pulse of light is sent through the optical path using a transmitter-receiver pair. If the receiver does not detect the pulse, an alarm is sounded and the PV system can be de-energized. This technology has the unique ability to prognostically determine impending failures to the electrical system in two ways: (a) the optical connection is severed prior to physical abrasion or cutting of PV DC electrical conductors, and (b) the polymeric fiber optic cable melts via Joule heating before an arc-fault is established through corrosion. Three arc-faults were created in different configurations found in PV systems with the integrated fiber optic system to determine the feasibility of the technology. In each case, the fiber optic cable was broken and the system annunciated the fault.

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

    SciTech Connect (OSTI)

    Wills, R.H. [Solar Design Associates, Harvard, MA (United States)

    1994-06-01T23:59:59.000Z

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

  4. Commercialization of High Efficiency Low Cost CIGS Technology Based on Electroplating: Final Technical Progress Report, 28 September 2007 - 30 June 2009

    SciTech Connect (OSTI)

    Basol, B.

    2010-08-01T23:59:59.000Z

    This report describes SoloPower's work as a Photovoltaic Technology Incubator awardee within the U.S. Department of Energy's Solar Energy Technologies Program. The term of this subcontract with the National Renewable Energy Laboratory was two years. The project focused on SoloPower's electrodeposition-based copper indium gallium (di)selenide (CIGS) technology. Under this subcontract, SoloPower improved the quality of its flexible metal substrates, increased the size of its solar cells from 0.5 cm2 to 120 cm2, increased the small-area cell efficiencies from near 11% to near 14%, demonstrated large-area cells, and developed a module manufacturing process.

  5. NREL: Photovoltaics Research - Photovoltaic Manufacturing R&D Project

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz, Ph.D. PrincipalPhotovoltaic Manufacturing

  6. Solar Photovoltaics development -Status and perspectives

    E-Print Network [OSTI]

    Solar Photovoltaics development - Status and perspectives Jørgen Fenhann Risø National Laboratory for the development of solar photovoltaics, contributing to the Macro Task E1 on production cost for fusion.S. with 53 MWp followed by Japan and EU. Until now off-grid installation have dominated the solar PV market

  7. Sustainability of Large Photovoltaic Deployment: Environmental Research

    E-Print Network [OSTI]

    Homes, Christopher C.

    Sustainability of Large Photovoltaic Deployment: Environmental Research Sustainability of Large Photovoltaic Deployment: Environmental ResearchEnvironmental ResearchEnvironmental Research Vasilis Fthenakis, Cu, Fe) CdSO4 Cd Metal Tellurium Clean Glass Cd Electrowinning Cell Cu Recovery Te Separation from Cd

  8. Photovoltaic Installations at Williams College Ruth Aronoff

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    generation using solar power. Photovoltaic (PV) panel installations are a simple way for the College facilities, it is now evaluating in detail the environmental impact of these actions. In addition to making1 Photovoltaic Installations at Williams College Ruth Aronoff Williams Luce Project SUMMARY

  9. Summary of the Midwest conference on small-scale hydropower in the Midwest: an old technology whose time has come

    SciTech Connect (OSTI)

    None

    1980-05-01T23:59:59.000Z

    A variety of decision makers convened to examine and discuss certain significant problems associated with small-scale hydroelectric development in the Midwestern region, comprised of Illinois, Indiana, Kentucky, Michigan, Ohio, West Virginia, and Wisconsin. The conference opened with an introductory panel of resource persons who outlined the objectives of the conference, presented information on small-scale hydro, and described the materials available to conference participants. A series of workshop sessions followed. Two of the workshop sessions discussed problems and policy responses raised by state and Federal regulation. The remaining two workshops dealt with economic issues confronting small-scale hydro development and the operation and usefulness of the systems dynamics model developed by the Thayer School of Engineering at Dartmouth College. A plenary session and recommendations completed the workshop.

  10. NREL Photovoltaic Program. FY 1994 annual report, October 1, 1993--September 30, 1994

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    This report summarizes the in-house and subcontracted research and development activities under the National renewable Energy Laboratory (NREL) Photovoltaics (PV) program for fiscal year 1994. Research is organized under the following areas; PV program management; crystalline silicon and advanced devices; thin-film PV technologies; PV manufacturing; PV module and system performance and engineering; and PV applications and markets.

  11. An update on environmental, health and safety issues of interest to the photovoltaic industry

    SciTech Connect (OSTI)

    Moskowitz, P.D.; Viren, J.; Fthenakis, V.M.

    1992-08-01T23:59:59.000Z

    There is growing interest in the environmental, health, and safety issues related to new photovoltaic technologies as they approach commercialization. Such issues include potential toxicity of II--VI compounds; the impacts of new environmental regulations on module manufacturers; and, the need for recycling of spent modules and manufacturing wastes. This paper will review these topics. 20 refs.

  12. Photovoltaics (Fact Sheet), SunShot Initiative, U.S. Department of Energy (DOE)

    Broader source: Energy.gov [DOE]

    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.

  13. Simulations of absorbance efficiency and power production of three dimensional tower arrays for use in photovoltaics

    E-Print Network [OSTI]

    Bennett, Gisele

    to the geometrical characteristics of the system aspect ratio, spacing, size, shape, etc. . Simulated modeling has in photovoltaics Jack Flicker1 and Jud Ready2,a 1 Materials Science and Eng., Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA 2 Electro-optical Systems Laboratory, Georgia Tech Research Institute

  14. Appropriate storage for high-penetration grid-connected photovoltaic plants A.A. Solomon a

    E-Print Network [OSTI]

    Kammen, Daniel M.

    % of the PV-generated energy, and needing to re-structure the manner in which the grid was then being operated-or-less arbitrarily sized storage example, and allowing a small amount of PV energy dumping, we showed o Article history: Received 5 April 2011 Accepted 10 October 2011 Keywords: Photovoltaics Energy

  15. Solar photovoltaic residence in Carlisle, Massachusetts

    SciTech Connect (OSTI)

    Strong, S. J.; Nichols, B. E.

    1981-01-01T23:59:59.000Z

    The first solar photovoltaic house designed and constructed under the US Department of Energy's Solar Photovoltaic Residential Project has been completed. The house, which is powered by a 7-kWp PV system, will be used to assess the occupants' acceptance of and reactions to residential photovoltaic systems and to familiarize utilities, builders, developers, town building officials and others with issues concerning photovoltaic installations. The house is located on a two-acre lot in Carlisle, approximately twenty miles northwest of Boston. Built by a local architect/developer team, the house includes energy conservation and passive solar features. It utilizes a roof-mounted, flat-plate PV array which operates in a two-way energy exchange mode with the electric utility. The energy conservation and passive solar features of this house are described and a detailed description of the utility-interactive photovoltaic system is presented, along with initial performance data.

  16. Symbol Keyword My Portfolio CNN.comHome Business News Markets Personal Finance Real Estate Technology Small Business Luxury Fortune

    E-Print Network [OSTI]

    Rogers, John A.

    Cabellon Northrop Grumman Electronic Systems (410) 765-7192 paul.cabellon@ngc.com Top Stories 'It's going Przybysz, a senior consulting engineer at Northrop Grumman. "Carbon nanotube technology changes the way we look at power requirements for military sensor systems because they perform equally with other

  17. EPJ Photovoltaics 2, 20301 (2011) www.epj-pv.org

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2011-01-01T23:59:59.000Z

    EPJ Photovoltaics 2, 20301 (2011) www.epj-pv.org DOI: 10.1051/epjpv/2011001 c Owned by the authors, published by EDP Sciences, 2011 EPJ PhotovoltaicsEPJ Photovoltaics Geometrical optimization and electrical online: 1 April 2011 Abstract This article investigates the optimal efficiency of a photovoltaic system

  18. Photovoltaics Green is a Prerequisite for Sustainable Growth

    E-Print Network [OSTI]

    Ohta, Shigemi

    1 Photovoltaics Green is a Prerequisite for Sustainable Growth Vasilis Fthenakis1 and Brent Nelson2 impact on the environment, are the key drivers of photovoltaic energy development Photovoltaic life Criteria Photovoltaics are required to meet the need for abundant electricity generation at competitive

  19. Advanced photovoltaic-trough development

    SciTech Connect (OSTI)

    Spencer, R.; Yasuda, K.; Merson, B.

    1982-04-01T23:59:59.000Z

    The scope of the work on photvoltaic troughs includes analytical studies, hardware development, and component testing. Various aspects of the system have been optimized and improvements have been realized, particularly in the receiver and reflecting surface designs. An empirical system performance model has been developed that closely agrees with measured system performance. This in-depth study of single-axis reflecting linear focus photovoltaic concentrators will be very beneficial in the development of improved models for similar systems as well as other phtovoltaic concentrator designs.

  20. Photovoltaic Films - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 TheStevenAdministrationPhotometric(dmpePhotovoltaic

  1. Durability of Polymeric Encapsulation Materials for Concentrating Photovoltaic Systems (Poster)

    SciTech Connect (OSTI)

    Miller, D. C.; Kempe, M. D.; Araki, K.; Kennedy, C. E.; Kurtz, S. R.

    2011-02-01T23:59:59.000Z

    Polymeric encapsulation materials are typically used in concentrating photovoltaic (CPV) modules to protect the cell from the field environment. Because it is physically located adjacent to the cell, the encapsulation is exposed to a high optical flux, often including light in the ultraviolet (UV) and infrared (IR) wavelengths. The durability of encapsulants used in CPV modules is critical to the technology, but is presently not well understood. This work seeks to identify the appropriate material types, field-induced failure mechanisms, and factors of influence (if possible) of polymeric encapsulation. These results will ultimately be weighed against those of future qualification and accelerated life test procedures.

  2. Technology

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus TomAboutManusScience and InnovationexperimentsTechnology

  3. Flexible Ultra Moisture Barrier Film for Thin-Film Photovoltaic Applications

    SciTech Connect (OSTI)

    David M. Dean

    2012-10-30T23:59:59.000Z

    Flexible Thin-film photovoltaic (TFPV) is a low cost alternative to incumbent c-Si PV products as it requires less volume of costly semiconductor materials and it can potentially reduce installation cost. Among the TFPV options, copper indium gallium diselenide (CIGS) has the highest efficiency and is believed to be one of the most attractive candidates to achieve PV cost reduction. However, CIGS cells are very moisture sensitive and require module water vapor transmission rate (WVTR) of less than 1x10-4 gram of water per square meter per day (g-H2O/m2/day). Successful development and commercialization of flexible transparent ultra moisture barrier film is the key to enable flexible CIGS TFPV products, and thus enable ultimate PV cost reduction. At DuPont, we have demonstrated at lab scale that we can successfully make polymer-based flexible transparent ultra moisture barrier film by depositing alumina on polymer films using atomic layer deposition (ALD) technology. The layer by layer ALD approach results in uniform and amorphous structure which effectively reduces pinhole density of the inorganic coating on the polymer, and thus allow the fabrication of flexible barrier film with WVTR of 10-5 g-H2O/m2/day. Currently ALD is a time-consuming process suitable only for high-value, relatively small substrates. To successfully commercialize the ALD-on-plastic technology for the PV industry, there is the need to scale up this technology and improve throughput. The goal of this contract work was to build a prototype demonstrating that the ALD technology could be scaled-up for commercial use. Unfortunately, the prototype failed to produce an ultra-barrier film by the close of the project.

  4. The impact of retail rate structures on the economics of commercial photovoltaic systems in California

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01T23:59:59.000Z

    Production of Solar Photovoltaic Cells. ” Center for theR. Margolis. 2004. “Are Photovoltaic Systems Worth More toLepley. 1993. “Distributed photovoltaic system evaluation by

  5. An Analysis of the Effects of Photovoltaic Energy Systems on Residential Selling Prices in California.

    E-Print Network [OSTI]

    Cappers, Peter

    2012-01-01T23:59:59.000Z

    Effects of Residential Photovoltaic Energy Systems on Homeof homes with existing photovoltaic (PV) energy systems havegrid-connected solar photovoltaic (PV) energy systems were

  6. The Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California

    E-Print Network [OSTI]

    Mills, Andrew

    2009-01-01T23:59:59.000Z

    Production of Solar Photovoltaic Cells. ” Center for theR. Margolis. 2004. “Are Photovoltaic Systems Worth More toLepley. 1993. “Distributed photovoltaic system evaluation by

  7. Solar energy storage through the homogeneous electrocatalytic reduction of carbon dioxide : photoelectrochemical and photovoltaic approaches

    E-Print Network [OSTI]

    Sathrum, Aaron John

    2011-01-01T23:59:59.000Z

    electricity from photovoltaic cells to convert CO 2 intoSolar Energy Anode Photovoltaic Cell Cathode PP Mesh SpacerCoupling a Photovoltaic Solar Cell with a Homogeneous

  8. Nanopillar Photovoltaics: Photon Management and Junction Engineering for Next-Generation Solar Cells

    E-Print Network [OSTI]

    Mariani, Giacomo

    2013-01-01T23:59:59.000Z

    for efficient photovoltaic cells, Nat. Nanotechnol. 6, 568-for efficient photovoltaic cells, Nat. Nanotechnol. 6, 568-trapping in thin-film photovoltaic cells, Opt. Express 8,

  9. Producer-Focused Life Cycle Assessment of Thin-Film Silicon Photovoltaic Systems

    E-Print Network [OSTI]

    Zhang, Teresa Weirui

    2011-01-01T23:59:59.000Z

    microcrystalline- silicon photovoltaic cell, B) range ofpayback of roof mounted photovoltaic cells. Boustead, I. andmicrocrystalline-silicon photovoltaic cell, B) range of

  10. Valuing the Time-Varying Electricity Production of Solar Photovoltaic Cells

    E-Print Network [OSTI]

    Borenstein, Severin

    2005-01-01T23:59:59.000Z

    Production of Solar Photovoltaic Cells Severin BorensteinProduction of Solar Photovoltaic Cells Severin Borenstein 1concerns is so- lar photovoltaic cells (PVs), which capture

  11. Low-Cost Photovoltaics: Luminescent Solar Concentrators And Colloidal Quantum Dot Solar Cells

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01T23:59:59.000Z

    using front-facing photovoltaic cell luminescent solarwith front-facing photovoltaic cells using weighted Montefor tandem photovoltaic cells,” Thin Solid Films, vol. 516,

  12. Rational Design and Preparation of Organic Semiconductors for use in Field Effect Transistors and Photovoltaic Cells

    E-Print Network [OSTI]

    Mauldin, Clayton Edward

    2010-01-01T23:59:59.000Z

    in thin film organic photovoltaic cells (OPVs) is presented.Effect Transistors and Photovoltaic Cells By Clayton EdwardEffect Transistors and Photovoltaic Cells By Clayton Edward

  13. Solar energy storage through the homogeneous electrocatalytic reduction of carbon dioxide : photoelectrochemical and photovoltaic approaches

    E-Print Network [OSTI]

    Sathrum, Aaron John

    2011-01-01T23:59:59.000Z

    Hydrogen Generation using Photovoltaic-Electrolysis Devices.6128-6141. Gratzel, M. Photovoltaic and PhotoelectrochemicalHydrogen Generation Using Photovoltaic?Electrolysis Devices.

  14. Photovoltaic Devices Employing Ternary PbSxSe1-x Nanocrystals

    E-Print Network [OSTI]

    Alivisatos, A. Paul

    2009-01-01T23:59:59.000Z

    Photovoltaic Devices Employing Ternary PbS x Se 1-xalloy nanoparticles. Photovoltaic devices made using ternaryInformation for Efficient Photovoltaic Devices Employing

  15. Spectroscopy of Photovoltaic Materials: Charge-Transfer Complexes and Titanium Dioxide

    E-Print Network [OSTI]

    Dillon, Robert

    2013-01-01T23:59:59.000Z

    RIVERSIDE Spectroscopy of Photovoltaic Materials: Charge-DISSERTATION Spectroscopy of Photovoltaic Materials: Charge-function of photovoltaic (PV) and photocatalytic (PC)

  16. Modeling Variability and Uncertainty of Photovoltaic Generation: A Hidden State Spatial Statistical Approach

    E-Print Network [OSTI]

    Callaway, Duncan S; Tabone, Michaelangelo D

    2015-01-01T23:59:59.000Z

    AND UNCERTAINTY OF PHOTOVOLTAIC GENERATION [9] M. Milligan,for grid-connected photovoltaic system based on advancedand uncertainty in solar photovoltaic generation at multiple

  17. Residential Photovoltaic Energy Systems in California: The Effect on Home Sales Prices

    E-Print Network [OSTI]

    Hoen, Ben

    2013-01-01T23:59:59.000Z

    Residential Photovoltaic Energy Systems in California: Thethe marginal impacts of photovoltaic (PV) energy systems ons largest market for photovoltaic solar (PV), with nearly

  18. Producer-Focused Life Cycle Assessment of Thin-Film Silicon Photovoltaic Systems

    E-Print Network [OSTI]

    Zhang, Teresa Weirui

    2011-01-01T23:59:59.000Z

    installed power from photovoltaic systems worldwide fromBest research photovoltaic efficiencies (Kazmerski,as a function of time for numerous types of photovoltaic

  19. A Cradle to Grave Framework for Environmental Assessment of Photovoltaic Systems

    E-Print Network [OSTI]

    Zhang, Teresa; Dornfeld, David

    2010-01-01T23:59:59.000Z

    impacts and costs of photovoltaic systems: Current state ofEnergy Payback Time for Photovoltaic Modules,” ProceedingsLife-cycle assessment of photovoltaic modules: Comparison of

  20. The Potential Impact of Increased Renewable Energy Penetrations on Electricity Bill Savings from Residential Photovoltaic Systems

    E-Print Network [OSTI]

    Barbose, Galen

    2013-01-01T23:59:59.000Z

    California’s Solar Photovoltaic Subsidies? Center for thefrom Residential Photovoltaic Systems Naïm R. Darghouth,FROM RESIDENTIAL PHOTOVOLTAIC SYSTEMS Naïm R. Darghouth

  1. Do Photovoltaic Energy Systems Effect Residential Selling Prices? Results from a California Statewide Investigation.

    E-Print Network [OSTI]

    Hoen, Ben

    2012-01-01T23:59:59.000Z

    DO PHOTOVOLTAIC ENERGY SYSTEMS AFFECT RESIDENTIAL SELLINGopportunity employer. DO PHOTOVOLTAIC ENERGY SYSTEMS AFFECTin the U.S. have sold with photovoltaic (PV) energy systems

  2. Nanocrystal Photovoltaics: The Case of Cu2S-CdS

    E-Print Network [OSTI]

    Rivest, Jessica Louis Baker

    2011-01-01T23:59:59.000Z

    high conversion efficiency photovoltaics, utilizing self-low-cost and low-efficiency photovoltaics. Third generationgeneration photovoltaics: Ultra-high conversion efficiency

  3. Nanopillar Photovoltaics: Photon Management and Junction Engineering for Next-Generation Solar Cells

    E-Print Network [OSTI]

    Mariani, Giacomo

    2013-01-01T23:59:59.000Z

    for ultrahigh-efficiency photovoltaics, Nat. Mater. 11, 174-devices towards high-efficiency photovoltaics”, 39th IEEEto ensure high-efficiency nanostructured photovoltaics: each

  4. Low-Cost Photovoltaics: Luminescent Solar Concentrators And Colloidal Quantum Dot Solar Cells

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01T23:59:59.000Z

    for building integrated photovoltaics,” 2013, vol. 8821, pp.of building integrated photovoltaics,” Sol. Energy, vol. 85,of building-integrated photovoltaics,” Energy, vol. 26, no.

  5. The Effects of Non-Uniform Electronic Properties on Thin Film Photovoltaics

    E-Print Network [OSTI]

    Brown, Gregory Ferguson

    2011-01-01T23:59:59.000Z

    Third   Generation  Photovoltaics:  Advanced  Solar  R.   Noufi,  Prog.  Photovoltaics  16,  235-­?239  (2008).  M.  Green,  Prog.  Photovoltaics  17,  183-­?189  (2009).  

  6. Laser Assisted Nanomanufacturing with Solution Processed Nanoparticles for Low-cost Electronics and Photovoltaics

    E-Print Network [OSTI]

    Pan, Heng

    2009-01-01T23:59:59.000Z

    Electronics and Photovoltaics by Heng Pan A dissertationcost Electronics and Photovoltaics Copyright © 2009 By HengLow-cost Electronics and Photovoltaics by Heng Pan Doctor of

  7. Letting The Sun Shine On Solar Costs: An Empirical Investigation Of Photovoltaic Cost Trends In California

    E-Print Network [OSTI]

    Wiser, Ryan; Bolinger, Mark; Cappers, Peter; Margolis, Robert

    2006-01-01T23:59:59.000Z

    INVESTIGATION OF PHOTOVOLTAIC COST TRENDS IN CALIFORNIA RyanInvestigation of Photovoltaic Cost Trends in California”,cost of customer-sited, grid-connected solar photovoltaic (

  8. Sustainability of Very Large Photovoltaic DeploymentSustainability of Very Large Photovoltaic Deployment email: vmf5@columbia.edu

    E-Print Network [OSTI]

    Ohta, Shigemi

    1 Sustainability of Very Large Photovoltaic DeploymentSustainability of Very Large Photovoltaic for Life Cycle Analysis Columbia University and National Photovoltaics Environmental Research Center, 2006 - Fthenakis & Alsema, Progress in Photovoltaics, 14, 275, 2006 #12;9 0 200 400 600 800 1000 1200

  9. Broad Band Photon Harvesting Biomolecules for Photovoltaics

    E-Print Network [OSTI]

    P. Meredith; B. J. Powell; J. Riesz; R. Vogel; D. Blake; I. Kartini; G. Will; S. Subianto

    2004-06-04T23:59:59.000Z

    We discuss the key principles of artificial photosynthesis for photovoltaic energy conversion. We demonstrate these principles by examining the operation of the so-called "dye sensitized solar cell" (DSSC) - a photoelectrochemical device which simulates the charge separation process across a nano-structured membrane that is characteristic of natural systems. These type of devices have great potential to challenge silicon semiconductor technology in the low cost, medium efficiency segment of the PV market. Ruthenium charge transfer complexes are currently used as the photon harvesting components in DSSCs. They produce a relatively broad band UV and visible response, but have long term stability problems and are expensive to manufacture. We suggest that a class of biological macromolecules called the melanins may be suitable replacements for the ruthenium complexes. They have strong, broad band absorption, are chemically and photochemically very stable, can be cheaply and easily synthesized, and are also bio-available and bio-compatible. We demonstrate a melanin-based regenerative solar cell, and discuss the key properties that are necessary for an effective broad band photon harvesting system.

  10. Summary results of an assessment of research projects in the National Photovoltaics Program

    SciTech Connect (OSTI)

    NONE

    1995-07-01T23:59:59.000Z

    The Office of Energy Research (OER) undertook an assessment of 115 research projects (listed in Appendix A) sponsored by the National Photovoltaics Program. The Program is located within the Office of Energy Efficiency and Renewable Energy (EE). This report summarizes the results of that review. The Office of Solar Energy Conversion is responsible for the management of the National Photovoltaics Program. This program focuses on assisting US industry in development of fundamental technology to bring advanced photovoltaic energy systems to commercial use. The purpose of the assessment was to determine the following: (1) the quality of research of individual projects; (2) the impact of these individual projects on the mission of the program; and (3) the priority of future research opportunities.

  11. University Center of Excellence for Photovoltaics Research and Education: Annual report

    SciTech Connect (OSTI)

    Rohatgi, A.; Crotty, G.; Cai, L.; Sana, P.; Doolittle, A.; Ropp, M.; Krygowski, T.; Narasimha, S. [Georgia Inst. of Tech., Atlanta, GA (United States). School of Electrical and Computer Engineering

    1995-09-01T23:59:59.000Z

    This is a second annual report since the University Center of Excellence for Photovoltaics Research and Education was established at Georgia Tech. The major focus of the center is crystalline silicon, and the mission of the Center is to improve the fundamental understanding of the science and technology of advanced photovoltaic devices and materials, to fabricate high-efficiency cells, and develop low-cost processes, to provide training and enrich the equational experience of students in this field, and to increase US competitiveness by providing guidelines to industry and DOE to achieve cost-effective and high-efficiency photovoltaic devices. This report outlines the work of the Center from July 1993--June 1994.

  12. Small Buildings and Small Portfolios Overview - 2014 BTO Peer...

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

    Technologies Office's Small Buildings and Small Portfolios activities. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs....

  13. Comparison of evolving photovoltaic and nuclear power systems for Earth orbital applications

    SciTech Connect (OSTI)

    Rockey, D.E.; Jones, R.M.; Schulman, I.

    1983-08-01T23:59:59.000Z

    As the Space Shuttle becomes fully operational, NASA and DOD missions may require high power Earth orbital power systems. Total end-to-end comparisons are made for representative photovoltaic and nuclear systems. The photovoltaic systems examined range from flight demonstrated conventional solid substrate solar array/NiCd battery approaches to undemonstrated advanced array/energy storage systems. End-of-life power to mass performance is presented for 25 kW photovoltaic arrays at orbital altitudes ranging from low Earth orbit to geosynchronous orbit for 1, 5, and 10 year missions. The SP-100 nuclear power system is examined for three technology levels ranging from near term to advanced approaches for 25 and 100 kWe power levels. The system specific power, or ratio of load power to power system mass, for each end-to-end photovoltaic and nuclear system is presented. Detailed descriptions of various photovoltaic and nuclear power systems together with their associated electrical block diagrams are also presented.

  14. 2010 Solar Technologies Market Report

    SciTech Connect (OSTI)

    Not Available

    2011-11-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) 2010 Solar Technologies Market Report details the market conditions and trends for photovoltaic (PV) and concentrating solar power (CSP) technologies. Produced by the National Renewable Energy Laboratory (NREL), the report provides a comprehensive overview of the solar electricity market and identifies successes and trends within the market from both global and national perspectives.

  15. Future contingencies and photovoltaic system worth

    SciTech Connect (OSTI)

    Jones, G. J.; Thomas, M. G.; Bonk, G. J.

    1982-01-01T23:59:59.000Z

    The value of dispersed photovoltaic systems connected to the utility grid has been calculated using the General Electric Optimized Generation Planning program. The 1986 to 2001 time period was used for this study. Photovoltaic systems were dynamically integrated, up to 5% total capacity, into 9 NERC based regions under a range of future fuel and economic contingencies. Value was determined by the change in revenue requirements due to the photovoltaic additions. Displacement of high cost fuel was paramount to value, while capacity displacement was highly variable and dependent upon regional fuel mix.

  16. Development of a small selenium barrier layer photovoltaic cell

    E-Print Network [OSTI]

    Pruett, George Richard

    1954-01-01T23:59:59.000Z

    , sad ths ealsnisn ooatad disk oae yXsood 1a the occccco oolsaton nyysrnoeto to snnssX fsr ay~ate+ tcca Certahc yrsosntLcas bsd -te be obsorro4 in preparing tho soisccion Neither the mission neo ths ~ plate shoCcLd bo tso hot daring the first etage...

  17. Introduction to Small-Scale Photovoltaic Systems (Including RETScreen Case

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place: EdenOverview Of TheIntevac Jump to:Framework

  18. SIXTH QUARTERLY REPORT OF RESEARCH ON CuxS - (Cd,Zn)S PHOTOVOLTAIC SOLAR ENERGY CONVERTERS

    E-Print Network [OSTI]

    Chin, B.L.

    2011-01-01T23:59:59.000Z

    for use in experimental photovoltaic cells. Hall mobilityvacuum method for photovoltaic cell fabrication" However,

  19. To appear in: Boden A, Mller C, Nett B. Conducting Business Ethnography in Global Software Development Projects of Small German Enterprises. Information and Software Technology. 2010; accepted for publication.

    E-Print Network [OSTI]

    Development Projects of Small German Enterprises. Information and Software Technology. 2010; accepted with while conducting research in the context of offshoring in small to medium-sized enterprises (SMEs of offshored software development work in SMEs [3,4,5,6]. The first part of the project was an explorative

  20. Summary Review of Advanced Inverter Technologies for Residential PV Systems

    E-Print Network [OSTI]

    and Energy Reliability As part of Cooperative Agreement No. DE-EE0003507 Under Task 3.1: Photovoltaic Systems of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE-EE0003507 Hawai`i Energy Sustainability Program Subtask 3.1 Photovoltaic Systems: Report 2 Summary of Inverter Technologies Submitted

  1. RECYCLABILITY CHALLENGES IN "ABUNDANT" MATERIAL-BASED TECHNOLOGIES Annick Anctila

    E-Print Network [OSTI]

    growth of photovoltaic markets requires investigating three measurable aspects: Cost, resource-3443957, VMF@BNL.GOV ABSTRACT: Much current research in photovoltaic technology is directed towards using sustainability metrics for large-scale PV growth are low cost and minimum environmental impact. As the numbers

  2. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01T23:59:59.000Z

    hydrogen dilution in silane on light induced degradation of hydrogenated amor- phous silicon films for solar photovoltaichydrogen content from 14-22%[76]. Hydrogenated amorphous silicon has promise as a photovoltaic

  3. Battery compatibility with photovoltaic charge controllers

    SciTech Connect (OSTI)

    Harrington, S.R. [Ktech Corp., Albuquerque, NM (United States); Bower, W.I. [Sandia National Labs., Albuquerque, NM (United States)

    1992-12-31T23:59:59.000Z

    Photovoltaic (PV) systems offer a cost-effective solution to provide electrical power for a wide variety of applications, with battery performance playing a major role in their success. This paper presents some of the results of an industry meeting regarding battery specifications and ratings that photovoltaic system designers require, but do not typically have available to them. Communications between the PV industry and the battery industry regarding appropriate specifications have been uncoordinated and poor in the past. This paper also discusses the effort under way involving the PV industry and battery manufacturers, and provides a working draft of specifications to develop and outline the information sorely needed on batteries. The development of this information is referred to as ``Application Notes for Batteries in Photovoltaic Systems.`` The content of these ``notes`` has been compiled from various sources, including the input from the results of a survey on battery use in the photovoltaic industry. Only lead-acid batteries are discussed

  4. Modesto Irrigation District- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Modesto Irrigation District offers a photovoltaic rebate program for all of their electric customers. The peak output capacity of a system must be 1 kW or greater to participate. Systems up to 30...

  5. Practical Roadmap and Limits to Nanostructured Photovoltaics

    E-Print Network [OSTI]

    Lunt, Richard R.

    The significant research interest in the engineering of photovoltaic (PV) structures at the nanoscale is directed toward enabling reductions in PV module fabrication and installation costs as well as improving cell power ...

  6. Performance Assessment of Photovoltaic Attic Ventilator Fans

    E-Print Network [OSTI]

    Parker, D. S.; Sherwin, J. R.

    2000-01-01T23:59:59.000Z

    has long been identified as a method to abate such heat gains. We present test results from using the photovoltaic (PV) attic ventilator fans in a test home to assess impact on attic and cooling energy performance....

  7. Time-Resolved Photoluminescence and Photovoltaics

    SciTech Connect (OSTI)

    Metzger, W. K.; Ahrenkiel, R. K.; Dippo, P.; Geisz, J.; Wanlass, M. W.; Kurtz, S.

    2005-01-01T23:59:59.000Z

    The time-resolved photoluminescence (TRPL) technique and its ability to characterize recombination in bulk photovoltaic semiconductor materials are reviewed. Results from a variety of materials and a few recent studies are summarized and compared.

  8. Sawnee EMC- Solar Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Sawnee EMC offers a rebate of $300 per kilowatt (kW) to residential customers who install photovoltaic (PV) systems that meet the cooperative's [http://www.sawnee.com/Rate%20Pdfs/NEM%20Rider.pdf...

  9. Ashland Electric Utility- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    The City of Ashland Conservation Division offers electric customers installing photovoltaic systems a rebate of either $0.75 per watt (residential) or $1.00 per watt (commercial), up to a maximum...

  10. GreyStone Power- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    GreyStone Power, an electricity cooperative in Georgia, offers a rebate for solar photovoltaic (PV) systems to members. The one-time rebate is offered for PV installations that are interconnected...

  11. Central Georgia EMC- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    In June 2008, Central Georgia Electric Membership Corporation (CGEMC) began offering a rebate of $450 per kilowatt (kW) to residential members who install photovoltaic (PV) systems that are...

  12. Poudre Valley REA- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Poudre Valley REC is providing rebates to their residential customers who install photovoltaic (PV) systems on their homes. This rebate program was timed to coincide with the Colorado Governor's...

  13. Residential photovoltaic worth : a summary assessment

    E-Print Network [OSTI]

    Dinwoodie, Thomas L.

    1982-01-01T23:59:59.000Z

    Two critical perspectives have been addressed by the analyses of residential photovoltaic worth. For the researcher and designer have been established allowable costs. For the homeowner and institutional decision-makers ...

  14. Silicon cast wafer recrystallization for photovoltaic applications

    E-Print Network [OSTI]

    Hantsoo, Eerik T. (Eerik Torm)

    2008-01-01T23:59:59.000Z

    Current industry-standard methods of manufacturing silicon wafers for photovoltaic (PV) cells define the electrical properties of the wafer in a first step, and then the geometry of the wafer in a subsequent step. The ...

  15. Photovoltaic module and module arrays

    DOE Patents [OSTI]

    Botkin, Jonathan (El Cerrito, CA); Graves, Simon (Berkeley, CA); Lenox, Carl J. S. (Oakland, CA); Culligan, Matthew (Berkeley, CA); Danning, Matt (Oakland, CA)

    2012-07-17T23:59:59.000Z

    A photovoltaic (PV) module including a PV device and a frame. The PV device has a PV laminate defining a perimeter and a major plane. The frame is assembled to and encases the laminate perimeter, and includes leading, trailing, and side frame members, and an arm that forms a support face opposite the laminate. The support face is adapted for placement against a horizontal installation surface, to support and orient the laminate in a non-parallel or tilted arrangement. Upon final assembly, the laminate and the frame combine to define a unitary structure. The frame can orient the laminate at an angle in the range of 3.degree.-7.degree. from horizontal, and can be entirely formed of a polymeric material. Optionally, the arm incorporates integral feature(s) that facilitate interconnection with corresponding features of a second, identically formed PV module.

  16. Photovoltaic module and module arrays

    DOE Patents [OSTI]

    Botkin, Jonathan; Graves, Simon; Lenox, Carl J. S.; Culligan, Matthew; Danning, Matt

    2013-08-27T23:59:59.000Z

    A photovoltaic (PV) module including a PV device and a frame, The PV device has a PV laminate defining a perimeter and a major plane. The frame is assembled to and encases the laminate perimeter, and includes leading, trailing, and side frame members, and an arm that forms a support face opposite the laminate. The support face is adapted for placement against a horizontal installation surface, to support and orient the laminate in a non-parallel or tilted arrangement. Upon final assembly, the laminate and the frame combine to define a unitary structure. The frame can orient the laminate at an angle in the range of 3.degree.-7.degree. from horizontal, and can be entirely formed of a polymeric material. Optionally, the arm incorporates integral feature(s) that facilitate interconnection with corresponding features of a second, identically formed PV module.

  17. Deadline Approaching for Small Business Innovation Research Opportunit...

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

    of Energy's Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) awards, which help small businesses develop technologies with a strong...

  18. Photovoltaic concentrator assembly with optically active cover

    DOE Patents [OSTI]

    Plesniak, Adam P

    2014-01-21T23:59:59.000Z

    A photovoltaic concentrator assembly that includes a housing that defines an internal volume and includes a rim, wherein the rim defines an opening into the internal volume, a photovoltaic cell positioned in the internal volume, and an optical element that includes an optically active body and a flange extending outward from the body, wherein the flange is sealingly engaged with the rim of the housing to enclose the internal volume.

  19. Lithium Ion Cell Development for Photovoltaic Energy Storage Applications

    SciTech Connect (OSTI)

    Susan Babinec

    2012-02-08T23:59:59.000Z

    The overall project goal is to reduce the cost of home and neighborhood photovoltaic storage systems by reducing the single largest cost component â?? the energy storage cells. Solar power is accepted as an environmentally advantaged renewable power source. Its deployment in small communities and integrated into the grid, requires a safe, reliable and low cost energy storage system. The incumbent technology of lead acid cells is large, toxic to produce and dispose of, and offer limited life even with significant maintenance. The ideal PV storage battery would have the safety and low cost of lead acid but the performance of lithium ion chemistry. Present lithium ion batteries have the desired performance but cost and safety remain the two key implementation barriers. The purpose of this project is to develop new lithium ion cells that can meet PVES cost and safety requirements using A123Systems phosphate-based cathode chemistries in commercial PHEV cell formats. The cost target is a cell design for a home or neighborhood scale at <$25/kWh. This DOE program is the continuation and expansion of an initial MPSC (Michigan Public Service Commission) program towards this goal. This program further pushes the initial limits of some aspects of the original program â?? even lower cost anode and cathode actives implemented at even higher electrode loadings, and as well explores new avenues of cost reduction via new materials â?? specifically our higher voltage cathode. The challenge in our materials development is to achieve parity in the performance metrics of cycle life and high temperature storage, and to produce quality materials at the production scale. Our new cathode material, M1X, has a higher voltage and so requires electrolyte reformulation to meet the high temperature storage requirements. The challenge of thick electrode systems is to maintain adequate adhesion and cycle life. The composite separator has been proven in systems having standard loading electrodes; the challenge with this material will be to maintain proven performance when this composite is coated onto a thicker electrode; as well the high temperature storage must meet application requirements. One continuing program challenge was the lack of specific performance variables for this PV application and so the low power requirements of PHEV/EV transportation markets were again used.

  20. Low-Cost Photovoltaics: Luminescent Solar Concentrators And Colloidal Quantum Dot Solar Cells

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01T23:59:59.000Z

    Photovoltaic Solar Energy Conference and Exhibition, Barcelona, Spain,Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain,