National Library of Energy BETA

Sample records for biomass bio-gas photovoltaic

  1. Fuel Cells on Bio-Gas (Presentation)

    SciTech Connect (OSTI)

    Remick, R. J.

    2009-03-04

    The conclusions of this presentation are: (1) Fuel cells operating on bio-gas offer a pathway to renewable electricity generation; (2) With federal incentives of $3,500/kW or 30% of the project costs, reasonable payback periods of less than five years can be achieved; (3) Tri-generation of electricity, heat, and hydrogen offers an alternative route to solving the H{sub 2} infrastructure problem facing fuel cell vehicle deployment; and (4) DOE will be promoting bio-gas fuel cells in the future under its Market Transformation Programs.

  2. BioGas Energy Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC Jump to:BioGas Energy Inc Jump to:

  3. Bio-Gas Technologies, LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC Jump to: navigation, search Name:

  4. Residential photovoltaics

    SciTech Connect (OSTI)

    None, None

    2009-01-18

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

  5. Photovoltaic roof heat flux

    E-Print Network [OSTI]

    Samady, Mezhgan Frishta

    2011-01-01

    Effect of building integrated photovoltaics on microclimateof a building's integrated-photovoltaics on heating a n dgaps for building- integrated photovoltaics, Solar Energy

  6. EELE408 Photovoltaics Lecture 20: Photovoltaic Systems

    E-Print Network [OSTI]

    Kaiser, Todd J.

    1 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 · 6. Determine battery size for recommended reserve time Photovoltaic System Design Block Diagram Ph

  7. Photovoltaics Special Research

    E-Print Network [OSTI]

    New South Wales, University of

    1999 Photovoltaics Special Research Centre UUNNSSWW 1999 Photovoltaics Special Research Centre The University of New South Wales Centre for Photovoltaic Engineering Electrical Engineering Building contains three sections which are colour coded as follows: Red: Photovoltaics Special Research Centre End

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

    Open Energy Info (EERE)

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

  9. 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

  10. Photovoltaics information user study

    SciTech Connect (OSTI)

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

    1980-10-01

    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.

  11. Photovoltaic roof heat flux

    E-Print Network [OSTI]

    Samady, Mezhgan Frishta

    2011-01-01

    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

  12. 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

  13. 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

  14. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01

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

  15. Photovoltaic Technology Basics

    Broader source: Energy.gov [DOE]

    Photovoltaic (PV) materials and devices convert sunlight into electrical energy, and PV cells are commonly known as solar cells. Photovoltaics can literally be translated as light-electricity.

  16. 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 with the lowest output · Cells usually matched to each other · Shaded cell acts like poor cell ­ Significantly

  17. Biomass pretreatment

    DOE Patents [OSTI]

    Hennessey, Susan Marie; Friend, Julie; Elander, Richard T; Tucker, III, Melvin P

    2013-05-21

    A method is provided for producing an improved pretreated biomass product for use in saccharification followed by fermentation to produce a target chemical that includes removal of saccharification and or fermentation inhibitors from the pretreated biomass product. Specifically, the pretreated biomass product derived from using the present method has fewer inhibitors of saccharification and/or fermentation without a loss in sugar content.

  18. PHOTOVOLTAICS SPECIAL RESEARCH

    E-Print Network [OSTI]

    New South Wales, University of

    PHOTOVOLTAICS SPECIAL RESEARCH CENTRE UNSW ANNUAL REPORT 1997 #12;PHOTOVOLTAICS SPECIAL RESEARCH CENTRE UNSW ANNUAL REPORT 1997 Photovoltaics Special Research Centre School of Electrical Engineering.labs@unsw.edu.au WWW: http://www.pv.unsw.edu.au THE UNIVERSITY OF NEW SOUTH WALES The Photovoltaics Special Research

  19. Photovoltaic solar concentrator

    DOE Patents [OSTI]

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

    2015-09-08

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

  20. Photovoltaics: New opportunities for utilities

    SciTech Connect (OSTI)

    Not Available

    1991-07-01

    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.

  1. Interfacial Engineering of Molecular Photovoltaics

    E-Print Network [OSTI]

    Shelton, Steven Wade

    2014-01-01

    Engineering of Molecular Photovoltaics by Steven WadeEngineering of Molecular Photovoltaics Copyright © 2014 byEngineering of Molecular Photovoltaics by Steven Wade

  2. CATALYTIC BIOMASS LIQUEFACTION

    E-Print Network [OSTI]

    Ergun, Sabri

    2013-01-01

    Solvent Systems Catalystic Biomass Liquefaction Investigatereactor Product collection Biomass liquefaction process12-13, 1980 CATALYTIC BIOMASS LIQUEFACTION Sabri Ergun,

  3. AGCO Biomass Solutions: Biomass 2014 Presentation

    Broader source: Energy.gov [DOE]

    Plenary IV: Advances in Bioenergy Feedstocks—From Field to Fuel AGCO Biomass Solutions: Biomass 2014 Presentation Glenn Farris, Marketing Manager Biomass, AGCO Corporation

  4. Electroluminescence in photovoltaic cell

    E-Print Network [OSTI]

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

    2011-01-01

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

  5. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    DOE Solar Energy Technologies Program

    2011-06-27

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

  6. 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.

    2012-10-15

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

  7. Amorphous silicon photovoltaic devices

    DOE Patents [OSTI]

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

    2004-08-31

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

  8. PHOTOVOLTAICS EXCELLENCE IS

    E-Print Network [OSTI]

    New South Wales, University of

    #12;THE PHOTOVOLTAICS CENTRE OF EXCELLENCE IS A CENTRE OF EXCELLENCE OF THE AUSTRALIAN RESEARCH) Photovoltaics Centre of Excellence commenced at the University of New South Wales (UNSW) on 13th June, 2003 silicon photovoltaic research on three separate fronts, as well as to apply these advances to the related

  9. Photovoltaic device and method

    DOE Patents [OSTI]

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

    2015-11-24

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

  10. Photovoltaic device and method

    DOE Patents [OSTI]

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

    2015-01-27

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

  11. PHOTOVOLTAICS AND COMMERCIAL BUILDINGS--

    E-Print Network [OSTI]

    Perez, Richard R.

    PHOTOVOLTAICS AND COMMERCIAL BUILDINGS-- A NATURAL MATCH A study highlighting strategic opportunities and locations for using photovoltaics to power businesses #12;SHOULD PV BE IN YOUR BUSINESS PLAN know that solar energy is environ- mentally attractive--and that photovoltaic or PV systems have made

  12. Oscar Wilkie BE in Photovoltaics

    E-Print Network [OSTI]

    New South Wales, University of

    Oscar Wilkie BE in Photovoltaics and solar EnErgy EnginEEring What dO PhOtOvOltaics engineers dO? Photovoltaics engineering focuses on the manufacture and use of photovoltaic solar cells to generate electricity with an increased need for specialised photovoltaics engineers and there are constantly new opportunities arising

  13. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01

    cells: An overview. Progress in Photovoltaics: Research andnanoparticles. Progress in Photovoltaics, 19( 3):260–265,

  14. Biomass Surface Characterization Laboratory

    E-Print Network [OSTI]

    the recalcitrant nature of biomass feedstocks and the performance of techniques to deconstruct biomass NREL of biomass feedstocks. BSCL imaging capabilities include: · Confocal microscopy and Raman microscopy

  15. Photovoltaic technology assessment

    SciTech Connect (OSTI)

    Backus, C.E.

    1981-01-01

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

  16. Solar Photovoltaic SPECIFICATION, CHECKLIST...

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

    CHECKLIST AND GUIDE Renewable Energy Ready Home Renewable Energy Ready Home SOLAR PHOTOVOLTAIC SPECIFICATION, CHECKLIST AND GUIDE i Table of Contents About the...

  17. 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.

  18. 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...

  19. Concentrating Photovoltaics (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2009-01-20

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

  20. Photovoltaics Business Models

    SciTech Connect (OSTI)

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

    2008-02-01

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

  1. Biomass Feedstocks

    Broader source: Energy.gov [DOE]

    A feedstock is defined as any renewable, biological material that can be used directly as a fuel, or converted to another form of fuel or energy product. Biomass feedstocks are the plant and algal materials used to derive fuels like ethanol, butanol, biodiesel, and other hydrocarbon fuels. Examples of biomass feedstocks include corn starch, sugarcane juice, crop residues such as corn stover and sugarcane bagasse, purpose-grown grass crops, and woody plants. The Bioenergy Technologies Office works in partnership with the U.S. Department of Agriculture (USDA), national laboratories, universities, industry, and other key stakeholders to identify and develop economically, environmentally, and socially sustainable feedstocks for the production of energy, including transportation fuels, electrical power and heat, and other bioproducts. Efforts in this area will ultimately support the development of technologies that can provide a large and sustainable cellulosic biomass feedstock supply of acceptable quality and at a reasonable cost for use by the developing U.S. advanced biofuel industry.

  2. DANISHBIOETHANOLCONCEPT Biomass conversion for

    E-Print Network [OSTI]

    DANISHBIOETHANOLCONCEPT Biomass conversion for transportation fuel Concept developed at RISØ and DTU Anne Belinda Thomsen (RISØ) Birgitte K. Ahring (DTU) #12;DANISHBIOETHANOLCONCEPT Biomass: Biogas #12;DANISHBIOETHANOLCONCEPT Pre-treatment Step Biomass is macerated The biomass is cut in small

  3. Biomass shock pretreatment

    DOE Patents [OSTI]

    Holtzapple, Mark T.; Madison, Maxine Jones; Ramirez, Rocio Sierra; Deimund, Mark A.; Falls, Matthew; Dunkelman, John J.

    2014-07-01

    Methods and apparatus for treating biomass that may include introducing a biomass to a chamber; exposing the biomass in the chamber to a shock event to produce a shocked biomass; and transferring the shocked biomass from the chamber. In some aspects, the method may include pretreating the biomass with a chemical before introducing the biomass to the chamber and/or after transferring shocked biomass from the chamber.

  4. Microsystems Enabled Photovoltaics

    ScienceCinema (OSTI)

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

    2014-06-23

    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.

  5. Photovoltaics industry profile

    SciTech Connect (OSTI)

    1980-10-01

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

  6. Photovoltaics Centre of Excellence The Photovoltaics Centre of Excellence

    E-Print Network [OSTI]

    New South Wales, University of

    Photovoltaics Centre of Excellence #12;The Photovoltaics Centre of Excellence is a Centre;#12;Photovoltaics involve the direct conversion of light, normally sunlight, into electricity when falling upon to its leading role in microelectronics. The Australian Research Council (ARC) Photovoltaics Centre

  7. ANNUAL REPORT 1998 PHOTOVOLTAICS GROUP

    E-Print Network [OSTI]

    New South Wales, University of

    ANNUAL REPORT 1998 UNSW PHOTOVOLTAICS GROUP ANNUAL REPORT 1998 UNSW PHOTOVOLTAICS GROUP #12;THE UNIVERSITY OF NEW SOUTH WALES THE PHOTOVOLTAICS SPECIAL RESEARCH CENTRE IS A SPECIAL RESEARCH CENTRE OF THE AUSTRALIAN RESEARCH COUNCIL THE KEY CENTRE FOR PHOTOVOLTAIC ENGINEERING IS A KEY CENTRE OF THE AUSTRALIAN

  8. 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

  9. Metallic nanostructures for optoelectronic and photovoltaic applications

    E-Print Network [OSTI]

    Lim, Swee Hoe

    2009-01-01

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

  10. 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

  11. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01

    costs for installed photovoltaic systems. This graph showsOne dollar per watt photovoltaic systems workshop sum- mary,costs for installed photovoltaic systems. This graph shows

  12. 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.

  13. Photovoltaic roof heat flux

    E-Print Network [OSTI]

    Samady, Mezhgan Frishta

    2011-01-01

    e l Atmosphere ceiling, back panel roof, exposed roof insideSAN DIEGO Photovoltaic Roof Heat Flux A Thesis submitted i no n Convection Exposed Roof Temperature Seasonal Temperature

  14. Photovoltaic decision analysis

    E-Print Network [OSTI]

    Goldman, Neil L.

    1977-01-01

    This paper is concerned with the development and implementation of a methodology that analyzes information relating to the choice between flat plate and concentrator technologies for photovoltaic development. A

  15. 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...

  16. Organic Photovoltaics Research

    Broader source: Energy.gov [DOE]

    DOE funds research and development projects related to organic photovoltaics (OPV) due to the unique benefits of the technology. Below is a list of the projects, summary of the benefits, and...

  17. 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 ...

  18. Organic photovoltaics and concentrators

    E-Print Network [OSTI]

    Mapel, Jonathan King

    2008-01-01

    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 solar cell

    DOE Patents [OSTI]

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

    2014-05-20

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

  20. Photovoltaic Research Facilities

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  1. Photovoltaic solar cell

    DOE Patents [OSTI]

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

    2013-11-26

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

  2. Amonix Photovoltaic System

    Broader source: Energy.gov [DOE]

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

  3. Photovoltaics: The next generation

    SciTech Connect (OSTI)

    Wilson, A.

    1986-08-01

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

  4. Photovoltaic systems and applications

    SciTech Connect (OSTI)

    Not Available

    1982-01-01

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

  5. Photovoltaic module and interlocked stack of photovoltaic modules

    DOE Patents [OSTI]

    Wares, Brian S.

    2014-09-02

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

  6. 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 and Te from Cadmium Telluride Photovoltaic Manufacturing Scrap, Progress in Photovoltaics: Research

  7. CATALYTIC LIQUEFACTION OF BIOMASS

    E-Print Network [OSTI]

    Seth, Manu

    2012-01-01

    liquid Fuels from Biomass: "Catalyst Screening and KineticUC-61 (l, RCO osn CDL or BIOMASS CATALYTIC LIQUEFACTION ManuCATALYTIC LIQUEFACTION OF BIOMASS Manu Seth, Roger Djafar,

  8. CATALYTIC BIOMASS LIQUEFACTION

    E-Print Network [OSTI]

    Ergun, Sabri

    2013-01-01

    Contractors' Meeting Biomass Energy Systems Branch Berkeley,The Department of Energy's Biomass Liquefaction Testand energy balances, was not possible. One important question remaining unanswered was whether aqueous biomass

  9. CATALYTIC BIOMASS LIQUEFACTION

    E-Print Network [OSTI]

    Ergun, Sabri

    2013-01-01

    LBL-11 019 UC-61 CATALYTIC BIOMASS LIQUEFACTION Sabri Ergun,Catalytic Liquefaction of Biomass,n M, Seth, R. Djafar, G.of California. CATALYTIC BIOMASS LIQUEFACTION QUARTERLY

  10. 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...

  11. Biomass Analytical Library

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

    diversity and performance, The chemical and physical properties of biomass and biomass feedstocks are characterized as they move through the supply chain to various conversion...

  12. Biomass 2012 Agenda

    Office of Energy Efficiency and Renewable Energy (EERE)

    Detailed agenda from the July 10-11, 2012, Biomass conference--Biomass 2012: Confronting Challenges, Creating Opportunities - Sustaining a Commitment to Bioenergy.

  13. Transforming Biomass - main page

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

    Transforming Biomass to Bioenergy Feedstocks The DOE Biomass Program has shaped the vision of a national, commodity-scale feedstock supply system. Much progress has been made in...

  14. Photovoltaic Subcontract Program

    SciTech Connect (OSTI)

    Surek, Thomas; Catalano, Anthony

    1993-03-01

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

  15. Nanowires enabling strained photovoltaics

    SciTech Connect (OSTI)

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

    2014-04-21

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

  16. Technical Potential for Solar Photovoltaics

    E-Print Network [OSTI]

    Branoff, Theodore J.

    Technical Potential for Solar Photovoltaics in Illinois May 2013 #12;Authors ...................................................................................................... 1.1 Utility-Scale Solar Photovoltaic Systems in the U.S. ........................... 1.2 Previous ...................................................................................................... 3.1 Optimization Matrix for Large-Scale PV System Applications ......... 3.2 Photovoltaic

  17. High efficiency photovoltaic device

    DOE Patents [OSTI]

    Guha, Subhendu (Troy, MI); Yang, Chi C. (Troy, MI); Xu, Xi Xiang (Findlay, OH)

    1999-11-02

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

  18. 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

    2014-04-15

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

  19. Biomass treatment method

    DOE Patents [OSTI]

    Friend, Julie (Claymont, DE); Elander, Richard T. (Evergreen, CO); Tucker, III; Melvin P. (Lakewood, CO); Lyons, Robert C. (Arvada, CO)

    2010-10-26

    A method for treating biomass was developed that uses an apparatus which moves a biomass and dilute aqueous ammonia mixture through reaction chambers without compaction. The apparatus moves the biomass using a non-compressing piston. The resulting treated biomass is saccharified to produce fermentable sugars.

  20. Photovoltaic Energy Conversion

    E-Print Network [OSTI]

    Glashausser, Charles

    Photovoltaic Energy Conversion Frank Zimmermann #12;Solar Electricity Generation Consumes no fuel Electrode Valence Band Conduction Band Fermi Level I- /I3 - Redox Potential Dye 1D 3D* 1D* Energy Levels Counter Electrode Valence Band Conduction Band Fermi Level I- /I3 - Redox Potential Dye 1D 3D* 1D* Energy

  1. Formed photovoltaic module busbars

    DOE Patents [OSTI]

    Rose, Douglas; Daroczi, Shan; Phu, Thomas

    2015-11-10

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

  2. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    DOE Solar Energy Technologies Program

    2011-10-13

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

  3. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

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

  4. Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-11-01

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

  5. Thin film photovoltaic cell

    DOE Patents [OSTI]

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

    1982-01-01

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

  6. BIOMASS ENERGY CONVERSION IN HAWAII

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    Operations, vol. 2 of Biomass Energy (Stanford: StanfordPhotosynthethic Pathway Biomass Energy Production," ~c:_! _LBL-11902 UC-61a BIOMASS ENERGY CONVERSION IN HAWAII

  7. BIOMASS ENERGY CONVERSION IN HAWAII

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    Report, (unpublished, 1979). Biomass Project Progress 31.Operations, vol. 2 of Biomass Energy (Stanford: StanfordPhotosynthethic Pathway Biomass Energy Production," ~c:_! _

  8. Photovoltaic module and interlocked stack of photovoltaic modules

    DOE Patents [OSTI]

    Wares, Brian S.

    2012-09-04

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

  9. Temperature compensated photovoltaic array

    DOE Patents [OSTI]

    Mosher, D.M.

    1997-11-18

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

  10. Temperature compensated photovoltaic array

    DOE Patents [OSTI]

    Mosher, Dan Michael (Plano, TX)

    1997-11-18

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

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

    E-Print Network [OSTI]

    Borenstein, Severin

    2008-01-01

    Large Grid- Connected Photovoltaic Systems in California andEconomics of Commercial Photovoltaic Systems in California,”

  12. Photovoltaic-thermal collectors

    DOE Patents [OSTI]

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

    1984-04-24

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

  13. Iron Chalcogenide Photovoltaic Absorbers

    SciTech Connect (OSTI)

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

    2011-08-10

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

  14. Sandia Photovoltaics Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool FitsProjectData Dashboard RutlandSTEAB's PrioritiesFuelofPhotovoltaics Program

  15. Photovoltaic self-assembly.

    SciTech Connect (OSTI)

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

    2010-10-01

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

  16. Photovoltaic module reliability workshop

    SciTech Connect (OSTI)

    Mrig, L. (ed.)

    1990-01-01

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

  17. Biomass for Electricity Generation

    Reports and Publications (EIA)

    2002-01-01

    This paper examines issues affecting the uses of biomass for electricity generation. The methodology used in the National Energy Modeling System to account for various types of biomass is discussed, and the underlying assumptions are explained.

  18. Scattering Properties of nanostructures : applications to photovoltaics

    E-Print Network [OSTI]

    Derkacs, Daniel

    2009-01-01

    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. Photon management in thermal and solar photovoltaics

    E-Print Network [OSTI]

    Hu, Lu

    2008-01-01

    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 ...

  20. Original article Root biomass and biomass increment in a beech

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North ­ This study is part of a larger project aimed at quantifying the biomass and biomass increment been developed to estimate the biomass and biomass increment of coarse, small and fine roots of trees

  1. Pretreated densified biomass products

    DOE Patents [OSTI]

    Dale, Bruce E; Ritchie, Bryan; Marshall, Derek

    2014-03-18

    A product comprising at least one densified biomass particulate of a given mass having no added binder and comprised of a plurality of lignin-coated plant biomass fibers is provided, wherein the at least one densified biomass particulate has an intrinsic density substantially equivalent to a binder-containing densified biomass particulate of the same given mass and h a substantially smooth, non-flakey outer surface. Methods for using and making the product are also described.

  2. 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.

  3. 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.

  4. Utility-scale photovoltaic concentrators

    SciTech Connect (OSTI)

    None, None

    2009-01-18

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

  5. AVAILABLE NOW! Biomass Funding

    E-Print Network [OSTI]

    AVAILABLE NOW! Biomass Funding Guide 2010 The Forestry Commission and the Humber Rural Partnership (co-ordinated by East Riding of Yorkshire Council) have jointly produced a biomass funding guide fuel prices continue to rise, and the emerging biomass sector is well-placed to make a significant

  6. Biomass Program Biopower Factsheet

    SciTech Connect (OSTI)

    2010-03-01

    Generating electricity and thermal energy from biomass has the potential to help meet national goals for renewable energy. The forest products industry has used biomass for power and heat for many decades, yet widespread use of biomass to supply electricity to the U.S. power grid and other applications is relatively recent.

  7. Southwest Photovoltaic Systems Inc | Open Energy Information

    Open Energy Info (EERE)

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

  8. ULTRATHIN FLEXIBLE CRYSTALLINE SILICON: MICROSYSTEMS ENABLED PHOTOVOLTAICS

    E-Print Network [OSTI]

    ULTRATHIN FLEXIBLE CRYSTALLINE SILICON: MICROSYSTEMS ENABLED PHOTOVOLTAICS Jose L. Cruz Photovoltaics (MEPV) is a technique to create solar cells relying on tools from the microsystems and integrated

  9. Organic Photovoltaics Experiments Showcase 'Superfacility' Concept

    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...

  10. Ris Energy Report 5 Photovoltaics 6.3.1 Photovoltaics

    E-Print Network [OSTI]

    kREbs, RIsø NATIONAL LAbORATORy, DENMARk The market for photovoltaics (PV, or solar cells) has grown? Crystalline silicon remains the standard PV technology, with a market share that has increased from 85 Photovoltaics 6.3.1 less than half the market. Figure 18 shows that the cost of traditional PV technology has

  11. Understanding Biomass Feedstock Variability

    SciTech Connect (OSTI)

    Kevin L. Kenney; William A. Smith; Garold L. Gresham; Tyler L. Westover

    2013-01-01

    If the singular goal of biomass logistics and the design of biomass feedstock supply systems is to reduce the per ton supply cost of biomass, these systems may very well develop with ultimate unintended consequences of highly variable and reduced quality biomass feedstocks. This paper demonstrates that due to inherent species variabilities, production conditions, and differing harvest, collection, and storage practices, this is a very real scenario that biomass producers and suppliers as well as conversion developers should be aware of. Biomass feedstock attributes of ash, carbohydrates, moisture, and particle morphology will be discussed. We will also discuss specifications for these attributes, inherent variability of these attributes in biomass feedstocks, and approaches and solutions for reducing variability for improving feedstock quality.

  12. Understanding Biomass Feedstock Variability

    SciTech Connect (OSTI)

    Kevin L. Kenney; Garold L. Gresham; William A. Smith; Tyler L. Westover

    2013-01-01

    If the singular goal of biomass logistics and the design of biomass feedstock supply systems is to reduce the per-ton supply cost of biomass, these systems may very well develop with ultimate unintended consequences of highly variable and reduced quality biomass feedstocks. This paper demonstrates that, due to inherent species variabilities, production conditions and differing harvest, collection and storage practices, this is a very real scenario that biomass producers and suppliers as well as conversion developers should be aware of. Biomass feedstock attributes of ash, carbohydrates, moisture and particle morphology will be discussed. We will also discuss specifications for these attributes, inherent variability of these attributes in biomass feedstocks, and approaches and solutions for reducing variability for improving feedstock quality.

  13. Graphite-based photovoltaic cells

    DOE Patents [OSTI]

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

    2010-12-28

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

  14. Sustainable use of California biomass resources can help meet state and national bioenergy targets

    E-Print Network [OSTI]

    Jenkins, Bryan M; Williams, Robert B; Gildart, Martha C; Kaffka, Stephen R.; Hartsough, Bruce; Dempster, Peter G

    2009-01-01

    waste in landfills, or biogas from municipal wastewaterheat for industrial uses. Biogas potential from landfills,Bio]gas-to-liquids (GTL) Gas Biogas Biomethane Compressed

  15. 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)

    2012-06-05

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

  16. Photovoltaic panel clamp

    DOE Patents [OSTI]

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

    2013-03-19

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

  17. Bracket for photovoltaic modules

    DOE Patents [OSTI]

    Ciasulli, John; Jones, Jason

    2014-06-24

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

  18. Thin film photovoltaic device

    DOE Patents [OSTI]

    Catalano, A.W.; Bhushan, M.

    1982-08-03

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

  19. Photovoltaic manufacturing technology

    SciTech Connect (OSTI)

    Wohlgemuth, J.H.; Whitehouse, D.; Wiedeman, S.; Catalano, A.W.; Oswald, R. (Solarex Corp., Frederick, MD (United States))

    1991-12-01

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

  20. Photovoltaic Degradation Risk: Preprint

    SciTech Connect (OSTI)

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

    2012-04-01

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

  1. Thin film photovoltaic device

    DOE Patents [OSTI]

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

    1982-01-01

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

  2. Photovoltaics | Open Energy Information

    Open Energy Info (EERE)

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

  3. Photovoltaic System Fault Detection

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access| DepartmentPeerFederal FleetUp in thePhotonPhotosPhotovoltaic

  4. Sandia Energy - 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNewPhotoionization MassPhotovoltaic

  5. NREL Center for Photovoltaics

    ScienceCinema (OSTI)

    None

    2013-05-29

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

  6. Photovoltaic Product Directory and Buyers Guide

    SciTech Connect (OSTI)

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

    1984-04-01

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

  7. Complex pendulum biomass sensor

    DOE Patents [OSTI]

    Hoskinson, Reed L. (Rigby, ID); Kenney, Kevin L. (Idaho Falls, ID); Perrenoud, Ben C. (Rigby, ID)

    2007-12-25

    A complex pendulum system biomass sensor having a plurality of pendulums. The plurality of pendulums allow the system to detect a biomass height and density. Each pendulum has an angular deflection sensor and a deflector at a unique height. The pendulums are passed through the biomass and readings from the angular deflection sensors are fed into a control system. The control system determines whether adjustment of machine settings is appropriate and either displays an output to the operator, or adjusts automatically adjusts the machine settings, such as the speed, at which the pendulums are passed through the biomass. In an alternate embodiment, an entanglement sensor is also passed through the biomass to determine the amount of biomass entanglement. This measure of entanglement is also fed into the control system.

  8. Advanced Biomass Gasification Projects

    SciTech Connect (OSTI)

    Not Available

    1997-08-01

    DOE has a major initiative under way to demonstrate two high-efficiency gasification systems for converting biomass into electricity. As this fact sheet explains, the Biomass Power Program is cost-sharing two scale-up projects with industry in Hawaii and Vermont that, if successful, will provide substantial market pull for U.S. biomass technologies, and provide a significant market edge over competing foreign technologies.

  9. Biomass 2010 Conference Agenda | Department of Energy

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

    0 Conference Agenda Biomass 2010 Conference Agenda Biomass 2010 Conference Agenda bio2010fullagenda.pdf More Documents & Publications Biomass 2009 Conference Agenda Biomass 2011...

  10. Algal Biomass Valorization

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

    2015 Project Peer Review 1.3.4.300 Algal Biomass Valorization BETO Algae Platform - Peer review Alexandria, VA March 24 th , 2015 Lieve Laurens National Renewable Energy...

  11. Biomass Feed and Gasification

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

    conventional oil refining. Activities support research for handling and processing of coal-biomass mixtures, ensuring those mixtures are compatible with feed delivery systems,...

  12. Overview of biomass technologies

    SciTech Connect (OSTI)

    None, None

    2009-01-18

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

  13. Gasification-based biomass

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The gasification-based biomass section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  14. Biomass Processing Photolibrary

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Research related to bioenergy is a major focus in the U.S. as science agencies, universities, and commercial labs seek to create new energy-efficient fuels. The Biomass Processing Project is one of the funded projects of the joint USDA-DOE Biomass Research and Development Initiative. The Biomass Processing Photolibrary has numerous images, but there are no accompanying abstracts to explain what you are seeing. The project website, however, makes available the full text of presentations and publications and also includes an exhaustive biomass glossary that is being developed into an ASAE Standard.

  15. Direct-fired biomass

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The direct-fired biomass section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  16. Co-firing biomass

    SciTech Connect (OSTI)

    Hunt, T.; Tennant, D. [Hunt, Guillot & Associates LLC (United States)

    2009-11-15

    Concern about global warming has altered the landscape for fossil-fuel combustion. The advantages and challenges of co-firing biomass and coal are discussed. 2 photos.

  17. High Performance Photovoltaic Project Overview

    SciTech Connect (OSTI)

    Symko-Davies, M.; McConnell, R.

    2005-01-01

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

  18. Photovoltaic module with adhesion promoter

    DOE Patents [OSTI]

    2013-10-08

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

  19. Fabrication and Characterization of Organic/Inorganic Photovoltaic Devices

    E-Print Network [OSTI]

    Guvenc, Ali Bilge

    2012-01-01

    Third generation photovoltaics: solar cells for 2020 andfor use in organic photovoltaics, Solar Energy Materials andSolar cell efficiency tables (Version 27), Progress in Photovoltaics

  20. Optical Design Considerations for High Conversion Efficiency in Photovoltaics

    E-Print Network [OSTI]

    Ganapati, Vidya

    2015-01-01

    thermophotovoltaics. In solar photovoltaics, radiation fromto the efficiency of solar photovoltaics can have largeof efficiency in solar photovoltaics, and looks at how

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

    E-Print Network [OSTI]

    Bolinger, Mark

    2009-01-01

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

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

    E-Print Network [OSTI]

    Zeng, Dekong

    2012-01-01

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

  3. Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies

    E-Print Network [OSTI]

    Wang, Chunhua

    2011-01-01

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

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

    E-Print Network [OSTI]

    Zeng, Dekong

    2012-01-01

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

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

    E-Print Network [OSTI]

    Borenstein, Severin

    2008-01-01

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

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

    E-Print Network [OSTI]

    Kavulak, David Fredric Joel

    2010-01-01

    film transistors 1-4 and photovoltaic cells. 5-9 Among thesePhotovoltaic Cell .the materials, all photovoltaic cells operate on the basic

  7. Fabrication and Characterization of Organic/Inorganic Photovoltaic Devices

    E-Print Network [OSTI]

    Guvenc, Ali Bilge

    2012-01-01

    Diodes, Photodiodes, and Photovoltaic Cells, Applied Physicsprocessable polymer photovoltaic cells by self-organizationand their influence on photovoltaic cells, Solar Energy

  8. Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies

    E-Print Network [OSTI]

    Wang, Chunhua

    2011-01-01

    the manufacturing of solar cells and photovoltaic arrays hasfor providing us Photovoltaic cells, lumines- cent materialsthe currently available photovoltaic cells. The property of

  9. 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.

    2002-01-01

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

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

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

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

  11. Tariffs Can Be Structured to Encourage Photovoltaic Energy

    E-Print Network [OSTI]

    Wiser, Ryan

    2009-01-01

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

  12. Effects of solar photovoltaic panels on roof heat transfer

    E-Print Network [OSTI]

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

    2011-01-01

    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 

  13. Fabrication and Characterization of Organic/Inorganic Photovoltaic Devices

    E-Print Network [OSTI]

    Guvenc, Ali Bilge

    2012-01-01

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

  14. Electronic structure and photovoltaic application of BiI3

    E-Print Network [OSTI]

    2015-01-01

    Electronic structure and photovoltaic application of BiI 3Electronic structure and photovoltaic application of BiI 3recent improvement in photovoltaic efficiency in hybrid lead

  15. Hybrid solar collector using nonimaging optics and photovoltaic components

    E-Print Network [OSTI]

    2015-01-01

    Evaluation of On-Board Photovoltaic Modules Options forthe Temperature Dependence of Photovoltaic Module ElectricalChow, T. T. , "A review on photovoltaic/thermal hybrid solar

  16. Aerosol Spray Pyrolysis Synthesis of CZTS Nanostructures for Photovoltaic Applications

    E-Print Network [OSTI]

    Exarhos, Stephen

    2015-01-01

    Eventually a full photovoltaic cell can be constructed based20.8%. ” 29th European Photovoltaic Solar Energy ConferenceFilms, Thin Film Chalogenide Photovoltaic Materials (EMRS,

  17. Efficient yet Accurate Models for Photovoltaic Modules with Shading Effects

    E-Print Network [OSTI]

    Tu, Tianheng

    2014-01-01

    Jiang, “Partial shading modeling of photovoltaic system withModels for Photovoltaic Modules with Shading Effects AModels for Photovoltaic Modules with Shading Effects by

  18. Femtosecond laser processing of photovoltaic and transparent materials

    E-Print Network [OSTI]

    Ahn, Sanghoon

    2013-01-01

    at  300  K.  Progress   in  Photovoltaics.  1995;3:189-­?A   review.   Progress   in   Photovoltaics.  2006;14:107-­?efficiency.  Progress  in  Photovoltaics.  2004;12:553-­?

  19. The Development of Semiconducting Materials for Organic Photovoltaics

    E-Print Network [OSTI]

    Douglas, Jessica D.

    2013-01-01

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

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

    E-Print Network [OSTI]

    Mukamel, S

    2013-01-01

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

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

    E-Print Network [OSTI]

    Kavulak, David Fredric Joel

    2010-01-01

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

  2. Nonlinear Predictive Energy Management of Residential Buildings with Photovoltaics & Batteries

    E-Print Network [OSTI]

    Sun, Chao; Sun, Fengchun; Moura, Scott J

    2015-01-01

    of Residential Buildings with Photovoltaics & Batteries Chaobuildings equipped with photovoltaics and bat- teries (RBPB)In these systems the photovoltaics (PVs) operate as a local

  3. Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics

    E-Print Network [OSTI]

    Padilla, Derek

    2013-01-01

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

  4. Optical Design Considerations for High Conversion Efficiency in Photovoltaics

    E-Print Network [OSTI]

    Ganapati, Vidya

    2015-01-01

    for light trapping in photovoltaics: the supercell concept”,efficiency tables”, Progress in Photovoltaics: Research andphotovoltaic cells”, Progress in Photovoltaics: Research and

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

    E-Print Network [OSTI]

    Okawa, David

    2010-01-01

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

  6. Soiling losses for solar photovoltaic systems in California

    E-Print Network [OSTI]

    Mejia, Felipe A; Kleissl, Jan

    2013-01-01

    Large Grid-Connected Photovoltaic Systems in California andin design of photovoltaic systems. In: Markvart T. andA thermal model for photovoltaic systems. Solar Energy 2001;

  7. Nonlinear Predictive Energy Management of Residential Buildings with Photovoltaics & Batteries

    E-Print Network [OSTI]

    Sun, Chao; Sun, Fengchun; Moura, Scott J

    2015-01-01

    for grid-connected photovoltaic systems,” IEEE Transactionswith a rooftop photovoltaic (PV) system and second-lifeconnected, photovoltaic- battery storage systems,” Renewable

  8. Photovoltaic cell assembly

    DOE Patents [OSTI]

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

    1990-01-01

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

  9. Photovoltaic solar cell

    DOE Patents [OSTI]

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

    2015-09-08

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

  10. Photovoltaic solar concentrator

    DOE Patents [OSTI]

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

    2012-12-11

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

  11. 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)

    2012-04-17

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

  12. Photovoltaic module mounting system

    SciTech Connect (OSTI)

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

    2012-09-18

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

  13. Rooftop Photovoltaics Market Penetration Scenarios

    SciTech Connect (OSTI)

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

    2008-02-01

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

  14. SAM Photovoltaic Model Technical Reference

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

    SAM Photovoltaic Model Technical Reference P. Gilman National Renewable Energy Laboratory Technical Report NRELTP-6A20-64102 May 2015 NREL is a national laboratory of the U.S....

  15. Denver International Airport Photovoltaic System

    Broader source: Energy.gov [DOE]

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

  16. Reducing recombination in organic photovoltaics

    E-Print Network [OSTI]

    Sussman, Jason M. (Jason Michael)

    2011-01-01

    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 ...

  17. 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...

  18. 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. ...

  19. 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 ...

  20. Biomass One Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:Pontiac Biomass Facility Jump to:Biola,Biomass Facility Jump to:

  1. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY to treatment prescriptions and anticipated outputs of sawlogs and biomass fuel? How many individual operations biomass fuel removed. Typically in plantations. 50% No harvest treatment

  2. Module Handbook Specialisation Biomass Energy

    E-Print Network [OSTI]

    Damm, Werner

    Module Handbook Specialisation Biomass Energy 2nd Semester for the Master Programme REMA/EUREC Course 2008/2009 University of Zaragoza Specialisation Provider: Biomass Energy #12;Specialisation Biomass Energy, University of Zaragoza Modul: Introduction and Basic Concepts

  3. Solid State Photovoltaic Research Branch

    SciTech Connect (OSTI)

    Not Available

    1990-09-01

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

  4. Biomass Research Program

    ScienceCinema (OSTI)

    Kenney, Kevin; Wright, Christopher; Shelton-Davis, Colleen

    2013-05-28

    INL's mission is to achieve DOE's vision of supplying high-quality raw biomass; preprocessing biomass into advanced bioenergy feedstocks; and delivering bioenergy commodities to biorefineries. You can learn more about research like this at the lab's facebook site http://www.facebook.com/idahonationallaboratory.

  5. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY Citation: USDA Forest Service, Pacific Southwest Research Station. 2009. Biomass to Energy: Forest

  6. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY study. The Biomass to Energy (B2E) Project is exploring the ecological and economic consequences

  7. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY and continuously between the earth's biomass and atmosphere. From a greenhouse gas perspective, forest treatments

  8. Investigating and Using Biomass Gases

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

    Investigating and Using Biomass Gases Grades: 9-12 Topic: Biomass Authors: Eric Benson and Melissa Highfill Owner: National Renewable Energy Laboratory This educational material is...

  9. Photovoltaic array mounting apparatus, systems, and methods

    DOE Patents [OSTI]

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

    2015-04-14

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

  10. Tariffs Can Be Structured to Encourage Photovoltaic Energy

    E-Print Network [OSTI]

    Wiser, Ryan

    2009-01-01

    Economics of Commercial Photovoltaic Systems in California,of customer-sited photovoltaic (PV) systems. Though these

  11. Effects of solar photovoltaic panels on roof heat transfer

    E-Print Network [OSTI]

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

    2011-01-01

    thermal model for photovoltaic systems, Solar Energy, Vol.  benefits of rooftop photovoltaic (PV) systems for building 

  12. WP 3 Report: Biomass Potentials Biomass production potentials

    E-Print Network [OSTI]

    WP 3 Report: Biomass Potentials 1 Biomass production potentials in Central and Eastern Europe under different scenarios Final report of WP3 of the VIEWLS project, funded by DG-Tren #12;WP 3 Report: Biomass Potentials 2 Report Biomass production potentials in central and Eastern Europe under different scenarios

  13. Photovoltaic Incentive Design Handbook

    SciTech Connect (OSTI)

    Hoff, T. E.

    2006-12-01

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

  14. Mapping Biomass Distribution Potential

    E-Print Network [OSTI]

    Schaetzel, Michael

    2010-11-18

    stream_size 1487 stream_content_type text/plain stream_name ku_gis_day_2010_schaetzel.pdf.txt stream_source_info ku_gis_day_2010_schaetzel.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8 Mapping Biomass... Distribution Potential Michael Schaetzel Undergraduate ? Environmental Studies ? University of Kansas L O C A T S I O N BIOMASS ENERGY POTENTIAL o According to DOE, Biomass has the potential to provide 14% of the nation’s power o Currently 1% of...

  15. Biomass | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:Pontiac Biomass Facility Jump to:Biola,BiomassBiomass Jump to:

  16. Australian Centre for Advanced Photovoltaics Australia-US Institute for Advanced Photovoltaics

    E-Print Network [OSTI]

    New South Wales, University of

    Australian Centre for Advanced Photovoltaics Australia-US Institute for Advanced Photovoltaics Annual Report 2014 Engineering Photovoltaic and Renewable Energy EngineeringNever Stand Still Stanford University #12;AustralianCentreforAdvancedPhotovoltaics-AnnualReport2014 Table of Contents 1. Director

  17. 282 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 5, NO. 1, JANUARY 2015 Photovoltaic Material Characterization With Steady

    E-Print Network [OSTI]

    Javey, Ali

    282 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 5, NO. 1, JANUARY 2015 Photovoltaic Material an approach to characterize the surface and bulk properties for thin films of photovoltaic mate- rials- toluminescence (PL), photovoltaic cells. I. INTRODUCTION VARIOUS characterization techniques based on photolu

  18. Biomass Boiler and Furnace Emissions and Safety Regulations in...

    Open Energy Info (EERE)

    Energy Focus Area: Biomass, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Biofuels, Economic Development Phase: Determine Baseline, Evaluate Options,...

  19. Process Development for Nanostructured Photovoltaics

    SciTech Connect (OSTI)

    Elam, Jeffrey W.

    2015-01-01

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

  20. 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)

    1991-06-11

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

  1. Amorphous Silicon-Carbon Nanostructure Photovoltaic Devices

    E-Print Network [OSTI]

    Schriver, Maria Christine

    2012-01-01

    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. . . . . . . . . . . . . . . . . .

  2. Mounting support for a photovoltaic module

    DOE Patents [OSTI]

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

    2013-03-26

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

  3. Plug-and-Play Photovoltaics Funding Opportunity

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  4. Photovoltaic cell efficiency at elevated temperatures

    E-Print Network [OSTI]

    Ray, Katherine Leung

    2010-01-01

    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 ...

  5. Photovoltaic product directory and buyers guide

    SciTech Connect (OSTI)

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

    1981-06-01

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

  6. ULTRA BARRIER TOPSHEET (UBT) FOR FLEXIBLE PHOTOVOLTAICS

    SciTech Connect (OSTI)

    DeScioli, Derek

    2013-06-01

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

  7. BIOMASS ACTION PLAN FOR SCOTLAND

    E-Print Network [OSTI]

    BIOMASS ACTION PLAN FOR SCOTLAND #12; #12;© Crown copyright 2007 ISBN: 978 0 7559 6506 9 Scottish% recyclable. #12;A BIOMASS ACTION PLAN FOR SCOTLAND #12;#12;1 CONTENTS FOREWORD 3 1. EXECUTIVE SUMMARY 5 2. INTRODUCTION 9 3. WIDER CONTEXT 13 4. SCOTLAND'S ROLE IN THE UK BIOMASS STRATEGY 17 5. BIOMASS HEATING 23 6

  8. Feedstock System to Deliver Biomass

    E-Print Network [OSTI]

    Lin, Xi

    Feedstock System to Deliver Biomass Into a Solid Oxide Membrane Electrolyzer Chloë Cullen | Teresa with steam and biomass as inputs. Professor Goldfarb is seeking to control the rate of biomass: The Solution: The Problem: Currently, Professor Goldfarb's lab technicians can only feed about 10 mL of biomass

  9. The ultimate biomass refinery

    SciTech Connect (OSTI)

    Bungay, H.R. )

    1988-01-01

    Bits and pieces of refining schemes and both old and new technology have been integrated into a complete biomass harvesting, processing, waste recycle, and marketing complex. These choices are justified with economic estimates and technology assessments.

  10. Biomass Energy Production Incentive

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 2007 South Carolina enacted the Energy Freedom and Rural Development Act, which provides production incentives for certain biomass-energy facilities. Eligible systems earn $0.01 per kilowatt-h...

  11. Countercurrent Saccharification of Biomass 

    E-Print Network [OSTI]

    Derner, John David

    2015-04-21

    Our goal was to research and implement a countercurrent system to run enzymatic saccharification of biomass. The project provided clear results to show that this method is more efficient than the batch process that companies currently employ. Excess...

  12. DOE 2014 Biomass Conference

    Office of Energy Efficiency and Renewable Energy (EERE)

    Breakout Session 1C—Fostering Technology Adoption I: Building the Market for Renewables with High Octane Fuels DOE 2014 Biomass Conference Jim Williams, Senior Manager, American Petroleum Institute

  13. Biomass Basics Webinar

    Broader source: Energy.gov [DOE]

    The Bioenergy Technologies Office (BETO) is hosting a Biomass Basics Webinar on August 27, 2015, from 4:00-4:40pm EDT. This webinar will provide high school students and teachers with background...

  14. Biomass cogeneration. A business assessment

    SciTech Connect (OSTI)

    Skelton, J.C.

    1981-11-01

    This guide serves as an overview of the biomass cogeneration area and provides direction for more detailed analysis. The business assessment is based in part on discussions with key officials from firms that have adopted biomass cogeneration systems and from organizations such as utilities, state and federal agencies, and banks that would be directly involved in a biomass cogeneration project. The guide is organized into five chapters: biomass cogeneration systems, biomass cogeneration business considerations, biomass cogeneration economics, biomass cogeneration project planning, and case studies.

  15. 2007 Biomass Program Overview

    SciTech Connect (OSTI)

    none,

    2009-10-27

    The Biomass Program is actively working with public and private partners to meet production and technology needs. With the corn ethanol market growing steadily, researchers are unlocking the potential of non-food biomass sources, such as switchgrass and forest and agricultural residues. In this way, the Program is helping to ensure that cost-effective technologies will be ready to support production goals for advanced biofuels.

  16. Biomass 2014 Poster Session

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy’s Bioenergy Technologies Office (BETO) invites students, researchers, public and private organizations, and members of the general public to submit poster abstracts for consideration for the annual Biomass Conference Poster Session. The Biomass 2014 conference theme focuses on topics that are advancing the growth of the bioeconomy, such as improvements in feedstock logistics; promising, innovative pathways for advanced biofuels; and market-enabling co-products.

  17. LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERING UNIT (PEU)

    E-Print Network [OSTI]

    Figueroa, Carlos

    2012-01-01

    LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERINGLBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERINGLBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERING

  18. Northeast Regional Biomass Program

    SciTech Connect (OSTI)

    Lusk, P.D.

    1992-12-01

    The Northeast Regional Biomass Program has been in operation for a period of nine years. During this time, state managed programs and technical programs have been conducted covering a wide range of activities primarily aim at the use and applications of wood as a fuel. These activities include: assessments of available biomass resources; surveys to determine what industries, businesses, institutions, and utility companies use wood and wood waste for fuel; and workshops, seminars, and demonstrations to provide technical assistance. In the Northeast, an estimated 6.2 million tons of wood are used in the commercial and industrial sector, where 12.5 million cords are used for residential heating annually. Of this useage, 1504.7 mw of power has been generated from biomass. The use of wood energy products has had substantial employment and income benefits in the region. Although wood and woodwaste have received primary emphasis in the regional program, the use of municipal solid waste has received increased emphasis as an energy source. The energy contribution of biomass will increase as potentia users become more familiar with existing feedstocks, technologies, and applications. The Northeast Regional Biomass Program is designed to support region-specific to overcome near-term barriers to biomass energy use.

  19. Interband Cascade Photovoltaic Cells

    SciTech Connect (OSTI)

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

    2014-09-24

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

  20. Photovoltaic Subcontract Program, FY 1991

    SciTech Connect (OSTI)

    Not Available

    1992-03-01

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

  1. 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

  2. High Concentrated Photovoltaic (CPV) Masafumi Yamaguchi

    E-Print Network [OSTI]

    Canet, Léonie

    High Concentrated Photovoltaic (CPV) Masafumi Yamaguchi Toyota Technological Institute, Nagoya, 468,, other partners #12;Outline 1. Importance of High Performance, Low Cost and Highly Reliable Photovoltaics on Concentrator Photovoltaics (CPV) ; NG-CPV 4. Future Prospects of PV and Summary #12;1. Importance of High

  3. Mirror-Augmented Photovoltaic Designs and Performance

    E-Print Network [OSTI]

    Rollins, Andrew M.

    Mirror-Augmented Photovoltaic Designs and Performance Wei-Chun Lin, Dave Hollingshead, Kara A-In developing photovoltaic (PV) technology, it is crucial to provide lower cost PV power. One of the useful-tracked) mirror-augmented photovoltaic (MAPV) system. A series of MATLAB calculations were developed to screen

  4. 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

  5. ROBOTIC DEVICE FOR CLEANING PHOTOVOLTAIC PANEL ARRAYS

    E-Print Network [OSTI]

    Mavroidis, Constantinos

    1 ROBOTIC DEVICE FOR CLEANING PHOTOVOLTAIC PANEL ARRAYS MARK ANDERSON, ASHTON GRANDY, JEREMY HASTIE. The main method for harnessing solar power is with arrays made up of photovoltaic (PV) panels. Accumulation-based cleaning methods for photovoltaic arrays are costly in time, water and energy usage and lack automation

  6. International photovoltaic products and manufacturers directory, 1995

    SciTech Connect (OSTI)

    Shepperd, L.W.

    1995-11-01

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

  7. EELE408 Photovoltaics Lecture 23: Summary

    E-Print Network [OSTI]

    Kaiser, Todd J.

    1 EELE408 Photovoltaics Lecture 23: Summary Dr. Todd J. Kaiser tjkaiser@ece.montana.edu Department the circuit delivering power to the load Photovoltaic Effect Voltage Separation of holes and electrons p 5-6% Resistance 14-23% LLNL Energy Chart 6 #12;2 Energy Demand Predictions 7 Photovoltaic Myths 8

  8. 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

  9. Ryne P. Raffaelle National Center for Photovoltaics

    E-Print Network [OSTI]

    Ryne P. Raffaelle National Center for Photovoltaics National Renewable Energy Laboratory DOING&D Partnerships #12;National Center for Photovoltaics The National Center for Photovoltaics (NCPV) focuses generations to meet their own needs. ­ UN Bruntland Commission Our Focus: Making PV More Sustainable

  10. 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

  11. 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

  12. Photovoltaic cell and production thereof

    DOE Patents [OSTI]

    Narayanan, Srinivasamohan (Gaithersburg, MD); Kumar, Bikash (Bangalore, IN)

    2008-07-22

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

  13. Aternating current photovoltaic building block

    DOE Patents [OSTI]

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

    2004-06-15

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

  14. Recycling Of Cis Photovoltaic Waste

    DOE Patents [OSTI]

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

    1998-07-14

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

  15. Nanostructured Photovoltaics: - 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolar Photovoltaic Solar Photovoltaic Find More Like This Return to Search

  16. Nanocrystal Photovoltaics: The Case of Cu2S-CdS

    E-Print Network [OSTI]

    Rivest, Jessica Louis Baker

    2011-01-01

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

  17. Rapid screening buffer layers in photovoltaics

    DOE Patents [OSTI]

    List, III, Frederick Alyious; Tuncer, Enis

    2014-09-09

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

  18. Improved photovoltaic cells and electrodes

    DOE Patents [OSTI]

    Skotheim, T.A.

    1983-06-29

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

  19. Electrochemical photovoltaic cells and electrodes

    DOE Patents [OSTI]

    Skotheim, Terje A. (East Patchogue, NY)

    1984-01-01

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

  20. SAM Photovoltaic Model Technical Reference

    SciTech Connect (OSTI)

    Gilman, P.

    2015-05-27

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

  1. Breakthrough: micro-electronic photovoltaics

    ScienceCinema (OSTI)

    Okandan, Murat; Gupta, Vipin

    2014-06-23

    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.

  2. 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)

    1984-01-01

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

  3. Photovoltaic Subcontract Program, FY 1990

    SciTech Connect (OSTI)

    Summers, K.A.

    1991-03-01

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

  4. Breakthrough: micro-electronic photovoltaics

    SciTech Connect (OSTI)

    Okandan, Murat; Gupta, Vipin

    2012-04-23

    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. NREL Photovoltaic Program FY 1993

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

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

  6. Tracy Biomass Biomass Facility | 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| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergy FacilitiesInformationTown700testing inBiomass

  7. NREL: Biomass Research - Biomass Characterization Capabilities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact:News Releases |NRELBiochemical ConversionBiomass

  8. Biomass Cookstoves Technical Meeting: Summary Report | Department...

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

    Biomass Cookstoves Technical Meeting: Summary Report Biomass Cookstoves Technical Meeting: Summary Report In regions where biomass is a traditional fuel for cooking, improved...

  9. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Figure 1: West Biofuels Biomass Gasification to Power 1: West Biofuels Biomass Gasification to Power Process unlikely  that  a  biomass  gasification  power  plant 

  10. Tribal Renewable Energy Curriculum Foundational Course: Biomass...

    Office of Environmental Management (EM)

    Biomass Tribal Renewable Energy Curriculum Foundational Course: Biomass Watch the U.S. Department of Energy Office of Indian Energy foundational course webinar on biomass renewable...

  11. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Figure 1: West Biofuels Biomass Gasification to Power involved  in  gasification  of  biomass  to  produce  fuel 1: West Biofuels Biomass Gasification to Power Process 

  12. Biomass Boiler for Food Processing Applications | Department...

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

    Biomass Boiler for Food Processing Applications Biomass Boiler for Food Processing Applications Biomass Boiler Uses a Combination of Wood Waste and Tire-Derived Fuel In 2011, the...

  13. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Biofuels, LLC  UCSD Biomass to Power  Economic Feasibility Figure 1: West Biofuels Biomass Gasification to Power rates..……………………. ……31  UCSD Biomass to Power ? Feasibility 

  14. Kiefer Landfill Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    Kiefer Landfill Biomass Facility Jump to: navigation, search Name Kiefer Landfill Biomass Facility Facility Kiefer Landfill Sector Biomass Facility Type Landfill Gas Location...

  15. Bio Gas Technologies LTd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)DaddyInformationSystemsGas

  16. Northeast Regional Biomass Program

    SciTech Connect (OSTI)

    O'Connell, R.A.

    1991-11-01

    The management structure and program objectives for the Northeast Regional Biomass Program (NRBP) remain unchanged from previous years. Additional funding was provided by the Bonneville Power Administration Regional Biomass Program to continue the publication of articles in the Biologue. The Western Area Power Administration and the Council of Great Lakes Governors funded the project Characterization of Emissions from Burning Woodwaste''. A grant for the ninth year was received from DOE. The Northeast Regional Biomass Steering Committee selected the following four projects for funding for the next fiscal year. (1) Wood Waste Utilization Conference, (2) Performance Evaluation of Wood Systems in Commercial Facilities, (3) Wood Energy Market Utilization Training, (4) Update of the Facility Directory.

  17. YEAR 2 BIOMASS UTILIZATION

    SciTech Connect (OSTI)

    Christopher J. Zygarlicke

    2004-11-01

    This Energy & Environmental Research Center (EERC) Year 2 Biomass Utilization Final Technical Report summarizes multiple projects in biopower or bioenergy, transportation biofuels, and bioproducts. A prototype of a novel advanced power system, termed the high-temperature air furnace (HITAF), was tested for performance while converting biomass and coal blends to energy. Three biomass fuels--wood residue or hog fuel, corn stover, and switchgrass--and Wyoming subbituminous coal were acquired for combustion tests in the 3-million-Btu/hr system. Blend levels were 20% biomass--80% coal on a heat basis. Hog fuel was prepared for the upcoming combustion test by air-drying and processing through a hammer mill and screen. A K-Tron biomass feeder capable of operating in both gravimetric and volumetric modes was selected as the HITAF feed system. Two oxide dispersion-strengthened (ODS) alloys that would be used in the HITAF high-temperature heat exchanger were tested for slag corrosion rates. An alumina layer formed on one particular alloy, which was more corrosion-resistant than a chromia layer that formed on the other alloy. Research activities were completed in the development of an atmospheric pressure, fluidized-bed pyrolysis-type system called the controlled spontaneous reactor (CSR), which is used to process and condition biomass. Tree trimmings were physically and chemically altered by the CSR process, resulting in a fuel that was very suitable for feeding into a coal combustion or gasification system with little or no feed system modifications required. Experimental procedures were successful for producing hydrogen from biomass using the bacteria Thermotoga, a deep-ocean thermal vent organism. Analytical procedures for hydrogen were evaluated, a gas chromatography (GC) method was derived for measuring hydrogen yields, and adaptation culturing and protocols for mutagenesis were initiated to better develop strains that can use biomass cellulose. Fly ash derived from cofiring coal with waste paper, sunflower hulls, and wood waste showed a broad spectrum of chemical and physical characteristics, according to American Society for Testing and Materials (ASTM) C618 procedures. Higher-than-normal levels of magnesium, sodium, and potassium oxide were observed for the biomass-coal fly ash, which may impact utilization in cement replacement in concrete under ASTM requirements. Other niche markets for biomass-derived fly ash were explored. Research was conducted to develop/optimize a catalytic partial oxidation-based concept for a simple, low-cost fuel processor (reformer). Work progressed to evaluate the effects of temperature and denaturant on ethanol catalytic partial oxidation. A catalyst was isolated that had a yield of 24 mole percent, with catalyst coking limited to less than 15% over a period of 2 hours. In biodiesel research, conversion of vegetable oils to biodiesel using an alternative alkaline catalyst was demonstrated without the need for subsequent water washing. In work related to biorefinery technologies, a continuous-flow reactor was used to react ethanol with lactic acid prepared from an ammonium lactate concentrate produced in fermentations conducted at the EERC. Good yields of ester were obtained even though the concentration of lactic acid in the feed was low with respect to the amount of water present. Esterification gave lower yields of ester, owing to the lowered lactic acid content of the feed. All lactic acid fermentation from amylose hydrolysate test trials was completed. Management activities included a decision to extend several projects to December 31, 2003, because of delays in receiving biomass feedstocks for testing and acquisition of commercial matching funds. In strategic studies, methods for producing acetate esters for high-value fibers, fuel additives, solvents, and chemical intermediates were discussed with several commercial entities. Commercial industries have an interest in efficient biomass gasification designs but are waiting for economic incentives. Utility, biorefinery, pulp and paper, or o

  18. Minimally refined biomass fuel

    DOE Patents [OSTI]

    Pearson, Richard K. (Pleasanton, CA); Hirschfeld, Tomas B. (Livermore, CA)

    1984-01-01

    A minimally refined fluid composition, suitable as a fuel mixture and derived from biomass material, is comprised of one or more water-soluble carbohydrates such as sucrose, one or more alcohols having less than four carbons, and water. The carbohydrate provides the fuel source; water solubilizes the carbohydrates; and the alcohol aids in the combustion of the carbohydrate and reduces the vicosity of the carbohydrate/water solution. Because less energy is required to obtain the carbohydrate from the raw biomass than alcohol, an overall energy savings is realized compared to fuels employing alcohol as the primary fuel.

  19. Photovoltaic power generation system free of bypass diodes

    DOE Patents [OSTI]

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

    2015-07-28

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

  20. Burgeoning Biomass: Creating Efficient and Sustainable Forest Biomass Supply Chains in the Rockies

    E-Print Network [OSTI]

    1 Burgeoning Biomass: Creating Efficient and Sustainable Forest Biomass Supply Chains and removing beetle- killed trees, produce a byproduct called woody biomass. Also known as "slash, woody biomass can be collected, processed and transported SUMMARY Woody biomass could be used

  1. Biomass Feedstock National User Facility

    Office of Energy Efficiency and Renewable Energy (EERE)

    Breakout Session 1B—Integration of Supply Chains I: Breaking Down Barriers Biomass Feedstock National User Facility Kevin L. Kenney, Director, Biomass Feedstock National User Facility, Idaho National Laboratory

  2. Synfuels from biomass grow slowly

    SciTech Connect (OSTI)

    Black, J.; Wedlock, J.C.

    1982-01-01

    Current developments in the manufacture of synfuels are discussed with emphasis on the sources of biomass suitable for synfuels production, processes for converting biomass to synfuels, and the economics of the technology. The sources include wood, nonwood crops, root crops, aquatic biomass, and oils from plants such as soybean, safflower, and peanut. The biomass conversion processes discussed include pyrolysis, gasification, liquefaction, and aerobic and anaerobic digestion.

  3. Biomass Scenario Model

    SciTech Connect (OSTI)

    2015-09-01

    The Biomass Scenario Model (BSM) is a unique, carefully validated, state-of-the-art dynamic model of the domestic biofuels supply chain which explicitly focuses on policy issues, their feasibility, and potential side effects. It integrates resource availability, physical/technological/economic constraints, behavior, and policy. The model uses a system dynamics simulation (not optimization) to model dynamic interactions across the supply chain.

  4. U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry

    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 RankADVANCEDInstallers/ContractorsPhotovoltaicsStateof Energy| Department ofAttacks2 DOE HydrogenBiomass

  5. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;6-2 #12;APPENDIX 6: Cumulative Watershed Effects Analysis for the Biomass to Energy Project 1. Principal the findings or recommendations of the study. Cumulative watershed effects (CWE) of the Biomass to Energy (B2E

  6. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY not substantively affect the findings or recommendations of the study. 2. Introduction The Biomass to Energy (B2E) Project is developing a comprehensive forest biomass-to- electricity model to identify and analyze

  7. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;12-2 #12;Appendix 12: Biomass to Energy Project Team, Committee Members and Project Advisors Research Team. Nechodom's background is in biomass energy policy development and public policy research. Peter Stine

  8. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY or recommendations of the study. 1. INTRODUCTION 1.1 Domain Description The study area for the Biomass to Energy (B2 and environmental costs and benefits of using forest biomass to generate electrical power while changing fire

  9. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY as a result of emerging biomass opportunities on private industrial and public multiple-use lands (tracked in the vegetation domain) and the quantity of biomass consumed by the wildfire (tracked

  10. 7, 1733917366, 2007 Biomass burning

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA wet season experiment C. H. Mari a Creative Commons License. Atmospheric Chemistry and Physics Discussions Tracing biomass burning plumes from. Mari (marc@aero.obs-mip.fr) 17339 #12;ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA

  11. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;5-2 #12;APPENDIX 5: BIOMASS TO ENERGY PROJECT:WILDLIFE HABITAT EVALUATION 1. Authors: Patricia Manley Ross management scenarios. We evaluated the potential effects of biomass removal scenarios on biological diversity

  12. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;10-2 #12;Appendix 10: Power Plant Analysis for Conversion of Forest Remediation Biomass to Renewable Fuels and Electricity 1. Report to the Biomass to Energy Project (B2E) Principal Authors: Dennis Schuetzle, TSS

  13. Biomass Energy Crops: Massachusetts' Potential

    E-Print Network [OSTI]

    Schweik, Charles M.

    plant fuel. We examine potential biomass energy demand in the 5-county area, and then review cropBiomass Energy Crops: Massachusetts' Potential Prepared for: Massachusetts Division of Energy is thought to have significantly more potential than forest biomass energy (Perlack, Wright et al. 2005). One

  14. 13, 3226932289, 2013 Biomass burning

    E-Print Network [OSTI]

    Dong, Xiquan

    ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern Great Plains T (ACP). Please refer to the corresponding final paper in ACP if available. Biomass burning aerosol Geosciences Union. 32269 #12;ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern

  15. Reburn system with feedlot biomass

    DOE Patents [OSTI]

    Annamalai, Kalyan; Sweeten, John M.

    2005-12-13

    The present invention pertains to the use of feedlot biomass as reburn fuel matter to reduce NO.sub.x emissions. According to one embodiment of the invention, feedlot biomass is used as the reburn fuel to reduce NO.sub.x. The invention also includes burners and boiler in which feedlot biomass serves a reburn fuel.

  16. FY12 Biomass Program Congressional Budget Request

    SciTech Connect (OSTI)

    none,

    2011-02-01

    FY12 budget and funding for the Biomass Program biomass and biorefinery systems research development and deployment.

  17. 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)

    2001-01-01

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

  18. US photovoltaic patents: 1991--1993

    SciTech Connect (OSTI)

    Pohle, L

    1995-03-01

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

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

    E-Print Network [OSTI]

    Hoen, Ben

    2012-01-01

    PHOTOVOLTAIC ENERGY SYSTEMS AFFECT RESIDENTIAL SELLING PRICES?PHOTOVOLTAIC ENERGY SYSTEMS AFFECT RESIDENTIAL SELLING PRICES?

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

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01

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

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

    E-Print Network [OSTI]

    Zhang, Teresa Weirui

    2011-01-01

    installed power from photovoltaic systems worldwide fromphotovoltaic systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .times than bulk Si photovoltaic systems. . . Comparison of

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

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01

    J. Nozik, “Third Generation Photovoltaics based on Multiple8].Applications in third generation photovoltaics have the

  3. Decentalized solar photovoltaic energy systems

    SciTech Connect (OSTI)

    Krupka, M. C.

    1980-09-01

    Environmental data for decentralized solar photovoltaic systems have been generated in support of the Technology Assessment of Solar Energy Systems program (TASE). Emphasis has been placed upon the selection and use of a model residential photovoltaic system to develop and quantify the necessary data. The model consists of a reference home located in Phoenix, AZ, utilizing a unique solar cell array-roof shingle combination. Silicon solar cells, rated at 13.5% efficiency at 28/sup 0/C and 100 mW/cm/sup 2/ (AMI) insolation are used to generate approx. 10 kW (peak). An all-electric home is considered with lead-acid battery storage, dc-ac inversion and utility backup. The reference home is compared to others in regions of different insolation. Major material requirements, scaled to quad levels of end-use energy include significant quantities of silicon, copper, lead, antimony, sulfuric acid and plastics. Operating residuals generated are negligible with the exception of those from the storage battery due to a short (10-year) lifetime. A brief general discussion of other environmental, health, and safety and resource availability impacts is presented. It is suggested that solar cell materials production and fabrication may have the major environmental impact when comparing all facets of photovoltaic system usage. Fabrication of the various types of solar cell systems involves the need, handling, and transportation of many toxic and hazardous chemicals with attendant health and safety impacts. Increases in production of such materials as lead, antimony, sulfuric acid, copper, plastics, cadmium and gallium will be required should large scale usage of photovoltaic systems be implemented.

  4. Ligitek Photovoltaic | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill,Photovoltaic Jump to: navigation, search

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

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

    E-Print Network [OSTI]

    Wu, Yue

    2008-01-01

    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-

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

    E-Print Network [OSTI]

    Wu, Yue

    2008-01-01

    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-

  9. 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

  10. Solution-processed photovoltaics with advanced characterization and analysis

    E-Print Network [OSTI]

    Duan, Hsin-Sheng

    2014-01-01

    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,

  11. Fall 2013 Course Announcement EEE 598 ADVANCED PHOTOVOLTAICS

    E-Print Network [OSTI]

    Zhang, Junshan

    Fall 2013 Course Announcement EEE 598 ADVANCED PHOTOVOLTAICS Professor Meng Tao (meng a role will photovoltaics play in this new energy infrastructure? There are fundamental bottlenecks for current photovoltaic technologies to become a noticeable source of energy: material availability, energy

  12. Aalborg Universitet Analysis and Modeling of Transformerless Photovoltaic Inverter Systems

    E-Print Network [OSTI]

    Kerekes, Tamas

    Aalborg Universitet Analysis and Modeling of Transformerless Photovoltaic Inverter Systems Kerekes and Modeling of Transformerless Photovoltaic Inverter Systems. Aalborg Universitet: Institut for Energiteknik from vbn.aau.dk on: juli 05, 2015 #12;Analysis and Modeling of Transformerless Photovoltaic Inverter

  13. 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

  14. 350 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 5, NO. 1, JANUARY 2015 Optimal Dispatch of Residential Photovoltaic

    E-Print Network [OSTI]

    Giannakis, Georgios

    350 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 5, NO. 1, JANUARY 2015 Optimal Dispatch of Residential Photovoltaic Inverters Under Forecasting Uncertainties Emiliano Dall'Anese, Member, IEEE, Sairaj V. Dhople--Efforts to ensure reliable operation of existing low- voltage distribution systems with high photovoltaic (PV

  15. 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

  16. Multiband semiconductor compositions for photovoltaic devices...

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

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

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

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

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

  18. Multiband semiconductor compositions for photovoltaic devices...

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

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

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

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

    Solar Photovoltaic Specification, Checklist and Guide, from the U.S. Environmental Protection Agency. rerhsolarelectricguide.pdf More Documents & Publications Solar Water...

  20. PROJECT PROFILE: Photovoltaic Stakeholder Engagement Initiatives

    Broader source: Energy.gov [DOE]

    This project is focused on independent stakeholder engagement activities conducted by Sandia National Laboratory relating to photovoltaic (PV) outreach at the national and international level.

  1. Hudson Light & Power- Photovoltaic Incentive Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Hudson Light & Power Department, the municipal utility for the Town of Hudson, offers a limited number of solar photovoltaic (PV) rebates for residential, commercial, industrial, and municipal...

  2. Solar photovoltaic reflective trough collection structure

    DOE Patents [OSTI]

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

    2015-11-19

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

  3. Mesa Top Photovoltaic Array (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-07-01

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

  4. 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.

  5. SERC Photovoltaics for Residential Buildings Webinar Transcript

    Broader source: Energy.gov [DOE]

    A presentation sponsored by the U.S. Department of Energy about using solar photovoltaics (PV) systems to provide electricity for homes.

  6. Clean fractionation of biomass

    SciTech Connect (OSTI)

    Not Available

    1995-01-01

    The US Department of Energy (DOE) Alternative Feedstocks (AF) program is forging new links between the agricultural community and the chemicals industry through support of research and development (R & D) that uses `green` feedstocks to produce chemicals. The program promotes cost-effective industrial use of renewable biomass as feedstocks to manufacture high-volume chemical building blocks. Industrial commercialization of such processes would stimulate the agricultural sector by increasing the demand of agricultural and forestry commodities. New alternatives for American industry may lie in the nation`s forests and fields. The AF program is conducting ongoing research on a clean fractionation process. This project is designed to convert biomass into materials that can be used for chemical processes and products. Clean fractionation separates a single feedstock into individual components cellulose, hemicellulose, and lignin.

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

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

    FEMP Offers New Training on Photovoltaic Operations and Maintenance Best Practices FEMP Offers New Training on Photovoltaic Operations and Maintenance Best Practices November 4,...

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

    Office of Environmental Management (EM)

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

  9. EA-1827: Suniva, Inc.'s ARTisun Photovoltaic Manufacturing Project...

    Office of Environmental Management (EM)

    7: Suniva, Inc.'s ARTisun Photovoltaic Manufacturing Project in Saginaw, MI EA-1827: Suniva, Inc.'s ARTisun Photovoltaic Manufacturing Project in Saginaw, MI February 1, 2010...

  10. Kyungdong Photovoltaic Energy Corp KPE formerly Photon Semiconductor...

    Open Energy Info (EERE)

    Photovoltaic Energy Corp KPE formerly Photon Semiconductor Energy Jump to: navigation, search Name: Kyungdong Photovoltaic Energy Corp (KPE) (formerly Photon Semiconductor &...

  11. 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...

  12. Sandia Energy - Sandia and EMCORE: Solar Photovoltaics, Fiber...

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

    EMCORE: Solar Photovoltaics, Fiber Optics, MODE, and Energy Efficiency Home Renewable Energy Energy Partnership Concentrating Solar Power Photovoltaic Research & Capabilities Solar...

  13. Solar Photovoltaic Installation Market Trends | OpenEI Community

    Open Energy Info (EERE)

    Solar Photovoltaic Installation Market Trends Home John55364's picture Submitted by John55364(95) Contributor 14 May, 2015 - 02:24 Global Solar Photovoltaic (PV) Installation...

  14. 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...

  15. Solar Junction Develops World Record Setting Concentrated Photovoltaic...

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

    Solar Junction Develops World Record Setting Concentrated Photovoltaic Solar Cell Solar Junction Develops World Record Setting Concentrated Photovoltaic Solar Cell April 18, 2013 -...

  16. Cost and Potential of Monolithic CIGS Photovoltaic Modules (Presentati...

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

    Cost and Potential of Monolithic CIGS Photovoltaic Modules IEEE Photovoltaic Specialists Conference, New Orleans Kelsey A. W. Horowitz and Michael Woodhouse June 17, 2015 NREL...

  17. Hydrolysis of biomass material

    DOE Patents [OSTI]

    Schmidt, Andrew J.; Orth, Rick J.; Franz, James A.; Alnajjar, Mikhail

    2004-02-17

    A method for selective hydrolysis of the hemicellulose component of a biomass material. The selective hydrolysis produces water-soluble small molecules, particularly monosaccharides. One embodiment includes solubilizing at least a portion of the hemicellulose and subsequently hydrolyzing the solubilized hemicellulose to produce at least one monosaccharide. A second embodiment includes solubilizing at least a portion of the hemicellulose and subsequently enzymatically hydrolyzing the solubilized hemicellulose to produce at least one monosaccharide. A third embodiment includes solubilizing at least a portion of the hemicellulose by heating the biomass material to greater than 110.degree. C. resulting in an aqueous portion that includes the solubilized hemicellulose and a water insoluble solids portion and subsequently separating the aqueous portion from the water insoluble solids portion. A fourth embodiment is a method for making a composition that includes cellulose, at least one protein and less than about 30 weight % hemicellulose, the method including solubilizing at least a portion of hemicellulose present in a biomass material that also includes cellulose and at least one protein and subsequently separating the solubilized hemicellulose from the cellulose and at least one protein.

  18. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12Working withPhotoPhotovoltaic Manufacturing

  19. Biomass Energy Data Book | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData Book Jump to:

  20. Biomass Energy Services Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData Book Jump to:Services

  1. Biomass One LP | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData Book JumpInvestmentLP

  2. Biomass Resources Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData Book

  3. Biomass Scenario Model | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData BookScenario Model Jump

  4. 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

  5. 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

  6. Photovoltaic olar nergy Development on Landfills

    E-Print Network [OSTI]

    of a selfballasting photovoltaic solar racking system will affect a closed landfills dirt cap. The effects areas of remote and Photovoltaic solar panels with a self-ballasting system. Source: www to generate up to 7,000 megawatts of solar energy while avoiding sensitive biological resources. The data

  7. National Center for Photovoltaics at NREL

    ScienceCinema (OSTI)

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

    2014-06-10

    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.

  8. 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 REPORT FOR THE MIT FUTURE OF SOLAR ENERGY STUDY #12;#12;A REPORT FOR THE MIT FUTURE OF SOLAR ENERGY STUDY A Duel in the Sun The Solar Photovoltaics Technology Conflict between China and the United States1 John

  9. 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 REPORT FOR THE MIT FUTURE OF SOLAR ENERGY STUDY #12;#12;A REPORT fOR THE MIT fUTURE Of SOLAR ENERGY STUDY A Duel in the Sun The Solar Photovoltaics Technology Conflict between China and the United States1 John

  10. National Center for Photovoltaics at NREL

    SciTech Connect (OSTI)

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

    2013-11-07

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

  11. Interactions of Lignin and Hemicellulose and Effects on Biomass Deconstruction

    E-Print Network [OSTI]

    Li, Hongjia

    2012-01-01

    such lignocellulosic biomass feedstocks into ethanol via atools. Different biomass feedstocks have different cell wallmajor lignocellulosic biomass feedstocks, except softwoods,

  12. Remotely sensed heat anomalies linked with Amazonian forest biomass declines

    E-Print Network [OSTI]

    Toomey, M.; Roberts, D. A.; Still, C.; Goulden, M. L.; McFadden, J. P.

    2011-01-01

    with Amazonian forest biomass declines Michael Toomey, 1 Darof aboveground living biomass (p biomass declines, Geophys. Res.

  13. Integrated Photovoltaics | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on OpeneiAlbanian Centre for EnergyTorcuato DiPhotovoltaics

  14. System and process for biomass treatment

    DOE Patents [OSTI]

    Dunson, Jr., James B; Tucker, III, Melvin P; Elander, Richard T; Lyons, Robert C

    2013-08-20

    A system including an apparatus is presented for treatment of biomass that allows successful biomass treatment at a high solids dry weight of biomass in the biomass mixture. The design of the system provides extensive distribution of a reactant by spreading the reactant over the biomass as the reactant is introduced through an injection lance, while the biomass is rotated using baffles. The apparatus system to provide extensive assimilation of the reactant into biomass using baffles to lift and drop the biomass, as well as attrition media which fall onto the biomass, to enhance the treatment process.

  15. Biomass Rapid Analysis Network (BRAN)

    SciTech Connect (OSTI)

    Not Available

    2003-10-01

    Helping the emerging biotechnology industry develop new tools and methods for real-time analysis of biomass feedstocks, process intermediates and The Biomass Rapid Analysis Network is designed to fast track the development of modern tools and methods for biomass analysis to accelerate the development of the emerging industry. The network will be led by industry and organized and coordinated through the National Renewable Energy Lab. The network will provide training and other activities of interest to BRAN members. BRAN members will share the cost and work of rapid analysis method development, validate the new methods, and work together to develop the training for the future biomass conversion workforce.

  16. Biomass 2013: Breakout Speaker Biographies

    Office of Energy Efficiency and Renewable Energy (EERE)

    This document outlines the biographies of the breakout speakers for Biomass 2013, held July 31-August 1 in Washington, D.C.

  17. Biomass Production and Nitrogen Recovery

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

    Project Peer Review WBS 4.2.2.10: Biomass Production and Nitrogen Recovery Date: March 23, 2015 Technology Area Review: Sustainability Principal Investigator: M. Cristina Negri...

  18. Hydrothermal Liquefaction of Biomass

    SciTech Connect (OSTI)

    Elliott, Douglas C.

    2010-12-10

    Hydrothermal liquefaction technology is describes in its relationship to fast pyrolysis of biomass. The scope of work at PNNL is discussed and some intial results are presented. HydroThermal Liquefaction (HTL), called high-pressure liquefaction in earlier years, is an alternative process for conversion of biomass into liquid products. Some experts consider it to be pyrolysis in solvent phase. It is typically performed at about 350 C and 200 atm pressure such that the water carrier for biomass slurry is maintained in a liquid phase, i.e. below super-critical conditions. In some applications catalysts and/or reducing gases have been added to the system with the expectation of producing higher yields of higher quality products. Slurry agents ('carriers') evaluated have included water, various hydrocarbon oils and recycled bio-oil. High-pressure pumping of biomass slurry has been a major limitation in the process development. Process research in this field faded away in the 1990s except for the HydroThermal Upgrading (HTU) effort in the Netherlands, but has new resurgence with other renewable fuels in light of the increased oil prices and climate change concerns. Research restarted at Pacific Northwest National Laboratory (PNNL) in 2007 with a project, 'HydroThermal Liquefaction of Agricultural and Biorefinery Residues' with partners Archer-Daniels-Midland Company and ConocoPhillips. Through bench-scale experimentation in a continuous-flow system this project investigated the bio-oil yield and quality that could be achieved from a range of biomass feedstocks and derivatives. The project was completed earlier this year with the issuance of the final report. HydroThermal Liquefaction research continues within the National Advanced Biofuels Consortium with the effort focused at PNNL. The bench-scale reactor is being used for conversion of lignocellulosic biomass including pine forest residue and corn stover. A complementary project is an international collaboration with Canada to investigate kelp (seaweed) as a biomass feedstock. The collaborative project includes process testing of the kelp in HydroThermal Liquefaction in the bench-scale unit at PNNL. HydroThermal Liquefaction at PNNL is performed in the hydrothermal processing bench-scale reactor system. Slurries of biomass are prepared in the laboratory from whole ground biomass materials. Both wet processing and dry processing mills can be used, but the wet milling to final slurry is accomplished in a stirred ball mill filled with angle-cut stainless steel shot. The PNNL HTL system, as shown in the figure, is a continuous-flow system including a 1-litre stirred tank preheater/reactor, which can be connected to a 1-litre tubular reactor. The product is filtered at high-pressure to remove mineral precipitate before it is collected in the two high-pressure collectors, which allow the liquid products to be collected batchwise and recovered alternately from the process flow. The filter can be intermittently back-flushed as needed during the run to maintain operation. By-product gas is vented out the wet test meter for volume measurement and samples are collected for gas chromatography compositional analysis. The bio-oil product is analyzed for elemental content in order to calculate mass and elemental balances around the experiments. Detailed chemical analysis is performed by gas chromatography-mass spectrometry and 13-C nuclear magnetic resonance is used to evaluate functional group types in the bio-oil. Sufficient product is produced to allow subsequent catalytic hydroprocessing to produce liquid hydrocarbon fuels. The product bio-oil from hydrothermal liquefaction is typically a more viscous product compared to fast pyrolysis bio-oil. There are several reasons for this difference. The HTL bio-oil contains a lower level of oxygen because of more extensive secondary reaction of the pyrolysis products. There are less amounts of the many light oxygenates derived from the carbohydrate structures as they have been further reacted to phenolic Aldol condensation products. The bio-oil

  19. Biomass: Biogas Generator

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|Bilayer GrapheneW.HelpReport) |Biomass andBIOGAS

  20. Biomass: Potato Power

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|Bilayer GrapheneW.HelpReport) |Biomass andBIOGASPOTATO

  1. Biomass -Feedstock User Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels Researchof Energy|Make FuelsBioindustryWBS 1.2.3.3 Biomass -

  2. Sandia Energy - Biomass

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULI ProgramPhysical SocietylasersPondBiomass Home

  3. Science Activities in Biomass

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcoming ReleaseSecurityPediatric CancerSchedulesItemActivities in Biomass

  4. Sandia Energy - Biomass

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

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

  5. Editorial: Photovoltaic Materials and Devices

    SciTech Connect (OSTI)

    Sopori, B.; Tan, T.; Rupnowski, P.

    2012-01-01

    As the global energy needs grow, there is increasing interest in the generation of electricity by photovoltaics (PVs) devices or solar cells - devices that convert sunlight to electricity. Solar industry has seen an enormous growth during the last decade. The sale of PV modules has exceeded 27 GW in 2011, with significant contributions to the market share from all technologies. While the silicon technology continues to have the dominant share, the other thin film technologies (CdTe, CIGS, a-Si, and organic PV) are experiencing fast growth. Increased production of silicon modules has led to a very rapid reduction in their price and remains as benchmark for other technologies. The PV industry is in full gear to commercialize new automated equipment for solar cell and module production, instrumentation for process monitoring technologies, and for implementation of other cost-reduction approaches, and extensive research continues to be carried out in many laboratories to improve the efficiency of solar cells and modules without increasing the production costs. A large variety of solar cells, which differ in the material systems used, design, PV structure, and even the principle of PV conversion, are designed to date. This special issue contains peer-reviewed papers in the recent developments in research related to broad spectrum of photovoltaic materials and devices. It contains papers on many aspects of solar cells-the growth and deposition, characterization, and new material development.

  6. The Design and Implementation of Solar Power with Photovoltaics

    E-Print Network [OSTI]

    Lavaei, Javad

    The Design and Implementation of Solar Power with Photovoltaics E4511 Power Systems Analysis Final Project Victor Campbell vfc2106 #12;2 Table of Contents 1. Introduction 2. Solar Cells 2.1 Photovoltaic of solar energy is the design of solar, or photovoltaic, cells. Photovoltaic cells are semiconductor

  7. Online Fault Detection and Tolerance for Photovoltaic Energy Harvesting Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    Online Fault Detection and Tolerance for Photovoltaic Energy Harvesting Systems Xue Lin 1 , Yanzhi, yanzhiwa, dizhu, pedram}@usc.edu, 2 naehyuck@elpl.snu.ac.kr ABSTRACT Photovoltaic energy harvesting systems, Performance, Reliability. Keywords Photovoltaic System, Fault Detection, Fault Tolerance, Photovoltaic Panel

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2011-01-01

    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

  9. Clean fractionation of biomass

    SciTech Connect (OSTI)

    1995-09-01

    The US DOE Alternative Feedstocks (AF) program is forging new links between the agricultural community and the chemicals industry through support of research and development (R&D) that uses green feedstocks to produce chemicals. The program promotes cost-effective industrial use of renewable biomass as feedstocks to manufacture high-volume chemical building blocks. Industrial commercialization of such processes would stimulate the agricultural sector by increasing the demand of agricultural and forestry commodities. A consortium of five DOE national laboratories has been formed with the objectives of providing industry with a broad range of expertise and helping to lower the risk of new process development through federal cost sharing. The AF program is conducting ongoing research on a clean fractionation process, designed to convert biomass into materials that can be used for chemical processes and products. The focus of the clean fractionation research is to demonstrate to industry that one technology can successfully separate all types of feedstocks into predictable types of chemical intermediates.

  10. Treatment of biomass to obtain fermentable sugars

    DOE Patents [OSTI]

    Dunson, Jr., James B. (Newark, DE); Tucker, Melvin (Lakewood, CO); Elander, Richard (Evergreen, CO); Hennessey, Susan M. (Avondale, PA)

    2011-04-26

    Biomass is pretreated using a low concentration of aqueous ammonia at high biomass concentration. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.

  11. BIOMASS LIQUEFACTION EFFORTS IN THE UNITED STATES

    E-Print Network [OSTI]

    Ergun, Sabri

    2012-01-01

    icat ion Preheat zone Biomass liquefaction Tubular reactor (design is shown in Figure 7, C I Biomass ua efaction Fic LBL Process BiOMASS t NON-REVERS lNG CYCLONE CONDENSER (

  12. OUT Success Stories: Biomass Gasifiers

    SciTech Connect (OSTI)

    Jones, J.

    2000-08-31

    The world's first demonstration of an efficient, low-pressure biomass gasifier capable of producing a high-quality fuel is now operating in Vermont. The gasifier converts 200 tons of solid biomass per day into a clean-burning gas with a high energy content for electricity generation.

  13. Process for concentrated biomass saccharification

    DOE Patents [OSTI]

    Hennessey, Susan M. (Avondale, PA); Seapan, Mayis (Landenberg, PA); Elander, Richard T. (Evergreen, CO); Tucker, Melvin P. (Lakewood, CO)

    2010-10-05

    Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

  14. 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.

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

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01

    Organic Solar Concentrators for Photovoltaics,” Science,Polymer Photovoltaics for Solar Energy Conversion,” Adv.solar concentrators for building integrated photovoltaics,”

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

    E-Print Network [OSTI]

    Brown, Gregory Ferguson

    2011-01-01

    Generation  Photovoltaics:  Advanced  Solar  Energy  be  achieved  through  photovoltaics  (solar  cells).    Photovoltaics     There  are  two  requirements  for  designing  a  high  efficiency  solar  

  17. Photovoltaic performance of ultra-small PbSe quantum dots

    E-Print Network [OSTI]

    Ma, Wanli

    2014-01-01

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

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

    E-Print Network [OSTI]

    Cappers, Peter

    2012-01-01

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

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

    E-Print Network [OSTI]

    Sathrum, Aaron John

    2011-01-01

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

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

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01

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

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

    E-Print Network [OSTI]

    Mariani, Giacomo

    2013-01-01

    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,

  2. Temperature-Dependent Polarization in Field-Effect Transport and Photovoltaic Measurements of Methylammonium Lead Iodide

    E-Print Network [OSTI]

    2015-01-01

    Two-­?Layer Organic Photovoltaic Cell. Appl Phys Lett 1986,Sensitizers for Photovoltaic Cells. J Am Chem Soc 2009, 131,transistor, capacitor and photovoltaic cell measurements all

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

    E-Print Network [OSTI]

    Mauldin, Clayton Edward

    2010-01-01

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

  4. Using Self-Assembly to Control Nanoscale Morphology in Semiconducting Polymers for Application in Organic Photovoltaics

    E-Print Network [OSTI]

    Ferreira, Amy Susan

    2015-01-01

    Fullerene Organic Photovoltaic Cells. Nat Commun 2013, 4. (Bulk- Heterojunction Photovoltaic Cells. Appl. Phys. Lett.C60 Heterojunction Photovoltaic Cell. Appl. Phys. Lett.

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

    E-Print Network [OSTI]

    Borenstein, Severin

    2005-01-01

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

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

    E-Print Network [OSTI]

    Zhang, Teresa Weirui

    2011-01-01

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

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

    E-Print Network [OSTI]

    Zhang, Teresa; Dornfeld, David

    2010-01-01

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

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

    E-Print Network [OSTI]

    Zhang, Teresa Weirui

    2011-01-01

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

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

    E-Print Network [OSTI]

    Hoen, Ben

    2012-01-01

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

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

    E-Print Network [OSTI]

    Mauldin, Clayton Edward

    2010-01-01

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

  11. Photovoltaic Devices Employing Ternary PbSxSe1-x Nanocrystals

    E-Print Network [OSTI]

    Alivisatos, A. Paul

    2009-01-01

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

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

    E-Print Network [OSTI]

    Hoen, Ben

    2013-01-01

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

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

    E-Print Network [OSTI]

    Dillon, Robert

    2013-01-01

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

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

    E-Print Network [OSTI]

    Sathrum, Aaron John

    2011-01-01

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

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

    E-Print Network [OSTI]

    Barbose, Galen

    2013-01-01

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

  16. Temperature-Dependent Polarization in Field-Effect Transport and Photovoltaic Measurements of Methylammonium Lead Iodide

    E-Print Network [OSTI]

    2015-01-01

    High- Performance Photovoltaic Perovskite Layers Fabricatedand Its Relation to Photovoltaic Performance. The Journal ofJ. Giant Switchable Photovoltaic Effect in Organometal

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

    E-Print Network [OSTI]

    Tabone, Michaelangelo D; Callaway, Duncan S

    2015-01-01

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

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

    E-Print Network [OSTI]

    Zhang, Teresa Weirui

    2011-01-01

    of pv systems. Progress in Photovoltaics: Research andpv system flatcon. Progress in Photovoltaics: Research andmw pv installation. Progress in Photovoltaics: Research and

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

    E-Print Network [OSTI]

    Brown, Gregory Ferguson

    2011-01-01

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

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

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01

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

  1. Using Self-Assembly to Control Nanoscale Morphology in Semiconducting Polymers for Application in Organic Photovoltaics

    E-Print Network [OSTI]

    Ferreira, Amy Susan

    2015-01-01

    of Polymer-Based Photovoltaics. J. Polym. Sci. Part B Polym.Heterojunction Organic Photovoltaics: Correlating EfficiencyFullerene Quasi-Bilayer Photovoltaics. J. Phys. Chem. Lett.

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

    E-Print Network [OSTI]

    Pan, Heng

    2009-01-01

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

  3. PbS and Ge Nanocrystals: A Pathway Towards Third Generation Photovoltaics

    E-Print Network [OSTI]

    Church, Carena

    2014-01-01

    Towards Third Generation Photovoltaics by Carena PuameliChurch Third-generation photovoltaics offer a way around theJ. Nozik. Third generation photovoltaics based on multiple

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

    E-Print Network [OSTI]

    Hoen, Ben

    2012-01-01

    DO PHOTOVOLTAIC ENERGY SYSTEMS AFFECT RESIDENTIAL SELLINGemployer. DO PHOTOVOLTAIC ENERGY SYSTEMS AFFECT RESIDENTIALhave sold with photovoltaic (PV) energy systems installed at

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

    E-Print Network [OSTI]

    Tabone, Michaelangelo D; Callaway, Duncan S

    2015-01-01

    for grid-connected photovoltaic system based on advancedof many photovoltaic power generation systems dis- persed inSYSTEMS Modeling Variability and Uncertainty of Photovoltaic

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

    E-Print Network [OSTI]

    Barbose, Galen

    2013-01-01

    from Residential Photovoltaic Systems Naïm R. Darghouth,FROM RESIDENTIAL PHOTOVOLTAIC SYSTEMS Naïm R. DarghouthABSTRACT Residential photovoltaic (PV) systems in the US are

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

    E-Print Network [OSTI]

    Darghouth, Naim

    2014-01-01

    Margolis, R. , 2004. Are Photovoltaic Systems Worth More toeconomics of commercial photovoltaic systems in California.a grid-connected photovoltaic system. Renewable Energy 32,

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

    E-Print Network [OSTI]

    Mills, Andrew

    2009-01-01

    R. Margolis. 2004. “Are Photovoltaic Systems Worth More to1993. “Distributed photovoltaic system evaluation by Arizonaof Commercial Photovoltaic Systems in California. ” LBNL-

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

    E-Print Network [OSTI]

    Wiser, Ryan; Mills, Andrew; Barbose, Galen; Golove, William

    2007-01-01

    R. Margolis. 2004. “Are Photovoltaic Systems Worth More to1993. “Distributed photovoltaic system evaluation by Arizonaof Commercial Photovoltaic Systems in California Ryan Wiser,

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

    E-Print Network [OSTI]

    Zhang, Teresa; Dornfeld, David

    2010-01-01

    impacts and costs of photovoltaic systems: Current state ofAssessment of Photovoltaic Systems Teresa W. Zhang and Davidassessment of photovoltaic systems is a rich field, with

  11. Third-Party Finance for Commercial Photovoltaic Systems: The Rise of the PPA

    E-Print Network [OSTI]

    Bolinger, Mark A

    2009-01-01

    Economics of Commercial Photovoltaic Systems in California,Finance for Commercial Photovoltaic Systems: The Rise of theof grid-connected photovoltaic (PV) systems in the United

  12. Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /

    E-Print Network [OSTI]

    Ghaffari, Azad

    2013-01-01

    Power Point Tracking in Photovoltaic Systems . . . 4.1DC- DC converter photovoltaic systems: power optimizationgrid-connected photovoltaic systems,” IET Electric Power

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

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    R. Margolis. 2004. “Are Photovoltaic Systems Worth More to1993. “Distributed photovoltaic system evaluation by Arizonaof Commercial Photovoltaic Systems in California. ” ”LBNL-

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

    E-Print Network [OSTI]

    Leow, Shin Woei

    2014-01-01

    concentrators for building integrated photovoltaics,” 2013,the performance of building integrated photovoltaics,” Sol.evaluation of building-integrated photovoltaics,” Energy,

  15. PbS and Ge Nanocrystals: A Pathway Towards Third Generation Photovoltaics

    E-Print Network [OSTI]

    Church, Carena

    2014-01-01

    A Pathway Towards Third Generation Photovoltaics by CarenaPuameli Church Third-generation photovoltaics offer a wayJ. Nozik. Third generation photovoltaics based on multiple

  16. Nanocrystal Photovoltaics: The Case of Cu2S-CdS

    E-Print Network [OSTI]

    Rivest, Jessica Louis Baker

    2011-01-01

    Green, M. A. Third generation photovoltaics: Ultra-highthe perspective of third-generation photovoltaics: Verticalphotovoltaics. Third generation photovoltaics have been

  17. Catalytic Hydrothermal Gasification of Biomass

    SciTech Connect (OSTI)

    Elliott, Douglas C.

    2008-05-06

    A recent development in biomass gasification is the use of a pressurized water processing environment in order that drying of the biomass can be avoided. This paper reviews the research undertaken developing this new option for biomass gasification. This review does not cover wet oxidation or near-atmospheric-pressure steam-gasification of biomass. Laboratory research on hydrothermal gasification of biomass focusing on the use of catalysts is reviewed here, and a companion review focuses on non-catalytic processing. Research includes liquid-phase, sub-critical processing as well as super-critical water processing. The use of heterogeneous catalysts in such a system allows effective operation at lower temperatures, and the issues around the use of catalysts are presented. This review attempts to show the potential of this new processing concept by comparing the various options under development and the results of the research.

  18. Photovoltaic module and module arrays

    DOE Patents [OSTI]

    Botkin, Jonathan; Graves, Simon; Lenox, Carl J. S.; Culligan, Matthew; Danning, Matt

    2013-08-27

    A photovoltaic (PV) module including a PV device and a frame, The PV device has a PV laminate defining a perimeter and a major plane. The frame is assembled to and encases the laminate perimeter, and includes leading, trailing, and side frame members, and an arm that forms a support face opposite the laminate. The support face is adapted for placement against a horizontal installation surface, to support and orient the laminate in a non-parallel or tilted arrangement. Upon final assembly, the laminate and the frame combine to define a unitary structure. The frame can orient the laminate at an angle in the range of 3.degree.-7.degree. from horizontal, and can be entirely formed of a polymeric material. Optionally, the arm incorporates integral feature(s) that facilitate interconnection with corresponding features of a second, identically formed PV module.

  19. 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)

    2012-07-17

    A photovoltaic (PV) module including a PV device and a frame. The PV device has a PV laminate defining a perimeter and a major plane. The frame is assembled to and encases the laminate perimeter, and includes leading, trailing, and side frame members, and an arm that forms a support face opposite the laminate. The support face is adapted for placement against a horizontal installation surface, to support and orient the laminate in a non-parallel or tilted arrangement. Upon final assembly, the laminate and the frame combine to define a unitary structure. The frame can orient the laminate at an angle in the range of 3.degree.-7.degree. from horizontal, and can be entirely formed of a polymeric material. Optionally, the arm incorporates integral feature(s) that facilitate interconnection with corresponding features of a second, identically formed PV module.

  20. Hydrogen Production Cost Estimate Using Biomass Gasification...

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

    likely take precedence over biomass for hydrogen production. Thus, the price of biomass feedstocks for hydrogen, in the absence of major federal policy changes, will presumably...

  1. BSCL Use Plan: Solving Biomass Recalcitrance

    SciTech Connect (OSTI)

    Himmel, M.; Vinzant, T.; Bower, S.; Jechura, J.

    2005-08-01

    Technical report describing NREL's new Biomass Surface Characterization Laboratory (BSCL). The BSCL was constructed to provide the most modern commercial surface characterization equipment for studying biomass surfaces.

  2. Biomass 2013: Presentations | Department of Energy

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

    3: Presentations Biomass 2013: Presentations This page displays the links to available presentations from Day One and Day Two of the Bioenergy Technologies Office's (BETO) Biomass...

  3. Supplying High-Quality, Raw Biomass

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

    Supplying High-Quality, Raw Biomass The building blocks to supply high-quality raw biomass start with harvesting and collection practices, product storage and recommendations of...

  4. Symbiosis: Addressing Biomass Production Challenges and Climate...

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

    Symbiosis: Addressing Biomass Production Challenges and Climate Change Symbiosis: Addressing Biomass Production Challenges and Climate Change This presentation was the opening...

  5. Biomass Scenario Model Scenario Library: Definitions, Construction...

    Office of Scientific and Technical Information (OSTI)

    S. 09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; 29 ENERGY PLANNING, POLICY AND ECONOMY BIOMASS; BIOFUEL; BSM; SYSTEM DYNAMICS; BIOFUEL INCENTIVES; SCENARIOS; Bioenergy;...

  6. Converting Biomass to High-Value Feedstocks

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

    Converting Biomass to High-Value Feedstocks Advanced feedstocks play an important role in economically and efficiently converting biomass into bioenergy products. Advanced...

  7. Hydrogen Production Cost Estimate Using Biomass Gasification...

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

    Cost Estimate Using Biomass Gasification: Independent Review Hydrogen Production Cost Estimate Using Biomass Gasification: Independent Review This independent review is the...

  8. Providing the Resource: Biomass Feedstocks & Logistics

    SciTech Connect (OSTI)

    2010-03-01

    A summary of Biomass Program resource assessment activities, feedstock trials, and harvest, storage, handling, and transport activities to support biomass feedstock development and use.

  9. Mobile Biomass Pelletizing System

    SciTech Connect (OSTI)

    Thomas Mason

    2009-04-16

    This grant project examines multiple aspects of the pelletizing process to determine the feasibility of pelletizing biomass using a mobile form factor system. These aspects are: the automatic adjustment of the die height in a rotary-style pellet mill, the construction of the die head to allow the use of ceramic materials for extreme wear, integrating a heat exchanger network into the entire process from drying to cooling, the use of superheated steam for adjusting the moisture content to optimum, the economics of using diesel power to operate the system; a break-even analysis of estimated fixed operating costs vs. tons per hour capacity. Initial development work has created a viable mechanical model. The overall analysis of this model suggests that pelletizing can be economically done using a mobile platform.

  10. Residential photovoltaic worth : a summary assessment

    E-Print Network [OSTI]

    Dinwoodie, Thomas L.

    1982-01-01

    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 ...

  11. Sandia Energy - Microsystems Enabled Photovoltaics (MEPV)

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

    of microsystem-enabled photovoltaic (MEPV) cells (497 downloads) Microscale c-Si (C)PV Cells for Low-Cost Power (259 downloads) Flexible MEPV Publications Ultrablade Fabrics...

  12. Poudre Valley REA- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    Poudre Valley REA (PVREA) is providing rebates to their residential customers who install photovoltaic (PV) systems on their homes. The consumer agrees to assign all Renewable Energy Credits (RECs)...

  13. Central Georgia EMC- Photovoltaic Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    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...

  14. GreyStone Power- Photovoltaic Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    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...

  15. Photovoltaic Online Training Course for Code Officials

    Broader source: Energy.gov [DOE]

    The Photovoltaic Online Training Course for Code Officials is a free online training tool for those officials who conduct reviews and inspections of residential PV systems. Throughout the course's...

  16. 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 ...

  17. Applications of nanoimprinted structures to organic photovoltaics

    E-Print Network [OSTI]

    Flores, Eletha J

    2013-01-01

    Small-molecule organic photovoltaic cells (OPVs) have the potential to be a low-cost, flexible power conversion solution to many energy problems. These OPVs take advantage of an extremely thin active layer which enables ...

  18. Low-Cost Installation of Concentrating Photovoltaic

    E-Print Network [OSTI]

    allow for minimal disturbance of soil and ecosystem, and comprehensive full system delivery: April 2009 to March 2012 For more information, please contact: · Placing concentrating photovoltaic for this information or the researc

  19. Time-Resolved Photoluminescence and Photovoltaics

    SciTech Connect (OSTI)

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

    2005-01-01

    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.

  20. Silicon cast wafer recrystallization for photovoltaic applications

    E-Print Network [OSTI]

    Hantsoo, Eerik T. (Eerik Torm)

    2008-01-01

    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 ...

  1. 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...

  2. Photovoltaic concentrator assembly with optically active cover

    DOE Patents [OSTI]

    Plesniak, Adam P

    2014-01-21

    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.

  3. Request for Information: Photovoltaic Research and Development

    Office of Energy Efficiency and Renewable Energy (EERE)

    Manufacturing costs associated with photovoltaic module production have decreased dramatically over the past decade, but further improvements are still needed. Cell and module developments that maximize efficiency, service lifetime, and total energy output while minimizing installation material and labor costs are critical to the future of commercial photovoltaic technologies. Continued innovation in these areas will play a vital role in achieving a levelized cost of energy that is low enough to drive widespread deployment for decades to come.

  4. 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.

  5. US Photovoltaic Patents, 1988--1990

    SciTech Connect (OSTI)

    Not Available

    1991-12-01

    This document contains US patents on terrestrial photovoltaic (PV) power applications, including systems, components, and materials, as well as manufacturing and support functions. The patent entries in this document were issued from 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.

  6. US Photovoltaic Patents, 1988--1990

    SciTech Connect (OSTI)

    Not Available

    1991-12-01

    This document contains US patents on terrestrial photovoltaic (PV) power applications, including systems, components, and materials, as well as manufacturing and support functions. The patent entries in this document were issued from 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.

  7. NREL Photovoltaic Program FY 1996 Annual Report

    SciTech Connect (OSTI)

    Not Available

    1997-08-01

    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.

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

    E-Print Network [OSTI]

    Chin, B.L.

    2011-01-01

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

  9. Dynamic Reconfiguration of Photovoltaic Energy Harvesting System in Hybrid Electric Vehicles

    E-Print Network [OSTI]

    Pedram, Massoud

    Dynamic Reconfiguration of Photovoltaic Energy Harvesting System in Hybrid Electric Vehicles Yanzhi, xuelin, pedram}@usc.edu, 2 {naehyuck}@elpl.snu.ac.kr ABSTRACT Photovoltaic (PV) energy harvesting system. Keywords Photovoltaic System, Hybrid Electric Vehicle, Photovoltaic Array Reconfiguration, Dynamic

  10. Photovoltaics Program: utility interface southwest regional workshop proceedings

    SciTech Connect (OSTI)

    1981-04-01

    This was the first of a series of regional workshops that will focus on the photovoltaic and utility interface, and the use of photovoltaics as a cogeneration option by utilities. The needs and constraints of the utilities are defined and an understanding is established of the capabilities and limitations of photovoltaic systems as an alternative electricity generation option by utilities. Utilities' viewpoints regarding large-scale central systems and small-scale, interconnected, distributed systems are given. The Public Utility Regulatory Policies Act and other economic, legislative, and regulatory factors affecting photovoltaic systems are discussed. Current status of photovoltaic systems with respect to the Department of Energy Photovoltaic Program is given. (LEW)

  11. Biomass Surface Characterization Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    This fact sheet provides information about Biomass Surface Characterization Laboratory capabilities and applications at NREL.

  12. Biomass for energy and materials Local technologies -

    E-Print Network [OSTI]

    - holds Industry Agricult. Pretreatment of biomass and waste CO2 Gasification Combustion MicrobialBiomass for energy and materials Local technologies - in a global perspective Erik Steen Jensen Bioenergy and biomass Biosystems Department Risø National Laboratory Denmark #12;Biomass - a local resource

  13. Biomass Program 2007 Accomplishments - Thermochemical Conversion Platform

    SciTech Connect (OSTI)

    none,

    2009-10-27

    This document details the accomplishments of the Biomass Program Thermochemical Conversion Platform in 2007.

  14. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    deployment  of  renewable projects.   Southern California Edison (SCE) has one such program for biomass 

  15. Biomass Program 2007 Accomplishments - Biochemical Conversion Platform

    SciTech Connect (OSTI)

    none,

    2009-10-27

    This document details accomplishments of the Biomass Program Biochemical Conversion Platform accomplishments in 2007.

  16. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Direct Costs Utilities Labor:    Labor  costs  constitute  the  largest  Consumables annual  operating  costs  excluding  biomass  Disposal

  17. Global (International) Energy Policy and Biomass

    SciTech Connect (OSTI)

    Overend, R. P.

    2004-01-01

    Presentation to the California Biomass Collaboration--First Annual Forum, January 8th 2004, Sacramento, California

  18. Cadmium Biosorption Rate in Protonated Sargassum Biomass

    E-Print Network [OSTI]

    Volesky, Bohumil

    Cadmium Biosorption Rate in Protonated Sargassum Biomass J I N B A I Y A N G A N D B O H U M I L V Sargassum fluitans biomass was accompanied by the release of hydrogen protons from the biomass. The uptake the overall biosorption rate of cadmium ions in flat seaweed biomass particles. The overall biosorption

  19. Biomass Program 2007 Accomplishments - Other Technologies

    SciTech Connect (OSTI)

    none,

    2009-10-28

    This document details the accomplishments of the Biomass Program Biodiesel and Other Technologies Platform in 2007.

  20. November 2011 Competition for biomass among

    E-Print Network [OSTI]

    Noble, James S.

    remain high, limiting the development of national or even regional markets for biomass feedstocks. We

  1. Washington State biomass data book

    SciTech Connect (OSTI)

    Deshaye, J.A.; Kerstetter, J.D.

    1991-07-01

    This is the first edition of the Washington State Biomass Databook. It assess sources and approximate costs of biomass fuels, presents a view of current users, identifies potential users in the public and private sectors, and lists prices of competing energy resources. The summary describes key from data from the categories listed above. Part 1, Biomass Supply, presents data increasing levels of detail on agricultural residues, biogas, municipal solid waste, and wood waste. Part 2, Current Industrial and Commercial Use, demonstrates how biomass is successfully being used in existing facilities as an alternative fuel source. Part 3, Potential Demand, describes potential energy-intensive public and private sector facilities. Part 4, Prices of Competing Energy Resources, shows current suppliers of electricity and natural gas and compares utility company rates. 49 refs., 43 figs., 72 tabs.

  2. Presented at the 28th IEEE Photovoltaic Specialists Conference / Sept. 17-22, 2000

    E-Print Network [OSTI]

    Sites, James R.

    Presented at the 28th IEEE Photovoltaic Specialists Conference / Sept. 17-22, 2000 LOCAL Photovoltaic Specialists C

  3. An Analysis of the Effects of Residential Photovoltaic Energy Systems on Home Sales Prices in California

    E-Print Network [OSTI]

    Hoen, Ben

    2011-01-01

    Residential Photovoltaic Energy Systems on Home Sales PricesResidential Photovoltaic Energy Systems on Home Sales Prices

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

    E-Print Network [OSTI]

    Mills, Andrew

    2009-01-01

    of Solar: Prices and Output from Distributed PhotovoltaicPhotovoltaic Energy Availability During Periods of Peak Power Prices. ”

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

    E-Print Network [OSTI]

    Wiser, Ryan; Mills, Andrew; Barbose, Galen; Golove, William

    2007-01-01

    of Solar: Prices and Ouput from Distributed PhotovoltaicPhotovoltaic Energy Availability During Periods of Peak Power Prices. ”

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

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    of Solar: Prices and Output from Distributed PhotovoltaicPhotovoltaic Energy Availability During Periods of Peak Power Prices. ”

  7. Diesel fuel from biomass

    SciTech Connect (OSTI)

    Kuester, J.L.

    1984-01-01

    A project to convert various biomass materials to diesel type transportation fuel compatible with current engine designs and the existing distribution system is described. A continuous thermochemical indirect liquefaction approach is used. The system consists of a circulating solid fluidized bed gasification system to produce a synthesis gas containing olefins, hydrogen and carbon monoxide followed by a catalytic liquefaction step to convert the synthesis gas to liquid hydrocarbon fuel. The major emphasis on the project at the present time is to maximize product yield. A level of 60 gals of diesel type fuel per ton of feedstock (dry, ash free basis) is expected. Numerous materials have been processed through the conversion system without any significant change in product quality (essentially C/sub 7/-C/sub 17/ paraffinic hydrocarbons with cetane indicies of 50+). Other tasks in progress include factor studies, process simplification, process control and scale-up to a 10 ton/day Engineering Test Facility. 18 references, 4 figures, 9 tables.

  8. Report on Biomass Drying Technology

    SciTech Connect (OSTI)

    Amos, W. A.

    1999-01-12

    Using dry fuel provides significant benefits to combustion boilers, mainly increased boiler efficiency, lower air emissions, and improved boiler operation. The three main choices for drying biomass are rotary dryers, flash dryers, and superheated steam dryers. Which dryer is chosen for a particular application depends very much on the material characteristics of the biomass, the opportunities for integrating the process and dryer, and the environmental controls needed or already available.

  9. Instructions for CEC-1250E-4 Biomass and Fossil Fuel Usage Report for Biomass Facilities

    E-Print Network [OSTI]

    Instructions for CEC-1250E-4 Biomass and Fossil Fuel Usage Report for Biomass Facilities Biomass energy input basis in the upcoming calendar year? - Please check "yes" or "no." 12. Types of Biomass Fuel Used - Please report the quantity and supplier of the following types of biomass fuel used

  10. Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne lidar

    E-Print Network [OSTI]

    2007-01-01

    Biomass and Bioenergy 31 (2007) 646­655 Estimating biomass of individual pine trees using airborne biomass and bio-energy feedstocks. The overall goal of this study was to develop a method for assessing aboveground biomass and component biomass for individual trees using airborne lidar data in forest settings

  11. Apparatus for making photovoltaic devices

    DOE Patents [OSTI]

    Foote, James B. (Toledo, OH); Kaake, Steven A. F. (Perrysburg, OH); Meyers, Peter V. (Bowling Green, OH); Nolan, James F. (Sylvania, OH)

    1994-12-13

    A process and apparatus (70) for making a large area photovoltaic device (22) that is capable of generating low cost electrical power. The apparatus (70) for performing the process includes an enclosure (126) providing a controlled environment in which an oven (156) is located. At least one and preferably a plurality of deposition stations (74,76,78) provide heated vapors of semiconductor material within the oven (156) for continuous elevated temperature deposition of semiconductor material on a sheet substrate (24) including a glass sheet (26) conveyed within the oven. The sheet substrate (24) is conveyed on a roller conveyor (184) within the oven (156) and the semiconductor material whose main layer (82) is cadmium telluride is deposited on an upwardly facing surface (28) of the substrate by each deposition station from a location within the oven above the roller conveyor. A cooling station (86) rapidly cools the substrate (24) after deposition of the semiconductor material thereon to strengthen the glass sheet of the substrate.

  12. Quantum well multijunction photovoltaic cell

    DOE Patents [OSTI]

    Chaffin, Roger J. (Albuquerque, NM); Osbourn, Gordon C. (Albuquerque, NM)

    1987-01-01

    A monolithic, quantum well, multilayer photovoltaic cell comprises a p-n junction comprising a p-region on one side and an n-region on the other side, each of which regions comprises a series of at least three semiconductor layers, all p-type in the p-region and all n-type in the n-region; each of said series of layers comprising alternating barrier and quantum well layers, each barrier layer comprising a semiconductor material having a first bandgap and each quantum well layer comprising a semiconductor material having a second bandgap when in bulk thickness which is narrower than said first bandgap, the barrier layers sandwiching each quantum well layer and each quantum well layer being sufficiently thin that the width of its bandgap is between said first and second bandgaps, such that radiation incident on said cell and above an energy determined by the bandgap of the quantum well layers will be absorbed and will produce an electrical potential across said junction.

  13. Biomonitoring for the photovoltaics industry

    SciTech Connect (OSTI)

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

    1995-07-01

    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.

  14. Interdigitated photovoltaic power conversion device

    DOE Patents [OSTI]

    Ward, James Scott (Englewood, CO); Wanlass, Mark Woodbury (Golden, CO); Gessert, Timothy Arthur (Conifer, CO)

    1999-01-01

    A photovoltaic power conversion device has a top surface adapted to receive impinging radiation. The device includes at least two adjacent, serially connected cells. Each cell includes a semi-insulating substrate and a lateral conductivity layer of a first doped electrical conductivity disposed on the substrate. A base layer is disposed on the lateral conductivity layer and has the same electrical charge conductivity thereof. An emitter layer of a second doped electrical conductivity of opposite electrical charge is disposed on the base layer and forms a p-n junction therebetween. A plurality of spaced channels are formed in the emitter and base layers to expose the lateral conductivity layer at the bottoms thereof. A front contact grid is positioned on the top surface of the emitter layer of each cell. A first current collector is positioned along one outside edge of at least one first cell. A back contact grid is positioned in the channels at the top surface of the device for engagement with the lateral conductivity layer. A second current collector is positioned along at least one outside edge of at least one oppositely disposed second cell. Finally, an interdigitation mechanism is provided for serially connecting the front contact grid of one cell to the back contact grid of an adjacent cell at the top surface of the device.

  15. Interdigitated photovoltaic power conversion device

    DOE Patents [OSTI]

    Ward, J.S.; Wanlass, M.W.; Gessert, T.A.

    1999-04-27

    A photovoltaic power conversion device has a top surface adapted to receive impinging radiation. The device includes at least two adjacent, serially connected cells. Each cell includes a semi-insulating substrate and a lateral conductivity layer of a first doped electrical conductivity disposed on the substrate. A base layer is disposed on the lateral conductivity layer and has the same electrical charge conductivity thereof. An emitter layer of a second doped electrical conductivity of opposite electrical charge is disposed on the base layer and forms a p-n junction therebetween. A plurality of spaced channels are formed in the emitter and base layers to expose the lateral conductivity layer at the bottoms thereof. A front contact grid is positioned on the top surface of the emitter layer of each cell. A first current collector is positioned along one outside edge of at least one first cell. A back contact grid is positioned in the channels at the top surface of the device for engagement with the lateral conductivity layer. A second current collector is positioned along at least one outside edge of at least one oppositely disposed second cell. Finally, an interdigitation mechanism is provided for serially connecting the front contact grid of one cell to the back contact grid of an adjacent cell at the top surface of the device. 15 figs.

  16. Quantum well multijunction photovoltaic cell

    DOE Patents [OSTI]

    Chaffin, R.J.; Osbourn, G.C.

    1983-07-08

    A monolithic, quantum well, multilayer photovoltaic cell comprises a p-n junction comprising a p-region on one side and an n-region on the other side, each of which regions comprises a series of at least three semiconductor layers, all p-type in the p-region and all n-type in the n-region; each of said series of layers comprising alternating barrier and quantum well layers, each barrier layer comprising a semiconductor material having a first bandgap and each quantum well layer comprising a semiconductor material having a second bandgap when in bulk thickness which is narrower than said first bandgap, the barrier layers sandwiching each quantum well layer and each quantum well layer being sufficiently thin that the width of its bandgap is between said first and second bandgaps, such that radiation incident on said cell and above an energy determined by the bandgap of the quantum well layers will be absorbed and will produce an electrical potential across said junction.

  17. Planar photovoltaic solar concentrator module

    DOE Patents [OSTI]

    Chiang, C.J.

    1992-12-01

    A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor. 5 figs.

  18. Planar photovoltaic solar concentrator module

    DOE Patents [OSTI]

    Chiang, Clement J. (New Brunswick, NJ)

    1992-01-01

    A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor.

  19. Can land management and biomass utilization help mitigate global warming?

    SciTech Connect (OSTI)

    Schlamadinger, B.; Lauer, M.

    1996-12-31

    With rising concern about the increase of the CO{sub 2} concentration in the earth`s atmosphere there is considerable interest in various land-use based mitigation options, like afforestation of surplus agricultural land with or without subsequent harvest; improved forest management; strategies that rely on wood plantations managed in short rotation or agricultural crops with high yields to produce bioenergy, timber and other biomass products. In the first step of this study, the net carbon benefits of such strategies will be calculated per unit of land, i.e., per hectare, because it is assumed that land is the limiting resource for such strategies in the future, and thus, the benefits per unit land need to be optimized. For these calculations a computer model has been developed. The results take into account the time dependence of carbon storage in the biosphere and are shown graphically both for land and for plantation systems with constant output of biomass over time. In the second step, these results will be combined with data on available land for Austria. The potential contribution of each of the above strategies towards mitigating the Austrian CO{sub 2} emissions will be demonstrated. A comparison to other renewable mitigation options, like solar thermal or photovoltaics, will be drawn in terms of available land resources and overall CO{sub 2} reductions.

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

    E-Print Network [OSTI]

    Barr, Jonathan (Jonathan Allan)

    2005-01-01

    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 ...

  1. Theoretical investigations of the electronic processes in organic photovoltaics

    E-Print Network [OSTI]

    Yost, Shane Robert

    2013-01-01

    The design of more efficient organic photovoltaics starts with an increase in understanding of the fundamental processes related to organic photovoltaics, such as the charge separation processes at the organic/organic ...

  2. III-V High-Efficiency Multijunction Photovoltaics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-06-01

    Capabilities fact sheet that includes scope, core competencies and capabilities, and contact/web information for III-V High-Efficiency Multijunction Photovoltaics at the National Center for Photovoltaics.

  3. Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term

    E-Print Network [OSTI]

    Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections November 2012 #12;Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections David Feldman1 , Galen Barbose2........................................................................................................................................... 1 2. Historical and Recent Reported Prices

  4. Fiscalini Farms Biomass Energy Project

    SciTech Connect (OSTI)

    William Stringfellow; Mary Kay Camarillo; Jeremy Hanlon; Michael Jue; Chelsea Spier

    2011-09-30

    In this final report describes and documents research that was conducted by the Ecological Engineering Research Program (EERP) at the University of the Pacific (Stockton, CA) under subcontract to Fiscalini Farms LP for work under the Assistance Agreement DE-EE0001895 'Measurement and Evaluation of a Dairy Anaerobic Digestion/Power Generation System' from the United States Department of Energy, National Energy Technology Laboratory. Fiscalini Farms is operating a 710 kW biomass-energy power plant that uses bio-methane, generated from plant biomass, cheese whey, and cattle manure via mesophilic anaerobic digestion, to produce electricity using an internal combustion engine. The primary objectives of the project were to document baseline conditions for the anaerobic digester and the combined heat and power (CHP) system used for the dairy-based biomass-energy production. The baseline condition of the plant was evaluated in the context of regulatory and economic constraints. In this final report, the operation of the plant between start-up in 2009 and operation in 2010 are documented and an interpretation of the technical data is provided. An economic analysis of the biomass energy system was previously completed (Appendix A) and the results from that study are discussed briefly in this report. Results from the start-up and first year of operation indicate that mesophilic anaerobic digestion of agricultural biomass, combined with an internal combustion engine, is a reliable source of alternative electrical production. A major advantage of biomass energy facilities located on dairy farms appears to be their inherent stability and ability to produce a consistent, 24 hour supply of electricity. However, technical analysis indicated that the Fiscalini Farms system was operating below capacity and that economic sustainability would be improved by increasing loading of feedstocks to the digester. Additional operational modifications, such as increased utilization of waste heat and better documentation of potential of carbon credits, would also improve the economic outlook. Analysis of baseline operational conditions indicated that a reduction in methane emissions and other greenhouse gas savings resulted from implementation of the project. The project results indicate that using anaerobic digestion to produce bio-methane from agricultural biomass is a promising source of electricity, but that significant challenges need to be addressed before dairy-based biomass energy production can be fully integrated into an alternative energy economy. The biomass energy facility was found to be operating undercapacity. Economic analysis indicated a positive economic sustainability, even at the reduced power production levels demonstrated during the baseline period. However, increasing methane generation capacity (via the importation of biomass codigestate) will be critical for increasing electricity output and improving the long-term economic sustainability of the operation. Dairy-based biomass energy plants are operating under strict environmental regulations applicable to both power-production and confined animal facilities and novel approached are being applied to maintain minimal environmental impacts. The use of selective catalytic reduction (SCR) for nitrous oxide control and a biological hydrogen sulfide control system were tested at this facility. Results from this study suggest that biomass energy systems can be compliant with reasonable scientifically based air and water pollution control regulations. The most significant challenge for the development of biomass energy as a viable component of power production on a regional scale is likely to be the availability of energy-rich organic feedstocks. Additionally, there needs to be further development of regional expertise in digester and power plant operations. At the Fiscalini facility, power production was limited by the availability of biomass for methane generation, not the designed system capacity. During the baseline study period, feedstocks included manure, sudan grass silage, and

  5. Photovoltaics: Solar Energy Technologies Program (SETP) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-10-01

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

  6. Optimizing Carbon Nanotube Contacts for Use in Organic Photovoltaics: Preprint

    SciTech Connect (OSTI)

    Barnes, T. M.; Blackburn, J. L.; Tenent, R. C.; Morfa, A.; Heben, M.; Coutts, T. J.

    2008-05-01

    This report describes research on optimizing carbon nanotube networks for use as transparent electrical contacts (TCs) in organic photovoltaics (OPV).

  7. Photovoltaic industry progress through 1984

    SciTech Connect (OSTI)

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

    1985-04-01

    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.

  8. Annual Report: Photovoltaic Subcontract Program FY 1991

    SciTech Connect (OSTI)

    Summers, K. A.

    1992-03-01

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

  9. Use of photovoltaics for waste heat recovery

    DOE Patents [OSTI]

    Polcyn, Adam D

    2013-04-16

    A device for recovering waste heat in the form of radiated light, e.g. red visible light and/or infrared light includes a housing having a viewing window, and a photovoltaic cell mounted in the housing in a relationship to the viewing window, wherein rays of radiated light pass through the viewing window and impinge on surface of the photovoltaic cell. The housing and/or the cell are cooled so that the device can be used with a furnace for an industrial process, e.g. mounting the device with a view of the interior of the heating chamber of a glass making furnace. In this manner, the rays of the radiated light generated during the melting of glass batch materials in the heating chamber pass through the viewing window and impinge on the surface of the photovoltaic cells to generate electric current which is passed onto an electric load.

  10. Design principles for shift current photovoltaics

    E-Print Network [OSTI]

    Cook, Ashley M; de Juan, Fernando; Moore, Joel E

    2015-01-01

    While the basic principles and limitations of conventional solar cells are well understood, relatively little attention has gone toward evaluating and maximizing the potential efficiency of photovoltaic devices based on shift currents. In this work, a sum rule approach is introduced and used to outline design principles for optimizing shift currents for photon energies near the band gap, which depend on Berry connections as well as standard band structure. Using these we identify two new classes of shift current photovoltaics, ferroelectric polymer films and orthorhombic monochalcogenides, both of which exhibit peak photoresponsivities larger than predictions for previously known photovoltaics of this type. Using physically motivated tight-binding models, the full frequency dependent response of these materials is obtained. Exploring the phase space of these models, we find photoresponsivities that can exceed $100$ mA/W. These results show that considering the microscopic origin of shift current via effective...

  11. Optical Refrigeration for Ultra-Efficient Photovoltaics

    E-Print Network [OSTI]

    Manor, Assaf; Rotschild, Carmel

    2014-01-01

    Improving the conversion efficiency of solar energy to electricity is most important to mankind. For single-junction photovoltaic solar-cells, the Shockley-Queisser thermodynamic efficiency limit is extensively due to the heat dissipation, inherently accompanying the quantum process of electro-chemical potential generation. Concepts such as solar thermo-photovoltaics and thermo-photonics, have been suggested to harness this wasted heat, yet efficiencies exceeding the Shockley-Queisser limit have not been demonstrated due to the challenge of operating at high temperatures. Here, we present a highly efficient converter based on endothermic photoluminescence, which operates at relative low temperatures. The thermally induced blue-shifted photoluminescence of a low-bandgap absorber is coupled to a high-bandgap photovoltaic cell. The high absorber's photo-current and the high cell's voltage results in 69% maximal theoretical conversion efficiencies. We experimentally demonstrate tenfold thermal-enhancement of usef...

  12. Apparatus for encapsulating a photovoltaic module

    DOE Patents [OSTI]

    Albright, Scot P. (El Paso, TX); Dugan, Larry M. (Boulder, CO)

    1995-10-24

    The subject inventions concern various photovoltaic module designs to protect the module from horizontal and vertical impacts and degradation of solar cell efficiency caused by moisture. In one design, a plurality of panel supports that are positioned adjacent to the upper panel in a photovoltaic module absorb vertical forces exerted along an axis perpendicular to the upper panel. Other designs employ layers of glass and tempered glass, respectively, to protect the module from vertical impacts. A plurality of button-shaped channels is used around the edges of the photovoltaic module to absorb forces applied to the module along an axis parallel to the module and direct moisture away from the module that could otherwise penetrate the module and adversely affect the cells within the module. A spacer is employed between the upper and lower panels that has a coefficient of thermal expansion substantially equivalent to the coefficient of thermal expansion of at least one of the panels.

  13. Photovoltaic Power for the Nanosat Project

    SciTech Connect (OSTI)

    Rose, B.H.

    1999-06-01

    This report describes the characteristics of photovoltaic arrays that maybe suitable for use with nanosatellite electronic systems. It includes a thorough literature search on power management and distribution systems for satellites as small as microsatellites. The major conclusion to be drawn is that it is the total system, including satellite electronic system, photovoltaic systems, peak power tracker and the power management and distribution systems which need to be optimized. An example of a peak power tracker is given, and a novel series connected boost unit is described which might allow the system voltage to be increased if enough photovoltaic panels to operate the systems in real time is impractical. Finally, it is recommended that the development effort be oriented and expanded to include a peak power tracker and other power management and distribution systems.

  14. Photovoltaic Subcontract Program. Annual report, FY 1992

    SciTech Connect (OSTI)

    Not Available

    1993-03-01

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

  15. Photovoltaic module with light reflecting backskin

    DOE Patents [OSTI]

    Gonsiorawski, Ronald C. (Danvers, MA)

    2007-07-03

    A photovoltaic module comprises electrically interconnected and mutually spaced photovoltaic cells that are encapsulated by a light-transmitting encapsulant between a light-transparent front cover and a back cover, with the back cover sheet being an ionomer/nylon alloy embossed with V-shaped grooves running in at least two directions and coated with a light reflecting medium so as to provide light-reflecting facets that are aligned with the spaces between adjacent cells and oriented so as to reflect light falling in those spaces back toward said transparent front cover for further internal reflection onto the solar cells, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to the photovoltaic cells, thereby increasing the current output of the module. The internal reflector improves power output by as much as 67%.

  16. ECE 414A/514A Photovoltaic Solar Energy Systems

    E-Print Network [OSTI]

    Arizona, University of

    ECE 414A/514A Photovoltaic Solar Energy Systems Instructor: Prof. Raymond K. Kostuk Time: MWF 04, and development of photovoltaic cells and it is expected to continue into the foreseeable future. This trend to provide an introduction to the theory and operation of different types of photovoltaic devices

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    E-Print Network [OSTI]

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    E-Print Network [OSTI]

    Theoretical insights into multibandgap hybrid perovskites for photovoltaic applications J. Even theoretically the crystalline phases of one of the hybrids relevant for photovoltaic applications, namely CH3NH3, evidencing inversion of band edge states. Keywords: Photovoltaic, Hybrid perovskite, density functional

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    E-Print Network [OSTI]

    Performance and Analysis of Photovoltaic (PV)Technologies at Selected Sites This report presents As part of Cooperative Agreement No. DE-EE0003507 Under Task 3.1: Photovoltaic Systems September 2014`i at Manoa #12;Performance and Analysis of Different Photovoltaic Technologies at Selected Sites Prepared

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    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

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    Amonix Concentrated Photovoltaic Systems Center for Energy Research at UNLV #12;A State-of-the-Art Solar Power System Center for Energy Research at UNLV The most common photovoltaic (PV) systems-Concentration Photovoltaic System. Manufactured by AmonixTM, the first MegamoduleTM system ­ Model 5500 ­ was a single

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    Boyer, Edmond

    Interdisciplinary Institute for Innovation What cost for photovoltaic modules in 2020? Lessons from@mines-paristech.fr hal-00805668,version2-27May2013 #12;1 What cost for photovoltaic modules in 2020? Lessons from Abstract Except in few locations, photovoltaic generated electricity remains considerably more expensive

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    Progress in Recycling of Retired Cadmium- Telluride Photovoltaic Modules Postdoctoral: Wenming Wang-Talk Program July 21, 2005 #12;Recycling Retired Photovoltaic Modules to Valuable Products, Where Are We.M., Feasibility of Recycling of Cadmium-Telluride Photovoltaics, Presented at 134th TMS Annual Meeting &Exhibition

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    STATISTICAL ANALYSIS AND STRUCTURE OPTIMIZATION OF LARGE PHOTOVOLTAIC MODULE RATHEESH R on the output power of large Photovoltaic (PV) module by modeling each PV cell as a current source whose short. Photovoltaic (PV) is a simple and elegant method of harnessing the sun's energy. PV devices (solar cells

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    E-Print Network [OSTI]

    Atwater, Harry

    Photovoltaic Measurements in Single-Nanowire Silicon Solar Cells Michael D. Kelzenberg, Daniel B-voltage measurements were made under simulated Air Mass 1.5 global illumination. Photovoltaic spectral response work by our group has shown that macroscopic Si wire arrays (>1 cm2 in area) suitable for photovoltaic

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    E-Print Network [OSTI]

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    Design and Control of an Inverter for Photovoltaic Applications by Søren Bækhøj Kjær Dissertation Assistant. He also taught photovoltaic systems for terrestrial- and space-applications (Power system quality, control and optimized design, for fuel cell and photovoltaic applications. He is currently

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    Giannakis, Georgios

    Optimal Dispatch of Photovoltaic Inverters in Residential Distribution Systems Emiliano Dall. The increased penetration of roof-top photovoltaic (PV) systems has highlighted pressing needs to address power--Distribution networks, inverter control, optimal power flow (OPF), photovoltaic (PV) systems, sparsity, voltage

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    E-Print Network [OSTI]

    Heinemann, Detlev

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    E-Print Network [OSTI]

    Oregon, University of

    AEC PHOTOVOLTAIC TEST FACILITY ­ FIRST YEAR TEST DATA James Krumsick Alternative Energy Consortium@uoregon.edu ABSTRACT Alternative Energy Consortium's Photovoltaic test facility (AEC PV) came on line in August, 2004 is to evaluate different photovoltaic products and to monitor the performance of these products under different

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    McGehee, Michael

    Photovoltaic cells made from conjugated polymers infiltrated into mesoporous titania Kevin M photovoltaic cells by infiltrating the conjugated polymer regioregular poly 3-hexylthiophene into films for electrons to travel to an electrode after electron transfer has occurred. The photovoltaic cells have

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    Lehman, Brad

    Multi-level converters for three-phase photovoltaic applications Renato M. Nakagomi, Ye Zhao, Brad a switching matrix device and photovoltaic (PV) panels. The approach is based on the dynamic reconfiguration photovoltaic PV panels. The number of PV panels that are connected to the load can be altered using dynamic

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    SolarStat: Modeling Photovoltaic Sources through Stochastic Markov Processes Marco Miozzo target photovoltaic panels with small form factors, as those exploited by embedded communication devices the GPL license at [1]. Index Terms--Renewable Photovoltaic Sources, Stochastic Markov Modeling, Empirical

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    Kastner, Marc A.

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    Zhang, Junshan

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    New South Wales, University of

    ARC Centre of Excellence for Advanced Silicon Photovoltaics and Photonics Annual Report 2005 ARC Centre of Excellence for Advanced Silicon Photovoltaics and Photonics Annual Report 2005 #12;Centre of Excellence for Advanced Silicon Photovoltaics and Photonics is a Centre of Excellence of The Australian

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