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1

Next-Generation Photovoltaic Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

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

2

Next-Generation Photovoltaic Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Next-Generation Photovoltaic Next-Generation Photovoltaic Technologies Next-Generation Photovoltaic Technologies Print Monday, 06 February 2012 15:48 Organic solar cells based on the polymer/fullerene bulk heterojunction (BHJ) model represent one of the most promising technologies for next-generation solar energy conversion due to their low cost and scalability. Traditional organic photovoltaics (OPVs) are thought to have interpenetrating networks of pure polymer and fullerene layers with discrete interfaces. Researchers at Argonne National Laboratory, working with collaborators from the University of Chicago, LBNL, and NIST, used ALS Beamline 11.0.1.2 to perform resonant soft x-ray scattering (RSoXS) on PTB7/fullerene BHJ solar cells to probe performance-related structures at different length scales. These solar cells set a historic record of conversion efficiency (7.4%). The RSoXS demonstrated that the superior performance of PTB7/fullerene solar cells is attributed to surprising hierarchical nanomorphologies ranging from several nanometers of crystallites to tens of nanometers of nanocrystallite aggregates in intermixed PTB7-rich and fullerene-rich domains, themselves hundreds of nanometers in size. This work will lead the research community to rethink ideal OPV morphologies, reconsider which structures should be targeted in OPVs, and enable the rational design of even higher-performance organic solar cells.

3

Next-Generation Photovoltaic Technologies in the United States: Preprint  

DOE Green Energy (OSTI)

This paper describes highlights of exploratory research into next-generation photovoltaic (PV) technologies funded by the United States Department of Energy (DOE) through its National Renewable Energy Laboratory (NREL) for the purpose of finding disruptive or ''leap frog'' technologies that may leap ahead of conventional PV in energy markets. The most recent set of 14 next-generation PV projects, termed Beyond the Horizon PV, will complete their third year of research this year. The projects tend to take two notably different approaches: high-efficiency solar cells that are presently too expensive, or organic solar cells having potential for low cost although efficiencies are currently too low. We will describe accomplishments for several of these projects. As prime examples of what these last projects have accomplished, researchers at Princeton University recently reported an organic solar cell with 5% efficiency (not yet NREL-verified). And Ohio State University scientists recently demonstrated an 18% (NREL-verified) single-junction GaAs solar cell grown on a low-cost silicon substrate. We also completed an evaluation of proposals for the newest set of exploratory research projects, but we are unable to describe them in detail until funding becomes available to complete the award process.

McConnell, R.; Matson, R.

2004-06-01T23:59:59.000Z

4

Photovoltaic Power Generation  

E-Print Network (OSTI)

This report is an overview of photovoltaic power generation. The purpose of the report is to provide the reader with a general understanding of photovoltaic power generation and how PV technology can be practically applied. There is a brief discussion of early research and a description of how photovoltaic cells convert sunlight to electricity. The report covers concentrating collectors, flat-plate collectors, thin-film technology, and building-integrated systems. The discussion of photovoltaic cell types includes single-crystal, poly-crystalline, and thin-film materials. The report covers progress in improving cell efficiencies, reducing manufacturing cost, and finding economic applications of photovoltaic technology. Lists of major manufacturers and organizations are included, along with a discussion of market trends and projections. The conclusion is that photovoltaic power generation is still more costly than conventional systems in general. However, large variations in cost of conventional electrical power, and other factors, such as cost of distribution, create situations in which the use of PV power is economically sound. PV power is used in remote applications such as communications, homes and villages in developing countries, water pumping, camping, and boating. Gridconnected applications such as electric utility generating facilities and residential rooftop installations make up a smaller but more rapidly expanding segment of PV use. Furthermore, as technological advances narrow the cost gap, more applications are becoming economically feasible at an accelerating rate. iii TABLE OF CONTENTS LIST OF TABLES AND FIGURES ...................................................................................v

Tom Penick; Gale Greenleaf Instructor; Thomas Penick; Bill Louk; Bill Louk

1998-01-01T23:59:59.000Z

5

Photovoltaic Technology Incubator Awards  

SciTech Connect

This factsheet gives an overview of the Photovoltaic (PV) Technology Incubator Awards and the Solar America Initiative (SAI).

2007-06-01T23:59:59.000Z

6

Glitter™ Photovoltaic Technology - Energy Innovation Portal  

Technology Marketing Summary Revolutionary microsolar technology utilizes glitter-sized photovoltaic cells to change how we generate and use solar power.

7

SunShot Initiative: Next Generation Photovoltaics II  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Systems Integration Balance of Systems Next Generation Photovoltaics II Twenty-three solar projects are investigating transformational photovoltaic (PV) technologies with the...

8

A Novel MPPT Control Technology Based on Cloud Model for Photovoltaic Power Generation  

Science Conference Proceedings (OSTI)

The cloud model is a mathematical representation to fuzziness and randomness in linguistic concepts, and integrates the fuzziness and randomness of a linguistic concept in a unified way. This model is a new method for transformation between qualitative ... Keywords: photovoltaic power generation, MPPT, duty factor, cloud model

Lei An; Wei Fan

2011-10-01T23:59:59.000Z

9

EA-341 Photovoltaic Technologies, LLC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

10

Photovoltaic manufacturing technology  

DOE Green Energy (OSTI)

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.

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

1991-12-01T23:59:59.000Z

11

Photovoltaic technology development at Sandia National Laboratories  

SciTech Connect

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

1981-12-31T23:59:59.000Z

12

Photovoltaic Energy Technology Module | Open Energy Information  

Open Energy Info (EERE)

Photovoltaic Energy Technology Module Photovoltaic Energy Technology Module Jump to: navigation, search Tool Summary Name: Photovoltaic Energy Technology Module Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy, Solar Topics: Technology characterizations Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, References: Photovoltaic Energy Technology Module[1] Resources Portable Solar Photovoltaic Lanterns: Performance and Certification Specification, and Type Approval, ESMAP TECHNICAL PAPER 078 Testing of Storage Batteries used in Stand Alone Photovoltaic Power Systems, Test procedures and examples of test results Technical Specifications for Solar Home Systems (SHS), Rural Electrification and Renewable Energy Development (PV Component) Project

13

Solar Photovoltaic Technologies Available for Licensing ...  

Site Map; Printable Version; Share this resource. Send a link to Solar Photovoltaic Technologies Available for Licensing - Energy Innovation Portalto ...

14

Photovoltaic Resources and Technologies | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Photovoltaic Resources and Technologies Photovoltaic Resources and Technologies Photovoltaic Resources and Technologies October 7, 2013 - 9:22am Addthis Graphic of the eTraining logo Training Available Selecting, Implementing, and Funding Photovoltaic Systems in Federal Facilities: Learn how to select, implement, and fund a photovoltaic system by taking this FEMP eTraining course. This page provides a brief overview of photovoltaic (PV) technologies supplemented by specific information to apply PV within the Federal sector. Overview Photovoltaic cells convert sunlight into electricity. Systems typically include a PV module or array made of individual PV cells installed on or near a building or other structure. A power inverter converts the direct current (DC) electricity produced by the PV cells to alternative current

15

Photovoltaic manufacturing technology, Phase 1  

DOE Green Energy (OSTI)

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

Not Available

1992-10-01T23:59:59.000Z

16

Photovoltaic Technology Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Photovoltaic Technology Basics Photovoltaic Technology Basics Photovoltaic Technology Basics August 16, 2013 - 4:47pm Addthis Text Version 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. First used in about 1890, "photovoltaic" has two parts: photo, derived from the Greek word for light, and volt, relating to electricity pioneer Alessandro Volta. And this is what photovoltaic materials and devices do-they convert light energy into electrical energy, as French physicist Edmond Becquerel discovered as early as 1839. Becquerel discovered the process of using sunlight to produce an electric current in a solid material. But it took more than another century to truly

17

Federal Energy Management Program: Photovoltaic Resources and Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaic Photovoltaic Resources and Technologies to someone by E-mail Share Federal Energy Management Program: Photovoltaic Resources and Technologies on Facebook Tweet about Federal Energy Management Program: Photovoltaic Resources and Technologies on Twitter Bookmark Federal Energy Management Program: Photovoltaic Resources and Technologies on Google Bookmark Federal Energy Management Program: Photovoltaic Resources and Technologies on Delicious Rank Federal Energy Management Program: Photovoltaic Resources and Technologies on Digg Find More places to share Federal Energy Management Program: Photovoltaic Resources and Technologies on AddThis.com... Energy-Efficient Products Technology Deployment Renewable Energy Federal Requirements Renewable Resources & Technologies

18

Photovoltaic Power Generation in the Stellar Environments  

E-Print Network (OSTI)

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

Girish, T E

2010-01-01T23:59:59.000Z

19

Photovoltaic Power Generation in the Stellar Environments  

E-Print Network (OSTI)

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

T. E. Girish; S. Aranya

2010-12-03T23:59:59.000Z

20

Photovoltaic Technology Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technology Basics Technology Basics Photovoltaic Technology Basics August 16, 2013 - 4:47pm Addthis Text Version 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. First used in about 1890, "photovoltaic" has two parts: photo, derived from the Greek word for light, and volt, relating to electricity pioneer Alessandro Volta. And this is what photovoltaic materials and devices do-they convert light energy into electrical energy, as French physicist Edmond Becquerel discovered as early as 1839. Becquerel discovered the process of using sunlight to produce an electric current in a solid material. But it took more than another century to truly

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Novel Materials for Photovoltaic Technologies: Preprint  

DOE Green Energy (OSTI)

While existing photovoltaic technologies continue to advance, there are still many exciting opportunities in the area of novel materials. These opportunities arise because there is a substantial need for reducing the costs associated with the preparation and processing of photovoltaics, and because the theoretically possible photovoltaic efficiencies have yet to be achieved in practical devices. Thus it remains reasonable to continue photovoltaic research activity aimed at entirely new approaches to processing and at entirely new materials as the active media. This group identified three areas for further consideration: (a) Nano/molecular composites and hierarchical structures; (b) Organic semiconductors; and (c) Hot carrier devices.

Alivisatos, P. (University of California Berkeley); Carter, S. (University of California Santa Barbara); Ginley, D.; Nozik, A. (National Renewable Energy Laboratory); Meyer, G. (Johns Hopkins University); Rosenthal, S. (Vanderbilt University)

1999-04-01T23:59:59.000Z

22

Photovoltaics  

DOE Green Energy (OSTI)

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

Not Available

2008-09-01T23:59:59.000Z

23

SMUD forges a new path in photovoltaics generation  

SciTech Connect

The Sacramento Municipal Utility District's dedication of a 1 MW photovoltaic power plant that will ultimately deliver alternating current to utility custtomers promises to place the fledgling technology in the realm of future, economic generating options. The foundation of a five-phase 100 MW photovoltaic project aimed at bringing the technology's cost down to competitive levels, the plant is also providing a technological base for the development of utility-designed equipment that may be of broader use in the industry. Despite government involvement, the utility feels its participation was essential. The use of solar power for summer peaking can eliminate incremental fuel costs as the peak climbs. The conversion device is the M52-S photovoltaic flat plate module developed by ARCO. The current 50 cent cost per kilowatt-hour will decline as the program progresses to phase 5. 1 figure, 1 table.

Utroska, D.

1984-08-01T23:59:59.000Z

24

NREL: Learning - Solar Photovoltaic Technology Basics  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Photovoltaic Technology Basics Solar Photovoltaic Technology Basics Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player This video provides an overview of NREL's research in solar photovoltaic technology. Text Version Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual

25

Multijunction Photovoltaic Technologies for High-Performance Concentrators: Preprint  

DOE Green Energy (OSTI)

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

McConnell, R.; Symko-Davies, M.

2006-05-01T23:59:59.000Z

26

Solar photovoltaic technology: The thin film option  

DOE Green Energy (OSTI)

Photovoltaics (PV) the direct conversion of sunlight to electricity was first discovered by scientists at the Bell Labs in 1954. In the late 1960's and 1970's most of the solar cell technology has been used for space applications to power satellites. The main work horse for the PV technology has been crystalline silicon (Si) solar cells. Over the past 15 years this has led to cost reduction from $35/kWh to about $0.30/kWh at the present time. Demonstrated reliability of 20 years or more has resulted in acceptance by several utilities. However, cost reductions in crystalline Si solar cells have been limited by the cost of wafering of ingots and the attendant loss of material. A number of Si sheet solar cells are also being investigated. In the past decade the emphasis of the research and development effort has been focused on thin film solar cells, which have the potential for generating power at much lower cost of $1-2/Wp. Thin film solar cells that are presently being investigated and are generating global attention are: amorphous silicon (a-Si:H), cadmium telluride (CdTe), and copper indium diselenide (CuInSe/sub 2,/ or CIS). In the past few years, considerable progress has been; made by all three of these thin film solar cells. This paper reviews the current status and future potential of these exiting thin film solar cell technologies.

Ullal, H.S.; Zweibel, K.; Sabisky, E.S.; Surek, T.

1988-01-01T23:59:59.000Z

27

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

DOE Green Energy (OSTI)

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

Not Available

2009-10-01T23:59:59.000Z

28

Solar Photovoltaic Technology Update - 2005  

Science Conference Proceedings (OSTI)

This report surveys the state of the solar photovoltaic (PV) industry in the United States and worldwide in 2005. The installed capacity of PV has continued recent trends and has increased dramatically in 20058212particularly in Germany and Japan, where government policies encourage its deployment, and to a lesser extent in the United States8212while at the same time manufacturers and vendors continued to make incremental performance improvements. In some markets, shortages of silicon feedstock or finish...

2006-03-28T23:59:59.000Z

29

Shanghai Hi Show Photovoltaic Science Technology Co Ltd | Open Energy  

Open Energy Info (EERE)

Hi Show Photovoltaic Science Technology Co Ltd Hi Show Photovoltaic Science Technology Co Ltd Jump to: navigation, search Name Shanghai Hi-Show Photovoltaic Science & Technology Co., Ltd Place Shanghai Municipality, China Zip 201109 Sector Solar Product China-based Manufacturer of module tester and solar simulator. References Shanghai Hi-Show Photovoltaic Science & Technology Co., Ltd[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Shanghai Hi-Show Photovoltaic Science & Technology Co., Ltd is a company located in Shanghai Municipality, China . References ↑ "Shanghai Hi-Show Photovoltaic Science & Technology Co., Ltd" Retrieved from "http://en.openei.org/w/index.php?title=Shanghai_Hi_Show_Photovoltaic_Science_Technology_Co_Ltd&oldid=350840

30

Nantong Qiangsheng Photovoltaic Technology Co Ltd QS Solar | Open Energy  

Open Energy Info (EERE)

Nantong Qiangsheng Photovoltaic Technology Co Ltd QS Solar Nantong Qiangsheng Photovoltaic Technology Co Ltd QS Solar Jump to: navigation, search Name Nantong Qiangsheng Photovoltaic Technology Co Ltd (QS Solar) Place Shanghai Municipality, China Zip 200336 Sector Solar Product Chinese amorphous thin-film solar cell maker. References Nantong Qiangsheng Photovoltaic Technology Co Ltd (QS Solar)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Nantong Qiangsheng Photovoltaic Technology Co Ltd (QS Solar) is a company located in Shanghai Municipality, China . References ↑ "[ Nantong Qiangsheng Photovoltaic Technology Co Ltd (QS Solar)]" Retrieved from "http://en.openei.org/w/index.php?title=Nantong_Qiangsheng_Photovoltaic_Technology_Co_Ltd_QS_Solar&oldid=349037

31

Evaluation of the commercial potential of novel organic photovoltaic technologies  

E-Print Network (OSTI)

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 ...

Barr, Jonathan (Jonathan Allan)

2005-01-01T23:59:59.000Z

32

Photovoltaic manufacturing technology, Phase 1  

DOE Green Energy (OSTI)

This report examines manufacturing multiple-band-gap, multiple- junction solar cells and photovoltaic modules. Amorphous silicon alloy material is deposited (using microwave plasma-assisted chemical vapor deposition) on a stainless-steel substrate using a roll-to-roll process that is continuous and automated. Rapid thermal equilibration of the metal substrate allows rapid throughput of large-area devices in smaller production machines. Potential improvements in the design, deposition, and module fabrication process are described. Problems are also discussed that could impede using these potential improvements. Energy Conversion Devices, Inc. (ECD) proposes cost and time estimates for investigating and solving these problems. Manufacturing modules for less than $1.00 per peak watt and stable module efficiencies of greater than 10% are near-term goals proposed by ECD. 18 refs.

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

1992-03-01T23:59:59.000Z

33

Next-Generation Distributed Power Management for Photovoltaic...  

NLE Websites -- All DOE Office Websites (Extended Search)

Office EETD Safety Program Development Contact Us Department Contacts Media Contacts Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth...

34

Research on advanced photovoltaic manufacturing technology  

DOE Green Energy (OSTI)

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

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

1991-11-01T23:59:59.000Z

35

A variable voltage MPPT control method for photovoltaic generation system  

Science Conference Proceedings (OSTI)

To increase the output efficiency of a photovoltaic (PV) generation system it is important to have an efficient maximum power point tracking (MPPT) technique. This paper describes the analysis, design and implementation of an efficient tracking method ... Keywords: maximum power point tracking (MPPT), photovoltaic generation system, pulse-width-modulation (PWM), solar energy, variable voltage

Liu Liqun; Wang Zhixin

2009-04-01T23:59:59.000Z

36

Cost analysis methodology: Photovoltaic Manufacturing Technology Project  

DOE Green Energy (OSTI)

This report describes work done under Phase 1 of the Photovoltaic Manufacturing Technology (PVMaT) Project. PVMaT is a five-year project to support the translation of research and development in PV technology into the marketplace. PVMaT, conceived as a DOE/industry partnership, seeks to advanced PV manufacturing technologies, reduce PV module production costs, increase module performance, and expand US commercial production capacities. Under PVMaT, manufacturers will propose specific manufacturing process improvements that may contribute to the goals of the project, which is to lessen the cost, thus hastening entry into the larger scale, grid-connected applications. Phase 1 of the PVMaT project is to identify obstacles and problems associated with manufacturing processes. This report describes the cost analysis methodology required under Phase 1 that will allow subcontractors to be ranked and evaluated during Phase 2.

Whisnant, R.A. (Research Triangle Inst., Research Triangle Park, NC (United States))

1992-09-01T23:59:59.000Z

37

Solar Photovoltaics Research and Technology: The Revolution ...  

Science Conference Proceedings (OSTI)

Moreover, technology progress and ownership for next-generation solar PV mandates a ... Dislocations in Si-Doped LEC GaAs Revisited: A Spectrum Image

38

1990 DOE/SANDIA crystalline photovoltaic technology project review meeting  

DOE Green Energy (OSTI)

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

Ruby, D.S. (ed.)

1990-07-01T23:59:59.000Z

39

NREL: Photovoltaics Research - Emerging Technologies Engineering...  

NLE Websites -- All DOE Office Websites (Extended Search)

and the potential benefit of increasing system efficiency. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

40

SunShot Initiative: Photovoltaics Competitive Awards  

NLE Websites -- All DOE Office Websites (Extended Search)

Technologies in Solar Next Generation Photovoltaics Foundational Program to Advance Cell Efficiency SunShot Incubator Program Photovoltaic Supply Chain & Cross-Cutting...

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Photovoltaic generator modeling for large scale distribution system studies.  

E-Print Network (OSTI)

??Geographic regions with favorable conditions for photovoltaic (PHV) power generation are seeing increasing numbers of three-phase commercial installations and single-phase residential sized installations. PHV sources… (more)

Golder, Andrew S.

2007-01-01T23:59:59.000Z

42

1992 DOE/Sandia crystalline photovoltaic technology project review meeting  

DOE Green Energy (OSTI)

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

Maish, A. [ed.

1992-07-01T23:59:59.000Z

43

Photovoltaic industry manufacturing technology. Final report  

DOE Green Energy (OSTI)

This report contains the results of the Photovoltaic (PV) Industry Manufacturing Technology Assessment performed by the Automation and Robotics Research Institute (ARRI) of the University of Texas at Arlington for the National Renewable Energy laboratory. ARRI surveyed eleven companies to determine their state-of-manufacturing in the areas of engineering design, operations management, manufacturing technology, equipment maintenance, quality management, and plant conditions. Interviews with company personnel and plant tours at each of the facilities were conducted and the information compiled. The report is divided into two main segments. The first part of the report presents how the industry as a whole conforms to ``World Class`` manufacturing practices. Conclusions are drawn from the results of a survey as to the areas that the PV industry can improve on to become more competitive in the industry and World Class. Appendix A contains the questions asked in the survey, a brief description of the benefits to performing this task and the aggregate response to the questions. Each company participating in the assessment process received the results of their own facility to compare against the industry as a whole. The second part of the report outlines opportunities that exist on the shop floor for improving Process Equipment and Automation Strategies. Appendix B contains the survey that was used to assess each of the manufacturing processes.

Vanecek, D.; Diver, M.; Fernandez, R. [Automation and Robotics Research Inst., Fort Worth, TX (United States)

1998-08-01T23:59:59.000Z

44

Photovoltaic power conditioners: Development, evolution, and the next generation  

DOE Green Energy (OSTI)

Market-place acceptance of utility-connected photovoltaic (PV) power generation systems and their accelerated installation into residential and commercial applications are heavily dependent upon the ability of their power conditioning subsystems (PCS) to meet high reliability, low cost, and high performance goals. Many PCS development efforts have taken place over the last 15 years, and those efforts have resulted in substantial PCS hardware improvements. These improvements, however, have generally fallen short of meeting many reliability, cost and performance goals. Continuously evolving semiconductor technology developments, coupled with expanded market opportunities for power processing, offer a significant promise of improving PCS reliability, cost and performance, as they are integrated into future PCS designs. This paper revisits past and present development efforts in PCS design, identifies the evolutionary improvements and describes the new opportunities for PCS designs. The new opportunities are arising from the increased availability and capability of semiconductor switching components, smart power devices, and power integrated circuits (PICS).

Bulawka, A. [USDOE, Washington, DC (United States); Krauthamer, S.; Das, R. [Jet Propulsion Lab., Pasadena, CA (United States); Bower, W. [Sandia National Labs., Albuquerque, NM (United States)

1994-07-01T23:59:59.000Z

45

The future of amorphous silicon photovoltaic technology  

DOE Green Energy (OSTI)

Amorphous silicon modules are commercially available. They are the first truly commercial thin-film photovoltaic (PV) devices. Well-defined production processes over very large areas (>1 m{sup 2}) have been implemented. There are few environmental issues during manufacturing, deployment in the field, or with the eventual disposal of the modules. Manufacturing safety issues are well characterized and controllable. The highest measured initial efficiency to date is 13.7% for a small triple-stacked cell and the highest stabilized module efficiency is 10%. There is a consensus among researchers, that in order to achieve a 15% stabilized efficiency, a triple-junction amorphous silicon structure is required. Fundamental improvements in alloys are needed for higher efficiencies. This is being pursued through the DOE/NREL Thin-Film Partnership Program. Cost reductions through improved manufacturing processes are being pursued under the National Renewable Energy Laboratory/US Department of Energy (NREL/DOE)-sponsored research in manufacturing technology (PVMaT). Much of the work in designing a-Si devices is a result of trying to compensate for the Staebler-Wronski effect. Some new deposition techniques hold promise because they have produced materials with lower stabilized defect densities. However, none has yet produced a high efficiency device and shown it to be more stable than those from standard glow discharge deposited material.

Crandall, R.; Luft, W.

1995-06-01T23:59:59.000Z

46

Next-Generation Distributed Power Management for Photovoltaic Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Next-Generation Distributed Power Management for Photovoltaic Systems Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth Date: July 29, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Steven Lanzisera In recent years, the balance of systems (BOS) side of photovoltaic (PV) energy has become a major focus in the effort to drive solar energy towards grid parity. The power management architecture has expanded to include a range of distributed solutions, including microinverters and 'micro' DC-DC converters to solve problems with mismatch (shading), expand networking and control, and solve critical BOS issues such as fire safety. This talk will introduce traditional and distributed approaches for PV systems, and will propose a next-generation architecture based on a new

47

Advancing Solar Through Photovoltaic Technology Innovations | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Advancing Solar Through Photovoltaic Technology Innovations Advancing Solar Through Photovoltaic Technology Innovations Advancing Solar Through Photovoltaic Technology Innovations April 19, 2011 - 5:17pm Addthis At NREL's High-Intensity Pulse Solar Simulator, NREL's Keith Emery removes an array of multijunction solar cells produced by PV Incubator partner Solar Junction. The NREL instrument can produce the intensity of up to 90 suns. | Photo credit: Dennis Schroeder At NREL's High-Intensity Pulse Solar Simulator, NREL's Keith Emery removes an array of multijunction solar cells produced by PV Incubator partner Solar Junction. The NREL instrument can produce the intensity of up to 90 suns. | Photo credit: Dennis Schroeder David Moore Presidential Management Fellow, Office of Energy Efficiency & Renewable Energy

48

Jiangsu Shunfeng Photovoltaic Technology Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Shunfeng Photovoltaic Technology Co Ltd Shunfeng Photovoltaic Technology Co Ltd Jump to: navigation, search Name Jiangsu Shunfeng Photovoltaic Technology Co Ltd Place Changzhou, China Zip 213169 Product Manufacturer of the silicon crystalline cells and modules in China Coordinates 31.766211°, 119.94722° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":31.766211,"lon":119.94722,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

49

Xi an Huanghe Photovoltaic Technology Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Xi an Huanghe Photovoltaic Technology Co Ltd Xi an Huanghe Photovoltaic Technology Co Ltd Jump to: navigation, search Name Xi'an Huanghe Photovoltaic Technology Co Ltd Place Xi'an, Shaanxi Province, China Sector Solar Product China-based solar cell and module manufacturer. Coordinates 43.429695°, 12.935155° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.429695,"lon":12.935155,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

50

Advancing Solar Through Photovoltaic Technology Innovations | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Advancing Solar Through Photovoltaic Technology Innovations Advancing Solar Through Photovoltaic Technology Innovations Advancing Solar Through Photovoltaic Technology Innovations April 19, 2011 - 5:17pm Addthis At NREL's High-Intensity Pulse Solar Simulator, NREL's Keith Emery removes an array of multijunction solar cells produced by PV Incubator partner Solar Junction. The NREL instrument can produce the intensity of up to 90 suns. | Photo credit: Dennis Schroeder At NREL's High-Intensity Pulse Solar Simulator, NREL's Keith Emery removes an array of multijunction solar cells produced by PV Incubator partner Solar Junction. The NREL instrument can produce the intensity of up to 90 suns. | Photo credit: Dennis Schroeder David Moore Presidential Management Fellow, Office of Energy Efficiency & Renewable Energy

51

Concentrating Photovoltaics  

Science Conference Proceedings (OSTI)

Concentrating photovoltaics (CPV) are a promising alternative to flat-plate photovoltaics in high direct normal irradiance (DNI) environments. The technology’s basic operating characteristics offer significant upside compared with other solar technologies: higher system efficiencies of upwards of 30%+; higher capacity factors, generated through two-axis tracking, exceeding 30% in ideal locations; lower cellular degradation from heat compared to flat-plate PV; lower water requirements; and reduced footpri...

2010-11-19T23:59:59.000Z

52

Nanoprobes for Future Generations of Photovoltaics  

DOE Green Energy (OSTI)

In this Solar Program Review Meeting, we report on our most recent progress in scanning probe microscopy (SPM) and its application to photovoltaics. We have developed an SPM to be operated in combination with a scanning electron microscope (SEM) JEOL5800. The SPM platform is compatible with a helium closed-circuit cryostat and fully accessible to the optics of the cathodoluminescence (CL) detectors with which the JEOL5800 is equipped. Among the innovative modes of operation that the combination --and synergy-- of SPM and electron microscopy provides, we describe (i) measurements of the lateral electron transport based on scanning tunneling microscopy (STM) and atomic force microscopy (AFM); (ii) scanning tunneling luminescence (STL); (iii) electroluminescence mapping; and (iv) near-field cathodoluminescence.

Romero, M. J.; Jiang, C.-S.; Moutinho, H. R.; Al-Jassim, M. M.

2005-11-01T23:59:59.000Z

53

Solar Photovoltaics Expanding Electric Generation Options  

Science Conference Proceedings (OSTI)

EPRI and others have demonstrated that a broad portfolio of cost-competitive supply technologies will be needed to satisfy the world's rising demands for energy while meeting climate policy and other societal objectives. Solar energy is a particularly attractive renewable energy option because it is well distributed and abundant over most of the earth's surface. This White Paper reviews the status of PV technology and markets, the potential for evolutionary and revolutionary technology advances, the iss...

2007-12-21T23:59:59.000Z

54

Photovoltaics  

Energy.gov (U.S. Department of Energy (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.

55

High density photovoltaic  

DOE Green Energy (OSTI)

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

Haigh, R.E.; Jacobson, G.F.; Wojtczuk, S. [Spire Corp., Bedford, MA (United States)

1997-10-14T23:59:59.000Z

56

A survey of thin-film solar photovoltaic industry & technologies  

E-Print Network (OSTI)

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

Grama, Sorin

2007-01-01T23:59:59.000Z

57

Module Handbook Specialisation Photovoltaics  

E-Print Network (OSTI)

#12;Specialisation Photovoltaics, University of Northumbria Module 1/Photovoltaics: PHOTOVOLTAIC CELL AND MODULE TECHNOLOGY Module name: PHOTOVOLTAIC CELL AND MODULE TECHNOLOGY Section EUREC · Chemistry · Physics Target learning outcomes The module Photovoltaic Cell and Module Technology teaches

Habel, Annegret

58

Photovoltaic Manufacturing Technology, Phase 1, Final report  

DOE Green Energy (OSTI)

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

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

1991-12-01T23:59:59.000Z

59

2009 Concentrating Photovoltaic Solar Technology Assessment  

Science Conference Proceedings (OSTI)

This report investigates manufacturers of concentrating photovoltaic (CPV) systems with a special emphasis on companies that may be ready to deploy one or more 50-MW systems by 2012. The report has three main sections: Detailed profiles of 10 companies that appear likely to be able to field utility-scale deployments by 2012 A market study and forecast for CPV over the period 2012–2020 An appendix, listing contacts and other information about the dozens of CPV vendors that were not included in the detail...

2010-04-13T23:59:59.000Z

60

Photovoltaic Manufacturing Technology report, Phase 1  

DOE Green Energy (OSTI)

This report describes subcontracted research by Spectrolab, Inc., to address tasks outlined in the National Renewable Energy Laboratory's (NREL) Letter of solicitation RC-0-10057. These tasks include the potential of making photovoltaics (PV) a more affordable energy source, as set forth in the goal of the PVMaT project. Spectrolab believes that the DOE cost goals can be met using three different types of cells: (1) silicon concentrator cells, (2) high efficiency GaAs concentrator cells, and (3) mechanically stacked multijunction cells.

Mason, A.V.; Lillington, D.R.

1992-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Generating Hydrogen through Water Electrolysis using Concentrator Photovoltaics  

Science Conference Proceedings (OSTI)

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

McConnell, R.; Thompson, J.

2005-01-01T23:59:59.000Z

62

NREL: Photovoltaics Research - Science and Technology Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

Science and Technology Facility Science and Technology Facility Photo of the Science and Technology Facility (S&TF) at NREL. NREL's Science and Technology Facility (S&TF) has a sustainable and energy efficient design and will support solar cell, thin film, and nanostructure research. Solar cell, thin film, and nanostructure research are conducted in our Science and Technology Facility (S&TF) with the benefits of a forty percent reduction in energy use compared to standard laboratory buildings; energy recovery for ventilation in laboratories; and functional and flexible laboratory space. Designed specifically to reduce time delays associated with transferring technology to industry, the S&TF's 71,000 square feet is a multi-level facility of laboratory space, office space, and lobby connected by an

63

Status Assessment of Cadmium Telluride Photovoltaic Technology  

Science Conference Proceedings (OSTI)

Thin-film cadmium telluride (CdTe) solar cells are the basis of a potentially significant technology for commercial solar-energy production. This report provides a description of laboratory- and commercial-scale CdTe thin-film technologies and their status with respect to both present performance and understanding of ultimate technology limitations. Small laboratory-scale cells have achieved efficiencies over 16%, while larger monolithic thin-film modules have demonstrated over 11% efficiency and long-te...

2004-01-12T23:59:59.000Z

64

Lessons Learned from the Photovoltaic Manufacturing Technology...  

NLE Websites -- All DOE Office Websites (Extended Search)

and First Solar (CdTe), are now considered world leaders in their technologies in terms of conversion efficiencies and production. These companies have experienced rapid...

65

Solar Photovoltaic Technologies - Energy Innovation Portal  

In order to better compete with fossil fuels, researchers are attempting to create a second generation of cheaper, more efficient solar cells.

66

Development and evaluation of sealing technologies for photovoltaic panels  

DOE Green Energy (OSTI)

This report summarizes the results of a study to develop and evaluate low temperature glass sealing technologies for photovoltaic applications. This work was done as part of Cooperative Research and Development Agreement (CRADA) No. SC95/01408. The sealing technologies evaluated included low melting temperature glass frits and solders. Because the glass frit joining required a material with a melting temperature that exceeded the allowable temperature for the active elements on the photovoltaic panels a localized heating scheme was required for sealing the perimeter of the glass panels. Thermal and stress modeling were conducted to identify the feasibility of this approach and to test strategies designed to minimize heating of the glass panel away from its perimeter. Hardware to locally heat the glass panels during glass frit joining was designed, fabricated, and successfully tested. The same hardware could be used to seal the glass panels using the low temperature solders. Solder adhesion to the glass required metal coating of the glass. The adhesion strength of the solder was dependent on the surface finish of the glass. Strategies for improving the polyisobutylene (PIB) adhesive currently being used to seal the panels and the use of Parylene coatings as a protective sealant deposited on the photovoltaic elements were also investigated. Starting points for further work are included.

Glass, S.J.; Hosking, F.M.; Baca, P.M. [and others

1998-07-01T23:59:59.000Z

67

Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies  

E-Print Network (OSTI)

and V.U. Ho?mann. Photovoltaic Solar Energy Gen- eration.e?ciency for photovoltaic solar energy collections, reviewedenergy sources, the manufacturing of solar cells and photovoltaic

Wang, Chunhua

2011-01-01T23:59:59.000Z

68

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design de...

Sulc, Petr; Backhaus, Scott; Chertkov, Michael

2010-01-01T23:59:59.000Z

69

Emerging photovoltaic module technologies at PVUSA: A five-year assessment  

DOE Green Energy (OSTI)

The Photovoltaics for Utility Scale Applications (PVUSA) project tests two types of photovoltaic systems: new modules fielded as 20-kW Emerging Module Technology (EMT) arrays, and more mature technologies fielded as 20- to 500-kW turnkey Utility Scale (US) systems. This report summarizes experiences of the PVUSA project in operating the first six 20-kW EMT photovoltaic systems. Five systems are installed at Davis, California, and one at Kihei, Hawaii. Products selected for testing and demonstration were judged to have potential for significant technical advancement or reduction in manufacturing cost. Features leading to selection of each system and findings over the average 5 years of operation are compared in the report. Factory product qualification test experiences along with field acceptance test results are documented. Evaluation includes a broad range of performance parameters, including long-term efficiency, seasonal generation patterns, and maintenance. While some of the arrays have operated as well as any commercial system, others have fared poorly. Throughout the procurement and operation of these precommercial PV modules, PVUSA has provided feedback to vendors, critical for product improvement. The data and evaluations in this report will be of further benefit to manufacturers and provide general comparative information on a variety of technologies to researchers in utilities, government, and industry alike.

Townsend, T.

1995-04-01T23:59:59.000Z

70

The photovoltaic manufacturing technology project: A government/industry partnership  

DOE Green Energy (OSTI)

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

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

1991-12-01T23:59:59.000Z

71

The photovoltaic manufacturing technology project: A government/industry partnership  

DOE Green Energy (OSTI)

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

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

1991-12-01T23:59:59.000Z

72

Optimal Sizing of a Stand-alone Wind/Photovoltaic Generation Unit using Particle Swarm Optimization  

Science Conference Proceedings (OSTI)

A hybrid wind/photovoltaic generation system is designed to supply power demand. The aim of this design is minimization of the overall cost of the generation scheme over 20 years of operation. Full demand supply is modeled as constraint for optimization ... Keywords: genetic algorithm, optimal sizing, particle swarm optimization, photovoltaic, wind energy

Ali Kashefi Kaviani; Hamid Reza Baghaee; Gholam Hossein Riahy

2009-02-01T23:59:59.000Z

73

Photovoltaic concentrator technology development project. Sixth project integration meeting  

DOE Green Energy (OSTI)

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

None

1980-10-01T23:59:59.000Z

74

Local control of reactive power by distributed photovoltaic generators  

SciTech Connect

High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the real power generated by the PVs. Using one adjustable parameter per circuit, we balance the requirements on power quality and desire to minimize thermal losses. Numerical analysis of two exemplary systems, with comparable total PV generation albeit a different spatial distribution, show how to adjust the optimization parameter depending on the goal. Overall, this local scheme shows excellent performance; it's capable of guaranteeing acceptable power quality and achieving significant saving in thermal losses in various situations even when the renewable generation in excess of the circuit own load, i.e. feeding power back to the higher-level system.

Chertkov, Michael [Los Alamos National Laboratory; Turitsyn, Konstantin [Los Alamos National Laboratory; Sulc, Petr [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

75

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

SciTech Connect

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

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

2007-06-04T23:59:59.000Z

76

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

SciTech Connect

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

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

2007-06-04T23:59:59.000Z

77

Program on Technology Innovation: Central Station Solar Photovoltaic, Linear Fresnel, and Dish-Engine Technology Assessment  

Science Conference Proceedings (OSTI)

This Technology Innovation (TI) project, performed in conjunction with an EPRI feasibility study for a 50 to 500 megawatt (MW) central station solar power (CSSP) plant to be developed in New Mexico by mid-2010, surveyed and characterized photovoltaic (PV), linear Fresnel, and dish-engine solar technology options. The overall feasibility study also assessed the status of parabolic trough and central receiver solar technologies.

2008-05-06T23:59:59.000Z

78

Tunable Nanocrystalline CZTS for Solar Photovoltaics with No Required Annealing  

Thin-film solar cells are expected to replace the current first generation of solar photovoltaic technology due to their lower manufacturing cost and increased electrical output. Nanocrystal cells, one of the second generation of solar photovoltaics, ...

79

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

E-Print Network (OSTI)

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

Wright, Janelle N., 1978-

2003-01-01T23:59:59.000Z

80

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design decision that weighs on the speed and quality of communication required is whether the control should be centralized or distributed (i.e. local). In general, we find that local control schemes are capable for maintaining voltage within acceptable bounds. We consider the benefits of choosing different local variables on which to control and how the control system can be continuously tuned between robust voltage control, suitable for daytime operation when circuit conditions can change rapidly, and loss minimization better suited for nighttime operation.

Petr Sulc; Konstantin Turitsyn; Scott Backhaus; Michael Chertkov

2010-08-04T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Overview of the Photovoltaic Manufacturing Technology (PVMaT) project  

SciTech Connect

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

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

1993-08-01T23:59:59.000Z

82

List of Other Distributed Generation Technologies Incentives | Open Energy  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 123 Other Distributed Generation Technologies Incentives. CSV (rows 1 - 123) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Alternative Energy Portfolio Standard (Pennsylvania) Renewables Portfolio Standard Pennsylvania Investor-Owned Utility Retail Supplier Building Insulation Ceiling Fan

83

Experience Scaling Up Manufacturing of Emerging Photovoltaic Technologies  

DOE Green Energy (OSTI)

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

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

2007-01-01T23:59:59.000Z

84

The Photovoltaic Manufacturing Technology Project: Phase 1 subcontractors  

DOE Green Energy (OSTI)

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

Not Available

1992-07-01T23:59:59.000Z

85

The Photovoltaic Manufacturing Technology Project: Phase 1 subcontractors  

DOE Green Energy (OSTI)

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

Not Available

1992-07-01T23:59:59.000Z

86

Storing unsteady energy, like photovoltaically generated electric energy, as potential energy  

E-Print Network (OSTI)

A proposal to store unsteady energy in potential energy via lifting masses with a rough quantitative overview. Some applications and methods to harvest the potential energy are also given. A focus is put on photovoltaically generated energy.

Kutz, Nadja

2012-01-01T23:59:59.000Z

87

Storing unsteady energy, like photovoltaically generated electric energy, as potential energy  

E-Print Network (OSTI)

A proposal to store unsteady energy in potential energy via lifting masses with a rough quantitative overview. Some applications and methods to harvest the potential energy are also given. A focus is put on photovoltaically generated energy.

Nadja Kutz

2012-01-30T23:59:59.000Z

88

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

E-Print Network (OSTI)

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

Bottaro, Drew

1981-01-01T23:59:59.000Z

89

Program on Technology Innovation: High Efficiency Photovoltaic Research at the Institute of Research and Development on Photovoltaic Energy (IRDEP), 2012  

Science Conference Proceedings (OSTI)

This report describes the advances of the High-Efficiency Photovoltaic (HEPV) Program during 2012. The report focuses on technical advances in the hot-carrier solar-cell program that address compounds with improved photovoltaic (PV) energy-conversion potential. The basic idea of hot-carrier devices is to use a combination of materials and device structures that can tap the thermal power co-generated with the usual PV power harvested in conventional devices. A part of this thermal power, all lost in ...

2013-11-04T23:59:59.000Z

90

Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies  

E-Print Network (OSTI)

1.1 Solar Energy . . . . . . . . .on ?uorescent glass-?lms. Solar Energy Materials and SolarHo?mann. Photovoltaic Solar Energy Gen- eration. Optical

Wang, Chunhua

2011-01-01T23:59:59.000Z

91

DOE to Provide Up to $17.6 Million for Solar Photovoltaic Technology  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Up to $17.6 Million for Solar Photovoltaic Up to $17.6 Million for Solar Photovoltaic Technology Development DOE to Provide Up to $17.6 Million for Solar Photovoltaic Technology Development September 29, 2008 - 3:43pm Addthis WASHINGTON - The U.S. Department of Energy (DOE) today announced up to $17.6 million, subject to annual appropriations, for six early stage photovoltaic (PV) module incubator projects that focus on the initial manufacturing of advanced solar PV technologies. Including the cost share from industry, which will be at least 20 percent, the total research investment is expected to reach up to $35.4 million. These projects support President Bush's Solar America Initiative, which aims to make solar energy cost-competitive with conventional forms of electricity by 2015. Increasing the use of alternative and clean energy technologies such as

92

Simulation of a green wafer fab featuring solar photovoltaic technology and storage system  

Science Conference Proceedings (OSTI)

A semiconductor wafer fab requires a significant amount of energy to maintain its daily operations. Solar photovoltaics (PV) is a clean and renewable technology that can be potentially used to power large wafer fabs. There exist some critical factors ...

Leann Sanders; Stephanie Lopez; Greg Guzman; Jesus Jimenez; Tongdan Jin

2012-12-01T23:59:59.000Z

93

DOE to Provide Up to $17.6 Million for Solar Photovoltaic Technology  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE to Provide Up to $17.6 Million for Solar Photovoltaic DOE to Provide Up to $17.6 Million for Solar Photovoltaic Technology Development DOE to Provide Up to $17.6 Million for Solar Photovoltaic Technology Development September 29, 2008 - 3:43pm Addthis WASHINGTON - The U.S. Department of Energy (DOE) today announced up to $17.6 million, subject to annual appropriations, for six early stage photovoltaic (PV) module incubator projects that focus on the initial manufacturing of advanced solar PV technologies. Including the cost share from industry, which will be at least 20 percent, the total research investment is expected to reach up to $35.4 million. These projects support President Bush's Solar America Initiative, which aims to make solar energy cost-competitive with conventional forms of electricity by 2015.

94

Program on Technology Innovation: Distributed Photovoltaic Power Applications for Utilities  

Science Conference Proceedings (OSTI)

Emerging PV technology brings significant opportunities for many stakeholders including electric utilities, electric customers, energy-service providers and PV equipment vendors. The opportunities for utilities range from owning and deploying various PV generation resources and related products to incentivizing other owners to install PV systems and technology that provide benefits to the power system. This technical update describes PV power system concepts that utilities may want to consider as they pl...

2009-12-30T23:59:59.000Z

95

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

E-Print Network (OSTI)

Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources, fuel cells and photovoltaics, produce direct current (DC). Currently, power system infrastructures that wish to incorporate fuel cells and photovoltaics must first convert the DC power produced

Tolbert, Leon M.

96

Interface and Electrode Engineering for Next-Generation Organic Photovoltaic Cells: Final Technical Report, March 2005 - August 2008  

DOE Green Energy (OSTI)

The objective of this project was to enable next-generation, efficient, easily manufacturable, and durable organic photovoltaics through interface and electrode engineering.

Mason, T. O.; Chang, R. P. H.; Freeman, A. J.; Marks, T. J.; Poeppelmeier, K. R.

2008-11-01T23:59:59.000Z

97

Cost calculation algorithm for stand-alone photovoltaic systems  

Science Conference Proceedings (OSTI)

Photovoltaics are the technology that generates direct current (DC) electrical power measured in watts or kilowatts from semiconductors when they are illuminated by photons. Photovoltaics are the technological symbol for a future sustainable energy supply ... Keywords: PV system design, life cycle cost, photovoltaic cell, present worth, software, unit energy cost

Irfan Güney; Nevzat Onat; Gökhan Koçyi?it

2009-07-01T23:59:59.000Z

98

Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies  

E-Print Network (OSTI)

dyes. Photovoltaic (PV) solar cells are used to attach atis fa- vored by the silicon PV solar cells for the LSC PVemission properties for PV solar cells. We studied e?ect of

Wang, Chunhua

2011-01-01T23:59:59.000Z

99

Protection and Control for Grid Connected Photovoltaic Power Generation System Based on Instantaneous Power Theory  

Science Conference Proceedings (OSTI)

Reliable protection and reasonable control run an important role in grid connected PV power generation system. The detection and calculation of real and reactive power are the bases of many inverter resident passive and active islanding detection method ... Keywords: Distributed generation, photovoltaic system, grid connected, protection and control, power theory

Fei Wang; Chengcheng Zhang

2009-05-01T23:59:59.000Z

100

Quadrennial Technology Review's Alternative Generation Workshop...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technology Review's Alternative Generation Workshop Slides Preliminary Slides for Alternative Generation Workshop including Carbon Capture and Sequestration, Nuclear Power,...

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

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

DOE Green Energy (OSTI)

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

Basso, T. S.

2008-05-01T23:59:59.000Z

102

High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems  

DOE Green Energy (OSTI)

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

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

2007-06-01T23:59:59.000Z

103

Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells  

E-Print Network (OSTI)

to Third-Generation Photovoltaic Solar Cells A. J. Nozik,*,, M. C. Beard, J. M. Luther, M. Law,§ R. J. Applications: Quantum Dot Solar Cells 6884 6.1. Quantum Dot Solar Cell Configurations 6885 6.1.1. Photoelectrodes Composed of Quantum Dot Arrays 6885 6.1.2. Quantum Dot-Sensitized Nanocrystalline TiO2 Solar Cells

George, Steven C.

104

Thin Film Materials and Processing Techniques for a Next Generation Photovoltaic Device: Cooperative Research and Development Final Report, CRADA Number CRD-12-470  

DOE Green Energy (OSTI)

This research extends thin film materials and processes relevant to the development and production of a next generation photovoltaic device.

van Hest, M.

2013-08-01T23:59:59.000Z

105

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

E-Print Network (OSTI)

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,

Mariani, Giacomo

2013-01-01T23:59:59.000Z

106

Free Carrier Generation in Fullerene Acceptors and Its Effect on Polymer Photovoltaics  

E-Print Network (OSTI)

Free Carrier Generation in Fullerene Acceptors and Its Effect on Polymer Photovoltaics George F than 2.35 eV by bulk C60 produces free charge carriers at room temperature. We find that not only, but also that the presence of these free carriers has significant implications for the modeling

McGehee, Michael

107

Apparatus for mounting photovoltaic power generating systems on buildings  

DOE Patents (OSTI)

Rectangular photovoltaic (PV) modules are mounted on a building roof by mounting stands that are distributed in rows and columns. Each stand comprises a base plate and first and second different height brackets attached to opposite ends of the base plate. Each first and second bracket comprises two module-support members. One end of each module is pivotally attached to and supported by a first module-support member of a first bracket and a second module-support member of another first bracket. At its other end each module rests on but is connected by flexible tethers to module-support members of two different second brackets. The tethers are sized to allow the modules to pivot up away from the module-support members on which they rest to a substantially horizontal position in response to wind uplift forces.

Russell, Miles C. (Lincoln, MA)

2009-08-18T23:59:59.000Z

108

Technical Assessment Guide (TAG) -- Power Generation and Storage Technology Options: 2010 Topics  

Science Conference Proceedings (OSTI)

The EPRI Technical Assessment Guide (TAG )151Power Generation and Storage Technology Options helps energy company decision makers optimize capital investments in the power generation and energy storage infrastructure. The 2010 TAG has been significantly enhanced to reflect current market conditions and technology trends, with cost and performance updates for pulverized coal (PC), large combustion turbine (CT) and combustion turbine combined-cycle (CTCC), nuclear, solar thermal (ST), photovoltaic (PV), b...

2010-12-21T23:59:59.000Z

109

Technical Assessment Guide (TAG) -- Power Generation and Storage Technology Options: 2011 Update  

Science Conference Proceedings (OSTI)

The EPRI Technical Assessment Guide (TAG) Power Generation and Storage Technology Options provides cost and performance data and analysis for energy company decision makers to optimize capital investments in the power generation and energy storage infrastructure. The 2011 TAG has been significantly enhanced to reflect current market conditions and technology trends, with cost and performance updates for pulverized coal (PC), large combustion turbine (CT), nuclear, solar thermal (ST), photovoltaic (PV), b...

2011-12-30T23:59:59.000Z

110

Other Distributed Generation Technologies | Open Energy Information  

Open Energy Info (EERE)

Technologies Jump to: navigation, search TODO: Add description List of Other Distributed Generation Technologies Incentives Retrieved from "http:en.openei.orgw...

111

Program on Technology Innovation: Very High Efficiency Photovoltaics Research, 2009 Update  

Science Conference Proceedings (OSTI)

This is the second interim annual summary report on the collaborative activities of CNRS and EDF RD to advance the state of high-efficiency photovoltaics (PV). This activity is principally concerned with basic research to enhance longer-term prospects of very high efficiency PV, but it also includes possible nearer-term outcomes of improved conversion efficiency for existing technologies.

2010-02-19T23:59:59.000Z

112

Chapter 1.03: Solar Photovoltaics Technology: No Longer an Outlier  

Science Conference Proceedings (OSTI)

The status and future technology, market, and industry opportunities for solar photovoltaics are examined and discussed. The co-importance of both policy and technology investments for the future markets and competitiveness of this solar approach is emphasized. This paper underscores the technology side, with a comprehensive overview and insights to technical, policy, market, industry and other investments needed to tip photovoltaics to its next level of contribution as a significant clean-energy partner in the world energy economy. The requirement to venture from near-term and evolutionary approaches into disruptive and revolutionary technology pathways is argued for our needs in the mid-term (the next 10-15 years) and the long-term (beyond the first quarter of this century).

Kazmerski, L. L.

2012-01-01T23:59:59.000Z

113

Flat-Plate Photovoltaic Performance Testing at the Solar Technology Acceleration Center (SolarTAC)  

Science Conference Proceedings (OSTI)

The flat-plate photovoltaic (PV) performance testing project at the Solar Technology Acceleration Center (SolarTAC) is a multi-year, data-driven effort to provide unbiased field testing of a variety of commercial-scale solar PV systems under different environmental and seasonal conditions. Its core aim is to assess and characterize the operation of both well-established as well as less mature PV module technologies to ultimately inform future PV product investment decisions by electric utilities and ...

2013-10-30T23:59:59.000Z

114

Program on Technology Innovation: Integrated Generation Technology Options  

Science Conference Proceedings (OSTI)

This report provides a condensed, public-domain reference for current cost, performance, and technology status data for eight central-station power generation technologies. In this report, central station is defined as >100 MW with the exception of some renewable-resource-based technologies. In addition to fossil- and nuclear-based technologies, four renewable-resource-based technologies are included. This report addresses the principal technology options for utility-scale power generation.

2011-06-30T23:59:59.000Z

115

Geothermal Technologies Office: Electricity Generation  

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

and Renewable Energy EERE Home | Programs & Offices | Consumer Information Geothermal Technologies Office Search Search Help Geothermal Technologies Office HOME ABOUT...

116

Characterization of 3D Photovoltaics  

Science Conference Proceedings (OSTI)

... supporting improved processing and design of Second Generation (thin film) and Third Generation (nanostructured) photovoltaic devices. ...

2012-10-02T23:59:59.000Z

117

Polymer Hybrid Photovoltaics for Inexpensive Electricity Generation: Final Technical Report, 1 September 2001--30 April 2006  

DOE Green Energy (OSTI)

The project goal is to understand the operating mechanisms underlying the performance of polymer hybrid photovoltaics to enable the development of a photovoltaic with a maximum power conversion efficiency over cost ratio that is significantly greater than current PV technologies. Plastic or polymer-based photovoltaics can have significant cost advantages over conventional technologies in that they are compatible with liquid-based plastic processing and can be assembled onto plastic under atmospheric conditions (ambient temperature and pressure) using standard printing technologies, such as reel-to-reel and screen printing. Moreover, polymer-based PVs are lightweight, flexible, and largely unbreakable, which make shipping, installation, and maintenance simpler. Furthermore, a numerical simulation program was developed (in collaboration with IBM) to fully simulate the performance of multicomponent polymer photovoltaic devices, and a manufacturing method was developed (in collaboration with Add-vision) to inexpensively manufacture larger-area devices.

Carter, S. A.

2006-07-01T23:59:59.000Z

118

Polycrystalline thin-film technology: Recent progress in photovoltaics  

DOE Green Energy (OSTI)

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

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

1991-12-01T23:59:59.000Z

119

Electric and Magnetic Field Exposure Levels (0 to 3000 Hz) near Residential Photovoltaic Energy Generation Facilities  

Science Conference Proceedings (OSTI)

Electric and magnetic field levels associated with two residential photovoltaic energy generation facilities were characterized in this study. This measurement evaluation included static (direct current [DC]) magnetic fields and power-frequency alternating current (AC) electric and magnetic fields (up to 3,000 Hz).The major source of DC and AC magnetic fields associated with a residential solar facility is the power inverter that converts DC to AC electricity. In close proximity to one ...

2012-11-01T23:59:59.000Z

120

Tapping into the sun: Today`s applications of photovoltaic technology  

DOE Green Energy (OSTI)

Today solar-generated electricity serves people living in the most isolated spots on earth and in the center of our biggest cities. First used in the space program, PV systems are now generating electricity to pump water, light up the night, activate switches, charge batteries, supply the electric utility grid, and more. Whether you are a homeowner, planner, architect, or just someone who pays electric utility bills, photovoltaics may already tough your life in some way.

Not Available

1994-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Low Cost Production of InGaN for Next-Generation Photovoltaic Devices  

SciTech Connect

The goal of this project is to develop a low-cost and low-energy technology for production of photovoltaic devices based on InGaN materials. This project builds on the ongoing development by Structured Materials Industries (SMI), of novel thin film deposition technology for Group III-Nitride materials, which is capable of depositing Group-III nitride materials at significantly lower costs and significantly lower energy usage compared to conventional deposition techniques. During this project, SMI demonstrated deposition of GaN and InGaN films using metalorganic sources, and demonstrated compatibility of the process with standard substrate materials and hardware components.

Nick M. Sbrockey, Shangzhu Sun, Gary S. Tompa,

2012-07-09T23:59:59.000Z

122

Program on Technology Innovation: Integrated Generation Technology Options  

Science Conference Proceedings (OSTI)

The EPRI Integrated Generation Technology Options is intended to provide a snapshot of current cost and performance and technology trends for central electricity generation stations (>50 MW). This document is designed to help with information on the current options in power generation infrastructure capital investments. This 2008 Integrated Generation Technology Options draws from the results of the 2007 TAG studies with relevant current updates. However, while the TAG addresses about 20 different Power ...

2008-11-30T23:59:59.000Z

123

Photovoltaic Manufacturing Technology (PVMaT) improvements for ENTECH's concentrator module  

DOE Green Energy (OSTI)

This final technical report documents ENTECH's Phase 1 contract with Photovoltaic Manufacturing Technology (PVMaT) project. Under this project we prepared a detailed description of our current manufacturing process for making our unique linear Fresnel lens photovoltaic concentrator modules. In addition, we prepared a detailed description of an improved manufacturing process, which will simultaneously increase module production rates, enhance module quality, and substantially reduce module costs. We also identified potential problems in implementing the new manufacturing process, and we proposed solutions to these anticipated problems. Before discussing the key results of our program, however, we present a brief description of our unique photovoltaic technology. The key conclusion of our PVMAT Phase 1 study is that our module technology, without further breakthroughs, can realistically meet the near-term DOE goal of 12 cents/kWh levelized electricity cost, provided that we successfully implement the new manufacturing process at a production volume of at least 10 megawatts per year. The key recommendation from our Phase 1 study is to continue our PVMaT project into Phase 2A, which is directed toward the actual manufacturing technology development required for our new module production process. 15 refs.

O'Neill, M.J.; McDanal, A.J.; Perry, J.L.; Jackson, M.C.; Walters, R.R. (ENTECH, Inc., Dallas-Fort Worth Airport, TX (United States))

1991-11-01T23:59:59.000Z

124

Next Generation Print-based Manufacturing for Photovoltaics and Solid State Lighting  

SciTech Connect

For the grand challenge of reducing our energy and carbon footprint, the development of renewable energy and energy efficient technologies offer a potential solution. Energy technologies can reduce our dependence on foreign oil as well as the energy consumed by the petroleum industry, the leading consumer of energy by a U.S. industry sector. Nonetheless, the manufacturing processes utilized to manufacture equipment for alternative energy technologies often involve energy-intensive processes. This undermines some of the advantages to moving to 'green' technologies in the first place. Our answer to the Industrial Technology Program's (ITP) Grand Challenge FOA was to develop a transformational low cost manufacturing process for plastic-based photovoltaics that will lower by over 50% both energy consumption and greenhouse emissions and offer a return-of-investment of over 20%. We demonstrated a Luminescent Solar Concentrator fabricated on a plastic acrylic substrate (i.e. no glass) that increases the power output of the PV cell by 2.2x with a 2% power efficiency as well as an LSC with a 7% power efficiency that increased the power output from the PV cells by 35%. S large area 20-inch x 60-inch building-integrated photovoltaic window was fabricated using contract manufacturing with a 4% power efficiency which improved the power output of the PV cell by over 50%. In addition, accelerated lifetimes of the luminescent material demonstrate lifetimes of 20-years.

Sue A. Carter

2012-09-07T23:59:59.000Z

125

Photovoltaic system planning tool with internet access  

Science Conference Proceedings (OSTI)

This paper presents advanced planning models integrated into a GIS-computational tool, based on a Geographic Information System, for evaluating solar energy resources, selecting the most suitable photovoltaic technology, and calculating the cost associated ... Keywords: distributed generation planning, internet GIS services, photovoltaic systems

I. J. Ramírez-Rosado; P. J. Zorzano-Santamaría; L. A. Fernández-Jiménez; E. García-Garrido

2007-01-01T23:59:59.000Z

126

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

NLE Websites -- All DOE Office Websites (Extended Search)

Utility-Scale Concentrating Utility-Scale Concentrating Solar Power and Photovoltaics Projects: A Technology and Market Overview Michael Mendelsohn, Travis Lowder, and Brendan Canavan Technical Report NREL/TP-6A20-51137 April 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Utility-Scale Concentrating Solar Power and Photovoltaics Projects: A Technology and Market Overview Michael Mendelsohn, Travis Lowder, and Brendan Canavan Prepared under Task No. SM10.2442

127

Durability of Poly(Methyl Methacrylate) Lenses Used in Concentrating Photovoltaic Technology (Revised) (Presentation)  

DOE Green Energy (OSTI)

Concentrating photovoltaic (CPV) technology recently gained interest based on its expected low levelized cost of electricity, high efficiency, and scalability. Many CPV systems employ Fresnel lenses composed of poly(methyl methacrylate) (PMMA) to obtain a high optical flux density on the cell. The optical and mechanical durability of these lenses, however, is not well established relative to the desired surface life of 30 years. Our research aims to quantify the expected lifetime of PMMA in key market locations (FL, AZ, and CO).

Miller, D. C.; Carloni, J. D.; Pankow, J. W.; Gjersing, E. L.; To, B.; Packard, C. E.; Kennedy, C. E.; Kurtz, S. R.

2012-01-01T23:59:59.000Z

128

Program on Technology Innovation: Very High Efficiency Photovoltaics Research at IRDEP  

Science Conference Proceedings (OSTI)

This is an interim report on the collaborative activities of Centre National de la Recherche Scientifique (CNRS) and Electricité de France (EDF) R&D to advance the state of high-efficiency photovoltaics (PV). These efforts are principally concerned with basic research to enhance the longer-term prospects of very high-efficiency PV, but they may also produce nearer-term outcomes in the shape of improved conversion efficiency for existing technologies.

2009-03-31T23:59:59.000Z

129

Photovoltaic energy program overview, fiscal year 1991. Programs in utility technologies  

SciTech Connect

The Photovoltaics Program Plan, FY 1991--FY 1995 builds on the accomplishments of the past 5 years and broadens the scope of program activities for the future. The previous plan emphasized materials and PV cell research. Under the balanced new plan, the PV Program continues its commitment to strategic research and development (R&D) into PV materials and processes, while also beginning work on PV systems and helping the PV industry encourage new markets for photovoltaics. A major challenge for the program is to assist the US PV industry in laying the foundation for at least 1000 MW of installed PV capacity in the United States and 500 MW internationally by 2000. As part of the new plan, the program expanded the scope of its activities in 1991. The PV Program is now addressing many new aspects of developing and commercializing photovoltaics. It is expanding activities with the US PV industry through the PV Manufacturing Technology (PVMaT) project, designed to address US manufacturers` immediate problems; providing technical assistance to potential end users such as electric utilities; and the program is turning its attention to encouraging new markets for PV. In 1991, for example, the PV Program initiated a new project with the PV industry to encourage a domestic market for PV applications in buildings and began cooperative ventures to support other countries such as Mexico to use PV in their rural electrification programs. This report reviews some of the development, fabrication and manufacturing advances in photovoltaics this year.

1992-02-01T23:59:59.000Z

130

Low-Cost High-Concentration Photovoltaic Systems for Utility Power Generation  

DOE Green Energy (OSTI)

Under DOE's Technology Pathway Partnership (TPP) program, Amonix, Inc. developed a new generation of high-concentration photovoltaic systems using multijunction technology and established the manufacturing capacity needed to supply multi-megawatt power plants buing using the new Amonix 7700-series solar energy systems. For this effort, Amonix Collaborated with a variety of suppliers and partners to complete project tasks. Subcontractors included: Evonik/Cyro; Hitek; the National Renewable Energy Laboratory (NREL); Raytech; Spectrolab; UL; University of Nevada, Las Vegas; and TUV Rheinland PTL. The Amonix TPP tasks included: Task 1: Multijunction Cell Optimization for Field Operation, Task 2: Fresnel Lens R&D, Task 3: Cell Package Design & Production, Task 4: Standards Compliance and Reliability Testing, Task 5: Receiver Plate Production, Task 6: MegaModule Performance, Task 7: MegaModule Cost Reduction, Task 8: Factory Setup and MegaModule Production, Task 9: Tracker and Tracking Controller, Task 10: Installation and Balance of System (BOS), Task 11: Field Testing, and Task 12: Solar Advisor Modeling and Market Analysis. Amonix's TPP addressed nearly the complete PV value chain from epitaxial layer design and wafer processing through system design, manufacturing, deployment and O&M. Amonix has made progress toward achieving these reduced costs through the development of its 28%+ efficient MegaModule, reduced manufacturing and installation cost through design for manufacturing and assembly, automated manufacturing processes, and reduced O&M costs. Program highlights include: (1) Optimized multijunction cell and cell package design to improve performance by > 10%; (2) Updated lens design provided 7% increased performance and higher concentration; (3) 28.7% DC STC MegaModule efficiency achieved in Phase II exceeded Phase III performance goal; (4) New 16' focal length MegaModule achieved target materials and manufacturing cost reduction; (5) Designed and placed into production 25 MW/yr manufacturing capacity for complete MegaModules, including cell packages, receiver plates, and structures with lenses; (6) Designed and deployed Amonix 7700 series systems rated at 63 kW PTC ac and higher. Based on an LCOE assessment using NREL's Solar Advisor Model, Amonix met DOE's LCOE targets: Amonix 2011 LCOE 12.8 cents/kWh (2010 DOE goal 10-15); 2015 LCOE 6.4 cents/kWh (2015 goal 5-7) Amonix and TPP participants would like to thank the U.S. Department of Energy Solar Energy Technology Program for funding received under this program through Agreement No. DE-FC36-07GO17042.

McConnell, R.; Garboushian, V.; Gordon, R.; Dutra, D.; Kinsey, G.; Geer, S.; Gomez, H.; Cameron, C.

2012-03-31T23:59:59.000Z

131

Assessment of the technology transfer potential of federal photovoltaic power system applications to commercial markets. Final report  

DOE Green Energy (OSTI)

An assessment of the market potential of photovoltaic power supplies is presented. Markets analyzed include the water pumping market, marine navigational aids, cathodic protection, remote general power sources, telecommunications, air navigational aids, mobile generator market, instrumentation, and utility connected applications.

Jaras, T F

1979-06-01T23:59:59.000Z

132

Learning and cost reductions for generating technologies in the national energy modeling system (NEMS)  

E-Print Network (OSTI)

other than distributed generation. The cost reductionsWind Solar Thermal Photovoltaic Distributed Generation-Base Distributed Generation-Peak D Vintage PLANT TYPE C

Gumerman, Etan; Marnay, Chris

2004-01-01T23:59:59.000Z

133

The Impact of Solar Photovoltaic Generation on Balancing Requirements in the Southern Nevada System  

Science Conference Proceedings (OSTI)

Abstract—The impact of integrating large-scale solar photovoltaic (PV) generation on the balancing requirements in terms of regulation and load-following requirements in the southern Nevada balancing area is evaluated. The “swinging door” algorithm and the “probability box” method developed by Pacific Northwest National Laboratory (PNNL) were used to quantify the impact of large PV generation on the balancing requirements of the system operations. The system’s actual scheduling, real-time dispatch and regulation processes were simulated. Different levels of distributed generation were also considered in the study. The impact of hourly solar PV generation forecast errors on regulation and load-following requirements was assessed. The sensitivity of balancing requirements with respect to real-time forecast errors of large PV generation was analyzed. Index Terms—Ancillary services, balancing requirements, load following, regulation, renewables integration, swinging door

Ma, Jian; Lu, Shuai; Hafen, Ryan P.; Etingov, Pavel V.; Makarov, Yuri V.; Chadliev, Vladimir

2012-05-07T23:59:59.000Z

134

Water Use in Electricity Generation Technologies  

Science Conference Proceedings (OSTI)

Water use is increasingly viewed as an important sustainability metric for electricity generation technologies. Most of the attention on the link between electricity generation and water use focuses on the water used in cooling thermoelectric power plants during operations. This is warranted given the size of these withdrawals; however, all electricity generation technologies, including those that do not rely on thermoelectric generation, use water throughout their life cycles. Each life cycle stage cont...

2012-05-23T23:59:59.000Z

135

Distributed Electrical Power Generation: Summary of Alternative Available Technologies  

E-Print Network (OSTI)

Approved for public release; distribution is unlimited. Prepared for U.S. Army Corps of Engineers Washington, DC 20314-1000ABSTRACT: The Federal government is the greatest consumer of electricity in the nation. Federal procurement and installation of higher efficiency energy sources promises many benefits, in terms of economy, employment, export, and environment. While distributed generation (DG) technologies offer many of the benefits of alternative, efficient energy sources, few DG systems can currently be commercially purchased “off the shelf, ” and complicated codes and standards deter potential users. Federal use of distributed generation demonstrates the technology, can help drive down costs, and an help lead the general public to accept a changing energy scheme. This work reviews and describes various distributed generation technologies, including fuel cells, microturbines, wind turbines, photovoltaic arrays, and Stirling engines. Issues such as fuel availability, construction considerations, protection controls are addressed. Sources of further information are provided. DISCLAIMER: The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents.

Sarah J. Scott; Franklin H. Holcomb; Nicholas M. Josefik; Sarah J. Scott; Franklin H. Holcomb; Nicholas M. Josefik

2003-01-01T23:59:59.000Z

136

Photovoltaic manufacturing technology, Phase 1. Final technical report, 1 May 1991--10 May 1991  

DOE Green Energy (OSTI)

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

Not Available

1992-10-01T23:59:59.000Z

137

Program on Technology Innovation: Integrated Generation Technology Options 2012  

Science Conference Proceedings (OSTI)

This report provides a condensed, public-domain reference for 2012 cost, performance, and technology status data for 10 central-station power-generation technologies, including fossil-, nuclear-, and renewable resource–based technologies. In this report, central station is defined as > 100 MW with the exception of some renewable resource–based technologies. This report addresses the principal technology options for utility-scale power ...

2013-02-19T23:59:59.000Z

138

Photovoltaic Subcontract Program  

DOE Green Energy (OSTI)

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.

Not Available

1993-03-01T23:59:59.000Z

139

Photovoltaics (Fact Sheet)  

DOE Green Energy (OSTI)

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

Not Available

2010-09-01T23:59:59.000Z

140

Photovoltaics (Fact Sheet)  

DOE Green Energy (OSTI)

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

Not Available

2011-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

CIS photovoltaic technology. Annual technical report, January 12, 1995--January 11, 1996  

DOE Green Energy (OSTI)

EPV`s overall strategy in developing CIGS photovoltaic technology has been to define and construct a flexible set of large area vacuum deposition equipment and to explore CIGS formation recipes that can be implemented on this equipment. This is the inverse of the conventional approach in which manufacturing techniques are sought that can reproduce a high efficiency laboratory scale process over large areas. A feature of this equipment is the use of proprietary linear sources capable of downwards evaporation. Using recipes generated within this program, CIGS cells with efficiencies up to 13.9% were prepared by EPV under a separate CRADA with NREL. Entirely within this program, an aperture area efficiency of 9.6% was achieved for a laminated submodule of area 135.2 cm{sup 2}. Considerable effort has gone into the preparation and characterization of CIGS prepared on substrates measuring 96.5 cm x 44.5 cm, and good compositional uniformity has been achieved along both the short and long directions of the plate. Despite this, the material has not yet achieved the efficiency levels demonstrated in smaller scale equipment, and recipe development is ongoing. As part of a program to eliminate, if possible, the use of CdS, alternative buffer layers such as InSe, In{sub x}S{sub y}, and ZnSe have been explored, and, to gain insight into junction formation, CdSe. Of these compounds, ZnSe has shown the most promise, and further experiments are being conducted to optimize material and device properties.

Delahoy, A.E.; Britt, J.S.; Gabor, A.M. [Energy Photovoltaics, Inc., Lawrenceville, NJ (United States)

1996-06-01T23:59:59.000Z

142

PhotoVoltaic distributed generation for Lanai power grid real-time simulation and control integration scenario.  

Science Conference Proceedings (OSTI)

This paper discusses the modeling, analysis, and testing in a real-time simulation environment of the Lanai power grid system for the integration and control of PhotoVoltaic (PV) distributed generation. The Lanai Island in Hawaii is part of the Hawaii Clean Energy Initiative (HCEI) to transition to 30% renewable green energy penetration by 2030. In Lanai the primary loads come from two Castle and Cook Resorts, in addition to residential needs. The total peak load profile is 12470 V, 5.5 MW. Currently there are several diesel generators that meet these loading requirements. As part of the HCEI, Lanai has initially installed 1.2 MW of PV generation. The goal of this study has been to evaluate the impact of the PV with respect to the conventional carbon-based diesel generation in real time simulation. For intermittent PV distributed generation, the overall stability and transient responses are investigated. A simple Lanai 'like' model has been developed in the Matlab/Simulink environment (see Fig. 1) and to accommodate real-time simulation of the hybrid power grid system the Opal-RT Technologies RT-Lab environment is used. The diesel generators have been modelled using the SimPowerSystems toolbox swing equations and a custom Simulink module has been developed for the High level PV generation. All of the loads have been characterized primarily as distribution lines with series resistive load banks with one VAR load bank. Three-phase faults are implemented for each bus. Both conventional and advanced control architectures will be used to evaluate the integration of the PV onto the current power grid system. The baseline numerical results include the stable performance of the power grid during varying cloud cover (PV generation ramping up/down) scenarios. The importance of assessing the real-time scenario is included.

Robinett, Rush D., III; Kukolich, Keith (Opal RT Technologies, Montreal, Quebec, Canada); Wilson, David Gerald; Schenkman, Benjamin L.

2010-06-01T23:59:59.000Z

143

Studies of Photovoltaic Roofing Systems at Wind Engineering and Fluids Laboratory at Colorado State University  

E-Print Network (OSTI)

Studies of Photovoltaic Roofing Systems at Wind Engineering and Fluids Laboratory at Colorado State of photovoltaic technology to generate electricity. Various innovative systems incorporating photovoltaic panels and Fluids Laboratory (WEFL) at Colorado State University (CSU, www.windlab.colostate.edu) have been involved

144

1 Copyright 2011 by ASME MATERIAL OPTIMIZATION FOR CONCENTRATED SOLAR PHOTOVOLTAIC AND  

E-Print Network (OSTI)

photovoltaic and hot water co-generation based on various solar cell technologies and micro channel heat sinks. Concentrated solar Photovoltaic (PV) based on multi junction cells can yield around 35-40% efficiency is moderate [3] in comparison to the concentrated solar photovoltaic, for which multi-junction cells

145

Conceptual design and systems analysis of photovoltaic power systems. Volume III(1). Technology  

DOE Green Energy (OSTI)

Conceptual designs were made and analyses were performed on three types of solar photovoltaic power systems. Included were Residential (1 to 10 kW), Intermediate (0.1 to 10 MW), and Central (50 to 1000 MW) Power Systems to be installed in the 1985 to 2000 time period. Subsystem technology presented here includes: insolation, concentration, silicon solar cell modules, CdS solar cell module, array structure, battery energy storage, power conditioning, residential power system architectural designs, intermediate power system structural design, and central power system facilities and site survey.

Pittman, P.F.

1977-05-01T23:59:59.000Z

146

Coal based electric generation comparative technologies report  

Science Conference Proceedings (OSTI)

Ohio Clean Fuels, Inc., (OCF) has licensed technology that involves Co-Processing (Co-Pro) poor grade (high sulfur) coal and residual oil feedstocks to produce clean liquid fuels on a commercial scale. Stone Webster is requested to perform a comparative technologies report for grassroot plants utilizing coal as a base fuel. In the case of Co-Processing technology the plant considered is the nth plant in a series of applications. This report presents the results of an economic comparison of this technology with other power generation technologies that use coal. Technologies evaluated were:Co-Processing integrated with simple cycle combustion turbine generators, (CSC); Co-Processing integrated with combined cycle combustion turbine generators, (CCC); pulverized coal-fired boiler with flue gas desulfurization and steam turbine generator, (PC) and Circulating fluidized bed boiler and steam turbine generator, (CFB). Conceptual designs were developed. Designs were based on approximately equivalent net electrical output for each technology. A base case of 310 MWe net for each technology was established. Sensitivity analyses at other net electrical output sizes varying from 220 MWe's to 1770 MWe's were also performed. 4 figs., 9 tabs.

Not Available

1989-10-26T23:59:59.000Z

147

Definition: Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Photovoltaics Jump to: navigation, search Dictionary.png Photovoltaics Pertaining to the direct conversion of light into electricity[1][2] View on Wikipedia Wikipedia Definition Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium gallium selenide/sulfide. Due to the increased demand for renewable energy sources, the manufacturing of solar cells and photovoltaic arrays has advanced

148

Solar Sound Arts: Creating Instruments and Devices Powered by Photovoltaic Technologies  

E-Print Network (OSTI)

This paper describes recent developments in the creation of sound-making instruments and devices powered by photovoltaic (PV) technologies. With the rise of more efficient PV products in diverse packages, the possibilities for creating solar-powered musical instruments, sound installations, and loudspeakers are becoming increasingly realizable. This paper surveys past and recent developments in this area, including several projects by the author, and demonstrates how the use of PV technologies can influence the creative process in unique ways. In addition, this paper discusses how solar sound arts can enhance the aesthetic direction taken by recent work in soundscape studies and acoustic ecology. Finally, this paper will point towards future directions and possibilities as PV technologies continue to evolve and improve in terms of performance, and become more affordable.

unknown authors

2011-01-01T23:59:59.000Z

149

Entropy Generation Analysis of Desalination Technologies  

E-Print Network (OSTI)

Increasing global demand for fresh water is driving the development and implementation of a wide variety of seawater desalination technologies. Entropy generation analysis, and specifically, Second Law efficiency, is an ...

Mistry, Karan Hemant

150

Solar Thermal Generation Technologies: 2006  

Science Conference Proceedings (OSTI)

After years of relative inactivity, the solar thermal electric (STE) industry is experiencing renewed activity and investment. The shift is partly due to new interest in large-scale centralized electricity generation, for which STE is well suited and offers the lowest cost for solar-specific renewable portfolio standards. With policymaking and public interest driven by concerns such as global climate change, atmospheric emissions, and traditional fossil fuel price and supply volatility, STE is increasing...

2007-03-30T23:59:59.000Z

151

Recent progress in the photovoltaic manufacturing technology project (PVMaT)  

DOE Green Energy (OSTI)

The Photovoltaic Manufacturing Technology (PVMaT) Project was initiated in 1990 to help the US photovoltaic (PV) industry extend its world leadership role in manufacturing and commercially developing PV modules and systems. It is being conducted in several phases, staggered to support industry progress. The four most recently awarded subcontracts (Phase 2B) are now completing their first year of research. They include two subcontracts on CdTe, one on Spheral Solar[trademark] Cells, and one on cast polysilicon. These subcontracts represent new technology additions to the PVMaT Project. Subcontracts initiated in earlier phases are nearing completion, and their progress is summarized. An additional phase of PVMaT, Phase 4A, is being initiated which will emphasize product-driven manufacturing research and development. The intention of Phase 4A is to emphasize improvement and cost reduction in the manufacture of full-system PV products. The work areas may include, but are not limited to, issues such as improvement of module manufacturing processes; system and system component packaging, integration, manufacturing, and assembly; product manufacturing flexibility; and balance-of-system development with the goal of product manufacturing improvements.

Witt, C.E.; Mitchell, R.L.; Thomas, H. (National Renewable Energy Lab., Golden, CO (United States)); Herwig, L.O. (USDOE, Washington, DC (United States)); Ruby, D.S. (Sandia National Labs., Albuquerque, NM (United States)); Sellers, R.

1994-12-09T23:59:59.000Z

152

Making the most of residential photovoltaic systems  

DOE Green Energy (OSTI)

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

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

1999-10-18T23:59:59.000Z

153

Utilizing Electric Vehicles to Assist Integration of Large Penetrations of Distributed Photovoltaic Generation Capacity  

SciTech Connect

Executive Summary Introduction and Motivation This analysis provides the first insights into the leveraging potential of distributed photovoltaic (PV) technologies on rooftop and electric vehicle (EV) charging. Either of the two technologies by themselves - at some high penetrations – may cause some voltage control challenges or overloading problems, respectively. But when combined, there – at least intuitively – could be synergistic effects, whereby one technology mitigates the negative impacts of the other. High penetration of EV charging may overload existing distribution system components, most prominently the secondary transformer. If PV technology is installed at residential premises or anywhere downstream of the secondary transformer, it will provide another electricity source thus, relieving the loading on the transformers. Another synergetic or mitigating effect could be envisioned when high PV penetration reverts the power flow upward in the distribution system (from the homes upstream into the distribution system). Protection schemes may then no longer work and voltage violation (exceeding the voltage upper limited of the ANSI voltage range) may occur. In this particular situation, EV charging could absorb the electricity from the PV, such that the reversal of power flow can be reduced or alleviated. Given these potential mutual synergistic behaviors of PV and EV technologies, this project attempted to quantify the benefits of combining the two technologies. Furthermore, of interest was how advanced EV control strategies may influence the outcome of the synergy between EV charging and distributed PV installations. Particularly, Californian utility companies with high penetration of the distributed PV technology, who have experienced voltage control problems, are interested how intelligent EV charging could support or affect the voltage control

Tuffner, Francis K.; Chassin, Forrest S.; Kintner-Meyer, Michael CW; Gowri, Krishnan

2012-11-30T23:59:59.000Z

154

A review of incentives, strategies and model technologies for recycling photovoltaic modules  

DOE Green Energy (OSTI)

This paper identifies existing recycling programs for consumer products with similar composition to photovoltaic (PV) modules, including cathode-ray tubes, electronic circuit boards, batteries, and automobile windshield glass. Discussed are incentives, the selection of technologies, and strategies used to recycle these products. Since the technologies for recycling these products exist, developing a process, or series of processes, for PV modules should primarily be a matter of customization. Developing an entire recycling program that is economically feasible will provide a greater challenge. Achieving this will require careful analysis of incentives, use of various combinations of strategies, and inclusion of multiple industries for additional technical processes. This can contribute to the success of a program by dividing the costs and ensuring that secondary products and materials enter into a diverse amount of markets.

DePhillips, M.P.; Moskowitz, P.D.

1994-03-07T23:59:59.000Z

155

ANALYSIS OF DISTRIBUTION FEEDER LOSSES DUE TO ADDITION OF DISTRIBUTED PHOTOVOLTAIC GENERATORS  

SciTech Connect

Distributed generators (DG) are small scale power supplying sources owned by customers or utilities and scattered throughout the power system distribution network. Distributed generation can be both renewable and non-renewable. Addition of distributed generation is primarily to increase feeder capacity and to provide peak load reduction. However, this addition comes with several impacts on the distribution feeder. Several studies have shown that addition of DG leads to reduction of feeder loss. However, most of these studies have considered lumped load and distributed load models to analyze the effects on system losses, where the dynamic variation of load due to seasonal changes is ignored. It is very important for utilities to minimize the losses under all scenarios to decrease revenue losses, promote efficient asset utilization, and therefore, increase feeder capacity. This paper will investigate an IEEE 13-node feeder populated with photovoltaic generators on detailed residential houses with water heater, Heating Ventilation and Air conditioning (HVAC) units, lights, and other plug and convenience loads. An analysis of losses for different power system components, such as transformers, underground and overhead lines, and triplex lines, will be performed. The analysis will utilize different seasons and different solar penetration levels (15%, 30%).

Tuffner, Francis K.; Singh, Ruchi

2011-08-09T23:59:59.000Z

156

Simulation of one-minute power output from utility-scale photovoltaic generation systems.  

SciTech Connect

We present an approach to simulate time-synchronized, one-minute power output from large photovoltaic (PV) generation plants in locations where only hourly irradiance estimates are available from satellite sources. The approach uses one-minute irradiance measurements from ground sensors in a climatically and geographically similar area. Irradiance is translated to power using the Sandia Array Performance Model. Power output is generated for 2007 in southern Nevada are being used for a Solar PV Grid Integration Study to estimate the integration costs associated with various utility-scale PV generation levels. Plant designs considered include both fixed-tilt thin-film, and single-axis-tracked polycrystalline Si systems ranging in size from 5 to 300 MW{sub AC}. Simulated power output profiles at one-minute intervals were generated for five scenarios defined by total PV capacity (149.5 MW, 222 WM, 292 MW, 492 MW, and 892 MW) each comprising as many as 10 geographically separated PV plants.

Stein, Joshua S.; Ellis, Abraham; Hansen, Clifford W.

2011-08-01T23:59:59.000Z

157

Category:Electricity Generating Technologies | Open Energy Information  

Open Energy Info (EERE)

Electricity Generating Technologies Jump to: navigation, search Electricity Generating Technologies Subcategories This category has the following 5 subcategories, out of 5 total. B...

158

Pages that link to "Category:Electricity Generating Technologies...  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Category:Electricity Generating Technologies" Category:Electricity Generating Technologies Jump to:...

159

Changes related to "Category:Electricity Generating Technologies...  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Changes related to "Category:Electricity Generating Technologies" Category:Electricity Generating Technologies Jump to:...

160

Information Technology Solutions Glitter Glitter TMTM ...  

Revolutionary micro-solar technology utilizes glitter-sized photovoltaic cells to change how we generate and use solar power. The significantly ...

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Aternating current photovoltaic building block - Energy ...  

A modular apparatus for and method of alternating current photovoltaic power generation comprising via a photovoltaic module, generating power in the form of direct ...

162

Electric and Magnetic Field Exposure Levels (0 to 3 GHz) in Occupational Environments near Photovoltaic Energy Generation Facilities  

Science Conference Proceedings (OSTI)

Electric and magnetic field levels associated with photovoltaic energy generation facilities were measured and characterized in this study. This evaluation included the measurement of static (direct current [DC]) magnetic fields, power-frequency alternating current (AC) electric and magnetic fields (up to 3,000 Hz), and radio-frequency (RF) electric and magnetic fields (up to 3,000 MHz) at two electric utility solar generation facilities.The major sources of DC magnetic fields within a ...

2012-11-07T23:59:59.000Z

163

Assessing the Long-Term System Value of Intermittent Electric Generation Technologies  

SciTech Connect

This research investigates the economic penetration and system-wide effects of large-scale intermittent technologies in an electric generation system. The research extends the standard screening curve analysis to optimize the penetration and system structure with intermittent technologies. The analysis is based on hour-by-hour electric demands and intermittent generation. A theoretical framework is developed to find an expression for the marginal value of an intermittent technology as a function of the average system marginal cost, the capacity factor of the generator, and the covariance between the generator's hourly production and the hourly system marginal cost. A series of model runs are made examining the penetration of wind and photovoltaic in a simple electric generation system. These illustrate the conclusions in the theoretical analysis and illustrate the effects that large-scale intermittent penetration has on the structure of the generation system. In the long-term, adding intermittent generation to a system allows us to restructure the dispatchable generation capacity to a mix with lower capital cost. It is found that large scale intermittent generation tends to reduce the optimal capacity and production of baseload generators and increase the capacity and production of intermediate generators, although the extent to which this occurs depends strongly on the pattern of production from the intermediate generators. It is also shown that the marginal value of intermittent generation declines as it penetrates. The analysis investigates the specific mechanism through which this occurs.

Lamont, A D

2005-08-24T23:59:59.000Z

164

Assessing the Long-Term System Value of Intermittent Electric Generation Technologies  

DOE Green Energy (OSTI)

This research investigates the economic penetration and system-wide effects of large-scale intermittent technologies in an electric generation system. The research extends the standard screening curve analysis to optimize the penetration and system structure with intermittent technologies. The analysis is based on hour-by-hour electric demands and intermittent generation. A theoretical framework is developed to find an expression for the marginal value of an intermittent technology as a function of the average system marginal cost, the capacity factor of the generator, and the covariance between the generator's hourly production and the hourly system marginal cost. A series of model runs are made examining the penetration of wind and photovoltaic in a simple electric generation system. These illustrate the conclusions in the theoretical analysis and illustrate the effects that large-scale intermittent penetration has on the structure of the generation system. In the long-term, adding intermittent generation to a system allows us to restructure the dispatchable generation capacity to a mix with lower capital cost. It is found that large scale intermittent generation tends to reduce the optimal capacity and production of baseload generators and increase the capacity and production of intermediate generators, although the extent to which this occurs depends strongly on the pattern of production from the intermediate generators. It is also shown that the marginal value of intermittent generation declines as it penetrates. The analysis investigates the specific mechanism through which this occurs.

Lamont, A D

2005-08-24T23:59:59.000Z

165

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

E-Print Network (OSTI)

-CYCLE ENVIRONMENTAL PROFILE OF PHOTOVOLTAICS AND COMPARISONS WITH OTHER ELECTRICITY-GENERATING TECHNOLOGIES V impacts than the nuclear fuel cycle. Although solar electric is peak power and nuclear is a base-load one

166

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

DOE Green Energy (OSTI)

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

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

1998-08-01T23:59:59.000Z

167

Thin Film CIGS and CdTe Photovoltaic Technologies: Commercialization, Critical Issues, and Applications; Preprint  

DOE Green Energy (OSTI)

We report here on the major commercialization aspects of thin-film photovoltaic (PV) technologies based on CIGS and CdTe (a-Si and thin-Si are also reported for completeness on the status of thin-film PV). Worldwide silicon (Si) based PV technologies continues to dominate at more than 94% of the market share, with the share of thin-film PV at less than 6%. However, the market share for thin-film PV in the United States continues to grow rapidly over the past several years and in CY 2006, they had a substantial contribution of about 44%, compared to less than 10% in CY 2003. In CY 2007, thin-film PV market share is expected to surpass that of Si technology in the United States. Worldwide estimated projections for CY 2010 are that thin-film PV production capacity will be more than 3700 MW. A 40-MW thin-film CdTe solar field is currently being installed in Saxony, Germany, and will be completed in early CY 2009. The total project cost is Euro 130 million, which equates to an installed PV system price of Euro 3.25/-watt averaged over the entire solar project. This is the lowest price for any installed PV system in the world today. Critical research, development, and technology issues for thin-film CIGS and CdTe are also elucidated in this paper.

Ullal, H. S.; von Roedern, B.

2007-09-01T23:59:59.000Z

168

Continuous roll-to-roll a-Si photovoltaic manufacturing technology  

DOE Green Energy (OSTI)

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

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

1993-04-01T23:59:59.000Z

169

Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Photovoltaics (Redirected from Photovoltaic) Jump to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)[1] Photovoltaic Panels Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual

170

MHK Technologies/Platform generators | Open Energy Information  

Open Energy Info (EERE)

generators generators < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Platform generators.jpg Technology Profile Primary Organization Aqua Magnetics Inc Technology Resource Click here Wave Technology Type Click here Reciprocating Device Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description In the platform configuration the generators sit on a platform and buoy floats move the generator s coil up and down as waves and swell pass underneath Technology Dimensions Device Testing Date Submitted 06:09.4 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Platform_generators&oldid=681636

171

PHOTOVOLTAIC SOLAR ELECTRIC SYSTEM  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Buying a PHOTOVOLTAIC SOLAR ELECTRIC SYSTEM A Consumer Guide 2003 System: A Consumer Guide i Buying a Photovoltaic Solar Electric System A Consumer Guide California Energy water system that uses the sun's energy to heat water, solar electric or photovoltaic technology uses

Krothapalli, Anjaneyulu

172

Grid Impacts of Distributed Generation with Advanced Inverter Functions: Hosting Capacity of Large-Scale Solar Photovoltaic Using Smart Inverters  

Science Conference Proceedings (OSTI)

With increasing penetration levels of solar photovoltaics (PV), the need for inverter technology to provide grid support has become more and more critical. Since 2009, the Electric Power Research Institute (EPRI) and industry partners have been working to establish a common set of functions that can provide such capability. The development of a common set of functions is complete; however, very little work to date has addressed the impact that these common functions will have on grid performance, ...

2013-12-20T23:59:59.000Z

173

Characterization and Modeling of 3D Photovoltaics  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, Energy Conversion – Photovoltaic, Concentrating Solar Power, and ...

174

Energy Conversion – Photovoltaic, Concentrating Solar Power, and ...  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2012. Symposium, Energy Conversion – Photovoltaic, Concentrating Solar Power, and  ...

175

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

DOE Green Energy (OSTI)

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

Not Available

1980-01-01T23:59:59.000Z

176

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

DOE Green Energy (OSTI)

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

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

2012-04-01T23:59:59.000Z

177

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

DOE Green Energy (OSTI)

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

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

2011-07-01T23:59:59.000Z

178

Photovoltaic Subcontract Program, FY 1991  

DOE Green Energy (OSTI)

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.

Not Available

1992-03-01T23:59:59.000Z

179

FCT Technology Validation: Stationary/Distributed Generation Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Stationary/Distributed Stationary/Distributed Generation Projects to someone by E-mail Share FCT Technology Validation: Stationary/Distributed Generation Projects on Facebook Tweet about FCT Technology Validation: Stationary/Distributed Generation Projects on Twitter Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Google Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Delicious Rank FCT Technology Validation: Stationary/Distributed Generation Projects on Digg Find More places to share FCT Technology Validation: Stationary/Distributed Generation Projects on AddThis.com... Home Transportation Projects Stationary/Distributed Generation Projects DOE Projects Non-DOE Projects Integrated Projects Quick Links Hydrogen Production

180

Photovoltaic Energy Conversion  

E-Print Network (OSTI)

Photovoltaic Energy Conversion Frank Zimmermann #12;Solar Electricity Generation Consumes no fuel Buy Solar Energy Stocks? Make Photovoltaics your Profession! #12;Challenges Make solar cells more and fossil fuel depletion problems! #12;Photovoltaics: Explosive Growth #12;Take Advantage of Solar Megatrend

Glashausser, Charles

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

PV-TONS: A photovoltaic technology ontology system for the design of PV-systems  

Science Conference Proceedings (OSTI)

The impacts of climate change, the increasing demand for energy and the diminishing fossil fuel resources have resulted in the development and use of a large number of renewable energy technologies in building development. These technologies are generating ... Keywords: Climate change, Ontology, PV-system, Renewable energy, Semantic Web

F. H. Abanda; J. H. M. Tah; D. Duce

2013-04-01T23:59:59.000Z

182

Alternating Current Photovoltaic Building Block - Energy ...  

This technology provides a fully integrated and self-containing alternating current (AC) photovoltaic (PV) Building Block device and method that allows photovoltaic ...

183

Program on Technology Innovation: Nuclear Power Generation Technologies  

Science Conference Proceedings (OSTI)

The United States and other countries are currently planning to expand their nuclear power electrical generation base in order to provide energy security and price stability while reducing greenhouse gas emissions. Since the existing fleet of nuclear plants was built during or before the 1970s, new plants will incorporate more advanced designs. This report documents the current status and potential for advanced nuclear power technology development and/or commercialization over the next 5 to 15 years.

2007-06-20T23:59:59.000Z

184

ANN-based GA for generating the sizing curve of stand-alone photovoltaic systems  

Science Conference Proceedings (OSTI)

Recent advances in artificial intelligence techniques have allowed the application of such technologies in real engineering problems. In this paper, an artificial neural network-based genetic algorithm (ANN-GA) model was developed for generating the ... Keywords: ANN, ANN-GA, GA, Prediction, Sizing curve, Stand-alone PV system

Adel Mellit

2010-05-01T23:59:59.000Z

185

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

by by Pacific Northwest National Laboratory & Oak Ridge National Laboratory June 4, 2007 June 2007 * NREL/TP-550-41085 PNNL-16362 High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems Building America Best Practices Series Volume 6 High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems Building America Best Practices Series Prepared by Pacific Northwest National Laboratory, a DOE national laboratory Michael C. Baechler Theresa Gilbride, Kathi Ruiz, Heidi Steward and Oak Ridge National Laboratory, a DOE national laboratory Pat M. Love June 4, 2007 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor Battelle Memorial Institute, nor any of their employees, makes any warranty,

186

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

DOE Green Energy (OSTI)

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

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

2006-09-01T23:59:59.000Z

187

Photon management in thermal and solar photovoltaics  

E-Print Network (OSTI)

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 ...

Hu, Lu

2008-01-01T23:59:59.000Z

188

EIA - International Energy Outlook 2009-Solar Photovoltaic and solar  

Gasoline and Diesel Fuel Update (EIA)

Solar Photovoltaic and Solar Thermal Electric Technologies Solar Photovoltaic and Solar Thermal Electric Technologies International Energy Outlook 2009 Solar Photovoltaic and Solar Thermal Electric Technologies Solar power is one of the fastest-growing sources of renewable energy worldwide. Many nations, concerned about the environmental impacts of electricity generation from fossil fuels or from large-scale hydroelectric plants, have been turning to solar power as an environmentally benign alternative. The solar energy that reaches the earth can be harnessed to generate electric power, and the potential for large-scale applications of solar power has improved markedly in recent years. Two solar power technologies—solar photovoltaic and solar thermal—are widely employed today, and their use is likely to increase in the future.

189

Berkeley Lab Study of Hydrogen Generating Technology's Lifecycle...  

NLE Websites -- All DOE Office Websites (Extended Search)

Berkeley Lab Study of Hydrogen Generating Technology's Lifecycle Net Energy Balance Designated a 'Hot' Article by Journal Photoelectrochemical hydrogen technology LCA analysis July...

190

Photovoltaic cell efficiency at elevated temperatures.  

E-Print Network (OSTI)

??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… (more)

Ray, Katherine Leung

2010-01-01T23:59:59.000Z

191

Distributed Generation Technologies DGT | Open Energy Information  

Open Energy Info (EERE)

DGT DGT Jump to: navigation, search Name Distributed Generation Technologies (DGT) Place Ithaca, New York Zip 14850 Product Commercializing a technology to convert organic waste into pure and compressed methane gas via anaerobic digestion. Coordinates 39.93746°, -84.553194° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.93746,"lon":-84.553194,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

192

Cadmium telluride photovoltaic manufacturing technology. Annual subcontract report, 7 January 1994--6 January 1995  

DOE Green Energy (OSTI)

This report describes work performed by Golden Photon, Inc. (GPI), to conduct research under the PVMaT program, Phase 2B. The objective of the research is to advance GPI`s manufacturing technology, reduce module production costs, increase average module performance, and identify ways to expand production capacity. More specifically, the tasks established for Phase I were to design and install leasehold improvements for the 2-MW production line; to improve and develop product design, efficiency, and marketability; to ensure uninterrupted qualified supplies and raw materials for production; to address environmental, health, and safety issues encountered during production of photovoltaic modules; and to reduce the cost of manufacturing modules. During the first half of this reporting period, the development, design, and debugging of cell interconnection equipment critical to start-up was completed. During the second and third quarters, the primary focus was on the substrate deposition steps (tin oxide, cadmium sulfide, and cadmium telluride) and cell interconnection steps (division). In general, process development, engineering, and quality teams continued to focus on identifying, baselining, and improving (through redesign) actual process equipment operation parameters to meet the required PV panel specifications and improve process throughput rates and yields.

Weisiger, D.; Albright, S.P.; Brines, J.; Thompson, R. [Photon Energy, Inc., Golden, CO (United States)

1995-11-01T23:59:59.000Z

193

Solar Photovoltaic Hydrogen: The Technologies and Their Place in Our Roadmaps and Energy Economics  

DOE Green Energy (OSTI)

Future solar photovoltaics-hydrogen systems are discussed in terms of the evolving hydrogen economy. The focus is on distributed hydrogen, relying on the same distributed-energy strengths of solar-photovoltaic electricity in the built environment. Solar-hydrogen residences/buildings, as well as solar parks, are presented. The economics, feasibility, and potential of these approaches are evaluated in terms of roadmap predictions on photovoltaic and hydrogen pathways-and whether solar-hydrogen fit in these strategies and timeframes. Issues with the ''hydrogen future'' are considered, and alternatives to this hydrogen future are examined.

Kazmerski, L. L.; Broussard, K.

2004-08-01T23:59:59.000Z

194

Advanced CIGS Photovoltaic Technology: Final Subcontract Report, 15 November 2001--13 February 2005  

DOE Green Energy (OSTI)

The principal objective of Energy Photovoltaics, Inc., is to develop the best CIGS large-area module process based on capability of implementation on EPV's large-scale processing equipment. The first requirement was to develop recipes for CIGS, junction formation, and a high-quality ZnO window that together are capable of producing small-area devices with efficiencies in excess of 13%. The second requirement was to significantly improve the uniformity of all layers (Mo, CIGS, CdS, and ZnO) on large-area substrates. Thirdly, patterning procedures needed to be improved to generate an interconnection with the lowest possible contact resistance, to eliminate possible shunting paths, and to reduce the dead area. The processes should have good reproducibility and therefore be easily controllable. Finally, having assembled all of these aspects mentioned above, the goal was to fabricate large-area, monolithic CIGS modules with efficiencies in the range 7%-10%. A study of module reliability and long-term stability would be conducted to establish the foundation and confidence for embarking on future manufacturing.

Delahoy, A. E.; Chen, L.

2005-08-01T23:59:59.000Z

195

Photovoltaics program plan, FY 1991--FY 1995  

SciTech Connect

This program plan describes the goals and philosophy of DOE National Photovoltaics Program and its major research and development activities for fiscal years (FY) 1991 through 1995. The plan represents a consensus among researchers and manufacturers, as well as current and potential users of photovoltaics (PV). It defines the activites that we believe are necessary to continue the rapid progress toward acceptance of photovoltaics as a serious candidate for cost-competitive electric power generation by the utility, transportation, buildings, and industrial sectors. A succesful National Photovoltaics Program will help achieve many of our national priorities. The mission of the National Photovoltaics Program is to help US industry to develop photovoltaic technology for large-scale generation of economically competitive electric power in the United States, making PV a significant part of our national energy mix. To fully achieve this, we must continue to work toward the long-term goals established in our previous program plan: reducing the price of delivered electricity to 5 to 6 cents per kilowatt-hour (kWh), increasing lifetimes to 30 years, and increasing module efficiencies to 15% for flat-plate and 25% for concentrator technologies. If progress continues at its current pace, we expect that the PV industry will have installed at least 1000 megawatts (MW) of capacity in the United States and 500 MW internationally by the year 2000.

1991-10-01T23:59:59.000Z

196

Amorphous silicon photovoltaic maufacturing technology, Phase 2A. Annual subcontract report, 1 May 1992--30 April 1993  

DOE Green Energy (OSTI)

This report describes teamed research by Utility Power Group (UPG) and Advanced Photovoltaic Systems, Inc., (APS) to advance photovoltaic (PV) manufacturing technologies, reduce module production costs, increase average module performance, and increase the existing production capacity. UPG and APS conducted parallel efforts to develop their manufacturing lines. Areas of focus included encapsulation and termination, product design, process and quality control, and automation. UPG improved the existing encapsulation system by developing advanced encapsulation materials and processes, resulting in a module that does not require backing glass. UPG also developed advanced termination materials and processes. APS performed development activities centered on the EUREKA manufacturing line. Developments in the APS EUREKA encapsulation system were in addition to the UPG activity on encapsulation, and they offer an alternative approach to the problems of encapsulating large-area, thin-film modules.

Duran, G.; Mackamul, K.; Metcalf, D. [Utility Power Group, Chatsworth, CA (United States); Koniares, A.; Skinner, D.; Volltrauer, H. [Advanced Photovoltaic Systems, Inc., Princeton, NJ (United States)

1994-02-01T23:59:59.000Z

197

The state of the art of thin-film photovoltaics  

DOE Green Energy (OSTI)

Thin-film photovoltaic technologies, based on materials such as amorphous or polycrystalline silicon, copper indium diselenide, cadmium telluride, and gallium arsenide, offer the potential for significantly reducing the cost of electricity generated by photovoltaics. The significant progress in the technologies, from the laboratory to the marketplace, is reviewed. The common concerns and questions raised about thin films are addressed. Based on the progress to date and the potential of these technologies, along with continuing investments by the private sector to commercialize the technologies, one can conclude that thin-film PV will provide a competitive alternative for large-scale power generation in the future.

Surek, T.

1993-10-01T23:59:59.000Z

198

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

E-Print Network (OSTI)

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

Mosher, Trannon

2010-01-01T23:59:59.000Z

199

Alternating Current Photovoltaic Building Block  

This technology provides a fully integrated and self-containing alternating current (AC) photovoltaic (PV) Building Block device and method that allows photovoltaic applications to become true plug-and-play devices. The Building Block combines, ...

200

Photovoltaic module reliability workshop  

DOE Green Energy (OSTI)

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.

Mrig, L. (ed.)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Photovoltaics and the Environment  

DOE Green Energy (OSTI)

Over the past five years, solar energy usage has grown by about 43 percent a year, giving rise to a billion-dollar industry in photovoltaics (PV) or getting electricity from light. The word photovoltaics combines the Greek phos, or light, with the “volt” of electricity. PV technologies have distinct environmental advantages over conventional power technologies, such as: no noise, no emissions, no need for fuel and power lines. Compared to burning coal, a gigawatt-hour of PV-generated electricity would prevent the release of about 1,000 tons of carbon dioxide, eight of sulfur dioxide, four of nitrogen oxides, and 0.4 tons of particulates. However, manufacturing the solar cells that transform light to electricity requires the use of some toxic and flammable substances. Addressing the environmental, health, and safety concerns of the PV industry to minimize risk while ensuring economic viability and public support is the work of the National Photovoltaic Environmental Health, & Safety Assistance Center at BNL.

Fthenakis, Vasilis (BNL Environmental Sciences)

2005-09-21T23:59:59.000Z

202

MHK Technologies/Tidal Hydraulic Generators THG | Open Energy Information  

Open Energy Info (EERE)

Generators THG Generators THG < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Hydraulic Generators THG.jpg Technology Profile Primary Organization Tidal Hydraulic Generators Ltd Project(s) where this technology is utilized *MHK Projects/Ramsey Sound Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The concept of generating energy in this way is made unique by our novel design feature. The generator, devised in 1998, is a hydraulic accumulator system, involving relatively small revolving blades which gather power to a central collector, where electricity is generated. The generator, which is situated under water, is 80 metres square, stands at 15 metres high, and is designed to run for a minimum of ten years without service.

203

Study on the Harmonics of Photovoltaic Generation SPWM Inverting Power Supplies  

Science Conference Proceedings (OSTI)

Harmonics are the main polluting source of affecting the power energy quality. In this paper, the causes that SPWM inverter power supply produces the harmonics are analyzed firstly and then a new three-phase ?-band-pass filter is designed to improve ... Keywords: harmonious, solar energy photovoltaic power, inverter, current ripples component

Jianqu Zhu; Feng Wang; Taiqiang Cao

2012-04-01T23:59:59.000Z

204

MHK Technologies/Sabella River Generator | Open Energy Information  

Open Energy Info (EERE)

Sabella River Generator Sabella River Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Sabella River Generator.jpg Technology Profile Primary Organization Sabella Energy Project(s) where this technology is utilized *MHK Projects/SR 01 Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 5/6: System Integration and Technology Laboratory Demonstration Technology Description A unidirectional river bed turbine Technology Dimensions Technology Nameplate Capacity (MW) 2 Device Testing Date Submitted 7/11/2012 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Sabella_River_Generator&oldid=680598

205

NREL: Photovoltaics Research - Company Partners in Photovoltaic  

NLE Websites -- All DOE Office Websites (Extended Search)

Company Partners in Photovoltaic Manufacturing R&D Company Partners in Photovoltaic Manufacturing R&D More than 40 private-sector companies partnered with NREL on successful efforts within the PV Manufacturing R&D Project. They included manufacturers of crystalline silicon, thin-film, and concentrator solar technologies. The companies are listed below. Advanced Energy Systems Alpha Solarco ASE Americas AstroPower/GE Energy Boeing Aerospace BP Solar Cronar Crystal Systems Dow Corning Energy Conversion Devices Energy Photovoltaics ENTECH Evergreen Solar First Solar Glasstech Solar Global Photovoltaic Specialists Global Solar Energy Golden Photon Iowa Thin Film Technologies ITN Energy Systems Kopin Mobil Solar Energy Omnion Power Engineering Photon Energy Photovoltaics International PowerLight RWE Schott Solar/Schott Solar

206

Photovoltaic and solar-thermal technologies in residential building codes, tackling building code requirements to overcome the impediments to applying new technologies  

SciTech Connect

This report describes the building code requirements and impediments to applying photovoltaic (PV) and solar-thermal technologies in residential buildings (one- or two-family dwellings). It reviews six modern model building codes that represent the codes to be adopted by most locations in the coming years: International Residential Code, First Draft (IRC), International Energy Conservation Code (IECC), International Mechanical Code (IMC), International Plumbing Code (IPC), International Fuel Gas Code (IFGC), and National Electrical Code (NEC). The IRC may become the basis for many of the building codes in the United States after it is released in 2000, and it references the other codes that will also likely become applicable at that time. These codes are reviewed as they apply to photovoltaic systems in buildings and building-integrated photovoltaic systems and to active-solar domestic hot-water and space-heating systems. The first discussion is on general code issues that impact the s e technologies-for example, solar access and sustainability. Then, secondly, the discussion investigates the relationship of the technologies to the codes, providing examples, while keeping two major issues in mind: How do the codes treat these technologies as building components? and Do the IECC and other codes allow reasonable credit for the energy impacts of the technologies? The codes can impact the implementation of the above technologies in several ways: (1) The technology is not mentioned in the codes. It may be an obstacle to implementing the technology, and the solution is to develop appropriate explicit sections or language in the codes. (2) The technology is discussed by the codes, but the language is confusing or ambiguous. The solution is to clarify the language. (3) The technology is discussed in the codes, but the discussion is spread over several sections or different codes. Practitioners may not easily find all of the relevant material that should be considered. The so lution is to put all relevant information in one section or to more clearly reference relevant sections. (4) The technology is prohibited by the code. Examples of this situation were not found. However, energy credit for some technologies cannot be achieved with the requirements of these codes. Finally, four types of future action are recommended to make the codes reviewed in this report more accommodating to renewable energy technologies: (1) Include suggested language additions and changes in the codes; (2) Create new code sections that place all of the requirements for a technology in one section of an appropriate code; (3) Apply existing standards, as appropriate, to innovative renewable energy and energy conservation technologies; and (4) Develop new standards, as necessary, to ease code compliance. A synergy may be possible in developing suitable code language changes for both photovoltaic and solar hot-water systems. The installation of rooftop photovoltaic panels and solar hot- water collectors involves many overlapping issues. Roof loading, weather tightness, mounting systems, roof penetrations, and similar concerns are identical for both technologies. If such work can be coordinated, organizations supporting both technologies could work together to implement the appropriate revisions and additions to the codes.

Wortman, D.; Echo-Hawk, L. [authors] and Wiechman, J.; Hayter, S.; Gwinner, D. [eds.

1999-10-04T23:59:59.000Z

207

MHK Technologies/Floating wave Generator | Open Energy Information  

Open Energy Info (EERE)

Generator Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Floating wave Generator.jpg Technology Profile Primary Organization Green Energy Corp Technology Resource Click here Wave Technology Type Click here Attenuator Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Floating Wave Powered Generator is an attenuator that uses three pontoons that pivot on rigid arms as the wave passes driving gears that turn a generator Technology Dimensions Device Testing Date Submitted 45:12.2 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Floating_wave_Generator&oldid=681577"

208

ZERO EMISSION POWER GENERATION TECHNOLOGY DEVELOPMENT  

SciTech Connect

Clean Energy Systems (CES) was previously funded by DOE's ''Vision 21'' program. This program provided a proof-of-concept demonstration that CES' novel gas generator (combustor) enabled production of electrical power from fossil fuels without pollution. CES has used current DOE funding for additional design study exercises which established the utility of the CES-cycle for retrofitting existing power plants for zero-emission operations and for incorporation in zero-emission, ''green field'' power plant concepts. DOE funding also helped define the suitability of existing steam turbine designs for use in the CES-cycle and explored the use of aero-derivative turbines for advanced power plant designs. This work is of interest to the California Energy Commission (CEC) and the Norwegian Ministry of Petroleum & Energy. California's air quality districts have significant non-attainment areas in which CES technology can help. CEC is currently funding a CES-cycle technology demonstration near Bakersfield, CA. The Norwegian government is supporting conceptual studies for a proposed 40 MW zero-emission power plant in Stavager, Norway which would use the CES-cycle. The latter project is called Zero-Emission Norwegian Gas (ZENG). In summary, current engineering studies: (1) supported engineering design of plant subsystems applicable for use with CES-cycle zero-emission power plants, and (2) documented the suitability and availability of steam turbines for use in CES-cycle power plants, with particular relevance to the Norwegian ZENG Project.

Ronald Bischoff; Stephen Doyle

2005-01-20T23:59:59.000Z

209

MHK Technologies/The Linear Generator | Open Energy Information  

Open Energy Info (EERE)

Linear Generator Linear Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage The Linear Generator.jpg Technology Profile Primary Organization Trident Energy Ltd Project(s) where this technology is utilized *MHK Projects/TE4 Technology Resource Click here Wave Technology Type Click here Point Absorber Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The simplicity of the Trident Energy solution is based around the fact that the system has only one moving part - float / linear generator translator, which is powered by the motion of floats placed in the sea. As waves pass through the wavefarm, so the floats rise and fall. This causes relative motion between the two components of the linear generator (the translator and stator) and electricity is immediately generated. There is absolutely no contact between the two parts of the generator as the energy conversion is entirely electromagnetic.

210

Matrix converter technology in doubly-fed induction generators for wind generators.  

E-Print Network (OSTI)

??Wind generator technologies have been widely researched and documented. Modern wind generator systems are now being implemented with an output power of up to 5… (more)

Harris, Benjamin J

2009-01-01T23:59:59.000Z

211

A Framework of Incorporating Spatio-temporal Forecast in Look-ahead Grid Dispatch with Photovoltaic Generation  

E-Print Network (OSTI)

Increasing penetration of stochastic photovoltaic (PV) generation into the electric power system poses significant challenges to system operators. In the thesis, we evaluate the spatial and temporal correlations of stochastic PV generation at multiple sites. Given the unique spatial and temporal correlation of PV generation, an optimal data-driven forecast model for short-term PV power is proposed. This model leverages both spatial and temporal correlations among neighboring solar sites, and is shown to have improved performance compared with conventional persistent model. The tradeoff between communication cost and improved forecast quality is studied using realistic data sets collected from California and Colorado. n IEEE 14 bus system test case is used to quantify the value of improved forecast quality through the reduction of system dispatch cost. The Modified spatio-temporal forecast model which has the least forecast PV overestimate percentage shows the best performance in the dispatch cost reduction.

Yang, Chen

2013-05-01T23:59:59.000Z

212

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

DOE Green Energy (OSTI)

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

Not Available

2011-06-01T23:59:59.000Z

213

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

E-Print Network (OSTI)

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

Carpenter, Paul R.

1978-01-01T23:59:59.000Z

214

Computer simulation of the operations of utility grid connected photovoltaic power plants  

Science Conference Proceedings (OSTI)

In order to evaluate the commercial viability of photovoltaic power systems it is necessary to have reliable estimates and descriptions of the supply of electricity generated by the solar technology, the demand for that electricity, and the market application. ...

Chester S. Borden

1980-05-01T23:59:59.000Z

215

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

E-Print Network (OSTI)

An Assessment of Photovoltaic Energy Availability DuringPhotovoltaic Generation in South Australia. ” Energy Policy,Solar Photovoltaic Cells. ” Center for the Study of Energy

Mills, Andrew D.

2009-01-01T23:59:59.000Z

216

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

E-Print Network (OSTI)

An Assessment of Photovoltaic Energy Availability DuringPhotovoltaic Generation in South Australia. ” Energy Policy,Solar Photovoltaic Cells. ” Center for the Study of Energy

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

2007-01-01T23:59:59.000Z

217

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

E-Print Network (OSTI)

An Assessment of Photovoltaic Energy Availability DuringPhotovoltaic Generation in South Australia. ” Energy Policy,Solar Photovoltaic Cells. ” Center for the Study of Energy

Mills, Andrew

2009-01-01T23:59:59.000Z

218

Quarterly Report: Microchannel-Assisted Nanomaterial Deposition Technology for Photovoltaic Material Production  

DOE Green Energy (OSTI)

Quarterly report to ITP for Nanomanufacturing program. Report covers FY11 Q2. The primary objective of this project is to develop a nanomanufacturing process which will reduce the manufacturing energy, environmental discharge, and production cost associated with current nano-scale thin-film photovoltaic (PV) manufacturing approaches. The secondary objective is to use a derivative of this nanomanufacturing process to enable greener, more efficient manufacturing of higher efficiency quantum dot-based photovoltaic cells now under development. The work is to develop and demonstrate a scalable (pilot) microreactor-assisted nanomaterial processing platform for the production, purification, functionalization, and solution deposition of nanomaterials for photovoltaic applications. The high level task duration is shown. Phase I consists of a pilot platform for Gen II PV films along with parallel efforts aimed at Gen III PV quantum dot materials. Status of each task is described.

Palo, Daniel R.

2011-04-26T23:59:59.000Z

219

MHK Technologies/Current Electric Generator | Open Energy Information  

Open Energy Info (EERE)

Generator Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Current Electric Generator.jpg Technology Profile Primary Organization Current Electric Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Current Electric Generator will create electricity in three different processes simultaniously by harnessing the motion of water current to rotate the generator Two forms of magnetic induction and solar cells on the outer housing will produce electricity very efficiently The generators will be wired up together in large fields on open waterways sumerged from harm The electricity will be sent back to mainland via an underwater wire for consumption The Current Electric Generator is designed with the environment in mind and will primarilly be constructed from recycled materials cutting emmisions cost

220

NREL Photovoltaic Program FY 1996 Annual Report  

DOE Green Energy (OSTI)

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.

Not Available

1997-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

NREL Photovoltaic Program FY 1996 Annual Report  

SciTech Connect

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.

1997-08-01T23:59:59.000Z

222

ZERO EMISSION POWER GENERATION TECHNOLOGY DEVELOPMENT  

SciTech Connect

Clean Energy Systems (CES) was previously funded by DOE's ''Vision 21'' program. This program provided a proof-of-concept demonstration that CES' novel gas generator (combustor) enabled production of electrical power from fossil fuels without pollution. CES has used current DOE funding for additional design study exercises which established the utility of the CES-cycle for retrofitting existing power plants for zero-emission operations and for incorporation in zero-emission, ''green field'' power plant concepts. DOE funding also helped define the suitability of existing steam turbine designs for use in the CES-cycle and explored the use of aero-derivative turbines for advanced power plant designs. This work is of interest to the California Energy Commission (CEC) and the Norwegian Ministry of Petroleum & Energy. California's air quality districts have significant non-attainment areas in which CES technology can help. CEC is currently funding a CES-cycle technology demonstration near Bakersfield, CA. The Norwegian government is supporting conceptual studies for a proposed 40 MW zero-emission power plant in Stavager, Norway which would use the CES-cycle. The latter project is called Zero-Emission Norwegian Gas (ZENG). In summary, current engineering studies: (1) supported engineering design of plant subsystems applicable for use with CES-cycle zero-emission power plants, and (2) documented the suitability and availability of steam turbines for use in CES-cycle power plants, with particular relevance to the Norwegian ZENG Project.

Ronald Bischoff; Stephen Doyle

2005-01-20T23:59:59.000Z

223

Cost analysis methodology: Photovoltaic Manufacturing Technology Project. Annual subcontract report, 11 March 1991--11 November 1991  

DOE Green Energy (OSTI)

This report describes work done under Phase 1 of the Photovoltaic Manufacturing Technology (PVMaT) Project. PVMaT is a five-year project to support the translation of research and development in PV technology into the marketplace. PVMaT, conceived as a DOE/industry partnership, seeks to advanced PV manufacturing technologies, reduce PV module production costs, increase module performance, and expand US commercial production capacities. Under PVMaT, manufacturers will propose specific manufacturing process improvements that may contribute to the goals of the project, which is to lessen the cost, thus hastening entry into the larger scale, grid-connected applications. Phase 1 of the PVMaT project is to identify obstacles and problems associated with manufacturing processes. This report describes the cost analysis methodology required under Phase 1 that will allow subcontractors to be ranked and evaluated during Phase 2.

Whisnant, R.A. [Research Triangle Inst., Research Triangle Park, NC (United States)

1992-09-01T23:59:59.000Z

224

Holographic technology could increase solar efficiency | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Holographic technology could increase solar efficiency Holographic technology could increase solar efficiency Holographic technology could increase solar efficiency October 12, 2010 - 1:00pm Addthis Luminit's co-generation technology could combine photovoltaics (shown in this file photo) and solar thermal energy. | File photo Luminit's co-generation technology could combine photovoltaics (shown in this file photo) and solar thermal energy. | File photo Lorelei Laird Writer, Energy Empowers Co-generation technology could combine photovoltaics and solar thermal Luminit's technology bends and redirects sunlight to produce energy Research funded by Small Business Innovation Research grant There are two major technologies in solar energy: photovoltaics and solar thermal. Most people are more familiar with photovoltaics (PV) - the flat solar

225

Building Integration of Micro-Generation Technologies ...  

Science Conference Proceedings (OSTI)

... Micro-generation can be defined as residential or small-commercial applications of the on-site generation of power with heating and/or cooling ...

2013-05-03T23:59:59.000Z

226

MHK Technologies/Sub Surface Counter Rotation Current Generator | Open  

Open Energy Info (EERE)

Sub Surface Counter Rotation Current Generator Sub Surface Counter Rotation Current Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Sub Surface Counter Rotation Current Generator.jpg Technology Profile Primary Organization Cyclocean LLC Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 7 8 Open Water System Testing Demonstration and Operation Technology Description Self regulated sub surface current generators that operate independently that tether freely anchored offshore in deep waters in the Gulf Stream Current producing continuos clean energy for the eastern seaboard Technology Dimensions Device Testing Date Submitted 20:10.1 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Sub_Surface_Counter_Rotation_Current_Generator&oldid=681657

227

MHK Technologies/Direct Drive Power Generation Buoy | Open Energy  

Open Energy Info (EERE)

Power Generation Buoy Power Generation Buoy < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Direct Drive Power Generation Buoy.jpg Technology Profile Primary Organization Columbia Power Technologies Inc Technology Resource Click here Wave Technology Type Click here Point Absorber - Floating Technology Readiness Level Click here TRL 4 Proof of Concept Technology Description Direct drive point absorber In 2005 Oregon State University entered into an exclusive license agreement with Columbia Power Technologies to jointly develop a direct drive wave energy conversion device Designed to be anchored 2 5 miles off the Oregon coast in 130 feet of water it uses the rise and fall of ocean waves to generate electricity Mooring Configuration Anchored

228

Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Photovoltaics (Redirected from Solar Photovoltaics) Jump to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)[1] Photovoltaic Panels Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual

229

ARPA-E Announces $30 Million for Distributed Generation Technologies...  

NLE Websites -- All DOE Office Websites (Extended Search)

Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase...

230

Photovoltaic Materials  

Science Conference Proceedings (OSTI)

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

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

2012-10-15T23:59:59.000Z

231

Validation Testing of Hydrogen Generation Technology  

DOE Green Energy (OSTI)

This report describes the results of testing performed by ORNL for Photech Energies, Inc. The objective of the testing was to evaluate the efficacy of Photech's hydrogen generation reactor technology, which produces gaseous hydrogen through electrolysis. Photech provided several prototypes of their proprietary reactor for testing and the ancillary equipment, such as power supplies and electrolyte solutions, required for proper operation of the reactors. ORNL measured the production of hydrogen gas (volumetric flow of hydrogen at atmospheric pressure) as a function of input power and analyzed the composition of the output stream to determine the purity of the hydrogen content. ORNL attempted measurements on two basic versions of the prototype reactors-one version had a clear plastic outer cylinder, while another version had a stainless steel outer cylinder-but was only able to complete measurements on reactors in the plastic version. The problem observed in the stainless steel reactors was that in these reactors most of the hydrogen was produced near the anodes along with oxygen and the mixed gases made it impossible to determine the amount of hydrogen produced. In the plastic reactors the production of hydrogen gas increased monotonically with input power, and the flow rates increased faster at low input powers than they did at higher input powers. The maximum flow rate from the cathode port measured during the tests was 0.85 LPM at an input power of about 1100 W, an electrolyte concentration of 20%. The composition of the flow from the cathode port was primarily hydrogen and water vapor, with some oxygen and trace amounts of carbon dioxide. An operational mode that occurs briefly during certain operating conditions, and is characterized by flashes of light and violent bubbling near the cathode, might be attributable to the combustion of hydrogen and oxygen in the electrolyte solution.

Smith, Barton [ORNL; Toops, Todd J [ORNL

2007-12-01T23:59:59.000Z

232

Photovoltaic Subcontract Program. Annual report, FY 1992  

DOE Green Energy (OSTI)

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.

Not Available

1993-03-01T23:59:59.000Z

233

Solar Photovoltaic Capacity F t P f d P li  

E-Print Network (OSTI)

6/19/2013 1 Solar Photovoltaic ­ Capacity F t P f d P li Generating Resources Advisory Committee Advisor Model (SAM), version 2013.1.15 Technology: Solar PV (PVWatts system model)Technology: Solar PV Plant life: 25 years Weather data: Typical/representative of longterm averages; not one full historical

234

Renewable Energy Technology Guide  

Science Conference Proceedings (OSTI)

First published in 2000 as the Renewable Energy Technical Assessment GuideTAG-RE, the Electric Power Research Institute's (EPRI's) annual Renewable Energy Technology Guide provides a consistent basis for evaluating the economic feasibility of renewable generation technologies. These technologies include wind, solar photovoltaic (PV), solar thermal, biomass, municipal solid waste, geothermal, and emerging ocean energy conversion technologies.

2011-12-22T23:59:59.000Z

235

Technology for automatic generation of application programs: a pragmatic view  

Science Conference Proceedings (OSTI)

This article pragmatically reviews and appraises significant technology and efforts directed toward enhancing application program development and productivity and the challenging automatic generation of application programs. The topics covered are: decision ... Keywords: COBOL generators, automated information system development, automatic program generation, automatic programming, customizers, database generation, problem statement languages, software automation, special purpose languages

Alfonso F. Cardenas

1977-09-01T23:59:59.000Z

236

MHK Technologies/Gyroscopic wave power generation system | Open Energy  

Open Energy Info (EERE)

Gyroscopic wave power generation system Gyroscopic wave power generation system < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Gyrodynamics Corporation Technology Resource Click here Wave Technology Type Click here Attenuator Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description This gyroscopic wave power generation system is a pure rotational mechanical system that does not use conventional air turbines and is housed on a unique floating platform float In particular its outstanding feature is that it utilizes the gyroscopic spinning effect A motor is used to turn a 1 meter diameter steel disc flywheel inside the apparatus and when the rolling action of waves against the float tilts it at an angle the gyroscopic effect causes the disc to rotate longitudinally This energy turns a generator producing electricity

237

Optimal control of photovoltaic arrays  

Science Conference Proceedings (OSTI)

A high value of the energy conversion efficiency is not the only feature a photovoltaic power processing system must have. An optimal control of the photovoltaic generator must be also designed in order to maximize the electrical power it produces, even ... Keywords: Maximum power point tracking, Photovoltaic systems, Power electronics

N. Femia, G. Petrone, G. Spagnuolo, M. Vitelli

2013-05-01T23:59:59.000Z

238

Assessment of Micro-Generation Technologies for Distributed Generation Applications  

Science Conference Proceedings (OSTI)

Small micro-turbine engines targeted for stationary power markets have been advancing rapidly the past few years. This report provides intelligence on vendor programs, markets and economic assessments for this emerging technology.

1997-09-30T23:59:59.000Z

239

Available Technologies: High Energy Gamma Generator  

Biofuels; Biotechnology & Medicine. ... In addition, it can simultaneously use two or more target materials to generate photons with discrete energies.

240

Summary of New Generation Technologies and Resources  

Science Conference Proceedings (OSTI)

This compendium includes a PG&E R&D program perspective on the Advanced Energy Systems Technology Information Module (TIM) project, a glossary, a summary of each TIM, updated information on the status and trends of each technology, and a bibliography. The objectives of the TIMs are to enhance and document the PG&E R&D Program's understanding of the technology status, resource potential, deployment hurdles, commercial timing, PG&E applications and impacts, and R&D issues of advanced technologies for electric utility applications in Northern California. [DJE-2005

None

1993-01-08T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

S30-A2-02 PROPOSAL OF UNIQUE PV SYSTEM FOR LARGE-SCALE PHOTOVOLTAIC POWER GENERATION SYSTEM  

E-Print Network (OSTI)

In order to make a PV power generation system survive as an economically viable option against other renewable energy sources, drastic reduction of energy cost is inevitable. The authors have been working on the development of a unique PV system to reduce total system cost including solar panel, power conversion unit and installation work [I]. In the proposed concept, AC photovoltaic device and adhesive mounting method were introduced for the dedicated use in power station. By introducing this concept, it is feasible that the system cost will be reduced to 113 compared to the conventional system. The authors believe that the concept is suitable for very large-scale PV systems in desert areas. 1.

Kimitoshi Fukae; Akiharu Takabayashi; Shigenori Itoyama; Ichiro Kataoka; Hidehisa Makita; Masaaki Matsushita; Takaaki Mukai; Nobuyoshi Takehara; Masaki Konishi

2003-01-01T23:59:59.000Z

242

Program on Technology Innovation: High- Efficiency Photovoltaic Research at IRDEP, 2011  

Science Conference Proceedings (OSTI)

 This report describes the advances of the High-Efficiency Photovoltaic (HEPV) program during 2011. The report focuses on the technical advances in the "up-conversion" program, addressing compounds with improved PV energy-conversion potential. Up-conversion uses materials with special optical properties to convert infrared light that cannot be used by standard PV cells into visible light that the cells can efficiently convert to electricity. Results of experiments on up-conversion ...

2012-08-24T23:59:59.000Z

243

Program on Technology Innovation: Evaluation of Hydrophobic Nano Coating on Solar Photovoltaic Panels, Polaris Initiative Report  

Science Conference Proceedings (OSTI)

This project evaluated the effects of a hydrophobic nano coating on photovoltaic panels. Variables studied were hydrophobicity, changes in cleanliness of the surfaces, and changes in ice and snow accumulation.BackgroundThe nano coating evaluated was being marketed commercially as a vehicle windshield treatment that was meant to keep the windshield glass clean and repel water from the windshield. The treatment claimed to last for up to 1 year in automotive ...

2013-11-27T23:59:59.000Z

244

DC Arc Fault Detection and Circuit Interruption Technologies for Photovoltaic Systems  

Science Conference Proceedings (OSTI)

In the United States, much like the rest of the world, rapid growth in photovoltaic (PV) systems is currently taking place. These systems are being installed in open fields, on parking structures, and on residential or commercial rooftops. Unfortunately, electrical arcing within a PV system’s DC circuits has caused some fires. DC-sourced electrical fires are difficult to extinguish if arcing originates from unprotected source circuits within a PV array. Several high-visibility structural fires ...

2013-12-20T23:59:59.000Z

245

Compound Photovoltaics - Programmaster.org  

Science Conference Proceedings (OSTI)

Sep 15, 2009 ... The growing prospects of current and coming solar-photovoltaic (PV) technologies are envisioned, arguing this solar-electricity source is ...

246

Fuel Cycle Comparison of Distributed Power Generation Technologies  

E-Print Network (OSTI)

, as well as for coal and natural gas grid-generation technologies, are provided as baseline cases Cycle Power Plants 14.9 33.1 Natural Gas Turbine, Combined Cycle Power Plants 18.3 46.0 Coal comparable to the total energy use associated with the natural gas and coal grid-generation technologies

Argonne National Laboratory

247

MHK Technologies/Brandl Generator | Open Energy Information  

Open Energy Info (EERE)

Generator Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Brandl Generator.jpg Technology Profile Primary Organization Brandl Motor Technology Resource Click here Wave Technology Type Click here Point Absorber - Floating Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Brandl Generator consists of a floating disc that is 10 meters in diameter and one meter thick that rises and falls with the waves A pendulum mass hanging beneath a spring moves up and down anticyclically This mass drives the direct connected magnets that induce an electrical current when they move through the induction coils This drawing shows the basic idea Legend 1 magnets 2 inductance coil 3 floating disc 4 spring 5 pendulum mass

248

MHK Technologies/Under Bottom Wave Generator | Open Energy Information  

Open Energy Info (EERE)

Under Bottom Wave Generator Under Bottom Wave Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Under Bottom Wave Generator.jpg Technology Profile Primary Organization Glen Edward Cook Technology Resource Click here Wave Technology Type Click here Attenuator Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description Water will flow up into the pipe from the down stroke and out of the pipe back into the ocean on the up stroke Waves rolling by will push water into the pipe This will mock the ocean swell A propellar is mounted inside the lower portion of the pipe the upward and downward flow of water will spin the propellar in both direcitons The propellar is connected to a generator

249

ARPA-E Announces $30 Million for Distributed Generation Technologies |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

30 Million for Distributed Generation 30 Million for Distributed Generation Technologies ARPA-E Announces $30 Million for Distributed Generation Technologies November 25, 2013 - 1:00pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Today, the Department of Energy announced up to $30 million in Advanced Research Projects Agency - Energy (ARPA-E) funding for a new program focused on the development of transformational electrochemical technologies to enable low-cost distributed power generation. ARPA-E's Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase energy security, and balance intermittent renewable technologies while reducing CO2 emissions associated with current

250

Fueling the Next Generation of Vehicle Technology | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fueling the Next Generation of Vehicle Technology Fueling the Next Generation of Vehicle Technology Fueling the Next Generation of Vehicle Technology February 6, 2013 - 11:20am Addthis Professor Jack Brouwer, Associate Director and Chief Technology Officer of the National Fuel Cell Research Center, points out the tri-generation facility that uses biogas from Orange County Sanitation District’s wastewater treatment plant to produce hydrogen, heat and power. | Photo courtesy of the Energy Department. Professor Jack Brouwer, Associate Director and Chief Technology Officer of the National Fuel Cell Research Center, points out the tri-generation facility that uses biogas from Orange County Sanitation District's wastewater treatment plant to produce hydrogen, heat and power. | Photo courtesy of the Energy Department.

251

Final technical report, Phase 1, Photovoltaic manufacturing technology. Final subcontract report, 9 January 1991--14 April 1991  

DOE Green Energy (OSTI)

A development/manufacturing program is described for achieving photovoltaic modules at a cost less than $.50/Watt and solar generating fields at a total installed system cost of less than $1.50/Watt. The basic approach is to construct a fully automated continuous production line based on close spaced sublimation (CSS) deposition of CdTe to produce 60 cm x 120 cm thin-film PV modules. The high deposition rate possible with CSS opens up the possibility of obtaining very high throughput in the range of hundreds of megawatts per year. This leads to dramatic reductions in the capital, labor and overhead cost per unit. The program includes a development phase, an initial production line of about 5-MW/year capacity, a 5 MW solar generating field, and a high-throughput production line with a capacity in the range of hundreds of megawatts per year.

Brown, J. [Solar Cells, Inc., Toledo, TX (US)

1991-11-01T23:59:59.000Z

252

Photovoltaic decision analysis  

E-Print Network (OSTI)

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

Goldman, Neil L.

1977-01-01T23:59:59.000Z

253

Cast polycrystalline silicon photovoltaic module manufacturing technology improvements. Annual subcontract report, 1 January 1996--31 December 1996  

DOE Green Energy (OSTI)

This report describes Solarex`s accomplishments during this phase of the Photovoltaic Manufacturing Technology (PVMaT) program. During this reporting period, Solarex researchers converted 79% of production casting stations to increase ingot size and operated them at equivalent yields and cell efficiencies; doubled the casting capacity at 20% the cost of buying new equipment to achieve the same capacity increase; operated the wire saws in a production mode with higher yields and lower costs than achieved on the ID saws; purchased additional wire saws; developed and qualified a new wire-guide coating material that doubles the wire-guide lifetime and produces significantly less scatter in wafer thickness; ran an Al paste back-surface-field process on 25% of all cells in manufacturing; completed environmental qualification of modules using cells produced by an all-print metallization process; qualified a vendor-supplied Tedlar/ethylene vinyl acetate (EVA) laminate to replace the combination of separate sheets of EVA and Tedlar backsheet; substituted RTV adhesive for the 3M Very High Bond tape after several field problems with the tape; demonstrated the operation of a prototype unit to trim/lead attach/test modules; demonstrated the use of light soldering for solar cells; demonstrated the operation of a wafer pull-down system for cassetting wet wafers; and presented three PVMaT-related papers at the 25th IEEE Photovoltaic Specialists Conference.

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

1997-10-01T23:59:59.000Z

254

Energy Storage and Distributed Generation Technology Assessment  

Science Conference Proceedings (OSTI)

Energy storage continues to hold a great deal of interest to utilities and other stakeholders in the electric power enterprise. Storage can be used to shift load or energy from one time to another, to provide ancillary services and grid support, and is an enabling technology for smart grid technologies. This report investigates the current state of the art of advanced lead-acid batteries and zinc-air batteries, specifically where pertinent to stationary applications. It focuses on those developments and ...

2009-12-22T23:59:59.000Z

255

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

Science Conference Proceedings (OSTI)

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

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

2010-11-01T23:59:59.000Z

256

III. Commercial viability of second generation biofuel technology27  

E-Print Network (OSTI)

hectares (Mha) of land would be required to meet the EU target for biofuels (5.75 per cent of transport29 III. Commercial viability of second generation biofuel technology27 The previous chapters focused on first generation biofuels. In this chapter we focus on second generation biofuels, specifically

257

Immersion Cooling of Photovoltaic Cells in Highly Concentrated Solar Beams.  

E-Print Network (OSTI)

??Concentrated solar radiation can be utilized to generate electrical power from photovoltaic cells, but concentrated solar radiation increases the photovoltaic cell’s temperature. This increase in… (more)

Darwish, Ahmed

2011-01-01T23:59:59.000Z

258

Conceptual design and systems analysis of photovoltaic power systems. Final report. Volume III(2). Technology  

DOE Green Energy (OSTI)

Conceptual designs were made and analyses were performed on three types of solar photovoltaic power systems. Included were Residential (1 to 10 kW), Intermediate (0.1 to 10 MW), and Central (50 to 1000 MW) Power Systems to be installed in the 1985 to 2000 time period. The following analyses and simulations are covered: residential power system computer simulations, intermediate power systems computer simulation, central power systems computer simulation, array comparative performance, utility economic and margin analyses, and financial analysis methodology.

Pittman, P.F.

1977-05-01T23:59:59.000Z

259

MHK Technologies/Yu Oscillating Generator YOG | Open Energy Information  

Open Energy Info (EERE)

Oscillating Generator YOG Oscillating Generator YOG < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Yu Oscillating Generator YOG.jpg Technology Profile Primary Organization Yu Energy Corp Technology Resource Click here Wave Technology Type Click here Oscillating Wave Surge Converter Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description By harnessing force located on top of the device s mast Known as a form of actuator You would get a levered mechanical gain converted to torque for a period of time oscillating the lower half side to side The lower half will then drive a turbine producing power As it slows due to resistance the actuator will harness force again to drive the device Making up for any loss motion do to resistance

260

Creating the Next Generation of Energy Efficient Technology | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Creating the Next Generation of Energy Efficient Technology Creating the Next Generation of Energy Efficient Technology Creating the Next Generation of Energy Efficient Technology Supporting Innovative Research to Help Reduce Energy Use and Advance Manufacturing Supporting Innovative Research to Help Reduce Energy Use and Advance Manufacturing The Emerging Technologies team partners with national laboratories, industry, and universities to advance research, development, and commercialization of energy efficient and cost effective building technologies. These partnerships help foster American ingenuity to develop cutting-edge technologies that have less than 5 years to market readiness, and contribute to the goal to reduce energy consumption by at least 50%. Research and Development Improve the energy efficiency of appliances, including

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Comparison of Energy Production and Performance from Flat-Plate Photovoltaic Module Technologies Deployed at Fixed Tilt: Preprint  

DOE Green Energy (OSTI)

This conference paper describes the performance data for 14 photovoltaic modules deployed at fixed-latitude tilt in the field are presented and compared. Module performance is monitored continuously for optimum power characteristics. Flat-plate module technologies representative of crystalline, amorphous, and polycrystalline silicon, and cadmium telluride and copper indium diselenide, are scrutinized for energy production, effective efficiency and performance ratio-ratio of effective to reference efficiency. Most performance ratios exhibit seasonal fluctuations largely correlated to air or module temperatures, varying between 80% and 100%. These ratios tend toward larger values during winter and vise versa, except for amorphous silicon and cadmium telluride modules. In a-Si cases, the situation appears reversed: better performance ratios are exhibited during late summer. The effective efficiency and average daily and yearly energy production are analyzed and quantified.

del Cueto, J. A.

2002-05-01T23:59:59.000Z

262

Sustainable Retrofit of Residential Roofs Using Metal Roofing Panels, Thin-Film Photovoltaic Laminates, and PCM Heat Sink Technology  

DOE Green Energy (OSTI)

During September-October 2009, research teams representing Metal Construction Association (the largest North American trade association representing metal building manufacturers, builders, and material suppliers), CertainTeed (one of the largest U.S. manufacturers of thermal insulation and building envelope materials), Unisolar (largest U.S. producer of amorphous silicone photo-voltaic (PV) laminates), Phase Change Energy (manufacturer of bio-based PCM), and Oak Ridge National Laboratory (ORNL) installed three experimental attics utilizing different roof retrofit strategies in the ORNL campus. The main goal of this project was experimental evaluation of a newly-developed sustainable re-roofing technology utilizing amorphous silicone PV laminates integrated with metal roof and PCM heat sink. The experimental attic with PV laminate was expected to work during the winter time as a passive solar collector with PCM storing solar heat, absorbed during the day, and increasing overall attic air temperature during the night.

Kosny, Jan [ORNL; Miller, William A [ORNL; Childs, Phillip W [ORNL; Biswas, Kaushik [ORNL

2011-01-01T23:59:59.000Z

263

Heat Transfer Enhancement: Second Generation Technology  

E-Print Network (OSTI)

This paper reviews current activity in the field of enhanced heat transfer, with the aim of illustrating the technology and typical applications. Guidelines for application of enhanced surfaces are given, and practical concerns and economics are discussed. Special attention is directed toward use of enhanced surfaces in industrial process heat exchangers and heat recovery equipment.

Bergles, A. E.; Webb, R. L.

1984-01-01T23:59:59.000Z

264

Organic photovoltaics and concentrators  

E-Print Network (OSTI)

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 ...

Mapel, Jonathan King

2008-01-01T23:59:59.000Z

265

Photovoltaics: Separating Multiple Excitons  

Science Conference Proceedings (OSTI)

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

Nozik, A. J.

2012-05-01T23:59:59.000Z

266

CIS photovoltaic technology. Annual technical report, January 12, 1996--January 11, 1997  

DOE Green Energy (OSTI)

Thin film photovoltaic modules based on Cu(In,Ga)Se{sub 2} have been shown to possess attributes that should enable them to compete effectively with silicon-based modules, and that should ultimately allow realization of a much lower $/Wp cost figure. These attributes are stability, high efficiency, and low materials cost. Energy Photovoltaics has explored novel CIGS formation recipes that can be implemented on a unique pilot line constructed to coat substrates 4300 cm{sup 2} in area. One particular feature of this line is the use of proprietary linear sources capable of downwards evaporation. After experimentation with several types of recipe, a so-called {open_quotes}hybrid{close_quotes} process was found to simultaneously yield the desired combination of properties, namely good adhesion, device efficiency, uniformity, and reproducibility. The steps involve precursor formation, compound formation, and termination. Diagnostic techniques used to study and improve the CIGS films included spatial mapping of thickness, composition (using Auger analysis), resistance, V{sub oc} and I{sub sc}. The last three items are determined by quick tests designed to provide rapid feedback on plate quality. Problem areas were broken down and isolated through use of techniques involving substitution of different pieces of equipment for certain processing steps. For example, pilot line precursors were selenized in both the pilot line and smaller scale R&D equipment.

Delahoy, A.E.; Britt, J.S.; Kiss, Z.J. [Energy Photovoltaics, Inc., Princeton, NJ (United States)

1997-06-01T23:59:59.000Z

267

Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Photovoltaics (Redirected from - Solar PV) Jump to: navigation, search (The following text is derived from NREL's description of photovoltaic technology.)[1] Photovoltaic Panels Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual

268

MHK Technologies/Submergible Power Generator | Open Energy Information  

Open Energy Info (EERE)

Submergible Power Generator Submergible Power Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Submergible Power Generator.jpg Technology Profile Primary Organization Current to Current Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description The design of the SPG leverages water flows in varying scenarios to generate electricity While the focus of the C2C deployments is ocean currents the SPG works in a bi directional manner Therefore the SPG can be deployed to generate electricity from tidal differential tidal streams In areas where currents and tidal differential streams converge the SPG with remote control and telemetry systems will track the water velocity In this manner the SPG can be maneuver in three dimensions to optimize water flow Each tube of the catamaran is approximately 150 feet in length The inner tube contains the electronic components and the outer tube is the rotating impeller system comprising a generator with a four blade turbine which measures approximately 100 feet in diameter The total area covered by each SPG is about the size of a football field

269

MHK Technologies/Electric Generating Wave Pipe | Open Energy Information  

Open Energy Info (EERE)

Generating Wave Pipe Generating Wave Pipe < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Electric Generating Wave Pipe.jpg Technology Profile Primary Organization Able Technologies Technology Resource Click here Wave Technology Type Click here Point Absorber - Submerged Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The EGWAP incorporates a specially designed environmentally sound hollow noncorroding pipe also known as a tube or container whose total height is from the ocean floor to above the highest wave peak The pipe is anchored securely beneath the ocean floor When the water level in the pipe rises due to wave action a float rises and a counterweight descends This action will empower a main drive gear and other gearings to turn a generator to produce electricity The mechanism also insures that either up or down movement of the float will turn the generator drive gear in the same direction Electrical output of the generator is fed into a transmission cable

270

Fuel cycle comparison of distributed power generation technologies.  

DOE Green Energy (OSTI)

The fuel-cycle energy use and greenhouse gas (GHG) emissions associated with the application of fuel cells to distributed power generation were evaluated and compared with the combustion technologies of microturbines and internal combustion engines, as well as the various technologies associated with grid-electricity generation in the United States and California. The results were primarily impacted by the net electrical efficiency of the power generation technologies and the type of employed fuels. The energy use and GHG emissions associated with the electric power generation represented the majority of the total energy use of the fuel cycle and emissions for all generation pathways. Fuel cell technologies exhibited lower GHG emissions than those associated with the U.S. grid electricity and other combustion technologies. The higher-efficiency fuel cells, such as the solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC), exhibited lower energy requirements than those for combustion generators. The dependence of all natural-gas-based technologies on petroleum oil was lower than that of internal combustion engines using petroleum fuels. Most fuel cell technologies approaching or exceeding the DOE target efficiency of 40% offered significant reduction in energy use and GHG emissions.

Elgowainy, A.; Wang, M. Q.; Energy Systems

2008-12-08T23:59:59.000Z

271

Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation: Systematic Review and Harmonization  

Science Conference Proceedings (OSTI)

Published scientific literature contains many studies estimating life cycle greenhouse gas (GHG) emissions of residential and utility-scale solar photovoltaics (PVs). Despite the volume of published work, variability in results hinders generalized conclusions. Most variance between studies can be attributed to differences in methods and assumptions. To clarify the published results for use in decision making and other analyses, we conduct a meta-analysis of existing studies, harmonizing key performance characteristics to produce more comparable and consistently derived results. Screening 397 life cycle assessments (LCAs) relevant to PVs yielded 13 studies on crystalline silicon (c-Si) that met minimum standards of quality, transparency, and relevance. Prior to harmonization, the median of 42 estimates of life cycle GHG emissions from those 13 LCAs was 57 grams carbon dioxide equivalent per kilowatt-hour (g CO{sub 2}-eq/kWh), with an interquartile range (IQR) of 44 to 73. After harmonizing key performance characteristics, irradiation of 1,700 kilowatt-hours per square meter per year (kWh/m{sup 2}/yr); system lifetime of 30 years; module efficiency of 13.2% or 14.0%, depending on module type; and a performance ratio of 0.75 or 0.80, depending on installation, the median estimate decreased to 45 and the IQR tightened to 39 to 49. The median estimate and variability were reduced compared to published estimates mainly because of higher average assumptions for irradiation and system lifetime. For the sample of studies evaluated, harmonization effectively reduced variability, providing a clearer synopsis of the life cycle GHG emissions from c-Si PVs. The literature used in this harmonization neither covers all possible c-Si installations nor represents the distribution of deployed or manufactured c-Si PVs.

Hsu, D. D.; O'Donoughue, P.; Fthenakis, V.; Heath, G. A.; Kim, H. C.; Sawyer, P.; Choi, J. K.; Turney, D. E.

2012-04-01T23:59:59.000Z

272

Distributed Generation: Which technologies? How fast will they emerge?  

NLE Websites -- All DOE Office Websites (Extended Search)

Distributed Generation: Which technologies? How fast will they emerge? Distributed Generation: Which technologies? How fast will they emerge? Speaker(s): Tony DeVuono Date: March 16, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Julie Osborn Utility deregulation, environmental issues, increases in electricity demand, natural gas/electricity rate changes, new technologies, and several other key drivers are stimulating distributed generation globally. The technologies that have pushed ahead of the pack are micro turbines and fuel cells. Since Modine is a world leader in the manufacturing of heat transfer equipment, we are eager to play in this new, emerging market. Are the market drivers real? Will these technologies survive or even thrive? What are the pitfalls? If you had the responsibility in your company to spend millions and direct dozens of people down the DG path,

273

Utility Generation and Clean Coal Technology (Indiana) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Utility Generation and Clean Coal Technology (Indiana) Utility Generation and Clean Coal Technology (Indiana) Utility Generation and Clean Coal Technology (Indiana) < Back Eligibility Commercial Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative State/Provincial Govt Utility Savings Category Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Indiana Program Type Corporate Tax Incentive Industry Recruitment/Support Performance-Based Incentive Rebate Program Grant Program Provider Indiana Utility Regulatory Commission This statute establishes the state's support and incentives for the development of new energy production and generating facilities implementing advanced clean coal technology, such as coal gasification. The statute also supports the development of projects using renewable energy sources as well

274

Generation IV International Forum Updates Technology Roadmap and Builds  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Generation IV International Forum Updates Technology Roadmap and Generation IV International Forum Updates Technology Roadmap and Builds Future Collaboration Generation IV International Forum Updates Technology Roadmap and Builds Future Collaboration December 31, 2013 - 12:14pm Addthis GIF Policy Group Meeting in Brussels, Belgium, November 2013 GIF Policy Group Meeting in Brussels, Belgium, November 2013 Deputy Assistant Secretary Kelly Deputy Assistant Secretary Kelly Deputy Assistant Secretary for Nuclear Reactor Technologies The Generation IV International Forum (GIF) held its 36th Policy Group (PG) meeting on November 21-22 in Brussels, Belgium. The PG reviewed progress on a number of on-going actions and received progress reports from the GIF Experts Group (EG) and the GIF Senior Industry Advisory Panel (SIAP).

275

Observations on A Technology Roadmap for Generation IV Nuclear Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Observations on A Technology Roadmap for Generation IV Nuclear Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report The development of advanced nuclear energy systems in the U.S. will depend greatly on the continued success of currently operating light water nuclear power plants and the ordering of new installations in the short term. DOE needs to give those immediate objectives the highest priority and any additional support they require to assure their success. DOE is pursuing two initiatives to encourage a greater use of nuclear energy systems. The initiatives have been reviewed by NERAC Subcommittee on Generation IV Technology Planning (GRNS) and they are: * A Near Term Development (NTD) Roadmap which is in the process of being

276

Energy Generation by State, by Technology (2009) Provides annual...  

Open Energy Info (EERE)

Technology (2009) Provides annual energy generation for all states by fuel source (e.g. coal, gas, solar, wind) in 2009, reported in MWh. Also includes facility-level data...

277

Comparing the Costs of Intermittent and Dispatchable Electricity Generating Technologies  

E-Print Network (OSTI)

Economic evaluations of alternative electric generating technologies typically rely on comparisons between their expected life-cycle production costs per unit of electricity supplied. The standard life-cycle cost metric ...

Joskow, Paul L.

278

Continuous roll-to-roll amorphous silicon photovoltaic manufacturing technology. Semiannual subcontract report, 1 April 1993--30 September 1993  

DOE Green Energy (OSTI)

This report describes work for this reporting period under a 3-year program to advance Energy Conversion Device`s (ECD) roll-to-roll, triple-junction photovoltaic (PV) manufacturing technologies, to reduce the module production costs, to increase the stabilized module performance, and to expand commercial production capacity utilizing ECD technology. The specific 3-year goal is to develop advanced large-scale manufacturing technology incorporating ECD`s earlier research advances with the capability of producing modules with stable 11% efficiency at a cost of approximately $1.00 per peak watt. Major accomplishments during this reporting period include (1) the design, construction. amd testomg of a continuous roll-to-roll multipurpose amorphous silicon alloy solar cell deposition machine that incorporates improvements necessary to obtain higher efficiency solar cells; (2) development of a photothermal deflection spectroscopy (PDS) technique for evaluating back-reflector systems; (3) the development of an improved textured Ag/ZnO back-reflector system demonstrating 25% gain in J{sub sc} over previous textured Al back-reflector systems; and (4) the design of a serpentine web continuous roll-to-roll deposition chamber.

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

1994-06-01T23:59:59.000Z

279

Program on Technology Innovation: The Next Generation Nuclear Plant  

Science Conference Proceedings (OSTI)

This Technology Update documents the Next Generation Nuclear Plant (NGNP) project, which will demonstrate the design, licensing, construction, and operation of a new nuclear energy source using high-temperature gas-cooled reactor (HTGR) technology. This new non-emitting energy source is applicable to a broad range of uses, from generating electricity to providing high-temperature industrial process heat to producing hydrogen. The NGNP project is sponsored as part of the Energy Policy Act of 2005 and envi...

2008-12-15T23:59:59.000Z

280

SunShot Initiative: National Laboratory Photovoltaics Research  

NLE Websites -- All DOE Office Websites (Extended Search)

National Laboratory Photovoltaics National Laboratory Photovoltaics Research to someone by E-mail Share SunShot Initiative: National Laboratory Photovoltaics Research on Facebook Tweet about SunShot Initiative: National Laboratory Photovoltaics Research on Twitter Bookmark SunShot Initiative: National Laboratory Photovoltaics Research on Google Bookmark SunShot Initiative: National Laboratory Photovoltaics Research on Delicious Rank SunShot Initiative: National Laboratory Photovoltaics Research on Digg Find More places to share SunShot Initiative: National Laboratory Photovoltaics Research on AddThis.com... Concentrating Solar Power Photovoltaics Research & Development Competitive Awards Diversity in Science and Technology Advances National Clean Energy in Solar Grid Engineering for Accelerated Renewable Energy Deployment

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

MHK Technologies/KESC Tidal Generator | Open Energy Information  

Open Energy Info (EERE)

KESC Tidal Generator KESC Tidal Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage KESC Tidal Generator.jpg Technology Profile Primary Organization Kinetic Energy Systems Project(s) where this technology is utilized *MHK Projects/Newfound Harbor Project Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The Tidal Generator is based on free flow hydrodynamics for regions that have flood and ebb tides. Strategically attached to bridges, pilings, river, channel, or sea bottoms, this multi-directional generator contains two sets of turbine blades. As the tide flows inward the inward turbine blades opens to maximum rotor diameter while the outward turbine closes into the outward cone-shaped hub to create a hydro dynamically clean surface for water to flow without drag. The center diameter is 75% of the diameter of the turbine blades at full rotor extension for stability.

282

MHK Technologies/Syphon Wave Generator | Open Energy Information  

Open Energy Info (EERE)

Syphon Wave Generator Syphon Wave Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Syphon Wave Generator.jpg Technology Profile Primary Organization Green Energy Corp Technology Resource Click here Wave Technology Type Click here Oscillating Water Column Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Syphon Wave Generator is composed of a horizontal pipe containing a propeller driven generator mounted above the highest normal wave at high tide and two or more vertical pipes at least one at each end of the horizontal pipe Each vertical pipe must extend below the water surface at all times and have openings below the surface All the air must be removed from the pipe thus filling the unit completely with water When the crest of a wave reaches the first vertical pipe the water level will be higher at that pipe than at the second vertical pipe This causes water to flow up the first pipe and through the horizontal pipe thus turning the propeller and generator to produce electricity and then down the second vertical pipe due to the siphon effect When the crest of the wave moves to the second vertical pipe the water level is higher there than at the first pipe This will cause the water to flow up the second pipe and through the system in the opposite direction again prod

283

Modeling and Model Validation for Variable Generation Technologies: Focus on Wind Generation  

Science Conference Proceedings (OSTI)

The influx of variable-generation technologies, particularly wind generation, into the bulk transmission grid has been tremendous over the past decade. This trend will likely continue, in light of national and state renewable portfolio standards. Thus, there is a need for generic, standard, and publicly available models for variable-generation technologies for power system planning studies. The Electric Power Research Institute (EPRI), in collaboration with the Western Electricity Coordinating Council (...

2010-12-14T23:59:59.000Z

284

A next generation smart energy technology  

Science Conference Proceedings (OSTI)

This paper has focused on the integration of renewable energy, specifically the solar energy resources into conventional electric grid and deployment of smart architecture of hybrid energy system in the user-centric pervasive computing concept in the ... Keywords: Kyoto protocol, NASA surface meteorology and solar energy data on solar energy resources, SAP-SOA energy optimization model, acceptance index, energy service companies, enterprise SAP-SOA net weaver architecture, enterprise resource planning, green house gas, market potential mappings, next generation smart-grid through pervasive computing, service-oriented-architecture, systems applications products in data processing

Aurobi Das; V. Balakrishnan

2009-11-01T23:59:59.000Z

285

NREL: Photovoltaics Research - Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaic Engineering Photovoltaic Engineering Photovoltaic (PV) Engineering at NREL supports commercial and emerging PV technology development. Our support covers the following three areas: Engineering Testing and Evaluation. We provide engineering testing and evaluation of PV products developed by companies during work sponsored by the U.S. Department of Energy (DOE). We determine if products meet performance criteria established by DOE for a company's contractual obligations. Standards Development. We support the development of national and international standards. Current work includes investigating methods of preconditioning cadmium telluride and copper indium gallium diselenide PV modules so that when they are tested for reporting conditions, the results are correlated with subsequent field measurements.

286

Hybrid simulation and optimization-based capacity planner for integrated photovoltaic generation with storage units  

Science Conference Proceedings (OSTI)

Unlike fossil-fueled generation, solar energy resources are geographically distributed and highly intermittent, which makes their direct control difficult and requires storage units. The goal of this research is to develop a flexible capacity planning ...

Esfandyar M. Mazhari; Jiayun Zhao; Nurcin Celik; Seungho Lee; Young-Jun Son; Larry Head

2009-12-01T23:59:59.000Z

287

Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

(The following text is derived from NREL's description of photovoltaic (The following text is derived from NREL's description of photovoltaic technology.)[1] Photovoltaic Panels Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual solar PV systems. Utility companies are also using PV technology for large

288

Solar photovoltaics for development applications  

DOE Green Energy (OSTI)

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

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

1993-08-01T23:59:59.000Z

289

Editorial: Photovoltaic Materials and Devices  

Science Conference Proceedings (OSTI)

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.

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

2012-01-01T23:59:59.000Z

290

Photovoltaic systems and applications  

DOE Green Energy (OSTI)

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.

Not Available

1982-01-01T23:59:59.000Z

291

Business developments of nonthermal solar technologies  

DOE Green Energy (OSTI)

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

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

1985-10-01T23:59:59.000Z

292

Photovoltaics as an operating energy system  

DOE Green Energy (OSTI)

In the short time since the discovery of the modern solar cell in 1954, terrestrial photovoltaic power system technology has matured in all areas, from collector reliability to system and subsystem design and operations. Today's PV systems are finding widespread use in powering loads where conventional sources are either unavailable, unreliable, or too costly. A broad range of applications is possible because of the modularity of the technology---it can be used to power loads ranging from less than a watt to several megawatts. This inherent modularity makes PV an excellent choice to play a major role in rural electrification in the developing world. The future for grid-connected photovoltaic systems is also very promising. Indications are that several of today's technologies, at higher production rates and in megawatt-sized installations, will generate electricity in the vicinity of $0.12/kWh in the near future. 12 refs., 3 figs.

Jones, G.J.; Post, H.N.; Thomas, M.G.

1988-01-01T23:59:59.000Z

293

Photovoltaic Manufacturing Technology (PVMaT) improvements for ENTECH`s concentrator module. Final technical report, 9 January 1991--14 April 1991  

DOE Green Energy (OSTI)

This final technical report documents ENTECH`s Phase 1 contract with Photovoltaic Manufacturing Technology (PVMaT) project. Under this project we prepared a detailed description of our current manufacturing process for making our unique linear Fresnel lens photovoltaic concentrator modules. In addition, we prepared a detailed description of an improved manufacturing process, which will simultaneously increase module production rates, enhance module quality, and substantially reduce module costs. We also identified potential problems in implementing the new manufacturing process, and we proposed solutions to these anticipated problems. Before discussing the key results of our program, however, we present a brief description of our unique photovoltaic technology. The key conclusion of our PVMAT Phase 1 study is that our module technology, without further breakthroughs, can realistically meet the near-term DOE goal of 12 cents/kWh levelized electricity cost, provided that we successfully implement the new manufacturing process at a production volume of at least 10 megawatts per year. The key recommendation from our Phase 1 study is to continue our PVMaT project into Phase 2A, which is directed toward the actual manufacturing technology development required for our new module production process. 15 refs.

O`Neill, M.J.; McDanal, A.J.; Perry, J.L.; Jackson, M.C.; Walters, R.R. [ENTECH, Inc., Dallas-Fort Worth Airport, TX (United States)

1991-11-01T23:59:59.000Z

294

Photovoltaics Overview: Fiscal Year 2001  

DOE Green Energy (OSTI)

In Fiscal Year 2001, for the third year in a row, the solar electric market grew at more than 30%. Fueling this growth is the U.S. photovoltaic industry - the companies that design, manufacture, install, operate, and maintain all components of solar generating systems. The messages of the U.S. PV industry roadmap are taken very seriously by the U.S. Department of Energy's Office of Solar Energy Technologies. Achieving industry's goals will demand aggressive work in fundamental and exploratory research, manufacturing, and system applications to reduce the cost of solar electric systems. This is an annual report of the DOE PV Program, FY2001.

Not Available

2002-02-01T23:59:59.000Z

295

Photovoltaic cell efficiency at elevated temperatures  

E-Print Network (OSTI)

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 ...

Ray, Katherine Leung

2010-01-01T23:59:59.000Z

296

Survey of U.S. Line-Connected Photovoltaic Systems  

Science Conference Proceedings (OSTI)

More than 200 line-connected photovoltaic (PV) systems are now operating in 27 states, totaling more than 11 MW. Experiences at these installations provide background for utility examination of PV technology as an opportunity for pollution-free generation, demand-side management, and potential business investment.

1989-03-15T23:59:59.000Z

297

Photovoltaic solar cell  

DOE Patents (OSTI)

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.

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

2013-11-26T23:59:59.000Z

298

Energy Performance Impacts from Competing Low-slope Roofing Choices and Photovoltaic Technologies.  

E-Print Network (OSTI)

??With such a vast quantity of space, commercial low-slope roofs offer significant potential for sustainable roofing technology deployment. Specifically, building energy performance can be improved… (more)

Nagengast, Amy L.

2013-01-01T23:59:59.000Z

299

Photovoltaic Systems  

Energy.gov (U.S. Department of Energy (DOE))

A photovoltaic (PV), or solar electric system, is made up of several photovoltaic solar cells. An individual PV cell is usually small, typically producing about 1 or 2 watts of power. To boost the...

300

Energy Generation by State, by Technology (2009) | OpenEI  

Open Energy Info (EERE)

Generation by State, by Technology (2009) Generation by State, by Technology (2009) Dataset Summary Description Provides annual energy generation for all states by fuel source (e.g. coal, gas, solar, wind) in 2009, reported in MWh. Also includes facility-level data (directly from EIA Form 923). Source NREL Date Released August 01st, 2010 (4 years ago) Date Updated Unknown Keywords coal EIA Energy Generation gas geothermal oil solar States wind Data application/vnd.ms-excel icon Energy Generation by Fuel Source and State, 2009 (xls, 5.9 MiB) application/msword icon Data dictionary for EIA 923 database (used to develop the NREL summary dataset) (doc, 239.6 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 2009 License License Other or unspecified, see optional comment below

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Technology Assessment for Next Generation PMU Mark A. Buckner  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Assessment for Next Assessment for Next Generation PMU Mark A. Buckner Oak Ridge National Laboratory bucknerma@ornl.gov 27/28 June 2013 Washington, DC DOE/OE Transmission Reliability Program 2 Project objective  Identify PMU technology migration paths  Develop an understanding of possible next- generation phasor-measurement devices  Develop a plan for designing and building a prototype next-generation PMU 3 Major Technical Accomplishments  Requirements Assessment Phase - Review current PMU functionality during normal and off-normal system operating conditions. - Identify limitations and deficiencies of current technologies. - Identify requirements for next generation PMUs ("If we could make things better, what would we improve?"). - Brainstorm options for next generation PMU. Identify top three

302

Department of Energy: Photovoltaics program - FY 1996  

DOE Green Energy (OSTI)

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

NONE

1996-12-31T23:59:59.000Z

303

Program on Technology Innovation: 2006-2010 Very High-Efficiency Photovoltaics Research at IRDEP—An EDF R&D and CNRS Joint Pro gram  

Science Conference Proceedings (OSTI)

This report covers the collaborative activities of Centre National de la Recherche Scientifique (CNRS) and Electricit de France (EDF) research and development (R&D) to advance the state of high-efficiency photovoltaics (PV) for the period of 2006-2010. This activity is principally concerned with basic research to enhance the long-term prospects of very high-efficiency PV, but it also includes possible near-term outcomes of improved conversion efficiency for existing technologies. The project has develope...

2011-08-31T23:59:59.000Z

304

Generation technologies for a carbon-constrained world  

SciTech Connect

Planning future generation investments can be difficult in the context of today's high fuel costs and regulatory uncertainties. Of particular concern are sharp changes in the price of natural gas and the possibility of future mandatory limits on the atmospheric release of CO{sub 2}. Research on advanced coal, nuclear, natural gas and renewable energy technologies promises to substantially increase the deployment of low and non-carbon-emitting generation options over the next two decades. The article looks in turn at developments in these technologies. Prudent power provides are likely to invest in a number of these advanced technologies, weighing the advantages and risks of each option to build a strategically balanced generation portfolio. 12 figs.

Douglas, J.

2006-07-01T23:59:59.000Z

305

Simulating the Next Generation of Energy Technologies | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Simulating the Next Generation of Energy Technologies Simulating the Next Generation of Energy Technologies Simulating the Next Generation of Energy Technologies September 22, 2010 - 6:40pm Addthis Former Under Secretary Koonin Former Under Secretary Koonin Director - NYU's Center for Urban Science & Progress and Former Under Secretary for Science When aerospace engineers design a new aircraft, they don't start with a prototype, they start with a computer. Computer simulations have revolutionized that industry, allowing engineers to make complex calculations and fine tune designs well before the first physical model is ever produced. All of this amounts to a production process that costs less and produces a commercial product much faster. It's an approach that has changed the way the aerospace industry operates, and it's one that we

306

Simulating the Next Generation of Energy Technologies | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Simulating the Next Generation of Energy Technologies Simulating the Next Generation of Energy Technologies Simulating the Next Generation of Energy Technologies September 22, 2010 - 6:40pm Addthis Former Under Secretary Koonin Former Under Secretary Koonin Director - NYU's Center for Urban Science & Progress and Former Under Secretary for Science When aerospace engineers design a new aircraft, they don't start with a prototype, they start with a computer. Computer simulations have revolutionized that industry, allowing engineers to make complex calculations and fine tune designs well before the first physical model is ever produced. All of this amounts to a production process that costs less and produces a commercial product much faster. It's an approach that has changed the way the aerospace industry operates, and it's one that we

307

NREL: Energy Analysis - Distributed Generation Energy Technology Capital  

NLE Websites -- All DOE Office Websites (Extended Search)

Capital Costs Capital Costs Transparent Cost Database Button The following charts indicate recent capital cost estimates for distributed generation (DG) renewable energy technologies. The estimates are shown in dollars per installed kilowatt of generating capacity or thermal energy capacity for thermal technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology capital cost estimates, please visit the Transparent Cost Database website for NREL's information

308

Approaches to Future Generation Photovoltaics and Solar Fuels: Quantum Dots, Arrays, and Quantum Dot Solar Cells  

Science Conference Proceedings (OSTI)

One potential, long-term approach to more efficient and lower cost future generation solar cells for solar electricity and solar fuels is to utilize the unique properties of quantum dots (QDs) to control the relaxation pathways of excited states to enhance multiple exciton generation (MEG). We have studied MEG in close-packed PbSe QD arrays where the QDs are electronically coupled in the films and thus exhibit good transport while still maintaining quantization and MEG. We have developed simple, all-inorganic solution-processable QD solar cells that produce large short-circuit photocurrents and power conversion efficiencies above 5% via nanocrystalline p-n junctions. These solar cells show QYs for photocurrent that exceed 100% in the photon energy regions where MEG is possible; the photocurrent MEG QYs as a function of photon energy match those determined via time-resolved spectroscopy Recent analyses of the major effect of MEG combined with solar concentration on the conversion efficiency of solar cells will also be discussed.

Semonin, O.; Luther, J.; Beard, M.; Johnson, J.; Gao, J.; Nozik, A.

2012-01-01T23:59:59.000Z

309

Optimizing Geographic Allotment of Photovoltaic Capacity in a Distributed Generation Setting: Preprint  

SciTech Connect

A multi-objective optimization was performed to allocate 2MW of PV among four candidate sites on the island of Lanai such that energy was maximized and variability in the form of ramp rates was minimized. This resulted in an optimal solution set which provides a range of geographic allotment alternatives for the fixed PV capacity. Within the optimal set, a tradeoff between energy produced and variability experienced was found, whereby a decrease in variability always necessitates a simultaneous decrease in energy. A design point within the optimal set was selected for study which decreased extreme ramp rates by over 50% while only decreasing annual energy generation by 3% over the maximum generation allocation. To quantify the allotment mix selected, a metric was developed, called the ramp ratio, which compares ramping magnitude when all capacity is allotted to a single location to the aggregate ramping magnitude in a distributed scenario. The ramp ratio quantifies simultaneously how much smoothing a distributed scenario would experience over single site allotment and how much a single site is being under-utilized for its ability to reduce aggregate variability. This paper creates a framework for use by cities and municipal utilities to reduce variability impacts while planning for high penetration of PV on the distribution grid.

Urquhart, B.; Sengupta, M.; Keller, J.

2012-09-01T23:59:59.000Z

310

Review of Electricity Generation Technology Lifecycle GHG Emissions  

Science Conference Proceedings (OSTI)

This paper presents and discusses results from a selection of published cross-technology assessments and two recent meta-analyses evaluating life-cycle greenhouse gas emissions from different electricity generation technologies. Differences in life-cycle GHG estimates reflect differing assessment methodologies, plant and equipment construction practices, power plant conversion efficiencies, power plant size and operating characteristics, practices in fuel preparation and transport, and system boundary as...

2010-01-29T23:59:59.000Z

311

Program on Technology Innovation: Power Generation and Water Sustainability  

Science Conference Proceedings (OSTI)

This brochure summarizes the Electric Power Research Institute (EPRI) Report 1015371, Program on Technology Innovation: An Energy/Water Sustainability Program for the Electric Power Industry. It presents a research planbased on business, economic, and technical considerationsthat would create and test new technology and science to overcome present and future constraints on thermoelectric and hydroelectric generation resulting from limited fresh water availability. The 10 year plan has an overall budget o...

2007-09-10T23:59:59.000Z

312

Installation, Operation, and Maintenance Costs for Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

Distributed generation (DG) is a broad term that encompasses both mature and emerging onsite power generation technologies with power output as small as 1 kW and as large as 20 MW. While the equipment or purchase cost of a DG system is very important, installation, operation, and maintenance (IOM) costs also are significant and often overlooked. This report reviews IOM costs for both mature and emerging DG technologies. Some equipment cost data is included for reference, but is not the focus of this repo...

2003-02-03T23:59:59.000Z

313

MHK Technologies/Water Current Generator Motor | Open Energy Information  

Open Energy Info (EERE)

Generator Motor Generator Motor < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Global Energies Inc Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description Simple Vertical Axis fully submerged open design flow through unit operating an onboard Pump unit that drives an on shore power generation system Slow turning swim through for Marine life Anchoring depends on topography and composition of resource bed Removable Scalable Please note that the Website is very old and needs updating In 2007 we hired Independent Engineering firm in Seattle to conduct extensive fluid dynamic testing or our design concepts and overall system Tests were completed much more extensively than we envisioned and were very positive for our needs and build out of a full size model We have been stuck and broke as it s all out of pocket in this position ever since as those Engineering costs were much more than anticipated

314

Photovoltaic application for disaster relief  

DOE Green Energy (OSTI)

Hurricanes, floods, tornados, and earthquakes are natural disasters that can happen at any time destroying homes, businesses, and natural surroundings. One such disaster, Hurricane Andrew, devastated South Florida leaving several hundred-thousand people homeless. Many people were without electrical service, functioning water and sewage systems, communications, and medical services for days, even weeks in the aftermath of the storm. Emergency management teams, the military, and countless public and private organizations staged a massive relief effort. Dependency on electrical utility power became a pronounced problem as emergency services were rendered to survivors and the rebuilding process started. Many of the energy needs of emergency management organizations, relief workers, and the general public can be satisfied with solar electric energy systems. Photovoltaic (PV) power generated from solar energy is quiet, safe, inexhaustible and pollution-free. Previously, photovoltaics have supplied emergency power for Hurricanes Hugo and Andrew, and the earthquake at Northridge in Southern California. This document focuses on photovoltaic technology and its application to disaster relief efforts.

Young, W.R. Jr.

1995-11-01T23:59:59.000Z

315

New Generating Technology to Reduce Greenhouse Gas Emissions  

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

Generating Technology to Generating Technology to Reduce Greenhouse Gas Emissions ENERGY INFORMATION ADMINISTRATION 30 TH BIRTHDAY CONFERENCE April 7, 2008 Linda G. Stuntz Stuntz, Davis & Staffier, P.C. Stuntz, Davis & Staffier, P.C. 2 The Target * Energy related emissions of CO2 will increase by about 16% in AEO 2008 Reference Case between 2006 and 2030 (5,890 MM metric tons to 6,859 MM metric tons). (#s from Caruso Senate Energy testimony of 3/4/08). * Last year, emissions from electricity generation were 40% of total energy-related GHG emissions. * Based on projected annual electricity demand growth of 1.1%. Stuntz, Davis & Staffier, P.C. 3 The Target Cont'd * 16.4 GW of new nuclear + 2.7 GW Uprates of existing plants less 4.5 GW of retirements. * Coal responsible for 54% of generation in 2030.

316

PVMaT Improvements in the BP Solarex Photovoltaic Module Manufacturing Technology: Annual Report, May 5, 1999 - June 15, 2000  

DOE Green Energy (OSTI)

This is the annual report for a 3-year PV program to continue to advance BP Solarex photovoltaic manufacturing technologies to design and implement a process that produces polycrystalline silicon PV modules that can be sold profitably for $2.00 per peak watt or less, and which increases the production capacity of the Frederick plant to at least 25 megawatts per year. The accomplishments discussed in this report include: (1) developed processes to produce high-purity SiF4 gas from a number of available commercial sources; (2) designed and implemented a new control system for casting; (3) verified relationship between higher minority-carrier lifetime in cast Si and cell efficiency; tracking material quality by measuring minority-carrier lifetime for each production casting; (4) reduced the wire-saw pitch to 450 microns with no loss in downstream yield; (5) demonstrated 8% improvement in average cell power on pre-production trial lots using PECVD silicon nitride; (6) developed a new EVA formation and demonstrated a 6-minute process to achieve adequate cure of PV modules in standard lamination equipment; (7) designed, purchased, and installed a new automated assembly line for large-area modules; and (8) implemented a factory-wide data collection and tracking system; production volumes and performance parameters are now monitored in real time through the local area network.

Wohlgemuth, J.; Shea, S. (BP Solarex)

2001-03-12T23:59:59.000Z

317

Technical Assessment Guide (TAG) - Power Generation and Storage Technology Options  

Science Conference Proceedings (OSTI)

The EPRI Technical Assessment Guide (TAG)Power Generation and Storage Technology Options helps energy company decision makers optimize capital investments in power generation and energy storage infrastructure. The 2009 TAG has been significantly enhanced. The following topics are among those that are new or enhanced: several options on CO2 capture controls and costs for existing retrofits and for new Pulverized Coal and Combustion Turbine Combined Cycle plants; several options on hybrid and dry cooling f...

2009-12-11T23:59:59.000Z

318

Advanced NOx Emissions Control: Control Technology - Second Generation  

NLE Websites -- All DOE Office Websites (Extended Search)

Second Generation Advanced Reburning Second Generation Advanced Reburning General Electric - Energy and Environmental Research Corporation (GE-EER) is carrying out a two Phase research program to develop novel Advanced Reburning (AR) concepts for high efficiency and low cost NOx control from coal-fired utility boilers. AR technologies are based on combination of basic reburning and N-agent/promoter injections. Phase I of the project was successfully completed and EER was selected to continue to develop AR technology during Phase II. Phase I demonstrated that AR technologies are able to provide effective NOx control for coal-fired combustors. Three technologies were originally envisioned for development: AR-Lean, AR-Rich, and Multiple Injection AR (MIAR). Along with these, three additional technologies were identified during the project: reburning plus promoted SNCR; AR-Lean plus promoted SNCR; and AR-Rich plus promoted SNCR. The promoters are sodium salts, in particular sodium carbonate. These AR technologies have different optimum reburn heat input levels and furnace temperature requirements. For full scale application, an optimum technology can be selected on a boiler-specific basis depending on furnace temperature profile and regions of injector access.

319

Technological development under global warning : roadmap of the coal generation technology  

E-Print Network (OSTI)

This thesis explores the measures for the Japanese electric power utilities to meet the Kyoto Target, and the technological development of the coal thermal power generation to meet the further abatement of the carbon dioxide ...

Furuyama, Yasushi, 1963-

2004-01-01T23:59:59.000Z

320

Sandia National Laboratory Photovoltaic Design Resources | Open Energy  

Open Energy Info (EERE)

Sandia National Laboratory Photovoltaic Design Resources Sandia National Laboratory Photovoltaic Design Resources Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Design Resources at Sandia National Laboratories Agency/Company /Organization: Sandia National Laboratories Sector: Energy Focus Area: Renewable Energy, Solar Topics: Pathways analysis Website: www.sandia.gov/ References: Sandia's Photovoltaic Research and Development Program [1] Sandia National Laboratories' Photovoltaic Research and Development program works with industry and academia to accelerate development and acceptance of technologies for photovoltaic energy systems. The program has published a series of handbooks and booklets that describe design guidelines for stand-alone photovoltaic system installations, photovoltaic water pumping systems, and evaluating photvoltaic applications

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Sandia National Laboratory Photovoltaic Design Resources | Open Energy  

Open Energy Info (EERE)

Sandia National Laboratory Photovoltaic Design Resources Sandia National Laboratory Photovoltaic Design Resources (Redirected from Photovoltaic Design Resources at Sandia National Laboratories) Jump to: navigation, search Tool Summary Name: Photovoltaic Design Resources at Sandia National Laboratories Agency/Company /Organization: Sandia National Laboratories Sector: Energy Focus Area: Renewable Energy, Solar Topics: Pathways analysis Website: www.sandia.gov/ References: Sandia's Photovoltaic Research and Development Program [1] Sandia National Laboratories' Photovoltaic Research and Development program works with industry and academia to accelerate development and acceptance of technologies for photovoltaic energy systems. The program has published a series of handbooks and booklets that describe design guidelines for stand-alone photovoltaic system installations,

322

Impacts of Variability and Uncertainty in Solar Photovoltaic Generation at Multiple Timescales  

SciTech Connect

The characteristics of variability and uncertainty of PV solar power have been studied extensively. These characteristics can create challenges for system operators who must ensure a balance between generation and demand while obeying power system constraints at the lowest possible cost. A number of studies have looked at the impact of wind power plants, and some recent studies have also included solar PV. The simulations that are used in these studies, however, are typically fixed to one time resolution. This makes it difficult to analyze the variability across several timescales. In this study, we use a simulation tool that has the ability to evaluate both the economic and reliability impacts of PV variability and uncertainty at multiple timescales. This information should help system operators better prepare for increases of PV on their systems and develop improved mitigation strategies to better integrate PV with enhanced reliability. Another goal of this study is to understand how different mitigation strategies and methods can improve the integration of solar power more reliably and efficiently.

Ela, E.; Diakov, V.; Ibanez, E.; Heaney, M.

2013-05-01T23:59:59.000Z

323

Energy 101: Solar Photovoltaics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

101: Solar Photovoltaics 101: Solar Photovoltaics Energy 101: Solar Photovoltaics February 10, 2011 - 5:29pm Addthis Learn more about photovoltaic systems that convert light energy into electricity. Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs What are the key facts? The literal translation of the word photovoltaic is light-electricity. Photovoltaic systems generate power without pollution - and recent advancements have greatly increased their efficiency. Enough energy from the sun hits the earth every hour to power the planet for an entire year-and solar photovoltaic (PV) systems are a clean, cost-effective way to harness that power for homes and businesses. The literal translation of the word photovoltaic is light-electricity-and this is exactly what photovoltaic materials and devices do-they convert

324

Photovoltaic Geographical Information System | Open Energy Information  

Open Energy Info (EERE)

Photovoltaic Geographical Information System Photovoltaic Geographical Information System Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Geographical Information System Focus Area: Renewable Energy Topics: Opportunity Assessment & Screening Website: re.jrc.ec.europa.eu/pvgis/ Equivalent URI: cleanenergysolutions.org/content/photovoltaic-geographical-information Language: English Policies: Deployment Programs DeploymentPrograms: Demonstration & Implementation This tool provides a geographical inventory of solar energy resources and an assessment of the electricity generation from photovoltaic systems in Europe, Africa, and southwest Asia. The tools allows for analysis of the technical, environmental, and socio-economic factors of solar electricity generation. Users may access maps and posters generated using the tool, as

325

Renewable Energy Technology Guide - 2012  

Science Conference Proceedings (OSTI)

First published in 2000 as the Renewable Energy Technical Assessment Guide—TAG-RE, the Electric Power Research Institute’s (EPRI’s) annual Renewable Energy Technology Guide provides a consistent basis for evaluating the economic feasibility of renewable generation technologies. These technologies include wind, solar photovoltaic (PV), solar thermal, biomass, municipal solid waste, geothermal, and emerging ocean energy conversion ...

2012-12-20T23:59:59.000Z

326

Renewable Energy Technology Guide: 2010  

Science Conference Proceedings (OSTI)

First published in 2000 as the Renewable Energy Technical Assessment GuideTAG-RE, the annual Electric Power Research Institute (EPRI) Renewable Energy Technology Guide provides a consistent basis for evaluating the economic feasibility of renewable generation technologies, including wind, solar photovoltaic (PV), solar thermal, biomass, geothermal, and emerging ocean energy conversion technologies.

2010-12-31T23:59:59.000Z

327

Generating Potable Water from Fuel Cell Technology Juan E. Tibaquir  

E-Print Network (OSTI)

Generating Potable Water from Fuel Cell Technology Juan E. Tibaquirá Associate Professor Electricity Heat Water #12;Second Forum on Energy & Water Sustainability April 10th /09 6 PEM Fuel Cells for research 2. Fuel-cell fundamentals 3. Implications of using water from fuel cells in a society

Keller, Arturo A.

328

Application of Soft-switching Technology in the Photovoltaic Array Simulator  

Science Conference Proceedings (OSTI)

The PV array simulator is the analog DC input device which is indispensable in the development and debugging of the solar PV grid-connected inverter. As the inverter switching frequency becomes larger and larger, the simulator as the analog input also ... Keywords: PV array simulator, Soft-switching technology, Zero-voltage zero-current switching phase-shifted full-bridge circuit

Chen Ya-ai, Shi Yu-teng

2012-07-01T23:59:59.000Z

329

Program on Technology Innovation: Identification of Embedded Applications for New and Emerging Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

Novel distributed generation (DG) technologies hold the potential of serving the needs of a variety of end-use applications, both existing as well as emerging. This report describes some of the emerging end-use applications and evaluates their potential for integration with distributed generation applications. The analysis addresses their value in terms of modularity, environmental friendliness, and favorable production economics.

2006-11-16T23:59:59.000Z

330

NREL: Energy Analysis - Distributed Generation Energy Technology Operations  

NLE Websites -- All DOE Office Websites (Extended Search)

Operations and Maintenance Costs Operations and Maintenance Costs Transparent Cost Database Button The following charts indicate recent operations and maintenance (O&M) cost estimates for distributed generation (DG) renewable energy technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology operations and maintenance estimates, please visit the Transparent Cost Database website for NREL's information regarding vehicles, biofuels, and electricity generation.

331

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

Hot Electron Photovoltaics Using Low Cost Materials and Simple Cell Design Lawrence Berkeley National Laboratory. Contact LBL About This Technology

332

Cost and Performance Assumptions for Modeling Electricity Generation Technologies  

Science Conference Proceedings (OSTI)

The goal of this project was to compare and contrast utility scale power plant characteristics used in data sets that support energy market models. Characteristics include both technology cost and technology performance projections to the year 2050. Cost parameters include installed capital costs and operation and maintenance (O&M) costs. Performance parameters include plant size, heat rate, capacity factor or availability factor, and plant lifetime. Conventional, renewable, and emerging electricity generating technologies were considered. Six data sets, each associated with a different model, were selected. Two of the data sets represent modeled results, not direct model inputs. These two data sets include cost and performance improvements that result from increased deployment as well as resulting capacity factors estimated from particular model runs; other data sets represent model input data. For the technologies contained in each data set, the levelized cost of energy (LCOE) was also evaluated, according to published cost, performance, and fuel assumptions.

Tidball, R.; Bluestein, J.; Rodriguez, N.; Knoke, S.

2010-11-01T23:59:59.000Z

333

Direct Thin Film Path to Low Cost, Large Area III-V Photovoltaics  

A team of Berkeley Lab researchers has invented the first vapor-liquid-solid (VLS) growth technology yielding III-V photovoltaics. The photovoltaics ...

334

Nanostructured Photovoltaics: - Home - Energy Innovation Portal  

Atomic Layer Deposition Thin Film Technology ... Photovoltaic manufacturing is an emerging industry that promises a carbon-free, nearly limitless source of energy ...

335

Photovoltaic manufacturing technology monolithic amorphous silicon modules on continuous polymer substrates: Final technical report, July 5, 1995--December 31, 1999  

DOE Green Energy (OSTI)

Iowa Thin Film Technologies is completing a three-phase program that has increased throughput and decreased costs in nearly all aspects of its thin-film photovoltaic manufacturing process. The overall manufacturing costs have been reduced by 61 percent through implementation of the improvements developed under this program. Development of the ability to use a 1-mil substrate, rather than the standard 2-mil substrate, results in a 50 percent cost-saving for this material. Process development on a single-pass amorphous silicon deposition system has resulted in a 37 percent throughput improvement. A wide range of process and machine improvements have been implemented on the transparent conducting oxide deposition system. These include detailed parameter optimization of deposition temperatures, process gas flows, carrier gas flows, and web speeds. An overall process throughput improvement of 275 percent was achieved based on this work. The new alignment technique was developed for the laser scriber and printer systems, which improved registration accuracy from 100 microns to 10 microns. The new technique also reduced alignment time for these registration systems significantly. This resulted in a throughput increase of 75 percent on the scriber and 600 percent on the printer. Automated techniques were designed and implemented for the module assembly processes. These include automated busbar attachment, roll-based lamination, and automated die cutting of finished modules. These processes were previously done by hand labor. Throughput improvements ranged from 200 percent to 1200 percent, relative to hand labor rates. A wide range of potential encapsulation materials were evaluated for suitability in a roll lamination process and for cost-effectiveness. A combination material was found that has a cost that is only 10 percent of the standard EVA/Tefzel cost and is suitable for medium-lifetime applications. The 20-year lifetime applications still require the more expensive material.

Jeffrey, F.

2000-03-28T23:59:59.000Z

336

Power Quality and Harmonic Impacts of Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

The PQ TechWatch report series builds on EPRI's broad expertise and power quality testing and evaluation work to provide a vital flow of data, including important information on emerging trends powering ebusinesses and developments in next-generation power quality mitigation and energy storage technologies.This PQ TechWatch aims to present an overview of power quality impacts resulting from operation of DG technologies on the grid. An emphasis on harmonic effects is included here. Concerns in this area a...

2010-12-14T23:59:59.000Z

337

Economic Feasibility of Recycling Photovoltaic Modules  

Science Conference Proceedings (OSTI)

The market for photovoltaic (PV) electricity generation has boomed over the last decade, and its expansion is expected to continue with the development of new technologies. Taking into consideration the usage of valuable resources and the generation of emissions in the life cycle of photovoltaic technologies dictates proactive planning for a sound PV recycling infrastructure to ensure its sustainability. PV is expected to be a 'green' technology, and properly planning for recycling will offer the opportunity to make it a 'double-green' technology - that is, enhancing life cycle environmental quality. In addition, economic feasibility and a sufficient level of value-added opportunity must be ensured, to stimulate a recycling industry. In this article, we survey mathematical models of the infrastructure of recycling processes of other products and identify the challenges for setting up an efficient one for PV. Then we present an operational model for an actual recycling process of a thin-film PV technology. We found that for the case examined with our model, some of the scenarios indicate profitable recycling, whereas in other scenarios it is unprofitable. Scenario SC4, which represents the most favorable scenario by considering the lower bounds of all costs and the upper bound of all revenues, produces a monthly profit of $107,000, whereas the least favorable scenario incurs a monthly loss of $151,000. Our intent is to extend the model as a foundation for developing a framework for building a generalized model for current-PV and future-PV technologies.

Choi, J.K.; Fthenakis, V.

2010-12-01T23:59:59.000Z

338

Power Quality Impacts of Distributed Generation: Survey of Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

With the advent of deregulation, distributed generation (DG) will play an increasing role in electric distribution systems. Various new types of DG technologies, such as microturbines and fuel cells, now are being developed in addition to the more traditional solar and wind power. A common belief among developers is that DG will improve the local power quality. This potential for better quality is cited as one of the attributes that add value to the installation of distributed generators. In some cases, ...

2000-11-08T23:59:59.000Z

339

Photovoltaic product directory and buyers guide  

DOE Green Energy (OSTI)

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)

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

1981-06-01T23:59:59.000Z

340

The Potential for Thin-Film Photovoltaic Cells  

Science Conference Proceedings (OSTI)

In this paper the potential for photovoltaic power generation is considered in terms of the photovoltaic generation facilities and the facflities for manufacturing the cell material. Significant quantities of electricity require very-large-scale manufacturing ...

T. W. Fraser Russell; Vikram L. Dalal

1981-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Cost and Performance Assumptions for Modeling Electricity Generation Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Cost and Performance Cost and Performance Assumptions for Modeling Electricity Generation Technologies Rick Tidball, Joel Bluestein, Nick Rodriguez, and Stu Knoke ICF International Fairfax, Virginia Subcontract Report NREL/SR-6A20-48595 November 2010 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Cost and Performance Assumptions for Modeling Electricity Generation Technologies Rick Tidball, Joel Bluestein, Nick Rodriguez, and Stu Knoke ICF International Fairfax, Virginia NREL Technical Monitor: Jordan Macknick

342

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

E-Print Network (OSTI)

area of photovoltaic and other clean energy technologies.Energy recently hosted a day-long public workshop on the variability of photovoltaic (photovoltaic power plants into the utility system. Nicholas Miller is Director, Energy

Mills, Andrew

2010-01-01T23:59:59.000Z

343

Pennies a day: financing early deployment of photovoltaic utility applications through a user subsidy  

DOE Green Energy (OSTI)

Calculations indicate that the benefits of photovoltaic generation are unlikely to be soon realized unless the photovoltaic alternative is supported, as other energy technologies have been, by some sort of economic subsidy. This report describes the results of a preliminary investigation of one way of providing the required subsidy: simply allowing the utility company to recover the additional cost of photovoltaic generation through increases in charges to customers. As is shown, a very substantial early penetration of photovoltaic generation capacity into the generation mix of a utility system could be financed by quite modest increases in the annual electric bills of consumers. The analysis procedure used assumes a photovoltaic plant deployment rate and computes the total additional cost of electricity generation that would result from the deployment of the photovoltaic plants rather than of equivalent fossil-fuel plants. This additional annual cost is then apportioned, on a per kWh basis, among all utility customers, and the impact on the average residential customer's electric bill is determined.

Siegel, B.

1978-05-01T23:59:59.000Z

344

Photovoltaics (Fact Sheet)  

SciTech Connect

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.

Not Available

2011-10-01T23:59:59.000Z

345

Photovoltaics (Fact Sheet)  

SciTech Connect

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.

Not Available

2012-11-01T23:59:59.000Z

346

Program on Technology Innovation: Ion Transport Membrane Oxygen Technology for Advanced Power Generation Systems  

Science Conference Proceedings (OSTI)

This report documents an Electric Power Research Institute (EPRI) Technology Innovation (TI) project that provides background information and increased understanding to EPRI members of the potential benefits of integrating ion transport membrane (ITM) technology for oxygen production with integrated gasification combined cycle (IGCC) and oxyfuel combustion pulverized coal power plants. This TI project also generated new learning by conducting literature reviews of existing and new air separation technolo...

2009-12-21T23:59:59.000Z

347

Pioneering NREL research has been instrumental in developing cadmium telluride (CdTe) and other thin-film photovoltaic (PV) technologies to the point where they are poised to take off  

E-Print Network (OSTI)

offset the cost of additional manufacturing capacity. In addition, NREL's new Science and Technology near-term manufacturing, building the knowledge and technology base for future manufacturing on. PIX 16735 Thin-Film Manufacturing Process Gives Edge to Photovoltaic Start-Up Abound Solar

348

Cast polycrystalline silicon photovoltaic module manufacturing technology improvements. Semiannual subcontract report, January 1--June 30, 1995  

DOE Green Energy (OSTI)

The objective of this three-year program is to advance Solarex`s cast polycrystalline silicon manufacturing technology, reduce module production cost, increase module performance and expand Solarex`s commercial production capacities. Two specific objectives of this program are to reduce the manufacturing cost for polycrystalline silicon PV modules to less than $1.20/watt and to increase the manufacturing capacity by a factor of three. To achieve these objectives, Solarex is working in the following technical areas: casting, wire saws, cell process, module assembly, frameless module development, and automated cell handling. Accomplishments reported include: Cast first successful larger ingot producing 73% larger volume of usable Si; Increased the size of the ingot even further and cast an ingot yielding nine 11.4 {times} 11.4 cm bricks, representing a 125% increase in usable Si from a single casting; Operated the wire-saw in a semi-operational mode, producing 459,000 wafers at 94.1% overall yield; Reduced the cost of wire-saw consumables, spare parts, and waste disposal; Developed a cost-effective back surface field process that increases cell efficiency by 5% and began production trials; Developed a plan for increasing the capacity in the module assembly area; Completed qualification testing of modules built using Spire`s automated tabbing and stringing machine; Selected, tested, and qualified a low-cost electrical termination system; Completed long-term UV testing of experimental back sheets; Qualified the structure and adhesive-tape system for mounting frameless modules; and ARRI completed a study of the fracture properties of cast polycrystalline Si wafers and provided the information necessary to calculate the maximum stresses allowable during wafer handling.

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

1996-02-01T23:59:59.000Z

349

Photovoltaic cell  

DOE Patents (OSTI)

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

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

1984-11-27T23:59:59.000Z

350

Next Generation CANDU Technology: Competitive Design for the Nuclear Renaissance  

SciTech Connect

AECL has developed the design for a next generation of CANDU{sup R} plants by marrying a set of enabling technologies to well-established successful CANDU features. The basis for the design is to replicate or adapt existing CANDU components for a new core design. By adopting slightly enriched uranium fuel, a core design with light water coolant, heavy water moderator and reflector has been defined, based on the existing CANDU fuel channel module. This paper summarizes the main features and characteristics of the reference next-generation CANDU design. The progress of the next generation of CANDU design program in meeting challenging cost, schedule and performance targets is described. AECL's cost reduction methodology is summarized as an integral part of the design optimization process. Examples are given of cost reduction features together with enhancement of design margins. (authors)

Hopwood, J.M.; Hedges, K.R.; Pakan, M. [Atomic Energy of Canada Ltd., Ontario (Canada)

2002-07-01T23:59:59.000Z

351

Photovoltaic array performance model.  

DOE Green Energy (OSTI)

This document summarizes the equations and applications associated with the photovoltaic array performance model developed at Sandia National Laboratories over the last twelve years. Electrical, thermal, and optical characteristics for photovoltaic modules are included in the model, and the model is designed to use hourly solar resource and meteorological data. The versatility and accuracy of the model has been validated for flat-plate modules (all technologies) and for concentrator modules, as well as for large arrays of modules. Applications include system design and sizing, 'translation' of field performance measurements to standard reporting conditions, system performance optimization, and real-time comparison of measured versus expected system performance.

Kratochvil, Jay A.; Boyson, William Earl; King, David L.

2004-08-01T23:59:59.000Z

352

Photovoltaic Energy Program Overview Fiscal Year 1996  

DOE Green Energy (OSTI)

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

NONE

1997-05-01T23:59:59.000Z

353

Photovoltaics: Program overview, fiscal year 1992  

DOE Green Energy (OSTI)

The US DOE`s Photovoltaics program has helped photovoltaic technologies evolve from materials and concepts in the laboratories to competitive products rolling off automated assembly lines. This document is divided into the following sections: 1992 PV program accomplishments, expanding markets for photovoltaic systems, developing today`s systems with utilities and industry, working with industry to advance the technology, cooperative research to improve materials and devices, selected achievements in cooperative R and D, and PV program services. Figs, tabs.

Not Available

1993-03-01T23:59:59.000Z

354

Photovoltaic power systems market identification and analysis. Final report, January 1977--February 1978  

DOE Green Energy (OSTI)

This report summarizes the work done by InterTechnology/Solar Corporation, its consultants, Mobil Tyco Solar Energy Corporation and the University of Delaware Institute for Energy Conversion, and its consultants, during the marketing analysis of near and intermediate term photovoltaic power applications. To obtain estimates of the domestic and foreign market potential for photovoltaically powered devices two approaches were used. First, the study was identifying then screening all possible photovoltaic power supply applications. This approach encompassed the first two tasks of the study: (1) a survey of the current uses of photovoltaic systems, both domestic and international, and a projection of the usage of those systems into the future; and (2) a new idea generation task which attempted to come up with new ways of using photovoltaic power. Second, the study required in-depth analysis of key near-term and intermediate-term photovoltaic applications identified during the first phase to obtain reasonable estimates of photovoltaic market potential. This process encompassed the third and fourth tasks of the analysis: (3) refinement of ideas generated in Task 2 so that certain products/applications could be identified, the product defined and a market survey carried out; and (4) development of a detailed product scenario which forecasts sales, barriers to market acceptance, and technical innovationsrequired for proper introduction of the products. The work performed and findings of each task are presented.

Not Available

1979-05-01T23:59:59.000Z

355

SunShot Initiative: Photovoltaics  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaics Photovoltaics The U.S. Department of Energy (DOE) aggressively supports development of low-cost, high-efficiency photovoltaic (PV) technologies through the SunShot Initiative, which seeks to make solar electricity cost-competitive with other sources of energy by 2020. Get the Adobe Flash Player to see this video. Text Alternative The DOE SunShot Program advances PV efforts by: Funding research and development in multiple photovoltaic technologies Awarding funds to PV projects with industry partners like solar companies, universities, and national laboratories through a competitive process. Learn more about ways DOE is advancing concentrating solar power R&D, reducing grid integration costs and technology risks, and reducing soft costs associated with solar installations.

356

Photovoltaics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Photovoltaics Photovoltaics August 16, 2013 - 4:47pm Addthis Photovoltaic (PV) materials and devices convert sunlight into electrical energy, and PV cells are commonly known as...

357

Energy Basics: Photovoltaics  

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

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

358

Photovoltaic-based Demand Response and Ancillary Services  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaic-based Demand Response and Ancillary Services Photovoltaic-based Demand Response and Ancillary Services Speaker(s): Bill Vogel Date: June 22, 2012 - 1:00pm Location: 90-1099 Seminar Host/Point of Contact: David S. Watson This presentation describes innovations in intelligent micro inverters for use with photovoltaic (PV) systems. The micro-inverters enable remotely adjustable phase angles (+/- up to 45 degrees). The technology includes dynamic impedance matching and ultra-low cost dynamic reactive power management of digital power sources. These attributes can help mitigate grid balancing challenges introduced by most renewable generation resources as we strive to reach aggressive renewable portfolio standards and their associated needs for voltage support and ancillary services. The software-enabled device eliminates several pieces of heavy equipment needed

359

Organic Photovoltaic Cells with an Electric Field Integrally ...  

Vehicles and Fuels; Wind Energy; Partners (27) Visual Patent ... This method is applicable to organic photovoltaic cell manufacturers; Technology Status. Technology ID

360

Presented at the 21st European Photovoltaic Solar Energy Conference, Dresden,Germany, 4-8 September 2006 ENVIRONMENTAL IMPACTS OF PV ELECTRICITY GENERATION -  

E-Print Network (OSTI)

Presented at the 21st European Photovoltaic Solar Energy Conference, Dresden,Germany, 4-8 September (Franklin #12;Presented at the 21st European Photovoltaic Solar Energy Conference, Dresden,Germany, 4;Presented at the 21st European Photovoltaic Solar Energy Conference, Dresden,Germany, 4-8 September 2006 0 5

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Characterization of alternative electric generation technologies for the SPS comparative assessment: volume 2, central-station technologies  

DOE Green Energy (OSTI)

The SPS Concept Development and Evaluation Program includes a comparative assessment. An early first step in the assessment process is the selection and characterization of alternative technologies. This document describes the cost and performance (i.e., technical and environmental) characteristics of six central station energy alternatives: (1) conventional coal-fired powerplant; (2) conventional light water reactor (LWR); (3) combined cycle powerplant with low-Btu gasifiers; (4) liquid metal fast breeder reactor (LMFBR); (5) photovoltaic system without storage; and (6) fusion reactor.

Not Available

1980-08-01T23:59:59.000Z

362

Photovoltaic Energy Program overview, fiscal year 1997  

DOE Green Energy (OSTI)

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

NONE

1998-02-01T23:59:59.000Z

363

NEXT GENERATION SURFACTANTS FOR IMPROVED CHEMICAL FLOODING TECHNOLOGY  

NLE Websites -- All DOE Office Websites (Extended Search)

NEXT GENERATION SURFACTANTS NEXT GENERATION SURFACTANTS FOR IMPROVED CHEMICAL FLOODING TECHNOLOGY FINAL REPORT June 1, 2010 - May 31, 2012 Laura L Wesson, Prapas Lohateeraparp, Jeffrey H. Harwell, and Bor-Jier Shiau October 2012 DE-FE0003537 University of Oklahoma Norman, OK 73019-0430 ii DISCLAIMER This report is prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name,

364

High-throughput manufacturing of thin-film CdS/CdTe photovoltaic modules. Annual subcontract report, 16 September 1996--15 January 1998  

DOE Green Energy (OSTI)

Cadmium telluride (CdTe) is recognized as one of the leading materials for low-cost photovoltaic modules. Solar Cells, Inc., has developed this technology and is scaling its pilot production capabilities to a multi-megawatt level. The Photovoltaic Manufacturing Technology (PVMaT) subcontract supports these efforts. Activities during the third phase of the program concentrated on process development, equipment design and testing, quality assurance, ES and H programs, and large-scale next-generation coating-system prototype development. These efforts broadly addressed the issues of the manufacturing process for producing thin-film, monolithic CdS/CdTe photovoltaic modules.

Sandwisch, D.W. [Solar Cells, Inc., Toledo, OH (United States)

1998-08-01T23:59:59.000Z

365

MHK Technologies/Turbo Ocean Power Generator MadaTech 17 | Open...  

Open Energy Info (EERE)

Ocean Power Generator MadaTech 17 < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Turbo Ocean Power Generator MadaTech 17.jpg Technology...

366

FEMP--Photovoltaics  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Photovoltaics is a technology that converts radiant Photovoltaics is a technology that converts radiant light energy (photo) to electricity (voltaics). Photo- voltaic (PV) cells are the basic building blocks of this energy technology. PV cells (also called solar cells) are made of semicon- ductor materials, most typically silicon. The amount of electricity a PV cell produces depends on its size, its conversion efficiency (see box on reverse), and the intensity of the light source. Sunlight is the most common source of the energy used by PV cells to produce an electric current. It takes just a few PV cells to produce enough elec- tricity to power a small watch or solar calculator. For more power, cells are connected together to form larger units called modules. Modules, in turn, are connected to form arrays, and arrays can be

367

Photovoltaic Cells  

Energy.gov (U.S. Department of Energy (DOE))

Photovoltaic (PV) cells, or solar cells, take advantage of the photoelectric effect to produce electricity. PV cells are the building blocks of all PV systems because they are the devices that...

368

Photovoltaics I  

Science Conference Proceedings (OSTI)

Mar 13, 2012 ... TiO2 is an attractive material for dye sensitized solar cells (DSSC) ... Second, I will discuss our design of photovoltaic (PV) materials that exploit ...

369

NREL: Photovoltaics Research - Accomplishments in Photovoltaic  

NLE Websites -- All DOE Office Websites (Extended Search)

Accomplishments in Photovoltaic Manufacturing R&D Accomplishments in Photovoltaic Manufacturing R&D Successful efforts within the PV Manufacturing R&D Project were recognized by the solar industry. Key highlights from the project are summarized below. Overall, the project resulted in a more than 50% reduction in manufacturing costs and a substantial return on investment for both the U.S. government and the industries involved. A number of companies participating in the project were able to make technological advances that helped them attract millions of dollars in private investment capital. The project focused on four primary areas of solar manufacturing: Solar cells and modules Manufacturing processes Systems integration System components. Solar Cells and Modules Advances in solar cells and modules were made that significantly reduced

370

GE power generation technology challenges for advanced gas turbines  

SciTech Connect

The GE Utility ATS is a large gas turbine, derived from proven GEPG designs and integrated GEAE technology, that utilizes a new turbine cooling system and incorporates advanced materials. This system has the potential to achieve ATS objectives for a utility sized machine. Combined with use of advanced Thermal Barrier Coatings (TBC`s), the new cooling system will allow higher firing temperatures and improved cycle efficiency that represents a significant improvement over currently available machines. Developing advances in gas turbine efficiency and emissions is an ongoing process at GEPG. The third generation, ``F`` class, of utility gas turbines offers net combined cycle efficiencies in the 55% range, with NO{sub x} programs in place to reduce emissions to less than 10 ppM. The gas turbines have firing temperatures of 2350{degree}F, and pressure ratios of 15 to 1. The turbine components are cooled by air extracted from the cycle at various stages of the compressor. The heat recovery cycle is a three pressure steam system, with reheat. Throttle conditions are nominally 1400 psi and 1000{degree}F reheat. As part of GEPG`s ongoing advanced power generation system development program, it is expected that a gas fired advanced turbine system providing 300 MW power output greater than 58% net efficiency and < 10 ppM NO{sub x} will be defined. The new turbine cooling system developed with technology support from the ATS program will achieve system net efficiency levels in excess of 60%.

Cook, C.S.; Nourse, J.G.

1993-11-01T23:59:59.000Z

371

Review of Operational Water Consumption and Withdrawal Factors for Electricity Generating Technologies  

DOE Green Energy (OSTI)

Various studies have attempted to consolidate published estimates of water use impacts of electricity generating technologies, resulting in a wide range of technologies and values based on different primary sources of literature. The goal of this work is to consolidate the various primary literature estimates of water use during the generation of electricity by conventional and renewable electricity generating technologies in the United States to more completely convey the variability and uncertainty associated with water use in electricity generating technologies.

Macknick, J.; Newmark, R.; Heath, G.; Hallett, K. C.

2011-03-01T23:59:59.000Z

372

NREL: Photovoltaics Research - Webmaster  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials, Devices, & Processes Testing & Analysis Facilities National Center for Photovoltaics...

373

SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaic Supply Chain and Photovoltaic Supply Chain and Cross-Cutting Technologies to someone by E-mail Share SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Facebook Tweet about SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Twitter Bookmark SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Google Bookmark SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Delicious Rank SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Digg Find More places to share SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on AddThis.com... Concentrating Solar Power Photovoltaics Research & Development Competitive Awards Diversity in Science and Technology Advances National Clean Energy

374

Amorphous silicon photovoltaic manufacturing technology, Phase 2A. Semiannual subcontract report, 1 May 1993--31 October 1993  

DOE Green Energy (OSTI)

Utility Power Group (UPG) and its lower-tier subcontractor, Advanced Photovoltaic Systems, Inc. (APS), continued work to develop their manufacturing lines. UPG focused on the automation of encapsulation and termination processes developed in Phase 1. APS focused on completion of the encapsulation and module design tasks while continuing process quality control, and automation projects. The goal is to produce 55-W (stabilized) EP50 modules in a new facility.

Duran, G.; Mackamul, K.; Metcalf, D. [Utility Power Group, Chatsworth, CA (United States); Volltrauer, H. [Advanced Photovoltaic Systems, Inc., Princeton, NJ (United States)

1994-04-01T23:59:59.000Z

375

Mission analysis of photovoltaic solar energy systems. Final report. Volume I. Summary  

SciTech Connect

A summary report of a study program whose principal objective was to develop methods for the technical and economic evaluation of potential missions (applications) for photovoltaic solar energy conversion in the southwestern United States in the 1980 to 2000 period is presented. A secondary objective was to apply the methodology, when developed, to the evaluation of a number of illustrative examples of candidate missions in order to obtain at least a preliminary indication of the competitive position of the photovoltaic technology in the future energy economy of the Southwest. Because of their large potential significance, most of the effort in the study was devoted to two main classes of missions: on-site applications (in which the photovoltaic system serves an electric load point that is colocated with the system) and central station power plant applications. A smaller amount of attention was given to the electrolytic production of hydrogen with electric power generated by the photovoltaic conversion of solar energy. (WHK)

1975-12-01T23:59:59.000Z

376

Photovoltaics for municipal planners  

DOE Green Energy (OSTI)

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

Not Available

1993-04-01T23:59:59.000Z

377

Photovoltaics R and D: A tour through the 21st century  

DOE Green Energy (OSTI)

The future investments for photovoltaics research and development are contemplated for this new millennium. Current technologies are used as the foundation for what might be expected for the next 50 years. A tour is conducted through what coming generations can anticipate for this technology; emphasizing non-conventional applications beyond the expected. Next-generation research approaches are predicted indicating the horizon of PV technology. Conjectures of those PV and related technologies that are beyond this horizon are presented, with prognosis what the coming generations might have as their conventional energy sources.

Kazmerski, L. L.

2000-05-15T23:59:59.000Z

378

US photovoltaic patents: 1991--1993  

DOE Green Energy (OSTI)

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.

Pohle, L

1995-03-01T23:59:59.000Z

379

Tax barriers to solar central receiver generation technology  

DOE Green Energy (OSTI)

Tax loads and required revenues are estimated for current and future solar central receiver and gas-fired plants competing in the same market. An economic measure of tax equity is used to evaluate the equity of the tax loads under past and present tax codes. The same measure is used to devise a tax strategy which produces the following two types of equitable taxation: (1) the two plants carry nearly equal tax loads, and (2) local, state and federal governments receive the same distribution of revenues from the solar plant as from the gas-fired plant `Me results show that central receivers (and likely other capital-intensive technologies) carry higher tax loads compared to competing gasfired generation, that tax loads are highly correlated with competitiveness, and that equitable taxation is feasible within the boundaries of the study.

Jenkins, A.F. [California Energy Commission, Sacramento, CA (United States); Reilly, H.E. [Sandia National Labs., Albuquerque, NM (United States)

1994-12-31T23:59:59.000Z

380

Waste generation process modeling and analysis for fuel reprocessing technologies  

SciTech Connect

Estimates of electric power generation requirements for the next century, even when taking the most conservative tack, indicate that the United States will have to increase its production capacity significantly. If the country determines that nuclear power will not be a significant component of this production capacity, the nuclear industry will have to die, as maintaining a small nuclear component will not be justifiable. However, if nuclear power is to be a significant component, it will probably require some form of reprocessing technology. The once-through fuel cycle is only feasible for a relatively small number of nuclear power plants. If we are maintaining several hundred reactors, the once-through fuel cycle is more expensive and ethically questionable.

Kornreich, D. E. (Drew E.); Koehler, A. C. (Andrew C.); Farman, Richard F.

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Super Boiler 2nd Generation Technology for Watertube Boilers  

Science Conference Proceedings (OSTI)

This report describes Phase I of a proposed two phase project to develop and demonstrate an advanced industrial watertube boiler system with the capability of reaching 94% (HHV) fuel-to-steam efficiency and emissions below 2 ppmv NOx, 2 ppmv CO, and 1 ppmv VOC on natural gas fuel. The boiler design would have the capability to produce >1500 F, >1500 psig superheated steam, burn multiple fuels, and will be 50% smaller/lighter than currently available watertube boilers of similar capacity. This project is built upon the successful Super Boiler project at GTI. In that project that employed a unique two-staged intercooled combustion system and an innovative heat recovery system to reduce NOx to below 5 ppmv and demonstrated fuel-to-steam efficiency of 94% (HHV). This project was carried out under the leadership of GTI with project partners Cleaver-Brooks, Inc., Nebraska Boiler, a Division of Cleaver-Brooks, and Media and Process Technology Inc., and project advisors Georgia Institute of Technology, Alstom Power Inc., Pacific Northwest National Laboratory and Oak Ridge National Laboratory. Phase I of efforts focused on developing 2nd generation boiler concepts and performance modeling; incorporating multi-fuel (natural gas and oil) capabilities; assessing heat recovery, heat transfer and steam superheating approaches; and developing the overall conceptual engineering boiler design. Based on our analysis, the 2nd generation Industrial Watertube Boiler when developed and commercialized, could potentially save 265 trillion Btu and $1.6 billion in fuel costs across U.S. industry through increased efficiency. Its ultra-clean combustion could eliminate 57,000 tons of NOx, 460,000 tons of CO, and 8.8 million tons of CO2 annually from the atmosphere. Reduction in boiler size will bring cost-effective package boilers into a size range previously dominated by more expensive field-erected boilers, benefiting manufacturers and end users through lower capital costs.

Mr. David Cygan; Dr. Joseph Rabovitser

2012-03-31T23:59:59.000Z

382

NREL: Photovoltaics Research - Facilities  

NLE Websites -- All DOE Office Websites (Extended Search)

Facilities Facilities NREL's world-class research facilities provide the venue for innovative advances in photovoltaic technologies and applications. These facilities within the National Center for Photovoltaics (NCPV) serve both multi-use and dedicated-use functions. We encourage our research colleagues in industry, universities, and other laboratories to pursue opportunities in working with our staff in these facilities. Dedicated-Use Facilities Photo of a red-hot coil glowing inside a round machine. Research within these facilities focuses on targeted areas of interest that require specific tools, techniques, or unique capabilities. Our two main dedicated-use facilities are the following: Outdoor Test Facility (OTF) OTF researchers study and evaluate advanced or emerging PV technologies

383

Advanced NOx Emissions Control: Control Technology - Second Generation  

NLE Websites -- All DOE Office Websites (Extended Search)

In Situ Device for Real-Time Catalyst Deactivation Measurements in Full-Scale SCR Systems In Situ Device for Real-Time Catalyst Deactivation Measurements in Full-Scale SCR Systems To support trends in the electric generating industry of moving from seasonal to year-round operation of Selective Catalytic Reduction (SCR) for control of NOx and mercury, as well as extending the time between generating unit outages, Fossil Energy Research Corporation (FERCo) is developing technology to determine SCR catalyst activity and remaining life without requiring an outage to obtain and analyze catalyst samples. FERCo intends to use SCR catalyst performance results measured with their in situ device at Alabama PowerÂ’s Plant Gorgas during the 2005 and 2006 ozone seasons, along with EPRIÂ’s CatReactTM catalyst management software, to demonstrate the value of real-time activity measurements with respect to the optimization of catalyst replacement strategy. Southern Company and the Electric Power Research Institute are co-funding the project.

384

Photovoltaic mission analysis: some recent results  

SciTech Connect

Brief accounts of recent short investigations of three different aspects of the interface between photovoltaic solar energy conversion systems and the utility grid are presented. An account is given of some results of a recent investigation of the effect on photovoltaic system economics of the sale of excess photovoltaic electricity to the utility company. A recently developed economic dispatch model was used to study the changes that can be expected to take place in the dispatching of power from conventional plants in a utility system when a photovoltaic power plant is added to the generation mix. Also, a report is given on a set of structured interviews with high management personnel of eight different utility companies, located in various parts of the U.S. -- interviews in which utility attitudes toward photovoltaic power generation, in general, and toward utility-related photovoltaic experiments, in particular, were explored.

Bogen, A. H.; Leonard, S. L.; Siegel, B.

1977-10-18T23:59:59.000Z

385

Photovoltaic Manufacturing Technology, Phase 1, Final report. Final subcontract report, 9 January 1991--14 April 1991  

DOE Green Energy (OSTI)

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

Easoz, J.R.; Herlocher, R.H. [Westinghouse Electric Corp., Pittsburgh, PA (US)

1991-12-01T23:59:59.000Z

386

NREL: Photovoltaics Research - Thin Film Photovoltaic Partnership Project  

NLE Websites -- All DOE Office Websites (Extended Search)

Thin Film Photovoltaic Partnership Project Thin Film Photovoltaic Partnership Project NREL's Thin Film Photovoltaic (PV) Partnership Project led R&D on emerging thin-film solar technologies in the United States from 1994 to 2009. The project made many advances in thin-film PV technologies that allowed the United States to attain world leadership in this area of solar technology. Three national R&D teams focused on thin-film semiconductor materials: amorphous silicon (a-Si), cadmium telluride (CdTe), and copper indium gallium diselenide (CIGS) and its alloys. The Module Reliability Team and Environmental Health and Safety Team were crosscutting. The teams comprised researchers from the solar industry, academia, and NREL who focused their efforts on improving materials, devices, and manufacturing processes-all

387

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

DOE Green Energy (OSTI)

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

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

1993-04-01T23:59:59.000Z

388

Economic analysis of a candidate 50 cents/Wpk flat-plate photovoltaic manufacturing technology. Low-Cost Solar Array Project 5101-94  

SciTech Connect

The SAMICS methodology was used to analyze the first candidate manufacturing sequence that could meet the LSA Projects's 1986 price goal. That goal represents a reduction in photovoltaic prices by a factor of a hundred over a 10-year period, from approximately 50 $/Wpk in 1975 to 50 cents/Wpk in 1986. The results of analysis which has occurred since the original presentation of the 5 cents/Wpk candidate factory at the 10th LSA Project Integration Meeting are described. Briefly, if a number of events occur, such as a high cell efficiency (14% for this technology), vertical industry integration, long periods of amortizing the initial capital investment, and full utilization of a large plant, then a price of 39.9 cents/Wpk is possible. Non-optimal circumstances will increase this required price, and several of these circumstances are addressed.

Aster, R.W.

1978-12-01T23:59:59.000Z

389

SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative  

NLE Websites -- All DOE Office Websites (Extended Search)

SunShot Photovoltaic SunShot Photovoltaic Manufacturing Initiative to someone by E-mail Share SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative on Facebook Tweet about SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative on Twitter Bookmark SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative on Google Bookmark SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative on Delicious Rank SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative on Digg Find More places to share SunShot Initiative: SunShot Photovoltaic Manufacturing Initiative on AddThis.com... Concentrating Solar Power Photovoltaics Research & Development Competitive Awards Diversity in Science and Technology Advances National Clean Energy in Solar Grid Engineering for Accelerated Renewable Energy Deployment

390

SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home  

NLE Websites -- All DOE Office Websites (Extended Search)

Scaling Up Nascent Photovoltaics Scaling Up Nascent Photovoltaics AT Home to someone by E-mail Share SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home on Facebook Tweet about SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home on Twitter Bookmark SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home on Google Bookmark SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home on Delicious Rank SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home on Digg Find More places to share SunShot Initiative: Scaling Up Nascent Photovoltaics AT Home on AddThis.com... Concentrating Solar Power Photovoltaics Research & Development Competitive Awards Diversity in Science and Technology Advances National Clean Energy in Solar Grid Engineering for Accelerated Renewable Energy Deployment

391

EELE408 Photovoltaics Lecture 20: Photovoltaic Systems  

E-Print Network (OSTI)

into the grid 2 Application Areas 3 Photovoltaic System Basics · Photovoltaic Systems ­ Cell Panel Array1 EELE408 Photovoltaics Lecture 20: Photovoltaic Systems Dr. Todd J. Kaiser tjkaiser Panel 4 · DC · AC / = ACDC Charge Regulator Inverter Battery DC Load AC Load Modularity: Solar Cell

Kaiser, Todd J.

392

Adaptable Inverter for Injection of Fuel Cell and Photovoltaic Power  

E-Print Network (OSTI)

important to apply renewable energies and efficient technologies. For power injection of photovoltaic with different energy sources such as photovoltaic, fuel cell and battery. It is possible to adjust active inverter. These inverters for injection of photovoltaic energy are developed only for this purpose

Kulig, Stefan

393

Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode  

E-Print Network (OSTI)

Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode Jung-Yong Lee, Steve T demonstrate semitransparent small molecular weight organic photovoltaic cells using a laminated silver electrodes, nanowires O rganic photovoltaic cells are considered a promis- ing solar cell technology because

Cui, Yi

394

Stanford Green Dorm Project --Photovoltaic Mini-Report --  

E-Print Network (OSTI)

, and promotional purposes. Technology Overview Photovoltaic (PV) cells are semiconductor devices that convert light and the overall installation of modules is called an array. Diagram of photovoltaic cell. (httpStanford Green Dorm Project -- Photovoltaic Mini-Report -- Paul Kreiner ­ May 7, 2004 Purpose PVs

Krothapalli, Anjaneyulu

395

Technologies  

Technologies Energy. Advanced Carbon Aerogels for Energy Applications; Distributed Automated Demand Response; Electrostatic Generator/Motor; Modular Electromechanical ...

396

Technologies  

Technologies Energy, Utilities, & Power Systems. Advanced Carbon Aerogels for Energy Applications; Distributed Automated Demand Response; Electrostatic Generator/Motor

397

Partnerships and Technology Transfer  

... and photovoltaic materials. This technology is applicable to quantum dot solid-state lighting, flexible electronics, thin film batteries, and ...

398

Photovoltaic self-assembly.  

DOE Green Energy (OSTI)

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.

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

2010-10-01T23:59:59.000Z

399

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

DOE Green Energy (OSTI)

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.

Not Available

1992-03-01T23:59:59.000Z

400

MHK Technologies/Sea wave Slot cone Generator SSG | Open Energy Information  

Open Energy Info (EERE)

Sea wave Slot cone Generator SSG Sea wave Slot cone Generator SSG < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Sea wave Slot cone Generator SSG.jpg Technology Profile Primary Organization Wave Energy AS Project(s) where this technology is utilized *MHK Projects/Wave Energy AS Project 1 Technology Resource Click here Wave Technology Type Click here Overtopping Device Technology Readiness Level Click here TRL 5/6: System Integration and Technology Laboratory Demonstration Technology Description The Sea Wave Slot-Cone Generator (SSG) is based on the overtopping principle. It utilizes a total of three reservoirs stacked on top of one other (referred to as a 'multi-stage water turbine') in which the potential energy of the incoming wave will be stored. The water captured in the reservoirs will then run through the multi-stage turbine for highly efficient electricity production.

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

NREL: Learning - Photovoltaics for Small Business  

NLE Websites -- All DOE Office Websites (Extended Search)

Photovoltaics for Small Business Photovoltaics for Small Business Photo of a factory with a photovoltaic system. This furniture factory in Massachusetts uses a photovoltaic system to generate its own electricity. The following resources will help your small business install a photovoltaic (PV) system. If you are unfamiliar with PV systems, see the introduction to PV. Resources American Solar Energy Society Provides consumers with information about solar energy and resources. Database of State Incentives for Renewables and Efficiency Provides information on state, local, utility, and selected federal incentives that promote renewable energy. Florida Solar Energy Center The Florida Solar Energy Center provides basic information on photovoltaics for consumers. Own Your Power! A Consumer Guide to Solar Electricity

402

Solar Power Generation-A Sustainable Alternative Energy Technology  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2011. Symposium, Perspectives for Emerging Materials Professionals: Early Strategies for Career ...

403

Program on Technology Innovation: Next Generation Monitoring, Assessment, and Control  

Science Conference Proceedings (OSTI)

Power system operation technologies such as computerized one-line diagram visualization, state estimation, contingency analysis, and distance relay were developed upwards of 50 years ago, However, technological advances in communication, computing, and algorithms have made it possible to reexamine methods for performing real-time monitoring, assessment, and control. This report describes the vision, infrastructure, and technology roadmap for future smart control centers.

2009-01-22T23:59:59.000Z

404

List of Photovoltaics Incentives | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Incentives Photovoltaics Incentives Jump to: navigation, search The following contains the list of 2359 Photovoltaics Incentives. CSV (rows 1-500) CSV (rows 501-1000) CSV (rows 1001-1500) CSV (rows 1501-2000) CSV (rows 2001-2359) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active 30% Business Tax Credit for Solar (Vermont) Corporate Tax Credit Vermont Commercial Industrial Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat No AEP Ohio - Renewable Energy Credit (REC) Purchase Program (Ohio) Performance-Based Incentive Ohio Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit Residential Schools State Government Photovoltaics Wind energy Yes AEP Ohio - Renewable Energy Technology Program (Ohio) Utility Rebate Program Ohio Agricultural

405

High-Efficiency Photovoltaics at Thin Film Costs  

Time (Years) 0-+ 5. 10. 15. 20. 25. Opportunity. Technology. ... • 15 years renewable energy business development ... High-Efficiency Photovoltaics at ...

406

Nanocone-Based Photovoltaic Solar Cells - Oak Ridge National ...  

Nanocone-Based Photovoltaic Solar Cells Note: The technology described above is an early stage opportunity. Licensing rights to this intellectual property may

407

Method of Rapidly Screening Buffer Layers in Photovoltaics  

ORNL 2010-G0647/jcn UT-B ID 200902275 Method of Rapidly Screening Buffer Layers in Photovoltaics Technology Summary This ORNL invention offers a new method to ...

408

Rational Device Design for Highly Efficient Organic Photovoltaic Solar Cells.  

E-Print Network (OSTI)

??Abundant, scalable, environmentally-friendly organic photovoltaic (OPV) technology is increasingly promising in recent years. The power conversion efficiency (PCE) of OPVs has been raised to around… (more)

Yang, Bin

2013-01-01T23:59:59.000Z

409

Next Generation Surfactants for Improved Chemical Flooding Technology  

Science Conference Proceedings (OSTI)

The principle objective of this project was to characterize and test current and next generation high performance surfactants for improved chemical flooding technology, focused on reservoirs in the Pennsylvanian-aged (Penn) sands. In order to meet this objective the characteristic curvatures (Cc) of twenty-eight anionic surfactants selected for evaluation for use in chemical flooding formulations were determined. The Cc values ranged from -6.90 to 2.55 with the majority having negative values. Crude oil samples from nine Penn sand reservoirs were analyzed for several properties pertinent to surfactant formulation for EOR application. These properties included equivalent alkane carbon numbers, total acid numbers, and viscosity. The brine samples from these same reservoirs were analyzed for several cations and for total dissolved solids. Surfactant formulations were successfully developed for eight reservoirs by the end of the project period. These formulations were comprised of a tertiary mixture of anionic surfactants. The identities of these surfactants are considered proprietary, but suffice to say the surfactants in each mixture were comprised of varying chemical structures. In addition to the successful development of surfactant formulations for EOR, there were also two successful single-well field tests conducted. There are many aspects that must be considered in the development and implementation of effective surfactant formulations. Taking into account these other aspects, there were four additional studies conducted during this project. These studies focused on the effect of the stability of surfactant formulations in the presence of polymers with an associated examination of polymer rheology, the effect of the presence of iron complexes in the brine on surfactant stability, the potential use of sacrificial agents in order to minimize the loss of surfactant to adsorption, and the effect of electrolytes on surfactant adsorption. In these last four studies the effects of such things as temperature, electrolyte concentration and the effect of different types of electrolytes were taken into consideration.

Laura Wesson; Prapas Lohateeraparp; Jeffrey Harwell; Bor-Jier Shiau

2012-05-31T23:59:59.000Z

410

NREL: Photovoltaics Research - Events  

NLE Websites -- All DOE Office Websites (Extended Search)

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

411

ORGANIC PHOTOVOLTAIC DEVICE OPTIMIZATION .  

E-Print Network (OSTI)

??Polymer based organic photovoltaic (OPV) is making great progress on solar cell performance in the past decade. As a potential alternative to conventional expensive photovoltaic… (more)

Nie, Wanyi

2012-01-01T23:59:59.000Z

412

A novel fault diagnosis method based-on modified neural networks for photovoltaic systems  

Science Conference Proceedings (OSTI)

The main purpose of this paper is to propose an intelligent fault diagnostic method for photovoltaic (PV) systems. First, Solar Pro software package was used to simulate a photovoltaic system for gathering power generation data of photovoltaic modules ... Keywords: extension theory, fault diagnosis, matter-element model, neural networks, photovoltaic (PV) system

Kuei-Hsiang Chao; Chao-Ting Chen; Meng-Hui Wang; Chun-Fu Wu

2010-06-01T23:59:59.000Z

413

Assessment and Evaluation of Next Generation HVDC Technologies  

Science Conference Proceedings (OSTI)

As an established technology for bulk power transmission, high-voltage direct current (HVDC) power transmission is being used worldwide, and more than 100 schemes are operating at present. Most existing HVDC systems use conventional self-commutated converter technology using thyristors. However, advances in voltage sourced converter (VSC) technologies and power electronic devices such as gate turn offs (GTOs), insulated gate bipolar transistors (IGBTs), and integrated gate commutated thyristors (IGCTs) w...

2008-12-22T23:59:59.000Z

414

Photovoltaics -- Energy for the new millennium  

DOE Green Energy (OSTI)

This Photovoltaic Program Five-Year Plan is being published today, January 1, 2000. This five-year plan provides a strategy for research and development to advance the technology.

Cook, G.; Gwinner, D.

1999-11-30T23:59:59.000Z

415

Photovoltaics Using Doped and Undoped Amorphous Silicon ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Polymer based photovoltaic (PV) technology is an exciting ... this area are few and there is a need for in-depth analysis of Si-organic interfaces.

416

Fuel Cell Comparison of Distributed Power Generation Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

technologies. The higher-efficiency fuel cells, such as the solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC), exhibited lower energy requirements than...

417

Distributed Generation: Which technologies? How fast will they...  

NLE Websites -- All DOE Office Websites (Extended Search)

Osborn Utility deregulation, environmental issues, increases in electricity demand, natural gaselectricity rate changes, new technologies, and several other key drivers are...

418

Building Technologies Office: Next Generation Rooftop Unit Research...  

NLE Websites -- All DOE Office Websites (Extended Search)

Buildings News Building Technologies Office Announces 3 Million to Advance Building Automation Software Solutions in Small to Medium-Sized Commercial Buildings March 29,...

419

Amorphous silicon photovoltaic manufacturing technology - Phase 2A. Annual subcontract report, May 1, 1993--April 30, 1994  

DOE Green Energy (OSTI)

Utility Power Group (UPG), and its lower-tier subcontractor, Advanced Photovoltaic Systems, Inc. (APS) have conducted efforts in developing their manufacturing lines. UPG has focused on the automation of encapsulation and termination processes developed in Phase I. APS has focused on completion of the encapsulation and module design tasks, while continuing the process and quality control and automation projects. The goal is to produce 55 watt (stabilized) EP50 modules in a new facility. In the APS Trenton EUREKA manufacturing facility, APS has: (1) Developed high throughput lamination procedures; (2) Optimized existing module designs; (3) Developed new module designs for architectural applications; (4) Developed enhanced deposition parameter control; (5) Designed equipment required to manufacture new EUREKA modules developed during Phase II; (6) Improved uniformity of thin-film materials deposition; and (7) Improved the stabilized power output of the APS EP50 EUREKA module to 55 watts. In the APS Fairfield EUREKA manufacturing facility, APS has: (1) Introduced the new products developed under Phase I into the APS Fairfield EUREKA module production line; (2) Increased the extent of automation in the production line; (3) Introduced Statistical Process Control to the module production line; and (4) Transferred-progress made in the APS Trenton facility into the APS Fairfield facility.

Duran, G.; Mackamul, K.; Metcalf, D. [Utility Power Group, Chatsworth, CA (United States)

1995-01-01T23:59:59.000Z

420

Cadmium telluride photovoltaic radiation detector  

DOE Patents (OSTI)

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

Agouridis, Dimitrios C. (Oak Ridge, TN); Fox, Richard J. (Oak Ridge, TN)

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Monitoring and control requirement definition study for dispersed storage and generation (DSG). Volume II. Final report, Appendix A: selected DSG technologies and their general control requirements  

SciTech Connect

A major aim of the US National Energy Policy, as well as that of the New York State Energy Research and Development Authority, is to conserve energy and to shift from oil to more abundant domestic fuels and renewable energy sources. Dispersed Storage and Generation (DSG) is the term that characterizes the present and future dispersed, relatively small (<30 MW) energy systems, such as solar thermal electric, photovoltaic, wind, fuel cell, storage battery, hydro, and cogeneration, which can help achieve these national energy goals and can be dispersed throughout the distribution portion of an electric utility system. The purpose of this survey and identification of DSG technologies is to present an understanding of the special characteristics of each of these technologies in sufficient detail so that the physical principles of their operation and the internal control of each technology are evident. In this way, a better appreciation can be obtained of the monitoring and control requirements for these DSGs from a remote distribution dispatch center. A consistent approach is being sought for both hardware and software which will handle the monitoring and control necessary to integrate a number of different DSG technologies into a common distribution dispatch network. From this study it appears that the control of each of the DSG technologies is compatible with a supervisory control method of operation that lends itself to remote control from a distribution dispatch center.

1980-10-01T23:59:59.000Z

422

Fueling the Next Generation of Vehicle Technology | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

National Fuel Cell Research Center, points out the tri-generation facility that uses biogas from Orange County Sanitation Districts wastewater treatment plant to produce...

423

Market Power and Technological Bias: The Case of Electricity Generation  

E-Print Network (OSTI)

collective output isQg, and intermittent generators (which we will assume here is wind generation) whose output is assumed to have a fixed and stochastic component Qw,0+ ?w. We assume that E[?w] = 0 and V ar[?w] = ?2w. The intermittent output is produced by a... conventional generation assets. In equilibrium demand matches supply: DT = Qg +Qw,0 + ?w, (2) and using (1) gives: p = D0 ? b(Qg +Qw,0 + ?w). (3) We assume that a conventional generator has a quadratic cost function: Cg(Qg) = ?Qg + ? 2Q 2 g, (4) and thus...

Twomey, Paul; Neuhoff, Karsten

2006-03-14T23:59:59.000Z

424

The New Generation of Vertical Shaft Calciner Technology  

Science Conference Proceedings (OSTI)

... shaft calciner, the waste heat from which can be recuperated to generate electricity of 28 million kWh. The major invention is calciner structure optimization by ...

425

Utility/Industry Partnerships Involving Distributed Generation Technologies in Evolving Electricity Markets  

E-Print Network (OSTI)

Electricity markets in the United States are undergoing unprecedented structural changes as a result of the confluence of regulatory, competitive, and technological forces. This paper will introduce the role of distributed generation technologies in evolving electric markets and will review both current and emerging distributed generation technologies aimed at retail industrial, commercial and residential markets. This paper will draw upon several Electric Power Research Institute’s (EPRI) and member utility case studies involving the assessment of distributed generation in premium power service, standby power and industrial cogeneration applications. In addition, EPRI products and services which can help evaluate energy service options involving distributed generation will also be briefly reviewed.

Rastler, D. M.

1997-04-01T23:59:59.000Z

426

Multidimensional Assessment of Emerging Technologies: Case of Next Generation Internet and Online Gaming Application  

Science Conference Proceedings (OSTI)

The Internet has changed the world in many ways. Online communications, financial and business-to-business transactions, electronic shopping, banking, and entertainment have become the norm in the digital age. The combined package of technologies that ... Keywords: Evaluating Technologies, Multidimensional Assessment, Next Generation Internet, Online Gaming, Technology Assessment

Ramin Neshati; Tugrul U. Daim

2010-04-01T23:59:59.000Z

427

Continuous roll-to-roll a-Si photovoltaic manufacturing technology. Annual subcontractor report, 1 April 1992--31 March 1993  

DOE Green Energy (OSTI)

This report describes work done under a 3-year program to advance ECD`s roll-to-roll, triple-junction photovoltaic manufacturing technologies, to reduce the module production costs, to increase the stabilized module performance, and to expand commercial capacity utilizing ECD technology. The specific 3-year goal is to develop advanced large-scale manufacturing technology incorporating ECD`s earlier research advances with the capability of producing modules with stable 11% efficiency at a cost of approximately $1.00 per peak watt. Accomplishments during Phase 1 included: (1) ECD successfully incorporated a high-performance Ag/metal-oxide back-reflector system into its continuous roll-to-roll commercial production operation. (2) High-quality a-Si-Ge narrow-band-gap solar cells were incorporated into the manufacturing. (3) ECD demonstrated the continuous roll-to-roll production of high-efficiency, triple-junction, two-band-gap solar cells consistently and uniformly throughout a 762-m (2500-ft) run with high yield. (4) ECD achieved 11.1% initial sub-cell efficiency of triple-junction, two-band-gap a-Si alloy solar cells in the production line. (5) The world`s first 0.37-m{sup 2} (4-ft{sup 2}) PV modules were produced utilizing triple-junction spectrum-splitting solar cells manufactured in the production line. (6) As a result of process optimization to reduce the layer thickness and to improve the gas utilization, ECD achieved a 77% material cost reduction for germane and 58% reduction for disilane. Additionally, ECD developed a new low-cost module that saves approximately 30% in assembly material costs.

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

1993-12-01T23:59:59.000Z

428

Photovoltaic Modules: Effect of Tilt Angle on Soiling.  

E-Print Network (OSTI)

??Photovoltaic (PV) systems are one of the next generation's renewable energy sources for our world energy demand. PV modules are highly reliable. However, in polluted… (more)

Cano, Jose

2011-01-01T23:59:59.000Z

429

Towards In Situ Hard X-ray Microscopy of Photovoltaic  

Science Conference Proceedings (OSTI)

Photovoltaic systems for energy generation are at the core of efforts to ... solar cells and models that represent the evolution of impurities during cell processing.

430

Energy Basics: Flat-Plate Photovoltaic Balance of System  

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

Balance of System Complete photovoltaic (PV) energy systems are composed of three subsystems. On the power-generation side, the first subsystem of PV devices (cells, modules, and...

431

Cast polycrystalline silicon photovoltaic module manufacturing technology improvements. Semiannual technical report, 1 January 1996--30 June 1996  

DOE Green Energy (OSTI)

Two specific objectives of Solarex`s program are to reduce the manufacturing cost for polycrystalline silicon photovoltaic modules to less than $1.20/watt and to increase the manufacturing capacity by a factor of three. This report highlights accomplishments during the period of January 1 through June 30, 1996. Accomplishments include: began the conversion of production casting stations to increase ingot size; operated the wire saw in a production mode with higher yields and lower costs than achieved on the ID saws; developed and qualified a new wire guide coating material that doubles the wire guide lifetime and produces significantly less scatter in wafer thickness; completed a third pilot run of the cost-effective Al paste back-surface-field (BSF) process, verifying a 5% increase in cell efficiency and demonstrating the ability to process and handle the BSF paste cells; completed environmental qualification of modules using cells produced by an all-print metallization process; optimized the design of the 15.2-cm by 15.2-cm polycrystalline silicon solar cells; demonstrated the application of a high-efficiency process in making 15.2-cm by 15.2-cm solar cells; demonstrated that cell efficiency increases with decreasing wafer thickness for the Al paste BSF cells; qualified a vendor-supplied Tedlar/ethylene vinyl acetate (EVA) laminate to replace the combination of separate sheets of EVA and Tedlar backsheet; demonstrated the operation of a prototype unit to trim/lead attach/test modules; and demonstrated the operation of a wafer pull-down system for cassetting wet wafers.

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

1997-01-01T23:59:59.000Z

432

Fueling the Next Generation of Vehicle Technology | Department...  

NLE Websites -- All DOE Office Websites (Extended Search)

and technologies like the tri-gen facility are going to play a vital role in our nation's future energy and transportation economies. And because FCEVs can boast rapid fueling,...

433

Technology Assessment of Residential Power Systems for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

Significant research and development (R&D) investments in fuel cell technology have led to functioning prototypes of residential fuel power systems operating on natural gas. Efforts by at least four leading companies are expected to lead to early field trials of residential power systems in 2000 and early 2001, followed by pre-commercial prototypes during 2001-2002, and commercial introduction in the 2002-2005 time frame. Other technology companies are expected to follow suit.

2000-12-12T23:59:59.000Z

434

Photovoltaics: New opportunities for utilities  

SciTech Connect

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.

Not Available

1991-07-01T23:59:59.000Z

435

Solar Photovoltaics for Sustainable Agriculture and  

E-Print Network (OSTI)

Solar photovoltaic (PV) systems have shown their potential in rural electrification projects around the world, especially concerning Solar Home Systems. With continuing price decreases of PV systems, other applications are becoming economically attractive and growing experience is gained with the use of PV in such areas as social and communal services, agriculture and other productive activities, which can have a significant impact on rural development. There is still a lack of information, however, on the potential and limitations of such PV applications. The main aim of this study is, therefore, to contribute to a better understanding of the potential impact and of the limitations of PV systems on sustainable agriculture and rural development (SARD), especially concerning income-generating activities. It is, in fact, of paramount importance to identify the potential contribution of PV to rural development in order to gain further financial and political commitment for PV projects and programmes and to design appropriate PV projects. One of the main lessons learnt through this study is that success of PV programmes is significantly enhanced when an integrated strategy is followed. Solar photovoltaic systems, through their flexibility in use, offer unique chances for the energy sector to provide “packages ” of energy services to remote rural areas such as for rural health care, education, communication, agriculture, lighting and water supply. It is hoped that this document contributes to the generation of ideas and discussions among the different institutions involved in providing these services to rural areas and thereby to an "informed " decision on the PV technology option.

B. Van Campen; D. Guidi; G. Best

2000-01-01T23:59:59.000Z

436

Photovoltaic system reliability  

SciTech Connect

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

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

1997-10-01T23:59:59.000Z

437

Technical Assessment Guide (TAG) - Power Generation and Storage Technology Options: 2013 Topics (DRAFT)  

Science Conference Proceedings (OSTI)

The EPRI Technical Assessment Guide™ (TAG®)—Power Generation and Storage Technology Options report provides cost and performance data and analysis for energy company decision makers to optimize capital investments in the power generation and energy storage infrastructure. The topics chosen by the TAG® members in 2013 reflect the transition of the industry in the last few years from a heavily coal and nuclear technologies-based generation to natural ...

2013-12-12T23:59:59.000Z

438

Matching Photovoltaic Orientation to Energy Loads  

Science Conference Proceedings (OSTI)

Rather than orienting rooftop installation of photovoltaics (PV) to maximize power for the individual customer-generator, we analyze design and performance of integrated PV for two alternate objectives: 1.) maximizing the volume of grid sellbacks, and ...

Seth Blumsack; Jeffrey Brownson; Jeff Rayl

2010-01-01T23:59:59.000Z

439

SunShot Initiative: Photovoltaics  

NLE Websites -- All DOE Office Websites (Extended Search)

Initiative: Photovoltaics on Twitter Bookmark SunShot Initiative: Photovoltaics on Google Bookmark SunShot Initiative: Photovoltaics on Delicious Rank SunShot Initiative:...

440

NREL: Photovoltaics Research Home Page  

NLE Websites -- All DOE Office Websites (Extended Search)

Photo of Photovoltaic Solar Panels. Photo of Photovoltaic Solar Panels. Solar Installer Surveys DOE needs your input to reduce the "soft costs" of solar PV installations that impact your business. Complete the residential survey and commercial survey today! Photovoltaic (PV) research at the National Renewable Energy Laboratory (NREL) focuses on boosting solar cell conversion efficiencies, lowering the cost of solar cells, modules, and systems, and improving the reliability of PV components and systems. NREL's PV effort contributes to these goals through fundamental research, advanced materials and devices, and technology development. Our scientists are pursuing critical activities that will help to accomplish the goal of the U.S. Department of Energy's SunShot Initiative-to make large-scale solar energy systems cost-competitive with

Note: This page contains sample records for the topic "generation technologies photovoltaics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

CATEGORICAL EXCLUSION FOR INSTALLING A PHOTOVOLTAIC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

-PNSO-0657 -PNSO-0657 CATEGORICAL EXCLUSION FOR INSTALLING A PHOTOVOLTAIC POWER GENERATION ARRAY AND ELECTRIC CAR CHARGING STATIONS, ENVIRONMENTAL MOLECULAR SCIENCES LABORATORY, PACIFIC NORTHWEST SITE OFFICE, RICHLAND, WASHINGTON Proposed Action The U.S. Department of Energy (DOE), Pacific Northwest Site Office (PNSO) proposes to install a photovoltaic power generation array and electric car charging stations. Location of Action The proposed action would occur in a landscaped infiltration swale located immediately

442

Comments on US LMFBR steam generator base technology  

SciTech Connect

The development of steam generators for the LMFBR was recognized from the onset by the AEC, now DOE, as a difficult, challenging, and high-priority task. The highly reactive nature of sodium with water/steam requires that the sodium-water/steam boundaries of LMFBR steam generators possess a degree of leak-tightness reliability not normally attempted on a commercial scale. In addition, the LMFBR steam generator is subjected to high fluid temperatures and severe thermal transients. These requirements place great demand on materials, fabrication processes, and inspection methods; and even greater demands on the designer to provide steam generators that can meet these demanding requirements, be fabricated without unreasonable shop requirements, and tolerate off-normal effects.

Simmons, W.R.

1984-01-01T23:59:59.000Z

443

Program on Technology Innovation: Alternative Approaches to Generation Adequacy Assurance  

Science Conference Proceedings (OSTI)

Reliability of electricity supply"keeping the lights on"has been the principal motivation for many technical and economic constraints imposed on market designs. While short-term operational reliability is provided by means of protection devices, operating standards, and procedures that include security-constrained dispatch and procurement of ancillary services, long-term generation adequacy requires investment in upgrading and expansion of generation capacity. In restructured electricity markets, such ex...

2007-12-12T23:59:59.000Z

444

Measuring Solar Spectral and Angle-ofIncidence Effects on Photovoltaic Modules and Solar Irradiance Sensors  

E-Print Network (OSTI)

Historically, two time-of-day dependent factors have complicated the characterization of photovoltaic module and array performance; namely, changes in the solar spectrum over the day and optical effects in the module that vary with the solar angle-of-incidence. This paper describes straightforward methods for directly measuring the effects of these two factors. Measured results for commercial modules, as well as for typical solar irradiance sensors (pyranometers) are provided. The empirical relationships obtained from the measurements can be used to improve the methods used for system design, verification of performance after installation, and diagnostic monitoring of performance during operation. INTRODUCTION It is common knowledge to people familiar with photovoltaic technology that the electrical current generated by photovoltaic devices is influenced by the spectral distribution (spectrum) of sunlight. It is also commonly understood that the spectral distribution of sunlight vari...

David L. King; Jay A. Kratochvil; William E. Boyson

1997-01-01T23:59:59.000Z

445

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

E-Print Network (OSTI)

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

Steim, Roland

2010-01-01T23:59:59.000Z

446

Photovoltaic Potential and Insolation Maps (Canada) | Open Energy  

Open Energy Info (EERE)

Photovoltaic Potential and Insolation Maps (Canada) Photovoltaic Potential and Insolation Maps (Canada) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Potential and Insolation Maps (Canada) Focus Area: Renewable Energy Topics: Potentials & Scenarios Website: glfc.cfsnet.nfis.org/mapserver/pv/pvmapper.phtml?LAYERS=2700,2701,2057 Equivalent URI: cleanenergysolutions.org/content/photovoltaic-potential-and-insolation Language: English Policies: Regulations Regulations: Net Metering & Interconnection These interactive maps give estimates of the electricity that can be generated by grid-connected photovoltaic (PV) arrays without batteries and of the mean daily global insolation for any location in Canada. Insolation data was provided by the Data Analysis and Archive Division, Meteorological

447

A Manifesto for Agent Technology: Towards Next Generation Computing  

Science Conference Proceedings (OSTI)

The European Commission's eEurope initiative aims to bring every citizen, home, school, business and administration online to create a digitally literate Europe. The value lies not in the objective itself, but in its ability to facilitate the advance ... Keywords: agent technology, challenges, roadmap, survey, trends

Michael Luck; Peter McBurney; Chris Preist

2004-11-01T23:59:59.000Z

448

PFBC and IGCC power generation technologies: status and opportunities  

SciTech Connect

View graphs are presented for pressurized fluidized bed combustion and combined-cycle power plants/coal gasification technologies. Photographs, graphs and flowsheets are included covering the following topics: product line; product goals; product development strategy; this year`s success; barrier issues; key plans for next year; technical status; and market opportunities.

Brdar, R.D.; Reuther, R.B.

1996-12-31T23:59:59.000Z

449

Innovation and production in the global solar photovoltaic industry  

Science Conference Proceedings (OSTI)

The global development of solar photovoltaic power is seen as a potentially major technology in the pursuit of alternative energy sources. Given its evolutionary nature, in terms of both technology and the market, there is some discernible divergence ... Keywords: Innovation, Patent, Production, Solar photovoltaic (PV) market

Show-Ling Jang; Li-Ju Chen; Jennifer H. Chen; Yu-Chieh Chiu

2013-03-01T23:59:59.000Z

450

25 Year Lifetime for Flexible Buildings Integrated Photovoltaics  

SciTech Connect

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

Gross, Mark E.

2010-07-10T23:59:59.000Z

451

Next generation sequencing (NGS)technologies and applications  

Science Conference Proceedings (OSTI)

NGS technology overview: (1) NGS library preparation - Nucleic acids extraction, Sample quality control, RNA conversion to cDNA, Addition of sequencing adapters, Quality control of library; (2) Sequencing - Clonal amplification of library fragments, (except PacBio), Sequencing by synthesis, Data output (reads and quality); and (3) Data analysis - Read mapping, Genome assembly, Gene expression, Operon structure, sRNA discovery, and Epigenetic analyses.

Vuyisich, Momchilo [Los Alamos National Laboratory

2012-09-11T23:59:59.000Z

452

Advances in steam turbine technology for power generation  

SciTech Connect

This book contains articles presented at the 1990 International Joint Power Generation Conference. It is organized under the following headings: Solid particle erosion in steam turbines, Steam turbine failure analysis, Steam turbine upgrades, steam turbine blading development, Boiler feed pumps and auxiliary steam turbine drives.

Bellanca, C.P. (Dayton Power and Light Company (US))

1990-01-01T23:59:59.000Z

453

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

SciTech Connect

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

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

1999-02-01T23:59:59.000Z

454

Approaches to Future Generation Photovoltaics and Solar Fuels: Multiple Exciton Generation in Quantum Dots, Quantum Dot Arrays, Molecular Singlet Fission, and Quantum Dot Solar Cells  

DOE Green Energy (OSTI)

One potential, long-term approach to more efficient future generation solar cells is to utilize the unique properties of quantum dots (QDs) and unique molecular chromophores to control the relaxation pathways of excited states to produce enhanced conversion efficiency through efficient multiple electron-hole pair generation from single photons . We have observed efficient multiple exciton generation (MEG) in PbSe, PbS, PbTe, and Si QDs and efficient singlet fission (SF) in molecules that satisfy specific requirements for their excited state energy level structure to achieve carrier multiplication. We have studied MEG in close-packed QD arrays where the QDs are electronically coupled in the films and thus exhibit good transport while still maintaining quantization and MEG. We have developed simple, all-inorganic QD solar cells that produce large short-circuit photocurrents and power conversion efficiencies in the 3-5% range via both nanocrystalline Schottky junctions and nanocrystalline p-n junctions. These solar cells also show QYs for photocurrent that exceed 100% in the photon energy regions where MEG is possible; the photocurrent MEG QYs as a function of photon energy match those determined via time-resolved spectroscopy. We have also observed very efficient SF in thin films of molecular crystals of 1,3 diphenylisobenzofuran with quantum yields of 200% at the optimum SF threshold of 2Eg (HOMO-LUMO for S{sub 0}-S{sub 1}), reflecting the creation of two excited triplet states from the first excited singlet state. Various possible configurations for novel solar cells based on MEG in QDs and SF in molecules that could produce high conversion efficiencies will be presented, along with progress in developing such new types of solar cells. Recent analyses of the effect of MEG or SF combined with solar concentration on the conversion efficiency of solar cells will be discussed.

Nozik, A. J.; Beard, M. C.; Johnson, J. C.; Hanna, M. C.; Luther, J. M.; Midgett, A.; Semonin, O.; Michel, J.

2012-01-01T23:59:59.000Z

455

New connections for new technologies  

SciTech Connect

New energy technologies are fast converging on utility electricity networks, but these networks are designed for alternating current (ac) power from large central power plants. Research is needed in direct current (dc)-to-ac power conditioning, appropriate generation planning, revised operation and control strategies, and institutional issues before technologies, such as fuel cells, storage batteries, photovoltaic arrays, and wind turbines can produce electricity for customers. 6 figures.

Lihach, N.; Ferraro, R.

1982-01-01T23:59:59.000Z

456

Cast polycrystalline silicon photovoltaic cell and module manufacturing technology improvements. Annual subcontract report, 1 December 1993--30 November 1994  

DOE Green Energy (OSTI)

This report describes work performed under a 3-y contract to advance Solarex`s cast polycrystalline silicon manufacturing technology, reduce module production cost, increase module performance, and expand Solarex`s commercial production capacities. Specific objectives are to reduce manufacturing cost for polycrstalline silicon PV modules to less than $1.20/W and to increase manufacturing capacity by a factor of 3. Solarex is working on casting, wire saws, cell process, module assembly, frameless module development, and automated cell handling.

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

1995-09-01T23:59:59.000Z

457

Cast polycrystalline silicon photovoltaic module manufacturing technology improvements. Annual subcontract report, January 1, 1995--December 31, 1995  

DOE Green Energy (OSTI)

The objective of this three-year program is to advance Solarex`s cast polycrystalline silicon manufacturing technology, reduce module production cost, increase module performance and expand Solarex`s commercial production capacities. Two specific objectives of this program are to reduce the manufacturing cost for polycrystalline silicon PV modules to less than $1.20/watt and to increase the manufacturing capacity by a factor of three.

Wohlgemuth, J. [Amoco/Enron Solar, Frederick, MD (United States)

1996-06-01T23:59:59.000Z

458

Photovoltaic Subcontract Program, FY 1990  

SciTech Connect

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.

Summers, K.A. (ed.)

1991-03-01T23:59:59.000Z

459

Photovoltaic Subcontract Program, FY 1990  

DOE Green Energy (OSTI)

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.

Summers, K.A. (ed.)

1991-03-01T23:59:59.000Z

460

Major Environmental Aspects of Gasification-Based Power Generation Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Detailed Evaluation of the Environmental Performance of Gasification-Based Power Systems Detailed Evaluation of the Environmental Performance of Gasification-Based Power Systems DECEMBER 2002 U.S. DOE/NETL 2-1 2. DETAILED EVALUATION OF THE ENVIRONMENTAL PERFORMANCE OF GASIFICATION-BASED POWER SYTEMS 2.1 Introduction and Summary of Information Presented The single most compelling reason for utilities to consider coal gasification for electric power generation is superior environmental performance. 1 As shown in Figure 2-1, gasification has fundamental environmental advantages over direct coal combustion. Commercial-scale plants for both integrated gasification combined cycle (IGCC) electric power generation and chemicals applications have already successfully demonstrated these advantages. The superior environmental capabilities of coal gasification apply to all three areas of concern: air emissions,

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461

Assessment of turbine generator technology for district heating applications  

SciTech Connect

Steam turbines for cogeneration plants may carry a combination of industrial, space heating, cooling and domestic hot water loads. These loads are hourly, weekly, and seasonally irregular and require turbines of special design to meet the load duration curve, while generating electric power. Design features and performance characteristics of large cogeneration turbine units for combined electric generation and district heat supply are presented. Different modes of operation of the cogeneration turbine under variable load conditions are discussed in conjunction with a heat load duration curve for urban heat supply. The performance of the 250 MW district heating turbine as applied to meet the heat load duration curve for Minneapolis--St. Paul area is analyzed, and associated fuel savings are estimated.

Oliker, I.

1978-09-01T23:59:59.000Z

462

Major Environmental Aspects of Gasification-Based Power Generation Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Detailed Detailed Evaluation of the Environmental Performance of Gasification-Based Power Systems DECEMBER 2002 U.S. DOE/NETL 2-1 2. DETAILED EVALUATION OF THE ENVIRONMENTAL PERFORMANCE OF GASIFICATION-BASED POWER SYTEMS 2.1 Introduction and Summary of Information Presented The single most compelling reason for utilities to consider coal gasification for electric power generation is superior environmental performance. 1 As shown in Figure 2-1, gasification has fundamental environmental advantages over direct coal combustion. Commercial-scale plants for both integrated gasification combined cycle (IGCC) electric power generation and chemicals applications have already successfully demonstrated these advantages. The superior environmental capabilities of coal gasification apply to all three areas of concern: air emissions, water discharges, and solid

463

LBNL's Low-NOx Combustion Technologies for Heat and Power Generation  

NLE Websites -- All DOE Office Websites (Extended Search)

Us Department Contacts Media Contacts LBNL's Low-NOx Combustion Technologies for Heat and Power Generation Speaker(s): Robert Cheng Date: February 2, 1999 - 12:00pm Location: Bldg....

464

Systematic Review and Harmonization of Life Cycle GHG Emission Estimates for Electricity Generation Technologies (Presentation)  

SciTech Connect

This powerpoint presentation to be presented at the World Renewable Energy Forum on May 14, 2012, in Denver, CO, discusses systematic review and harmonization of life cycle GHG emission estimates for electricity generation technologies.

Heath, G.

2012-06-01T23:59:59.000Z

465

Next Generation Nuclear Plant Project Technology Development Roadmaps: The Technical Path Forward  

SciTech Connect

This document presents the Next Generation Nuclear Plant (NGNP) Systems, Subsystems, and Components, establishes a baseline for the current technology readiness status, and provides a path forward to achieve increasing levels of technical maturity.

John Collins

2009-01-01T23:59:59.000Z

466

Examination of incentive mechanisms for innovative technologies applicable to utility and nonutility power generators  

SciTech Connect

Innovative technologies, built by either utility or nonutility power generators, have the potential to lower costs with less environmental emissions than conventional technologies. However, the public-good nature of information, along with uncertain costs, performance, and reliability, discourages rapid adoption of these technologies. The effect of regulation of electricity production may also have an adverse impact on motivation to innovate. Slower penetration of cleaner, more efficient technologies could result in greater levels of pollution, higher electricity prices, and a reduction in international competitiveness. Regulatory incentives could encourage adoption and deployment of innovative technologies of all kinds, inducting clean coal technologies. Such incentives must be designed to offset risks inherent in innovative technology and encourage cost-effective behavior. To evaluate innovative and conventional technologies equally, the incremental cost of risk (ICR) of adopting the innovative technology must be determined. Through the ICR, the magnitude of incentive required to make a utility (or nonutility) power generator equally motivated to use either conventional or innovative technologies can be derived. Two technology risks are examined: A construction risk, represented by a 15% cost overrun, and an operating risk, represented by a increased forced outage rate (decreased capacity factor). Different incentive mechanisms and measurement criteria are used to assess the effects of these risks on ratepayers and shareholders. In most cases, a regulatory incentive could offset the perceived risks while encouraging cost-effective behavior by both utility and nonutility power generators. Not only would the required incentive be recouped, but the revenue requirements would be less for the innovative technology; also, less environmental pollution would be generated. In the long term, ratepayers and society would benefit from innovative technologies.

McDermott, K.A. [Illinois Commerce Commission, Springfield, IL (United States); Bailey, K.A.; South, D.W. [Argonne National Lab., IL (United States). Environmental Assessment and Information Sciences Div.

1993-08-01T23:59:59.000Z

467

Low cost high performance generator technology program. Addendum report  

DOE Green Energy (OSTI)

The results of a system weight, efficiency, and size analysis which was performed on the 500 W(e) low cost high performance generator (LCHPG) are presented. The analysis was perform