National Library of Energy BETA

Sample records for gateway solar designs

  1. Photovoltaic Performance and Reliability Database: A Gateway to Experimental Data Monitoring Projects for PV at the Florida Solar Energy Center

    DOE Data Explorer

    This site is the gateway to experimental data monitoring projects for photovoltaic (PV) at the Florida Solar Energy Center. The website and the database were designed to facilitate and standardize the processes for archiving, analyzing and accessing data collected from dozens of operational PV systems and test facilities monitored by FSEC's Photovoltaics and Distributed Generation Division. [copied from http://www.fsec.ucf.edu/en/research/photovoltaics/data_monitoring/index.htm

  2. Solar Design Workbook

    SciTech Connect

    Franta, G.; Baylin, F.; Crowther, R.; Dubin, F.; Grace, A., Griffith, J.W.; Holtz, M.; Kutscher, C.; Nordham, D.; Selkowitz, S.; Villecco, M.

    1981-06-01

    This Solar Design Workbook presents solar building design applications for commercial buildir^s. The book is divided into four sections. The first section describes the variety of solar applications in buildings including conservation aspects, solar fundamentals, passive systems, active systems, daylighting, and other solar options. Solar system design evaluation techniques including considerations for building energy requirements, passive systems, active systems, and economics are presented in Section II. The third section attempts to assist the designer in the building design process for energy conservation and solar applications including options and considerations for pre-design, design, and post-design phases. The information required for the solar design proee^ has not been fully developed at this time. Therefore, Section III is incomplete, but an overview of the considerations with some of the design proces elements is presented. Section IV illustrates ease studies that utilize solar applications in the building design.

  3. Science Gateways

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

    Gateways Science Gateways About Science Gateways A science gateway is a web-based interface to access HPC computers and storage systems. Gateways allow science teams to access data, perform shared computations, and generally interact with NERSC resources over the web. Common gateway goals are to improve ease of use in HPC so that more scientists can benefit from NERSC resources to create collaborative workspaces around data and computing for science teams that use NERSC to make your data

  4. Passive Solar Building Design and Solar Thermal Space Heating...

    Energy Saver

    Passive Solar Building Design and Solar Thermal Space Heating Webinar Passive Solar Building Design and Solar Thermal Space Heating Webinar Watch a recording of National Renewable ...

  5. Advanced solar panel designs

    SciTech Connect

    Ralph, E.L.; Linder, E.

    1995-10-01

    This paper describes solar cell panel designs that utilize new high efficiency solar cells along with lightweight rigid panel technology. The resulting designs push the W/kg and W/sq m parameters to new high levels. These new designs are well suited to meet the demand for higher performance small satellites. This paper reports on progress made on two SBIR Phase 1 contracts. One panel design involved the use of large area (5.5 cm x 6.5 cm) GaAs/Ge solar cells of 19% efficiency combined with a lightweight rigid graphite fiber epoxy isogrid substrate configuration. A coupon (38 cm x 38 cm) was fabricated and tested which demonstrated an array specific power level of 60 W/kg with a potential of reaching 80 W/kg. The second panel design involved the use of newly developed high efficiency (22%) dual junction GaInP2/GaAs/Ge solar cells combined with an advanced lightweight rigid substrate using aluminum honeycomb core with high strength graphite fiber mesh facesheets. A coupon (38 cm x 38 cm) was fabricated and tested which demonstrated an array specific power of 105 W/kg and 230 W/sq m. This paper will address the construction details of the panels and an analysis of the component weights. A strawman array design suitable for a typical small-sat mission is described for each of the two panel design technologies being studied. Benefits in respect to weight reduction, area reduction, and system cost reduction are analyzed and compared to conventional arrays.

  6. Design of an Open Smart Energy Gateway for Smart Meter Data Management

    SciTech Connect

    Page, Janie; McParland, Chuck; Piette, Mary Ann; Czarnecki, Stephen

    2015-03-01

    With the widespread deployment of electronic interval meters, commonly known as smart meters, came the promise of real-time data on electric energy consumption. Recognizing an opportunity to provide consumers access to their near real-time energy consumption data directly from their installed smart meter, we designed a mechanism for capturing those data for consumer use via an open smart energy gateway (OpenSEG). By design, OpenSEG provides a clearly defined boundary for equipment and data ownership. OpenSEG is an open-source data management platform to enable better data management of smart meter data. Effectively, it is an information architecture designed to work with the ZigBee Smart Energy Profile 1.x (SEP 1.x). It was specifically designed to reduce cyber-security risks and provide secure information directly from smart meters to consumers in near real time, using display devices already owned by the consumers. OpenSEG stores 48 hours of recent consumption data in a circular cache using a format consistent with commonly available archived (not real-time) consumption data such as Green Button, which is based on the Energy Services Provider Interface (ESPI) data standard. It consists of a common XML format for energy usage information and a data exchange protocol to facilitate automated data transfer upon utility customer authorization. Included in the design is an application program interface by which users can acquire data from OpenSEG for further post processing. A sample data display application is included in the initial software product. The data display application demonstrates that OpenSEG can help electricity use data to be retrieved from a smart meter and ported to a wide variety of user-owned devices such as cell phones or a user-selected database. This system can be used for homes, multi-family buildings, or small commercial buildings in California.

  7. Bay Solar Power Design | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar Power Design Jump to: navigation, search Name: Bay Solar Power Design Place: California Product: US-based PV system installer. References: Bay Solar Power Design1 This...

  8. GATEWAY ENTERPRISES

    Office of Legacy Management (LM)

    C GATEWAY ENTERPRISES October 30, 2007 Stephen F. Tarlton, P.E., Unit Leader Hazardous Materials & Waste Management Dept. of Public Health & Environment 4300 Cherry Creek Drive South Radioactive Materials Management Unit Denver, CO 80246-1530 RE: DOE Computer Model, Rulison Dear Mr. Tarlton: This letter provides our general thoughts about the recently-reported DOE mathematical simulation of the Rulison site (1). We were retained to review the DOE report by the Danielson Law Firm, and our

  9. Solar Site Design | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Site Design Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Solar Site Design AgencyCompany Organization: Loyal Enterprises LLC Sector: Energy Focus Area: Solar...

  10. Passive Solar Home Design | Department of Energy

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

    Design for Efficiency » Passive Solar Home Design Passive Solar Home Design This North Carolina home gets most of its space heating from the passive solar design, but the solar thermal system (top of roof) supplies both domestic hot water and a secondary radiant floor heating system. | Photo courtesy of Jim Schmid Photography. This North Carolina home gets most of its space heating from the passive solar design, but the solar thermal system (top of roof) supplies both domestic hot water and a

  11. Passive solar design handbook. Volume III. Passive solar design analysis

    SciTech Connect

    Jones, R.W.; Balcomb, J.D.; Kosiewicz, C.E.; Lazarus, G.S.; McFarland, R.D.; Wray, W.O.

    1982-07-01

    Simple analytical methods concerning the design of passive solar heating systems are presented with an emphasis on the average annual heating energy consumption. Key terminology and methods are reviewed. The solar load ratio (SLR) is defined, and its relationship to analysis methods is reviewed. The annual calculation, or Load Collector Ratio (LCR) method, is outlined. Sensitivity data are discussed. Information is presented on balancing conservation and passive solar strategies in building design. Detailed analysis data are presented for direct gain and sunspace systems, and details of the systems are described. Key design parameters are discussed in terms of their impact on annual heating performance of the building. These are the sensitivity data. The SLR correlations for the respective system types are described. The monthly calculation, or SLR method, based on the SLR correlations, is reviewed. Performance data are given for 9 direct gain systems and 15 water wall and 42 Trombe wall systems. (LEW)

  12. GATEWAY Demonstrations | Department of Energy

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

    GATEWAY Demonstrations GATEWAY Demonstrations DOE GATEWAY demonstrations enable detailed LED product evaluation and hands-on experience that cannot be replicated in a lab. ...

  13. A Science Data Gateway for Environmental Management

    SciTech Connect

    Agarwal, Deborah, A; Faybishenko, Boris; Freedman, Vicky, L; Krishnan, Harinarayan; Kushner, Gary; Lansing, Carina; Porter, Ellen; Romosan, Alexandru; Shoshani, Arie; Wainwright, Haruko; Weidmer, Arthur; Wu, Kesheng

    2015-10-12

    Science data gateways are effective in providing complex science data collections to the world-wide user communities. In this paper we describe a gateway for the Advanced Simulation Capability for Environmental Management (ASCEM) framework. Built on top of established web service technologies, the ASCEM data gateway is specifically designed for environmental modeling applications. Its key distinguishing features include: (1) handling of complex spatiotemporal data, (2) offering a variety of selective data access mechanisms, (3) providing state of the art plotting and visualization of spatiotemporal data records, and (4) integrating seamlessly with a distributed workflow system using a RESTful interface. ASCEM project scientists have been using this data gateway since 2011.

  14. Good, Better, Best: Designing a Designation Program for Solar...

    Energy Saver

    Good, Better, Best: Designing a Designation Program for Solar Good, Better, Best: Designing a Designation Program for Solar December 4, 2012 - 4:00pm Addthis The Energy Department ...

  15. Automated solar collector installation design

    DOEpatents

    Wayne, Gary; Frumkin, Alexander; Zaydman, Michael; Lehman, Scott; Brenner, Jules

    2014-08-26

    Embodiments may include systems and methods to create and edit a representation of a worksite, to create various data objects, to classify such objects as various types of pre-defined "features" with attendant properties and layout constraints. As part of or in addition to classification, an embodiment may include systems and methods to create, associate, and edit intrinsic and extrinsic properties to these objects. A design engine may apply of design rules to the features described above to generate one or more solar collectors installation design alternatives, including generation of on-screen and/or paper representations of the physical layout or arrangement of the one or more design alternatives.

  16. Category:Gateways | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Low Emissions Assistance Network (CLEAN) E Gateway:ECOWAS Clean Energy Gateway G Gateway:Geothermal H Gateway:Hydrogen I Gateway:Incentives and Policies Gateway:International...

  17. Passive Solar Home Design | Department of Energy

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

    well-designed passive solar home first reduces heating and cooling loads through energy-efficiency strategies and then meets those reduced loads in whole or part with solar energy. ...

  18. Solar Design Associates Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Associates Inc Jump to: navigation, search Name: Solar Design Associates Inc Address: P.O. Box 242 Place: Harvard, Massachusetts Zip: 01451 Region: Greater Boston Area Sector:...

  19. Solar Decathlon 2015: Nation's Leading Sustainable Home Design...

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

    Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon Solar ... Richard King Richard King Director, Solar Decathlon KEY FACTS 2015 Solar Decathlon to kick ...

  20. Gateway for Accelerated Innovation in Nuclear | Department of Energy

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

    Gateway for Accelerated Innovation in Nuclear Gateway for Accelerated Innovation in Nuclear In November 2015, DOE announced it is establishing the Gateway for Accelerated Innovation in Nuclear (GAIN) to provide the nuclear energy community with access to the technical, regulatory, and financial support necessary to move new or advanced nuclear reactor designs toward commercialization while ensuring the continued safe, reliable, and economic operation of the existing nuclear fleet. GAIN will

  1. Solar Power | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Get Involved Help Apps Datasets Community Login | Sign Up Search Gateway Edit History Solar Power (Redirected from Solar energy) Jump to: navigation, search Solar Energy...

  2. Solar Power | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Get Involved Help Apps Datasets Community Login | Sign Up Search Gateway Edit History Solar Power (Redirected from Solar) Jump to: navigation, search Solar Energy Companies...

  3. Geothermal/Solar Hybrid Designs: Use of Geothermal Energy for...

    Office of Scientific and Technical Information (OSTI)

    GeothermalSolar Hybrid Designs: Use of Geothermal Energy for CSP Feedwater Heating Citation Details In-Document Search Title: GeothermalSolar Hybrid Designs: Use of Geothermal ...

  4. Solar Decathlon Design Models 2009 | Department of Energy

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

    Solar Decathlon Design Models 2009 Solar Decathlon Design Models 2009 Addthis Florida International 1 of 20 Florida International Image: Energy Department Image Team New Jersey 2...

  5. Holes Are a Positive Thing: Designing Conductors for Solar Photovoltai...

    Office of Science (SC)

    Holes Are a Positive Thing: Designing Conductors for Solar Photovoltaics Basic Energy ... Holes Are a Positive Thing: Designing Conductors for Solar Photovoltaics Predicted by ...

  6. Solar Decathlon 2015: Nation's Leading Sustainable Home Design...

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

    Solar Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon Solar Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon...

  7. Guide to Passive Solar Home Design

    SciTech Connect

    2010-10-01

    Passive solar design incorporates features in your home and its natural surroundings that harness the sun's low rays in winter and deflect the sun's high rays in the summer.

  8. Passive Solar Home Design | Department of Energy

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

    Passive solar design takes advantage of a building's site, climate, and materials to ... south-facing windows and retains it in materials that store heat, known as thermal mass. ...

  9. Utilizing Nature's Designs for Solar Energy Conversion

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

    Nature's Designs for Solar Energy Conversion Create new materials that: capture, convert, store sunlight Learn from Nature... ...build with chemistry ANL Photosynthesis Group Fundamental Studies  Solar energy conversion in natural and artificial photosynthesis Resolve mechanisms, design principles  Unique capabilities Time-resolved, multi-frequency EPR Time-resolved synchrotron X-ray Ultrafast spectroscopy Multi-molecular: Artificial systems for H 2 photocatalysis  Limitations: 

  10. Passive solar design handbook. Volume two of two volumes: passive solar design analysis

    SciTech Connect

    Balcomb, J.D.; Barley, D.; McFarland, R.; Perry, J. Jr.; Wray, W.; Noll, S.

    1980-01-01

    A manual for the design and performance evaluation and analysis of passive solar heating systems is presented. Two passive solar building types are analyzed: direct gain and thermal storage walls. Rules of thumb for the schematic design phase and simplified procedures for the design development phase are described. Analysis methods for the construction documents phase are given. The design procedure for fan-forced rock beds for hybrid systems is presented. Economic analysis methods for passive solar buildings are described. Tables of monthly average solar radiation, temperature, and degree-days for various locations in the US and southern Canada are included. (WHK)

  11. Solar Panel Design Ideas for Your Home | Department of Energy

    Office of Environmental Management (EM)

    Solar Panel Design Ideas for Your Home Solar Panel Design Ideas for Your Home June 8, 2016 - 5:08pm Addthis These examples of building integrated photovoltaic panels are like solar ...

  12. Design tools for passive solar applications

    SciTech Connect

    Balcomb, J.D.

    1986-04-01

    Examples of passive solar design tools are given, categorized as either evaluation tools or guidance tools. A trend toward microcomputer-based tools is noted; however, these are usually developed for use by engineers rather than architects. The need for more instructive tools targeted specifically to designers is emphasized.

  13. gateway | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    by Graham7781(2017) Super contributor 28 March, 2013 - 15:16 OpenEI launches new Water Power Gateway and Community Forum community forum gateway OpenEI Water power OpenEI...

  14. Building Design Guidelines for Solar Energy Technologies

    DOE R&D Accomplishments

    Givoni, B.

    1989-01-01

    There are two main objectives to this publication. The first is to find out the communalities in the experience gained in previous studies and in actual applications of solar technologies in buildings, residential as well as nonresidential. The second objective is to review innovative concepts and products which may have an impact on future developments and applications of solar technologies in buildings. The available information and common lessons were collated and presented in a form which, hopefully, is useful for architects and solar engineers, as well as for teachers of "solar architecture" and students in Architectural Schools. The publication is based mainly on the collection and analysis of relevant information. The information included previous studies in which the performance of solar buildings was evaluated, as well as the personal experience of the Author and the research consultants. The state of the art, as indicated by these studies and personal experience, was summarized and has served as basis for the development of the Design Guidelines. In addition to the summary of the state of the art, as was already applied in solar buildings, an account was given of innovative concepts and products. Such innovations have occurred in the areas of thermal storage by Phase Change Materials (PCM) and in glazing with specialized or changeable properties. Interesting concepts were also developed for light transfer, which may enable to transfer sunlight to the core areas of large multi story nonresidential buildings. These innovations may have a significant impact on future developments of solar technologies and their applications in buildings.

  15. Solar Power | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Get Involved Help Apps Datasets Community Login | Sign Up Search Gateway Edit History Solar Power Jump to: navigation, search Solar Energy Companies Loading map......

  16. Passive Solar Building Design Basics | Department of Energy

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

    Homes & Buildings » Passive Solar Building Design Basics Passive Solar Building Design Basics July 30, 2013 - 3:20pm Addthis The difference between a passive solar home and a conventional home is design. Passive solar homes and other buildings are designed to take advantage of the local climate. Passive solar design-also known as climatic design-involves using a building's windows, walls, and floors to collect, store, and distribute solar energy in the form of heat in the winter and reject

  17. Building design guidelines for solar energy technologies

    SciTech Connect

    Givoni, B.

    1989-01-01

    There are two main objectives to this publication. The first is to find out the communalities in the experience gained in previous studies and in actual applications of solar technologies in buildings, residential as well as nonresidential. The second objective is to review innovative concepts and products which may have an impact on future developments and applications of solar technologies in buildings. The available information and common lessons were collated and presented in a form which, hopefully, is useful for architects and solar engineers, as well as for teachers of solar architecture'' and students in Architectural Schools. The publication is based mainly on the collection and analysis of relevant information. The information included previous studies in which the performance of solar buildings was evaluated, as well as the personal experience of the Author and the research consultants. The state of the art, as indicated by these studies and personal experience, was summarized and has served as basis for the development of the Design Guidelines. In addition to the summary of the state of the art, as was already applied in solar buildings, an account was given of innovative concepts and products. Such innovations have occurred in the areas of thermal storage by Phase Change Materials (PCM) and in glazing with specialized or changeable properties. Interesting concepts were also developed for light transfer, which may enable to transfer sunlight to the core areas of large multi story nonresidential buildings. These innovations may have a significant impact on future developments of solar technologies and their applications in buildings. 15 refs., 19 figs., 3 tabs.

  18. Solar Decathlon Design Places People and the Outdoors at its...

    Office of Environmental Management (EM)

    Design Places People and the Outdoors at its Heart Solar Decathlon Design Places People ... How can I participate? The next Solar Decathlon will be held Sept. 23-Oct. 2, 2011, at the ...

  19. Science Gateway: The Materials Project

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

    solar cells, electric vehicles, hydrogen storage, catalyst design, and fuel cells. ... with improved characteristics will be required to, for example, power a car for 300 miles. ...

  20. A handbook for solar central receiver design

    SciTech Connect

    Falcone, P.K.

    1986-12-01

    This Handbook describes central receiver technology for solar thermal power plants. It contains a description and assessment of the major components in a central receiver system configured for utility scale production of electricity using Rankine-cycle steam turbines. It also describes procedures to size and optimize a plant and discussed examples from recent system analyses. Information concerning site selection criteria, cost estimation, construction, and operation and maintenance is also included, which should enable readers to perform design analyses for specific applications.

  1. GATEWAY Demonstrations | Department of Energy

    Energy.gov [DOE] (indexed site)

    DOE GATEWAY demonstrations enable detailed LED product evaluation and hands-on experience that cannot be replicated in a lab. High-performance LED products are selected and ...

  2. Passive solar design handbooks: Vol III: passive solar design analysis and supplement

    SciTech Connect

    Balcomb, J.D.; Jones, R.W.; Kosciewicz, C.E.; Lazarus, G.S.; McFarland, R.D.; Wray, W.O.

    1983-01-01

    This book applies the Los Alamos Solar Load Ratio (SLR) method to the design of passive solar heating systems, with an emphasis on the average annual heating energy consumption. Recommendations are given on minimizing heating energy consumption by appropriate choices of conservation level and solar system parameters. Analytical methods and supporting tables are presented which enable simple, fast estimates of the heating energy consumption as part of the design process. Topics considered include SLR correlations, the load collector ratio (LCR) method, sensitivity data, cooling considerations, conservation formulas, design procedure, life-cycle costs, high-mass direct gain buildings, low-mass sun-tempered buildings, sunspaces, off-reference night insulation, correlation equations, and mixed systems.

  3. DOE Publishes GATEWAY Report on OLED Lighting in an Office Setting |

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

    Department of Energy GATEWAY Report on OLED Lighting in an Office Setting DOE Publishes GATEWAY Report on OLED Lighting in an Office Setting April 26, 2016 - 11:50am Addthis The U.S. Department of Energy has released a report on the first GATEWAY demonstration involving OLED lighting. Aurora Lighting Design, Inc., in Grayslake, IL, installed Acuity Brands' Trilia(tm) OLED lighting system in September 2014. The new report recounts the experiences of this pioneering project and provides

  4. Energy Signatures: A passive solar design tool

    SciTech Connect

    Balcomb, J.D.; Lekov, A.B.

    1987-12-01

    Energy signatures is a new technique for aiding a designer in selecting and sizing passive solar elements in a building. Hourly heat flux profiles for each candidate design element are determined. These profiles are then matched to the hourly energy requirement of the space accounting for weather conditions, internal heat profiles of the space, and the mass characteristics of the building. Simulation analysis techniques are used to determine the energy signatures and the building load profile, and to check the final result. Least-squares techniques are used to determine the optimum mix of strategies. Examples are given to illustrate development of the method up to the present time. In addition, future directions and possibilities are outlined. 5 refs., 28 figs., 3 tabs.

  5. The Smithsonian American Art Museum GATEWAY Demonstration | Department...

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

    Videos The Smithsonian American Art Museum GATEWAY Demonstration The Smithsonian American Art Museum GATEWAY Demonstration View the video about using LEDs in a GATEWAY ...

  6. An Instrument Design Concept for Measuring Solar Diffuse Irradiance

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

    An Instrument Design Concept for Measuring Solar Diffuse Irradiance Rutledge, Charles NASA Langley Research Center Schuster, Greg NASA Langley Research Center Category: Instruments ...

  7. Solar design T-square | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Type: Training materials, Video Website: www.youtube.comusergaiatechnician Cost: Free References: Solar design Jig1 About A series of videos describing how to create a...

  8. Utilizing Nature's Designs for Solar Energy Conversion | Department of

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

    Energy Utilizing Nature's Designs for Solar Energy Conversion Utilizing Nature's Designs for Solar Energy Conversion Presentation by Lisa Utschig, Argonne National Laboratory, at the Biological Hydrogen Production Workshop held September 24-25, 2013, at the National Renewable Energy Laboratory in Golden, Colorado. bio_h2_workshop_utschig.pdf (1.24 MB) More Documents & Publications 2013 Biological Hydrogen Production Workshop Summary Report Basic Research Needs for Solar Energy

  9. Designing and Building Houses that are Solar Ready

    Office of Energy Efficiency and Renewable Energy (EERE)

    Builders considering adding photovoltaic (PV) systems to new houses after initial construction is completed can save time and money by following new house Solar Ready design guidelines. Solar Ready houses are designed and built with integrated electrical and mechanical features that streamline the integration of PV systems.

  10. Gateway Energy (formerly Econnergy) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ineLabel":"","visitedicon":"" Hide Map References: Gateway Energy (formerly Econnergy) Web Site1 This article is a stub. You can help OpenEI by expanding it. Gateway Energy...

  11. Feasibility Study & Design of Brightfield Solar Farm

    SciTech Connect

    Law, Susan

    2014-09-28

    This Congressionally Directed Project originally provided funds to the Township of Lower Providence, Pennsylvania for the purpose of investigating the potential for a renewable energy generation facility to make beneficial reuse of a closed landfill located within the Township, known as Moyer Landfill. Early in the course of the project, it was determined through collaboration and discussion with DOE to alter the scope of the project to include a feasibility assessment of a landfill solar project, as well as to construct a demonstration solar project at the municipal facilities to provide an educational and community outreach opportunity for the Township to offer regarding solar photovoltaic (“PV”) electricity generation.

  12. Solar Design Standards for State Buildings

    Energy.gov [DOE]

    From 2010 to 2012, solar photovoltaic systems have been installed at seven state government facilities, providing an estimated 650 kW of power. In one building, a 50 kW system has reduced energy ...

  13. Increasing Community Access to Solar: Designing and Developing a Shared Solar Photovoltaic System (Fact Sheet)

    SciTech Connect

    Not Available

    2012-06-01

    This document introduces the Energy Department's new Guide to Community Shared Solar: Utility, Private, and Nonprofit Project Development. The guide is designed to help those who want to develop community shared solar projects - from community organizers and advocates to utility managers and government officials - navigate the process of developing shared systems, from early planning to implementation.

  14. Gas Turbine/Solar Parabolic Trough Hybrid Designs: Preprint

    SciTech Connect

    Turchi, C. S.; Ma, Z.; Erbes, M.

    2011-03-01

    A strength of parabolic trough concentrating solar power (CSP) plants is the ability to provide reliable power by incorporating either thermal energy storage or backup heat from fossil fuels. Yet these benefits have not been fully realized because thermal energy storage remains expensive at trough operating temperatures and gas usage in CSP plants is less efficient than in dedicated combined cycle plants. For example, while a modern combined cycle plant can achieve an overall efficiency in excess of 55%; auxiliary heaters in a parabolic trough plant convert gas to electricity at below 40%. Thus, one can argue the more effective use of natural gas is in a combined cycle plant, not as backup to a CSP plant. Integrated solar combined cycle (ISCC) systems avoid this pitfall by injecting solar steam into the fossil power cycle; however, these designs are limited to about 10% total solar enhancement. Without reliable, cost-effective energy storage or backup power, renewable sources will struggle to achieve a high penetration in the electric grid. This paper describes a novel gas turbine / parabolic trough hybrid design that combines solar contribution of 57% and higher with gas heat rates that rival that for combined cycle natural gas plants. The design integrates proven solar and fossil technologies, thereby offering high reliability and low financial risk while promoting deployment of solar thermal power.

  15. Implications of solar energy alternatives for community design

    SciTech Connect

    Santos, A.; Steinitz, C.

    1980-06-01

    A graduate-level studio at the Harvard School of Design explored how a policy of solar-based energy independence will influence the design of a new community of approximately 4500 housing units and other uses. Three large sites outside Tucson (a cooling problem), Atlanta (a humidity problem), and Boston (a heating problem) were selected. Each is typical of its region. A single program was assumed and designed for. Each site had two teams, one following a compact approach and one following a more dispersed approach. Each was free to choose the most appropriate mix of (solar) technology and scale, and was free to integrate energy and community in the design as it saw fit. These choice and integration issues are key areas where our experience may be of interest to those involved in community design and solar energy.

  16. Simple procedure for schematic design of passive solar buildings

    SciTech Connect

    Wray, W.O.; Kosiewicz, C.E.

    1984-01-01

    A simple procedure for use during the schematic phase of passive solar building design is presented in this article. The procedure is quantitative and accurate enough to insure that designs based on the provided starting point values of the primary building parameters will be cost effective.

  17. Best Practices in the Design of Utility Solar Programs

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

    Best Practices in the Design of Utility Solar Programs Webinar audio call in number: Toll: +1 (314) 627-1519 Access Code: 519-655-755 September 27, 2012 2 Webinar Presenters * Welcome/Background o Lori Bird, Andy Reger, NREL * James Loewen, CPUC CSI * Eran Mahrer, Solar Electric Power Association * Karl Rábago, Rábago Energy (formerly Austin Energy) * Dana Levy, Frank Mace, NYSERDA 3 What Defines Success? * Market stimulation through cost reduction * Increase long-term viability of solar o

  18. Solar Energy-- Photovoltaic Design Assistance Center

    SciTech Connect

    1995-12-31

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

  19. Solar optical materials for innovative window design

    SciTech Connect

    Lampert, C.M.

    1982-08-01

    New and innovative optical materials and coatings can greatly improve the efficiency of window energy systems. These potential materials and coatings increase energy efficiency by reducing radiative losses in the infrared, or reducing visible reflection losses or controlling overheating due to solar gain. Current progress in heat mirror coatings for glass and polymeric substrates is presented. Highly doped semiconducting oxides and metal/dielectric interference coatings are reviewed. Physical and optical properties are outlined for antireflection films and transparent aerogel insulation media. The potential for optical switching films as window elements includes discussions of electrochromic, photochromic and other physical switching processes.

  20. Solar Power Tower Design Basis Document, Revision 0

    SciTech Connect

    ZAVOICO,ALEXIS B.

    2001-07-01

    This report contains the design basis for a generic molten-salt solar power tower. A solar power tower uses a field of tracking mirrors (heliostats) that redirect sunlight on to a centrally located receiver mounted on top a tower, which absorbs the concentrated sunlight. Molten nitrate salt, pumped from a tank at ground level, absorbs the sunlight, heating it up to 565 C. The heated salt flows back to ground level into another tank where it is stored, then pumped through a steam generator to produce steam and make electricity. This report establishes a set of criteria upon which the next generation of solar power towers will be designed. The report contains detailed criteria for each of the major systems: Collector System, Receiver System, Thermal Storage System, Steam Generator System, Master Control System, and Electric Heat Tracing System. The Electric Power Generation System and Balance of Plant discussions are limited to interface requirements. This design basis builds on the extensive experience gained from the Solar Two project and includes potential design innovations that will improve reliability and lower technical risk. This design basis document is a living document and contains several areas that require trade-studies and design analysis to fully complete the design basis. Project- and site-specific conditions and requirements will also resolve open To Be Determined issues.

  1. Design and Spacecraft-Integration of RTGs for Solar Probe

    SciTech Connect

    Schock, Alfred

    1990-10-01

    Presented at the 41st Congress of the IAF, October 6-12, 1990 in Dresden, FRG. The paper describes the design and analysis of Radioisotope Thermoelectric Generators integrated with JPL's planned Solar Probe spacecraft. The principle purpose of the Solar probe mission is to explore the solar corona by performing in-situ measurements at distances as close as four solar radii or 0.02 AU from the sun. This proximity to the sun imposes some unusual design constraints on the RTG and on its integration with the spacecraft. The results demonstrated that the obstructions result in significant performance penalties for the case of the standard GPHS-RTG design. Finally, the paper describes a simple empirical method for predicting the combined effect of fuel decay and thermoelectric degradation on the RTG's power output, and applies that method to predict the long-term power profile of the obstructed Solar Probe RTGs. The results indicate that the existing GPHS-RTG design, even without modifications can meet the JPL-prescribed EOM power requirement. There is also three copies in the file of an earlier version of this dated 8/3/1990 with the report number of FSC-ESD-217-90-470. The most current one is the IAF version (IAD-90-208) dated October 6-12, 1990.

  2. Solar Photovoltaic System Design Basics | Department of Energy

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

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

  3. GATEWAY Demonstration Indoor Projects | Department of Energy

    Energy Saver

    LED Wall Washer Retrofit: College Park, Maryland At the University of Maryland, the GATEWAY program looked at LED wall washer options for a demonstration at the Clarice Smith ...

  4. ScienceGatewaysNUG-20091007.ppt

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

    2009 2 Science Gateways at NERSC * Web access methods to NERSC resources - Much is possible beyond yesterday's "ssh+pbs" computing - Today web interfaces expected for everything - ...

  5. City of San Jose - Solar Access Design Guidelines | Department...

    Energy.gov [DOE] (indexed site)

    Solar - Passive Solar Water Heat Solar Space Heat Solar Photovoltaics Program Info Sector Name Local Website http:www.sanjoseca.govindex.aspx?NID1725 State California Program...

  6. ECOWAS Clean Energy Gateway-Help | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ECOWAS Clean Energy Gateway-Help Jump to: navigation, search Economic Community of West African States (ECOWAS) Clean Energy Gateway Home | About | News | Links | Help | Countries...

  7. ECOWAS Clean Energy Gateway-Links | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ECOWAS Clean Energy Gateway-Links Jump to: navigation, search Economic Community of West African States (ECOWAS) Clean Energy Gateway Home | About | News | Links | Help | Countries...

  8. ECOWAS Clean Energy Gateway-About | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ECOWAS Clean Energy Gateway-About Jump to: navigation, search Economic Community of West African States (ECOWAS) Clean Energy Gateway Home | About | News | Links | Help | Countries...

  9. Gateway:Low Emission Development Strategies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gateway Edit History Gateway:Low Emission Development Strategies (Redirected from LEDS) Jump to: navigation, search Leds-Graphics 03.PNG Low Emission Development Strategies...

  10. Gateway:Low Emission Development Strategies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Edit History Gateway:Low Emission Development Strategies Jump to: navigation, search Leds-Graphics 03.PNG Low Emission Development Strategies (LEDS) Gateway Hello why do you...

  11. V-153: Symantec Brightmail Gateway Input Validation Flaw Permits...

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

    3: Symantec Brightmail Gateway Input Validation Flaw Permits Cross-Site Scripting Attacks V-153: Symantec Brightmail Gateway Input Validation Flaw Permits Cross-Site Scripting...

  12. Global Science Gateway Agreement Signed in London | Department...

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

    Global Science Gateway Agreement Signed in London Global Science Gateway Agreement Signed in London January 22, 2006 - 10:15am Addthis DOE Partners With British Library on...

  13. Wind Energy Data and Information Gateway (WENDI) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Information Gateway (WENDI) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Wind Energy Data and Information Gateway (WENDI) AgencyCompany Organization: United...

  14. Northeast Gateway Natural Gas LNG Imports (Price) From Qatar...

    Energy Information Administration (EIA) (indexed site)

    Northeast Gateway Natural Gas LNG Imports (Price) From Qatar (Dollars per Thousand Cubic Feet) Northeast Gateway Natural Gas LNG Imports (Price) From Qatar (Dollars per Thousand ...

  15. Price of Northeast Gateway Natural Gas LNG Imports from Egypt...

    Annual Energy Outlook

    Northeast Gateway Natural Gas LNG Imports from Egypt (Nominal Dollars per Thousand Cubic Feet) Price of Northeast Gateway Natural Gas LNG Imports from Egypt (Nominal Dollars per ...

  16. T-701: Citrix Access Gateway Enterprise Edition Input Validation...

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

    1: Citrix Access Gateway Enterprise Edition Input Validation Flaw in Logon Portal Permits Cross-Site Scripting Attacks T-701: Citrix Access Gateway Enterprise Edition Input...

  17. T-663: Cisco Content Services Gateway ICMP Processing Flaw Lets...

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

    3: Cisco Content Services Gateway ICMP Processing Flaw Lets Remote Users Deny Service T-663: Cisco Content Services Gateway ICMP Processing Flaw Lets Remote Users Deny Service July...

  18. DESIGN AND TEST OF NON-EVACUATED SOLAR

    Office of Scientific and Technical Information (OSTI)

    DESIGN AND TEST OF NON-EVACUATED SOLAR c COLLECTORS W I T H C O M P O U N D PARABOLIC ... a g e n e r a l l y a c c e p t e d test procedure, w e have t a k e n c a r e t o ...

  19. NREL: News - Solar Decathlon Design Presentation and Simulation Results

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

    Announced Design Presentation and Simulation Results Announced Monday, September 30, 2002 Second Round Goes to Virginia Tech Washington, D.C.-Virginia Polytechnic Institute and State University took first place in the Design Presentation and Simulation Contest at the Solar Village on the National Mall in Washington, D.C. today. Carnegie Mellon University placed second and the University of Maryland placed third. With today's contest results, and results from ongoing contests, the overall

  20. NREL: News - Solar Decathlon Engineering Design Results Announced

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

    Engineering Design Results Announced Thursday, October 3, 2002 Distinguished Panel Picks University of Colorado and Crowder College The University of Colorado at Boulder and Crowder College tied for first place in the Engineering Design results announced today at the Department of Energy's (DOE) Solar Decathlon competition on the National Mall in Washington, DC, today. Virginia Polytechnic Institute and State University took the second highest number of points and the University of Maryland

  1. Solar Decathlon 2015: Nation's Leading Sustainable Home Design

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

    Competition on the Horizon | Department of Energy Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon Solar Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon July 13, 2015 - 2:15pm Addthis The New York City College of Technology is weatherproofing its house, called DURA, at a Brooklyn Navy Yard construction site. | Photo courtesy of New York City College of Technology. The New York City College of Technology is weatherproofing

  2. Towards a Design of a Complete Solar Water Splitting System

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

    Towards a Design of a Complete Solar Water Splitting System 1 Feb 2013 BISfuel© : A team of Bisfuel researchers led by Devens Gust, Ana Moore and Tom Moore has designed and characterized an artificial photosynthetic reaction center inspired by natural Photosystem II and comprising a highly oxidizing porphyrin linked to a biomimetic electron transfer relay and a porphyrin electron acceptor. Two articles with the results of the study have appeared in September special issue of PNAS "Chemical

  3. Best Practices in the Design of Utility Solar Programs | Department of

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

    Energy Best Practices in the Design of Utility Solar Programs Best Practices in the Design of Utility Solar Programs This presentation summarizes the introductory information provided by NREL during the Best Practices in the Design of Utility Solar Programs Webinar on September 27, 2012. utility_design_intro_nrel.pdf (254.42 KB) More Documents & Publications Residential Solar Valuation Rates Designing Effective Renewables Programs text_alternative_stat_webinar_2012_7_18.docx

  4. Control design deficiencies in HUD solar demonstration projects

    SciTech Connect

    Freeborne, W.E.

    1985-01-01

    The Department of Housing and Urban Devlopment (HUD) residential solar heating and cooling demonstration program provided funding support for over 600 solar projects. These projects provide the largest single data base of solar heating and cooling experience now available. These data suggest that controls were problematic in many of the active and passive heating and domestic and domestic hot water systems in the program. This paper will assess the active system modes of operation and the control components as to their ability to perform as intended. A large number of systems in the demonstration program experienced control problems during testing, checkout, and operation (there were 238 reported control problems involving 192 systems). Frequently, trouble-shooting site visitors found control problems had disabled the whole system or caused a portion of the system to malfunction. The consequences are not as significant on the more carefully designed systems (i.e., the auxiliary still functions) but, on systems with inappropriately designed solar-auxiliary interfaces, the homeowners often were without adequate heat. The most common control problems involved excessive modes in system and, therefore, control design; errors in sensor set points, location, or installation; and poorly engineered or installed wiring to and from controller panels.

  5. SolarOil Project, Phase I preliminary design report. [Solar Thermal Enhanced Oil Recovery project

    SciTech Connect

    Baccaglini, G.; Bass, J.; Neill, J.; Nicolayeff, V.; Openshaw, F.

    1980-03-01

    The preliminary design of the Solar Thermal Enhanced Oil Recovery (SolarOil) Plant is described in this document. This plant is designed to demonstrate that using solar thermal energy is technically feasible and economically viable in enhanced oil recovery (EOR). The SolarOil Plant uses the fixed mirror solar concentrator (FMSC) to heat high thermal capacity oil (MCS-2046) to 322/sup 0/C (611/sup 0/F). The hot fluid is pumped from a hot oil storage tank (20 min capacity) through a once-through steam generator which produces 4.8 MPa (700 psi) steam at 80% quality. The plant net output, averaged over 24 hr/day for 365 days/yr, is equivalent to that of a 2.4 MW (8.33 x 10/sup 6/ Btu/hr) oil-fired steam generator having an 86% availability. The net plant efficiency is 57.3% at equinox noon, a 30%/yr average. The plant will be demonstrated at an oilfield site near Oildale, California.

  6. Design of nitride semiconductors for solar energy conversion

    SciTech Connect

    Zakutayev, Andriy

    2016-01-01

    Nitride semiconductors are a promising class of materials for solar energy conversion applications, such as photovoltaic and photoelectrochemical cells. Nitrides can have better solar absorption and electrical transport properties than the more widely studied oxides, as well as the potential for better scalability than other pnictides or chalcogenides. In addition, nitrides are also relatively unexplored compared to other chemistries, so they provide a great opportunity for new materials discovery. This paper reviews the recent advances in the design of novel semiconducting nitrides for solar energy conversion technologies. Both binary and multinary nitrides are discussed, with a range of metal chemistries (Cu3N, ZnSnN2, Sn3N4, etc.) and crystal structures (delafossite, perovskite, spinel, etc.), including a brief overview of wurtzite III-N materials and devices. The current scientific challenges and promising future directions in the field are also highlighted.

  7. The Role of Electricity Markets and Market Design in Integrating Solar Generation: Solar Integration Series. 2 of 3 (Brochure)

    SciTech Connect

    Solar Energy Technologies Program

    2011-05-03

    The second out of a series of three fact sheets describing the role of electricity markets and market design in integrating solar generation.

  8. Optofluidic solar concentrators using electrowetting tracking: Concept, design, and characterization

    SciTech Connect

    Cheng, JT; Park, S; Chen, CL

    2013-03-01

    We introduce a novel optofluidic solar concentration system based on electrowetting tracking. With two immiscible fluids in a transparent cell, we can actively control the orientation of fluid fluid interface via electrowetting. The naturally-formed meniscus between the two liquids can function as a dynamic optical prism for solar tracking and sunlight steering. An integrated optofluidic solar concentrator can be constructed from the liquid prism tracker in combination with a fixed and static optical condenser (Fresnel lens). Therefore, the liquid prisms can adaptively focus sunlight on a concentrating photovoltaic (CPV) cell sitting on the focus of the Fresnel lens as the sun moves. Because of the unique design, electrowetting tracking allows the concentrator to adaptively track both the daily and seasonal changes of the sun's orbit (dual-axis tracking) without bulky, expensive and inefficient mechanical moving parts. This approach can potentially reduce capital costs for CPV and increases operational efficiency by eliminating the power consumption of mechanical tracking. Importantly, the elimination of bulky tracking hardware and quiet operation will allow extensive residential deployment of concentrated solar power. In comparison with traditional silicon-based photovoltaic (PV) solar cells, the electrowetting-based self-tracking technology will generate,similar to 70% more green energy with a 50% cost reduction. (C) 2013 Elsevier Ltd. All rights reserved.

  9. New Battery Design Could Help Solar and Wind Power the Grid ...

    Office of Environmental Management (EM)

    Battery Design Could Help Solar and Wind Power the Grid New Battery Design Could Help Solar and Wind Power the Grid April 24, 2013 - 4:20pm Addthis NEWS MEDIA CONTACT (202) ...

  10. ANSER Center Chemists Design a First-of-its-Kind Solar Cell Experiment...

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

    ANSER Center Chemists Design a First-of-its-Kind Solar Cell Experiment for General Chemistry Students Home > News & Events > ANSER Chemists Design First Solar Cell Lab for Gen Chem ...

  11. Design and test of non-evacuated solar collectors with compound...

    Office of Scientific and Technical Information (OSTI)

    Design and test of non-evacuated solar collectors with compound parabolic concentrators Citation Details In-Document Search Title: Design and test of non-evacuated solar collectors ...

  12. Guidelines for selecting a solar heating, cooling or hot water design

    SciTech Connect

    Kelly, C.J. Jr.

    1981-12-01

    Guidelines are presented for the professional who may have to choose between competing solar heating and cooling designs for buildings. The experience of the National Solar Data Network in monitoring over 100 solar installations are drawn upon. Three basic principles and a design selection checklist are developed which will aid in choosing the most cost effective design.

  13. Using Passive Solar Design to Save Money and Energy | Department of Energy

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

    Using Passive Solar Design to Save Money and Energy Using Passive Solar Design to Save Money and Energy October 17, 2014 - 9:45am Q&A What do you want to know about solar energy at home? Tell Us Addthis Passive solar design uses carefully designed overhangs and reflective coatings on windows, exterior walls, and roofs to provide comfort during the cooling season. | Photo courtesy of Jason Flakes, U.S. Department of Energy Passive solar design uses carefully designed overhangs and reflective

  14. Automated solar collector installation design including ability to define heterogeneous design preferences

    DOEpatents

    Wayne, Gary; Frumkin, Alexander; Zaydman, Michael; Lehman, Scott; Brenner, Jules

    2013-01-08

    Embodiments may include systems and methods to create and edit a representation of a worksite, to create various data objects, to classify such objects as various types of pre-defined "features" with attendant properties and layout constraints. As part of or in addition to classification, an embodiment may include systems and methods to create, associate, and edit intrinsic and extrinsic properties to these objects. A design engine may apply of design rules to the features described above to generate one or more solar collectors installation design alternatives, including generation of on-screen and/or paper representations of the physical layout or arrangement of the one or more design alternatives. Embodiments may also include definition of one or more design apertures, each of which may correspond to boundaries in which solar collector layouts should comply with distinct sets of user-defined design preferences. Distinct apertures may provide heterogeneous regions of collector layout according to the user-defined design preferences.

  15. Automated solar collector installation design including ability to define heterogeneous design preferences

    DOEpatents

    Wayne, Gary; Frumkin, Alexander; Zaydman, Michael; Lehman, Scott; Brenner, Jules

    2014-04-29

    Embodiments may include systems and methods to create and edit a representation of a worksite, to create various data objects, to classify such objects as various types of pre -defined "features" with attendant properties and layout constraints. As part of or in addition to classification, an embodiment may include systems and methods to create, associate, and edit intrinsic and extrinsic properties to these objects. A design engine may apply of design rules to the features described above to generate one or more solar collectors installation design alternatives, including generation of on-screen and/or paper representations of the physical layout or arrangement of the one or more design alternatives. Embodiments may also include definition of one or more design apertures, each of which may correspond to boundaries in which solar collector layouts should comply with distinct sets of user-defined design preferences. Distinct apertures may provide heterogeneous regions of collector layout according to the user-defined design preferences.

  16. NREL Designs Promising New Oxides for Solar Cells (Fact Sheet)

    SciTech Connect

    Not Available

    2012-04-01

    High-efficiency, thin-film solar cells require electrical contacts with high electrical conductivity, and the top contact must also have high optical transparency. This need is currently met by transparent conducting oxides (TCOs), which conduct electricity but are 90% transparent to visible light. Scientists at the National Renewable Energy Laboratory (NREL) have derived three key design principles for selecting promising materials for TCO contacts. NREL's application of these design principles has resulted in a 10,000-fold improvement in conductivity for one TCO material.

  17. The Globus Galaxies Platform. Delivering Science Gateways as a Service

    SciTech Connect

    Madduri, Ravi; Chard, Kyle; Chard, Ryan; Lacinski, Lukasz; Rodriguez, Alex; Sulakhe, Dinanath; Kelly, David; Dave, Utpal; Foster, Ian

    2015-04-29

    We use public cloud computers to host sophisticated scientific data; software is then used to transform scientific practice by enabling broad access to capabilities previously available only to the few. The primary obstacle to more widespread use of public clouds to host scientific software (‘cloud-based science gateways’) has thus far been the considerable gap between the specialized needs of science applications and the capabilities provided by cloud infrastructures. We describe here a domain-independent, cloud-based science gateway platform, the Globus Galaxies platform, which overcomes this gap by providing a set of hosted services that directly address the needs of science gateway developers. The design and implementation of this platform leverages our several years of experience with Globus Genomics, a cloud-based science gateway that has served more than 200 genomics researchers across 30 institutions. Building on that foundation, we have also implemented a platform that leverages the popular Galaxy system for application hosting and workflow execution; Globus services for data transfer, user and group management, and authentication; and a cost-aware elastic provisioning model specialized for public cloud resources. We describe here the capabilities and architecture of this platform, present six scientific domains in which we have successfully applied it, report on user experiences, and analyze the economics of our deployments. Published 2015. This article is a U.S. Government work and is in the public domain in the USA.

  18. GATEWAY Demonstration Outdoor Projects | Department of Energy

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

    Outdoor Projects GATEWAY Demonstration Outdoor Projects DOE shares the results of completed GATEWAY demonstration projects, publishing detailed reports that include analysis of data collected, projected energy savings, economic analyses, and user feedback. Report briefs summarize key findings in a quick-scan format. Both the reports and briefs are available as Adobe Acrobat PDFs. Completed Outdoor Projects yuma3-thumb.jpg LED Area Lighting Retrofit: Yuma Border Patrol Along the Yuma Sector

  19. NERSC Gateways Pave Way for 'Team Science'

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

    NERSC's Science Gateways Pave Way for 'Team Science' NERSC Gateways Pave Way for 'Team Science' Computational scientists at NERSC work with researchers around the globe to develop online tools that are changing the way they compute and collaborate March 12, 2014 Contact: Kathy Kincade, +1 510 495 2124, kkincade@lbl.gov For nearly a decade, computational scientists at the Department of Energy's National Energy Scientific Research Computing Center (NERSC) have been working with researchers around

  20. Constructal method to optimize solar thermochemical reactor design

    SciTech Connect

    Tescari, S.; Mazet, N.; Neveu, P.

    2010-09-15

    The objective of this study is the geometrical optimization of a thermochemical reactor, which works simultaneously as solar collector and reactor. The heat (concentrated solar radiation) is supplied on a small peripheral surface and has to be dispersed in the entire reactive volume in order to activate the reaction all over the material. A similarity between this study and the point to volume problem analyzed by the constructal approach (Bejan, 2000) is evident. This approach was successfully applied to several domains, for example for the coupled mass and conductive heat transfer (Azoumah et al., 2004). Focusing on solar reactors, this work aims to apply constructal analysis to coupled conductive and radiative heat transfer. As a first step, the chemical reaction is represented by a uniform heat sink inside the material. The objective is to optimize the reactor geometry in order to maximize its efficiency. By using some hypothesis, a simplified solution is found. A parametric study provides the influence of different technical and operating parameters on the maximal efficiency and on the optimal shape. Different reactor designs (filled cylinder, cavity and honeycomb reactors) are compared, in order to determine the most efficient structure according to the operating conditions. Finally, these results are compared with a CFD model in order to validate the assumptions. (author)

  1. Rethinking Standby & Fixed Cost Charges: Regulatory & Rate Design Pathways to Deeper Solar PV Cost Reductions

    Office of Energy Efficiency and Renewable Energy (EERE)

    While solar PV's impact on utilities has been frequently discussed the past year, little attention has been paid to the potentially impact posed by solar PV-specific rate designs (often informally referred to as solar "fees" or "taxes") upon non-hardware "soft" cost reductions. In fact, applying some rate designs to solar PV customers could potentially have a large impact on the economics of PV systems.

  2. Becoming SolSmart: Communities Strive for Solar Friendly Designation

    Energy.gov [DOE]

    By adopting solar friendly practices, like streamlining the permitting process and providing online resources for local solar development, communities position themselves for greater solar investment opportunities. A new SunShot funded program called SolSmart aims to capitalize on this effort by recognizing communities who make it faster and easier to go solar.

  3. DOE Publishes GATEWAY Report on Pedestrian Friendly Outdoor Lighting

    Energy.gov [DOE]

    The U.S. Department of Energy (DOE) has published a new GATEWAY report entitled Pedestrian Friendly Outdoor Lighting. Recognizing that pedestrian lighting has different criteria for success than street and area lighting, GATEWAY followed t

  4. Price of Northeast Gateway Natural Gas LNG Imports from Trinidad...

    Energy Information Administration (EIA) (indexed site)

    Price of Northeast Gateway Natural Gas LNG Imports from Trinidad and Tobago (Dollars per ... U.S. Price of Liquefied Natural Gas Imports by Point of Entry Northeast Gateway LNG ...

  5. Price of Northeast Gateway Natural Gas LNG Imports (Dollars per...

    Energy Information Administration (EIA) (indexed site)

    Price of Northeast Gateway Natural Gas LNG Imports (Dollars per Thousand Cubic Feet) ... U.S. Price of Liquefied Natural Gas Imports by Point of Entry Northeast Gateway LNG ...

  6. Text-Alternative Version: Smithsonian GATEWAY Demonstration Video

    Energy.gov [DOE]

    Following is a text version of a video about the GATEWAY demonstration project at the Smithsonian American Art Museum.

  7. Antireflection Coating Design for Series Interconnected Multi-Junction Solar Cells

    SciTech Connect

    AIKEN,DANIEL J.

    1999-11-29

    AR coating design for multi-junction solar cells can be more challenging than in the single junction case. Reasons for this are discussed. Analytical expressions used to optimize AR coatings for single junction solar cells are extended for use in monolithic, series interconnected multi-junction solar cell AR coating design. The result is an analytical expression which relates the solar cell performance (through J{sub SC}) directly to the AR coating design through the device reflectance. It is also illustrated how AR coating design can be used to provide an additional degree of freedom for current matching multi-junction devices.

  8. New Selection Metric for Design of Thin-Film Solar Cell Absorber...

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

    New Selection Metric for Design of Thin-Film Solar Cell Absorber Materials Research Details * SLME account s for the physics of absorption, emission, and recombination by directly ...

  9. Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) Funding Opportunity

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) program supports projects that evaluate the degradation and failure mechanisms of concentrating...

  10. SSL GATEWAY UNIVERSITY OF FLORIDA DANCE SHOWCASE | Department of Energy

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

    SSL GATEWAY UNIVERSITY OF FLORIDA DANCE SHOWCASE SSL GATEWAY UNIVERSITY OF FLORIDA DANCE SHOWCASE View the video showing side-by-side dance performances with halogen and LED sidelighting as part of the Solid-State Lighting GATEWAY demonstration at the University of Florida. Solid-State Lighting Home About the Solid-State Lighting Program Research & Development Understanding SSL Information Resources

  11. Solar Decathlon 2013: Designing the Houses of Today | Department...

    Energy.gov [DOE] (indexed site)

    in the teams hometown of Middlebury, Vermont. The result: The team created a Solar Path -- a walkway under the free-standing solar panels to the front of the house. |...

  12. City of Tucson- Solar Design Requirement for Homes

    Office of Energy Efficiency and Renewable Energy (EERE)

    To comply with this requirement, new homes must either have a complete solar water heating system installed or comply with one of two solar stub-out options. Option one requires the installation...

  13. PV Optics: A Software Package for Solar Cells and Module Design

    SciTech Connect

    Sopori, B.

    2007-01-01

    PV Optics is a user-friendly software package developed to design and analyze solar cells and modules. It is applicable to a variety of optical structures, including thin and thick cells with light-trapping structures and metal optics. Using a combination of wave and ray optics to include effects of coherence and interference, it can be used to design single-junction and multijunction solar cells and modules. This paper describes some basic applications of PV Optics for crystalline and amorphous Si solar cell design. We present examples to examine the effects on solar cell performance of wafer thickness, antireflection coating thickness, texture height, and metal loss.

  14. Characteristics, design implications, and applicability of passive solar heating systems for buildings

    SciTech Connect

    Givoni, B. )

    1991-01-01

    The paper reviews the performance characteristics of various passive solar heating systems for buildings, the main design factors affecting their performance, the relative advantages and main problems associated with them, and their applicability to different building types and climatic regions. Emphasis is placed on the architectural design issues associated with the different passive solar heating systems and to the problems that may be encountered when passive solar heating is applied in regions with hot summers.

  15. U-173: Symantec Web Gateway Multiple Vulnerabilities

    Energy.gov [DOE]

    Several vulnerabilities were reported in Symantec Web Gateway. A remote user can include and execute arbitrary code on the target system. A remote user can conduct cross-site scripting attacks. A remote user can view/delete/upload files on the target system.

  16. SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 4. Saudi Engineering Solar Energy Applications System Design Study

    SciTech Connect

    Not Available

    1985-01-01

    Literature summarizing a study on the Saudi Arabian solar controlled environment agriculture system is presented. Specifications and performance requirements for the system components are revealed. Detailed performance and cost analyses are used to determine the optimum design. A preliminary design of an engineering field test is included. Some weather data are provided for Riyadh, Saudi Arabia. (BCS)

  17. Value of Solar. Program Design and Implementation Considerations...

    Office of Scientific and Technical Information (OSTI)

    Comparing the solar costs with the hypothetical VOS rates illustrates the various market types that may form under a VOS program, in different locations. Authors: Taylor, Mike 1 ...

  18. Becoming SolSmart: Communities Strive for Solar Friendly Designation...

    Energy.gov [DOE] (indexed site)

    communities position themselves for greater solar investment opportunities. A new SunShot funded program aims to ... State and Local Spotlight - May 2016 Energy Department ...

  19. EERE Success Story-Drones Help Solar Site Design Take Flight | Department

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

    of Energy Drones Help Solar Site Design Take Flight EERE Success Story-Drones Help Solar Site Design Take Flight November 1, 2016 - 12:37pm Addthis SunPower is using drones and robotics to improve the development and operation of large-scale solar projects. Photo courtesy of SunPower. SunPower is using drones and robotics to improve the development and operation of large-scale solar projects. Photo courtesy of SunPower. The commercial and civic benefits of drones are growing-from surveying

  20. Solar

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Sciences Applications National Solar Thermal Test Facility Nuclear Energy ...

  1. How to solve materials and design problems in solar heating and cooling. Energy technology review No. 77

    SciTech Connect

    Ward, D.S.; Oberoi, H.S.; Weinstein, S.D.

    1982-01-01

    A broad range of difficulties encountered in active and passive solar space heating systems and active solar space cooling systems is covered. The problems include design errors, installation mistakes, inadequate durability of materials, unacceptable reliability of components, and wide variations in performance and operation of different solar systems. Feedback from designers and manufacturers involved in the solar market is summarized. The designers' experiences with and criticisms of solar components are presented, followed by the manufacturers' replies to the various problems encountered. Information is presented on the performance and operation of solar heating and cooling systems so as to enable future designs to maximize performance and eliminate costly errors. (LEW)

  2. BASSET: Scalable Gateway Finder in Large Graphs

    SciTech Connect

    Tong, H; Papadimitriou, S; Faloutsos, C; Yu, P S; Eliassi-Rad, T

    2010-11-03

    Given a social network, who is the best person to introduce you to, say, Chris Ferguson, the poker champion? Or, given a network of people and skills, who is the best person to help you learn about, say, wavelets? The goal is to find a small group of 'gateways': persons who are close enough to us, as well as close enough to the target (person, or skill) or, in other words, are crucial in connecting us to the target. The main contributions are the following: (a) we show how to formulate this problem precisely; (b) we show that it is sub-modular and thus it can be solved near-optimally; (c) we give fast, scalable algorithms to find such gateways. Experiments on real data sets validate the effectiveness and efficiency of the proposed methods, achieving up to 6,000,000x speedup.

  3. Handbook of experiences in the design and installation of solar heating and cooling systems

    SciTech Connect

    Ward, D.S.; Oberoi, H.S.

    1980-07-01

    A large array of problems encountered are detailed, including design errors, installation mistakes, cases of inadequate durability of materials and unacceptable reliability of components, and wide variations in the performance and operation of different solar systems. Durability, reliability, and design problems are reviewed for solar collector subsystems, heat transfer fluids, thermal storage, passive solar components, piping/ducting, and reliability/operational problems. The following performance topics are covered: criteria for design and performance analysis, domestic hot water systems, passive space heating systems, active space heating systems, space cooling systems, analysis of systems performance, and performance evaluations. (MHR)

  4. Global Science Gateway Now Open | Department of Energy

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

    Now Open Global Science Gateway Now Open June 22, 2007 - 2:07pm Addthis WorldWideScience.org opens public access to more than 200 million pages of international research information WASHINGTON, DC-The U.S. Department of Energy (DOE) and the British Library, along with eight other participating countries, today opened an online global gateway to science information from 15 national portals. The gateway, WorldWideScience.org, gives citizens, researchers and anyone interested in science the

  5. DOE Announces International Agreement on Global Science Online Gateway |

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

    Department of Energy International Agreement on Global Science Online Gateway DOE Announces International Agreement on Global Science Online Gateway June 12, 2008 - 1:30pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today announced the establishment of a multilateral alliance to govern the rapidly growing online gateway to international scientific research information--WorldWideScience.org. Officials from organizations representing 38 countries formalized their commitment

  6. New Multijunction Design Leads to Ultra-Efficient Solar Cell...

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

    Four-junction III-V multijunction cell uses buffer layers and other innovations to reach 45.6% efficiency at 690 suns NREL scientists have shown that four-junction solar cells ...

  7. Gateway:Incentives and Policies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gateway:Incentives) Jump to: navigation, search Incentives and Policies for Renewable Energy and Energy Efficiency Renewables & Energy Efficiency Incentives and Policies by State...

  8. REEGLE - Clean Energy Information Gateway | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gateway (Redirected from Reegle Search Engine for Renewable Energy and Energy Efficiency) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: reegle.info - clean...

  9. Gateway Ethanol LLC formerly Wildcat Bio Energy LLC | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Ethanol LLC formerly Wildcat Bio Energy LLC Jump to: navigation, search Name: Gateway Ethanol LLC (formerly Wildcat Bio-Energy LLC) Place: Pratt, Kansas Zip: 67124 Product:...

  10. V-106: Citrix Access Gateway Unspecified Security Bypass Vulnerability

    Energy.gov [DOE]

    A vulnerability has been reported in Citrix Access Gateway, which can be exploited by malicious people to bypass certain security restrictions.

  11. Solid State Lighting: GATEWAY and CALiPER

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

    ... reverts to low state Department of Labor Headquarters Parking Garage, Washington, DC 7 | Building Technologies Office eere.energy.gov Distinctive GATEWAY Characteristics * ...

  12. Open MSI : a Mass Spectrometry Imaging Science Gateway

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

    Gateway NERSC OSF Room 238 April 11, 2013 Ben Bowen Berkeley Lab Metabolite and protein analysis is vital to understanding the phenotype of a biological sample....

  13. Gateway:Low Emission Development Strategies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Leds-Graphics 03.PNG Low Emission Development Strategies (LEDS) Gateway Hello why do you have 2 pficial LEDS pages? This website supports the creation and...

  14. Gateway:Amrica Latina/Rendimiento, costos y ms informacin...

    OpenEI (Open Energy Information) [EERE & EIA]

    Rendimiento, costos y ms informacin sobre las tecnologas limpias Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleGateway:AmricaLatina...

  15. Northeast Gateway Natural Gas Liquefied Natural Gas Imports from...

    Gasoline and Diesel Fuel Update

    Release Date: 10302015 Next Release Date: 11302015 Referring Pages: U.S. Liquefied Natural Gas Imports by Point of Entry Northeast Gateway LNG Imports from TrinidadTobago...

  16. Northeast Gateway Natural Gas Liquefied Natural Gas Imports ...

    Gasoline and Diesel Fuel Update

    data. Release Date: 10302015 Next Release Date: 11302015 Referring Pages: U.S. Liquefied Natural Gas Imports by Point of Entry Northeast Gateway LNG Imports from All Countries...

  17. Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar

    Energy.gov [DOE]

    The SunShot Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) program is taking a physics- and chemistry-based approach to identifying failure modes...

  18. Design considerations for concentrating solar power tower systems employing molten salt.

    SciTech Connect

    Moore, Robert Charles; Siegel, Nathan Phillip; Kolb, Gregory J.; Vernon, Milton E.; Ho, Clifford Kuofei

    2010-09-01

    The Solar Two Project was a United States Department of Energy sponsored project operated from 1996 to 1999 to demonstrate the coupling of a solar power tower with a molten nitrate salt as a heat transfer media and for thermal storage. Over all, the Solar Two Project was very successful; however many operational challenges were encountered. In this work, the major problems encountered in operation of the Solar Two facility were evaluated and alternative technologies identified for use in a future solar power tower operating with a steam Rankine power cycle. Many of the major problems encountered can be addressed with new technologies that were not available a decade ago. These new technologies include better thermal insulation, analytical equipment, pumps and values specifically designed for molten nitrate salts, and gaskets resistant to thermal cycling and advanced equipment designs.

  19. SOLCOST - Version 3. 0. Solar energy design program for non-thermal specialists

    SciTech Connect

    Not Available

    1980-05-01

    The SOLCOST solar energy design program is a public domain computerized design tool intended for use by non-thermal specialists to size solar systems with a methodology based on life cycle cost. An overview of SOLCOST capabilities and options is presented. A detailed guide to the SOLCOST input parameters is included. Sample problems showing typical imput decks and resulting SOLCOST output sheets are given. Details of different parts of the analysis are appended. (MHR)

  20. Design of cascaded low cost solar cell with CuO substrate

    SciTech Connect

    Samson, Mil'shtein; Anup, Pillai; Shiv, Sharma; Garo, Yessayan

    2013-12-04

    For many years the main focus of R and D in solar cells was the development of high-efficiency solar convertors. However with solar technology beginning to be a part of national grids and stand-alone power supplies for variety of individual customers, the emphasis has changed, namely, the cost per kilowatt- hour (kW-hr) started to be an important figure of merit. Although Si does dominate the market of solar convertors, this material has total cost of kilowatt-hour much higher than what the power grid is providing presently to customers. It is well known that the cost of raw semiconductor material is a major factor in formulation of the final cost of a solar cell. That motivated us to search and design a novel solar cell using cheap materials. The new p-i-n solar cell consists of hetero-structure cascade of materials with step by step decreasing energy gap. Since the lattice constant of these three materials do differ not more than 2%, the more expensive epitaxial fabrication methods can be used as well. It should be emphasized that designed solar cell is not a cascade of three solar cells connected in series. Our market study shows that Si solar panel which costs $250–400 / m{sup 2} leads to a cost of $0.12–0.30 / kW-hr. To the contrary, CuO based solar cells with Cadmium compounds on top, would cost $100 / m{sup 2}. This will allow the novel solar cell to produce electricity at a cost of $0.06–0.08 / kW-hr.

  1. Study Design And Realization Of Solar Water Heater

    SciTech Connect

    Lounis, M.; Boudjemaa, F.; Akil, S. Kouider

    2011-01-17

    Solar is one of the most easily exploitable energy, it is moreover inexhaustible. His applications are many and are varied. The heating of the domestic water is one of the most immediate, simplest and also of most widespread exploitation of the solar energy. Algeria, from its geographical situation, it deposits one of the largest high sun surface expositions in the world. The exposition duration of the almost territory exceeds 2000 hours annually and can reach the 3900 hours (high plateaus and Sahara). By knowing the daily energy received by 1 m{sup 2} of a horizontal surface of the solar thermal panel is nearly around 1700 KWh/m{sup 2} a year in the north and 2263 KWh/m{sup 2} a year in the south of the country, we release the most important and strategic place of the solar technologies in the present and in the future for Algeria. This work consists to study, conceive and manufacture solar water heating with the available local materials so, this type of the energy will be profitable for all, particularly the poor countries. If we consider the illumination duration of the panel around 6 hours a day, the water heat panel manufactured in our laboratory produce an equivalent energy of 11.615 KWh a day so, 4239 KWh a year. These values of energy can be easily increased with performing the panel manufacture.

  2. Design considerations for solar industrial process heat systems: nontracking and line focus collector technologies

    SciTech Connect

    Kutscher, C.F.

    1981-03-01

    Items are listed that should be considered in each aspect of the design of a solar industrial process heat system. The collector technologies covered are flat-plate, evacuated tube, and line focus. Qualitative design considerations are stressed rather than specific design recommendations. (LEW)

  3. Design and investigation of a novel concentrator used in solar fiber lamp

    SciTech Connect

    He, Kaiyan; Zheng, Hongfei; Taotao, Jing; Dai; Li, Zhengliang

    2009-11-15

    A novel concentrator used in solar fiber lamp has been designed and made. The method of the design has been introduced. The lamp has been tested under the real solar condition and the experiment curves have been given. The light transmission will be influenced by the structure of the lamp and the diameter of the fiber, which has been studied in this paper. The experimental results show that the brightness of this solar fiber lamp is about the brightness of a 6-W ordinary electrical energy-saving lamp. The computer simulation for the lamp has been presented and the improvement schemes are proposed. (author)

  4. Passive solar design strategies: Remodeling guidelines for conserving energy at home

    SciTech Connect

    Not Available

    1991-01-01

    The idea of passive solar is simple, but applying it effectively does require information and attention to the details of design and construction. Some passive solar techniques are modest and low-cost, and require only small changes in remodeler's typical practice. At the other end of the spectrum, some passive solar systems can almost eliminate a house's need for purchased heating (and in some cases, cooling) energy -- but probably at a relatively high first cost. In between are a broad range of energy-conserving passive solar techniques. Whether or not they are cost-effective, practical and attractive enough to offer a market advantage to any individual remodeler depends on very specific factors such as local costs, climate, and market characteristics. Passive solar design strategies: Remodeling Guidelines For Conserving Energy At Homes is written to help give remodelers the information they need to make these decisions. Passive Solar Design Strategies is a package in three basic parts: The Guidelines contain information about passive solar techniques and how they work, and provides specific examples of systems which will save various percentages of energy; The Worksheets offer a simple, fill-in-the-blank method to pre-evaluate the performance of a specific design; The Worked Example demonstrates how to complete the worksheets for a typical residence.

  5. Value of Solar. Program Design and Implementation Considerations

    SciTech Connect

    Taylor, Mike; McLaren, Joyce; Cory, Karlynn; Davidovich, Ted; Sterling, John; Makhyoun, Miriam

    2015-03-01

    Here, we present an analysis that assesses the potential market type that might form in the United States under a VOS rate, given current national average solar costs and various incentive scenarios, for the most populous city in each state. Three hypothetical VOS tariffs were developed, based on assumptions of avoided fuel costs, avoided capacity, environmental benefits, and line losses, to represent a of range of possible VOS rates. The levelized cost of solar in 50 locations is calculated using NREL’s System Advisor Model (SAM) using input assumptions regarding system size, resource quality, avoided capacity (aka capacity factor) and a variety of incentives. Comparing the solar costs with the hypothetical VOS rates illustrates the various market types that may form under a VOS program, in different locations.

  6. High-performance parallel interface to synchronous optical network gateway

    DOEpatents

    St. John, W.B.; DuBois, D.H.

    1996-12-03

    Disclosed is a system of sending and receiving gateways interconnects high speed data interfaces, e.g., HIPPI interfaces, through fiber optic links, e.g., a SONET network. An electronic stripe distributor distributes bytes of data from a first interface at the sending gateway onto parallel fiber optics of the fiber optic link to form transmitted data. An electronic stripe collector receives the transmitted data on the parallel fiber optics and reforms the data into a format effective for input to a second interface at the receiving gateway. Preferably, an error correcting syndrome is constructed at the sending gateway and sent with a data frame so that transmission errors can be detected and corrected in a real-time basis. Since the high speed data interface operates faster than any of the fiber optic links the transmission rate must be adapted to match the available number of fiber optic links so the sending and receiving gateways monitor the availability of fiber links and adjust the data throughput accordingly. In another aspect, the receiving gateway must have sufficient available buffer capacity to accept an incoming data frame. A credit-based flow control system provides for continuously updating the sending gateway on the available buffer capacity at the receiving gateway. 7 figs.

  7. High-performance parallel interface to synchronous optical network gateway

    DOEpatents

    St. John, Wallace B.; DuBois, David H.

    1996-01-01

    A system of sending and receiving gateways interconnects high speed data interfaces, e.g., HIPPI interfaces, through fiber optic links, e.g., a SONET network. An electronic stripe distributor distributes bytes of data from a first interface at the sending gateway onto parallel fiber optics of the fiber optic link to form transmitted data. An electronic stripe collector receives the transmitted data on the parallel fiber optics and reforms the data into a format effective for input to a second interface at the receiving gateway. Preferably, an error correcting syndrome is constructed at the sending gateway and sent with a data frame so that transmission errors can be detected and corrected in a real-time basis. Since the high speed data interface operates faster than any of the fiber optic links the transmission rate must be adapted to match the available number of fiber optic links so the sending and receiving gateways monitor the availability of fiber links and adjust the data throughput accordingly. In another aspect, the receiving gateway must have sufficient available buffer capacity to accept an incoming data frame. A credit-based flow control system provides for continuously updating the sending gateway on the available buffer capacity at the receiving gateway.

  8. Design for the fabrication of high efficiency solar cells

    DOEpatents

    Simmons, Joseph H.

    1998-01-01

    A method and apparatus for a photo-active region for generation of free carriers when a first surface is exposed to optical radiation. The photo-active region includes a conducting transparent matrix and clusters of semiconductor materials embedded within the conducting transparent matrix. The clusters are arranged in the matrix material so as to define at least a first distribution of cluster sizes ranging from those with the highest bandgap energy near a light incident surface of the photo-active region to those with the smallest bandgap energy near an opposite second surface of the photo-active region. Also disclosed is a method and apparatus for a solar cell. The solar cell includes a photo-active region containing a plurality of semiconductor clusters of varying sizes as described.

  9. Solar Decathlon 2013: Designing the Houses of Today | Department of Energy

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

    Designing the Houses of Today Solar Decathlon 2013: Designing the Houses of Today September 12, 2013 - 12:40pm Addthis The Southern California Institute of Architecture and California Institute of Technology team's 10-month design process resulted in their unique design -- a house made of two prefab modules and canopies that run on a system of rails. | Photo courtesy of SCI-Arc/Caltech. The Southern California Institute of Architecture and California Institute of Technology team's 10-month

  10. System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System (Brochure)

    SciTech Connect

    Not Available

    2011-08-01

    Technical briefing to report the outcomes of a data monitoring effort to determine the nature of solar vent preheat system performance problems at a U.S. military installation. The analysis reports up-to-date research and findings regarding system design, helping to clarify the issue as a factor of system design, rather than a shortcoming of SVP systems.

  11. Control of solar radiation in buildings: a selected bibliography. [Over 70 references on fenestration design

    SciTech Connect

    Harmon, R.B.

    1982-01-01

    Fenestration design synthesizes many factors, including solar radiation control, daylight illumination, direct and reflected glare, the view out of the building, services, and the structure and fabric of the building in terms of energy conservation and costs. This bibliography includes books and articles related to these aspects of fenestration design in various types of structures.

  12. The Solar Thermal Design Assistance Center report of its activities and accomplishments in Fiscal Year 1993

    SciTech Connect

    Menicucci, D.F.

    1994-03-01

    The Solar Thermal Design Assistance Center (STDAC) at Sandia National Laboratories is a resource provided by the US Department of Energy`s Solar Thermal Program. Its major objectives are to accelerate the use of solar thermal systems through (a) direct technical assistance to users, (b) cooperative test, evaluation, and development efforts with private industry, and (c) educational outreach activities. This report outlines the major activities and accomplishments of the STDAC in Fiscal Year 1993. The report also contains a comprehensive list of persons who contacted the STDAC by telephone for information or technical consulting.

  13. Preliminary designs: passive solar manufactured housing. Technical status report

    SciTech Connect

    Not Available

    1980-05-12

    The criteria established to guide the development of the preliminary designs are listed. Three preliminary designs incorporating direct gain and/or sunspace are presented. Costs, drawings, and supporting calculations are included. (MHR)

  14. Solar

    Energy.gov [DOE]

    Learn about the Energy Department's efforts to advance innovative technologies that drive down the cost of solar energy in America.

  15. SOLERAS - Solar Energy Water Desalination Project: Boeing Engineering and Construction. System design final report

    SciTech Connect

    Not Available

    1986-01-01

    The system design for a future commercial solar energy brackish water desalination plant is described. Key features of the plant are discussed along with its configuration selection rationale, design objectives, operation, and performance. The water treatment technology used in the plant is ion exchange pretreatment and single stage reverse osmosis desalination utilizing high-flux membranes. Electrical power needed for plant operation is produced by a solar energy system, which is based on the Brayton cycle having air as the working fluid. Primary solar system components are: heliostat field, central cavity-tube receiver, receiver support tower, thermal energy storage, and a commercial gas turbine generator set. The thermal energy storage subsystem is of the sensible heat brick type and provides a capability for continuous day/night power generation during most weather conditions. This system design was selected in a study of various system alternatives and their life cycle product water costs for a representative site in western Texas.

  16. Solar heating and cooling of residential buildings: design of systems, 1980 edition

    SciTech Connect

    1980-09-01

    This manual was prepared primarily for use in conducting a practical training course on the design of solar heating and cooling systems for residential and small office buildings, but may also be useful as a general reference text. The content level is appropriate for persons with different and varied backgrounds, although it is assumed that readers possess a basic understanding of heating, ventilating, and air-conditioning systems of conventional (non-solar) types. This edition is a revision of the manual with the same title, first printed and distributed by the US Government Printing Office in October 1977. The manual has been reorganized, new material has been added, and outdated information has been deleted. Only active solar systems are described. Liquid and air-heating solar systems for combined space and service water heating or service water heating are included. Furthermore, only systems with proven experience are discussed to any extent.

  17. Miami Students' Solar Decathlon Design Focused on Sustainability

    Energy.gov [DOE]

    The 2011 Florida International University Team designed their home around the ability to use adjustable panels on the outside of the home -- to protect from everything from sunshine to hurricanes.

  18. Increasing Community Access to Solar: Designing and Developing a Shared Solar Photovoltaic System (Fact Sheet), U.S. Department of Energy (DOE)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This document introduces the Energy Department’s new Guide to Community Shared Solar: Utility, Private, and Nonprofit Project Development. The guide is designed to help those who want to develop community shared solar projects—from community organizers and advocates to utility managers and government officials—navigate the process of developing shared systems, from early planning to implementation.

  19. Newman Unit 1 advanced solar repowering advanced conceptual design. Final report

    SciTech Connect

    1982-04-01

    The Newman Unit 1 solar repowering design is a water/steam central receiver concept supplying superheated steam. The work reported is to develop a refined baseline conceptual design that has potential for construction and operation by 1986, makes use of existing solar thermal technology, and provides the best economics for this application. Trade studies performed in the design effort are described, both for the conceptual design of the overall system and for the subsystem conceptual design. System-level functional requirements, design, operation, performance, cost, safety, environmental, institutional, and regulatory considerations are described. Subsystems described include the collector, receiver, fossil energy, electrical power generating, and master control subsystems, site and site facilities. The conceptual design, cost, and performance of each subsystem is discussed at length. A detailed economic analysis of the repowered unit is made to realistically assess the economics of the first repowered unit using present cost data for a limited production level for solar hardware. Finally, a development plan is given, including the design, procurement, construction, checkout, startup, performance validation, and commercial operation. (LEW)

  20. GATEWAY Demonstrations: Exploring SSL Product Performance in the Real World

    SciTech Connect

    2013-10-01

    Fact sheet that outlines DOE's GATEWAY technology demonstration program, which evaluates high-performance SSL products for general illumination in a variety of real-world exterior and interior applications.

  1. DOE Publishes GATEWAY Report on Pedestrian Friendly Outdoor Lighting

    Energy.gov [DOE]

    The U.S. Department of Energy (DOE) has published a new GATEWAY report entitled Pedestrian Friendly Outdoor Lighting. Recognizing that pedestrian lighting has different criteria for success than...

  2. DOE Publishes GATEWAY Report on LED Lighting in a Performing...

    Energy Saver

    LED Lighting in a Performing Arts Setting DOE Publishes GATEWAY Report on LED Lighting in a Performing Arts Setting August 6, 2014 - 2:46pm Addthis The U.S. Department of Energy ...

  3. Price of Northeast Gateway Natural Gas LNG Imports from Trinidad...

    Annual Energy Outlook

    and Tobago (Dollars per Thousand Cubic Feet) Price of Northeast Gateway Natural Gas LNG Imports from Trinidad and Tobago (Dollars per Thousand Cubic Feet) Year Jan Feb Mar Apr...

  4. Price of Northeast Gateway Natural Gas LNG Imports (Dollars per...

    Gasoline and Diesel Fuel Update

    (Dollars per Thousand Cubic Feet) Price of Northeast Gateway Natural Gas LNG Imports (Dollars per Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2015...

  5. Gateway:Amrica Latina/Energas Renovables | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    HidraulicaLA.jpg Energa Hidrulica BiomasaLA.jpg Biomasa MarinaLA.jpg Energa Marina Pgina principal Retrieved from "http:en.openei.orgwindex.php?titleGateway:Amr...

  6. SOLERAS - Solar Energy Water Desalination Project: Exxon Research and Engineering. System design final report, Volume 1. Design description seawater feed (System A)

    SciTech Connect

    Not Available

    1985-01-01

    The design of a solar powered water desalination system is presented. Design data including insolation and climate of the Yanbu, Saudi Arabia site are included. Two solar desalination designs were developed including: (1) a conceptual baseline plant powered by a solar central receiver-heliostat field, and (2) a pilot plant that demonstrates and evaluates the design features of the baseline plant. The desalination process involves a hybrid reverse osmosis/multiple effect distillation process. The performance and economics of the design plants are analyzed. (BCS)

  7. DOE Publishes GATEWAY Report on Successful LED Wall Washer Retrofit |

    Energy Saver

    Department of Energy Successful LED Wall Washer Retrofit DOE Publishes GATEWAY Report on Successful LED Wall Washer Retrofit August 5, 2015 - 1:00pm Addthis The U.S. Department of Energy has released a report on a GATEWAY demonstration, in which maintenance and energy costs were significantly reduced while retaining the quality of light when LED modules replaced 87 halogen lamps in existing wall washers at the University of Maryland's (UMD) Clarice Smith Performing Arts Center. The project

  8. High-performance parallel interface to synchronous optical network gateway

    DOEpatents

    St. John, Wallace B.; DuBois, David H.

    1998-08-11

    A digital system provides sending and receiving gateways for HIPPI interfaces. Electronic logic circuitry formats data signals and overhead signals in a data frame that is suitable for transmission over a connecting fiber optic link. Multiplexers route the data and overhead signals to a framer module. The framer module allocates the data and overhead signals to a plurality of 9-byte words that are arranged in a selected protocol. The formatted words are stored in a storage register for output through the gateway.

  9. Design and Performance of Solar Decathlon 2011 High-Penetration Microgrid: Preprint

    SciTech Connect

    Stafford, B.; Coddington, M.; Butt, R.; Solomon, S.; Wiegand, G.; Wagner, C.; Gonzalez, B.

    2012-04-01

    The U.S. Department of Energy Solar Decathlon challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. The Solar Decathlon 2011 was held in Washington, D.C., from September 23 to October 2, 2011 . A high-penetration microgrid was designed, installed, and operated for the Solar Decathlon 2011 to grid-connect 19 highly energy-efficient, solar-powered competition houses to a single utility connection point. The capacity penetration of this microgrid (defined as maximum PV generation divided by maximum system load over a two-week period) was 74% based on 1-minute averaged data. Temporary, ground-laid conductors and electrical distribution equipment were installed to grid-connect the Solar Decathlon village, which included the houses as well as other electrical loads used by the event organizers. While 16 of the houses were connected to the 60 Hz microgrid, three houses from Belgium, China, and New Zealand were supplied with 50 Hz power. The design of the microgrid, including the connection of the houses powered by 50 Hz and a standby diesel generator, is discussed in this paper. In addition to the utility-supplied net energy meters at each house, a microgrid monitoring system was installed to measure and record energy consumption and PV energy production at 1-second intervals at each house. Bidirectional electronic voltage regulators were installed for groups of competition houses, which held the service voltage at each house to acceptable levels. The design and successful performance of this high-penetration microgrid is presented from the house, microgrid operator, and utility perspectives.

  10. Solar

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

    Applications National Solar Thermal Test Facility ... EnergyWater Nexus EnergyWater History Water Monitoring & ... Market Transformation Fuel Cells Predictive Simulation of ...

  11. Solar

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

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

  12. Sunspace Minnesota: passive solar design for winter resorts. Period covered, August 1979-October 1980

    SciTech Connect

    Johnson, J.M.

    1980-01-01

    Minnesota winter resorts are discussed as to type, size, and use. Energy needs and conservation techniques are described by cabin type and problem areas. Existing cabins are analyzed for conservation opportunities and solar retrofit potential. New cabin designs and concepts are presented including earth sheltered buildings. (MHR)

  13. New Battery Design Could Help Solar and Wind Power the Grid

    Energy.gov [DOE]

    Researchers from the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a low-cost, long-life “flow” battery that could enable solar and wind energy to become major suppliers to the electrical grid.

  14. Solar energy concentrator design and operation. (Latest citations from the NTIS Bibliographic database). Published Search

    SciTech Connect

    Not Available

    1994-04-01

    The bibliography contains citations concerning the design and operation of solar energy concentrators. Topics include system descriptions, performance evaluations, technology reviews and development studies, cost considerations, and materials aspects. Optical properties of various systems, performance simulations, fabrication techniques, and control systems are discussed. Photovoltaic and thermal systems are also considered. (Contains 250 citations and includes a subject term index and title list.)

  15. Solar energy concentrator design and operation. (Latest citations from the NTIS data base). Published Search

    SciTech Connect

    Not Available

    1992-10-01

    The bibliography contains citations concerning the design and operation of solar energy concentrators. Topics include system descriptions, performance evaluations, technology reviews and development studies, cost considerations, and materials aspects. Optical properties of various systems, performance simulations, fabrication techniques, and control systems are discussed. Photovoltaic and thermal systems are also considered. (Contains 250 citations and includes a subject term index and title list.)

  16. Solar photovoltaic applications seminar: design, installation and operation of small, stand-alone photovoltaic power systems

    SciTech Connect

    Not Available

    1980-07-01

    This seminar material was developed primarily to provide solar photovoltaic (PV) applied engineering technology to the Federal community. An introduction to photoconductivity, semiconductors, and solar photovoltaic cells is included along with a demonstration of specific applications and application identification. The seminar details general systems design and incorporates most known information from industry, academia, and Government concerning small solar cell power system design engineering, presented in a practical and applied manner. Solar PV power system applications involve classical direct electrical energy conversion and electric power system analysis and synthesis. Presentations and examples involve a variety of disciplines including structural analysis, electric power and load analysis, reliability, sizing and optimization; and, installation, operation and maintenance. Four specific system designs are demonstrated: water pumping, domestic uses, navigational and aircraft aids, and telecommunications. All of the applications discussed are for small power requirement (under 2 kilowatts), stand-alone systems to be used in remote locations. Also presented are practical lessons gained from currently installed and operating systems, problems at sites and their resolution, a logical progression through each major phase of system acquisition, as well as thorough design reviews for each application.

  17. Design of Molecular Solar Cells via Feedback from Soft X-ray Spectroscopy

    SciTech Connect

    Himpsel, Franz J.

    2015-06-12

    Spectroscopy with soft X-rays was used to develop new materials and novel designs for solar cells and artificial photosynthesis. In order to go beyond the widely-used trial-and-error approach of gradually improving a particular design, we started from the most general layout of a solar cell (or a photo-electrochemical device) and asked which classes of materials are promising for best performance. For example, the most general design of a solar cell consists of a light absorber, an electron donor, and an electron acceptor. These are characterized by four energy levels, which were measured by a combination of spectroscopic X-ray techniques. Tuning synchrotron radiation to the absorption edges of specific elements provided element- and bond-selectivity. The spectroscopic results were complemented by state-of-the-art calculations of the electronic states. These helped explaining the observed energy levels and the orbitals associated with them. The calculations were extended to a large class of materials (for example thousands of porphyrin dye complexes) in order to survey trends in the energy level structure. A few highlights serve as examples: 1) Organic molecules combining absorber, donor, and acceptor with atomic precision. 2) Exploration of highly p-doped diamond films as inert, transparent electron donors. 3) Surface-sensitive characterization of nanorod arrays used as photoanodes in water splitting. 4) Computational design of molecular complexes for efficient solar cells using two photons.

  18. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume II. Plant specifications

    SciTech Connect

    Price, R. E.

    1983-12-31

    The specifications and design criteria for all plant systems and subsystems used in developing the preliminary design of Carrisa Plains 30-MWe Solar Plant are contained in this volume. The specifications have been organized according to plant systems and levels. The levels are arranged in tiers. Starting at the top tier and proceeding down, the specification levels are the plant, system, subsystem, components, and fabrication. A tab number, listed in the index, has been assigned each document to facilitate document location.

  19. Design of a solar controlled environment agriculture system (SCEAS)

    SciTech Connect

    Landstrom, D.K.; Stickford, G.H.; Talbert, S.G.; Wilkinson, W.H.

    1983-06-01

    The overall objective of the SCEAS project was to integrate advanced greenhouse agriculture technology with various energy sources and innovative cooling/ventilation concepts to demonstrate technical and economic feasibility of these facilities in several climatic regions where conventional greenhouse technology will not permit yearround growing of certain crops. The designed facility is capable of high yields of practically any crop, even temperaturesensitive vegetables such as lettuce, in extremely hostile external environments. The recirculation and ventilation system provides considerable flexibility in precise control of temperature and humidity throughout the year and in reducing water and energy consumption.

  20. Solar Decathlon

    Energy.gov [DOE]

    The Energy Department's Solar Decathlon challenges collegiate teams to design, build and operate solar-powered houses that are cost effective, energy efficient and attractive.

  1. Design of hybrid nanoheterostructure systems for enhanced quantum and solar conversion efficiencies in dye-sensitized solar cells

    SciTech Connect

    Kılıç, Bayram E-mail: kbayramkilic@gmail.com; Telli, Hakan; Başaran, Ali; Pirge, Gursev; Tüzemen, Sebahattin

    2015-04-07

    Dye sensitized solar cells (DSSCs) with an innovative design involving controlled-morphology vertically aligned (VA) ZnO nanowires within mesoporous TiO{sub 2} structures with ultrahigh surface area for implementation as photoanodes are herein reported. Although TiO{sub 2} nanostructures exhibit excellent power conversion efficiency, the electron transport rate is low owing to low electron mobility. To overcome this, ZnO nanowires with high electron mobility have been investigated as potential candidates for photoanodes. However, the power conversion efficiency of ZnO nanowires is still lower than that of TiO{sub 2} owing to their low internal surface area. Consequently, in this work, vertical growth of ZnO nanowires within mesoporous TiO{sub 2} structures is carried out to increase their solar power conversion efficiency. The photovoltaic performance of solar cells using ZnO nanowires, mesoporous TiO{sub 2}, and TiO{sub 2}/ZnO hybrid structures are compared. The VA TiO{sub 2}/ZnO hybrid structures are found to provide direct electron transfer compared with the tortuous pathway of zero-dimensional nanostructures, resulting in an increased conversion efficiency. It is demonstrated that the light scattering of the photoanode film is increased and electron recombination is decreased when an appropriate amount of mesoporous TiO{sub 2} is used as a substrate for ZnO nanowires. The DSSC fabricated with the TiO{sub 2}/ZnO hybrid photoanode prepared with 15.8 wt. % TiO{sub 2} showed the highest conversion efficiency of 7.30%, approximately 5%, 18%, and 40% higher than that of DSSCs fabricated with 3.99 wt. % TiO{sub 2}, pure TiO{sub 2}, and pure ZnO photoanodes, respectively.

  2. solar

    National Nuclear Security Administration (NNSA)

    2%2A en Solar power purchase for DOE laboratories http:nnsa.energy.govmediaroompressreleasessolarpower

  3. V-225: McAfee Email Gateway SMTP Processing Flaw Lets Remote...

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

    5: McAfee Email Gateway SMTP Processing Flaw Lets Remote Users Deny Service V-225: McAfee Email Gateway SMTP Processing Flaw Lets Remote Users Deny Service August 23, 2013 - 1:26am...

  4. Price of Gulf Gateway Natural Gas LNG Imports from Trinidad and...

    Annual Energy Outlook

    Feet) Price of Gulf Gateway Natural Gas LNG Imports from Trinidad and Tobago (Dollars ... U.S. Price of Liquefied Natural Gas Imports by Point of Entry Gulf Gateway, LA LNG Imports ...

  5. Price of Gulf Gateway Natural Gas LNG Imports from Qatar (Dollars...

    Annual Energy Outlook

    Qatar (Dollars per Thousand Cubic Feet) Price of Gulf Gateway Natural Gas LNG Imports from ... U.S. Price of Liquefied Natural Gas Imports by Point of Entry Gulf Gateway, LA LNG Imports ...

  6. Gas Turbine/Solar Parabolic Trough Hybrid Design Using Molten Salt Heat Transfer Fluid: Preprint

    SciTech Connect

    Turchi, C. S.; Ma, Z.

    2011-08-01

    Parabolic trough power plants can provide reliable power by incorporating either thermal energy storage (TES) or backup heat from fossil fuels. This paper describes a gas turbine / parabolic trough hybrid design that combines a solar contribution greater than 50% with gas heat rates that rival those of natural gas combined-cycle plants. Previous work illustrated benefits of integrating gas turbines with conventional oil heat-transfer-fluid (HTF) troughs running at 390?C. This work extends that analysis to examine the integration of gas turbines with salt-HTF troughs running at 450 degrees C and including TES. Using gas turbine waste heat to supplement the TES system provides greater operating flexibility while enhancing the efficiency of gas utilization. The analysis indicates that the hybrid plant design produces solar-derived electricity and gas-derived electricity at lower cost than either system operating alone.

  7. Design of the support structure, drive pedestal, and controls for a solar concentrator

    SciTech Connect

    Goldberg, V.R.; Ford, J.L.; Anderson, A.E. )

    1991-08-01

    The glass/metal McDonnell-Douglas dish is the state-of-the-art of parabolic dish concentrators. Because of the perceived high production cost of this concentrator, the Department of Energy's Solar Thermal Program is developing stretch-membrane technology for large (75 kWt) solar concentrators for integration with receivers and engines in 25 kWe dish-Stirling systems. The objective of this development effort is to reduce the cost of the concentrator while maintaining the high levels of performance characteristic of glass-metal dishes. Under contract to Sandia National Laboratories, Science Applications International Corporation, Solar Kinetics Inc. and WG Associates are developing a faceted stretched-membrane heliostat technology. This design will result in a low-risk, near-term concentrator for dish-Stirling systems. WG Associates has designed the support structure, drives and tracking controls for this dish. The structure is configured to support 12 stretched-membrane, 3.5-meter diameter facets in a shaped dish configuration. The dish design is sized to power a dish-Stirling system capable of producing 25 kW (electric). In the design of the structure, trade-off studies were conducted to determine the best'' facet arrangement, dish contour, dish focal length, tracking control and walk-off protection. As part of the design, in-depth analyses were performed to evaluate pointing accuracy, compliance with AISC steel design codes, and the economics of fabrication and installation. Detailed fabrication and installation drawings were produced, and initial production cost estimates for the dish were developed. These issues, and the final dish design, are presented in this report. 7 refs., 33 figs., 18 tabs.

  8. Gateway:Amrica Latina/Aprender ms sobre las ERNC/Seleccion...

    OpenEI (Open Energy Information) [EERE & EIA]

    Trmica Retrieved from "http:en.openei.orgwindex.php?titleGateway:AmricaLatinaAprendermssobrelasERNCSelecciondeWebinarsPuestaenMarcha,OperacinyComercia...

  9. Solar energy concentrator design and operation. (Latest citations from the NTIS bibliographic database). Published Search

    SciTech Connect

    1996-07-01

    The bibliography contains citations concerning the design and operation of solar energy concentrators. Topics include system descriptions, performance evaluations, technology reviews and development studies, cost considerations, and materials aspects. Optical properties of various systems, performance simulations, fabrication techniques, and control systems are discussed. Photovoltaic and thermal systems are also considered.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  10. Design of Semiconductor-Based Back Reflectors for High Voc Monolithic Multijunction Solar Cells: Preprint

    SciTech Connect

    Garcia, I.; Geisz, J.; Steiner, M.; Olson, J.; Friedman, D.; Kurtz, S.

    2012-06-01

    State-of-the-art multijunction cell designs have the potential for significant improvement before going to higher number of junctions. For example, the Voc can be substantially increased if the photon recycling taking place in the junctions is enhanced. This has already been demonstrated (by Alta Devices) for a GaAs single-junction cell. For this, the loss of re-emitted photons by absorption in the underlying layers or substrate must be minimized. Selective back surface reflectors are needed for this purpose. In this work, different architectures of semiconductor distributed Bragg reflectors (DBR) are assessed as the appropriate choice for application in monolithic multijunction solar cells. Since the photon re-emission in the photon recycling process is spatially isotropic, the effect of the incident angle on the reflectance spectrum is of central importance. In addition, the DBR structure must be designed taking into account its integration into the monolithic multijunction solar cells, concerning series resistance, growth economics, and other issues. We analyze the tradeoffs in DBR design complexity with all these requirements to determine if such a reflector is suitable to improve multijunction solar cells.

  11. PROJECT PROFILE: Solar Electric Power Association (Solar Market...

    Office of Environmental Management (EM)

    Electric Power Association (Solar Market Pathways) PROJECT PROFILE: Solar Electric Power Association (Solar Market Pathways) Title: Community Solar Design Models for Consumer, ...

  12. Design and Analysis of RTGs for Solar and Martian Exploration Missions

    SciTech Connect

    Schock, Alfred

    1990-05-01

    The paper described the results of design, analysis and spacecraft integration studies of Radioisotope Thermoelectric Generators (RTGs) for three unmanned space exploration missions. The three missions, consisting of the Mars Rover and Sample Return (MRSR) mission, the Solar Probe mission, and the Mars Global Net work (MGN) mission, are under study by the Jet Propulsion Laboratory (JPL) for the U.S. National Aeronautics and Space Administration (NASA). The NASA/JPL mission studies are supported by the U.S. Department of Energy's Office of Special Applications (DOE/OSA), which has commissioned Fairchild Space Company to carry out the required RTG design studies.

  13. Sylcom Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sylcom Solar provides the design, research, distribution, construction, operation, maintenance of products and of Photovoltaic Solar, Thermal Solar and Solar Thermoelectric...

  14. Design optimization studies for nonimaging concentrating solar collector tubes. Final technical report

    SciTech Connect

    Winston, R.

    1983-09-30

    The Integrated Stationary Evacuated Concentrator or ISEC solar collector panel has achieved the best high temperature performance ever measured with a stationary collector. A development effort to carry out a review and optimization of the initial proof of concept design has been completed. Changes in the optical design to improve the angular response function and increase the optical efficiency have been determined. A recommended profile design having a concentration ratio of 1.55x and an acceptance angle of +- 35/sup 0/ has been identified. Based on the preferred double ended flow-through design two alternative panel/module configurations are recommended. Parasitic thermal and pumping losses have been shown to be reducible to acceptable levels, and two passive approaches to the problem of ensuring stagnation survival have been identified.

  15. Distributed Solar Incentive Programs: Recent Experience and Best Practices for Design and Implementation

    SciTech Connect

    Bird, L.; Reger, A.; Heeter, J.

    2012-12-01

    Based on lessons from recent program experience, this report explores best practices for designing and implementing incentives for small and mid-sized residential and commercial distributed solar energy projects. The findings of this paper are relevant to both new incentive programs as well as those undergoing modifications. The report covers factors to consider in setting and modifying incentive levels over time, differentiating incentives to encourage various market segments, administrative issues such as providing equitable access to incentives and customer protection. It also explores how incentive programs can be designed to respond to changing market conditions while attempting to provide a longer-term and stable environment for the solar industry. The findings are based on interviews with program administrators, regulators, and industry representatives as well as data from numerous incentive programs nationally, particularly the largest and longest-running programs. These best practices consider the perspectives of various stakeholders and the broad objectives of reducing solar costs, encouraging long-term market viability, minimizing ratepayer costs, and protecting consumers.

  16. GEOTHERMAL / SOLAR HYBRID DESIGNS: USE OF GEOTHERMAL ENERGY FOR CSP FEEDWATER HEATING

    SciTech Connect

    Craig Turchi; Guangdong Zhu; Michael Wagner; Tom Williams; Dan Wendt

    2014-10-01

    This paper examines a hybrid geothermal / solar thermal plant design that uses geothermal energy to provide feedwater heating in a conventional steam-Rankine power cycle deployed by a concentrating solar power (CSP) plant. The geothermal energy represents slightly over 10% of the total thermal input to the hybrid plant. The geothermal energy allows power output from the hybrid plant to increase by about 8% relative to a stand-alone CSP plant with the same solar-thermal input. Geothermal energy is converted to electricity at an efficiency of 1.7 to 2.5 times greater than would occur in a stand-alone, binary-cycle geothermal plant using the same geothermal resource. While the design exhibits a clear advantage during hybrid plant operation, the annual advantage of the hybrid versus two stand-alone power plants depends on the total annual operating hours of the hybrid plant. The annual results in this draft paper are preliminary, and further results are expected prior to submission of a final paper.

  17. The absorption chiller in large scale solar pond cooling design with condenser heat rejection in the upper convecting zone

    SciTech Connect

    Tsilingiris, P.T. )

    1992-07-01

    The possibility of using solar ponds as low-cost solar collectors combined with commercial absorption chillers in large scale solar cooling design is investigated. The analysis is based on the combination of a steady-state solar pond mathematical model with the operational characteristics of a commercial absorption chiller, assuming condenser heat rejection in the upper convecting zone (U.C.Z.). The numerical solution of the nonlinear equations involved leads to results which relate the chiller capacity with pond design and environmental parameters, which are also employed for the investigation of the optimum pond size for a minimum capital cost. The derived cost per cooling kW for a 350 kW chiller ranges from about 300 to 500 $/kW cooling. This is almost an order of magnitude lower than using a solar collector field of evacuated tube type.

  18. Conceptual design of a solar cogeneration facility at Pioneer Mill Co. , Ltd

    SciTech Connect

    Not Available

    1981-04-01

    Results are reported of a conceptual design study of the retrofit of a solar central receiver system to an existing cogeneration facility at a Hawaii raw sugar factory. Background information on the site, the existing facility, and the project organization is given. Then the results are presented o the work to select the site specific configuration, including the working fluid, receiver concept, heliostat field site, and the determination of the solar facility size and of the role of thermal storage. The system selected would use water-steam as its working fluid in a twin-cavity receiver collecting sunlight from 41,420 m/sup 2/ of heliostat mirrors. The lates version of the system specification is appended, as are descriptions of work to measure site insolation and a site insolation mathematical model and interface data for the local utility. (LEW)

  19. New Multijunction Design Leads to Ultra-Efficient Solar Cell; Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

    SciTech Connect

    2015-09-01

    NREL has demonstrated a 45.7% conversion efficiency for a four-junction solar cell at 234 suns concentration. This achievement represents one of the highest photovoltaic research cell efficiencies ever achieved across all types of solar cells. NREL's new solar cell, which is designed for operation in a concentrator photovoltaic (CPV) system where it can receive more than 1,000 suns of concentrated sunlight, greatly improves earlier designs by adding an additional high quality absorber layer to achieve an ultra-high efficiency.

  20. SOLERAS - Solar Energy Water Desalination Project: Chicago Bridge and Iron Company. System design final report. Volume 1. Design report

    SciTech Connect

    Not Available

    1986-01-01

    Chicago Bridge and Iron Company (CBI), based on a demonstrated breakthrough in freeze desalination is proposing an indirect bulk freeze desalination process for seawater that is uniquely integrated with a stand alone solar cogeneration power plant. Working under SOLERAS auspices, CBI and Foster Miller Associates (FMA) have designed an integrated power system consisting of modular parabolic dish point focus solar energy collection, molten salt thermal energy storage, and a conventional steam turbine. The shaft power provides electrical energy needs via a generator and vapor compression energy needs via compressors. The vapor compression and turbine exhaust heat provide the refrigeration required for the unique freeze desalination process. Efficient energy utilization is achieved by using high grade heat to produce compression refrigeration. The flexibility of this system in making use of available energy and certain inherent advantages of the freeze desalination process make it very attractive. The desalination process includes seawater precooling and freezing, ice separation, washing, and melting to produce fresh water. Brine concentrate is rejected back to the sea after heat exchange with feed seawater.

  1. InGaN-based thin film solar cells: Epitaxy, structural design, and photovoltaic properties

    SciTech Connect

    Sang, Liwen; Liao, Meiyong; Koide, Yasuo; Sumiya, Masatomo

    2015-03-14

    In{sub x}Ga{sub 1−x}N, with the tunable direct bandgaps from ultraviolet to near infrared region, offers a promising candidate for the high-efficiency next-generation thin-film photovoltaic applications. Although the adoption of thick InGaN film as the active region is desirable to obtain efficient light absorption and carrier collection compared to InGaN/GaN quantum wells structure, the understanding on the effect from structural design is still unclear due to the poor-quality InGaN films with thickness and difficulty of p-type doping. In this paper, we comprehensively investigate the effects from film epitaxy, doping, and device structural design on the performances of the InGaN-based solar cells. The high-quality InGaN thick film is obtained on AlN/sapphire template, and p-In{sub 0.08}Ga{sub 0.92}N is achieved with a high hole concentration of more than 10{sup 18 }cm{sup −3}. The dependence of the photovoltaic performances on different structures, such as active regions and p-type regions is analyzed with respect to the carrier transport mechanism in the dark and under illumination. The strategy of improving the p-i interface by using a super-thin AlN interlayer is provided, which successfully enhances the performance of the solar cells.

  2. Conceptual design of the solar repowering system for West Texas Utilities Company Paint Creek Power Station Unit No. 4

    SciTech Connect

    Not Available

    1980-07-15

    A conceptual design of a sodium-cooled, solar, central-receiver repowering system for West Texas Utilities' Paint Creek Unit 4 was prepared, solely under funds provided by West Texas Utilities (WTU), the Energy Systems Group (ESG) of Rockwell International, and four other support groups. A central-receiver repowering system is one in which a tower, surrounded by a large field of mirrors, is placed adjacent to an existing electric power plant. A receiver, located on top of the tower, absorbs solar energy reflected onto it by the mirrors and converts this solar energy to heat energy. The heat energy is transported by the liquid sodium to a set of sodium-to-steam steam generators. The steam generators produce steam at the same temperature and pressure as that produced by the fossil boiler in the existing plant. When solar energy is available, steam is produced by the solar part of the plant, thus displacing steam from the fossil boiler, and reducing the consumption of fossil fuel while maintaining the original plant output. A means for storing the solar energy is usually provided, so that some energy obtained from the solar source can be used to displace natural gas or oil fuels when the sun is not shining. This volume presents an executive summary of the conceptual design, performance, economics, development plans, and site owner's assessment. (WHK)

  3. Optical design of a high radiative flux solar furnace for Mexico

    SciTech Connect

    Riveros-Rosas, D.; Perez-Rabago, C.A.; Arancibia-Bulnes, C.A.; Jaramillo, O.A.; Estrada, C.A.; Sanchez-Gonzalez, M.

    2010-05-15

    In the present work, the optical design of a new high radiative flux solar furnace is described. Several optical configurations for the concentrator of the system have been considered. Ray tracing simulations were carried out in order to determine the concentrated radiative flux distributions in the focal zone of the system, for comparing the different proposals. The best configuration was chosen in terms of maximum peak concentration, but also in terms of economical and other practical considerations. It consists of an arrangement of 409 first surface spherical facets with hexagonal shape, mounted on a spherical frame. The individual orientation of the facets is corrected in order to compensate for aberrations. The design considers an intercepted power of 30 kW and a target peak concentration above 10,000 suns. The effect of optical errors was also considered in the simulations. (author)

  4. A solar thermal cooling and heating system for a building: Experimental and model based performance analysis and design

    SciTech Connect

    Qu, Ming; Yin, Hongxi; Archer, David H.

    2010-02-15

    A solar thermal cooling and heating system at Carnegie Mellon University was studied through its design, installation, modeling, and evaluation to deal with the question of how solar energy might most effectively be used in supplying energy for the operation of a building. This solar cooling and heating system incorporates 52 m{sup 2} of linear parabolic trough solar collectors; a 16 kW double effect, water-lithium bromide (LiBr) absorption chiller, and a heat recovery heat exchanger with their circulation pumps and control valves. It generates chilled and heated water, dependent on the season, for space cooling and heating. This system is the smallest high temperature solar cooling system in the world. Till now, only this system of the kind has been successfully operated for more than one year. Performance of the system has been tested and the measured data were used to verify system performance models developed in the TRaNsient SYstem Simulation program (TRNSYS). On the basis of the installed solar system, base case performance models were programmed; and then they were modified and extended to investigate measures for improving system performance. The measures included changes in the area and orientation of the solar collectors, the inclusion of thermal storage in the system, changes in the pipe diameter and length, and various system operational control strategies. It was found that this solar thermal system could potentially supply 39% of cooling and 20% of heating energy for this building space in Pittsburgh, PA, if it included a properly sized storage tank and short, low diameter connecting pipes. Guidelines for the design and operation of an efficient and effective solar cooling and heating system for a given building space have been provided. (author)

  5. T-663: Cisco Content Services Gateway ICMP Processing Flaw Lets Remote Users Deny Service

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Cisco Content Services Gateway: Second Generation provides intelligent network capabilities such as flexible policy management and billing based on deep-packet inspection, as well as subscriber and application awareness capabilities that enable mobile operators to quickly and easily offer value-added, differentiated services over their mobile data networks. A DoS vulnerability exists in the Cisco Content Services Gateway: Second Generation could allow an unauthenticated attacker to cause a device reload by sending crafted ICMP messages to the affected device. Note: The Cisco Gateway GPRS Support Node (GGSN), the Cisco Mobile Wireless Home Agent (HA), the Cisco Wireless Security Gateway (WSG), the Cisco Broadband Wireless Gateway and Cisco IP Transfer Point (ITP), and the Cisco Long Term Evolution (LTE) Gateway are not affected. This vulnerability is documented in Cisco bug ID CSCtl79577 ( registered customers only) and has been assigned CVE ID CVE-2011-2064.

  6. Novel Solar Energy Conversion Materials by Design of Mn(II) Oxides

    SciTech Connect

    Lany, S.; Peng, H.; Ndione, P.; Zakutayev, A.; Ginley, D. S.

    2013-01-01

    Solar energy conversion materials need to fulfill simultaneously a number of requirements in regard of their band-structure, optical properties, carrier transport, and doping. Despite their desirable chemical properties, e.g., for photo-electrocatalysis, transition-metal oxides usually do not have desirable semiconducting properties. Instead, oxides with open cation d-shells are typically Mott or charge-transfer insulators with notoriously poor transport properties, resulting from large effective electron/hole masses or from carrier self-trapping. Based on the notion that the electronic structure features (p-d interaction) supporting the p-type conductivity in d10 oxides like Cu2O and CuAlO2 occurs in a similar fashion also in the d5 (high-spin) oxides, we recently studied theoretically the band-structure and transport properties of the prototypical binary d5 oxides MnO and Fe2O3 [PRB 85, 201202(R)]. We found that MnO tends to self-trap holes by forming Mn+III, whereas Fe2O3 self-traps electrons by forming Fe+II. However, the self-trapping of holes is suppressed by when Mn is tetrahedrally coordinated, which suggests specific routes to design novel solar conversion materials by considering ternary Mn(II) oxides or oxide alloys. We are presenting theory, synthesis, and initial characterization for these novel energy materials.

  7. Design of epitaxial CdTe solar cells on InSb substrates

    DOE PAGES [OSTI]

    Song, Tao; Kanevce, Ana; Sites, James R.

    2015-11-01

    Epitaxial CdTe has been shown by others to have a radiative recombination rate approaching unity, high carrier concentration, and low defect density. It has, therefore, become an attractive candidate for high-efficiency solar cells, perhaps becoming competitive with GaAs. The choice of substrate is a key design feature for epitaxial CdTe solar cells, and several possibilities (CdTe, Si, GaAs, and InSb) have been investigated by others. All have challenges, and these have generally been addressed through the addition of intermediate layers between the substrate and CdTe absorber. InSb is an attractive substrate choice for CdTe devices, because it has a closemore » lattice match with CdTe, it has low resistivity, and it is easy to contact. However, the valence-band alignment between InSb and p-type CdTe, which can both impede hole current and enhance forward electron current, is not favorable. Three strategies to address the band-offset problem are investigated by numerical simulation: heavy doping of the back part of the CdTe layer, incorporation of an intermediate CdMgTe or CdZnTe layer, and the formation of an InSb tunnel junction. Lastly, wach of these strategies is predicted to be helpful for higher cell performance, but a combination of the first two should be most effective.« less

  8. Design of epitaxial CdTe solar cells on InSb substrates

    SciTech Connect

    Song, Tao; Kanevce, Ana; Sites, James R.

    2015-11-01

    Epitaxial CdTe has been shown by others to have a radiative recombination rate approaching unity, high carrier concentration, and low defect density. It has, therefore, become an attractive candidate for high-efficiency solar cells, perhaps becoming competitive with GaAs. The choice of substrate is a key design feature for epitaxial CdTe solar cells, and several possibilities (CdTe, Si, GaAs, and InSb) have been investigated by others. All have challenges, and these have generally been addressed through the addition of intermediate layers between the substrate and CdTe absorber. InSb is an attractive substrate choice for CdTe devices, because it has a close lattice match with CdTe, it has low resistivity, and it is easy to contact. However, the valence-band alignment between InSb and p-type CdTe, which can both impede hole current and enhance forward electron current, is not favorable. Three strategies to address the band-offset problem are investigated by numerical simulation: heavy doping of the back part of the CdTe layer, incorporation of an intermediate CdMgTe or CdZnTe layer, and the formation of an InSb tunnel junction. Lastly, wach of these strategies is predicted to be helpful for higher cell performance, but a combination of the first two should be most effective.

  9. Design, construction, and startup of a concentrating photovoltaic solar energy system in Hawaii: Phase II. Final report

    SciTech Connect

    Spencer, R.; Harper, R.; Maberry, G.; Bedard, R.; Rafinejad, D.

    1982-10-01

    Acurex Corporation has designed, constructed, and is now operating a 35-kWp concentrating photovoltaic solar system located at the G.N. Wilcox Memorial Hospital in Lihue, Kauai, Hawaii. The facility consists of 446 m/sup 2/ (4800 ft/sup 2/) of parabolic trough photovoltaic collectors, an electrical power generation system which converts the direct current field output into grid-compatible alternating current power, and a thermal power subsystem for heating the hospital potable water. This report summarizes the design, construction, startup, and performance of this solar facility.

  10. Passive solar heating and natural cooling of an earth-integrated design

    SciTech Connect

    Barnes, P.R.; Shapira, H.B.

    1980-01-01

    The Joint Institute for Heavy Ion Research is being designed with innovative features that will greatly reduce its energy consumption for heating, cooling, and lighting. A reference design has been studied and the effects of extending the overhang during summer and fall, varying glazing area, employing RIB, and reducing internal heat by natural lighting have been considered. The use of RIB and the extendable overhang increases the optimum window glazing area and the solar heating fraction. A mass-storage wall which will likely be included in the final design has also been considered. A figure of merit for commercial buildings is the total annual energy consumption per unit area of floor space. A highly efficient office building in the Oak Ridge area typically uses 120 to 160 kWhr/m/sup 2/. The Joint Institute reference design with natural lighting, an annual average heat pump coefficient of performance (COP) equal to 1.8, RIB, and the extendable overhang uses 71 kWhr/m/sup 2/. This figure was determined from NBSLD simulations corrected for the saving from RIB. The internal heat energy from lighting and equipment used in the simulation was 1653 kWhrs/month (high natural lighting case) which is much lower than conventional office buildings. This value was adopted because only a portion of the building will be used as office space and efforts will be made to keep internal heat generation low. The mass-storage wall and ambient air cooling will reduce energy consumption still further. The combined savings of the innovative features in the Joint Institute building are expected to result in a very energy efficient design. The building will be instrumented to monitor its performance and the measured data will provide a means of evaluating the energy-saving features. The efficiency of the design will be experimentally verified over the next several years.

  11. Gateway:Amrica Latina/Aprender ms sobre las ERNC/Construccin...

    OpenEI (Open Energy Information) [EERE & EIA]

    Gateway:Amrica LatinaAprender ms sobre las ERNCConstruccin y MontajeEolica Jump to: navigation, search Construction of the foundation Fuente: Vestas Idioma: Ingls How...

  12. V-153: Symantec Brightmail Gateway Input Validation Flaw Permits Cross-Site Scripting Attacks

    Energy.gov [DOE]

    Symantec’s Brightmail Gateway management console is susceptible to stored cross-site scripting (XSS) issues found in some of the administrative interface pages.

  13. U-225: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities

    Energy.gov [DOE]

    Two vulnerabilities in Citrix Access Gateway Plug-in for Windows can be exploited by malicious people to compromise a user's system.

  14. Software/firmware design specification for 10-MWe solar-thermal central-receiver pilot plant

    SciTech Connect

    Ladewig, T.D.

    1981-03-01

    The software and firmware employed for the operation of the Barstow Solar Pilot Plant are completely described. The systems allow operator control of up to 2048 heliostats, and include the capability of operator-commanded control, graphic displays, status displays, alarm generation, system redundancy, and interfaces to the Operational Control System, the Data Acquisition System, and the Beam Characterization System. The requirements are decomposed into eleven software modules for execution in the Heliostat Array Controller computer, one firmware module for execution in the Heliostat Field Controller microprocessor, and one firmware module for execution in the Heliostat Controller microprocessor. The design of the modules to satisfy requirements, the interfaces between the computers, the software system structure, and the computers in which the software and firmware will execute are detailed. The testing sequence for validation of the software/firmware is described. (LEW)

  15. Solar-powered electrodialysis. Part 2. Design of a solar-powered, electrodialysis system for desalting remote, brackish water sources. Final report

    SciTech Connect

    Lundstrom, J.E.; Socha, M.M.; Lynch, J.D.

    1983-04-01

    The critical components in the design of a solar-powered, electrodialysis (SPED) plant have been evaluated and technology developed to combine ED equipment with a photovoltaic (PV) array. The plant design developed in Part II is simplified from the Part I design in three areas. First, the system uses a flat-panel PV aray rather than PV concentrators. Second, the system voltage is maintained at the voltage corresponding to the peak power output of the array which is essentially independent of the level of solar insolation. The third simplification is in the flow diagram for the plant where the number of pumps and variable flow valves has been reduced to two of each. The proposed system is expected to provide a reliable supply of fresh water from a brackish water source with minimum maintenance. In certain applications where grid power is unavailable and fuel costs exceed $.40 per liter, the solar-powered plant is expected to provide lower cost water today.

  16. Cost, Design, and Performance of Solar Hot Water in Cold-Climate Homes

    SciTech Connect

    2006-05-03

    This paper examines long-term performance of two solar hot water heating systems in the northern climate zone.

  17. Conceptual design of a solar cogeneration facility industrial process heat. Final report, September 30, 1980-August 14, 1981

    SciTech Connect

    Joy, P.; Brzeczek, M.; Seilestad, H.; Silverman, C.; Yenetchi, G.

    1981-07-01

    The cogeneration facility systems specification is presented which defines the characteristics, and design and environmental requirements for the facility and the performance, characteristics and economic data for the solar additions as well as certain design data for the existing facility. Climatological data are presented for the site. A copy of the Pacific Gas and Electric Draft Power Sales Agreement is included. Collector operating and safety procedures are given.

  18. T-701: Citrix Access Gateway Enterprise Edition Input Validation Flaw in Logon Portal Permits Cross-Site Scripting Attacks

    Energy.gov [DOE]

    Citrix Access Gateway Enterprise Edition Input Validation Flaw in Logon Portal Permits Cross-Site Scripting Attacks.

  19. Solar Decathlon

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

    U.S. Department of Energy Solar Decathlon Sara Farrar-Nagy National Renewable Energy Laboratory sara.farrar-nagy@nrel.gov, 303-384-7514 April 3, 2013 Solar Decathlon 2009 Solar Decathlon 2011 Solar Decathlon 2013 & XPO Washington, D.C. Washington, D.C. Irvine, California 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: How to provide workforce training, improve building science instruction, foster innovation in whole-building design, and educate

  20. Reflector Technology Development and System Design for Concentrating Solar Power Technologies

    SciTech Connect

    Adam Schaut Philip Smith

    2011-12-30

    performance. The target criteria for the concept development was to achieve a solar field cost savings of 25%-50% thereby meeting or exceeding the DOE solar field cost savings target of $350/m2. After evaluating various structural design approaches, Alcoa down-selected to a monocoque, dubbed Wing Box, design that utilizes the reflective surface as a structural, load carrying member. The cost and performance potential of the Wing Box concept was developed via initial finite element analysis (FEA) and cost modeling. The structural members were sized through material utilization modeling when subjected to representative loading conditions including wind loading. Cost modeling was utilized to refine potential manufacturing techniques that could be employed to manufacture the structural members. Alcoa concluded that an aluminum intensive collector design can achieve significant cost savings without sacrificing performance. Based on the cost saving potential of this Concept Feasibility study, Alcoa recommended further validation of this CSP approach through the execution of Phase II: Design and Prototype Development. Alcoa Phase II objective was to provide the DOE with a validated CSP trough design that demonstrates significant overall system cost savings without sacrificing performance. Phase II consisted of three major tasks; Detail System Design, Prototype Build, and System Validation. Additionally, the reflector surface development that began in Phase I was continued in Phase II. After further development work, Alcoa was unable to develop a reflective technology that demonstrated significant performance or cost benefits compared to commercially available CSP reflective products. After considering other commercially available reflective surfaces, Alcoa selected Alano's MIRO-SUN product for use on the full scale prototype. Although MIRO-SUN has a lower specular reflectivity compared to other options, its durability in terms of handling, cleaning, and long-term reflectivity was

  1. Your Solar Home

    Office of Energy Efficiency and Renewable Energy (EERE)

    Solar Schoolhouse Education supplement for the Sacramento Bee to introduce solar to elementary school children and introduce the design and AD contest for local students.

  2. The design, construction, and monitoring of photovoltaic power system and solar thermal system on the Georgia Institute of Technology Aquatic Center. Volume 1

    SciTech Connect

    Long, R.C.

    1996-12-31

    This is a report on the feasibility study, design, and construction of a PV and solar thermal system for the Georgia Tech Aquatic Center. The topics of the report include a discussion of site selection and system selection, funding, design alternatives, PV module selection, final design, and project costs. Included are appendices describing the solar thermal system, the SAC entrance canopy PV mockup, and the PV feasibility study.

  3. Federal and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed to Utilize Them

    SciTech Connect

    Mendelsohn, M.; Kreycik, C.

    2012-04-01

    Utility-scale solar projects have grown rapidly in number and size over the last few years, driven in part by strong renewable portfolio standards (RPS) and federal incentives designed to stimulate investment in renewable energy technologies. This report provides an overview of such policies, as well as the project financial structures they enable, based on industry literature, publicly available data, and questionnaires conducted by the National Renewable Energy Laboratory (NREL).

  4. Design, development and testing of a solar-powered multi-family residential size prototype turbocompressor heat pump

    SciTech Connect

    None

    1981-03-01

    A program described to design, fabricate, and conduct preliminary testing of a prototype solar-powered Rankine cycle turbocompressor heat pump module for a multi-family residential building is presented. A solar system designed to use the turbocompressor heat pump module including all of the subsystems required and the various system operating modes is described in Section I. Section II includes the preliminary design analyses conducted to select the heat pump module components and operating features, working fluid, configuration, size and performance goals, and estimated performance levels in the cooling and heating modes. Section III provides a detailed description of the other subsystems and components required for a complete solar installation. Using realistic performance and cost characteristics for all subsystems, the seasonal performance of the UTC heat pump is described in various US locations. In addition, the estimated energy savings and an assessment of the economic viability of the solar system is presented in Section III. The detailed design of the heat pump module and the arrangement of components and controls selected to conduct the laboratory performance tests are described in Section IV. Section V provides a description of the special laboratory test facility, including the subsystems to simulate the collectors and storage tanks for building load and ambient conditions and the instrumentation, monitoring, and data acquisition equipment. The test results and sample computer analyses and comparisons with predicted performance levels are presented in Section VI. Various appendices provide supplementary and background information concerning working fluid selection (A), configuration selection (B), capacity control concepts (C), building models (D), computer programs used to determine component and system performance and total system economics (E), and weather data (F).

  5. The design of future central receiver power plants based on lessons learned from the Solar One Pilot Plant

    SciTech Connect

    Kolb, G.J.

    1991-01-01

    The 10-MW{sub e} Solar One Pilot Plant was the world's largest solar central receiver power plant. During its power production years it delivered over 37,000 MWhrs (net) to the utility grid. In this type of electric power generating plant, large sun-tracking mirrors called heliostats reflect and concentrate sunlight onto a receiver mounted on top a of a tower. The receiver transforms the solar energy into thermal energy that heats water, turning it into superheated steam that drives a turbine to generate electricity. The Solar One Pilot Plant successfully demonstrated the feasibility of generating electricity with a solar central receiver power plant. During the initial 2 years the plant was tested and 4 years the plant was operated as a power plant, a great deal of data was collected relating to the efficiency and reliability of the plant's various systems. This paper summarizes these statistics and compares them to goals developed by the US Department of Energy. Based on this comparison, improvements in the design and operation of future central receiver plants are recommended. Research at Sandia National Laboratories and the US utility industry suggests that the next generation of central receiver power plants will use a molten salt heat transfer fluid rather than water/steam. Sandia has recently completed the development of the hardware needed in a molten salt power plant. Use of this new technology is expected to solve many of the performance problems encountered at Solar One. Projections for the energy costs from these future central receiver plants are also presented. For reference, these projections are compared to the current energy costs from the SEGS parabolic trough plants now operating in Southern California.

  6. New GATEWAY Report on Tunable Lighting in a Senior-Care Facility |

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

    Department of Energy GATEWAY Report on Tunable Lighting in a Senior-Care Facility New GATEWAY Report on Tunable Lighting in a Senior-Care Facility September 15, 2016 - 4:52pm Addthis The U.S. Department of Energy's GATEWAY program has released a new report on a pilot installation of tunable-white LED systems at a senior-care facility in Sacramento, CA. The installation took place at the ACC Care Center and was conducted by the Sacramento Municipal Utility District (SMUD), which invited

  7. International Clean Energy Analysis Gateway: Assisting Developing Countries with Clean Energy Deployment (Fact Sheet)

    SciTech Connect

    Not Available

    2010-01-01

    The International Clean Energy Analysis Gateway seeks to enhance developing country access to energy efficiency and renewable energy analysis tools, databases, methods, and other technical resources in a dynamic user interaction environment. In addition to providing information on available tools, the gateway also is a platform for Web seminars, online training, peer networks, and expert assistance. The gateway is sponsored by the U.S. Department of Energy (DOE) and the United Nations Industrial Development Organization (UNIDO) and managed by the National Renewable Energy Laboratory (NREL). Further cooperation is desired with organizations that can help expand the information presented in the portal and assist with outreach and training.

  8. EERE Success Story-Alaska Gateway School District Adopts Combined Heat

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

    and Power | Department of Energy Alaska Gateway School District Adopts Combined Heat and Power EERE Success Story-Alaska Gateway School District Adopts Combined Heat and Power May 7, 2013 - 12:00am Addthis In Tok, Alaska, the economic impact of high fuel prices was crippling the community's economy€, especially for the Alaska Gateway School District, with staff laid off and double duties assigned to many. To help offset high energy costs, the school district decided to replace its

  9. Webinar: 20K Hour GATEWAY Testing Results for I-35W Bridge | Department of

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

    Energy 20K Hour GATEWAY Testing Results for I-35W Bridge Webinar: 20K Hour GATEWAY Testing Results for I-35W Bridge The U.S. Department of Energy has released a GATEWAY Demonstration report on the longer-term performance of an LED lighting system that was installed on the I-35W Bridge in Minneapolis in September 2008 and represents one of the country's oldest continuously operated exterior LED lighting installations. Prior to installation, two of the LED luminaires were tested, along with a

  10. Design of a GaAs/Ge solar array for unmanned aerial vehicles

    SciTech Connect

    Scheiman, D.A.; Colozza, A.J.; Brinker, D.J.; Bents, D.J.

    1994-12-31

    Unmanned Aerial Vehicles (UAV) are being proposed for many applications including surveillance, mapping and atmospheric studies. These applications require a lightweight, low speed, medium to long duration airplane. Due to the weight, speed, and altitude constraints imposed on such aircraft, solar array generated electric power is a viable alternative to air-breathing engines. Development of such aircraft is currently being funded under the Environmental Research Aircraft and Sensor Technology (ERAST) program. NASA Lewis Research Center (LeRC) is currently building a Solar Electric Airplane to demonstrate UAV technology. This aircraft utilizes high efficiency Applied Solar Energy Corporation (ASEC) GaAs/Ge space solar cells. The cells have been provided by the Air Force through the ManTech Office. Expected completion of the plane is early 1995, with the airplane currently undergoing flight testing using battery power.

  11. Solar Cell Design for Manufacturing: Final Report, October 2005 - September 2007

    SciTech Connect

    Rand, J. A.

    2008-05-01

    GE Energy made progress in improving its solar cell process, developing its metal wrap-through process, and completing highly accelerated lifetime testing on elements of its roof-integrated module.

  12. Design of a GaAs/Ge solar array for unmanned aerial vehicles

    SciTech Connect

    Scheiman, D.A.; Brinker, D.J.; Bents, D.J.; Colozza, A.J.

    1995-03-01

    Unmanned Aerial Vehicles (UAV) are being proposed for many applications including surveillance, mapping and atmospheric studies. These applications require a lightweight, low speed, medium to long duration airplane. Due to the weight, speed, and altitude constraints imposed on such aircraft, solar array generated electric power is a viable alternative to air-breathing engines. Development of such aircraft is currently being funded under the Environmental Research Aircraft and Sensor Technology (ERAST) program. NASA Lewis Research Center (LeRC) is currently building a Solar Electric Airplane to demonstrate UAV technology. This aircraft utilizes high efficiency Applied Solar Energy Corporation (ASEC) GaAs/Ge space solar cells. The cells have been provided by the Air Force through the ManTech Office. Expected completion of the plane is early 1995, with the airplane currently undergoing flight testing using battery power.

  13. Numerical simulation: Toward the design of high-efficiency planar perovskite solar cells

    SciTech Connect

    Liu, Feng; Zhu, Jun E-mail: sydai@ipp.ac.cn; Wei, Junfeng; Li, Yi; Lv, Mei; Yang, Shangfeng; Zhang, Bing; Yao, Jianxi; Dai, Songyuan E-mail: sydai@ipp.ac.cn

    2014-06-23

    Organo-metal halide perovskite solar cells based on planar architecture have been reported to achieve remarkably high power conversion efficiency (PCE, >16%), rendering them highly competitive to the conventional silicon based solar cells. A thorough understanding of the role of each component in solar cells and their effects as a whole is still required for further improvement in PCE. In this work, the planar heterojunction-based perovskite solar cells were simulated with the program AMPS (analysis of microelectronic and photonic structures)-1D. Simulation results revealed a great dependence of PCE on the thickness and defect density of the perovskite layer. Meanwhile, parameters including the work function of the back contact as well as the hole mobility and acceptor density in hole transport materials were identified to significantly influence the performance of the device. Strikingly, an efficiency over 20% was obtained under the moderate simulation conditions.

  14. Wisdom Way Solar Village: Design, Construction, and Analysis of a Low Energy Community

    SciTech Connect

    Aldrich, R.

    2012-08-01

    This report describes work conducted at the Wisdom Way Solar Village (WWSV), a community of 10 high performance duplexes (20 homes) in Greenfield, MA, constructed by Rural Development, Inc. (RDI). Building America's CARB team monitored temperatures and comfort in several homes during the winter of 2009-2010, and tracked utility bill information from 13 occupied homes. Because of efficient lights, appliances, and conscientious home occupants, the energy generated by the solar electric systems exceeded the electric energy used in most homes.

  15. SJ Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: SJ Solar Place: San Jose, California Zip: 95131 Sector: Solar Product: Cell design firm for concentrated solar References: SJ Solar1 This article is a stub. You...

  16. ISI Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ISI Solar Jump to: navigation, search Name: ISI Solar Place: New City, New York Zip: 10956 Sector: Solar Product: US-based company that designs and installs solar power systems for...

  17. West African Clean Energy Gateway-Resource Assessment | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    a grid cell. It follows then that each grid cell would only have one value for solar resource, which represents the annual average solar resource (GHI, for PV analysis)...

  18. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 3. Appendices, Part 1

    SciTech Connect

    Mouradian, E. M.

    1983-12-31

    Thermal analyses for the preliminary design phase of the Receiver of the Carrizo Plains Solar Power Plant are presented. The sodium reference operating conditions (T/sub in/ = 610/sup 0/F, T/sub out/ = 1050/sup 0/F) have been considered. Included are: Nominal flux distribution on receiver panal, Energy input to tubes, Axial temperature distribution; sodium and tubes, Sodium flow distribution, Sodium pressure drop, orifice calculations, Temperature distribution in tube cut (R-0), Backface structure, and Nonuniform sodium outlet temperature. Transient conditions and panel front face heat losses are not considered. These are to be addressed in a subsequent design phase. Also to be considered later are the design conditions as variations from the nominal reference (operating) condition. An addendum, designated Appendix C, has been included describing panel heat losses, panel temperature distribution, and tube-manifold joint thermal model.

  19. DOE Publishes GATEWAY Report on LED Lighting in a Performing Arts Setting

    Energy.gov [DOE]

    The U.S. Department of Energy has released a report on a GATEWAY demonstration of LED lighting at the University of Florida's Nadine McGuire Theatre and Dance Pavilion in Gainesville. Four interior...

  20. DOE Publishes GATEWAY Report on Portland’s LED Streetlight Conversion

    Energy.gov [DOE]

    The U.S. Department of Energy has released a GATEWAY report on the experiences of the City of Portland, OR, in converting its street lighting from high-pressure sodium to LED. Such largescale...

  1. OpenEI launches new Water Power Gateway and Community Forum ...

    OpenEI (Open Energy Information) [EERE & EIA]

    OpenEI launches new Water Power Gateway and Community Forum Home > Groups > Water Power Forum Graham7781's picture Submitted by Graham7781(2017) Super contributor 28 March, 2013 -...

  2. New GATEWAY Report Monitors LED System Performance in a High-Temperature Environment

    Energy.gov [DOE]

    The U.S. Department of Energy has released a follow-up GATEWAY report on LED system performance at the Yuma (Arizona) Sector Border Patrol Area. Six LED luminaires – installed on three poles as...

  3. DOE Publishes Third GATEWAY Report on LED System Performance in a High-Temperature Environment

    Energy.gov [DOE]

    The U.S. Department of Energy's GATEWAY program has released the third report in a series documenting the performance of LED luminaires in the Yuma (Arizona) Sector Border Patrol Area, on the U.S....

  4. U-020: McAfee Web Gateway Web Access Cross Site Scripting Vulnerabilit...

    Energy.gov [DOE] (indexed site)

    McAfee Web Gateway Web Access Cross Site Scripting Vulnerability. PLATFORM: The vulnerability is reported in versions prior to 7.1.5.2. ABSTRACT: Cross-Site Scripting ...

  5. Conceptual design and techno-economic assessment of integrated solar combined cycle system with DSG technology

    SciTech Connect

    Nezammahalleh, H.; Farhadi, F.; Tanhaemami, M.

    2010-09-15

    Direct steam generation (DSG) in parabolic trough collectors causes an increase to competitiveness of solar thermal power plants (STPP) by substitution of oil with direct steam generation that results in lower investment and operating costs. In this study the integrated solar combined cycle system with DSG technology is introduced and techno-economic assessment of this plant is reported compared with two conventional cases. Three considered cases are: an integrated solar combined cycle system with DSG technology (ISCCS-DSG), a solar electric generating system (SEGS), and an integrated solar combined cycle system with HTF (heat transfer fluid) technology (ISCCS-HTF). This study shows that levelized energy cost (LEC) for the ISCCS-DSG is lower than the two other cases due to reducing O and M costs and also due to increasing the heat to electricity net efficiency of the power plant. Among the three STPPs, SEGS has the lowest CO{sub 2} emissions, but it will operate during daytime only. (author)

  6. SOLERAS - Solar Energy Water Desalination Project: Catalytic. System design final report. Volume 1. System requirement definition and system analysis

    SciTech Connect

    Not Available

    1986-01-01

    Catalytic Inc. was awarded a contract to conduct a preliminary system design and cost analysis for a brackish water desalination project to be located in Brownsville, Texas. System analyses and economic analyses were performed to define the baseline solar energy desalination system. The baseline system provides an average daily product water capacity of 6000 mT. The baseline system is optimal relative to technological risk, performance, and product water cost. Subsystems and their interfaces have been defined and product water cost projections made for commercial plants in a range of capacities. Science Applications, Inc. (SAI), subcontractor to Catalytic, had responsibility for the solar power system. This, the final report, summarizes the work performed under the Phase I effort.

  7. Theoretical comparison of multiple quantum wells and thick-layer designs in InGaN/GaN solar cells

    SciTech Connect

    Cavassilas, Nicolas; Michelini, Fabienne; Bescond, Marc

    2014-08-11

    This theoretical work analyzes the photovoltaic effect in non-polar InGaN/GaN solar cells. Our electronic transport model considers quantum behaviors related to confinement, tunneling, electron-phonon, and electron-photon scatterings. Based on this model, we compare a multiple quantum wells cell with its thick-layer counterpart. We show that the structure of multiple quantum wells is a promising design providing better compromise between photon-absorption and electronic transport. This balance is necessary since these two phenomena are shown to be antagonist in nanostructure based solar cells. In these devices, we also show that phonon absorption increases the short-circuit current, while phonon emission reduces the open-circuit voltage.

  8. A proposed design and fabrication of lenses and mirrors from a set of spherical rings that produce desired energy distributions for solar energy applications

    SciTech Connect

    Gonzalez-Garcia, Jorge; Vazquez-Montiel, Sergio; Santiago-Alvarado, Agustin; Cordero-Davila, Alberto; Castro-Gonzalez, Graciela

    2009-12-15

    The amount of energy contained in the solar aureole affects the performance of solar systems. Solar optical systems are, therefore, dependent on the characteristics of the shape of the sun in a specific geographical location. For this reason, the present study proposes the design of solid lenses and mirrors modelled from a set of concentric spherical rings that give a desired distribution of energy in the focal plane. One hundred spherical rings, whose optimum curvature radius values were calculated by Genetic Algorithms, were employed in the modelling process. The study also proposes a design of a petal tool to polish lens and mirror surfaces. (author)

  9. Solid State Lighting: GATEWAY and CALiPER | Department of Energy

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

    Solid State Lighting: GATEWAY and CALiPER Solid State Lighting: GATEWAY and CALiPER Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review emrgtech08_ledbetter_040313.pdf (1.67 MB) More Documents & Publications FEMP Outdoor Solid-State Lighting Intiative: Resources for Outdoor SSL Applications Emerging Lighting Technology Guiding Market Introduction of High-Performance SSL Products

  10. Global Science Gateway Opened | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information Opened Back to the OSTI News Listing for 2007 The U.S. Department of Energy (DOE) and the British Library, along with eight other participating countries, today opened an online global gateway to science information from 15 national portals. The gateway, WorldWideScience.org (www.worldwidescience.org), gives citizens, researchers and anyone interested in science the capability to search science portals not easily accessible through popular search

  11. Design and operation of a solar fired biomass flash pyrolysis reactor

    SciTech Connect

    Antal, M.J.; Hofmann, L.; Brown, C.T.; Steenblick, R.

    1981-01-01

    The results of continuing research on the radiant flash pyrolysis of biomass as a source of fluid fuels, industrial feedstocks, and chemicals are described. Bench-scale sources of intense, visible radiant energy were used to simulate the concentrated solar flux available at the focus of solar towers. Windowed transport reactors were developed, which act as cavity receivers for the focused radiant energy and provide a means for direct use of the radiation to rapidly pyrolyze the entering biomass. Detailed result of both bench scale experiments and experiments using the Georgia Tech 400 kW (thermal) solar furnace are presented. These results suggest the use of concentrated radiant energy as a selective means for the production of either a hydrocarbon-rich synthesis gas or sugar related syrups from biomass by flash pyrolysis. Sawdust, ground corncobs, and powdered microcrystal cellulose were the biomass feedstocks in this work.

  12. Turning Bacteria into Fuel: Cyanobacteria Designed for Solar-Powered Highly Efficient Production of Biofuels

    SciTech Connect

    2010-01-01

    Broad Funding Opportunity Announcement Project: ASU is engineering a type of photosynthetic bacteria that efficiently produce fatty acidsa fuel precursor for biofuels. This type of bacteria, called Synechocystis, is already good at converting solar energy and carbon dioxide (CO2) into a type of fatty acid called lauric acid. ASU has modified the organism so it continuously converts sunlight and CO2 into fatty acidsoverriding its natural tendency to use solar energy solely for cell growth and maximizing the solar-to-fuel conversion process. ASUs approach is different because most biofuels research focuses on increasing cellular biomass and not on excreting fatty acids. The project has also identified a unique way to convert the harvested lauric acid into a fuel that can be easily blended with existing transportation fuels.

  13. Device characterization for design optimization of 4 junction inverted metamorphic concentrator solar cells

    SciTech Connect

    Geisz, John F.; France, Ryan M.; Steiner, Myles A.; Friedman, Daniel J.; García, Iván

    2014-09-26

    Quantitative electroluminescence (EL) and luminescent coupling (LC) analysis, along with more conventional characterization techniques, are combined to completely characterize the subcell JV curves within a fourjunction (4J) inverted metamorphic solar cell (IMM). The 4J performance under arbitrary spectral conditions can be predicted from these subcell JV curves. The internal radiative efficiency (IRE) of each junction has been determined as a function of current density from the external radiative efficiency using optical modeling, but this required the accurate determination of the individual junction current densities during the EL measurement as affected by LC. These measurement and analysis techniques can be applied to any multijunction solar cell. The 4J IMM solar cell used to illustrate these techniques showed excellent junction quality as exhibited by high IRE and a one-sun AM1.5D efficiency of 36.3%. This device operates up to 1000 suns without limitations due to any of the three tunnel junctions.

  14. Commercialization of BNL design solar collector in India: Phase 1 report

    SciTech Connect

    Wilhelm, W.G.; Mubayi, V.

    1985-09-01

    The present market for solar thermal energy technologies in India is almost completely restricted to solar hot water and, in a smaller number, hot air systems. A few projects utilizing concentrating systems for producing steam and/or thermally generated electric power have been carried out but these are restricted to the R and D stage. Similarly, a few projects employing solar space heating have also been done in remote, mountainous areas but these are also at the R and D level. Based on interviews with knowledgeable observers, including officials of DNES/STEC, state ''nodal'' agencies responsible for implementing solar energy projects in different states, and flat plate collector/hot water systems manufacturers, it has been roughly estimated that between 90 to 95% of the hot water systems installed or under installation have been funded by government programs. This includes systems funded under Central Government programs by DNES and systems installed under State Government projects. The remaining 5 to 10% of the installations are in the private sector and are believed to be mostly small, domestic systems (100 liters per day of hot water at 60/sup 0/C).

  15. Solar-parabolic dish-Stirling-engine-system module. Task 1: Topical report, market assessment/conceptual design

    SciTech Connect

    Not Available

    1982-11-30

    The major activities reported are: a market study to identify an early market for a dish-Stirling module and assess its commercial potential; preparation of a conceptual system and subsystem design to address this market; and preparation of an early sales implementation plan. A study of the reliability of protection from the effects of walk-off, wherein the sun's image leaves the receiver if the dish is not tracking, is appended, along with an optical analysis and structural analysis. Also appended are the relationship between PURPA and solar thermal energy development and electric utility pricing rationale. (LEW)

  16. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 3. Appendices. Part 2

    SciTech Connect

    Lee, S. K.

    1983-12-31

    The auxiliary heat transport systems of the Carrisa Plains Solar Power Plant (CPSPP) comprise facilities which are used to support plant operation and provide plant safety and maintenance. The facilities are the sodium purification system, argon cover gas system, sodium receiving and filling system, sodium-water reaction product receiving system, and safety and maintenance equipment. The functions of the facilities of the auxiliary system are described. Design requirements are established based on plant operating parameters. Descriptions are given on the system which will be adequate to perform the function and satisfy the requirements. Valve and equipment lists are included in the appendix.

  17. Unified Solar

    Energy.gov [DOE]

    Unified Solar is an MIT startup that is commercializing an integrated circuit solution that eliminates most of the adverse effects caused by partial shading in photovoltaic power systems. With its patent-pending design, Unified Solar's solution is smaller, cheaper and more powerful than any competing power optimizer in the market.

  18. Solar America LLC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LLC Jump to: navigation, search Name: Solar America LLC Place: Marmora, New Jersey Zip: 8223 Sector: Solar Product: New Jersey-based company that designs and installs Solar...

  19. Advanced Solar Technologies Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    California Sector: Solar Product: California-based domestic and commercial designer and installer of solar energy equipment. References: Advanced Solar Technologies Inc1 This...

  20. High Penetration Solar Deployment Funding Opportunity

    Office of Energy Efficiency and Renewable Energy (EERE)

    Through the High Penetration Solar Deployment program, DOE is funding solar projects that are accelerating the placement of solar photovoltaic (PV) systems into existing and newly designed...

  1. Arizona Solar Tech | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tech Jump to: navigation, search Name: Arizona Solar Tech Place: Phoenix, Arizona Zip: 85040 Sector: Solar, Vehicles Product: Designs and installs solar PV systems for vehicles,...

  2. SolarPower Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Ltd Jump to: navigation, search Name: SolarPower Ltd Place: Netanya, Israel Sector: Solar Product: Israel-based designer, supplier and installer of solar energy systems....

  3. Solar production of intermediate temperature process heat. Phase I design. Final report. [For sugarcane processing plant in Hawaii

    SciTech Connect

    1980-08-01

    This report is the final effort in the Phase I design of a solar industrial process heat system for the Hilo Coast Processing Company (HCPC) in Pepeekeo, Hawaii. The facility is used to wash, grind and extract sugar from the locally grown sugarcane and it operates 24 hours a day, 305 days per year. The major steam requirements in the industrial process are for the prime movers (mill turbines) in the milling process and heat for evaporating water from the extracted juices. Bagasse (the fibrous residue of milled sugarcane) supplied 84% of the fuel requirement for steam generation in 1979, while 65,000 barrels of No. 6 industrial fuel oil made up the remaining 16%. These fuels are burned in the power plant complex which produces 825/sup 0/F, 1,250 psi superheated steam to power a turbogenerator set which, in addition to serving the factory, generates from 7 to 16 megawatts of electricity that is exported to the local utility company. Extracted steam from the turbo-generator set supplies the plant's process steam needs. The system consists of 42,420 ft./sup 2/ of parabolic trough, single axis tracking, concentrating solar collectors. The collectors will be oriented in a North-South configuration and will track East-West. A heat transfer fluid (Gulf Synfluid 4cs) will be circulated in a closed loop fashion through the solar collectors and a series of heat exchangers. The inlet and outlet fluid temperatures for the collectors are 370/sup 0/F and 450/sup 0/F respectively. It is estimated that the net useable energy delivered to the industrial process will be 7.2 x 10/sup 9/ Btu's per year. With an HCPC boiler efficiency of 78% and 6.2 x 10/sup 6/ Btu's per barrel of oil, the solar energy system will displace 1489 barrels of oil per year. (WHK)

  4. Passive solar commercial buildings: design assistance and demonstration program. Phase 1. Final report

    SciTech Connect

    1981-01-26

    The final design of the Mount Airy Public Library is given. Incremental passive design costs are discussed. Performance and economic analyses are made and the results reported. The design process is thoroughly documented. Considerations discussed are: (1) building energy needs; (2) site energy potentials, (3) matching energy needs with site energy potentials, (4) design indicators for best strategies and concepts, (5) schematic design alternatives, (6) performance testing of the alternatives, (7) design selection, and (8) design development. Weather data and Duke Power electric rates are included. (LEW)

  5. Optimal design of one-dimensional photonic crystal back reflectors for thin-film silicon solar cells

    SciTech Connect

    Chen, Peizhuan; Hou, Guofu Zhang, Jianjun Zhang, Xiaodan; Zhao, Ying

    2014-08-14

    For thin-film silicon solar cells (TFSC), a one-dimensional photonic crystal (1D PC) is a good back reflector (BR) because it increases the total internal reflection at the back surface. We used the plane-wave expansion method and the finite difference time domain (FDTD) algorithm to simulate and analyze the photonic bandgap (PBG), the reflection and the absorption properties of a 1D PC and to further explore the optimal 1D PC design for use in hydrogenated amorphous silicon (a-Si:H) solar cells. With identified refractive index contrast and period thickness, we found that the PBG and the reflection of a 1D PC are strongly influenced by the contrast in bilayer thickness. Additionally, light coupled to the top three periods of the 1D PC and was absorbed if one of the bilayers was absorptive. By decreasing the thickness contrast of the absorptive layer relative to the non-absorptive layer, an average reflectivity of 96.7% was achieved for a 1D PC alternatively stacked with a-Si:H and SiO{sub 2} in five periods. This reflectivity was superior to a distributed Bragg reflector (DBR) structure with 93.5% and an Ag film with 93.4%. n-i-p a-Si:H solar cells with an optimal 1D PC-based BR offer a higher short-circuit current density than those with a DBR-based BR or an AZO/Ag-based BR. These results provide new design rules for photonic structures in TFSC.

  6. TIS (Technology Information System): The Intelligent Gateway Processor (IGP)

    SciTech Connect

    Hampel, V.E.; Barker, R.; Berch, M.; Kawin, R.; Lann, N.; McGrogan, S.; Sharpe, N.; Winiger, G.

    1984-10-01

    The Technology Information System (TIS) is an Intelligent Gateway Processor (IGP) capable of interconnecting heterogeneous information resources at geographically distributed locations in an automated, unified, and controlled manner. It augments the capabilities of personal computers and workstations of scientists and engineers by providing a shared directory to worldwide bibliographic and numeric resources and a library of self-guided procedures by which test, data, and graphs can be downloaded, reformatted, aggregated, analyzed, and shared among users and different host machines. The TIS link capability is used routinely for transcontinental tutorials and as a proactical means for the audiovisual linking of TIS users with experts at their respective locations. The IGP universal user interface permits changes and additions of available resources while running non-stop. The TIS/IGP at th Lawrence Livermore National Laboratory (LLNL) serves as the host system for several different communities of users who develop integrated information systems for personal and shared programmatic resources. The TIS local area network utilizes a 10 Mbps Ethernet which serves as a testbed for high-technology hardware and software.

  7. Design, Operation, and Controlled-Island Operation of the U.S. Department of Energy Solar Decathlon 2013 Microgrid

    SciTech Connect

    Kurnik, C.; Butt, R. S.; Metzger, I.; Lavrova, O.; Patibandla, S.; Wagner, V.; Frankosky, M.; Wiegand, G.

    2015-04-22

    This document reports on the design and operation of a high-capacity and high-penetration-ratio microgrid, which consists of 19 photovoltaic-powered residential houses designed by collegiate teams as part of their participation in the U.S. Department of Energy Solar Decathlon 2013. The microgrid was interconnected with the local utility, and resulting net-power and power-quality events were recorded in high detail (1-minute data sampling or better). Also, a controlled-island operation test was conducted to evaluate the microgrid response to additional events such as increased loads (e.g., from electric vehicles) and bypassing of voltage regulators. This temporary ground-laid microgrid was stable under nominal and island-operation conditions; adverse weather and loads did not lead to power-quality degradation.

  8. SOLERAS - Solar Energy Water Desalination Project: Chicago Bridge and Iron Company. Final report: system design extension. Volume 2. Appendices and drawings

    SciTech Connect

    Not Available

    1985-01-01

    The report concerns the design of a solar energy powered, seawater desalination pilot plant for installation at Yanbu, Saudi Arabia, on the shore of the Red Sea. General specifications, major equipment specifications, vendor and operation and maintenance information, as well as design drawings, are presented.

  9. Passive solar space heating

    SciTech Connect

    Balcomb, J.D.

    1980-01-01

    An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

  10. Solar Policy Environment: Sacramento

    Office of Energy Efficiency and Renewable Energy (EERE)

    The City of Sacramento and the greater Sacramento region is the home of a long standing history of commitment to solar. Sacramento Solar Access seeks to further widespread adoption of solar energy by addressing current market barriers and preparing, through design guidelines and education, the infrastructure that will optimize solar production in the future.

  11. YBR Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Zip: 92037 Region: Southern CA Area Sector: Solar Product: Developing a design for a solar cell that is 50% more efficient at converting sunlight to electricity Website:...

  12. NREL: Technology Deployment - Solar Decathlon

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

    Solar Decathlon is an international competition that challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and ...

  13. New GATEWAY Report Monitors LED System Performance in a High...

    Energy Saver

    There was no measured shift in the color of the light. The Yuma site is an extreme environment: high ambient temperatures and direct solar radiation heat up the luminaires ...

  14. DOE Publishes Third GATEWAY Report on LED System Performance...

    Energy Saver

    the performance of LED luminaires in the Yuma (Arizona) Sector Border Patrol Area, on the U.S.-Mexico border, which is a high-temperature, high-solar-radiation environment. ...

  15. Design of Semiconducting Tetrahedral Mn 1 ₋ x Zn x O Alloys and Their Application to Solar Water Splitting

    DOE PAGES [OSTI]

    Peng, Haowei; Ndione, Paul F.; Ginley, David S.; Zakutayev, Andriy; Lany, Stephan

    2015-05-18

    Transition metal oxides play important roles as contact and electrode materials, but their use as active layers in solar energy conversion requires achieving semiconducting properties akin to those of conventional semiconductors like Si or GaAs. In particular, efficient bipolar carrier transport is a challenge in these materials. Based on the prediction that a tetrahedral polymorph of MnO should have such desirable semiconducting properties, and the possibility to overcome thermodynamic solubility limits by nonequilibrium thin-film growth, we exploit both structure-property and composition-structure relationships to design and realize novel wurtzite-structure Mn₁₋xZnxO alloys. At Zn compositions above x ≈ 0.3, thin films ofmore » these alloys assume the tetrahedral wurtzite structure instead of the octahedral rocksalt structure of MnO, thereby enabling semiconductor properties that are unique among transition metal oxides, i.e., a band gap within the visible spectrum, a band-transport mechanism for both electron and hole carriers, electron doping, and a band lineup suitable for solar hydrogen generation. A proof of principle is provided by initial photo-electrocatalytic device measurements, corroborating, in particular, the predicted favorable hole-transport properties of these alloys.« less

  16. Seattle, Washington: Solar in Action (Brochure), Solar America...

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

    Solar in Action The City of Seattle was designated by the U.S. Department of Energy (DOE) on March 28, 2008, as a Solar America City. Seattle began its Solar America Cities ...

  17. DOE Publishes 20K Hour Testing Results for 2008 GATEWAY Bridge Installation

    Energy Saver

    | Department of Energy K Hour Testing Results for 2008 GATEWAY Bridge Installation DOE Publishes 20K Hour Testing Results for 2008 GATEWAY Bridge Installation October 9, 2014 - 12:00pm Addthis The U.S. Department of Energy has released a report on the longer-term performance of an LED lighting system that was installed on the I-35W Bridge in Minneapolis in September 2008 and represents one of the country's oldest continuously operated exterior LED lighting installations. The report is a

  18. OpenMSI: A Science Gateway to Sort Through Bio-Imaging's Big Datasets

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

    OpenMSI: A Science Gateway to Sort Through Bio-Imaging's Big Datasets OpenMSI: A Science Gateway to Sort Through Bio-Imaging's Big Datasets August 27, 2013 Contact: Linda Vu, +1 510 495 2402, lvu@lbl.gov OpenMSINERSC.jpg This overlay of mass spectrometry images shows the spatial distribution of three different kind of lipids across a whole mouse cross-section. Lipids act as the structural components of cell membranes and are responsible for energy storage, among other things. Image credit:

  19. Impact of sub-cell internal luminescence yields on energy conversion efficiencies of tandem solar cells: A design principle

    SciTech Connect

    Zhu, Lin Kim, Changsu; Yoshita, Masahiro; Chen, Shaoqiang; Sato, Shintaroh; Mochizuki, Toshimitsu; Akiyama, Hidefumi; Kanemitsu, Yoshihiko

    2014-01-20

    To develop a realistic design principle, we calculated the maximum conversion efficiency ?{sub sc} and optimized sub-cell band-gap energies E{sub g} in double-junction tandem solar cells via a detailed-balance theory, paying particular attention to their dependence on internal luminescence quantum yields y{sub int} of the top and bottom sub-cell materials. A strong drop in the maximum ?{sub sc} occurs when y{sub int} slightly drops from 1 to 0.9, where the drop in y{sub int} of the bottom cell causes a stronger effect than that of the top cell. For low values of y{sub int}, the maximum ?{sub sc} has a simple logarithmic dependence on the geometric mean of the two sub-cells'y{sub int}.

  20. Impact of Rate Design Alternatives on Residential Solar Customer Bills. Increased Fixed Charges, Minimum Bills and Demand-based Rates

    SciTech Connect

    Bird, Lori; Davidson, Carolyn; McLaren, Joyce; Miller, John

    2015-09-01

    With rapid growth in energy efficiency and distributed generation, electric utilities are anticipating stagnant or decreasing electricity sales, particularly in the residential sector. Utilities are increasingly considering alternative rates structures that are designed to recover fixed costs from residential solar photovoltaic (PV) customers with low net electricity consumption. Proposed structures have included fixed charge increases, minimum bills, and increasingly, demand rates - for net metered customers and all customers. This study examines the electricity bill implications of various residential rate alternatives for multiple locations within the United States. For the locations analyzed, the results suggest that residential PV customers offset, on average, between 60% and 99% of their annual load. However, roughly 65% of a typical customer's electricity demand is non-coincidental with PV generation, so the typical PV customer is generally highly reliant on the grid for pooling services.

  1. Design of solar cells for use in photovoltaic/thermal collectors

    SciTech Connect

    Cox, C.H. III

    1980-01-01

    A promising design development for combined photovoltaic/thermal (PV/T) collectors is one in which the photovoltaic cell is both the conversion device for electrical energy and the absorber of thermal energy. To accomplish this, the PV cell design is modified to use the approximately 25 percent of the air mass 1 spectrum at lambda > 1.1 ..mu..m that is currently rejected by the cell. The parameters investigated are: cell back metallization, back surface field, texture etching and anti-reflective coating. A model indicating the increase in absorptance as a function of these parameters is presented, together with the results of experimental measurements. Discussion closes with the presentation of a PV/T collector design that incorporates the improved cells, has 10 percent greater thermal output than current PV/T collectors, and exhibits no degradation in electrical output.

  2. Solar Sales Tax Exemption

    Energy.gov [DOE]

    For both residential and non-residential systems, the exemption applies to solar-energy systems that utilize solar radiation to produce energy designed to provide heating, cooling, hot water and/or...

  3. Solar & Wind Equipment Certification

    Energy.gov [DOE]

    With the exception of solar energy systems designed or installed by the final owner, systems sold or installed in Arizona must be installed by licensed solar contractors and must comply with any...

  4. Solar Central Receiver Hybrid Power Systems sodium-cooled receiver concept. Final report. Volume II, Book 2. Conceptual design, Sections 5 and 6

    SciTech Connect

    1980-01-01

    The overall, long-term objective of the Solar Central Receiver Hybrid Power System program is to identify, characterize, and ultimately demonstrate the viability and cost effectiveness of solar/fossil, steam Rankine cycle, hybrid power systems that: (1) consist of a combined solar central receiver energy source and a nonsolar energy source at a single, common site, (2) may operate in the base, intermediate, and peaking capacity modes, (3) produce the rated output independent of variations in solar insolation, (4) provide a significant savings (50% or more) in fuel consumption, and (5) produce power at the minimum possible cost in mills/kWh. It is essential that these hybrid concepts be technically feasible and economically competitive with other systems in the near to mid-term time period (1985-1990) on a commercial scale. The program objective for Phase I is to identify and conceptually characterize solar/fossil steam Rankine cycle, commercial-scale, power plant systems that are economically viable and technically feasible. This volume contains the detailed conceptual design and cost/performance estimates and an assessment of the commercial scale solar central receiver hybrid power system. (WHK)

  5. GATEWAY Demonstrations: Trial Demonstration of Area Lighting Retrofit, Yuma Border Patrol, Yuma, Arizona

    SciTech Connect

    Wilkerson, A. M.; McCullough, J. J.

    2014-12-31

    Along the Yuma Sector Border Patrol Area in Yuma, Arizona, the GATEWAY program conducted a trial demonstration in which the incumbent quartz metal halide area lighting was replaced with LED at three pole locations at the Yuma Sector Border Patrol Area in Yuma, Arizona. The retrofit was documented to better understand LED technology performance in high-temperature environments.

  6. Life Cycle Assessment of a Parabolic Trough Concentrating Solar Power Plant and Impacts of Key Design Alternatives: Preprint

    SciTech Connect

    Heath, G. A.; Burkhardt, J. J.; Turchi, C. S.

    2011-09-01

    Climate change and water scarcity are important issues for today's power sector. To inform capacity expansion decisions, hybrid life cycle assessment is used to evaluate a reference design of a parabolic trough concentrating solar power (CSP) facility located in Daggett, California, along four sustainability metrics: life cycle greenhouse gas (GHG) emissions, water consumption, cumulative energy demand (CED), and energy payback time (EPBT). This wet-cooled, 103 MW plant utilizes mined nitrate salts in its two-tank, thermal energy storage (TES) system. Design alternatives of dry-cooling, a thermocline TES, and synthetically-derived nitrate salt are evaluated. During its life cycle, the reference CSP plant is estimated to emit 26 g CO2eq per kWh, consume 4.7 L/kWh of water, and demand 0.40 MJeq/kWh of energy, resulting in an EPBT of approximately 1 year. The dry-cooled alternative is estimated to reduce life cycle water consumption by 77% but increase life cycle GHG emissions and CED by 8%. Synthetic nitrate salts may increase life cycle GHG emissions by 52% compared to mined. Switching from two-tank to thermocline TES configuration reduces life cycle GHG emissions, most significantly for plants using synthetically-derived nitrate salts. CSP can significantly reduce GHG emissions compared to fossil-fueled generation; however, dry-cooling may be required in many locations to minimize water consumption.

  7. The Gevaltig: An inertial fusion powered manned spacecraft design for outer solar system missions

    SciTech Connect

    Murray, K.A.

    1989-10-01

    The Gevaltig is an inertial fusion powered rocket engine capable of manned missions to other planets with round trip mission times as low as 100 days. The Gevaltig design was previously described for a mission to Mars. This effort defines the spacecraft components in terms of mass and presents a mission analysis for a manned trip to Titan, a moon of Saturn. The Gevaltig component masses are provided as a function of fuel pellet ignition frequency. These variable mass components include the fuel tanks, radiators, structure and EM pumps. Fixed mass components include the drivers, coil, coil shield, power processing system, payload, crew shield and laser mirrors. A 6 MW nuclear reactor is included in the design for startup purposes. Various combinations of thrust, mission duration and specific impulse were evaluated to determine a reasonable mission scenario for the Titan mission. The mission analysis yielded several viable mission scenarios, with round trip durations of 370 to 500 days and initial (launch) masses from lunar orbit of 2500 to 20,000 metric tons. 15 refs., 13 figs., 14 tabs.

  8. EERE Success Story-Electric Cooperatives Channel Solar Resources...

    Office of Environmental Management (EM)

    solar electricity as the cost of photovoltaic (PV) solar energy systems decline dramatically. ... This suite of materials and best practices is designed to not only reduce solar ...

  9. Tai Yuan Solar Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Taiwan Sector: Solar Product: Private firm that specialises in financing and designing solar cell manufacturing factories. References: Tai Yuan Solar Co Ltd1 This article is a...

  10. Solar Power Company Limited SPC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar Power Company Limited SPC Jump to: navigation, search Name: Solar Power Company Limited (SPC) Place: Thailand Sector: Solar Product: Thailand-based company that designs,...

  11. Solar collection

    SciTech Connect

    Cole, S.L.

    1984-08-01

    This report contains summaries and pictures of projects funded by the Appropriate Technology Small Grants Program which include the following solar technologies: solar dish; photovoltaics; passive solar building and solar hot water system; Trombe wall; hot air panel; hybrid solar heating system; solar grain dryer; solar greenhouse; solar hot water workshops; and solar workshops.

  12. DOE Publishes GATEWAY Report on High-Luminous-Flux LED Lighting in a High-Temperature Environment

    Energy.gov [DOE]

    The U.S. Department of Energy has released a GATEWAY report on a trial demonstration in which the incumbent quartz metal halide (QMH) area lighting was replaced with LED at three pole locations...

  13. Coupled optical/thermal/fluid analysis and design requirements for operation and testing of a supercritical CO2 solar receiver.

    SciTech Connect

    Khivsara, Sagar

    2015-01-01

    Recent studies have evaluated closed-loop supercritical carbon dioxide (s-CO2) Brayton cycles to be a higher energy-density system in comparison to conventional superheated steam Rankine systems. At turbine inlet conditions of 923K and 25 MPa, high thermal efficiency (~50%) can be achieved. Achieving these high efficiencies will make concentrating solar power (CSP) technologies a competitive alternative to current power generation methods. To incorporate a s-CO2 Brayton power cycle in a solar power tower system, the development of a solar receiver capable of providing an outlet temperature of 923 K (at 25 MPa) is necessary. To satisfy the temperature requirements of a s-CO2 Brayton cycle with recuperation and recompression, it is required to heat s-CO2 by a temperature of ~200 K as it passes through the solar receiver. Our objective was to develop an optical-thermal-fluid model to design and evaluate a tubular receiver that will receive a heat input ~1 MWth from a heliostat field. We also undertook the documentation of design requirements for the development, testing and safe operation of a direct s-CO2 solar receiver. The main purpose of this document is to serve as a reference and guideline for design and testing requirements, as well as to address the technical challenges and provide initial parameters for the computational models that will be employed for the development of s-CO2 receivers.

  14. GATEWAY Demonstrations: LED System Performance in a Trial Installation--One Year Later, Yuma Border Patrol, Yuma, Arizona

    SciTech Connect

    Wilkerson, A. M.; Davis, R. G.

    2015-04-01

    Along the Yuma Sector Border Patrol Area in Yuma, Arizona, the GATEWAY program conducted a trial demonstration in which the incumbent quartz metal halide area lighting was replaced with LED at three pole locations at the Yuma Sector Border Patrol Area in Yuma, Arizona. The retrofit was documented to better understand LED technology performance in high-temperature environments. This report follows the GATEWAY Yuma Phase 1.0 Report and reflects LED system results documented one year after the demonstration began.

  15. Solar and Wind Rights

    Energy.gov [DOE]

    The law stipulates that associations must adopt an energy policy statement specifying details such as location, design, and architectural requirements of the solar energy systems within 120 days...

  16. Solar Energy Basics | NREL

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

    Solar Energy Basics Solar is the Latin word for sun-a powerful source of energy that can be used to heat, cool, and light our homes and businesses. That's because more energy from the sun falls on the earth in one hour than is used by everyone in the world in one year. A variety of technologies convert sunlight to usable energy for buildings. The most commonly used solar technologies for homes and businesses are solar water heating, passive solar design for space heating and cooling, and solar

  17. Community Shared Solar with Solarize | Department of Energy

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

    Community Shared Solar with Solarize Community Shared Solar with Solarize

  18. Solar Photovoltaic Success Stories - Energy Innovation Portal

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

    Solar Panel Design Ideas for Your Home Solar Panel Design Ideas for Your Home June 8, 2016 - 5:08pm Addthis These examples of building integrated photovoltaic panels are like solar eye candy. All images from U.S. Department of Energy Solar Decathlon These examples of building integrated photovoltaic panels are like solar eye candy. All images from U.S. Department of Energy Solar Decathlon Alexis Powers Communications Specialist at the National Renewable Energy Laboratory Solar is not just for

  19. Design

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

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water ...

  20. Baker-Barry Tunnel Lighting: Evaluation of a Potential GATEWAY Demonstrations Project

    SciTech Connect

    Tuenge, Jason R.

    2011-06-01

    The U.S. Department of Energy (DOE) is evaluating the Baker-Barry Tunnel as a potential GATEWAY Demonstrations project for deployment of solid-state lighting (SSL) technology. The National Park Service (NPS) views this project as a possible proving ground and template for implementation of light-emitting diode (LED) luminaires in other NPS tunnels, thereby expanding the estimated 40% energy savings from 132 MWh/yr for this tunnel to a much larger figure national

  1. Do-it-yourself low-cost solar-hot-air-collector design book. Final report, April 1983-September 1985

    SciTech Connect

    Bumpus, P.; Croteau, R.

    1985-12-01

    The book contains a detailed step-by-step instruction manual on how to assemble a 4' X 8' wood collector with a domestic hot-water option. A complete material list of all components necessary to fabricate a solar hot-air-collector are included in the text. The book also contains actual performance and computer-simulated performance of a site-built solar hot-air collector.

  2. Borrego Solar (Massachusetts) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    East Place: Lowell, Massachusetts Zip: 01852 Region: Greater Boston Area Sector: Solar Product: Design and install solar systems Website: www.borregosolar.com Coordinates:...

  3. Wheat Ridge Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    4550 Teller St Place: Wheat Ridge, Colorado Zip: 80033 Region: Rockies Area Sector: Solar Product: Design and installation of solar systems for residential and small business...

  4. NREL: Learning - Solar Process Heat Basics

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

    Water Heating Solar water-heating systems are designed to provide large quantities of hot water for nonresidential ... Solar absorption systems use thermal energy to evaporate a ...

  5. Industrial Solar Technology Corp | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar Technology Corp Jump to: navigation, search Name: Industrial Solar Technology Corp Place: Golden, Colorado Zip: CO 80403-1 Product: IST designs, manufactures, installs and...

  6. Tessera Solar (Texas) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    77002 Region: Texas Area Sector: Solar Product: Developer of utility scale solar power plants based on dish-Stirling engine designs Website: www.tesserasolar.com Coordinates:...

  7. Residential Solar Valuation Rates | Department of Energy

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

    Residential Solar Valuation Rates Residential Solar Valuation Rates This presentation summarizes the information discussed by Rabago Energy during the Best Practices in the Design ...

  8. Solar Neutrinos

    DOE R&D Accomplishments

    Davis, R. Jr.; Harmer, D. S.

    1964-12-01

    The prospect of studying the solar energy generation process directly by observing the solar neutrino radiation has been discussed for many years. The main difficulty with this approach is that the sun emits predominantly low energy neutrinos, and detectors for observing low fluxes of low energy neutrinos have not been developed. However, experimental techniques have been developed for observing neutrinos, and one can foresee that in the near future these techniques will be improved sufficiently in sensitivity to observe solar neutrinos. At the present several experiments are being designed and hopefully will be operating in the next year or so. We will discuss an experiment based upon a neutrino capture reaction that is the inverse of the electron-capture radioactive decay of argon-37. The method depends upon exposing a large volume of a chlorine compound, removing the radioactive argon-37 and observing the characteristic decay in a small low-level counter.

  9. Secure Information Exchange Gateway for Electric Grid Operations

    SciTech Connect

    Robertson, F. Russell; Carroll, J. Ritchie; Sanders, William; Yardley, Timothy; Heine, Erich; Hadley, Mark; McKinnon, David; Motteler, Barbara; Giri, Jay; Walker, William; McCartha, Esrick

    2014-09-30

    The major objectives of the SIEGate project were to improve the security posture and minimize the cyber-attack surface of electric utility control centers and to reduce the cost of maintaining control-room-to-control-room information exchange. Major project goals included the design, development, testing, and commercialization of a single security-hardened appliance that could meet industry needs for resisting cyber-attacks while protecting the confidentiality and integrity of a growing volume of real-time information needed to ensure the reliability of the bulk electric system and interoperating with existing data formats and networking technologies. The SIEGate project has achieved its goals and objectives. The SIEGate Design Document, issued in March 2012, presented SIEGate use cases, provided SIEGate requirements, established SIEGate design principles, and prescribed design functionality of SIEGate as well as the components that make up SIEGate. SIEGate Release Version 1.0 was posted in January 2014. Release Version 1.0.83, which was posted on March 28, 2014, fixed many issues discovered by early adopters and added several new features. Release Candidate 1.1, which added additional improvements and bug fixes, was posted in June 2014. SIEGate executables have been downloaded more than 300 times. SIEGate has been tested at PJM, Entergy, TVA, and Southern. Security testing and analysis of SIEGate has been conducted at PNNL and PJM. Alstom has provided a summary of recommended steps for commercialization of the SIEGate Appliance and identified two deployment models with immediate commercial application.

  10. SolarCity Corp | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Place: Foster City, California Zip: 94404 Sector: Solar Product: US-based designer and installer of solar systems for domestic and commercial use. References: SolarCity Corp1...

  11. Solar/Wind Access Policy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    SolarWind Access Policy < Solar Jump to: navigation, search Solar and wind access laws are designed to establish a right to install and operate a solar or wind energy system at a...

  12. Tips: Passive Solar Heating and Cooling | Department of Energy

    Office of Environmental Management (EM)

    Passive Solar Heating and Cooling Tips: Passive Solar Heating and Cooling July 27, 2014 - 4:18pm Addthis Tips: Passive Solar Heating and Cooling Using passive solar design to heat...

  13. Active Solar Heating | Department of Energy

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

    Home Heating Systems » Active Solar Heating Active Solar Heating This North Carolina home gets most of its space heating from the passive solar design, but the solar thermal system supplies both domestic hot water and a secondary radiant floor heating system. | Photo courtesy of Jim Schmid Photography, NREL This North Carolina home gets most of its space heating from the passive solar design, but the solar thermal system supplies both domestic hot water and a secondary radiant floor heating

  14. Solar cogeneration

    SciTech Connect

    Not Available

    1982-04-01

    After a brief introduction to the operational principles and advantages of solar cogeneration, seven cogeneration studies are summarized covering such applications as sulfur mining, copper smelting, enhanced oil recovery, natural gas processing, sugar mill operations, and space heating and cooling. For each plant is given a brief site description, project summary, conceptual design, and functional description, including a picture of the facility and a flow chart. Also listed are the addresses of the companies involved for obtaining additional information. (LEW)

  15. Proceedings of the Flat-Plate Solar Array Project Research Forum on the design of flat-plate photovoltaic arrays for central stations

    SciTech Connect

    1983-01-01

    The Flat-Plate Solar Array Project, managed by the Jet Propulsion Laboratory for the US Department of Energy, has focused on advancing technologies relevant to the design and construction of megawatt-level central-station systems. Photovoltaic modules and arrays for flat-plate central-station or other large-scale electric power production facilities require the establishment of a technical base that resolves design issues and results in practical and cost-effective configurations. The Central Station Research Forum addressed design, qualification and maintenance issues related to central-station arrays derived from the engineering and operating experiences of early applications and parallel laboratory research activities. Technical issues were examined from the viewpoint of the utility engineer, architect-engineer and laboratory researcher. The forum included presentations on optimum source-circuit designs, module insulation design for high system voltages, array safety, structural interface design, measurements and array operation and maintenance. The Research Forum focused on current capabilities as well as design difficulties requiring additional technological thrusts and/or continued research emphasis. Session topic summaries highlighting major points during group discussions, identifying promising technical approaches or areas of future research, are presented.

  16. Conceptual design of the solar repowering system for West Texas Utilities Company Paint Creek Power Station Unit No. 4. Final report

    SciTech Connect

    Not Available

    1980-07-15

    A conceptual design of a sodium-cooled, solar, central-receiver repowering system for West Texas Utilities' Paint Creek Unit 4 was prepared. The existing Paint Creek Unit 4 is a natural-gas-fired, baseload unit with a dependable net power output of 110 MWe. It is a reheat unit, has a main steam temperature and pressure of 538/sup 0/C (1000/sup 0/F) and 12.41 MPa (1800 psig), respectively, has a reheat temperature of 538/sup 0/C (1000/sup 0/F), and was placed in operation in 1972. On this conceptual design study program, a large number of trade studies and optimizations were carried out, in order to derive the most cost-effective design that had the greatest potential for widespread application and commercialization. As a result of these studies, the optimum power level for the solar part of the plant was determined to be 60 MWe, and provisions were made to store enough solar energy, so that the solar part of the plant would produce, on March 21 (equinox), 60 MWe of electric power for a period of 4 h after sunset. The tower in this system is 154 m (505 ft) high to the midpoint of the receiver, and is surrounded by 7882 heliostats (mirrors), each of which is 6.7 m (22 ft) by 7.3 m (24 ft). The mirror field occupies 1.74 x 10/sup 6/ m/sup 2/ (430 acres), and extends 1040 m (3400 ft) to the north of the tower, 550 m (1800 ft) to the south of the tower, and is bounded on the east and west by Lake Stamford. The receiver, which is of the external type, is 15.4 m (50.5 ft) high by 14 m (45.9 ft) in diameter, and is capable of absorbing a maximum of 226 MW of thermal energy. The set of sodium-to-steam generators consists of an evaporator, a superheater, and a reheater, the power ratings of which are 83.2, 43.7, and 18.1 MWt, respectively. Conceptual design, system characteristics, economic analysis, and development plans are detailed. (WHK)

  17. TIS: an Intelligent Gateway Computer for information and modeling networks. Overview

    SciTech Connect

    Hampel, V.E.; Bailey, C.; Kawin, R.A.; Lann, N.A.; McGrogan, S.K.; Scott, W.S.; Stammers, S.M.; Thomas, J.L.

    1983-08-01

    The Technology Information System (TIS) is being used to develop software for Intelligent Gateway Computers (IGC) suitable for the prototyping of advanced, integrated information networks. Dedicated to information management, TIS leads the user to available information resources, on TIS or elsewhere, by means of a master directory and automated access procedures. Other geographically distributed information centers accessible through TIS include federal and commercial systems like DOE/RECON, NASA/RECON, DOD/DROLS, DOT/TIC, CIS, and DIALOG in the United States, the chemical information systems DARC in France, and DECHEMA in West Germany. New centers are added as required.

  18. 20K Hour GATEWAY Testing Results for I-35W Bridge Webinar

    Energy.gov [DOE]

    The U.S. Department of Energy released a GATEWAY Demonstration report on the longer-term performance of an LED lighting system that was installed on the I-35W Bridge in Minneapolis in September 2008 and represents one of the country’s oldest continuously operated exterior LED lighting installations. Prior to installation, two of the LED luminaires were tested, along with a third luminaire that was not installed on the bridge but was tested for 6,000 hours in a laboratory for comparison purposes.

  19. Global Science Gateway Now Open | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information Now Open Back to the OSTI News Listing for 2007 You can now easily access science from around the world via a single Web entry point, www.WorldWideScience.org. This new global science gateway opened for free public access on June 22 at the public meeting of the International Council for Scientific and Technical Information Annual General Assembly in Nancy, France. WorldWideScience.org currently retrieves research results from more than 200 million pages

  20. Gateway:Amrica Latina/Aprender ms sobre las ERNC/Seleccion...

    OpenEI (Open Energy Information) [EERE & EIA]

    Assesing Solar Resource for CSP plants Fuente: Leonardo Energy Idioma: Ingls Solar Water Heating Basics Fuente: AltE Store Idioma: Ingls Retrieved from "http:...

  1. Solar Newsletter

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Sciences Applications National Solar Thermal Test Facility Nuclear Energy ...

  2. Solar Energy

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Sciences Applications National Solar Thermal Test Facility Nuclear Energy ...

  3. GATEWAY Demonstrations: OLED Lighting in the Offices of Aurora Lighting Design, Inc.

    Energy Saver

    F, Title I, Title II, and Title III, and Division G, Consolidated and Further Continuing Appropriations Act, 2013, Pub. L. No.113- References: Consolidated and Further Continuing Division F, Titles I, II, and III Appropriations Act, 2013, Pub. L. No. 113-6 Division G, Section 3003 Consolidated Appropriations Act, 2012, Division B, Title III, Section Pub. L. No. 112-74 301(a), 301(b), 316, and Title V, Sections 501, 504, 505 Division C, Title VII, Section 725 When is this Financial Assistance

  4. Progress in solar engineering

    SciTech Connect

    Yogi Goswami, D.

    1987-01-01

    This book presents reviews of various areas of solar energy technology, including wind energy technology and ocean thermal energy conversion (OTEC). It also identifies and suggests needs and future directions of research and development. The subjects covered in this book include solar thermal power technology, solar thermal storage, solar ponds, industrial process heat, solar water heating, active and passive solar cooling methods, low-cost collector development, photovoltaic research and applications, wind energy technology, and OTEC. Also covered are the status of the technology, basic and applied research, design and analysis methods, and performance and operational experiences of various systems. The book will thus be helpful as a review of various solar, wind, and OTEC technologies.

  5. Performance analysis of a latent heat storage system with phase change material for new designed solar collectors in greenhouse heating

    SciTech Connect

    Benli, Hueseyin; Durmus, Aydin

    2009-12-15

    The continuous increase in the level of greenhouse gas emissions and the rise in fuel prices are the main driving forces behind the efforts for more effectively utilize various sources of renewable energy. In many parts of the world, direct solar radiation is considered to be one of the most prospective sources of energy. In this study, the thermal performance of a phase change thermal storage unit is analyzed and discussed. The storage unit is a component of ten pieced solar air collectors heating system being developed for space heating of a greenhouse and charging of PCM. CaCl{sub 2}6H{sub 2}O was used as PCM in thermal energy storage with a melting temperature of 29 C. Hot air delivered by ten pieced solar air collector is passed through the PCM to charge the storage unit. The stored heat is utilized to heat ambient air before being admitted to a greenhouse. This study is based on experimental results of the PCM employed to analyze the transient thermal behavior of the storage unit during the charge and discharge periods. The proposed size of collectors integrated PCM provided about 18-23% of total daily thermal energy requirements of the greenhouse for 3-4 h, in comparison with the conventional heating device. (author)

  6. Solar Research | NREL

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

    Photo of a city landscape with a sun in the background. Solar energy research at NREL includes photovoltaics, concentrating solar power, solar grid and systems integration, and market acceleration and soft costs. Photovoltaic Research NREL's capabilities in photovoltaics (PV) range across fundamental and applied research and development (R&D), including theory and modeling, materials deposition, device design, measurements and characterization, and reliability testing and engineering. Our PV

  7. Solar selective absorption coatings

    DOEpatents

    Mahoney, Alan R.; Reed, Scott T.; Ashley, Carol S.; Martinez, F. Edward

    2004-08-31

    A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for infrared thermal radiation. A sol-gel layer protects the structured metallic overlayer from mechanical, thermal, and environmental degradation. Processes for producing such solar selective absorption coatings are also disclosed.

  8. Solar selective absorption coatings

    DOEpatents

    Mahoney, Alan R.; Reed, Scott T.; Ashley, Carol S.; Martinez, F. Edward

    2003-10-14

    A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for infrared thermal radiation. A sol-gel layer protects the structured metallic overlayer from mechanical, thermal, and environmental degradation. Processes for producing such solar selective absorption coatings are also disclosed.

  9. Device Architecture Simplification of Laser Pattering in High-Volume Crystalline Silicon Solar Cell Fabrication using Intensive Computation for Design and Optimization

    SciTech Connect

    Grupp Mueller, Guenther; Herfurth, Hans; Dunham, Scott; Xu, Baomin

    2013-11-15

    Prices of Si based solar modules have been continuously declining in recent years. Goodrich is pointing out that a significant portion of these cost reductions have come about due to ?economies of scale? benefits, but there is a point of diminishing returns when trying to lower cost by simply expanding production capacity [1]. Developing innovative high volume production technologies resulting in an increase of conversion efficiency without adding significant production cost will be necessary to continue the projected cost reductions. The Foundational Program to Advance Cell Efficiency (F-PACE) is seeking to achieve this by closing the PV efficiency gap between theoretical achievable maximum conversion efficiency - 29% for c-Si - and the current typical production - 18.5% for a typical full area back contact c-Si Solar cell ? while targeting a module cost of $0.50/Watt . The research conducted by SolarWorldUSA and it?s partners within the FPACE framework focused on the development of a Hybrid metal-wrap-through (MWT) and laser-ablated PERC solar cell design employing a extrusion metallization scheme to achieve >20% efficient devices. The project team was able to simulate, develop and demonstrate the technologies necessary to build p-type MWT PERC cells with extruded front contacts. Conversion efficiencies approaching 20% were demonstrated and a path for further efficiency improvements identified. A detailed cost of ownership calculation for such a device was based on a NREL cost model and is predicting a $/Watt cost below 85 cents on a 180 micron substrate. Several completed or planned publications by SolarWorldUSA and our partners are based on the research conducted within this project and are adding to a better understanding of the involved technologies and materials. Several aspects and technologies of the proposed device have been assessed in regards to technical effectiveness and economic feasibility. It has been shown in a pilot demonstration with wafer

  10. Hybrid Solar GHP Simulator

    Energy Science and Technology Software Center

    2012-12-11

    This project provides an easy-to-use, menu-driven, software tool for designing hybrid solar-geothermal heat pump systems (GHP) for both heating- and cooling-dominated buildings. No such design tool currently exists. In heating-dominated buildings, the design approach takes advantage of glazed solar collectors to effectively balance the annual thermal loads on the ground with renewable solar energy. In cooling-dominated climates, the design approach takes advantage of relatively low-cost, unglazed solar collectors as the heat rejecting component. The primarymore » benefit of hybrid GHPs is the reduced initial cost of the ground heat exchanger (GHX). Furthermore, solar thermal collectors can be used to balance the ground loads over the annual cycle, thus making the GHX fully sustainable; in heating-dominated buildings, the hybrid energy source (i.e., solar) is renewable, in contrast to a typical fossil fuel boiler or electric resistance as the hybrid component; in cooling-dominated buildings, use of unglazed solar collectors as a heat rejecter allows for passive heat rejection, in contrast to a cooling tower that consumes a significant amount of energy to operate, and hybrid GHPs can expand the market by allowing reduced GHX footprint in both heating- and cooling-dominated climates. The design tool allows for the straight-forward design of innovative GHP systems that currently pose a significant design challenge. The project lays the foundations for proper and reliable design of hybrid GHP systems, overcoming a series of difficult and cumbersome steps without the use of a system simulation approach, and without an automated optimization scheme. As new technologies and design concepts emerge, sophisticated design tools and methodologies must accompany them and be made usable for practitioners. Lack of reliable design tools results in reluctance of practitioners to implement more complex systems. A menu-driven software tool for the design of hybrid solar GHP systems

  11. Baseload Concentrating Solar Power Generation | Department of Energy

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

    Concentrating Solar Power » Baseload Concentrating Solar Power Generation Baseload Concentrating Solar Power Generation Baseload Concentrating Solar Power Generation In 2010, DOE issued the Baseload Concentrating Solar Power (CSP) Generation funding opportunity announcement (FOA). The following projects were selected under this competitive solicitation: Abengoa: Advanced Nitrate Salt Central Receiver Power Plant eSolar: Modular and Scalable Baseload Molten Salt Plant Conceptual Design and

  12. Design, testing, and commercialization plans for the SAIC/STM 20 kW{sub e} solar dish/Stirling system

    SciTech Connect

    Beninga, K.J.; Davenport, R.L.; Johansson, S.N.

    1995-12-31

    As a part of the US Department of Energy`s (DOE) Utility-Scale Joint-Venture Program, Science Applications International Corporation (SAIC) and Stirling Thermal Motors (STM) have teamed to produce a solar dish/Stirling system for utility electricity generation. The 90 m{sup 2} dish concentrator consists of 16 stretched membrane mirror facets on a truss structure with an azimuth/elevation gear drive. The design modifies a faceted stretched membrane dish design developed previously by SAIC and WGA, Inc. in order to simplify the structure and reduce manufacturing costs, The Stirling engine used in the system is the STM 4-120 kinematic Stirling engine. It features variable swash plate control and a direct absorption solar receiver with hydrogen as the operating fluid. A prototype dish/Stirling system has been installed at a test site near Golden, Colorado and is now undergoing tests. The optical and thermal performance of the dish is being characterized using a Coldwater calorimeter and the optical Beam Characterization System (BCS) developed by Sandia National Labs in Albuquerque, New Mexico. After completion of the dish characterization tests, the STM engine will be installed on the dish and system power generation and efficiency will be measured. This paper presents a summary of the SAIC/STM dish/Stirling system design and gives results from initial testing of the system. Also described are SAIC`s plans for manufacturing and commercialization of the dish/Stirling system to utilities and other markets in the US and abroad.

  13. Aspen Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sector: Solar Product: Design, installation & maintenance of active, passive, and photovoltaic energy systems Website: www.aspensolar.com Coordinates: 39.649755, -106.617574...

  14. Kosmo Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    offers installation, repair, consulting, design and project management services for both solar energy and energy conservation projects. Coordinates: 42.640925, -88.413644 Show...

  15. Solar Ready Buildings Planning Guide

    SciTech Connect

    Lisell, L.; Tetreault, T.; Watson, A.

    2009-12-01

    This guide offers a checklist for building design and construction to enable installation of solar photovoltaic and heating systems at some time after the building is constructed.

  16. Space Solar Power Program

    SciTech Connect

    Arif, H.; Barbosa, H.; Bardet, C.; Baroud, M.; Behar, A.; Berrier, K.; Berthe, P.; Bertrand, R.; Bibyk, I.; Bisson, J.; Bloch, L.; Bobadilla, G.; Bourque, D.; Bush, L.; Carandang, R.; Chiku, T.; Crosby, N.; De Seixas, M.; De Vries, J.; Doll, S.; Dufour, F.; Eckart, P.; Fahey, M.; Fenot, F.; Foeckersperger, S.; Fontaine, J.E.; Fowler, R.; Frey, H.; Fujio, H.; Gasa, J.M.; Gleave, J.; Godoe, J.; Green, I.; Haeberli, R.; Hanada, T.; Ha

    1992-08-01

    Information pertaining to the Space Solar Power Program is presented on energy analysis; markets; overall development plan; organizational plan; environmental and safety issues; power systems; space transportation; space manufacturing, construction, operations; design examples; and finance.

  17. Passive solar heating analysis

    SciTech Connect

    Balcomb, J.D.; Jones, R.W.; Mc Farland, R.D.; Wray, W.O.

    1984-01-01

    This book discusses about the design of solar heating systems. The terms and symbols are clearly defined. Step-by-step procedures are indicated. Worked examples are given with tables, graphs, appendixes.

  18. Solar Energy Technologies: Research, Applications and Opportunities

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

    Technologies: Research, Applications and Opportunities Presentation to DOE/National Association of State Universities and Land Grant Colleges (NASULGC) August 3, 2004 John P. Benner, Division Manager Electronic Materials and Devices Solar Technology Programs * Photovoltaics (PV) * Concentrated Solar Power (CSP) * Solar Thermal * Solar Lighting Solar Lighting Distributed Distributed sunlight sunlight Electric light Electric light Fiber used in 2003 design Fiber used in 2004 design Estimated

  19. Solar Ready: An Overview of Implementation Practices

    SciTech Connect

    Watson, A.; Guidice, L.; Lisell, L.; Doris, L.; Busche, S.

    2012-01-01

    This report explores three mechanisms for encouraging solar ready building design and construction: solar ready legislation, certification programs for solar ready design and construction, and stakeholder education. These methods are not mutually exclusive, and all, if implemented well, could contribute to more solar ready construction. Solar ready itself does not reduce energy use or create clean energy. Nevertheless, solar ready building practices are needed to reach the full potential of solar deployment. Without forethought on incorporating solar into design, buildings may be incompatible with solar due to roof structure or excessive shading. In these cases, retrofitting the roof or removing shading elements is cost prohibitive. Furthermore, higher up-front costs due to structural adaptations and production losses caused by less than optimal roof orientation, roof equipment, or shading will lengthen payback periods, making solar more expensive. With millions of new buildings constructed each year in the United States, solar ready can remove installation barriers and increase the potential for widespread solar adoption. There are many approaches to promoting solar ready, including solar ready legislation, certification programs, and education of stakeholders. Federal, state, and local governments have the potential to implement programs that encourage solar ready and in turn reduce barriers to solar deployment. With the guidance in this document and the examples of jurisdictions and organizations already working to promote solar ready building practices, federal, state, and local governments can guide the market toward solar ready implementation.

  20. Solar Fuels via Artificial Photosynthesis

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

    Energy Resource Center Solar Energy Resource Center Solar Mapping Resources Featured Article There's a Map for That National laboratories and private companies have developed a number of tools to forecast the solar potential of homes and businesses. Learn more Icon of a person giving a presentation. Educating Consumers Tools designed to meet individual consumer needs Icon of a trending chart. Market Analysis State- and local-level challenges and solutions for establishing a thriving solar market

  1. Solar Easements

    Energy.gov [DOE]

    New Hampshire's "solar skyspace easement" provisions allow property owners to create solar easements in order to create and preserve a right to unobstructed access to solar energy. Easements remain...

  2. Solar Newsletter

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

    Solar Newsletter pvworkshopoct24 Permalink Gallery Register for the PV Performance Modeling and Monitoring Workshop, October 24-25, 2016 News, News & Events, Photovoltaic, Solar, ...

  3. Solar Energy Potential | Department of Energy

    Energy.gov [DOE] (indexed site)

    Sources Home Fossil Nuclear Renewable Energy Renewable Energy Home Biomass Geothermal Solar Water Wind Energy Efficiency Energy Efficiency Home Building Design Building Design...

  4. First Solar Manufacturing Solar Modules

    Energy.gov [DOE]

    In this photograph, a First Solar associate handles photovoltaic materials at the company's Ohio manufacturing plant. First Solar is an industry partner with the U.S. Department of Energy Solar...

  5. Eti Solar Energy Technologies Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ETI SOLAR is a renewable energy company specializing in designing, manufacturing, marketing and installing solar power systems. Coordinates: 36.979335, -85.610864 Show Map...

  6. Description of the Solar-MEC field test installation (Conference...

    Office of Scientific and Technical Information (OSTI)

    Research Org: Institute of Gas Technology, Chicago, Ill. (USA) Country of Publication: United States Language: English Subject: 14 SOLAR ENERGY; SOLAR AIR CONDITIONERS; DESIGN; ...

  7. Renewable Energy Finance, Solar Securitization: A Status Report (Fact Sheet)

    SciTech Connect

    Not Available

    2013-10-01

    This fact sheet was designed to introduce solar securitization and the activities of NREL and the Solar Access to Public Capital (SAPC) working group to the investment community.

  8. Solar Energy Systems Inc SES | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Systems Inc SES Jump to: navigation, search Name: Solar Energy Systems, Inc (SES) Place: Brooklyn, New York Zip: 11222 Sector: Solar Product: Private company designing, building,...

  9. Veeco Solar Equipment formerly Mill Lane Engineering | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    corporation that designs, builds, and integrates custom solar equipment and flexible solar panel coating systems. Coordinates: 43.33937, -88.817939 Show Map Loading map......

  10. Distributed Solar PV for Electricity System Resiliency: Policy...

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

    CONSIDERATIONS ABSTRACT Distributed solar photovoltaic (PV) systems have the ... DESIGNING PV SYSTEMS TO PROVIDE ENERGY RESILIENCY Deploying solar PV technology in ...

  11. Solar Powering Your Community: A Guide for Local Governments...

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

    Solar Powering Your Community: A Guide for Local Governments (Book), Energy Efficiency & Renewable Energy (EERE) DOE designed this guide-Solar Powering Your Community: A Guide for ...

  12. SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 7. Science Applications, Incorporated field test facility preliminary design

    SciTech Connect

    Not Available

    1985-01-01

    This report contains the preliminary design of an SCEAS Engineering Test Facility (ETF). The ETF is a 3600 m/sup 2/ fluid roof greenhouse with an inflated plastic film roof to maintain a clean environment for the fluid roof and to protect the inner glazing from hail and other small missiles. The objective of the design was the faithful scaling of the commercial facility to ensure that the ETF results could be extrapolated to a commercial facility of any size. Therefore, all major features, including the photovoltaic power system, an integral water desalination system and even the basic structural module have been retained. The design is described in substantial detail in the body of this report, with appendices giving the drawings and specifications.

  13. Passive-solar construction handbook

    SciTech Connect

    Levy, E.; Evans, D.; Gardstein, C.

    1981-02-01

    Many of the basic elements of passive solar design are reviewed. Passive solar construction is covered according to system type, each system type discussion including a general discussion of the important design and construction issues which apply to the particular system and case studies illustrating designed and built examples of the system type. The three basic types of passive solar systems discussed are direct gain, thermal storage wall, and attached sunspace. Thermal performance and construction information is presented for typical materials used in passive solar collector components, storage components, and control components. Appended are an overview of analysis methods and a technique for estimating performance. (LEW)

  14. Region Solar Inc Solar Inc California Renewable Energy Solar...

    OpenEI (Open Energy Information) [EERE & EIA]

    Point Drive Fort Collins Colorado Solar Solar cell passive solar architectural glass solar grid tie inverter semiconductor flat panel display data storage http www advanced...

  15. Solar Circuitry

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

    Solar Circuitry" with the Solar Powered Energy Kit Curriculum: Solar Power- (light/electromagnetic radiation, electricity, circuitry, efficiency, energy transformation, subatomic particles) Grade Level: Middle or High School Size: Small groups, depending on ability level. Time: 4 to 5 class periods Summary: Students will learn how the solar cell changes light energy to electrical energy. Students will work in small groups and construct different solar panel configurations to see the

  16. SPO Takes a Rooftop Tour of Forrestal's Solar Panels | Department...

    Office of Environmental Management (EM)

    ... All images from U.S. Department of Energy Solar Decathlon Solar Panel Design Ideas for Your Home DOE to Invest Up to 13.7 Million in 11 Solar Cell Projects Bob Repine, Oregon ...

  17. New Location for Solar Decathlon 2011 Announced | Department...

    Energy Saver

    The Solar Decathlon challenges 20 teams to design, build and operate solar-powered houses that are cost-effective, energy-efficient and attractive. The first Solar Decathlon was ...

  18. Siemens Design PowerPoint-Templates

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

    Small Business Content * Construction Management * Engineering & Design * Solar Panels * ... * Tracker & Carport Communications * Warehouse & Transportation * Commissioning * ...

  19. Nevada Solar One Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar One Solar Power Plant Jump to: navigation, search Name Nevada Solar One Solar Power Plant Facility Nevada Solar One Sector Solar Facility Type Concentrating Solar Power...

  20. Mojave Solar Park Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar Park Solar Power Plant Jump to: navigation, search Name Mojave Solar Park Solar Power Plant Facility Mojave Solar Park Sector Solar Facility Type Concentrating Solar Power...

  1. Starwood Solar I Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Starwood Solar I Solar Power Plant Jump to: navigation, search Name Starwood Solar I Solar Power Plant Facility Starwood Solar I Sector Solar Facility Type Concentrating Solar...

  2. Solar Newsletter | Solar Research | NREL

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

    Market Pathways Solar Market Pathways The Solar Market Pathways program supports 15 SunShot projects that are advancing solar deployment across the United States. These projects take a variety of approaches to develop actionable strategic plans to expand solar electricity use for residential, community, and commercial properties. Awardees use a wide range of tools, including special financing mechanisms like commercial property assessed clean energy, and the integration of solar energy

  3. Solar Career Map | Department of Energy

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

    Career Map Solar Career Map The Solar Career Map explores the many job opportunities available in the solar industry. It is a comprehensive renewable energy competency model (careeronestop.org) that includes solar photovoltaic skills and knowledge as one of several career paths in renewable energy disciplines. The interactive online career map displays three dozen solar occupations in four sectors: component production, system design, sales & marketing, and installation/operations. This

  4. Flexible Assembly Solar Technology

    Energy.gov [DOE]

    The Flexible Assembly Solar Technology Fact Sheet explains a 2012 SunShot CSP R&D award project led by a team from BrightSource Industries. They will design and deploy a prototype of FAST, which is an automated collector-assembly platform that can be used for rapid assembly and installation of heliostats at a solar power tower plant. FAST has the potential to decrease costs related to permitting, construction, maintenance, operation, storage, and demolition of the heliostat assembly building, aiming to achieve SunShot Initiative’s target installed solar field cost of $75/m2.

  5. 2007 News | Solar | NREL

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

    7 News Below are news stories related to Solar. RSS Learn about RSS. December 7, 2007 Southwestern Energy Service Providers Work Together to Get Large-Scale Solar Project Built A multi-state consortium of southwestern energy service providers is issusing a Request for Proposal (RFP) for a utility-scale concentrating solar power plant. The plant would be owned by a third party, with consortium members each signing long-term purchase power agreements. The plant, with size, design, and location to

  6. Team Ontario 2009 Solar Decathlon House

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features Team Ontario/BC's solar-powered house that glows at night during the Lighting Design contest at the U.S. Department of Energy Solar Decathlon on the National Mall. Team...

  7. Students To Race Solar-Powered Vehicles

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

    the state next week will race model solar cars designed to tap into energy from the sun. ... Each team starts with a motor and a silicon solar cell, which converts light into ...

  8. Simple Design and Manufacturing Process for High-Intensity Silicon Vertical Multi-Junction Solar Cells: Inventions and Innovation Project Fact Sheet

    SciTech Connect

    New Horizon Technologies

    2001-01-17

    Project fact sheet written for the Inventions and Innovation Program about a breakthrough in solar cells in photovoltaic concentrator systems that will create cost savings in the industry.

  9. Solar Power

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

    Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade

  10. Proposed solar two project Barstow, California

    SciTech Connect

    Not Available

    1994-01-01

    This Environmental Assessment (EA) evaluates the environmental consequences of the proposed conversion and operation of the existing Solar One Facility in Daggett, Ca, near the city of Barstow, to a nitrate salt based heat transfer system, Solar Two. The EA also addresses the alternatives of different solar conversion technologies and alternative sites and discusses a no action alternative. A primary objective of the Solar Two Project is to demonstrate the technical and economic feasibility of a solar central receiver power plant using molten salt as the thermal storage and transport fluid medium. If successful, the information gathered from the Solar Two Project could be used to design larger commercial solar power plants.

  11. ImagineSolar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Workforce training, Corporate consulting - Solar projects, Solar sales, Solar marketing, Solar business development, Solar policy, Solar advocacy, Solar government...

  12. Solar Rights

    Energy.gov [DOE]

    A solar energy system is defined as "a system affixed to a building or buildings that uses solar devices, which are thermally isolated from living space or any other area where the energy is used...

  13. Solar Blog

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

    96426 Solar Blog en Solar Energy Jobs Outpace U.S. Economy http:energy.govarticlessolar-energy-jobs-outpace-us-economy

  14. Solar Rights

    Office of Energy Efficiency and Renewable Energy (EERE)

    Cities and counties in North Carolina generally may not adopt ordinances prohibiting the installation of "a solar collector that gathers solar radiation as a substitute for traditional energy for...

  15. Solar Rights

    Energy.gov [DOE]

    In the context of this law, a solar energy device is a system "manufactured and sold for the sole purpose of facilitating the collection and beneficial use of solar energy, including passive...

  16. Solar Forecasting

    Energy.gov [DOE]

    On December 7, 2012, DOE announced $8 million to fund two solar projects that are helping utilities and grid operators better forecast when, where, and how much solar power will be produced at U.S....

  17. Solar collectors

    SciTech Connect

    Cassidy, V.M.

    1981-11-01

    Practical applications of solar energy in commercial, industrial and institutional buildings are considered. Two main types of solar collectors are described: flat plate collectors and concentrating collectors. Efficiency of air and hydronic collectors among the flat plate types are compared. Also several concentrators are described, including their sun tracking mechanisms. Descriptions of some recent solar installations are presented and a list representing the cross section of solar collector manufacturers is furnished.

  18. Solar Energy Research Center (SERC)

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

    Solar Energy Research Center (SERC) Community Environmental Documents Tours Community Programs Friends of Berkeley Lab ⇒ Navigate Section Community Environmental Documents Tours Community Programs Friends of Berkeley Lab Project Description Chu Hall, previously Solar Energy Research Center (SERC), is a 39,000 gsf building designed to house research laboratories and offices devoted to nanoscale photovoltaic and electro-chemical solar energy systems. The location of the building is in the area

  19. Purchasing Solar Collectively with Solarize

    Office of Energy Efficiency and Renewable Energy (EERE)

    This video provides an overview of the concept behind The Solarize Guidebook, which offers neighborhoods a plan for getting volume discounts when making group purchases of rooftop solar energy...

  20. Homebuilder's Guide to Going Solar (Brochure)

    SciTech Connect

    Not Available

    2008-04-01

    A Homebuilder's Guide to Going Solar is designed to help you assess the benefits to your business and customers of installing solar equipment or making your houses solar-ready. The information comes from studies of builders who have successfully integrated solar into their operations as well as conversations with builders and solar professionals. These studies and conversations indicate that builders want to know: (1) Do solar economics work in my area? (2) If not, are there other reasons to go solar?; and (3) Is there a local support system of solar professionals I can call on to help me integrate solar seamlessly into my projects? This effort to educate builders about solar is a work in progress.

  1. Solar Newsletter | Solar Research | NREL

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

    an electronic newsletter that provides information on NREL's research and development of solar technologies. To receive new issues by email, subscribe to the Solar Newsletter. SUBSCRIBE Golden Rays - November 2016 Hot Topics Graphic of the DuraMAT logo New Consortium to Improve Solar Module Reliability and Performance NREL is leading the DuraMat Consortium to develop PV module materials for reliable, low-cost solar electricity. Photo of three individuals behind two clear beakers in a lab

  2. Solar Decathlon 2013

    SciTech Connect

    Lewis, Chandra; Ouyang, Derek; Brown, Victoria; Ainsworth, Claire; Lee, Daniel; King, Richard; ,

    2013-10-22

    The Solar Decathlon is a perfect example of how the Energy Department is training and inspiring the next generation of architects, engineers and entrepreneurs. The two-year competition challenges collegiate teams to build energy-efficient, solar-powered houses. Over the course of the competition, students gain hands-on experience in everything from fundraising and marketing to design and construction. Showcasing their houses to the general public allows students to get feedback on their designs and how they work in the real world -- something that many of them would never get in the classroom.

  3. Passive solar buildings

    SciTech Connect

    Balcomb, J.D.

    1992-10-01

    Developments in passive solar buildings that took place from the early 1970`s through 1989 are described. Much of the work covered was federally sponsored during the period 1975 through 1986. About half the volume is devoted to quantitative methods for modeling, simulation, and design analysis of passive buildings; the other half summarizes the quantitative results of testing and monitoring of models and buildings. The following are covered: building solar gain modeling, simulation analysis, simplified methods, materials and components, analytical results for specific systems, test modules, building integration, performance monitoring and results, and design tools. (MHR)

  4. Passive solar buildings

    SciTech Connect

    Balcomb, J.D. )

    1992-01-01

    Developments in passive solar buildings that took place from the early 1970's through 1989 are described. Much of the work covered was federally sponsored during the period 1975 through 1986. About half the volume is devoted to quantitative methods for modeling, simulation, and design analysis of passive buildings; the other half summarizes the quantitative results of testing and monitoring of models and buildings. The following are covered: building solar gain modeling, simulation analysis, simplified methods, materials and components, analytical results for specific systems, test modules, building integration, performance monitoring and results, and design tools. (MHR)

  5. Solar Decathlon 2013

    ScienceCinema

    Lewis, Chandra; Ouyang, Derek; Brown, Victoria; Ainsworth, Claire; Lee, Daniel; King, Richard;

    2014-01-10

    The Solar Decathlon is a perfect example of how the Energy Department is training and inspiring the next generation of architects, engineers and entrepreneurs. The two-year competition challenges collegiate teams to build energy-efficient, solar-powered houses. Over the course of the competition, students gain hands-on experience in everything from fundraising and marketing to design and construction. Showcasing their houses to the general public allows students to get feedback on their designs and how they work in the real world -- something that many of them would never get in the classroom.

  6. Concentrating Solar Power (Fact Sheet)

    SciTech Connect

    Not Available

    2011-10-01

    Concentrating Solar Power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet the nation's goal of making solar energy cost competitive with other energy sources by the end of the decade. The DOE SunShot Initiative is a collaborative national initiative to make solar energy technologies cost-competitive with other forms of energy by reducing the cost of solar energy systems by about 75% by the end of the decade. Reducing the total installed cost for utility-scale solar electricity to roughly 6 cents per kilowatt hour without subsidies will result in rapid, large-scale adoption of solar electricity across the United States. Reaching this goal will re-establish American technological leadership, improve the nation's energy security, and strengthen U.S. economic competitiveness in the global clean energy race. SunShot will work to bring down the full cost of solar - including the costs of solar cells and installation by focusing on four main pillars: (1) Technologies for solar cells and arrays that convert sunlight to energy; (2) Electronics that optimize the performance of the installation; (3) Improvements in the efficiency of solar manufacturing processes; and (4) Installation, design, and permitting for solar energy systems.

  7. Modeling, design and thermal performance of a BIPV/T system thermally coupled with a ventilated concrete slab in a low energy solar house: Part 1, BIPV/T system and house energy concept

    SciTech Connect

    Chen, Yuxiang; Athienitis, A.K.; Galal, Khaled

    2010-11-15

    This paper is the first of two papers that describe the modeling, design, and performance assessment based on monitored data of a building-integrated photovoltaic-thermal (BIPV/T) system thermally coupled with a ventilated concrete slab (VCS) in a prefabricated, two-storey detached, low energy solar house. This house, with a design goal of near net-zero annual energy consumption, was constructed in 2007 in Eastman, Quebec, Canada - a cold climate area. Several novel solar technologies are integrated into the house and with passive solar design to reach this goal. An air-based open-loop BIPV/T system produces electricity and collects heat simultaneously. Building-integrated thermal mass is utilized both in passive and active forms. Distributed thermal mass in the direct gain area and relatively large south facing triple-glazed windows (about 9% of floor area) are employed to collect and store passive solar gains. An active thermal energy storage system (TES) stores part of the collected thermal energy from the BIPV/T system, thus reducing the energy consumption of the house ground source heat pump heating system. This paper focuses on the BIPV/T system and the integrated energy concept of the house. Monitored data indicate that the BIPV/T system has a typical efficiency of about 20% for thermal energy collection, and the annual space heating energy consumption of the house is about 5% of the national average. A thermal model of the BIPV/T system suitable for preliminary design and control of the airflow is developed and verified with monitored data. (author)

  8. Portland, Oregon: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE)

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

    and Successes on the Path toward a Solar-Powered Community Portland, Oregon Includes case studies on: * Increasing Market Demand: The Solar Now! Campaign * Streamlining City Regulations * Integrating Solar into City Planning and Facilities October 2011 Solar in Action Portland was designated by the U.S. Department of Energy (DOE) on June 20, 2007, as a Solar America City. Portland has worked toward, and in many ways, achieved, a reputation as one of the country's leading cities in

  9. Solar Deployment System (SolarDS) Model: Documentation and Sample Results

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

    Solar Decathlon Solar Decathlon 1 of 69 Stevens Institute of Technology won top honors at the U.S. Department of Energy Solar Decathlon on October 17, 2015 overall by designing, building, and operating the most cost-effective, energy-efficient and attractive solar powered house. University at Buffalo, The State University of New York took second place followed by California Polytechnic State University, San Luis Obispo in third place. Image: Thomas Kelsey, U.S. Department of Energy Solar

  10. Passive solar construction handbook

    SciTech Connect

    Levy, E.; Evans, D.; Gardstein, C.

    1981-08-01

    Many of the basic elements of passive solar design are reviewed. The unique design constraints presented in passive homes are introduced and many of the salient issues influencing design decisions are described briefly. Passive solar construction is described for each passive system type: direct gain, thermal storage wall, attached sunspace, thermal storage roof, and convective loop. For each system type, important design and construction issues are discussed and case studies illustrating designed and built examples of the system type are presented. Construction details are given and construction and thermal performance information is given for the materials used in collector components, storage components, and control components. Included are glazing materials, framing systems, caulking and sealants, concrete masonry, concrete, brick, shading, reflectors, and insulators. The Load Collector Ratio method for estimating passive system performance is appended, and other analysis methods are briefly summarized. (LEW)

  11. Passive solar buildings research

    SciTech Connect

    Balcomb, J.D.

    1992-12-31

    This chapter covers research advances in passive solar buildings research during the time span from 1982 through 1991. These advances fall within the following categories: (1) short-term energy monitoring, (2) heat transport by natural convection within buildings, and (3) design guidelines and design tools. In short-term energy monitoring, a simulation model of the building is calibrated, based on data taken in a 3-day test. The method accurately predicts performance over an extended period. Heat transport through doorways is characterized for complex situations that arise in passive solar buildings. Simple concepts and models adequately describe the energy transport in many situations of interest. In a new approach, design guidelines are automatically generated for any specific locality. Worksheets or an accompanying computer program allow the designer to quickly and accurately evaluate performance and investigate design alternatives. 29 refs., 19 figs., 2 tabs.

  12. DOE Publishes GATEWAY Report on High-Luminous-Flux LED Lighting...

    Energy.gov [DOE] (indexed site)

    If high-flux LED technology performs well in a region with high ambient temperature and solar radiation, it can perform well in most outdoor environments. The full report and a ...

  13. Baker-Barry Tunnel Lighting: Evaluation of a Potential GATEWAY Demonstrations Project

    SciTech Connect

    Tuenge, Jason R.

    2011-06-28

    The U.S. Department of Energy is evaluating the Baker-Barry Tunnel as a potential GATEWAY Demonstrations project for deployment of solid-state lighting (SSL) technology. The National Park Service views this project as a possible proving ground and template for implementation of light-emitting diode (LED) luminaires in other tunnels, thereby expanding the estimated 40% energy savings from 132 MWh/yr to a much larger figure nationally. Most of the energy savings in this application is attributable to the instant-restrike capability of LED products and to their high tolerance for frequent on/off switching, used here to separately control either end of the tunnel during daytime hours. Some LED luminaires rival or outperform their high-intensity discharge (HID) counterparts in terms of efficacy, but options are limited, and smaller lumen packages preclude true one-for-one equivalence. However, LED products continue to improve in efficacy and affordability at a rate unmatched by other light source technologies; the estimated simple payback period of eight years (excluding installation costs and maintenance savings) can be expected to improve with time. The proposed revisions to the existing high-pressure sodium (HPS) lighting system would require slightly increased controls complexity and significantly increased luminaire types and quantities. In exchange, substantial annual savings (from reduced maintenance and energy use) would be complemented by improved quantity and quality of illumination. Although advanced lighting controls could offer additional savings, it is unclear whether such a system would prove cost-effective; this topic may be explored in future work.

  14. SU-D-BRD-03: A Gateway for GPU Computing in Cancer Radiotherapy Research

    SciTech Connect

    Jia, X; Folkerts, M; Shi, F; Yan, H; Yan, Y; Jiang, S; Sivagnanam, S; Majumdar, A

    2014-06-01

    Purpose: Graphics Processing Unit (GPU) has become increasingly important in radiotherapy. However, it is still difficult for general clinical researchers to access GPU codes developed by other researchers, and for developers to objectively benchmark their codes. Moreover, it is quite often to see repeated efforts spent on developing low-quality GPU codes. The goal of this project is to establish an infrastructure for testing GPU codes, cross comparing them, and facilitating code distributions in radiotherapy community. Methods: We developed a system called Gateway for GPU Computing in Cancer Radiotherapy Research (GCR2). A number of GPU codes developed by our group and other developers can be accessed via a web interface. To use the services, researchers first upload their test data or use the standard data provided by our system. Then they can select the GPU device on which the code will be executed. Our system offers all mainstream GPU hardware for code benchmarking purpose. After the code running is complete, the system automatically summarizes and displays the computing results. We also released a SDK to allow the developers to build their own algorithm implementation and submit their binary codes to the system. The submitted code is then systematically benchmarked using a variety of GPU hardware and representative data provided by our system. The developers can also compare their codes with others and generate benchmarking reports. Results: It is found that the developed system is fully functioning. Through a user-friendly web interface, researchers are able to test various GPU codes. Developers also benefit from this platform by comprehensively benchmarking their codes on various GPU platforms and representative clinical data sets. Conclusion: We have developed an open platform allowing the clinical researchers and developers to access the GPUs and GPU codes. This development will facilitate the utilization of GPU in radiation therapy field.

  15. Deming Solar Plant Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Deming Solar Plant Solar Power Plant Jump to: navigation, search Name Deming Solar Plant Solar Power Plant Facility Deming Solar Plant Sector Solar Facility Type Photovoltaic...

  16. SES Calico Solar One Project Solar Power Plant | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Calico Solar One Project Solar Power Plant Jump to: navigation, search Name SES Calico Solar One Project Solar Power Plant Facility SES Calico Solar One Project Sector Solar...

  17. Nvision.Solar - Ravnishte Solar PV Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar - Ravnishte Solar PV Plant Jump to: navigation, search Name Nvision.Solar - Ravnishte Solar PV Plant Facility Ravishte roof and facade mounted solar power plant Sector Solar...

  18. Solar Millenium Palen Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Palen Solar Power Plant Jump to: navigation, search Name Solar Millenium Palen Solar Power Plant Facility Solar Millenium Palen Sector Solar Facility Type Concentrating Solar Power...

  19. SES Solar Two Project Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Two Project Solar Power Plant Jump to: navigation, search Name SES Solar Two Project Solar Power Plant Facility SES Solar Two Project Sector Solar Facility Type Concentrating Solar...

  20. Carrizo Energy Solar Farm Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Carrizo Energy Solar Farm Solar Power Plant Jump to: navigation, search Name Carrizo Energy Solar Farm Solar Power Plant Facility Carrizo Energy Solar Farm Sector Solar Facility...

  1. Beacon Solar Energy Project Solar Power Plant | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar Energy Project Solar Power Plant Jump to: navigation, search Name Beacon Solar Energy Project Solar Power Plant Facility Beacon Solar Energy Project Sector Solar Facility...

  2. Prescott Airport Solar Plant Solar Power Plant | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Prescott Airport Solar Plant Solar Power Plant Jump to: navigation, search Name Prescott Airport Solar Plant Solar Power Plant Facility Prescott Airport Solar Plant Sector Solar...

  3. ARM: Baseline Solar Radiation Network (BSRN): solar irradiances...

    Office of Scientific and Technical Information (OSTI)

    Baseline Solar Radiation Network (BSRN): solar irradiances Title: ARM: Baseline Solar Radiation Network (BSRN): solar irradiances Baseline Solar Radiation Network (BSRN): solar ...

  4. El Dorado Solar Project Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solar Project Solar Power Plant Jump to: navigation, search Name El Dorado Solar Project Solar Power Plant Facility El Dorado Solar Project Sector Solar Facility Type Photovoltaic...

  5. Solar | Department of Energy

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

    Science & Innovation Energy Sources Renewable Energy Solar Solar How much do you know about solar power? Take our quiz and test your solar energy IQ. | Photo courtesy of ...

  6. Solar PV Incentive Programs | Department of Energy

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

    PV Incentive Programs Solar PV Incentive Programs This presentation summarizes the information discussed by NYSERDA during the Best Practices in the Design of Utility Solar Programs Webinar on September 27, 2012. utility_design_nyserda_mace.pdf (378.85 KB) More Documents & Publications Best Practices in the Design of Utility Solar Programs NYSERDA's CHP Program Guide, 2010 NYSERDA's RPS Customer Sited Tier Fuel Cell Program

  7. Team China Transforms Shipping Containers into a Solar-Powered House

    Office of Energy Efficiency and Renewable Energy (EERE)

    Team China is turning shipping containers into their 2011 Solar Deacthlon home design. Check it out!

  8. High Penetration Solar Deployment Funding Opportunity | Department of

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

    Energy High Penetration Solar Deployment Funding Opportunity High Penetration Solar Deployment Funding Opportunity Through the High Penetration Solar Deployment program, DOE is funding solar projects that are accelerating the placement of solar photovoltaic (PV) systems into existing and newly designed distribution circuits in the electrical grid. The High Penetration Solar Deployment projects are working with teams that include utility partners to model, test, and evaluate solutions to

  9. Texas Solar Power Company | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    1703 W Koenig Ln Place: Austin, Texas Zip: 78756 Region: Texas Area Sector: Solar Product: Design, sales and installation of renewable energy equipment and systems Website:...

  10. Project Profile: Scattering Solar Thermal Concentrators | Department...

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

    Pennsylvania State University logo -- This project is inactive -- Pennsylvania State University, under the 2012 SunShot Concentrating Solar Power (CSP) R&D FOA, is designing and ...

  11. Avanzalia Solar SL | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    PV project developer; assists with documentation, planning, design, installation and maintenance. References: Avanzalia Solar SL1 This article is a stub. You can help OpenEI by...

  12. SolarWrights Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Inc Place: Stonington, Rhode Island Zip: 6378 Sector: Renewable Energy, Solar, Wind energy Product: Rhode Island-based private company specialising in the design and...

  13. NREL: Concentrating Solar Power Research - Concentrating Solar...

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

    Concentrating Solar Power Resource Maps These direct-normal solar radiation maps-filtered by solar resource and land availability-identify the most economically suitable lands ...

  14. Solar Car

    SciTech Connect

    2010-01-01

    Des Moines Central Academy Middle School students compete in the Solar Car Challenge at the National Science Bowl, May 2 in Washington D.C.

  15. Solar Newsletter

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

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

  16. Solar Mapper

    Energy.gov [DOE]

    Interactive, online mapping tool providing access to spatial data related to siting utility-scale solar facilities in the southwestern United States.

  17. Solar Newsletter

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

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

  18. Solar Rights

    Energy.gov [DOE]

    Ordinances, bylaws, or regulations may reasonably restrict the installation and use of solar energy devices to protect public health and safety, buildings from damage, historic/aesthetic values (...

  19. Solar Decathlon 2015 | Department of Energy

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

    Solar Decathlon 2015 Solar Decathlon 2015 Addthis 1 of 69 Stevens Institute of Technology won top honors at the U.S. Department of Energy Solar Decathlon on October 17, 2015 overall by designing, building, and operating the most cost-effective, energy-efficient and attractive solar powered house. University at Buffalo, The State University of New York took second place followed by California Polytechnic State University, San Luis Obispo in third place. Image: Thomas Kelsey, U.S. Department of

  20. Next-Generation Solar Collectors for CSP

    Energy.gov [DOE]

    This fact sheet on Next-Generation Collectors for CSP highlights a solar energy program awarded through the 2012 SunShot Concentrating Solar Power R&D awards. The team is developing new solar collector base technologies for next-generation heliostats used in power tower systems. If successful, this project will result in a 50% reduction in solar field equipment cost and a 30% reduction in field installation cost compared to existing heliostat designs.

  1. Solar Energy Resource Center | Department of Energy

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

    Resource Center Solar Energy Resource Center Solar Mapping Resources Featured Article There's a Map for That National laboratories and private companies have developed a number of tools to forecast the solar potential of homes and businesses. Learn more Icon of a person giving a presentation. Educating Consumers Tools designed to meet individual consumer needs Icon of a trending chart. Market Analysis State- and local-level challenges and solutions for establishing a thriving solar market Icon

  2. Key Physical Mechanisms in Nanostructured Solar Cells

    SciTech Connect

    Dr Stephan Bremner

    2010-07-21

    The objective of the project was to study both theoretically and experimentally the excitation, recombination and transport properties required for nanostructured solar cells to deliver energy conversion efficiencies well in excess of conventional limits. These objectives were met by concentrating on three key areas, namely, investigation of physical mechanisms present in nanostructured solar cells, characterization of loss mechanisms in nanostructured solar cells and determining the properties required of nanostructured solar cells in order to achieve high efficiency and the design implications.

  3. Junior Solar Sprint - An Introduction to Building a Model Solar Car

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

    8 Revised 8/23/01 An Introduction to Building a Model Solar Car Student Guide for the Junior Solar Sprint Competition Produced by: Krisztina Holly and Akhil Madhani 2 Introduction Welcome to Junior Solar Sprint! By competing in Junior Solar Sprint, you will learn how to make your own model solar car that will run entirely from the power of the sun. Design You will experience first-hand the process of design. When you design your car, you will start with some ideas in your head and turn then into

  4. Solar Central Receiver Hybrid Power Systems sodium-cooled receiver concept. Final report. Volume II, Book 1. Conceptual design, Sections 1 through 4

    SciTech Connect

    1980-01-01

    The overall, long-term objective of the Solar Central Receiver Hybrid Power System program is to identify, characterize, and ultimately demonstrate the viability and cost effectiveness of solar/fossil, steam Rankine cycle, hybrid power systems that: (1) consist of a combined solar central receiver energy source and a nonsolar energy source at a single, common site, (2) may operate in the base, intermediate, and peaking capacity modes, (3) produce the rated output independent of variations in solar insolation, (4) provide a significant savings (50% or more) in fuel consumption, and (5) produce power at the minimum possible cost in mills/kWh. It is essential that these hybrid concepts be technically feasible and economically competitive with other systems in the near to mid-term time period (1985-1990) on a commercial scale. The program objective for Phase I is to identify and conceptually characterize solar/fossil steam Rankine cycle, commercial-scale, power plant systems that are economically viable and technically feasible. This volume presents in detail the market analysis, parametric analysis, and the selection process for the preferred system. (WHK)

  5. Solar Newsletter | Solar Research | NREL

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

    September 2016 Hot Topics NREL Researchers Leading Perovskite Research A method was developed to improve perovskite solar cells, making them more efficient and reliable with higher reproducibility. Supercomputing Model Provides Insights from Higher Solar Generation NREL Super Computing model provides insights from higher wind and solar generation in the Eastern Power Grid. How Much Storage to Achieve 50% PV in California? NREL analysis examines the role of flexibility and storage in new report.

  6. Shenandoah parabolic dish solar collector

    SciTech Connect

    Kinoshita, G.S.

    1985-01-01

    The objectives of the Shenandoah, Georgia, Solar Total Energy System are to design, construct, test, and operate a solar energy system to obtain experience with large-scale hardware systems for future applications. This report describes the initial design and testing activities conducted to select and develop a collector that would serve the need of such a solar total energy system. The parabolic dish was selected as the collector most likely to maximize energy collection as required by this specific site. The fabrication, testing, and installation of the parabolic dish collector incorporating improvements identified during the development testing phase are described.

  7. OLED Lighting in the Offices of Aurora Lighting Design, Inc. | Department

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

    of Energy in the Offices of Aurora Lighting Design, Inc. OLED Lighting in the Offices of Aurora Lighting Design, Inc. At the offices of Aurora Lighting Design, Inc., in Grayslake, IL, the GATEWAY program conducted its first investigation involving OLED lighting. The project experienced several challenges, but also highlighted a number of promising attributes - which indicate that with continued improvements in efficacy, longevity, size, and flexibility, OLEDs could provide a new tool for

  8. SSL EVALUATION: OLED Lighting in the Offices of Aurora Lighting Design, Inc.

    Energy Saver

    EVALUATION: OLED Lighting in the Offices of Aurora Lighting Design, Inc. The first GATEWAY demonstra- tion involving OLEDs is also the first office test site for the use of OLEDs in general lighting. In March 2014, Aurora Lighting Design, Inc., in Grayslake, IL, made the bold decision to install an OLED lighting system during offce renovations. Aurora is a small architectural lighting design offce located in the lower level of a residence. With large windows overlook- ing a lake, the offce uses

  9. Boston solar retrofits: studies of solar access and economics

    SciTech Connect

    Shapiro, M.

    1980-11-01

    Studies of solar access and solar retrofit economics are described for residential applications in the City of Boston. The study of solar access was based upon a random sample of 94 buildings; the sample was stratified to ensure a broad geographic representation from the city's various sections. Using available data on the heights and orientations of the sampled structures and surrounding buildings, each building's hourly access to sunlight was computed separately for the roof and south facing walls. These data were then aggregated by broad structural classifications in order to provide general measures of solar access. The second study was a comparative analysis of the economics of several solar heating and hot water systems. An active hot water system, installed using pre-assembled, commercially purchased equipment, was selected as a reference technology. A variety of measures of economic performance were computed for this system, with and without existing tax credits and under various financing arrangements. Next, a number of alternative approaches for solar space and water heating were identified from interviews with individuals and groups involved in solar retrofit projects in the Boston area. The objective was to identify approaches that many of those interviewed believe to be low-cost means of applying solar energy in residential settings. The approaches selected include thermal window covers, wall collectors, bread box water heaters, and sun spaces. Preliminary estimates of the performance of several representative designs were developed and the economics of these designs evaluated.

  10. Solar Decathlon Presentation

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

    Welcome STEAB 2007 2007 Solar Decathlon Accelerates R&D - Largest housing experiment ever held * Side-by-side comparison of building technologies - Testing and redesign * Iterative design process drives improvement 2002 Virginia Tech 2005 2007 Decathletes From all over the World ! 2007 2007 Moving in 2007 Mega lifts 2007 2007 2007 Solar Decathlon 2007 Schedule Sunday Monday Tuesday Wednesday Thursday Friday Saturday Oct 9 Oct 10 Oct 2 Oct 7 Oct 8 Oct 12 Oct 13 Oct 14 Oct 15 Oct 16 Oct 17

  11. Passive solar applications

    SciTech Connect

    Balcomb, J.D.

    1985-01-01

    Passive solar applications in buildings are described. The major emphasis of the research has been on devising mathematical models to characterize heat flow within buildings, on the validation of these models by comparison with test results, and on the subsequent use of the models to investigate the influence of both various design parameters and the weather on system performance. Results from both test modules and monitored buildings are discussed. Simulation analysis, the development of simplified methods, and systems analysis are outlined. Passive solar potential in China is discussed.

  12. Sandia Energy - Solar Resource Assessment

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

    Solar Resource Assessment Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Resource Assessment Solar Resource AssessmentTara...

  13. Sandia Energy - Solar Market Transformation

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

    Solar Market Transformation Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Solar Market TransformationTara...

  14. Proceedings of the Great Lakes Solar Greenhouse Conference V

    SciTech Connect

    Currin, C.G. (ed.)

    1983-01-01

    Proceedings of the Fifth Great Lakes Solar Greenhouse Conference are presented. Topics included are a review of greenhouses, greenhouses as integral part of an earth-sheltered house, solar architecture, design criteria, heat contribution from solar greenhouses, and the future for solar greenhouses.

  15. Sustainable Heat Power Europe GmbH formerly Solar Heat Power...

    OpenEI (Open Energy Information) [EERE & EIA]

    involved in the project development, design and construction of solar thermal, PV and biogas power plants. References: Sustainable Heat & Power Europe GmbH (formerly Solar Heat &...

  16. Design and experimental testing of the performance of an outdoor LiBr/H{sub 2}O solar thermal absorption cooling system with a cold store

    SciTech Connect

    Agyenim, Francis; Knight, Ian; Rhodes, Michael

    2010-05-15

    A domestic-scale prototype experimental solar cooling system has been developed based on a LiBr/H{sub 2}O absorption system and tested during the 2007 summer and autumn months in Cardiff University, UK. The system consisted of a 12 m{sup 2} vacuum tube solar collector, a 4.5 kW LiBr/H{sub 2}O absorption chiller, a 1000 l cold storage tank and a 6 kW fan coil. The system performance, as well as the performances of the individual components in the system, were evaluated based on the physical measurements of the daily solar radiation, ambient temperature, inlet and outlet fluid temperatures, mass flow rates and electrical consumption by component. The average coefficient of thermal performance (COP) of the system was 0.58, based on the thermal cooling power output per unit of available thermal solar energy from the 12 m{sup 2} Thermomax DF100 vacuum tube collector on a hot sunny day with average peak insolation of 800 W/m{sup 2} (between 11 and 13.30 h) and ambient temperature of 24 C. The system produced an electrical COP of 3.6. Experimental results prove the feasibility of the new concept of cold store at this scale, with chilled water temperatures as low as 7.4 C, demonstrating its potential use in cooling domestic scale buildings. (author)

  17. SOLAR PUMPED LASER MICROTHRUSTER

    SciTech Connect

    Rubenchik, A M; Beach, R; Dawson, J; Siders, C W

    2010-02-05

    The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

  18. Solar Pumped Laser Microthruster

    SciTech Connect

    Rubenchik, A. M.; Beach, R.; Dawson, J.; Siders, C. W.

    2010-10-08

    The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

  19. Modeling, design and thermal performance of a BIPV/T system thermally coupled with a ventilated concrete slab in a low energy solar house: Part 2, ventilated concrete slab

    SciTech Connect

    Chen, Yuxiang; Galal, Khaled; Athienitis, A.K.

    2010-11-15

    This paper is the second of two papers that describe the modeling and design of a building-integrated photovoltaic-thermal (BIPV/T) system thermally coupled with a ventilated concrete slab (VCS) adopted in a prefabricated, two-storey detached, low energy solar house and their performance assessment based on monitored data. The VCS concept is based on an integrated thermal-structural design with active storage of solar thermal energy while serving as a structural component - the basement floor slab ({proportional_to}33 m{sup 2}). This paper describes the numerical modeling, design, and thermal performance assessment of the VCS. The thermal performance of the VCS during the commissioning of the unoccupied house is presented. Analysis of the monitored data shows that the VCS can store 9-12 kWh of heat from the total thermal energy collected by the BIPV/T system, on a typical clear sunny day with an outdoor temperature of about 0 C. It can also accumulate thermal energy during a series of clear sunny days without overheating the slab surface or the living space. This research shows that coupling the VCS with the BIPV/T system is a viable method to enhance the utilization of collected solar thermal energy. A method is presented for creating a simplified three-dimensional, control volume finite difference, explicit thermal model of the VCS. The model is created and validated using monitored data. The modeling method is suitable for detailed parametric study of the thermal behavior of the VCS without excessive computational effort. (author)

  20. Photovoltaic Solar Projects | Department of Energy

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

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

  1. Solar Two

    SciTech Connect

    Not Available

    1998-04-01

    Solar Two is a concentrating solar power plant that can supply electric power on demand to the local utility, Southern California Edison Company. It can do so because it operates not only during sunny parts of the day, but it can store enough thermal energy from the sun to operate during cloudy periods and after dark, for up to three hours, at its rated output of 10 megawatts (MW). For the first time ever, a utility scale solar power plant can supply electricity when the utility needs it most, to satisfy the energy requirements of its customers.

  2. Solar and Photovoltaic Data from the University of Oregon Solar Radiation Monitoring Laboratory (UO SRML)

    DOE Data Explorer

    The UO SRML is a regional solar radiation data center whose goal is to provide sound solar resource data for planning, design, deployment, and operation of solar electric facilities in the Pacific Northwest. The laboratory has been in operation since 1975. Solar data includes solar resource maps, cumulative summary data, daily totals, monthly averages, single element profile data, parsed TMY2 data, and select multifilter radiometer data. A data plotting program and other software tools are also provided. Shade analysis information and contour plots showing the effect of tilt and orientation on annual solar electric system perfomance make up a large part of the photovoltaics data.(Specialized Interface)

  3. Solar Millenium Ridgecrest Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Ridgecrest Solar Power Plant Jump to: navigation, search Name Solar Millenium Ridgecrest Solar Power Plant Facility Solar Millenium Ridgecrest Sector Solar Facility Type...

  4. SES Solar Three Project Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Three Project Solar Power Plant Jump to: navigation, search Name SES Solar Three Project Solar Power Plant Facility SES Solar Three Project Sector Solar Facility Type Photovoltaics...

  5. Renewable Energy Concepts Solar Inc REC Solar | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Concepts Solar Inc REC Solar Jump to: navigation, search Name: Renewable Energy Concepts Solar Inc (REC Solar) Place: San Luis Obispo, California Zip: 93401 Sector: Solar Product:...

  6. Solar Ready Vets: Preparing Veterans for the Solar Workforce...

    Office of Environmental Management (EM)

    Solar Ready Vets: Preparing Veterans for the Solar Workforce Solar Ready Vets: Preparing Veterans for the Solar Workforce Addthis Description Solar Ready Vets, created by the ...

  7. Solar Technology Acceleration Center (SolarTAC): Solar Resource & Meteorological Assessment Project (SOLRMAP); Aurora, Colorado (Data)

    DOE Data Explorer

    Wilcox, S.; Andreas, A.

    Located in Colorado, near Denver International Airport, SolarTAC is a private, member-based, 74-acre outdoor facility where the solar industry tests, validates, and demonstrates advanced solar technologies. SolarTAC was launched in 2008 by a public-private consortium, including Midwest Research Institute (MRI). As a supporting member of SolarTAC, the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has established a high quality solar and meteorological measurement station at this location. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

  8. Solar Technology Acceleration Center (SolarTAC): Solar Resource & Meteorological Assessment Project (SOLRMAP); Aurora, Colorado (Data)

    DOE Data Explorer

    Wilcox, S.; Andreas, A.

    2011-02-11

    Located in Colorado, near Denver International Airport, SolarTAC is a private, member-based, 74-acre outdoor facility where the solar industry tests, validates, and demonstrates advanced solar technologies. SolarTAC was launched in 2008 by a public-private consortium, including Midwest Research Institute (MRI). As a supporting member of SolarTAC, the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has established a high quality solar and meteorological measurement station at this location. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

  9. Solar Rights

    Energy.gov [DOE]

    In June of 2015, SB 1626 was signed into law. It provides that during the development period, the developer may only prohibit  a property owner from installing solar in developments with 50 or...

  10. solar energy

    National Nuclear Security Administration (NNSA)

    8%2A en Solar power purchase for DOE laboratories http:nnsa.energy.govmediaroompressreleasessolarpower

  11. solar power

    National Nuclear Security Administration (NNSA)

    9%2A en Solar power purchase for DOE laboratories http:nnsa.energy.govmediaroompressreleasessolarpower

  12. Control of a solar pond

    SciTech Connect

    Sherman, B.S.; Imberger, J. )

    1991-01-01

    Solar ponds hold the promise of providing an alternative to diesel generation of electricity at remote locations in Australia where fuel costs are high. However, to reliably generate electricity with a solar pond requires high temperatures to be maintained throughout the year; this goal had eluded the Alice Springs solar pond prior to 1989 because of double-diffusive convection within the gradient zone. This paper presents control strategies designed to provide successful high temperature operation of a solar pond year-round. The strategies, which consist mainly of manipulating upper surface layer salinity and extracting heat from the storage zone are well suited to automation. They were tested at the Alice Springs solar pond during the summer of 1989 and maintained temperatures in excess of 85{degree}C for several months without any gradient stability problems.

  13. Solar interior and atmosphere

    SciTech Connect

    Cox, A.N.; Livingston, W.C.; Matthews, M.S. National Solar Observatory, Tucson, AZ )

    1991-01-01

    The present work discusses nuclear energy generation in the solar interior, solar neutrino experiments, solar premain-sequence evolution, the computation of standard solar models, radiative-zone mixing, solar element separation by atomic diffusion, the observation and theory of solar oscillations, the solar internal rotation and magnetism implications of oscillations, solar gravity modes, and solar oscillation-mode excitation. Also discussed are the solar spectrum, the role of the solar photosphere and a radiative boundary, high spatial-resolution techniques for solar study, high-resolution observations of the solar granulation, large-scale velocity fields, the solar activity cycle, the magnetic fields of active regions and sunspots, the physics of flux tubes and filigrees, the heating of the solar chromosphere, the fine structure of the solar transition region, coronal activity, the coronal origins of the solar winds, and postmain sequence solar evolution.

  14. Akeena Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Akeena Solar Jump to: navigation, search Logo: Akeena Solar Name: Akeena Solar Address: 16005 Los Gatos Blvd. Place: Los Gatos, California Zip: 95032 Sector: Solar Product: Solar...

  15. Adobe Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Adobe Solar Jump to: navigation, search Logo: Adobe Solar Name: Adobe Solar Place: Denver, Colorado Region: Rockies Area Sector: Solar Product: solar electric systems Phone Number:...

  16. Climatic Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Climatic Solar Jump to: navigation, search Logo: Climatic Solar Name: Climatic Solar Address: 650 2nd Lane Place: Vero Beach, Florida Zip: 32962 Sector: Solar Product: solar energy...

  17. Tejas Solares | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tejas Solares Jump to: navigation, search Name: Tejas Solares Place: Spain Sector: Solar Product: Tejas Solares is a Spain-based company focused on providing solar solutions for...

  18. Oxford Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Oxford Solar Jump to: navigation, search Name: Oxford Solar Place: Randolph, New Jersey Zip: 7869 Sector: Solar Product: Oxford Solar provides solar energy consulting and...

  19. SBM Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: SBM Solar Place: North Carolina Sector: Solar Product: SBM Solar is a solar panel manufacturer based in North Carolina. References: SBM Solar1 This article is...

  20. Solar Training | Department of Energy

    Energy.gov [DOE] (indexed site)

    Solar Business Innovation Networking and Solar Technical Assistance Solar Training Solar DATA ANALYSIS Solar jobs have risen rapidly since the start of the SunShot Initiative. ...

  1. Sustainable Energy Resources for Consumers Webinar on Building Design &

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

    Passive Solar Transcript | Department of Energy Building Design & Passive Solar Transcript Sustainable Energy Resources for Consumers Webinar on Building Design & Passive Solar Transcript Video recording transcript of a Webinar on Nov. 16, 2010 about residential passive solar building design and solar thermal heating applications passive_solar_webinar.pdf (151.77 KB) More Documents & Publications Home Performance with ENERGY STAR Webinar (text version) February 13, 2013 Webinar:

  2. Hybrid emitter all back contact solar cell

    DOEpatents

    Loscutoff, Paul; Rim, Seung

    2016-04-12

    An all back contact solar cell has a hybrid emitter design. The solar cell has a thin dielectric layer formed on a backside surface of a single crystalline silicon substrate. One emitter of the solar cell is made of doped polycrystalline silicon that is formed on the thin dielectric layer. The other emitter of the solar cell is formed in the single crystalline silicon substrate and is made of doped single crystalline silicon. The solar cell includes contact holes that allow metal contacts to connect to corresponding emitters.

  3. Solar Resource Assessment

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE solar resource research focuses on understanding historical solar resource patterns and making future predictions, both of which are needed to support reliable power system operation. As solar...

  4. NREL: Solar STAT Blog -

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

    Outreach Policy Basics Publications Request Assistance Technical Assistance Project Map Solar STAT Blog The Solar STAT blog discusses state and local efforts to develop solar...

  5. Supercritical CO2 Power Cycles: Design Considerations for Concentratin...

    Office of Scientific and Technical Information (OSTI)

    for Concentrating Solar Power Citation Details In-Document Search Title: Supercritical CO2 Power Cycles: Design Considerations for Concentrating Solar Power A comparison of ...

  6. NREL Updates National Solar Radiation Database - News Releases | NREL

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

    Updates National Solar Radiation Database May 25, 2007 The Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) and collaborators have updated the National Solar Radiation Database, a planning tool that provides critical information about the amount of solar energy that is available at any given location. The database is widely used by solar system designers, building architects and engineers, renewable energy analysts and others to plan, size and site solar energy systems.

  7. Solar Access to Public Capital | Department of Energy

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

    Solar Access to Public Capital Solar Access to Public Capital The Solar Access to Public Capital (SAPC) working group has developed standard residential lease and commercial power purchase agreement (PPA) contracts available for use by solar developers, customers, and third-party finance providers. These documents are designed to improve consumer transparency, reduce transaction costs in the solar asset contracting process, and facilitate the pooling of associated cash flows so that they may be

  8. A Guide to Community Solar | Department of Energy

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

    A Guide to Community Solar A Guide to Community Solar This guide is designed as a resource for those who want to develop community solar projects, from community organizers or solar energy advocates to government officials or utility managers. By exploring the range of incentives and policies while providing examples of operational community solar projects, this guide helps communities to plan and implement successful local energy projects. This guide also highlights some policy best practices

  9. Basic Research Needs for Solar Energy Utulization | Department of Energy

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

    Needs for Solar Energy Utulization Basic Research Needs for Solar Energy Utulization Report of the basic energy sciences workshop on solar utulization. April 18-21, 2005. BasicResearchNeedsforSolarEnergyUtulization.pdf (6.46 MB) More Documents & Publications Utilizing Nature's Designs for Solar Energy Conversion Proceedings of the 1998 U.S. DOE Hydrogen Program Review: April 28-30, 1998 Alexandria, Virginia: Volume I Proceedings of the 2001 U.S. DOE Hydrogen Program Review

  10. VIDEO: Watch the Solar Decathlon 2013 Google+ Hangout | Department of

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

    Energy Watch the Solar Decathlon 2013 Google+ Hangout VIDEO: Watch the Solar Decathlon 2013 Google+ Hangout September 19, 2013 - 2:26pm Addthis Miss the Solar Decathlon 2013 Google+ Hangout? Watch a recording of it above. Rebecca Matulka Rebecca Matulka Former Digital Communications Specialist, Office of Public Affairs For two years, collegiate teams from around the world have been designing and building energy-efficient solar-powered houses for the U.S. Department of Energy Solar Decathlon

  11. Solar Powering Your Community: A Guide for Local Governments; Second Edition

    SciTech Connect

    Not Available

    2011-01-01

    DOE designed this guide "Solar Powering Your Community: A Guide for Local Governments" to assist local government officials and stakeholders in designing and implementing strategic local solar plans. The 2011 edition contains the most recent lessons and successes from the 25 Solar America Cities and other communities promoting solar energy. Because DOE recognizes that there is no one path to solar market development, this guide introduces a range of policy and program options that can help a community build a local solar infrastructure.

  12. Solar Parking Structure in California

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features the photovoltaic (PV) system at the Cal Expo in Sacramento, California, that was "made for the shade," but it does much more. Installed in September 2000, the 540-kilowatt PV system produces enough energy to power about 180 homes. In addition, the solar arrays serve as an oasis of shaded parking for 1,000 cars in a desert of scorching blacktop. The project was designed and built by Kyocera Solar/Utility Power Group for the Sacramento Municipal Utility District (SMUD). At the time, this was the largest parking lot solar system in the world today. Cal Expo is the site of many events, including the California State Fair.

  13. Solar cogeneration for copper smelting

    SciTech Connect

    Curto, P.; Gillespie, A.

    1981-01-01

    Work is reported on designing a system for solar repowering of a cogenerating flash smelting furnace that produces copper and sulfuric acid. Smelter energy requirements are listed and the proposed project is described. Several modifications to existing equipment and additional investment in the plant are listed that are necessary as a result of the solar power system improvement. Expected enhancements of the smelting process performance are discussed and the economics of the project are examined. (LEW)

  14. Conservation and solar: working together

    SciTech Connect

    Balcomb, J.D.

    1980-01-01

    A methodology is developed for optimally allocating resources between conservation and solar strategies in building design. Formulas are presented for a constrained optimum in which the initial investment is limited. A global optimum procedure is also described in which life-cycle cost is minimized. The procedure is amenable to hand analysis if tables are available which give the Solar Savings Fraction as a function of the Load Collector Ratio for the locality. A numerical example is given.

  15. Bisfuel Logo | Center for Bio-Inspired Solar Fuel Production

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

    BISfuel is abbreviation of Bio-Inspired Solar Fuels BIS is a prefix or suffix designating the second instance of a thing, which symbolizes bio-inspired solar fuels as an artificial ...

  16. Light Trapping, Absorption and Solar Energy Harvesting by Artificial Materials

    SciTech Connect

    John, Sajeev

    2014-08-15

    We provide designs of thin-film solar cells utilizing optimized photonic-crystal light-trapping and numerical simulations of their solar-to-electrical power conversion efficiencies.

  17. U.S. Department of Energy Solar Decathlon 2015

    Energy.gov [DOE]

    The U.S. Department of Energy Solar Decathlon challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive.

  18. Solar Energy for Africa SEFA | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Product: Involved in the sales of solar and wind products, design installation and maintenance. References: Solar Energy for Africa (SEFA)1 This article is a stub. You can help...

  19. Tips: Passive Solar Heating and Cooling | Department of Energy

    Energy.gov [DOE] (indexed site)

    Passive Solar Heating and Cooling Using passive solar design to heat and cool your home can be both environmentally friendly and cost effective. In many cases, your heating costs...

  20. Model Car Race, Building Competition Illuminate Solar Energy...

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

    Students in the Solar Model Building Competition use a K'NEX Energy System Kit Model, which contains 1,082 pieces, two motors and two solar panels. With it, they must design and ...

  1. Solar Water Heating with Low-Cost Plastic Systems (Brochure)

    SciTech Connect

    Not Available

    2012-01-01

    Newly developed solar water heating technology can help Federal agencies cost effectively meet the EISA requirements for solar water heating in new construction and major renovations. This document provides design considerations, application, economics, and maintenance information and resources.

  2. Students to Race Solar-Powered Model Cars

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

    Colorado on Saturday will race model solar cars designed to tap into energy from the sun. ... Each team starts with a motor and a silicon solar cell, which converts light into ...

  3. Solar heat receiver

    DOEpatents

    Hunt, Arlon J.; Hansen, Leif J.; Evans, David B.

    1985-01-01

    A receiver for converting solar energy to heat a gas to temperatures from 700.degree.-900.degree. C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

  4. Solar heat receiver

    DOEpatents

    Hunt, A.J.; Hansen, L.J.; Evans, D.B.

    1982-09-29

    A receiver is described for converting solar energy to heat a gas to temperatures from 700 to 900/sup 0/C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

  5. Toolkit for Installing Solar on K-12 Schools

    Energy.gov [DOE]

    Following the release of The Solar Foundation's Brighter Future: A Study on Solar in U.S. Schools under the Solar Outreach Partnership, the organization has been working to help more K-12 public schools go solar through its technical assistance program. As part of this effort, they developed the Toolkit for Installing Solar on K-12 Schools to compile new and existing resources, designed to provide public school officials with a starting point for pursuing their own solar projects. Hands-on guidance in putting the ideas contained within this toolkit into action is available through the SolarOPs Technical Assistance program.

  6. Solar resources

    SciTech Connect

    Hulstrom, R.L.

    1989-01-01

    Following the 1973 oil embargo, the US government initiated a program to develop and use solar energy. This led to individual programs devoted to developing various solar radiation energy conversion technologies: photovoltaic and solar-thermal conversion devices. Nearly concurrently, it was recognized that understanding the available insolation resources was required to develop and deploy solar energy devices and systems. It was also recognized that the insolation information available at that time (1973) was not adequate to meet the specific needs of the solar energy community. Federal efforts were initiated and conducted to produce new and more extensive information and data. The primary federal agencies that undertook such efforts were the Department of Energy (DOE) and the National Oceanic and Atmospheric Administration (NOAA). NOAA's efforts included activities performed by the National Weather Service (NWS) and the National Climatic Data Center (NCDC). This book has two man objectives: to report some of the insolation energy data, information, and products produced by the federal efforts and to describe how they were produced. Products include data bases, models and algorithms, monitoring networks, instrumentation, and scientific techniques. The scope of products and results does not include all those produced by past federal efforts. The book's scope and subject matter are oriented to support the intent and purpose of the other volumes in this series. In some cases, other pertinent material is presented to provide a more complete coverage of a given subject. 385 refs., 149 figs., 50 tabs.

  7. Solar Powering Your Community: A Guide for Local Governments (Book)

    SciTech Connect

    2011-01-01

    DOE designed this guide—Solar Powering Your Community: A Guide for Local Governments—to assist local government officials and stakeholders in designing and implementing strategic local solar plans. The 2011 edition contains the most recent lessons and successes from the 25 Solar America Cities and other communities promoting solar energy. Because DOE recognizes that there is no one path to solar market development, this guide introduces a range of policy and program options that can help a community build a local solar infrastructure.

  8. Sioux Students Kindle Solar Knowledge | Department of Energy

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

    Sioux Students Kindle Solar Knowledge Sioux Students Kindle Solar Knowledge July 24, 2013 - 11:30am Addthis Students and instructors at Oglala Lakota College designed, connected and built a mobile solar energy system over the course of two days. | Photo courtesy of Oglala Lakota College. Students and instructors at Oglala Lakota College designed, connected and built a mobile solar energy system over the course of two days. | Photo courtesy of Oglala Lakota College. Minh Le Minh Le Deputy

  9. 2012 News | Solar | NREL

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

    NREL and Solar Junction outsmart the solar spectrum and set a world record with a 44%-efficient solar cell. December 4, 2012 NREL Teams with Berkeley Lab to Analyze Solar Pricing ...

  10. Solar Equipment Certification

    Energy.gov [DOE]

    Under the Solar Energy Standards Act of 1976, the Florida Solar Energy Center (FSEC) is responsible for certifying all solar equipment sold in Florida. A manufacturer who wishes to have their solar...

  11. Solar ADEPT: Efficient Solar Energy Systems

    SciTech Connect

    2011-01-01

    Solar ADEPT Project: The 7 projects that make up ARPA-E's Solar ADEPT program, short for 'Solar Agile Delivery of Electrical Power Technology,' aim to improve the performance of photovoltaic (PV) solar energy systems, which convert the sun's rays into electricity. Solar ADEPT projects are integrating advanced electrical components into PV systems to make the process of converting solar energy to electricity more efficient.

  12. Creating solar media nets solar tools, publicity

    SciTech Connect

    Brewer, B.

    1980-01-01

    The utilization of locally produced solar tool to gain more access to commercial media is discussed. Central is a strategy of (1) giving commercial media something to report, (2) helping educate the media, and (3) simultaneously impacting that portion of the public which is likely to be most interested. Methods for reaching several target audiences include a Solar Calendar, a Passive Solar Film, a local Solar Directory, a local Solar Information Center, an Emergency Coolth brochure and a Conservation/Solar Retrofit Guide.

  13. Concentrating Solar Power

    SciTech Connect

    Not Available

    2008-09-01

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

  14. Solar Electric Propulsion

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Sciences Applications National Solar Thermal Test Facility Nuclear Energy ...

  15. Concentrating Solar Power (CSP)

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Sciences Applications National Solar Thermal Test Facility Nuclear Energy ...

  16. Concentrating Solar Power

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Sciences Applications National Solar Thermal Test Facility Nuclear Energy ...

  17. VISUAL-SOLAR

    Energy Science and Technology Software Center

    003661IBMPC00 Visual-SOLAR: Modeling and Visualization of Solar Radiation Potential on Individual Building Rooftops

  18. Solar Energy Technologies Program: Concentrating Solar Power

    SciTech Connect

    2009-10-26

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

  19. Solar Easements & Local Option Solar Rights Laws

    Energy.gov [DOE]

    Utah's solar easement provision is similar to easement provisions in many other states. Parties may voluntarily enter into written solar easement contracts that are enforceable by law. An...

  20. Sunshot Initiative High Penetration Solar Portal

    DOE Data Explorer

    The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost-competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread large-scale adoption of this renewable energy and restore U.S. leadership in the global clean energy race. The High Penetration Solar Portal was created as a resource to aggregate the most relevant and timely information related to high penetration solar scenarios and integrating solar into the grid. The site is designed so that utilities, grant awardees, regulators, researchers, and other solar professionals can easily share data, case studies, lessons learned, and demonstration project findings. [from https://solarhighpen.energy.gov/about_the_high_penetration_solar_portal