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Sample records for desert sunlight solar

  1. Desert Sunlight Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Sunlight Solar Power Plant Facility Desert Sunlight Sector Solar Facility Type Photovoltaic Developer First Solar Location Desert Center, California Coordinates 33.7541038,...

  2. EIS-0448: First Solar Desert Sunlight Project in Riverside County...

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

    8: First Solar Desert Sunlight Project in Riverside County, CA EIS-0448: First Solar Desert Sunlight Project in Riverside County, CA June 24, 2011 EIS-0448: Final Environmental ...

  3. EIS-0448: First Solar Desert Sunlight Project in Riverside County, CA |

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

    Department of Energy 8: First Solar Desert Sunlight Project in Riverside County, CA EIS-0448: First Solar Desert Sunlight Project in Riverside County, CA June 24, 2011 EIS-0448: Final Environmental Impact Statement Desert Sunlight Solar Farm Project, California June 24, 2011 EIS-0448: Notice of Adoption of an Environmental Impact Statement First Solar Desert Sunlight Solar Farm Project October 6, 2011 EIS-0448: Record of Decision Issuance of a Loan Guarantee to First Solar, Inc., for the

  4. DESERT SUNLIGHT | Department of Energy

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

    DESERT SUNLIGHT DESERT SUNLIGHT DESERT SUNLIGHT DESERT SUNLIGHT PROJECT SUMMARY In September 2011, the Department of Energy issued two partial loan guarantees of $1.5 billion in total under the Financial Institution Partnership Program (FIPP) to finance Desert Sunlight, a 550-MW photovoltaic (PV) solar generation plant. The facility is jointly owned by NextEra, General Electric, and Sumitomo of America and reached full commercial operations in January 2015. Desert Sunlight is one of the largest

  5. DESERT SUNLIGHT | Department of Energy

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

    DESERT SUNLIGHT DESERT SUNLIGHT DOE-LPO_Project-Posters_PV_Desert-Sunlight.pdf (249.32 KB) More Documents & Publications Hearing Before the House Natural Resources Subcommittee on Oversight and Investigations DESERT SUNLIGHT Powering New Markets: Utility-scale Photovoltaic Solar GENESIS

  6. EIS-0448: Department of Energy Loan Guarantee to First Solar for the Proposed Desert Sunlight Solar Farm Project, California

    Broader source: Energy.gov [DOE]

    First Solar Desert Sunlight Solar Farm (DSSF) Project, proposes to develop a 550-megawatt photovoltaic solar project and proposes to facilitate the construction and operation of the Red Bluff Substation, California Desert Conservation Area (CDCA) Plan, Riverside County, California.

  7. LPO5-002-Proj-Poster-PV-DesertSunlight

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

    DESERT SUNLIGHT By working with 14 commercial lending partners, Desert Sunlight helped pave the way for future utility-scale photovoltaic solar deals. INVESTING in AMERICAN ENERGY OWNERS NextEra Energy, General Electric & Sumitomo of America LOCATION Riverside County, California LOAN AMOUNT $1.5 Billion ISSUANCE DATE September 2011 GENERATION CAPACITY 550 MW PROJECTED ANNUAL GENERATION 1,060,000 MWh CLIMATE BENEFIT 614,000 Metric Tons of C0 2 Prevented Annually

  8. Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch

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

    Utility-scale PV Solar Market | Department of Energy Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market February 9, 2015 - 12:01am Addthis In 2011, LPO issued loan guarantees to the first 5 PV projects larger than 100 MW in the U.S. An additional 17 projects have been financed since without loan guarantees. In 2011, LPO issued loan

  9. Sunlight Solar Energy | Open Energy Information

    Open Energy Info (EERE)

    Energy Jump to: navigation, search Name: Sunlight Solar Energy Address: 4 Oxford Road Place: Milford, Connecticut Zip: 06460 Region: Northeast - NY NJ CT PA Area Sector: Solar...

  10. Desert Sunlight | OpenEI Community

    Open Energy Info (EERE)

    this new 550 MW PV Solar Plant in Southern California is the latest feather in DOE's cap. Read more about it on Breaking Energy or checkout the info page from the California...

  11. Nanocrystal Solar Cells Squeeze Extra Juice Out of Sunlight ...

    Office of Science (SC) Website

    Nanocrystal Solar Cells Squeeze Extra Juice Out of Sunlight Basic Energy Sciences (BES) ... More Information 12.01.11 Nanocrystal Solar Cells Squeeze Extra Juice Out of Sunlight ...

  12. Desert Solar | Open Energy Information

    Open Energy Info (EERE)

    search Name: Desert Solar Place: Apple Valley, California Zip: 92308 Sector: Renewable Energy, Solar Product: Selling and installing commercial renewable energy projects, mainly...

  13. Sunlight Solar Energy Inc SSE | Open Energy Information

    Open Energy Info (EERE)

    Solar Energy Inc SSE Jump to: navigation, search Name: Sunlight Solar Energy, Inc (SSE) Place: Bend, Oregon Zip: 97701 Sector: Solar Product: Bend (OR)-based solar integration firm...

  14. Desert Sunlight is Shining Example of How DOE Loan Guarantees...

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

    solar power that was installed in all of 2008. Project owners NextEra Energy, GE, and Sumitomo of America, along with technology provider First Solar, gathered this morning in...

  15. Desert Sunlight goes online! | OpenEI Community

    Open Energy Info (EERE)

    this new 550 MW PV Solar Plant in Southern California is the latest feather in DOE's cap. Read more about it on Breaking Energy or checkout the info page from the California...

  16. Desert Sunlight is Shining Example of How DOE Loan Guarantees...

    Energy Savers [EERE]

    ... sell electricity to the grid the same as a coal, nuclear, or natural gas power plant. ... The rapid growth of solar is lowering costs for consumers, creating jobs, and cutting ...

  17. Solar | OpenEI Community

    Open Energy Info (EERE)

    Solar Home Jweers's picture Submitted by Jweers(88) Contributor 10 February, 2015 - 12:22 Desert Sunlight goes online 550 MW Desert Sunlight DOE power plant PV Solar utility scale...

  18. Efficient Solar Concentrators: Affordable Energy from Water and Sunlight

    SciTech Connect (OSTI)

    2010-01-01

    Broad Funding Opportunity Announcement Project: Teledyne is developing a liquid prism panel that tracks the position of the sun to help efficiently concentrate its light onto a solar cell to produce power. Typically, solar tracking devices have bulky and expensive mechanical moving parts that require a lot of power and are often unreliable. Teledynes liquid prism panel has no bulky and heavy supporting partsinstead it relies on electrowetting. Electrowetting is a process where an electric field is applied to the liquid to control the angle at which it meets the sunlight above and to control the angle of the sunlight to the focusing lensthe more direct the angle to the focusing lens, the more efficiently the light can be concentrated to solar panels and converted into electricity. This allows the prism to be tuned like a radio to track the sun across the sky and steer sunlight into the solar cell without any moving mechanical parts. This process uses very little power and requires no expensive supporting hardware or moving parts, enabling efficient and quiet rooftop operation for integration into buildings.

  19. Energy Department Finalizes Loan Guarantee to Support California Solar

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

    Generation Project | Department of Energy to Support California Solar Generation Project Energy Department Finalizes Loan Guarantee to Support California Solar Generation Project September 30, 2011 - 3:15pm Addthis Washington, D.C. -- U.S. Energy Secretary Steven Chu today announced that the Department finalized partial loan guarantees of $1.46 billion in loans to Desert Sunlight 250, LLC and Desert Sunlight 300, LLC to support the Desert Sunlight Project. The 550 MW project is expected to

  20. Sunlight Direct | Open Energy Information

    Open Energy Info (EERE)

    Sector: Solar Product: Developed a system that tracks and concentrates solar energy for distributed power generation Website: www.sunlight-direct.com Coordinates: 33.0013938,...

  1. Fuels From Sunlight Hub | Department of Energy

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

    Fuels From Sunlight Hub Fuels From Sunlight Hub August 1, 2010 - 4:11pm Addthis Researchers from across disciplines are working together to create energy and fuels directly from sunlight, and create a process that's economically viable. Researchers from across disciplines are working together to create energy and fuels directly from sunlight, and create a process that's economically viable. The Solar Energy-to-Fuels Conversion Challenge Designing highly efficient, non-biological, energy

  2. Cumulus Clouds and Reflected Sunlight

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

    Cumulus Clouds and Reflected Sunlight from Landsat ETM+ G. Wen and L. Oreopoulos National Aeronautics and Space Administration Goddard Space Flight Center University of Maryland Baltimore County Joint Center of Earth System Technology Greenbelt, Maryland R. F. Cahalan and S. C. Tsay National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland Introduction Cumulus clouds attenuate solar radiation casting shows on the ground. Cumulus clouds can also enhance solar

  3. SunLight Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: SunLight Energy Systems Address: 955 Manchester Ave., SW Place: North Lawrence, Ohio Zip: 44666-9438 Sector: Solar Product: Retailer - Siemens...

  4. Ultra-accelerated natural sunlight exposure testing

    DOE Patents [OSTI]

    Jorgensen, Gary J.; Bingham, Carl; Goggin, Rita; Lewandowski, Allan A.; Netter, Judy C.

    2000-06-13

    Process and apparatus for providing ultra accelerated natural sunlight exposure testing of samples under controlled weathering without introducing unrealistic failure mechanisms in exposed materials and without breaking reciprocity relationships between flux exposure levels and cumulative dose that includes multiple concurrent levels of temperature and relative humidity at high levels of natural sunlight comprising: a) concentrating solar flux uniformly; b) directing the controlled uniform sunlight onto sample materials in a chamber enclosing multiple concurrent levels of temperature and relative humidity to allow the sample materials to be subjected to accelerated irradiance exposure factors for a sufficient period of time in days to provide a corresponding time of about at least a years worth of representative weathering of the sample materials.

  5. Energy from Water and Sunlight: Affordable Energy from Water and Sunlight

    SciTech Connect (OSTI)

    2010-01-01

    Broad Funding Opportunity Announcement Project: Sun Catalytix is developing wireless energy-storage devices that convert sunlight and water into renewable fuel. Learning from nature, one such device mimics the ability of a tree leaf to convert sunlight into storable energy. It is comprised of a silicon solar cell coated with catalytic materials, which help speed up the energy conversion process. When this cell is placed in a container of water and exposed to sunlight, it splits the water into bubbles of oxygen and hydrogen. The hydrogen and oxygen can later be recombined to create electricity, when the sun goes down for example. The Sun Catalytix device is novel in many ways: it consists primarily of low-cost, earth-abundant materials where other attempts have required more expensive materials like platinum. Its operating conditions also facilitate the use of less costly construction materials, whereas other efforts have required extremely corrosive conditions.

  6. Solar Water Splitting: Putting an Extra "Eye" on Surface Reactions...

    Office of Science (SC) Website

    Solar Water Splitting: Putting an Extra "Eye" on Surface Reactions that Store Sunlight as ... Solar Water Splitting: Putting an Extra "Eye" on Surface Reactions that Store Sunlight as ...

  7. Sunlight Photonics | Open Energy Information

    Open Energy Info (EERE)

    Photonics Place: South Plainfield, New Jersey Zip: 7080 Product: New Jersey-based stealth thin-film PV maker. References: Sunlight Photonics1 This article is a stub. You can help...

  8. Sunlight + Water = Tomorrow's Energy

    SciTech Connect (OSTI)

    Jones, Anne Katherine

    2013-07-18

    Representing the Center for Bio-Inspired Solar Fuel Production (BISfuel), this document is one of the entries in the Ten Hundred and One Word Challenge. As part of the challenge, the 46 Energy Frontier Research Centers were invited to represent their science in images, cartoons, photos, words and original paintings, but any descriptions or words could only use the 1000 most commonly used words in the English language, with the addition of one word important to each of the EFRCs and the mission of DOE: energy. The mission of BISfuel is to construct a complete system for solar-powered production of hydrogen fuel via water splitting; design principles are drawn from the fundamental concepts that underlie photosynthetic energy conversion.

  9. Solar Photovoltaic Technology Basics | Department of Energy

    Energy Savers [EERE]

    Solar Solar Photovoltaic Technology Basics Solar Photovoltaic Technology Basics August ... Photovoltaic (PV) materials and devices convert sunlight into electrical energy. A single ...

  10. Solar Photovoltaic Technology Basics | NREL

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

    Solar Photovoltaic Technology Basics Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process ...

  11. Solar Easements | Department of Energy

    Office of Environmental Management (EM)

    Maine Program Type SolarWind Access Policy Summary Maine allows for the creation of easements to ensure access to direct sunlight. Instruments creating a solar easement may ...

  12. YBR Solar | Open Energy Information

    Open Energy Info (EERE)

    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:...

  13. Nationwide Solar Funding | Open Energy Information

    Open Energy Info (EERE)

    Solar Funding Jump to: navigation, search Name: Nationwide Solar Funding Place: Palm Desert, California Zip: 92211 Sector: Solar Product: Provides funding for small (residential...

  14. The Next Generation of Solar Panels | Department of Energy

    Energy Savers [EERE]

    Scientists just got one step closer to the next generation of solar panels. Today's solar panels convert sunlight to electricity using silicon crystal chemistry. Future solar ...

  15. Sunlight Group Inc | Open Energy Information

    Open Energy Info (EERE)

    Inc Jump to: navigation, search Name: Sunlight Group Inc Place: New Jersey Zip: 7080 Product: A specialist wafer manufacturer with production capacity in China. References:...

  16. ARM - Lesson Plans: Sunlight and Evaporation

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

    Objective The objective is to demonstrate that the energy from sunlight can evaporate ... Different wave lengths have different amount of energy. The bulk of the sun's energy ...

  17. Desert Peak EGS Project

    Broader source: Energy.gov [DOE]

    Desert Peak EGS Project presentation at the April 2013 peer review meeting held in Denver, Colorado.

  18. Solar Easements | Department of Energy

    Office of Environmental Management (EM)

    The law allows a property owner to obtain a solar easement from another property owner for the purpose of ensuring adequate exposure of a solar energy system to sunlight. A solar ...

  19. NREL: News - NREL Researchers Use Sunlight to Power Laser

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

    Researchers Use Sunlight to Power Laser Golden, Colo., December 14, 1995 -- Commercial ... University of Chicago powered a laser with concentrated sunlight instead of electricity. ...

  20. Fuzhou Sunlight: Noncompliance Determination (2010-SE-1402)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to Fuzhou Sunlight Lighting Electrical Appliance Co., Ltd. finding that a variety of models of incandescent reflector lamps do not comport with the energy conservation standards.

  1. Solar Easements | Department of Energy

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

    solar easements for the purpose of protecting and maintaining proper access to sunlight. Easements must be executed in writing and are subject to the same conveyance and...

  2. Solar Innovator | Alta Devices

    ScienceCinema (OSTI)

    Mattos, Laila; Le, Minh

    2013-05-29

    Selected to participate in the Energy Department's SunShot Initiative, Alta Devices produces solar cells that convert sunlight into electricity at world record-breaking levels of efficiency. Through its innovative solar technology Alta is helping bring down the cost of solar. Learn more about the Energy Department's efforts to advance solar technology at energy.gov/solar .

  3. NREL Compares State Solar Policies to Determine Equation for...

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

    Non-policy issues that have implications for a solar market, such as the amount of sunlight available for potential solar generation, community interest in renewable energy, and ...

  4. Photovoltaic at Hollywood and Desert Breeze Recreational Centers

    SciTech Connect (OSTI)

    Ammerman, Shane

    2015-09-24

    Executive Summary Renewable Energy Initiatives for Clark County Parks and Recreation Solar Project DOE grant # DE-EE0003180 In accordance with the goals of the Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy for promoting solar energy as clean, carbon-free and cost-effective, the County believed that a recreational center was an ideal place to promote solar energy technologies to the public. This project included the construction of solar electricity generation facilities (40kW) at two Clark County facility sites, Desert Breeze Recreational Center and Hollywood Recreational Center, with educational kiosks and Green Boxes for classroom instruction. The major objectives and goals of this Solar Project include demonstration of state of the art technologies for the generation of electricity from solar technology and the creation of an informative and educational tool in regards to the benefits and process of generating alternative energy. Clark County partnered with Anne Johnson (design architect/consultant), Affiliated Engineers Inc. (AEI), Desert Research Institute (DRI), and Morse Electric. The latest photovoltaic technologies were used in the project to help create the greatest expected energy savings for60443 each recreational center. This coupled with the data created from the monitoring system will help Clark County and NREL further understand the real time outputs from the system. The educational portion created with AEI and DRI incorporates material for all ages with a focus on K - 12. The AEI component is an animated story telling the fundamentals of how sunlight is turned into electricity and DRI‘s creation of Solar Green Boxes brings environmental education into the classroom. In addition to the educational component for the public, the energy that is created through the photovoltaic system also translates into saved money and health benefits for the general public. This project has helped Clark County to further add to its own

  5. Solar Dish/Engine Power Plant Illustration

    Office of Energy Efficiency and Renewable Energy (EERE)

    This graphic illustrates a parabolic dish of mirrors directs and concentrates sunlight onto a central engine that produces electricity. The solar concentrator, or dish, gathers the solar energy coming directly from the sun. The resulting beam of concentrated sunlight is reflected onto a thermal receiver that collects the solar heat. The dish is mounted on a structure that tracks the sun continuously throughout the day to reflect the highest percentage of sunlight possible onto the thermal receiver.

  6. Solar Easements | Department of Energy

    Office of Environmental Management (EM)

    Tennessee Program Type SolarWind Access Policy Summary Tennessee law allows for the creation of easements for the purpose of ensuring access to direct sunlight for solar energy ...

  7. Smart Solar Rooftops - Energy Innovation Portal

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

    Technology Marketing Summary Solar panels, or photovoltaic panels, use photovoltaic cells to create energy. These cells create direct current through absorption of sunlight's ...

  8. Award-Winning Etching Process Cuts Solar Cell Costs

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

    Award-Winning Etching Process Cuts Solar Cell Costs Optimizing solar-cell technology can be a complex job, requiring expertise in material science, physics, and optics to convert as much sunlight as possible into electricity. But despite this complexity, a simple fact is key to making a high-performance solar cell: any sunlight reflected off the cell can't possibly be converted into electricity. Manufacturers have tried to minimize the reflection of sunlight off of solar cells by first

  9. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt ...

  10. UNLV DESERT SUNRISE DESERT SUNRISE HOME Project Summary

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

    UNLV DESERT SUNRISE DESERT SUNRISE HOME Project Summary Desert Sunrise is a net-zero site energy home that combines the culture and traditions of the Moapa Band of Paiutes of Southern Nevada with contemporary, evidence-based design practices to produce a safe, comfortable and energy efficient home in the heart of the Mojave Desert. Relevance of Project to the Goals of the Competition Desert Sunrise was designed using a rigorous research approach to understand how advanced building technologies

  11. Concentrating Solar Power

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

    Concentrating Solar Power Concentrating solar power (CSP) technologies use mirrors to focus and concentrate sunlight onto a receiver, from which a heat transfer fluid carries the intense thermal energy to a power block to generate electricity. A distinguishing feature of CSP is its ability to incorporate simple, efficient, and cost-effective thermal energy storage by virtue of converting sunlight to heat as an intermediate step to generating electricity. In addition to providing dispatchable

  12. Desert Peak Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Desert Peak Geothermal Area (Redirected from Desert Peak Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Desert Peak Geothermal Area Contents 1 Area Overview 2...

  13. Holographic technology could increase solar efficiency

    Broader source: Energy.gov [DOE]

    The Torrance, Calif.-based company is working on a product that could help solar energy producers get both kinds of energy out of the same sunlight -- potentially increasing a system’s return. Using holographic thin-film, Luminit is working on a solar cogeneration system that also tracks sunlight across the sky without movable parts.

  14. How Solar Works | Department of Energy

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

    Every four minutes, another American home or business goes solar, but how do solar panels turn sunlight into energy? We'll answer that question, while exploring other topics like ...

  15. Harvesting Sunlight with Tadpoles and Drumsticks | The Ames Laboratory

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

    Harvesting Sunlight with Tadpoles and Drumsticks Scientists have discovered a method to fine-tune the shapes of nanorod photocatalyst particles. These materials accelerate...

  16. Science on the Hill: Turning windows into solar panels

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

    Harvesting that light with photovoltaic cells, which convert sunlight into electricity, at a cost-competitive price, however, has proved elusive. While the price of solar cells ...

  17. Concentrating Photovoltaics at the Solar Technology Acceleration Center

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph shows concentrating photovoltaic (CPV) systems that use Fresnel lenses to concentrate sunlight onto solar cells. Researchers from the National Renewable Energy Laboratory and Japan...

  18. Biomass and Solar Technologies Lauded - News Releases | NREL

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

    chemicals, and a thin-film solar cell that produces electricity directly from sunlight, which has greater efficiency, and is lighter weight and more flexible than previous devices. ...

  19. Solar Energy Systems - Research - Systems Analysis - Smart Grid...

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

    Sunlight Systems Analysis Solar Fuels Research: Systems Analysis Smart grid photovoltaic Systems analysis photovoltaic A team of energy and grid experts from Agronne,...

  20. Center for Advanced Solar Photophysics | News

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

    EFRC News & Press Releases Department of Energy Highlight: Turning Windows into Solar Panels LANL Press Release: Capture sunlight with your windows R&D Magazine: Capture sunlight with your windows Phys.org: Quantum dot solar windows go non-toxic, colorless, with record efficiency Laser Focus World: Non-toxic quantum dots promise efficient LSC-based building-integrated solar windows and lighting IEEE Spectrum: A Clearer Outlook for Quantum Dot-Enabled Solar Windows LANL Press Release:

  1. U.S. Departments of Energy and Interior Announce Site for Solar...

    Office of Environmental Management (EM)

    Energy and Interior Announce Site for Solar Energy Demonstration Projects in the Nevada Desert U.S. Departments of Energy and Interior Announce Site for Solar Energy Demonstration ...

  2. Solar and Wind Easements & Rights Laws & Local Option Solar Rights Law

    Broader source: Energy.gov [DOE]

    Oregon's solar and wind easements provisions allow property owners to create solar and wind easements for the purpose of protecting and maintaining proper access to sunlight and wind. Easements...

  3. Concentrating Solar Power Projects - Rice Solar Energy Project |

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

    Concentrating Solar Power | NREL Rice Solar Energy Project This page provides information on Rice Solar Energy Project, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. Status Date: January 30, 2013 Project Overview Project Name: Rice Solar Energy Project (RSEP) Country: United States Location: Rice, California (Mojave Desert, near Blythe) Owner(s): SolarReserve's Rice Solar Energy, LLC (100%) Technology: Power tower

  4. OpenEI Community - Solar

    Open Energy Info (EERE)

    communityblogdesert-sunlight-goes-online

    Dedicated on Monday, this new 550 MW PV Solar Plant in Southern California is the latest feather in DOE's cap.

  5. Solar thermoelectric generator

    DOE Patents [OSTI]

    Toberer, Eric S.; Baranowski, Lauryn L.; Warren, Emily L.

    2016-05-03

    Solar thermoelectric generators (STEGs) are solid state heat engines that generate electricity from concentrated sunlight. A novel detailed balance model for STEGs is provided and applied to both state-of-the-art and idealized materials. STEGs can produce electricity by using sunlight to heat one side of a thermoelectric generator. While concentrated sunlight can be used to achieve extremely high temperatures (and thus improved generator efficiency), the solar absorber also emits a significant amount of black body radiation. This emitted light is the dominant loss mechanism in these generators. In this invention, we propose a solution to this problem that eliminates virtually all of the emitted black body radiation. This enables solar thermoelectric generators to operate at higher efficiency and achieve said efficient with lower levels of optical concentration. The solution is suitable for both single and dual axis solar thermoelectric generators.

  6. Green Button Applications | OpenEI Community

    Open Energy Info (EERE)

    Solar Type Term Title Author Replies Last Post sort icon Blog entry Solar Desert Sunlight goes online Jweers 10 Feb 2015 - 12:22...

  7. NREL: Solar Research - News Release Archives

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

    issusing a Request for Proposal (RFP) for a utility-scale concentrating solar power plant. ... from a 553-megawatt solar thermal power plant to be located in California's Mojave Desert. ...

  8. Study reveals urban smoke absorbs sunlight, exacerbating climate warming

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

    Study reveals urban smoke absorbs sunlight Study reveals urban smoke absorbs sunlight, exacerbating climate warming Cloaking urban areas and wildfire zones, tiny smoke particles suspended in the atmosphere have a sizeable effect on our climate. September 30, 2015 A new study by a science team led by Los Alamos National Laboratory stresses the importance of understanding mixed black and brown carbon in smoke emissions for climate models. The particulates found in urban smoke are especially prone

  9. City of Kansas City- Solar Easements and Geothermal Access

    Broader source: Energy.gov [DOE]

    Owners of accessory solar energy systems are responsible for negotiating with other property owners for any desired solar easements to protect access to sunlight. An easements must be recorded in...

  10. Desert Wind Power | Open Energy Information

    Open Energy Info (EERE)

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

  11. DOE - NNSA/NFO -- Operation Clean Desert

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

    ZONE > Operation Clean Desert NNSANFO Language Options U.S. DOENNSA - Nevada Field Office Operation Clean Desert FUN FOR ALL AGES Dr. Proton Graphic Adam - Smiling Operation ...

  12. EERE Success Story-Reaching New Limits with Solar Storage | Department of

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

    Energy Reaching New Limits with Solar Storage EERE Success Story-Reaching New Limits with Solar Storage February 25, 2016 - 10:49am Addthis Sunlight reflected from heliostats is shining directly on the particle receiver, which is currently being tested on top of the solar tower at the National Solar Thermal Test Facility. Sunlight reflected from heliostats is shining directly on the particle receiver, which is currently being tested on top of the solar tower at the National Solar Thermal

  13. World’s Largest Solar Energy Project Heads to Mojave

    Broader source: Energy.gov [DOE]

    A California company will harness the Mojave Desert sunshine to create the world’s largest solar energy system by the end of 2013.

  14. Solar

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

  15. Solar

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

  16. Solar

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

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

  17. Mapping Opportunities for U.S. Solar Exports to India | Department...

    Office of Environmental Management (EM)

    India is a nation with an abundance of sunlight and an emerging market for solar energy technology. To facilitate further development of that market, the Energy Department's ...

  18. Concentrating Solar Power | NREL

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

    SolarReserve's Crescent Dunes CSP Project, near Tonopah, Nevada, has an electricity generating capacity of 110 megawatts. (credit: SolarReserve) Researchers at the National Renewable Energy Laboratory (NREL) provide scientific, engineering, and analytical expertise to help advance innovation in concentrating solar power (CSP) technologies. These technologies capture sunlight to produce heat that drives today's conventional thermoelectric generation systems or future advanced generation systems.

  19. Desert landscape irrigation

    SciTech Connect (OSTI)

    Quinones, R.

    1995-06-01

    Industrialization can take place in an arid environment if a long term, overall water management program is developed. The general rule to follow is that recharge must equal or exceed use. The main problem encountered in landscape projects is that everyone wants a lush jungle setting, tall shade trees, ferns, with a variety of floral arrangements mixed in. What we want, what we can afford, and what we get are not always the same. Vegetation that requires large quantities of water are not native to any desert. Surprisingly; there are various types of fruit trees, and vegetables that will thrive in the desert. Peaches, plums, nut trees, do well with drip irrigation as well as tomatoes. Shaded berry plans will also do well, the strawberry being one. In summary; if we match our landscape to our area, we can then design our irrigation system to maintain our landscape and grow a variety of vegetation in any arid or semiarid environment. The application of science and economics to landscaping has now come of age.

  20. Supersymmetry without the Desert

    SciTech Connect (OSTI)

    Nomura, Yasunori; Poland, David

    2006-09-26

    Naturalness of electroweak symmetry breaking in weak scale supersymmetric theories may suggest the absence of the conventional supersymmetric desert. We present a simple, realistic framework for supersymmetry in which (most of) the virtues of the supersymmetric desert are naturally reproduced without having a large energy interval above the weak scale. The successful supersymmetric prediction for the low-energy gauge couplings is reproduced due to a gauged R symmetry present in the effective theory at the weak scale. The observable sector superpotential naturally takes the form of the next-to-minimal supersymmetric standard model, but without being subject to the Landau pole constraints up to the conventional unification scale. Supersymmetry breaking masses are generated by the F-term and D-term VEVs of singlet and U(1){sub R} gauge fields, as well as by anomaly mediation, at a scale not far above the weak scale. We study the resulting pattern of supersymmetry breaking masses in detail, and find that it can be quite distinct. We construct classes of explicit models within this framework, based on higher dimensional unified theories with TeV-sized extra dimensions. A similar model based on a non-R symmetry is also presented. These models have a rich phenomenology at the TeV scale, and allow for detailed analyses of, e.g., electroweak symmetry breaking.

  1. Ultra-Accelerated Natural Sunlight Exposure Testing Facilities

    DOE Patents [OSTI]

    Lewandowski, Allan A.; Jorgensen, Gary J.

    2004-11-23

    A multi-faceted concentrator apparatus for providing ultra-accelerated natural sunlight exposure testing for sample materials under controlled weathering conditions comprising: facets that receive incident natural sunlight, transmits VIS/NIR and reflects UV/VIS onto a secondary reflector that delivers a uniform flux of UV/VIS onto a sample exposure plane located near a center of a facet array in a chamber that provide concurrent levels of temperature and/or relative humidity at high levels of up to 100.times. of natural sunlight that allow sample materials to be subjected to accelerated irradiance exposure factors for a significant period of time of about 3 to 10 days to provide a corresponding time of about at least a years worth representative weathering of sample materials.

  2. Ultra-accelerated natural sunlight exposure testing facilities

    DOE Patents [OSTI]

    Lewandowski, Allan A.; Jorgensen, Gary J.

    2003-08-12

    A multi-faceted concentrator apparatus for providing ultra-accelerated natural sunlight exposure testing for sample materials under controlled weathering conditions comprising: facets that receive incident natural sunlight, transmits VIS/NIR and reflects UV/VIS to deliver a uniform flux of UV/VIS onto a sample exposure plane located near a center of a facet array in chamber means that provide concurrent levels of temperature and/or relative humidity at high levels of up to 100.times. of natural sunlight that allow sample materials to be subjected to accelerated irradiance exposure factors for a significant period of time of about 3 to 10 days to provide a corresponding time of about at least a years worth representative weathering of sample materials.

  3. Concentrating Solar Power Projects - Palen Solar Electric Generating System

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

    | Concentrating Solar Power | NREL Palen Solar Electric Generating System This page provides information on the Palen Solar Power Project, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. Status Date: April 4, 2013 Project Overview Project Name: Palen Solar Electric Generating System Country: United States Location: Desert Center, California Owner(s): BrightSource Energy (100%) Technology: Power tower Turbine Capacity:

  4. solar

    National Nuclear Security Administration (NNSA)

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

  5. Keeping America Competitive: A Solar Manufacturing Boost In San Diego |

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

    Department of Energy A Solar Manufacturing Boost In San Diego Keeping America Competitive: A Solar Manufacturing Boost In San Diego December 19, 2012 - 4:26pm Addthis Soitec's concentrating photovoltaic modules use Fresnel lenses to concentrate sunlight 500 times and focus it onto small, high-efficiency solar cells. | Photo by Matthias Heyde, Fraunhofer Institute. Soitec's concentrating photovoltaic modules use Fresnel lenses to concentrate sunlight 500 times and focus it onto small,

  6. Photovoltaic solar cell

    DOE Patents [OSTI]

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

    2014-05-20

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

  7. Photovoltaic solar cell

    DOE Patents [OSTI]

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

    2013-11-26

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

  8. Concentrating Solar Power Basics | Department of Energy

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

    Solar » Concentrating Solar Power Basics Concentrating Solar Power Basics August 20, 2013 - 4:38pm Addthis Text Version This solar concentrator has a fixed-focus faceted dish with a concentration of about 250 suns. This system can be used for large fields connected to the utility grid, hydrogen generation, or water pumping. Credit: Science Applications International Corporation / PIX 13464 Concentrating solar power (CSP) technologies use mirrors to reflect and concentrate sunlight onto a single

  9. GENESIS | Department of Energy

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

    GENESIS GENESIS PDF icon DOE-LPOProject-PostersCSPGenesis.pdf More Documents & Publications DESERT SUNLIGHT 2014 Concentrating Solar Power Report CRESCENT DUNES

  10. Loan Guarantee Recipient Awarded Top Renewable Plant | Department...

    Office of Environmental Management (EM)

    The latest is Desert Sunlight, a 550-megawatt (MW) photovoltaic (PV) solar power plant located in Riverside County, California, that was issued partial loan guarantees totaling ...

  11. Modeling Sunlight Harvesting in Nanostructures| U.S. DOE Office...

    Office of Science (SC) Website

    For example, scientists developed models that led to rational design principles for better solar panels and other solar energy conversion technologies. The Impact This review ...

  12. Hefei Sunlight Power Supply Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Sector: Solar, Wind energy Product: Delicated to the design, installation of solar, wind or hybrid electricity generating systems for home and business use. Coordinates:...

  13. Desert Sky Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Sky Wind Farm Jump to: navigation, search Name Desert Sky Wind Farm Facility Desert Sky Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  14. Learning How Nature Uses Sunlight to Split Water

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

    Mn4Ca Structure. (click on image for diagram portraying the water-splitting catalytic cycle) Scientific Highlight LBNL Press Release Physical Biosciences, LBNL 30 November 2006 Learning How Nature Splits Water (Condensed by Brad Plummer from a press release issued by Lawrence Berkeley National Laboratory) Billions of years ago, primitive bacteria developed a way to harness sunlight to split water molecules into protons, electrons and oxygen-the cornerstone of photosynthesis. Now, a team of

  15. Linear Concentrator System Basics for Concentrating Solar Power

    Broader source: Energy.gov [DOE]

    Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear receiver tube. The receiver contains a fluid that is heated by the sunlight and then used to heat a traditional power cycle that spins a turbine that drives a generator to produce electricity.

  16. OpenEI Community - power plant

    Open Energy Info (EERE)

    Desert Sunlight goes online http:en.openei.orgcommunityblogdesert-sunlight-goes-online

    Dedicated on Monday, this new 550 MW PV Solar Plant in Southern California is the...

  17. Jweers's blog

    Open Energy Info (EERE)

    5 en Desert Sunlight goes online http:en.openei.orgcommunityblogdesert-sunlight-goes-online

    Dedicated on Monday, this new 550 MW PV Solar Plant in Southern California is...

  18. Science on the Hill: Turning windows into solar panels

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

    Science on the Hill: Turning windows into solar panels Turning windows into solar panels Working with quantum dots, researchers achieve a breakthrough in solar-concentrating technology that can turn windows into electric generators. February 7, 2016 solar panel windows The luminescent solar concentrator could turn any window into a daytime power source. Science on the Hill: Turning windows into solar panels Sunlight is abundant, free and for all practical purposes, eternal. Harvesting that light

  19. Photovoltaic solar cell

    SciTech Connect (OSTI)

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

    2015-09-08

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

  20. Photovoltaic solar concentrator

    DOE Patents [OSTI]

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

    2016-03-15

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

  1. Photovoltaic solar concentrator

    DOE Patents [OSTI]

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

    2012-12-11

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

  2. Photodegradation of polychlorinated biphenyls congeners with diethylamine using simulated sunlight

    SciTech Connect (OSTI)

    Lin, Yaw-Jian; Gupta, G.; Baker, J.

    1995-12-01

    Photodegradation of polychlorinated biphenyls (PCBs) can be an important natural decomposition mechanism. As most PCB congeners do not strongly absorb wavelength above 300 nm, sensitizers are used in the transfer of light energy to the PCB molecule in order to enhance their degradation. The objectives of this study were to determine the rate-order of reaction and the photodegradation rates of PCB congeners by simulated sunlight in the presence of diethylamine which is used to absorb radiation energy and to enhance the dechlorination of PCB. Five PCB congeners (66, 101, 110, 118, and 138) with diethylamine were exposed to simulated sunlight from 0, 1, 2, 4, 8 to 24 hours. These five congeners constitute 45.45% of all the Aroclor 1254 congeners. The first order reaction rate was confirmed. The photodegradation rates of the PCB congeners varied from 1.76 to 6.42 x 10{sup 8} mole liter{sup -1} hour{sup -1}. The rates were directly proportional to the concentrations of the PCB congeners. The data also indicated that the photodegradation (of congener 101) is independent of the concentration of diethylamine.

  3. Solar water heating: FEMP fact sheet

    SciTech Connect (OSTI)

    Clyne, R.

    1999-09-30

    Using the sun to heat domestic water makes sense in almost any climate. Solar water heaters typically provide 40 to 80{percent} of a building's annual water-heating needs. A solar water-heating system's performance depends primarily on the outdoor temperature, the temperature to which the water is heated, and the amount of sunlight striking the collector.

  4. How Solar Works | Department of Energy

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

    2 likes How Solar Works Every four minutes, another American home or business goes solar, but how do solar panels turn sunlight into energy? We'll answer that question, while exploring other topics like the different types of solar technology available for both commercial and residential use and the steps you need to take before you install solar panels on your house. For more on solar energy, check out the Top 6 Things You Didn't Know About Solar Energy. Innovators Sort by: Random |

  5. Desert Queen Geothermal Project | Open Energy Information

    Open Energy Info (EERE)

    ,"group":"","inlineLabel":"","visitedicon":"" Hide Map Location Fernley, NV County Churchill County, NV Geothermal Area Desert Queen Geothermal Area Geothermal Region Northwest...

  6. Correction. Sunlight absorption in water – efficiency and design implications for photoelectrochemical devices

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Döscher, H.; Geisz, J. F.; Deutsch, T. G.; Turner, J. A.

    2016-04-15

    Correction for 'Sunlight absorption in water - efficiency and design implications for photoelectrochemical devices' by H. Doscher et al., Energy Environ. Sci., 2014, 7, 2951-2956.

  7. Concentrating Solar Power Projects by Technology | Concentrating Solar

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

    Power | NREL Technology In this section, you can select a concentrating solar power (CSP) technology from the list below. You can then select a specific project and review a profile covering project basics, participating organizations, and power plant configuration data for the solar field, power block, and thermal energy storage. Parabolic Trough Systems-line-focus systems that use curved mirrors to focus sunlight on a receiver Linear Fresnel Reflector Systems-line-focus systems that use

  8. Fact Sheet: Concentrating Solar Power | Department of Energy

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

    Concentrating Solar Power Fact Sheet: Concentrating Solar Power Concentrating solar power (CSP) is a dispatchable, renewable energy option that uses mirrors to focus and concentrate sunlight onto a receiver, from which a heat transfer fluid carries the intense thermal energy to a power block to generate electricity. CSP systems can store solar energy to be used when the sun is not shining. It will help meet the nation's goal of making solar energy fully cost-competitive with other energy sources

  9. Concentrating Solar Resource of the Southwest United States

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

    Concentrating Solar Power Concentrating Solar Power The SunShot Initiative supports research and development of concentrating solar power (CSP) technologies that reduce the cost of solar energy. CSP helps to achieve the SunShot Initiative cost targets with systems that can supply solar power on demand, even when there is no sunlight, through the use of thermal storage. Since SunShot's inception, the levelized cost of electricity for CSP has decreased about 36 percent, from $0.21 cents per

  10. Core Analysis At Desert Peak Area (Laney, 2005) | Open Energy...

    Open Energy Info (EERE)

    Desert Peak Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Core Analysis At Desert Peak Area (Laney, 2005) Exploration...

  11. Gas Flux Sampling At Desert Peak Area (Lechler And Coolbaugh...

    Open Energy Info (EERE)

    Desert Peak Area (Lechler And Coolbaugh, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Gas Flux Sampling At Desert Peak Area (Lechler And...

  12. Cuttings Analysis At Desert Peak Area (Laney, 2005) | Open Energy...

    Open Energy Info (EERE)

    Desert Peak Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Desert Peak Area (Laney, 2005) Exploration...

  13. California Desert Fish Farm Aquaculture Low Temperature Geothermal...

    Open Energy Info (EERE)

    Desert Fish Farm Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name California Desert Fish Farm Aquaculture Low Temperature Geothermal Facility...

  14. BLM California Desert District Office | Open Energy Information

    Open Energy Info (EERE)

    California Desert District Office Jump to: navigation, search Name: California Desert District Office Address: 22835 Calle San Juan De Los Lagos Place: Moreno Valley, CA Zip: 92553...

  15. Geothermometry At Desert Queen Area (Garchar & Arehart, 2008...

    Open Energy Info (EERE)

    Desert Queen Area (Garchar & Arehart, 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Desert Queen Area (Garchar &...

  16. Reflection Survey At San Emidio Desert Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At San Emidio Desert Area (DOE GTP)...

  17. Refraction Survey At San Emidio Desert Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At San Emidio Desert Area (DOE GTP)...

  18. Thermal Gradient Holes At San Emidio Desert Area (DOE GTP) |...

    Open Energy Info (EERE)

    San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At San Emidio Desert Area (DOE GTP)...

  19. Desert Hot Springs Space Heating Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Desert Hot Springs Space Heating Low Temperature Geothermal Facility Facility Desert Hot...

  20. Production of fullerenes using concentrated solar flux

    DOE Patents [OSTI]

    Fields, Clark L.; Pitts, John Roland; King, David E.; Hale, Mary Jane; Bingham, Carl E.; Lewandowski, Allan A.

    2000-01-01

    A method of producing soot containing high amounts of fullerenes comprising: providing a primary concentrator capable of impingement of a concentrated beam of sunlight onto a carbon source to cause vaporization of carbon and subsequent formation of fullerenes, or providing a solar furnace having a primary concentrator with a focal point that concentrates a solar beam of sunlight; providing a reflective secondary concentrator having an entrance aperture and an exit aperture at the focal point of the solar furnace; providing a carbon source at the exit aperture of the secondary concentrator; supplying an inert gas over the carbon source to keep the secondary concentrator free from vaporized carbon; and impinging a concentrated beam of sunlight from the secondary concentrator on the carbon source to vaporize the carbon source into a soot containing high amounts of fullerenes.

  1. Solar energy collection system

    SciTech Connect (OSTI)

    Hummel, R.L.

    1982-04-06

    A solar energy collection system for a building is described. A solar energy collector is disposed at the exterior surface of the building and includes a solar energy absorbent body having a surface which is exposed to sunlight and from which solar energy can be transmitted as sensible heat. A panel which is transparent to sunlight is spaced from the said surface of the absorbent body so as to define therewith a passageway in which air contacts at least a substantial area of said surface so that air in said passageway absorbs heat transmitted from said surface when the collector is in use. The passageway has an inlet and an outlet and the absorbent body and panel are arranged with the outlet higher than the inlet so that heated air in the passageway tends to rise by convection towards the outlet. The building is provided with heating means including a circulation circuit for a heating fluid. Heat exchange means are coupled to said air passageway outlet of the solar energy collector for passage of heated air therethrough. The heat exchange means are also coupled to the circulation circuit of the building heating means and are arranged to permit heat transfer between said heated air and the heating fluid. A return air flow conduit is coupled between the heat exchange means and the inlet of the air passageway of the solar energy collector for returning heated air from the heat exchange means to the air passageway for recirculation.

  2. Observed 20th Century Desert Dust Variability: Impact on Climate and Biogeochemistry

    SciTech Connect (OSTI)

    Mahowald, Natalie; Kloster, Silvia; Engelstaedter, S.; Moore, Jefferson Keith; Mukhopadhyay, S.; McConnell, J. R.; Albani, S.; Doney, Scott C.; Bhattacharya, A.; Curran, M. A. J.; Flanner, Mark G.; Hoffman, Forrest M; Lawrence, David M.; Lindsay, Keith; Mayewski, P. A.; Neff, Jason; Rothenberg, D.; Thomas, E.; Thornton, Peter E; Zender, Charlie S.

    2010-01-01

    Desert dust perturbs climate by directly and indirectly interacting with incoming solar and outgoing long wave radiation, thereby changing precipitation and temperature, in addition to modifying ocean and land biogeochemistry. While we know that desert dust is sensitive to perturbations in climate and human land use, previous studies have been unable to determine whether humans were increasing or decreasing desert dust in the global average. Here we present observational estimates of desert dust based on paleodata proxies showing a doubling of desert dust during the 20th century over much, but not all the globe. Large uncertainties remain in estimates of desert dust variability over 20th century due to limited data. Using these observational estimates of desert dust change in combination with ocean, atmosphere and land models, we calculate the net radiative effect of these observed changes (top of atmosphere) over the 20th century to be -0.14 {+-} 0.11 W/m{sup 2} (1990-1999 vs. 1905-1914). The estimated radiative change due to dust is especially strong between the heavily loaded 1980-1989 and the less heavily loaded 1955-1964 time periods (-0.57 {+-} 0.46 W/m{sup 2}), which model simulations suggest may have reduced the rate of temperature increase between these time periods by 0.11 C. Model simulations also indicate strong regional shifts in precipitation and temperature from desert dust changes, causing 6 ppm (12 PgC) reduction in model carbon uptake by the terrestrial biosphere over the 20th century. Desert dust carries iron, an important micronutrient for ocean biogeochemistry that can modulate ocean carbon storage; here we show that dust deposition trends increase ocean productivity by an estimated 6% over the 20th century, drawing down an additional 4 ppm (8 PgC) of carbon dioxide into the oceans. Thus, perturbations to desert dust over the 20th century inferred from observations are potentially important for climate and biogeochemistry, and our understanding

  3. Solar Performance and Efficiency | Department of Energy

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

    Performance and Efficiency Solar Performance and Efficiency August 20, 2013 - 2:58pm Addthis The conversion efficiency of a photovoltaic (PV) cell, or solar cell, is the percentage of the solar energy shining on a PV device that is converted into usable electricity. Improving this conversion efficiency is a key goal of research and helps make PV technologies cost-competitive with conventional sources of energy. Factors Affecting Conversion Efficiency Not all of the sunlight that reaches a PV

  4. Modelling acceptance of sunlight in high and low photovoltaic concentration

    SciTech Connect (OSTI)

    Leutz, Ralf

    2014-09-26

    A simple model incorporating linear radiation characteristics, along with the optical trains and geometrical concentration ratios of solar concentrators is presented with performance examples for optical trains of HCPV, LCPV and benchmark flat-plate PV.

  5. Linear Concentrator Solar Power Plant Illustration

    Broader source: Energy.gov [DOE]

    This graphic illustrates linear concentrating solar power (CSP) collectors that capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear receiver tube. The receiver contains a fluid that is heated by the sunlight and then used to create superheated steam that spins a turbine that drives a generator to produce electricity. Alternatively, steam can be generated directly in the solar field, eliminating the need for costly heat exchangers. In a parabolic trough system, the receiver tube is positioned along the focal line of each parabola-shaped reflector.

  6. SunPeak Solar LLC | Open Energy Information

    Open Energy Info (EERE)

    search Name: SunPeak Solar LLC Place: Palm Desert, California Zip: 92260 Product: US project developer and asset manager, focussing on PV projects in the south-west....

  7. DOE - NNSA/NFO -- News & Views Camp Desert Rock

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

    Camp Desert Rock Photo - Camp Desert Rock Camp Desert Rock, also known as Desert Atom Camp, Nevada, was home to the U.S. Army's Atomic Maneuver Battalion in the 1950s. More than 2,300 soldiers were trained here in 1955. The 100 semi-permanent buildings and more than 500 tents often were filled to the 6,000 personnel capacity. Desert Rock Airport, with its 7,500 foot runway, was built on the former Camp Desert Rock. At peak operation Camp Desert Rock comprised of 100 semi-permanent buildings,

  8. Cost-Effective Replacement for Iodide in Dye-Sensitized Solar Cells -

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

    Energy Innovation Portal Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Cost-Effective Replacement for Iodide in Dye-Sensitized Solar Cells Colorado State University Contact CSU About This Technology Publications: PDF Document Publication Electron Transfer Mediator Summary (236 KB) Cross-section of solar cell Cross-section of solar cell Technology Marketing SummaryDye-sensitized solar cells (DSSCs) are used to create electrical energy from sunlight. The cell has

  9. Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award

    Broader source: Energy.gov [DOE]

    Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power plants can burn to make electricity.

  10. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    R&D Magazine: Windows into Solar Power Sources with Quantum Dots R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt the way we think about energy: It could turn any window into a daytime power source. August 30, 2015 R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology

  11. Photo of the Week: Boosting Solar Technology | Department of Energy

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

    Boosting Solar Technology Photo of the Week: Boosting Solar Technology April 15, 2013 - 4:47pm Addthis Concentrated solar panels are getting a power boost. This summer, Pacific Northwest National Laboratory (PNNL) will be testing a new concentrated solar power system -- one that can help natural gas power plants reduce their fuel usage by up to 20 percent. PNNL has developed a system that uses a thermochemical conversion device to convert natural gas and sunlight into a more energy-rich fuel

  12. Shining Sunlight on SunShot’s Project Portfolio

    Broader source: Energy.gov [DOE]

    A new interactive project map gives the public a birds-eye view of more than 200 active projects in EERE's SunShot Initiative. Working to make solar energy cost competitive, SunShot is showing where the projects are, what they're setting out to discover, and more.

  13. Concentrating Solar Power - Fact Sheet

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

    solar power (CSP) is a dispatchable, renewable energy option that uses mirrors to focus and concentrate sunlight onto a receiver, from which a heat transfer fluid carries the intense thermal energy to a power block to generate electricity. CSP systems can store solar energy to be used when the sun is not shining. It will help meet the nation's goal of making solar energy fully cost-competitive with other energy sources by the end of the decade. Worldwide, CSP activity is rapidly scaling, with

  14. Energy Innovation Hubs and the Quest to Turn Sunlight Into Fuel...

    Office of Environmental Management (EM)

    Finding a cost-effective way to produce fuels as plants do -- combining sunlight, water, and carbon dioxide -- would be a game changer, reducing our dependence on oil and enhancing ...

  15. EIS-0448: Record of Decision | Department of Energy

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

    Record of Decision Issuance of a Loan Guarantee to First Solar, Inc., for the Desert Sunlight Solar Farm Project, Riverside County, California (October 2011) The U.S. Department...

  16. Caprolactam production by direct solar flux

    SciTech Connect (OSTI)

    Talukdar, J.; Wong, E.H.S.; Mathur, V.K. )

    1991-01-01

    The use of solar energy for the photonitrozation of cyclohexane for the production of cyclohexanone oxime hydrochloride, an intermediate for the manufacture of caprolactam, is discussed. Experimental results show the technical feasibility of such a reaction in the presence of radiation of wavelength 350-550 nm simulating sunlight.

  17. NREL's Black Silicon Increases Solar Cell Efficiency by Reducing Reflected Sunlight (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-11-01

    A fact sheet detailing the R&D 100 Award-winning Black Silicon Nanocatalytic Wet-Chemical Etch technology.

  18. Powering Your Community With Solar: Overcoming Market and Implementation Barriers (Fact Sheet), U.S. Department of Energy (DOE)

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

    Your Community With Solar: Overcoming Market and Implementation Barriers Lessons from successful Solarize campaigns help communities seize volume discounts through collective purchasing The first Solarize program began in Portland, Oregon, as a grassroots campaign for collective 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.

  19. UNC EFRC: Fuels from Sunlight (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    SciTech Connect (OSTI)

    Meyer, Thomas J.; UNC EFRC Staff

    2011-05-01

    'Fuels from Sunlight' was submitted by the University of North Carolina (UNC) EFRC: Solar Fuels and Next Generation Photovoltaics to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. The UNC EFRC directed by Thomas J. Meyer is a partnership of scientists from six institutions: UNC (lead), Duke University, University of Florida, North Caroline Central University, North Carolina State University, and the Research Triangle Institute. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of Solar Fuels and Next Generation Photovoltaics is 'to combine the best features of academic and translational research to study light/matter interactions and chemical processes for the efficient collection, transfer, and conversion of solar energy into chemical fuels and electricity.' Research topics are: catalysis (CO{sub 2}, hydrocarbons, water), electrocatalysis, photocatalysis, photoelectrocatalysis, solar photovoltaic, solar fuels, photonic, solar electrodes, photosynthesis, fuel cells, CO{sub 2} (convert), greenhosue gas, hydrogen (fuel), interfacial characterization, novel materials synthesis, charge transport, and self-assembly.

  20. UNC EFRC: Fuels from Sunlight (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Meyer, Thomas J. (Director, UNC EFRC: Solar Fuels and Next Generation Photovoltaics); UNC EFRC Staff

    2011-11-02

    'Fuels from Sunlight' was submitted by the University of North Carolina (UNC) EFRC: Solar Fuels and Next Generation Photovoltaics to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. The UNC EFRC directed by Thomas J. Meyer is a partnership of scientists from six institutions: UNC (lead), Duke University, University of Florida, North Caroline Central University, North Carolina State University, and the Research Triangle Institute. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of Solar Fuels and Next Generation Photovoltaics is 'to combine the best features of academic and translational research to study light/matter interactions and chemical processes for the efficient collection, transfer, and conversion of solar energy into chemical fuels and electricity.' Research topics are: catalysis (CO{sub 2}, hydrocarbons, water), electrocatalysis, photocatalysis, photoelectrocatalysis, solar photovoltaic, solar fuels, photonic, solar electrodes, photosynthesis, fuel cells, CO{sub 2} (convert), greenhosue gas, hydrogen (fuel), interfacial characterization, novel materials synthesis, charge transport, and self-assembly.

  1. Suppression of Tla1 gene expression for improved solar conversion efficiency and photosynthetic productivity in plants and algae

    DOE Patents [OSTI]

    Melis, Anastasios; Mitra, Mautusi

    2010-06-29

    The invention provides method and compositions to minimize the chlorophyll antenna size of photosynthesis by decreasing TLA1 gene expression, thereby improving solar conversion efficiencies and photosynthetic productivity in plants, e.g., green microalgae, under bright sunlight conditions.

  2. 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: 

  3. Concentrating Solar Power | Department of Energy

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

    Power Concentrating Solar Power The SunShot Initiative supports research and development of concentrating solar power (CSP) technologies that reduce the cost of solar energy. CSP helps to achieve the SunShot Initiative cost targets with systems that can supply solar power on demand, even when there is no sunlight, through the use of thermal storage. Since SunShot's inception, the levelized cost of electricity for CSP has decreased about 36 percent, from $0.21 cents per kilowatt hour to $0.13

  4. Solar Energy Technology Basics | Department of Energy

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

    Renewable Energy » Solar Energy Technology Basics Solar Energy Technology Basics August 16, 2013 - 4:37pm Addthis Did you know that the amount of sunlight that strikes the earth's surface in an hour and a half is enough to handle the entire world's energy consumption for a full year? Solar energy has amazing potential to power our daily lives thanks to constantly-improving technologies. Solar energy systems come in all shapes and sizes. Residential systems are found on rooftops across the

  5. BLM West Desert District Office | Open Energy Information

    Open Energy Info (EERE)

    West Desert District Office Jump to: navigation, search Name: BLM West Desert District Office Place: Salt Lake City, Utah Phone Number: (801) 977-4300 ParentHolding Organization:...

  6. California Desert Native Plants Act | Open Energy Information

    Open Energy Info (EERE)

    California Desert Native Plants Act Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: California Desert Native Plants ActLegal...

  7. Direct sunlight facility for testing and research in HCPV

    SciTech Connect (OSTI)

    Sciortino, Luisa Agnello, Simonpietro Bonsignore, Gaetano; Cannas, Marco; Gelardi, Franco Mario; Napoli, Gianluca; Spallino, Luisa; Barbera, Marco; Buscemi, Alessandro; Montagnino, Fabio Maria; Paredes, Filippo; Candia, Roberto; Collura, Alfonso; Di Cicca, Gaspare; Cicero, Ugo Lo; Varisco, Salvo

    2014-09-26

    A facility for testing different components for HCPV application has been developed in the framework of 'Fotovoltaico ad Alta Efficienza' (FAE) project funded by the Sicilian Regional Authority (PO FESR Sicilia 2007/2013 4.1.1.1). The testing facility is equipped with an heliostat providing a wide solar beam inside the lab, an optical bench for mounting and aligning the HCPV components, electronic equipments to characterize the I-V curves of multijunction cells operated up to 2000 suns, a system to circulate a fluid in the heat sink at controlled temperature and flow-rate, a data logging system with sensors to measure temperatures in several locations and fluid pressures at the inlet and outlet of the heat sink, and a climatic chamber with large test volume to test assembled HCPV modules.

  8. 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.

  9. Modeling-Computer Simulations At Desert Peak Area (Wisian & Blackwell...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Desert Peak Area (Wisian & Blackwell, 2004) Exploration Activity...

  10. Desert architecture for educational buildings, a case study: A center for training university graduates

    SciTech Connect (OSTI)

    Ebeid, M.

    1996-10-01

    A new program for training graduates in desert development is being implemented by the Desert Development Center (DDC) of the American University in Cairo. The facilities consist of fifty bed/sitting rooms for accommodating 100 students. Each unit consists of two rooms and a bathroom for the use of 4 students; a lecture theater which can house 120 students, with adjoining office for trainers as well as necessary facilities; a general cafeteria which can serve 120--150 persons and an adjoining dining room for teaching staff. The cafeteria building also houses the kitchen; a cold storage area; a laundry room, storerooms, sleeping quarters and services for the labor force of the building complex; a system of solar water heaters; and a special sanitary sewage system for treatment of waste water produced by the building`s activities. When designing and implementing this complex, architectural elements and building philosophy based on the concept of integrating with the environment were considered. Elements included orientation heights and building materials suited to the desert environment, thick walls, outer and inner finishing materials, roofs, malkafs, floors, colors, solar heaters, lighting, green areas, windbreaks, terraces, and furniture. The paper includes a general evaluation of this educational building based on the PRA approach (Participatory Rapid Appraisal) involving those living and working in it. As a result of her position with the project, the author was able to evaluate the original designs, recommend modifications, and evaluate their implementation and fulfillment of the original goals of the projects.

  11. UNC Energy Frontier Research Center Center for Solar Fuels

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

    UNC Energy Frontier Research Center Center for Solar Fuels University of North Carolina at Chapel Hill (UNC-CH) VISION To provide the basic research to enable a revolution in the collection and conversion of sunlight into storable solar fuels. MISSION To conduct research on dye-sensitized photoelectrosynthesis cells (DSPECs) for water splitting and tandem cells for the reduction of carbon dioxide to carbon-based solar fuels. Center Director Thomas J. Meyer Arey Distinguished Professor of

  12. Photo of the Week: Butterflies, Crystal Nanostructures and Solar Cell

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

    Concentrated solar panels are getting a power boost. This summer, Pacific Northwest National Laboratory (PNNL) will be testing a new concentrated solar power system -- one that can help natural gas power plants reduce their fuel usage by up to 20 percent. PNNL has developed a system that uses a thermochemical conversion device to convert natural gas and sunlight into a more energy-rich fuel called syngas. By installing the pictured device in front of a concentrating solar power dish, power

  13. Shiny quantum dots brighten future of solar cells

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

    Shiny quantum dots brighten future of solar cells Shiny quantum dots brighten future of solar cells The project demonstrates that superior light-emitting properties of quantum dots can be applied in solar energy by helping more efficiently harvest sunlight. April 14, 2014 Quantum dot LSC devices under ultraviolet illumination. Quantum dot LSC devices under ultraviolet illumination. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "The key accomplishment is the

  14. Concentrating Solar Power (Fact Sheet)

    SciTech Connect (OSTI)

    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.

  15. Photo of the Week: Record-Breaking Solar Cells | Department of Energy

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

    Record-Breaking Solar Cells Photo of the Week: Record-Breaking Solar Cells December 7, 2012 - 2:27pm Addthis Solar Junction, in partnership with NREL, has developed solar cells that reach a record-breaking 44 percent efficiency -- meaning that more than 40 percent of the sunlight the solar cells are exposed to is converted into electrical energy. In this photo, an operator inspects a photolithography tool used to manufacture these solar cells. | Photo by Daniel Derkacs/SolarJunction. Solar

  16. One-Step Device Converts Water, Sunlight Into Fuel of the Future

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

    One-Step Device Converts Water, Sunlight Into Fuel of the Future For more information contact: George Douglas (303) 275-4096 e:mail: george_douglas@nrel.gov Golden, Colo., April 16, 1998 — A device developed by researchers at the U.S. Department of Energy's National Renewable Energy Laboratory uses two of the world's most abundant resources, water and sunlight, to directly generate hydrogen, a non-polluting and totally recyclable fuel. The results of the research by Senior Scientist Dr. John

  17. Portable solar water heater

    SciTech Connect (OSTI)

    Borodulin, G.; Baron, R.; Shkolnik, A.

    1985-11-12

    A combined table and portable solar water heater comprises a suitcase-like rigid casing molded from a rigid plastic material which contains a pair of solar collector panels and connected in series. The panels can be exposed to solar radiation when the casing is opened. Each collector panel or is formed by a copper plate with the solar radiation absorbing surface and copper pipe coil or in heat-transferring relationship with said copper plate. The casing is provided with compartments for accessories, such as adjustable legs for supporting the casing, adjusting its angle to incident sunlight, and for converting the casing into a table; containers for feeding cold water to the solar collector and for receiving hot water from the collector; and a tripod stand for supporting the feeding container at the level above the collector and for arranging a shower set. Temperature-insulating layers of the collectors are formed by separate pieces of rigid material which can be removed from the casing and assembled into a box-shaped container which can be utilized for maintaining water heated by means of the solar water heater at an elevated temperature.

  18. U.S. Departments of Energy and Interior Announce Site for Solar Energy

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

    Demonstration Projects in the Nevada Desert | Department of Energy Energy and Interior Announce Site for Solar Energy Demonstration Projects in the Nevada Desert U.S. Departments of Energy and Interior Announce Site for Solar Energy Demonstration Projects in the Nevada Desert July 8, 2010 - 12:00am Addthis Washington, DC - U.S. Department of Energy Secretary Steven Chu, U.S. Department of Interior Secretary Ken Salazar and Senate Majority Leader Harry Reid of Nevada announced today the site

  19. A Fully Integrated Nanosystem of Semiconductor Nanowires for Direct Solar Water Splitting

    SciTech Connect (OSTI)

    Liu, Chong; Tang, Jinyao; Chen, HaoMing; Liu, Bin; Yang, Peidong

    2013-02-21

    Artificial photosynthesis, the biomimetic approach to converting sunlight?s energy directly into chemical fuels, aims to imitate nature by using an integrated system of nanostructures, each of which plays a specific role in the sunlight-to-fuel conversion process. Here we describe a fully integrated system of nanoscale photoelectrodes assembled from inorganic nanowires for direct solar water splitting. Similar to the photosynthetic system in a chloroplast, the artificial photosynthetic system comprises two semiconductor light absorbers with large surface area, an interfacial layer for charge transport, and spatially separated cocatalysts to facilitate the water reduction and oxidation. Under simulated sunlight, a 0.12percent solar-to-fuel conversion efficiency is achieved, which is comparable to that of natural photosynthesis. The result demonstrates the possibility of integrating material components into a functional system that mimics the nanoscopic integration in chloroplasts. It also provides a conceptual blueprint of modular design that allows incorporation of newly discovered components for improved performance.

  20. EERE Success Story-Washington: When Life Gives You Solar, Make Syngas |

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

    Department of Energy When Life Gives You Solar, Make Syngas EERE Success Story-Washington: When Life Gives You Solar, Make Syngas November 8, 2013 - 12:00am Addthis Pacific Northwest National Laboratory (PNNL) is developing a new method for combining solar energy with modified natural gas power plants. This concentrating solar power (CSP) system harnesses sunlight to produce syngas, which is a fuel capable of driving a standard heat engine to produce electricity. In addition to offsetting

  1. MULTIFUNCTIONAL SOLAR ENERGY SYSTEMS RESEARCH PROJECT

    SciTech Connect (OSTI)

    Byard Wood, Lance Seefeldt, Ronald Sims, Bradley Wahlen, and Dan Dye

    2012-06-29

    The solar energy available within the visible portion of the solar spectrum is about 300 W/m2 (43%) and that available in the UV and IR portion is about 400 W/m2 (57%). This provides opportunities for developing integrated energy systems that capture and use specific wavelengths of the solar spectrum for different purposes. For example: biofuels from photosynthetic microbes use only the visible light; solar cells use a narrow band of the solar spectrum that could be either mostly in the visible or in the IR regions of the solar spectrum, depending on the photovoltaic materials, e.g., gallium antimonide (GaSb) cells utilize predominately IR radiation; and finally, solar panels that heat water utilize a broad range of wavelengths (visible plus IR). The basic idea of this research is that sunlight has many possible end-use applications including both direct use and energy conversion schemes; it is technically feasible to develop multifunctional solar energy systems capable of addressing several end-use needs while increasing the overall solar energy utilization efficiency when compared to single-purpose solar technologies. Such a combination of technologies could lead to more cost-competitive ?multifunctional? systems that add value and broaden opportunities for integrated energy systems. The goal of this research is to increase the overall energy efficacy and cost competitiveness of solar systems. The specific objectives of this research were: 1) Evaluate the efficacy of a combined photobioreactor and electric power system; 2) Improve the reliability and cost effectiveness of hybrid solar lighting systems ? a technology in which sunlight is collected and distributed via optical fibers into the interior of a building; 3) Evaluate the efficacy of using filtered light to increase the production of biomass in photobioreactors and provide more solar energy for other uses; 4) Evaluates several concepts for wavelength shifting such that a greater percentage of the solar

  2. High performance robotic traverse of desert terrain.

    SciTech Connect (OSTI)

    Whittaker, William

    2004-09-01

    This report presents tentative innovations to enable unmanned vehicle guidance for a class of off-road traverse at sustained speeds greater than 30 miles per hour. Analyses and field trials suggest that even greater navigation speeds might be achieved. The performance calls for innovation in mapping, perception, planning and inertial-referenced stabilization of components, hosted aboard capable locomotion. The innovations are motivated by the challenge of autonomous ground vehicle traverse of 250 miles of desert terrain in less than 10 hours, averaging 30 miles per hour. GPS coverage is assumed to be available with localized blackouts. Terrain and vegetation are assumed to be akin to that of the Mojave Desert. This terrain is interlaced with networks of unimproved roads and trails, which are a key to achieving the high performance mapping, planning and navigation that is presented here.

  3. Kick-Starting the School Year with Operation Clean Desert

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

    September 10, 2012 Kick-Starting the School Year with Operation Clean Desert School is back in session and Operation Clean Desert was there to give it a kick start! On August 21, 2012, the Operation Clean Desert Teacher's Guide made its debut along with the recently revised companion activity book during the 2012 Educator Appreciation Day & Back To School Fair at The Mirage in Las Vegas, NV. Hundreds of teachers attended the event (hosted by MGM Resorts International) and approximately 150

  4. Structural Analysis of the Desert Peak-Brady Geothermal Fields...

    Open Energy Info (EERE)

    Structures and Geothermal Reservoirs in the Humboldt Structural Zone Citation James E. Faulds,Larry J. Garside,Gary L. Oppliger. 2003. Structural Analysis of the Desert...

  5. City of Palm Desert - Energy Independence Program | Department...

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

    conditioners Windows Doors Other EE Program Info Sector Name Local Administrator Palm Desert Website http:www.cityofpalmdesert.orgIndex.aspx?page484 State California Program...

  6. Palm Desert, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Desert, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.7222445, -116.3744556 Show Map Loading map... "minzoom":false,"mappingse...

  7. Desert Hot Springs, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Riverside County, California. It falls under California's 41st congressional district.12 Registered Energy Companies in Desert Hot Springs, California BCL Associates Inc...

  8. America's Atomic Army: The Historical Archaeology of Camp Desert Rock

    SciTech Connect (OSTI)

    Susan R. Edwards

    2007-11-02

    Established in 1951, Camp Desert Rock served as the training ground for America's 'Atomic Army'. For the next six years, U.S. ground troops traveled to the Nevada desert to participate in military maneuvers during atmospheric atomic weapons testing. Nearly 60,000 soldiers received physical and psychological training in atomic warfare. Abandoned when atmospheric testing ended, Camp Desert Rock was dismantled and its buildings moved to other locations. Today, the camp appears as a sterile expanse of desert marked by rock-lined tent platforms, concrete foundations, and trash scatters. Although visually unimposing, the site is rich with the history of America's nuclear testing program.

  9. Desert Hills, Arizona: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Desert Hills, Arizona: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.5538996, -114.3724569 Show Map Loading map... "minzoom":false,"mappin...

  10. Desert Peak East EGS Project; 2010 Geothermal Technology Program...

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

    East EGS Project; 2010 Geothermal Technology Program Peer Review Report Desert Peak East EGS Project; 2010 Geothermal Technology Program Peer Review Report DOE 2010 Geothermal...

  11. Desert Peak II Geothermal Facility | Open Energy Information

    Open Energy Info (EERE)

    Facility Desert Peak II Sector Geothermal energy Location Information Location Churchill, Nevada Coordinates 39.753854931241, -118.95378112793 Loading map......

  12. Boston solar retrofits: studies of solar access and economics

    SciTech Connect (OSTI)

    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.

  13. Solar Circuitry

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

    Solar Circuitry" with the Solar Powered Energy Kit Curriculum: Solar Power- (lightelectromagnetic radiation, electricity, circuitry, efficiency, energy transformation, subatomic ...

  14. In the OSTI Collections: Clouds, Sunlight, and Radiant Heat | OSTI, US Dept

    Office of Scientific and Technical Information (OSTI)

    of Energy Office of Scientific and Technical Information Clouds, Sunlight, and Radiant Heat View Past"In the OSTI Collections"Articles. Article Acknowledgement: Dr. William N. Watson, Physicist DOE Office of Scientific and Technical Information Clouds and other aerosols More about clouds Plans for further investigations References Reports available through OSTI's SciTech Connect Additional references The sun radiates electromagnetic waves of every frequency into the space around

  15. Ethylene Production Via Sunlight Opens Door to Future - News Feature | NREL

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

    Ethylene Production Via Sunlight Opens Door to Future July 31, 2015 A scientist holds a petri dish containing algae. NREL scientist Jianping Yu holds a petri dish of cyanobacteria culture being grown in his lab. He is working to cultivate various genetically engineered strains to promote ethylene production. Photo by Dennis Schroeder Here's the future of ethylene production as Dr. Jianping Yu sees it. "We envision some farms in the field that cover many acres. We will have cyanobacteria

  16. Nanoscience at Work: Creating Energy from Sunlight (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Alivisatos, Paul

    2011-04-28

    Paul Alivisatos, co-leader of Berkeley Lab's Helios Project, is the Associate Director for Physical Sciences and director of the Materials Sciences Division at Berkeley Lab. In the Helios Project, Alivisatos will use nanotechnology in the efficient capture of sunlight and its conversion to electricity to drive economical fuel production processes. He is an authority on artificial nanostructure synthesis and inventor of the quantum dot technology.

  17. Upside-Down Solar Cell Achieves Record Efficiencies (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-12-01

    The inverted metamorphic multijunction (IMM) solar cell is an exercise in efficient innovation - literally, as the technology boasted the highest demonstrated efficiency for converting sunlight into electrical energy at its debut in 2005. Scientists at the National Renewable Energy Laboratory (NREL) inverted the conventional photovoltaic (PV) structure to revolutionary effect, achieving solar conversion efficiencies of 33.8% and 40.8% under one-sun and concentrated conditions, respectively.

  18. Center Objective | Center for Bio-Inspired Solar Fuel Production

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

    Center Objective The Science Center Publications Graduate Research opportunities Undergraduate research opportunities EFRC-501 graduate class Seminar schedules Center Objective Solar Fuel Our objective is to adapt the fundamental principles of natural photosynthesis to the man-made production of hydrogen or other fuels from sunlight A multidisciplinary team of the Center for Bio-Inspired Solar Fuel Production (BISfuel) researches artificial photosynthetic antennas and reaction centers that

  19. DOE Loan Programs Office Update

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

    DECEMBER 2015 TITLE XVII PROJECT DESERT SUNLIGHT RECOGNIZED LPO RELEASES REPORT ON CLIMATE BENEFITS LPO WELCOMES NEW SENIOR STAFF MEMBERS OPEN SOLICITATIONS 550-MW LPO-FINANCED PV SOLAR PROJECT CITED AS TOP RENEWABLE PLANT This month, Desert Sunlight, a 550-megawatt (MW) photovoltaic solar power plant located in Riverside County, California, was designated a Top Renewable Plant by POWER Magazine. This is the fourth LPO-financed project to be recognized by POWER Magazine. To learn more about

  20. Solar collection

    SciTech Connect (OSTI)

    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.

  1. InSAR At Desert Peak Area (Laney, 2005) | Open Energy Information

    Open Energy Info (EERE)

    United States by developing basic measurements and interpretations that will assist reservoir management and expansion at Bradys, Desert Peak and the Desert Peak EGS study...

  2. Field Mapping At San Emidio Desert Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At San Emidio Desert Area (DOE GTP) Exploration...

  3. Ground Gravity Survey At San Emidio Desert Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At San Emidio Desert Area (DOE GTP)...

  4. Ground Magnetics At San Emidio Desert Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Magnetics At San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At San Emidio Desert Area (DOE...

  5. Distinctive properties of tabular solar chemical reactors

    SciTech Connect (OSTI)

    Meirovitch, E. )

    1991-01-01

    Concentrated sunlight that can be stored in the chemical bond by activating an endothermic reaction. This novel concept has been implemented recently with solar power captured in a central receiver equipped with chemical reactors. The related theory, presented in this report, singles out this interactive radiative-chemical system as distinctively stable thermodynamically, resilient to perturbations, internally regulatory and self-corrective. None of the thermochemical devices conceived so far bear all these attributes.

  6. Solar energy collection, concentration, and thermal conversion; A review

    SciTech Connect (OSTI)

    Haddock, C.; McKee, J.S.C. )

    1991-01-01

    The efficiency with which solar energy can be converted into more useful forms is one of the most important parameters concerning its utilization as a viable alternate source of energy. High efficiencies can be obtained by utilizing higher temperature working fluids. This in turn implies concentrating the intensity of sunlight using focusing type collector systems is discussed. Potential applications of concentrated solar intensity are presented in this article. A description of a new and potentially highly efficient solar thermal to electric converter based on a solar sustained cesium plasma is presented. Photovoltaics are not discussed in any detail in this article.

  7. Perovskite solar cells self-heal in the dark

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

    Perovskite solar cells self-heal Perovskite solar cells self-heal in the dark Build-up of unwanted charge found to sap photocurrent May 17, 2016 perovskite team From left, Los Alamos researchers Aditya Mohite, Jean-Christophe Blancon and Wanyi Nie study both the cause and a solution for the tendency of perovskite solar cells to degrade in sunlight. Cooling, time in the dark preserve perovskite solar power A new study has found both the cause and a solution for the pesky tendency of perovskite

  8. Concentrating Solar Power Fact Sheet

    SciTech Connect (OSTI)

    2015-12-01

    This fact sheet is an overview of the Concentrating Solar Power (CSP) subprogram at the U.S. Department of Energy SunShot Initiative. CSP is a dispatchable, renewable energy option that uses mirrors to focus and concentrate sunlight onto a receiver, from which a heat transfer fluid carries the intense thermal energy to a power block to generate electricity. CSP systems can store solar energy to be used when the sun is not shining. It will help meet the nation’s goal of making solar energy fully cost-competitive with other energy sources by the end of the decade. Worldwide, CSP activity is rapidly scaling, with approximately 10 gigawatts (GW) in various stages of operation or development. In the United States alone, nearly 2 GW of CSP are in operation.

  9. 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

  10. Solar solids reactor

    DOE Patents [OSTI]

    Yudow, Bernard D.

    1987-01-01

    A solar powered kiln is provided, that is of relatively simple design and which efficiently uses solar energy. The kiln or solids reactor includes a stationary chamber with a rearward end which receives solid material to be reacted and a forward end through which reacted material is disposed of, and a screw conveyor extending along the bottom of the chamber for slowly advancing the material between the chamber ends. Concentrated solar energy is directed to an aperture at the forward end of the chamber to heat the solid material moving along the bottom of the chamber. The solar energy can be reflected from a mirror facing at an upward incline, through the aperture and against a heat-absorbing material near the top of the chamber, which moves towards the rear of the chamber to distribute heat throughout the chamber. Pumps at the forward and rearward ends of the chamber pump heated sweep gas through the length of the chamber, while minimizing the flow of gas through an open aperture through which concentrated sunlight is received.

  11. Solar solids reactor

    DOE Patents [OSTI]

    Yudow, B.D.

    1986-02-24

    A solar powered kiln is provided, that is of relatively simple design and which efficiently uses solar energy. The kiln or solids reactor includes a stationary chamber with a rearward end which receives solid material to be reacted and a forward end through which reacted material is disposed of, and a screw conveyor extending along the bottom of the chamber for slowly advancing the material between the chamber ends. Concentrated solar energy is directed to an aperture at the forward end of the chamber to heat the solid material moving along the bottom of the chamber. The solar energy can be reflected from a mirror facing at an upward incline, through the aperture and against a heat-absorbing material near the top of the chamber, which moves towards the rear of the chamber to distribute heat throughout the chamber. Pumps at the forward and rearward ends of the chamber pump heated sweep gas through the length of the chamber, while minimizing the flow of gas through an open aperture through which concentrated sunlight is received.

  12. Solar synthesis of advanced materials: A solar industrial program initiative

    SciTech Connect (OSTI)

    Lewandowski, A.

    1992-06-01

    This is an initiative for accelerating the use of solar energy in the advanced materials manufacturing industry in the United States. The initiative will be based on government-industry collaborations that will develop the technology and help US industry compete in the rapidly expanding global advanced materials marketplace. Breakthroughs in solar technology over the last 5 years have created exceptional new tools for developing advanced materials. Concentrated sunlight from solar furnaces can produce intensities that approach those on the surface of the sun and can generate temperatures well over 2000{degrees}C. Very thin layers of illuminated surfaces can be driven to remarkably high temperatures in a fraction of a second. Concentrated solar energy can be delivered over large areas, allowing for rapid processing and high production rates. By using this technology, researchers are transforming low-cost raw materials into high-performance products. Solar synthesis of advanced materials uses bulk materials and energy more efficiently, lowers processing costs, and reduces the need for strategic materials -- all with a technology that does not harm the environment. The Solar Industrial Program has built a unique, world class solar furnace at NREL to help meet the growing need for applied research in advanced materials. Many new advanced materials processes have been successfully demonstrated in this facility, including the following: Metalorganic deposition, ceramic powders, diamond-like carbon materials, rapid heat treating, and cladding (hard coating).

  13. Dramatic Demand Reduction In The Desert Southwest

    SciTech Connect (OSTI)

    Boehm, Robert; Hsieh, Sean; Lee, Joon; Baghzouz, Yahia; Cross, Andrew; Chatterjee, Sarah

    2015-07-06

    This report summarizes a project that was funded to the University of Nevada Las Vegas (UNLV), with subcontractors Pulte Homes and NV Energy. The project was motivated by the fact that locations in the Desert Southwest portion of the US demonstrate very high peak electrical demands, typically in the late afternoons in the summer. These high demands often require high priced power to supply the needs, and the large loads can cause grid supply problems. An approach was proposed through this contact that would reduce the peak electrical demands to an anticipated 65% of what code-built houses of the similar size would have. It was proposed to achieve energy reduction through four approaches applied to a development of 185 homes in northwest part of Las Vegas named Villa Trieste. First, the homes would all be highly energy efficient. Secondly, each house would have a PV array installed on it. Third, an advanced demand response technique would be developed to allow the resident to have some control over the energy used. Finally, some type of battery storage would be used in the project. Pulte Homes designed the houses. The company considered initial cost vs. long-term savings and chose options that had relatively short paybacks. HERS (Home Energy Rating Service) ratings for the homes are approximately 43 on this scale. On this scale, code-built homes rate at 100, zero energy homes rate a 0, and Energy Star homes are 85. In addition a 1.764 Wp (peak Watt) rated PV array was used on each house. This was made up of solar shakes that were in visual harmony with the roofing material used. A demand response tool was developed to control the amount of electricity used during times of peak demand. While demand response techniques have been used in the utility industry for some time, this particular approach is designed to allow the customer to decide the degree of participation in the response activity. The temperature change in the residence can be decided by the residents by

  14. Energy Department Announces $12 Million to Accelerate Record-Breaking Solar

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

    Cell Efficiency | Department of Energy 2 Million to Accelerate Record-Breaking Solar Cell Efficiency Energy Department Announces $12 Million to Accelerate Record-Breaking Solar Cell Efficiency January 25, 2013 - 3:41pm Addthis As part of the Energy Department's SunShot Initiative, the Department today announced $12 million to develop innovative, ultra-efficient solar devices that will close the gap with the theoretical efficiency limit, or the highest potential percentage of sunlight

  15. EERE Success Story-Solar Thermochemical Advanced Reactor System, Wins R&D

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

    100 Award | Department of Energy Thermochemical Advanced Reactor System, Wins R&D 100 Award EERE Success Story-Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award October 16, 2014 - 5:24pm Addthis Developed jointed by BARR Engineering, Diver Solar LLC, Oregon State University, and the Pacific Northwest National Laboratory, the Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power

  16. Join us for the 2016 ANSER Symposium: Solar Fuels | ANSER Center |

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

    Argonne-Northwestern National Laboratory Join us for the 2016 ANSER Symposium: Solar Fuels Home > News & Events > Join us for the 2016 ANSER Symposium: Solar Fuels Register here Dear Participants, Bill Gates recently commented on the potential and inevitability of a liquid hydrocarbon from sunlight in the Financial Times. Many of today's prevalent renewable energy sources, such as solar and wind, are inherently intermittent. Energy storage is a critical piece to deeper penetration

  17. Award-Winning Etching Process Cuts Solar Cell Costs - Energy Innovation

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

    Portal Award-Winning Etching Process Cuts Solar Cell Costs National Renewable Energy Laboratory Success Story Details Partner Location Agreement Type Publication Date Natcore Technology Inc. New Jersey Other August 1, 2013 Summary Optimizing solar-cell technology can be a complex job, requiring expertise in material science, physics, and optics to convert as much sunlight as possible into electricity. But despite this complexity, a simple fact is key to making a high-performance solar cell:

  18. Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

    2010-05-14

    Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

  19. Solar Thermal Energy Storage Device: Hybrid Nanostructures for High-Energy-Density Solar Thermal Fuels

    SciTech Connect (OSTI)

    2012-01-09

    HEATS Project: MIT is developing a thermal energy storage device that captures energy from the sun; this energy can be stored and released at a later time when it is needed most. Within the device, the absorption of sunlight causes the solar thermal fuels photoactive molecules to change shape, which allows energy to be stored within their chemical bonds. A trigger is applied to release the stored energy as heat, where it can be converted into electricity or used directly as heat. The molecules would then revert to their original shape, and can be recharged using sunlight to begin the process anew. MITs technology would be 100% renewable, rechargeable like a battery, and emissions-free. Devices using these solar thermal fuelscalled Hybrisolcan also be used without a grid infrastructure for applications such as de-icing, heating, cooking, and water purification.

  20. Technoeconomic analysis of different options for the production of hydrogen from sunlight, wind, and biomass

    SciTech Connect (OSTI)

    Mann, M.K.; Spath, P.L.; Amos, W.A.

    1998-08-01

    To determine their technical and economic viability and to provide insight into where each technology is in its development cycle, different options to produce hydrogen from sunlight, wind, and biomass were studied. Additionally, costs for storing and transporting hydrogen were determined for different hydrogen quantities and storage times. The analysis of hydrogen from sunlight examined the selling price of hydrogen from two technologies: direct photoelectrochemical (PEC) conversion of sunlight and photovoltaic (PV)-generated electricity production followed by electrolysis. The wind analysis was based on wind-generated electricity production followed by electrolysis. In addition to the base case analyses, which assume that hydrogen is the sole product, three alternative scenarios explore the economic impact of integrating the PV- and wind-based systems with the electric utility grid. Results show that PEC hydrogen production has the potential to be economically feasible. Additionally, the economics of the PV and wind electrolysis systems are improved by interaction with the grid. The analysis of hydrogen from biomass focused on three gasification technologies. The systems are: low pressure, indirectly-heated gasification followed by steam reforming; high pressure, oxygen-blown gasification followed by steam reforming; and pyrolysis followed by partial oxidation. For each of the systems studied, the downstream process steps include shift conversion followed by hydrogen purification. Only the low pressure system produces hydrogen within the range of the current industry selling prices (typically $0.7--$2/kg, or $5--14/GJ on a HHV basis). A sensitivity analysis showed that, for the other two systems, in order to bring the hydrogen selling price down to $2/kg, negative-priced feedstocks would be required.

  1. Categorical Exclusion Determinations: Western Area Power Administration-Desert Southwest Region

    Broader source: Energy.gov [DOE]

    Categorical Exclusion Determinations issued by Western Area Power Administration-Desert Southwest Region.

  2. EIS-0439: Rice Solar Energy Project, Riverside County, California

    Broader source: Energy.gov [DOE]

    This environmental review was prepared by DOE’s Western Area Power Administration with the Department of the Interior’s Bureau of Land Management (BLM) as a cooperating agency. This EIS evaluates the environmental impacts of the Rice Solar Energy Project, a 150-megawatt solar concentrating electric powerplant proposed to be constructed on private land in the Sonoran Desert. DOE’s Western Area Power Administration actions under this proposal include building and operating a new substation to interconnect the solar project to Western’s transmission system. DOE may also use this EIS as part of its decision whether to issue a Federal loan guarantee to support the proposal. BLM’s actions under this proposal includes amending California Desert Conservation Area Plan to designate a new corridor for a 161-kV transmission line, which would facilitate the development of solar energy on private lands.

  3. New proposal for photovoltaic-thermal solar energy utilization method

    SciTech Connect (OSTI)

    Takashima, Takumi; Tanaka, Tadayoshi; Doi, Takuya ); Kamoshida, Junji ); Tani, Tatsuo ); Horigome, Takashi )

    1994-03-01

    One of the most effective methods of utilizing solar energy is to use the sunlight and solar thermal energy such as a photovoltaic-thermal panel (PV/T panel) simultaneously. From such a viewpoint, systems using various kinds of PV panels were constructed in the world. In these panels, solar cells are set up at an absorber collecting solar thermal energy. Therefore, temperature of solar cell increases up to the prescribed temperature of thermal energy use, although it is lower than the cell temperature when using only solar cell panel. For maintaining cell conversion efficiency at the standard conditions, it is necessary to keep the cell at lower temperature. In this paper, electric and thermal energy obtained form a PV/T panel is evaluated in terms of energy. BAsed on this evaluation, the method of not to decrease cell conversion efficiency with collecting solar thermal energy was proposed.

  4. System and method for aligning heliostats of a solar power tower

    DOE Patents [OSTI]

    Convery, Mark R.

    2013-01-01

    Disclosed is a solar power tower heliostat alignment system and method that includes a solar power tower with a focal area, a plurality of heliostats that each reflect sunlight towards the focal area of the solar power tower, an off-focal area location substantially close to the focal area of the solar power tower, a communication link between the off-focal area location and a misaligned heliostat, and a processor that interprets the communication between the off-focal area location and the misaligned heliostat to identify the misaligned heliostat from the plurality of heliostats and that determines a correction for the identified misaligned heliostat to realign the misaligned heliostat to reflect sunlight towards the focal area of the solar power tower.

  5. EA-1990: Ridgenose Solar Energy Interconnection Facility, Mohave County, Arizona

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration (Desert Southwest Region) is preparing an EA that will assess the potential environmental impacts of a proposal to interconnect the planned Ridgenose Solar Energy Project to Western’s transmission system. Western’s actions could include constructing less than a mile of new transmission line from the solar facility to an existing substation, constructing an interconnection substation, and adding, moving, or modifying structures.

  6. Solar Newsletter

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

    Sandia Labs Contributes to Solar Industry Innovation: A Partnership Story Customers & Partners, News, Partnership, Photovoltaic, Renewable Energy, Solar, Solar Newsletter Sandia ...

  7. EIS-0449: Department of Energy Loan Guarantee to Solar Millennium for the Proposed Blythe Solar Power Project, California

    Broader source: Energy.gov [DOE]

    This Environmental Impact Statement addresses the possible United States Bureau of Land Management approval of an amendment to the California Desert Conservation Area Plan (CDCA Plan) to allow for solar energy and of a right‐of‐way grant to lease land managed by the BLM for construction, operation and decommissioning of a solar electricity generation facility. The Agency Preferred Alternative covers approximately 7,025 acres (ac), managed by the BLM, and would generate 1000 megawatts (MW) of electricity annually.

  8. Desert View Highlands, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Desert View Highlands is a census-designated place in Los Angeles County, California.1...

  9. Desert Shores, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Desert Shores is a census-designated place in Imperial County, California.1 References ...

  10. 3rd Solar Fuels I-CORE Workshop (Israel) - JCAP

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

    3rd Solar Fuels I-CORE Workshop (Israel) 3rd Solar Fuels I-CORE Workshop (Israel) Mon, Sep 12, 2016 1:30pm 13:30 Thu, Sep 15, 2016 2:30pm 14:30 Nahsholim Israel Wednesday, 14 September 2016, 2:00 PM Functional semiconductors and interfaces for generating fuels from sunlight I. D. Sharp September 5 International Conference on Advances in Semiconductors and Catalysts for Photoelectrochemical Fuel Production SolarFuel16 (Berlin, Germany) October 2 PRiME 2016 (Honolulu, HI

  11. Ivanpah: World's Largest Concentrating Solar Power Plant | Department of

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

    Energy Ivanpah: World's Largest Concentrating Solar Power Plant Ivanpah: World's Largest Concentrating Solar Power Plant Addthis Aerial view, Ivanpah 1 of 5 Aerial view, Ivanpah An aerial view of the Ivanpah Solar Power Facility at sunrise, with left to right Tower 1, 2 and 3. Image: Gilles Mingasson/Getty Images for Bechtel Harnessing the Power of the Sun 2 of 5 Harnessing the Power of the Sun The top of Tower 1's is "lit" and sunlight reflected by mirrors floats in the air as a

  12. 2.20 Making Solar Energy More Affordable

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

    7 6/1/2011 2.20 Making Solar Energy More Affordable The cost of solar electricity has been reduced 100-fold over the past two decades, but further reductions are needed before solar power is widely used. Scientists at the National Renewable Energy Laboratory took major steps toward this goal by designing photovoltaic cells (which convert sunlight to electricity) with 30 percent efficiency, much higher than the 10-20 percent levels achieved previously. The new cells consist of thin layers of

  13. Hawaii Marine Base Installs Solar Roofs | Department of Energy

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

    Marine Base Installs Solar Roofs Hawaii Marine Base Installs Solar Roofs April 2, 2010 - 2:42pm Addthis Lorelei Laird Writer, Energy Empowers What does this project do? Marine Corps Base Hawaii replaced roofs on two buildings with polyvinyl chloride membrane 'cool' roofs and solar panels. The new roofs saves $20,000 a year in energy costs. Built on the end of the Mokapu Peninsula on Oahu's northeast coast, the Marine Corps Base Hawaii (MCBH) at Kaneohe Bay gets plenty of sunlight. But harnessing

  14. Solar Power Tower Design Basis Document, Revision 0

    SciTech Connect (OSTI)

    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.

  15. Effect of Fe doping concentration on photocatalytic activity of ZnO nanosheets under natural sunlight

    SciTech Connect (OSTI)

    Khokhra, Richa; Kumar, Rajesh

    2015-05-15

    A facile room temperature, aqueous solution-based chemical method has been adopted for large-scale synthesis of Fe doped ZnO nanosheets. The XRD and SEM results reveal the as-synthesized products well crystalline and accumulated by large amount of interweave nanosheets, respectively. Energy dispersive spectroscopy data confirmed Fe doping of the ZnO nanosheets with a varying Fe concentration. The photoluminescence spectrum reveals a continuous suppression of defect related emissions intensity by increasing the concentration of the Fe ion. A photocatalytic activity using these samples under sunlight irradiation in the mineralization of methylene blue dye was investigated. The photocatalytic activity of Fe doped ZnO nanosheets depends upon the presence of surface oxygen vacancies.

  16. Has sempra found El Dorado in solar PVs? grid parity may now be within reach

    SciTech Connect (OSTI)

    2009-03-15

    Instead of using conventional polycrystalline silicon modules that turn sunlight into electricity, these solar panels use cadmium telluride, a lower-cost semiconductor manufactured into thin-film cells that are cheaper to manufacture than their silicon-based counterparts. Electricity is being produced at costs as low as 7.5 {cents}/kWh.

  17. Solar Thermochemical Fuels Production: Solar Fuels via Partial Redox Cycles with Heat Recovery

    SciTech Connect (OSTI)

    2011-12-19

    HEATS Project: The University of Minnesota is developing a solar thermochemical reactor that will efficiently produce fuel from sunlight, using solar energy to produce heat to break chemical bonds. The University of Minnesota is envisioning producing the fuel by using partial redox cycles and ceria-based reactive materials. The team will achieve unprecedented solar-to-fuel conversion efficiencies of more than 10% (where current state-of-the-art efficiency is 1%) by combined efforts and innovations in material development, and reactor design with effective heat recovery mechanisms and demonstration. This new technology will allow for the effective use of vast domestic solar resources to produce precursors to synthetic fuels that could replace gasoline.

  18. NREL Funds Research into Low-Cost Solar Electricity

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

    Funds Research into Low-Cost Solar Electricity Media contact: George Douglas (303) 275-4096 e:mail: george_douglas@nrel.gov Golden, Colo., Dec. 8, 1997 -- C Contracts worth about $60 million over three years will be awarded under the Thin Film PV (photovoltaic) Partnership program at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL). Recipients of the money will research ways to lower the cost of producing electricity from sunlight using photovoltaic semiconductors that

  19. $6 Million in Awards to Advance Solar Cell Research

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

    $6 Million in Awards to Advance Solar Cell Research For more information contact: George Douglas, 303-275-4096 email: George Douglas Golden, Colo., Apr. 13, 2001 - The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) today announced $6 million in awards to 11 universities and five companies for high tech research into non-conventional, photovoltaic technologies for creating electricity from sunlight. Each award has the potential to create a breakthrough that could

  20. The Science | Center for Bio-Inspired Solar Fuel Production

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

    Science The Science The need for a continuous energy supply and energy requirements for transportation necessitates technology for storage of energy from sunlight in fuel, as well as conversion to electricity. Cost-effective technologies for solar fuel production do not exist, prompting the need for new fundamental science. Fuel production requires not only energy, but also a source of electrons and precursor materials suitable for reduction to useful fuels. Given the immense magnitude of the

  1. Solar energy integrated at Hawaiian military housing | Department of Energy

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

    Suzanne L. Singer Graduate Student Intern University of California, Berkeley DOE Program Review Meeting November 19, 2008 Heat Management for Energy Conversion * Heat to electricity: thermoelectrics * Sunlight to electricity: concentrated PV Solar/Wind hybrid - Kayenta, AZ with NTUA Systems power rural areas Navajo Tribe Wind Potential - Aubrey Cliffs, AZ with NTUA Met towers test wind potential Navajo Tribe Sustainable Building Materials in Peach Springs, AZ Earthship flexcrete Recyclable

  2. Snails, stable iostopes, and southwestern desert paleoclimates

    SciTech Connect (OSTI)

    Sharpe, S.E.; Whelan, J.F.; Forester, R.M.; Burdett, J.

    1995-09-01

    Modern and fossil molluscs (snails) occur in many localities in and semi-arid regions throughout the desert southwest. Live terrestrial snails are found under rocks and in forest litter and aquatic taxa inhabit springs, seeps, and/or wetlands. Molluscs uptake local water during their growing season (spring and summer) and incorporate its delta 180 signature into their shells. Preliminary 180 analysis of modem shells from the southern Great Basin indicates that the shells probably reflect meteoric water 180 values during the growing season. This provides a way to estimate the delta 180 value of precipitation and, thereby, the source of the moisture-bearing air masses. Significant 180 variability in shells analyzed include geographic location, elevation, taxonomy, and habitat (terrestrial, spring, or wetland). We found a rough inverse correlation with elevation in modem shells from the Spring Range in southern Nevada. The delta 180 values of modem and fossil shells are also very different; modem values in this location are much higher than those from nearby late Pleistocene-age molluscs suggesting that the Pleistocene summers were variously colder and wetter than today or less evaporative (more humid). Assuming shell material directly reflects the 180 of the growing-season environment, comparison of modem and fossil shell delta 180 values can potentially identify changes in air-mass moisture sources and can help to define seasonal precipitation change through time. Comprehension and quantification of community and isotopic variability in modem gastropods is required to create probabilistic valid transfer functions with fossil materials. Valid inferences about past environmental conditions can then be established with known confidence limits.

  3. PSInSAR At San Emidio Desert Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    PSInSAR At San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: PSInSAR At San Emidio Desert Area (DOE GTP)...

  4. EA-1912: Midway-Benton No. 1 Rebuild Project, near town of Desert...

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

    Midway-Benton No. 1 Rebuild Project, near town of Desert Aire, Benton County, WA EA-1912: Midway-Benton No. 1 Rebuild Project, near town of Desert Aire, Benton County, WA...

  5. Solar photochemical production of HBr for off-peak electrolytic hydrogen production

    SciTech Connect (OSTI)

    Heaton, H.

    1996-10-01

    Progress is reported on the development of a unique and innovative hydrogen production concept utilizing renewable (Solar) energy and incorporating energy storage. The concept is based on a solar-electrolytic system for production of hydrogen and oxygen. It employs water, bromine, solar energy, and supplemental electrical power. The process consumes only water, sunlight and off-peak electricity, and produces only hydrogen, oxygen, and peaking electrical power. No pollutants are emitted, and fossil fuels are not consumed. The concept is being developed by Solar Reactor Technologies, Inc., (SRT) under the auspices of a Cooperative Agreement with the U.S. Department of Energy (DOE).

  6. Realizing InGaN monolithic solar-photoelectrochemical cells for artificial photosynthesis

    SciTech Connect (OSTI)

    Dahal, R.; Pantha, B. N.; Li, J.; Lin, J. Y.; Jiang, H. X., E-mail: hx.jiang@ttu.edu [Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409 (United States)

    2014-04-07

    InGaN alloys are very promising for solar water splitting because they have direct bandgaps that cover almost the whole solar spectrum. The demonstration of direct solar-to-fuel conversion without external bias with the sunlight being the only energy input would pave the way for realizing photoelectrochemical (PEC) production of hydrogen by using InGaN. A monolithic solar-PEC cell based on InGaN/GaN multiple quantum wells capable to directly generate hydrogen gas under zero bias via solar water splitting is reported. Under the irradiation by a simulated sunlight (1-sun with 100 mW/cm{sup 2}), a 1.5% solar-to-fuel conversion efficiency has been achieved under zero bias, setting a fresh benchmark of employing III-nitrides for artificial photosynthesis. Time dependent hydrogen gas production photocurrent measured over a prolonged period (measured for 7 days) revealed an excellent chemical stability of InGaN in aqueous solution of hydrobromic acid. The results provide insights into the architecture design of using InGaN for artificial photosynthesis to provide usable clean fuel (hydrogen gas) with the sunlight being the only energy input.

  7. Science on the Hill: Fragile life underfoot has big impact on desert

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

    Fragile life underfoot has big impact on desert Fragile life underfoot has big impact on desert Anyone who spends time in the high-desert landscape of Northern New Mexico has come across biological soil crusts, or biocrusts. This fragile crust fills a pivotal ecosystem niche. However, its survival is being challenged by threats from climate change and man-made disturbance. June 13, 2016 Science on the Hill: Fragile life underfoot has big impact on desert For years, space scientists thought the

  8. Agreement Moves Nevada Solar Plant Step Closer to Reality

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

    Moves Nevada Solar Plant Step Closer to Reality For more information contact: Kerry Masson 303/275-4083 e:mail: Public Affairs Golden, Colo., Oct. 3, 1996 -- The transformation of a Nevada desert into a showcase for solar energy took a step forward today with the signing of an agreement between the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) and the Corporation for Solar Technology and Renewable Resources (CSTRR) of Las Vegas, Nev. CSTRR is the not-for-profit

  9. CdTe portfolio offers commercial ready high efficiency solar - Energy

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

    Innovation Portal Find More Like This Return to Search CdTe portfolio offers commercial ready high efficiency solar National Renewable Energy Laboratory Contact NREL About This Technology Publications: PDF Document Publication MktgSummary CdTe.pdf (117 KB) Schematic illustration of a typical CdTe superstrate thin-film PV device. In this design, the layers of the device are deposited onto a glass "superstrate" that allows sunlight to enter. The sunlight passes through the

  10. Scattering Solar Thermal Concentrators

    SciTech Connect (OSTI)

    Giebink, Noel C.

    2015-01-31

    This program set out to explore a scattering-based approach to concentrate sunlight with the aim of improving collector field reliability and of eliminating wind loading and gross mechanical movement through the use of a stationary collection optic. The approach is based on scattering sunlight from the focal point of a fixed collection optic into the confined modes of a sliding planar waveguide, where it is transported to stationary tubular heat transfer elements located at the edges. Optical design for the first stage of solar concentration, which entails focusing sunlight within a plane over a wide range of incidence angles (>120 degree full field of view) at fixed tilt, led to the development of a new, folded-path collection optic that dramatically out-performs the current state-of-the-art in scattering concentration. Rigorous optical simulation and experimental testing of this collection optic have validated its performance. In the course of this work, we also identified an opportunity for concentrating photovoltaics involving the use of high efficiency microcells made in collaboration with partners at the University of Illinois. This opportunity exploited the same collection optic design as used for the scattering solar thermal concentrator and was therefore pursued in parallel. This system was experimentally demonstrated to achieve >200x optical concentration with >70% optical efficiency over a full day by tracking with <1 cm of lateral movement at fixed latitude tilt. The entire scattering concentrator waveguide optical system has been simulated, tested, and assembled at small scale to verify ray tracing models. These models were subsequently used to predict the full system optical performance at larger, deployment scale ranging up to >1 meter aperture width. Simulations at an aperture widths less than approximately 0.5 m with geometric gains ~100x predict an overall optical efficiency in the range 60-70% for angles up to 50 degrees from normal. However, the

  11. Laser beam apparatus and method for analyzing solar cells

    DOE Patents [OSTI]

    Staebler, David L.

    1980-01-01

    A laser beam apparatus and method for analyzing, inter alia, the current versus voltage curve at the point of illumination on a solar cell and the open circuit voltage of a solar cell. The apparatus incorporates a lock-in amplifier, and a laser beam light chopper which permits the measurement of the AC current of the solar cell at an applied DC voltage at the position on the solar cell where the cell is illuminated and a feedback scheme which permits the direct scanning measurements of the open circuit voltage. The accuracy of the measurement is a function of the intensity and wavelength of the laser light with respect to the intensity and wavelength distribution of sunlight and the percentage the dark current is at the open circuit voltage to the short circuit current of the solar cell.

  12. Solar Newsletter

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

    Stationary Power/Energy Conversion Efficiency/Solar Energy/Solar Newsletter Solar Newsletter Tara Camacho-Lopez 2016-07-11T20:14:36+00:00

  13. Solar Easements

    Broader source: 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...

  14. Sunlight-Driven Hydrogen Formation by Membrane-Supported Photoelectrochemical Water Splitting

    SciTech Connect (OSTI)

    Lewis, Nathan S.

    2014-03-26

    This report describes the significant advances in the development of the polymer-supported photoelectrochemical water-splitting system that was proposed under DOE grant number DE-FG02-05ER15754. We developed Si microwire-array photoelectrodes, demonstrated control over the material and light-absorption properties of the microwire-array photoelectrodes, developed inexpensive processes for synthesizing the arrays, and doped the arrays p-type for use as photocathodes. We also developed techniques for depositing metal-nanoparticle catalysts of the hydrogen-evolution reaction (HER) on the wire arrays, investigated the stability and catalytic performance of the nanoparticles, and demonstrated that Ni-Mo alloys are promising earth-abundant catalysts of the HER. We also developed methods that allow reuse of the single-crystalline Si substrates used for microwire growth and methods of embedding the microwire photocathodes in plastic to enable large-scale processing and deployment of the technology. Furthermore we developed techniques for controlling the structure of WO3 films, and demonstrated that structural control can improve the quantum yield of photoanodes. Thus, by the conclusion of this project, we demonstrated significant advances in the development of all components of a sunlight-driven membrane-supported photoelectrochemical water-splitting system. This final report provides descriptions of some of the scientific accomplishments that were achieved under the support of this project and also provides references to the peer-reviewed publications that resulted from this effort.

  15. On identifying the specular reflection of sunlight in earth-monitoring satellite data.

    SciTech Connect (OSTI)

    Nelsen, James M., Jr.; Hohlfelder, Robert James; Jackson, Dale Clayton; Longenbaugh, Randolph S.

    2009-03-01

    Among the background signals commonly seen by Earth-monitoring satellites is the specular reflection of sunlight off of Earth's surface, commonly referred to as a glint. This phenomenon, involving liquid or ice surfaces, can result in the brief, intense illumination of satellite sensors appearing from the satellite perspective to be of terrestrial origin. These glints are important background signals to be able to identify with confidence, particularly in the context of analyzing data from satellites monitoring for transient surface or atmospheric events. Here we describe methods for identifying glints based on the physical processes involved in their production, including spectral fitting and polarization measurements. We then describe a tool that, using the WGS84 spheroidal Earth model, finds the latitude and longitude on Earth where a reflection of this type could be produced, given input Sun and satellite coordinates. This tool enables the user to determine if the surface at the solution latitude and longitude is in fact reflective, thus identifying the sensor response as a true glint or an event requiring further analysis.

  16. Building Design Guidelines for Solar Energy Technologies

    DOE R&D Accomplishments [OSTI]

    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.

  17. First Solar Manufacturing Solar Modules

    Broader source: 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...

  18. Region Solar Inc Solar Inc California Renewable Energy Solar...

    Open Energy Info (EERE)

    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...

  19. NREL: Solar Research - Solar Newsletter

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

    Solar Newsletter Subscribe: To receive new issues by email, subscribe to the newsletter. The Solar Newsletter is a monthly electronic newsletter that provides information on NREL's ...

  20. Hybrid Solar Lighting Provides Energy Savings and Reduces Waste Heat

    SciTech Connect (OSTI)

    Lapsa, Melissa Voss; Maxey, L Curt; Earl, Dennis Duncan; Beshears, David L; Ward, Christina D; Parks, James Edgar

    2006-01-01

    ABSTRACT Artificial lighting is the largest component of electricity use in commercial U.S. buildings. Hybrid solar lighting (HSL) provides an exciting new means of reducing energy consumption while also delivering significant ancillary benefits associated with natural lighting in buildings. As more than half of all federal facilities are in the Sunbelt region (defined as having an average direct solar radiation of greater than 4 kWh/m2/day) and as more than half of all square footage available in federal buildings is also in the Sunbelt, HSL is an excellent technology fit for federal facilities. The HSL technology uses a rooftop, 4-ft-wide dish and secondary mirror that track the sun throughout the day (Fig. 1). The collector system focuses the sunlight onto 127 optical fibers. The fibers serve as flexible light pipes and are connected to hybrid light fixtures that have special diffusion rods that spread out the light in all directions. One collector powers about eight hybrid light fixtures-which can illuminate about 1,000 square feet. The system tracks at 0.1 accuracy, required by the two-mirror geometry to keep the focused beam on the fiber bundle. When sunlight is plentiful, the optical fibers in the luminaires provide all or most of the light needed in an area. During times of little or no sunlight, a sensor controls the intensity of the artificial lamps to maintain a desired illumination level. Unlike conventional electric lamps, the natural light produces little to no waste heat and is cool to the touch. This is because the system's solar collector removes the infrared light-the part of the spectrum that generates a lot of the heat in conventional bulbs-from the sunlight.

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

    SciTech Connect (OSTI)

    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.

  2. A path to practical Solar Pumped Lasers via Radiative Energy Transfer

    SciTech Connect (OSTI)

    Reusswig, Philip D.; Nechayev, Sergey; Scherer, Jennifer M.; Hwang, Gyu Weon; Bawendi, Moungi G.; Baldo, Marc. A.; Rotschild, Carmel

    2015-10-05

    The optical conversion of incoherent solar radiation into a bright, coherent laser beam enables the application of nonlinear optics to solar energy conversion and storage. Here, we present an architecture for solar pumped lasers that uses a luminescent solar concentrator to decouple the conventional trade-off between solar absorption efficiency and the mode volume of the optical gain material. We report a 750-μm-thick Nd 3+ -doped YAG planar waveguide sensitized by a luminescent CdSe/CdZnS (core/shell) colloidal nanocrystal, yielding a peak cascade energy transfer of 14%, a broad spectral response in the visible portion of the solar spectrum, and an equivalent quasi-CW solar lasing threshold of 23 W-cm-2, or approximately 230 suns. The efficient coupling of incoherent, spectrally broad sunlight in small gain volumes should allow the generation of coherent laser light from intensities of less than 100 suns.

  3. A path to practical Solar Pumped Lasers via Radiative Energy Transfer

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Reusswig, Philip D.; Nechayev, Sergey; Scherer, Jennifer M.; Hwang, Gyu Weon; Bawendi, Moungi G.; Baldo, Marc. A.; Rotschild, Carmel

    2015-10-05

    The optical conversion of incoherent solar radiation into a bright, coherent laser beam enables the application of nonlinear optics to solar energy conversion and storage. Here, we present an architecture for solar pumped lasers that uses a luminescent solar concentrator to decouple the conventional trade-off between solar absorption efficiency and the mode volume of the optical gain material. We report a 750-μm-thick Nd 3+ -doped YAG planar waveguide sensitized by a luminescent CdSe/CdZnS (core/shell) colloidal nanocrystal, yielding a peak cascade energy transfer of 14%, a broad spectral response in the visible portion of the solar spectrum, and an equivalent quasi-CWmore » solar lasing threshold of 23 W-cm-2, or approximately 230 suns. The efficient coupling of incoherent, spectrally broad sunlight in small gain volumes should allow the generation of coherent laser light from intensities of less than 100 suns.« less

  4. Direct Current - An Energy.gov Podcast | Department of Energy

    Energy Savers [EERE]

    Utility-scale PV Solar Market | Department of Energy Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market February 9, 2015 - 12:01am Addthis In 2011, LPO issued loan guarantees to the first 5 PV projects larger than 100 MW in the U.S. An additional 17 projects have been financed since without loan guarantees. In 2011, LPO issued loan

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

  8. Two-axis tracking solar collector mechanism

    DOE Patents [OSTI]

    Johnson, K.C.

    1992-12-08

    This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion. 16 figs.

  9. Two-axis tracking solar collector mechanism

    DOE Patents [OSTI]

    Johnson, Kenneth C.

    1992-01-01

    This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

  10. Two-axis tracking solar collector mechanism

    DOE Patents [OSTI]

    Johnson, Kenneth C.

    1990-01-01

    This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

  11. NREL, CSEM Jointly Set New Efficiency Record with Dual-Junction Solar Cell

    SciTech Connect (OSTI)

    2016-01-01

    Scientists set a new world record for converting non-concentrated sunlight into electricity using a dual-junction III-V/Si solar cell. National Renewable Energy Laboratory (NREL) and Swiss Center for Electronics and Microtechnology (CSEM) scientists have collaborated to create a novel tandem solar cell that operates at 29.8% conversion efficiency under non-concentrator (1-sun) conditions. In comparison, the 1-sun efficiency of a silicon (Si) single-junction solar cell is probably still a few years away from converging on its practical limit of about 26%.

  12. Award-Winning Etching Process Cuts Solar Cell Costs (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01

    NREL scientists have invented the 'black silicon' nanocatalytic wet-chemical etch, an inexpensive, one-step process that literally turns the solar cells black, allowing them to absorb more than 98% of incident sunlight. The process costs just a few cents per watt of solar-cell power-producing capacity. Increases in manufactured cell efficiencies of up to 0.8% are possible because of the reduced reflectance of black silicon. This would reduce silicon solar module costs by $5-$10 per module.

  13. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    R&D Magazine: Windows into Solar Power Sources with Quantum Dots August 30, 2015 R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt the way we think about energy: It could turn any window into a daytime power source. "In these devices, a fraction of light transmitted through the window is absorbed by nano-sized particles (semiconductor quantum dots)

  14. Solar Power

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

  15. ImagineSolar | Open Energy Information

    Open Energy Info (EERE)

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

  16. Solar Manufacturing Projects | Department of Energy

    Office of Environmental Management (EM)

    Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects SOLAR ...

  17. Desert Peak East EGS Project; 2010 Geothermal Technology Program Peer

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

    Review Report | Department of Energy East EGS Project; 2010 Geothermal Technology Program Peer Review Report Desert Peak East EGS Project; 2010 Geothermal Technology Program Peer Review Report DOE 2010 Geothermal Technologies Program Peer Review egs_008_zemach.pdf (182.67 KB) More Documents & Publications Feasibility of EGS Development at Bradys Hot Springs, Nevada Concept Testing and Development at the Raft River Geothermal Field, Idaho Creation of an Enhanced Geothermal System

  18. The Mystery of the Gun Turret in the Desert

    SciTech Connect (OSTI)

    Hoffman, R. D.

    2015-11-30

    The mystery of the gun turret in the desert began with an ingenious idea: to develop a reusable open-air line of sight diagnostic device to support LLNL’s early nuclear weapons development efforts. Obtained from the Mare Island Navy Shipyard (MINS) in January 1957, the gun turret traveled by ship to the Naval Construction Battalion base at Port Hueneme, California, and then by truck to Area 2 in the Yucca Flats valley at the Nevada Nuclear Security Site (NNSS).

  19. Solar Rights

    Broader source: 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...

  20. 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

  1. Solar Rights

    Broader source: Energy.gov [DOE]

    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...

  2. Solar Rights

    Broader source: 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...

  3. Solar Forecasting

    Broader source: 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....

  4. Solar collectors

    SciTech Connect (OSTI)

    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.

  5. EIS-0448: Final Environmental Impact Statement | Department of Energy

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

    8: Final Environmental Impact Statement EIS-0448: Final Environmental Impact Statement Desert Sunlight Solar Farm Project, California This Plan Amendment/Final Environmental Impact Statement (PA/FEIS) addresses the possible United States Bureau of Land Management (BLM) approval of an amendment to the California Desert Conservation Area Plan (CDCA Plan) to allow for solar energy and of a right-of-way (ROW) grant to lease land managed by the BLM for construction, operation and decommissioning of a

  6. The effects of concentrated ultraviolet light on high-efficiency silicon solar cells

    SciTech Connect (OSTI)

    Ruby, D.S.; Schubert, W.K.

    1991-01-01

    The importance of stability in the performance of solar cells is clearly recognized as fundamental. Some of the highest efficiency silicon solar cells demonstrated to date, such as the Point Contact solar cell and the Passivated Emitter solar cell, rely upon the passivation of cell surfaces in order to minimize recombination, which reduces cell power output. Recently, it has been shown that exposure to ultraviolet (UV) light of wavelengths present in the terrestrial solar spectrum can damage a passivating silicon-oxide interface and increase recombination. In this study, we compared the performance of Point Contact and Passivated Emitter solar cells after exposure to UV light. We also examined the effect of UV exposure on oxide-passivated silicon wafers. We found that current Passivated Emitter designs are stable at both one-sun and under concentrated sunlight. The evolution of Point Contact concentrator cell performance shows a clear trend towards more stable cells. 15 refs., 18 figs.

  7. Fire Impacts on the Mojave Desert Ecosystem: Literature Review

    SciTech Connect (OSTI)

    Fenstermaker Lynn

    2012-01-01

    The Nevada National Security Site (NNSS) is located within the Mojave Desert, which is the driest region in North America. Precipitation on the NNSS varies from an annual average of 130 millimeters (mm; 5.1 inches) with a minimum of 47 mm (1.9 inches) and maximum of 328 mm (12.9 inches) over the past 15 year period to an annual average of 205 mm (8.1 inches) with an annual minimum of 89 mm (3.5 inches) and maximum of 391 mm (15.4 inches) for the same time period; for a Frenchman Flat location at 970 meters (m; 3182 feet) and a Pahute Mesa location at 1986 m (6516 feet), respectively. The combination of aridity and temperature extremes has resulted in sparsely vegetated basins (desert shrub plant communities) to moderately vegetated mountains (mixed coniferous forest plant communities); both plant density and precipitation increase with increasing elevation. Whereas some plant communities have evolved under fire regimes and are dependent upon fire for seed germination, plant communities within the Mojave Desert are not dependent on a fire regime and therefore are highly impacted by fire (Brown and Minnich, 1986; Brooks, 1999). As noted by Johansen (2003) natural range fires are not prevalent in the Mojave and Sonoran Deserts because there is not enough vegetation present (too many shrub interspaces) to sustain a fire. Fire research and hence publications addressing fires in the Southwestern United States (U.S.) have therefore focused on forest, shrub-steppe and grassland fires caused by both natural and anthropogenic ignition sources. In the last few decades, however, invasion of mid-elevation shrublands by non-native Bromus madritensis ssp. rubens and Bromus tectorum (Hunter, 1991) have been highly correlated with increased fire frequency (Brooks and Berry, 2006; Brooks and Matchett, 2006). Coupled with the impact of climate change, which has already been shown to be playing a role in increased forest fires (Westerling et al., 2006), it is likely that the fire

  8. Improved high temperature solar absorbers for use in Concentrating Solar Power central receiver applications.

    SciTech Connect (OSTI)

    Stechel, Ellen Beth; Ambrosini, Andrea; Hall, Aaron Christopher; Lambert, Timothy L.; Staiger, Chad Lynn; Bencomo, Marlene

    2010-09-01

    Concentrating solar power (CSP) systems use solar absorbers to convert the heat from sunlight to electric power. Increased operating temperatures are necessary to lower the cost of solar-generated electricity by improving efficiencies and reducing thermal energy storage costs. Durable new materials are needed to cope with operating temperatures >600 C. The current coating technology (Pyromark High Temperature paint) has a solar absorptance in excess of 0.95 but a thermal emittance greater than 0.8, which results in large thermal losses at high temperatures. In addition, because solar receivers operate in air, these coatings have long term stability issues that add to the operating costs of CSP facilities. Ideal absorbers must have high solar absorptance (>0.95) and low thermal emittance (<0.05) in the IR region, be stable in air, and be low-cost and readily manufacturable. We propose to utilize solution-based synthesis techniques to prepare intrinsic absorbers for use in central receiver applications.

  9. Considering the total cost of electricity from sunlight and the alternatives

    SciTech Connect (OSTI)

    Fthenakis, Vasilis

    2015-03-01

    Photovoltaic (PV) electricity generation has grown to about 17 GW in the United States, corresponding to one tenth of the global capacity. Most deployment in the country has happened during the last 6 years. Reflecting back, in early 2008 this author and his collaborators James Mason and Ken Zweibel, published in Scientific American and in Energy Policy a Solar Grand Plan demonstrating the feasibility of renewable energy in providing 69% of the United States electricity demand by 2050, while reducing CO2 emissions by 60% from 2005 levels; the PV contribution to this plan was assessed to be 250 GW by 2030 and 2900 GW by 2050 [1]. The DOE's more detailed SunShot vision study, released in 2012, showed the possibility of having 300 GW of PV installed in the United States by 2030, and 630 GW by 2050. Assessing the sustainability of such rapid growth of photovoltaics necessitates undertaking a careful analysis because PV markets largely are enabled by its promise to produce reliable electricity with minimum environmental burdens. Measurable aspects of sustainability include cost, resource availability, and environmental impact. The question of cost concerns the affordability of solar energy compared to other energy sources throughout the world. Environmental impacts include local-, regional-, and global-effects, as well as the usage of land and water, which must be considered in a comparable context over a long time, multigenerational horizon. As a result, the availability of material resources matters to current and future-generations under the constraint of affordability.

  10. Purchasing Solar Collectively with Solarize

    Broader source: Energy.gov [DOE]

    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...

  11. Stepout-Deepening Wells At San Emidio Desert Area (DOE GTP) ...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Stepout-Deepening Wells At San Emidio Desert Area (DOE GTP) Exploration Activity Details Location San Emidio...

  12. 2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) | Open Energy...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) Exploration Activity Details Location...

  13. Flow Test At San Emidio Desert Area (DOE GTP) | Open Energy Informatio...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At San Emidio Desert Area (DOE GTP) Exploration Activity Details Location San Emidio...

  14. C A L I F O R N I A E N E R G Y C O M...

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

    ... Desert Sunlight Solar Project 550 MW Riverside County, CA The World's Largest Thin Film Solar PV Project 32 C A L I F O R N I A E N E R G Y C O M M I S S I O N The World's Largest ...

  15. Adhesive for solar control film

    SciTech Connect (OSTI)

    Penn, H.J.

    1984-01-31

    A water-activatable adhesive useful for adhering a solar film, polyester (polyethylene terephthalate) film, to glass or to metal substrates. The adhesive comprises the reacted product of (A) gamma-isocyanatopropyltriethoxy silane, containing a free isocyanate (NCO) group, and (B) a thermoplastic polyester formed by reacting (i) a dibasic acid selected from the group consisting of terephthalic acid, isophthalic acid and hexahydrophthalic acid, and mixtures thereof, with (ii) a polymethylene glycol of the formula HO(CH/sub 2/) /SUB x/ OH where x is an integer from 2 to 10, neopentyl glycol and glycerin, and mixtures thereof, and (iii) an aliphatic dibasic acid selected from the group consisting of those having the formula HOOC(CH/sub 2/) /SUB n/ COOH where n is an integer from 1 to 8, and mixtures of such acids, whereby substantially no free NCO remains in the adhesive. Solar film is used for absorbing and/or reflecting solar radiation. Solar film can be a single sheet of polyester dyed sufficiently to absorb the glare of bright sunlight, or it can be a single sheet of polyester, on one side of which a reflective metal (most often aluminum) is deposited in an amount which can be totally reflective or in an amount which still allows visible light transmission and over which a protective coating is deposited, or it can be a laminated structure of the reflective film adhered to a clear or dyed polyester film by which means the reflective metal is sandwiched between two layers of polyester film, or it can be a laminated structure of a reflective film to a polyolefin film.

  16. Apparatus for solar coal gasification

    DOE Patents [OSTI]

    Gregg, D.W.

    1980-08-04

    Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials is described. Incident solar radiation is focused from an array of heliostats through a window onto the surface of a moving bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called synthesis gas, which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam in one embodiment at the rear surface of a secondary mirror used to redirect the focused sunlight. Another novel feature of the invention is the location and arrangement of the array of mirrors on an inclined surface (e.g., a hillside) to provide for direct optical communication of said mirrors and the carbonaceous feed without a secondary redirecting mirror.

  17. Considering the total cost of electricity from sunlight and the alternatives

    SciTech Connect (OSTI)

    none,

    2015-04-15

    Photovoltaic (PV) electricity generation has grown to about 17 GW in the United States, corresponding to one tenth of the global capacity. Most deployment in the country has happened during the last 6 years. Reflecting back in time, in early 2008 this author and his collaborators James Mason and Ken Zweibel, published in Scientific American and in Energy Policy a Solar Grand Plan demonstrating the feasibility of renewable energy in providing 69% of the U.S. electricity demand by 2050, while reducing CO2 emissions by 60% from 2005 levels; the PV contribution to this plan was assessed to be 250 GW by 2030, and 2,900 GW by 2050 [1]. The DOEs more detailed SunShot vision study, released in 2012, showed the possibility of having 300 GW of PV installed in the United States by 2030, and 630 GW by 2050.

  18. Considering the total cost of electricity from sunlight and the alternatives

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    none,

    2015-04-15

    Photovoltaic (PV) electricity generation has grown to about 17 GW in the United States, corresponding to one tenth of the global capacity. Most deployment in the country has happened during the last 6 years. Reflecting back in time, in early 2008 this author and his collaborators James Mason and Ken Zweibel, published in Scientific American and in Energy Policy a Solar Grand Plan demonstrating the feasibility of renewable energy in providing 69% of the U.S. electricity demand by 2050, while reducing CO2 emissions by 60% from 2005 levels; the PV contribution to this plan was assessed to be 250 GWmore » by 2030, and 2,900 GW by 2050 [1]. The DOE’s more detailed SunShot vision study, released in 2012, showed the possibility of having 300 GW of PV installed in the United States by 2030, and 630 GW by 2050.« less

  19. Considering the total cost of electricity from sunlight and the alternatives

    SciTech Connect (OSTI)

    none,

    2015-04-15

    Photovoltaic (PV) electricity generation has grown to about 17 GW in the United States, corresponding to one tenth of the global capacity. Most deployment in the country has happened during the last 6 years. Reflecting back in time, in early 2008 this author and his collaborators James Mason and Ken Zweibel, published in Scientific American and in Energy Policy a Solar Grand Plan demonstrating the feasibility of renewable energy in providing 69% of the U.S. electricity demand by 2050, while reducing CO2 emissions by 60% from 2005 levels; the PV contribution to this plan was assessed to be 250 GW by 2030, and 2,900 GW by 2050 [1]. The DOE’s more detailed SunShot vision study, released in 2012, showed the possibility of having 300 GW of PV installed in the United States by 2030, and 630 GW by 2050.

  20. Considering the total cost of electricity from sunlight and the alternatives

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fthenakis, Vasilis

    2015-03-01

    Photovoltaic (PV) electricity generation has grown to about 17 GW in the United States, corresponding to one tenth of the global capacity. Most deployment in the country has happened during the last 6 years. Reflecting back, in early 2008 this author and his collaborators James Mason and Ken Zweibel, published in Scientific American and in Energy Policy a Solar Grand Plan demonstrating the feasibility of renewable energy in providing 69% of the United States electricity demand by 2050, while reducing CO2 emissions by 60% from 2005 levels; the PV contribution to this plan was assessed to be 250 GW bymore » 2030 and 2900 GW by 2050 [1]. The DOE's more detailed SunShot vision study, released in 2012, showed the possibility of having 300 GW of PV installed in the United States by 2030, and 630 GW by 2050. Assessing the sustainability of such rapid growth of photovoltaics necessitates undertaking a careful analysis because PV markets largely are enabled by its promise to produce reliable electricity with minimum environmental burdens. Measurable aspects of sustainability include cost, resource availability, and environmental impact. The question of cost concerns the affordability of solar energy compared to other energy sources throughout the world. Environmental impacts include local-, regional-, and global-effects, as well as the usage of land and water, which must be considered in a comparable context over a long time, multigenerational horizon. As a result, the availability of material resources matters to current and future-generations under the constraint of affordability.« less

  1. Solar power system

    SciTech Connect (OSTI)

    Mcgrew, S.P.

    1980-05-27

    A system for generating electrical power from sunlight, comprises a focussing diffraction grating or other focussing, spectrally dispersive means and a photocell array. The diffraction grating focuses sunlight into a spectrally dispersed band. The photocell array is composed of cells with different spectral sensitivities, located in positions in the dispersed band corresponding to the cell spectral sensitivities so that the net conversion efficiency of sunlight to electricity exceeds the conversion efficiency attainable with nondispersive collectors and single material photocells. Alternate embodiments of the invention provide sun tracking means, reflective or transmissive diffraction gratings, flat or curved diffraction grating surfaces , on- or off-axis focus, and optical coatings on the photocell surfaces.

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

  4. 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 ...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

  11. El Dorado Solar Project Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    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...

  12. Solar tests of aperture plate materials for solar thermal dish collectors

    SciTech Connect (OSTI)

    Jaffe, L.D.

    1983-08-15

    In parabolic dish solar collectors, walk-off of the spot of concentrated sunlight can be a hazard if a malfunction causes the concentration to stop following the sun. Therefore, a test program was carried out to evaluate the behavior of various ceramics, metals, and polymers under solar irradiation of about 7000 kW/m/sup 2/ (peak) for 15 minutes. The only materials that did not slump or shatter were two grades of medium-grain extruded graphite. High-purity, slip-cast silica might be satisfactory at somewhat lower flux. Oxidation of the graphite appeared acceptable during tests simulating walk-off, acquisition (2000 cycles on/off sun), and spillage (continuous on-sun operation).

  13. 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 ...

  14. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  15. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  16. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  17. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  18. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  19. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  20. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the discovery of mixed domains of donor and acceptor molecules, many have pictured the excitons' journey as easy

  1. High-Temperature High-Efficiency Solar Thermoelectric Generators

    SciTech Connect (OSTI)

    Baranowski, LL; Warren, EL; Toberer, ES

    2014-03-01

    Inspired by recent high-efficiency thermoelectric modules, we consider thermoelectrics for terrestrial applications in concentrated solar thermoelectric generators (STEGs). The STEG is modeled as two subsystems: a TEG, and a solar absorber that efficiently captures the concentrated sunlight and limits radiative losses from the system. The TEG subsystem is modeled using thermoelectric compatibility theory; this model does not constrain the material properties to be constant with temperature. Considering a three-stage TEG based on current record modules, this model suggests that 18% efficiency could be experimentally expected with a temperature gradient of 1000A degrees C to 100A degrees C. Achieving 15% overall STEG efficiency thus requires an absorber efficiency above 85%, and we consider two methods to achieve this: solar-selective absorbers and thermally insulating cavities. When the TEG and absorber subsystem models are combined, we expect that the STEG modeled here could achieve 15% efficiency with optical concentration between 250 and 300 suns.

  2. NREL: Concentrating Solar Power Research - Concentrating Solar...

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

  3. Building design guidelines for solar energy technologies

    SciTech Connect (OSTI)

    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.

  4. Solar Newsletter

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

  5. Solar Mapper

    Broader source: Energy.gov [DOE]

    Interactive, online mapping tool providing access to spatial data related to siting utility-scale solar facilities in the southwestern United States.

  6. Solar Newsletter

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

  7. Solar Newsletter

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

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

  8. Solar Decathlon

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

    ... Administration and DOE EERE International Program: Solar Decathlon China 2013 16 | Building Technologies Office eere.energy.gov Project Integration, Collaboration & Market Impact ...

  9. Solar Rights

    Broader source: 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 (...

  10. Concentrating Solar Power: Best Practices Handbook for the Collection and Use of Solar Resource Data (CSP)

    SciTech Connect (OSTI)

    Stoffel, T.; Renne, D.; Myers, D.; Wilcox, S.; Sengupta, M.; George, R.; Turchi, C.

    2010-09-01

    As the world looks for low-carbon sources of energy, solar power stands out as the most abundant energy resource. Harnessing this energy is the challenge for this century. Photovoltaics and concentrating solar power (CSP) are two primary forms of electricity generation using sunlight. These use different technologies, collect different fractions of the solar resource, and have different siting and production capabilities. Although PV systems are most often deployed as distributed generation sources, CSP systems favor large, centrally located systems. Accordingly, large CSP systems require a substantial investment, sometimes exceeding $1 billion in construction costs. Before such a project is undertaken, the best possible information about the quality and reliability of the fuel source must be made available. That is, project developers need to have reliable data about the solar resource available at specific locations to predict the daily and annual performance of a proposed CSP plant. Without these data, no financial analysis is possible. This handbook presents detailed information about solar resource data and the resulting data products needed for each stage of the project.

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

    SciTech Connect (OSTI)

    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.

  12. Effects of angular confinement and concentration to realistic solar cells

    SciTech Connect (OSTI)

    Höhn, O. Kraus, T.; Bläsi, B.; Schwarz, U. T.

    2015-01-21

    In standard solar cells, light impinges under a very small angular range, whereas the solar cell emits light into the whole half space. Due to this expansion of etendué, entropy is generated, which limits the maximal efficiency of solar cells. This limit can be overcome by either increasing the angle of incidence by concentration or by decreasing the angle of emission by an angularly confining element or by a combination of both. In an ideal solar cell with radiative recombination as the only loss mechanism, angular confinement and concentration are thermodynamically equivalent. It is shown that concentration in a device, where non-radiative losses such as Shockley-Read-Hall and Auger recombination are considered, is not equivalent to angular confinement. As soon as non-radiative losses are considered, the gain in efficiency due to angular confinement drops significantly in contrast to the gain caused by concentration. With the help of detailed balance calculations, it is furthermore shown that angular confinement can help to increase the efficiency of solar cells under concentrated sunlight even if no measurable gain is expected for the solar cell under 1-sun-illumination. Our analysis predicts a relative gain of 3.14% relative in efficiency for a realistic solar cell with a concentration factor of 500.

  13. Unified Solar

    Broader source: 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.

  14. Sandia Energy - Solar Resource Assessment

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

    Solar Resource Assessment Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Resource Assessment Solar Resource AssessmentTara...

  15. Sandia Energy - Solar Market Transformation

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

    Solar Market Transformation Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Solar Market TransformationTara...

  16. The Importance of Domain Size and Purity in High-Efficiency Organic Solar

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

    Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells The Importance of Domain Size and Purity in High-Efficiency Organic Solar Cells Print Wednesday, 27 March 2013 00:00 The efficiency of polymer/organic photovoltaic cells hinges on excitons-electron/hole pairs energized by sunlight-getting to the interfaces of donor and acceptor domains quickly, before recombining. At the interfaces, they become free charges that must then reach device electrodes. With the

  17. The Reality of Solar Panels at 50% Cost | Department of Energy

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

    The Reality of Solar Panels at 50% Cost The Reality of Solar Panels at 50% Cost August 3, 2010 - 12:01pm Addthis Dr. Arun Majumdar Dr. Arun Majumdar Jay Precourt Provostial Chair Professor, Stanford University and Former Director, Advanced Research Projects Agency - Energy Last week, residents in the Baltimore-Washington area experienced their 42nd day of 90+ degree temperatures this year. Wouldn't it be nice to capture more of that intense sunlight and convert it into electricity? Modern

  18. The Pyramid Lake Solution--How to Grow the Economy, Jobs and Energy with Wind, Solar, and Geothermal

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

    Desert GeoCulture / Western Biofuels Development 890 Schellbourne Street Reno, Nevada 89511 775-843-2363, 775-848-5274 (phones) 775-852-1683 (Fax) hdg-nv@sbcglobal.net The Pyramid Lake Solution How to Grow the Economy, Jobs and Energy with Wind, Solar and Geothermal High Desert GeoCulture / Western Biofuels Development 890 Schellbourne Street Reno, Nevada 89511 775-843-2363, 775-848-5274 (phones) 775-852-1683 (Fax) hdg-nv@sbcglobal.net Nevada Challenges * Diversify Core Industries * Expand

  19. Adaptive Full-Spectrum Solar Energy Systems Cross-Cutting R&D on adaptive full-spectrum solar energy systems for more efficient and affordable use of solar energy in buildings and hybrid photobioreactors

    SciTech Connect (OSTI)

    Wood, Byard; Kim, Kwang

    2006-03-30

    This RD&D project is a multi-institutional effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae for CO{sub 2} sequestration or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. For the third generation (beta) system, the secondary mirror is an ellipsoidal mirror that directs the visible light into a bundle of 3 mm diameter fibers. The IR spectrum is filtered out to minimize unnecessary heating at the fiber entrance region. This report describes the major achievements from this research that began in August 2001.

  20. CO2 EFFECTS ON MOJAVE DESERT PLANT INTERACTIONS

    SciTech Connect (OSTI)

    L. A. DEFALCO; G. C. FERNANDEZ; S. D. SMITH; R. S. NOWAK

    2004-01-01

    Seasonal and interannual droughts characteristic of deserts have the potential to modify plant interactions as atmospheric CO{sub 2} concentrations continue to rise. At the Nevada Desert FACE (free-air CO{sub 2} enrichment) facility in the northern Mojave Desert, the effects of elevated atmospheric C02 (550 vs. ambient {approx}360 {micro}mol mol{sup -1}) on plant interactions were examined during two years of high and low rainfall. Results suggest that CO{sub 2} effects on the interaction between native species and their understory herbs are dependent on the strength of competition when rainfall is plentiful, but are unimportant during annual drought. Seasonal rainfall for 1999 was 23% the long-term average for the area, and neither elevated CO{sub 2} nor the low production of herbaceous neighbors had an effect on relative growth rate (RGR, d{sup -1}) and reproductive effort (RE, number of flowers g{sup -1}) for Achnatherum hymenoides (early season perennial C{sub 3} grass), Pleuraphis rigida (late season perennial C{sub 4} grass), and Larrea tridentata (evergreen C{sub 3} shrub). In contrast, 1998 received 213% the average rainfall. Consequently, the decrease in RGR and increase in RE for Achnatherum, whose period of growth overlaps directly with that of its neighbors, was exaggerated at elevated CO{sub 2}. However, competitive effects of neighbors on Eriogonum trichopes (a winter annual growing in shrub interspaces), Pleuraphis and Larrea were not affected by elevated CO{sub 2}, and possible explanations are discussed. Contrary to expectations, the invasive annual neighbor Bromus madritensis ssp. rubens had little influence on target plant responses because densities in 1998 and 1999 at this site were well below those found in other studies where it has negatively affected perennial plant growth. The extent that elevated CO{sub 2} reduces the performance of Achnatherum in successive years to cause its loss from the plant community depends more on future pressure

  1. Solar Two

    SciTech Connect (OSTI)

    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 Millenium Ridgecrest Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

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

  3. SES Solar Three Project Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    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...

  4. Renewable Energy Concepts Solar Inc REC Solar | Open Energy Informatio...

    Open Energy Info (EERE)

    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:...

  5. Project title: Stimulation at Desert Peak and Bradys reservoirs: modeling

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

    with the coupled THM code FEHM | Department of Energy Project title: Stimulation at Desert Peak and Bradys reservoirs: modeling with the coupled THM code FEHM Project title: Stimulation at Desert Peak and Bradys reservoirs: modeling with the coupled THM code FEHM Project title: Stimulation at Desert Peak and Bradys reservoirs: modeling with the coupled THM code FEHM presentation at the April 2013 peer review meeting held in Denver, Colorado. kelkar_peer2013.pdf (496.77 KB) More

  6. Biotic Processes Regulating the Carbon Balance of Desert Ecosystems - Final Report

    SciTech Connect (OSTI)

    Nowak, Robert S; Smith, Stanley D; Evans, Dave; Ogle, Kiona; Fenstermaker, Lynn

    2012-12-13

    Our results from the 10-year elevated atmospheric CO{sub 2} concentration study at the Nevada Desert FACE (Free-air CO{sub 2} Enrichment) Facility (NDFF) indicate that the Mojave Desert is a dynamic ecosystem with the capacity to respond quickly to environmental changes. The Mojave Desert ecosystem is accumulating carbon (C), and over the 10-year experiment, C accumulation was significantly greater under elevated [CO{sub 2}] than under ambient, despite great fluctuations in C inputs from year to year and even apparent reversals in which [CO{sub 2}] treatment had greater C accumulations.

  7. Genomic insights into salt adaptation in a desert poplar

    SciTech Connect (OSTI)

    Ma, Tao; Wang, Junyi; Zhou, Gongke; Yue, Zhen; Hu, Quanjun; Chen, Yan; Liu, Bingbing; Qiu, Qiang; Wang, Zhuo; Zhang, Jian; Wang, Kun; Jaing, Dechun; Gou, Caiyun; Yu, Lili; Zhan, Dongliang; Zhou, Ran; Luo, Wenchun; Ma, Hui; Yang, Yongzhi; Pan, Shengkai; Fang, Dongming; Luo, Yadan; Wang, Xia; Wang, Gaini; Wang, Juan; Wang, Qian; Lu, Xu; Chen, Zhe; Liu, Jinchao; Lu, Yao; Yin, Ye; Yang, Huanming; Abbott, Richard; Wu, Yuxia; Wan, Dongshi; Li, Jia; Yin, Tongming; Yin, Tongming; Lascoux, Martin; DiFazio, Steven P; Tuskan, Gerald A; Wang, Jun; Jianquan, Liu

    2013-01-01

    Despite the high economic and ecological importance of forests, our knowledge of the genomic evolution of trees under salt stress remains very limited. Here we report the genome sequence of the desert poplar, Populus euphratica, which exhibits high tolerance to sa lt stress. Its genome is very similar and collinear to that of the closely related mesophytic congener, P trichocarpa. However, we find that several gene families likely to be involved in tolerance to salt stress contain significantly more gene copies within the P euphratica lineage. Furthermore, genes showing evidence of positive selection are significantly enriched in functional categories related to salt stress. Some of these genes, and others within the same categories, are significantly upregulated under salt stress relative to their expression in another salt-sensitive poplar. Our results provide an important background for understanding tree adaptation to salt stress and facilitating the genetic improvement of cultivated poplars for saline soils.

  8. Solar Rights

    Broader source: 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...

  9. solar energy

    National Nuclear Security Administration (NNSA)

    8%2A en Solar power purchase for DOE laboratories http:nnsa.energy.govmediaroompressreleasessolarpower

  10. solar power

    National Nuclear Security Administration (NNSA)

    9%2A en Solar power purchase for DOE laboratories http:nnsa.energy.govmediaroompressreleasessolarpower

  11. Solar interior and atmosphere

    SciTech Connect (OSTI)

    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.

  12. Oxford Solar | Open Energy Information

    Open Energy Info (EERE)

    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...

  13. SBM Solar | Open Energy Information

    Open Energy Info (EERE)

    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...

  14. Akeena Solar | Open Energy Information

    Open Energy Info (EERE)

    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

    Open Energy Info (EERE)

    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

    Open Energy Info (EERE)

    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

    Open Energy Info (EERE)

    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. Solar Kit Lessons

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

    Solar Kit Lessons Middle School Curriculum Created by Northeast Sustainable Energy Association (NESEA) Click on the links below to take you to the Chapter heading: Solar Cell Inquiry Sunshine Timer Parts of a Solar Panel Part 1 Parts of a Solar Panel Part 2 Build a Simple Ammeter Solar-Powered Battery Charger Positioning Solar Panels 1 Positioning Solar Panels 2 Properties of Solar Radiation: Reflection, Transmission, and Absorption Properties of Solar Radiation: Direct and Diffuse Light Power

  19. NREL: Solar STAT Blog -

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

  20. Solar Resource Assessment

    Broader source: Energy.gov [DOE]

    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...

  1. SPECIAL SEMINAR - The NOTTE experiment, or how to become a Total Solar Eclipse chaser

    ScienceCinema (OSTI)

    None

    2011-10-06

    The NOTTE experiment (Neutrino Oscillations with Telescope during Total Eclipse) aims at searching for visible photons emitted through a possible radiative decay of solar neutrinos. The experiment and the expeditions organized by a group of physicists and astrophysicists from INFN and INAF Bologna hunting for Total Solar Eclipses from 1998 to 2006 wil be described. The results of observations performed during total solar eclipse expeditions in 2001 (Zambia) and 2006 (Sahara desert, Libya) are presented and a beautiful photo gallery will be shown. Other peculiar observations that can be made during a solar eclipse are also illustrated. The seminar will be followed by a brief presentation of future camps for solar eclipse chasers and scientists organized in 2008 in Russia, Kazakhstan, China and Mongolia, in 2009 in Shanghai and on the Easter Island in 2010.

  2. SPECIAL SEMINAR - The NOTTE experiment, or how to become a Total Solar Eclipse chaser

    SciTech Connect (OSTI)

    2011-02-08

    The NOTTE experiment (Neutrino Oscillations with Telescope during Total Eclipse) aims at searching for visible photons emitted through a possible radiative decay of solar neutrinos. The experiment and the expeditions organized by a group of physicists and astrophysicists from INFN and INAF Bologna hunting for Total Solar Eclipses from 1998 to 2006 wil be described. The results of observations performed during total solar eclipse expeditions in 2001 (Zambia) and 2006 (Sahara desert, Libya) are presented and a beautiful photo gallery will be shown. Other peculiar observations that can be made during a solar eclipse are also illustrated. The seminar will be followed by a brief presentation of future camps for solar eclipse chasers and scientists organized in 2008 in Russia, Kazakhstan, China and Mongolia, in 2009 in Shanghai and on the Easter Island in 2010.

  3. VP of Transmission System Asset Management for Desert Southwest Region (Maintenance Manager)

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Maintenance (G5000) 615 S. 43rd Avenue Phoenix, AZ 85009...

  4. Desert Peak to Humboldt House and Winnemucca, in: Lane, M.A....

    Open Energy Info (EERE)

    to Humboldt House and Winnemucca, in: Lane, M.A., (ed) Nevada geothermal areas: Desert Peak, Humboldt House, Beoware: Guidebook for field trip Jump to: navigation, search OpenEI...

  5. SunLine Tests HHICE Bus in Desert Climate | Department of Energy

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

    Tests HHICE Bus in Desert Climate SunLine Tests HHICE Bus in Desert Climate Fuel Cell Bus Demonstration Projects (Fact Sheet). 40107.pdf (395.03 KB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report -- Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices

  6. David Blackwell's Forty Years in the Idaho Desert, The Foundation for

    Office of Scientific and Technical Information (OSTI)

    21st Century Geothermal Research (Journal Article) | SciTech Connect Journal Article: David Blackwell's Forty Years in the Idaho Desert, The Foundation for 21st Century Geothermal Research Citation Details In-Document Search Title: David Blackwell's Forty Years in the Idaho Desert, The Foundation for 21st Century Geothermal Research Dr. David Blackwell has had a profound influence on geo-thermal exploration and R&D in Idaho. Forty years have elapsed since the first Southern Methodist

  7. NREL, CSEM Jointly Set New Efficiency Record with Dual-Junction Solar Cell (Fact Sheet), Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

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

    Scientists set a new world record for converting non-concentrated sunlight into electricity using a dual-junction III-V/Si solar cell. A joint effort between the National Renewable Energy Laboratory (NREL) and the Swiss Center for Electronics and Microtechnology (CSEM) has resulted in a novel tandem solar cell that operates at 29.8% conversion efficiency under 1-sun conditions. The new solar cell technology combines NREL's 1.8-eV gallium indium phosphide (GaInP) technology as a top cell and

  8. Solar resources

    SciTech Connect (OSTI)

    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.

  9. Solar Equipment Certification

    Broader source: 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...

  10. Renewable Energy: Solar Fuels GRC and GRS

    SciTech Connect (OSTI)

    Nathan Lewis Nancy Ryan Gray

    2010-02-26

    from a carbon-neutral source. Sunlight is by far the most abundant global carbon-neutral energy resource. More solar energy strikes the surface of the earth in one hour than is obtained from all of the fossil fuels consumed globally in a year. Sunlight may be used to power the planet. However, it is intermittent, and therefore it must be converted to electricity or stored chemical fuel to be used on a large scale. The 'grand challenge' of using the sun as a future energy source faces daunting challenges - large expanses of fundamental science and technology await discovery. A viable solar energy conversion scheme must result in a 10-50 fold decrease in the cost-to-efficiency ratio for the production of stored fuels, and must be stable and robust for a 20-30 year period. To reduce the cost of installed solar energy conversion systems to $0.20/peak watt of solar radiation, a cost level that would make them economically attractive in today's energy market, will require revolutionary technologies. This GRC seeks to present a forum for the underlying science needed to permit future generations to use the sun as a renewable and sustainable primary energy source. Speakers will discuss recent advances in homoogeneous and heterogeneous catalysis of multi-electron transfer processes of importance to solar fuel production, such as water oxidation and reduction, and carbon dioxide reduction. Speakers will also discuss advances in scaleably manufacturable systems for the capture and conversion of sunlight into electrical charges that can be readily coupled into, and utilized for, fuel production in an integrated system.

  11. Development and fabrication of advanced cover glass for a GaAs solar cell

    SciTech Connect (OSTI)

    Borden, P.G.; Kaminar, N.R.; Grounner, M.

    1984-01-01

    This report summarizes work on improving solar cell conversion efficiencies by modifying the cell cover glass. Two approaches were investigated during the course of this work: grooved cover glasses to reduce the effect of top contact obscuration and secondary concentrators to improve concentrator solar cell performances in tracking modules. The grooved cover glass work used an array of metallized V shaped grooves in a thin cover glass (plastic) window to deflect incident light rays away from solar cell front surface regions covered by the solar cell electrical contact metallization onto unobstructed, optically active regions of the solar cell. Secondary concentrators are being considered for use on concentrator solar cells to improve overall system conversion efficiency and reduce receiver module cost. Secondary concentrators designed and fabricated during this project consist of small glass cones to attach directly to the top of the receiver solar cell. When appropriately designed, these secondary concentrator glass cones increase sunlight concentration on the solar cell, improve solar flux uniformity on the cell, improve system tolerance to tracking error, and allow for concentration ratios greater than can be ordinarily achieved with acrylic Fresnel lenses.

  12. Solar Neutrinos

    DOE R&D Accomplishments [OSTI]

    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.

  13. Creating solar media nets solar tools, publicity

    SciTech Connect (OSTI)

    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.

  14. Solar ADEPT: Efficient Solar Energy Systems

    SciTech Connect (OSTI)

    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.

  15. Basic Research Needs for Solar Energy Utilization. Report of the Basic Energy Sciences Workshop on Solar Energy Utilization, April 18-21, 2005

    SciTech Connect (OSTI)

    Lewis, N. S.; Crabtree, G.; Nozik, A. J.; Wasielewski, M. R.; Alivisatos, P.; Kung, H.; Tsao, J.; Chandler, E.; Walukiewicz, W.; Spitler, M.; Ellingson, R.; Overend, R.; Mazer, J.; Gress, M.; Horwitz, J.; Ashton, C.; Herndon, B.; Shapard, L.; Nault, R. M.

    2005-04-21

    World demand for energy is projected to more than double by 2050 and to more than triple by the end of the century. Incremental improvements in existing energy networks will not be adequate to supply this demand in a sustainable way. Finding sufficient supplies of clean energy for the future is one of society?s most daunting challenges. Sunlight provides by far the largest of all carbon-neutral energy sources. More energy from sunlight strikes the Earth in one hour (4.3 ? 1020 J) than all the energy consumed on the planet in a year (4.1 ? 1020 J). We currently exploit this solar resource through solar electricity ? a $7.5 billion industry growing at a rate of 35?40% per annum ? and solar-derived fuel from biomass, which provides the primary energy source for over a billion people. Yet, in 2001, solar electricity provided less than 0.1% of the world's electricity, and solar fuel from modern (sustainable) biomass provided less than 1.5% of the world's energy. The huge gap between our present use of solar energy and its enormous undeveloped potential defines a grand challenge in energy research. Sunlight is a compelling solution to our need for clean, abundant sources of energy in the future. It is readily available, secure from geopolitical tension, and poses no threat to our environment through pollution or to our climate through greenhouse gases. This report of the Basic Energy Sciences Workshop on Solar Energy Utilization identifies the key scientific challenges and research directions that will enable efficient and economic use of the solar resource to provide a significant fraction of global primary energy by the mid 21st century. The report reflects the collective output of the workshop attendees, which included 200 scientists representing academia, national laboratories, and industry in the United States and abroad, and the U.S. Department of Energy?s Office of Basic Energy Sciences and Office of Energy Efficiency and Renewable Energy.

  16. Concentrating Solar Power

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

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

  17. VISUAL-SOLAR

    Energy Science and Technology Software Center (OSTI)

    003661IBMPC00 Visual-SOLAR: Modeling and Visualization of Solar Radiation Potential on Individual Building Rooftops

  18. Solar Easements & Local Option Solar Rights Laws

    Broader source: 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...

  19. Solar Energy Technologies Program: Concentrating Solar Power

    SciTech Connect (OSTI)

    2009-10-26

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

  20. Concentrating Solar Power Projects | Concentrating Solar Power...

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

    SolarPACES, an international program of the International Energy Agency, furthers collaborative development, testing, and marketing of concentrating solar power plants. Activities ...

  1. 10-MWe solar thermal central receiver pilot plant

    SciTech Connect (OSTI)

    Bartel, J.J.; Skvanna, P.E.

    1984-02-01

    The Solar One Project is the world's largest solar electric generating station. This pilot-scale research and development experiment is a cooperative effort of government and private industry to demonstrate technical feasibility, economic potential, and environmental acceptability of the solar thermal central receiver concept. The project, which is formally known as the 10-MW Solar Thermal Central Receiver Pilot Plant, has been constructed in the Mojave Desert on 130 acres of Southern California Edison Company's Cool Water Generating Station near Barstow, California, and will supply 10 MW of electrical power to the Edison grid. Solar One is a joint project of the Department of Energy (DOE), Southern California Edison (SCE), the Los Angeles Department of Water and Power (LADWP), and the California Energy Commission. The solar portion of the facility was designed and constructed under the direction of the DOE, and the turbine-generator facilities, including the control building, were designed and constructed by SCE. This paper presents an overview of the project, discusses the costs and schedule, highlights the planned test program including operation and maintenance, and briefly discusses the experiences through October 1982.

  2. Converting solar-photovoltaic power into exportable products

    SciTech Connect (OSTI)

    Oman, H.

    1997-12-31

    Nations, states, and even communities must generate exportable products that earn money for buying needed imports. Exports have ranged from tourist services to hardwood logs. Fertile land, with irrigation water and fertilizer, grows exportable food. On the other hand a hot dry desert with no mineral resources presents a challenge to its occupants. Solar power could be generated and exported, but that requires construction of expensive transmission lines which are in service only when the sun shines. Among new options is a solar-powered plant that recovers zinc from the zinc oxide produced during discharge of zinc-air electric-vehicle batteries. A hectare-size solar-power plant with 30-percent efficient solar cells can in eight hours recover enough zinc to power 36,000 /km (22,000 miles) of travel in lightweight 4-passenger electric vehicles. A by-product could be renewable fuel for use by local residents in electric bicycles. One oriented solar panel, 10 meters by 10 meters in size, with 30-percent efficient solar cells, could in one day deliver enough energy for traveling 14,700 km (9176 miles) on bicycles. This by far exceeds the travel distance that could be obtained in one day by riding on an animal that is pastured on a s0-by-10 meter area.

  3. AV Solar Ranch I Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    AV Solar Ranch I Solar Power Plant Jump to: navigation, search Name AV Solar Ranch I Solar Power Plant Facility AV Solar Ranch I Sector Solar Facility Type Photovoltaic Developer...

  4. Orlando, Florida: Solar in Action (Brochure), Solar America Cities...

    Office of Environmental Management (EM)

    Orlando, Florida: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Orlando, Florida: Solar in Action (Brochure), Solar America Cities,...

  5. Denver, Colorado: Solar in Action (Brochure), Solar America Cities...

    Office of Environmental Management (EM)

    Denver, Colorado: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Denver, Colorado: Solar in Action (Brochure), Solar America Cities,...

  6. Kings River Conservation District (KRCD) Solar Farm Solar Power...

    Open Energy Info (EERE)

    River Conservation District (KRCD) Solar Farm Solar Power Plant Jump to: navigation, search Name Kings River Conservation District (KRCD) Solar Farm Solar Power Plant Facility...

  7. Space Coast Next Generation Solar Energy Center Solar Power Plant...

    Open Energy Info (EERE)

    Coast Next Generation Solar Energy Center Solar Power Plant Jump to: navigation, search Name Space Coast Next Generation Solar Energy Center Solar Power Plant Facility Space Coast...

  8. Martin Next Generation Solar Energy Center Solar Power Plant...

    Open Energy Info (EERE)

    Next Generation Solar Energy Center Solar Power Plant Jump to: navigation, search Name Martin Next Generation Solar Energy Center Solar Power Plant Facility Martin Next Generation...

  9. Portland, Oregon: Solar in Action (Brochure), Solar America Cities...

    Office of Environmental Management (EM)

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

  10. Solar Position Algorithm for Solar Radiation Applications (Revised...

    Office of Scientific and Technical Information (OSTI)

    Solar Position Algorithm for Solar Radiation Applications (Revised) Citation Details In-Document Search Title: Solar Position Algorithm for Solar Radiation Applications (Revised) ...

  11. EE Solar Energy Efficiency Solar | Open Energy Information

    Open Energy Info (EERE)

    EE Solar Energy Efficiency Solar Jump to: navigation, search Name: EE Solar (Energy Efficiency Solar) Place: Ponoma, California Zip: 91768 Product: PV systems installer based in...

  12. Willard Kelsey Solar Group WK Solar | Open Energy Information

    Open Energy Info (EERE)

    Willard Kelsey Solar Group WK Solar Jump to: navigation, search Name: Willard & Kelsey Solar Group (WK Solar) Place: Perrysburg, Ohio Zip: 43551 Product: Manufacturer of CdTe...

  13. Innotech Solar AS formerly known as Solar Cell Repower | Open...

    Open Energy Info (EERE)

    Innotech Solar AS formerly known as Solar Cell Repower Jump to: navigation, search Name: Innotech Solar AS (formerly known as Solar Cell Repower) Place: Narvik, Norway Zip: 8512...

  14. Wuxi Jiacheng Solar Energy Technology Co JC Solar | Open Energy...

    Open Energy Info (EERE)

    JC Solar Jump to: navigation, search Name: Wuxi Jiacheng Solar Energy Technology Co (JC Solar) Place: Yixing, Jiangsu Province, China Zip: 214200 Sector: Solar Product: A Chinese...

  15. Innovative Systems Engineering Solar LLC ISE Solar LLC | Open...

    Open Energy Info (EERE)

    Systems Engineering Solar LLC ISE Solar LLC Jump to: navigation, search Name: Innovative Systems Engineering Solar LLC (ISE Solar LLC) Place: Warminster, Pennsylvania Zip:...

  16. First Solar Electric LLC formerly DT Solar | Open Energy Information

    Open Energy Info (EERE)

    Electric LLC formerly DT Solar Jump to: navigation, search Name: First Solar Electric LLC (formerly DT Solar) Place: Branchburg, New Jersey Zip: 8876 Sector: Solar Product: PV...

  17. Aide Solar Jiangsu Aide Solar Energy Technology Co Ltd | Open...

    Open Energy Info (EERE)

    Aide Solar Jiangsu Aide Solar Energy Technology Co Ltd Jump to: navigation, search Name: Aide Solar (Jiangsu Aide Solar Energy Technology Co Ltd) Place: Xuzhou, Jiangsu Province,...

  18. AET Solar formerly solar division of GGAM Electrical Services...

    Open Energy Info (EERE)

    Solar formerly solar division of GGAM Electrical Services Jump to: navigation, search Name: AET Solar (formerly solar division of GGAM Electrical Services) Place: Limassol, Cyprus...

  19. Creative Energy Solar Investments SA formerly Hellenic Solar...

    Open Energy Info (EERE)

    Solar Investments SA formerly Hellenic Solar Jump to: navigation, search Name: Creative Energy Solar Investments SA (formerly Hellenic Solar) Place: 18538 Piraeus, Greece Product:...

  20. China Glass Solar aka CG Solar formerly Weihai Bluestar Terra...

    Open Energy Info (EERE)

    Glass Solar aka CG Solar formerly Weihai Bluestar Terra Photovoltaic Co Ltd Jump to: navigation, search Name: China Glass Solar (aka CG Solar, formerly Weihai Bluestar Terra...

  1. Siemens Solar formerly ARCO Solar Corporation | Open Energy Informatio...

    Open Energy Info (EERE)

    Solar formerly ARCO Solar Corporation Jump to: navigation, search Name: Siemens Solar (formerly ARCO Solar Corporation) Place: Arizona Product: Built a 6MW CPV project in 1984,...

  2. Siemens Concentrated Solar Power Ltd previously Solel Solar Systems...

    Open Energy Info (EERE)

    Siemens Concentrated Solar Power Ltd previously Solel Solar Systems Jump to: navigation, search Name: Siemens Concentrated Solar Power Ltd (previously Solel Solar Systems) Place:...

  3. Guodian Jintech Solar Energy formerly Yixing Jintech Solar Energy...

    Open Energy Info (EERE)

    Jintech Solar Energy formerly Yixing Jintech Solar Energy Co Ltd Jump to: navigation, search Name: Guodian Jintech Solar Energy (formerly Yixing Jintech Solar Energy Co Ltd) Place:...

  4. Shanghai Comtec Solar Technology Ltd aka Comtec Solar System...

    Open Energy Info (EERE)

    Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd Jump to: navigation, search Name: Shanghai Comtec Solar Technology Ltd (aka Comtec Solar System Group Ltd) Place:...

  5. Ecosystem Solar Electric Corp aka Solar MW Energy Inc | Open...

    Open Energy Info (EERE)

    Solar Electric Corp aka Solar MW Energy Inc Jump to: navigation, search Name: Ecosystem Solar Electric Corp, aka Solar MW Energy Inc Place: Ontario, California Zip: 91761 Product:...

  6. ET Solar Group Formerly CNS Solar Industry | Open Energy Information

    Open Energy Info (EERE)

    Solar Group Formerly CNS Solar Industry Jump to: navigation, search Name: ET Solar Group (Formerly CNS Solar Industry) Place: Nanjing, Jiangsu Province, China Zip: 210009 Sector:...

  7. Entech Solar Inc formerly WorldWater Solar Technologies | Open...

    Open Energy Info (EERE)

    Solar Inc formerly WorldWater Solar Technologies Jump to: navigation, search Name: Entech Solar Inc. (formerly WorldWater & Solar Technologies) Place: Fort Worth, Texas Zip: 76177...

  8. Milwaukee, Wisconsin: Solar in Action (Brochure), Solar America...

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

    Milwaukee, Wisconsin: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Milwaukee, Wisconsin: Solar in Action (Brochure), Solar America ...

  9. Houston, Texas: Solar in Action (Brochure), Solar America Cities...

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

    Houston, Texas: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Houston, Texas: Solar in Action (Brochure), Solar America Cities, ...

  10. edition Not Available 14 SOLAR ENERGY; SOLAR ENERGY; EDUCATIONAL...

    Office of Scientific and Technical Information (OSTI)

    Home economics: student activities. Field test edition Not Available 14 SOLAR ENERGY; SOLAR ENERGY; EDUCATIONAL TOOLS; CURRICULUM GUIDES; GLAZING; HOUSES; SOLAR COOKERS; SOLAR...

  11. Solar Utility Networks: Replicable Innovations in Solar Energy...

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

    Solar Utility Networks: Replicable Innovations in Solar Energy (SUNRISE) Funding Opportunity Solar Utility Networks: Replicable Innovations in Solar Energy (SUNRISE) Funding ...

  12. PROJECT PROFILE: The Solar Foundation - Solar Training Network...

    Energy Savers [EERE]

    Training Network PROJECT PROFILE: The Solar Foundation - Solar Training Network Project Name: Solar Training Network Funding Opportunity: Solar Training and Education for ...

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

    Energy Savers [EERE]

    Seattle, Washington: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Seattle, Washington: Solar in Action (Brochure), Solar America ...

  14. EIS-0449: Solar Millennium Blythe Solar Power Project in Riverside...

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

    9: Solar Millennium Blythe Solar Power Project in Riverside County, CA EIS-0449: Solar Millennium Blythe Solar Power Project in Riverside County, CA December 10, 2010 EIS-0449: ...

  15. Early solar mass loss, opacity uncertainties, and the solar abundance...

    Office of Scientific and Technical Information (OSTI)

    Early solar mass loss, opacity uncertainties, and the solar abundance problem Citation Details In-Document Search Title: Early solar mass loss, opacity uncertainties, and the solar ...

  16. EA-1798: Abengoa Solar's Mojave Solar Project near Barstow, CA...

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

    8: Abengoa Solar's Mojave Solar Project near Barstow, CA EA-1798: Abengoa Solar's Mojave Solar Project near Barstow, CA July 1, 2011 EA-1798: Final Environmental Assessment Loan ...

  17. San Antonio, Texas: Solar in Action (Brochure), Solar America...

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

    Antonio, Texas: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) San Antonio, Texas: Solar in Action (Brochure), Solar America Cities, ...

  18. Solar Impulse's Solar-Powered Plane

    ScienceCinema (OSTI)

    Moniz, Ernest; Piccard, Bertrand; Reicher, Dan

    2014-01-07

    Solar Impulse lands in Washington, DC at Washington Dulles International Airport as part of its journey across the United States. Secretary Ernest Moniz speaks about how advancements like those at the Department of Energy are leading the way for innovations like the solar-powered plane. Footage of the solar-powered plane courtesy of Solar Impulse.

  19. Solar Impulse's Solar-Powered Plane

    SciTech Connect (OSTI)

    Moniz, Ernest; Piccard, Bertrand; Reicher, Dan

    2013-07-08

    Solar Impulse lands in Washington, DC at Washington Dulles International Airport as part of its journey across the United States. Secretary Ernest Moniz speaks about how advancements like those at the Department of Energy are leading the way for innovations like the solar-powered plane. Footage of the solar-powered plane courtesy of Solar Impulse.

  20. Concentrating Solar Power Projects | Department of Energy

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

    Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects Concentrating Solar Power Projects

  1. Solar engineering 1991

    SciTech Connect (OSTI)

    Mancini, T.R. ); Watanabe, K. ); Klett, D.E. )

    1991-01-01

    This book contains paper presented at the second ASME-JSES-JSME international solar energy conference. It is organized under the following headings: Solar ponds, Energy fundamentals in solar systems, General solar energy, Solar powered cars, Distributed receiver components and systems, Central receiver components and systems, Chemical processes and waste destruction, High flux and innovative applications, Solar thermal space propulsion, Solar dynamic power systems, Analysis methods for monitored building use. Photovoltaics, Testing and measurement.

  2. Solar collector

    SciTech Connect (OSTI)

    Wilhelm, W.G.

    1982-05-04

    The field of this invention is solar collectors, and more particularly, the invention pertains to a flat plate collector that employs high performance thin films. The solar collector of this invention overcomes several problems in this field, such as excessive hardware, cost and reliability, and other prior art drawbacks outlined in the specification. In the preferred form, the apparatus features a substantially rigid planar frame. A thin film window is bonded to one planar side of the frame. An absorber of laminate construction is comprised of two thin film layers that are sealed perimetrically. The layers define a fluid-tight planar envelope of large surface area to volume through which a heat transfer fluid flows. Absorber is bonded to the other planar side of the frame. The thin film construction of the absorber assures substantially full envelope wetting and thus good efficiency. The window and absorber films stress the frame adding to the overall strength of the collector.

  3. Shell Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Name: Shell Solar Place: The Hague, Netherlands Zip: 2501 AN Sector: Solar Product: Shell Solar is developing non-crystalline PV technology,...

  4. Apex Solar | Open Energy Information

    Open Energy Info (EERE)

    Name: Apex Solar Place: Sofia, Bulgaria Zip: 1616 Sector: Solar Product: Bulgarian PV and solar thermal project developer and installer. References: Apex Solar1 This article is a...

  5. Atlantic Solar | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Logo: Atlantic Solar Name: Atlantic Solar Place: Cape Town, South Africa Sector: Solar Product: Solar Thermal Technology Year Founded: 1985 Phone Number:...

  6. Declination Solar | Open Energy Information

    Open Energy Info (EERE)

    San Francisco, California Sector: Solar Product: San Francisco solar installation firm acquired by SolarCity in September 2006. References: Declination Solar1 This article...

  7. Solar Energy | Department of Energy

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

    Energy Resource Library Solar Energy Solar Energy Below are resources for Tribes on solar energy technologies. A Guide to Community Solar: Utility, Private, and Nonprofit ...

  8. Corona Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Name: Corona Solar Place: Tholey-Theley, Germany Zip: D 66636 Sector: Solar Product: Engaged in solar passive large-size collectors. References:...

  9. AS Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Name: AS Solar Address: Am Tnniesberg 4A Place: Hannover, Germany Sector: Solar Product: PV, solar thermal Phone Number: +49 511 475578 - 0...

  10. Abengoa Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Logo: Abengoa Solar Name: Abengoa Solar Address: 11500 W 13th Ave Place: Lakewood, Colorado Zip: 80215 Region: Rockies Area Sector: Solar Product:...

  11. First Solar | Open Energy Information

    Open Energy Info (EERE)

    First Solar Name: First Solar Address: 350 West Washington Street, Suite 600 Place: Tempe, Arizona Zip: 85281 Sector: Solar Product: Solar energy systems Year Founded: 1999 Phone...

  12. Solar Systems | Open Energy Information

    Open Energy Info (EERE)

    Logo: Solar Systems Name: Solar Systems Address: 45 Grosvenor Street Place: Abbotsford, Australia Sector: Solar Product: Solar concentrators Phone Number: +61 3 9413 8000 Website:...

  13. Ascent Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Logo: Ascent Solar Name: Ascent Solar Address: 12300 Grant Street Place: Thornton, Colorado Zip: 80241 Region: Rockies Area Sector: Solar Product:...

  14. Borrego Solar | Open Energy Information

    Open Energy Info (EERE)

    Borrego Solar Jump to: navigation, search Logo: Borrego Solar Name: Borrego Solar Address: 2560 9th Street Place: Berkeley, California Zip: 94710 Region: Bay Area Sector: Solar...

  15. DPW Solar | Open Energy Information

    Open Energy Info (EERE)

    DPW Solar Jump to: navigation, search Logo: DPW Solar Name: DPW Solar Address: 4000 B Vassar Dr. NE Place: Albuquerque, New Mexico Zip: 87107 Sector: Solar Product: Renewable...

  16. Inovateus Solar | Open Energy Information

    Open Energy Info (EERE)

    Inovateus Solar Jump to: navigation, search Logo: Inovateus Solar Name: Inovateus Solar Address: 19890 State Line Rd. Place: South Bend, Indiana Zip: 46637 Sector: Solar Product:...

  17. Standard Solar | Open Energy Information

    Open Energy Info (EERE)

    Standard Solar Name: Standard Solar Address: 202 Perry Parkway Place: Gaithersburg, Maryland Zip: 20877 Region: Northeast - NY NJ CT PA Area Sector: Solar Product: Solar...

  18. Wasatch Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Name: Wasatch Solar Address: 4417 S 2950 E Place: Salt Lake City, Utah Zip: 84124 Sector: Solar Product: Solar Year Founded: 2009 Phone...

  19. Sylcom Solar | Open Energy Information

    Open Energy Info (EERE)

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

  20. Genesis Solar | Open Energy Information

    Open Energy Info (EERE)

    Genesis Solar Facility Genesis Solar Sector Solar Facility Type Concentrating solar power Facility Status Under Construction Owner NextEra Developer NextEra Location Blythe,...

  1. Solar Easements | Department of Energy

    Office of Environmental Management (EM)

    Process Heat Solar Photovoltaics Daylighting Solar Pool Heating Program Info Sector Name State State Kentucky Program Type SolarWind Access Policy Summary In Kentucky, solar ...

  2. Preussen Solar | Open Energy Information

    Open Energy Info (EERE)

    Preussen Solar Jump to: navigation, search Name: Preussen Solar Place: Berlin, Germany Zip: 10711 Sector: Solar Product: Involved in solar projects. Coordinates: 52.516074,...

  3. Scaled Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Product: Scaled Solar manufacturers and markets utility-grade, concentrated photovoltaic solar energy systems to commercial customers References: Scaled Solar1 This...

  4. Solar PST | Open Energy Information

    Open Energy Info (EERE)

    search Name: Solar PST Place: Bergondo, Spain Zip: 15 165 Sector: Solar Product: Spanish company producing thermodynamic solar panels. References: Solar PST1 This article...

  5. Immodo Solar | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Immodo Solar Place: Spain Sector: Solar Product: Spanish company which installs and maintains solar panels. References: Immodo Solar1 This...

  6. Solarize Guidebook | Department of Energy

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

    Solarize Guidebook Solarize Guidebook This guidebook is intended to be a roadmap for project planners and solar advocates who want to create their own successful Solarize ...

  7. Solar Energy

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

    Energy - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy

  8. Solar cogeneration

    SciTech Connect (OSTI)

    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)

  9. Solar Newsletter

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

    2 - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  10. Solar Contractor Licensing | Department of Energy

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

    < Back Eligibility InstallersContractors Savings Category Solar - Passive Solar Water Heat Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Photovoltaics...

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

    SciTech Connect (OSTI)

    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.

  12. Solar energy collector

    DOE Patents [OSTI]

    Brin, Raymond L.; Pace, Thomas L.

    1978-01-01

    The invention relates to a solar energy collector comprising solar energy absorbing material within chamber having a transparent wall, solar energy being transmitted through the transparent wall, and efficiently absorbed by the absorbing material, for transfer to a heat transfer fluid. The solar energy absorbing material, of generally foraminous nature, absorbs and transmits the solar energy with improved efficiency.

  13. Erosion Resistance Index (ERI) to Assess Surface Stability in Desert Environments

    SciTech Connect (OSTI)

    Hamada, Yuki; Grippo, Mark A.

    2015-11-01

    A new spectral index—erosion resistance index (ERI)—was developed to assess erosion risks in desert landscapes. The index was developed by applying trigonometry to the combination of the green/red band-ratio and the red/near infrared band-ratio from very high spatial resolution imagery. The resultant ERI maps showed spatially cohesive distributions of high and low index values across the study areas. High index values were observed over areas that were resistant to erosion (such as desert pavement and dense vegetation), while low index values overlapped with areas likely dominated by loose sandy soils, such as stream beds and access roads. Although further investigation is warranted, this new index, ERI, shows promise for the assessment of erosion risks in desert regions.

  14. Countering third world weapons of mass destruction: Desert storm as a prototype. Final report

    SciTech Connect (OSTI)

    Nelson, S.M.

    1993-02-19

    The proliferation of Weapons of Mass Destruction (WMDs)--nuclear, biological, and chemical--is occurring throughout the Third World. Desert Storm offers an excellent case study for assessing the various measures and operations which can be employed to protect U.S.. forces against an adversary possessing a WMD capability. The elements of Desert Storm's successful strategy can be categorized in three broad approaches--deterrence, denial, and defense. All three approaches were necessary and syngergistic. In the future, the ability to quickly deny or destroy an adversary's WMD capability will be increasingly important, due to the unacceptability of exposing forces to any type of NBC agent, the likelihood for increased uncertainty surrounding deterrent threats, and the diplomatic, political, and psychological dilemmas posed by an adversary's first use....Weapons of mass destruction, Desert Storm.

  15. Concentrating Solar Power Projects - Nevada Solar One | Concentrating Solar

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

    Power | NREL Nevada Solar One This page provides information on Nevada Solar One, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. Acciona Energy's Nevada Solar One is the third largest CSP plant in the world and the first plant built in the United States since 1999. Located in Boulder City, Nevada, about 40 miles southeast of Las Vegas, this parabolic trough system has been operating since June 2007. The US$260

  16. EFFECTS OF ELEVATED CO2 ON ROOT FUNCTION AND SOIL RESPIRATION IN A MOJAVE DESERT ECOSYSTEM

    SciTech Connect (OSTI)

    Nowak, Robert S.

    2007-12-19

    Increases in atmospheric CO{sub 2} concentration during the last 250 years are unequivocal, and CO{sub 2} will continue to increase at least for the next several decades (Houghton et al. 2001, Keeling & Whorf 2002). Arid ecosystems are some of the most important biomes globally on a land surface area basis, are increasing in area at an alarming pace (Dregne 1991), and have a strong coupling with regional climate (Asner & Heidebrecht 2005). These water-limited ecosystems also are predicted to be the most sensitive to elevated CO{sub 2}, in part because they are stressful environments where plant responses to elevated CO{sub 2} may be amplified (Strain & Bazzaz 1983). Indeed, all C{sub 3} species examined at the Nevada Desert FACE Facility (NDFF) have shown increased A{sub net} under elevated CO{sub 2} (Ellsworth et al. 2004, Naumburg et al. 2003, Nowak et al. 2004). Furthermore, increased shoot growth for individual species under elevated CO{sub 2} was spectacular in a very wet year (Smith et al. 2000), although the response in low to average precipitation years has been smaller (Housman et al. 2006). Increases in perennial cover and biomass at the NDFF are consistent with long term trends in the Mojave Desert and elsewhere in the Southwest, indicating C sequestration in woody biomass (Potter et al. 2006). Elevated CO{sub 2} also increases belowground net primary production (BNPP), with average increases of 70%, 21%, and 11% for forests, bogs, and grasslands, respectively (Nowak et al. 2004). Although detailed studies of elevated CO{sub 2} responses for desert root systems were virtually non-existent prior to our research, we anticipated that C sequestration may occur by desert root systems for several reasons. First, desert ecosystems exhibit increases in net photosynthesis and primary production at elevated CO{sub 2}. If large quantities of root litter enter the ecosystem at a time when most decomposers are inactive, significant quantities of carbon may be stored

  17. Jweers's blog | OpenEI Community

    Open Energy Info (EERE)

    Jweers's blog Home > Blogs Jweers's picture Submitted by Jweers(88) Contributor 10 February, 2015 - 12:22 Desert Sunlight goes online 550 MW Desert Sunlight DOE power plant PV...

  18. Copper Mountain Solar Farm

    Broader source: Energy.gov [DOE]

    This b-roll shows a large-scale solar farm in Nevada that generates renewable solar energy using parabolic troughs, a form of concentrating solar power (CSP) technology, and photovoltaic technology.

  19. Smart Solar Marketing Strategies

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

    ... e Cost. Consumers report high up-front and out-of-pocket costs and long payback periods deter them from installing solar ... While state solar pro- grams do not produce solar panels, ...

  20. Solar Neutrino Problem

    DOE R&D Accomplishments [OSTI]

    Davis, R. Jr.; Evans, J. C.; Cleveland, B. T.

    1978-04-28

    A summary of the results of the Brookhaven solar neutrino experiment is given and discussed in relation to solar model calculations. A review is given of the merits of various new solar neutrino detectors that were proposed.

  1. Solar Easements & Rights Laws

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Solar Recordation Act describes the procedures for filing a solar right through the County Clerk's Office. The property owner seeking the solar right must give advanced notice to the adjacent...

  2. Concentrating Solar Power Projects - Xina Solar One | Concentrating Solar

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

    Power | NREL Xina Solar One Abengoa has been selected by the Department of Energy (DOE) of South Africa to develop Xina Solar One, a 100 MW parabolic trough plant with a five-hour thermal energy storage system using molten salts. This project will form the largest solar complex in Africa together with Abengoa's plant KaXu Solar One that is currently under construction in the country. Xina Solar One was awarded to Abengoa in the third round of renewable energy projects organized by the

  3. ON POSSIBLE VARIATIONS OF BASAL Ca II K CHROMOSPHERIC LINE PROFILES WITH THE SOLAR CYCLE

    SciTech Connect (OSTI)

    Pevtsov, Alexei A.; Uitenbroek, Han; Bertello, Luca E-mail: huitenbroek@nso.edu

    2013-04-10

    We use daily observations of the Ca II K line profiles of the Sun-as-a-star taken with the Integrated Sunlight Spectrometer from 2006 December through 2011 July to deconvolve the contributions from the quiet (basal) chromosphere and with magnetic network/plage areas. The 0.5 A emission index computed from basal profiles shows a significantly reduced modulation (as compared with one derived from the observed profiles) corresponding to the Sun's rotation. For basal contribution of the Ca II K line, the peak in power spectrum corresponding to solar rotation is broad and not well defined. Power spectra for the plage contribution show two narrow well-defined peaks corresponding to solar rotation at two distinct latitudes, in agreement with the latitudinal distribution of activity on the Sun at the end of Cycle 23 and beginning of Cycle 24. We use the lack of a signature of solar rotation in the basal (quiet Sun) component as an indication of a successful removal of the active Sun (plage) component. Even though the contribution from solar activity is removed from the basal line profiles, we find a weak dependency of intensity in the line core (K3) of basal profiles with the phase of the solar cycle. Such dependency could be the result of changes in thermal properties of basal chromosphere with the solar cycle. As an alternative explanation, we also discuss a possibility that the basal component does not change with the phase of the solar cycle.

  4. Compound Solar Technology CompSolar | Open Energy Information

    Open Energy Info (EERE)

    Solar Technology CompSolar Jump to: navigation, search Name: Compound Solar Technology (CompSolar) Place: Jhunan, Taiwan Zip: 350 Sector: Solar Product: Producer of glass-based...

  5. Silicon Valley Solar Inc SV Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Inc SV Solar Jump to: navigation, search Name: Silicon Valley Solar Inc (SV Solar) Place: Santa Clara, California Zip: 95051 Sector: Solar Product: A US-based manufacturer of...

  6. First Solar AVSR Solar Ranch Technical Eligibility Re-Evaluation...

    Office of Environmental Management (EM)

    First Solar AVSR Solar Ranch Technical Eligibility Re-Evaluation Memo First Solar AVSR Solar Ranch Technical Eligibility Re-Evaluation Memo FirstSolarAVSRSolarRanchOneTechnic...

  7. SunShot Solar PV | Department of Energy

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

    Solar PV SunShot Solar PV

  8. Solar in Cold, Cloudy Climates

    Broader source: Energy.gov [DOE]

    Presentation delivered by Chuck Marken during the 2009 Northeastern Solar Cities Conference Solar Survey session.

  9. Tribal Solar Energy Partnerships

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

    SOLAR ENERGY PARTNERSHIPS Chairman Timothy Williams - Fort Mojave Indian Tribe Perry Fontana - First Solar Fort Mojave Indian Reservation Fort Mojave Project Site Mohave Generating ...

  10. Making a Solar Oven

    K-12 Energy Lesson Plans and Activities Web site (EERE)

    Students make solar ovens. Student background information is provided. The expected outcome is that students will learn about solar energy transfer.

  11. Solar PV Incentive Programs

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

    PV Program (greater than 50 kW) * LIPA Solar Pioneer (homeowner) & Solar Entrepreneur (business - up to 50 kW) Research & Development collaborations on BOS cost ...

  12. Your Solar Home

    Broader source: Energy.gov [DOE]

    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.

  13. TVA- Solar Solutions Initiative

    Broader source: Energy.gov [DOE]

    Solar Solutions Initiative (SSI) is a pilot program that offers additional financial incentives for Solar PV systems participating in the Renewable Standard Offer program. Applications for new...

  14. Solar Photovoltaic SPECIFICATION, CHECKLIST...

    Energy Savers [EERE]

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

  15. Solar Power Basics

    Broader source: Energy.gov [DOE]

    This video summarizes the process of generating solar electricity from photovoltaic and concentrating solar power technologies. Research, manufacturing, and usage across the United States is also...

  16. Scattering Solar Thermal Concentrators

    Office of Environmental Management (EM)

    sunshot DOEGO-102012-3669 * September 2012 MOTIVATION All thermal concentrating solar power (CSP) systems use solar tracking, which involves moving large mirror surfaces...

  17. Solar Energy Technologies Office

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 2011, the Energy Department's Solar Energy Technologies Office (SETO) became the SunShot Initiative, a collaborative national effort that aggressively drives innovation to make solar energy...

  18. Solar Thermoelectric Energy Conversion

    Office of Energy Efficiency and Renewable Energy (EERE)

    Efficiencies of different types of solar thermoelectric generators were predicted using theoretical modeling and validated with measurements using constructed prototypes under different solar intensities

  19. Solar Contractor Licensing

    Broader source: Energy.gov [DOE]

    Hawaii offers several specialty licenses for solar contractors through Hawaii’s Department of Commerce and Consumer Affairs. The following specialty licenses are available: Solar Power Systems...

  20. Solar Energy in Alaska

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

    Solar Energy in Alaska Photo by: Cassandra Cerny, GVEA David Lockard, Solar Program Manager Alaska Energy Authority BIA Providers Conference December 2, 2015 Alaska Energy ...

  1. Concentrating Solar Power

    SciTech Connect (OSTI)

    Solar Energy Technologies Program

    2010-09-28

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

  2. Solarity | Open Energy Information

    Open Energy Info (EERE)

    Solarity Jump to: navigation, search Name: Solarity Address: 200 Innovation Blvd Suite 260A Place: State College, Pennsylvania Zip: 16801 Region: Northeast - NY NJ CT PA Area...

  3. Solar Research at BNL

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

    LIPA Issued Solar RFP on April 22, 2008 which sought: * 50 MW or more of capacity, energy, and Renewable Energy Credits (RECs) from solar photovoltaic generating ...

  4. Solar Affordable Housing Program

    Office of Environmental Management (EM)

    Solar Affordable Housing Program Why Solar for Tribes ... from a clean, renewable energy source Green jobs training ... with Other Tribal Communities The Great Plains Montana ...

  5. Rooftop Solar Challenge

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Rooftop Solar Challenge aims to reduce the cost of rooftop solar energy systems through improved permitting, financing, zoning, net metering, and interconnection processes for residential and...

  6. Solar Two Tower System

    Broader source: Energy.gov [DOE]

    In this photograph of a concentrating solar power (CSP) technology, stretched membrane heliostats with silvered polymer reflectors will be used as demonstration units at the Solar Two central...

  7. Solar collector

    DOE Patents [OSTI]

    Wilhelm, William G.

    1982-01-01

    The field of this invention is solar collectors, and more particularly, the invention pertains to a flat plate collector that employs high performance thin films. The solar collector of this invention overcomes several problems in this field, such as excessive hardware, cost and reliability, and other prior art drawbacks outlined in the specification. In the preferred form, the apparatus features a substantially rigid planar frame (14). A thin film window (42) is bonded to one planar side of the frame. An absorber (24) of laminate construction is comprised of two thin film layers (24a, 24b) that are sealed perimetrically. The layers (24a, 24b) define a fluid-tight planar envelope (24c) of large surface area to volume through which a heat transfer fluid flows. Absorber (24) is bonded to the other planar side of the frame. The thin film construction of the absorber assures substantially full envelope wetting and thus good efficiency. The window and absorber films stress the frame adding to the overall strength of the collector.

  8. Solar skylight

    DOE Patents [OSTI]

    Adamson, James C.

    1984-01-01

    A reflective shutter rotates within a skylight housing in such a fashion as to control solar energy thereby providing a combination of heating, lighting, and ventilation. The skylight housing has three faces: a glazed southern face, a glazed northern face, and an open downwardly oriented face to the interior of the structure. Counter-weighted pivot arms support the shutter at either end causing the center of rotation to pass through the center of gravity. The shutter has three basic positions: In the first position, during the winter day, the shutter closes off the northern face, allowing solar energy to enter directly into the supporting structure providing heat gain and daylighting. In the second position, during the winter night, the shutter closes off the open face to the interior, providing insulation between the structure and the skylight housing. In the third position, during the non-heating season, the shutter closes off the southern face blocking unwanted heat gain but allowing diffuse northern light to penetrate for daylighting. In this last position, a means is provided for ventilating by natural convection. The apparatus can be operated either manually or by motor.

  9. Solar Easements & Local Option Solar Rights Laws

    Broader source: Energy.gov [DOE]

    The New York General City, Town, and Village codes also allow local zoning districts to make regulations regarding solar access that provide for "the accommodation of solar energy systems and...

  10. Flix Solar | Open Energy Information

    Open Energy Info (EERE)

    Flix Solar Jump to: navigation, search Name: Flix Solar Place: Spain Sector: Solar Product: Flix solar is developing a 12MW solar park in Flix, Tarragona, Spain. References: Flix...

  11. Solar Systems Pty Ltd | Open Energy Information

    Open Energy Info (EERE)

    technology it has developed for concentrating sunlight by a factor of 500 onto multi-junction PV cells, using parabolic dishes. Went into receivership in September 2009....

  12. Concentrating Solar Power: Efficiently Leveraging Equilibrium...

    Office of Environmental Management (EM)

    the development of thermochemical energy storage (TCES) systems that can validate a cost ... Summary: This project seeks to design a system that concentrates sunlight onto a ...

  13. Berkeley Lab Sheds Light on Improving Solar Cell Efficiency

    SciTech Connect (OSTI)

    Lawrence Berkeley National Laboratory

    2007-07-20

    Typical manufacturing methods produce solar cells with an efficiency of 12-15%; and 14% efficiency is the bare minimum for achieving a profit. In work performed at the Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley, CA, 5 10-486-577 1)--a US Department of Energy national laboratory that conducts unclassified scientific research and is managed by the University of California--scientist Scott McHugo has obtained keen insights into the impaired performance of solar cells manufactured from polycrystalline silicon. The solar cell market is potentially vast, according to Berkeley Lab. Lightweight solar panels are highly beneficial for providing electrical power to remote locations in developing nations, since there is no need to build transmission lines or truck-in generator fuel. Moreover, industrial nations confronted with diminishing resources have active programs aimed at producing improved, less expensive solar cells. 'In a solar cell, there is a junction between p-type silicon and an n-type layer, such as diffused-in phosphorous', explained McHugo, who is now with Berkeley Lab's Accelerator and Fusion Research Division. 'When sunlight is absorbed, it frees electrons, which start migrating in a random-walk fashion toward that junction. If the electrons make it to the junction; they contribute to the cell's output of electric current. Often, however, before they reach the junction, they recombine at specific sites in the crystal' (and, therefore, cannot contribute to current output). McHugo scrutinized a map of a silicon wafer in which sites of high recombination appeared as dark regions. Previously, researchers had shown that such phenomena occurred not primarily at grain boundaries in the polycrystalline material, as might be expected, but more often at dislocations in the crystal. However, the dislocations themselves were not the problem. Using a unique heat treatment technique, McHugo performed electrical measurements to investigate the material

  14. First Tracer Test After Circulation in Desert Peak 27-15

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

    Rose, Peter

    Following the successful stimulation of Desert Peak target EGS well 27-15, a circulation test was initiated by injecting a conservative tracer (1,5-nds) in combination with a reactive tracer (7-amino-1,3-naphthalene disulfonate). The closest production well 74-21 was monitored over the subsequent several months.

  15. First Tracer Test After Circulation in Desert Peak 27-15

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

    Rose, Peter

    2013-11-16

    Following the successful stimulation of Desert Peak target EGS well 27-15, a circulation test was initiated by injecting a conservative tracer (1,5-nds) in combination with a reactive tracer (7-amino-1,3-naphthalene disulfonate). The closest production well 74-21 was monitored over the subsequent several months.

  16. Stimulation at Desert Peak -modeling with the coupled THM code FEHM

    SciTech Connect (OSTI)

    kelkar, sharad

    2013-04-30

    Numerical modeling of the 2011 shear stimulation at the Desert Peak well 27-15. This submission contains the FEHM executable code for a 64-bit PC Windows-7 machine, and the input and output files for the results presented in the included paper from ARMA-213 meeting.

  17. Stimulation at Desert Peak -modeling with the coupled THM code FEHM

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

    kelkar, sharad

    Numerical modeling of the 2011 shear stimulation at the Desert Peak well 27-15. This submission contains the FEHM executable code for a 64-bit PC Windows-7 machine, and the input and output files for the results presented in the included paper from ARMA-213 meeting.

  18. Operation Clean Desert Educates Hundreds of Students on EM Program in Nevada

    Broader source: Energy.gov [DOE]

    LAS VEGAS – Operation Clean Desert — EM’s effort to educate students on the science of environmental cleanup and other missions at the Nevada National Security Site (NNSS) — kicked into gear with the start of the school year.

  19. Sunshot Rooftop Solar Challenge | Department of Energy

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

    Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge

  20. Solar collector

    DOE Patents [OSTI]

    Wilhelm, W.G.

    The invention pertains to a flat plate collector that employs high performance thin films. The solar collector of this invention overcomes several problems in this field, such as excessive hardware, cost and reliability, and other prior art drawbacks outlined in the specification. In the preferred form, the apparatus features a substantially rigid planar frame. A thin film window is bonded to one planar side of the frame. An absorber of laminate construction is comprised of two thin film layers that are sealed perimetrically. The layers define a fluid-tight planar envelope of large surface area to volume through which a heat transfer fluid flows. Absorber is bonded to the other planar side of the frame. The thin film construction of the absorber assures substantially full envelope wetting and thus good efficiency. The window and absorber films stress the frame adding to the overall strength of the collector.

  1. Solar Energy Science Projects

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

    Science Projects Curriculum: Solar Power -(thermodynamics, lightelectromagnetic, radiation, energy transformation, conductionconvection, seasons, trigonometry) Grade Level: ...

  2. Solar Webinar Presentation Slides

    Office of Energy Efficiency and Renewable Energy (EERE)

    Download presentation slides from the DOE Office of Indian Energy Webinar on solar renewable energy.

  3. 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.

  4. Solar Policy Environment: Houston

    Broader source: Energy.gov [DOE]

    The City of Houston is committed to achieving a sustainable solar infrastructure through strategic partnerships that address market barriers for solar energy through the Houston Solar Initiative. The initiative is dedicated to this long-term goal while focusing on near- and mid-term results that go beyond demonstration solar projects.

  5. Solar Policy Environment: Boston

    Office of Energy Efficiency and Renewable Energy (EERE)

    City of Boston’s objective in creating Solar Boston is to maximize solar technology’s role in the City’s sustainable development, educational and emergency preparedness policies. Solar Boston’s objective is the installation of solar technology on all feasible and appropriate locations throughout Boston.

  6. Photovoltaic solar concentrator

    SciTech Connect (OSTI)

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

    2015-09-08

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

  7. Solar collector array

    SciTech Connect (OSTI)

    Hall, John Champlin; Martins, Guy Lawrence

    2015-09-06

    A method and apparatus for efficient manufacture, assembly and production of solar energy. In one aspect, the apparatus may include a number of modular solar receiver assemblies that may be separately manufactured, assembled and individually inserted into a solar collector array housing shaped to receive a plurality of solar receivers. The housing may include optical elements for focusing light onto the individual receivers, and a circuit for electrically connecting the solar receivers.

  8. NREL: Innovation Impact - Solar

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

    Solar Energy Menu Home Home Solar Solar Wind Wind Analysis Analysis Bioenergy Bioenergy Buildings Buildings Transportation Transportation Manufacturing Manufacturing Energy Systems Integration Energy Systems Integration What is a quantum dot? Close Quantum dots are tiny spheres of semiconductor material measuring only about 2-10 billionths of a meter in diameter. Quantum dots are a leading candidate for a third generation of solar-cell technologies. Close Achieving significant gains in solar

  9. Solar Policy Environment: Pittsburgh

    Broader source: Energy.gov [DOE]

    In this project, Pittsburgh plans to build on its reputation as a national leader in green practices. Its Solar America Cities project will develop a distributed approach to adoption of solar energy technologies. Pittsburgh’s partnership includes universities, non-profit organizations, and business, labor and foundation communities. The city plans to transform the solar energy market and stimulate early adoption of solar technology, to show that solar technology works in a northern city.

  10. NREL: Solar Radiation Research - Solar Radiation Research Laboratory...

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

    Solar Radiation Research Laboratory Photographs The Solar Radiation Research Laboratory (SRRL) houses more than 70 instruments to analyze and record solar radiation and surface ...

  11. 20 Years of Solar Measurements: The Solar Radiation Research...

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

    Years of Solar Measurements: The Solar Radiation Research Laboratory (SRRL) at NREL Tom ... * Continuous measurements of key solar radiation resources * Calibrations of instruments ...

  12. Solar Systems and Solutions Soluciones Sistemas Solares 3S |...

    Open Energy Info (EERE)

    Systems and Solutions Soluciones Sistemas Solares 3S Jump to: navigation, search Name: Solar Systems and Solutions Soluciones Sistemas Solares (3S) Place: Navarre, Spain Sector:...

  13. China Solar Clean Energy Solutions Inc formerly Deli Solar USA...

    Open Energy Info (EERE)

    Inc formerly Deli Solar USA Inc Jump to: navigation, search Name: China Solar & Clean Energy Solutions Inc ( formerly Deli Solar (USA) Inc) Place: Connecticut Zip: 6039 Sector:...

  14. EPOD Solar Wales Ltd formerly ICP Solar Technologies Ltd | Open...

    Open Energy Info (EERE)

    Wales Ltd formerly ICP Solar Technologies Ltd Jump to: navigation, search Name: EPOD Solar (Wales) Ltd (formerly ICP Solar Technologies Ltd) Place: Mid Glamorgan, United Kingdom...

  15. United Solar Systems Corp USSC aka Bekaert ECD Solar Systems...

    Open Energy Info (EERE)

    Systems Corp USSC aka Bekaert ECD Solar Systems LLC Jump to: navigation, search Name: United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC) Place: Middletown...

  16. Solar Energy Sources SES Solar Inc formerly Electric Network...

    Open Energy Info (EERE)

    SES Solar Inc formerly Electric Network com Jump to: navigation, search Name: Solar Energy Sources - SES Solar Inc (formerly Electric Network.com) Place: Vancouver, British...

  17. Amargosa Farm Road Solar Energy Project Solar Power Plant | Open...

    Open Energy Info (EERE)

    Sector Solar Facility Type Concentrating Solar Power Developer Solar Millenium, LLC, MAN Ferrostaal Inc Location Nye County, Nevada Coordinates 38.5807111, -116.0413889...

  18. Using the standard solar model to constrain solar composition...

    Office of Scientific and Technical Information (OSTI)

    Using the standard solar model to constrain solar composition and nuclear reaction S factors Citation Details In-Document Search Title: Using the standard solar model to constrain ...

  19. Exploring changes in solar model physics to mitigate the solar...

    Office of Scientific and Technical Information (OSTI)

    Exploring changes in solar model physics to mitigate the solar abundance problem Citation Details In-Document Search Title: Exploring changes in solar model physics to mitigate the ...

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

    Open Energy Info (EERE)

    Topaz Solar Farm Sector Solar Facility Type Photovoltaic Developer OptiSolar Location San Luis Obispo County, California Coordinates 35.3102296, -120.4357631 Show Map...