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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. 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:...

  11. 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 ...

  12. 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 ...

  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. 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

  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 A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt ...

  11. 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...

  12. 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

  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. 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,...

  19. 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. ...

  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. 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 ...

  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. 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...

  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. 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 ...

  15. 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 ...

  16. 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 ...

  17. 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 & ...

  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. 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

  9. 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 ...

  10. 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

  11. 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:...

  12. 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 ...

  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. 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...

  17. 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...

  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. 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...

  11. 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...

  12. 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...

  13. 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...

  14. 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...

  15. 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...

  16. 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 &...

  17. 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)...

  18. 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)...

  19. 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)...

  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. 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....

  6. 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.

  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. 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.

  17. 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.

  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. 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...

  4. 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:...

  5. 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

  6. 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

  7. 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...

  8. 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.

  9. 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.

  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. 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......

  5. 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...

  6. 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...

  7. 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...

  8. 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...

  9. 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...

  10. 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...

  11. 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.

  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. 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

  14. 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.

  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. 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...

  17. 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...

  18. 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...

  19. 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)...

  20. 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 ...

  1. 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

  2. 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.

  3. 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

  4. 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.

  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. 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

  7. 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.

  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. 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

  10. 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

  11. 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.

  12. 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.

  13. 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).

  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. 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:

  16. 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

  17. 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

  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. 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.

  1. 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.

  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. 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...

  7. 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 ...

  8. 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 ...

  9. 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.

  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. 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

  12. 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

  13. 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

  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. 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.

  19. 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

  20. $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

  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. 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

  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. 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

  6. 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).

  7. 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.

  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. 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.

  13. 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.

  14. 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...

  15. 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

  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. 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.

  19. 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...

  20. 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 ...

  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.