National Library of Energy BETA

Sample records for rooftop solar panels

  1. Sunshot Rooftop Solar Challenge | Department of Energy

    Energy Savers [EERE]

    Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge

  2. Concentrating Solar Panels: Bringing the Highest Power and Lowest Cost to the Rooftop

    SciTech Connect (OSTI)

    Michael Deck; Rick Russell

    2010-01-05

    Soliant Energy is a venture-capital-backed startup focused on bringing advanced concentrating solar panels to market. Our fundamental innovation is that we are the first company to develop a racking solar concentrator specifically for commercial rooftop applications, resulting in the lowest LCOE for rooftop electricity generation. Today, the commercial rooftop segment is the largest and fastest-growing market in the solar industry. Our concentrating panels can make a major contribution to the SAI's objectives: reducing the cost of solar electricity and rapidly deploying capacity. Our commercialization focus was re-shaped in 2009, shifting from an emphasis solely on panel efficiency to LCOE. Since the inception of the SAI program, LCOE has become the de facto standard for comparing commercial photovoltaic systems. While estimation and prediction models still differ, the emergence of performance-based incentive (PBI) and feed-in tariff (FIT) systems, as well as power purchase agreement (PPA) financing structures make LCOE the natural metric for photovoltaic systems. Soliant Energy has designed and demonstrated lower-cost, higher-power solar panels that consists of 6 (500X) PV module assemblies utilizing multi-junction cells and an integrated two-axis tracker. In addition, we have designed and demonstrated a prototype 1000X panel assembly with 8. Cost reductions relative to conventional flat panel PV systems were realized by (1) reducing the amount of costly semiconductor material and (2) developing strategies and processes to reduce the manufacturing costs of the entire system. Performance gains against conventional benchmarks were realized with (1) two-axis tracking and (2) higher-efficiency multi-junction PV cells capable of operating at a solar concentration ratio of 1000X (1000 kW/m2). The program objectives are: (1) Develop a tracking/concentrating solar module that has the same geometric form factor as a conventional flat, roof mounted photovoltaic (PV) panel - the Soliant module will produce more power and cost less than conventional panels of the same size; (2) Target LCOE: $0.079/kWh in 2010; (3) Target efficiency - 26% in 2010 (22% for 2008 prototype, 24% for 2009 pilot); and (4) Target performance - equivalent to 650Wp in 2010 (490W for 2008 prototype, 540W for 2009 pilot).

  3. Rooftop Solar PV & Firefighter Safety

    Broader source: Energy.gov [DOE]

    Solar photovoltaic (PV) installations have experienced significant growth in recent years. Due to technological innovations and cost reductions, solar energy is a viable option for an increasing number of residences and businesses across the United States. Rooftop solar is considered safe – to date there has been no documented case of death from the electric shock, chemical burn or conventional fire caused by a solar panel; however, as more buildings install rooftop solar systems, the likelihood increases that fires will occur on buildings with solar, making it critical for firefighters to receive comprehensive solar education and training. This SolarOPs fact sheet gives a brief overview of typical solar PV installations, addresses the major hazards and risks to firefighters, discusses fire safety in Germany (the country with the most installed solar PV per capita), and suggests recommendations and resources to ensure that first responders are prepared to fight fires on homes and buildings with rooftop solar PV.

  4. Solar access of residential rooftops in four California cities...

    Office of Scientific and Technical Information (OSTI)

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes ...

  5. Rooftop Solar Challenge | Department of Energy

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

    Rooftop Solar Challenge Rooftop Solar Challenge The Rooftop Solar Challenge aims to reduce the cost of rooftop solar energy systems through improved permitting, financing, zoning, net metering, and interconnection processes for residential and small commercial photovoltaic (PV) installations. Launched in February 2012, the first round of the Rooftop Solar Challenge supported one-year projects for 22 regional teams. The aggregated efforts of Rooftop Solar Challenge I teams cut permitting time by

  6. Unleashing Rooftop Solar Energy through More Efficient Government |

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

    Department of Energy Unleashing Rooftop Solar Energy through More Efficient Government Unleashing Rooftop Solar Energy through More Efficient Government June 1, 2011 - 11:45am Addthis Solar panels on the roof of the Department of Energy Forrestal Building in Washington, D.C. | Credit: DOE photo Solar panels on the roof of the Department of Energy Forrestal Building in Washington, D.C. | Credit: DOE photo Ramamoorthy Ramesh Former Director, SunShot Initiative & Solar Energy Technologies

  7. Rooftop Solar Challenge Award Winners | Department of Energy

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

    Rooftop Solar Challenge Award Winners Rooftop Solar Challenge Award Winners Select an Awardee Return to map Rooftop Solar Challenge II Award Winners Award Winner Headquarters

  8. Structural Code Considerations for Solar Rooftop Installations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.; Dwyer, Brian P.; Sanchez, Alfred

    2014-12-01

    Residential rooftop solar panel installations are limited in part by the high cost of structural related code requirements for field installation. Permitting solar installations is difficult because there is a belief among residential permitting authorities that typical residential rooftops may be structurally inadequate to support the additional load associated with a photovoltaic (PV) solar installation. Typical engineering methods utilized to calculate stresses on a roof structure involve simplifying assumptions that render a complex non-linear structure to a basic determinate beam. This method of analysis neglects the composite action of the entire roof structure, yielding a conservative analysis based on a rafter or top chord of a truss. Consequently, the analysis can result in an overly conservative structural analysis. A literature review was conducted to gain a better understanding of the conservative nature of the regulations and codes governing residential construction and the associated structural system calculations.

  9. Rooftop Solar Challenge to Cut Solar's Red Tape | Department...

    Energy Savers [EERE]

    Rooftop Solar Challenge to Cut Solar's Red Tape Rooftop Solar Challenge to Cut Solar's Red Tape December 1, 2011 - 4:35pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor ...

  10. Phoenix American Rooftop Solar Technologies | Open Energy Information

    Open Energy Info (EERE)

    American Rooftop Solar Technologies Jump to: navigation, search Name: Phoenix American Rooftop Solar Technologies Place: Michigan Zip: 48168 Sector: Solar Product: Manufacturer of...

  11. Utility Participation in the Rooftop Solar PV Market Transcript

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

    Utility Participation in the Rooftop Solar PV Market Page 1 of 21 Kristen Ardani, Jurstin ... from two Arizona utilities that have implemented utility owned rooftop solar programs. ...

  12. Department of Veterans Affairs, FONSI - Rooftop solar PV power...

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

    Rooftop solar PV power at Calverton National Cemetery Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery An Environmental Assessment (EA) ...

  13. Final Report - Arizona Rooftop Solar Challenge | Department of Energy

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

    Arizona Rooftop Solar Challenge Final Report - Arizona Rooftop Solar Challenge Awardee: Arizona Governor's Office of Energy Policy Location: Phoenix, AZ Subprogram: Soft Costs Funding Program: Rooftop Solar Challenge 1 The Arizona Rooftop Solar Challenge (ARC) is a regional partnership of the Rooftop Solar Challenge. Funded through the U.S. Department of Energy's SunShot Initiative, this program is focused on streamlining processes and reducing costs to make solar more affordable for the

  14. Connecticut Rooftop Solar PV Permitting Guide

    Broader source: Energy.gov [DOE]

    The Connecticut Rooftop Solar PV Permitting Guide is a compilation of best practices and resources for solar PV permitting. The guide includes a summary of current codes and regulations affecting solar PV, best practices for streamlining the municipal permitting process, and tools to assist municipalities in creating a streamlined permit process for residential solar PV. Resources include a solar PV permit application, a structural review worksheet, an inspection checklist, and a model solar zoning ordinance.

  15. Rooftop Photovoltaic Panels at Premier Gardens

    Broader source: Energy.gov [DOE]

    This photograph features an aerial view of rooftops in the Premier Gardens Zero Energy Home Community. As part of the DOE’s Zero Energy Homes Initiative, Premier Homes built 95 entry-level houses in Rancho Cordova near Sacramento, California, in 2004. Each is built with advanced energy-saving features and a 2.2-kilowatt (kW) photovoltaic system.

  16. Rooftop Photovoltaic Panels at Premier Gardens

    Broader source: Energy.gov [DOE]

    This photograph features an aerial view of rooftops in the Premier Gardens Zero Energy Home Community. As part of the DOE’s Zero Energy Homes Initiative, Premier Homes built 95 entry-level houses in Rancho Cordova near Sacramento, California, in 2004. Each is built with advanced energy-saving features and a 2.2-kilowatt (kW) photovoltaic system.

  17. Modeling and Analysis of Solar Radiation Potentials on Building Rooftops

    SciTech Connect (OSTI)

    Omitaomu, Olufemi A; Kodysh, Jeffrey B; Bhaduri, Budhendra L

    2012-01-01

    The active application of photovoltaic for electricity generation could effectively transform neighborhoods and commercial districts into small, localized power plants. This application, however, relies heavily on an accurate estimation of the amount of solar radiation that is available on individual building rooftops. While many solar energy maps exist at higher spatial resolution for concentrated solar energy applications, the data from these maps are not suitable for roof-mounted photovoltaic for several reasons, including lack of data at the appropriate spatial resolution and lack of integration of building-specific characteristics into the models used to generate the maps. To address this problem, we have developed a modeling framework for estimating solar radiation potentials on individual building rooftops that is suitable for utility-scale applications as well as building-specific applications. The framework uses light detection and ranging (LIDAR) data at approximately 1-meter horizontal resolution and 0.3-meter vertical resolution as input for modeling a large number of buildings quickly. One of the strengths of this framework is the ability to parallelize its implementation. Furthermore, the framework accounts for building specific characteristics, such as roof slope, roof aspect, and shadowing effects, that are critical to roof-mounted photovoltaic systems. The resulting data has helped us to identify the so-called solar panel sweet spots on individual building rooftops and obtain accurate statistics of the variation in solar radiation as a function of time of year and geographical location.

  18. 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 ...

  19. Washington: Putting More Solar on More Rooftops in Washington State

    Broader source: Energy.gov [DOE]

    EERE SunShot Initiative awardee Evergreen State Solar Partnership (ESSP) is working to reduce the costs of installing rooftop photovoltaics.

  20. Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project

    Broader source: Energy.gov [DOE]

    Largest rooftop project in U.S. history will enable wide distribution of solar power across country while funding at least a thousand jobs

  1. Rooftop Solar Challenge: Empowering Innovators to Reach for the...

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

    of the Rooftop Solar Challenge. | Infographic by Sarah ... converts complex aerial data into an easy-to-understand ...

  2. Rooftop Solar Photovoltaic Technical Potential in the United...

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

    Contract No. DE-AC36-08GO28308 Rooftop Solar Photovoltaic ... Elmore National Renewable Energy Laboratory Technical ... Abbott-Whitley for their assistance in processing data. ...

  3. Department of Energy Commits Support for Landmark Rooftop Solar Project

    Broader source: Energy.gov [DOE]

    Largest Rooftop Project in U.S. History Will Enable Wide Distribution of Solar Power Across Country While Creating at Least a Thousand Jobs

  4. Rooftop Solar Challenge Award Number: DE-EE0000549 Project Period

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

    Arizona Rooftop Solar Challenge Award Number: DE-EE0000549 Project Period December 1, 2011 ... Policy September 30, 2013 Arizona Rooftop Solar Challenge Final Report Table of Contents ...

  5. Utility Participation in the Rooftop Solar PV Market

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

    Utility Participation in the Rooftop Solar PV Market DG Interconnection Collaborative (DGIC) January 21, 2016 Justin Orkney Program Manager of Distributed Generation Tucson Electric Power (TEP) Marc Romito Manager Arizona Public Service 2 Logistics * Participants are joined in listen-only mode. * Use the Q&A panel to ask questions during the webinar. We will have a few minutes of Q&A between each presentation and group discussion at the very end.  To ask a question: o Click Q&A

  6. Solar access of residential rooftops in four California cities

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin; Gupta, Smita

    2009-12-15

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better estimate power production and/or thermal collection by rooftop solar-energy equipment. It can also be considered when designing programs to plant shade trees. High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a well-treed 2.5-4 km{sup 2} residential neighborhood. On-hour shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Values in future years were determined by repeating these calculations after simulating tree growth. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels. For the subset of S + SW + W-facing planes on which solar equipment is commonly installed for maximum solar access, absolute light loss in spring, summer and fall peaked about 2 to 4 h after sunrise and about 2 to 4 h before sunset. The fraction of annual insolation lost to shading increased from 0.07-0.08 in the year of surface-height measurement to 0.11-0.14 after 30 years of tree growth. Only about 10% of this loss resulted from shading by trees and buildings in neighboring parcels. (author)

  7. Visual-SOLAR: Modeling and Visualization of Solar Radiation Potential on Individual Building Rooftops

    Energy Science and Technology Software Center (OSTI)

    2013-05-01

    We have developed a modeling framework for estimating solar radiation potentials on individual building rooftops that is suitable for utility-scale applications as well as building-specific applications. The framework uses light detection and ranging (LIDAR) data at approximately 1-meter horizontal resolution and 0.3-meter vertical resolution as input for modeling a large number of buildings quickly. One of the strengths of this framework is the ability to parallelize its implementation. Furthermore, the framework accounts for building specificmore » characteristics, such as roof slope, roof aspect, and shadowing effects, that are critical to roof-mounted photovoltaic system. The resulting data has helped us to identify the so-called "solar panel sweet spots" on individual building rooftops and obtain accurate statistics of the variation in solar radiation as a function of time of year and geographical location.« less

  8. Visual-SOLAR: Modeling and Visualization of Solar Radiation Potential on Individual Building Rooftops

    SciTech Connect (OSTI)

    2013-05-01

    We have developed a modeling framework for estimating solar radiation potentials on individual building rooftops that is suitable for utility-scale applications as well as building-specific applications. The framework uses light detection and ranging (LIDAR) data at approximately 1-meter horizontal resolution and 0.3-meter vertical resolution as input for modeling a large number of buildings quickly. One of the strengths of this framework is the ability to parallelize its implementation. Furthermore, the framework accounts for building specific characteristics, such as roof slope, roof aspect, and shadowing effects, that are critical to roof-mounted photovoltaic system. The resulting data has helped us to identify the so-called "solar panel sweet spots" on individual building rooftops and obtain accurate statistics of the variation in solar radiation as a function of time of year and geographical location.

  9. Episode 1: Tackling the Hidden Costs of Rooftop Solar

    Broader source: Energy.gov [DOE]

    In the very first episode of Direct Current - An Energy.gov Podcast, we take you inside the hidden costs of rooftop solar, explore the history of the Energy Department, and more!

  10. White House Solar Panels Are a Symbol of Solar's Progress | Department...

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

    An insider look at the White House rooftop solar panels. | Video courtesy of the White ... Last week, the White House released a new video highlighting the installation of solar ...

  11. Utility Participation in the Rooftop Solar PV Market Transcript

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

    Utility Participation in the Rooftop Solar PV Market Page 1 of 21 Kristen Ardani, Jurstin Orkney, Marc Romito Page 1 of 21 [Speaker: Kristen Ardani] Slide 1: Good afternoon, everyone. Thank you for joining the Distributed Generation Interconnection Collaborative Monthly Informational Webinar. My name is Kristen Ardani, and I'm an analyst here at NREL and the moderator for the DGIC. So today, we are kicking off 2016 with a joint presentation from two Arizona utilities that have implemented

  12. Estimating solar access of typical residential rooftops: A case study in San Jose, CA

    SciTech Connect (OSTI)

    Levinson, Ronnen M.; Gupta, Smita; Akbari, Hashem; Pomerantz, Melvin

    2008-03-03

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a residential neighborhood of San Jose, CA, one of four regions analyzed in a wider study of the solar access of California homes.High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a 4 km2 residential neighborhood. Hourly shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels.In the year in which surface heights were measured (2005), shadows from all sources ("total shading") reduced the insolation received by S-, SW-, and W-facing residential roofing planes in the study area by 13 - 16percent. Shadows cast by trees and buildings in neighboring parcels reduced insolation by no more than 2percent. After 30 years of simulated maximal tree growth, annual total shading increased to 19 - 22percent, and annual extraparcel shading increased to 3 - 4percent.

  13. Episode 1: Tackling the Hidden Costs of Rooftop Solar | Department of

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

    Energy Episode 1: Tackling the Hidden Costs of Rooftop Solar Episode 1: Tackling the Hidden Costs of Rooftop Solar Direct Current - An Energy.gov Podcast Energy.gov Digital Team Play audio Download File Join our hosts, Matt Dozier and Allison Lantero, as they investigate the sneaky "soft costs" driving up the price of rooftop solar, delve into the archives for a look at the turbulent times around the Energy Department's creation, and contemplate some alternatives to the name

  14. Solar Panels to Help Iowa Students Learn About Renewable Energy

    Broader source: Energy.gov [DOE]

    Learning about the sun’s power is just as important as harnessing it. New solar panels to be installed on the rooftops of five Iowa middle schools will give students hands-on experience with the technology and help offset some energy costs.

  15. Sandia Energy - Evaluating Rooftop Strength for PV

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

    Evaluating Rooftop Strength for PV Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Evaluating Rooftop Strength for PV Evaluating Rooftop Strength for...

  16. Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton

    Energy Savers [EERE]

    National Cemetery | Department of Energy Rooftop solar PV power at Calverton National Cemetery Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery An Environmental Assessment (EA) has been prepared under the direction of an interdisciplinary team analyzing the proposed construction of a Photovoltaic System at the Calvertion National Cemetery (CNC) in Calverton, New York. PDF icon CX rulemaking files More Documents & Publications Department of

  17. Rooftop Solar Challenge to Cut Solar's Red Tape | Department of Energy

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

    Challenge to Cut Solar's Red Tape Rooftop Solar Challenge to Cut Solar's Red Tape December 1, 2011 - 4:35pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does this project do? The 22 teams will implement step-by-step actions throughout the next year to standardize solar permitting processes, update planning and zoning codes, improve standards for connecting solar power to the electric grid, and increase access to financing. Up to 40

  18. Solar reflection panels

    DOE Patents [OSTI]

    Diver, Jr., Richard B.; Grossman, James W.; Reshetnik, Michael

    2006-07-18

    A solar collector comprising a glass mirror, and a composite panel, wherein the back of the mirror is affixed to a front surface of the composite panel. The composite panel comprises a front sheet affixed to a surface of a core material, preferably a core material comprising a honeycomb structure, and a back sheet affixed to an opposite surface of the core material. The invention may further comprise a sealing strip, preferably comprising EPDM, positioned between the glass mirror and the front surface of the composite panel. The invention also is of methods of making such solar collectors.

  19. EERE Success Story-Washington: Putting More Solar on More Rooftops in

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

    Washington State | Department of Energy Putting More Solar on More Rooftops in Washington State EERE Success Story-Washington: Putting More Solar on More Rooftops in Washington State November 8, 2013 - 12:00am Addthis Mercer Island celebrates the 500th Solarize installation in the state of Washington with a ribbon cutting at the Auto-Spa car wash. Mercer Island celebrates the 500th Solarize installation in the state of Washington with a ribbon cutting at the Auto-Spa car wash. EERE SunShot

  20. Solar Panels Plus LLC | Open Energy Information

    Open Energy Info (EERE)

    Panels Plus LLC Jump to: navigation, search Name: Solar Panels Plus LLC Place: Chesapeake, Virginia Zip: 23320 Sector: Solar Product: Solar Panels Plus LLC distributes solar energy...

  1. Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar

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

    Power for U.S. Military Housing | Department of Energy Loan Guarantee Would Support Large-Scale Rooftop Solar Power for U.S. Military Housing Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar Power for U.S. Military Housing September 7, 2011 - 2:10pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment for a partial guarantee of a $344 million loan that will support the SolarStrong Project, which is expected

  2. Market Transformation Pathways for Grid-Connected Rooftop Solar PV in Minnesota

    SciTech Connect (OSTI)

    Abbey, Ross; Ross, Brian

    2013-06-03

    This report presents the market and policy findings of the Minnesota Solar Challenge program. The report draws on information collected from state agencies, local government units, solar industry participants, rooftop photovoltaic (PV) adopters (sometimes called customer-generators), state and national experts, the Commerce distributed generation stakeholder process, and the numerous reports and data sets referenced herein.

  3. Hexagon solar power panel

    DOE Patents [OSTI]

    Rubin, Irwin

    1978-01-01

    A solar energy panel comprises a support upon which silicon cells are arrayed. The cells are wafer thin and of two geometrical types, both of the same area and electrical rating, namely hexagon cells and hourglass cells. The hourglass cells are composites of half hexagons. A near perfect nesting relationship of the cells achieves a high density packing whereby optimum energy production per panel area is achieved.

  4. Rooftop Solar Photovoltaic Technical Potential in the United States

    SciTech Connect (OSTI)

    Gagnon, Pieter; Margolis, Robert; Melius, Jennifer; Phillips, Caleb; Elmore, Ryan

    2016-01-01

    How much energy could we generate if PV modules were installed on all of the suitable roof area in the nation? To answer this question, we first use GIS methods to process a lidar dataset and determine the amount of roof area that is suitable for PV deployment in 128 cities nationwide, containing 23% of U.S. buildings, and provide PV-generation results for a subset of those cities. We then extend the insights from that analysis to the entire continental United States. We develop two statistical models -- one for small buildings and one for medium and large buildings -- and populate them with geographic variables that correlate with rooftop's suitability for PV. We simulate the productivity of PV installed on the suitable roof area, and present the technical potential of PV on both small buildings and medium/large buildings for every state in the continental US. Within the 128 cities covered by lidar data, 83% of small buildings have a location suitable for a PV installation, but only 26% of the total rooftop area of small buildings is suitable for development. The sheer number of buildings in this class, however, gives small buildings the greatest technical potential. Small building rooftops could accommodate 731 GW of PV capacity and generate 926 TWh/year of PV energy, approximately 65% of rooftop PV's total technical potential. We conclude by summing the PV-generation results for all building sizes and therefore answering our original question, estimating that the total national technical potential of rooftop PV is 1,118 GW of installed capacity and 1,432 TWh of annual energy generation. This equates to 39% of total national electric-sector sales.

  5. Advanced solar panel designs

    SciTech Connect (OSTI)

    Ralph, E.L.; Linder, E.

    1995-10-01

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

  6. Final Report- Streamlining Solar Standards and Process: Southern California Rooftop Challenge

    Broader source: Energy.gov [DOE]

    The Southern California Rooftop Solar Challenge (RSC) supported the goals of the Department of Energy (DOE) Solar Energy Technologies Program and the SunShot Initiative, which seeks to make solar electricity cost competitive without subsidies by the end of the decade by reducing balance of system costs for Photovoltaics (PV). In order to achieve market transformation, the California Center for Sustainable Energy (CCSE) led a regional Southern California team that focused on expanding financing options for residential and commercial customers, streamlining permitting and interconnection processes, and standardizing net metering and interconnection standards across investor- and municipally-owned utilities in the region. These goals were achieved by fostering cross jurisdictional collaboration culminating in the development of a set of regional best practices. In subsequent phases of the project, the team will build on these best practices and integrate the lessons learned in Southern California with other successful Rooftop Solar Challenge teams in California and beyond.

  7. Concentrating photovoltaic solar panel

    DOE Patents [OSTI]

    Cashion, Steven A; Bowser, Michael R; Farrelly, Mark B; Hines, Braden E; Holmes, Howard C; Johnson, Jr., Richard L; Russell, Richard J; Turk, Michael F

    2014-04-15

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

  8. Rooftop Solar Challenge Round 1 | Department of Energy

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

    ... CONNECT (Congress of Neighboring Communities), and Solar Unified Network of Western ... The team also aims to implement a formal best practice solar zoning policy and develop ...

  9. Solar Reflection Panels - Energy Innovation Portal

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

    Solar Thermal Solar Thermal Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Solar Reflection Panels Sandia National Laboratories Contact SNL About This ...

  10. Texas Solar Collaboration DOE Rooftop Solar Challenge City of Houston Project Summary

    SciTech Connect (OSTI)

    Ronk, Jennifer

    2013-02-14

    The City of Houston is committed to achieving a sustainable solar infrastructure. In 2008, Houston was named a United States Department of Energy (DOE) Solar America City. As a Solar America City, Houston teamed with the Houston Advanced Research Center (HARC), Sandia National Laboratory (Sandia), industry, and academia, to implement the Solar Houston Initiative and prepare the Solar Houston Plan. The Solar Houston initiative was focused on identifying and overcoming barriers associated with establishing a solar infrastructure that is incorporated into the City of Houston’s overall energy plan. A broad group of Houston area stakeholders, facilitated by HARC, came together to develop a comprehensive solar plan that went beyond technology to address barriers and establish demonstrations, public outreach, education programs and other activities. The plan included proposed scopes of work in four program areas: policies, solar integration, public outreach, and education. Through the support of the DOE SunShot Rooftop Solar Challenge (RSC) grant to the Texas Collaboration (San Antonio, Austin, and Hosuton), Houston has been able to implement several of the recommendations of the Solar Houston Plan. Specific recommendations that this project was able to support include; Working with the other Texas Solar America Cities (San Antonio and Austin), to harmonize permitting and inspection processes to simplify for installers and lower soft costs of installation; Participating in state level solar policy groups such as the Texas Renewable Energy Industries Association (TRIEA); Continued coordination with the local transmission and distribution utility (CenterPoint) and retail electric providers (REP); Identification of opportunities to improve permitting and interconnection; Providing training on PV systems to City inspectors; Educating the public by continuing outreach, training, and workshops, particularly using the the Green Building Resources Center; Evaluating methods of addressing financial barriers to residential solar; Maintaining www.solarhoustontx.org; and Continuing meetings with stakeholders to get ongoing feedback from the solar community on their needs. The following sections provide a brief summary of the activities completed under each of the nine tasks specifically related to the RSC grant. Reports and other backup information are included in the appendices.

  11. Utility Participation in the Rooftop Solar PV Market

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

    Generation Tucson Electric Power (TEP) The Real ... Context TEP Residential Solar Program Value to TEP and customer Tariff & bill Program Highlights ...

  12. Washington: Putting More Solar on More Rooftops in Washington...

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

    with a ribbon cutting at the Auto-Spa car wash. Mercer Island celebrates the 500th Solarize installation in the state of Washington with a ribbon cutting at the Auto-Spa car wash. ...

  13. Finding Solutions to Solar's Soft Cost Dilemma | Department of Energy

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

    Solutions to Solar's Soft Cost Dilemma Finding Solutions to Solar's Soft Cost Dilemma January 8, 2013 - 1:22pm Addthis Brian Webster installs rooftop solar panels on a home in Englewood, Colorado. The Energy Department is working to streamline rooftop solar installations so that its faster, easier and cheaper for Americans to go solar. | Photo courtesy of Dennis Schroeder, NREL. Brian Webster installs rooftop solar panels on a home in Englewood, Colorado. The Energy Department is working to

  14. Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar

    Broader source: Energy.gov [DOE]

    Nestled in the mountains of northern Arizona and just 75 miles from Grand Canyon National Park, the city of Flagstaff, Ariz. is an ideal city for the Arizona Public Service (APS) to pilot a high concentration of solar photovoltaic energy systems.

  15. Could Building Energy Codes Mandate Rooftop Solar in the Future?

    SciTech Connect (OSTI)

    Dillon, Heather E.; Antonopoulos, Chrissi A.; Solana, Amy E.; Russo, Bryan J.; Williams, Jeremiah

    2012-08-01

    This paper explores existing requirements and compliance options for both commercial and residential code structures. Common alternative compliance options are discussed including Renewable Energy Credits (RECs), green-power purchasing programs, shared solar programs and other community-based renewable energy investments. Compliance options are analyzed to consider building lifespan, cost-effectiveness, energy trade-offs, enforcement concerns and future code development. Existing onsite renewable energy codes are highlighted as case studies for the code development process.

  16. Residential and Commercial Property Assessed Clean Energy (PACE) Financing in California Rooftop Solar Challenge Areas

    Broader source: Energy.gov [DOE]

    This version of the report updates the original report published in March 2013. It identifies and describes the current state of residential and commercial property assessed clean energy (PACE) financing programs in California. The report discusses the Improvement Act of 1911, the Mello-Roos Act of 1982, the different philosophies cities have adopted in implementing PACE financing, and various PACE program structures. It also discusses the first implementation of PACE by cities that used their charter authority to create programs under the Mello-Roos Act of 1982 before the enactment of AB 811 and SB 555.1. This report focuses on PACE as a mechanism to increase the amount of rooftop solar systems installed, but also recognizes that these programs provide an effective means to finance energy and water efficiency projects. The updated report provides new information on California’s Residential PACE Loss Reserve Program, the Federal Housing Finance Agency, program requirements, and program performance.

  17. Inside the White House: Solar Panels

    Broader source: Energy.gov [DOE]

    Go inside the White House and learn about the installation of solar panels on the roof of the residence.

  18. Solar absorption surface panel

    DOE Patents [OSTI]

    Santala, Teuvo J.

    1978-01-01

    A composite metal of aluminum and nickel is used to form an economical solar absorption surface for a collector plate wherein an intermetallic compound of the aluminum and nickel provides a surface morphology with high absorptance and relatively low infrared emittance along with good durability.

  19. Bonded Bracket Assmebly for Frameless Solar Panels

    SciTech Connect (OSTI)

    Murray, Todd; Jackson, Nick; Dupont, Luc; Moser, Jeff

    2013-01-30

    In February 2011 the US Department of Energy announced their new Sunshot Initiative. The Sunshot goal is to reduce the total cost of solar energy systems by about 75 percent before the end of the decade. The DOE estimated that a total installed cost of $$1 per watt for photovoltaic systems would be equivalent to 5-6Âą/kilowatt hour (kWh) for energy available from the grid. The DOE also estimated that to meet the $1 per watt goal, PV module costs would need to be reduced to $ .50 per watt, balance of systems costs would need to be reduced to $.40 per watt, and power electronic costs would need to reach $.10 per watt. To address the BOS balance of systems cost component of the $1 per watt goal, the DOE announced a funding opportunity called (BOS-X) Extreme Balance of System Hardware Cost Reductions. The DOE identified eight areas within the total BOS costs: 1) installation labor, 2) installation materials, 3) installation overhead and profit, 4) tracker, 5) permitting and commissioning, 6) site preparation, 7) land acquisition, 8) sales tax. The BOS-X funding announcement requested applications in four specific topics;Topic 1: Transformational Building Integrated Photovoltaic (BIPV) Modules; Topic 2: Roof and Ground Mount Innovations; Topic 3: Transformational Photovoltaic System Designs; and Topic 4: Development of New Wind Load Codes for PV Systems.The application submitted by ARaymond Tinnerman reflected the requirements listed in Topic #2, Roof and Ground Mount Innovations. The goal of topic #2 was to develop technologies that would result in the extreme reduction of material and labor costs associated with applications that require physical connections and attachments to roof and ground mount structures. The topics researched in this project included component cost reduction, labor reduction, weight reduction, wiring innovations, and alternative material utilization. The project objectives included; 1) The development of an innovative quick snap bracket assembly that would be bonded to frameless PV modules for commercial rooftop installations; 2) The development of a composite pultruded rail to replace traditional racking materials; 3) In partnership with a roofing company, pilot the certification of a commercial roof to be solar panel compliant, eliminating the need for structural analysis and government oversight resulting in significantly decreased permitting costs; and 4) Reduce the sum of all cost impacts in topic #2 from a baseline total of $2.05/watt to $.34/watt.

  20. Solar panel truss mounting systems and methods

    DOE Patents [OSTI]

    Al-Haddad, Tristan Farris; Cavieres, Andres; Gentry, Russell; Goodman, Joseph; Nolan, Wade; Pitelka, Taylor; Rahimzadeh, Keyan; Brooks, Bradley; Lohr, Joshua; Crooks, Ryan; Porges, Jamie; Rubin, Daniel

    2015-10-20

    An exemplary embodiment of the present invention provides a solar panel truss mounting system comprising a base and a truss assembly coupled to the base. The truss assembly comprises a first panel rail mount, second panel rail mount parallel to the first panel rail mount, base rail mount parallel to the first and second panel rail mounts, and a plurality of support members. A first portion of the plurality of support members extends between the first and second panel rail mounts. A second portion of the plurality of support members extends between the first panel rail mount and the base rail mount. A third portion of the plurality of support members extends between the second panel rail mount and the base rail mount. The system can further comprise a plurality of connectors for coupling a plurality of photovoltaic solar panels to the truss assembly.

  1. Micro-inverter solar panel mounting

    DOE Patents [OSTI]

    Morris, John; Gilchrist, Phillip Charles

    2016-02-02

    Processes, systems, devices, and articles of manufacture are provided. Each may include adapting micro-inverters initially configured for frame-mounting to mounting on a frameless solar panel. This securement may include using an adaptive clamp or several adaptive clamps secured to a micro-inverter or its components, and using compressive forces applied directly to the solar panel to secure the adaptive clamp and the components to the solar panel. The clamps can also include compressive spacers and safeties for managing the compressive forces exerted on the solar panels. Friction zones may also be used for managing slipping between the clamp and the solar panel during or after installation. Adjustments to the clamps may be carried out through various means and by changing the physical size of the clamps themselves.

  2. Divya Energy Solar Panel Savings Calculator | Open Energy Information

    Open Energy Info (EERE)

    Divya Energy Solar Panel Savings Calculator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Divya Energy Solar Panel Savings Calculator AgencyCompany Organization:...

  3. "PBS NEWSHOUR" covers new technique that may make solar panel...

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

    covers new technique that may make solar panel production less expensive "PBS NEWSHOUR" covers new technique that may make solar panel production less expensive Scientists have ...

  4. Test plan : reducing soft costs of rooftop solar installations attributed to structural considerations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.

    2013-05-01

    This test plan is a document that provides a systematic approach to the planned testing of rooftop structures to determine their actual load carrying capacity. This document identifies typical tests to be performed, the responsible parties for testing, the general feature of the tests, the testing approach, test deliverables, testing schedule, monitoring requirements, and environmental and safety compliance.

  5. Rooftop Solar Photovoltaic Technical Potential in the United States. A Detailed Assessment

    SciTech Connect (OSTI)

    Gagnon, Pieter; Margolis, Robert; Melius, Jennifer; Phillips, Caleb; Elmore, Ryan

    2016-01-01

    How much energy could be generated if PV modules were installed on all of the suitable roof area in the nation? To answer this question, we first use GIS methods to process a lidar dataset and determine the amount of roof area that is suitable for PV deployment in 128 cities nationwide, containing 23% of U.S. buildings, and provide PV-generation results for a subset of those cities. We then extend the insights from that analysis to the entire continental United States. We develop two statistical models--one for small buildings and one for medium and large buildings--and populate them with geographic variables that correlate with rooftop's suitability for PV. We simulate the productivity of PV installed on the suitable roof area, and present the technical potential of PV on both small buildings and medium/large buildings for every state in the continental US. Within the 128 cities covered by lidar data, 83% of small buildings have a location suitable for a PV installation, but only 26% of the total rooftop area of small buildings is suitable for development. The sheer number of buildings in this class, however, gives small buildings the greatest technical potential. Small building rooftops could accommodate 731 GW of PV capacity and generate 926 TWh/year of PV energy, approximately 65% of rooftop PV's total technical potential. We conclude by summing the PV-generation results for all building sizes and therefore answering our original question, estimating that the total national technical potential of rooftop PV is 1,118 GW of installed capacity and 1,432 TWh of annual energy generation. This equates to 39% of total national electric-sector sales.

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

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

    Turning windows into solar panels Science on the Hill: 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

  7. Roof-top solar energy potential under performance-based building energy codes: The case of Spain

    SciTech Connect (OSTI)

    Izquierdo, Salvador; Montanes, Carlos; Dopazo, Cesar; Fueyo, Norberto

    2011-01-15

    The quantification at regional level of the amount of energy (for thermal uses and for electricity) that can be generated by using solar systems in buildings is hindered by the availability of data for roof area estimation. In this note, we build on an existing geo-referenced method for determining available roof area for solar facilities in Spain to produce a quantitative picture of the likely limits of roof-top solar energy. The installation of solar hot water systems (SHWS) and photovoltaic systems (PV) is considered. After satisfying up to 70% (if possible) of the service hot water demand in every municipality, PV systems are installed in the remaining roof area. Results show that, applying this performance-based criterion, SHWS would contribute up to 1662 ktoe/y of primary energy (or 68.5% of the total thermal-energy demand for service hot water), while PV systems would provide 10 T W h/y of electricity (or 4.0% of the total electricity demand). (author)

  8. SunShot Prize: America's Most Affordable Rooftop Solar: A Competition To Spur Low-Cost Rooftop Solar Installations Across The Nation (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01

    The SunShot Prize encourages novel public-private partnerships, original business models, and innovative approaches to installing clean, renewable solar energy. The sustainable business strategies developed by participants will provide transferable lessons that can be applied nationwide to hasten America's transition to affordable clean energy in a post-subsidy market.

  9. Prediction of Solar Radiation on Building Rooftops: A Data-Mining Approach

    SciTech Connect (OSTI)

    Omitaomu, Olufemi A; Bhaduri, Budhendra L; Kodysh, Jeffrey B

    2012-01-01

    Solar energy technologies offer a clean, renewable, and domestic energy source, and are essential components of a sustainable energy future. The accurate measurement of solar radiation data is essential for optimum site selection of future distributed solar power plants as well as sizing photovoltaic systems. However, solar radiation data are not readily available because measured sequences of radiation values are obtained for a few locations in a country. When the data are available, they are usually at different time periods and spatial scale. The availability of solar radiation data at hourly or daily time scale will enhance the integration of solar energy into electricity generation and promote a sustainable energy future. The ability to generate approximate solar radiation values is often the only practical way to obtain radiation data at hourly or daily time scale. As a result, several models have been developed for estimating solar radiation values based on analytical, numerical simulation, and statistical approaches. However, these models have inherent challenges. We will discuss some of those challenges in this paper. To enhance the prediction of solar radiation values, a novel approach is presented for estimating solar radiation values using support vector machine technique. The approach accounts for unique characteristics that influence solar radiation values. The preliminary results obtained offer useful insights for model enhancements.

  10. Solar Panels Hit Energy Milestone For Potawatomi and Milwaukee | Department

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

    of Energy Panels Hit Energy Milestone For Potawatomi and Milwaukee Solar Panels Hit Energy Milestone For Potawatomi and Milwaukee October 26, 2011 - 10:44am Addthis The Forest County Potawatomi Tribe finishes installing solar panels on a Milwaukee, Wisconsin, administration building. | Photo courtesy of the Forest County Potawatomi Tribe The Forest County Potawatomi Tribe finishes installing solar panels on a Milwaukee, Wisconsin, administration building. | Photo courtesy of the Forest

  11. SolarTile: A rooftop integrated photovoltaic system. Phase 1, final report

    SciTech Connect (OSTI)

    1998-03-26

    AstroPower, Royal Group Technologies, and Solar Design Associates are jointly developing an integrated photovoltaic roofing system for residential and light commercial building applications. This family of products will rely heavily on the technological development of a roofing tile made from recycled plastic and innovative module fabrication and encapsulation processes in conjunction with an advanced Silicon-Film{trademark} solar cell product. This solar power generating roofing product is presently being referred to as the SolarTile. A conceptual drawing of the solar roofing tile is shown. The SolarTile will be integrated with non-solar tiles in a single roof installation permitting ease of assembly and the ability to use conventional roofing techniques at ridges, valleys, and eaves. The Phase 1 effort included tasks aimed at the development of the proposed product concept; product manufacturing or fabrication, and installation cost estimates; business planning; and a market assessment of the proposed product, including target selling prices, target market sectors, size estimates for each market sector, and planned distribution mechanisms for market penetration. Technical goals as stated in the Phase 1 proposal and relevant progress are reported.

  12. EERE Success Story-Washington: Putting More Solar on More Rooftops...

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

    with a ribbon cutting at the Auto-Spa car wash. Mercer Island celebrates the 500th Solarize installation in the state of Washington with a ribbon cutting at the Auto-Spa car wash. ...

  13. Solar collector panels (process-method). Rainwater collection and storage

    SciTech Connect (OSTI)

    Mowery, J.W.

    1981-10-15

    A process for producing panels for solar heating of potable water is described. The panels have PVC tubing flat-coiled into square or rectangular shapes. Also described is a cistern for collecting and storing rainwater. (LEW)

  14. Permits and Variances for Solar Panels, Calculation of Impervious...

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

    construction, or stormwater may only include the foundation or base supporting the solar panel. The law generally applies statewide, including charter counties and Baltimore...

  15. Turning Windows into Solar Panels | Department of Energy

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

    Windows into Solar Panels Turning Windows into Solar Panels March 7, 2016 - 3:23pm Addthis UV light shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. UV light shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. Victor Klimov Los Alamos National

  16. Final row of solar panels installed at Livermore | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration Blog Final row of solar panels installed at Livermore Monday, January 11, 2016 - 1:14pm NNSA Blog The last row of panels at the Whitethorn Solar Facility project site at Lawrence Livermore National Laboratory in California was installed last week. When complete, the 3.3 MW fixed-tilt solar photovoltaic facility will represent the largest DOE/NNSA purchase of solar energy from an onsite facility. Electrical installation will continue for several more weeks, then

  17. Evaluating Rooftop Strength for PV

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

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

  18. Solar Decathlon Technology Spotlight: Structural Insulated Panels

    Broader source: Energy.gov [DOE]

    Structural insulated panels (SIPs) are prefabricated structural elements used to build walls, ceilings, floors, and roofs.

  19. Advanced Rooftop Unit Control

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

    Advanced-Rooftop-Unit-Control Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors...

  20. Printed decorative solar panels could become part of our homes...

    Open Energy Info (EERE)

    content Printed decorative solar panels could become part of our homes and offices Hello, I provide user supp... The top one on this page: htt... Can you send the specific...

  1. City and County of Denver- Solar Panel Permitting

    Office of Energy Efficiency and Renewable Energy (EERE)

    Denver provides same-day permit review for most solar panel projects. Electrical, Plumbing, and Zoning Permits* are required for photovoltaic (PV) systems installed in the city of Denver, althoug...

  2. Solar Decathlon Technology Spotlight: Structural Insulated Panels...

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

    Structural insulated panels (SIPs) are prefabricated structural elements used to build walls, ceilings, floors, and roofs. Made of foam insulation sandwiched between two layers of ...

  3. Next Generation Rooftop Unit | Department of Energy

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

    Emerging Technologies Next Generation Rooftop Unit Next Generation Rooftop Unit The U.S. Department of Energy is currently conducting research in a next generation rooftop unit ...

  4. Integration of Photovoltaics into Building Energy Usage through Advanced Control of Rooftop Unit

    SciTech Connect (OSTI)

    Starke, Michael R; Nutaro, James J; Irminger, Philip; Ollis, Benjamin; Kuruganti, Phani Teja; Fugate, David L

    2014-01-01

    This paper presents a computational approach to forecast photovoltaic (PV) power in kW based on a neural network linkage of publicly available cloud cover data and on-site solar irradiance sensor data. We also describe a control approach to utilize rooftop air conditioning units (RTUs) to support renewable integration. The PV forecasting method is validated using data from a rooftop PV panel installed on the Distributed Energy, Communications, and Controls (DECC) laboratory at Oak Ridge National Laboratory. The validation occurs in multiple phases to ensure that each component of the approach is the best representation of the actual expected output. The control of the RTU is based on model predictive methods.

  5. Big solar-panel maker First Solar and Colorado's Clean Energy...

    Open Energy Info (EERE)

    Big solar-panel maker First Solar and Colorado's Clean Energy Collective ink deal Home > Groups > Buildings Dc's picture Submitted by Dc(266) Contributor 11 December, 2014 - 15:40...

  6. VISUAL-SOLAR

    Energy Science and Technology Software Center (OSTI)

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

  7. Solar Panel and Induction Lighting Project

    SciTech Connect (OSTI)

    Gresek, Michael

    2014-01-21

    Installation of solar and energy saving lighting technologies at municipal facilities to: Produce and conserve electricity for these facilities; saving money and the environment; lead by example; educate the public on conservation and renewable technologies.

  8. Next Generation Rooftop Unit - 2013 Peer Review | Department...

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

    Rooftop Unit - 2013 Peer Review Next Generation Rooftop Unit - 2013 Peer Review Emerging ... Credit: Oak Ridge National Lab Next Generation Rooftop Unit Rooftop Unit Suite: RTU ...

  9. Solar collector panels having coated fibrous filling for fire inhibition

    SciTech Connect (OSTI)

    Reinert, C.P.

    1982-04-13

    Solar collector panels filled with porous fiber mats have the fibers coated with a pigmented intumescent paint which expands to partially fill the spaces between the fibers for retarding convective fluid flow through the fiber mat in the case of a fire in the structure with which the collector is associated.

  10. Arkansas Students Get Their Hands Dirty in Solar Panel Project

    Broader source: Energy.gov [DOE]

    Wallie Shaw remembers where he got the idea to do a hands-on solar panel project for his Jobs for America’s Graduates (JAG) students, a school-to-work transition program focused on helping at-risk youth graduate from high school.

  11. Solar panel driven air purging apparatus for motor vehicles

    SciTech Connect (OSTI)

    Bobier, J.A.; Brown, G.E.

    1992-02-18

    This patent describes improvement in a motor vehicle having an enclosable cabin an internal combustion engine, a battery, an ignition switch having an on position for enabling the internal combustion engine and an off position, an electric motor coupled in driving relationship with an air circulating fan for circulating air through the cabin. The improvement comprises: a solar panel mounted upon the vehicle having a panel output exhibiting variable voltage levels including a peak voltage level and substantially constant current; a power transfer regulator for transferring power form the panel to the motor when enabled, including: energy storage means connectable across the panel output and chargeable by the current to variable charge levels; solid-state switch means connected in energy transfer relationship with the energy storage means and actuable between conducting and non-conducting states when the power transfer regulator is enabled; inductor means connected with the solid-state switch means and connectable with the electric motor for conveying current thereto from the panel and the energy storage means when the solid-state switch means is in the conducting state.

  12. Rooftop Diagnostician - Energy Innovation Portal

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

    Rooftop Diagnostician Pacific Northwest National Laboratory Contact PNNL About This Technology The diagnostician is a self-contained unit that can be installed in any rooftop package unit. The diagnostician is a self-contained unit that can be installed in any rooftop package unit. Once powered up, results are available and can be viewed at the device's web site. Once powered up, results are available and can be viewed at the device's web site. Technology Marketing Summary The Rooftop

  13. "PBS NEWSHOUR" covers new technique that may make solar panel production

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

    less expensive "PBS NEWSHOUR" covers new technique that may make solar panel production less expensive "PBS NEWSHOUR" covers new technique that may make solar panel production less expensive Scientists have developed a more efficient method of creating the material that makes solar panels work, according to a report published this week, which researchers say could be key to creating clean global energy in the future. April 24, 2015 image description Scientists Aditya

  14. Innovative Solar Panel Maker Scales Up, Lowering Costs while Creating Jobs

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

    | Department of Energy Solar Panel Maker Scales Up, Lowering Costs while Creating Jobs Innovative Solar Panel Maker Scales Up, Lowering Costs while Creating Jobs May 16, 2011 - 12:41pm Addthis The end of Abound Solarñ€™s PV manufacturing line | Photo Courtesy of Abound Solar The end of Abound Solar's PV manufacturing line | Photo Courtesy of Abound Solar Minh Le Minh Le Deputy Director, Solar Energy Technologies Office It's one thing to call solar energy a "growth industry,"

  15. Modeling the U.S. Rooftop Photovoltaics Market

    SciTech Connect (OSTI)

    Drury, E.; Denholm, P.; Margolis, R.

    2010-09-01

    Global rooftop PV markets are growing rapidly, fueled by a combination of declining PV prices and several policy-based incentives. The future growth, and size, of the rooftop market is highly dependent on continued PV cost reductions, financing options, net metering policy, carbon prices and future incentives. Several PV market penetration models, sharing a similar structure and methodology, have been developed over the last decade to quantify the impacts of these factors on market growth. This study uses a geospatially rich, bottom-up, PV market penetration model--the Solar Deployment Systems (SolarDS) model developed by the National Renewable Energy Laboratory--to explore key market and policy-based drivers for residential and commercial rooftop PV markets. The identified drivers include a range of options from traditional incentives, to attractive customer financing options, to net metering and carbon policy.

  16. Retrofitting Inefficient Rooftop Air-Conditioning Units Reduces...

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

    Retrofitting Inefficient Rooftop Air-Conditioning Units Reduces U.S. Navy Energy Use As ... One such technology- retrofitting rooftop air- conditioning units with an advanced rooftop ...

  17. Obama Administration Announces Plans to Install New Solar Panels on the

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

    White House Residence | Department of Energy Plans to Install New Solar Panels on the White House Residence Obama Administration Announces Plans to Install New Solar Panels on the White House Residence October 5, 2010 - 12:00am Addthis WASHINGTON - U.S. Energy Secretary Steven Chu and Council of Environmental Quality (CEQ) Chair Nancy Sutley today announced plans to install solar panels and a solar hot water heater on the roof of the White House Residence. These two solar installations will

  18. Rooftop Photovoltaics Market Penetration Scenarios

    SciTech Connect (OSTI)

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

    2008-02-01

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

  19. Carports with Solar Panels do Double Duty for Navy | Department of Energy

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

    Carports with Solar Panels do Double Duty for Navy Carports with Solar Panels do Double Duty for Navy May 14, 2010 - 12:22pm Addthis Joshua DeLung What does this project do? In total, all of China Lake's solar PV projects generate enough electricity a year to power up to 1,200 houses on the grid provided by Southern California Edison, the local utility. The base estimates that it saves about $557,000 a year from the solar panels. At Naval Air Weapons Station China Lake, heat is a fact of life.

  20. New GE Plant to Produce Thin Film PV Solar Panels Based on NREL Technology

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

    | Department of Energy GE Plant to Produce Thin Film PV Solar Panels Based on NREL Technology New GE Plant to Produce Thin Film PV Solar Panels Based on NREL Technology April 22, 2011 - 10:17am Addthis Photo courtesy of General Electric Photo courtesy of General Electric Minh Le Minh Le Deputy Director, Solar Energy Technologies Office Earlier this month, General Electric announced plans to enter the global marketplace for solar photovoltaic (PV) panels in a big way - and to do it, they will

  1. Milk, Eggs and Solar: Grocery Co-Op Puts Photovoltaics to Work

    Broader source: Energy.gov [DOE]

    Grocery shoppers in Burlington, Vt., are picking up much more than food and household items these days. Strolling the aisles of community-owned City Market, the 3,000 daily customers also learn about the co-op's 136 rooftop photovoltaic panels and monthly "Solar Made Simple" seminars.

  2. SunShot Rooftop Challenge Awardees

    Broader source: Energy.gov [DOE]

    Awardees, partners, award amounts, estimated population, and project descriptions for the 2011 SunShot Rooftop Challenge.

  3. DOE Awards $12 Million to Spur Rapid Adoption of Solar Energy...

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

    Million to Spur Rapid Adoption of Solar Energy with the Rooftop Solar Challenge DOE Awards 12 Million to Spur Rapid Adoption of Solar Energy with the Rooftop Solar Challenge ...

  4. Webinar: Evaluating Roof Structures for Solar PV

    Broader source: Energy.gov [DOE]

    This webinar provides an overview of Connecticut's Structural Review Worksheet for Residential Rooftop Solar PV Systems. The webinar explains how the worksheet should be used and common concerns with wind and dead loads for rooftop solar PV.

  5. Have a great idea about how to cut the cost of solar panel installatio...

    Open Energy Info (EERE)

    Have a great idea about how to cut the cost of solar panel installation? Home > Groups > Buildings Dc's picture Submitted by Dc(266) Contributor 7 November, 2014 - 12:13 As prices...

  6. EERE Success Story-Putting Solar Panels to the Test | Department of

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

    Energy Putting Solar Panels to the Test EERE Success Story-Putting Solar Panels to the Test October 29, 2015 - 3:46pm Addthis This solar photovoltaic (PV) array is being tested in hot, humid weather at the Cocoa, Florida Regional Test Center. This solar photovoltaic (PV) array is being tested in hot, humid weather at the Cocoa, Florida Regional Test Center. Mother Nature can be unpredictable. Sometimes she sends hail; other times, damaging winds; and if you live in a cold climate, she loves

  7. Interagency Advanced Power Group Solar Photovoltaic Panel Fall meeting minutes, October 22, 1992

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    This report contains discussions on the following topics: Leaf, TPL, and {sup 60}Co Gamma source testing facilities; in-house photovolatic research effort; US Army`s interest developing small thermophotovoatic power source for a variety of missions; charging lead acid batteries with unregulated photovolatic panels; testing of solar array panels for space applications; polycrystalline CuInSe{sub 2} & CdTe PV solar cells and, current activities in the US photovolatic program.

  8. Million Solar Strong | Department of Energy

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

    This rooftop solar array in Connecticut was built thanks to a Solarize campaign, which helps to make solar energy more affordable by aggregating customer demand to lower prices. ...

  9. Largest Solar Panel Installation at a U.S. University Goes Live |

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

    Department of Energy Largest Solar Panel Installation at a U.S. University Goes Live Largest Solar Panel Installation at a U.S. University Goes Live November 4, 2010 - 6:10pm Addthis Sen. Menendez, Rep. Pascrell, John Lushetsky and other officials at the ribbon cutting. Sen. Menendez, Rep. Pascrell, John Lushetsky and other officials at the ribbon cutting. A couple of weeks ago, I had the opportunity to participate in a ribbon cutting event for the largest solar installation on a United

  10. Broward County Online Solar Permitting

    Broader source: Energy.gov [DOE]

    Broward County now offers Go SOLAR Online Permitting*, for rooftop solar photovoltaic system permitting. This online permitting system may be used for residential or low commercial properties that...

  11. Namaste Solar | Open Energy Information

    Open Energy Info (EERE)

    search Name: Namaste Solar Place: Colorado Product: Namaste has 60 employees and installs rooftop PV systems in Colorado. References: Namaste Solar1 This article is a stub. You...

  12. Seasonal control skylight glazing panel with passive solar energy switching

    SciTech Connect (OSTI)

    Miller, J.V.

    1983-10-25

    A substantially transparent one-piece glazing panel is provided for generally horizontal mounting in a skylight. The panel is comprised of an repeated pattern of two alternating and contiguous linear optical elements; a first optical element being an upstanding generally right-triangular linear prism, and the second optical element being an upward-facing plano-cylindrical lens in which the planar surface is reflectively opaque and is generally in the same plane as the base of the triangular prism.

  13. Sandia Rooftop PV Structural Report Webinar

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

    Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid ... Sandia Rooftop PV Structural Report Webinar A roof structure is made ...

  14. Using Maps to Predict Solar Futures | Department of Energy

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

    Using Maps to Predict Solar Futures Using Maps to Predict Solar Futures June 19, 2015 - 1:43pm Addthis Using Maps to Predict Solar Futures Dr. Lidija Sekaric Dr. Lidija Sekaric Solar Energy Technologies Office Director When first exploring the possibility of going solar, many consumers have questions: How many panels will I need for my rooftop? What is this going to cost me? How much will I save on my electricity bills? Awardees of the Energy Department's SunShot Initiative are working to help

  15. Demonstrations of Integrated Advanced Rooftop Unit Controls and...

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

    PDF icon Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated Fault ... and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Rooftop Unit ...

  16. Demonstrations of Integrated Advanced Rooftop Unit Controls and...

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

    Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated Fault Detection and Diagnostics - 2014 BTO Peer Review Demonstrations of Integrated Advanced Rooftop Unit...

  17. Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review...

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

    Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review Presenter: Jim Braun, Purdue University (The ...

  18. ADVANCED REFLECTIVE FILMS AND PANELS FOR NEXT GENERATION SOLAR COLLECTORS

    Broader source: Energy.gov [DOE]

    This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23–25, 2013 near Phoenix, Arizona.

  19. Geostellar: Remote Solar Energy Assessments Personalized

    SciTech Connect (OSTI)

    2015-10-01

    Geostellar has produced an online tool that generates a unique solar profile for homeowners to learn about the financial benefits to installing rooftop solar panels on their home. The website incorporates the physical building characteristics of the home, including shading, slope, and orientation of the roof, and applies electricity costs and incentives to determine the best solar energy estimated energy production values against actual installed rooftop photovoltaic systems. The validation conducted by NREL concluded that over three-quarters of Geostellar's potential size estimates are at least as large as the actual installed systems, indicating a correct assessment of roof availability. In addition, 87% of Geostellar's 25-year production estimates are within 90% of the actual PV Watts results.

  20. Ice storage rooftop retrofit for rooftop air conditioning

    SciTech Connect (OSTI)

    Tomlinson, J.J.; Jennings, L.W.

    1997-09-01

    A significant fraction of the floor space in commercial and federal buildings is cooled by single-package rooftop air conditioning units. These units are located on flat roofs and usually operate during the day under hot conditions. They are usually less energy efficient than a chiller system for building cooling. Several U.S. companies are developing systems that employ ice storage in conjunction with chillers to replace older, inefficient rooftop units for improved performance and minimal use of on-peak electricity. Although the low evaporator temperatures needed for ice making tend to reduce the efficiency of the chiller, the overall operating costs of the ice storage system may be lower than that of a packaged, conventional rooftop installation. One version of this concept, the Roofberg{reg_sign} System developed by the Calmac Corporation, was evaluated on a small building at Oak Ridge National Laboratory in Oak Ridge, Tennessee. The Roofberg system consists of a chiller, an ice storage tank, and one or more rooftop units whose evaporator coils have been adapted to use a glycol solution for cooling. The ice storage component decouples the cooling demand of the building from the operation of the chiller. Therefore, the chiller can operate at night (cooler, more efficient condensing temperatures) to meet a daytime cooling demand. This flexibility permits a smaller chiller to satisfy a larger peak cooling load. Further, the system can be operated to shift the cooling demand to off-peak hours when electricity from the utility is generated more efficiently and at lower cost. This Roofberg system was successfully installed last year on a small one-story office building in Oak Ridge and is currently being operated to cool the building. The building and system were sufficiently instrumented to allow a determination of the performance and efficiency of the Roofberg system. Although the energy efficiency of a simulated Roofberg storage/chiller concept operating in the full storage mode was about equal to what could be expected through a simple rooftop efficiency upgrade, the operating costs for the Roofberg system could be much more favorable depending on the utility rate structure. The ability of Roofberg to move much of the cooling load to off-peak periods enables it to take advantage of on-peak demand charges and time-of-use electricity rates. The Roofberg system, as installed, was able to reduce the on-peak energy use of the cooling system to 35% of the on-peak energy consumption of the baseline system. A comparative analysis of a rooftop replacement and Roofberg indicated that the Roofberg system on Building 2518 would be the better economic choice over a range of demand charges and on-off peak energy prices which are typical of utility rate tariffs for commercial buildings.

  1. City of Chicago- Solar Express Permit Program

    Broader source: Energy.gov [DOE]

    In 2013, the City of Chicago streamlined and standardized the permitting and zoning process for rooftop solar photovoltaic (PV) systems. Small and large rooftop PV generators can now access the...

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

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

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

  3. Final Report - Efficient Solar Market Partners of Northern California...

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

    PDF icon SolarTech RSC 5685.pdf More Documents & Publications SunShot Rooftop Challenge Awardees Santa Rosa, California: Solar in Action (Brochure), Solar America Cities, Energy ...

  4. Overcoming Solar Roadblocks: There's a Map for That

    Broader source: Energy.gov [DOE]

    Optony, through the Southwest Solar Transformation Initiative (SSTI), successfully launched their Solar Roadmap with support from the U.S. Department of Energy's Rooftop Solar Challenge. This...

  5. ADVANCED REFLECTIVE FILMS AND PANELS FOR NEXT GENERATION SOLAR...

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

    This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23-25, 2013 near Phoenix, Arizona. PDF icon cspreviewmeeting042313...

  6. Carports with Solar Panels do Double Duty for Navy | Department...

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

    14, 2010 - 12:22pm Addthis Joshua DeLung What does this project do? In total, all of China Lake's solar PV projects generate enough electricity a year to power up to 1,200...

  7. New Ideas for Seeding Your Solar Marketplace Workshop Panel Presentations

    Broader source: Energy.gov [DOE]

    Download the speaker presentations from the 2014 SunShot Grand Challenge Summit and Peer Review Workshop, "New Ideas for Seeding Your Solar Marketplace: Program Pilots and Embedded Experiments."

  8. OCR Solar Roofing Inc | Open Energy Information

    Open Energy Info (EERE)

    OCR Solar Roofing Inc Jump to: navigation, search Name: OCR Solar & Roofing Inc Place: Vacaville, California Product: US installer of turnkey PV rooftops, focussing on the Northern...

  9. Denver Public Schools Get Solar Energy System

    Broader source: Energy.gov [DOE]

    Main Street Power, a solar development company based in Boulder, is installing solar photovoltaic systems on the rooftops of 12 Denver Public Schools.

  10. Department of Energy responses to panel recommendations from the open workshop on solar technologies

    SciTech Connect (OSTI)

    Not Available

    1980-07-01

    This document is a companion to the Proceedings of the Open Workshop on Solar Technologies, 23 and 24 October 1979, Washington, DC. That document reported the findings and conclusions of six panels on the policies of the Department of Energy (DOE) on solar energy and its relationships to cities and employment. The present document provides DOE responses to each panel's recommendations. Sixty individuals from a wide variety of backgrounds agreed to take part in the deliberations of the six panels. There were three panels on solar energy in the cities and three on solar energy and employment. A significant portion of the participants represented public interest groups; lesser numbers were from government and industry. Interested persons were publicly invited to observe. About 120 additional persons responded, bringing the total to 180 participants. Appendices include: (1) a selected guide to federal energy and education assistance; (2) resources for community energy programs and community energy assistance, by state; and (3) summary and data on federal energy education, extension, and information activities. (WHK)

  11. You Don't Need to Raise the Roof: Cutting Solar Permitting Costs...

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

    You Don't Need to Raise the Roof: Cutting Solar Permitting Costs for Wooden Rooftops You Don't Need to Raise the Roof: Cutting Solar Permitting Costs for Wooden Rooftops June 17, ...

  12. Building-Integrated Photovoltaics (BIPV) in the Residential Sector: An Analysis of Installed Rooftop System Prices

    SciTech Connect (OSTI)

    James, T.; Goodrich, A.; Woodhouse, M.; Margolis, R.; Ong, S.

    2011-11-01

    For more than 30 years, there have been strong efforts to accelerate the deployment of solar-electric systems by developing photovoltaic (PV) products that are fully integrated with building materials. This report examines the status of building-integrated PV (BIPV), with a focus on the cost drivers of residential rooftop systems, and explores key opportunities and challenges in the marketplace.

  13. Assessment of Rooftop Area in Austin Energy's Service Territory Suitable for PV Development

    Broader source: Energy.gov [DOE]

    As part of the Solar America Cities program, Austin Energy proposed to perform an assessment of the rooftop area available for PV development within its service area. Austin Energy contracted with Clean Energy Associates (CEA) to perform the analysis. This report summarizes the project objectives, data sources and methodological approach employed, and results.

  14. EERE Success Story-SolarBridge Technologies: Helping Solar Modules...

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

    SolarBridge Technologies is collaborating with the University of Illinois at Urbana-Champaign to develop an innovative solution to make rooftop photovoltaic (PV) systems easier to ...

  15. Estimating Rooftop Suitability for PV: A Review of Methods, Patents, and Validation Techniques

    SciTech Connect (OSTI)

    Melius, J.; Margolis, R.; Ong, S.

    2013-12-01

    A number of methods have been developed using remote sensing data to estimate rooftop area suitable for the installation of photovoltaics (PV) at various geospatial resolutions. This report reviews the literature and patents on methods for estimating rooftop-area appropriate for PV, including constant-value methods, manual selection methods, and GIS-based methods. This report also presents NREL's proposed method for estimating suitable rooftop area for PV using Light Detection and Ranging (LiDAR) data in conjunction with a GIS model to predict areas with appropriate slope, orientation, and sunlight. NREL's method is validated against solar installation data from New Jersey, Colorado, and California to compare modeled results to actual on-the-ground measurements.

  16. Chicago Region Solar Market Transformation Team SunShot Initiative...

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

    5, 2013 Chicago Region Solar Market Transformation Team SunShot Initiative - Rooftop Solar Challenge (RSC) I Final Report To: Josh Huneycutt, DOE Program Administrator This final ...

  17. Solar Water Heating System Maintenance and Repair | Department...

    Energy Savers [EERE]

    Water Heating System Maintenance and Repair Solar Water Heating System Maintenance and Repair Rooftop solar water heaters need regular maintenance to operate at peak efficiency. | ...

  18. Solar Water Heating System Maintenance and Repair | Department...

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

    Water Heating System Maintenance and Repair Solar Water Heating System Maintenance and Repair Rooftop solar water heaters need regular maintenance to operate at peak efficiency. |...

  19. Largest On-Campus Solar Facility Being Installed at William Paterson |

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

    Department of Energy Largest On-Campus Solar Facility Being Installed at William Paterson Largest On-Campus Solar Facility Being Installed at William Paterson March 29, 2010 - 10:57am Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs What does this project do? Solar arrays at parking lots and photovoltaic cells on the rooftops of campus buildings should provide about 15 to 20 percent of our energy needs on the campus. Cranes place solar panels on roofs and

  20. An Update on White House Solar Panels and Our Solar Program

    Broader source: Energy.gov [DOE]

    The Energy Department remains on the path to complete the White House solar demonstration project. This project is one component of the Energy Department’s larger, ambitious SunShot Initiative to reduce the total installed cost of solar energy systems by about 75 percent before the end of the decade.

  1. Technical evaluation of a solar heating system having conventional hydronic solar collectors and a radiant panel slab. Final report

    SciTech Connect (OSTI)

    Starr, R.J.

    1984-04-01

    A simple innovative solar heating design (Solar Option One) using conventional hydronic solar collectors and a radiant panel slab was constructed. An objective of hybrid solar design is to combine the relative advantages of active and passive design approaches while minimizing their respective disadvantages. A test house using the Solar Option One heating system was experimentally monitored to determine its energy based performance during the 1982-83 heating season. The test residence is located in Lyndonville, Vermont, an area which has a characteristically cold and cloudy climate. The two story residence has a floor area of about 1400 square feet and is constructed on a 720 square foot 5.5 inch thick floor slab. A 24 inch packed gravel bed is located beneath the slab and the slab-gravel bed is insulated by two inches of polystyrene insulation. The test building is of frame construction and uses insulation levels which have become commonplace throughout the country. The structure would not fall into the superinsulated category but was tightly constructed so as to have a low infiltration level. The building is sun-tempered in that windows were concentrated somewhat on the South side and all but avoided on the North. A solar greenhouse on the South side of the building was closed off from the structure permanently throughout the testing so as to better observe the solar heating invention without confounding variables. The monitoring equipment generated an internal gain of about 17,000 BTUs per day, roughly the equivalent of occupancy by two persons. A full description of the experimental testing program is given. System efficiency and performance are reported.

  2. Final Report- Grow Solar Wisconsin Team

    Broader source: Energy.gov [DOE]

    Awardee: Midwest Renewable Energy AssociationLocation: Custer, WISubprogram: Soft CostsFunding Program: Rooftop Solar Challenge 1

  3. All Day Solar | Open Energy Information

    Open Energy Info (EERE)

    stage company planning to manufacture flexible thin-film PV modules for vehicular rooftop applications. References: All Day Solar1 This article is a stub. You can help...

  4. Better Buildings Alliance, Advanced Rooftop Unit Campaign: Rooftop Unit Measurement and Verification (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-09-01

    This document provides facility managers and building owners an introduction to measurement and verification (M&V) methods to estimate energy and cost savings of rooftop units replacement or retrofit projects to estimate paybacks or to justify future projects.

  5. Commercial Buildings High Performance Rooftop Unit Challenge

    SciTech Connect (OSTI)

    2011-12-16

    The U.S. Department of Energy (DOE) and the Commercial Building Energy Alliances (CBEAs) are releasing a new design specification for high performance rooftop air conditioning units (RTUs). Manufacturers who develop RTUs based on this new specification will find strong interest from the commercial sector due to the energy and financial savings.

  6. Promising Technology: High-Efficiency Rooftop Units

    Broader source: Energy.gov [DOE]

    High-efficiency rooftop air conditioning units (RTUs) can significantly reduce heating, cooling, and ventilation energy consumption. High efficiency RTUs incorporate variable speed controls to minimize fan and compressor energy while capturing and reusing heat, cold, and humidity from a building’s exhaust air.

  7. Doing Time Under the Sun: Rooftop Photovoltaics | Department...

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

    The battery storage system, enclosed behind transparent plastic, is integral to the solar panel project on Alcatraz Island. Sitting in the middle of the often-foggy San Francisco ...

  8. Ohio-Kentucky-Indiana Regional Council of Governments Go Solar Ready – Solar Map

    Broader source: Energy.gov [DOE]

    The Ohio-Kentucky-Indiana Regional Council of Governments Go Solar Ready Map provides general information about the estimated annual solar energy potential on building rooftops in the OKI region. The intention of this tool is to provide the user a general understanding of the solar energy available on rooftops in the OKI tristate region.

  9. Sensitivity of Rooftop PV Projections in the SunShot Vision Study to Market Assumptions

    SciTech Connect (OSTI)

    Drury, E.; Denholm, P.; Margolis, R.

    2013-01-01

    The SunShot Vision Study explored the potential growth of solar markets if solar prices decreased by about 75% from 2010 to 2020. The SolarDS model was used to simulate rooftop PV demand for this study, based on several PV market assumptions--future electricity rates, customer access to financing, and others--in addition to the SunShot PV price projections. This paper finds that modeled PV demand is highly sensitive to several non-price market assumptions, particularly PV financing parameters.

  10. Energy Department Recognizes Organizations for Leadership in Rooftop Unit

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

    Efficiency | Department of Energy Recognizes Organizations for Leadership in Rooftop Unit Efficiency Energy Department Recognizes Organizations for Leadership in Rooftop Unit Efficiency April 26, 2016 - 12:00pm Addthis As part of the Administration's strategy to increase energy productivity and cut energy waste in our nation's buildings, today the U.S. Department of Energy recognized six organizations for their leadership in replacing and upgrading rooftop units as part of the Better

  11. Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and...

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

    Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System ... Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated Fault Detection ...

  12. Rooftop Unit Network Project - 2013 BTO Peer Review | Department...

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

    Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Technical Meeting: Software Framework for Transactive ...

  13. High-Efficiency Rooftop Air Conditioners: Innovative Procurement...

    Office of Scientific and Technical Information (OSTI)

    Advances in Technology Citation Details In-Document Search Title: High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve Advances in Technology The U.S. ...

  14. Making Strides to Boost the Use of Solar Energy | Department...

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

    12, 2012 - 11:04am Addthis This photograph features the 6-kilowatt (kw) rooftop photovoltaic system that Mercury Solar Systems installed in the Lower Kensington neighborhood of...

  15. Tauber Solar GmbH | Open Energy Information

    Open Energy Info (EERE)

    Germany Zip: 97941 Product: Arranges planning permissions and third party finance for rooftop installations, including some over 1MW. References: Tauber-Solar GmbH1 This...

  16. NREL-Optimizing Rooftop Space with SolOpt Presentation | Open...

    Open Energy Info (EERE)

    Optimizing Rooftop Space with SolOpt Presentation Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Optimizing Rooftop Space with SolOpt AgencyCompany Organization:...

  17. Further development of a Low Cost Solar Panel. Semiannual technical progress report, September 28, 1979-March 31, 1980

    SciTech Connect (OSTI)

    Muller, T.; Erskine, D.; Short, R.; Torok, R.

    1980-04-01

    The primary objective of this phase of the Low Cost Solar Panel (LCSP) development is to fabricate, test, and gain practical operational experience on a full-scale prototype panel section, with emphasis on the unglazed configuration. The program includes design refinement, fabrication of full-scale prototypes by hand and semiautomated equipment, subscale and full-scale structural testing, outdoor performance tests, and an assessment of manufacturing requirements and production costs. The report describes the LCSP concept in more detail, the project approach and the more significant accomplishments to date.

  18. Further development of a low-cost solar panel. Final report, September 28, 1979-May 31, 1980

    SciTech Connect (OSTI)

    Muller, T.; Torok, R.; Erskine, D.; Short, R.

    1980-07-01

    The primary objective of this project was to fabricate, test, and gain practical operational experience on a full-scale prototype panel section, with emphasis on the unglazed configuration. The project included design refinement, fabrication of full-scale prototypes by hand and semiautomated equipment, subscale and full-scale structural testing, outdoor performance tests, and an assessment of manufacturing requirements and production costs. The Low Cost Solar Panel, the project approach, and the more significant accomplishments of this contract are described in detail.

  19. Solyndra | Open Energy Information

    Open Energy Info (EERE)

    area and producing more electricity per rooftop on an annual basis than a conventional panel installation. The result is significantly more solar electricity per rooftop per...

  20. Rooftop Unit Comparison Calculator User Manual

    SciTech Connect (OSTI)

    Miller, James D.

    2015-04-30

    This document serves as a user manual for the Packaged rooftop air conditioners and heat pump units comparison calculator (RTUCC) and is an aggregation of the calculator’s website documentation. Content ranges from new-user guide material like the “Quick Start” to the more technical/algorithmic descriptions of the “Methods Pages.” There is also a section listing all the context-help topics that support the features on the “Controls” page. The appendix has a discussion of the EnergyPlus runs that supported the development of the building-response models.

  1. Status of the direct absorption receiver panel research experiment: Salt flow and solar test requirements and plans

    SciTech Connect (OSTI)

    Tyner, C.E.

    1989-03-01

    The Panel Research Experiment (PRE) is the first large-scale solar test of the molten nitrate salt direct absorption receiver (DAR) concept. The purpose of the PRE is to demonstrate the engineering feasibility and practicality of the DAR. We will conduct the test at the Central Receiver Test Facility in Albuquerque in two phases: salt flow testing and solar testing. This is a working document to define PRE test objectives and requirements, document the test hardware design, and define test plans. 13 refs., 12 figs., 1 tab.

  2. You Don't Need to Raise the Roof: Cutting Solar Permitting Costs for

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

    Wooden Rooftops | Department of Energy You Don't Need to Raise the Roof: Cutting Solar Permitting Costs for Wooden Rooftops You Don't Need to Raise the Roof: Cutting Solar Permitting Costs for Wooden Rooftops June 17, 2015 - 3:42pm Addthis You Donñ€™t Need to Raise the Roof: Cutting Solar Permitting Costs for Wooden Rooftops Stephen F. Dwyer Stephen F. Dwyer PhD., Physical Engineer, Sandia National Laboratory As solar energy becomes a more affordable choice to power our lives, hardware

  3. GSA Awards Contract to Bring 3 Megawatts of Solar to Federal...

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

    The U.S. General Services Administration (GSA) awarded a contract to WGL for the construction of rooftop photovoltaic arrays that will bring approximately 3 megawatts of solar ...

  4. Large-area Silicon-Film{trademark} panels and solar cells. Final technical report, July 1995--March 1998

    SciTech Connect (OSTI)

    Rand, J.A.; Bai, Y.; Barnett, A.M.; Culik, J.S.; Ford, D.H.; Hall, R.B.; Kendall, C.L.

    1998-09-01

    This report will detail substantial improvements in each of the task areas. A number of new products were developed, including a 130 kW array built using a new panel design. Improvements in laboratory-scale solar cell processing resulted in a confirmed efficiency of 16.6%. A new Silicon-Film{trademark} production sheet machine was built which increased throughput by 70%. Three solar cell fabrication processes were converted from low throughout batch processes to high throughput, continuous, belt processes. These new processes are capable of processing sheet over 31 cm in width. Finally, a new Silicon-Film{trademark} sheet machine was built that demonstrated a sheet width of 38 cm. This tool enabled AstroPower to demonstrate a wide range of solar cell sizes, many of which have generated considerable market interest.

  5. What's on your Roof? Rooftop Unit (RTU) Efficiency Advice and...

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

    Did you know that rooftop unit (RTU) air conditioners serve cooling to 60% of U.S. commercial building floor space? Odds are high that you've worked from, shopped at, or eaten in ...

  6. Control and Diagnostics for Rooftop Units- 2014 BTO Peer Review

    Broader source: Energy.gov [DOE]

    Presenter: Jim Braun, Purdue University (The Pennsylvania State University Consortium for Building Energy Innovation) This project aims to develop and validate cost-effective methods for rooftop air conditioning unit (RTU) coordination and diagnostics in small commercial buildings.

  7. NREL Raises Rooftop Photovoltaic Technical Potential Estimate - News

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

    Releases | NREL NREL Raises Rooftop Photovoltaic Technical Potential Estimate New analysis nearly doubles previous estimates and shows U.S. building rooftops could generate close to 40 percent of national electricity sales March 24, 2016 Analysts at the Energy Department's National Renewable Energy Laboratory (NREL) have used detailed light detection and ranging (LiDAR) data for 128 cities nationwide, along with improved data analysis methods and simulation tools, to update its estimate of

  8. High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve

    Office of Scientific and Technical Information (OSTI)

    Advances in Technology (Journal Article) | SciTech Connect Journal Article: High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve Advances in Technology Citation Details In-Document Search Title: High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve Advances in Technology The U.S. Department of Energy, Defense Logistics Agency, and Pacific Northwest National Laboratory recently conducted a technology procurement to increase the availability of

  9. Optimal Solar PV Arrays Integration for Distributed Generation

    SciTech Connect (OSTI)

    Omitaomu, Olufemi A; Li, Xueping

    2012-01-01

    Solar photovoltaic (PV) systems hold great potential for distributed energy generation by installing PV panels on rooftops of residential and commercial buildings. Yet challenges arise along with the variability and non-dispatchability of the PV systems that affect the stability of the grid and the economics of the PV system. This paper investigates the integration of PV arrays for distributed generation applications by identifying a combination of buildings that will maximize solar energy output and minimize system variability. Particularly, we propose mean-variance optimization models to choose suitable rooftops for PV integration based on Markowitz mean-variance portfolio selection model. We further introduce quantity and cardinality constraints to result in a mixed integer quadratic programming problem. Case studies based on real data are presented. An efficient frontier is obtained for sample data that allows decision makers to choose a desired solar energy generation level with a comfortable variability tolerance level. Sensitivity analysis is conducted to show the tradeoffs between solar PV energy generation potential and variability.

  10. Geographic Variation in Potential of Rooftop Residential Photovoltaic Electric Power Production in the United States

    Broader source: Energy.gov [DOE]

    This paper describes a geographic evaluation of Zero Energy Home (ZEH) potential, specifically an assessment of residential roof-top solar electric photovoltaic (PV) performance around the United States and how energy produced would match up with very-efficient and super-efficient home designs. We performed annual simulations for 236 TMY2 data locations throughout the United States on two highly-efficient one-story 3-bedroom homes with a generic grid-tied solar electric 2kW PV system. These annual simulations show how potential annual solar electric power generation (kWh) and potential energy savings from PV power vary geographically around the U.S. giving the user in a specific region an indication of their expected PV system performance.

  11. DEVELOPMENT OF A HYDRONIC ROOFTOP UNIT -- HYPAK

    SciTech Connect (OSTI)

    Eric Lee; Dick Bourne; Mark Berman

    2004-03-25

    The majority of US commercial floor space is cooled by rooftop HVAC units (RTU's). RTU popularity derives chiefly from their low initial cost and relative ease of service access without disturbing building occupants. Unfortunately, current RTU's are inherently inefficient due to a combination of characteristics that unnecessarily increase cooling loads and energy use. Existing RTU's in the U.S. consume an estimated 2.4 quads annually. Inefficient RTU's create an estimated 3.5% of U.S. CO{sub 2} emissions, thus contributing significantly to global warming. Also, RTU's often fail to maintain adequate ventilation air and air filtration. This project was developed to evaluate the feasibility of a radically new ''HyPak'' RTU design that significantly and cost-effectively increases RTU performance and delivered air quality. The objective of the HyPak Project was to design, develop and test a hydronic RTU that provides a quantum improvement over conventional RTU performance. Our proposal targeted 60% and 50% reduction in electrical energy use by the HyPak RTU for dry and humid climates, respectively, when compared with a conventional unit.

  12. CTS Solar GmbH | Open Energy Information

    Open Energy Info (EERE)

    CTS Solar GmbH Jump to: navigation, search Name: CTS-Solar GmbH Place: Germany Product: Germany-based project developer provides service of installation of roof-top and...

  13. Solar Water Heating System Maintenance and Repair | Department...

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

    Water Heating System Maintenance and Repair Solar Water Heating System Maintenance and Repair May 30, 2012 - 2:35pm Addthis Rooftop solar water heaters need regular maintenance to...

  14. San Diego Solar Panels Generate Clean Electricity Along with Clean Water

    Broader source: Energy.gov [DOE]

    Thanks to San Diego's ambitious solar energy program, the Otay Water Treatment Plant may soon be able to do that with net zero electricity consumption.

  15. NREL + SolarCity: Maximizing Solar Power on Electrical Grids

    SciTech Connect (OSTI)

    Hannegan, Bryan; Hanley, Ryan; Symko-Davies, Martha

    2015-06-03

    Learn how NREL is partnering with SolarCity to study how to better integrate rooftop solar onto the grid. The work includes collaboration with the Hawaiian Electric Companies (HECO) to analyze high-penetration solar scenarios using advanced modeling and inverter testing at the Energy Systems Integration Facility (ESIF) on NREL’s campus. Results to date have been so promising that HECO has more than doubled the amount of rooftop solar it allows on its grid, showing utilities across the country that distributed solar is not a liability for reliability—and can even be an asset.

  16. DOE Awards $12 Million to Spur Rapid Adoption of Solar Energy with the

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

    Rooftop Solar Challenge | Department of Energy Million to Spur Rapid Adoption of Solar Energy with the Rooftop Solar Challenge DOE Awards $12 Million to Spur Rapid Adoption of Solar Energy with the Rooftop Solar Challenge December 1, 2011 - 3:18pm Addthis Washington, D.C. - As part of the U.S. Department of Energy's SunShot Initiative, today Energy Secretary Steven Chu was joined by Lynn Jurich, the president and co-founder of the solar power company SunRun, and Saint Paul Mayor Chris

  17. Photovoltaic array with minimally penetrating rooftop support system

    DOE Patents [OSTI]

    Lenox, Carl J.S.

    2012-10-23

    A photovoltaic array including a plurality of photovoltaic assemblies and a plurality of mounting units. The mounting units each include an elongate rail and a plurality of leg assemblies. The rail is sized and configured to maintain a portion of at least two of the photovoltaic assemblies, with the leg assemblies extending from the rail in a spaced-apart fashion and terminating in a foot for placement against a rooftop structure for minimally penetration installation. Further, at least one of the leg assemblies can include a retractable leg. When the photovoltaic array is installed to a rooftop structure including a membrane intermittently secured to a rooftop deck, the retractable leg accommodates upward billowing of the membrane under windy conditions.

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

    Open Energy Info (EERE)

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

  19. Carousel Trackers with 1-Sun or 3-Sun Modules for Commercial Building Rooftops

    SciTech Connect (OSTI)

    Gehl, Anthony C; Maxey, L Curt; Fraas, Dr. Lewis; Avery, James E.; Minkin, Leonid M; Huang, H,

    2008-01-01

    The goal is lower cost solar electricity. Herein, two evolutional steps are described toward achieving this goal. The first step is to follow the sun with a solar tracker. Herein, a carousel tracker is described for mounting on commercial building flat rooftops in order to produce more kWh per kW relative to fixed PV modules. The second evolutionary improvement is to produce lower cost 3-sun CPV modules where two thirds of the expensive single crystal silicon material is replaced by less expensive mirror material. This paper describes the performance and durability of two prototype installations demonstrating these evolutionary innovations. In the first case, the installation and operation of 2 carousels equipped with traditional flat plate modules is described. In the second case, the operation of a carousel equipped with new 3-sun CPV modules is described. Both systems have been operating as expected for several months through the winter of 2007.

  20. Real Time Selective Harmonic Minimization for Multilevel Inverters Connected to Solar Panels Using Artificial Neural Network Angle Generation

    SciTech Connect (OSTI)

    Tolbert, Leon M; Ozpineci, Burak; Filho, Faete; Cao, Yue

    2011-01-01

    This work approximates the selective harmonic elimination problem using artificial neural networks (ANNs) to generate the switching angles in an 11-level full-bridge cascade inverter powered by five varying dc input sources. Each of the five full bridges of the cascade inverter was connected to a separate 195-W solar panel. The angles were chosen such that the fundamental was kept constant and the low-order harmonics were minimized or eliminated. A nondeterministic method is used to solve the system for the angles and to obtain the data set for the ANN training. The method also provides a set of acceptable solutions in the space where solutions do not exist by analytical methods. The trained ANN is a suitable tool that brings a small generalization effect on the angles' precision and is able to perform in real time (50-/60-Hz time window).

  1. Large-area silicon-film{sup {trademark}} panels and solar cells. Phase I annual technical report, July 1, 1995--December 31, 1995

    SciTech Connect (OSTI)

    Rand, J.A.; Barnett, A.M.; Checchi, J.C.; Culik, J.S.

    1996-06-01

    AstroPower is establishing a low cost manufacturing process for Silicon-Film{trademark} solar cells and panels by taking advantage of the continuous nature of the Silicon-Film{trademark} technology. Under this effort, each step used in Silicon-Film{trademark} panel fabrication is being developed into a continuous/in-line manufacturing process. The following benefits are expected: an accelerated reduction of PV manufacturing cost for installed systems; a foundation for significantly increased production capacity; and a reduction in handling and waste streams. The process development will be based on a new 31-cm wide continuous Silicon-Film{trademark} sheet. Long-term goals include the development of a 24W, 30 cm x 60 cm Silicon-Film{trademark} solar cell and a manufacturing capability for a 384W, 4 inches x 8 inches Silicon-Film{trademark} panel for deployment in utility-scale applications.

  2. SolarBridge Technologies: Helping Solar Modules Speak the Language of the Energy Grid

    Broader source: Energy.gov [DOE]

    SolarBridge Technologies is collaborating with the University of Illinois at Urbana-Champaign to develop an innovative solution to make rooftop photovoltaic (PV) systems easier to install and more...

  3. 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. Teledyne’s liquid prism panel has no bulky and heavy supporting parts—instead 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.

  4. SBM Solar | Open Energy Information

    Open Energy Info (EERE)

    search Name: SBM Solar Place: North Carolina Sector: Solar Product: SBM Solar is a solar panel manufacturer based in North Carolina. References: SBM Solar1 This article is...

  5. Absorptivity of semiconductors used in the production of solar cell panels

    SciTech Connect (OSTI)

    Kosyachenko, L. A. Grushko, E. V.; Mikityuk, T. I.

    2012-04-15

    The dependence of the absorptivity of semiconductors on the thickness of the absorbing layer is studied for crystalline silicon (c-Si), amorphous silicon (a-Si), cadmium telluride (CdTe), copper indium diselenide (CuInSe{sub 2}, CIS), and copper gallium diselenide (CuGaSe{sub 2}, CGS). The calculations are performed with consideration for the spectral distribution of AM1.5 standard solar radiation and the absorption coefficients of the materials. It is shown that, in the region of wavelengths {lambda} = {lambda}{sub g} = hc/E{sub g}, almost total absorption of the photons in AM1.5 solar radiation is attained in c-Si at the thickness d = 7-8 mm, in a-Si at d = 30-60 {mu}m, in CdTe at d = 20-30 {mu}m, and in CIS and CGS at d = 3-4 {mu}m. The results differ from previously reported data for these materials (especially for c-Si). In previous publications, the thickness needed for the semiconductor to absorb solar radiation completely was identified with the effective light penetration depth at a certain wavelength in the region of fundamental absorption for the semiconductor.

  6. Panel results of the solar thermal program research requirement assessment review. Final report

    SciTech Connect (OSTI)

    1983-11-01

    The objectives of the assessment were to identify: research needs by topic and activity, relative priority of research needs, options for performing needed research, potential performers, costs and duration of R and D activities, gaps and duplications within the R and D program, and activities underway that appear to be of low priority. To achieve these objectives, research programs of the Division of Solar Thermal Technologies within the Office of Renewable Energy and Conservation and the Materials and Advanced Energy Programs of the Office of Basic Energy Sciences were reviewed. Several recent assessments of solar thermal research needs made within the past two years by various groups were also reviewed, and the key research issues and needs were extracted. The primary results from the assessment are a set of prioritized activities to meet the most important research needs for solar thermal technologies. These activities belong to four disciplines: materials science, thermal science, thermochemistry, and engineering. Further, priorities associated with the needs for research result from the various activities allow the recommended activities to be grouped into two categories; a core group which should be at the heart of any future program developed by the department, and a set of important needs that should, at least, find their way into a program at some time during its existence. The recommended research program is outlined, and the complete set of ranked research needs is listed.

  7. 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.

  8. Nationwide: Slashing Red Tape To Speed Solar Deployment for Homes and Businesses

    Broader source: Energy.gov [DOE]

    Rooftop Solar Challenge helped cut permitting time by 40 percent and reduce fees by over 10 percent, opening the door to make it faster and easier for more than 47 million Americans to install solar.

  9. Solar access of residential rooftops in four California cities...

    Office of Scientific and Technical Information (OSTI)

    of surface height were used to create a digital elevation model of all trees and ... (the flat elements of roofs) was computed geometrically from the digital elevation model. ...

  10. Project Profile: Deployable Commercial Rooftop Solar Electric System

    Broader source: Energy.gov [DOE]

    Individual PV modules are mechanically interconnected using flexible hinges that allow a string of modules to be folded for transportation and storage into a compact form and then unfolded for...

  11. Lease Option Increases Rooftop Solar's Appeal, Study Says - News Releases |

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

    Condensate Production (Million Barrels) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2009 2010 2011 2012 2013 2014 View History U.S. 178 224 231 274 311 326 1979-2014 Alabama 2 2 2 2 2 1 1979-2014 Alaska 0 0 20 20 16 0 1979-2014 Arkansas 0 0 0 0 0 0 1979-2014 California 0 0 0 0 0 1 1979-2014 Coastal Region Onshore 0 0 0 0 0 0 1979-2014 Los Angeles Basin Onshore 0 0 0 0 0 0 1979-2014 San Joaquin Basin Onshore 0 0

  12. Episode 1: Tackling the Hidden Costs of Rooftop Solar | Department...

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

    ... Well, I thought those were great, and frankly, we can just let the public be the judge. LANTERO: How about you keep brainstorming. WOOD: I understand. I'll get back to the drawing ...

  13. Planning and Implementing a Solarize Initiative: A Guide for State Program Managers

    Broader source: Energy.gov [DOE]

    Solarize is a PV group purchasing program that aims to lower acquisition costs for rooftop solar installations. This Solarize guide features detailed case studies of two particularly well-developed and successful Solarize programs from New England— Solarize Connecticut and Solarize Mass —to help program managers in states across the country develop Solarize programs.

  14. Concentrating Solar Power ñ€“ Central Receiver Panel Component Fabrication and Testing FINAL REPORT

    SciTech Connect (OSTI)

    McDowell, Michael W; Miner, Kris

    2013-03-30

    The objective of this project is to complete a design of an advanced concentrated solar panel and demonstrate the manufacturability of key components. Then confirm the operation of the key components under prototypic solar flux conditions. This work is an important step in reducing the levelized cost of energy (LCOE) from a central receiver solar power plant. The key technical risk to building larger power towers is building the larger receiver systems. Therefore, this proposed technology project includes the design of an advanced molten salt prototypic sub-scale receiver panel that can be utilized into a large receiver system. Then complete the fabrication and testing of key components of the receive design that will be used to validate the design. This project shall have a significant impact on solar thermal power plant design. Receiver panels of suitable size for utility scale plants are a key element to a solar power tower plant. Many subtle and complex manufacturing processes are involved in producing a reliable, robust receiver panel. Given the substantial size difference between receiver panels manufactured in the past and those needed for large plant designs, the manufacture and demonstration on prototype receiver panel components with representative features of a full-sized panel will be important to improving the build process for commercial success. Given the thermal flux limitations of the test facility, the panel components cannot be rendered full size. Significance changes occurred in the projects technical strategies from project initiation to the accomplishments described herein. The initial strategy was to define cost improvements for the receiver, design and build a scale prototype receiver and test, on sun, with a molten salt heat transport system. DOE had committed to constructing a molten salt heat transport loop to support receiver testing at the top of the NSTTF tower. Because of funding constraints this did not happen. A subsequent plan to test scale prototype receiver, off sun but at temperature, at a molten salt loop at ground level adjacent to the tower also had to be abandoned. Thus, no test facility existed for a molten salt receiver test. As a result, PWR completed the prototype receiver design and then fabricated key components for testing instead of fabricating the complete prototype receiver. A number of innovative design ideas have been developed. Key features of the receiver panel have been identified. This evaluation includes input from Solar 2, personal experience of people working on these programs and meetings with Sandia. Key components of the receiver design and key processes used to fabricate a receiver have been selected for further evaluation. The Test Plan, Concentrated Solar Power Receiver In Cooperation with the Department of Energy and Sandia National Laboratory was written to define the scope of the testing to be completed as well as to provide details related to the hardware, instrumentation, and data acquisition. The document contains a list of test objectives, a test matrix, and an associated test box showing the operating points to be tested. Test Objectives: 1. Demonstrate low-cost manufacturability 2. Demonstrate robustness of two different tube base materials 3. Collect temperature data during on sun operation 4. Demonstrate long term repeated daily operation of heat shields 5. Complete pinhole tube weld repairs 6. Anchor thermal models This report discusses the tests performed, the results, and implications for design improvements and LCOE reduction.

  15. Plug and Play: Purchase, Install, and Connect Residential Solar...

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

    Photo Credit: Fraunhofer CSE Consumers may soon have the option of purchasing a do-it-yourself rooftop solar photovoltaic (PV) system at their local home improvement store that can ...

  16. Rooftop unit embedded diagnostics: Automated fault detection and diagnostics (AFDD) development, field testing and validation

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Kim, Woohyun; Lutes, Robert G.; Underhill, Ronald M.

    2015-09-30

    This report documents the development, testing and field validation of the integrated AFDD and advanced rooftop unit (RTU) controls using a single controller in buildings.

  17. What is the #1 Way to Save Money on Your Rooftop Unit? Fix it BEFORE it

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

    Breaks | Department of Energy What is the #1 Way to Save Money on Your Rooftop Unit? Fix it BEFORE it Breaks What is the #1 Way to Save Money on Your Rooftop Unit? Fix it BEFORE it Breaks February 16, 2016 - 4:50pm Addthis What is the #1 Way to Save Money on Your Rooftop Unit? Fix it BEFORE it Breaks What are the key facts? Rooftop units over 15 years old can waste substantial energy and money, while providing less-than-quality service. The Advanced RTU Campaign published a business case for

  18. What's on your Roof? Rooftop Unit (RTU) Efficiency Advice and Guidance

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

    from the Advanced RTU Campaign | Department of Energy What's on your Roof? Rooftop Unit (RTU) Efficiency Advice and Guidance from the Advanced RTU Campaign What's on your Roof? Rooftop Unit (RTU) Efficiency Advice and Guidance from the Advanced RTU Campaign November 10, 2015 - 11:40am Addthis Whatñ€™s on your Roof? Rooftop Unit (RTU) Efficiency Advice and Guidance from the Advanced RTU Campaign By Marta Schantz This is the first in a series of upcoming blogs on DOE's Advanced Rooftop Unit

  19. Solar PST | Open Energy Information

    Open Energy Info (EERE)

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

  20. Immodo Solar | Open Energy Information

    Open Energy Info (EERE)

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

  1. SBY Solutions | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: SBY Solutions Place: Israel Zip: 42836 Sector: Solar Product: Solar panel installer, mainly focusing on rooftops. References: SBY...

  2. AWSL The Remington Group JV | Open Energy Information

    Open Energy Info (EERE)

    JV Jump to: navigation, search Name: AWSL & The Remington Group JV Place: Ontario, Canada Sector: Solar Product: Canada-based JV to install rooftop solar panels. References:...

  3. Solar Oven, Take One: FAIL | Department of Energy

    Energy Savers [EERE]

    Industry Scorches Records Solar Industry Scorches Records March 6, 2014 - 5:24pm Addthis Workers install a solar energy system on the rooftop of a home in Golden, Colorado. More than 4,751 megawatts of solar power was installed in the United States last year, an increase of 41%. | Photo by Dennis Schroeder, National Renewable Energy Laboratory Workers install a solar energy system on the rooftop of a home in Golden, Colorado. More than 4,751 megawatts of solar power was installed in the United

  4. Solar Energy for All: How-To Guides Encourage Growth of Solar Communities |

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

    Department of Energy Energy for All: How-To Guides Encourage Growth of Solar Communities Solar Energy for All: How-To Guides Encourage Growth of Solar Communities August 21, 2012 - 10:58am Addthis An overview of the concept behind The Solarize Guidebook, which offers neighborhoods a plan for getting volume discounts when making group purchases of rooftop solar energy systems. Rachel Tronstein Deputy Program Manager, SunShot Initiative What is Community Shared Solar? Residents join together

  5. Plug and Play: Purchase, Install, and Connect Residential Solar Power in Hours

    Broader source: Energy.gov [DOE]

    Consumers may soon have the option of purchasing a do-it-yourself rooftop solar photovoltaic (PV) system at their local home improvement store that can be installed and connected to the grid in...

  6. Final Report - Efficient Solar Market Partners of Northern California

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

    Successes | Department of Energy Efficient Solar Market Partners of Northern California Successes Final Report - Efficient Solar Market Partners of Northern California Successes Awardee: SolarTech Location: San Jose, CA Subprogram: Soft Costs Funding Program: Rooftop Solar Challenge 1 The SolarTech Efficient Solar Market Partners of Northern CaliforniaRSC 1 program and team comprised of Solar Sonoma County, East Bay Green Corridor, Clean Coalition and the City and County of San Francisco

  7. Would-Be Solar Electric Homeowners Sought For Project

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

    Would-Be Solar Electric Homeowners Sought For Project For more information contact: Kerry Masson, 275-4083 Golden, Colo., Oct. 2, 1996 -- The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) and the Colorado Office of Energy Conservation are seeking homeowners interested in becoming part of a market assessment project to evaluate the potential market for rooftop photovoltaic power systems connected to local utility grids. A grid-tied rooftop photovoltaic system

  8. Advanced Rooftop Control (ARC) Retrofit: Field-Test Results

    SciTech Connect (OSTI)

    Wang, Weimin; Katipamula, Srinivas; Ngo, Hung; Underhill, Ronald M.; Taasevigen, Danny J.; Lutes, Robert G.

    2013-07-31

    The multi-year research study was initiated to find solutions to improve packaged equipment operating efficiency in the field. Pacific Northwest National Laboratory (PNNL), with funding from the U.S. Department of Energy’s (DOE’s) Building Technologies Office (BTO) and Bonneville Power Administration (BPA) conducted this research, development and demonstration (RD&D) study. Packaged equipment with constant speed supply fans is designed to provide ventilation at the design rate at all times when the fan is operating as required by building code. Although there are a number of hours during the day when a building may not be fully occupied or the need for ventilation is lower than designed, the ventilation rate cannot be adjusted easily with a constant speed fan. Therefore, modulating the supply fan in conjunction with demand controlled ventilation (DCV) will not only reduce the coil energy but also reduce the fan energy. The objective of this multi-year research, development and demonstration project was to determine the magnitude of energy savings achievable by retrofitting existing packaged rooftop air conditioners with advanced control strategies not ordinarily used for packaged units. First, through detailed simulation analysis, it was shown that significant energy (between 24% and 35%) and cost savings (38%) from fan, cooling and heating energy consumption could be realized when packaged air conditioning units with gas furnaces are retrofitted with advanced control packages (combining multi-speed fan control, integrated economizer controls and DCV). The simulation analysis also showed significant savings for heat pumps (between 20% and 60%). The simulation analysis was followed by an extensive field test of a retrofittable advanced rooftop unit (RTU) controller.

  9. High Penetration Solar Distributed Generation Study on Oahu | Department of

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

    Energy High Penetration Solar Distributed Generation Study on Oahu High Penetration Solar Distributed Generation Study on Oahu The rooftop solar PV on Hawai'i's Mauna Lani Bay Hotel generates 75 kW of electricity. <em>Photo from SunPower, NREL 06430</em> The rooftop solar PV on Hawai'i's Mauna Lani Bay Hotel generates 75 kW of electricity. Photo from SunPower, NREL 06430 To complement energy efficiency targets in Hawai'i, the state developed requirements for generating 40% of its

  10. Building-Integrated Photovoltaics (BIPV) in the Residential Section: An Analysis of Installed Rooftop Prices (Presentation)

    SciTech Connect (OSTI)

    James, T.; Goodrich, A.; Woodhouse, M.; Margolis, R.; Ong, S.

    2012-06-01

    This powerpoint presentation to be presented at the World Renewable Energy Forum on May 17, 2012, in Denver, CO, discusses building-integrated photovoltaics (BIPV) in the residential section and includes an analysis of installed rooftop prices.

  11. EERE Success Story-SolarBridge Technologies: Helping Solar Modules Speak

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

    the Language of the Energy Grid | Department of Energy SolarBridge Technologies: Helping Solar Modules Speak the Language of the Energy Grid EERE Success Story-SolarBridge Technologies: Helping Solar Modules Speak the Language of the Energy Grid June 5, 2015 - 4:20pm Addthis SolarBridge Technologies is collaborating with the University of Illinois at Urbana-Champaign to develop an innovative solution to make rooftop photovoltaic (PV) systems easier to install and more affordable for

  12. Retrofitting Inefficient Rooftop Air-Conditioning Units Reduces U.S. Navy Energy Use (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

    As part of the U.S. Navy's overall energy strategy, the National Renewable Energy Laboratory (NREL) partnered with the Naval Facilities Engineering Command (NAVFAC) to demonstrate market-ready energy efficiency measures, renewable energy generation, and energy systems integration. One such technology - retrofitting rooftop air-conditioning units with an advanced rooftop control system - was identified as a promising source for reducing energy use and costs, and can contribute to increasing energy security.

  13. Skypoint Solar Inc | Open Energy Information

    Open Energy Info (EERE)

    Name: Skypoint Solar Inc. Place: Vermont Zip: 5255 Sector: Solar Product: Vermont based solar panel manufacturing company that will also be involved in the establishment of solar...

  14. Sereno Solar | Open Energy Information

    Open Energy Info (EERE)

    Name: Sereno Solar Place: Monte Sereno, California Sector: Solar Product: Has developed a solar passive water heating panel to be installed under current roofing or siding...

  15. Phototaxis Solar | Open Energy Information

    Open Energy Info (EERE)

    Cambridge, Massachusetts Sector: Solar Product: Solar start-up planning to construct solar-panel covered roofs over parking lots. Coordinates: 43.003745, -89.017499 Show...

  16. Solar Means Business: Top U.S. Corporate Solar Users

    Broader source: Energy.gov [DOE]

    Solar energy makes financial sense. That's why business leaders in America's brightest, most competitive companies are increasingly choosing to install solar energy systems at their facilities. For the third year in a row, not only are more businesses choosing solar, but those that have used solar in the past are doing so again and again on rooftops across America. Walmart, Kohl's, Costco, Apple, IKEA, and more have all embraced solar energy. Collectively, the 25 companies with the most solar capacity in the U.S. now have 1,110 systems totaling 569 MW, generating enough electricity to power more than 115,000 homes. And these companies are installing even more.

  17. SunShot Rooftop Challenge Awardees | Department of Energy

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

    CONNECT (Congress of Neighboring Communities), and Solar Unified Network of Western ... The team also aims to implement a formal best practice solar zoning policy and develop ...

  18. Solar Magic | Open Energy Information

    Open Energy Info (EERE)

    Clara, California. SolarMagic delivers the SolarMagic Power Optimizer, which allows the solar panels in a given array to achieve maximum power regardless of whether other panels...

  19. Development of a Hydronic Rooftop Unit-HyPak-MA

    SciTech Connect (OSTI)

    Eric Lee; Mark Berman

    2009-11-14

    The majority of U.S. commercial floor space is cooled by rooftop HVAC units (RTUs). RTU popularity derives chiefly from their low initial cost and relative ease of service access without disturbing building occupants. Unfortunately, current RTUs are inherently inefficient due to a combination of characteristics that unnecessarily increase cooling loads and energy use. 36% percent of annual U.S. energy, and two-thirds of electricity, is consumed in and by buildings. Commercial buildings consume approximately 4.2 quads of energy each year at a cost of $230 billion per year, with HVAC equipment consuming 1.2 quads of electricity. More than half of all U.S. commercial floor space is cooled by packaged HVAC units, most of which are rooftop units (RTUs). Inefficient RTUs create an estimated 3.5% of U.S. CO{sub 2} emissions, thus contributing significantly to global warming5. Also, RTUs often fail to maintain adequate ventilation air and air filtration, reducing indoor air quality. This is the second HyPak project to be supported by DOE through NETL. The prior project, referred to as HyPak-1 in this report, had two rounds of prototype fabrication and testing as well as computer modeling and market research. The HyPak-1 prototypes demonstrated the high performance capabilities of the HyPak concept, but made it clear that further development was required to reduce heat exchanger cost and improve system reliability before HyPak commercialization can commence. The HyPak-1 prototypes were limited to about 25% ventilation air fraction, limiting performance and marketability. The current project is intended to develop a 'mixed-air' product that is capable of full 0-100% modulation in ventilation air fraction, hence it was referred to as HyPak-MA in the proposal. (For simplicity, the -MA has been dropped when referencing the current project.) The objective of the HyPak Project is to design, develop and test a hydronic RTU that provides a quantum improvement over conventional RTU performance. Our proposal targeted 60% and 50% reduction in electrical energy use by the HyPak RTU for dry and humid climates, respectively, when compared with a conventional unit, and reduction in peak energy consumption of 50% and 33% respectively. In addition to performance targets, our goal is to develop a production-ready design with durability, reliability and maintainability similar to air-cooled packaged equipment, and that can be commercialized immediately following the conclusion of this project.

  20. Large-area Silicon-Film{trademark} panels and solar cells. Phase 2 technical report, January 1996--December 1996

    SciTech Connect (OSTI)

    Rand, J.A.; Barnett, A.M.; Checchi, J.C.; Culik, J.S.; Collins, S.R.; Ford, D.H.; Hall, R.B.; Jackson, E.L.; Kendall, C.L.

    1997-03-01

    The Silicon-Film{trademark} process is on an accelerated path to large-scale manufacturing. A key element in that development is optimizing the specific geometry of both the Silicon-Film{trademark} sheet and the resulting solar cell. That decision has been influenced by cost factors, engineering concerns, and marketing issues. The geometry investigation has focused first on sheet nominally 15 cm wide. This sheet generated solar cells with areas of 240 cm{sup 2} and 675 cm{sup 2}. Most recently, a new sheet fabrication machine was constructed that produces Silicon-Film{trademark} with a width in excess of 30 cm. Test results have indicated that there is no limit to the width of sheet generated by this process. The new wide material has led to prototype solar cells with areas of 300, 400, and 1,800 cm{sup 2}. Significant advances in solar-cell processing have been developed in support of fabricating large-area devices, including uniform emitter diffusion and anti-reflection coatings.

  1. Energy Department Launches SunShot Prize Competition to Install Solar Energy Systems at a Fraction of Today’s Price

    Broader source: Energy.gov [DOE]

    As part of the SunShot Initiative, the Energy Department announced the start of a new competition to make it faster, easier, and cheaper to install rooftop solar energy systems

  2. PROJECT PROFILE: Ecolibrium3 (Solar Market Pathways) | Department of Energy

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

    Ecolibrium3 (Solar Market Pathways) PROJECT PROFILE: Ecolibrium3 (Solar Market Pathways) Title: Local Energy Matters: Solar Market Development in Duluth, MN Ecolibrium3.png Funding Opportunity: Solar Market Pathways SunShot Subprogram: Soft Costs Location: Duluth, MN Amount Awarded: $209,005 Awardee Cost Share: $52,266 Ecolibrium3's "Local Energy Matters" Solar Market Pathways project is working with state and local stakeholders to further develop residential rooftop, community, and

  3. Highlighting Hydrogen: Hawaii's Success with Fuel Cell Electric...

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

    fueling station and a covered 175-stall parking structure with roof-top solar panels. ... affordable, renewable hydrogen that benefits the environment and the community is ...

  4. U.S. Energy Information Administration (EIA) - Pub

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    by 26% over the period. More use of distributed generation, such as from rooftop solar panels, would further reduce delivered energy intensity, but it is not projected to...

  5. Integrated shipping and installation racking

    DOE Patents [OSTI]

    Johnson, Jr., Richard L; Russell, Richard J; Turk, Michael F

    2015-03-17

    The present invention relates to an adjustable racking system for transporting and mounting one or more solar panels to, for example, a rooftop.

  6. Solar Applications to Multiple County Buildings Feasibility Study

    Broader source: Energy.gov [DOE]

    This study was requested by Salt Lake County in an effort to obtain a cursory overview of solar electric and solar thermal application possibilities on the rooftops of existing county buildings. The subject buildings represent various County Divisions: Aging Services, Community Services, County Health, County Library, Parks & Recreation, Public Works, County Sheriff and Youth Services. There are fifty two buildings included in the study.

  7. Oklahoma Tribe to Install Solar Roof

    Broader source: Energy.gov [DOE]

    An Indian tribe in Anadarko, Oklahoma is installing solar panel roofs on two tribal government buildings.

  8. Integration of Rooftop Photovoltaic Systems in St. Paul Ford Site's Redevelopment Plans

    SciTech Connect (OSTI)

    Olis, D.; Mosey, G.

    2015-03-01

    The purpose of this analysis is to estimate how much electricity the redeveloped Ford Motor Company assembly plant site in St. Paul, Minnesota, might consume under different development scenarios and how much rooftop photovoltaic (PV) generation might be possible at the site. Because the current development scenarios are high-level, preliminary sketches that describe mixes of residential, retail, commercial, and industrial spaces, electricity consumption and available rooftop area for PV under each scenario can only be grossly estimated. These results are only indicative and should be used for estimating purposes only and to help inform development goals and requirements moving forward.

  9. Innovative Ballasted Flat Roof Solar PV Racking System

    SciTech Connect (OSTI)

    Peek, Richard T.

    2015-01-23

    The objective of this project was to reduce the cost of racking for PV solar on flat commercial rooftops. Cost reductions would come from both labor savings and material savings related to the installation process. The rack would need to accommodate the majority of modules available on the market. Cascade Engineering has a long history of converting traditional metal type applications over to plastic. Injection molding of plastics have numerous advantages including selection of resin for the application, placing the material exactly where it is needed, designing in features that will speed up the installation process, and weight reduction of the array. A plastic rack would need to meet the requirements of UL2703, Mounting systems, mounting devices, clamping/retention devices, and ground lugs for use with flat-plate photovoltaic modules and panels. Comparing original data to the end of project racking design, racking material costs were reduced 50% and labor costs reduced 64%. The racking product accommodates all 60 and 72 cell panels on the market, meets UL2703 requirements, contributes only 1.3 pounds per square foot of weight to the array, requires little ballast to secure the array, automatically grounds the module when the module is secured, stacks/nests well for shipping/fewer lifts to the roof, provides integrated wire routing, allows water to drain on the roof, and accommodates various seismic roof connections. Project goals were achieved as noted in the original funding application.

  10. SunShot Rooftop Challenge Awardees | Department of Energy

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

    enable multiple financing options for community solar programs. City University of New York City University of New York, NYC Department of Buildings, Procemx, CUNY Ventures, IBM,...

  11. Solar Hot Water Heater Industry in Barbados | Department of Energy

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

    Solar Hot Water Heater Industry in Barbados Solar Hot Water Heater Industry in Barbados Rooftop SWHs are being successfully used in Barbados as a result of effective financial incentives and government support. <em>Photo from iStock 6923507</em> Rooftop SWHs are being successfully used in Barbados as a result of effective financial incentives and government support. Photo from iStock 6923507 Barbados is addressing the challenge of offsetting high fossil fuel costs by using its

  12. Environmental Solar Systems | Open Energy Information

    Open Energy Info (EERE)

    Environmental Solar Systems Address: 117 West Street Place: Methuen, Massachusetts Zip: 01844 Region: Greater Boston Area Sector: Solar Product: Solar thermal panels for home...

  13. Solstice Solar Systems LLC | Open Energy Information

    Open Energy Info (EERE)

    California Zip: 95008-6906 Sector: Solar Product: US-based manufacturer of PV inverters and wires to connect solar panels. References: Solstice Solar Systems LLC1 This...

  14. American Way Solar AWS | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: American Way Solar (AWS) Place: Plzen, Czech Republic Sector: Solar Product: Czech subsidiary of US PV panel manufacturer, American Way Solar (AWS)....

  15. Interconnection Panel

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation—given at at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—discusses the interconnection panel, including an overview of the generation interconnection process (GIP), and interconnection agreements and their terms.

  16. Advisory Panels

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

    Advisory Panels Print ALS Advisory Panels Many people are involved in developing and expanding the scientific and user programs at the ALS. Members of the committees listed below are either appointed or elected by the user community and/or by ALS or Berkeley Lab management to provide a wide base of communication on issues concerning all aspects of ALS operations and development. Additional information about the role and responsibilities of each group, its membership, and contact information is

  17. Advisory Panels

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

    Advisory Panels Print ALS Advisory Panels Many people are involved in developing and expanding the scientific and user programs at the ALS. Members of the committees listed below are either appointed or elected by the user community and/or by ALS or Berkeley Lab management to provide a wide base of communication on issues concerning all aspects of ALS operations and development. Additional information about the role and responsibilities of each group, its membership, and contact information is

  18. Evolution Solar | Open Energy Information

    Open Energy Info (EERE)

    Product: British Virgin Islands-based solar energy company dedicated to establishing solar panel factories in the Middle East and Africa using both Crystalline Silicon and...

  19. CCT Solar | Open Energy Information

    Open Energy Info (EERE)

    CCT Solar Jump to: navigation, search Name: CCT Solar Place: Ede, Netherlands Zip: 6711 Product: Netherlands-based division of CCT Europe and PV panel and junction box...

  20. HSC Solar | Open Energy Information

    Open Energy Info (EERE)

    for homes is continuing to drop significantly making this the ideal time to consider solar panel installation. Every household using electricity will see benefit with a solar...

  1. Lighthouse Solar | Open Energy Information

    Open Energy Info (EERE)

    Frontier Place: Boulder, Colorado Zip: 80301 Region: Rockies Area Sector: Solar Product: Solar Panel Installers Number of Employees: 51-200 Year Founded: 2006 Phone Number:...

  2. Reflective Optics CPV Panels Enabling Large Scale, Reliable Generation of Solar Energy Cost Competitive with Fossil Fuels: 15 November 2007 - 30 June 2009

    SciTech Connect (OSTI)

    Horne, S.; McDonald, M.; Hartsoch, N.; Desy, K.

    2009-12-01

    SolFocus developed a CPV panel with conversion efficiency >22% and manufacturing run-rate capacity far exceeding 3 MW.

  3. Solar

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... comprehensively recording solar irradiance data to accompany its outdoor PV testing. ...

  4. From Silver to Copper: SunShot Awardee TetraSun’s Technology to be Mass Produced

    Broader source: Energy.gov [DOE]

    Consumers will soon have new options in their quest for the most efficient rooftop solar panels, thanks in part to former SunShot awardee TetraSun. Solar industry leader First Solar, which operates...

  5. Department of Energy Announces $188 Million for Small Business...

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

    energy systems-such as roof-top solar panels, a plug-in electric vehicle, and demand response devices in the home. (DOE award: 999,655) Advanced Solar Technologies - Solar ...

  6. Design, Installation, and Field Verification of Integrated Active Desiccant Hybrid Rooftop Systems Combined with a Natural Gas Driven Cogeneration Package, 2008

    Broader source: Energy.gov [DOE]

    Report summary of a research/demonstration project involving a custom 230 kW cogeneration package with four integrated active desiccant rooftop (IADR) systems

  7. Empirically Derived Strength of Residential Roof Structures for Solar Installations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.; Sanchez, Alfred; Campos, Ivan A.; Gerstle, Walter H.

    2014-12-01

    Engineering certification for the installation of solar photovoltaic (PV) modules on wood roofs is often denied because existing wood roofs do not meet structural design codes. This work is intended to show that many roofs are actually sufficiently strong given the conservatism in codes, documented allowable strengths, roof structure system effects, and beam composite action produced by joist-sheathing interaction. This report provides results from a testing program to provide actual load carrying capacity of residential rooftops. The results reveal that the actual load carrying capacity of structural members and systems tested are significantly stronger than allowable loads provided by the International Residential Code (IRC 2009) and the national structural code found in Minimum Design Loads for Buildings and Other Structures (ASCE 7-10). Engineering analysis of residential rooftops typically ignores the system affects and beam composite action in determining rooftop stresses given a potential PV installation. This extreme conservatism combined with conservatism in codes and published allowable stress values for roof building materials (NDS 2012) lead to the perception that well built homes may not have adequate load bearing capacity to enable a rooftop PV installation. However, based on the test results presented in this report of residential rooftop structural systems, the actual load bearing capacity is several times higher than published values (NDS 2012).

  8. SolarPro Energy International | Open Energy Information

    Open Energy Info (EERE)

    Place: Granite Bay, California Zip: 95746 Sector: Solar Product: SolarPro Energy installs solar power systems using PV panels for residential and commercial properties. References:...

  9. Solar/Wind Contractor Licensing | Open Energy Information

    Open Energy Info (EERE)

    Licensing Louisiana InstallerContractor Photovoltaics Solar Water Heat Yes Tennessee Solar Panel Installation Specialty and Solar Thermal-Geothermal Licensing (Tennessee)...

  10. List of Solar Water Heat Incentives | Open Energy Information

    Open Energy Info (EERE)

    Photovoltaics Solar Water Heat Ground Source Heat Pumps Yes City and County of Denver - Solar Panel Permitting (Colorado) SolarWind Permitting Standards Colorado Commercial...

  11. SSC HHV Solar Technologies JV | Open Energy Information

    Open Energy Info (EERE)

    Technologies JV Place: Ontario, Canada Sector: Solar Product: Canada-based thin film solar panel manufacturing facility. References: SSC & HHV Solar Technologies JV1 This...

  12. Shenzhen Prosunpro PengSangPu Solar Industrial Products Corporation...

    Open Energy Info (EERE)

    China Zip: 518055 Sector: Solar Product: Shenzhen Prosunpro makes and installs flat panel solar passive energy collectors and engineers central solar hot water systems....

  13. Testing at NREL Aids Solar Power in Hawaii - News Releases | NREL

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

    Testing at NREL Aids Solar Power in Hawaii Utility poised to double solar rooftop capacity based on tests of inverter reliability February 12, 2015 Inverter load rejection overvoltage (LRO) tests completed by the Energy Department's National Renewable Energy Laboratory as part of a cooperative research agreement with SolarCity have proven so successful that a testing partner, Hawaiian Electric Companies (HECO), has proposed to double its hosting capacity for solar energy. The inverter testing at

  14. Solar PV Incentive Programs

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

    Development Authority Solar PV Incentive Programs Presentation at NREL Webinar on ... 14 Research & Development: - New & Improved PV Panels - Reduced Costs of Balance of System ...

  15. Interias Solar Energy | Open Energy Information

    Open Energy Info (EERE)

    2 Here at Interias we work to provide homeowners, just like yourself , solar panels and solar panel installation which are as high quality as you'll find anywhere while also...

  16. Solar PV and Glare Factsheet

    Broader source: Energy.gov [DOE]

    A common misconception about solar photovoltaic (PV) panels is that they inherently cause or create "too much" glare, posing a nuisance to neighbors and a safety risk for pilots. While solar PV systems can produce glare, light absorption - rather than reflection - is central to the function of solar PV panels. This fact sheet describes the basic issues surrounding glare from solar PV panels, the new Federal Aviation Administration guidance, and the implications for local governments.

  17. Denmark Solar Industry DSI | Open Energy Information

    Open Energy Info (EERE)

    Copenhagen, Denmark Zip: DK-1550 Sector: Solar Product: Manufactures and distributes solar panels and systems. Coordinates: 55.67631, 12.569355 Show Map Loading map......

  18. With growing numbers of solar energy...

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

    Pending SOLAR GLARE HAZARD ANALYSIS TOOL (SGHAT) TECHNOLOGY SUMMARY Figure 1. Glare from solar panels viewed from an air traffic control tower. Figure 2. Screen image of glare...

  19. REC Solar (Colorado) | Open Energy Information

    Open Energy Info (EERE)

    Court Place: Westminster, Colorado Zip: 80030 Region: Rockies Area Sector: Solar Product: Solar panel installer Website: recsolar.com Coordinates: 39.860526, -105.066446 Show...

  20. REC Solar (Oregon) | Open Energy Information

    Open Energy Info (EERE)

    Place: Portland, Oregon Zip: 97214 Region: Pacific Northwest Area Sector: Solar Product: Solar panel installer Website: recsolar.com Coordinates: 45.5136593, -122.657084 Show...

  1. Texas school district enlightens students with solar

    Broader source: Energy.gov [DOE]

    Sam Rayburn High School in Pasadena, Texas is installing solar panels which will be used incorporated into the school's curriculum.

  2. PROJECT PROFILE: Aurora Solar Inc. (Incubator 10) | Department of Energy

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

    Aurora Solar Inc. (Incubator 10) PROJECT PROFILE: Aurora Solar Inc. (Incubator 10) Project Title: Using Computer Vision for Automated Rooftop Modeling and Shading Analysis Funding Opportunity: SunShot Technology to Market (Incubator 10) SunShot Subprogram: Technology to Market Location: Palo Alto, CA Amount Awarded: $400,000 Awardee Cost Share: $100,000 Project Investigator: Chris Hopper As part of the Department of Energy's SunShot Incubator program, Aurora will be developing a web-based

  3. Development of a High Latent Effectiveness Energy Recovery Ventilator with Integration into Rooftop Package Equipment

    SciTech Connect (OSTI)

    Gregory M. Dobbs; Norberto O. Lemcoff; Frederick J. Cogswell; Jeffrey T. Benolt

    2006-03-01

    This Final Report covers the Cooperative Program carried out to design and optimize an enhanced flat-plate energy recovery ventilator and integrate it into a packaged unitary (rooftop) air conditioning unit. The project objective was to optimize the design of a flat plate energy recovery ventilator (ERV) core that compares favorably to flat plate air-to-air heat exchanger cores on the market and to cost wise to small enthalpy wheel devices. The benefits of an integrated unit incorporating an enhanced ERV core and a downsized heating/cooling unit were characterized and the design of an integrated unit considering performance and cost was optimized. Phase I was to develop and optimize the design of a membrane based heat exchanger core. Phase II was the creation and observation of a system integrated demonstrator unit consisting of the Enhanced Energy Recovery Ventilator (EERV) developed in Phase I coupled to a standard Carrier 50HJ rooftop packaged unitary air conditioning unit. Phase III was the optimization of the system prior to commercialization based on the knowledge gained in Phase II. To assure that the designs chosen have the possibility of meeting cost objectives, a preliminary manufacturability and production cost study was performed by the Center for Automation Technologies at RPI. Phase I also included a preliminary design for the integrated unit to be further developed in Phase II. This was to assure that the physical design of the heat exchanger designed in Phase I would be acceptable for use in Phase II. An extensive modeling program was performed by the Center for Building Performance & Diagnostics of CMU. Using EnergyPlus as the software, a typical office building with multiple system configurations in multiple climatic zones in the US was simulated. The performance of energy recovery technologies in packaged rooftop HVAC equipment was evaluated. The experimental program carried out in Phases II and III consisted of fabricating and testing a demonstrator unit using Carrier Comfort Network (CCN) based controls. Augmenting the control signals, CCN was also used to monitor and record additional performance data that supported modeling and conceptual understanding. The result of the testing showed that the EERV core developed in Phase I recovered energy in the demonstrator unit at the expected levels based on projections. In fact, at near-ARI conditions the core recovered about one ton of cooling enthalpy when operating with a three-ton rooftop packaged unit.

  4. Influence of architectural screens on rooftop concentrations due to effluent from short stacks

    SciTech Connect (OSTI)

    Petersen, R.L.; Carter, J.J.; Ratcliff, M.A.

    1999-07-01

    This paper describes the wind tunnel study conducted on behalf of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to evaluate and quantify the effect of architectural screens on rooftop concentration levels due to effluent from short stacks. An equivalent stack height (ESH) concept is introduced, which is used to develop a stack height reduction (SHR) factor that may be used in conjunction with existing stack design procedures found in the 1997 ASHRAE Handbook--Fundamentals to account for the presence of architectural screens.

  5. Literature review : reducing soft costs of rooftop solar installations attributed to structural considerations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.

    2013-03-01

    Typical engineering methods utilized to calculate stresses on a roof structure involve simplifying assumptions that render a complex non-linear structure a simple and basic determinate beam. That is, instead of considering the composite action of the entire roof structure, the engineer evaluates only a single beam that is deemed conservatively to represent an affected rafter or top chord of a truss. This simplification based on assumptions of a complex problem is where significant conservatism can be introduced. Empirical data will be developed to evaluate this issue. Simple wood beams will be tested to failure. More complex and complete sections of roof structures that include composite action will also be tested to failure. The results can then be compared. An initial step in this process involves a literature review of any work that has been performed on roof structure composite action. The following section summarizes the literature review that was completed.

  6. solar

    National Nuclear Security Administration (NNSA)

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

  7. Solar lighting | Open Energy Information

    Open Energy Info (EERE)

    only need to place the lights in a sunny location. Others have the lights separate from a solar cell panel. Only the panel needs to be placed in a sunny location. Units vary in...

  8. Historical and Current U.S. Strategies for Boosting Distributed...

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

    policy in China, the rooftop solar owners would use the electricity generated from their solar panel first, and then sell the excess electricity back to the grid for the separate...

  9. From Silver to Copper: SunShot Awardee TetraSun's Technology...

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

    Consumers will soon have new options in their quest for the most efficient rooftop solar panels, thanks in part to former SunShot awardee TetraSun. Solar industry leader First ...

  10. Energy Office Grant Helps the Virgin Islands Environmental Resource Station Install Solar Panels, Improve Efficiency, and Cut Monthly Energy Use Nearly 30% (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This fact sheet highlights the energy challenges faced by the Virgin Islands Environmental Resource Station (VIERS), the renewable energy and energy efficiency solutions implemented, the resulting energy efficiency savings, and other project benefits. In 2011, VIERS installed a 9.4 kW solar system funded by a $50,000 American Recovery and Reinvestment Act (ARRA) grant, which was administered by VIEO. To identify additional energy-saving opportunities, VIERS performed an energy audit of appliances, which resulted in the removal of two water coolers and the installation of a water meter to monitor water use and how it relates to electric pump use. VIERS also added an educational component to the project, developing a solar classroom near the original solar system. By building on previous energy conservation measures and making additional investments in renewable energy technology, VIERS has lowered its average monthly energy consumption nearly 30%, even with an increase in guests. The VIERS efforts are not limited to the technology installations, however. They also serve to impact the youth of the U.S. Virgin Islands (USVI) by educating young people about energy efficiency and renewable energy technologies and their energy and environmental impacts. VIERS solar system is connected to the Web via a live feed that posts solar output data in real time, increasing the VIERS solar classroom's potential educational impact exponentially.

  11. NREL: News - Nationally Renowned Architect Panel Announces Judging Results

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

    at Solar Decathlon Nationally Renowned Architect Panel Announces Judging Results at Solar Decathlon Sunday, September 29, 2002 Design, Livability Results Important to Competing University Teams Washington, D.C.-A panel of nationally renowned architects today announced that The University of Virginia had taken place first in the Design and Livability contest at the Solar Village on the National Mall in Washington, D.C. today. The University of Puerto Rico-Mayaguez placed second and The

  12. Assessment of Wind/Solar Co-Located Generation in Texas

    Broader source: Energy.gov [DOE]

    As part of the Solar America Cities program, Austin Energy proposed to perform an assessment of the rooftop area available for PV development within its service area. Austin Energy contracted with Clean Energy Associates (CEA) to perform the analysis. This report summarizes the project objectives, data sources and methodological approach employed, and results.

  13. Solar Market Analytics, Roadmapping, and Tracking NY (SMART NY) Final Report

    SciTech Connect (OSTI)

    Case, Tria; Reilly, Laurie; Kling, Alison

    2014-05-15

    This is the final report, including links to Working Group reports and an attached Working Group report for SunShot Initiative Rooftop Solar Challenge I, from Sustainable CUNY of the City University of New York, on behalf of New York City

  14. Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated Fault Detection and Diagnostics- 2014 BTO Peer Review

    Broader source: Energy.gov [DOE]

    Presenter: Srinivas Katipamula, Pacific Northwest National Laboratory This multiyear research and development project aims to determine the magnitude of energy savings achievable by retrofitting existing packaged rooftop air conditioner units (RTUs) with advanced control strategies not ordinarily used for packaged units.

  15. Integrated solar collector

    DOE Patents [OSTI]

    Tchernev, Dimiter I.

    1985-01-01

    A solar collector having a copper panel in a contiguous space relationship with a condenser-evaporator heat exchanger located under the panel, the panel having a honeycomb-like structure on its interior defining individual cells which are filled with zeolite loaded, in its adsorbed condition, with 18 to 20% by weight of water. The interior of the panel and heat exchanger are maintained at subatmospheric pressure of about 0.1 to 1 psia. The panel and heat exchanger are insulated on their lateral sides and bottoms and on the top of the heat exchange. The panel has a black coating on its top which is exposed to and absorbs solar energy. Surrounding the insulation (which supports the panel) is an extruded aluminum framework which supports a pair of spaced-apart glass panels above the solar panel. Water in conduits from a system for heating or cooling or both is connected to flow into an inlet and discharge from outlet of a finned coil received within the heat exchanger. The collector panel provides heat during the day through desorption and condensing of water vapor from the heated solar panel in the heat exchanger and cools at night by the re-adsorption of the water vapor from the heat exchanger which lowers the absolute pressure within the system and cools the heat exchange coils by evaporation.

  16. Solar Industry At Work: Streamlining Home Solar Installation

    Broader source: Energy.gov [DOE]

    As Director of Operations at Sunrun, Tillie Peterson works to get solar panels up and running for homeowners as quickly and efficiently as possible.

  17. Solar Blog | Department of Energy

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

    Rep. Pascrell, John Lushetsky and other officials at the ribbon cutting. Largest Solar Panel Installation at a U.S. University Goes Live John Lushetsky, Program Manager of...

  18. EERE Success Story-Chicago Solar Express Reduces Costs, Wait Times |

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

    Department of Energy Chicago Solar Express Reduces Costs, Wait Times EERE Success Story-Chicago Solar Express Reduces Costs, Wait Times October 28, 2014 - 10:48am Addthis The Solar Express program in Chicago, Illinois-funded through a SunShot Initiative Rooftop Solar Challenge (RSC) I award of $750,000-is making it faster, easier, and cheaper for residents to go solar by cutting long wait times and fees for solar permits. Residents of Chicago can now acquire permits for their residential

  19. 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 concentrator optical efficiency was found to decrease significantly with increasing aperture width beyond 0.5 m due to parasitic waveguide out-coupling loss and low-level absorption that become dominant at larger scale. A heat transfer model was subsequently implemented to predict collector fluid heat gain and outlet temperature as a function of flow rate using the optical model as a flux input. It was found that the aperture width size limitation imposed by the optical efficiency characteristics of the waveguide limits the absolute optical power delivered to the heat transfer element per unit length. As compared to state-of-the-art parabolic trough CPV system aperture widths approaching 5 m, this limitation leads to an approximate factor of order of magnitude increase in heat transfer tube length to achieve the same heat transfer fluid outlet temperature. The conclusion of this work is that scattering solar thermal concentration cannot be implemented at the scale and efficiency required to compete with the performance of current parabolic trough CSP systems. Applied within the alternate context of CPV, however, the results of this work have likely opened up a transformative new path that enables quasi-static, high efficiency CPV to be implemented on rooftops in the form factor of traditional fixed-panel photovoltaics.

  20. Solar

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

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

  1. Solar

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

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

  2. Solar Water Heater Basics | Department of Energy

    Energy Savers [EERE]

    Water Heating Solar Water Heater Basics Solar Water Heater Basics August 19, 2013 - 3:01pm Addthis Illustration of an active, closed loop solar water heater. A large, flat panel ...

  3. Solar Systems USA | Open Energy Information

    Open Energy Info (EERE)

    up":"","inlineLabel":"","visitedicon":"" Hide Map References: Solar Systems USA Online Solar Panel Retailer1 This article is a stub. You can help OpenEI by expanding it. Solar...

  4. Automatic generation and analysis of solar cell IV curves

    DOE Patents [OSTI]

    Kraft, Steven M.; Jones, Jason C.

    2014-06-03

    A photovoltaic system includes multiple strings of solar panels and a device presenting a DC load to the strings of solar panels. Output currents of the strings of solar panels may be sensed and provided to a computer that generates current-voltage (IV) curves of the strings of solar panels. Output voltages of the string of solar panels may be sensed at the string or at the device presenting the DC load. The DC load may be varied. Output currents of the strings of solar panels responsive to the variation of the DC load are sensed to generate IV curves of the strings of solar panels. IV curves may be compared and analyzed to evaluate performance of and detect problems with a string of solar panels.

  5. Solar Goes Big: Launching the California Valley Solar Ranch ...

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

    This facility is one of the world's largest solar photovoltaic (PV) power plants with the ability to shift the position of panels wirelessly to track weather and optimize solar ...

  6. Thermo Solar s r o | Open Energy Information

    Open Energy Info (EERE)

    Solar s r o Jump to: navigation, search Name: Thermo Solar s.r.o. Place: iar nad Hronom, Slovakia Zip: 965 01 Sector: Solar Product: Manufacturer of solar passive heating panels....

  7. AsahiSolar Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AsahiSolar Co Ltd Jump to: navigation, search Name: AsahiSolar Co Ltd Place: Oita-Ken, Japan Zip: 870-0844 Sector: Solar Product: Manufactures simple solar panels and hybrid...

  8. SolarBridge Technologies formerly SmartSpark Energy Systems ...

    Open Energy Info (EERE)

    Texas Zip: 78731 Sector: Solar Product: Developing a micro-inverter for residential solar panels, and charge equalisers to improve life for battery-powered equipment....

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

    Open Energy Info (EERE)

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

  10. Solar and Wind Permitting Standards | Open Energy Information

    Open Energy Info (EERE)

    Residential Residential Schools State Government Wind Yes City and County of Denver - Solar Panel Permitting (Colorado) SolarWind Permitting Standards Colorado Commercial...

  11. Solar/Wind Permitting Standards | Open Energy Information

    Open Energy Info (EERE)

    Residential Residential Schools State Government Wind Yes City and County of Denver - Solar Panel Permitting (Colorado) SolarWind Permitting Standards Colorado Commercial...

  12. New England Breeze Solar and Wind Installers | Open Energy Information

    Open Energy Info (EERE)

    Greater Boston Area Sector: Renewable energy, Services, Solar, Wind energy Product: Solar Panel and Wind Turbine Installation Year Founded: 2006 Phone Number: 978-567-9463...

  13. CEEG Shanghai Solar Science Technology | Open Energy Information

    Open Energy Info (EERE)

    integrates services including the research, development, production, sales of polysilicon solar panel References: CEEG (Shanghai) Solar Science & Technology1 This article is a...

  14. Solar Water Heaters | Department of Energy

    Energy Savers [EERE]

    Heat & Cool » Water Heating » Solar Water Heaters Solar Water Heaters Solar panels heat water that is delivered to a storage tank.| Photo courtesy of David Springer, National Renewable Energy Laboratory Solar panels heat water that is delivered to a storage tank.| Photo courtesy of David Springer, National Renewable Energy Laboratory Solar water heaters -- also called solar domestic hot water systems -- can be a cost-effective way to generate hot water for your home. They can be used in

  15. Solar Water Heaters | Department of Energy

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

    Water Heating » Solar Water Heaters Solar Water Heaters Solar panels heat water that is delivered to a storage tank.| Photo courtesy of David Springer, National Renewable Energy Laboratory Solar panels heat water that is delivered to a storage tank.| Photo courtesy of David Springer, National Renewable Energy Laboratory Solar water heaters -- also called solar domestic hot water systems -- can be a cost-effective way to generate hot water for your home. They can be used in any climate, and the

  16. Solar Decathlon | Department of Energy

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

    and Farhana Rahman of the New York City College of Technology prepare to install the last solar panel on Day 8 of the U.S. Department of Energy Solar Decathlon. Image: Thomas...

  17. Solar So Simple It Is Just a Click Away

    Broader source: Energy.gov [DOE]

    The SunShot Initiative is working to make it easier for consumers to install solar panels on their homes.

  18. EECBG Success Story: Police Station Triples Solar Power – and Savings

    Broader source: Energy.gov [DOE]

    With the help of an Energy Efficiency and Conservation Grant (EECBG), the North Community Police Substation installed new, roof-top photovoltaic panels that provide almost 40% of the station's electricity, up from 12.5%. The station now has a 90 kW PV system and will save between $4,000 and $6,000 a month in electric bills. Learn more.

  19. Community and Shared Solar | Department of Energy

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

    Community and Shared Solar Community and Shared Solar Community and Shared Solar As the solar energy market rapidly expands, more people are exploring the possibility of going solar. While not everyone is able to install panels on their roofs, due to unsuitable roof space, living in a large condo building, or renting living space, alternative business models like community solar and shared solar are gaining popularity and increasing access to clean solar energy. Community solar business models

  20. RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration: Hawaii and Guam Energy Improvement Technology Demonstration Project

    SciTech Connect (OSTI)

    Doebber, I.; Dean, J.; Dominick, J.; Holland, G.

    2014-03-01

    As part of its overall strategy to meet its energy goals, the Naval Facilities Engineering Command (NAVFAC) partnered with U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to rapidly demonstrate and deploy cost-effective renewable energy and energy efficiency technologies. This was one of several demonstrations of new and underutilized commercial energy efficiency technologies. The consistent year-round demand for air conditioning and dehumidification in Hawaii provides an advantageous demonstration location for advanced rooftop control (ARC) retrofit kits to packaged rooftop units (RTUs). This report summarizes the field demonstration of ARCs installed on nine RTUs serving a 70,000-ft2 exchange store (large retail) and two RTUs, each serving small office buildings located on Joint Base Pearl Harbor-Hickam (JBPHH).

  1. Final Report- Chicago Region Solar Market Transformation Team

    Broader source: Energy.gov [DOE]

    The goal of Chicago’s RSC I grant program was to induce a scaled rooftop solar PV market in Chicago. The principal motives driving this project were economic growth and increasing local clean energyresources.To buttress the City’s commitment to the RSC I project, the City released a 2015 Sustainable Chicago Action Agenda that announced the City’s goal is to create an additional 20 megawatts of renewable energy by 2015.

  2. RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration: Hawaii and Guam Energy Improvement Technology Demonstration Project

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

    8GO28308 National Renewable Energy Laboratory 15013 Denver West Parkway Golden, CO 80401 303-275-3000 * www.nrel.gov RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration Hawaii and Guam Energy Improvement Technology Demonstration Project I. Doebber, J. Dean, J. Dominick, and G. Holland Produced under direction of Naval Facilities Engineering Command (NAVFAC) by the National Renewable Energy Laboratory (NREL) under Interagency Agreement 11-01829 Technical Report

  3. Energy efficient building structure and panel therefor

    SciTech Connect (OSTI)

    Carroll, Th.J.; Paisley, J.K.

    1984-08-28

    A building structure is constructed from a plurality of sheathed, foam cored structural panels which are adapted to receive solar energy conversion or heat storage devices and are adapted to be connected in an air flow loop to provide integral heating and/or cooling systems for the building structure.

  4. Streamline, Organizational, Legislative and Administrative Response to Permitting, PV Market Share, and Solar Energy Costs (Broward Go SOLAR)

    SciTech Connect (OSTI)

    Halsey, Jeffery D.

    2013-08-28

    Broward County and its partners (the Go SOLAR Team), operating under a Department of Energy Rooftop Solar Challenge Agreement, designed, developed and implemented an online permitting system for rooftop solar PV systems. This is a single web based system with a single permit fee that will issue a permit, with a set of design plans preapproved by partner building officials, within one hour. The system is currently available at gosolar.broward.org for use within any of the partner Authorities Having [permitting] Jurisdiction (AHJ). Additionally, the Go SOLAR Team researched, developed and to the extent feasible, implemented three best management practices to make a fertile environment for the new online permit system. These included Net Metering and Interconnection Standards, Solar-Friendly Financing, and Planning and Zoning Ordinances. Finally, the team implemented a substantial outreach effort to advocate for the development of solar in Broward County, with an emphasis on Solar Rights, concluding with a Go SOLAR Fest day and a half conference with over 1,200 attendees and 50 exhibitors. The Go SOLAR project was completed on time, under DOE’s budgeted amount, and all project objectives were met or exceeded.

  5. Flexible Thin-Film Silicon Solar Cells

    SciTech Connect (OSTI)

    Vijh, Aarohi; Cao, Simon; Mohring, Brad

    2014-01-11

    High fuel costs, environmental concerns and issues of national energy security have brought increasing attention to a distributed generation program for electricity based on solar technology. Rooftop photovoltaic (PV) systems provide distributed generation since the power is consumed at the point of production, thus eliminating the need for costly additional transmission lines. However, most current photovoltaic modules are heavy and require a significant amount of labor and accessory hardware such as mounting frames for installation on rooftops. This makes rooftop systems impractical or cost prohibitive in many instances. Under this project, Xunlight has advanced its manufacturing process for the production of lightweight, flexible thin-film silicon based photovoltaic modules, and has enhanced the reliability and performance of Xunlight’s products. These modules are easily unrolled and adhered directly to standard commercial roofs without mounting structures or integrated directly into roofing membrane materials for the lowest possible installation costs on the market. Importantly, Xunlight has now established strategic alliances with roofing material manufacturers and other OEMs for the development of building integrated photovoltaic roofing and other PV-enabled products, and has deployed its products in a number of commercial installations with these business partners.

  6. Interactive optical panel

    DOE Patents [OSTI]

    Veligdan, James T.

    1995-10-03

    An interactive optical panel assembly 34 includes an optical panel 10 having a plurality of ribbon optical waveguides 12 stacked together with opposite ends thereof defining panel first and second faces 16, 18. A light source 20 provides an image beam 22 to the panel first face 16 for being channeled through the waveguides 12 and emitted from the panel second face 18 in the form of a viewable light image 24a. A remote device 38 produces a response beam 40 over a discrete selection area 36 of the panel second face 18 for being channeled through at least one of the waveguides 12 toward the panel first face 16. A light sensor 42,50 is disposed across a plurality of the waveguides 12 for detecting the response beam 40 therein for providing interactive capability.

  7. Interactive optical panel

    DOE Patents [OSTI]

    Veligdan, J.T.

    1995-10-03

    An interactive optical panel assembly includes an optical panel having a plurality of ribbon optical waveguides stacked together with opposite ends thereof defining panel first and second faces. A light source provides an image beam to the panel first face for being channeled through the waveguides and emitted from the panel second face in the form of a viewable light image. A remote device produces a response beam over a discrete selection area of the panel second face for being channeled through at least one of the waveguides toward the panel first face. A light sensor is disposed across a plurality of the waveguides for detecting the response beam therein for providing interactive capability. 10 figs.

  8. Bay Ridge Gardens - Mixed Humid Affordable Multifamily Housing...

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

    Pre-retrofit annual energy use (normalized): 28.4 kilowatt-hour per square foot (kWhft 2 ... efficiency * Solar thermal rooftop system; flat panel collector * Energy dashboard for ...

  9. Energy 101: Solar PV

    Broader source: Energy.gov [DOE]

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power...

  10. Energy 101: Solar PV

    ScienceCinema (OSTI)

    None

    2013-05-29

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

  11. Energy 101: Solar PV

    SciTech Connect (OSTI)

    2011-01-01

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

  12. PROJECT PROFILE: Sistine Solar (Incubator 10) | Department of Energy

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

    Sistine Solar (Incubator 10) PROJECT PROFILE: Sistine Solar (Incubator 10) Project Title: SolarSkin, Color-Match Solar Panels Funding Opportunity: SunShot Technology to Market (Incubator 10) SunShot Subprogram: Technology to Market Location: Somerville, MA Amount Awarded: $1,000,000 Awardee Cost Share: $250,000 Project Investigator: Senthil Balasubramanian In this project, Sistine Solar plans to develop, test, and manufacture SolarSkin, a new, integrated component of a solar photovoltaic panel

  13. Solar Powered Classroom

    ScienceCinema (OSTI)

    none

    2013-06-27

    A group of fourth graders in Durham, North Carolina, are showing America the way to a clean energy future. They are installing solar panels on their classroom roof for a project that goes above and beyond a normal day in school. From researching solar panel installation, to generating funds for the project via Kickstarter, these are students who put their plans into action. Their accomplishments go beyond the classroom and stress the importance of getting people of all ages involved in renewable energy.

  14. Solar Powered Classroom

    SciTech Connect (OSTI)

    2013-06-13

    A group of fourth graders in Durham, North Carolina, are showing America the way to a clean energy future. They are installing solar panels on their classroom roof for a project that goes above and beyond a normal day in school. From researching solar panel installation, to generating funds for the project via Kickstarter, these are students who put their plans into action. Their accomplishments go beyond the classroom and stress the importance of getting people of all ages involved in renewable energy.

  15. Western Wind and Solar Integration Study (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01

    Initiated in 2007 to examine the operational impact of up to 35% penetration of wind, photovoltaic (PV), and concentrating solar power (CSP) energy on the electric power system, the Western Wind and Solar Integration Study (WWSIS) is one of the largest regional wind and solar integration studies to date. The goal is to understand the effects of variability and uncertainty of wind, PV, and CSP on the grid. In the Western Wind and Solar Integration Study Phase 1, solar penetration was limited to 5%. Utility-scale PV was not included because of limited capability to model sub-hourly, utility-scale PV output . New techniques allow the Western Wind and Solar Integration Study Phase 2 to include high penetrations of solar - not only CSP and rooftop PV but also utility-scale PV plants.

  16. Proposal Study Panels

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

    Proposal Study Panels Print Two Proposal Study Panels (PSPs) exist at the ALS: one for the general sciences and one for structural biology. The role of the PSPs is desribed in User Policy. Note: Users are urged NOT to contact any members of the panels directly. Current members of the general sciences PSP, as of April 2016, are Masa Fukuto, Brookhaven National Laboratory Carol Hirschmugl, University of Wisconsin, Milwaukee Peter Johnson (chair), Brookhaven National Laboratory Apurva Mehta, SLAC

  17. Proposal Study Panels

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

    Proposal Study Panels Print Two Proposal Study Panels (PSPs) exist at the ALS: one for the general sciences and one for structural biology. The role of the PSPs is desribed in User Policy. Note: Users are urged NOT to contact any members of the panels directly. Current members of the general sciences PSP, as of April 2016, are Masa Fukuto, Brookhaven National Laboratory Carol Hirschmugl, University of Wisconsin, Milwaukee Peter Johnson (chair), Brookhaven National Laboratory Apurva Mehta, SLAC

  18. Hydrogen Safety Panel

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

    or otherwise restricted information. Project ID: scs07weiner PNNL-SA-65397 2 IEA HIA Task 19 Working Group Hydrogen Safety Training Props Hydrogen Safety Panel Incident...

  19. Proposal Study Panels

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

    to contact any members of the panels directly. Current members of the general sciences PSP, as of February 2014, are Masa Fukuto, Brookhaven National Laboratory Carol Hirschmugl,...

  20. Solar Real-Time Pricing: Is Real-Time Electricity Pricing Beneficial to

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

    1 of 5 More than 15,000 solar energy professionals from 75 countries were on hand at Solar Power International (SPI) in Anaheim, CA to network, share ideas, and participate in educational programming related to growing the American solar energy market. 2 of 5 SPI 2015 was held at the Anaheim Convention Center, which features a 2.4 MW solar PV system on its rooftop. The system generates an estimated 3.6 million kilowatt-hours of electricity annually - enough energy to power 600 homes for a year.

  1. Solar Manufacturing Technology 2 | Department of Energy

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

    with Flextronics International USA, to deploy a fully integrated solar glass coating manufacturing line ... total energy yields from these panels enabling a significant reduction ...

  2. High-Efficiency Solar Cogeneration with Thermophotovoltaic &...

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

    Solar Cogeneration with TPV & Fiber-Optic Daylighting More Documents & Publications 2015 Building Technologies Office Program Peer Review Report Low Capital Photovoltaic Panel ...

  3. Moon Solar Light MSL | Open Energy Information

    Open Energy Info (EERE)

    Product: developed and distributes solar-based lighting applications using PV panels, LED lights and ultra-capacitors. Coordinates: 31.899309, 34.807999 Show Map Loading...

  4. Technical Review Panel Report

    Energy Savers [EERE]

    TRP Report v7, 12 Aug 2012 TRP Report Final December 2012 Advanced Reactor Concepts Technical Review Panel Report Evaluation and Identification of future R&D on eight Advanced Reactor Concepts, conducted April - September 2012 December 2012 Public release version 2 Public release version 3 Table of Contents Summary ................................................................................................................................... 4 1. Overview of the Technical Review Panel

  5. Flexible optical panel

    DOE Patents [OSTI]

    Veligdan, James T.

    2001-01-01

    A flexible optical panel includes laminated optical waveguides, each including a ribbon core laminated between cladding, with the core being resilient in the plane of the core for elastically accommodating differential movement thereof to permit winding of the panel in a coil.

  6. Historic Virginia Market Powered by Solar Energy | Department...

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

    Virginia Market Powered by Solar Energy Historic Virginia Market Powered by Solar Energy November 3, 2010 - 11:00am Addthis Solar panels at the Community Market Building in ...

  7. Apollo Solar Energy Co Ltd ASEC | Open Energy Information

    Open Energy Info (EERE)

    Co Ltd ASEC Jump to: navigation, search Name: Apollo Solar Energy Co Ltd (ASEC) Place: Taoyuan Hsien, Taiwan Zip: 325 Sector: Solar Product: Producer of modules for solar panels....

  8. Solar energy integrated at Hawaiian military housing | Department...

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

    center, as well as for thousands of new, solar-powered homes that will be constructed, complete with solar water heaters and, in the near future, solar photovoltaic panels. ...

  9. EECBG Success Story: Alabama Justice Center Expands its Solar...

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

    Justice Center Expands its Solar Capabilities The roof of the justice center where a solar panel array will be installed to power a solar thermal water-heating system | Photo...

  10. So You Want to Go Solar? 3 Things to Consider When Installing...

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

    What do you want to know about solar energy at home? Tell Us Addthis Installing solar panels ... passive solar energy, and the financial benefits of solar energy, just to name a few ...

  11. Austin Energy- Commercial Solar PV Incentive Program

    Broader source: Energy.gov [DOE]

    In order to qualify for this program, PV modules must be new and be listed on the California Energy Commission's Go Solar web site. In addition, all solar panels must have a 20-year manufacturer ...

  12. 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 ...

  13. Outdoor Solar Lighting | Department of Energy

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

    on Outdoor Lighting Solar panels are a great way to produce clean energy at home | Photo courtesy of Stefano Paltera, U.S. Department of Energy. Harnessing Solar Energy at Home...

  14. Solar in Demand | Department of Energy

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

    In case you missed it... This week, the Wall Street Journal published an article, "U.S. Solar-Panel Demand Expected to Double," highlighting the successes of the U.S. solar ...

  15. Smart Solar Inc | Open Energy Information

    Open Energy Info (EERE)

    Was developing concentrator PV modules and a system for monitoring solar panels for maintenance. References: Smart Solar Inc1 This article is a stub. You can help OpenEI by...

  16. SOLAR PANELS ON HUDSON COUNTY FACILITIES

    SciTech Connect (OSTI)

    BARRY, KEVIN

    2014-06-06

    This project involved the installation of an 83 kW grid-connected photovoltaic system tied into the energy management system of Hudson County's new 60,000 square foot Emergency Operations and Command Center and staff offices. Other renewable energy features of the building include a 15 kW wind turbine, geothermal heating and cooling, natural daylighting, natural ventilation, gray water plumbing system and a green roof. The County intends to seek Silver LEED certification for the facility.

  17. Structural considerations for solar installers : an approach for small, simplified solar installations or retrofits.

    SciTech Connect (OSTI)

    Richards, Elizabeth H.; Schindel, Kay; Bosiljevac, Tom; Dwyer, Stephen F.; Lindau, William; Harper, Alan

    2011-12-01

    Structural Considerations for Solar Installers provides a comprehensive outline of structural considerations associated with simplified solar installations and recommends a set of best practices installers can follow when assessing such considerations. Information in the manual comes from engineering and solar experts as well as case studies. The objectives of the manual are to ensure safety and structural durability for rooftop solar installations and to potentially accelerate the permitting process by identifying and remedying structural issues prior to installation. The purpose of this document is to provide tools and guidelines for installers to help ensure that residential photovoltaic (PV) power systems are properly specified and installed with respect to the continuing structural integrity of the building.

  18. 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.

  19. Gas filled panel insulation

    DOE Patents [OSTI]

    Griffith, B.T.; Arasteh, D.K.; Selkowitz, S.E.

    1993-12-14

    A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation. 18 figures.

  20. Gas filled panel insulation

    DOE Patents [OSTI]

    Griffith, Brent T.; Arasteh, Dariush K.; Selkowitz, Stephen E.

    1993-01-01

    A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation.

  1. Final Report- Developing Solar Friendly Communities

    Broader source: Energy.gov [DOE]

    With soft costs now representing more than half the cost of an average rooftop solar energy system, the need to target cost reductions in these areas is critical. Local jurisdictions have a big role to play in the permitting and inspection realm which was the focus of our program. Especially in Colorado, a state with a strong tradition of local control, cities and counties are resistant to outside entities dictating or even suggesting changes. That's why the Solar Friendly Communities program provided a positive incentive for participating in streamlining solar costs. This proved to be the most powerful aspect of the project. The branding, materials and format were developed into a turn-key product that can be scaled nationally.

  2. GSA Awards Contract to Bring 3 Megawatts of Solar to Federal Buildings in

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

    Washington, D.C. | Department of Energy Awards Contract to Bring 3 Megawatts of Solar to Federal Buildings in Washington, D.C. GSA Awards Contract to Bring 3 Megawatts of Solar to Federal Buildings in Washington, D.C. December 17, 2015 - 10:26am Addthis The U.S. General Services Administration (GSA) awarded a contract to WGL for the construction of rooftop photovoltaic arrays that will bring approximately 3 megawatts of solar energy across 18 federal buildings in Washington, D.C. The

  3. OUT Success Stories: Solar Roofing Shingles

    DOE R&D Accomplishments [OSTI]

    Johnson, N.

    2000-08-01

    Thin-film photovoltaic (PV) cells are now doubling as rooftop shingles. PV shingles offer many advantages. The energy generated from a building's PV rooftop shingles can provide power both to the building and the utility's power grid.

  4. Oven wall panel construction

    DOE Patents [OSTI]

    Ellison, Kenneth; Whike, Alan S.

    1980-04-22

    An oven roof or wall is formed from modular panels, each of which comprises an inner fabric and an outer fabric. Each such fabric is formed with an angle iron framework and somewhat resilient tie-bars or welded at their ends to flanges of the angle irons to maintain the inner and outer frameworks in spaced disposition while minimizing heat transfer by conduction and permitting some degree of relative movement on expansion and contraction of the module components. Suitable thermal insulation is provided within the module. Panels or skins are secured to the fabric frameworks and each such skin is secured to a framework and projects laterally so as slidingly to overlie the adjacent frame member of an adjacent panel in turn to permit relative movement during expansion and contraction.

  5. Stepped inlet optical panel

    DOE Patents [OSTI]

    Veligdan, James T.

    2001-01-01

    An optical panel includes stacked optical waveguides having stepped inlet facets collectively defining an inlet face for receiving image light, and having beveled outlet faces collectively defining a display screen for displaying the image light channeled through the waveguides by internal reflection.

  6. Industry Partners Panel

    Broader source: Energy.gov [DOE]

    Industry Panel presenters include: Michael G. Andrew, Director - Academic and Technical Programs, Advanced Products and Materials, Johnson Controls Power Solutions Michael A. Fetcenko, Vice President and Managing Director, BASF Battery Materials – Ovonic, BASF Corporation Adam Kahn, Founder and CEO, AKHAN Technologies, Inc. Stephen E. Zimmer, Executive Director, United States Council for Automotive Research (USCAR)

  7. Bexar County Parking Garage Photovoltaic Panels

    SciTech Connect (OSTI)

    Golda Weir

    2012-01-23

    The main objective of the Bexar County Parking Garage Photovoltaic (PV) Panel project is to install a PV System that will promote the use of renewable energy. This project will also help sustain Bexar County ongoing greenhouse gas emissions reduction and energy efficiency goals. The scope of this project includes the installation of a 100-kW system on the top level of a new 236,285 square feet parking garage. The PV system consists of 420 solar panels that covers 7,200 square feet and is tied into the electric-grid. It provides electricity to the office area located within the garage. The estimated annual electricity production of the PV system is 147,000 kWh per year.

  8. Sioux Students Kindle Solar Knowledge | Department of Energy

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

    He envisioned taking the work a step further by integrating solar panels into new homes to ... USA Science and Engineering Festival: Inspiring and Educating the Clean Energy ...

  9. Energy Department Announces $18 Million to Develop Solar Energy...

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

    ... Fraunhofer USA Center for Sustainable Energy Systems (Boston) will receive 3.5 million ... allow for the electricity produced by solar panels to be converted into electricity. ...

  10. Energy Secretary Announces $13 Million to Expand Solar Energy...

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

    more efficient solar panels, known as photovoltaic devices. "This investment is a major ... One or two selections are expected. National Voluntary Photovoltaic (PV) Module ...

  11. Solar Power Generates Big Savings in Salinas, California

    Broader source: Energy.gov [DOE]

    A new solar panel array at Monterey County's Laurel Yard Complex is expected to save the county thousands of dollars a year in energy costs.

  12. Keeping America Competitive: A Solar Manufacturing Boost In San...

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

    a new, larger module to reduce installation costs while implementing improved system optics to further increase the efficiency levels of the solar panels. Modules from the plant...

  13. Organics Energize Solar Cell Research | Argonne Leadership Computing...

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

    energy we have only recently begun to harvest and convert into electricity. Today, most solar panel technologies rely on crystalline silicon photovoltaic cells. Despite their...

  14. Space Solar Power(SSP) | Open Energy Information

    Open Energy Info (EERE)

    lower costs. SSP Attributes Compared with Other Energy Alternatives By collecting the solar energy at GEO, using a photovoltaic (PV) panel of a given size, SSP would collect...

  15. Pioneering the New Grid: Pole-mounted Solar

    Broader source: Energy.gov [DOE]

    Innovative new systems not only generate energy through a solar panel that feeds into the grid, but they are also equipped with communications capabilities.

  16. Tax Credits Give Thin-Film Solar a Big Boost

    Broader source: Energy.gov [DOE]

    California company will expand its capacity to make its thin-film solar panels by more than ten times, thanks to two Recovery Act tax credits.

  17. solar power | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    power NNSA missions now powered by California gold...en sunshine An NNSA national laboratory is taking advantage of California's blue skies to power critical national security and science research. The solar power system installed at Lawrence Livermore National Laboratory (LLNL) is now fully functional and producing electricity. In 2015, NNSA announced the... Final row of solar panels installed at Livermore The last row of panels at the Whitethorn Solar Facility project site at Lawrence

  18. DRUG TESING PANEL & CUTOFF CONCENTRATIONS

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

    DRUG TESTING PANEL & CUTOFF CONCENTRATIONS Initial Test Analyte Initial Test Cutoff Concentration Confirmatory Test Analyte Confirmatory Test Cutoff Concentration Marijuana ...

  19. Open workshop on solar technologies. Proceedings

    SciTech Connect (OSTI)

    Not Available

    1980-07-01

    The deliberations, conclusions, and recommendations of six panels asked to provide advice to the Department of Energy on the subject of solar energy are detailed. Approximately 60 invited panelists and 120 observers met in three panels devoted to Solar Energy and Cities and three panels on Solar Energy and Employment. The day-and-one-half meeting occurred at the Department of Energy's Forrestal Building headquarters in Washington, DC, on 23 and 24 October 1979. Introductory speeches by seven experts, excerpts from the succeeding two half-days of discussion, the final reports for the panel chairpersons, and subsequent discussion and questioning are included. Approximately 125 findings and recommendations were developed by the six panels covering a wide variety of topics. Major recurring themes were recommendations for increased funding, federal program improvement, conservation, outreach programs, small business funding, and solar training programs. Detailed responses from the Department of Energy have been prepared for all recommendations and are contained in a companion volume.

  20. Solar and nuclear energy expertise to be enhanced by research centers

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

    Heat & Cool » Water Heating » Solar Water Heaters Solar Water Heaters Solar panels heat water that is delivered to a storage tank.| Photo courtesy of David Springer, National Renewable Energy Laboratory Solar panels heat water that is delivered to a storage tank.| Photo courtesy of David Springer, National Renewable Energy Laboratory Solar water heaters -- also called solar domestic hot water systems -- can be a cost-effective way to generate hot water for your home. They can be used in

  1. EECBG Success Story: Solar and Energy Efficiency Justice | Department...

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

    The roof of the justice center where a solar panel array will be installed to power a solar thermal water-heating system | Photo courtesy of Blount County, Tennessee. The roof of ...

  2. Winning the Future: Grand Ronde Solar Projects Reduce Pollution...

    Office of Environmental Management (EM)

    Grand Ronde Solar Projects Reduce Pollution, Cut Costs Winning the Future: Grand Ronde Solar Projects Reduce Pollution, Cut Costs October 20, 2014 - 5:00pm Addthis PV panels ...

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

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

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

  4. SunJoi Solar Inc | Open Energy Information

    Open Energy Info (EERE)

    Inc Jump to: navigation, search Name: SunJoi Solar Inc Product: Manufacturer of photovoltaic thin film panels and modules. References: SunJoi Solar Inc1 This article is a...

  5. EECBG Success Story: Solar Projects Provide Energy to County...

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

    Efficiency and Conservation Block Grant to install a solar-powered entrance sign and solar panels on the roof to reduce energy costs by approximately 4,000 a year. Learn more. ...

  6. Assuring Solar Modules Will Last for Decades - News Feature ...

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

    advancing huge sums of money to two solar projects that had eleventh-hour problems with solar panel reliability. The bank assembled a team to set rules for fixing the problems...

  7. Solar and Energy Efficiency Justice | Department of Energy

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

    and Energy Efficiency Justice Solar and Energy Efficiency Justice June 24, 2010 - 3:00pm Addthis The roof of the justice center where a solar panel array will be installed to power ...

  8. 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.

  9. Union Training Future Electricians in Solar Power

    Office of Energy Efficiency and Renewable Energy (EERE)

    Electricians in Indiana believe solar power is the future, and they are preparing for it. The International Brotherhood of Electrical Workers Local 725 (IBEW 725) in Terre Haute, Ind., purchased 60 solar panels and plans to train its members in solar installation.

  10. MUNI Ways and Structures Building Integrated Solar Membrane Project

    SciTech Connect (OSTI)

    Smith, Randall

    2014-07-03

    The initial goal of the MUNI Ways and Structures Building Integrated Solar Membrane Installation Project was for the City and County of San Francisco (CCSF) to gain experience using the integrated higher efficiency solar photovoltaic (PV) single-ply membrane product, as it differs from the conventional, low efficiency, thin-film PV products, to determine the feasibility of success of larger deployment. As several of CCSF’s municipal rooftops are constrained with respect to weight restrictions, staff of the Energy Generation Group of the San Francisco Public Utilities Commission (SFPUC) proposed to install a solar PV system using single-ply membrane The installation of the 100 kW (DC-STC) lightweight photo voltaic (PV) system at the MUNI Ways and Structures Center (700 Pennsylvania Ave., San Francisco) is a continuation of the commitment of the City and County of San Francisco (CCSF) to increase the pace of municipal solar development, and serve its municipal facilities with clean renewable energy. The fourteen (14) solar photovoltaic systems that have already been installed at CCSF municipal facilities are assisting in the reduction of fossil-fuel use, and reduction of greenhouse gases from fossil combustion. The MUNI Ways & Structures Center roof has a relatively low weight-bearing capacity (3.25 pounds per square foot) and use of traditional crystalline panels was therefore rejected. Consequently it was decided to use the best available highest efficiency Building-Integrated PV (BIPV) technology, with consideration for reliability and experience of the manufacturer which can meet the low weight-bearing capacity criteria. The original goal of the project was to provide an opportunity to monitor the results of the BIPV technology and compare these results to other City and County of San Francisco installed PV systems. The MUNI Ways and Structures Center was acquired from the Cookson Doors Company, which had run the Center for many decades. The building was renovated in 1998, but the existing roof had not been designed to carry a large load. Due to this fact, a complete roofing and structural analysis had to be performed to match the available roof loading to the existing and/or new solar PV technology, and BIPV was considered an excellent solution for this structure with the roof weight limitations. The solar BIPV system on the large roof area was estimated to provide about 25% of the total facility load with an average of 52,560 kWh per month. In order to accomplish the goals of the project, the following steps were performed: 1. SFPUC and consultants evaluated the structural capability of the facility roof, with recommendations for improvements necessary to accommodate the solar PV system and determine the suitable size of the system in kilowatts. The electrical room and switchgear were evaluated for any improvements necessary and to identify any constraints that might impede the installation of necessary inverters, transformers or meters. 2. Development of a design-build Request for Proposal (RFP) to identify the specifications for the solar PV system, and to include SFPUC technical specifications, equipment warranties and performance warranties. Due to potential labor issues in the local solar industry, SFPUC adjusted the terms of the RFP to more clearly define scope of work between electricians, roofers and laborers. 3. Design phase of project included electrical design drawings, calculations and other construction documents to support three submittals: 50% (preliminary design), 90% (detailed design) and 100% (Department of Building Inspection permit approved). 4. Installation of solar photovoltaic panels, completion of conduit and wiring work, connection of inverters, isolation switches, meters and Data Acquisition System by Contractor (Department of Public Works). 5. Commissioning of system, including all necessary tests to make the PV system fully functional and operational at its rated capacity of 100 kW (DC-STC). Following completion of these steps, the solar PV system was installed and fully integrated by late October 2013. The interconnection with PG&E utility grid was completed and the system began generating power on November 21, 2013. The projected annual energy generation for the system is estimated at 127,120 kWh/year.

  11. Federal Technical Capability Panel

    Energy Savers [EERE]

    Updated: April 2015 1 U. S. Department of Energy and National Nuclear Security Administration Federal Technical Capability Panel Organization Name Telephone Fax E-Mail FTCP CHAIR Chair (DOE/NTC) Karen L. Boardman (505) 845-6444 (505) 845-6079 kboardman@ntc.doe.gov FTCP Deputy Dave Chaney (505) 845-4300 (505) 845-4879 david.chaney@nnsa.doe.gov FTCP Technical Standards Mgr. Jeanette Yarrington (301) 903-7030 (301) 903-3445 Jeanette.Yarrington@hq.doe.gov FTCP Program Coordinator Jeannie Lozoya

  12. Photovoltaic panel clamp

    DOE Patents [OSTI]

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

    2012-06-05

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

  13. Photovoltaic panel clamp

    DOE Patents [OSTI]

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

    2013-03-19

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

  14. Boston, Massachusetts: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of Boston, MA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given. The City of Boston and its Solar America Cities program, Solar Boston, are helping to debunk the myth that solar energy is only feasible in the southern latitudes. Boston has some of the highest energy prices in the country and will likely be one of the first locations where solar power achieves grid parity with conventional energy technologies. Solar Boston is facilitating the rapid development of solar energy projects and infrastructure in the short-term, and is preparing for the rapid market growth that is expected with the imminent arrival of grid parity over the long-term. Solar Boston developed the strategy for achieving Mayor Menino's goal of installing 25 MW of solar energy throughout Boston by 2015. Through Solar Boston, the city has developed a strategy for the installation of solar technology throughout Boston, including mapping feasible locations, preparing a permitting guide, and planning the citywide bulk purchase, financing, and installation of solar technology. The city has also worked with local organizations to maximize Boston's participation in state incentive programs and innovative financing initiatives. The resulting accomplishments include the following: (1) Created an online map of current local renewable energy projects with a tool to allow building owners to calculate their rooftop solar potential. The map is currently live at http://gis.cityofboston.gov/solarboston/. (2) Supported the city's Green Affordable Housing Program (GAHP), in partnership with the Department of Neighborhood Development (DND). Under GAHP, the city is installing more than 150 kW of PV on 200 units of affordable housing. DND requires that all new city-funded affordable housing be LEED silver certified and built solar-ready. (3) Defined solar's role in emergency preparedness with the Boston Mayor's Office of Emergency Preparedness. (4) Worked with local organizations to maximize Boston's participation in state incentive programs and innovative financing mechanisms. Solar Boston partners include DOE, MTC, local utilities and unions, an anonymous foundation, and a broad range of local, regional, and national clean-energy stakeholders. Solar Boston kicked off its partner program on January 10, 2008, sponsoring a workshop on 'Thinking BIG about Boston's Solar Energy Future,' to discuss how state, utility, and municipal programs can work together. Presentations were given by Solar Boston, Keyspan/National Grid, NSTAR, and MTC.

  15. Microgap flat panel display

    DOE Patents [OSTI]

    Wuest, Craig R.

    1998-01-01

    A microgap flat panel display which includes a thin gas-filled display tube that utilizes switched X-Y "pixel" strips to trigger electron avalanches and activate a phosphor at a given location on a display screen. The panel utilizes the principal of electron multiplication in a gas subjected to a high electric field to provide sufficient electron current to activate standard luminescent phosphors located on an anode. The X-Y conductive strips of a few micron widths may for example, be deposited on opposite sides of a thin insulating substrate, or on one side of the adjacent substrates and function as a cathode. The X-Y strips are separated from the anode by a gap filled with a suitable gas. Electrical bias is selectively switched onto X and Y strips to activate a "pixel" in the region where these strips overlap. A small amount of a long-lived radioisotope is used to initiate an electron avalanche in the overlap region when bias is applied. The avalanche travels through the gas filled gap and activates a luminescent phosphor of a selected color. The bias is adjusted to give a proportional electron multiplication to control brightness for given pixel.

  16. Microgap flat panel display

    DOE Patents [OSTI]

    Wuest, C.R.

    1998-12-08

    A microgap flat panel display is disclosed which includes a thin gas-filled display tube that utilizes switched X-Y ``pixel`` strips to trigger electron avalanches and activate a phosphor at a given location on a display screen. The panel utilizes the principal of electron multiplication in a gas subjected to a high electric field to provide sufficient electron current to activate standard luminescent phosphors located on an anode. The X-Y conductive strips of a few micron widths may for example, be deposited on opposite sides of a thin insulating substrate, or on one side of the adjacent substrates and function as a cathode. The X-Y strips are separated from the anode by a gap filled with a suitable gas. Electrical bias is selectively switched onto X and Y strips to activate a ``pixel`` in the region where these strips overlap. A small amount of a long-lived radioisotope is used to initiate an electron avalanche in the overlap region when bias is applied. The avalanche travels through the gas filled gap and activates a luminescent phosphor of a selected color. The bias is adjusted to give a proportional electron multiplication to control brightness for given pixel. 6 figs.

  17. WIPP_Panel_7_Approved

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

    Panel 7 Certified and Ready for Waste Disposal CARLSBAD, N.M., August 1, 2013 - In mid-July 2013, the New Mexico Environment Department (NMED) approved the use of Panel 7 for disposal of defense- related transuranic (TRU) waste at the Department of Energy (DOE) Waste Isolation Pilot Plant (WIPP). Approval by NMED for each underground waste disposal panel prior to use is required under the WIPP Hazardous Waste Facility Permit (Permit). A panel consists of seven waste disposal rooms and each room

  18. Thermal insulations using vacuum panels

    DOE Patents [OSTI]

    Glicksman, Leon R.; Burke, Melissa S.

    1991-07-16

    Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.

  19. Garland Power and Light Solar Rebate Program

    Broader source: Energy.gov [DOE]

    A utility bill credit is available to encourage Garland Power and Light (GP&L) customers to install solar photovoltaic panels that meet the minimum requirements of the program. Please check the...

  20. Solar Array Ventures Inc | Open Energy Information

    Open Energy Info (EERE)

    Array Ventures Inc Jump to: navigation, search Name: Solar Array Ventures Inc Place: Austin, Texas Product: Texas-based start-up thin film PV panel maker, which plans to develop...

  1. Lightweight 'solar cloth' photovoltaics have flexible future...

    Open Energy Info (EERE)

    content Printed decorative solar panels could become part of our homes and offices Hello, I provide user supp... The top one on this page: htt... Can you send the specific...

  2. Baltimore Vet Cuts Energy Bills With Solar

    Broader source: Energy.gov [DOE]

    Baltimore resident and disabled veteran Paul Bennett shares his experience utilizing state and federal grants and tax credits to install solar panels on his historic row home and cut energy costs.

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

    SciTech Connect (OSTI)

    Denholm, P.; Drury, E.; Margolis, R.

    2009-09-01

    The Solar Deployment System (SolarDS) model is a bottom-up, market penetration model that simulates the potential adoption of photovoltaics (PV) on residential and commercial rooftops in the continental United States through 2030. NREL developed SolarDS to examine the market competitiveness of PV based on regional solar resources, capital costs, electricity prices, utility rate structures, and federal and local incentives. The model uses the projected financial performance of PV systems to simulate PV adoption for building types and regions then aggregates adoption to state and national levels. The main components of SolarDS include a PV performance simulator, a PV annual revenue calculator, a PV financial performance calculator, a PV market share calculator, and a regional aggregator. The model simulates a variety of installed PV capacity for a range of user-specified input parameters. PV market penetration levels from 15 to 193 GW by 2030 were simulated in preliminary model runs. SolarDS results are primarily driven by three model assumptions: (1) future PV cost reductions, (2) the maximum PV market share assumed for systems with given financial performance, and (3) PV financing parameters and policy-driven assumptions, such as the possible future cost of carbon emissions.

  4. Solar/Wind Feasibility Study at Whitewater Ranch

    Energy Savers [EERE]

    and Energy Efficiency Justice Solar and Energy Efficiency Justice June 24, 2010 - 3:00pm Addthis The roof of the justice center where a solar panel array will be installed to power a solar thermal water-heating system | Photo courtesy of Blount County, Tenn. The roof of the justice center where a solar panel array will be installed to power a solar thermal water-heating system | Photo courtesy of Blount County, Tenn. A solar thermal water-heating system at the justice center in Maryville, Tenn.,

  5. MODIFICATIONS TO THE WIPP PANEL CLOSURE

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

    ... in Panel 4 than in Panel 3. Please compare the waste inventories in Panels 3 and 4 ... to WIPP." This category consists of high-wattage (i.e., high decay heat) payload ...

  6. Panelized wall system with foam core insulation

    DOE Patents [OSTI]

    Kosny, Jan; Gaskin, Sally

    2009-10-20

    A wall system includes a plurality of wall members, the wall members having a first metal panel, a second metal panel, and an insulating core between the first panel and the second panel. At least one of the first panel and the second panel include ridge portions. The insulating core can be a foam, such as a polyurethane foam. The foam can include at least one opacifier to improve the k-factor of the foam.

  7. Winners for NREL's 25th Solar and Lithium Ion Car Races | Awards...

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

    The batteries used in the competition are supplied by DOE, and teams purchase authorized solar panels, then design and build the rest of their cars themselves. The competition...

  8. A Good Year for Solar in Phoenix Area | Department of Energy

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

    Phoenix Area Stephen Graff Former Writer & editor for Energy Empowers, EERE Suntech opens solar panel manufacturing plant in Goodyear, Arizona Will create up to 150 jobs by 2013;...

  9. 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.

  10. Designation Memo: Federal Technical Capability Panel Chairperson...

    Energy Savers [EERE]

    Federal Technical Capability Panel Chairperson Designation Memo: Federal Technical Capability Panel Chairperson May 4, 2007, the Deputy Secretary memorandum designating Karen ...

  11. Final project report - CRADA with United Solar Technologies and Pacific Northwest Laboratory (PNL-021): Thin film materials for low-cost high performance solar concentrators

    SciTech Connect (OSTI)

    Martin, P.M.; Affinito, J.D.; Gross, M.E.; Bennett, W.D.

    1995-03-01

    The objectives of this project were as follows: To develop and evaluate promising low-cost dielectric and polymer-protected thin-film reflective metal coatings to be applied to preformed continuously-curved solar reflector panels to enhance their solar reflectance, and to demonstrate protected solar reflective coatings on preformed solar concentrator panels. The opportunity for this project arose from a search by United Solar Technologies (UST) for organizations and facilities capable of applying reflective coatings to large preformed panels. PNL was identified as being uniquely qualified to participate in this collaborative project.

  12. Exascale Workshop Panel Report Meeting

    SciTech Connect (OSTI)

    Khaleel, Mohammad A.

    2010-07-01

    The Exascale Review Panel consists of 12 scientists and engineers with experience in various aspects of high-performance computing and its application, development, and management. The Panel hear presentations by several representatives of the workshops and town meetings convened over the past few years to examine the need for exascale computation capability and the justification for a U.S. Department of Energy (DOE) program to develop such capability. This report summarizes information provided by the presenters and substantial written reports to the Panel in advance of the meeting in Washington D.C. on January 19-20, 2010. The report also summarizes the Panel's conclusions with regard to the justification of a DOE-led exascale initiative.

  13. Blue Ribbon Panel Recommendations Report

    Broader source: Energy.gov [DOE]

    The Department of Energy's Geothermal Technologies Office (formerly Geothermal Technologies Program) assembled a geothermal Blue Ribbon Panel on March 22-23, 2011 in Albuquerque, New Mexico for a...

  14. Pala Band of Mission Indians – 2015 Project

    Broader source: Energy.gov [DOE]

    The Pala Fire Station Solar Project involves the installation of an approximately 94.8-kilowatt (kW) DC solar system. The system will use a combination of rooftop PV and ground-mounted panels that will be installed on land adjacent to the Pala Indian Reservation’s fire station.

  15. Solar Power for Tanzania

    SciTech Connect (OSTI)

    Chen, Christine; Gerace, Jay; Mehner, Nicole; Mohamed, Sharif; Reiss, Kelly

    1999-12-06

    Condensed list of products and activities: 8 educational posters and 1 informational brochure (all original illustrations and text); a business plan with micro-agreements; corporation created called Tanzanian Power, LLC; business feasibility study developed with the University of Albany; Hampshire College collaborated in project development; research conducted seeking similar projects in underdeveloped countries; Citibank proposal submitted (but rejected); cleaned and sent PV panels to Tanzania; community center built in Tanzania; research and list provided to Robinson for educational TV videos and product catalogs; networked with Chase Manhattan Bank for new solar panels; maintained flow of information among many people (stateside and Tanzania); wrote and sent press releases and other outreach information. Several families purchased panels.

  16. DrexelSolar | Open Energy Information

    Open Energy Info (EERE)

    Zip: 18974 Product: US-based PV rooftop installer. Coordinates: 40.208935, -75.074099 Show Map Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":...

  17. Community Shared Solar with Solarize | Department of Energy

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

    Community Shared Solar with Solarize Community Shared Solar with Solarize

  18. $60 Million to Fund Projects Advancing Concentrating Solar Power |

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

    Department of Energy $60 Million to Fund Projects Advancing Concentrating Solar Power $60 Million to Fund Projects Advancing Concentrating Solar Power November 8, 2011 - 10:34am Addthis A 101 video on concentrating solar panel systems. | Courtesy of the Energy Department Jesse Gary Solar Energy Technologies Program On Tuesday, October 25, the Energy Department's SunShot initiative announced a $60 million funding opportunity (FOA) to advance concentrating solar power in the United States. The

  19. California Member Connects Solar Adoption With Upgrades | Department of

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

    Energy California Member Connects Solar Adoption With Upgrades California Member Connects Solar Adoption With Upgrades Photo of a young man working on solar panels. Studies on the connection between solar adoption and energy upgrades by Better Buildings Residential Network member Center for Sustainable Energy (CSE) in California are helping solar companies realize that partnering with local energy efficiency programs can help turn potential competition into an addition to their business.

  20. SunShot Funding Spurs Standardized Testing for “Smart” Solar Inverters

    Broader source: Energy.gov [DOE]

    Solar inverters are one of the most important components of a solar energy system. These power electronic devices convert the direct current produced by photovoltaic panels into alternating current...

  1. Solar power prices are dropping fast, NREL says | OpenEI Community

    Open Energy Info (EERE)

    Solar power prices are dropping fast, NREL says Home > Groups > Buildings Dc's picture Submitted by Dc(266) Contributor 21 October, 2014 - 16:03 The price of solar power panels...

  2. Oglala Lakota College gets Hands-On Training for Off-Grid Solar...

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

    Train-the-Trainers program in the Rocky Mountain region take part in a roof-mount solar panel install lab exercise at Solar Energy International's PV Lab Yard in Paonia,...

  3. Thermal and Optical Properties of Low-E Storm Windows and Panels

    SciTech Connect (OSTI)

    Culp, Thomas D.; Widder, Sarah H.; Cort, Katherine A.

    2015-07-17

    Installing low-emissivity (low-E) storm windows and panels over existing windows has been identified as a cost-effective new approach for improving the energy efficiency of existing buildings where window replacement is impractical or too expensive. As such, it is desirable to characterize the key energy performance properties of low-E storm windows and panels when installed over different types of existing primary windows. this paper presents the representative U-factors, solar heat gain coefficients (SGHCs) and visible transmittance properties of the combined assemblies of various storm windows and panel types installed over different primary windows.

  4. Solar Power Finance & Investment Summit 2016

    Broader source: Energy.gov [DOE]

    The Solar Power Finance & Investment Summit will provide an outstanding range of insight and perspectives on how the ITC extension will transform the solar industry. In interactive panels, the industry's leading figures will share their views on the momentous strategic trends that will shape the industry and provide the latest market intelligence on the financing landscape.

  5. Everything You Wanted to Know About Solar Water Heating Systems |

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

    Department of Energy Everything You Wanted to Know About Solar Water Heating Systems Everything You Wanted to Know About Solar Water Heating Systems October 7, 2014 - 2:39pm Q&A What do you want to know about solar at home? Tell Us Addthis Solar panels heat water that is delivered to a storage tank. | Photo courtesy of David Springer, National Renewable Energy Laboratory Solar panels heat water that is delivered to a storage tank. | Photo courtesy of David Springer, National Renewable

  6. Former Construction Worker Finds New Career in Solar | Department of Energy

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

    Former Construction Worker Finds New Career in Solar Former Construction Worker Finds New Career in Solar August 25, 2010 - 4:00pm Addthis Eco Technologies, Inc., hired eleven workers to install these solar panels at the Hillsborough County judicial center. | Photo courtesy of Hillsborough County Eco Technologies, Inc., hired eleven workers to install these solar panels at the Hillsborough County judicial center. | Photo courtesy of Hillsborough County Kevin Craft After Eco Technologies, Inc.,

  7. Wood panel earth shelter construction

    SciTech Connect (OSTI)

    Berg, J.R.; Loveless, J.G.; Senkow, W.

    1986-05-27

    An earth sheltered building is described including an arch structure, the structure including footings, a floor extending between the footings and arch means extending between the footings and having a base having lower ends on the footings for defining an enclosure which is covered with earth and open at opposite ends. The arch structure consists of: joined, curved wooden panel sections arranged in tandem in adjacent rows with more than two panel sections in a row, each of the sections including circumferentially extending wooden side members; wooden sheathing sections overlying the top skins of panel sections, the sheathing including a plurality of plywood sheets lapped over the joints between the panel sections and treated with a preservative; an adhesive joining the panel sections together within each row and to adjacent rows; waterproofing means on the sheathing for waterproofing the exterior surface of the arch means; connecting means engaging the base of the arch means at the footings and within the floor for tying the base together at its lower ends; and end walls and fastener means for joining the end walls to lateral edges of the arch means, the end walls dimensioned to extend above the arch means to retain earth placed on the arch means.

  8. Next Generation Rooftop Unit

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

    ... Flexible Research Platform - March 2014 DLL Hardware-based HPDMModelica model library to support RTU design, building control strategy development, fault diagnosis, etc.

  9. Rooftop Unit Network Project

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

    ... platform or in the Cloud * Embedded automated diagnostics and advanced controls in the RTU platform and the controller * Applications running in the Cloud in cases where RTU ...

  10. Rooftop package unit diagnostician

    DOE Patents [OSTI]

    Chassin, David P [Pasco, WA; Pratt, Robert G [Kennewick, WA; Reid, Larry Dean [Benton City, WA

    2004-08-17

    A diagnostic system for an HVAC system includes a number of sensors used to measure the operation of the HVAC system. Sensor readings are measured by timing the delay between when a strobe signal is sent to a sensor and when an interrupt signal from the sensor is received. A device driver used to measure the sensor readings stores the sensor readings in pseudo-character device files, which are universally accessible by different subsystems of the diagnostic system. Based on the readings from these sensors, this diagnostic system is able to determine the operational status of the HVAC system and if an economizer in the HVAC system is operating properly.

  11. Hydronic rooftop cooling systems

    DOE Patents [OSTI]

    Bourne, Richard C.; Lee, Brian Eric; Berman, Mark J.

    2008-01-29

    A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.

  12. Rooftop Unit Campaign

    Broader source: Energy.gov [DOE]

    Commercial Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review

  13. Rooftop Unit Campaign

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

    ... was completed, including components for financing, M&V, and marketing * Key industry partners reviewed the plan, including CEE, RILA, ASHRAE, BOMA International and other key ...

  14. Next Generation Rooftop Unit

    Broader source: Energy.gov [DOE]

    Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: Trane Company, Ingersoll Rand Inc. - Davidson, NC

  15. Plasma Panel Based Radiation Detectors

    SciTech Connect (OSTI)

    Friedman, Dr. Peter S.; Varner Jr, Robert L; Ball, Robert; Beene, James R; Ben Moshe, M.; Benhammou, Yan; Chapman, J. Wehrley; Etzion, E; Ferretti, Claudio; Bentefour, E; Levin, Daniel S.; Moshe, M.; Silver, Yiftah; Weaverdyck, Curtis; Zhou, Bing

    2013-01-01

    The plasma panel sensor (PPS) is a gaseous micropattern radiation detector under current development. It has many operational and fabrication principles common to plasma display panels (PDPs). It comprises a dense matrix of small, gas plasma discharge cells within a hermetically sealed panel. As in PDPs, it uses non-reactive, intrinsically radiation-hard materials such as glass substrates, refractory metal electrodes, and mostly inert gas mixtures. We are developing these devices primarily as thin, low-mass detectors with gas gaps from a few hundred microns to a few millimeters. The PPS is a high gain, inherently digital device with the potential for fast response times, fine position resolution (< 50 m RMS) and low cost. In this paper we report here on prototype PPS experimental results in detecting betas, protons and cosmic muons, and we extrapolate on the PPS potential for applications including detection of alphas, heavy-ions at low to medium energy, thermal neutrons and X-rays.

  16. NREL Achieves Solar-Electric Record

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

    NREL Achieves Solar-Electric Record New Technology Could Spur Growth in Photovoltaic Panels For more information contact: Gary Schmitz, 303-275-4050 email: Gary Schmitz Golden, Colo., Apr. 24, 2001 - Researchers at the U.S. Department of Energy's National Renewable Energy Laboratory have surpassed a record for electricity produced by solar cells made from cadmium telluride—a development that could help meet expanding demand for solar systems. The measurement of 16.4 percent efficiency bested

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

    SciTech Connect (OSTI)

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

    2007-06-04

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

  18. Energy 101: Solar PV | Department of Energy

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

    Solar PV Energy 101: Solar PV Addthis Description Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses. Text Version Below is the text version for the Energy 101: Solar PV video. The video opens with "Energy 101: Solar PV." This is followed by a timelapse shot of a city skyline as day turns to night. All right, we all know

  19. Integrated Solar Power Converters: Wafer-Level Sub-Module Integrated DC/DC Converter

    SciTech Connect (OSTI)

    2012-02-09

    Solar ADEPT Project: CU-Boulder is developing advanced power conversion components that can be integrated into individual solar panels to improve energy yields. The solar energy that is absorbed and collected by a solar panel is converted into useable energy for the grid through an electronic component called an inverter. Many large, conventional solar energy systems use one, central inverter to convert energy. CU-Boulder is integrating smaller, microinverters into individual solar panels to improve the efficiency of energy collection. The University’s microinverters rely on electrical components that direct energy at high speeds and ensure that minimal energy is lost during the conversion process—improving the overall efficiency of the power conversion process. CU-Boulder is designing its power conversion devices for use on any type of solar panel.

  20. 2005 the North American Solar Challenge

    SciTech Connect (OSTI)

    Dan Eberle

    2008-12-22

    In July 2005 the North American Solar Challenge (NASC) featured university built solar powered cars ran across the United States into Canada. The competition began in Austin, Texas with stops in Weatherford, Texas; Broken Arrow, Oklahoma; Topeka, Kansas; Omaha, Nebraska; Sioux Falls, South Dakota, Fargo, North Dakota; Winnipeg, Manitoba; Brandon, Manitoba; Regina, Saskatchewan; Medicine Hat, Alberta; mainly following U.S. Highway 75 and Canadian Highway 1 to the finish line in Calgary, Alberta, Canada, for a total distance of 2,500 miles. NASC major sponsors include the U.S. Department of Energy (DOE), Natural Resources Canada and DOEs National Renewable Energy Laboratory. The event is designed to inspire young people to pursue careers in science and engineering. NASCs predecessors, the American Solar Challenge and Sunrayce, generally have been held every two years since 1990. With each race, the solar cars travel faster and further with greater reliability. The NASC promotes: -Renewable energy technologies (specifically photovoltaic or solar cells) -Educational excellence in science, engineering and mathematics -Creative integration of technical and scientific expertise across a wide-range of disciplines -Hands-on experience for students and engineers to develop and demonstrate their technical and creative abilities. Safety is the first priority for the NASC. Each team put its car through grueling qualifying and technical inspections. Teams that failed to meet the requirements were not allowed participate. During the race, each team was escorted by lead and chase vehicles sporting rooftop hazard flashers. An official observer accompanied each solar car team to keep it alert to any safety issues.

  1. NREL: Learning - Solar Energy Basics

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

    Energy Basics Photo of a solar electric system in Colorado with snow-covered mountain peaks in the background. Solar panels installed on a home in Colorado. Solar is the Latin word for sun-a powerful source of energy that can be used to heat, cool, and light our homes and businesses. That's because more energy from the sun falls on the earth in one hour than is used by everyone in the world in one year. A variety of technologies convert sunlight to usable energy for buildings. The most commonly

  2. Peg supported thermal insulation panel

    DOE Patents [OSTI]

    Nowobilski, J.J.; Owens, W.J.

    1985-04-30

    A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprises high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure. 2 figs.

  3. Peg supported thermal insulation panel

    DOE Patents [OSTI]

    Nowobilski, Jeffert J.; Owens, William J.

    1985-01-01

    A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprising high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure.

  4. Internal absorber solar collector

    DOE Patents [OSTI]

    Sletten, Carlyle J.; Herskovitz, Sheldon B.; Holt, F. S.; Sletten, E. J.

    1981-01-01

    Thin solar collecting panels are described made from arrays of small rod collectors consisting of a refracting dielectric rod lens with an absorber imbedded within it and a reflecting mirror coated on the back side of the dielectric rod. Non-tracking collector panels on vertical walls or roof tops receive approximately 90% of solar radiation within an acceptance zone 60.degree. in elevation angle by 120.degree. or more in the azimuth sectors with a collector concentration ratio of approximately 3.0. Miniaturized construction of the circular dielectric rods with internal absorbers reduces the weight per area of glass, plastic and metal used in the collector panels. No external parts or insulation are needed as heat losses are low due to partial vacuum or low conductivity gas surrounding heated portions of the collector. The miniature internal absorbers are generally made of solid copper with black selective surface and the collected solar heat is extracted at the collector ends by thermal conductivity along the absorber rods. Heat is removed from end fittings by use of liquid circulants. Several alternate constructions are provided for simplifying collector panel fabrication and for preventing the thermal expansion and contraction of the heated absorber or circulant tubes from damaging vacuum seals. In a modified version of the internal absorber collector, oil with temperature dependent viscosity is pumped through a segmented absorber which is now composed of closely spaced insulated metal tubes. In this way the circulant is automatically diverted through heated portions of the absorber giving higher collector concentration ratios than theoretically possible for an unsegmented absorber.

  5. Seismic Lessons-Learned Panel Meetings | Department of Energy

    Energy Savers [EERE]

    Lessons-Learned Panel Meetings Seismic Lessons-Learned Panel Meetings The Chief of Nuclear Security (CNS) maintains a panel of experts known as the Seismic Lessons-Learned Panel, which meets periodically to discuss seismic issues impacting DOE facilities. September 2008 Seismic Lessons-Learned panel Meeting March 2009 Seismic Lessons-Learned panel Meeting October 2009 Seismic Lessons-Learned panel Meeting May 2010 Seismic Lessons-Learned panel Meeting November 2012 Seismic Lessons-Learned panel

  6. Solar Decathlon Team Leading the Way Toward Sustainable Living...

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

    ... In the following days, the rest of the house can be assembled by members of the community. The home's solar panels can be directed for appropriate sunlight angles - generating ...

  7. Texas Gas Service- Residential Solar Water Heating Rebate Program

    Broader source: Energy.gov [DOE]

    Only active systems with panels (or collectors) that are certified OG-100 by the Solar Rating Certification Corporation (SRCC) qualify for this rebate. Work must be completed by a licensed contra...

  8. White House Spotlights Solar Innovation as Summit Registration...

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

    to greater solar deployment. At this session, pre-selected participants will have the opportunity to make five-minute business pitch presentations to an expert panel of judges ...

  9. EECBG Success Story: Historic Virginia Market Powered by Solar Energy

    Broader source: Energy.gov [DOE]

    The historic building where area farmers sell produce straight from the field to consumers is now home to Danville, Virg.’s first renewable energy project — a 154-panel solar energy system. Learn more.

  10. Solar and Wind Powering Wyoming Home | Department of Energy

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

    energy, but when faced with a 100,000 price tag to get connected to the grid, he had ... 12 solar panels on his front lawn and a wind turbine in the backyard."I had no involvement ...

  11. Sandia Energy - Planting the "SEEDS" of Solar Technology in the...

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

    the model. We have a cycle where we use the model to test and generate hypotheses about solar panel purchases, but then we test these hypotheses through experiments to improve...

  12. EECBG Success Story: Historic Virginia Market Powered by Solar...

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

    to consumers is now home to Danville, Virg.'s first renewable energy project - a 154-panel solar energy system. Learn more. Addthis Related Articles Tecumseh is installing 95...

  13. Structure of All-Polymer Solar Cells Impedes Efficiency

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

    technology that will help realize the intrinsic potential of these materials. Solar Panels To Go Photovoltaic cells are a key component of most visions of a clean-energy...

  14. Invisible Solar Energy Collection | OpenEI Community

    Open Energy Info (EERE)

    content Printed decorative solar panels could become part of our homes and offices Hello, I provide user supp... The top one on this page: htt... Can you send the specific...

  15. Police Station Triples Solar Power – and Savings

    Broader source: Energy.gov [DOE]

    The Henderson, Nevada, police department is going above and beyond the call of duty by tripling the size of its solar panel system on its LEED-certified station, saving the city thousands of dollars in energy costs.

  16. Super Bowl of Energy: Solar Smashes Records | Department of Energy

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

    Addthis MetLife Stadium, the site of yesterday's Super Bowl, features a ring of 1,350 solar panels that can generate 350,000 kilowatt hours of electricity annually. The number of ...

  17. National Clean Energy Business Plan Competition: Unified Solar Wins at MIT

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

    Clean Energy Prize | Department of Energy Unified Solar Wins at MIT Clean Energy Prize National Clean Energy Business Plan Competition: Unified Solar Wins at MIT Clean Energy Prize May 2, 2014 - 11:01am Addthis Unified Solar's integrated circuit solution helps reduce energy loss for solar panels. The student team from Massachusetts Institute of Technology won the MIT Clean Energy Prize earlier this week. | Photo courtesy of Unified Solar Unified Solar's integrated circuit solution helps

  18. Geothermal Technologies Program Blue Ribbon Panel Recommendations

    Broader source: Energy.gov [DOE]

    This report describes the recommendations of the Geothermal Blue Ribbon Panel, a panel of geothermal experts assembled in March 2011 for a discussion on the future of geothermal energy in the U.S.

  19. MINUTES FROM SEISMIC LESSONS-LEARNED PANEL

    Office of Environmental Management (EM)

    MAY 11, 2010 Background The Chief of Nuclear Safety (CNS) hosted the sixth meeting of the seismic lessons- learned panel at the DOE Forrestal Building on May 11, 2010. This panel ...

  20. REPOSITORY RECONFIGURATION OF PANELS 9 AND 10

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

    the volume of each panel and that the total final volume cannot exceed repository limits. ... pressure drop measured across filled panel entries was 84 milli-inches water gage and ...

  1. Advisory Panels | Stanford Synchrotron Radiation Lightsource

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

    SAC Website SSRL Proposal Review Panel (PRP) Access to SSRL beam lines is granted through proposals that are peer-reviewed and rated by the SSRL Proposal Review Panel (PRP). The ...

  2. SOLAR PUMPED LASER MICROTHRUSTER

    SciTech Connect (OSTI)

    Rubenchik, A M; Beach, R; Dawson, J; Siders, C W

    2010-02-05

    The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

  3. Solar Pumped Laser Microthruster

    SciTech Connect (OSTI)

    Rubenchik, A. M.; Beach, R.; Dawson, J.; Siders, C. W.

    2010-10-08

    The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

  4. Total System Performance Assessment Peer Review Panel

    Broader source: Energy.gov [DOE]

    Total System Performance Assessment (TSPA) Peer Review Panel for predicting the performance of a repository at Yucca Mountain.

  5. Toward integrated PV panels and power electronics using printing technologies

    SciTech Connect (OSTI)

    Ababei, Cristinel; Yuvarajan, Subbaraya; Schulz, Douglas L.

    2010-07-15

    In this paper, we review the latest developments in the area of printing technologies with an emphasis on the fabrication of control-embedded photovoltaics (PV) with on-board active and passive devices. We also review the use of power converters and maximum power point tracking (MPPT) circuits with PV panels. Our focus is on the investigation of the simplest implementations of such circuits in view of their integration with solar cells using printing technologies. We see this concept as potentially enabling toward further cost reduction. Besides a discussion as to feasibility, we shall also present some projections and guidelines toward possible integration. (author)

  6. VP 100: Growth in solar means growth in Ohio | Department of Energy

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

    Growth in solar means growth in Ohio VP 100: Growth in solar means growth in Ohio October 6, 2010 - 10:57am Addthis DuPont is betting on major growth in the market for solar energy -- and therefore for its Tedlar film, a durable backing for silicon solar panels. | Photo Courtesy of DuPont DuPont is betting on major growth in the market for solar energy -- and therefore for its Tedlar film, a durable backing for silicon solar panels. | Photo Courtesy of DuPont Lorelei Laird Writer, Energy

  7. 2D Monolayers Could Yield Thinnest Solar Cells Ever

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

    Thinnest solar cells ever 2D Monolayers Could Yield Thinnest Solar Cells Ever October 21, 2013 Contact: Kathy Kincade, +1 510 495 2124, kkincade@lbl.gov Efforts to improve solar cells have historically focused on improving energy conversion efficiencies and lowering manufacturing costs. But new computer simulations have shown how using a different type of material could yield thinner, more lightweight solar panels that provide power densities - watts per kilogram of material - orders of

  8. 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

  9. EERE Success Story-SunShot Incubator Awardee Helps Companies Offer

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

    Discount Solar as Employee Perk | Department of Energy Incubator Awardee Helps Companies Offer Discount Solar as Employee Perk EERE Success Story-SunShot Incubator Awardee Helps Companies Offer Discount Solar as Employee Perk March 31, 2015 - 10:18am Addthis Ali Ahmed, senior manager of global energy and sustainability at Cisco Systems, installed the first panels of the Solar Community initiative on his Cleveland, Ohio rooftop. Ali Ahmed, senior manager of global energy and sustainability at

  10. Solar Newsletter

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

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

  11. WM2015 Conference Panel Report

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

    016: Lessons Learned and Return to Operations Following the 2014 Operational Incidents at WIPP Session Co-Chairs: Joe Franco, US DOE, Carlsbad Field Office Robert McQuinn, Nuclear Waste Partnership, LLC Panel Reporter: Roger Nelson, US DOE, Carlsbad Field Office Panelists:  Sean Dunagan, Recovery Manager, Carlsbad Field Office, US DOE  Mark Senderling, Headquarters Recovery Manager, US DOE - EM  Jim Blankenhorn, Recovery Manager, Nuclear Waste Partnership  J.R. Stroble, TRU Sites and

  12. Tracking Solar Energy Conersion Unit Adapted For Field Assembly

    DOE Patents [OSTI]

    Kaminar, Neil R.; Ross, III, James G.; Carrie, Peter J.

    2000-02-01

    A modular solar energy collector having elongated V-shaped side walls formed by a pair of coplanar panels for each side wall. The upper panels, occupying most of the wall area are diffusely reflective, but the lower panels are specularly reflective. A Fresnel lens, having a snap fit relation to the side walls focuses some light on the lower specularly reflective panels which direct light to the solar cells at the base of the V-shaped walls. A heat sink provides support for the two panels with two opposed, upwardly extending wings terminating in opposed linear clips located near the lengthwise seam of the coplanar panels, each clip holding two coplanar panels in parallel alignment. The clips not only provide support for the panels, but also transfer heat to the remainder of the heat sink. The clips are shaped so that edges of the panels engage each clip by a snap fit, outside of the clip in one embodiment and inside of the clip in another embodiment. End caps are also formed with structures which snap to the wall panels. Since all junctions of components snap together, the collector of the present invention is easily assembled without specialized tools. Using side walls which are only partly specularly reflective permits a large angle of acceptance, yet provides an economical wall design because the entire wall need not be specularly reflective.

  13. Immersible solar heater for fluids

    DOE Patents [OSTI]

    Kronberg, James W.

    1995-01-01

    An immersible solar heater comprising a light-absorbing panel attached to a frame for absorbing heat energy from the light and transferring the absorbed heat energy directly to the fluid in which the heater is immersed. The heater can be used to heat a swimming pool, for example, and is held in position and at a preselected angle by a system of floats, weights and tethers so that the panel can operate efficiently. A skid can be used in one embodiment to prevent lateral movement of the heater along the bottom of the pool. Alternative embodiments include different arrangements of the weights, floats and tethers and methods for making the heater.

  14. The costs of solar photovoltaic (PV) panels and system

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

    3573 M

  15. Glass Coating Makes Solar Panels More Efficient | Department of Energy

    Energy Savers [EERE]

    Giving Back Through Our Talented STEM Professionals Giving Back Through Our Talented STEM Professionals January 17, 2014 - 4:51pm Addthis Events like Argonne National Laboratory's annual Introduce a Girl to Engineering Day are produced with the volunteer support of the Department of Energy's STEM professionals. Above, Director Dot Harris visits the event in 2013. Events like Argonne National Laboratory's annual Introduce a Girl to Engineering Day are produced with the volunteer support of the

  16. The costs of solar photovoltaic (PV) panels and system

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

    XXXXP

  17. "Increasing Solar Panel Efficiency And Reliability By Evaporative...

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

    Reliability By Evaporative Cooling" Inventors..--.. Lewis Meixler, Charles Gentile, Patricia Hillyer, Dylan Carpe, Jason Wang, Caroline Brooks The efficiency and reliability of ...

  18. Putting Solar Panels to the Test | Department of Energy

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

    created five sites in strategically-selected locations with diverse climates: Albuquerque, New Mexico; Cocoa, Florida; Golden, Colorado; Henderson, Nevada; and Williston, Vermont. ...

  19. Material gain: Research a step toward more efficient solar panels |

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

    for Lithium Ion Batteries (Technical Report) | SciTech Connect Material and Energy Flows in the Production of Cathode and Anode Materials for Lithium Ion Batteries Citation Details In-Document Search Title: Material and Energy Flows in the Production of Cathode and Anode Materials for Lithium Ion Batteries Authors: Dunn, Jennifer B. ; James, Christine ; Gaines, L G ; Gallagher, Kevin Publication Date: 2014-09-30 OSTI Identifier: 1172039 Report Number(s): ANL/ESD-14/10 108520 DOE Contract

  20. EERE Success Story-Arizona: Solar Panels Replace Inefficient...

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

    These projects typically have payback periods under five ... consumption of gasoline, diesel, propane, and electricity. Location Arizona Partners State of Arizona EERE Investment ...

  1. Obama Administration Announces Plans to Install New Solar Panels...

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

    ... Read the full guide (pdf - 6.6 MB). Follow the Department of Energy on Facebook, Twitter, Youtube and Flickr. Follow Secretary Chu on his Facebook page. Media contact(s): (202) ...

  2. Two-axis tracker for solar panels and the like

    DOE Patents [OSTI]

    Liao, Henry H.

    2013-04-16

    A tracker including an outer post having elongated bore and a lower end mounted on a sub-structure, an inner pole rotatably received in the elongated bore, a lower bearing in the bore adjacent a lower end of the outer post and attached thereto to be constrained from lateral movement and mounted on the sub-structure such that a lower end of the inner pole rests on and is supported by the lower bearing, an upper bearing near an upper end of the outer post, a circumferential drive supported on the outer post for rotating the inner pole relative to the outer post, such that substantially a full weight of a load on the inner pole is directly transmitted to the sub-structure and lateral force and torque leverage are placed on a full length of the outer post by way of the upper and lower bearing.

  3. Arizona: Solar Panels Replace Inefficient Fossil Fuel-Powered...

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

    A significant feature of the program is the reduction and partial elimination of trips required (usually by diesel-powered trucks) to refuel andor repair remotely located pumping ...

  4. EECBG Success Story: After 105 Years, Historic City Hall in West Des Moines, Iowa Goes Green

    Broader source: Energy.gov [DOE]

    The city of West Des Moines, Iowa is used funding to renovate the Historic City Hall building located in Valley Junction, including the installation of four geothermal heating wells, a rooftop covered with vegetation, solar panels and permeable pavers to allow stormwater through to the soil below. Learn more.

  5. Project Reports for Pala Band of Mission Indians – 2015 Project

    Broader source: Energy.gov [DOE]

    Under this grant, the Pala Band of Mission Indians plan on building a 94.8-kilowatt (kW) DC solar system on its fire station. The system will use a combination of rooftop PV and ground-mounted panels that will be installed on land adjacent to the Pala Indian Reservation’s fire station.

  6. PV Solar Ready

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

    ... main electrical panel * Design for proper panel and main disconnect ratings on the main electrical panel * Prepare for photovoltaic back-fed circuit breaker in main electrical ...

  7. Supply Curves for Solar PV-Generated Electricity for the United States

    SciTech Connect (OSTI)

    Denholm, P.; Margolis, R.

    2008-11-01

    Energy supply curves attempt to estimate the relationship between the cost of an energy resource and the amount of energy available at or below that cost. In general, an energy supply curve is a series of step functions with each step representing a particular group or category of energy resource. The length of the step indicates how much of that resource is deployable or accessible at a given cost. Energy supply curves have been generated for a number of renewable energy sources including biomass fuels and geothermal, as well as conservation technologies. Generating a supply curve for solar photovoltaics (PV) has particular challenges due to the nature of the resource. The United States has a massive solar resource base -- many orders of magnitude greater than the total consumption of energy. In this report, we examine several possible methods for generating PV supply curves based exclusively on rooftop deployment.

  8. Growth in Solar Means Growth in Ohio | Department of Energy

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

    Growth in Solar Means Growth in Ohio Growth in Solar Means Growth in Ohio October 6, 2010 - 2:26pm Addthis Lorelei Laird Writer, Energy Empowers Editor's Note: Yesterday Secretary Chu announced that solar panels and a solar hot water heater will be added to the White House by the end of next spring. This entry is cross-posted from the Energy Empowers blog and deals with how the continued growth of solar power is not only a boon for industry, but for local economies as well. The solar industry

  9. IBM's New Flat Panel Displays

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

    by J. Stöhr (SSRL), M. Samant (IBM), J. LĂŒning (SSRL) Today's laptop computers utilize flat panel displays where the light transmission from the back to the front of the display is modulated by orientation changes in liquid crystal (LC) molecules. Details are discussed in Ref. 2 below. One of the key steps in the manufacture of the displays is the alignment of the LC molecules in the display. Today this is done by mechanical rubbing of two polymer surfaces and then sandwiching the LC between

  10. United Solar Ovonic LLC Unisolar | Open Energy Information

    Open Energy Info (EERE)

    US-based manufacturer of flexible amorphous silicon PV laminates; the main division of Energy Conversion Devices, aka ECD Ovonics. Leading supplier of flexible PV for rooftop...

  11. Roof aperture system for selective collection and control of solar energy for building heating, cooling and daylighting

    DOE Patents [OSTI]

    Sanders, William J.; Snyder, Marvin K.; Harter, James W.

    1983-01-01

    The amount of building heating, cooling and daylighting is controlled by at least one pair of solar energy passing panels, with each panel of the pair of panels being exposed to a separate direction of sun incidence. A shutter-shade combination is associated with each pair of panels and the shutter is connected to the shade so that rectilinear movement of the shutter causes pivotal movement of the shade.

  12. Roof aperture system for selective collection and control of solar energy for building heating, cooling and daylighting

    SciTech Connect (OSTI)

    Sanders, W.J.; Harter, J.W.; Snyder, M.K.

    1983-12-06

    The amount of building heating, cooling and daylighting is controlled by at least one pair of solar energy passing panels, with each panel of the pair of panels being exposed to a separate direction of sun incidence. A shutter-shade combination is associated with each pair of panels and the shutter is connected to the shade so that rectilinear movement of the shutter causes pivotal movement of the shade.

  13. Walk-In Panels | Department of Energy

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

    Walk-In Panels Walk-In Panels The Department of Energy (DOE) develops standardized data templates for reporting the results of tests conducted in accordance with current DOE test procedures. Templates may be used by third-party laboratories under contract with DOE that conduct testing in support of ENERGY STARÂź verification, DOE rulemakings, and enforcement of the federal energy conservation standards. File Walk-In Panels -- v1.0 More Documents & Publications Metal Halide Lamp Ballasts and

  14. NREL Employee Appointed to Presidential Panel

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

    Employee Appointed to Presidential Panel For more information contact: e:mail: Public Affairs Golden, Colo., April 10, 1997 -- Sam Baldwin, international programs director for the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), has been named to the President's Committee of Advisors on Science and Technology (PCAST) as the staff study director for PCAST's Energy Research and Development Panel. The panel will review current and projected U.S. energy research and

  15. MODIFICATIONS TO THE WIPP PANEL CLOSURE

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

    9 Panel Closure ATTACHMENT 1 NMED COMMENTS ITEM 1 - MODIFICATIONS TO THE WIPP PANEL CLOSURE Page 2 of 29 Panel Closure 1-1: PMR Overview, Section 1, "Revision to the PCS Design" This section needs to explicitly explain which Attachment G1 Appendices are being deleted and which new appendices contain relevant information from old appendices. For example, Appendix B appears to include consolidated relevant information from the previous Appendices B through F; the new Appendix A replaces

  16. Multi-clad black display panel

    DOE Patents [OSTI]

    Veligdan, James T.; Biscardi, Cyrus; Brewster, Calvin

    2002-01-01

    A multi-clad black display panel, and a method of making a multi-clad black display panel, are disclosed, wherein a plurality of waveguides, each of which includes a light-transmissive core placed between an opposing pair of transparent cladding layers and a black layer disposed between transparent cladding layers, are stacked together and sawed at an angle to produce a wedge-shaped optical panel having an inlet face and an outlet face.

  17. Geothermal Technologies Program Blue Ribbon Panel Recommendations

    SciTech Connect (OSTI)

    none,

    2011-06-17

    The Geothermal Technologies Program assembled a geothermal Blue Ribbon Panel on March 22-23, 2011 in Albuquerque, New Mexico for a guided discussion on the future of geothermal energy in the United States and the role of the DOE Program. The Geothermal Blue Ribbon Panel Report captures the discussions and recommendations of the experts. An addendum is available here: http://www.eere.energy.gov/geothermal/pdfs/gtp_blue_ribbon_panel_report_addendum10-2011.pdf

  18. EECBG Success Story: Solar Projects Provide Energy to County Fairgrounds

    Broader source: Energy.gov [DOE]

    Ulster County Fairgrounds in New York is using funding from the Energy Efficiency and Conservation Block Grant to install a solar-powered entrance sign and solar panels on the roof to reduce county energy costs by approximately $4,000 a year. Learn more.

  19. Panel Discussion | OpenEI Community

    Open Energy Info (EERE)

    on the project background and history, status updates, analysis summary and future directions. The day ended with a panel discussion, with members including Lee Webb...

  20. OpenEI Community - Panel Discussion

    Open Energy Info (EERE)

    on the project background and history, status updates, analysis summary and future directions.  The day ended with a panel discussion, with members including Lee...

  1. Presentation to the NSF Review Panel

    Energy Savers [EERE]

    Introduction to Current & Prior Studies of the DOE Laboratories Mark Taylor Susannah Howieson Julian Zhu July 18, 2014 Current Studies * Congressional Advisory Panel on the ...

  2. EERE Success Story-Nationwide: Slashing Red Tape To Speed Solar

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

    Deployment for Homes and Businesses | Department of Energy Slashing Red Tape To Speed Solar Deployment for Homes and Businesses EERE Success Story-Nationwide: Slashing Red Tape To Speed Solar Deployment for Homes and Businesses January 24, 2014 - 12:00am Addthis EERE Success Storyñ€”Nationwide: Slashing Red Tape To Speed Solar Deployment for Homes and Businesses While solar panels, inverters and other hardware are more affordable than ever before (the average cost of solar PV panels has

  3. Solar Glare Hazard Analysis Tool

    Energy Science and Technology Software Center (OSTI)

    2013-04-17

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximummore »energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.« less

  4. Solar Glare Hazard Analysis Tool

    Energy Science and Technology Software Center (OSTI)

    2014-08-25

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximummore »energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.« less

  5. Solar Glare Hazard Analysis Tool

    SciTech Connect (OSTI)

    2014-08-25

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximum energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.

  6. Solar Glare Hazard Analysis Tool

    SciTech Connect (OSTI)

    2013-04-17

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximum energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.

  7. 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...

  8. Solar Power

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

    Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWhsq meter power production potential As the ...

  9. Solar Newsletter

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

    Energy Goes Big: Launching the California Valley Solar Ranch Solar Goes Big: Launching the California Valley Solar Ranch October 31, 2013 - 4:14pm Addthis The California Valley Solar Ranch produces clean, renewable electricity at the scale of traditional power plants. | Photo courtesy of SunPower. The California Valley Solar Ranch produces clean, renewable electricity at the scale of traditional power plants. | Photo courtesy of SunPower. Aerial shot of the California Valley Solar Ranch in

  10. Perovskite solar technology shows quick energy returns | Argonne National

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

    Laboratory Perovskite solar technology shows quick energy returns By Payal Marathe * July 17, 2015 Tweet EmailPrint Solar panels are an investment-not only in terms of money, but also energy. It takes energy to mine, process and purify raw materials, and then to manufacture and install the final product. Silicon-based panels, which dominate the market for solar power, usually need about two years to return this energy investment. But for technology made with perovskites-a class of materials

  11. Solar Decathlon

    Broader source: Energy.gov [DOE]

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

  12. Solar Newsletter

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

    Events, Photovoltaic, Renewable Energy, Research & Capabilities, Solar, Solar Newsletter, SunShot, ... The system will be monitored and tested to collect a range of data ...

  13. Solar Decathlon

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

    ... and workforce development opportunity for ... around the world: Solar Decathlon China 2013, Solar Decathlon ... and two-way power flow for operation of ...

  14. AQUEOUS HOMOGENEOUS REACTORTECHNICAL PANEL REPORT

    SciTech Connect (OSTI)

    Diamond, D.J.; Bajorek, S.; Bakel, A.; Flanagan, G.; Mubayi, V.; Skarda, R.; Staudenmeier, J.; Taiwo, T.; Tonoike, K.; Tripp, C.; Wei, T.; Yarsky, P.

    2010-12-03

    Considerable interest has been expressed for developing a stable U.S. production capacity for medical isotopes and particularly for molybdenum- 99 (99Mo). This is motivated by recent re-ductions in production and supply worldwide. Consistent with U.S. nonproliferation objectives, any new production capability should not use highly enriched uranium fuel or targets. Conse-quently, Aqueous Homogeneous Reactors (AHRs) are under consideration for potential 99Mo production using low-enriched uranium. Although the Nuclear Regulatory Commission (NRC) has guidance to facilitate the licensing process for non-power reactors, that guidance is focused on reactors with fixed, solid fuel and hence, not applicable to an AHR. A panel was convened to study the technical issues associated with normal operation and potential transients and accidents of an AHR that might be designed for isotope production. The panel has produced the requisite AHR licensing guidance for three chapters that exist now for non-power reactor licensing: Reac-tor Description, Reactor Coolant Systems, and Accident Analysis. The guidance is in two parts for each chapter: 1) standard format and content a licensee would use and 2) the standard review plan the NRC staff would use. This guidance takes into account the unique features of an AHR such as the fuel being in solution; the fission product barriers being the vessel and attached systems; the production and release of radiolytic and fission product gases and their impact on operations and their control by a gas management system; and the movement of fuel into and out of the reactor vessel.

  15. Gas pump with movable gas pumping panels

    DOE Patents [OSTI]

    Osher, J.L.

    Apparatus for pumping gas continuously a plurality of articulated panels of getter material, each of which absorbs gases on one side while another of its sides is simultaneously reactivated in a zone isolated by the panels themselves from a working space being pumped.

  16. Diversified Panel Systems: Order (2013-CE-5346)

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE ordered Diversified Panel Systems, Inc. to pay a $8,000 civil penalty after finding Diversified Panel Systems had failed to certify that certain models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

  17. Kingspan Insulated Panels: Order (2013-CE-5353)

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE ordered Kingspan Insulated Panels, Inc. to pay a $8,000 civil penalty after finding Kingspan Insulated Panels had failed to certify that any basic models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

  18. Gas pump with movable gas pumping panels

    DOE Patents [OSTI]

    Osher, John E.

    1984-01-01

    Apparatus for pumping gas continuously a plurality of articulated panels of getter material, each of which absorbs gases on one side while another of its sides is simultaneously reactivated in a zone isolated by the panels themselves from a working space being pumped.

  19. Thin film photovoltaic panel and method

    DOE Patents [OSTI]

    Ackerman, Bruce; Albright, Scot P.; Jordan, John F.

    1991-06-11

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

  20. Third-Generation Solar Cells Using Optical Rectenna - Energy Innovation

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

    Portal Third-Generation Solar Cells Using Optical Rectenna University of Colorado Contact CU About This Technology Publications: PDF Document Publication CU2963B (Rectenna Solar Cells) Marketing Summary (98 KB) Technology Marketing Summary Solar panels are designed as a photovoltaic module. The energy producing aspect of the photovoltaic module has two primary steps. The first is a semiconducting material such as silicon that can absorb the photons from sunlight, knocking electrons from