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1

Sunshot Rooftop Solar Challenge | Department of Energy  

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

Centers Field Sites Power Marketing Administration Other Agencies You are here Home Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar...

2

Rooftop Solar Challenge Award Winners | Department of Energy  

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

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...

3

SunShot Initiative: Rooftop Solar Challenge  

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

Challenge Challenge Team Map Rooftop Solar Challenge II teams are scaling up the nation's most effective approaches to local solar market transformation and soft cost reduction, while driving new innovations that decrease the cost of solar deployment. Find your local team on our map. Image of a map showing the location of Rooftop Solar Challenge II teams. 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 40% and reduced permitting costs by 12% for more than 47 million Americans, cutting hundreds of years of red tape from the process of going solar.

4

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

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

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...

5

SunShot Initiative: Rooftop Solar Challenge I Teams  

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

Rooftop Solar Challenge I Teams Rooftop Solar Challenge I Teams to someone by E-mail Share SunShot Initiative: Rooftop Solar Challenge I Teams on Facebook Tweet about SunShot Initiative: Rooftop Solar Challenge I Teams on Twitter Bookmark SunShot Initiative: Rooftop Solar Challenge I Teams on Google Bookmark SunShot Initiative: Rooftop Solar Challenge I Teams on Delicious Rank SunShot Initiative: Rooftop Solar Challenge I Teams on Digg Find More places to share SunShot Initiative: Rooftop Solar Challenge I Teams on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Balance of Systems Reducing Non-Hardware Costs Lowering Barriers Fostering Growth Rooftop Solar Challenge I Teams The first round of the Rooftop Solar Challenge supported 22 teams working to spur solar power deployment by cutting red tape and improving finance

6

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

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

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...

7

SunShot Initiative: Rooftop Solar Challenge I Teams  

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

Challenge I Teams The first round of the Rooftop Solar Challenge supported 22 teams working to spur solar power deployment by cutting red tape and improving finance options. By...

8

Solar Energy Technologies Program: Rooftop Solar Challenge  

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

cheaper for homeowners and businesses. The Challenge is part of the U.S. Department of Energy (DOE) SunShot Initiative, which seeks to make solar electricity cost competitive...

9

Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun |  

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

Challenge: Empowering Innovators to Reach for the Sun Challenge: Empowering Innovators to Reach for the Sun Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun November 6, 2013 - 8:00am Addthis Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by Sarah Gerrity. Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by Sarah Gerrity. Minh Le Minh Le Program Manager, Solar Program Cyrus Wadia Assistant Director for Clean Energy and Materials R&D, The White House Office of Science and Technology Policy LEARN MORE Stay up to date on the Department's solar energy initiatives by visiting energy.gov/solar. View guidebooks, education curricula and other resources developed

10

Sunshot Rooftop Solar Challenge | Department of Energy  

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

Person Solar Energy Potential Solar Energy Potential Renewable Energy Production By State Renewable Energy Production By State 2009 Total Energy Production by State 2009 Total...

11

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

the solar access of rooftop solar-energy systems, includingthermal collection by rooftop solar-energy equipment. It canthe solar access of rooftop solar-energy systems, including

Levinson, Ronnen

2010-01-01T23:59:59.000Z

12

SunShot Rooftop Challenge Awardees  

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

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

13

Phoenix American Rooftop Solar Technologies | Open Energy Information  

Open Energy Info (EERE)

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

14

Smart Solar Rooftops  

competing with fossil fuels on the energy market, so producing high-efficiency while maintaining a low cost is a major priority for the solar industry.

15

SunShot Rooftop Challenge Awardees | Department of Energy  

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

SunShot Rooftop Challenge Awardees SunShot Rooftop Challenge Awardees SunShot Rooftop Challenge Awardees December 1, 2011 - 11:54am Addthis SUNSHOT ROOFTOP SOLAR CHALLENGE December 1, 2011 Awardee Name Location Population Estimate Award Amount Project Highlights Arizona Governor's Office of Energy Policy City of Flagstaff, City of Phoenix, City of Tucson, Arizona State University's Global Institute of Sustainability, and SmartPower Arizona 2,031,618 $708,992 The Arizona Governor's Office of Energy Policy will identify best practices in finance, permitting, and zoning to move toward voluntary statewide uniformity. The project will drive adoption of an online system in five jurisdictions that allows for over-the-counter/same-day permit review. Broward County

16

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

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

17

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

E-Print Network (OSTI)

the solar access of rooftop solar-energy systems, includingthe solar access of rooftop solar-energy systems, includingof shading on residential rooftop solar access in various

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

18

CREATING A SOLAR CITY Determining the Potential of Solar Rooftop  

E-Print Network (OSTI)

CREATING A SOLAR CITY Determining the Potential of Solar Rooftop Systems in the City of Newark of Solar Rooftop Systems in the City of Newark Final Report Renewable Energy Applications for Delaware-8405 Telefax: (302) 831-3098 Website: http://ceep.udel.edu #12;CREATING A SOLAR CITY Determining the Potential

Delaware, University of

19

SunShot Initiative: Deployable Commercial Rooftop Solar Electric System  

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

Deployable Commercial Rooftop Deployable Commercial Rooftop Solar Electric System to someone by E-mail Share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Facebook Tweet about SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Twitter Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Google Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Delicious Rank SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Digg Find More places to share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Research, Development, & Demonstration Competitive Awards Solar Utility Networks: Replicable Innovations in Solar Energy

20

Southern California Edison's Solar Rooftop Program  

Science Conference Proceedings (OSTI)

SCE’s Solar Rooftop Program is, in many respects, a trailblazing utility-owned distributed PV initiative that other utilities across the country are either emulating or using as a basis for informing their own projects. A review of SCE’s program demonstrates a number of best practices that can be applicable to other similar efforts.

2012-10-24T23:59:59.000Z

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


21

SunShot Rooftop Challenge Awardees | Department of Energy  

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

You are here You are here Home » SunShot Rooftop Challenge Awardees SunShot Rooftop Challenge Awardees SUNSHOT ROOFTOP SOLAR CHALLENGE December 1, 2011 Awardee Name Location Population Estimate Award Amount Project Highlights Arizona Governor's Office of Energy Policy City of Flagstaff, City of Phoenix, City of Tucson, Arizona State University's Global Institute of Sustainability, and SmartPower Arizona 2,031,618 $708,992 The Arizona Governor's Office of Energy Policy will identify best practices in finance, permitting, and zoning to move toward voluntary statewide uniformity. The project will drive adoption of an online system in five jurisdictions that allows for over-the-counter/same-day permit review. Broward County Broward County, Florida Power & Light, Coconut Creek, Dania Beach, Davie, Deerfield Beach, Fort Lauderdale, Hallandale Beach, Hillsboro Beach, Lauderdale-by-the Sea, Miramar, North Lauderdale, Oakland Park, Pompano Beach, Sunrise, and Tamarac Florida (Southeastern) 925,618 $646,367 Broward County will remove local ordinances that create barriers to solar installations and will educate community associations about their obligations under Florida law. The project will also create a unified online system for permitting and interconnection to reduce costs and wait time.

22

Rooftop Solar Potential Distributed Solar Power in NW  

E-Print Network (OSTI)

6/19/2013 1 Rooftop Solar Potential Distributed Solar Power in NW Massoud Jourabchi June 2013 1 in 2012 4 #12;6/19/2013 3 Regional Growth In Solar Energy Consumption Solar consumption both Thermal and PV h b t d i i lhas been on steady increase since early 1990s. From 2000-2010 Solar PV grow

23

Unleashing Rooftop Solar Energy through More Efficient Government |  

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

Unleashing Rooftop Solar Energy through More Efficient Government 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 Program How can I participate? Teams can include large individual cities or metropolitan areas, regional groups of local governments, states, and Indian Tribes. The Department anticipates providing funding for up to 25 awardees. Learn more here: http://www.eere.energy.gov/solarchallenge/ Across the country, the race is on to drive down the cost of solar energy.

24

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

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

Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar July 12, 2010 - 3:51pm Addthis APS will install solar photovoltaic panels like these in Castro Valley, Calif. for a pilot project studying distributed energy in Flagstaff, Ariz. | Photo courtesy of APS APS will install solar photovoltaic panels like these in Castro Valley, Calif. for a pilot project studying distributed energy in Flagstaff, Ariz. | Photo courtesy of APS 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. "Flagstaff is unique electrically," says Eran Mahrer, Director of Renewable

25

Department of Energy Commits Support for Landmark Rooftop Solar Project |  

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

Commits Support for Landmark Rooftop Solar Commits Support for Landmark Rooftop Solar Project Department of Energy Commits Support for Landmark Rooftop Solar Project June 22, 2011 - 12:00am Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment to provide a partial guarantee for a $1.4 billion loan to support Project Amp. This project will support the installation of solar panels on industrial buildings across the country, with the electricity generated from those panels contributing directly to the electrical grid, as opposed to powering the buildings where they are installed. Supported by funding from the 2009 stimulus bill, the solar generation project includes the installation of approximately 733 megawatts (MW) of photovoltaic (PV) solar panels, which is nearly equal to the total

26

California Energy Commission "We have the largest rooftop solar  

E-Print Network (OSTI)

solar system in the nation!" Matt Muniz, P.E. Energy Program Manager Alameda County "With the Energy Commission's Energy Efficiency Financing Program we installed our 1.18 MW solar project at Santa Rita JailLOW INTEREST RATE LOANS AVAILABLE NOW! California Energy Commission "We have the largest rooftop

27

LA Rooftop Solar Project Goes Online in San Fernando Valley | Department of  

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

LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley June 26, 2013 - 4:52pm Addthis Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs LEARN MORE Watch a video on CLEAN LA Solar -- an initiative related to the Los Angeles feed-in tariff program. Read Mayor Antonio Villaraigosa's comments on LA's focus on rooftop solar. With 1 billion square feet of rooftop space and more than 300 days of

28

LA Rooftop Solar Project Goes Online in San Fernando Valley | Department of  

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

LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley June 26, 2013 - 4:52pm Addthis Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs LEARN MORE Watch a video on CLEAN LA Solar -- an initiative related to the Los Angeles feed-in tariff program. Read Mayor Antonio Villaraigosa's comments on LA's focus on rooftop solar. With 1 billion square feet of rooftop space and more than 300 days of

29

Modeling and Analysis of Solar Radiation Potentials on Building Rooftops  

Science Conference Proceedings (OSTI)

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.

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

2012-01-01T23:59:59.000Z

30

Concentrating Solar Power Facilities | Department of Energy  

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

Creating an Energy Innovation Ecosystem Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power...

31

An experimental and computational study of a rooftop-mounted linear fresnel solar thermal concentrator.  

E-Print Network (OSTI)

??This research study describes the thermal performance of a new low-cost rooftop concentrating solar thermal collector (MCT), developed by Chromasun, which uses linear Fresnel reflectors,… (more)

Sultana, Tanzeen

2013-01-01T23:59:59.000Z

32

Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar  

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

Loan Guarantee Would Support Large-Scale Rooftop 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 to be a record expansion of residential rooftop solar power in the United States. Under the SolarStrong Project, SolarCity Corporation will install, own and operate up to 160,000 rooftop solar installations on as many as 124 U.S. military bases in up to 33 states. SolarCity expects the project to fund approximately 750 construction jobs over five years and 28 full time

33

Solar access of residential rooftops in four California cities  

DOE Green Energy (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 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 two to four hours after sunrise and about two to four hours 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 results from shading by trees and buildings in neighboring parcels.

Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin

2010-05-14T23:59:59.000Z

34

Solar access of residential rooftops in four California cities  

Science Conference Proceedings (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 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)

Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin [Heat Island Group, Lawrence Berkeley National Laboratory (United States); Gupta, Smita [California Energy Commission, Sacramento, CA 95814 (United States)

2009-12-15T23:59:59.000Z

35

Solar Energy Potential | Department of Energy  

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

from Existing Non-powered Dams Creating an Energy Innovation Ecosystem Creating an Energy Innovation Ecosystem Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar...

36

Solar access of residential rooftops in four California cities  

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

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...

37

Approximating the Seismic Amplification Effects Experienced by Solar Towers Mounted on the Rooftops of Low-Rise Industrial Buildings.  

E-Print Network (OSTI)

?? This thesis investigates the acceleration amplification experienced by solar towers mounted on the rooftops of low-rise industrial buildings during a seismic event. Specifically, this… (more)

Balla, Peter Luiz

2013-01-01T23:59:59.000Z

38

Sunshot Rooftop Solar Challenge | Department of Energy  

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

Energy Innovation Ecosystem NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

39

Sunshot Rooftop Solar Challenge | Department of Energy  

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

Act -Energy Sector Jobs -Education & Training -Funding Opportunities --Grants -Prices & Trends -Energy Policy Environmental Cleanup -Emergency Response & Procedures or Search...

40

Sunshot Rooftop Solar Challenge | Department of Energy  

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

OPEN 2012 Projects Clean Cities Coalition Regions Clean Cities Coalition Regions Google Crisis Map for Hurricane Sandy Google Crisis Map for Hurricane Sandy Alternative...

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


41

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

uence of cloudy weather on direct solar irradiance (Figurenormal solar irradiances values contained in the weather ?

Levinson, Ronnen

2010-01-01T23:59:59.000Z

42

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

the 14th European Photovoltaic Solar Energy Conference androoftop solar-energy systems, including photovoltaic panelsrooftop solar-energy systems, including photovoltaic panels

Levinson, Ronnen

2010-01-01T23:59:59.000Z

43

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

Data Center (NREL MIDC) Solar Position and Intensity (14] J.A. Du?e and W.A. Beckman. Solar Engineering of Thermalthe 14th European Photovoltaic Solar Energy Conference and

Levinson, Ronnen

2010-01-01T23:59:59.000Z

44

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

irradiance (incident solar power/area) incident on unshaded,losses (loss of incident solar power/area) were calculatedreduces the aggregate solar power incident on the planes at

Levinson, Ronnen

2010-01-01T23:59:59.000Z

45

Supply Curves for Rooftop Solar PV-Generated Electricity for the United States  

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

A0-44073 A0-44073 November 2008 Supply Curves for Rooftop Solar PV-Generated Electricity for the United States Paul Denholm and Robert Margolis Supply Curves for Rooftop Solar PV-Generated Electricity for the United States Paul Denholm and Robert Margolis Prepared under Task No. PVB7.6301 Technical Report NREL/TP-6A0-44073 November 2008 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

46

Methodology for Estimating Solar Potential on Multiple Building Rooftops for Photovoltaic Systems  

SciTech Connect

In this paper, a methodology for estimating solar potential on multiple building rooftops is presented. The objective of this methodology is to estimate the daily or monthly solar radiation potential on individual buildings in a city/region using Light Detection and Ranging (LiDAR) data and a geographic information system (GIS) approach. Conceptually, the methodology is based on the upward-looking hemispherical viewshed algorithm, but applied using an area-based modeling approach. The methodology considers input parameters, such as surface orientation, shadowing effect, elevation, and atmospheric conditions, that influence solar intensity on the earth s surface. The methodology has been implemented for some 212,000 buildings in Knox County, Tennessee, USA. Based on the results obtained, the methodology seems to be adequate for estimating solar radiation on multiple building rooftops. The use of LiDAR data improves the radiation potential estimates in terms of the model predictive error and the spatial pattern of the model outputs. This methodology could help cities/regions interested in sustainable projects to quickly identify buildings with higher potentials for roof-mounted photovoltaic systems.

Kodysh, Jeffrey B [ORNL; Omitaomu, Olufemi A [ORNL; Bhaduri, Budhendra L [ORNL; Neish, Bradley S [ORNL

2013-01-01T23:59:59.000Z

47

Could Building Energy Codes Mandate Rooftop Solar in the Future?  

Science Conference Proceedings (OSTI)

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.

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

2012-08-01T23:59:59.000Z

48

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

DOE Green Energy (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 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.

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

2008-03-03T23:59:59.000Z

49

SolOpt: A Novel Approach to Solar Rooftop Optimization  

DOE Green Energy (OSTI)

Traditionally Photovoltaic Technology (PV) and Solar Hot Water Technology (SHW) have been designed with separate design tools, making it difficult to determine the appropriate mix of PV and SHW. A new tool developed at the National Renewable Energy Laboratory changes how the analysis is conducted through an integrated approach based on the life cycle cost effectiveness of each system. With 10 inputs someone with only basic knowledge of the building can simulate energy production from PV and SHW, and predict the optimal sizes of the systems. The user can select from four optimization criteria currently available: Greenhouse Gas Reduction, Net-Present Value, Renewable Energy Production, and Discounted Payback Period. SolOpt provides unique analysis capabilities that aren't currently available in any other software programs. Validation results with industry accepted tools for both SHW and PV are presented.

Lisell, L.; Metzger, I.; Dean, J.

2011-01-01T23:59:59.000Z

50

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

DOE Green Energy (OSTI)

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).

Michael Deck; Rick Russell

2010-01-05T23:59:59.000Z

51

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

Science Conference Proceedings (OSTI)

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.

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

2012-01-01T23:59:59.000Z

52

SunShot Grand Challenge Highlights Ambitious Efforts along the...  

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

startups. Secretary Chu also announced a nationwide competition to drive down the cost of rooftop solar energy system. The SunShot Grand Challenge: Summit and Technology Forum...

53

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

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

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....

54

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

SciTech Connect

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.

Dwyer, Stephen F.

2013-05-01T23:59:59.000Z

55

Protecting Solar Rights in California Through an Exploration of the California Water Doctrine  

E-Print Network (OSTI)

protecting solar access, rooftop solar technology including unprecedented interest in rooftop solar technology.   The that ensure that rooftop solar capture continues to propel 

Fedman, Anna

2011-01-01T23:59:59.000Z

56

2005 the North American Solar Challenge  

SciTech Connect

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.

Dan Eberle

2008-12-22T23:59:59.000Z

57

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

E-Print Network (OSTI)

the 14 th European Photovoltaic Solar Energy Conference androoftop solar-energy systems, including photovoltaic panelsrooftop solar-energy systems, including photovoltaic panels

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

58

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

Science Conference Proceedings (OSTI)

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)

Izquierdo, Salvador; Montanes, Carlos; Dopazo, Cesar; Fueyo, Norberto [Fluid Mechanics Group, University of Zaragoza and LITEC (CSIC), Maria de Luna 3, 50018 Zaragoza (Spain)

2011-01-15T23:59:59.000Z

59

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

DOE Green Energy (OSTI)

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.

Not Available

2012-06-01T23:59:59.000Z

60

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

E-Print Network (OSTI)

loss (loss of incident solar power/area) at any given hourlosses (loss of incident solar power/area) were calculatedreduces the aggregate solar power incident on the planes at

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

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


61

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

E-Print Network (OSTI)

Data Center (NREL MIDC) Solar Position and Intensity (J.A. and Beckman, W. A.. 2006. Solar Engineering of ThermalOF ROOFING PLANES (%) IN SOLAR ACCESS VIOLATION BY MONTH AND

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

62

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System  

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

Suite of Projects Suite of Projects RTU Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Packaged air conditioners and heat pumps (RTUs) are used in about 58% of all cooled commercial buildings, serving about 69% of the cooled commercial building floor space (EIA 2003) - Navigant estimates that packaged air conditioners

63

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System  

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

Suite of Projects Suite of Projects RTU Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Packaged air conditioners and heat pumps (RTUs) are used in about 58% of all cooled commercial buildings, serving about 69% of the cooled commercial building floor space (EIA 2003) - Navigant estimates that packaged air conditioners

64

Numerical Analysis and Wind Tunnel Validation of Wind Deflectors for Rooftop Solar Panel Racks.  

E-Print Network (OSTI)

??Solar power since the past decade has become one of the very promising energy alternatives to the non-renewable forms of energy such as coal and… (more)

Yatsco, Michael P.

2011-01-01T23:59:59.000Z

65

CUTTING SOLAR RED TAPECUTTING SOLAR RED TAPE Evergreen State Solar PartnershipEvergreen State Solar Partnership  

E-Print Network (OSTI)

CUTTING SOLAR RED TAPECUTTING SOLAR RED TAPE Evergreen State Solar PartnershipEvergreen State Solar Partnership Rooftop Solar Challenge 1 Sunshot #12;WASHINGTON PV CONTEXTWASHINGTON PV CONTEXT 285 cities, 39 Installations happen where process is easier #12;EVERGREEN STATE SOLAR PARTNERSHIP Commerce NWSEEDEdmonds

66

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

DOE Green Energy (OSTI)

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.

NONE

1998-03-26T23:59:59.000Z

67

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

DOE Green Energy (OSTI)

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.

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

2011-11-01T23:59:59.000Z

68

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

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

the photovoltaic (PV) systems. "This is the largest domestic residential rooftop solar project in history," said Secretary Chu. "This groundbreaking project is expected to create...

69

DIY ROOFTOP GARDENS CHECKLIST  

E-Print Network (OSTI)

DIY ROOFTOP GARDENS CHECKLIST It is essential to get professionals involved at the outset to have SEE OUR: General DIY safety tips Painter's checklist VISIT DOMAIN'S DIY SPECIAL FEATURECoburgin2008.Photographer:RodgerCummins. DIY ROOFTOP GARDENS CHECKLIST #12;

Peters, Richard

70

Rooftop Unit Campaign  

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

919-943-7291 April 4, 2013 BTO Program Review 2 | Building Technologies Office eere.energy.gov Purpose & Objectives - Problem Statement * Packaged rooftop units (RTUs)...

71

SunShot Grand Challenge Highlights Ambitious Efforts along the...  

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

Secretary Chu also announced a nationwide competition to drive down the cost of rooftop solar energy system. The SunShot Grand Challenge: Summit and Technology Forum kicked off in...

72

A 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS  

E-Print Network (OSTI)

factor satisfies aesthetic demands for general rooftop solar technologies, and is a marked departure fromA 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS D Walter has been developed specifically for urban rooftop environments. The light- weight, low-profile form

73

The solar energy challenge-Seth Darling | Argonne National Laboratory  

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

The solar energy challenge-Seth Darling Share Description Argonne researcher Seth Darling talks about the solar energy challenge. Topic Energy Energy sources Renewable energy Solar...

74

Solar Adoption and Energy Consumption in the Residential Sector  

E-Print Network (OSTI)

respond to having a rooftop solar system. There is a robustindustry, since a small rooftop solar system can producecompliance. 27 . Each kW of rooftop solar capacity produces

McAllister, Joseph Andrew

2012-01-01T23:59:59.000Z

75

Analysis of International Policies In The Solar Electricity Sector: Lessons for India  

E-Print Network (OSTI)

2,000 MW of mainly rooftop solar capacity (smaller than 1.5connected solar, 100 MW of rooftop solar PV, and 200 MW ofthe installation of solar PV on residential rooftops is less

Deshmukh, Ranjit

2011-01-01T23:59:59.000Z

76

NREL-Optimizing Rooftop Space with SolOpt Presentation | Open Energy  

Open Energy Info (EERE)

NREL-Optimizing Rooftop Space with SolOpt Presentation NREL-Optimizing Rooftop Space with SolOpt Presentation Jump to: navigation, search Tool Summary Name: Optimizing Rooftop Space with SolOpt Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy Focus Area: Buildings, Solar Topics: Implementation, Technology characterizations Resource Type: Presentation, Guide/manual, Training materials Website: www.solaramericacities.energy.gov/pdfs/2010_annual_meeting/Thu400_SWH_ Optimizing Rooftop Space with SolOpt Screenshot References: Optimizing Rooftop Space with SolOpt[1] Logo: Optimizing Rooftop Space with SolOpt This presentation answers the question: "How do you decide what type of solar system should be used for a specific facility?" References ↑ "Optimizing Rooftop Space with SolOpt"

77

"Fundamental Challenges in Solar Energy Conversion" workshop...  

Office of Science (SC) Website

Fundamental Challenges in Solar Energy Conversion" workshop hosted by LMI-EFRC Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events...

78

rooftop | OpenEI  

Open Energy Info (EERE)

rooftop rooftop Dataset Summary Description No description given. Source National Renewable Energy Laboratory Date Released July 03rd, 2012 (2 years ago) Date Updated July 03rd, 2012 (2 years ago) Keywords biopower csp geothermal hydropower hydrothermal Renewable Energy Technical Potential rooftop United States utility-scale wind Data text/csv icon United States Renewable Energy Technical Potential (csv, 7.7 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote

79

Next Generation Rooftop Unit  

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

Next Generation Rooftop Unit - Next Generation Rooftop Unit - CRADA Bo Shen Oak Ridge National Laboratory shenb@ornl.gov; 865-574-5745 April 3, 2013 ET R&D project in support of DOE/BTO Goal of 50% Reduction in Building Energy Use by 2030. CRADA project with Trane TOP US Commercial HVAC Equipment OEM 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: half of all US commercial floor space cooled by packaged AC units, consumes more than 1.0 Quad source energy/year; highly efficient systems needed

80

Next Generation Rooftop Unit  

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

Next Generation Rooftop Unit - Next Generation Rooftop Unit - CRADA Bo Shen Oak Ridge National Laboratory shenb@ornl.gov; 865-574-5745 April 3, 2013 ET R&D project in support of DOE/BTO Goal of 50% Reduction in Building Energy Use by 2030. CRADA project with Trane TOP US Commercial HVAC Equipment OEM 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: half of all US commercial floor space cooled by packaged AC units, consumes more than 1.0 Quad source energy/year; highly efficient systems needed

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


81

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

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

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,...

82

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

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

12 Million to Spur Rapid Adoption of Solar Energy with 12 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 Coleman to announce $12 million in funding for the awardees of the Rooftop Solar Challenge. The Challenge supports 22 regional teams to spur solar power deployment by cutting red tape - streamlining and standardizing permitting, zoning, metering, and connection processes - and improving finance options to reduce barriers and lower costs for

83

Energy Department Finalizes Loan Guarantee for Transformational Rooftop  

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

Loan Guarantee for Transformational Loan Guarantee for Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced that the Department has finalized a partial guarantee for a $1.4 billion loan to support Project Amp. The solar generation project includes the installation of approximately 752 megawatts (MW) of photovoltaic (PV) solar panels, which is over 80% of the total amount of PV installed in the U.S. in 2010. Project Amp will support the installation of solar panels across approximately 750 existing rooftops owned and managed by Prologis. The electricity generated from those panels will contribute directly to the electrical grid. The project sponsor estimates Project Amp will create

84

Energy Department Finalizes Loan Guarantee for Transformational Rooftop  

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

for Transformational for Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced that the Department has finalized a partial guarantee for a $1.4 billion loan to support Project Amp. The solar generation project includes the installation of approximately 752 megawatts (MW) of photovoltaic (PV) solar panels, which is over 80% of the total amount of PV installed in the U.S. in 2010. Project Amp will support the installation of solar panels across approximately 750 existing rooftops owned and managed by Prologis. The electricity generated from those panels will contribute directly to the electrical grid. The project sponsor estimates Project Amp will create

85

2003 American Solar Challenge Official Starting Lineup  

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

American Solar Challenge Official Starting Lineup Starting Team Car Time 9:00 Kansas State University 28 9:01 University of Minnesota 35 9:02 University of Missouri - Rolla 42...

86

Rooftop Diagnostician - Available Technologies - PNNL  

It allows you to remotely monitor the functionality of a rooftop unit in order to easily and cost ... Detects high energy use and control failures; ...

87

Rooftop Diagnostician - Energy Innovation Portal  

The Rooftop Diagnostician provides fast and effective diagnostics for heating, ventilation and air conditioning units in commercial buildings, allowing you to better ...

88

Modeling the U.S. Rooftop Photovoltaics Market  

DOE Green Energy (OSTI)

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.

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

2010-09-01T23:59:59.000Z

89

Rooftop Photovoltaics Market Penetration Scenarios  

DOE Green Energy (OSTI)

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.

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

2008-02-01T23:59:59.000Z

90

SunShot Initiative: SunShot Prize: Race to the Rooftops  

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

Sponsored by the U.S. Department of Energy (DOE), the SunShot Prize aims to spur low-cost rooftop solar installations across the nation. This competition offers a total of 10...

91

2003 American Solar Challenge Official Starting Lineup  

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

American Solar Challenge Official Starting Lineup American Solar Challenge Official Starting Lineup Starting Team Car # Time 9:00 Kansas State University 28 9:01 University of Minnesota 35 9:02 University of Missouri - Rolla 42 9:03 University of Missouri - Columbia 43 9:04 University of Toronto 11 9:05 University of Waterloo 24 9:06 North Dakota State University 22 9:07 Auburn University 7 9:08 CalSol 254 9:09 Principia College 32 9:10 Queen's University 100 9:11 Western Michigan University 786 9:12 Purdue University 314 9:13 University of Pennsylvania 76 9:14 Iowa State University 9 9:15 Texas A&M University 12 9:16 McGill University 66 9:17 University of Arizona 8 9:18 Stanford University 16 9:19 California Polytechnic State University - SLO 5

92

Investigation of the Role of Trap States in Solar Cell Reliability using Photothermal Deflection Spectroscopy  

E-Print Network (OSTI)

Second, solar power can be easily mounted on the rooftop ofsolar cells can be rolled out onto roofs or other surfaces, or used for rooftop

Bezryadina, Anna Sergeyevna

2012-01-01T23:59:59.000Z

93

2008 Solar Technologies Market Report  

E-Print Network (OSTI)

Supply Curves for Rooftop Solar PV Generated Electricity forare all privately owned solar PV production companies.demand projections for solar PV modules by location. Global

Price, S.

2010-01-01T23:59:59.000Z

94

Help Solve Solar's Big Challenge | Department of Energy  

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

Help Solve Solar's Big Challenge Help Solve Solar's Big Challenge Help Solve Solar's Big Challenge December 2, 2013 - 1:00pm Addthis Soft costs now account for more than 60% of the total price of installing residential solar energy systems. View the full infographic to learn more. Soft costs now account for more than 60% of the total price of installing residential solar energy systems. View the full infographic to learn more. Soft costs now account for more than 60% of the total price of installing residential solar energy systems. View the full infographic to learn more.

95

Solar Rights | Department of Energy  

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

Solar Rights Solar Rights Solar Rights < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Program Info State Arizona Program Type Solar/Wind Access Policy Arizona law protects individual homeowners' private property rights to solar access by dissolving any local covenant, restriction or condition attached to a property deed that restricts the use of solar energy. This law sustained a legal challenge in 2000. A Maricopa County Superior Court judge ruled in favor of homeowners in a lawsuit filed by their homeowners association seeking to force the homeowners to remove roof-top

96

Solar | Department of Energy  

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

manufacturing facility. February 7, 2013 Milwaukee solar installers putting in a rooftop solar energy system on Dr. Paula Papanek's home. | Photo courtesy of Dr. Paula Papanek....

97

Computational Challenges for Nanostructure Solar Cells Project at NERSC  

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

Challenges for Challenges for Nanostructure Solar Cells Computational Challenges for Nanostructure Solar Cells ZZ2.jpg Key Challenges: Current nanostructure solar cells often have energy efficiencies well below that of traditional solar cells. To understand why, one must understand the complete photoelectron dynamics in a nanostructure - the photon absorption, exciton generation, exciton dissociation, carrier transport and carrier collection. However, the large number of surface states, the strong exciton binding energies, the nano-interfaces, the lack of doping, and the possibility of unintended internal electric fields make this a daunting task that requires a suite of techniques and computer codes offering different electronic structure methods and varying levels of

98

Rooftop PV system. Final technical progress report, Phase II  

SciTech Connect

Under this four-year PV:BONUS Program, ECD and United Solar are developing and demonstrating two new lightweight flexible building integrated Photovoltaic (BIPV) modules specifically designed as exact replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and address the even larger roofing replacement market. The modules are designed to be installed by roofing contractors without special training which minimizes the installation and balance of system costs. The modules will be fabricated from high-efficiency, multiple-junction a-Si alloy solar cells developed by ECD and United Solar. Under the Phase I Program, which ended in March 1994, we developed two different concept designs for rooftop PV modules: (1) the United Solar overlapping (asphalt shingle replacement) shingle-type modules and (2) the ECD metal roof-type modules. We also developed a plan for fabricating, testing and demonstrating these modules. Candidate demonstration sites for our rooftop PV modules were identified and preliminary engineering designs for these demonstrations were developed; a marketing study plan was also developed. The major objectives of the Phase II Program, which started in June 1994 was (1) to develop, test, and qualify these new rooftop modules; (2) to develop mechanical and electrical engineering specifications for the demonstration projects; and (3) to develop a marketing/commercialization plan.

1995-08-01T23:59:59.000Z

99

Active Solar Heating Basics | Department of Energy  

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

NREL Active Solar Heating Linear Concentrator System Basics for Concentrating Solar Power Rooftop solar water heaters need regular maintenance to operate at peak efficiency. |...

100

The challenges of organic polymer solar cells  

E-Print Network (OSTI)

The technical and commercial prospects of polymer solar cells were evaluated. Polymer solar cells are an attractive approach to fabricate and deploy roll-to-roll processed solar cells that are reasonably efficient (total ...

Saif Addin, Burhan K. (Burhan Khalid)

2011-01-01T23:59:59.000Z

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


101

Insuring Solar Photovoltaics: Challenges and Possible Solutions  

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

Concentrating Solar Power - Technology, Costs, and Markets: A Guide to the Impact CSP Technologies will Have on the Solar and Broader Renewable Energy Markets through 2020:...

102

Next Generation Rooftop Unit | Department of Energy  

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

Next Generation Rooftop Unit Next Generation Rooftop Unit Next Generation Rooftop Unit The U.S. Department of Energy is currently conducting research in a next generation rooftop unit (RTU). More than half of U.S. commercial building space is cooled by packaged heating, ventilation, and air conditioning (HVAC) equipment. Existing rooftop HVAC units consume more than 1.3% of the United States' annual energy usage annually. Project Description This project seeks to evaluate optimal design strategies for significantly improving the efficiency of rooftop units. The primary market for this project is commercial buildings, such as supermarkets and hotels. Project Partners Research is being undertaken through a cooperative research and development agreement (CRADA) between the Department of Energy and Oak Ridge National

103

Ice storage rooftop retrofit for rooftop air conditioning  

SciTech Connect

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.

Tomlinson, J.J. [Oak Ridge National Lab., TN (United States); Jennings, L.W. [Univ. of Tennessee, Knoxville (United States)

1997-09-01T23:59:59.000Z

104

A Statistical Pattern Analysis Framework for Rooftop Unit Diagnostics  

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

A Statistical Pattern Analysis Framework for Rooftop Unit Diagnostics Title A Statistical Pattern Analysis Framework for Rooftop Unit Diagnostics Publication Type Journal Article...

105

DOE Solar Decathlon: 2009 Team Alberta  

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

experience. Illustration of the Team Alberta house. It has a dual rooftop structure for solar panels that is separated by a rooftop terrace. The Team Alberta home packs a lot of...

106

Secretary Chu Congratulates Solar Decathlon Winners | Department...  

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

farm, several of the largest solar photovoltaic generation facilities, an unprecedented solar rooftop project, and two of the nation's first commercial-scale cellulosic ethanol...

107

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network (OSTI)

large (>500 kW) rooftop systems and “solar gardens” owned bySolar PV Distributed Generation Program: Duke Energy plans to install 10 MW of ground-mounted and rooftop

Wiser, Ryan

2010-01-01T23:59:59.000Z

108

DOE Solar Decathlon: Middlebury College  

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

replaces the traditional rooftop array to create an exterior walkway shaded by solar panels. A lush green roof contributes to the thermal envelope of the house, sequesters...

109

Skyline Solar | Open Energy Information  

Open Energy Info (EERE)

Zip 95054 Product Developer of medium-concentration PV system for non-residential rooftop deployment. References Skyline Solar1 Information About Partnership with NREL...

110

Partnering Opportunity: Smart Solar Rooftops Vaccine for ...  

fossil fuels. Status This technology has been licensed to a new company; partnering and collaboration opportunities exist. Please contact TTO for more information.

111

Smart Solar Rooftops: Economically Competitive Vaccine for ...  

electricity at a price and efficiency that can compete with fossil fuels. Vaccine for Prevention and Treatment of Autoimmune Diseases Page 1 of 1 IP Status:

112

Heat Transfer Fluids for Solar Water Heating Systems | Department...  

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

exchanger. | Photo from iStockphoto.com Heat Exchangers for Solar Water Heating Systems Rooftop solar water heaters need regular maintenance to operate at peak efficiency. |...

113

Assessment of Rooftop and Building-Integrated PV Systems for Distributed Generation  

Science Conference Proceedings (OSTI)

Photovoltaics (PV) is the technology of solar cells -- solid-state devices that directly, silently, and cleanly convert solar energy into electricity. Although commercially available for many years, PV technology has only recently become sufficiently affordable and efficient to be a practical alternative or supplement to conventional grid power. PV devices are commonly mounted on a structure's rooftop, but are increasingly integrated into building components such as siding, glass, or roof tiles. This rep...

2003-03-04T23:59:59.000Z

114

Energy Department Invests $12 Million to Slash Red Tape and Speed Solar  

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

2 Million to Slash Red Tape and Speed 2 Million to Slash Red Tape and Speed Solar Deployment for Homes and Businesses Energy Department Invests $12 Million to Slash Red Tape and Speed Solar Deployment for Homes and Businesses November 6, 2013 - 8:30am Addthis News Media Contact (202) 586-4940 WASHINGTON - As part of the Obama Administration's efforts to ensure America's continued leadership in clean energy and double renewable electricity generation once again by 2020, the Energy Department today announced eight teams to spur solar power deployment by cutting red tape for residential and small commercial rooftop solar systems. As part of the Department's Rooftop Solar Challenge, these teams will receive about $12 million- matched by over $4 million in outside funding - to streamline and standardize solar permitting, zoning, metering and connection processes

115

Overview and Challenges of Thin Film Solar Electric Technologies  

DOE Green Energy (OSTI)

In this paper, we report on the significant progress made worldwide by thin-film solar cells, namely, amorphous silicon (a-Si), cadmium telluride (CdTe), and copper indium gallium diselenide (CIGS). Thin-film photovoltaic (PV) technology status is also discussed in detail. In addition, R&D and technology challenges in all three areas are elucidated. The worldwide estimated projection for thin-film PV technology production capacity announcements are estimated at more than 5000 MW by 2010.

Ullal, H. S.

2008-12-01T23:59:59.000Z

116

Energy Department Invests $12 Million to Slash Red Tape and Speed Solar  

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

Energy Department Invests $12 Million to Slash Red Tape and Speed Energy Department Invests $12 Million to Slash Red Tape and Speed Solar Deployment for Homes and Businesses Energy Department Invests $12 Million to Slash Red Tape and Speed Solar Deployment for Homes and Businesses November 6, 2013 - 8:30am Addthis News Media Contact (202) 586-4940 WASHINGTON - As part of the Obama Administration's efforts to ensure America's continued leadership in clean energy and double renewable electricity generation once again by 2020, the Energy Department today announced eight teams to spur solar power deployment by cutting red tape for residential and small commercial rooftop solar systems. As part of the Department's Rooftop Solar Challenge, these teams will receive about $12 million- matched by over $4 million in outside funding - to streamline

117

SunShot Grand Challenge Highlights Ambitious Efforts along the...  

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

one awardee is using remotely sensed data to provide a suitability score for rooftop solar installations, while another is building an online marketplace for local companies...

118

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 LinkedIn Connections CrunchBase Profile...

119

5 Questions about the SunShot Prize for Minh Le - Solar Program...  

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

Prize -- a new competition aimed at making it faster, easier, and cheaper to install rooftop solar energy systems. Participating teams must demonstrate that solar energy is an...

120

The Bright Lights in New York Could Be Solar | Department of...  

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

on Broadway. The Big Apple also is increasingly aglow with solar power, particularly from rooftop photovoltaic (PV) solar. Earlier this year, the city unveiled the New York City...

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


121

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

Science Conference Proceedings (OSTI)

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.

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

2013-01-01T23:59:59.000Z

122

Overview and Challenges of Thin Film Solar Electric Technologies  

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

and Challenges of Thin and Challenges of Thin Film Solar Electric Technologies H.S. Ullal Presented at the World Renewable Energy Congress X and Exhibition 2008 Glasgow, Scotland, United Kingdom July 19-25, 2008 Conference Paper NREL/CP-520-43355 December 2008 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (ASE), a contractor of the US Government under Contract No. DE-AC36-08-GO28308. Accordingly, the US Government and ASE retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any

123

DOE Solar Decathlon: 2005 Teams - Canadian Solar  

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

moment in front of its winter-ready house. Computer-generated image of Canada's 2005 Solar Decathlon house. Sleek rooftop PV panels are just one example of team Canada's...

124

Energy - Challenges | Data.gov  

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

Sponsored by the U.S. Department of Energy (DOE), the SunShot Prize aims to spur low-cost rooftop solar installations across the nation. This competition offers a total of 10...

125

NEUP Award Recipients | Department of Energy  

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

Ecosystem Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

126

DOE Solar Decathlon: News Blog » Blog Archive » Where To Build...  

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

rooftops, where space and access to sunlight are plentiful. More specifically, the Solar Decathlon team, composed of architecture and engineering students from The City...

127

SunShot Initiative: Solar Utility Networks: Replicable Innovations...  

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

in California that can be realized from forecasts of behind-the-meter distributed (rooftop) solar photovoltaic (PV) generation. This project will reduce the costs of...

128

Energy Department Invests $12 Million to Slash Red Tape and Speed...  

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

to spur solar power deployment by cutting red tape for residential and small commercial rooftop solar systems. As part of the Department's Rooftop Solar Challenge, these teams...

129

Insuring Solar Photovoltaics: Challenges and Possible Solutions; (Revised)  

DOE Green Energy (OSTI)

Insuring solar photovoltaic (PV) systems poses certain challenges. Insurance premiums, which can represent a significant part of overall costs for PV developers, can affect market competition. The market for certain types of insurance products is limited. Historical loss data is lacking, and test data for the long-term viability of PV products under real-life conditions is limited. Insurers' knowledge about PV systems and the PV industry is uneven even as the industry introduces innovative contractual structures and business models. Interviews conducted for this report with PV project developers, insurance brokers, and underwriters suggest government actions aimed at better testing, data collection, and communication could facilitate the development of a market for PV insurance products. This report identifies actions by governments, national laboratories, and other stakeholders that could accelerate the development of insurance products in support PV systems. Such actions include: increasing understanding of the solar PV industry among insurance professionals; expanding the availability of PV historical loss data; evaluating the expansion of renewable energy business classification; developing module and component testing capabilities and services offered by federal labs; and, advancing industry standards for PV system installers.

Speer, B.; Mendelsohn, M.; Cory, K.

2010-02-01T23:59:59.000Z

130

Property:PotentialRooftopPVGeneration | Open Energy Information  

Open Energy Info (EERE)

PotentialRooftopPVGeneration PotentialRooftopPVGeneration Jump to: navigation, search Property Name PotentialRooftopPVGeneration Property Type Quantity Description The estimated potential energy generation from Rooftop PV for a particular place. Use this type to express a quantity of energy. The default unit for energy on OpenEI is the Kilowatt hour (kWh), which is 3,600,000 Joules. http://en.wikipedia.org/wiki/Unit_of_energy It's possible types are Watt hours - 1000 Wh, Watt hour, Watthour Kilowatt hours - 1 kWh, Kilowatt hour, Kilowatthour Megawatt hours - 0.001 MWh, Megawatt hour, Megawatthour Gigawatt hours - 0.000001 GWh, Gigawatt hour, Gigawatthour Joules - 3600000 J, Joules, joules Pages using the property "PotentialRooftopPVGeneration" Showing 25 pages using this property. (previous 25) (next 25)

131

An Overview of Solar Cell Technology Mike McGehee  

E-Print Network (OSTI)

An Overview of Solar Cell Technology Mike McGehee Materials Science and Engineering Global Climate;Primary Photovoltaic (PV) Markets Residential Rooftop Commercial Rooftop Ground mounted (Usually 2Watt and Evergreen Solar went bankrupt Jon Stewart, The Daily Show Solyndra, SpectraWatt and Evergreen Solar went

McGehee, Michael

132

County of Los Angeles This page outlines solar PV incentives, financing mechanisms, permitting process, and  

E-Print Network (OSTI)

/csi-latest-news/2167-why-pay-to-install-solar o Southern California Edison Solar Rooftop Program · This commercial energy grid. www.sce.com/solarleadership/solar-rooftop-program/ Property Assessed Clean Energy (PACECounty of Los Angeles This page outlines solar PV incentives, financing mechanisms, permitting

133

City of Long Beach This page outlines solar PV incentives, financing mechanisms, permitting process, and  

E-Print Network (OSTI)

/csi-latest-news/2167-why-pay-to-install-solar o Southern California Edison Solar Rooftop Program · This commercial energy grid. www.sce.com/solarleadership/solar-rooftop-program/ Property Assessed Clean Energy (PACECity of Long Beach This page outlines solar PV incentives, financing mechanisms, permitting process

134

City of Santa Ana This page outlines solar PV incentives, financing mechanisms, permitting process, and  

E-Print Network (OSTI)

/csi-latest-news/2167-why-pay-to-install-solar o Southern California Edison Solar Rooftop Program · This commercial energy grid. www.sce.com/solarleadership/solar-rooftop-program/ Secured Financing Secured financingCity of Santa Ana This page outlines solar PV incentives, financing mechanisms, permitting process

135

City of Palmdale This page outlines solar PV incentives, financing mechanisms, permitting process, and  

E-Print Network (OSTI)

/csi-latest-news/2167-why-pay-to-install-solar o Southern California Edison Solar Rooftop Program · This commercial energy grid. www.sce.com/solarleadership/solar-rooftop-program/ Property Assessed Clean Energy (PACECity of Palmdale This page outlines solar PV incentives, financing mechanisms, permitting process

136

City of Palm Desert This page outlines solar PV incentives, financing mechanisms, permitting process, and  

E-Print Network (OSTI)

/csi-latest-news/2167-why-pay-to-install-solar o Southern California Edison Solar Rooftop Program · This commercial energy grid. www.sce.com/solarleadership/solar-rooftop-program/ Property Assessed Clean Energy (PACECity of Palm Desert This page outlines solar PV incentives, financing mechanisms, permitting

137

City of Santa Monica This page outlines solar PV incentives, financing mechanisms, permitting process, and interconnection  

E-Print Network (OSTI)

-initiative/csi-latest- news/2167-why-pay-to-install-solar o Southern California Edison Solar Rooftop Program · This commercial energy grid. www.sce.com/solarleadership/solar-rooftop-program/ Property Assessed Clean Energy (PACECity of Santa Monica This page outlines solar PV incentives, financing mechanisms, permitting

138

Buildings | Department of Energy  

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

Neighborhood Program Better Buildings Challenge Max Tech and Beyond Design Competition Rooftop Solar Challenge Rooftop Unit Challenge for Commercial Air Conditioners Wireless...

139

"Fundamental Challenges in Solar Energy Conversion" workshop hosted by  

Office of Science (SC) Website

Fundamental Challenges in Solar Energy Fundamental Challenges in Solar Energy Conversion" workshop hosted by LMI-EFRC Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements Publications Contact BES Home 06.02.10 "Fundamental Challenges in Solar Energy Conversion" workshop hosted by LMI-EFRC Print Text Size: A A A Subscribe FeedbackShare Page July 7, 2010 :: The Light-Material Interactions in Energy Conversion EFRC at the California Institute of Technology will host a one day "Fundamental Challenges in Solar Energy Conversion" workshop for faculty, staff, postdoctoral, and graduate researchers from EFRCs focused on solar energy conversion. More information can be found here .pdf file (553KB

140

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

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

Finding Solutions to Solar's Soft Cost Dilemma Finding 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 streamline rooftop solar installations so that its faster, easier and cheaper for Americans to go solar. | Photo courtesy of Dennis Schroeder, NREL. Minh Le Minh Le Program Manager, Solar Program Learn More about Solar's Soft Costs Check out Clean Power Finance's study on solar's soft costs here.

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


141

Milwaukee Installer Reflects on His Career In Solar | Department...  

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

An Interview with the CEO of Helios Solar Works Milwaukee solar installers putting in a rooftop solar energy system on Dr. Paula Papanek's home. | Photo courtesy of Dr. Paula...

142

Solar Decathlon: Collegiate Challenge to Build the Future; Preprint  

DOE Green Energy (OSTI)

A new collegiate competition, called the Solar Decathlon, is under way. Fourteen teams from colleges and universities across the United States, including Puerto Rico, will assemble on the National Mall in Washington, DC, in late September 2002. They will compete to capture, convert, store, and use enough solar energy to power small, solar-powered, energy-efficient homes that they have designed, built, and transported to the site. Solar Decathletes will be required to provide all the energy for an entire household, including a home-based business and the transportation needs of the household and business. During the event, only the solar energy available within the perimeter of each house may be used to generate the power needed to compete in the ten Solar Decathlon contests. The event is sponsored by the U.S. Department of Energy, National Renewable Energy Laboratory, and private-sector partners BP Solar, American Institute of Architects, Electronic Data Systems, and Home Depot.

Warner, C.; King, R.; Nahan, R.; Eastment, M.

2002-05-01T23:59:59.000Z

143

SunShot Grand Challenge Highlights Ambitious Efforts along the Entire Solar  

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

SunShot Grand Challenge Highlights Ambitious Efforts along the SunShot Grand Challenge Highlights Ambitious Efforts along the Entire Solar Spectrum SunShot Grand Challenge Highlights Ambitious Efforts along the Entire Solar Spectrum June 13, 2012 - 5:30pm Addthis Energy Secretary Steven Chu gives the keynote address at the SunShot Grand Challenge Summit in Denver, Colorado. | Photo by Dennis Schroeder/NREL. Energy Secretary Steven Chu gives the keynote address at the SunShot Grand Challenge Summit in Denver, Colorado. | Photo by Dennis Schroeder/NREL. Ramamoorthy Ramesh Former Director, SunShot Initiative & Solar Energy Technologies Program What are the key facts? Today at the SunShot Grand Challenge Summit Energy Secretary Chu announced up to $8 million to support clean energy startups. Secretary Chu also announced a nationwide competition to drive down

144

Rooftop package unit diagnostician - Energy Innovation Portal  

Hydrogen and Fuel Cell; Hydropower, Wave and Tidal; Industrial Technologies; Solar Photovoltaic; Solar Thermal; Startup America; Vehicles and Fuels; ... August 17, 2004:

145

Property:PotentialRooftopPVCapacity | Open Energy Information  

Open Energy Info (EERE)

PotentialRooftopPVCapacity PotentialRooftopPVCapacity Jump to: navigation, search Property Name PotentialRooftopPVCapacity Property Type Quantity Description The nameplate capacity technical potential from Rooftop PV for a particular place. Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS 1000000000 mW,milliwatt,milliwatts,MILLIWATT,MILLIWATTS 0.001 GW,gigawatt,gigawatts,Gigawatt,Gigawatts,GigaWatt,GigaWatts,GIGAWATT,GIGAWATTS

146

New and Underutilized Technology: Advanced Rooftop Packaged Air...  

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

category are rooftop units that have: Condensing units that drain to the interior of the building. Better insulation. Duct dampers that prevent off-cycle losses due to convection...

147

Energy Department Announces SunShot Startup Investments and Competitio...  

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

Grand Challenge Summit in Denver, Secretary Chu announced the "America's Most Affordable Rooftop Solar" competition to aggressively drive down the cost of rooftop solar energy...

148

Opportunities and Challenges for Solar Minigrid Development in Rural India  

DOE Green Energy (OSTI)

The goal of this report is to inform investors about the potential of solar minigrid technologies to serve India's rural market. Under the US-India Energy Dialogue, the US Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) is supporting the Indian Ministry of New and Renewable Energy (MNRE)'s Jawaharlal Nehru National Solar Mission (JNNSM) in performing a business-case and policy-oriented analysis on the deployment of solar minigrids in India. The JNNSM scheme targets the development of 2GW of off-grid solar power by 2022 and provides large subsidies to meet this target. NREL worked with electricity capacity and demand data supplied by the Ladakh Renewable Energy Development Agency (LREDA) from Leh District, to develop a technical approach for solar minigrid development. Based on the NREL-developed, simulated solar insolation data for the city of Leh, a 250-kW solar photovoltaic (PV) system can produce 427,737 kWh over a 12-month period. The business case analysis, based on several different scenarios and JNNSM incentives shows the cost of power ranges from Rs. 6.3/kWh (US$0.126) to Rs. 9/kWh (US$0.18). At these rates, solar power is a cheaper alternative to diesel. An assessment of the macro-environment elements--including political, economic, environmental, social, and technological--was also performed to identify factors that may impact India?s energy development initiatives.

Thirumurthy, N.; Harrington, L.; Martin, D.; Thomas, L.; Takpa, J.; Gergan, R.

2012-09-01T23:59:59.000Z

149

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners  

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

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners Title Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners Publication Type Conference Proceedings Year of Publication 2000 Authors Shugars, John, Philip Coleman, Christopher T. Payne, and Laura Van Wie McGrory Conference Name Proceedings from the 2000 ACEEE Summer Study on Energy Efficiency in Buildings Volume 10 Pagination 217-226 Date Published 01/2000 Abstract The energy efficiency ofmany products has increased markedly over the past decade. A conspicuous exception to this trend is commercialpackaged rooftop air conditioners, which have experiencedlittle to no efficiency improvement since 1992 when the Energy Policy Act of 1992 imposed federal minimum standards. Packaged rooftop units have been estimated to use on the order of76 billion kWh annually in the US, at a cost ofroughly $5.6 billion. Sales of these units are growing, and the majority of units sold have energy efficiency ratios (EERs) at orjust above the current national minimum efficiency standards. In this paper we document the static efficiencies ofcommercialpackaged air conditioners, explore the reasons behindthis efficiency gap, and assess opportunities for overcoming the barriers to efficiency improvements in these products.

150

DOE Solar Decathlon: 2009 Team Ontario/BC  

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

northern latitudes also means taking a different approach to passive solar heating and solar electric panels. The team could not count on much power from rooftop panels in the...

151

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners  

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

Bridging Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners John Shugars, Consultant Philip Coleman, Lawrence BerkeleyNational Laboratory ChristopherPayne, Lawrence Berkeley National Laboratory Laura Van Wie McGrory, Lawrence Berkeley National Laboratory ABSTRACT The energy efficiency ofmany products has increased markedly over the past decade. A conspicuous exception to this trend is commercial packaged rooftop air conditioners, which have experiencedlittle to no efficiency improvement since 1992 when the Energy Policy Act of 1992 imposed federal minimum standards. Packaged rooftop units have been estimated to use on the order of76 billion kWh annually in the US, at a cost ofroughly $5.6 billion. Sales of these units are growing, and the majority of units sold have energy efficiency ratios (EERs) at orjust above the current national minimum efficiency

152

Photovoltaic array with minimally penetrating rooftop support system  

DOE Patents (OSTI)

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.

Lenox, Carl J.S.

2012-10-23T23:59:59.000Z

153

Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners  

DOE Green Energy (OSTI)

Residential and commercial end users of electricity who want to generate electricity using on-site solar photovoltaic (PV) systems face challenging initial and O&M costs. The third-party ownership power purchase agreement (PPA) finance model addresses these and other challenges. It allows developers to build and own PV systems on customers? properties and sell power back to customers. However, third-party electricity sales commonly face five regulatory challenges. The first three challenges involve legislative or regulatory definitions of electric utilities, power generation equipment, and providers of electric services. These definitions may compel third-party owners of solar PV systems to comply with regulations that may be cost prohibitive. Third-party owners face an additional challenge if they may not net meter, a practice that provides significant financial incentive to owning solar PV systems. Finally, municipalities and cooperatives worry about the regulatory implications of allowing an entity to sell electricity within their service territories. This paper summarizes these challenges, when they occur, and how they have been addressed in five states. This paper also presents alternative to the third-party ownership PPA finance model, including solar leases, contractual intermediaries, standardized contract language, federal investment tax credits, clean renewable energy bonds, and waived monopoly powers.

Kollins, K.; Speer, B.; Cory, K.

2009-11-01T23:59:59.000Z

154

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

Science Conference Proceedings (OSTI)

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.

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

2008-01-01T23:59:59.000Z

155

The Energy Challenge: The Current and Future Role of Solar Energy  

DOE Green Energy (OSTI)

This talk begins by framing the outlook for global energy supply and demand over the next 40 years, examining the potential energy mix from a feasibility and sustainability perspective. In this context, the promise and challenges of solar energy utilization are discussed. An overview of solar energy research programs at Argonne is provided, and focuses specifically on research in Seth Darling's group in the areas of organic and hybrid organic/inorganic photovoltaics.

Darling, Seth (ANL)

2011-08-10T23:59:59.000Z

156

Durable innovative solar optical materials: the international challenge  

DOE Green Energy (OSTI)

A variety of optical coatings are discussed in the context of solar energy utilization. Well known coatings such as heat mirrors, selective absorbers, and reflective films are covered briefly. Emphasis is placed on the materials limitations and design choices for various lesser known optical coatings and materials. Physical and optical properties are detailed for protective antireflection films, fluorescent concentrator materials, holographic films, cold mirrors, radiative cooling surfaces, and optical switching films including electrochromic, thermochromic, photochromic, and liquid crystal types. For many of these materials research is only now being considered, and various design and durability issues must be addressed.

Lampert, C.M.

1982-01-01T23:59:59.000Z

157

Improved Rooftop Detection in Aerial Images with Machine Learning  

Science Conference Proceedings (OSTI)

In this paper, we examine the use of machine learning to improve a rooftop detection process, one step in a vision system that recognizes buildings in overhead imagery. We review the problem of analyzing aerial images and describe an existing system ... Keywords: applications of learning, evaluation of algorithms, learning for computer vision, supervised learning

M. A. Maloof; P. Langley; T. O. Binford; R. Nevatia; S. Sage

2003-10-01T23:59:59.000Z

158

Building Integrated Photovoltaics: New trends and Challenges'  

E-Print Network (OSTI)

in 2010 rooftop solar projects surged to $60 billion-worth of investment. · The global cumulative Sciences, Heriot Watt University, Edinburgh- EH14 4AS India-UK Collaboration in Solar Energy #12;Contents 1 Capital and Private Equity. · The global R&D investment $86Bn was also highest for Solar, worldwide

Painter, Kevin

159

Cost reduction of the Sun Challenger batch solar water heater: Final report  

SciTech Connect

A variety of materials and methods were investigated as a means to reduce the cost of the Sun Challenger Solar Collector. Three prototypes were constructed and tested using lower-cost methods. Test results are summarized, including heat gain, heat loss, and collection efficiency. Costs and benefits are also presented and summarized.

Stickney, B.L.

1987-05-01T23:59:59.000Z

160

Light incoherence theory revisited by Heisenberg time-energy uncertainty challenges solar cell optimization  

E-Print Network (OSTI)

Optimization of the efficiency of solar cells is a major challenge for renewable energies. Using a rigorous theoretical approach, we show that the photocurrent generated in a solar cell depends strongly on the degree of coherence of the incident light. In accordance with Heisenberg uncertainty time-energy, incoherent light at photons of carrier energy lower than the active material bandgap can be absorbed whereas coherent light at the same carrier energy cannot. We identify cases where incoherence does enhance efficiency. This result has a dramatical impact on the way solar cells must be optimized regarding sunlight. As an illustration, surface-corrugated GaAs and c-Si thin-film solar cells are considered.

Herman, Aline; Deparis, Olivier

2013-01-01T23:59:59.000Z

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


161

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

planting programme in California. Urban Forestry & UrbanForests Ecosystem Institute, California Polytechnic StateWilcox and W.A. Beckman. California Energy Commission CECPV

Levinson, Ronnen

2010-01-01T23:59:59.000Z

162

Considering Solar For Your Home? One Milwaukee Homeowner Shares Her  

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

Considering Solar For Your Home? One Milwaukee Homeowner Shares Her Considering Solar For Your Home? One Milwaukee Homeowner Shares Her Experience Considering Solar For Your Home? One Milwaukee Homeowner Shares Her Experience February 7, 2013 - 10:35am Addthis Milwaukee solar installers putting in a rooftop solar energy system on Dr. Paula Papanek's home. | Photo courtesy of Dr. Paula Papanek. Milwaukee solar installers putting in a rooftop solar energy system on Dr. Paula Papanek's home. | Photo courtesy of Dr. Paula Papanek. Residential solar installation in Milwaukee. | Photo courtesy of Dr. Paula Papanek. Residential solar installation in Milwaukee. | Photo courtesy of Dr. Paula Papanek. Milwaukee solar installers putting in a rooftop solar energy system on Dr. Paula Papanek's home. | Photo courtesy of Dr. Paula Papanek.

163

Desiccant-Based Combined Systems: Integrated Active Desiccant Rooftop Hybrid System Development and Testing Final Report- Phase 4  

SciTech Connect

This report summarizes the results of a research and development (R&D) program to design and optimize an active desiccant-vapor compression hybrid rooftop system. The primary objective was to combine the strengths of both technologies to produce a compact, high-performing, energy-efficient system that could accommodate any percentage of outdoor air and deliver essentially any required combination of temperature and humidity, or sensible heat ratio (SHR). In doing so, such a product would address the significant challenges imposed on the performance capabilities of conventional packaged rooftop equipment by standards 62 and 90.1 of the American Society of Heating, Refrigerating and Air-Conditioning Engineers. The body of work completed as part of this program built upon previous R&D efforts supported by the U.S. Department of Energy and summarized by the Phase 3b report ''Active Desiccant Dehumidification Module Integration with Rooftop Packaged HVAC Units'' (Fischer and Sand 2002), in addition to Fischer, Hallstrom, and Sand 2000; Fischer 2000; and Fischer and Sand 2004. All initial design objectives established for this development program were successfully achieved. The performance flexibility desired was accomplished by a down-sized active desiccant wheel that processes only a portion of the supply airflow, which is pre-conditioned by a novel vapor compression cycle. Variable-speed compressors are used to deliver the capacity control required by a system handling a high percentage of outdoor air. An integrated direct digital control system allows for control capabilities not generally offered by conventional packaged rooftop systems. A 3000-cfm prototype system was constructed and tested in the SEMCO engineering test laboratory in Columbia, MO, and was found to operate in an energy-efficient fashion relative to more conventional systems. Most important, the system offered the capability to independently control the supply air temperature and humidity content to provide individual sensible and latent loads required by an occupied space without over-cooling and reheating air. The product was developed using a housing construction similar to that of a conventional packaged rooftop unit. The resulting integrated active desiccant rooftop (IADR) is similar in size to a currently available conventional rooftop unit sized to provide an equivalent total cooling capacity. Unlike a conventional rooftop unit, the IADR can be operated as a dedicated outdoor air system processing 100% outdoor air, as well as a total conditioning system capable of handling any ratio of return air to outdoor air. As part of this R&D program, a detailed investigation compared the first cost and operating cost of the IADR with costs for a conventional packaged approach for an office building located in Jefferson City, MO. The results of this comparison suggest that the IADR approach, once commercialized, could be cost-competitive with existing technology--exhibiting a one-year to two-year payback period--while simultaneously offering improved humidity control, indoor air quality, and energy efficiency.

Fischer, J

2005-05-06T23:59:59.000Z

164

Optimal Solar PV Arrays Integration for Distributed Generation  

SciTech Connect

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.

Omitaomu, Olufemi A [ORNL; Li, Xueping [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

165

Assessment of Commercial Space Conditioning Technologies: Variable Capacity Rooftop Units  

Science Conference Proceedings (OSTI)

Space conditioning in U.S. commercial buildings is commonly performed by a packaged air-source rooftop unit (RTU). In recent years, heating, ventilation, and air-conditioning (HVAC) manufacturers have begun to develop RTUs with higher efficiency through the implementation of variable capacity technology. Variable capacity RTUs potentially offer electric utilities a new resource for achieving energy and peak power reduction. This document aims to serve as a resource for electric utilities in ...

2013-12-16T23:59:59.000Z

166

Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners (Revised)  

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

23 23 Revised February 2010 Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners Katharine Kollins Duke University Bethany Speer and Karlynn Cory National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-46723 Revised February 2010 Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners Katharine Kollins Duke University Bethany Speer and Karlynn Cory

167

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

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

Presentation covers the demonstration and testing of ClimaStat for improved rooftop air-conditioning efficiency at the March 15, 2012, Federal Technology Deployment Working Group meeting.

168

The solar energy industries FY 1995 appropriations recommendations for the U. S. Department of Energy: The solar commercialization challenge  

SciTech Connect

This article contains the Solar Energy Industries Association budget recommendations for DOE for the commercialization of solar energy. Areas covered are photovoltaics, solar buildings, solar thermal, and other programs such as resource assessment and integrated resource planning.

Butler, B.; Sklar, S.

1994-01-01T23:59:59.000Z

169

The Jury's In: Hillsborough County Courthouse Goes Solar | Department...  

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

County. On Friday, the county formally flipped the switch of an extensive array of solar panels mounted on the rooftop of the Old Main Courthouse Building in downtown Tampa....

170

SC: Install units produced by the high performance RTU challenge | The  

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

Technology Solutions Teams » Space Conditioning » Install units Technology Solutions Teams » Space Conditioning » Install units produced by the High Performance Rooftop Unit Challenge that meet the high performance rooftop unit specification Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Install units produced by the High Performance Rooftop Unit Challenge that meet the high performance rooftop unit specification In January 2011, the U.S. Department of Energy (DOE) joined industry partners in the Better Buildings Alliance to release a design specification for 10-ton capacity commercial air conditioners, also known as rooftop units (RTUs).

171

Identifying Challenging Operating Hours for Solar Intergration in the NV Energy System  

Science Conference Proceedings (OSTI)

Abstract-- In this paper, the ability of the Nevada (NV) Energy generation fleet to meet its system balancing requirements under different solar energy penetration scenarios is studied. System balancing requirements include capacity, ramp rate, and ramp duration requirements for load following and regulation. If, during some operating hours, system capability is insufficient to meet these requirements, there is certain probability that the balancing authority’s control and reliability performance can be compromised. These operating hours are considered as “challenging” hours. Five different solar energy integration scenarios have been studied. Simulations have shown that the NV Energy system will be potentially able to accommodate up to 942 MW of solar photovoltaic (PV) generation. However, the existing generation scheduling procedure should be adjusted to make it happen. Fast-responsive peaker units need to be used more frequently to meet the increasing ramping requirements. Thus, the NV Energy system operational cost can increase. Index Terms—Solar Generation, Renewables Integration, Balancing Process, Load Following, Regulation.

Etingov, Pavel V.; Lu, Shuai; Guo, Xinxin; Ma, Jian; Makarov, Yuri V.; Chadliev, Vladimir; Salgo, Richard

2012-05-09T23:59:59.000Z

172

Smart Solar Home System with Safety Device Low Voltage Alert  

Science Conference Proceedings (OSTI)

For many reasons Bangladeshi people are now using renewable energy. So, solar energy is the best renewable energy till now, in respect of Bangladesh. So using of solar system is common nowadays. Bangladesh Government has taken some steps to make solar ... Keywords: Smart Solar Home System (SSHS), Rooftop, Safety Device, Low voltage alert

Tawheed Hasan; Md. Faysal Nayan; Md. Asif Iqbal; Monzurul Islam

2012-03-01T23:59:59.000Z

173

Rooftop Unitary Air Conditioner with Integral Dedicated Outdoor Air System  

SciTech Connect

Energy use of rooftop and other unitary air-conditioners in commercial applications accounts for about 1 quad (10{sup 15} Btu) of primary energy use annually in the U.S. [Reference 7]. The realization that this cooling equipment accounts for the majority of commercial building cooled floorspace and the majority also of commercial building energy use has spurred development of improved-efficiency equipment as well as development of stricter standards addressing efficiency levels. Another key market driver affecting design of rooftop air-conditioning equipment has been concern regarding comfort and the control of humidity. Trends for increases in outdoor air ventilation rates in certain applications, and the increasing concern about indoor air quality problems associated with humidity levels and moisture in buildings points to a need for improved dehumidification capability in air-conditioning equipment of all types. In many cases addressing this issue exacerbates energy efficiency, and vice versa. The integrated dedicated outdoor air system configuration developed in this project addresses both energy and comfort/humidity issues.

Tiax Llc

2006-02-28T23:59:59.000Z

174

U.S. Department of Energy Solar Decathlon: Challenging Students to Build Energy Efficient, Cost-Effective, and Attractive Solar-Powered Houses  

DOE Green Energy (OSTI)

The U.S. Department of Energy Solar Decathlon challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. The winner of the competition is the team that best blends affordability, consumer appeal, and design excellence with optimal energy production and maximum efficiency. The paper discusses the solutions developed for the event. We believe that the solutions implemented for Solar Decathlon 2011 represent current trends and that by analyzing, critiquing, and exposing the solutions pursued, the industry can become better suited to address challenges of the future. Constructing a solar community using high-efficiency design and unique materials while remaining code compliant, safe, and effective results in solutions that are market relevant, important, and interesting to the industry as a whole.

Simon, J.

2012-01-01T23:59:59.000Z

175

Solar Blog | Department of Energy  

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

Blog Blog Solar Blog RSS November 4, 2010 Sen. Menendez, 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 the Solar Technologies Program at the Energy Department, shares his thoughts on the recent ribbon cutting event for the largest solar installation on a United States university campus. May 10, 2010 Five Iowa schools will receive rooftop solar panels this summer to help teach students about the technology | File Photo Solar Panels to Help Iowa Students Learn About Renewable Energy 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

176

Detection of Rooftop Cooling Unit Faults Based on Electrical Measurements  

Science Conference Proceedings (OSTI)

Non-intrusive load monitoring (NILM) is accomplished by sampling voltage and current at high rates and reducing the resulting start transients or harmonic contents to concise ''signatures''. Changes in these signatures can be used to detect, and in many cases directly diagnose, equipment and component faults associated with roof-top cooling units. Use of the NILM for fault detection and diagnosis (FDD) is important because (1) it complements other FDD schemes that are based on thermo-fluid sensors and analyses and (2) it is minimally intrusive (one measuring point in the relatively protected confines of the control panel) and therefore inherently reliable. This paper describes changes in the power signatures of fans and compressors that were found, experimentally and theoretically, to be useful for fault detection.

Armstrong, Peter R.; Laughman, C R.; Leeb, S B.; Norford, L K.

2006-01-31T23:59:59.000Z

177

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

Science Conference Proceedings (OSTI)

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.

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

2013-07-31T23:59:59.000Z

178

Solar Companies Go for the Gold with SunShot Incubator | Department...  

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

start-up is developing an automated process that uses remote sensing data to assess every rooftop in a city for its solar suitability. Another new Incubator company, Distributed...

179

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

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

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. Reducing energy...

180

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

DOE Green Energy (OSTI)

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.

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

2012-06-01T23:59:59.000Z

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


181

Boston, Massachusetts: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

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.

Not Available

2011-10-01T23:59:59.000Z

182

Field Demonstration of Active Desiccant Modules Designed to Integrate with Standard Unitary Rooftop Package Equipment - Final Report: Phase 3  

SciTech Connect

This report summarizes the investigation of two active desiccant module (ADM) pilot site installations initiated in 2001. Both pilot installations were retrofits at existing facilities served by conventional heating, ventilating, and air-conditioning (HVAC) systems that had encountered frequent humidity control, indoor air quality (IAQ), and other operational problems. Each installation involved combining a SEMCO, Inc., ADM (as described in Fischer and Sand 2002) with a standard packaged rooftop unit built by the Trane Company. A direct digital control (DDC) system integral to the ADM performed the dual function of controlling the ADM/rooftop combination and facilitating data collection, trending, and remote performance monitoring. The first installation involved providing preconditioned outdoor air to replace air exhausted from the large kitchen hood and bathrooms of a Hooters restaurant located in Rome, Georgia. This facility had previously added an additional rooftop unit in an attempt to achieve occupant comfort without success. The second involved conditioning the outdoor air delivered to each room of a wing of the Mountain Creek Inn at the Callaway Gardens resort. This hotel, designed in the ''motor lodge'' format with each room opening to the outdoors, is located in southwest Georgia. Controlling the space humidity always presented a serious challenge. Uncomfortable conditions and musty odors had caused many guests to request to move to other areas within the resort. This is the first field demonstration performed by Oak Ridge National Laboratory where significant energy savings, operating cost savings, and dramatically improved indoor environmental conditions can all be claimed as the results of a retrofit desiccant equipment field installation. The ADM/rooftop combination installed at the restaurant resulted in a reduction of about 34% in the electricity used by the building's air-conditioning system. This represents a reduction of approximately 15% in overall electrical energy consumption and a 12.5-kW reduction in peak demand. The cost of gas used for regeneration of the desiccant wheel over this period of time is estimated to be only $740, using a gas cost of $0.50 per therm--the summer rate in 2001. The estimated net savings is $5400 annually, resulting in a 1-2 year payback. It is likely that similar energy/cost savings were realized at the Callaway Gardens hotel. In this installation, however, a central plant supplied the chilled water serving fan coil units in the hotel wing retrofitted with the ADM, so it was not metered separately. Consequently, the owner could not provide actual energy consumption data specific to the facility. The energy and operating cost savings at both sites are directly attributable to higher cooling-season thermostat settings and decreased conventional system run times. These field installations were selected as an immediate and appropriate response to correct indoor humidity and fresh air ventilation problems being experienced by building occupants and owners, so no rigorous baseline-building vs. test-building energy use/operating cost savings results can be presented. The report presents several simulated comparisons between the ADM/roof HVAC approach and other equipment combinations, where both desiccant and conventional systems are modeled to provide comparable fresh air ventilation rates and indoor humidity levels. The results obtained from these simulations demonstrate convincingly the energy and operating cost savings obtainable with this hybrid desiccant/vapor-compression technology, verifying those actually seen at the pilot installations. The ADM approach is less expensive than conventional alternatives providing similar performance and indoor air quality and provides a very favorable payback (1 year or so) compared with oversized rooftop units that cannot be operated effectively with the necessary high outdoor air percentages.

Fischer, J

2004-03-15T23:59:59.000Z

183

High-Efficiency CdTe and CIGS Thin-Film Solar Cells: Highlights and Challenges  

Science Conference Proceedings (OSTI)

Thin-film photovoltaic (PV) modules of CdTe and Cu(In,Ga)Se{sub 2} (CIGS) have the potential to reach cost-effective PV-generated electricity. These technologies have transitioned from the laboratory to the market place. Pilot production and first-time manufacturing are ramping up to higher capacity and enjoying a flood of venture-capital funding. CIGS solar cells and modules have achieved 19.5% and 13% efficiencies, respectively. Likewise, CdTe cells and modules have reached 16.5% and 10.2% efficiencies, respectively. Even higher efficiencies from the laboratory and from the manufacturing line are only a matter of time. Manufacturing-line yield continues to improve and is surpassing 85%. Long-term stability has been demonstrated for both technologies; however, some failures in the field have also been observed, emphasizing the critical need for understanding degradation mechanisms and packaging options. These two thin-film technologies have a common device/module structure: substrate, base electrode, absorber, junction layer, top electrode, patterning steps for monolithic integration, and encapsulation. The monolithic integration of thin-film solar cells can lead to significant manufacturing cost reduction compared to crystalline Si technology. The CdTe and CIGS modules share common structural elements. In principle, this commonality should lead to similar manufacturing cost per unit area, and thus, the module efficiency becomes the discriminating factor that determines the cost per watt. The long-term potential of the two technologies require R&D emphasis on science and engineering-based challenges to find solutions to achieve targeted cost-effective module performance, and in-field durability. Some of the challenges are common to both, e.g., in-situ process control and diagnostics, thinner absorber, understanding degradation mechanisms, protection from water vapor, and innovation in high-speed processing and module design. Other topics are specific to the technology, such as lower-cost and fast-deposition processes for CIGS, and improved back contact and voltage for CdTe devices.

Noufi, R.; Zweibel, K.

2006-01-01T23:59:59.000Z

184

DEVELOPMENT OF 20 IEER ROOFTOP UNITS A SIMULATION STUDY  

Science Conference Proceedings (OSTI)

Based on detailed steady-state system and component modeling, we developed a rooftop unit system design, which is able to achieve IEER (Integrated Energy Efficiency Ratio) higher than 20. We modeled fin-&-tube and micro-channel heat exchangers using segment-to-segment approach, and use ARI 10-coefficient compressor map to simulate compressor performance. The system modeling is based on a component-based modeling approach, which facilitates flexible simulation of complicated system configurations. Starting with a baseline system having IEER of 16.6, we extensively investigated numerous technical options, i.e. varying compressor sizes, heat exchanger fin densities, fin-&-tube or micro-channel heat exchanger, suction line heat exchanger, desiccant wheel, tandem compressor, variable-speed compressor, and condenser evaporative pre-cooling; and developed an innovative system configuration combining a tandem compression system with a variable-speed compression system. The combined system can achieve high IEER as well as process the outdoor ventilation air over an extensive range. We successfully evaluated the design concept for a 20-ton unit as well as a 10-ton unit. All the selected components are readily accessible on the market, and we validated the performance predictions against existing RTU products at the rating condition. This paper illustrates a potentially cost-effective high IEER RTU design.

Shen, Bo [ORNL; Rice, C Keith [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)

2012-01-01T23:59:59.000Z

185

Rooftop PV Data for Better Energy Prediction Models  

Science Conference Proceedings (OSTI)

... New generations of photovoltaic (PV) roofing products utilize designs that ... Finally, the researchers are taking solar radiation measurements at the ...

2011-04-26T23:59:59.000Z

186

Solar Panels to Help Iowa Students Learn About Renewable Energy |  

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

Panels to Help Iowa Students Learn About Renewable Energy Panels to Help Iowa Students Learn About Renewable Energy Solar Panels to Help Iowa Students Learn About Renewable Energy May 10, 2010 - 10:53am Addthis Five Iowa schools will receive rooftop solar panels this summer to help teach students about the technology | File Photo Five Iowa schools will receive rooftop solar panels this summer to help teach students about the technology | File Photo Stephen Graff Former Writer & editor for Energy Empowers, EERE 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. "We really want this be an educational component to the schools'

187

Supply Curves for Solar PV-Generated Electricity for the United States  

DOE Green Energy (OSTI)

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.

Denholm, P.; Margolis, R.

2008-11-01T23:59:59.000Z

188

Estimating Rooftop Suitability for PV: A Review of Methods, Patents...  

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

assumed to be distributed throughout Puerto Rico in proportion to the population. Using solar resource data for Puerto Rico, temperature and weather data for Puerto Rico, and PV...

189

Illinois Company Implementing Solar Energy | Department of Energy  

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

Company Implementing Solar Energy Company Implementing Solar Energy Illinois Company Implementing Solar Energy March 23, 2010 - 2:00pm Addthis J.F. Electric will soon install its own solar rooftop solar panels, saving money and gaining a potential sales tool. | Photo Courtesy of J.F. Electric | J.F. Electric will soon install its own solar rooftop solar panels, saving money and gaining a potential sales tool. | Photo Courtesy of J.F. Electric | Joshua DeLung J.F. Family Limited Partnership has been awarded $191,000 through the Recovery Act toward the use of solar energy at its Lakefront Parkway property in Edwardsville, Ill., which is the company headquarters for J.F. Electric Inc. The funding will be used to install a 75-kW solar photovoltaic system on the building's roof, creating electricity on-site

190

Illinois Company Implementing Solar Energy | Department of Energy  

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

Illinois Company Implementing Solar Energy Illinois Company Implementing Solar Energy Illinois Company Implementing Solar Energy March 23, 2010 - 2:00pm Addthis J.F. Electric will soon install its own solar rooftop solar panels, saving money and gaining a potential sales tool. | Photo Courtesy of J.F. Electric | J.F. Electric will soon install its own solar rooftop solar panels, saving money and gaining a potential sales tool. | Photo Courtesy of J.F. Electric | Joshua DeLung J.F. Family Limited Partnership has been awarded $191,000 through the Recovery Act toward the use of solar energy at its Lakefront Parkway property in Edwardsville, Ill., which is the company headquarters for J.F. Electric Inc. The funding will be used to install a 75-kW solar photovoltaic system on the building's roof, creating electricity on-site

191

Solar So Simple It Is Just a Click Away | Department of Energy  

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

Solar So Simple It Is Just a Click Away Solar So Simple It Is Just a Click Away Solar So Simple It Is Just a Click Away May 6, 2013 - 10:00am Addthis Incubator 6 awardee Sun Number converts complex aerial data into an easy-to-understand solar suitability score ranging from 1 to 100, with 100 being the ideal rooftop for solar. | Photo courtesy of Sun Number. Incubator 6 awardee Sun Number converts complex aerial data into an easy-to-understand solar suitability score ranging from 1 to 100, with 100 being the ideal rooftop for solar. | Photo courtesy of Sun Number. Minh Le Minh Le Program Manager, Solar Program Interested in going solar? Check out Energy Saver to find out which solar system might be right for your home. Gone are the days when consumers had to wonder if they could put solar panels on their home, whether they were getting the best deal on their

192

The future market for residential photovoltaic systems: New perspectives on the rooftop resource base  

Science Conference Proceedings (OSTI)

The resource base of one-family houses with roofs suitable for photovoltaic applications can be estimated using a new and efficient sampling strategy combined with a statistical model. Levels of residential housing density are good predictors of rooftop suitability and can be used to make out-of-sample forecasts for a variety of geographic areas. The model is particularly useful for making forecasts for census tracts within large metropolitan areas. A large-scale field survey of rooftops in southeastern Pennsylvania indicates that a much higher proportion of roofs are suitable for rooftop systems than previously thought (in the Northeast). The survey suggests important differences from previous assumptions for such roof characteristics as area, slope, aspect, and the frequency of roof obstructions. Overall, the rooftop resource base; this paradigm rests on the dramatic difference between the central city and the suburbs in the proportion of houses with suitable roofs. The survey also demonstrates the critical role played by landscaping practices within a single urban area.

Miller, K.R.

1992-01-01T23:59:59.000Z

193

851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161  

E-Print Network (OSTI)

partners and citizen groups, working together to make rooftop solar electricity more cost-effective for all. The ESSP was one of 22 teams working under the U.S. Department of Energy's Rooftop Solar Challenge program, a nationwide effort to reduce the "soft costs" associated with installing rooftop solar electricity

194

CX-007854: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination Streamlining Solar Standards & Processes: The Southern California Rooftop Solar Challenge CX(s) Applied: A9, A11 Date: 01272012 Location(s):...

195

Green Button: Providing Consumers with Access to Their Energy...  

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

andor new home purchasers; and Solar: optimize the size and cost-effectiveness of rooftop solar panels. Although inspired by a government challenge to industry, the Green...

196

Page not found | Department of Energy  

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

Exclusion Determination Streamlining Solar Standards & Processes: The Southern California Rooftop Solar Challenge CX(s) Applied: A9, A11 Date: 01272012 Location(s): California...

197

SunShot Initiative: Past Opportunities  

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

the Current Opportunities page. Technology Solicitation Title Open Date Close Date Solar- Solar Challenge for Regional Teams to Improve Market Conditions for Rooftop PV Office of...

198

Solar  

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

The U.S. Department of Energy (DOE) leads a large network of researchers and other partners to deliver innovative solar photovoltaic and concentrating solar power technologies that will make solar...

199

SATELLITE-BASED SOLAR RESOURCE ASSESSMENT: SOCIAL, ECONOMIC AND CULTURAL CHALLENGES AND BARRIERS,  

E-Print Network (OSTI)

output during times of high demand and grid stress. The solar resource information needed to investigate the production of PV arrays coincident with actual electrical demand. 4. Management of a large dispersed PV Two investigations recently completed in the USA have uncovered opportunities for PV deployment

Perez, Richard R.

200

Solar energy research at Princeton University Universities today bear the same responsibility to confront environmental challenges  

E-Print Network (OSTI)

, including ground-source heat pumps ("geothermal"), biofuels for the central power plant, and solar electric in anticipation of increased power demands required by almost two million square feet of new development is not unique in its growth projections, but it is unique in its effort to decrease its carbon footprint

Rowley, Clarence W.

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


201

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

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

Solar Energy for All: How-To Guides Encourage Growth of Solar Solar 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 to purchase a solar energy system. Each community owner gets a share of the power generated, a credit on their utility bill, or other financial benefit. To learn more, check out A Guide to Community Shared Solar and The Solarize Guidebook. Across the country, solar installations are in demand. Still -- despite

202

Rooftop Membrane Temperature Reductions with Green Roof Technology in South-Central Texas  

E-Print Network (OSTI)

Early green roof cooling and energy reduction research in North America took place in Canada and the northern latitudes of the United States, where green roofs reduced rooftop temperatures by 70% to 90%. Less is known about green roof technology in the southern Untied States; where energy demand for cooling buildings is high, and the urban heat island effect is more pronounced. This paper reports early findings for rooftop membrane temperature reductions from 11.6-cm-deep modular green roof trays, typical of large-scaled, low-maintenance applications. Measurements observed during May, 2010 reveal that temperatures below the modular planted green roof units were 82% to 91.6% cooler compared to the surface temperatures of the control roof membrane. These findings on low-input modular green roof trays reinforce other research findings that indicate green roof technology can dramatically reduce and modify temperatures on roof deck surfaces during peak energy demand periods in hot sunny climates.

Dvorak, B.

2010-08-01T23:59:59.000Z

203

Measurement of the Equivalent Thermal Resistance of Rooftop Lawns in a Hot-Climate Wind Tunnel  

E-Print Network (OSTI)

In a very hot summer equivalent to a Guangzhou summer, the reduction of heat coming into rooms is very important with respect to thermal comfort and energy efficiency. The objective of this study is to investigate the evaporation cooling effect on a rooftop lawn. A hot-climate wind tunnel experiment was carried out in order to obtain and analyze the heat and moisture transport in the rooftop lawn. Furthermore, a calculation with the energy conservation equation was carried out using the results of the hot-climate wind tunnel experiment. The calculated equivalent thermal resistance and synthesis exterior surface heat transfer coefficient were in fairly good agreement with that in the design standard for energy efficiency of residential buildings in the hot summer and warm winter zone, while the average velocity in hot-climate wind tunnel equals the summer average outdoor velocity in Guangzhou.

Meng, Q.; Zhang, Y.; Zhang, L.

2006-01-01T23:59:59.000Z

204

Photon Sciences | About Photon Sciences | Solar  

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

Solar Fabrics? Solar Backpacks? Go Organic! Solar Fabrics? Solar Backpacks? Go Organic! « Back Ioana Gearba and Ron Pindak Ioana Gearba (right), a former researcher at the CFN, and Ron Pindak, Physical and Chemical Sciences Division Head at the NSLS, display the enhanced polythiophene blended solar cells. You've probably noticed solar panels sprouting on rooftops in your neighborhood. Solar panels are made out of multiple solar cells, which are commonly manufactured out of silicon, the same material in sand. When sunlight hits a solar panel, electrons in the silicon get agitated and flow through wires built into the panel, making electricity. Solar panels on roofs are now commonplace. But have you spotted any backpacks sporting solar cells? They're made out of organic materials - commonly polymers, or plastics, for absorbing light and transporting

205

Part-Load Performance Characterization and Energy Savings Potential of the RTU Challenge Unit: Daikin Rebel  

SciTech Connect

In 2011, the U.S. Department of Energy’s Building Technology Office (DOE’s BTO), with help from the Better Buildings Alliance (BBA) members, developed a specification for high performance rooftop air-conditioning units (RTU Challenge) with capacity ranges between 10 and 20 tons (DOE 2013). Daikin’s Rebel for the first rooftop unit system that was recognized by DOE in May 2012 as meeting the RTU Challenge specifications. This report documents the development of part-load performance curves and its use with EnergyPlus simulation tool to estimate the potential savings from use of Rebel compared to other standard options.

Wang, Weimin; Katipamula, Srinivas

2013-09-30T23:59:59.000Z

206

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

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

Making Strides to Boost the Use of Solar Energy Making Strides to Boost the Use of Solar Energy Making Strides to Boost the Use of Solar Energy November 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 Philadelphia.| Photo courtesy of Mercury Solar Solutions This photograph features the 6-kilowatt (kw) rooftop photovoltaic system that Mercury Solar Systems installed in the Lower Kensington neighborhood of Philadelphia.| Photo courtesy of Mercury Solar Solutions Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy What does this mean for me? As the price of installing residential solar drops, more Americans can tap into this renewable resource.

207

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

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

Making Strides to Boost the Use of Solar Energy Making Strides to Boost the Use of Solar Energy Making Strides to Boost the Use of Solar Energy November 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 Philadelphia.| Photo courtesy of Mercury Solar Solutions This photograph features the 6-kilowatt (kw) rooftop photovoltaic system that Mercury Solar Systems installed in the Lower Kensington neighborhood of Philadelphia.| Photo courtesy of Mercury Solar Solutions Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy What does this mean for me? As the price of installing residential solar drops, more Americans can tap into this renewable resource.

208

Cost reduction of the Sun Challenger (trade mark) batch solar water heater. Final report, 31 March 1986-30 April 1987  

SciTech Connect

A variety of materials and methods were investigated as a means to reduce the cost of the Sun Challenger Solar Collector. Three prototypes were constructed and tested using lower-cost methods. Test results are summarized, including heat gain, heat loss, and collection efficiency. Costs and benefits are also presented and summarized.

Stickney, B.L.

1987-05-01T23:59:59.000Z

209

NREL: Learning - Solar Hot Water  

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

Hot Water Hot Water Photo of solar collectors on a roof for a solar hot water system. For solar hot water systems, flat-plate solar collectors are typically installed facing south on a rooftop. The shallow water of a lake is usually warmer than the deep water. That's because the sunlight can heat the lake bottom in the shallow areas, which in turn, heats the water. It's nature's way of solar water heating. The sun can be used in basically the same way to heat water used in buildings and swimming pools. Most solar water heating systems for buildings have two main parts: a solar collector and a storage tank. The most common collector is called a flat-plate collector. Mounted on the roof, it consists of a thin, flat, rectangular box with a transparent cover that faces the sun. Small tubes

210

DOE Solar Decathlon: 2007 Technical Resources  

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

This photo offers a birds-eye view of a two-part house. On the roof of the house's rectangular core shimmers a pool of water. To the right of the pool slants a row of windows over the house's open living space. The rooftop pond reflects light back into the open space. Visitors to the Solar Decathlon can be seen entering the house and in the background. This photo offers a birds-eye view of a two-part house. On the roof of the house's rectangular core shimmers a pool of water. To the right of the pool slants a row of windows over the house's open living space. The rooftop pond reflects light back into the open space. Visitors to the Solar Decathlon can be seen entering the house and in the background. The 2007 Solar Decathlon New York Institute of Technology house features a rooftop pond for the house's geothermal heat pump, rather than a traditional underground source, which can't be used on the National Mall. Solar Decathlon 2007 Technical Resources From journal entries, final scores, and a summary of media hits, to technology innovations and house drawings, the 2007 Solar Decathlon technical resources posted on this page provide insight and guidance to the

211

Solar and the City: Online Map to Show NYC's Solar Potential | Department  

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

Solar and the City: Online Map to Show NYC's Solar Potential Solar and the City: Online Map to Show NYC's Solar Potential Solar and the City: Online Map to Show NYC's Solar Potential October 13, 2010 - 11:32am Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this project do? The online tool allows people to determine solar potential of homes and businesses. Think Google Maps for solar. Type in an address and instead of directions to a restaurant or movie theater, a home's solar potential comes up-and not just that, but energy and cost savings too. San Francisco and Boston have solar maps, and soon New York City will publish its own extensive online tool. That means starting early next year people will be able to determine how much solar power can be obtained from the rooftops of their homes or

212

Active Desiccant Dehumidification Module Integration with Rooftop Packaged HVAC  

Science Conference Proceedings (OSTI)

This report summarizes a research and development program that produced a stand-alone active desiccant module (ADM) that can be easily integrated with new or existing packaged cooling equipment. The program also produced a fully integrated hybrid system, combining the active desiccant section with a conventional direct expansion air-conditioning unit, that resulted in a compact, low-cost, energy-efficient end product. Based upon the results of this investigation, both systems were determined to be highly viable products for commercialization. Major challenges--including wheel development, compact packaging, regeneration burner development, control optimization, and low-cost design--were all successfully addressed by the final prototypes produced and tested as part of this program. Extensive laboratory testing was completed in the SEMCO laboratory for each of the two ADM system approaches. This testing confirmed the performance of the ADM systems to be attractive compared with that of alternate approaches currently used to precondition outdoor air, where a return air path is not readily available for passive desiccant recovery or where first cost is the primary design criterion. Photographs, schematics, and performance maps are provided for the ADM systems that were developed; and many of the control advantages are discussed. Based upon the positive results of this research and development program, field tests are under way for fully instrumented pilot installations of ADM systems in both a hotel/motel and a restaurant.

Fischer, J

2002-04-17T23:59:59.000Z

213

Presented at the 21th European Photovoltaic Solar Energy Conference, Dresden, Germany, 4-8 September 2006  

E-Print Network (OSTI)

Presented at the 21th European Photovoltaic Solar Energy Conference, Dresden, Germany, 4-8 September 2006 A COST AND ENVIRONMENTAL IMPACT COMPARISON OF GRID-CONNECTED ROOFTOP AND GROUND-BASED PV Centre of the Netherlands ECN, Unit Solar Energy, P.O. Box 1, 1755 ZG PETTEN, the Netherlands E.A. Alsema

214

Proceedings of the 13th Sede Boqer Symposium on Solar Electricity Production 1 October 31-November 1, 2005  

E-Print Network (OSTI)

Proceedings of the 13th Sede Boqer Symposium on Solar Electricity Production 1 October 31-November derived #12;2 Proceedings of the 13th Sede Boqer Symposium on Solar Electricity Production October 31. The picture shows a 3.6 KWpeak rooftop mounted system in Magdeburg/Germany (Picture taken by the installer

Heinemann, Detlev

215

Solar Energy Systems - Research - Biomimetic Solar Fuels  

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

using renewable resources such as sunlight. They also offer an enticing way to store solar energy in a very compact form. Challenges in solar fuels production lie in...

216

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

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

Demonstration and Testing of ClimaStat® for Improved Rooftop Air-Conditioning Efficiency Presented at IA Technology Deployment Working Group Meeting March 15, 2012 By Dan Howett, PE Oak Ridge National Laboratory Demonstration/Testing of ClimaStat ® for Improved Efficiency of RTU Air Conditioners * Technology from Advantek Consulting - Patented by Dr. Michael West in 2003. (US Patent #6427454) - Originally demonstrated under DOE's Inventions & Innovations program. * Current demonstration sponsored by DOD's ESTCP program * Uses off-the-shelf components to either... - Modify existing packaged air conditioners, or - Incorporate changes into new RTU equipment before installation * Initial tests show 15% improvement in HVAC efficiency.

217

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

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

Demonstration and Testing of ClimaStat® for Improved Rooftop Air-Conditioning Efficiency Presented at IA Technology Deployment Working Group Meeting March 15, 2012 By Dan Howett, PE Oak Ridge National Laboratory Demonstration/Testing of ClimaStat ® for Improved Efficiency of RTU Air Conditioners * Technology from Advantek Consulting - Patented by Dr. Michael West in 2003. (US Patent #6427454) - Originally demonstrated under DOE's Inventions & Innovations program. * Current demonstration sponsored by DOD's ESTCP program * Uses off-the-shelf components to either... - Modify existing packaged air conditioners, or - Incorporate changes into new RTU equipment before installation * Initial tests show 15% improvement in HVAC efficiency.

218

Potential for Solar Energy on Rooftops in the Municipality of Uppsala.  

E-Print Network (OSTI)

?? Uppsala City Council has set up milestones for each decade from year 2020 to 2050 to steadily reduce the greenhouse gas emissions per capita… (more)

Hammam, Jasmine; Johansson,; Sara

2013-01-01T23:59:59.000Z

219

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

SciTech Connect

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.

Dwyer, Stephen F.

2013-03-01T23:59:59.000Z

220

Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery  

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

An Environmental Assessment (EA) has been prepared under the direction of an interdisciplinary team analyzing theproposed construction of a Photovoltaic System at the Calvertion National Cemetery ...

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


221

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

E-Print Network (OSTI)

planting programme in California. Urban Forestry & UrbanCEC PV Calculator 2.3. California Energy Commission. Onlinecalculator.html CPRC. 2008. California Public Resources Code

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

222

High-Efficiency CdTe and CIGS Thin-Film Solar Cells: Highlights and Challenges; Preprint  

DOE Green Energy (OSTI)

Thin-film photovoltaic (PV) modules of CdTe and Cu(In,Ga)Se2 (CIGS) have the potential to reach cost-effective PV-generated electricity. These technologies have transitioned from the laboratory to the market place. Pilot production and first-time manufacturing are ramping up to higher capacity and enjoying a flood of venture-capital funding. CIGS solar cells and modules have achieved 19.5% and 13% efficiencies, respectively. Likewise, CdTe cells and modules have reached 16.5% and 10.2% efficiencies, respectively. Even higher efficiencies from the laboratory and from the manufacturing line are only a matter of time. Manufacturing-line yield continues to improve and is surpassing 85%. Long-term stability has been demonstrated for both technologies; however, some failures in the field have also been observed, emphasizing the critical need for understanding degradation mechanisms and packaging options. The long-term potential of the two technologies require R&D emphasis on science and engineering-based challenges to find solutions to achieve targeted cost-effective module performance, and in-field durability. Some of the challenges are common to both, e.g., in-situ process control and diagnostics, thinner absorber, understanding degradation mechanisms, protection from water vapor, and innovation in high-speed processing and module design. Other topics are specific to the technology, such as lower-cost and fast-deposition processes for CIGS, and improved back contact and voltage for CdTe devices.

Noufi, R.; Zweibel, K.

2006-05-01T23:59:59.000Z

223

Solar Water Heating System Maintenance and Repair | Department of Energy  

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

Water Heating System Maintenance and Repair 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 operate at peak efficiency. | Photo from iStockphoto.com Rooftop solar water heaters need regular maintenance to operate at peak efficiency. | Photo from iStockphoto.com Solar energy systems require periodic inspections and routine maintenance to keep them operating efficiently. Also, from time to time, components may need repair or replacement. You should also take steps to prevent scaling, corrosion, and freezing. You might be able to handle some of the inspections and maintenance tasks on your own, but others may require a qualified technician. Ask for a cost estimate in writing before having any work done. For some systems, it may

224

Gainesville Regional Utilities - Solar Feed-In Tariff | Department of  

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

Gainesville Regional Utilities - Solar Feed-In Tariff Gainesville Regional Utilities - Solar Feed-In Tariff Gainesville Regional Utilities - Solar Feed-In Tariff < Back Eligibility Commercial Fed. Government Industrial Institutional Local Government Nonprofit Residential Schools State Government Tribal Government Savings Category Solar Buying & Making Electricity Program Info Start Date 03/01/2009 State Florida Program Type Performance-Based Incentive Rebate Amount 2013 Contracts: Rooftop- or pavement-mounted systems Ground-mounted systems Rooftop- or pavement-mounted systems >10kW to 300kW: $0.18/kWh Ground-mounted systems >10kW to 25kW: $0.18/kWh Ground-mounted systems >25kW to 1,000kW: $0.15/kWh Provider Gainesville Regional Utilities NOTE: This program will re-open to new applicants from January 4, 2013

225

Page not found | Department of Energy  

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

results. Download CX-007868: Categorical Exclusion Determination SunShot Initiative: Rooftop Solar Challenge to Induce Market Transformation CX(s) Applied: A9, A11 Date: 01...

226

Accelerating Offshore Wind Development | Department of Energy  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

227

Creating an Energy Innovation Ecosystem | Department of Energy  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

228

Alternative Fueling Station Locator | Department of Energy  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

229

2013 National Science Bowl Finalists | Department of Energy  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

230

Clean Cities National Parks Initiative | Department of Energy  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

231

Testing America's Wind Turbines | Department of Energy  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

232

U.S. Hydropower Potential from Existing Non-powered Dams | Department...  

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

Rooftop Solar Challenge NEUP Award Recipients NEUP Award Recipients 2011 Grants for Offshore Wind Power 2011 Grants for Offshore Wind Power 2011 Grants for Advanced...

233

CX-007883: Categorical Exclusion Determination | Department of...  

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

Determination CX-007883: Categorical Exclusion Determination SunShot Initiative: Rooftop Solar Challenge to Induce Market Transformation CX(s) Applied: A9, A11 Date: 01272012...

234

CX-007868: Categorical Exclusion Determination | Department of...  

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

Determination CX-007868: Categorical Exclusion Determination SunShot Initiative: Rooftop Solar Challenge to Induce Market Transformation CX(s) Applied: A9, A11 Date: 01272012...

235

CX-007877: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination Rooftop Solar Challenge: Inducing Photovoltaic Market Transformation in Tennessee CX(s) Applied: A9, A11 Date: 01272012 Location(s):...

236

Assessment of Solar Energy Potential on Existing Buildings  

Science Conference Proceedings (OSTI)

The primary goal of this research project discussed in this report is to assess the solar energy potential incident on Oahu's existing building rooftops. This assessment will provide reliable building-integrated and building-applied solar energy opportunities data for the Hawaiian Electric Company INC (HECO), its district, and the University of Hawaii. The first phase of the project (Phase I), is to provide the opportunity to develop and test the research protocols and establish the procedural methods th...

2004-10-25T23:59:59.000Z

237

Fundamental Challenges in Solar Energy Conversion: Video Presentations from the 2010 Interactive Workshop for the DOE EFRC Community  

DOE Data Explorer (OSTI)

•\tThird Generation Photovoltaics Challenges, Christiana Hornsberg (Arizona State University), 53:48 runtime

238

Developing Market Opportunities for Flexible Rooftop Applications of PV Using Flexible CIGS Technology: Market Considerations  

SciTech Connect

There has been a recent upsurge in developments for building-integrated phototovoltaics (BiPV) roof top materials based on CIGS. Several new companies have increased their presence and are looking to bring products to market for this application in 2011. For roof-top application, there are significant key requirements beyond just having good conversion efficiency. Other attributes include lightweight, as well as moisture-proof, and fully functionally reliable. The companies bringing these new BIPV/BAPV products need to ensure functionality with a rigorous series of tests, and have an extensive set of 'torture' tests to validate the capability. There is a convergence of form, aesthetics, and physics to ensure that the CIGS BiPV deliver on their promises. This article will cover the developments in this segment of the BiPV market and delve into the specific tests and measurements needed to characterize the products. The potential market sizes are evaluated and the technical considerations developed.

Sabnani, L.; Skumanich, A.; Ryabova, E.; Noufi, R.

2011-01-01T23:59:59.000Z

239

Development of 20 IEER Rooftop Units System Modeling and Building Energy Simulations  

Science Conference Proceedings (OSTI)

Based on detailed steady-state system and component modeling, we developed a rooftop unit system design, which is able to achieve IEER (Integrated Energy Efficiency Ratio) higher than 20. We modeled fin-&-tube and micro-channel heat exchangers using segment-to-segment approach, and use AHRI 10-coefficient compressor map to simulate compressor performance. The system modeling is based on a component-based modeling approach, which facilitates flexible simulation of complicated system configurations. Starting with a baseline system having IEER of 16.6, we extensively investigated numerous technical options, i.e. varying compressor sizes, heat exchanger fin densities, fin-&-tube or micro-channel heat exchanger, suction line heat exchanger, desiccant wheel, tandem compressor, variable-speed compressor, and condenser evaporative pre-cooling; and developed an innovative system configuration combining a tandem compression system with a variable-speed compression system. The combined system can achieve high IEER as well as process the outdoor ventilation air over an extensive range. We successfully evaluated the design concept for a 20-ton (70.4 kW) unit as well as a 10-ton (35.2 kW) unit. All the selected components are readily accessible on the market, and we validated the performance predictions against existing Rooftop Unit (RTU) products at the rating condition. This paper illustrates a potentially cost-effective high IEER RTU design. In addtion, we conducted extensive building energy simulations using EnergyPlus to predict seasonal energy saving potentials and peak power reductions using the High IEER RTU in sixteen US cities, in comparison to a RTU with a minimum efficiency.

Shen, Bo [ORNL; Rice, C Keith [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)

2013-01-01T23:59:59.000Z

240

Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic  

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

Ground mounted solar Ground mounted solar photovoltaic power at San Joaquin National Cemetery Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic power at San Joaquin National Cemetery An Environmental Assessment (EA) has been prepared under the direction of an interdisciplinary team analyzing theproposed construction of a Photovoltaic System at the San Joaquin National Cemetery (SNC) in San Joaquin,Calofornia. CX rulemaking files More Documents & Publications Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery Department of Energy Technical Support Document National Environmental Policy Act Implementing Procedures Supplement to Notice of Proposed Rulemaking Proposed Changes and Supplemental Supporting Basis

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


241

Broward County Online Solar Permitting (Florida) | Department of Energy  

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

Broward County Online Solar Permitting (Florida) Broward County Online Solar Permitting (Florida) Broward County Online Solar Permitting (Florida) < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Program Info State Florida Program Type Solar/Wind Permitting Standards Provider Unincorporated Broward County 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 are governed by a participating municipality. The online permitting system is designed to provide a one-stop solar permitting process with a single application form, electronic review and approval, and flat fee. Applicants can use this system to choose from pre-approved and pre-engineered solar panel mounting installation designs,

242

Solar Rights Law | Department of Energy  

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

You are here You are here Home » Solar Rights Law Solar Rights Law < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Program Info State Delaware Program Type Solar/Wind Access Policy In July 2009 Delaware enacted legislation ([http://www.legis.delaware.gov/LIS/LIS145.NSF/b51f4b5053c30a5c85257448004... SS 1 for S.B. 49]) prohibiting private covenants (i.e., homeowner's association rules) restricting the use of solar energy systems on residential rooftops. The law specifically prohibits any "covenant, restriction, or condition contained in a deed, contract or other legal instrument which affects the transfer, sale or any other interest in real property that prohibits or unreasonably restricts the owner of the property from using a roof mounted system for obtaining solar energy on his or her

243

Demonstration of Energy Savings of Cool Roofs  

E-Print Network (OSTI)

logging system, the rooftop solar reflectance was measuredand rooftop layers, and a weather tower to measure solarand rooftop layers, and a weather tower to measure solar

Konopacki, S.

2010-01-01T23:59:59.000Z

244

Exploring How Municipal Utilities Fund Solar Energy Projects Webinar |  

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

Exploring How Municipal Utilities Fund Solar Energy Projects Exploring How Municipal Utilities Fund Solar Energy Projects Webinar Exploring How Municipal Utilities Fund Solar Energy Projects Webinar February 19, 2013 1:00PM MST Webinar This free webinar presented by the DOE Office of Energy Efficiency and Renewable Energy will take place on February 19, 2013, from 1-2:15 p.m. MST. It will provide information on Concord Light, the municipal electric utility serving Concord, Massachusetts, and their solar photovoltaic (PV) rebate program. Austin Energy will also discuss their innovative "Residential Solar Rate," which replaced net energy metering based on a value of solar analysis. Funding Solar PV Rebates with Utility Cost Savings Concord Light provides rebates to customers who install rooftop or ground-mounted solar systems on their property. The utility funds these

245

Law and Norms in Collective Action: Maximizing Social Influence to Minimize Carbon Emissions  

E-Print Network (OSTI)

For instance, installing rooftop solar panels, buying a newit as less visible than rooftop solar panels or hybrid cars,

Ela, Jed S.

2009-01-01T23:59:59.000Z

246

Solar Energy Generation in Three Dimensions  

E-Print Network (OSTI)

Optimizing the conversion of solar energy to electricity is central to the World's future energy economy. Flat photovoltaic panels are commonly deployed in residential and commercial rooftop installations without sun tracking systems and using simple installation guidelines to optimize solar energy collection. Large-scale solar energy generation plants use bulky and expensive sun trackers to avoid cosine losses from photovoltaic panels or to concentrate sunlight with mirrors onto heating fluids.[1,2] However, none of these systems take advantage of the three-dimensional nature of our biosphere, so that solar energy collection largely occurs on flat structures in contrast with what is commonly observed in Nature.[3,4] Here we formulate, solve computationally and study experimentally the problem of collecting solar energy in three-dimensions.[5] We demonstrate that absorbers and reflectors can be combined in the absence of sun tracking to build three-dimensional photovoltaic (3DPV) structures that can generate ...

Bernardi, Marco; Wan, Jin H; Villalon, Rachelle; Grossman, Jeffrey C

2011-01-01T23:59:59.000Z

247

Solar energy for a community recreation center  

Science Conference Proceedings (OSTI)

A 58,000 ft/sup 2/ recreation center in Shenandoah, Georgia is described. Rooftop solar collectors and reflectors serve as a basis for the active solar heating and cooling systems. The recreation center clearly demonstrates the technical feasibility of solar application in a recreation setting; economically, however, results are shown to be mixed. Although effective in the heating mode, solar cooling is considered as questionable in terms of a reasonable payoff period. A computer model predicts a payoff period of 11 years based on 1977 energy prices. The design and construction costs of the solar heating and cooling system ($726,000) was 90% financed by ERDA. A hockey-size ice rink and a gymnasium plus locker rooms and meeting rooms comprised the major part of the floor space. Problems encountered and operation of the facility are described. (MJJ)

Libman, D.E.

1980-01-01T23:59:59.000Z

248

February 19, 2013 Webinar: Exploring How Municipal Utilities Fund Solar  

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

February 19, 2013 Webinar: Exploring How Municipal Utilities Fund February 19, 2013 Webinar: Exploring How Municipal Utilities Fund Solar Energy Projects February 19, 2013 Webinar: Exploring How Municipal Utilities Fund Solar Energy Projects This webinar was held February 19, 2013, and provided information on Concord Light, the municipal electric utility serving Concord, Massachusetts, and their solar photovoltaic (PV) rebate program. Austin Energy also discussed their innovative "Residential Solar Rate," which replaced net energy metering based on a value of solar analysis. Download the presentations below, watch the webinar (WMV 148 MB), or view the text version. Find more CommRE webinars. Funding Solar PV Rebates with Utility Cost Savings Concord Light provides rebates to customers who install rooftop or ground-mounted solar systems on their property. The utility funds these

249

Western Wind and Solar Integration Study (Fact Sheet)  

DOE Green Energy (OSTI)

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.

Not Available

2012-09-01T23:59:59.000Z

250

Very Large-Scale Deployment of Grid-Connected Solar Photovoltaics in the United States: Challenges and Opportunities; Preprint  

SciTech Connect

This paper analyzes the potential for solar photovoltaics (PV) to be deployed on a very large scale and provide a large fraction of a system's electricity. It explicitly examines how the hourly availability of PV interacts with the limited flexibility of traditional electricity generation plants. The authors found that, under high penetration levels and existing grid-operation procedures and rules, the system will have excess PV generation during certain periods of the year. This excess PV generation results in increased costs, which can increase dramatically when PV provides on the order of 10%-15% of total electricity demand in systems that are heavily dependent on inflexible baseload steam plants. Measures to increase penetration of PV are also discussed, including increased system flexibility, increased dispatchable load, and energy storage.

Denholm, P.; Margolis, R.

2006-04-01T23:59:59.000Z

251

Very Large-Scale Deployment of Grid-Connected Solar Photovoltaics in the United States: Challenges and Opportunities; Preprint  

DOE Green Energy (OSTI)

This paper analyzes the potential for solar photovoltaics (PV) to be deployed on a very large scale and provide a large fraction of a system's electricity. It explicitly examines how the hourly availability of PV interacts with the limited flexibility of traditional electricity generation plants. The authors found that, under high penetration levels and existing grid-operation procedures and rules, the system will have excess PV generation during certain periods of the year. This excess PV generation results in increased costs, which can increase dramatically when PV provides on the order of 10%-15% of total electricity demand in systems that are heavily dependent on inflexible baseload steam plants. Measures to increase penetration of PV are also discussed, including increased system flexibility, increased dispatchable load, and energy storage.

Denholm, P.; Margolis, R.

2006-04-01T23:59:59.000Z

252

Reversal-free CaIIH profiles: a challenge for solar chromosphere modeling in quiet inter-network  

E-Print Network (OSTI)

We study chromospheric emission to understand the temperature stratification in the solar chromosphere. We observed the intensity profile of the CaIIH line in a quiet Sun region close to the disk center at the German Vacuum Tower Telescope. We analyze over 10^5 line profiles from inter-network regions. For comparison with the observed profiles, we synthesize spectra for a variety of model atmospheres with a non local thermodynamic equilibrium (NLTE) radiative transfer code. A fraction of about 25% of the observed CaIIH line profiles do not show a measurable emission peak in H_{2v} and H_{2r} wavelength bands (reversal-free). All of the chosen model atmospheres with a temperature rise fail to reproduce such profiles. On the other hand, the synthetic calcium profile of a model atmosphere that has a monotonic decline of the temperature with height shows a reversal-free profile that has much lower intensities than any observed line profile. The observed reversal-free profiles indicate the existence of cool patches in the interior of chromospheric network cells, at least for short time intervals. Our finding is not only in conflict with a full-time hot chromosphere, but also with a very cool chromosphere as found in some dynamic simulations.

R. Rezaei; J. H. M. J. Bruls; W. Schmidt; C. Beck; W. Kalkofen; R. Schlichenmaier

2008-04-15T23:59:59.000Z

253

An investigation of the air flow structure over a rooftop in the turbulent atmospheric boundary layer  

E-Print Network (OSTI)

by DEMROES weather station. Solar Radiation Temperaturesolar radiation and temperature difference between roof surface and air captured by DEMROES weathersolar radiation and temperature difference between roof surface and air captured by DEMROES weather

Hayes, William Joseph

2010-01-01T23:59:59.000Z

254

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

SciTech Connect

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.

Richards, Elizabeth H.; Schindel, Kay (City of Madison, WI); Bosiljevac, Tom; Dwyer, Stephen F.; Lindau, William (Lindau Companies, Inc., Hudson, WI); Harper, Alan (City of Madison, WI)

2011-12-01T23:59:59.000Z

255

Energy Archives | Page 8 of 10 | Data.gov  

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

7, 2011 America's Home Energy Education Challenge November 7, 2011 Apps for the Environment November 7, 2011 Rooftop Solar Challenge November 7, 2011 Page 8 of 10 Previous 1 ......

256

Field Demonstration of a High-Efficiency Packaged Rooftop Air Conditioning Unit at Fort Gordon, Augusta, GA  

Science Conference Proceedings (OSTI)

As part of a larger program targeting the market transformation of packaged rooftop air conditioning, five high-efficiency rooftop air conditioning products were selected in 2002 by the U.S. Department of Energy (DOE) under the Unitary Air Conditioner (UAC) Technology Procurement (http://www.pnl.gov/uac). In February 2003, Fort Gordon in Augusta, Georgia was chosen as the demonstration site. With the goal of validating the field performance and operation of one of the awarded products, a 10-ton high-efficiency packaged rooftop unit (RTU) manufactured by Global Energy Group (GEG) was installed at Fort Gordon in October 2003. Following equipment installation, power metering, air- and refrigerant-side instrumentation was installed on the GEG RTU and a 4-year old typical-efficiency 20-ton RTU manufactured by AAON . The GEG and AAON units were instrumented identically and operated May through July, 2005, to observe performance under a range of conditions. Based on the data collected as part of this demonstration, the GEG equipment performed at least 8% better in stage-1 (single compressor running) cooling and at least 16% better in stage-2 (both compressors running) than the baseline AAON equipment. Performance comparisons are based on what we call application EER normalized to equivalent specific fan power. The full-load, specific-fan-power-normalized application EERs at ARI design conditions were 10.48 Btu/Wh for the GEG and 9.00 Btu/Wh for the baseline machine. With a cost premium of nearly 50%, and slightly higher maintenance costs, the life-cycle cost analysis shows that the GEG technology pays for itself--a positive net-present value (NPV)--only in climates and buildings with long cooling seasons. Manufacture of this equipment on a larger scale can be expected to reduce costs to the point where it is more broadly cost-effective. The assumed 10-ton baseline and new-technology unit costs are $3824.00 and $5525.00 respectively. If the new technology cost is assumed to drop as sales increase to $4674.50 for a 10-ton unit (i.e. the original cost difference is halved), the life-cycle costs improve. A grid of first cost, annual maintenance cost and electricity price is enumerated and the results presented in the report show the sensitivity of life cycle cost to these three financial parameters in each of eight different climates.

Armstrong, Peter R.; Sullivan, Gregory P.; Parker, Graham B.

2006-03-31T23:59:59.000Z

257

Field Test and Performance Verification: Integrated Active Desiccant Rooftop Hybrid System Installed in a School - Final Report: Phase 4A  

SciTech Connect

This report summarizes the results of a field verification pilot site investigation that involved the installation of a hybrid integrated active desiccant/vapor-compression rooftop heating, ventilation, and air-conditioning (HVAC) unit at an elementary school in the Atlanta Georgia area. For years, the school had experienced serious humidity and indoor air quality (IAQ) problems that had resulted in occupant complaints and microbial (mold) remediation. The outdoor air louvers of the original HVAC units had been closed in an attempt to improve humidity control within the space. The existing vapor compression variable air volume system was replaced by the integrated active desiccant rooftop (IADR) system that was described in detail in an Oak Ridge National Laboratory (ORNL) report published in 2004 (Fischer and Sand 2004). The IADR system and all space conditions have been monitored remotely for more than a year. The hybrid system was able to maintain both the space temperature and humidity as desired while delivering the outdoor air ventilation rate required by American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 62. The performance level of the IADR unit and the overall system energy efficiency was measured and found to be very high. A comprehensive IAQ investigation was completed by the Georgia Tech Research Institute before and after the system retrofit. Before-and-after data resulting from this investigation confirmed a significant improvement in IAQ, humidity control, and occupant comfort. These observations were reported by building occupants and are echoed in a letter to ORNL from the school district energy manager. The IADR system was easily retrofitted in place of the original rooftop system using a custom curb adapter. All work was completed in-house by the school's maintenance staff over one weekend. A subsequent cost analysis completed for the school district by the design engineer of record concluded that the IADR system being investigated was actually less expensive to install than other less-efficient options, most of which were unable to deliver the required ventilation while maintaining the desired space humidity levels.

Fischer, J

2005-12-21T23:59:59.000Z

258

Rooftop PV system. PV:BONUS Phase 3B, final technical report  

SciTech Connect

Under the PV:BONUS Program, ECD and United Solar developed, demonstrated and commercialized two new lightweight, flexible BIPV modules specifically designed as replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and can be used to address the even larger roofing-replacement market. An important design feature of these modules, which minimizes the installation and balance-of-system costs, is their ability to be installed by conventional roofing contractors without special training. The modules are fabricated from high-efficiency, triple-junction spectrum-splitting a-Si alloy solar cells developed by ECD and United Solar. These cells are produced on thin, flexible stainless steel substrates and encapsulated with polymer materials. The Phase 3 program began in August 1995. The principal tasks and goals of this program, which have all been successfully completed by ECD and United Solar, are described in the body and appendices of this report.

1998-11-01T23:59:59.000Z

259

DOE Solar Decathlon: News Blog » Blog Archive » Five Questions for  

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

Five Questions for Richard King, Solar Decathlon Director Five Questions for Richard King, Solar Decathlon Director Wednesday, September 25, 2013 By Alexis Powers Richard King is the founder and director of the U.S. Department of Energy Solar Decathlon. We asked him five (okay, six) questions to learn more about him and his role. 1. When was your first Solar Decathlon? I first had the idea to launch a student-centered solar competition in 1999. I had been working at the U.S. Department of Energy (DOE) for 10 years conducting research on solar photovoltaic systems. We had developed highly reliable solar panels, but few people trusted them or thought they looked appealing on rooftops. Because the market barriers had a lot to do with perception and lack of knowledge, I turned my attention to education. How can we educate more homeowners, and how can we design and build

260

OUT Success Stories: Solar Roofing Shingles  

DOE Green Energy (OSTI)

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.

Johnson, N.

2000-08-31T23:59:59.000Z

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


261

OUT Success Stories: Solar Roofing Shingles  

DOE R&D Accomplishments (OSTI)

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.

Johnson, N.

2000-08-00T23:59:59.000Z

262

Advanced Energy Technologies: Solar Energy and Storage  

Science Conference Proceedings (OSTI)

Advanced Energy Technologies: Solar Energy and Storage (+18 FTE, +$7,500,000). image: Shutterstock, copyright Chayne Gregg. Challenge. ...

2011-10-11T23:59:59.000Z

263

U.S. Department of Energy Solar Decathlon 2013 and XPO Volunteer...  

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

Training Welcome Solar Decathlon Volunteers and Interns What Is the U.S. Department of Energy Solar Decathlon? The Solar Decathlon challenges collegiate teams to design, build,...

264

Vehicle Technologies Office: Workplace Charging Challenge Partner...  

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

Ambassadors Resources Community and Fleet Readiness Workforce Development Plug-in Electric Vehicle Basics Workplace Charging Challenge Partner: CFV Solar Test Laboratory,...

265

Global Solar Market - 2009 vs. Today  

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

*key to Solyndra's competitors 79kg 55kg Italy feed-in tariff Large rooftop: 0.42kWh Large rooftop: 0.30kWh Germany feed-in tariff Large rooftop: 0.40kWh Large...

266

Seismological challenges for stellar structure  

E-Print Network (OSTI)

Helioseismology has provided very detailed information about the solar interior, and extensive data on a large number of stars, although at less detail, are promised by the ongoing and upcoming asteroseismic projects. In the solar case there remain serious challenges in understanding the inferred solar structure, particularly in the light of the revised determinations of the solar surface composition. Also, a secure understanding of the origins of solar rotation as inferred from helioseismology, both in the radiative interior and in the convection zone, is still missing. In the stellar case challenges are certain to appear as the data allow more detailed inferences of the properties of stellar cores. Large remaining uncertainties in modelling concerns the properties of convective cores and other processes that may cause mixing. As a result of developing asteroseismic signatures addressing these and other issues, we can look forward to a highly challenging, and hence exciting, era of stellar astrophysics.

Christensen-Dalsgaard, J

2010-01-01T23:59:59.000Z

267

Power Challenges of Large Scale Research Infrastructures: the Square Kilometer Array and Solar Energy Integration; Towards a zero-carbon footprint next generation telescope  

E-Print Network (OSTI)

The Square Kilometer Array (SKA) will be the largest Global science project of the next two decades. It will encompass a sensor network dedicated to radioastronomy, covering two continents. It will be constructed in remote areas of South Africa and Australia, spreading over 3000Km, in high solar irradiance latitudes. Solar Power supply is therefore an option to power supply the SKA and contribute to a zero carbon footprint next generation telescope. Here we outline the major characteristics of the SKA and some innovation approaches on thermal solar energy Integration with SKA prototypes.

Barbosa, Domingos; Ruiz, Valeriano; Silva, Manuel; Verdes-Montenegro, Lourdes; Santander-Vela, Juande; Maia, Dalmiro; Antón, Sonia; van Ardenne, Arnold; Vetter, Matthias; Kramer, Michael; Keller, Reinhard; Pereira, Nuno; Silva, Vitor

2012-01-01T23:59:59.000Z

268

Challenges in Integrating Renewable Technologies  

E-Print Network (OSTI)

PV, solar thermal, and wave. Breakthroughs are also needed in large-scale energy storage technologies reliability and econ- omy. The challenges of integrating high penetrations of renewable energy technologies

269

BATTERY-POWERED, ELECTRIC-DRIVE VEHICLES PROVIDING BUFFER STORAGE FOR PV CAPACITY VALUE  

E-Print Network (OSTI)

installed over 1.5 MW of rooftop PV [2]. These systems generate value primarily through the energy produced and the intermittent nature of the solar resource create challenges to realizing the capacity value of PV installations

Perez, Richard R.

270

SunShot Initiative: Operations and Maintenance  

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

of the awardees, funded by SunShot, that are working to establish O&M best practices: Rooftop Solar Challenge Clean Power Finance (Incubator 6) Tigo (Incubator 6) These...

271

Cyrus Wadia | Department of Energy  

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

for Clean Energy and Materials R&D, The White House Office of Science and Technology Policy Most Recent Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun November...

272

Regional Per Capita Solar Electric Footprint for the United States  

SciTech Connect

In this report, we quantify the state-by-state per-capita 'solar electric footprint' for the United States. We use state-level data on population, electricity consumption, economic activity and solar insolation, along with solar photovoltaic (PV) array packing density data to develop a range of estimates of the solar electric footprint. We find that the solar electric footprint, defined as the land area required to supply all end-use electricity from solar photovoltaics, is about 181 m2 per person in the United States. Two key factors that influence the magnitude of the state-level solar electric footprint include how industrial energy is allocated (based on location of use vs. where goods are consumed) and the assumed distribution of PV configurations (flat rooftop vs. fixed tilt vs. tracking). The solar electric footprint is about 0.6% of the total land area of the United States with state-level estimates ranging from less than 0.1% for Wyoming to about 9% for New Jersey. We also compare the solar electric footprint to a number of other land uses. For example, we find that the solar electric footprint is equal to less than 2% of the land dedicated to cropland and grazing in the United States.

Denholm, P.; Margolis, R.

2007-12-01T23:59:59.000Z

273

Regional Per Capita Solar Electric Footprint for the United States  

DOE Green Energy (OSTI)

In this report, we quantify the state-by-state per-capita 'solar electric footprint' for the United States. We use state-level data on population, electricity consumption, economic activity and solar insolation, along with solar photovoltaic (PV) array packing density data to develop a range of estimates of the solar electric footprint. We find that the solar electric footprint, defined as the land area required to supply all end-use electricity from solar photovoltaics, is about 181 m2 per person in the United States. Two key factors that influence the magnitude of the state-level solar electric footprint include how industrial energy is allocated (based on location of use vs. where goods are consumed) and the assumed distribution of PV configurations (flat rooftop vs. fixed tilt vs. tracking). The solar electric footprint is about 0.6% of the total land area of the United States with state-level estimates ranging from less than 0.1% for Wyoming to about 9% for New Jersey. We also compare the solar electric footprint to a number of other land uses. For example, we find that the solar electric footprint is equal to less than 2% of the land dedicated to cropland and grazing in the United States.

Denholm, P.; Margolis, R.

2007-12-01T23:59:59.000Z

274

Targeting Sustainable Solar PV Development within NAFTA: A Comparative Analysis of Policy Competitiveness for Rooftop Commercial Solar PV Installations within the United States, Canada and Mexico.  

E-Print Network (OSTI)

??As long as there are not widespread, substantial austerity cuts by Western governments caused by the 2009 recession, public support and subsequent public finance for… (more)

Hinterlong, M.T.

2010-01-01T23:59:59.000Z

275

Capacity Value of Solar Power  

Science Conference Proceedings (OSTI)

Evaluating the capacity value of renewable energy sources can pose significant challenges due to their variable and uncertain nature. In this paper the capacity value of solar power is investigated. Solar capacity value metrics and their associated calculation methodologies are reviewed and several solar capacity studies are summarized. The differences between wind and solar power are examined, the economic importance of solar capacity value is discussed and other assessments and recommendations are presented.

Duignan, Roisin; Dent, Chris; Mills, Andrew; Samaan, Nader A.; Milligan, Michael; Keane, Andrew; O'Malley, Mark

2012-11-10T23:59:59.000Z

276

Clean Energy Options for Sabah an analysis of resource availability and cost  

E-Print Network (OSTI)

-integrated Photovoltaic. A distributed approach to solar power development, in based on rooftop solar photovoltaic

Kammen, Daniel M.

277

DOE Solar Decathlon: About Solar Decathlon  

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

About Solar Decathlon About Solar Decathlon The U.S. Department of Energy Solar Decathlon is an award-winning program that challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. The winner of the competition is the team that best blends affordability, consumer appeal, and design excellence with optimal energy production and maximum efficiency. The first Solar Decathlon was held in 2002; the competition has since occurred biennially in 2005, 2007, 2009, 2011, and 2013. The next event will take place in 2015. Open to the public free of charge, the Solar Decathlon gives visitors the opportunity to tour solar-powered houses, gather ideas to use in their own homes, and learn how energy-saving features can help them save money today.

278

High Volume Method of Making Low Cost, Lightweight Solar Materials ...  

A critical challenge for solar energy is the high cost (>$1/W) of quality solar materials. Researchers at ORNL have invented an approach for producing large volumes ...

279

Milk, Eggs and Solar: Grocery Co-Op Puts Photovoltaics to Work | Department  

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

Milk, Eggs and Solar: Grocery Co-Op Puts Photovoltaics to Work Milk, Eggs and Solar: Grocery Co-Op Puts Photovoltaics to Work Milk, Eggs and Solar: Grocery Co-Op Puts Photovoltaics to Work September 2, 2010 - 12:15pm Addthis Maya Payne Smart Former Writer for Energy Empowers, EERE 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. Reducing energy demand With freezer and refrigerator units running 24/7, energy demand is high at the 16,000 square foot store. The co-op's electricity bill averaged $17,000 a month. With the solar energy system, its conventional energy use is expected to

280

Every Square Inch: The Fight for the California Desert  

E-Print Network (OSTI)

local distribution and rooftop solar instead of paving overup Los Angeles, and rooftop solar was far more practical.from urban centers when rooftop solar could feed back into

Argandona, Monica

2012-01-01T23:59:59.000Z

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


281

Alternative Energy Development and China's Energy Future  

E-Print Network (OSTI)

in Shanghai 100,000 Rooftop Solar PV Program. ” 22 Februarycompeting demand for rooftop area from solar water heaters,rooftops may actually be prohibited in some cities because compulsory solar

Zheng, Nina

2012-01-01T23:59:59.000Z

282

Online short-term solar power forecasting  

SciTech Connect

This paper describes a new approach to online forecasting of power production from PV systems. The method is suited to online forecasting in many applications and in this paper it is used to predict hourly values of solar power for horizons of up to 36 h. The data used is 15-min observations of solar power from 21 PV systems located on rooftops in a small village in Denmark. The suggested method is a two-stage method where first a statistical normalization of the solar power is obtained using a clear sky model. The clear sky model is found using statistical smoothing techniques. Then forecasts of the normalized solar power are calculated using adaptive linear time series models. Both autoregressive (AR) and AR with exogenous input (ARX) models are evaluated, where the latter takes numerical weather predictions (NWPs) as input. The results indicate that for forecasts up to 2 h ahead the most important input is the available observations of solar power, while for longer horizons NWPs are the most important input. A root mean square error improvement of around 35% is achieved by the ARX model compared to a proposed reference model. (author)

Bacher, Peder; Madsen, Henrik [Informatics and Mathematical Modelling, Richard Pedersens Plads, Technical University of Denmark, Building 321, DK-2800 Lyngby (Denmark); Nielsen, Henrik Aalborg [ENFOR A/S, Lyngsoe Alle 3, DK-2970 Hoersholm (Denmark)

2009-10-15T23:59:59.000Z

283

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

DOE Green Energy (OSTI)

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.

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

2009-09-01T23:59:59.000Z

284

Energy Department Launches SunShot Prize Competition to Install Solar  

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

SunShot Prize Competition to Install SunShot Prize Competition to Install Solar Energy Systems at a Fraction of Today's Price Energy Department Launches SunShot Prize Competition to Install Solar Energy Systems at a Fraction of Today's Price September 12, 2012 - 2:27pm Addthis News Media Contact (202) 586-4940 WASHINGTON - As part of the Energy Department's SunShot Initiative, which is working to make solar energy competitive with other forms of energy without subsidy by the end of the decade, the Energy Department today announced the start of a new competition to make it faster, easier, and cheaper to install rooftop solar energy systems. The SunShot Prize makes a total of $10 million in cash awards available to the first three teams that repeatedly demonstrate the non-hardware costs, or price to plug

285

DOE Solar Decathlon: Team Austria: Vienna University of Technology  

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

Austria: Vienna University of Technology Austria: Vienna University of Technology LISI www.solardecathlon.at Team Austria's U.S. Department of Energy Solar Decathlon 2013 entry is a simple, smart, and sustainable house. Powered by a rooftop solar photovoltaic system, Living Inspired by Sustainable Innovation (LISI) generates more power than it uses over the course of a year. The house adapts to a range of climate zones and flexes to meet a variety of lifestyles. Design Philosophy In developing LISI, Team Austria was guided by a vision for a healthy, sustainable future and a concept that could adapt to many lifestyles and climates. Viewing the house as a "social creature" eager to find its place in a richly diverse community, Team Austria honors a sense of stewardship in the use of our planet's most precious resources.

286

Wind heat transfer coefficient in solar collectors in outdoor conditions  

Science Conference Proceedings (OSTI)

Knowledge of wind heat transfer coefficient, h{sub w}, is required for estimation of upward losses from the outer surface of flat plate solar collectors/solar cookers. In present study, an attempt has been made to estimate the wind induced convective heat transfer coefficient by employing unglazed test plate (of size about 0.9 m square) in outdoor conditions. Experiments, for measurement of h{sub w}, have been conducted on rooftop of a building in the Institute campus in summer season for 2 years. The estimated wind heat transfer coefficient has been correlated against wind speed by linear regression and power regression. Experimental values of wind heat transfer coefficient estimated in present work have been compared with studies of other researchers after normalizing for plate length. (author)

Kumar, Suresh; Mullick, S.C. [Centre for Energy Studies, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110 016 (India)

2010-06-15T23:59:59.000Z

287

Rooftop Unit Network Project  

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

Network Project Network Project RTU Network Project Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Packaged air conditioners and heat pumps (RTUs) are used in about 58% of all cooled commercial buildings, serving about 69% of the cooled commercial building floor space (EIA 2003) - Navigant estimates packaged A/C uses 0.9 quads of electricity for cooling annually and

288

Rooftop package unit diagnostician  

DOE Patents (OSTI)

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.

Chassin, David P [Pasco, WA; Pratt, Robert G [Kennewick, WA; Reid, Larry Dean [Benton City, WA

2004-08-17T23:59:59.000Z

289

Hydronic rooftop cooling systems  

DOE Patents (OSTI)

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.

Bourne, Richard C. (Davis, CA); Lee, Brian Eric (Monterey, CA); Berman, Mark J. (Davis, CA)

2008-01-29T23:59:59.000Z

290

High Performance Rooftop Units  

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

Presentationname High Performance RTUs Life Cycle Cost Comparison Calculator * Web-based tool for comparing costs of standard and high performance RTUs. * Weather data for 237...

291

Rooftop Unit Network Project  

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

generated, integrating buildings with the grid will fulfill many of the Smart Grid goals as well, including increasing distributed renewable generation reliably and...

292

Block IV solar cell module design and test specification for residential applications  

SciTech Connect

This specification provides near-term design, qualification and acceptance requirements for terrestrial solar cell modules suitable for incorporation in photovoltaic power sources (2 kW to 10 kW) applied to single family residential installations. Requirement levels and recommended design limits for selected performance criteria have been specified for modules intended principally for rooftop installations. Modules satisfying the requirements of this specification fall into one of two categories, residential panel or residential shingle, both meeting general performance requirements plus additional category peculiar constraints.

1978-11-01T23:59:59.000Z

293

DOE Solar Decathlon: News Blog » XPO  

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

XPO Below you will find Solar Decathlon news from the XPO archive, sorted by date. California Challenge Brings Energy-Efficient Racing to the U.S. Department of Energy Solar...

294

Biomimetic Dye Molecules for Solar Cells  

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

provide opportunities for solid-state physicists and chemists to solve a major challenge: solar cell adoption. Though solar cells can use energy directly from the Sun to produce...

295

Smart grid adds value to solar photovoltaics  

Science Conference Proceedings (OSTI)

This panel session examines the challenges and opportunities of integrating large scale solar photovoltaic units into the electric power grid. As large solar PV projects (hundreds of MW) come online, their output variation due to weather changes will ...

2012-01-01T23:59:59.000Z

296

Photovoltaic roof heat flux  

E-Print Network (OSTI)

showed that a solar panel over a rooftop w i l l lead to aalbedo (or solar reflectance) by painting the rooftops whitesolar panel offset height became a key component for rooftop

Samady, Mezhgan Frishta

2011-01-01T23:59:59.000Z

297

Solar Desiccant Cooling  

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

Solar Desiccant Cooling Solar Desiccant Cooling Speaker(s): Paul Bourdoukan Date: December 6, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Ashok Gadgil The development of HVAC systems is a real challenge regarding its environmental impact. An innovative technique operating only by means of water and solar energy, is desiccant cooling. The principle is evaporative cooling with the introduction of a dehumidification unit, the desiccant wheel to control the humidity levels. The regeneration of the desiccant wheel requires a preheated airstream. A solar installation is a very interesting option for providing the preheated airstream. In France, at the University of La Rochelle, and at the National Institute of Solar Energy (INES), the investigation of the solar desiccant cooling technique has been

298

self-guided tour of the tempe campus "Sustainability is larger than one person, one company, or one country.  

E-Print Network (OSTI)

Rooftop Solar This rooftop solar installation produces enough electricity to supply 16 average Arizona consequences. Hayden Library Rooftop Solar This rooftop solar installation is expected to produce more than 460 here at ASU. By following this 1.2-mile walking tour you will see LEED*-certified buildings, solar

Hall, Sharon J.

299

A Challenging Solar Eruptive Event of 18 November 2003 and the Causes of the 20 November Geomagnetic Superstorm. I. Unusual History of an Eruptive Filament  

E-Print Network (OSTI)

This is the first of four companion papers, which analyze a complex eruptive event of 18 November 2003 in AR 10501 and the causes of the largest Solar Cycle 23 geomagnetic storm on 20 November 2003. Analysis of a complete data set, not considered before, reveals a chain of eruptions to which hard X-ray and microwave bursts responded. A filament in AR 10501 was not a passive part of a larger flux rope, as usually considered. The filament erupted and gave origin to a CME. The chain of events was as follows: i) an eruption at 07:29 accompanied by a not reported M1.2 class flare associated with the onset of a first southeastern CME1, which is not responsible for the superstorm; ii) a confined eruption at 07:41 (M3.2 flare) that destabilized the filament; iii) the filament acceleration (07:56); iv) the bifurcation of the eruptive filament that transformed into a large cloud; v) an M3.9 flare in AR 10501 associated to this transformation. The transformation of the filament could be due to its interaction with the m...

Grechnev, V V; Slemzin, V A; Chertok, I M; Filippov, B P; Rudenko, G V; Temmer, M

2013-01-01T23:59:59.000Z

300

OZZ Solar Inc Sky Ozz International | Open Energy Information  

Open Energy Info (EERE)

OZZ Solar Inc Sky Ozz International OZZ Solar Inc Sky Ozz International Jump to: navigation, search Name OZZ Solar Inc. (Sky Ozz International) Place Concord, Ontario, Canada Zip L4K 4R1 Sector Solar Product Ontario-based OZZ Solar was formed to build commercial and residential rooftop solar projects under the province's feed-in tariff programme. Coordinates 37.344704°, -78.975299° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.344704,"lon":-78.975299,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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


301

Challenge Home  

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

DOE Challenge Home DOE Challenge Home Sam Rashkin Building Technologies Office samuel.rashkin@ee.doe.gov/202-2897-1994 April 3, 2013 DOE Challenge Home: Leveraging Our Nation's Investment in High-Performance Home Innovations 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: The U.S. Housing industry is extremely slow to adopt proven innovations from DOE's Building America program that provide compelling benefits to

302

NREL: News Feature - Solar Cells Light Up Prison Cells on 'The Rock'  

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

Solar Cells Light Up Prison Cells on 'The Rock' Solar Cells Light Up Prison Cells on 'The Rock' July 23, 2012 This photo shows an island in the middle of blue sea water, with industrial buildings taking up a good deal of the island. The 1,300 solar panels on the Cellhouse building are a dark blue. Enlarge image Alcatraz Island in San Francisco Bay is referred to as "The Rock" and was home to a notorious prison for 75 years. NREL recently helped the National Park Service and the DOE Federal Energy Management Program transform the island's electricity source from diesel fuel to photovoltaic panels on the rooftop of the Cellhouse building. Courtesy of the National Park Service "Machine Gun Kelly," Al Capone, the "Birdman" - Alcatraz prison has had some infamous residents on the craggy island known as "The Rock" in the

303

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

SciTech Connect

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

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

2007-06-04T23:59:59.000Z

304

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

SciTech Connect

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

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

2007-06-04T23:59:59.000Z

305

The Global Energy Challenge George Crabtree  

E-Print Network (OSTI)

as an Energy Carrier coal gas heat mechanical motion electricity hydro wind fuel cells solar communication://www.sc.doe.gov/bes/reports/abstracts.html#SC pre 1986 post 1986 # Tc 24 Hydrogen as an Energy Carrier solar wind hydro fossil fuel reformingThe Global Energy Challenge George Crabtree Argonne National Laboratory Kansas Energy Symposium

Peterson, Blake R.

306

Supercomputing challenge  

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

Supercomputing challenge Supercomputing challenge Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit La Cueva High School takes top prize at the Lab's Supercomputing Challenge The competition supports the country's next-generation scientists. May 1, 2013 La Cueva student make supercomputing challenge presentaiton Student from La Cueva helps present the team's work. Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email A team of three students (including a brother and sister) from Albuquerque's La Cueva High School won the New Mexico Supercomputing Challenge this year with its project "Learning and Analyzing Topics in Human Language." The team, made up of Ari Echt-Wilson, Eli Echt-Wilson and Justin Sanchez,

307

www.uwindsor.ca/grad Prospectus and Program Overview 2013/2014  

E-Print Network (OSTI)

Postgraduate Scholarship. He is shown discussing a research project on safer installation of rooftop solar

308

Collection Cyberlibris (17/04/2013) A Sound Reference Base for Soils : The "Rfrentiel Pdologique";"Baize, Denis : Editions Quae 1998  

E-Print Network (OSTI)

: Amacom 1992 Rooftop Revolution : How Solar Power Can Save Our Economy - and Our Planet - from Dirty

Jeanjean, Louis

309

Gille-MAE 124/ESYS 103, Spring 2010 1 Paper 1: Evaluating Environmental Actions  

E-Print Network (OSTI)

efficiency windows. · Install a rooftop solar photovoltaic electrical system. · Invest the funding

Gille, Sarah T.

310

C I R E D 22nd International Conference on Electricity Distribution Stockholm, 10-13 June 2013 CIRED2013 Session 5 Paper No 1205  

E-Print Network (OSTI)

scheduling for electrical vehicles, thermal load scheduling, optimal utilization of rooftop solar panels

Langseth, Helge

311

www.uwindsor.ca/grad Prospectus and Program Overview 2014/2015  

E-Print Network (OSTI)

on safer installation of rooftop solar panels with his industry supervisor, Manish Nayar. UWINDSOR FACTS

312

Financing Non-Residential Photovoltaic Projects: Options and Implications  

E-Print Network (OSTI)

Solar – Larger Projects, Similar Financing Strategies Although this report focuses primarily on non-residential “rooftop

Bolinger, Mark

2009-01-01T23:59:59.000Z

313

Stanford's nanowire battery holds 10 times the charge of existing ones Stanford Report, December 18, 2007  

E-Print Network (OSTI)

by rooftop solar panels. "Given the mature infrastructure behind silicon, this new technology can be pushed

Cui, Yi

314

Building Technologies Office: Challenge Home Events  

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

Challenge Home Events Challenge Home Events to someone by E-mail Share Building Technologies Office: Challenge Home Events on Facebook Tweet about Building Technologies Office: Challenge Home Events on Twitter Bookmark Building Technologies Office: Challenge Home Events on Google Bookmark Building Technologies Office: Challenge Home Events on Delicious Rank Building Technologies Office: Challenge Home Events on Digg Find More places to share Building Technologies Office: Challenge Home Events on AddThis.com... About Take Action to Save Energy Partner With DOE Activities Solar Decathlon Building America Home Energy Score Home Performance with ENERGY STAR Better Buildings Neighborhood Program Challenge Home Partner Log In Become a Partner Criteria Partner Locator Resources Housing Innovation Awards

315

Biochange Challenge  

Science Conference Proceedings (OSTI)

... volumes, V 1 and V 2 , the fractional change is (V 2 /V 1 - 1). ... Download and read the Biochange Challenge Protocol and email or fax a Statement of ...

2010-10-12T23:59:59.000Z

316

Submeter Challenge  

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

Submeter Challenge Submeter Challenge Jason Koman US Department of Energy Jason.Koman@ee.DOE.Gov 202-287-1578 April 2, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: To most effectively improve a building's energy efficiency, energy use must be measured. However, (near) real-time energy use data are not available for many buildings, often due to the high cost of metering and gathering data. The commercial building market, including the Federal

317

Submeter Challenge  

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

Submeter Challenge Submeter Challenge Jason Koman US Department of Energy Jason.Koman@ee.DOE.Gov 202-287-1578 April 2, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: To most effectively improve a building's energy efficiency, energy use must be measured. However, (near) real-time energy use data are not available for many buildings, often due to the high cost of metering and gathering data. The commercial building market, including the Federal

318

NREL: Dynamic Maps, Geographic Information System (GIS) Data...  

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

on a rooftop analysis project to determine the potential rooftop space available for solar panel installation. She runs the first-return raster against the slope, aspect, and...

319

The Challenge  

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

Challenge Challenge CalPortland is a major building materials and construction solutions provider to the western United States and Canada. In 2003, CalPortland's management team was focused on performing plant expansions and developing its business. In the process, CalPortland discovered that further monitoring of energy performance and utility costs was needed along with increased accountability for energy use. CalPortland's management team sought to improve energy efficiency and incorporate accountability into its energy management approach. Building an Energy Program To begin managing its energy performance, CalPortland enlisted the expertise of a senior engineer to create an effective corporate-wide

320

COMPOSITION OF THE SOLAR CORONA, SOLAR WIND, AND SOLAR ENERGETIC PARTICLES  

Science Conference Proceedings (OSTI)

Along with temperature and density, the elemental abundance is a basic parameter required by astronomers to understand and model any physical system. The abundances of the solar corona are known to differ from those of the solar photosphere via a mechanism related to the first ionization potential of the element, but the normalization of these values with respect to hydrogen is challenging. Here, we show that the values used by solar physicists for over a decade and currently referred to as the 'coronal abundances' do not agree with the data themselves. As a result, recent analysis and interpretation of solar data involving coronal abundances may need to be revised. We use observations from coronal spectroscopy, the solar wind, and solar energetic particles as well as the latest abundances of the solar photosphere to establish a new set of abundances that reflect our current understanding of the coronal plasma.

Schmelz, J. T. [Physics Department, University of Memphis, Memphis, TN 38152 (United States); Reames, D. V. [IPST, University of Maryland, College Park, MD 20742 (United States); Von Steiger, R. [ISSI, Hallerstrasse 6, 3012 Bern (Switzerland); Basu, S., E-mail: jschmelz@memphis.edu [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520 (United States)

2012-08-10T23:59:59.000Z

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


321

A practical theory of micro-solar power sensor networks  

Science Conference Proceedings (OSTI)

Building a micro-solar power system is challenging because it must address long-term system behavior under highly variable solar energy and consider a large design space. We develop a practical theory of micro-solar power systems that is materialized ... Keywords: Micro-solar power system, deployment, modeling, simulation, validation

Jaein Jeong; David Culler

2012-11-01T23:59:59.000Z

322

Efficient Solar Concentrators: Affordable Energy from Water and Sunlight  

Science Conference Proceedings (OSTI)

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.

None

2010-01-01T23:59:59.000Z

323

Reliability Challenges for Solar Energy (Presentation)  

DOE Green Energy (OSTI)

Presentation that reviews reliability issues related to various types of photovoltaic tecnnologies, including crystalline silicon, thin films, and concentrating PV.

Kurtz, S.

2009-12-08T23:59:59.000Z

324

Reliability Challenges for Solar Energy (Presentation)  

DOE Green Energy (OSTI)

PV industry can benefit from reliability testing experience of microelectronics industry . Si modules perform well in field; CdTe/CIGS must be sealed to moisture; CPV in product development stage.

Kurtz, S.

2009-04-27T23:59:59.000Z

325

U.S. Department of Energy Solar Decathlon Home Page  

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

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

326

Energy Basics: Thermal Storage Systems for Concentrating Solar...  

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

Systems for Concentrating Solar Power One challenge facing the widespread use of solar energy is reduced or curtailed energy production when the sun sets or is blocked by clouds....

327

Solar: A Clean Energy Source for Utilities (Fact Sheet)  

DOE Green Energy (OSTI)

The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts with utilities to remove the technical, regulatory, and market challenges they face in deploying solar technologies.

Not Available

2010-09-01T23:59:59.000Z

328

Solar Decathlon  

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

U.S. Department of Energy Solar Decathlon Sara Farrar-Nagy National Renewable Energy Laboratory sara.farrar-nagy@nrel.gov, 303-384-7514 April 3, 2013 Solar Decathlon 2009 Solar...

329

Solar Easements  

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

Virginia's solar easement law is similar to those in effect in other states. The Virginia Solar Easements Act of 1978 allows property owners to create binding solar easements for the purpose of...

330

Committee on the Challenges of Modern Society solar energy pilot study. First follow-up report, October 1979, pilot country: United States; co-pilot countries: Denmark and France. CCMS report No. 110  

DOE Green Energy (OSTI)

During 1973 to 1978, over twenty nations participated in the NATO/CCMS Solar Energy Pilot Study, whose objective was to promote and accelerate the use of solar heating and cooling of buildings. The activities in this information exchange included (1) the regular reporting of national solar heating and cooling programs, (2) the development of a format for reporting the performance of solar heating and cooling systems, (3) the exchange of system performance reports, (4) the establishment of two specialized working groups for solar-assisted low energy dwellings and passive solar applications. At the conclusion of the pilot study in 1978, the participants formulated recommendations for continued action at the international level, as well as for action at the national level. This report describes the progress made in implementing those recommendations. In addition to detailing the steps taken to continue collaboration in various efforts initiated within the Solar Energy Pilot Study, the report contains papers on the 1979 status of the solar heating and cooling programs in seventeen CCMS countries.

None

1980-01-01T23:59:59.000Z

331

NREL: Technology Deployment - Solar Deployment and Market Transformation  

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

Solar Deployment and Market Transformation Solar Deployment and Market Transformation NREL enables faster, easier, and less expensive solar installations by applying our expertise and knowledge to projects that addresses challenges, inefficiencies, and market barriers to solar technology deployment. Northeast Denver Housing Center Solarize Grassroots Movement Drives Down Solar Prices 30% in Portland, Oregon Solarize Northeast Denver Housing Center NREL Identifies PV for 28 Affordable Housing Units Our technical experts work with policymakers, program administrators, regulators, utilities, transmission organizations, technology developers, financial organizations, and insurance companies to help break down barriers to solar technology deployment by: Developing and delivering policy and market design trainings

332

Solar Photovoltaic Project: materials, processes, and testing activities. Quarterly report, April 1-June 30, 1979  

DOE Green Energy (OSTI)

The US Department of Energy has set a 20-year lifetime goal for terrestrial photovoltaic modules. In its capacity as a Photovoltaic Field Tests and Applications Center, Massachusetts Institute of Technology Lincoln Laboratory has established various experimental test sites, ranging in size from 0.1- to 25-kW-peak power, throughout the United States. These sites include modules from several manufacturers and serve as test beds for photovoltaic system components. This report, the fifth in a series of similar reports (1-4), summarizes the activities of the Materials, Processes and Testing Laboratory of the Solar Photovoltaic Field Tests and Applications Project during the three-month period (4/1/79 to 6/30/79). During this period, inspection trips were made to test sites at the University of Texas at Arlington and at Mead, Nebraska. Modules were tested in the field to determine the extent of physical and electrical degradation which had taken place since previous inspections. Several modules were removed from these sites for more detailed laboratory analysis. In addition, degradation analysis of modules from the rooftop of the Chicago Museum of Science and Industry, and failure analysis of modules from the Lincoln Laboratory Rooftop Test Bed and Residential Test Beds was performed. The results of both field testing and the laboratory analyses are reported.

Forman, S.E.; Themelis, M.P.

1979-10-31T23:59:59.000Z

333

NREL: Technology Deployment - Solar Decathlon  

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

Decathlon Decathlon Photo of a woman assembling the Team Alberta solar-powered house at the Solar Decathlon, with the U.S. Capitol Building in the background. Solar Decathlon is an international competition that challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. NREL has provided technical expertise for this U.S. Department of Energy (DOE) event since its conception in 1999. Considered one of DOE's most successful efforts, the Solar Decathlon helps remove multiple barriers to the adoption of solar energy technologies by: Educating students and the public about the money-saving opportunities and environmental benefits presented by clean-energy products and design solutions Demonstrating to the public the comfort and affordability of homes

334

Solar Decathlon | Department of Energy  

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

Solar Decathlon Solar Decathlon Solar Decathlon October 3, 2013 11:45AM EDT to October 13, 2013 4:45PM EDT Orange County Great Park, Irvine California The U.S. Department of Energy Solar Decathlon is an award-winning program that challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. The winner of the competition is the team that best blends affordability, consumer appeal, and design excellence with optimal energy production and maximum efficiency. The first Solar Decathlon was held in 2002; the competition has since occurred biennially in 2005, 2007, 2009, and 2011. The next event will take place Oct. 3-13, 2013, at Orange County Great Park in Irvine, California. The competition houses will be open to

335

Combined desalination and power generation using solar energy.  

E-Print Network (OSTI)

??Integrated desalination and power generation using solar energy is a prospective way to help solve the twin challenges of energy and fresh water shortage, while… (more)

Zhao, Y

2009-01-01T23:59:59.000Z

336

High Volume Method of Making Low Cost, Lightweight Solar Materials  

ORNL 2010-G00644/jcn UT-B ID 201002380 High Volume Method of Making Low Cost, Lightweight Solar Materials Technology Summary A critical challenge for ...

337

A Bright Day for Solar Decathlon Winners - Materials Technology ...  

Science Conference Proceedings (OSTI)

Oct 20, 2009 ... This year's Solar Decathlon challenged 20 university teams to ... laundry, and washing dishes in a dishwasher five times during the competition.

338

NREL: Renewable Resource Data Center - Solar Resource Information  

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

siting of any renewable energy system is critical to its success. However, siting a solar energy system can be particularly challenging because of the varying nature of the...

339

Browse wiki | Open Energy Information  

Open Energy Info (EERE)

installations. + Product US-based solar project developer for rooftop commercial installations. + Sector Gateway:Solar + Categories Clean Energy Organizations + ,...

340

DOE Solar Decathlon: 2007 Final Results  

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

Computer-generated image of the Technische Universität Darmstadt 2007 Solar Decathlon house. Computer-generated image of the Technische Universität Darmstadt 2007 Solar Decathlon house. First Place: Technische Universität Darmstadt Computer-generated image of the University of Maryland 2007 Solar Decathlon house. Second Place: University of Maryland Computer-generated image of the Santa Clara University 2007 Solar Decathlon house. Third Place: Santa Clara University Solar Decathlon 2007 Final Results The Solar Decathlon challenged 20 college and university teams to compete in 10 contests and design, build, and operate the most attractive and energy-efficient solar-powered home. After two years of preparation and a week of competition, the final scores and standings are in. Overall First Place: Technische Universität Darmstadt This team from Germany came to the Solar Decathlon hoping to have an impact

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


341

Thermal Storage Systems for Concentrating Solar Power  

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

One challenge facing the widespread use of solar energy is reduced or curtailed energy production when the sun sets or is blocked by clouds. Thermal energy storage provides a workable solution to...

342

DOE Solar Decathlon: News Blog » XPO  

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

'XPO' California Challenge Brings Energy-Efficient Racing to the U.S. Department of Energy Solar Decathlon 2013 and XPO Friday, August 23, 2013 By Amy Vaughn Mark your calendars...

343

DOE Solar Decathlon: News Blog » 2013 » August  

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

California Challenge Brings Energy-Efficient Racing to the U.S. Department of Energy Solar Decathlon 2013 and XPO Friday, August 23, 2013 Amy Vaughn Mark your calendars for an...

344

DOE Solar Decathlon: News Blog » Events  

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

California Challenge Brings Energy-Efficient Racing to the U.S. Department of Energy Solar Decathlon 2013 and XPO Friday, August 23, 2013 Amy Vaughn Mark your calendars for an...

345

Phenylnaphthalene Derivatives as Heat Transfer Fluids for Concentrating Solar Power: Loop Experiments and Final Report  

SciTech Connect

ORNL and subcontractor Cool Energy completed an investigation of higher-temperature, organic thermal fluids for solar thermal applications. Although static thermal tests showed promising results for 1-phenylnaphthalene, loop testing at temperatures to 450 C showed that the material isomerized at a slow rate. In a loop with a temperature high enough to drive the isomerization, the higher melting point byproducts tended to condense onto cooler surfaces. So, as experienced in loop operation, eventually the internal channels of cooler components such as the waste heat rejection exchanger may become coated or clogged and loop performance will decrease. Thus, pure 1-phenylnaphthalene does not appear to be a fluid that would have a sufficiently long lifetime (years to decades) to be used in a loop at the increased temperatures of interest. Hence a decision was made not to test the ORNL fluid in the loop at Cool Energy Inc. Instead, Cool Energy tested and modeled power conversion from a moderate-temperature solar loop using coupled Stirling engines. Cool Energy analyzed data collected on third and fourth generation SolarHeart Stirling engines operating on a rooftop solar field with a lower temperature (Marlotherm) heat transfer fluid. The operating efficiencies of the Stirling engines were determined at multiple, typical solar conditions, based on data from actual cycle operation. Results highlighted the advantages of inherent thermal energy storage in the power conversion system.

McFarlane, Joanna [ORNL; Bell, Jason R [ORNL; Felde, David K [ORNL; Joseph III, Robert Anthony [ORNL; Qualls, A L [ORNL; Weaver, Samuel P [ORNL

2013-02-01T23:59:59.000Z

346

DOE Solar Decathlon: Press Room  

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

Press Room Press Room The U.S. Department of Energy Solar Decathlon is an award-winning program that challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. The winner of the competition is the team that best blends affordability, consumer appeal, and design excellence with optimal energy production and maximum efficiency. The first Solar Decathlon was held in 2002; the competition has since occurred every two years in 2005, 2007, 2009, and 2011. The last event was held at the National Mall's West Potomac Park in Washington, D.C., Sept. 23-Oct. 2, 2011. Solar Decathlon 2013 takes place Oct. 3-13, 2013, at Orange County Great Park in Irvine, California. Open to the public free of charge, the Solar Decathlon gives visitors the

347

Solar Neutrinos  

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

Solar Neutrinos at the Conclusion of the Sudbury Neutrino Observatory Noah Oblath April 22, 2008 The study of solar neutrinos began with the idea that one could use the neutrinos...

348

Solar Easements  

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

In determining that the use of solar energy "can help reduce the nation's reliance upon imported fuels," Georgia encourages the development of solar-energy systems. Accordingly, under Georgia's...

349

Solar Easements  

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

Alaska's solar easement provisions are similar to those in many other states. They do not create an automatic right to sunlight. Rather, they allow parties to voluntarily enter into solar...

350

Solar Easements  

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

Idaho’s solar easement provisions allow for the access rights to sunlight for a solar energy device. The easement is transferred with the property title. Only a few Idaho communities have passed...

351

SunShot Grand Challenge Summit 2014 | Department of Energy  

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

SunShot Grand Challenge Summit 2014 SunShot Grand Challenge Summit 2014 SunShot Grand Challenge Summit 2014 May 19, 2014 8:00AM PDT to May 22, 2014 5:00PM PDT Anaheim, California Hilton Anaheim The DOE SunShot Initiative Grand Challenge Summit 2014 will bring together more than 800 members of the solar community including SunShot-funded project teams, industry leaders, innovative researchers and scientists, and local, state and federal government policymakers to review the progress made and discuss the challenges ahead to make solar energy more affordable and widespread across America. The event will include activities that celebrate the accomplishments across more than 250 SunShot-funded projects and discuss the path forward for the U.S. solar energy industry. Plenary Sessions and Keynote Speakers - Top leaders from business,

352

Mgt. Challenges 2004  

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

Management Challenges at the Department of Energy DOE/IG-0626 November 2003 Analysis of Management Challenges Background ................................................................................1 Mission Related Challenges ...................................................... 1 Internal Control Challenges ....................................................... 6 Appendices 1. Watch List .......................................................................... 13 2. Table Comparing Management Challenges Reported by Various Groups ............................................................. 15 3. Related Reports Issued in Fiscal Year 2003 ...................... 16 MANAGEMENT CHALLENGES AT THE DEPARTMENT OF ENERGY TABLE OF

353

Community Conservation Challenge | Department of Energy  

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

Community Conservation Challenge Community Conservation Challenge Community Conservation Challenge < Back Eligibility Agricultural Commercial Industrial Institutional Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Sealing Your Home Cooling Construction Design & Remodeling Manufacturing Ventilation Appliances & Electronics Commercial Lighting Lighting Buying & Making Electricity Bioenergy Water Solar Water Heating Wind Maximum Rebate $150,000 Program Info State Indiana Program Type State Grant Program Rebate Amount $25,000-$150,000 Provider Indiana Office of Energy Development '''''Note: Applications for the CCC program were due November 15, 2012. The next solicitation is expected in Fall 2013.''''' The Indiana Office of Energy Development (OED) is offering grants under the

354

Solar collectors  

SciTech Connect

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

Cassidy, V.M.

1981-11-01T23:59:59.000Z

355

Solar project  

SciTech Connect

A solar laundry was installed on a college campus in South Carolina, including two separate systems installed in parallel. (LEW)

1983-01-01T23:59:59.000Z

356

Implementation of solar industrial process heat: summary  

SciTech Connect

The implementation of solar industrial process heat systems will depend not only on the successful development of reliable and efficient solar technologies, but also on the intelligent and sound application of process engineering principles. This poses an important challenge which must be given increasing attention if SIPH systems are to be adopted by industry. (MOW)

Kearney, D. W.

1979-11-01T23:59:59.000Z

357

Philadelphia, Pennsylvania: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Philadelphia, PA, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

358

Portland, Oregon: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Portland, OR, 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.

Not Available

2011-10-01T23:59:59.000Z

359

Madison, Wisconsin: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Madison, WI, 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.

Not Available

2011-10-01T23:59:59.000Z

360

Tucson, Arizona: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Tucson, AZ, 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.

Not Available

2011-10-01T23:59:59.000Z

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


361

Pittsburgh, Pennsylvania: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Pittsburgh, PA, 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.

Not Available

2011-10-01T23:59:59.000Z

362

Berkeley, California: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Berkeley, CA, 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.

Not Available

2011-10-01T23:59:59.000Z

363

Orlando, Florida: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Orlando, FL, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

364

Houston, Texas: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Houston, TX, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

365

Denver, Colorado: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Denver, Colorado, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

366

Milwaukee, Wisconsin: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Milwaukee, WI, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

367

Ann Arbor, Michigan: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Ann Arbor, Michigan, 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.

Not Available

2011-10-01T23:59:59.000Z

368

San Francisco, California: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of San Francisco, CA, 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.

Not Available

2011-10-01T23:59:59.000Z

369

Knoxville, Tennessee: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Knoxville, TN, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

370

New Orleans, Louisiana: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of New Orleans, LA, 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.

Not Available

2011-10-01T23:59:59.000Z

371

Santa Rosa, California: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Santa Rosa, CA, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

372

Seattle, Washington: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Seattle, WA, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

373

San Jose, California: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of San Jose, CA, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

374

Ground-based measurements of solar diameter  

E-Print Network (OSTI)

The solar diameter changes or not? Whatever will be the answer the methods used for its measurements are more and more challenging, and facing new astrophysical and optical problems since the required space resolution is of astrometric quality. A quick overview on different methods is here presented, as well as the problem of the solar limb definition, emerging after the flash spectrum during eclipses.

Sigismondi, Costantino

2011-01-01T23:59:59.000Z

375

San Antonio, Texas: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of San Antonio, TX, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

376

Austin, Texas: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Austin, Texas, 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.

Not Available

2011-10-01T23:59:59.000Z

377

Sacramento, California: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Sacramento, CA, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

378

San Diego, California: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of San Diego, CA, 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.

Not Available

2011-10-01T23:59:59.000Z

379

Solar powered desalination system  

E-Print Network (OSTI)

Desalination Systems Developers MIT BARC IMB Power Solar PVcells Solar PV cells 10 MW solar farm Solar pond FranciscoSolar Energy: PEC vs. PV Solar energy is just as important

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

380

Solar heating/cooling and domestic hot-water systems  

Science Conference Proceedings (OSTI)

Increasing awareness of global warming forces policy makers and industries to face two challenges: reducing greenhouse gas emissions and securing stable energy supply against ever-increasing world energy consumption, which is projected to increase by ... Keywords: buildings heating, domestic hot-water, energetical analysis, renewable energy sources, solar cooling technologies, solar energy collection, solar thermal systems

Ioan Sârbu; Marius Adam

2011-02-01T23:59:59.000Z

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


381

Low Cost, Light Weight SOlar Modules Based on Organic Photovoltaic Technology  

SciTech Connect

Objectives - In order to produce solar modules for rooftop applications the performance and the lifetime must be improved to 5% - 7% and >10 year life. Task 1 Stability - (1) Flexible modules are stable to 1000 hrs at 65 C/85%RH, (2) Flexible modules in glass are stable to >2000 hrs at 85 C/85%RH (no decrease in performance); (3) Adhesive + filler helps stabilize modules; and (4) Solution coatable barriers exhibit good WVTR; work in-progress. Task 2 Performance: n-type charge carriers - (1) N-type polymers could not be synthesized; and (2) More than 30 fullerene derivatives synthesized and tested, Several deep LUMO derivatives accept charge from deep LUMO polymers, higher voltage observed, Improvement in cell efficiency not observed, morphology problem. Task 3 Performance: grid electrode - (1) Exceeded flatness and roughness goals; (2) Exceeds sheet resistance goals; (3) Achieved %T goals; and (4) Performance equivalent to ITO - 2% Efficiency ( av.); work in-progress.

Russell Gaudiana; David GInley; Robert Birkmeyer

2009-09-20T23:59:59.000Z

382

SOLAR REFLE TION PANELS  

Unlike other solar collectors that are known to lose solar reflectivity due to issues with their design, the solar collector

383

Introduction to Solar Energy Conversion Solar energy represents the largest energy input into the terrestrial system. Despite its  

E-Print Network (OSTI)

of the resource to allow supply to meet demand at all times. Photovoltaic energy conversion efficiency hasIntroduction to Solar Energy Conversion Solar energy represents the largest energy input the global energy demand on its own. The challenges that need to be addressed to make solar energy viable

Nur, Amos

384

Solar Optics  

DOE Green Energy (OSTI)

Solar opacities are presented from the center of the Sun to the photosphere. The temperatures, densities and hydrogen mass fractions are taken from the standard solar model. For the heavy element abundances the Grevesse mixture is used. In the solar interior photoabsorption is dominated by free-free absorption and they compare two sets of opacities based on two different models for the inverse bremsstrahlung. The radiative luminosities calculated from the two sets of opacities are compared with those predicted by previous models of the standard solar model and also with the known luminosity of the Sun. pressures, specific heats and the speed of sound in the solar plasma are also presented.

Rozsnyai, B.F.

2000-10-04T23:59:59.000Z

385

Solar | Department of Energy  

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

Administration Other Agencies You are here Home Energy Sources Renewables Solar Solar July 12, 2013 California Solar Initiative - Single-Family Affordable Solar...

387

Solar | Department of Energy  

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

21, 2013 Solar Energy Resources Solar radiation, often called the solar resource, is a general term for the electromagnetic radiation emitted by the sun. Solar radiation can be...

388

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

Estimating Unmeasured Solar Radiation Quantities . . . . . .Weather Data . . . . . , . , . . . . . . . . . .Solar DataB. l'he Solar Constant. . . . . . C. Solar Time and Standard

Berdahl, P.

2010-01-01T23:59:59.000Z

389

Solar Power  

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

Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade association promoting solar energy as a clean source of electricity, and provides a comprehensive resource for additional information. DOE's Office of Energy Efficiency and Renewable Energy is also a comprehensive resource for more information on renewable energy.

390

California Solar Initiative - Solar Thermal Program | Department...  

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

Solar Thermal Program California Solar Initiative - Solar Thermal Program Eligibility Commercial Fed. Government Industrial Local Government Low-Income Residential Multi-Family...

391

Renewable energy options in Saudi Arabia: the economic viability of solar photovoltaics within the residential sector  

Science Conference Proceedings (OSTI)

Renewable energy options, including solar power, are becoming progressively more viable and thus increasingly pose challenges to conventional sources of energy, such as oil, coal and natural gas. Solar Photovoltaic technology is one type of solar energy ... Keywords: Saudi Arabia, feasibility study, renewable energy, residential buildings, solar photovoltaics

Yasser Al-Saleh; Hanan Taleb

2009-02-01T23:59:59.000Z

392

Solar Photovoltaic Financing: Deployment on Public Property by State and Local Governments  

DOE Green Energy (OSTI)

State and local governments have grown increasingly aware of the economic, environmental, and societal benefits of taking a lead role in U.S. implementation of renewable energy, particularly distributed photovoltaic (PV) installations. Recently, solar energy's cost premium has declined as a result of technology improvements and an increase in the cost of traditional energy generation. At the same time, a nationwide public policy focus on carbon-free, renewable energy has created a wide range of financial incentives to lower the costs of deploying PV even further. These changes have led to exponential increases in the availability of capital for solar projects, and tremendous creativity in the development of third-party ownership structures. As significant users of electricity, state and local governments can be an excellent example for solar PV system deployment on a national scale. Many public entities are not only considering deployment on public building rooftops, but also large-scale applications on available public lands. The changing marketplace requires that state and local governments be financially sophisticated to capture as much of the economic potential of a PV system as possible. This report examines ways that state and local governments can optimize the financial structure of deploying solar PV for public uses.

Cory, K.; Coughlin, J.; Coggeshall, C.

2008-05-01T23:59:59.000Z

393

National solar heating and cooling programs  

DOE Green Energy (OSTI)

This document is a compilation of status reports on the national solar heating and cooling programs of seventeen countries participating in the Committee on the Challenges of Modern Society's Solar Energy Pilot Study. These reports were presented in two special sessions of the 25th Congress of the International Solar Energy Society held in May 1979, in Atlanta, Georgia, USA. This information exchange activity was part of the two-year follow up (1978-1980) of the Solar Energy Pilot Study, which ended in October 1978.

Blum, S; Allen, J [eds.

1979-08-01T23:59:59.000Z

394

Solar energy conversion.  

SciTech Connect

If solar energy is to become a practical alternative to fossil fuels, we must have efficient ways to convert photons into electricity, fuel, and heat. The need for better conversion technologies is a driving force behind many recent developments in biology, materials, and especially nanoscience. The Sun has the enormous untapped potential to supply our growing energy needs. The barrier to greater use of the solar resource is its high cost relative to the cost of fossil fuels, although the disparity will decrease with the rising prices of fossil fuels and the rising costs of mitigating their impact on the environment and climate. The cost of solar energy is directly related to the low conversion efficiency, the modest energy density of solar radiation, and the costly materials currently required. The development of materials and methods to improve solar energy conversion is primarily a scientific challenge: Breakthroughs in fundamental understanding ought to enable marked progress. There is plenty of room for improvement, since photovoltaic conversion efficiencies for inexpensive organic and dye-sensitized solar cells are currently about 10% or less, the conversion efficiency of photosynthesis is less than 1%, and the best solar thermal efficiency is 30%. The theoretical limits suggest that we can do much better. Solar conversion is a young science. Its major growth began in the 1970s, spurred by the oil crisis that highlighted the pervasive importance of energy to our personal, social, economic, and political lives. In contrast, fossil-fuel science has developed over more than 250 years, stimulated by the Industrial Revolution and the promise of abundant fossil fuels. The science of thermodynamics, for example, is intimately intertwined with the development of the steam engine. The Carnot cycle, the mechanical equivalent of heat, and entropy all played starring roles in the development of thermodynamics and the technology of heat engines. Solar-energy science faces an equally rich future, with nanoscience enabling the discovery of the guiding principles of photonic energy conversion and their use in the development of cost-competitive new technologies.

Crabtree, G. W.; Lewis, N. S. (Materials Science Division); (California Inst. of Tech.)

2008-03-01T23:59:59.000Z

395

Solar News  

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

news Office of Energy Efficiency & Renewable news Office of Energy Efficiency & Renewable Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585 en Energy Department Announces $19 Million to Drive Down Solar Soft Costs, Increase Hardware Efficiency http://energy.gov/eere/articles/energy-department-announces-19-million-drive-down-solar-soft-costs-increase-hardware solar-soft-costs-increase-hardware" class="title-link">Energy Department Announces $19 Million to Drive Down Solar Soft Costs, Increase Hardware Efficiency

396

Solar Decathlon  

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

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

397

Solar Cells  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Here we are using microwaves for increasing the surface area of titania nanopowders for energy based applications like dye sensitized solar ...

398

PAFC Cost Challenges  

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

PAFC Cost Challenges Sridhar Kanuri Manager, PAFC Technology *Sridhar.Kanuri@utcpower.com 2 AGENDA Purecell 400 cost challenge Cost reduction opportunities Summary 3 PURECELL ...

399

DOE Solar Decathlon: Solar Decathlon Videos  

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

Consumer Workshops Consumer Workshops Building Industry Workshops Technical Resources Sponsors Where Are the Houses Now? Quick Links Solar Decathlon Home Solar Decathlon 2011 Solar Decathlon 2009 Solar Decathlon 2007 Solar Decathlon 2005 Solar Decathlon 2002 Solar Decathlon 2011 Solar Decathlon Videos For video of the U.S. Department of Energy Solar Decathlon 2011, see the collections listed below or visit the U.S. Department of Energy Solar Decathlon YouTube Channel. General Solar Decathlon Videos Watch these videos to learn about the Solar Decathlon competition and event. Solar Decathlon House Video Tours Learn about each of the U.S. Department of Energy Solar Decathlon teams and their houses in these video tours. Solar Decathlon Team-Produced Videos Watch videos produced by the teams themselves for the Solar Decathlon

400

Financing Solar Thermal Power Plants  

DOE Green Energy (OSTI)

The commercialization of concentrating solar power technology took a major step forward in the mid 1980s and early 1990s with the development of the SEGS plants in California. Over the years they have proven that parabolic trough power technologies are the most cost-effective approach for commercial scale solar power generation in the sunbelt countries of the world. However, the question must be asked why no additional solar power plants have been build following the bankruptcy of the developer of the SEGS projects, LUZ International Limited. Although many believe the SEGS projects were a success as a result of parabolic trough technology they employ, in truth, the SEGS projects were developed simply because they represented an attractive opportunity for investors. Simply stated, no additional projects have been developed because no one has been able to put together a similarly attractive financial package to potential investors. More than $1.2 billion in private capital was raised i n debt and equity financing for the nine SEGS plants. Investors and bankers who make these investments are the real clients for solar power technologies. They are not interested in annual solar to electric efficiencies, but in risk, return on investments, and coverage ratios. This paper will take a look at solar power projects from the financier's perspective. The challenge in moving forward is to attract private investors, commercial lenders, and international development agencies and to find innovative solutions to the difficult issues that investment in the global power market poses for solar power technologies.

Price, H. W.; Kistner, R.

1999-11-01T23:59:59.000Z

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


401

DOE Solar Energy Technologies Program TPP Final Report - A Value Chain Partnership to Accelerate U.S. PV Industry Growth, GE Global Research  

DOE Green Energy (OSTI)

General Electric’s (GE) DOE Solar Energy Technologies TPP program encompassesd development in critical areas of the photovoltaic value chain that affected the LCOE for systems in the U.S. This was a complete view across the value chain, from materials to rooftops, to identify opportunities for cost reductions in order to realize the Department of Energy’s cost targets for 2010 and 2015. GE identified a number of strategic partners with proven leadership in their respective technology areas to accelerate along the path to commercialization. GE targeted both residential and commercial rooftop scale systems. To achieve these goals, General Electric and its partners investigated three photovoltaic pathways that included bifacial high-efficiency silicon cells and modules, low-cost multicrystalline silicon cells and modules and flexible thin film modules. In addition to these technologies, the balance of system for residential and commercial installations were also investigated. Innovative system installation strategies were pursed as an additional avenue for cost reduction.

Todd Tolliver; Danielle Merfeld; Charles Korman; James Rand; Tom McNulty; Neil Johnson; Dennis Coyle

2009-07-31T23:59:59.000Z

402

DOE Solar Decathlon: News Blog » Maryland  

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

Maryland Maryland Below you will find Solar Decathlon news from the Maryland archive, sorted by date. University of Maryland Solar Decathlon Team Celebrates With a Shed-Raising Monday, April 11, 2011 By Erin Pierce Editor's Note: This entry has been cross-posted from DOE's Energy Blog. In honor of the U.S. Department of Energy Solar Decathlon-which challenges 20 collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive-we are profiling each of the 20 teams participating in the competition. Photo of a group of people posing in front of a building shell. The WaterShed team with Solar Decathlon Director Richard King and University of Maryland faculty and officials at the shed-raising event April 7 (Credit: Jennifer Towbin/U.S. Department of Energy Solar Decathlon)

403

Energy Capture Improvement of a Solar PV System Using a Multilevel Inverter.  

E-Print Network (OSTI)

??The challenges with solar energy extraction are addressed in the proposed approach through development and demonstration of multilevel inverter architecture and the associated control algorithms.… (more)

Mahmud, Nayeem

2011-01-01T23:59:59.000Z

404

Using GIS and Remote Sensing Techniques for Solar Panel Installation Site Selection.  

E-Print Network (OSTI)

??Solar energy replacing conventional non-renewable energy has been widely implemented around the world. Currently, one of the most challenging problems is how to improve the… (more)

Li, Dongrong

2013-01-01T23:59:59.000Z

405

Integrating Variable Renewable Energy: Challenges and Solutions  

SciTech Connect

In the U.S., a number of utilities are adopting higher penetrations of renewables, driven in part by state policies. While power systems have been designed to handle the variable nature of loads, the additional supply-side variability and uncertainty can pose new challenges for utilities and system operators. However, a variety of operational and technical solutions exist to help integrate higher penetrations of wind and solar generation. This paper explores renewable energy integration challenges and mitigation strategies that have been implemented in the U.S. and internationally, including forecasting, demand response, flexible generation, larger balancing areas or balancing area cooperation, and operational practices such as fast scheduling and dispatch.

Bird, L.; Milligan, M.; Lew, D.

2013-09-01T23:59:59.000Z

406

Financial modeling of consumer discount rate in residential solar photovoltaic purchasing decisions.  

E-Print Network (OSTI)

??Diffusion of microgeneration technologies, particularly rooftop photovoltaic (PV), represents a key option in reducing emissions in the residential sector. This thesis uses a uniquely rich… (more)

Sigrin, Benjamin O.

2013-01-01T23:59:59.000Z

407

Solar PST | Open Energy Information  

Open Energy Info (EERE)

Solar PST Jump to: navigation, search Name Solar PST Place Bergondo, Spain Zip 15 165 Sector Solar Product Spanish company producing thermodynamic solar panels. References Solar...

408

Solar ponds  

DOE Green Energy (OSTI)

The different types of solar ponds are described, including the nonconvecting salt gradient pond and various saltless pond designs. Then the availability and cost of salts for salt gradient ponds are discussed and costs are compared. A simple computational model is developed to approximate solar pond performance. This model is later used to size solar ponds for district heating and industrial process heat applications. For district heating, ponds are sized to provide space conditioning for a group of homes, in different regions of the United States. Size requirement is on the order of one acre for a group of 25 to 50 homes. An economic analysis is performed of solar ponds used in two industrial process heat applications. The analysis finds that solar ponds are competitive when conventional heat sources are priced at $5 per million Btu and expected to rise in price at a rate of 10% per year. The application of solar ponds to the generation of electricity is also discussed. Total solar pond potential for displacing conventional energy sources is estimated in the range of from one to six quadrillion Btu per year in the near and intermediate future.

Jayadev, T.S.; Edesess, M.

1980-04-01T23:59:59.000Z

409

Kindly supported by the Research School of Asia and the Pacific (http://asiapacific.anu.edu.au/researchschool/)  

E-Print Network (OSTI)

scale structures Isabella Rosso 9.30 ­ 10:30 ENERGY and ADAPTATION Chair: Bob Webb Rooftop solar energy

410
411

NREL: Dynamic Maps, GIS Data, and Analysis Tools - GIS Mailing...  

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

Contents: Wind Barriers Impact Analysis, Wind Transportation Study, New Spatiotemporal Scenario Visualization Capabilities, Rooftop Photovoltaics Analysis, Solar Resource Data...

412

Electricity - Analysis & Projections - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Energy Information Administration ... such as a roof-top solar photovoltaic system, ... Reviews the Final Environmental Impact Statement ...

413

Solar Two  

DOE Green Energy (OSTI)

Solar Two is a concentrating solar power plant that can supply electric power on demand to the local utility, Southern California Edison Company. It can do so because it operates not only during sunny parts of the day, but it can store enough thermal energy from the sun to operate during cloudy periods and after dark, for up to three hours, at its rated output of 10 megawatts (MW). For the first time ever, a utility scale solar power plant can supply electricity when the utility needs it most, to satisfy the energy requirements of its customers.

Not Available

1998-04-01T23:59:59.000Z

414

SunShot Shoots for the Moon with First Grand Challenge Event | Department  

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

SunShot Shoots for the Moon with First Grand Challenge Event SunShot Shoots for the Moon with First Grand Challenge Event SunShot Shoots for the Moon with First Grand Challenge Event May 23, 2012 - 11:40am Addthis The Energy Department's SunShot Initiative focuses on making solar electricity cost-competitive by the end of the decade. | Photo courtesy of Dennis Schroeder/NREL. The Energy Department's SunShot Initiative focuses on making solar electricity cost-competitive by the end of the decade. | Photo courtesy of Dennis Schroeder/NREL. Ramamoorthy Ramesh Former Director, SunShot Initiative & Solar Energy Technologies Program How can I participate? The SunShot Initiative Grand Challenge: Summit and Technology Forum , taking place June 13 -14 in Denver, will focus on the progress made and challenges ahead for driving down the cost of solar technologies.

415

Manufacturing in Milwaukee: An Interview with the CEO of Helios...  

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

photo Solar startup to manufacture in Milwaukee Milwaukee solar installers putting in a rooftop solar energy system on Dr. Paula Papanek's home. | Photo courtesy of Dr. Paula...

416

Ben Franklin Partners Challenge Grant Program (Pennsylvania) | Department  

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

Ben Franklin Partners Challenge Grant Program (Pennsylvania) Ben Franklin Partners Challenge Grant Program (Pennsylvania) Ben Franklin Partners Challenge Grant Program (Pennsylvania) < Back Eligibility Commercial Institutional Schools Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Pennsylvania Program Type Grant Program Provider Department of Community and Economic Development The Ben Franklin Technology Partner's Challenge Grant and Alternative Energy Development Program (AEDP) provides funds to businesses through the four Ben Franklin Technology Partners for access to capital, business expertise, technology commercialization services to advance the development of new technologies and for the generation, conservation, and

417

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

The University of Wisconsin Interactive Solar Heating DesignProgram, , , , c, Solar Heating of Buildings and DomesticProperty Standards for Solar Heating and Domestic Hot Water

Berdahl, P.

2010-01-01T23:59:59.000Z

418

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

Program, , , , c, Solar Heating of Buildings and DomesticR.L. (1976): Solar Heating of Buildings and Domestic Hotthe costs. c. SOLAR HEATING OF BUILDINGS AND DOMESTIC HOT

Berdahl, P.

2010-01-01T23:59:59.000Z

419

Solar | Department of Energy  

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

Administration Other Agencies You are here Home Energy Sources Renewables Solar Solar July 12, 2013 Austin Energy - Value of Solar Residential Rate (Texas) Austin...

420

Solar | Department of Energy  

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

Administration Other Agencies You are here Home Energy Sources Renewables Solar Solar July 12, 2013 City of Tallahassee Utilities - Solar Water Heating Rebate The...

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


421

Solar | Department of Energy  

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

Administration Other Agencies You are here Home Energy Sources Renewables Solar Solar July 12, 2013 Austin Utilities - Solar Rebate Program Austin Utilities provides...

422

Solar | Department of Energy  

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

Administration Other Agencies You are here Home Energy Sources Renewables Solar Solar July 12, 2013 Commonwealth Solar Hot Water Commercial Program Feasibility study...

423

DOE Solar Decathlon: Visit  

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

Department of Energy Solar Decathlon 2013 at the Orange Country Great Park in Irvine, California The Solar Decathlon houses and surrounding Solar Decathlon village are open to...

424

Solar | Department of Energy  

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

October 8, 2009 DOE Announces 87 Million in Funding to Support Solar Energy Technologies Projects Aim to Accelerate Adoption of Solar Energy and Develop Solar Workforce September...

425

Solar | Department of Energy  

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

contracts which must be entered into in order to ensure uninterrupted solar access for solar energy devices. Solar easement agreements are required at a minimum to contain...

426

Solar | Department of Energy  

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

16, 2013 Solar Energy Technologies Solar energy technologies produce electricity from the energy of the sun. Small solar energy systems can provide electricity for homes,...

427

Solar | Department of Energy  

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

Solar, Wind, and Energy Efficiency Easements and Rights Laws Colorado's solar access laws, which date back to 1979, prohibit any residential covenants that restrict solar access....

428

Solar | Department of Energy  

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

loans for renewable energy and energy efficiency projects. Eligible renewable energy technologies include solar thermal, solar space heat, solar process heat,...

429

Solar | Department of Energy  

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

plan. October 16, 2013 Residential Solar and Wind Energy Systems Tax Credit Arizona's Solar Energy Credit is available to individual taxpayers who install a solar or wind...

430

Solar | Department of Energy  

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

is joining America's solar revolution. January 13, 2010 San Antonio is using these unique solar energy systems. | Photo courtesy CPS Energy San Antonio spurs increase in solar...

431

Solar forecasting review  

E-Print Network (OSTI)

2.1.2 European Solar Radiation Atlas (ESRA)for supplementing solar radiation network data,” FinalEstimating incident solar radiation at the surface from geo-

Inman, Richard Headen

2012-01-01T23:59:59.000Z

432

Solar forecasting review  

E-Print Network (OSTI)

2.1.2 European Solar Radiation Atlas (ESRA)2.4 Evaluation of Solar Forecasting . . . . . . . . .2.4.1 Solar Variability . . . . . . . . . . . . .

Inman, Richard Headen

2012-01-01T23:59:59.000Z

433

Solar | Department of Energy  

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

Consumers Power, Inc. - Solar Energy System Rebate Consumers Power, Inc. (CPI) offers rebates to its residential customers who install solar water heating systems or solar...

434

Solar | Department of Energy  

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

City of Boulder established a solar sales and use tax rebate for photovoltaic (PV) and solar water heating installations. Solar system owners may receive a rebate (essentially a...

435

Solar powered desalination system  

E-Print Network (OSTI)

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

436

Solar paraphotons  

E-Print Network (OSTI)

I revisit the question of production of paraphotons, or hidden photons, in the Sun and suggest that a simultaneous observations of solar flares by conventional instruments and by axion helioscopes may provide a discovery channel for paraphotons.

Troitsky, Sergey V

2011-01-01T23:59:59.000Z

437

Solar Easements  

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

In Kentucky, solar easements may be obtained for the purpose of ensuring access to direct sunlight. Easements must be expressed in writing and will become an interest in real property that may be...

438

Solar Powering Your Community: A Guide for Local Governments | January 2011b Printed on paper containing at least 50% wastepaper,  

E-Print Network (OSTI)

Implementing solar energy projects at federal facilities is a process. The project planning phase combined with limits on federal agency energy contracts create challenges for funding solar projects. Solar-funded or agency-appropriated projects have money designated for the outright purchase of a solar energy system

439

The Texas Solar D House  

E-Print Network (OSTI)

The Solar Decathlon provided a national forum for competition among fourteen university student teams, each of which designed, built, and operated a totally solar-powered home with a home office and their transportation needs using a solar-charged vehicle. The competition took place on the National Mall in Washington D.C., where each house was constructed and operated from September 18 to October 10, 2002. The competition consisted of ten contests focusing on energy production, energy-efficiency, design, thermal comfort, refrigeration, lighting, communication and transportation Professor Michael Garrison of the School of Architecture directed the University of Texas at Austin (UT) Solar Decathlon team along with Pliny Fisk, codirector of the non-profit Center for Maximum Potential Building Systems in Austin, Texas. The graduate student team developed a design that features an open building system using a reusable kit of parts that sits lightly on the land and forms the superstructure around a mobile utility environment. Our investigations suggest that progressive technologies offer solutions to the serious emerging challenges of energy efficiency and sustainable development and thereby become a strong design shaping force. These progressive technologies: photovoltaic (PV) power, passive solar heating, daylighting, natural ventilation, and solar hot water heating were integrated with concepts of affordability and energy conservation to help promote an ideology of sustainable architecture.

Garrison, M.

2004-01-01T23:59:59.000Z

440

CX-010739: Categorical Exclusion Determination | Department of Energy  

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

39: Categorical Exclusion Determination 39: Categorical Exclusion Determination CX-010739: Categorical Exclusion Determination Golden State Solar Impact CX(s) Applied: A9, A11 Date: 08/15/2013 Location(s): California Offices(s): Golden Field Office The California Center for Sustainable Energy as part of its Golden State Solar Impact project would use DOE and cost share funding, as part of the Rooftop Solar Challenge II Cooperative Agreement, to leverage the knowledge, experience and relationships developed by California participants in Phase I Rooftop Solar Challenge to eliminate market barriers and reduce the soft costs related to the deployment of solar energy at the local government level. CX-010739.pdf More Documents & Publications CX-010757: Categorical Exclusion Determination CX-010743: Categorical Exclusion Determination

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


441

Solar Energy  

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

Energy-linked challenges: * Energy price volatility * Dependence on and cost of imported fossil fuels * Potential fossil fuel supply constraints * Health & environmental impacts *...

442

International comparison of passive solar simulation codes  

DOE Green Energy (OSTI)

Two software-software comparisons of passive solar simulation codes have been conducted by the Passive Solar Applications Group of the Committee on the Challenges to Modern Society. These exercises have involved the simulation of hypothetical Trombe wall and direct gain buildings located in Madison, Wisconsin. The countries that have participated in the exercise include Canada, Denmark, France, and the United States. All results available at the time of writing are discussed in this report.

Wray, W.O.

1980-01-01T23:59:59.000Z

443

Middlebury Students Practice 'Self-Reliance' with Solar Decathlon House |  

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

Middlebury Students Practice 'Self-Reliance' with Solar Decathlon Middlebury Students Practice 'Self-Reliance' with Solar Decathlon House Middlebury Students Practice 'Self-Reliance' with Solar Decathlon House April 19, 2011 - 12:48pm Addthis The Self-Reliance team at their recent "wall-raising" event. | Photo Courtesy of the Middlebury Solar Decathlon team The Self-Reliance team at their recent "wall-raising" event. | Photo Courtesy of the Middlebury Solar Decathlon team April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs How can I participate? The next Solar Decathlon will be held Sept. 23-Oct. 2, 2011, at the National Mall's West Potomac Park in Washington, D.C. In honor of the U.S Department of Energy's Solar Decathlon -- which challenges 20 collegiate teams to design, build, and operate solar-powered

444

Are You Attending Solar Decathlon This Year? | Department of Energy  

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

Attending Solar Decathlon This Year? Attending Solar Decathlon This Year? Are You Attending Solar Decathlon This Year? September 22, 2011 - 6:45am Addthis Amanda Crosby, right, and Belinda Dods of New Zealand celebrate placing the final screw on the deck of their house at Solar Decathlon 2011. Amanda Crosby, right, and Belinda Dods of New Zealand celebrate placing the final screw on the deck of their house at Solar Decathlon 2011. This Friday marks the first day of Solar Decathlon 2011, an annual event that challenges collegiate teams-from the United States and around the world-to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. This week we've been highlighting the launch date of Solar Decathlon: Chris introduced us to the event and posted a video, and we re-posted a

445

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

Constant Solar Noon Solar Time Sun Cha rt Sunshine Hours Seeof people and sun creates a high potential for solar energyposition of the sun, The relationship between solar time and

Berdahl, P.

2010-01-01T23:59:59.000Z

446

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

Radiation in Canada. Solar Energy ~, p.153. Threlkeld, J.L.pool. As the use of solar energy becomes more widespread,a high potential for solar energy use. Solar-heated swimming

Berdahl, P.

2010-01-01T23:59:59.000Z

447

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

Solar Information. . . . A. Solar Spectrum. . . . . . .measure a part of the solar spectrum, usually the red andin Fig. 1 shows the solar spectrum Q Ii! N til SEA-LEVEL

Berdahl, P.

2010-01-01T23:59:59.000Z

448

DOE Solar Decathlon: News Blog » Blog Archive » California...  

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

California Challenge Brings Energy-Efficient Racing to the U.S. Department of Energy Solar Decathlon 2013 and XPO Friday, August 23, 2013 By Amy Vaughn Mark your calendars for an...

449

Theoretical investigation of solar energy conversion and water oxidation catalysis  

E-Print Network (OSTI)

Solar energy conversion and water oxidation catalysis are two great scientific and engineering challenges that will play pivotal roles in a future sustainable energy economy. In this work, I apply electronic structure ...

Wang, Lee-Ping

2011-01-01T23:59:59.000Z

450

DOE Solar Decathlon: News Blog » Blog Archive » Miami Students' Solar  

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

Miami Students' Solar Decathlon Design Focused on Sustainability Miami Students' Solar Decathlon Design Focused on Sustainability Tuesday, April 5, 2011 By Erin Pierce Editor's Note: This entry has been cross-posted from DOE's Energy Blog. In honor of the U.S. Department of Energy Solar Decathlon-which challenges 20 collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive-we are profiling each of the 20 teams participating in the competition. For our latest story, we spoke with Michelle Marcovits of Florida International University about the team's design-called the perFORM[D]ance House. Photo of a model of perFORM[D]ance House. A model of Florida International University's Solar Decathlon entry (Credit: All Commercial Photography/U.S. Department of Energy Solar

451

DOE Solar Decathlon: Solar Decathlon China  

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

China Logo of SD China. Solar Decathlon China is the most recent addition to the international family of Solar Decathlon competitions. Solar Decathlon China is the result of a...

452

Concentrating Solar Power  

DOE Green Energy (OSTI)

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

Not Available

2008-09-01T23:59:59.000Z

453

Mobile Solar Tracker Facility  

Science Conference Proceedings (OSTI)

Mobile Solar Tracker Facility. ... NIST's mobile solar tracking facility is used to characterize the electrical performance of photovoltaic panels. ...

2011-11-15T23:59:59.000Z

454

Solar forecasting review  

E-Print Network (OSTI)

ASME Journal of Solar Energy Engineering (in press), 2012. [ASME Journal of Solar Energy Engineering (in press), 2012. [

Inman, Richard Headen

2012-01-01T23:59:59.000Z

455

Solar ADEPT: Efficient Solar Energy Systems  

DOE Green Energy (OSTI)

Solar ADEPT Project: The 7 projects that make up ARPA-E's Solar ADEPT program, short for 'Solar Agile Delivery of Electrical Power Technology,' aim to improve the performance of photovoltaic (PV) solar energy systems, which convert the sun's rays into electricity. Solar ADEPT projects are integrating advanced electrical components into PV systems to make the process of converting solar energy to electricity more efficient.

None

2011-01-01T23:59:59.000Z

456

Investing in America's Solar Workforce | Department of Energy  

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

Investing in America's Solar Workforce Investing in America's Solar Workforce Investing in America's Solar Workforce October 11, 2012 - 4:26pm Addthis Energy Secretary Steven Chu meets with students from Front Range Community College at the Solar Instructor Training Network exhibit at the SunShot Grand Challenge Summit and Technology Forum in Colorado. | Photo by Dennis Schroeder, NREL. Energy Secretary Steven Chu meets with students from Front Range Community College at the Solar Instructor Training Network exhibit at the SunShot Grand Challenge Summit and Technology Forum in Colorado. | Photo by Dennis Schroeder, NREL. Minh Le Minh Le Program Manager, Solar Program How Do I Access Photovoltaic Online Training? Visit the PVOT website.

457

The risks and efficacy of solar geoengineering  

DOE Green Energy (OSTI)

Solar geoengineering may enable a significant reduction in climate risks by partially offsetting climate change due to increasing greenhouse gases, however this emerging technology entails novel risks and uncertainties along with serious challenges to global governance. I will attempt a rough summary of the physics of solar geoengineering and present recent findings regarding (a) the climate's response to radiative forcing by stratospheric aerosols, (b) methods of producing appropriate aerosol distributions, and (c) risks. In closing I will discuss the trade-off between solar geoengineering, emissions reductions and adaptation in climate policy.

Keith, David [Harvard University

2012-12-05T23:59:59.000Z

458

Exploratory Research for New Solar Electric Technologies  

SciTech Connect

We will review highlights of exploratory research for new PV technologies funded by the DOE Solar Energy Technologies Program through NREL and its Photovoltaic Exploratory Research Project. The goal for this effort is highlighted in the beginning of the Solar Program Multi-Year Technical Plan by Secretary of Energy Spencer Abraham's challenge to leapfrog the status quo by pursuing research having the potential to create breakthroughs. The ultimate goal is to create solar electric technologies for achieving electricity costs below 5 cents/kWh. Exploratory research includes work on advanced photovoltaic technologies (organic and ultra-high efficiency solar cells for solar concentrators) as well as innovative approaches to emerging and mature technologies (e.g., crystalline silicon).

McConnell, R.; Matson, R.

2005-01-01T23:59:59.000Z

459

Exploratory Research for New Solar Electric Technologies  

DOE Green Energy (OSTI)

We will review highlights of exploratory research for new PV technologies funded by the DOE Solar Energy Technologies Program through NREL and its Photovoltaic Exploratory Research Project. The goal for this effort is highlighted in the beginning of the Solar Program Multi-Year Technical Plan by Secretary of Energy Spencer Abraham's challenge to leapfrog the status quo by pursuing research having the potential to create breakthroughs. The ultimate goal is to create solar electric technologies for achieving electricity costs below 5 cents/kWh. Exploratory research includes work on advanced photovoltaic technologies (organic and ultra-high efficiency solar cells for solar concentrators) as well as innovative approaches to emerging and mature technologies (e.g., crystalline silicon).

McConnell, R.; Matson, R.

2005-01-01T23:59:59.000Z

460

Solar Energy Technologies Program: Solar Multimedia  

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

Energy Efficiency and Renewable Energy Energy Efficiency and Renewable Energy EERE Home Programs & Offices Consumer Information Solar Multimedia search Home EERE » SunShot Initiative » Solar Multimedia Printable Version Bookmark and Share Feature Photo of 3 solar dishes, which have reflective, square-shaped material that creates a mirror image of the sky and clouds. Each dish is anchored to the ground by a vertical pole. Solar Dish - Albuquerque, New Mexico Credit: Sandia National Laboratories/Randy Montoya Solar Technologies Photovoltaics Photovoltaics Concentrating Solar Power Concentrating Solar Power Solar Applications Residential Residential Commercial Commercial Large Installations Large Installations City and County City and County Federal Federal Manufacturing Manufacturing Development and Testing

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


461

Solar Easements & Local Option Solar Rights Laws  

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

Utah's solar easement provisions are similar to easement provisions in many other states. Parties may voluntarily enter into written solar easement contracts that are enforceable by law. An...

462

Solar Energy: What's next for Solar Technology  

Solar Energy: What’s next for Solar Technology John P. Benner Group Leader, Electronic Materials and Devices. National Center for Photovoltaics. National Renewable ...

463

Energy Department Announces SunShot Startup Investments and Competition to  

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

SunShot Startup Investments and SunShot Startup Investments and Competition to Unleash Cost-Competitive Solar Energy Energy Department Announces SunShot Startup Investments and Competition to Unleash Cost-Competitive Solar Energy June 13, 2012 - 11:00am Addthis WASHINGTON -- As part of the Energy Department's SunShot Initiative, which aims to drive solar to cost-competition with other energy sources by 2020, Secretary Steven Chu today announced a new competition and investments to make it easier and cheaper for utilities, businesses and consumers to deploy clean, renewable solar energy. While speaking at the SunShot Grand Challenge Summit in Denver, Secretary Chu announced the "America's Most Affordable Rooftop Solar" competition to aggressively drive down the cost of rooftop solar energy systems as well as nearly $8 million

464

Solar heater  

SciTech Connect

The invention is a solar heater which may function as a humidifier and which has a reflector that is constructed to provide a window, and external thermal insulation. The window has a cover that is positioned to transmit solar radiation to the reflector. The top portion of the reflector has an opening, and a container is removably positioned in the opening. The reflector has a geometry that reflects a high percentage of solar energy to the container, which has a surface with high absorptance. The container has a removable lid for confining heat within the container for certain functions, such as boiling water or drying clothes. When used as a humidifier, the container is filled with water and the lid is removed.

Hill, C.W.

1981-06-23T23:59:59.000Z

465

Solar Neutrinos  

DOE R&D Accomplishments (OSTI)

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

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

1964-12-00T23:59:59.000Z

466

Situational Awareness for Wind and Solar Power Monitoring  

Science Conference Proceedings (OSTI)

As the electric power industry advances toward the concept of a renewable energy-friendly smart grid, understanding the complications and challenges of wind and solar generation on transmission and distribution (T&D) operations becomes increasingly important. This report describes research on information display requirements for wind and solar power monitoring visualization tools.

2009-12-08T23:59:59.000Z

467

Minneapolis and Saint Paul, Minnesota: Solar in Action (Brochure)  

Science Conference Proceedings (OSTI)

This brochure provides an overview of the challenges and successes of Minneapolis, MN, a 2008 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.

Not Available

2011-10-01T23:59:59.000Z

468

Salt Lake City, Utah: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of Salt Lake City, UT, 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.

Not Available

2011-10-01T23:59:59.000Z

469

New York City, New York: Solar in Action (Brochure)  

DOE Green Energy (OSTI)

This brochure provides an overview of the challenges and successes of New York City, NY, 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.

Not Available

2011-10-01T23:59:59.000Z

470

Bonded Bracket Assmebly for Frameless Solar Panels  

SciTech Connect

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 6���¢/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 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. 4) Reduce the sum of all cost impacts in topic #2 from a baseline total of $2.05/watt to $.34/watt.

Murray, Todd

2013-01-30T23:59:59.000Z

471

Other Challenges | Data.gov  

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

DataTools ResearchTech Services Apps Challenges Blogs Let's Talk Manufacturing You are here Data.gov Communities Manufacturing Challenge.gov Energy Challenges...

472

Education Challenges | Data.gov  

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

Challenges Education Grants Developers Data Apps Challenges International Classroom Education You are here Data.gov Communities Education Education Challenges Interested in...

473

DOE Solar Decathlon: News Blog » Solar Decathlon 2009  

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

Skip Navigation to Main Content U.S. Department of Energy Solar Decathlon Solar Decathlon Home Blog Home Posts Tagged 'Solar Decathlon 2009' Solar Decathlon Alumni Association...

474

California Solar Initiative - Single-Family Affordable Solar...  

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

California Solar Initiative - Single-Family Affordable Solar Housing (SASH) Program California Solar Initiative - Single-Family Affordable Solar Housing (SASH) Program Eligibility...

475

California Solar Initiative - Multi-Family Affordable Solar Housing...  

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

California Solar Initiative - Multi-Family Affordable Solar Housing (MASH) Program California Solar Initiative - Multi-Family Affordable Solar Housing (MASH) Program < Back...

476

SOLAR ENERGY FOR ACADEMIC INSTITUTIONS Solar Suitability Assessment  

E-Print Network (OSTI)

SOLAR ENERGY FOR ACADEMIC INSTITUTIONS Solar Suitability Assessment of Dalhousie University..................................................................................................................... 1 2 Solar Resource Assessment ........................................................................................... 2 2.1 Solar Radiation

Brownstone, Rob

477

Solar Easements and Local Option Solar Rights Laws | Department...  

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

Solar Easements and Local Option Solar Rights Laws Solar Easements and Local Option Solar Rights Laws < Back Eligibility Commercial Fed. Government Industrial Local Government...

478

DOE Solar Decathlon: News Blog » Blog Archive » Solar Decathlon...  

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

Architecture Comfort Zone Energy Balance Engineering Home Entertainment Hot Water Market Appeal Events Media Solar Decathlon Solar Decathlon 2009 Solar Decathlon 2011 Solar...

479

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

Open Energy Info (EERE)

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

480

2007 Challenge X Competition  

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

Year Three of Argonne-Managed Challenge X Competition Comes to a Close Year Three of Argonne-Managed Challenge X Competition Comes to a Close Group shot of winning Mississippi State University team after Challenge X awards ceremony First place Mississippi State team after the Challenge X 2007 Final Awards ceremony held at GM World Headquarters in Detroit, Michigan on June 7, 2007. Photo © Roy Feldman. The third year of the four-year, Argonne-managed Challenge X collegiate engineering competition came to a close on June 7, 2007, with Mississippi State University taking top honors. Staff and engineers from Argonne National Laboratory have managed Challenge X and its predecessor competitions since the Department of Energy (DOE) first began holding them in the early 1990s. In the current year's competition, the Mississippi State team was among 17

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


481

Energy Basics: Solar Energy Technologies  

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

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Solar Photovoltaics Concentrating Solar Power Solar...

482

Energy Basics: Solar Energy Resources  

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

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Solar Photovoltaics Concentrating Solar Power Solar...

483

Sylcom Solar | Open Energy Information  

Open Energy Info (EERE)

research, distribution, construction, operation, maintenance of products and of Photovoltaic Solar, Thermal Solar and Solar Thermoelectric installations. References Sylcom...

484

Solar collectors  

SciTech Connect

Reasons are reviewed for selection of building shapes which are very unsatisfactory from the viewpoint of making rational use of solar energy for room comfort, and to reduce room heating costs. How to make best direct use of this energy source both by better building design and building installations and more careful control of energy use in towns is examined.

Borasi, V.

1974-12-01T23:59:59.000Z

485

Solar oven  

Science Conference Proceedings (OSTI)

A portable, foldable solar oven is provided wherein the basic construction material is ordinary cardboard, some surfaces of which are coated with a reflective material. The portable oven doubles as an insulated container for keeping refrigerated foodstuffs cold while being transported to a distant site for cooking.

Golder, J.C.

1981-10-06T23:59:59.000Z

486

Solar cooker  

SciTech Connect

A solar cooking device made of a flat array of concentric mirrors tilted to focus at a small area, the array being movable mounted on a stand to be movable around a ball joint and with a carrier for a cooking vessel held by a double crank to be at the focal area of the mirrors.

Long, J. B.; Ware, R. R.

1985-12-31T23:59:59.000Z

487

Coal Combustion Products: Challenges  

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

Products: Challenges and Opportunities American Coal Ash Association Conference St. Petersburg, FL January 27-30, 2003 Carl O. Bauer National Energy Technology Laboratory...

488

Argonne Transportation - Challenge Bibendum  

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

mobility. Every year, the Challenge presents the best inventions from the world's largest vehicle manufacturers, equipment manufacturers, and energy suppliers through a series of...

489

ENERGY STAR Challenge  

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

STAR Challenge for Industry Participant Handbook June 2013 ENERGY STAR is a U.S. Environmental Protection Agency Program helping organizations and individuals fight climate change...

490

Solar Kit Lessons  

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

Solar Kit Lessons Middle School Curriculum Created by Northeast Sustainable Energy Association (NESEA) Click on the links below to take you to the Chapter heading: Solar Cell Inquiry Sunshine Timer Parts of a Solar Panel Part 1 Parts of a Solar Panel Part 2 Build a Simple Ammeter Solar-Powered Battery Charger Positioning Solar Panels 1 Positioning Solar Panels 2 Properties of Solar Radiation: Reflection, Transmission, and Absorption Properties of Solar Radiation: Direct and Diffuse Light Power Maximum: An Electrical Determination Calibration Curve for a Radiation Meter Solarize a Toy Solar Cells as Control Devices Solar-Powered Electrolysis of Water and the Hydrogen Economy Solar Kit Lesson #1 Solar Cell Inquiry TEACHER INFORMATION LEARNING OUTCOME

491

Marin Solar | Open Energy Information  

Open Energy Info (EERE)

Marin Solar Jump to: navigation, search Name Marin Solar Place San Rafael, California Zip 94901 Sector Solar Product Marin Solar is a residential installer of photovoltaic systems....

492

Declination Solar | Open Energy Information  

Open Energy Info (EERE)

Declination Solar Jump to: navigation, search Name Declination Solar Place San Francisco, California Sector Solar Product San Francisco solar installation firm acquired by...

493

Carlson Solar | Open Energy Information  

Open Energy Info (EERE)

Carlson Solar Jump to: navigation, search Name Carlson Solar Place California Sector Solar Product Carlson Solar is an installer of residential and small-scale commercial...

494

Aztec Solar | Open Energy Information  

Open Energy Info (EERE)

Aztec Solar Jump to: navigation, search Name Aztec Solar Place Rancho Cordova, California Zip 95742 Sector Solar Product Installer of solar hot water and pool heating systems....

495

Sereno Solar | Open Energy Information  

Open Energy Info (EERE)

Sereno Solar Jump to: navigation, search Name Sereno Solar Place Monte Sereno, California Sector Solar Product Has developed a solar passive water heating panel to be installed...

496

Solar Mimizan | Open Energy Information  

Open Energy Info (EERE)

Solar Mimizan Jump to: navigation, search Name Solar Mimizan Place PARIS, France Zip 75002 Sector Solar Product Paris-based, building-integrated solar power plant developer....

497

Apex Solar | Open Energy Information  

Open Energy Info (EERE)

Apex Solar Place Sofia, Bulgaria Zip 1616 Sector Solar Product Bulgarian PV and solar thermal project developer and installer. References Apex Solar1 LinkedIn Connections...

498

Solar Monkey | Open Energy Information  

Open Energy Info (EERE)

search Name Solar Monkey Place Irvine, California Zip 92618 Sector Solar Product Solar Monkey installs PV systems for commercial and industrial users. References Solar...

499

ESPEE Solar | Open Energy Information  

Open Energy Info (EERE)

Solar Place Bangalore, Karnataka, India Zip 560 091 Sector Solar Product Distributor of solar thermal water heating systems and PV lights. References ESPEE Solar1 LinkedIn...

500

Evolution Solar | Open Energy Information  

Open Energy Info (EERE)

Solar Place Road Town Tortola, United Kingdom Sector Solar Product British Virgin Islands-based solar energy company dedicated to establishing solar panel factories in the...