National Library of Energy BETA

Sample records for leds gp members

  1. LEDS GP Success Story: Fostering Coordinated LEDS Support in Kenya (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-03-01

    The LEDS Global Partnership (LEDS GP) strives to advance climate-resilient, low-emission development through catalyzing collaboration, information exchange, and action on the ground. The Government of Kenya is a key LEDS GP member and offers an inspiring example of how LEDS GP is having an impact globally. The 2012 LEDS Collaboration in Action workshop in London provided an interactive space for members to share experiences on cross-ministerial LEDS leadership and to learn about concrete development impacts of LEDS around the world. Inspired by these stories, the Kenya's Ministry of State for Planning, National Development and Vision 2030 (MPND) began to collaborate closely with the Ministry of Environment and Mineral Resources to create strong links between climate change action and development in the country, culminating in the integration of Kenya's National Climate Change Action Plan and the country's Medium Term Development Plan.

  2. Text-Alternative Version: MSSLC Member Case Studies - LED Street...

    Energy Savers [EERE]

    MSSLC Member Case Studies - LED Street Lighting Programs Webinar Text-Alternative Version: MSSLC Member Case Studies - LED Street Lighting Programs Webinar Below is the ...

  3. Text-Alternative Version: MSSLC Member Case Studies- LED Street Lighting Programs Webinar

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the "MSSLC Member Case Studies - LED Street Lighting Programs" webcast, held May 8, 2013.

  4. Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA)

    Broader source: Energy.gov [DOE]

    This May 8, 2013 webcast featured presentations from DOE Municipal Solid-State Street Lighting Consortium member cities about their experiences with LED street lighting. Presenters John Bilsten of...

  5. LED

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

    ... Cost The high-brightness, rapidly pulsed, multicolor light-emitting diode (LED) driver delivers lighting performance that exceeds that of conventional (laserarc-light) sources ...

  6. Members

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

    Members Michael J. Anderson (Esmeralda County) â€" A resident of Goldfield, Nevada, Mr. Anderson is the public works/utilities director for Esmeralda County and volunteer fire chief. A veteran of the U.S. Navy, he attended schools in marine propulsion and has received certifications in welding from Mt. Hood Community College and water/wastewater treatment from the state of Nevada. Mr. Anderson is a member of the Masons and the National Rifle Association. His interests include public

  7. GP Solarpark | Open Energy Information

    Open Energy Info (EERE)

    GP Solarpark provides project engineering, construction and establishment of photovoltaic power plants. References: GP Solarpark1 This article is a stub. You can help...

  8. ARM - Instrument - gp

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

    you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Global Positioning System (GP) <-- Picture of the Global Positioning System (GPS) --> General...

  9. LED Pulser

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

    ... Cost The high-brightness, rapidly pulsed, multicolor light-emitting diode (LED) driver delivers lighting performance that exceeds that of conventional (laserarc-light) sources ...

  10. LED Update

    SciTech Connect (OSTI)

    Johnson, Mark L.; Gordon, Kelly L.

    2006-09-01

    This article, which will appear in RESIDENTIAL LIGHTING MAGAZINE, interviews PNNL's Kelly Gordon and presents the interview in question and answer format. The topic is a light emitting diode (LED) lighting also known as solid state lighting. Solid state lighting will be a new category in an energy efficient lighting fixture design competition called Lighting for Tomorrow sponsored by the US Department of Energy Emerging Technologies Office, the American Institute for Lighting, and the Consortium for Energy Efficiency. LED technology has been around since the ’60s, but it has been used mostly for indicator lights on electronics equipment. The big breakthrough was the development in the 1990s of blue LEDs which can be combined with the red and green LEDs that already existed to make white light. LEDs produce 25 to 40 lumens of light per watt of energy used, almost as much as a CFL (50 lumens per watt) and much more efficient than incandescent sources, which are around 15 lumens per watt. They are much longer lived and practical in harsh environments unsuitable for incandescent lighting. They are ready for niche applications now, like under-counter lighting and may be practical for additional applications as technological challenges are worked out and the technology is advancing in leaps and bounds.

  11. LED lamp

    DOE Patents [OSTI]

    Galvez, Miguel; Grossman, Kenneth; Betts, David

    2013-11-12

    There is herein described a lamp for providing white light comprising a plurality of light sources positioned on a substrate. Each of said light sources comprises a blue light emitting diode (LED) and a dome that substantially covers said LED. A first portion of said blue light from said LEDs is transmitted through said domes and a second portion of said blue light is converted into a red light by a first phosphor contained in said domes. A cover is disposed over all of said light sources that transmits at least a portion of said red and blue light emitted by said light sources. The cover contains a second phosphor that emits a yellow light in response to said blue light. The red, blue and yellow light combining to form the white light and the white light having a color rendering index (CRI) of at least about 80.

  12. GP Batteries International Limited | Open Energy Information

    Open Energy Info (EERE)

    International Limited is principally engaged in the development, manufacture and marketing of batteries and battery-related products. References: GP Batteries International...

  13. EA-319-A Fortis Energy Marketing & Trading GP (BNP Paribas Energy...

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

    -A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) EA-319-A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) Order authorizing Fortis ...

  14. FTCP Members

    Broader source: Energy.gov [DOE]

    Federal Technical Capability Program Members (FTCP) Panel including FTCP Chair, Agents, Alternate Agents and other Representatives

  15. EA-319-A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading

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

    GP) | Department of Energy -A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) EA-319-A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) Order authorizing Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) to export electric energy to Canada EA-319-A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) (52.17 KB) More Documents & Publications EA-319 Fortis Energy Marketing & Trading GP Listing

  16. Interagency Energy Management Task Force Members

    Broader source: Energy.gov [DOE]

    The Interagency Energy Management Task Force is led by the Federal Energy Management Program director. Members include energy and sustainability managers from federal agencies.

  17. LED Color Characteristics

    SciTech Connect (OSTI)

    2012-01-01

    Color quality is an important consideration when evaluating LED-based products for general illumination. This fact sheet reviews the basics regarding light and color and summarizes the most important color issues related to white-light LED systems.

  18. LED Color Characteristics

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

    LED Color Characteristics Color quality is an important consideration when evaluating lighting products. This fact sheet reviews the fundamentals regarding light and color, summarizing the most important color issues related to white-light LED systems, including color consistency, stability, tuning, and rendering, as well as chromaticity. LED Emission Attributes Individual LED dies, often referred to as chips, emit light in a narrow range of wavelengths, giving the appearance of a monochromatic

  19. Energy Efficiency of LEDs

    Broader source: Energy.gov [DOE]

    This fact sheet discusses the current state of the LED market and discusses package efficacy, luminaire efficacy, and application efficacy.

  20. Cree LED Lighting Solutions Formerly LED Lighting Fixtures LLF...

    Open Energy Info (EERE)

    LED Lighting Solutions Formerly LED Lighting Fixtures LLF Jump to: navigation, search Name: Cree LED Lighting Solutions (Formerly LED Lighting Fixtures (LLF)) Place: Morrisville,...

  1. Member Case Studies: LED Street Lighting Programs in Algona ...

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

    Presenters John Bilsten of Algona (IA) Municipal Utilities, Maggie Ullman of the City of Asheville (NC), and Glenn Cooper of the City of Boston (MA) discussed planning, financing, ...

  2. Hyperion 5113/GP Infrasound Sensor Evaluation.

    SciTech Connect (OSTI)

    Merchant, Bion J.

    2015-08-01

    Sandia National Laboratories has tested and evaluated an infrasound sensor, the 5113/GP manufactured by Hyperion. These infrasound sensors measure pressure output by a methodology developed by the University of Mississippi. The purpose of the infrasound sensor evaluation was to determine a measured sensitivity, transfer function, power, self-noise, dynamic range, and seismic sensitivity. These sensors are being evaluated prior to deployment by the U.S. Air Force.

  3. LED MR16 Lamps

    SciTech Connect (OSTI)

    2012-07-01

    Solid-state lighting program technology fact sheet that describes the performance of LED MR16 lamps and discusses electronic compatibility concerns.

  4. Establishing LED Equivalency

    SciTech Connect (OSTI)

    2011-10-01

    Solid-state lighting program technology fact sheet that provides guidance for comparing products based on LED or other light source technologies.

  5. LED Color Stability

    SciTech Connect (OSTI)

    2014-03-01

    DOE Solid-State Lighting program technology fact sheet that addresses key questions about color stability and color shift in LED lighting applications.

  6. General Service LED Lamps

    SciTech Connect (OSTI)

    2012-04-01

    Solid-state lighting program technology fact sheet that compares general service incandescent lamps—i.e., light bulbs—to LED and CFL alternatives.

  7. LED Street Lighting

    Energy Savers [EERE]

    1, 2016 LED Street Lighting The American Medical Association's (AMA) recently adopted community guidance on street lighting adds another influential voice to issues that have been ...

  8. Recessed LED Downlights

    SciTech Connect (OSTI)

    2012-05-01

    Solid-state lighting program technology fact sheet that briefly discusses different LED product types and their performance relative to downlights utilizing traditional lamps.

  9. LED Color Characteristics

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

    a combina- tion of colored LEDs typically red, green, and blue (RGB) are also available. ... triphosphor uorescent, utilize a combination of red-, blue-, and green-emitting phosphors. ...

  10. General Service LED Lamps

    Broader source: Energy.gov [DOE]

    A U.S. DOE SSL technology fact sheet that compares general service LED light bulbs with incandescent and CFL bulbs.

  11. high-power LEDs

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

    ... Cost The high-brightness, rapidly pulsed, multicolor light-emitting diode (LED) driver delivers lighting performance that exceeds that of conventional (laserarc-light) sources ...

  12. LED Frequently Asked Questions

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

    Courtesy of Osram Opto Semiconductor. LED light sources used in a residential application. Terms SSL - solid-state lighting; umbrella term for semiconductors used to convert ...

  13. Elastomeric member

    DOE Patents [OSTI]

    Hoppie, Lyle O.

    1985-01-01

    An energy storage device (10) is disclosed consisting of a stretched elongated elastomeric member (16) disposed within a tubular housing (14), which elastomeric member (16) is adapted to be torsionally stressed to store energy. The elastomeric member (16) is configured in the relaxed state with a uniform diameter body section (74), and transition end sections (76, 78), attached to rigid end piece assemblies (22, 24) of a lesser diameter. The profile and deflection characteristic of the transition sections (76, 78) are such that upon stretching of the elastomeric member (16), a substantially uniform diameter assembly results, to minimize the required volume of the surrounding housing (14). Each of the transition sections (76, 78) are received within and bonded to a woven wire mesh sleeve (26, 28) having helical windings at a particular helix angle to control the deflection of the transition section. Each sleeve (26, 28) also contracts with the contraction of the associated transition section to maintain the bond therebetween. During manufacture, the sleeves (26, 28) are forced against a forming surface and bonded to the associated transition section (76, 78) to provide the correct profile and helix angle.

  14. Elastomeric member

    DOE Patents [OSTI]

    Hoppie, L.O.

    1985-07-30

    An energy storage device is disclosed consisting of a stretched elongated elastomeric member disposed within a tubular housing, which elastomeric member is adapted to be torsionally stressed to store energy. The elastomeric member is configured in the relaxed state with a uniform diameter body section, and transition end sections, attached to rigid end piece assemblies of a lesser diameter. The profile and deflection characteristic of the transition sections are such that upon stretching of the elastomeric member, a substantially uniform diameter assembly results, to minimize the required volume of the surrounding housing. Each of the transition sections are received within and bonded to a woven wire mesh sleeve having helical windings at a particular helix angle to control the deflection of the transition section. Each sleeve also contracts with the contraction of the associated transition section to maintain the bond there between. During manufacture, the sleeves are forced against a forming surface and bonded to the associated transition section to provide the correct profile and helix angle. 12 figs.

  15. Energy Efficiency of LEDs

    SciTech Connect (OSTI)

    2013-03-01

    Solid-state lighting program technology fact sheet on energy efficiency of LEDs, characterizing the current state of the market and discussing package efficacy, luminaire efficacy, and application efficacy.

  16. LED Directional Lamps

    SciTech Connect (OSTI)

    2012-11-01

    Solid-state lighting program technology fact sheet that provides an overview of the current performance of LED PAR-, BR-, R-, and AR-shaped lamps, which were all investigated by CALiPER in 2012.

  17. Optical Safety of LEDs

    SciTech Connect (OSTI)

    none,

    2013-06-01

    Solid-state lighting program technology fact sheet that clarifies the issue of LED lighting safety for the human eye and takes a look at current standards for photobiological safety.

  18. LED Frequently Asked Questions

    SciTech Connect (OSTI)

    2011-05-01

    Solid-state lighting program technology fact sheet that provides an overview of what retailers, energy efficiency advocates, and consumers need to know to make informed LED buying decisions.

  19. Prospects for LED lighting.

    SciTech Connect (OSTI)

    Tsao, Jeffrey Yeenien; Gee, James Martin; Simmons, Jerry Alvon

    2003-08-01

    Solid-state lighting using light-emitting diodes (LEDs) has the potential to reduce energy consumption for lighting by 50% while revolutionizing the way we illuminate our homes, work places, and public spaces. Nevertheless, substantial technical challenges remain in order for solid-state lighting to significantly displace the well-developed conventional lighting technologies. We review the potential of LED solid-state lighting to meet the long-term cost goals.

  20. LEDS Global Partnership in Action: Advancing Climate-Resilient Low Emission Development Around the World (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01

    Many countries around the globe are designing and implementing low emission development strategies (LEDS). These LEDS seek to achieve social, economic, and environmental development goals while reducing long-term greenhouse gas (GHG) emissions and increasing resiliency to climate change impacts. The LEDS Global Partnership (LEDS GP) harnesses the collective knowledge and resources of more than 120 countries and international donor and technical organizations to strengthen climate-resilient low emission development efforts around the world.

  1. LED MR16 Lamps

    Office of Energy Efficiency and Renewable Energy (EERE)

    The following CALiPER report provides detailed analysis of LED MR16 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Pending reports will offer analysis on performance attributes that are not captured by LM-79 testing. These reports are intended to educate the industry on market trends, potential issues, and important areas for improvement.

  2. LEDS | OpenEI Community

    Open Energy Info (EERE)

    LEDS Home Graham7781's picture Submitted by Graham7781(2017) Super contributor 16 November, 2012 - 11:23 LEDS the focus of Monday's 10 a.m. Town Hall Meeting LEDS Town Hall meeting...

  3. EA-319 Fortis Energy Marketing & Trading GP | Department of Energy

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

    Fortis Energy Marketing & Trading GP EA-319 Fortis Energy Marketing & Trading GP Order authorizing Fortis Energy Marketing & Trading GP to export electric energy to Canada EA-319 Fortis Energy Marketing & Trading GP (3.06 MB) More Documents & Publications EA-319-A Fortis Energy Marketing & Trading GP (BNP Paribas Energy Trading GP) EA-223-A CMS Marketing, Services and Trading Company EA-178-B Edison Mission Marketing & Trading, Inc

  4. LED Basics | Department of Energy

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

    SSL Basics » LED Basics LED Basics Unlike incandescent lamps, LEDs are not inherently white light sources. Instead, LEDs emit nearly monochromatic light, making them highly efficient for colored light applications such as traffic lights and exit signs. However, to be used as a general light source, white light is needed. White light can be achieved with LEDs in three ways: Phosphor conversion, in which a phosphor is used on or near the LED to convert the colored light to white light RGB

  5. Advanced Leds | Open Energy Information

    Open Energy Info (EERE)

    Place: Coventry, England, United Kingdom Zip: CV5 6SP Product: Advanced Leds develops LED technology for outdoor lighting, including street lighting applications. Coordinates:...

  6. LED Performance Under Tough Conditions

    Energy Savers [EERE]

    Three DOE Gateway applications show how LED luminaires respond to rigorous outdoor environments By JAmes BroDrick A lthough LED lighting has already made impressive inroads in ...

  7. GP IIb/IIIa Blockade During Peripheral Artery Interventions

    SciTech Connect (OSTI)

    Tepe, Gunnar Wiskirchen, Jakub; Pereira, Philippe; Claussen, Claus D.; Miller, Stephen; Duda, Stephan H.

    2008-01-15

    The activation of the platelet GP IIb/IIIa receptor is the final and common pathway in platelet aggregation. By blocking this receptor, platelet aggregation can be inhibited independently of the stimulus prompted the targeting of this receptor. Several years ago, three drugs have been approved for coronary artery indications. Since that time, there is increasing evidence that GP IIb/IIIa receptor blockade might have also an important role in peripheral arterial intervention. This article summarizes the action and differences of GP Ilb/IIIa receptor inhibitors and its possible indication in peripheral arteries.

  8. LEd:JCD

    Office of Legacy Management (LM)

    LEd:JCD TO- 54 k-sour R3scsrck Fouadatlon 0f$..&+0is$tlstituta of TecGJlow Tecmolocy Csilter 10 Zest 35th Stmet ', c!xk3go lo, I3.Umie Atteqtion: MC. R. c. Barrall Gentlemen: Reference is wada to (a) your appUcetio0 of 3awe~ q,' 1959, rrqlacst~alirpn~tonori~200gsr;ls~hi~4~ched oranlm, (b) our a-q.4 of Z'ebmazy 6, lYS9, ke<wthg eddi- tiona1 'L+lmrQdiEp ia 'Support of your applJcatloD, (c) ycxu.r telqr3a of Eqtember 29, 1959, reque5tlng reneval of ~cense sm-49 -vc+biTt cksnga. Since'va kaem

  9. Boston Power GP Batteries JV | Open Energy Information

    Open Energy Info (EERE)

    Taiwan-based JV that produces Sonata rechargeable Li-ion batteries for laptop computers. References: Boston Power & GP Batteries JV1 This article is a stub. You can help...

  10. DOE Announces Webinars on Maintenance Practices for LED Streetlights, LED

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

    Color Stability, and More | Department of Energy Maintenance Practices for LED Streetlights, LED Color Stability, and More DOE Announces Webinars on Maintenance Practices for LED Streetlights, LED Color Stability, and More April 10, 2014 - 9:13am Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce. Webinars are free; however, advanced registration is

  11. Simple Modular LED Cost Model

    Broader source: Energy.gov [DOE]

    The LED Cost Model, developed by the DOE Cost Modeling Working Group, provides a simplified method for analyzing the manufacturing costs of an LED package. The model focuses on the major cost...

  12. LED Performance Under Tough Conditions

    Broader source: Energy.gov [DOE]

    December 2015 LD+A magazine article entitled "LED Performance Under Tough Conditions" discussing three Dept of Energy GATEWAY applications that show how LED luminaires respond to rigorous outdoor environments.

  13. Employee-Led Safety Committees

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

    Employee-Led Safety Committees Presented to: 25 th National VPPPA Conference August 26, 2009 San Antonio, Texas Presented by: Jack Griffith HNF-421781 CHPRC0907-38 2 Employee-Led ...

  14. LED Lighting | Department of Energy

    Office of Environmental Management (EM)

    comparable or better light quality than other types of lighting. Check out the top 8 things you didn't know about LEDs to learn more. Energy Savings LED is a highly energy...

  15. Readiness Review Training- Member

    Broader source: Energy.gov [DOE]

    Slides used for November 10, 2010 Readiness Review Member Training at the Idaho National Laboratory. Course provides tools and tips to be an effective readiness review team member.

  16. LED Roundtable Reports | Department of Energy

    Energy Savers [EERE]

    LED Roundtable Reports LED Roundtable Reports PDF icon 2015 LED Core Technology Roundtable Report.pdf PDF icon 2015 LED Product Development and Manufacturing Roundtable Report.pdf...

  17. LED Green Power Inc | Open Energy Information

    Open Energy Info (EERE)

    LED Green Power Inc Jump to: navigation, search Name: LED Green Power Inc Place: Santa Cruz, California Zip: 95060 Product: LED fixture and cartridge manufacturer. References: LED...

  18. LED Roundtable Reports | Department of Energy

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

    LED Roundtable Reports LED Roundtable Reports PDF icon 2015 LED Core Technology Roundtable Report.pdf PDF icon 2015 LED Product Development and Manufacturing Roundtable Report.pdf ...

  19. LED Record Efficacy and Brightness

    Broader source: Energy.gov [DOE]

    Designed for general lighting applications such as street, industrial, and parking garage lighting, the Cree XLamp® power LED sets new records for LED brightness and efficacy, up to 85 lm/W at 350 mA. The XLamp utilizes Cree's performance breakthrough EZBright™ LED chip; both products include technology that was developed in part with R&D funding support from DOE.

  20. Using LEDs | Department of Energy

    Energy Savers [EERE]

    compact profile, superior optical control, energy efficiency, breakage resistance, reduced maintenance, and long life-LEDs are well suited to a variety of lighting applications. ...

  1. Demonstration of LED Street Lighting

    SciTech Connect (OSTI)

    Kinzey, B. R.; Royer, M. P.; Hadjian, M.; Kauffman, R.

    2013-06-01

    GATEWAY program and Municipal Solid-State Street Lighting Consortium report on a demonstration of LED street lighting in Kansas City, MO.

  2. Upgrading Troffer Luminaires to LED

    SciTech Connect (OSTI)

    none,

    2014-01-31

    Solid-state lighting technology fact sheet providing guidance on the various factors to consider when deciding on an LED upgrade for a fluorescent troffer system.

  3. LED Lighting | Department of Energy

    Office of Environmental Management (EM)

    of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least 75% less energy, and last 25 times longer, than incandescent lighting. ...

  4. GATEWAY Demonstrations: LED Street Lighting

    SciTech Connect (OSTI)

    Cook, Tyson; Shackelford, Jordan; Pang, Terrance Pang

    2008-12-01

    This report summarizes an assessment project conducted to study the performance of light emitting diode (LED) luminaires in a street lighting application in San Francisco, CA.

  5. Reporting LED Luminaire Product Performance

    SciTech Connect (OSTI)

    2008-12-01

    This brochure on LED product performance is an outcome of a joint DOE-NGLIA effort to assure and improve the quality of SSL products.

  6. LED Watch: How Safe Is the Light from LEDs?

    Energy Savers [EERE]

    It's important to note that there's about LED safety focus on what's known no difference between the type of vis- as "blue light," which is light in the violet ible radiant energy ...

  7. Metacapacitors for LED Lighting: Metacapacitors

    SciTech Connect (OSTI)

    2010-09-02

    ADEPT Project: The CUNY Energy Institute is developing less expensive, more efficient, smaller, and longer-lasting power converters for energy-efficient LED lights. LEDs produce light more efficiently than incandescent lights and last significantly longer than compact fluorescent bulbs, but they require more sophisticated power converter technology, which increases their cost. LEDs need more sophisticated converters because they require a different type of power (low voltage direct current, or DC) than what's generally supplied by power outlets. The CUNY Energy Institute is developing sophisticated power converters for LEDs that contain capacitors made from new, nanoscale materials. Capacitors are electrical components that are used to store energy. CUNY's unique capacitors are configured with advanced power circuits to more efficiently control and convert power to the LED lighting source. They also eliminate the need for large magnetic components, instead relying on networks of capacitors that can be easily printed on plastic substrate. CUNY's prototype LED power converter already meets DOE's 2020 projections for the energy efficiency of LED power converters.

  8. Interagency Energy Management Task Force Members | Department of Energy

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

    Interagency Energy Management Task Force Members Interagency Energy Management Task Force Members The Interagency Energy Management Task Force is led by the Federal Energy Management Program director. Members include energy and sustainability managers from federal agencies. Task Force Executive Director Dr. Timothy Unruh U.S. Department of Energy 202-586-5772 Task Force Members Organization Primary Contact Alternate Contact General Services Administration Mark Ewing Karren Curran National

  9. Maintenance Practices for LED Streetlights

    Office of Energy Efficiency and Renewable Energy (EERE)

    This April 14, 2014 webinar answered important questions about the maintenance and reliability of LED streetlights, and how to take these issues into account when planning and preparing for a...

  10. LED Lighting | Department of Energy

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

    focusing light in ways that are useful in homes and commercial settings. The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting...

  11. Functional characterization of Autographa californica multiple nucleopolyhedrovirus gp16 (ac130)

    SciTech Connect (OSTI)

    Yang, Ming; Huang, Cui; Qian, Duo-Duo; Li, Lu-Lin

    2014-09-15

    To investigate the function of Autographa californica multiple nucleopolyhedrovirus (AcMNPV) gp16, multiple gp16-knockout and repair mutants were constructed and characterized. No obvious difference in productivity of budded virus, DNA synthesis, late gene expression and morphogenesis was observed between gp16-knockout and repair viruses, but gp16 deletion resulted in six hours of lengthening in ST{sub 50} to the third instar Spodoptera exigua larvae in bioassays. GP16 was fractionated mainly in the light membrane fraction, by subcellular fractionation. A GP16-EGFP fusion protein was predominantly localized close around the nuclear membrane in infected cells, being coincident with formation of the vesicles associated with the nuclear membrane, which hosted nucleocapsids released from the nucleus. These data suggest that gp16 is not required for viral replication, but may be involved in membrane trafficking associated with the envelopment/de-envelopment of budded viruses when they cross over the nuclear membrane and pass through cytoplasm. - Highlights: • gp16 knockout and repair mutants of AcMNPV were constructed and characterized. • AcMNPV gp16 is not essential to virus replication. • Deletion of gp16 resulted in time lengthening to kill S. exigua larvae. • GP16 was localized close around the nuclear membrane of infected cells. • GP16 was fractionated in the light membrane fraction in subcellular fractionation.

  12. Demonstration Assessment of LED Roadway Lighting: Philadelphia...

    Office of Scientific and Technical Information (OSTI)

    LED Roadway Lighting: Philadelphia, PA Royer, Michael P.; Tuenge, Jason R.; Poplawski, Michael E. Roadway Lighting; Solid-state lighting; LED lighting; SSL; LED; GATEWAY Roadway...

  13. LED Frequently Asked Questions | Department of Energy

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

    Frequently Asked Questions LED Frequently Asked Questions EERE Solid-State Lighting LED Factsheet PDF icon ledbasics.pdf More Documents & Publications LED Frequently Asked ...

  14. Recessed LED Downlights | Department of Energy

    Energy Savers [EERE]

    Recessed LED Downlights Recessed LED Downlights A Dept of Energy Solid-State Lighting Program technology fact sheet on recessed LED downlights. PDF icon recesseddownlight.pdf More ...

  15. Members | Department of Energy

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

    U.S. map showing states with Consortium members highlighted in green. Join the Consortium Consortium Participant List (PDF) Consortium Participant List (Excel Spreadsheet) ...

  16. Members | Department of Energy

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

    Better Buildings Residential Network members come from all sectors of the energy efficiency industry to leverage one another's experiences and expertise in an effort to accelerate ...

  17. NNMCAB Member Update

    Broader source: Energy.gov [DOE]

    At the September 24, 2014 Board meeting Patti Jones LANL, Provided the Members with a Status Update to the TA-21 Demolition and Storm Water Season Rain Events.

  18. Multicolor, High Efficiency, Nanotextured LEDs

    SciTech Connect (OSTI)

    Jung Han; Arto Nurmikko

    2011-09-30

    We report on research results in this project which synergize advanced material science approaches with fundamental optical physics concepts pertaining to light-matter interaction, with the goal of solving seminal problems for the development of very high performance light emitting diodes (LEDs) in the blue and green for Solid State Lighting applications. Accomplishments in the duration of the contract period include (i) heteroepitaxy of nitrogen-polar LEDs on sapphire, (ii) heteroepitaxy of semipolar (11{bar 2}2) green LEDs on sapphire, (iii) synthesis of quantum-dot loaded nanoporous GaN that emits white light without phosphor conversion, (iv) demonstration of the highest quality semipolar (11{bar 2}2) GaN on sapphire using orientation-controlled epitaxy, (v) synthesis of nanoscale GaN and InGaN medium, and (vi) development of a novel liftoff process for manufacturing GaN thin-film vertical LEDs. The body of results is presented in this report shows how a solid foundation has been laid, with several noticeable accomplishments, for innovative research, consistent with the stated milestones.

  19. LED lamp power management system and method

    DOE Patents [OSTI]

    Gaines, James; Clauberg, Bernd; Van Erp, Josephus A. M.

    2013-03-19

    An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (P.sub.loss) exceeds an LED lamp electronics power loss limit (P.sub.lim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.

  20. LED lamp color control system and method

    SciTech Connect (OSTI)

    Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.

    2013-02-05

    An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.

  1. Collapsable seal member

    DOE Patents [OSTI]

    Sherrell, D.L.

    1983-12-08

    A hollow, collapsable seal member normally disposed in a natural expanded state offering fail-safe pressure sealing against a seating surface and adapted to be evacuated by a vacuum force for collapsing the seal member to disengage the same from said seating surface.

  2. Collapsable seal member

    DOE Patents [OSTI]

    Sherrell, Dennis L.

    1990-01-01

    A hollow, collapsable seal member normally disposed in a natural expanded state offering fail-safe pressure sealing against a seating surface and adapted to be evacuated by a vacuum force for collapsing the seal member to disengage the same from said seating surface.

  3. Network Member Helps City Climb CoolCalifornia Challenge Leaderboard |

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

    Department of Energy Network Member Helps City Climb CoolCalifornia Challenge Leaderboard Network Member Helps City Climb CoolCalifornia Challenge Leaderboard Photo of the back of a man wearing a T-shirt with the CHERP acronymn -- Community Home Energy Retrofit Project. The City of Claremont, California, climbed the CoolCalifornia Challenge leaderboard following an email campaign led by Residential Network member Community Home Energy Retrofit Project (CHERP). Claremont was in seventh place,

  4. Hydraulic Institute Member Benefits

    Broader source: Energy.gov [DOE]

    As the developer of the universally acclaimed ANSI/HI Pump Standards, a key reference for pump knowledge and end-user specifications, the Hydraulic  nstitute (HI) provides its members with timely...

  5. LED MR16 Lamps | Department of Energy

    Energy Savers [EERE]

    LED MR16 Lamps LED MR16 Lamps A U.S. DOE Solid-State Lighting Program technology fact sheet on LED MR16 lamps. PDF icon ledmr16-lamps.pdf More Documents & Publications Report ...

  6. LedEngin Inc | Open Energy Information

    Open Energy Info (EERE)

    LedEngin Inc Jump to: navigation, search Name: LedEngin, Inc Place: Santa Clara, California Zip: 95054 Product: Developer of Light Emitting Diode (LED) technology for medical and...

  7. LED North America - Energy Innovation Portal

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

    Understanding SSL » LED Basics LED Basics Unlike incandescent lamps, LEDs are not inherently white light sources. Instead, LEDs emit nearly monochromatic light, making them highly efficient for colored light applications such as traffic lights and exit signs. However, to be used as a general light source, white light is needed. White light can be achieved with LEDs in three ways: Phosphor conversion, in which a phosphor is used on or near the LED to convert the colored light to white light RGB

  8. Federally Led Accident Investigation Reports | Department of...

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

    Federally Led Accident Investigation Reports Federally Led Accident Investigation Reports Includes Pre-March 2011 Type A Reports June 1, 1999 Type A Accident Investigation Board...

  9. LED Outdoor Area Lighting Fact Sheet

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

    ... Light distribution and glare LED luminaires use different optics than MH or HPS lamps ... illuminance are possible with LEDs and close-coupled optics, compared to HID luminaires. ...

  10. Philadelphia International Airport Apron Lighting: LED System...

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

    Philadelphia International Airport Apron Lighting: LED System Performance in a Trial Installation Philadelphia International Airport Apron Lighting: LED System Performance in a ...

  11. LED Color Characteristics | Department of Energy

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

    Color Characteristics LED Color Characteristics Reviews the fundamentals regarding light and color, summarizing the most important color issues related to white-light LED systems. (6 pages, April 2016) led-color-characteristics-factsheet.pdf (1.77 MB) More Documents & Publications Evaluating Color Rendition Using IES TM-30-15 LED Color Characteristics presentation slides: UNDERSTANDING AND APPLYING TM-30-15

  12. LED Essentials - Technology, Applications, Advantages, Disadvantages |

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

    Department of Energy Information Resources » Webcasts » LED Essentials - Technology, Applications, Advantages, Disadvantages LED Essentials - Technology, Applications, Advantages, Disadvantages On October 11, 2007, Kevin Dowling, VP of Innovation for Philips Solid-State Lighting Solutions, presented a broad introduction to LED technology, and discussed the technology status, advantages and disadvantages, current applications, future potential, and evolving path of LED technology from

  13. LED Lighting Facts | Department of Energy

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

    Research & Development » Technology Application R&D » LED Lighting Facts LED Lighting Facts LED lighting facts - A Program of the U.S. DOE DOE's LED Lighting Facts® program showcases LED products for general illumination from manufacturers who commit to testing products and reporting performance results according to industry standards. For lighting buyers, designers, and energy efficiency programs, the program provides information essential to evaluating SSL products. Central to the

  14. LED Frequently Asked Questions | Department of Energy

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

    Frequently Asked Questions LED Frequently Asked Questions This document provides answers to LED frequently asked questions for plant-wide improvements, such as "Are LEDs ready for general lighting?" LED Frequently Asked Questions (May 2011) (344.41 KB) More Documents & Publications LED Frequently Asked Questions Lighting Designer Roundtable on Solid-State Lighting SSL R&D Multi-Year Program Plan

  15. LED Lighting Facts | Department of Energy

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

    Research & Development » Technology Application R&D » LED Lighting Facts LED Lighting Facts LED lighting facts - A Program of the U.S. DOE DOE's LED Lighting Facts® program showcases LED products for general illumination from manufacturers who commit to testing products and reporting performance results according to industry standards. For lighting buyers, designers, and energy efficiency programs, the program provides information essential to evaluating SSL products. Central to the

  16. LED Lighting Forecast | Department of Energy

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

    Publications » Market Studies » LED Lighting Forecast LED Lighting Forecast The DOE report Energy Savings Forecast of Solid-State Lighting in General Illumination Applications estimates the energy savings of LED white-light sources over the analysis period of 2013 to 2030. With declining costs and improving performance, LED products have been seeing increased adoption for general illumination applications. This is a positive development in terms of energy consumption, as LEDs use significantly

  17. ORSSAB Members | Department of Energy

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

    Belinda Price Chair Read Bio Alfreda Cook Vice Chair Read Bio David Hemelright Secretary Read Bio Leon Baker Member Read Bio Richard Burroughs Member Read Bio ...

  18. Member Benefits | Department of Energy

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

    resources, and proven solutions shared by members Opportunities to be featured in media, case studies, and lessons learned materials Voluntary member initiatives that address...

  19. Structural Analysis of a Highly Glycosylated and Unliganded gp120-Based Antigen Using Mass Spectrometry

    SciTech Connect (OSTI)

    L Wang; Y Qin; S Ilchenko; J Bohon; W Shi; M Cho; K Takamoto; M Chance

    2011-12-31

    Structural characterization of the HIV-1 envelope protein gp120 is very important for providing an understanding of the protein's immunogenicity and its binding to cell receptors. So far, the crystallographic structure of gp120 with an intact V3 loop (in the absence of a CD4 coreceptor or antibody) has not been determined. The third variable region (V3) of the gp120 is immunodominant and contains glycosylation signatures that are essential for coreceptor binding and entry of the virus into T-cells. In this study, we characterized the structure of the outer domain of gp120 with an intact V3 loop (gp120-OD8) purified from Drosophila S2 cells utilizing mass spectrometry-based approaches. We mapped the glycosylation sites and calculated the glycosylation occupancy of gp120-OD8; 11 sites from 15 glycosylation motifs were determined as having high-mannose or hybrid glycosylation structures. The specific glycan moieties of nine glycosylation sites from eight unique glycopeptides were determined by a combination of ECD and CID MS approaches. Hydroxyl radical-mediated protein footprinting coupled with mass spectrometry analysis was employed to provide detailed information about protein structure of gp120-OD8 by directly identifying accessible and hydroxyl radical-reactive side chain residues. Comparison of gp120-OD8 experimental footprinting data with a homology model derived from the ligated CD4-gp120-OD8 crystal structure revealed a flexible V3 loop structure in which the V3 tip may provide contacts with the rest of the protein while residues in the V3 base remain solvent accessible. In addition, the data illustrate interactions between specific sugar moieties and amino acid side chains potentially important to the gp120-OD8 structure.

  20. CASL Industry Council Members:

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

    CASL Industry Council Members: We are looking forward to hosting you at the upcoming CASL Industry Council Meeting on Tuesday, April 12, 2016 through Wednesday, April 13, 2016 at the following location: ALOFT Greenville Downtown Converge Conference Room 5 North Laurens Street Greenville, SC 29601 864-297-6100 Meeting Contact: Lorie Fox (865) 548-5178 Lodging: ALOFT Greenville Downtown: http://www.aloftgreenvilledowntown.com/ Hotel Information * Check-in time: 4 PM * Checkout time: 12 PM * Fast

  1. Advisory Board Members

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

    Call for Proposals Submit Proposals Research Subject Areas Types of Proposals Funding for Projects Evaluation and Selection Acceptance and Rejection Deadlines Events Partnerships NSEC » CSES » Advisory Boards Advisory Board Members High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. External Richard Aster New Mexico Tech George Fuller UC San Diego Brian McPherson University of Utah Mike Liemohn University of Michigan

  2. SemiLEDs | Open Energy Information

    Open Energy Info (EERE)

    SemiLEDs Place: Boise, Idaho Zip: 83702 Product: US-based LED chip maker with Asia manufacturing operations. Coordinates: 43.60698, -116.193409 Show Map Loading map......

  3. LEDs for Street Lighting—Here Today

    SciTech Connect (OSTI)

    2013-11-29

    Fact sheet that provides a brief overview of the viability of LED street lighting in municipalities and highlights case studies of two cities—Los Angeles and Seattle—that have invested in LED street lighting.

  4. Decisions that led to Y-12

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

    Decisions that led to Y-12 Last week we saw the political and organizational changes that led up to the Manhattan Project being created on August 13, 1942. The S-1 Executive ...

  5. Final decisions that led to Y-12

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

    decisions that led to Y-12 As we have seen earlier in this series, Ernest O. Lawrence and ... By late 1942, progress on the reactor technology being led by Enrico Fermi at the ...

  6. Updating the LED Life Cycle Assessment

    Energy Savers [EERE]

    Part 2: LED Manufacturing and Performance 7 Goal of the New Study Review new literature on the life- cycle assessment of LED products. Determine if newer A-19 products...

  7. LED R&D | Department of Energy

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

    DOE-funded LED R&D projects tackle the science and technology challenges that stand in the way of achieving SSL Program targets for LED efficacy, performance, and cost. All project ...

  8. LED Solutions for the Dark Hours

    Energy Savers [EERE]

    technologies 5 LEDs for Street and Roadway Lighting Portland, OR Philadelphia, PA New York, NY Kansas City, MO 6 Boston Las Vegas Seattle Number of LED Replacements to Date (4...

  9. LED Lighting Basics | Department of Energy

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

    LED Lighting Basics LED Lighting Basics August 16, 2013 - 10:07am Addthis Light-emitting diodes (LEDs) efficiently produce light in a fundamentally different way than any legacy or traditional light source. LEDs are compound semiconductor devices that produce light when an appropriate electrical current is applied. Applying electrical current causes electrons to flow from one material in the structure to another and this in turn causes a series of complex interactions at an atomic level that

  10. LED Lighting in a Performing Arts Center

    SciTech Connect (OSTI)

    Wilkerson, A. M.; Abell, T. C.; T., E. Perrin

    2015-07-31

    GATEWAY demonstration report of LED wall washer retrofit lighting at the University of Maryland Clarice Smith Performing Arts Center.

  11. LED Watch: The Outlook for OLEDs

    Broader source: Energy.gov [DOE]

    December 2014 LED Watch: The Outlook for OLEDs James Brodrick, U.S. Department of Energy LD+A Magazine

  12. LED Lighting: Just the Facts, Please!

    Broader source: Energy.gov [DOE]

    Now there's another arsenal in the toolbox to help consumers find LED lights they can trust: the Lighting Facts™ label.

  13. Have You Used LED Light Strings?

    Broader source: Energy.gov [DOE]

    This week, you read about LED holiday light strings, which can use 90% less energy than regular incandescent light strings.

  14. LED Color Characteristics | Department of Energy

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

    DOE EERE Building Technologies Program Solid-State Lighting fact sheet led-color-characteristics-factsheet.pdf (804.38 KB) More Documents & Publications LED Color Characteristics Evaluating Color Rendition Using IES TM-30-15 Report 23: Photometric Testing of White Tunable LED Luminaires

  15. LED Market Adoption: Status and Trends

    Energy Savers [EERE]

    (lmW) 67 60 CCT (K) 3000 3500 L 70 (hours) 28,000 36,000 Price (unit) 23 30 18 LED Linear Fixtures 19 T12 26% T8 67% T5 7% LED Lamp <1% LED Luminaire <1% 2012 T12 17% T8 72%...

  16. Cryogenic support member

    DOE Patents [OSTI]

    Niemann, Ralph C.; Gonczy, John D.; Nicol, Thomas H.

    1987-01-01

    A cryogenic support member is comprised of a non-metallic rod having a depression in at least one end and a metallic end connection assembled to the rod. The metallic end connection comprises a metallic plug which conforms to the shape and is disposed in the depression and a metallic sleeve is disposed over the rod and plug. The plug and the sleeve are shrink-fitted to the depression in the rod to form a connection good in compression, tension and bending.

  17. Dual LED/incandescent security fixture

    DOE Patents [OSTI]

    Gauna, Kevin Wayne

    2005-06-21

    A dual LED and incandescent security lighting system uses a hybrid approach to LED illumination. It combines an ambient LED illuminator with a standard incandescent lamp on a motion control sensor. The LED illuminator will activate with the onset of darkness (daylight control) and typically remain on during the course of the night ("always on"). The LED illumination, typically amber, is sufficient to provide low to moderate level lighting coverage to the wall and ground area adjacent to and under the fixture. The incandescent lamp is integrated with a motion control circuit and sensor. When movement in the field of view is detected (after darkness), the incandescent lamp is switched on, providing an increased level of illumination to the area. Instead of an "always on" LED illuminator, the LEDs may also be switched off when the incandescent lamp is switched on.

  18. A Practical Primer to LED Technology | Department of Energy

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

    A Practical Primer to LED Technology A Practical Primer to LED Technology PDF icon A Practical Primer to LED Technology More Documents & Publications LED LUMINAIRE LIFETIME: ...

  19. TEC Working Group Member Organizations Representatives | Department...

    Office of Environmental Management (EM)

    Member Organizations Representatives TEC Working Group Member Organizations Representatives PDF icon TEC MEMBER ORGANIZATION REPRESENTATIVES TOPIC GROUP PARTICIPATION February 2006...

  20. Melt containment member

    DOE Patents [OSTI]

    Rieken, Joel R.; Heidloff, Andrew J.

    2014-09-09

    A tubular melt containment member for transient containment of molten metals and alloys, especially reactive metals and alloys, includes a melt-contacting layer or region that comprises an oxygen-deficient rare earth oxide material that is less reactive as compared to the counterpart stoichiometric rare earth oxide. The oxygen-deficient (sub-stoichiometric) rare earth oxide can comprise oxygen-deficient yttria represented by Y.sub.2O.sub.3-x wherein x is from 0.01 to 0.1. Use of the oxygen-deficient rare earth oxide as the melt-contacting layer or region material reduces reaction with the melt for a given melt temperature and melt contact time.

  1. System Reliability for LED-Based Products

    SciTech Connect (OSTI)

    Davis, J Lynn; Mills, Karmann; Lamvik, Michael; Yaga, Robert; Shepherd, Sarah D; Bittle, James; Baldasaro, Nick; Solano, Eric; Bobashev, Georgiy; Johnson, Cortina; Evans, Amy

    2014-04-07

    Results from accelerated life tests (ALT) on mass-produced commercially available 6” downlights are reported along with results from commercial LEDs. The luminaires capture many of the design features found in modern luminaires. In general, a systems perspective is required to understand the reliability of these devices since LED failure is rare. In contrast, components such as drivers, lenses, and reflector are more likely to impact luminaire reliability than LEDs.

  2. LED PAR38 Lamps | Department of Energy

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

    Research & Development » Technology Application R&D » CALiPER Testing » Application Reports » LED PAR38 Lamps LED PAR38 Lamps The following CALiPER reports provide a detailed investigation of LED PAR38 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Further analysis is provided on flicker, dimming, and power quality characteristics; stress testing; lumen and chromaticity maintenance; and chromaticity

  3. LEDS Events Calendar | Open Energy Information

    Open Energy Info (EERE)

    Page Edit History LEDS Events Calendar (Redirected from CLEAN Calendar) Jump to: navigation, search Home | About | Inventory | Partnerships | Capacity Building | Webinars | Reports...

  4. LEDS Events Calendar | Open Energy Information

    Open Energy Info (EERE)

    Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History LEDS Events Calendar Jump to: navigation, search Home | About | Inventory | Partnerships |...

  5. Category:LEDS Toolkit | Open Energy Information

    Open Energy Info (EERE)

    meant to support the creation and implementation of a Low Emission Development Strategy. Pages in category "LEDS Toolkit" The following 14 pages are in this category, out of...

  6. Using LEDs to Their Best Advantage

    SciTech Connect (OSTI)

    none,

    2012-01-01

    Solid-state lighting program technology fact sheet that explores the unique attributes of LEDs, which may make them the right choice for some applications.

  7. Demonstration Assessment of LED Parking Structure Lighting

    SciTech Connect (OSTI)

    Kinzey, B. R.; Myer, M. A.

    2013-03-01

    GATEWAY program report on a demonstration of LED parking structure lighting at the U.S. Dept. of Labor headquarters in Washington, DC.

  8. LED Lighting Facts Snapshot: Indoor Ambient Lighting

    SciTech Connect (OSTI)

    2013-04-01

    LED Lighting Facts Snapshot reports reveal how today's products really perform, drawing on analysis of verified performance data from the program's online product list.

  9. Municipal Consortium LED Street Lighting Workshop Presentations...

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

    Workshop Agenda DOE Municipal Solid-State Street Lighting Consortium James Brodrick, U.S. Department of Energy Boston's LED Street Lighting Initiative Joanne Massaro, Glenn Cooper, ...

  10. Commercial Lighting and LED Lighting Incentives | Department...

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

    Schools Institutional Savings Category Lighting Lighting ControlsSensors Other EE LED Lighting Maximum Rebate Up to 100% of cost; incentives that exceed 5,000 should be...

  11. LED Directional Lamps | Department of Energy

    Energy Savers [EERE]

    Directional Lamps LED Directional Lamps BTP EERE Solid-State Lighting Program PDF icon leddirectionallamps.pdf More Documents & Publications Energy Savings Estimates of Light ...

  12. LED Replacements for Linear Fluorescent Lamps Webcast

    Broader source: Energy.gov [DOE]

    In this June 20, 2011 webcast on LED products marketed as replacements for linear fluorescent lamps, Jason Tuenge of the Pacific Northwest National Laboratory (PNNL) discussed current Lighting...

  13. Municipal Consortium LED Street Lighting Workshop Presentations...

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

    City of Los Angeles Bureau of Street Lighting San Jose's "Smart" LED Streetlights: Controlled Amy Olay, City of San Jose Adaptive Lighting Controls Panel David Bueno, ...

  14. Dimming LEDs: What You Need to Know

    Broader source: Energy.gov [DOE]

    This December 10, 2012 webcast presented information on the challenges and opportunities facing users trying to dim LED light sources today, reviewing the major types of deployed dimming...

  15. A Practical Primer to LED Technology

    Energy Savers [EERE]

    ssl.energy.gov 2011 LED Transformations, LLC 60 Acknowledgements Support for the development and presentation of this educational seminar was provided by the US Department of...

  16. Municipal Consortium LED Street Lighting Workshop Presentations...

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

    Workshop Agenda ONCOR LED Streetlight Pilot & Technical Evaluation Update Michael Navarro, ONCOR Reading, Understanding, and Applying the LM-80 Standard Chad Stalker, Philips ...

  17. Successful Selection of LED Streetlight Luminaires: Optimizing...

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

    This March 6, 2013 webcast reviewed the factors involved in successful selection of LED streetlight luminaires. Presenters Eric Haugaard of Cree Lighting and Chad Stalker of ...

  18. Solid State Lighting LED Manufacturing Roundtable Summary

    SciTech Connect (OSTI)

    none,

    2010-03-31

    Summary of a meeting of LED experts to develop proposed priority tasks for the Manufacturing R&D initiative, including task descriptions, discussion points, recommendations, and presentation highlights.

  19. Solving the 'Green Gap' in LED Technology

    Broader source: Energy.gov [DOE]

    One long-standing high-priority research area for DOE is to increase the efficiency of deep green LEDs. Although most products today use phosphor conversion (PC) to produce white light from a blue LED, having a good green source could lead to color-mixed white sources that would avoid the losses associated with the PC approach.

  20. Financing Guidance for LED Street Lighting Programs

    Broader source: Energy.gov [DOE]

    Financing an LED street lighting replacement program can present a hurdle for many system owners, even if the planned transition offers very favorable economics. Replacing the existing system requires a significant budget, particularly as the scope of the program increases. Cities such as Los Angeles and Seattle have invested many millions of dollars into their (very successful) LED street lighting replacement programs.

  1. Today LED Holiday Lights, Tomorrow the World?

    SciTech Connect (OSTI)

    Gordon, Kelly L.

    2004-12-20

    This article for The APEM Advantage, the quarterly newsletter of the Association of Professional Energy Managers (APEM) describes the recent increase in the popularity of light emitting diode (LED) lighting and compares LED light output with that of incandescent and compact fluorescent lighting.

  2. 100 LPW 800 Lm Warm White LED

    SciTech Connect (OSTI)

    Sun, Decai

    2010-10-31

    An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramica and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package

  3. High Performance Green LEDs by Homoepitaxial

    SciTech Connect (OSTI)

    Wetzel, Christian; Schubert, E Fred

    2009-11-22

    This work's objective was the development of processes to double or triple the light output power from green and deep green (525 - 555 nm) AlGaInN light emitting diode (LED) dies within 3 years in reference to the Lumileds Luxeon II. The project paid particular effort to all aspects of the internal generation efficiency of light. LEDs in this spectral region show the highest potential for significant performance boosts and enable the realization of phosphor-free white LEDs comprised by red-green-blue LED modules. Such modules will perform at and outperform the efficacy target projections for white-light LED systems in the Department of Energy's accelerated roadmap of the SSL initiative.

  4. High Power UV LED Industrial Curing Systems

    SciTech Connect (OSTI)

    Karlicek, Robert, F., Jr; Sargent, Robert

    2012-05-14

    UV curing is a green technology that is largely underutilized because UV radiation sources like Hg Lamps are unreliable and difficult to use. High Power UV LEDs are now efficient enough to replace Hg Lamps, and offer significantly improved performance relative to Hg Lamps. In this study, a modular, scalable high power UV LED curing system was designed and tested, performing well in industrial coating evaluations. In order to achieve mechanical form factors similar to commercial Hg Lamp systems, a new patent pending design was employed enabling high irradiance at long working distances. While high power UV LEDs are currently only available at longer UVA wavelengths, rapid progress on UVC LEDs and the development of new formulations designed specifically for use with UV LED sources will converge to drive more rapid adoption of UV curing technology. An assessment of the environmental impact of replacing Hg Lamp systems with UV LED systems was performed. Since UV curing is used in only a small portion of the industrial printing, painting and coating markets, the ease of use of UV LED systems should increase the use of UV curing technology. Even a small penetration of the significant number of industrial applications still using oven curing and drying will lead to significant reductions in energy consumption and reductions in the emission of green house gases and solvent emissions.

  5. Environmental Management Advisory Board Members

    Broader source: Energy.gov [DOE]

    EMAB membership reflects a diversity of views, demographics, expertise, and professional and academic experience. The following members comprise the current Board:

  6. Save Money with LED Holiday Light Strings

    Broader source: Energy.gov [DOE]

    LED (or light emitting diode) light strings can use 90% less energy than regular incandescent light strings. They also last about ten times longer, are cooler than incandescents (reducing fire hazards), and are more durable.

  7. SunLed Technologies | Open Energy Information

    Open Energy Info (EERE)

    Product: Hyderabad-based end-to-end energy efficient lighting solution provider and ESCO focused on LEDs and solar power. Coordinates: 17.6726, 77.5971 Show Map Loading...

  8. LEDs Ready for Takeoff at Louisiana Airport

    Broader source: Energy.gov [DOE]

    About 250 lights along the busy taxiway at Hammond Northshore Regional Airport are being replaced with light-emitting diodes (LEDs) with funds from an Energy Efficiency and Conservation Block Grant (EECBG) from the U.S. Department of Energy.

  9. LEDS Toolkit and Framework | Open Energy Information

    Open Energy Info (EERE)

    User Interface: Website, Desktop Application Website: en.openei.orgappsLEDS Cost: Free UN Region: Central Asia, Eastern Asia, South-Eastern Asia, "Pacific" is not in the list...

  10. Text-Alternative Version LED Lighting Forecast

    Office of Energy Efficiency and Renewable Energy (EERE)

    The DOE report Energy Savings Forecast of Solid-State Lighting in General Illumination Applications estimates the energy savings of LED white-light sources over the analysis period of 2013 to 2030....

  11. LED Outdoor Area Lighting Fact Sheet

    SciTech Connect (OSTI)

    2008-06-01

    This fact sheet reviews the major design and specification concerns for outdoor area lighting, and discusses the potential for LED luminaires to save energy while providing high quality lighting for outdoor areas.

  12. LED Roadway Lighting | Department of Energy

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

    Roadway Lighting LED Roadway Lighting PDF icon I-35 Bridge Report, Phase II PDF icon I-35 Bridge Report, Phase II Brief PDF icon I-35 Bridge Report, Phase I More Documents & ...

  13. LED Holiday Lights: Festive, Safe, and Efficient!

    Broader source: Energy.gov [DOE]

    Ed. Note cross posted from the Energy Savers Blog. LED light strings may cost a little more up front, but they'll save money in the long run and probably last longer too.

  14. DOE Hosts LED Industry Standards Workshop

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy hosted an LED Industry Standards Workshop on March 1, 2006 in Washington, D.C. The Workshop provided a forum to encourage greater cooperation and coordination among...

  15. Testimonials - Partnerships in LED Lighting - Philips Lumileds

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

    Lighting, LLC | Department of Energy LED Lighting - Philips Lumileds Lighting, LLC Testimonials - Partnerships in LED Lighting - Philips Lumileds Lighting, LLC Addthis Text Version The words "Office of Energy Efficiency & Renewable Energy, U.S. Department of Energy, EERE Partnership Testimonials," appear on the screen, followed by "Sunil Thomas, General Manager of San Jose Manufacturing Site, Philips Lumileds Lighting, LLC" and footage of a man sitting in a showcase

  16. Text-Alternative Version: Evaluating LED Street Lighting Solutions...

    Energy Savers [EERE]

    Evaluating LED Street Lighting Solutions Text-Alternative Version: Evaluating LED Street Lighting Solutions Below is the text-alternative version of the Evaluating LED Street ...

  17. Report 23: Photometric Testing of White Tunable LED Luminaires...

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

    Report 23: Photometric Testing of White Tunable LED Luminaires Report 23: Photometric Testing of White Tunable LED Luminaires PDF icon caliper23white-tunable-led-luminaires.pdf ...

  18. SPECIFYING LED COLOR-TUNABLE PRODUCTS | Department of Energy

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

    SPECIFYING LED COLOR-TUNABLE PRODUCTS SPECIFYING LED COLOR-TUNABLE PRODUCTS Specifying LED color-tunable luminaires is dependent on being able to make accurate comparisons between ...

  19. UNDERSTANDING LED COLOR-TUNABLE PRODUCTS | Department of Energy

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

    UNDERSTANDING LED COLOR-TUNABLE PRODUCTS UNDERSTANDING LED COLOR-TUNABLE PRODUCTS LED luminaires with the ability to deliver varying light color have been on the architectural ...

  20. LED Product Development and Manufacturing R&D Roundtable Summary...

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

    LED Product Development and Manufacturing R&D Roundtable Summary LED Product Development and Manufacturing R&D Roundtable Summary PDF icon LED Product Dev and Mfg Roundtable ...

  1. Report 23: Photometric Testing of White Tunable LED Luminaires...

    Energy Savers [EERE]

    3: Photometric Testing of White Tunable LED Luminaires Report 23: Photometric Testing of White Tunable LED Luminaires PDF icon caliper23white-tunable-led-luminaires.pdf More ...

  2. Getting Ready for LEDs: LED Lighting Video Series Explains the Basics |

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

    Department of Energy Getting Ready for LEDs: LED Lighting Video Series Explains the Basics Getting Ready for LEDs: LED Lighting Video Series Explains the Basics November 26, 2012 - 3:09pm Addthis Part 1 of the ElectricTV.net video series. Part 2 of the ElectricTV.net video series. Roland Risser Roland Risser Deputy Assistant Secretary for Renewable Power (Acting) How can I participate? Learn more about the advantages and accessiblity of LED lighting from this series of videos. If you haven't

  3. It's 2015: Should All Your Sockets be Filled with LEDs?

    Energy Savers [EERE]

    - mid-power LEDs on PCb used in 2x4 troffers 4 LED Modules and Light Engines GE Infusion Philips Fortimo Osram PrevaLED 5 LEDs: A New Light Source for Everything * Outdoor...

  4. Pittsburgh LED Street Lighting Research Project Performance Criteria

    Broader source: Energy.gov [DOE]

    A Pittsburgh LED Street Lighting Research Project document on Technical and Aesthetic Performance for Business District LED Lighting.

  5. Memorandum of Decision: Withdrawal of LED Lighting Waiver | Department...

    Office of Environmental Management (EM)

    LED Lighting Waiver Memorandum of Decision: Withdrawal of LED Lighting Waiver novemberdecisionwithdraw More Documents & Publications Nationwide Nonavailability Waiver: November...

  6. LED Color-Tunable Products | Department of Energy

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

    Research & Development » Technology Application R&D » CALiPER Testing » Application Reports » LED Color-Tunable Products LED Color-Tunable Products UNDERSTANDING, LED Color-Tunable Products SPECIFYING, LED Color-Tunable Products CONTROLLING, LED Color-Tunable Products TESTING, LED Color-Tunable Products Color-tunable LED luminaires are a nascent and growing product category. Beyond the inherent energy efficiency of LEDs, these luminaires offer other potential benefits including

  7. Environmental Management Advisory Board Members | Department...

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

    EMAB Board Member Read Bio David W. Swindle, Jr. EMAB Board Member Read Bio Robert J. Thompson EMAB Board Member Read Bio Lenn Vincent EMAB Board Member Read Bio

  8. LED Lighting in a Performing Arts Building

    SciTech Connect (OSTI)

    Miller, N. J.; Kaye, S. M.; Coleman, P. M.; Wilkerson, A. M.; Perrin, T. E.; Sullivan, G. P.

    2014-07-31

    At the University of Florida in Gainesville, the DOE Solid-State Lighting GATEWAY program evaluated LED architectural and theatrical lighting in four academic/performance-related spaces within the Nadine McGuire Theatre + Dance Pavilion. Due to a wise choice of products and luminaire light distributions, the change brought significant quality improvements including improved controllability and color.

  9. LED structure with enhanced mirror reflectivity

    DOE Patents [OSTI]

    Bergmann, Michael; Donofrio, Matthew; Heikman, Sten; Schneider, Kevin S; Haberern, Kevin W; Edmond, John A

    2014-04-01

    Embodiments of the present invention are generally related to LED chips having improved overall emission by reducing the light-absorbing effects of barrier layers adjacent mirror contacts. In one embodiment, a LED chip comprises one or more LEDs, with each LED having an active region, a first contact under the active region having a highly reflective mirror, and a barrier layer adjacent the mirror. The barrier layer is smaller than the mirror such that it does not extend beyond the periphery of the mirror. In another possible embodiment, an insulator is further provided, with the insulator adjacent the barrier layer and adjacent portions of the mirror not contacted by the active region or by the barrier layer. In yet another embodiment, a second contact is provided on the active region. In a further embodiment, the barrier layer is smaller than the mirror such that the periphery of the mirror is at least 40% free of the barrier layer, and the second contact is below the first contact and accessible from the bottom of the chip.

  10. Members

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

    on numerous other boards, policy and government panels. ... from solid oxide fuel cells, clean and efficient ... a major designer of coal, nuclear and other power plants. ...

  11. Low-Cost Illumination-Grade LEDs

    SciTech Connect (OSTI)

    Epler, John

    2013-08-31

    Solid State Lighting is a cost-effective, energy-conserving technology serving a rapidly expand- ing multi-billion dollar market. This program was designed to accelerate this lighting revolution by reducing the manufacturing cost of Illumination-Grade LEDs. The technical strategy was to investigate growth substrate alternatives to standard planar sapphire, select the most effective and compatible option, and demonstrate a significant increase in Lumen/$ with a marketable LED. The most obvious alternate substrate, silicon, was extensively studied in the first two years of the program. The superior thermal and mechanical properties of Si were expected to improve wavelength uniformity and hence color yield in the manufacture of high-power illumination- grade LEDs. However, improvements in efficiency and epitaxy uniformity on standard c-plane sapphire diminished the advantages of switching to Si. Furthermore, the cost of sapphire decreased significantly and the cost of processing Si devices using our thin film process was higher than expected. We concluded that GaN on Si was a viable technology but not a practical option for Philips Lumileds. Therefore in 2012 and 2013, we sought and received amendments which broadened the scope to include other substrates and extended the time of execution. Proprietary engineered substrates, off-axis (non-c-plane) sapphire, and c-plane patterned sapphire substrates (PSS) were all investigated in the final 18 months of this program. Excellent epitaxy quality was achieved on all three candidates; however we eliminated engineered substrates and non-c-plane sapphire because of their higher combined cost of substrate, device fabrication and packaging. Ultimately, by fabricating a flip-chip (FC) LED based upon c-plane PSS we attained a 42% reduction in LED manufacturing cost relative to our LUXEON Rebel product (Q1-2012). Combined with a flux gain from 85 to 102 Lm, the LUXEON Q delivered a 210% increase in Lm/$ over this time period. The

  12. Sustainable LED Fluorescent Light Replacement Technology

    SciTech Connect (OSTI)

    2011-06-30

    Ilumisys and the National Center for Manufacturing Sciences (NCMS) partnered on a three-year project awarded by the United States (U.S.) Department of Energy (DOE), to quantify the impacts of LED lamps, incandescent lamps and fluorescent benchmark lamps over a product lifecycle – i.e. to develop a sustainable design and manufacturing strategy that addresses product manufacturing, use, recycling and disposal scenarios for LED-based lighting. Based on the knowledge gained from extensive product tear-down studies of fluorescent and screw-in lighting products, lifecycle assessment tools, and accelerated lifecycle testing protocols, an interactive Sustainable LED Design Guide has been developed to aid architectural and lighting designers and engineers in making design decisions that consider three important environmental impacts (greenhouse gas emissions, energy use and mercury emission) across all phases of the life of an LED lighting product. Critical information developed for the lifecycle analysis and product feature comparisons is the useful life of the lighting product as well as its performance. The Design Guide is available at www.ncms.org, and was developed based on operational and durability testing of a variety of lighting products including power consumption, light output, and useful life of a lamp in order to allow a more realistic comparison of lamp designs. This report describes the main project tasks, results and innovative features of the lifecycle assessment (LCA)-based design tools, and the key considerations driving the sustainable design of LED lighting systems. The Design Guide incorporates the following three novel features for efficiently evaluating LED lighting features in value-chains: • Bill-of-Materials (BOM) Builder – Designers may import process data for each component and supply functional data for the product, including power, consumption, lumen output and expected useful life. • Environmental Impact Review – Designs are

  13. Challenges in LED Research and Development | Department of Energy

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

    LED Research and Development Challenges in LED Research and Development View the video about LED lighting technology, where it is headed, and the DOE's role in its continued R&D

  14. LED R&D Challenges | Department of Energy

    Energy Savers [EERE]

    Understanding SSL » LED Basics LED Basics Unlike incandescent lamps, LEDs are not inherently white light sources. Instead, LEDs emit nearly monochromatic light, making them highly efficient for colored light applications such as traffic lights and exit signs. However, to be used as a general light source, white light is needed. White light can be achieved with LEDs in three ways: Phosphor conversion, in which a phosphor is used on or near the LED to convert the colored light to white light RGB

  15. High Efficacy Green LEDs by Polarization Controlled MOVPE

    SciTech Connect (OSTI)

    Wetzel, Christian

    2013-03-31

    Amazing performance in GaInN/GaN based LEDs has become possible by advanced epitaxial growth on a wide variety of substrates over the last decade. An immediate push towards product development and worldwide competition for market share have effectively reduced production cost and generated substantial primary energy savings on a worldwide scale. At all times of the development, this economic pressure forced very fundamental decisions that would shape huge industrial investment. One of those major aspects is the choice of epitaxial growth substrate. The natural questions are to what extend a decision for a certain substrate will limit the ultimate performance and to what extent, the choice of a currently more expensive substrate such as native GaN could overcome any of the remaining performance limitations. Therefore, this project has set out to explore what performance characteristic could be achieved under the utilization of bulk GaN substrate. Our work was guided by the hypotheses that line defects such as threading dislocations in the active region should be avoided and the huge piezoelectric polarization needs to be attenuated if not turned off for higher performing LEDs, particularly in the longer wavelength green and deep green portions of the visible spectrum. At their relatively lower performance level, deep green LEDs are a stronger indicator of relative performance improvements and seem particular sensitive to the challenges at hand. The project therefore made use of recently developed non-polar and semipolar bulk GaN substrates that were made available at Kyma Technologies by crystallographic cuts from thick polar growth of GaN. This approach naturally leads to rather small pieces of substrates, cm along the long side while mm along the short one. Small size and limited volume of sample material therefore set the limits of the ensuing development work. During the course of the project we achieved green and deep green LEDs in all those crystal growth

  16. A Statistical Method Analyzing LED Lumen Depreciation and Projecting LED Life

    SciTech Connect (OSTI)

    Qiao, Hong; Pulsipher, Trenton C.; Hathaway, John E.; Richman, Eric E.; Radkov, Emil

    2010-05-30

    There is a strong need for a method to represent the potential life of LED products as a critical part of design decisions including cost-effectiveness analysis. The IES LM-80 test method is in place to collect lumen depreciation data but it does not provide for estimation of future long term depreciation. Separate estimation methods are being considered (TM-21) and this paper describes the analysis of a series of LED degradation models and subsequent development of an estimation method. The work involves analysis of a set of engineering models to determine their applicability and define a structure for their use in LED lumen output life based on a lumen output level such as the L70 metric. The analysis has provided valuable information on methods effectively estimating LED life time, and impacts of measurement uncertainties, test duration, interval and other test conditions on selecting degradation models and LED life time projection. A set of guidelines are recommended to estimate LED life from data obtained using the current LM-80 test method.

  17. Which LED Lighting Products Would You Consider Trying?

    Broader source: Energy.gov [DOE]

    Which LED lighting products would you consider trying? Or, if you're already using LEDs, what do you think of them?

  18. CONTROLLING LED COLOR-TUNABLE PRODUCTS | Department of Energy

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

    CONTROLLING LED COLOR-TUNABLE PRODUCTS CONTROLLING LED COLOR-TUNABLE PRODUCTS photo of a conference room. Controlling color-tunable luminaires can be challenging for specifiers,...

  19. LEDS Collaboration in Action Workshop Attendee List | Open Energy...

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Attendee List (Redirected from LEDS Collaboration in Action Workshop Participating Countries) Jump to: navigation, search Low Emission...

  20. Guanquan Shandong Photoelectric Technology aka United LED Corporation...

    Open Energy Info (EERE)

    Guanquan Shandong Photoelectric Technology aka United LED Corporation Jump to: navigation, search Name: Guanquan (Shandong) Photoelectric Technology (aka United LED Corporation)...

  1. Text-Alternative Version: Dimming LEDs Webcast | Department of...

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

    Well as many people know LED dimming delivers many other value propositions to LED ... and this is particularly relevant for people who are experienced dimming light sources ...

  2. LEDs Go Ivy League: Princeton's Dillon Gymnasium | Department...

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

    View the video about LED lighting in Dillon Gymnasium, a focal point of sports and recreation at Princeton since 1947. William Evans discusses measurable benefits of LED lighting ...

  3. Solid State Lighting LED Core Technology R&D Roundtable

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

    The document should be referenced as: DOE SSL Program, "Solid State Lighting LED Core Technology R&D Roundtable," November 2015. Authors Monica Hansen LED Lighting Advisors Nnamnor ...

  4. Demonstration of LED Street Lighting in Kansas City, MO Kinzey...

    Office of Scientific and Technical Information (OSTI)

    Street Lighting in Kansas City, MO Kinzey, Bruce R.; Royer, Michael P.; Hadjian, M.; Kauffman, Rick LED streetlighting; field illuminance measurement LED streetlighting; field...

  5. Demonstration Assessment of Light Emitting Diode (LED) Street...

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

    This report summarizes an LED street lighting assessment project conducted to study the applicability of LED luminaires in a street lighting application. emergingtechreportleds...

  6. Demonstration Assessment of Light-Emitting Diode (LED) Freezer...

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

    Demonstration Assessment of Light-Emitting Diode (LED) Freezer Case Lighting Demonstration Assessment of Light-Emitting Diode (LED) Freezer Case Lighting This document is a report ...

  7. White LED with High Package Extraction Efficiency (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: White LED with High Package Extraction Efficiency Citation Details In-Document Search Title: White LED with High Package Extraction Efficiency The goal of this ...

  8. Demonstration of LED Street Lighting in Kansas City, MO (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Demonstration of LED Street Lighting in Kansas City, MO Citation Details In-Document Search Title: Demonstration of LED Street Lighting in Kansas City, MO Nine ...

  9. Exterior LED Lighting Projects at Princeton University | Department...

    Energy Savers [EERE]

    Exterior LED Lighting Projects at Princeton University Exterior LED Lighting Projects at Princeton University 2015gatewayprinceton-exterior.pdf gatewayprinceton-exteriorbrief.p...

  10. Technical Feasibility Assessment of LED Roadway Lighting on the...

    Office of Scientific and Technical Information (OSTI)

    Technical Feasibility Assessment of LED Roadway Lighting on the Golden Gate Bridge Tuenge, Jason R. LED; induction; ceramic metal halide; plasma; roadway lighting; Golden Gate...

  11. (Expired) Nationwide Limited Public Interest Waiver for LED Lighting...

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

    (Expired) Nationwide Limited Public Interest Waiver for LED Lighting and HVAC Units: February 11, 2010 (Expired) Nationwide Limited Public Interest Waiver for LED Lighting and HVAC ...

  12. LED Efficacy: What America Stands to Gain | Department of Energy

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

    Efficacy: What America Stands to Gain LED Efficacy: What America Stands to Gain LED Efficacy-What America Stands to Gain_ November 2015.pdf (280.37 KB)

  13. Pataula Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Pataula Electric Member Corp Jump to: navigation, search Name: Pataula Electric Member Corp Place: Georgia Website: www.cobbemc.com Twitter: @cobbemc Facebook: https:...

  14. Theme 1 Members | Photosynthetic Antenna Research Center

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

    1 Members Theme 1 Members Volker Urban Principal Investigator Read more about Volker Urban Dean Myles Dean Myles Principal Investigator Read more about Dean Myles Himadri Pakrasi...

  15. Text-Alternative Version: LED Essentials- Technology, Applications, Advantages, Disadvantages

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the LED Essentials - Technology, Applications, Advantages, Disadvantages webcast.

  16. New and Underutilized Technology: High Bay LED Lighting

    Broader source: Energy.gov [DOE]

    The following information outlines key deployment considerations for high bay LED lighting within the Federal sector.

  17. Switched-capacitor isolated LED driver

    DOE Patents [OSTI]

    Sanders, Seth R.; Kline, Mitchell

    2016-03-22

    A switched-capacitor voltage converter which is particularly well-suited for receiving a line voltage from which to drive current through a series of light emitting diodes (LEDs). Input voltage is rectified in a multi-level rectifier network having switched capacitors in an ascending-bank configuration for passing voltages in uniform steps between zero volts up to full received voltage V.sub.DC. A regulator section, operating on V.sub.DC, comprises switched-capacitor stages of H-bridge switching and flying capacitors. A current controlled oscillator drives the states of the switched-capacitor stages and changes its frequency to maintain a constant current to the load. Embodiments are described for isolating the load from the mains, utilizing an LC tank circuit or a multi-primary-winding transformer.

  18. Production of monoclonal antibody (MoAB) CS-1 against platelet glycoprotein IIb-IIIa (GP IIb-IIIa)

    SciTech Connect (OSTI)

    Ramsamooj, P.; Morris, M.; Doellgast, G.; Hantgan, R.

    1987-05-01

    Platelet aggregation is mediated by the binding of fibrinogen (FGN) to the platelet GP IIb-IIIa complex. Receptor complex was purified from a solubilized platelet membrane fraction followed by lentil-lectin affinity chromatography and gel filtration. SDS-PAGE showed the product to be the complex, GP IIb-IIIa; light scattering intensity measurements indicated a Ca/sup 2 +/-dependent complex of the appropriate MW. Purified complex was then used to raise antibodies in Balb-c mice by standard hybridoma technology; positive cells were found by ELISA enabling the detection of antibody concentrations as low as 3 ng/ml. The MoABs were purified from both culture supernatant and ascites fluid by ion exchange and protein-A affinity chromatography. Western blotting determined that CS-1 is specific for nonreduced GP IIIa but not reduced GP IIIa or any form of GP IIb. CS-1 inhibited binding of radiolabeled FGN to ADP-stimulated platelets by 40-50% over a concentration range of 5-70 ..mu..g/ml. Flow cytometric analysis confirmed that CS-1 recognized a protein on the surface of both resting and stimulated platelets. The determined specificity of CS-1 and its limited ability to inhibit FGN binding to platelets make this MoAB useful for analysis of the structural and functional relationships between fibrin(ogen) and GP IIb-IIIa.

  19. Executive Committee Member Roster | Department of Energy

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

    Executive Committee Member Roster Executive Committee Member Roster List of NNMCAB members that serve on the Executive Committee ExCom Roster - June 2016 (277.33 KB) More Documents & Publications Environmental Management and Remediation Committee Roster Waste Management Committee Member Roster NNMCAB Membership Roster

  20. DOE ZERH Webinar: LED Lighting Efficiency | Department of Energy

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

    LED Lighting Efficiency DOE ZERH Webinar: LED Lighting Efficiency Description: LED lighting offers efficiency and performance benefits we've never seen in traditional lighting technologies. Commercial buildings have seen rapid growth in LED deployment, and in the residential arena leading builders are now integrating LED lighting packages. And as with any new building system, there are integration challenges along with the process of consumer understanding and acceptance. This webinar will

  1. Members | Center for Gas Separations

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

    Members Novel MOFs Membranes Character-ization Compu-tation Alumni Admin-istration Novel MOFs Principal Investigators Jeffrey R. Long Omar M. Yaghi Hong-Cai (Joe) Zhou Researchers Gokhan Barin Postdoctoral Researcher University of California, Berkeley barin@berkeley.edu Development of high capacity porous organic polymers for toxic gas removal from air Ying-Pin Chen PhD Student Texas A&M University ying-pin.chen@chem.tamu.edu Investigation of CO2/CH4 adsorption behavior in MOFs and

  2. LED R&D Projects | Department of Energy

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

    LED R&D Projects LED R&D Projects DOE-funded LED R&D projects tackle the science and technology challenges that stand in the way of achieving SSL Program targets for LED efficacy, performance, and cost. All project selections align with the priorities and targets detailed in the SSL R&D Plan, updated annually with industry input. Learn more about R&D challenges to accelerate LED technology advances. View details about the current LED R&D projects below. Alternative

  3. Demonstration Assessment of Light-Emitting Diode (LED) Roadway...

    Office of Scientific and Technical Information (OSTI)

    The LEDs had an average illuminance level of 0.91 foot candles compared to 1.29 fc for the HPS lamps. The LED luminairesmore cost 38,000 more than HPS lamps, yielding a lengthy ...

  4. File:(131112) Presentacion LAC LEDs.pdf | Open Energy Information

    Open Energy Info (EERE)

    (131112) Presentacion LAC LEDs.pdf Jump to: navigation, search File File history File usage File:(131112) Presentacion LAC LEDs.pdf Size of this preview: 800 600 pixels. Go to...

  5. Color Maintenance of LEDs in Laboratory and Field Applications

    SciTech Connect (OSTI)

    Royer, Michael; Tuttle, Ralph; Rosenfeld, Scott; Miller, Naomi

    2013-09-30

    GATEWAY program report on color shift data of LED lamps used in real-world applications as well as LED products monitored by the CALiPER program in a lab environment.

  6. Text-Alternative Version: Challenges in LED Research and Development

    Broader source: Energy.gov [DOE]

    Narrator: LEDs have made remarkable progress in the past decade and gained a strong foothold in the US marketplace. In 2012, LED lighting saved an estimated 71 trillion BTUs, equivalent to annual...

  7. Consortium Led by University of California, Berkeley Awarded...

    National Nuclear Security Administration (NNSA)

    Consortium Led by University of California, Berkeley Awarded 25M NNSA Grant for Nuclear ... award of 25 million to a University of California, Berkeley-led consortium of eight ...

  8. TESTING LED COLOR-TUNABLE PRODUCTS | Department of Energy

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

    TESTING LED COLOR-TUNABLE PRODUCTS TESTING LED COLOR-TUNABLE PRODUCTS Cover of CALiPER Report 23. New product capabilities and performance variables require new test methods to be ...

  9. Team Led by Argonne National Lab Selected as DOE's Batteries...

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

    Team Led by Argonne National Lab Selected as DOE's Batteries and Energy Storage Hub On ... to announce that a multi-partner team led by Argonne National Laboratory has been ...

  10. Reducing LED Costs Through Innovation | Department of Energy

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

    Reducing LED Costs Through Innovation Reducing LED Costs Through Innovation November 19, 2013 - 3:49pm Addthis A combination solid-state laser turret cutter and stamping machine ...

  11. DOE-Led Research Team Makes Significant Rare Earth Discovery...

    Office of Environmental Management (EM)

    DOE-Led Research Team Makes Significant Rare Earth Discovery DOE-Led Research Team Makes ... Energy (DOE) has found that rare earth elements (REEs) can be removed from two U.S. ...

  12. LED Traffic Lights Get Buy American Stamp | Department of Energy

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

    Red. Yellow. Green. What LED traffic signals don't say: Made in USA. That is changing. ... Lindsey Gsell is a Staff Writer for Energy Empowers. Addthis Related Articles LED traffic ...

  13. LEDs Go Ivy League: Princeton’s Dillon Gymnasium

    Office of Energy Efficiency and Renewable Energy (EERE)

    View the video about LED lighting in Dillon Gymnasium, a focal point of sports and recreation at Princeton since 1947. William Evans discusses measurable benefits of LED lighting in the gym and...

  14. CALiPER Application Summary Report 19. LED Linear Pendants

    SciTech Connect (OSTI)

    none,

    2012-10-01

    Report 19 reviews the independently tested performance of nine LED linear pendants and also evaluates a collection of 11 linear pendant products available in both an LED and fluorescent version.

  15. Model Specification for LED Roadway Luminaires, V2.0

    Broader source: Energy.gov [DOE]

    Version 2.0 of the Model Specification for LED Roadway Luminaires is now available. Changes are substantial and include streamlined structure and formatting, new diagrams, updated references, and leveraging of LED Lighting Facts® program guidance.

  16. To Bridge LEDs' Green Gap, Scientists Think Small

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

    ... This "direct" method isn't practical today because green LEDs are not as efficient as their blue and red counterparts. Instead, most white lighting today comes from blue LED light ...

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

    Energy Savers [EERE]

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

  18. REA Refrigerated Display Case LED Lighting Performance Specification |

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

    Department of Energy REA Refrigerated Display Case LED Lighting Performance Specification REA Refrigerated Display Case LED Lighting Performance Specification A Retailer Energy Alliances (REA) Project rea_refrig_display_spec.pdf (300.24 KB) More Documents & Publications CBEA LED Site Lighting Specification - Version 1.3, Released 2/15/2012 Model Specification for LED Roadway Luminaires, V2.0 CBEA High-Efficiency Parking Structure Lighting Specification

  19. List of LED Exit Signs Incentives | Open Energy Information

    Open Energy Info (EERE)

    upgrades Water Heaters Whole House Fans LED Exit Signs CHPCogeneration Biomass Photovoltaics Yes Energy Optimization (Electric) - Commercial Efficiency Program...

  20. Study: Environmental Benefits of LEDs Greater Than CFLs | Department of

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

    Energy Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs December 9, 2013 - 4:13pm Addthis A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic

  1. Supercomputers Help Identify Efficiency-Limiting Defects in LEDs

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

    Supercomputers Help Identify Efficiency-Limiting Defects in LEDs Supercomputers Help Identify Efficiency-Limiting Defects in LEDs July 18, 2016 Contact: Kathy Kincade, kkincade@lbl.gov, +1 510 495 2124 ChrisVanDerWalle PressReleaseImage A conceptual illustration of how defects in a crystal lattice might contribute to nonradiative recombination of electrons and holes in LEDs. Image: Peter Allen Light-emitting diodes (LEDs) have found firm footing in the lighting industry, not just for blue and

  2. Demonstration of Light-Emitting Diode (LED) Retrofit Lamps

    SciTech Connect (OSTI)

    Miller, N.

    2011-09-01

    GATEWAY program report on a demonstration of LED retrofit lamps at the Jordan Schnitzer Museum of art in Eugene, OR

  3. LED T8 Replacement Lamps | Department of Energy

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

    T8 Replacement Lamps LED T8 Replacement Lamps This documents provides an overview of LED T8 replacement lamps and helps define a reasonable minimum performance level for the purpose of plant-wide improvement. LED T8 Replacement Lamps (April 2010) (809.84 KB) More Documents & Publications Emerging Lighting Technology General Service LED Lamps Guiding Market Introduction of High-Performance SSL Products

  4. LED Parking Lot Lighting Working Group Fact Sheet

    SciTech Connect (OSTI)

    2008-10-01

    This fact sheet describes the Retailer Energy Alliance LED Parking Lot Lighting Working Group and its Technology Procurement Project.

  5. Considerations When Comparing LED and Conventional Lighting | Department of

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

    Energy Using LEDs » Considerations When Comparing LED and Conventional Lighting Considerations When Comparing LED and Conventional Lighting When comparing LED lighting performance to conventional lighting, buyers will want to consider energy efficiency, operating life and lumen depreciation, light output/distribution, color quality, color shift, dimmability, and expected lifetime. Energy efficiency The final energy efficiency of any lighting system depends on more than the efficacy of the

  6. Washington Elec Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Washington Elec Member Corp Jump to: navigation, search Name: Washington Elec Member Corp Place: Georgia Phone Number: 478-552-2577; 1-800-552-2577 Website: washingtonemc.com...

  7. Brunswick Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Brunswick Electric Member Corp Jump to: navigation, search Name: Brunswick Electric Member Corp Place: North Carolina Phone Number: 1-800-682-5309 Website: www.bemc.org Outage...

  8. CALiPER Snapshot Report: Indoor LED Luminaires

    SciTech Connect (OSTI)

    2014-04-01

    Snapshot reports use data from DOE's LED Lighting Facts product list to compare the LED performance to standard technologies, and are designed to help lighting retailers, distributors, designers, utilities, energy efficiency program sponsors, and other stakeholders understand the current state of the LED market and its trajectory.

  9. DOE Publishes Report on Color Stability of LED Lighting Products

    Broader source: Energy.gov [DOE]

    DOE has published a new GATEWAY report on color maintenance of LEDs in laboratory and field applications, summarizing color shift data of LED lamps used in real-world applications as well as LED products monitored by the CALiPER program in a lab

  10. LED Luminaire Lifetime: Recommendations For Testing and Reporting |

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

    Department of Energy Luminaire Lifetime: Recommendations For Testing and Reporting LED Luminaire Lifetime: Recommendations For Testing and Reporting LED Luminaire Lifetime: September 2014 (774.47 KB) More Documents & Publications System Reliability Model for Solid-State Lighting Luminaires LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting Lifetime and Reliability

  11. TEC Working Group Members | Department of Energy

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

    Members TEC Working Group Members TEC members represent many different national, regional, tribal, state and local governmental, labor, industry and professional groups. To maximize the opportunity for broad-based input and information exchange, no single state, local or tribal governmental, or other entity is itself a member. Instead, membership is composed of organizations representing those perspectives. DOE programs participate in TEC by providing regular updates on key activities and

  12. To Bridge LEDs' Green Gap, Scientists Think Small

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

    To Bridge LEDs' Green Gap, Scientists Think Small To Bridge LEDs' Green Gap, Scientists Think Small Nanostructures Half a DNA Strand-Wide Show Promise for Efficient LEDs April 4, 2014 Contact: Margie Wylie, mwylie@lbl.gov, +1 510 486 7421 Nanostructures half the breadth of a DNA strand could improve the efficiency of light emitting diodes (LEDs), especially in the "green gap," a portion of the spectrum where LED efficiency plunges, simulations at the U.S. Department of Energy's

  13. Cree Sets New Benchmarks for LED Efficacy and Brightness

    Broader source: Energy.gov [DOE]

    Cree has successfully created a cool white LED prototype that delivers 107 lm/W at 350mA. This achievement builds on the Cree EZBright® LED chip platform, developed in part with prior funding support from DOE. Cree made the prototype LED under their DOE project focused on developing LED chips incorporating photonic crystal elements for improved light extraction and novel package technology for higher down-conversion efficiency compared to conventional LEDs. Based on a 1 millimeter-square chip, the new prototype LED produces white light with a CCT of 5500K and a CRI of 73. Integration of four of these prototype LEDs can produce luminous flux of more than 450 lumens.

  14. Nationwide Limited Public Interest Waiver for LED and HVAC Units |

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

    Department of Energy Limited Public Interest Waiver for LED and HVAC Units Nationwide Limited Public Interest Waiver for LED and HVAC Units eere_nationwide_public_interest_waiver (55.98 KB) More Documents & Publications Nationwide Nonavailability Waiver: February 11, 2010 (Please note, the waiver for LED traffic signals has been withdrawn effective December 1, 2010) Nationwide Nonavailability Waiver: November 5, 2010 Amended Nationwide Nonavailability Waiver: November 5

  15. New DOE Report Estimates LED Savings in Common Lighting Applications |

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

    Department of Energy Report Estimates LED Savings in Common Lighting Applications New DOE Report Estimates LED Savings in Common Lighting Applications July 24, 2015 - 11:00am Addthis The U.S. Department of Energy (DOE) has released its latest report in a series analyzing markets where LEDs compete with traditional lighting sources. The new report, Adoption of Light-Emitting Diodes in Common Lighting Applications, reveals a wealth of insights into promising pathways for SSL technology

  16. Energy Department Announces New Investments in University-Led Nuclear

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

    Energy Innovation | Department of Energy in University-Led Nuclear Energy Innovation Energy Department Announces New Investments in University-Led Nuclear Energy Innovation September 27, 2012 - 11:07am Addthis WASHINGTON - As part of the Obama Administration's all-of-the-above energy strategy to deploy every available source of American energy and ensure the U.S. remains competitive globally, the Energy Department announced today more than $13 million in new investments for university-led

  17. Purchasing Energy-Efficient Commercial and Industrial LED Luminaires |

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

    Department of Energy Commercial and Industrial LED Luminaires Purchasing Energy-Efficient Commercial and Industrial LED Luminaires The Federal Energy Management Program (FEMP) provides acquisition guidance for commercial and industrial light emitting diode (LED) luminaires, a product category covered by FEMP efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified or FEMP-designated products in all product categories covered by these

  18. Successful Selection of LED Streetlight Luminaires: Optimizing Illumination

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

    and Economic Performance | Department of Energy Webcasts » Successful Selection of LED Streetlight Luminaires: Optimizing Illumination and Economic Performance Successful Selection of LED Streetlight Luminaires: Optimizing Illumination and Economic Performance This March 6, 2013 webcast reviewed the factors involved in successful selection of LED streetlight luminaires. Presenters Eric Haugaard of Cree Lighting and Chad Stalker of Philips Lumileds guided participants through the modeling of

  19. Color Maintenance of LEDs in Laboratory and Field Applications (Technical

    Office of Scientific and Technical Information (OSTI)

    Report) | SciTech Connect Color Maintenance of LEDs in Laboratory and Field Applications Citation Details In-Document Search Title: Color Maintenance of LEDs in Laboratory and Field Applications Synopsis: To date, consideration for parametric failure of LED products has largely been focused on lumen maintenance. However, color shift is a cause of early failure for some products, and is especially important to consider in certain applications, like museums, where visual appearance is

  20. Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA Citation Details In-Document Search Title: Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA For this demonstration assessment, 10 different groups of LED luminaires were installed at three sites in Philadelphia, PA. Each of the three sites represented a different set of conditions, most importantly with regard to the incumbent HPS luminaires, which were nominally 100 W,

  1. Low Cost, High Efficiency Tandem Silicon Solar Cells and LEDs...

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

    Building Energy Efficiency Building Energy ... Return to Search Low Cost, High Efficiency Tandem Silicon Solar Cells and LEDs ... gaps will lead to efficient power conversion. ...

  2. Adopting LED Technology: What Federal Facility Managers Need to Know

    Broader source: Energy.gov [DOE]

    This document describes the presentation slides for the "Adopting LED Technology: What Federal Facility Managers Need to Know" webinar that took place on September 11, 2014.

  3. Next-Generation LED Package Architectures Enabled by Thermally...

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

    This project will develop next-generation LED package architectures enabled by thermally conductive composite encapsulant materials utilizing boron nitride (BN). Nanoscale boron ...

  4. DOE Publishes GATEWAY Report on Successful LED Wall Washer Retrofit...

    Energy Savers [EERE]

    while retaining the quality of light when LED modules replaced 87 halogen lamps in existing wall washers at the University of Maryland's (UMD) Clarice Smith Performing Arts Center. ...

  5. LEDS Collaboration in Action Workshop Links | Open Energy Information

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Links Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission development...

  6. LEDS Collaboration in Action Workshop Accommodations | Open Energy...

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Accommodations Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission...

  7. LEDS Collaboration in Action Workshop Agenda | Open Energy Information

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Agenda Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission...

  8. LEDS Collaboration in Action Workshop Participant Pack | Open...

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Participant Pack Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission...

  9. Study: Environmental Benefits of LEDs Greater Than CFLs | Department...

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

    to date. The study - which evaluated not only the use but also the manufacturing, transport, and disposal of LED, CFL, and incandescent lamps throughout each product...

  10. New DOE Report Estimates LED Savings in Common Lighting Applications...

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

    report in a series analyzing markets where LEDs compete with traditional lighting sources. ... applications, as well as the potential energy savings if each of these ...

  11. Solid State Lighting LED Product Development and Manufacturing...

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

    ... introduced into the SSL system, protecting LED luminaires ... pump wavelengths and operating conditions, and the ... with the advance of human-robot interactions, natural ...

  12. LED Site Lighting in the Commercial Building Sector: Opportunities...

    Energy Savers [EERE]

    Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification LED Site Lighting in the Commercial Building Sector: ...

  13. Yuma Border Patrol Area Lighting Retrofit LED System Performance...

    Energy Savers [EERE]

    Host Site: Yuma Border Patrol, Yuma, Arizona April 2015 Prepared for: Solid-State Lighting ... Pacific Northwest National Laboratory Yuma Border Patrol Area Lighting Retrofit LED System ...

  14. Lighting for Health: LEDs in the New Age of Illumination

    SciTech Connect (OSTI)

    2014-05-01

    DOE Solid-State Lighting program technology fact sheet that provides background on current science and considerations related to LED light and health.

  15. DOE Announces Webinars on Maintenance Practices for LED Streetlights...

    Office of Environmental Management (EM)

    Webinar sponsor: DOE's Municipal Solid-State Street Lighting Consortium The Energy ... their cities' respective LED street lighting programs and lessons learned along the ...

  16. LED Lighting Facts/CALiPER Snapshot. Outdoor Ambient Lighting

    SciTech Connect (OSTI)

    2013-07-01

    Snapshot reports reveal how today's products really perform, drawing on analysis of verified performance data from the LED Lighting Facts program's online product list.

  17. Text-Alternative Version: LED Site Lighting in the Commercial...

    Energy Savers [EERE]

    Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification Text-Alternative Version: LED Site Lighting in the Commercial ...

  18. LEDS Collaboration in Action Workshop Open Space Sessions | Open...

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Open Space Sessions Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient,...

  19. Color Maintenance of LEDs in Laboratory and Field Applications...

    Office of Scientific and Technical Information (OSTI)

    Royer, Michael P.; Tuttle, Ralph; Rosenfeld, Scott M.; Miller, Naomi J. Light-emitting diode (LED), color shift, color stability, color maintenance, warranty Light-emitting...

  20. IADB/UNDP LEDS Community of Practice | Open Energy Information

    Open Energy Info (EERE)

    to communicate different methods for preparation of LED strategies including: The involvement of sectors and stakeholders Updating GHG inventories Preparation and analysis of...

  1. Demonstration of LED Street Lighting in Kansas City, MO (Technical...

    Office of Scientific and Technical Information (OSTI)

    not expected to be reached by the LED products until some distant future date (between 12 and 30 years after installation according to manufacturer specification sheet estimates). ...

  2. LEDs Go Ivy League: Princeton University and DOE GATEWAY Demonstrations

    Office of Energy Efficiency and Renewable Energy (EERE)

    View the video about LED lighting at Princeton University, which has dramatically reduced energy costs in a number of installations around campus. William Evans, electrical engineer, describes the...

  3. LEDS Collaboration in Action Workshop Biography | Open Energy...

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Biography Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission...

  4. Reducing LED Costs Through Innovation | Department of Energy

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

    Researchers at Eaton are developing a new manufacturing process will enable LED chips to sit directly on heat sinks, improving heat transfer. | Photo courtesy of Eaton Corporation ...

  5. Energy Department Announces New University-Led Projects to Create...

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

    Chu announced today new investments totaling 10 million over five years for two university-led projects to advance innovative concentrating solar power (CSP) system technologies. ...

  6. Application Assessment of Bi-Level LED Parking Lot Lighting

    SciTech Connect (OSTI)

    Johnson, Megan; Cook, Tyson; Shackelford, Jordan; Pang, Terrance

    2009-02-01

    This report summarizes an assessment project conducted to evaluate light-emitting diode (LED) luminaires with bi-level operation in an outdoor parking lot application.

  7. LEDS Collaboration in Action Workshop Contact Us | Open Energy...

    Open Energy Info (EERE)

    LEDS Collaboration in Action Workshop Contact Us Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission...

  8. LED Provides Effective and Efficient Parking Area Lighting at...

    Office of Environmental Management (EM)

    LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center Document details new lighting technology that reduces energy consumption and ...

  9. #AskEnergySaver: LED Lights | Department of Energy

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

    LED Lights #AskEnergySaver: LED Lights April 24, 2014 - 6:00pm Addthis LED lights are six to seven times more energy efficient than conventional incandescent lights, cut energy use by more than 80 percent and can last more than 25 times longer. | Photo courtesy of Dennis Schroeder, NREL. LED lights are six to seven times more energy efficient than conventional incandescent lights, cut energy use by more than 80 percent and can last more than 25 times longer. | Photo courtesy of Dennis Schroeder,

  10. LED Color Stability: 10 Important Questions | Department of Energy

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

    LED Color Stability: 10 Important Questions LED Color Stability: 10 Important Questions This April 15, 2014 webinar examined the causes of color shift, and took a look at existing metrics used to describe color shift/color stability in LED lighting. The lumen maintenance lifetime of many LED products is 25,000 hours or more, but that doesn't mean products are guaranteed to perform the same over that time. One thing that could change is the color of the light, or chromaticity. Presenters Michael

  11. Model Specification for LED Roadway Luminaires Webcast | Department...

    Energy Savers [EERE]

    how it can be customized to meet the particular needs of individual organizations in order to help them put together effective bid documents for LED street lighting products. ...

  12. REA Refrigerated Display Case LED Lighting Performance Specification...

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

    A Retailer Energy Alliances (REA) Project PDF icon rearefrigdisplayspec.pdf More Documents & Publications CBEA LED Site Lighting Specification - Version 1.3, Released 2152012 ...

  13. High Impact Technology HQ - Results - LED Troffer, Cove (linear...

    Energy Savers [EERE]

    Icahn Laboratory More Documents & Publications DOE Booth Presentations From Grainger Show 2015 Downloads Exterior LED Lighting Projects at Princeton University Snapshot: Downlights

  14. LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting...

    Energy Savers [EERE]

    More Documents & Publications System Reliability Model for Solid-State Lighting Luminaires LED Luminaire Lifetime: Recommendations For Testing and Reporting System Reliability ...

  15. High Bandgap Phosphide Approaches for LED Applications - Energy...

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

    A new approach to fabricating high-efficiency Amber LEDs National Renewable Energy Laboratory Contact NREL About This Technology Publications: PDF Document Publication AlInP Green ...

  16. URTAC Committee Members | Department of Energy

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

    URTAC Committee Members URTAC Committee Members 2012-2014 Unconventional Resources Technology Advisory Committee Members Dr. Nancy J. Brown* Senior Scientist and Department Head Lawrence Berkeley National Laboratory Mr. Wayne K. Camp Senior Geological Advisor Anadarko Petroleum Corporation Ms. Jessica J. Cavens Geologist EnCana Oil & Gas (USA) Mr. William S. Daugherty Managing Partner Blackridge Resources Mr. James P. Dwyer VP Region Engineering Baker Hughes Mr. J. Chris Hall President

  17. Walton Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Electric Member Corp Place: Georgia Website: www.waltonemc.com Twitter: @waltonemc Facebook: https:www.facebook.comwaltonemc Outage Hotline: 770-267-2505 Outage Map:...

  18. LEDSGP/about/members | Open Energy Information

    Open Energy Info (EERE)

    - logo.jpg Governmental Members Alternative Energy Promotion Centre, Ministry of science, Technology and Environment Auckland New Zealand City Government Australian Agency...

  19. SSRLUO 2007 Executive Committee Members | Stanford Synchrotron...

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

    Committee Members Joy Andrews (Ex-Officio) California State University East Bay, Chemistry, 25800 Carlos Bee Blvd., Hayward, CA 94542 Professor in the Department of Chemistry...

  20. Nothing But Networking for Residential Network Members

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Peer Exchange Call: Nothing But Networking for Residential Network Members, Call Slides and Discussion Summary, March 12, 2015.

  1. LED Chips and Packaging for 120 LPW SSL Component

    SciTech Connect (OSTI)

    Ibbetson, James

    2009-12-28

    Cree has developed a new, high-efficiency, low-cost, light emitting diode (LED) lamp module that should be capable of replacing standard, halogen, fluorescent and metal halide lamps based on the total cost of ownership. White LEDs are produced by combining one or more saturated color LEDs with a phosphor or other light down-converting media to achieve white broad-band illumination. This two year project addressed LED chip and package efficiency improvements to establish a technology platform suitable for low-cost, high-efficiency commercial luminaires. Novel photonic-crystal LEDs were developed to improve the light extraction efficiency of blue GaN-based LEDs compared to the baseline technology. Improved packaging designs that reduced down-conversion and absorption related light losses, led to a higher overall LED efficiency. Specifically, blue LEDs were demonstrated with light output nearing 600 mW and an external quantum efficiency greater than 60 percent (using 1 mm2 chips at an operating current of 350 mA). The results were achieved using a novel, production capable photonic-crystal LED fabrication process. These LEDs formed the basis for a multi-chip white lamp module prototype, which provided 510 lumens light output at a correlated color temperature (CCT) of 3875 K and an operating current of 350 mA per 1mm2 chip. The overall conversion efficiency at 4100 K improved to ~ 65%. The resulting efficacy is 112 lumens per watt (LPW) a 33% improvement over the start of the project. In addition, a proof-of-concept luminaire was demonstrated that provided a flux of 1700 lumens at a 3842 K CCT.

  2. NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating...

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

    Currently, five companies from the 19-member CCSI industry team have licensed the Toolset: General Electric, Alstom Power, Phillips 66, Babcock & Wilcox, and Chevron. The CCSI ...

  3. Appraisers Project Plan: Wireless Controls and Retrofit LED Lighting Demonstration

    Broader source: Energy.gov [DOE]

    Appraisers Project Plan: Wireless Controls and Retrofit LED Lighting Demonstration Measurement and Verification Report This report details the measurement and verification tools and methods used to evaluate the effectiveness of wireless lighting controls and LED lighting at the Appraisers Building, a federal office building in San Francisco, CA.

  4. Low Cost Lithography Tool for High Brightness LED Manufacturing

    SciTech Connect (OSTI)

    Andrew Hawryluk; Emily True

    2012-06-30

    The objective of this activity was to address the need for improved manufacturing tools for LEDs. Improvements include lower cost (both capital equipment cost reductions and cost-ofownership reductions), better automation and better yields. To meet the DOE objective of $1- 2/kilolumen, it will be necessary to develop these highly automated manufacturing tools. Lithography is used extensively in the fabrication of high-brightness LEDs, but the tools used to date are not scalable to high-volume manufacturing. This activity addressed the LED lithography process. During R&D and low volume manufacturing, most LED companies use contact-printers. However, several industries have shown that these printers are incompatible with high volume manufacturing and the LED industry needs to evolve to projection steppers. The need for projection lithography tools for LED manufacturing is identified in the Solid State Lighting Manufacturing Roadmap Draft, June 2009. The Roadmap states that Projection tools are needed by 2011. This work will modify a stepper, originally designed for semiconductor manufacturing, for use in LED manufacturing. This work addresses improvements to yield, material handling, automation and throughput for LED manufacturing while reducing the capital equipment cost.

  5. Member Institutions | Photosynthetic Antenna Research Center

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

    Member Institutions Member Institutions The 14 participating institutions and 21 principal investigators that comprise the Photosynthetic Antenna Research Center (PARC) are listed below. Washington University in St. Louis -- PARC's Host and Administrative Home - Bob Blankenship, PARC Director - Dewey Holten, PARC Associate Director - Michael Gross - Christine Kirmaier - Himadri Pakrasi Los Alamos National Laboratory - Gabriel Montaño North Carolina State University - Jonathan Lindsey

  6. Data: Better Buildings Residential Network Members

    Office of Energy Efficiency and Renewable Energy (EERE)

    Better Buildings Residential Network members come from all sectors of the energy efficiency industry to leverage one another's experiences and expertise in an effort to accelerate the pace of energy upgrades in existing homes. Members include state and local governments, nonprofit organizations, utilities, financial institutions, and private-sector companies involved in energy efficiency programs in their locality.

  7. LOW-COST LED LUMINAIRE FOR GENERAL ILLUMINATION

    SciTech Connect (OSTI)

    Lowes, Ted

    2014-07-31

    During this two-year Solid-State Lighting (SSL) Manufacturing R&D project Cree developed novel light emitting diode (LED) technologies contributing to a cost-optimized, efficient LED troffer luminaire platform emitting at ~3500K correlated color temperature (CCT) at a color rendering index (CRI) of >90. To successfully achieve program goals, Cree used a comprehensive approach to address cost reduction of the various optical, thermal and electrical subsystems in the luminaire without impacting performance. These developments built on Cree’s high- brightness, low-cost LED platforms to design a novel LED component architecture that will enable low-cost troffer luminaire designs with high total system efficacy. The project scope included cost reductions to nearly all major troffer subsystems as well as assembly costs. For example, no thermal management components were included in the troffer, owing to the optimized distribution of compact low- to mid-power LEDs. It is estimated that a significant manufacturing cost savings will result relative to Cree’s conventional troffers at the start of the project. A chief project accomplishment was the successful development of a new compact, high-efficacy LED component geometry with a broad far-field intensity distribution and even color point vs. emission angle. After further optimization and testing for production, the Cree XQ series of LEDs resulted. XQ LEDs are currently utilized in Cree’s AR series troffers, and they are being considered for use in other platforms. The XQ lens geometry influenced the independent development of Cree’s XB-E and XB-G high-voltage LEDs, which also have a broad intensity distribution at high efficacy, and are finding wide implementation in Cree’s omnidirectional A-lamps.

  8. sup 1 H and sup 31 P-NMR assignments of the non-exchangeable protons of the consensus acceptor exon:intron junction d(CpTpApCpApGpGpT)

    SciTech Connect (OSTI)

    Lown, J.W.; Chang, D.K.; Debart, F.; Rayner, B.; Imbach, J.L. )

    1986-06-01

    The consensus acceptor exon:intron junction d(CpTpApCpApGpGpT) has been synthesized by a modified phosphotriester method. The non-self complementary octamer exists in the single strand form in aqueous buffer at 20 degrees C as evidenced by temperature variable {sup 1}H-NMR and NOE measurements. The non-exchangeable proton assignments were secured using a combination of techniques including two-dimensional COSY, NOESY and the double quantum technique {sup 1}H-{sup 1}H-INADEQUATE as well as inversion recovery T1 experiments. The new technique of {sup 31}P-1H shift correlation is particularly valuable in removing certain ambiguities in the sugar proton assignments. Characteristic chemical shifts for the base protons which are determined by their immediate molecular environments are also useful in assignments. The consensus acceptor exon:intron junction adopts a random coil conformation in solution under the experimental conditions employed.

  9. Controlling LED Color-Tunable Products Text-alternative Version |

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

    Department of Energy Controlling LED Color-Tunable Products Text-alternative Version Controlling LED Color-Tunable Products Text-alternative Version This is the text-alternative version of Controlling LED Color-Tunable Products. Specifiers need to think very carefully when they are specifying controls for color-tunable luminaires. The ease of using that control is key. If the controls are too complex, they're not going to be used, or they're going to be abandoned or someone's going to

  10. Optimized Phosphors for Warm White LED Light Engines

    SciTech Connect (OSTI)

    Setlur, Anant; Brewster, Megan; Garcia, Florencio; Hill, M. Christine; Lyons, Robert; Murphy, James; Stecher, Tom; Stoklosa, Stan; Weaver, Stan; Happek, Uwe; Aesram, Danny; Deshpande, Anirudha

    2012-07-30

    The objective of this program is to develop phosphor systems and LED light engines that have steady-state LED efficacies (using LEDs with a 60% wall-plug efficiency) of 105–120 lm/W with correlated color temperatures (CCT) ~3000 K, color rendering indices (CRI) >85, <0.003 distance from the blackbody curve (dbb), and <2% loss in phosphor efficiency under high temperature, high humidity conditions. In order to reach these goals, this involves the composition and processing optimization of phosphors previously developed by GE in combination with light engine package modification.

  11. LED Traffic Lights Get Buy American Stamp | Department of Energy

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

    documents provides an overview of LED T8 replacement lamps and helps define a reasonable minimum performance level for the purpose of plant-wide improvement. LED T8 Replacement Lamps (April 2010) (809.84 KB) More Documents & Publications Emerging Lighting Technology Guiding Market Introduction of High-Performance SSL Products DOE Booth Presentations From Grainger Show 2015 Downloads

    LED traffic lights are assembled at Dialight’s factory in Roxboro, N.C. The company has expanded

  12. MOF Coating a Promising Path to White LEDs

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

    MOF Coating a Promising Path to White LEDs MOF Coating a Promising Path to White LEDs Print Friday, 27 February 2015 17:11 Hu et al. designed a new yellow phosphor with high quantum yield by immobilizing a preslected chromophore into the rigid framework of a metal-organic framework (MOF); the structure was determined at Beamline 11.3.1. Coating a blue light-emitting diode (LED) with this compound readily generates white light with high luminous efficacy. The new yellow phosphor demonstrates

  13. Shedding new light on LEDs | Argonne National Laboratory

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

    new light on LEDs By Louise Lerner * April 18, 2012 Tweet EmailPrint LEDs, or light-emitting diodes, are the secret behind your iPhone screen, flatscreen TVs, Christmas lights and crosswalk signals. They can last longer and save more energy than traditional incandescent bulbs. But there is one thing they aren't very good at: efficiently emitting light in the yellow-green spectrum. Argonne and Purdue researchers are peering deep into the atomic structure and composition of LED lights in order to

  14. Understanding LED Color-Tunable Products Text-alternative Version |

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

    Department of Energy Understanding LED Color-Tunable Products Text-alternative Version Understanding LED Color-Tunable Products Text-alternative Version This is the text-alternative version of Understanding LED Color-Tunable Products. Color-tunable luminaires are different from normal luminaires in that instead of being one constant color they can change in color. We have three basic flavors on the market. One is called dim-to-warm, which starts out at a normal whitish color-- like a 3000k

  15. University of Nevada Las Vegas LED Display Engineering

    SciTech Connect (OSTI)

    2010-08-31

    The primary objective of this part of the project is to develop and implement a method that compensates for the inefficiency of the green LED. The proposed engineering solution which will be the backbone of this project will be to use RGBW combination in every pixel to save energy. Two different RGBW geometrical pixel configurations will be implemented and compared against traditional LED configurations. These configurations will be analyzed for energy efficiency while keeping the quality of the display the same. Cost of the addition of white LEDs to displays along with energy cost savings will be presented and analyzed.

  16. LED Lighting on the National Mall | Department of Energy

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

    "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said Secretary Chu. "Investing in an American economy that is built to ...

  17. LEDS Collaboration in Action Workshop | Open Energy Information

    Open Energy Info (EERE)

    on LEDS globally. The workshop goals were to: Convene low emissions development and low carbon growth decision-makers Promote South-South and North-South collaboration and...

  18. White LED with High Package Extraction Efficiency (Technical...

    Office of Scientific and Technical Information (OSTI)

    Visit OSTI to utilize additional information resources in energy science and technology. A ... the blue light from the LED die and converts it into a broad green-yellow emission. ...

  19. Slideshow: Flipping the Switch on LED Lighting for the National...

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

    "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said Secretary Chu. "Investing in an American economy that is built to ...

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

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

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

  1. DOE Science Showcase - Light-emitting Diode (LED) Lighting Research...

    Office of Scientific and Technical Information (OSTI)

    LED Research Information in DOE Databases SciTech Connect National Library of EnergyBeta Science.gov Ciencia.Science.gov WorldWideScience.org Visit the Science Showcase homepage. ...

  2. EECBG Success Story: Solar LED Light Pilot Project Illuminates...

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

    solar-powered LED lights that replaced natural gas-powered streetlights in the city of Deming, New Mexico. | DOE photo EECBG Success Story: Energy Efficiency in New Mexico Frees ...

  3. Solid State Lighting LED Product Development and Manufacturing...

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

    ... The FY17 milestone remains a good target for luminaires. The typical price of a 3,500 lumen 2'x4' LED troffer at 100 lmW is currently about 90-95 per unit, however work is ...

  4. Demonstration Assessment of Light Emitting Diode (LED) Street...

    Energy Savers [EERE]

    Demonstration Assessment of Light Emitting Diode (LED) Street Lighting Host Site: City of Oakland, California Final Report prepared in support of the U.S. DOE Solid-State Lighting ...

  5. National Consortium Supports Cities in Evaluating LED Streetlights

    SciTech Connect (OSTI)

    2013-09-30

    Fact sheet that introduces Municipal Solid-State Street Lighting Consortium, a group of municipalities, utilities, and energy efficiency organizations who are interested in making investments in LED street and area lighting.

  6. LED Luminaire Lifetime: Recommendations for Testing and Reporting

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

    ... As of July 2013, 200 sample lamps had been continuously tested at a 45 o C ambient temperature for over 25,000 hours. This is perhaps the largest publicly available data set on LED ...

  7. Laboratory Evaluation of LED T8 Replacement Lamp Products

    SciTech Connect (OSTI)

    Richman, Eric E.; Kinzey, Bruce R.; Miller, Naomi J.

    2011-05-23

    A report on a lab setting analysis involving LED lamps intended to directly replace T8 fluorescent lamps (4') showing light output, power, and economic comparisons with other fluorescent options.

  8. Parking Savings Through LED Project for Iowa City | Department...

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

    grant and rebate from utility. City to save 66,000 annually with energy efficient LED lights in parking garages. Project will reduce energy usage by 1.4 million kWh...

  9. DOE Publishes Fact Sheet on LED Lighting and Health

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy has published a fact sheet that looks at what's known—and not known—about the effects of lighting on human health, with specific reference to LEDs. Entitled Lighting...

  10. Text-Alternative Version: LED Color Stability Webinar

    Broader source: Energy.gov [DOE]

    Michael Royer: All right, welcome ladies and gentleman. I'm Michael Royer of Pacific Northwest National Laboratory, and I'd like to welcome you to today's webinar on LED Color Stability, Ten...

  11. Advances in Chip Technology, Packaging Enable White LED Breakthroughs

    Broader source: Energy.gov [DOE]

    Significant advances in chip technology have enabled Cree, Inc.'s Santa Barbara Technology Center to demonstrate white LEDs with record efficacies as high as 74 lumens per watt - on par with...

  12. EECBG Success Story: Small Nebraska Town Welcomes LEDs and Energy...

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

    Welcomes LEDs and Energy Savings EECBG Success Story: Small Town Using Wind Power to Offset Electricity Costs EECBG Success Story: Out with the Old, In with the New: New ...

  13. Stage 1: Organizing the LEDS Process | Open Energy Information

    Open Energy Info (EERE)

    public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development...

  14. Identify roles and responsibilities for LEDS process | Open Energy...

    Open Energy Info (EERE)

    public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development...

  15. Demonstration Assessment of Light-Emitting Diode (LED) Roadway Lighting

    SciTech Connect (OSTI)

    Kinzey, B. R.; Myer, M. A.

    2009-11-01

    A U.S. Department of Energy Solid-State Lighting Gateway Report on a Demonstration Assessment of Light-Emitting Diode (LED) Roadway Lighting in Lija Loop, Portland, Oregon.

  16. EECBG Success Story: LEDs Ready for Takeoff at Louisiana Airport

    Broader source: Energy.gov [DOE]

    About 250 lights along the taxiway at Hammond Northshore Regional Airport in Louisiana are being replaced with light-emitting diodes (LEDs) with funds from an Energy Efficiency and Conservation Block Grant (EECBG). Learn more.

  17. LED Lights for All Occasions | Department of Energy

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

    What does this mean for me? Energy-efficient LED lights can be used to save money while decorating this holiday season. The topic of lighting is no stranger to the Energy Saver ...

  18. DOE Publishes GATEWAY Report on Portland's LED Streetlight Conversion...

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

    matters, and the Portland Bureau of Transportation was an early investigator of LED street lighting and one of the first public agencies to join DOE's Municipal Solid-State Street ...

  19. LED Watch: A Specifier's Guide to Color-Tunable Lighting

    Energy Savers [EERE]

    ... Some systems LED WATCH A SPECIFIER'S GUIDE TO COLOR-TUNABLE LIGHTING Be sure to check all the boxes when investigating the array of new products L ED luminaires with the ability to ...

  20. Mitchell Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Mitchell Electric Member Corp Place: Georgia Phone Number: Camilla, GA: 229-336-5221; Albany, GA: 229-436-0070, Sylvester, GA: 229-776-3386 Website: mitchellemc.com Facebook:...

  1. Excelsior Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Member Corp Place: Georgia Phone Number: 912-685-2115 Website: www.excelsioremc.com Outage Map: outage.excelsioremc.com:8181 References: EIA Form EIA-861 Final Data File for...

  2. Jackson Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Jackson Electric Member Corp Place: Georgia Phone Number: 1-800-462-3691 Website: www.jacksonemc.com Twitter: @JacksonEMC Facebook: https:www.facebook.comJacksonEMC Outage...

  3. Elastomeric member for energy storage device

    DOE Patents [OSTI]

    Hoppie, Lyle O.; Chute, Richard

    1985-01-01

    An energy storage device (10) is disclosed consisting of a stretched elongated elastomeric member (16), disposed within a tubular housing (14), which elastomeric member (16) is adapted to be torsionally stressed to store energy. The elastomeric member (16) is configured in the relaxed state with a uniform diameter body section, transition end sections, and is attached to rigid end piece assemblies (22, 24) of a lesser diameter. The profile and deflection characteristic of the transition sections (76, 78) are such that upon stretching of the member, a substantially uniform diameter assembly results to minimize the required volume of the surrounding housing (14). During manufacture, woven wire mesh sleeves (26, 28) are forced against a forming surface and bonded to the associated transition section (76, 78) to provide the correct profile and helix angle. Each sleeve (26, 28) contracts with the contraction of the associated transition section to maintain the bond therebetween.

  4. Upson Elec Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Name: Upson Elec Member Corp Place: Georgia Website: www.upsonemc.comUpson%20EMC%2 Facebook: https:www.facebook.comupson.emc Outage Hotline: 706-647-5475 References: EIA...

  5. Haywood Electric Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Member Corp Place: North Carolina Phone Number: 828-452-2281 or 828-966-4215 or toll free at 1-800-951-6088 Website: www.haywoodemc.com Facebook: https:www.facebook.com...

  6. Apparatus for fabricating composite ceramic members

    DOE Patents [OSTI]

    Roy, P.; Simpson, J.L.; Aitken, E.A.

    1975-10-28

    Methods and apparatus for fabrication of composite ceramic members having particular application for measuring oxygen activities in liquid sodium are described. The method involves the simultaneous deposition of ThO$sub 2$: 15 percent Y$sub 2$O$sub 3$ on a sintered stabilized zirconia member by decomposition of gaseous ThCl$sub 4$ and YCl$sub 3$ and by reacting with oxygen gas. Means are provided for establishing an electrical potential gradient across the zirconia member whereby oxygen ions, from a source on one side of the member portion to be coated, are migrated to the opposite side where a reaction and said decomposition and deposition are effected.

  7. Integrated LED-based luminare for general lighting

    DOE Patents [OSTI]

    Dowling, Kevin J.; Lys, Ihor A.; Roberge, Brian; Williamson, Ryan C.; Roberts, Ron; Datta, Michael; Mollnow, Tomas; Morgan, Frederick M.

    2013-03-05

    Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

  8. Integrated LED-based luminaire for general lighting

    DOE Patents [OSTI]

    Dowling, Kevin J.; Lys, Ihor A.; Williamson, Ryan C.; Roberge, Brian; Roberts, Ron; Morgan, Frederick; Datta, Michael Jay; Mollnow, Tomas Jonathan

    2016-08-30

    Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

  9. Federally Led Accident Investigation Reports | Department of Energy

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

    Federally Led Accident Investigation Reports Federally Led Accident Investigation Reports Includes Pre-March 2011 Type A Reports April 21, 2015 Accident Investigations of the February 14, 2014, Radiological Release at the Waste Isolation Pilot Plant, Carlsbad, NM On Friday, February 14, 2014, there was a release of radioactive material in the underground repository at the Department of Energy (DOE) Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. Following initial visual inspections

  10. Get the Facts: LED Street Lighting | Department of Energy

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

    Get the Facts: LED Street Lighting Get the Facts: LED Street Lighting June 21, 2016 - 12:11pm Addthis The American Medical Association's (AMA) recently adopted community guidance on street lighting adds another influential voice to issues that have been discussed in the lighting community for some time now, regarding light at night, its potential impacts on human health and the environment, and how best to minimize those impacts. While the AMA's guidance is intended to reduce the harmful human

  11. Gravitational waves found, black-hole models led the way

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

    Gravitational waves found, black-hole models led the way Gravitational waves found, black-hole models led the way Gravitational waves were predicted by Einstein's theory of general relativity in 1916, and now, almost exactly 100 years later, the faint ripples across space-time have been found. February 11, 2016 A simulation of two merging black holes, creating gravitational waves. Photo courtesy of LIGO. A simulation of two merging black holes, creating gravitational waves. Photo courtesy of

  12. LED Street Lighting Conversion Workshop Presentations | Department of

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

    Department of Energy View the video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory. View the text-alternative version Department of Energy

    Luminaire Lifetime: September 2014 (774.47 KB) More Documents & Publications System Reliability Model for Solid-State Lighting Luminaires LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting Lifetime and

  13. White LED Benchmark of 65 Lumens Per Watt Achieved

    Broader source: Energy.gov [DOE]

    Novel chip design and the balance of multiple interrelated design parameters have enabled Cree, Inc.'s Santa Barbara Technology Center to demonstrate white LEDs with efficacies greater than 65 lumens per watt at 350 mA. The results are particularly significant because they were achieved with a pre-production prototype chip using the same package used in Cree's commercially available XLamp® 7090 high power LED, rather than a laboratory device.

  14. Analysis Led Intake Port Development | Department of Energy

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

    Led Intake Port Development Analysis Led Intake Port Development 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_fuchinoue.pdf (537.33 KB) More Documents & Publications 2015 Peer Review Presentations-Cookstoves Vehicle Technologies Office Merit Review 2016: Lean Miller Cycle System Development for Light-Duty Vehicles High-Load Partially Premixed Combustion in a Heavy-Duty Diesel Engine

  15. Municipal Consortium LED Street Lighting Workshop Presentations and

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

    Materials-Boston, MA | Department of Energy Boston, MA Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Boston, MA This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium Workshop held in Boston August 2-3, 2012. Workshop Agenda DOE Municipal Solid-State Street Lighting Consortium James Brodrick, U.S. Department of Energy Boston's LED Street Lighting Initiative Joanne Massaro, Glenn Cooper, Matthew Mayrl,

  16. LED Site Lighting in the Commercial Building Sector: Opportunities,

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

    Challenges, and the CBEA Performance Specification | Department of Energy Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification This March 26, 2009 webcast presented information about the Commercial Building Energy Alliances' (CBEA) efforts to explore the viability of LED site lighting in commercial parking lots.

  17. An Integrated Solid-State LED Luminaire for General Lighting

    SciTech Connect (OSTI)

    Kevin Dowling; Fritz Morgan Ihor Lys; Mike Datta; Bernd Keller; Thomas Yuan

    2009-03-31

    A strong systems approach to designing and building practical LED-based replacement lamps is lacking. The general method of taking high-performance LEDs and marrying them to standard printed circuit boards, drivers and a heat sink has fallen short of the promise of LED lighting. In this program, a top-down assessment of requirements and a bottom-up reinvention of LED sources, electronics, optics and mechanics have resulted in the highest performance lamp possible. The team, comprised of Color Kinetics, the leaders in LED lighting and Cree, the leaders in LED devices took an approach to reinvent the package, the driver and the overall form and aesthetic of a replacement source. The challenge was to create a new benchmark in LED lighting - the resultant lamp, a PAR38 equivalent, met the light output, color, color quality and efficacy marks set out in the program as well as being dimmable, which is important for market acceptance. The approach combined the use of multiple source die, a chip-on-board approach, a very efficient driver topology, the use of both direct emission and phosphor conversion, and a unique faceted optic to avoid the losses, artifacts and hotspots of lensed approaches. The integral heat sink provided a mechanical base and airflow using a chimney-effect for use in a wide variety of locations and orientations. These research results led to a much better understanding of the system effects of component level technologies. It was clear that best-of-breed sub-system results do not necessarily result in the best end result for the complete system. In doing this work, we did not neglect the practical aspects of these systems. These were not rarified results and commercially impractical but lent themselves to eventual commercial products in the marketplace. The end result - a high performance replacement lamp - will save significant energy while providing a high-quality light source.

  18. Article Published on LED Lumen Maintenance and Light Loss Factors

    Broader source: Energy.gov [DOE]

    An article has been published in LEUKOS: The Journal of the Illuminating Engineering Society of North America (IES) that may be of interest to the solid-state lighting community. Entitled "Lumen Maintenance and Light Loss Factors: Consequences of Current Design Practices for LEDs," the article was written by Michael Royer of Pacific Northwest National Laboratory and discusses complications related to the lamp lumen depreciation (LLD) light loss factor and LEDs.

  19. LLNL Distinguished Members of Technical Staff

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

    honors / dmts awards LLNL Distinguished Members of Technical Staff The Distinguised Members of Technical Staff (DMTS) classification, established in 2011, was created to serve as a career ladder for LLNL scientists and engineers within the Science & Engineering classification structure. It appropriately recognizes outstanding science and technology excellence with distinction and compensation while allowing the honored recipients to remain focused on delivering science and engineering

  20. CMI Team Members | Critical Materials Institute

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

    CMI Team Members CMI is a public/private partnership that brings together the best and brightest research minds from universities, national laboratories and the private sector to find innovative technology solutions that will help avoid a supply shortage that would threaten our clean energy industry as well as our security interests. CMI Team Members have research subcontracts from CMI or are providing cost sharing funds. Requirements include specific research project deliverables within the

  1. Characteristics of oligosaccharides from rat parotid (RP) N-linked glycoproteins (GP) after. beta. -adrenoreceptor (. beta. -AR) stimulation

    SciTech Connect (OSTI)

    Baum, B.J.; Yeh, C.K.; Kousvelari, E.E.

    1987-05-01

    The authors have shown that ..beta..-AR stimulation of RP cells leads to marked enhancement of N-linked glycosylation in 4 secretory GP (Mrapprox.220Kd, HMW;approx.32-38Kd, MMW;approx.17Kd, LMW). To characterize oligosaccharides in GP, cells were incubated 60 min +/- isoproterenol (ISO) and analyzed 2 ways. First, cell extracts were subjected to SDS-PAGE and Western blotting with peroxidase-conjugated Con A or wheat germ agglutinin (WGA). Second, double-labeled (/sup 3/H) man//sup 14/C leu) extracts were chromatographed on G200 followed by analysis of GP on Con A-Sepharose. HMW from control (CON) and ISO cells were Endo H insensitive, Endo F sensitive, altered by incubation with deoxynojirimycin (dNM), and bound both Con A and WGA conjugates. Similar findings were observed with LMW while MMW were sensitive to Endo H and Endo F, unaffected by dNM, bound Con A (strongly) and WGA (weakly). MMW and LMW were primarily eluted from Con A-Sepharose with 0.5M ..cap alpha..-methyl mannoside (..cap alpha..-MM) while HMW were eluted sequentially with 10 mM ..cap alpha..-methyl glucoside and ..cap alpha..-MM. HMW, MMW, and LMW had approx.4 fold higher /sup 3/H//sup 14/C ratios after ISO. These results suggest HMW and LMW likely contain biantennary complex and hybrid oligosaccharides while MMW contain only high mannose oligosaccharide types.

  2. Color Maintenance of LEDs in Laboratory and Field Applications

    SciTech Connect (OSTI)

    Royer, Michael P.; Tuttle, Ralph; Rosenfeld, Scott M.; Miller, Naomi J.

    2013-09-30

    Synopsis: To date, consideration for parametric failure of LED products has largely been focused on lumen maintenance. However, color shift is a cause of early failure for some products, and is especially important to consider in certain applications, like museums, where visual appearance is critical. Example data collected by the GATEWAY program for LED lamps installed in museums shows that many have changed color beyond a reasonable tolerance well before their rated lifetime was reached, necessitating replacement. Similar data collected by the CALiPER program between 2008 and 2010 reveals that many early products shifted beyond acceptable tolerances in as little as a few thousand hours. In contrast, data from the L Prize program illustrates that commercially available LED products can have exemplary color stability that is unmatched by traditional light sources. Beyond presenting data from the aforementioned DOE programs, this report discusses the metrics used for communicating color shift—namely MacAdam ellipses and Δu'v'—as well as providing guidance for end users on how to monitor color shift and what to look for in manufacturer warranties. Also included are descriptions of the physical changes that have been documented as leading to color shift in some example types of LED packages. As with complete products, the data presented herein for LED packages shows that a wide variety of products are available; in order for specifiers and consumers to make educated choices, more detailed and standardized information should be made available.

  3. Highly Efficient Small Form Factor LED Retrofit Lamp

    SciTech Connect (OSTI)

    Steven Allen; Fred Palmer; Ming Li

    2011-09-11

    This report summarizes work to develop a high efficiency LED-based MR16 lamp downlight at OSRAM SYLVANIA under US Department of Energy contract DE-EE0000611. A new multichip LED package, electronic driver, and reflector optic were developed for these lamps. At steady-state, the lamp luminous flux was 409 lumens (lm), luminous efficacy of 87 lumens per watt (LPW), CRI (Ra) of 87, and R9 of 85 at a correlated color temperature (CCT) of 3285K. The LED alone achieved 120 lumens per watt efficacy and 600 lumen flux output at 25 C. The driver had 90% electrical conversion efficiency while maintaining excellent power quality with power factor >0.90 at a power of only 5 watts. Compared to similar existing MR16 lamps using LED sources, these lamps had much higher efficacy and color quality. The objective of this work was to demonstrate a LED-based MR16 retrofit lamp for replacement of 35W halogen MR16 lamps having (1) luminous flux of 500 lumens, (2) luminous efficacy of 100 lumens per watt, (3) beam angle less than 40{sup o} and center beam candlepower of at least 1000 candelas, and (4) excellent color quality.

  4. LED Lighting: Applying Lessons Learned from the CFL Experience

    SciTech Connect (OSTI)

    McCullough, Jeffrey J.; Gilbride, Theresa L.; Gordon, Kelly L.; Ledbetter, Marc R.; Sandahl, Linda J.; Ton, My K.

    2008-08-20

    Light emitting diode (LED) technology has emerged as an exciting new lighting alternative with the potential for significant energy savings. There is concern, however, that white light LEDs for general illumination could take a long, bumpy course similar to another energy-efficient lighting technology – compact fluorescent lights (CFLs). Recognizing the significant potential energy-efficient lighting has to reduce U.S. energy consumption, Congress mandated in the Energy Policy Act of 2005 that the U.S. Department of Energy (DOE) develop Solid State Lighting (SSL) through a Next Generation Lighting Initiative. DOE’s first step was to analyze the market introduction of compact fluorescent lighting to determine what lessons could be learned to smooth the introduction of SSL in the United States (Sandahl et al. 2006). This paper summarizes applicable lessons learned from the market introduction of CFLs and describe how DOE and others are applying those lessons to speed the development and market introduction of energy-efficient LED lighting for general illumination applications. A description of the current state of LED technology and compares LEDs to incandescent, fluorescent, and halogen lights is also provided.

  5. Tests gauge LED sensors for fuel-dye measurements

    SciTech Connect (OSTI)

    Ozanich, Richard M.; Lucke, Richard B.; Melville, Angela M.; Wright, Bob W.

    2009-10-19

    The goal of this work was to develop a low cost, robust sensor to allow direct measurement of Solvent Red 164 dye concentration in off-road fuel at refineries and fuel terminals. Optical absorption sensors based on light emitting diodes (LEDs) are rugged, low-cost, have low power consumption, and can be designed to be intrinsically safe.LED-based systems have been used in a variety of chemical detection applications including heavy metals, pH, CO2, and O2. The approach for this work was to develop a sensor that could be mounted on a pipeline sight glass, precluding the need for direct contact of the sensor with the fuel. Below is described the design and testing of three different LED/photodiode sensors utilizing reflectance spectrometry for the measurement of dye concentration.

  6. LED Surgical Task Lighting Scoping Study: A Hospital Energy Alliance Project

    SciTech Connect (OSTI)

    Tuenge, Jason R.

    2011-01-17

    Tungsten-halogen (halogen) lamps have traditionally been used to light surgical tasks in hospitals, even though they are in many respects ill-suited to the application due to the large percentage of radiant energy outside the visible spectrum and issues with color rendering/quality. Light-emitting diode (LED) technology offers potential for adjustable color and improved color rendition/quality, while simultaneously reducing side-effects from non-visible radiant energy. It also has the potential for significant energy savings, although this is a fairly narrow application in the larger commercial building energy use sector. Based on analysis of available products and Hospital Energy Alliance member interest, it is recommended that a product specification and field measurement procedure be developed for implementation in demonstration projects.

  7. LED Down-Converter Phosphor Chips Containing Nanocrystals | Department of

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

    April 15, 2014 webinar examined the causes of color shift, and took a look at existing metrics used to describe color shift/color stability in LED lighting. The lumen maintenance lifetime of many LED products is 25,000 hours or more, but that doesn't mean products are guaranteed to perform the same over that time. One thing that could change is the color of the light, or chromaticity. Presenters Michael Royer of Pacific Northwest National Laboratory, Ralph Tuttle of Cree, and Chad Stalker of

  8. LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy

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

    LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! November 23, 2010 - 6:30am Addthis Allison Casey Senior Communicator, NREL This week brings a day that many people look forward to all year-and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the basement or attic, to lovingly sort and display your decorations, to untangle your light strings and set up the

  9. Service Members Aim High-- for Energy Savings

    Broader source: Energy.gov [DOE]

    Service members are helping reduce our dependency on oil, and saving taxpayers' money, with their energy-saving efforts. Operation Change Out has cut $26.3 million in total energy costs and helped prevent more than 396 lbs. of carbon dioxide.

  10. Elastomeric member and method of manufacture therefor

    DOE Patents [OSTI]

    Hoppie, Lyle O.

    1985-01-01

    An energy storage device (10) is disclosed consisting of a stretched elongated elastomeric member (16) disposed within a tubular housing (14), which elastomeric member (16) is adapted to be torsionally stressed to store energy. The elastomeric member (16) is configured in the relaxed state with a uniform diameter body section (74), and transition end sections (76, 78), attached to rigid end piece assemblies (22, 24) of a lesser diameter. The profile and deflection characteristic of the transition sections (76, 78) are such that upon stretching of the elastomeric member (16), a substantially uniform diameter assembly results, to minimize the required volume of the surrounding housing (14). Each of the transition sections (76, 78) are received within and bonded to a woven wire mesh sleeve (26, 28) having helical windings at a particular helix angle to control the deflection of the transition section. Each sleeve (26, 28) also contracts with the contraction of the associated transition section to maintain the bond therebetween. During manufacture, the sleeves (26, 28) are forced against a forming surface and bonded to the associated transition section (76, 78) to provide the correct profile and helix angle.

  11. Elastomeric member and method of manufacture therefor

    DOE Patents [OSTI]

    Hoppie, L.O.

    1985-12-10

    An energy storage device is disclosed consisting of a stretched elongated elastomeric member disposed within a tubular housing, which elastomeric member is adapted to be torsionally stressed to store energy. The elastomeric member is configured in the relaxed state with a uniform diameter body section, and transition end sections, attached to rigid end piece assemblies of a lesser diameter. The profile and deflection characteristic of the transition sections are such that upon stretching of the elastomeric member, a substantially uniform diameter assembly results, to minimize the required volume of the surrounding housing. Each of the transition sections are received within and bonded to a woven wire mesh sleeve having helical windings at a particular helix angle to control the deflection of the transition section. Each sleeve also contracts with the contraction of the associated transition section to maintain the bond therebetween. During manufacture, the sleeves are forced against a forming surface and bonded to the associated transition section to provide the correct profile and helix angle. 12 figs.

  12. CALiPER Application Summary Report 15. LED Floodlights

    SciTech Connect (OSTI)

    none,

    2012-05-01

    This report analyzes the independently tested performance of 10 LED floodlights purchased between August and December 2011. The group included a wide range of products, both physically and in performance characteristics, which mirrors the nearly indefinite range of conventional luminaires designated as floodlights.

  13. Small Nebraska Town Welcomes LEDs and Energy Savings

    Broader source: Energy.gov [DOE]

    Tecumseh’s town historic town square is home to the city hall, courthouse, post office, and during the summer months—a farmers market. Now, this historic square, built in the 1850’s, is about to become home to something new: LED lights.

  14. Small Area Array-Based LED Luminaire Design

    SciTech Connect (OSTI)

    Thomas Yuan

    2008-01-09

    This report contains a summary of technical achievements during a three-year project to demonstrate high efficiency LED luminaire designs based on small area array-based gallium nitride diodes. Novel GaN-based LED array designs are described, specifically addressing the thermal, optical, electrical and mechanical requirements for the incorporation of such arrays into viable solid-state LED luminaires. This work resulted in the demonstration of an integrated luminaire prototype of 1000 lumens cool white light output with reflector shaped beams and efficacy of 89.4 lm/W at CCT of 6000oK and CRI of 73; and performance of 903 lumens warm white light output with reflector shaped beams and efficacy of 63.0 lm/W at CCT of 2800oK and CRI of 82. In addition, up to 1275 lumens cool white light output at 114.2 lm/W and 1156 lumens warm white light output at 76.5 lm/W were achieved if the reflector was not used. The success to integrate small area array-based LED designs and address thermal, optical, electrical and mechanical requirements was clearly achieved in these luminaire prototypes with outstanding performance and high efficiency.

  15. Ultratech Develops an Improved Lithography Tool for LED Wafer Manufacturing

    Broader source: Energy.gov [DOE]

    Ultratech modified an existing lithography tool used for semiconductor manufacturing to better meet the cost and performance targets of the high-brightness LED manufacturing industry. The goal was to make the equipment compatible with the wide range of substrate diameters and thicknesses prevalent in the industry while reducing the capital cost and the overall cost of ownership (COO).

  16. 130 LPW 1000 Lm Warm White LED for Illumination

    SciTech Connect (OSTI)

    Soer, Wouter

    2012-06-14

    An illumination-grade warm-white LED, having correlated color temperature (CCT) between 2700 and 3500 K and capable of producing 1000 lm output at over 130 lm/W at room temperature, has been developed in this program. The high-power warm-white LED is an ideal source for use in indoor and outdoor lighting applications. Over the two year period, we have made the following accomplishments: • Developed a low-cost high-power white LED package and commercialized a series of products with CCT ranging from 2700 to 5700 K under the product name LUXEON M; • Demonstrated a record efficacy of 124.8 lm/W at a flux of 1023 lm, CCT of 3435 K and color rendering index (CRI) over 80 at room temperature in the productized package; • Demonstrated a record efficacy of 133.1 lm/W at a flux of 1015 lm, CCT of 3475 K and CRI over 80 at room temperature in an R&D package. The new high-power LED package is a die-on-ceramic surface mountable LED package. It has four 2 mm2 InGaN pump dice, flip-chip attached to a ceramic submount in a 2x2 array configuration. The submount design utilizes a design approach that combines a high-thermal- conductivity ceramic core for die attach and a low-cost and low-thermal-conductivity ceramic frame for mechanical support and as optical lens carrier. The LED package has a thermal resistance of less than 1.25 K/W. The white LED fabrication also adopts a new batch level (instead of die-by-die) phosphor deposition process with precision layer thickness and composition control, which provides not only tight color control, but also low cost. The efficacy performance goal was achieved through the progress in following key areas: (1) high-efficiency royal blue pump LED development through active region design and epitaxial growth quality improvement (funded by internal programs); (2) improvement in extraction efficiency from the LED package through improvement of InGaN-die-level and package-level optical extraction efficiency; and (3) improvement in phosphor

  17. URTAC Committee Members, 2007-2008 | Department of Energy

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

    Committee Members, 2007-2008 URTAC Committee Members, 2007-2008 URTAC Committee Members, 2007-2008 (23.49 KB) More Documents & Publications Recommendations: 2007 Annual Plan URTAC Meeting - June 2007 Recommendations: 2008

  18. Previous Members | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Previous ASCAC Members Advanced Scientific Computing Advisory Committee (ASCAC) ASCAC Home Meetings Members ASCAC Members Bio Previous ASCAC Members Charges/Reports ASCAC Charter 2015 - signed .pdf file (134KB) ASCR Committees of Visitors Federal Advisory Committees ASCR Home Members Previous ASCAC Members Print Text Size: A A A FeedbackShare Page Dr. F. Ronald Bailey Computer Sciences Corp. 591 Branciforte Ridge Santa Cruz, CA 95065 Dr. Horst D. Simon Director, Computational Research Division

  19. Members | U.S. DOE Office of Science (SC)

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

    Members Fusion Energy Sciences Advisory Committee (FESAC) FESAC Home Meetings Members Charges/Reports Charter .pdf file (266KB) FES Committees of Visitors Federal Advisory Committees FES Home Members Print Text Size: A A A FeedbackShare Page Committee Members .pdf file (196KB) are drawn from universities, national laboratories, and industrial companies. Members serve three-year terms and may be reappointed to serve multiple terms. Because members are appointed as experts in specific fields, it

  20. Ultra-Deepwater Advisory Committee Members | Department of Energy

    Energy Savers [EERE]

    Ultra-Deepwater Advisory Committee Members 2013-2014 Ultra-Deepwater Advisory Committee Members Dr. George A. Cooper* Professor University of California, Berkeley Dr. Quenton R. ...

  1. Nothing But Networking for Residential Network Members | Department...

    Energy Savers [EERE]

    Nothing But Networking for Residential Network Members Nothing But Networking for Residential Network Members Better Buildings Residential Network Peer Exchange Call: Nothing But ...

  2. Global Nuclear Energy Partnership Steering Group Members Approve...

    Office of Environmental Management (EM)

    Steering Group Members Approve Transformation to the International Framework for Nuclear Energy Cooperation Global Nuclear Energy Partnership Steering Group Members Approve ...

  3. Energy Secretary Moniz, Senator Alexander, other Members of Congress...

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

    Moniz, Senator Alexander, other Members of Congress to Make Major Investment Announcement Energy Secretary Moniz, Senator Alexander, other Members of Congress to Make Major ...

  4. Residential Network Members Unite to Form Green Bank Network...

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

    The NY Green Bank logo. Residential Network members Connecticut Green Bank and NY Green Bank, a division of Residential Network member New York State Energy Research and ...

  5. Demonstration Assessment of Light-Emitting Diode (LED) Roadway Lighting at the I-35W Bridge, Minneapolis, MN

    SciTech Connect (OSTI)

    Kinzey, Bruce R.; Myer, Michael

    2009-08-31

    This report describes the process and results of a demonstration of solid-state lighting (SSL) technology conducted in 2009 at the recently reconstructed I-35W bridge in Minneapolis, MN. The project was supported under the U.S. Department of Energy (DOE) Solid-State Lighting GATEWAY Technology Demonstration Program. Other participants in the demonstration project included the Minnesota Department of Transportation (Mn/DOT), Federal Highways Administration (FHWA), and BetaLED™ (a division of Ruud Lighting). Pacific Northwest National Laboratory (PNNL) conducted the measurements and analysis of the results. DOE has implemented a three-year evaluation of the LED luminaires in this installation in order to develop new longitudinal field data on LED performance in a challenging, real-world environment. This document provides information through the initial phase of the I-35W bridge project, up to and including the opening of the bridge to the public and the initial feedback received on the LED lighting installation from bridge users. Initial findings of the evaluation are favorable, with minimum energy savings level of 13% for the LED installation relative to the simulated base case using 250W high-pressure sodium (HPS) fixtures. The LEDs had an average illuminance level of 0.91 foot candles compared to 1.29 fc for the HPS lamps. The LED luminaires cost $38,000 more than HPS lamps, yielding a lengthy payback period, however the bridge contractor had offered to include the LED luminaires as part of the construction package at no additional cost. One potentially significant benefit of the LEDs in this installation is avoiding rolling lane closures on the heavily-traveled interstate bridge for the purpose of relamping the HPS fixtures. Rolling lane closures involve multiple crew members and various maintenance and safety vehicles, diversion of traffic, as well as related administrative tasks (e.g., approvals, scheduling, etc.). Mn/DOT records show an average cost of

  6. KLA-Tencor's Inspection Tool Reduces LED Manufacturing Costs

    Broader source: Energy.gov [DOE]

    With the help of DOE funding, KLA-Tencor is developing an improved inspection tool for LED manufacturing that promises to significantly increase overall process yields and minimize expensive waste. The power of the inspection tool lies in optical detection techniques coupled with defect source analysis software to statistically correlate front-end geometric anomalies in the substrate to killer defects on the back end of the manufacturing line, which give rise to an undesirable or unusable end product.

  7. Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA

    SciTech Connect (OSTI)

    Royer, Michael P.; Tuenge, Jason R.; Poplawski, Michael E.

    2012-09-01

    For this demonstration assessment, 10 different groups of LED luminaires were installed at three sites in Philadelphia, PA. Each of the three sites represented a different set of conditions, most importantly with regard to the incumbent HPS luminaires, which were nominally 100 W, 150 W, and 250 W. The performance of each product was evaluated based on manufacturer data, illuminance calculations, field measurements of illuminance, and the subjective impressions of both regular and expert observers.

  8. OSRAM SYLVANIA Develops High-Efficiency LED Troffer Replacement

    Broader source: Energy.gov [DOE]

    With the help of DOE funding, OSRAM SYLVANIA is developing a high-efficiency LED 2'x2' troffer replacement that is expected to be commercially available in the spring of 2012 and to be cost-competitive with existing troffers of that size. It is projected to have a light output of up to 4,000 lumens, an efficacy of more than 100 lm/W, and a CCT of 3500K.

  9. Report 22.1: Photoelectric Performance of LED MR16 Lamps | Department of

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

    Energy 2.1: Photoelectric Performance of LED MR16 Lamps Report 22.1: Photoelectric Performance of LED MR16 Lamps caliper_22-1_mr16.pdf (4.52 MB) More Documents & Publications LED MR16 Lamps Caliper Retail Lamps Study 3.1: Dimming, Flicker, and Power Quality Characteristics of LED A Lamps LED Directional

  10. Demonstration of LED Street Lighting in Kansas City, MO

    SciTech Connect (OSTI)

    Kinzey, Bruce R.; Royer, Michael P.; Hadjian, M.; Kauffman, Rick

    2013-06-10

    Nine different streetlighting products were installed on various streets in Kansas City, Missouri during February, 2011, to evaluate their performance relative to the incumbent high-pressure sodium (HPS) lighting. The applications investigated included 100 W, 150 W, 250 W, and 400 W HPS installations. Initial measurements and comparisons included power, illuminance, and luminance; sample illuminance readings have continued at each of the nine locations at roughly 1,000-hour operating intervals since then. All of the LED products consumed less power than their HPS counterparts—with a mean difference of 39% and a range of 31% to 51%—but they also emitted 31% fewer lumens, on average. The net result is just a 15% increase in mean efficacy. Applying the city’s stringent light loss factors to the initial measured data meant that five of the LED products (and two of the HPS luminaires) were predicted to eventually fail to meet the specified mean illuminance over their lifetimes; however, the specified light loss levels are not expected to be reached by the LED products until some distant future date (between 12 and 30 years after installation according to manufacturer specification sheet estimates). The practical value of designing streetlighting systems to meet illumination requirements more than 15 years in the future is questioned. Numerous sources of variation in field measurements are noted throughout the report, particularly seasonal influences such as ambient temperature and foliage that are evident in the time-series illuminance data.

  11. Structure of the HIV-1 gp41 Membrane-Proximal Ectodomain Region in a Putative Prefusion Conformation

    SciTech Connect (OSTI)

    Liu, J.; Deng, Y; Dey, A; Moore, J; Lu, M

    2009-01-01

    The conserved membrane-proximal external region (MPER) of the HIV-1 gp41 envelope protein is the established target for very rare but broadly neutralizing monoclonal antibodies (NAbs) elicited during natural human infection. Nevertheless, attempts to generate an HIV-1 neutralizing antibody response with immunogens bearing MPER epitopes have met with limited success. Here we show that the MPER peptide (residues 662-683) forms a labile ?-helical trimer in aqueous solution and report the crystal structure of this autonomous folding subdomain stabilized by addition of a C-terminal isoleucine zipper motif. The structure reveals a parallel triple-stranded coiled coil in which the neutralization epitope residues are buried within the interface between the associating MPER helices. Accordingly, both the 2F5 and 4E10 NAbs recognize the isolated MPER peptide but fail to bind the trimeric MPER subdomain. We propose that the trimeric MPER structure represents the prefusion conformation of gp41, preceding the putative prehairpin intermediate and the postfusion trimer-of-hairpins structure. As such, the MPER trimer should inform the design of new HIV-1 immunogens to elicit broadly neutralizing antibodies.

  12. Application Summary Report 22: LED MR16 Lamps

    SciTech Connect (OSTI)

    Royer, Michael P.

    2014-07-23

    This report analyzes the independently tested photometric performance of 27 LED MR16 lamps. It describes initial performance based on light output, efficacy, distribution, color quality, electrical characteristics, and form factor, with comparisons to a selection of benchmark halogen MR16s and ENERGY STAR qualification thresholds. Three types of products were targeted. First, CALiPER sought 3000 K lamps with the highest rated lumen output (i.e., at least 500 lm) or a claim of equivalency to a 50 W halogen MR16 or higher. The test results indicate that while the initial performance of LED MR16s has improved across the board, market-available products still do not produce the lumen output and center beam intensity of typical 50 W halogen MR16 lamps. In fact, most of the 18 lamps in this category had lower lumen output and center beam intensity than a typical 35 W halogen MR16 lamp. Second, CALiPER sought lamps with a CRI of 90 or greater. Only four manufacturers were identified with a product in this category. CALiPER testing confirmed the performance of these lamps, which are a good option for applications where high color fidelity is needed. A vast majority of the LED MR16 lamps have a CRI in the low 80s; this is generally acceptable for ambient lighting, but may not always be acceptable for focal lighting. For typical LED packages, there is a fundamental tradeoff between CRI and efficacy, but the lamps in the high-CRI group in this report still offer comparable performance to the rest of the Series 22 products in other performance areas. Finally, CALiPER sought lamps with a narrow distribution, denoted as a beam angle less than 15°. Five such lamps were purchased. Notably, no lamp was identified as having high lumen output (500 lumens or greater), high CRI (90 or greater), a narrow distribution (15° or less), and an efficacy greater than 60 lm/W. This would be an important achievement for LED MR16s especially if output could reach approximately 700 800 lumens

  13. Waste Management Committee Member Roster | Department of Energy

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

    Member Roster Waste Management Committee Member Roster List of the NNMCAB members that serve on the Waste Management Committee WM Roster - June 2016 (278.02 KB) More Documents & Publications Environmental Management and Remediation Committee Roster Executive Committee Member Roster NNMCAB Membership Roster

  14. CESA-2010-Members-Report.pdf | Department of Energy

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

    2010-Members-Report.pdf CESA-2010-Members-Report.pdf CESA-2010-Members-Report.pdf CESA-2010-Members-Report.pdf (2.66 MB) More Documents & Publications Connecticut Fuel Cell Programs - From Demonstration to Deployment CESA-fuelcell-advancing-state-policies2010.pdf Clean Energy State Program Guide: Mainstreaming Solar Electricity Strategies for States to Build Local Markets

  15. LED Lighting Facts® Program Supports Accuracy in SSL Product Information

    SciTech Connect (OSTI)

    2013-09-30

    Fact sheet that provides a summary of LED Lighting Facts, a program to assure that LED lighting is accurately represented in the marketplace, illustrated by the LED Lighting Facts label to disclose product performance data.

  16. New CALiPER Snapshot on LED Downlights | Department of Energy

    Office of Environmental Management (EM)

    New CALiPER Snapshot on LED Downlights New CALiPER Snapshot on LED Downlights June 29, 2016 - 12:56pm Addthis DOE's CALiPER program has released a new Snapshot report on LED ...

  17. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Part 2: LED Manufacturing and Performance

    SciTech Connect (OSTI)

    Scholand, Michael; Dillon, Heather E.

    2012-05-01

    Part 2 of the project (this report) uses the conclusions from Part 1 as a point of departure to focus on two objectives: producing a more detailed and conservative assessment of the manufacturing process and providing a comparative LCA with other lighting products based on the improved manufacturing analysis and taking into consideration a wider range of environmental impacts. In this study, we first analyzed the manufacturing process for a white-light LED (based on a sapphire-substrate, blue-light, gallium-nitride LED pumping a yellow phosphor), to understand the impacts of the manufacturing process. We then conducted a comparative LCA, looking at the impacts associated with the Philips Master LEDbulb and comparing those to a CFL and an incandescent lamp. The comparison took into account the Philips Master LEDbulb as it is now in 2012 and then projected forward what it might be in 2017, accounting for some of the anticipated improvements in LED manufacturing, performance and driver electronics.

  18. Bioinformatic analysis of neurotropic HIV envelope sequences identifies polymorphisms in the gp120 bridging sheet that increase macrophage-tropism through enhanced interactions with CCR5

    SciTech Connect (OSTI)

    Mefford, Megan E.; Kunstman, Kevin; Wolinsky, Steven M.; Gabuzda, Dana

    2015-07-15

    Macrophages express low levels of the CD4 receptor compared to T-cells. Macrophage-tropic HIV strains replicating in brain of untreated patients with HIV-associated dementia (HAD) express Envs that are adapted to overcome this restriction through mechanisms that are poorly understood. Here, bioinformatic analysis of env sequence datasets together with functional studies identified polymorphisms in the β3 strand of the HIV gp120 bridging sheet that increase M-tropism. D197, which results in loss of an N-glycan located near the HIV Env trimer apex, was detected in brain in some HAD patients, while position 200 was estimated to be under positive selection. D197 and T/V200 increased fusion and infection of cells expressing low CD4 by enhancing gp120 binding to CCR5. These results identify polymorphisms in the HIV gp120 bridging sheet that overcome the restriction to macrophage infection imposed by low CD4 through enhanced gp120–CCR5 interactions, thereby promoting infection of brain and other macrophage-rich tissues. - Highlights: • We analyze HIV Env sequences and identify amino acids in beta 3 of the gp120 bridging sheet that enhance macrophage tropism. • These amino acids at positions 197 and 200 are present in brain of some patients with HIV-associated dementia. • D197 results in loss of a glycan near the HIV Env trimer apex, which may increase exposure of V3. • These variants may promote infection of macrophages in the brain by enhancing gp120–CCR5 interactions.

  19. Members | U.S. DOE Office of Science (SC)

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

    Members Advanced Scientific Computing Advisory Committee (ASCAC) ASCAC Home Meetings Members ASCAC Members Bio Previous ASCAC Members Charges/Reports ASCAC Charter 2015 - signed .pdf file (134KB) ASCR Committees of Visitors Federal Advisory Committees ASCR Home Members Print Text Size: A A A FeedbackShare Page Professor Daniel A. Reed, Chair Office of the Vice President for Research and Economic Development University of Iowa 2660 UCC Iowa City, IA 52242 dan-reed@uiowa.edu 319-335-2119 (phone)

  20. Feedback-Controlled LED Photobioreactor for Photophysiological Studies of Cyanobacteria

    SciTech Connect (OSTI)

    Melnicki, Matthew R.; Pinchuk, Grigoriy E.; Hill, Eric A.; Kucek, Leo A.; Stolyar, Sergey; Fredrickson, Jim K.; Konopka, Allan; Beliaev, Alex S.

    2013-04-09

    A custom photobioreactor (PBR) was designed to enable automatic light adjustments using computerized feedback control. A black anodized aluminum enclosure, constructed to surround the borosilicate reactor vessel, prevents the transmission of ambient light and serves as a mount for arrays of light-emitting diodes (LEDs). The high-output LEDs provide narrow-band light of either 630 or 680 nm for preferential excitation of the cyanobacterial light-harvesting pigments, phycobilin or chlorophyll a, respectively. Custom developed software BioLume provides automatic control of optical properties and a computer feedback loop can automatically adjust the incident irradiance as necessary to maintain a fixed transmitted light through the culture, based on user-determined set points. This feedback control serves to compensate for culture dynamics which have optical effects, (e.g., changing cell density, pigment adaptations) and thus can determine the appropriate light conditions for physiological comparisons or to cultivate light-sensitive strains, without prior analyses. The LED PBR may also be controlled as a turbidostat, using a feedback loop to continuously adjust the rate of media-dilution based on the transmitted light measurements, with a fast and precise response. This cultivation system gains further merit as a high-performance analytical device, using non-invasive tools (e.g., dissolved gas sensors, online mass spectrometry) to automate real-time measurements, thus permitting unsupervised experiments to search for optimal growth conditions, to monitor physiological responses to perturbations, as well as to quantitate photophysiological parameters using an in situ light-saturation response routine.

  1. DOE Publishes New Report on Dimming LEDs with Phase-Cut Dimmers...

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

    by energy efficiency organizations and specifiers, and is ... The new report reviews how phase-cut dimmers work, how LEDs ... procedures for designing phase-controlled LED ...

  2. DOE Publishes CALiPER Report on LED T8 Lamps | Department of...

    Energy Savers [EERE]

    Likewise, some of the LED lamps had similar color quality and power quality to their fluorescent counterparts. But none of the LED products matched the luminous intensity ...

  3. Shenzhen Bang Bell Electronics Co Ltd BBE LED | Open Energy Informatio...

    Open Energy Info (EERE)

    Bang Bell Electronics Co Ltd BBE LED Jump to: navigation, search Name: Shenzhen Bang-Bell Electronics Co Ltd (BBE LED) Place: Shenzhen, Guangdong Province, China Zip: 518110...

  4. Use of Occupancy Sensors in LED Parking Lot and Garage Applications...

    Office of Scientific and Technical Information (OSTI)

    Experiences Kinzey, Bruce R.; Myer, Michael; Royer, Michael P.; Sullivan, Greg P. LED lighting; parking lot lighting; occupancy sensors LED lighting; parking lot lighting;...

  5. Demonstration Assessment of Light Emitting Diode (LED) Street Lighting, Final Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report summarizes an LED street lighting assessment project conducted to study the applicability of LED luminaires in a street lighting application.

  6. Orienting members in a preselected rotary alignment

    DOE Patents [OSTI]

    Williams, Ray E.

    1987-01-01

    An apparatus for orienting members and for maintaining their rotary alignment during orienting members. The apparatus comprises first and second cylindrical elements, a rotation prevention element, a collar and a retainer. Each element has an outside wall, and first and second ends, each end having an outside edge. The first element has portions defining a first plurality of notches located at the outside edge of its first end. An external threaded portion is on the outside wall of the first element and next to the first plurality of notches. The second element has portions defining a second plurality of notches located at the outside edge of its first end. The first plurality has a different number than the second plurality. The first ends of the first and second tubes have substantially the same outside diameter and are abutted during connection so that a cavity is formed whenever first and second tube notches substantially overlap. A rotation prevention element is placed in the cavity to prevent rotation of the first and second elements. A collar with an internal threaded portion is slidably disposed about the second element. The internal threaded portion engages the external threaded portion of the first element to connect the elements. A lip connected to the collar prevents separation of the collar from the second element.

  7. Multiple capillary biochemical analyzer with barrier member

    DOE Patents [OSTI]

    Dovichi, Norman J.; Zhang, Jian Z.

    1996-01-01

    A multiple capillary biochemical analyzer for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal to noise ratio.

  8. Multiple capillary biochemical analyzer with barrier member

    DOE Patents [OSTI]

    Dovichi, N.J.; Zhang, J.Z.

    1996-10-22

    A multiple capillary biochemical analyzer is disclosed for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal-to-noise ratio. 12 figs.

  9. DOE CALiPER Program, Report 20.1 Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps

    SciTech Connect (OSTI)

    Royer, Michael P.; Poplawski, Michael E.; Miller, Naomi J.

    2013-10-01

    This report focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality. Using a questionnaire that included rank ordering, opinions on 27 of the Report 20 PAR38 lamps were gathered during a demonstration event for members of the local Illuminating Engineering Society (IES) chapter. This was not a rigorous scientific experiment, and the data should not be extrapolated beyond the scope of the demonstration. The results suggest that many of the LED products compared favorably to halogen PAR38 benchmarks in all attributes considered. LED lamps using a single-emitter design were generally preferred for their beam quality and shadow quality, and the IES members ranking of color quality did not always match the rank according to the color rendering index (CRI).

  10. CALiPER Report 20.1: Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps

    SciTech Connect (OSTI)

    None, None

    2013-11-07

    This report focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality. Using a questionnaire that included rank-ordering, opinions on 27 of the Report 20 PAR38 lamps were gathered during a demonstration event for members of the local Illuminating Engineering Society (IES) chapter. This was not a rigorous scientific experiment, and the data should not be extrapolated beyond the scope of the demonstration. The results suggest that many of the LED products compared favorably to halogen PAR38 benchmarks in all attributes considered. LED lamps using a single-emitter design were generally preferred for their beam quality and shadow quality, and the IES members' ranking of color quality did not always match the rank according to the color rendering index (CRI).

  11. Method for electrically isolating an electrically conductive member from another such member

    DOE Patents [OSTI]

    Tsang, K.L.; Chen, Y.

    1984-02-09

    The invention relates to methods for electrically isolating a first electrically conductive member from another such member by means of an electrically insulating medium. In accordance with the invention, the insulating medium is provided in the form of MgO which contains a dopant selected from lithium, copper, cobalt, sodium, silver, gold and hydrogen. The dopant is present in the MgO in an amount effective to suppress dielectric breakdown of the MgO, even at elevated temperatures and in the presence of electrical fields.

  12. APPARATUS FOR NON-DESTRUCTIVE INSPECTION OF CANTILEVERED MEMBERS

    DOE Patents [OSTI]

    Taylor, E.R.; Mahoney, C.H.; Lay, C.R.

    1961-10-24

    An apparatus for non-destructive inspection of cantilevered members, such as compressor blades, is described. The member under inspection is vibrated with a regulated source of air under pressure. The amplitude of vibration of the member is maintained at its natural frequency. The frequency of vibration of the member is measured. An indication of an excessive decay or erratic shifting in the measured frequency above an allowable hysteretic decay is provided as an indication of a fault in the member. The member is vibrated for a selected test period. (AEC)

  13. Global Nuclear Energy Partnership Triples in Size to 16 Members...

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

    Global Nuclear Energy Partnership Triples in Size to 16 Members Global Nuclear Energy Partnership Triples in Size to 16 Members September 16, 2007 - 2:33pm Addthis Nations Sign On...

  14. Carteret-Craven El Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Carteret-Craven El Member Corp Jump to: navigation, search Name: Carteret-Craven El Member Corp Place: North Carolina Phone Number: 252.247.3107 or 1.800.682.2217 Website:...

  15. Snapping Shoals El Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Snapping Shoals El Member Corp Jump to: navigation, search Name: Snapping Shoals El Member Corp Place: Georgia Phone Number: 770-786-3484 Website: www.ssemc.com Twitter:...

  16. Niobrara Valley El Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Member Corp Jump to: navigation, search Name: Niobrara Valley El Member Corp Place: Nebraska Phone Number: 402.336.2803 Website: nvemc.org Outage Hotline: (402) 336-2803 or (800)...

  17. Panhandle Rural El Member Assn | Open Energy Information

    Open Energy Info (EERE)

    Rural El Member Assn Jump to: navigation, search Name: Panhandle Rural El Member Assn Place: Nebraska Phone Number: 308-762-1311 Website: www.prema.coop Facebook: https:...

  18. Little Ocmulgee El Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Ocmulgee El Member Corp Jump to: navigation, search Name: Little Ocmulgee El Member Corp Place: Georgia Phone Number: 1-800-342-1290; 912-568-7171; 1-800-342-1290 Website:...

  19. Baldwin County El Member Corp | Open Energy Information

    Open Energy Info (EERE)

    El Member Corp Jump to: navigation, search Name: Baldwin County El Member Corp Place: Alabama Phone Number: (251) 989-6247 or (800) 837-3374 Website: www.baldwinemc.com Outage...

  20. Joe Wheeler Elec Member Corp | Open Energy Information

    Open Energy Info (EERE)

    Joe Wheeler Elec Member Corp Jump to: navigation, search Name: Joe Wheeler Elec Member Corp Place: Alabama Phone Number: (256) 552-2300 Website: www.jwemc.org Twitter: @jwemc...

  1. EA-98-M Members of WSPP, Inc. | Department of Energy

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

    M Members of WSPP, Inc. EA-98-M Members of WSPP, Inc. Order authorizing WSPP to export electric energy to Canada. PDF icon EA-98-M WSPP Final.pdf More Documents & Publications ...

  2. South River Elec Member Corp | Open Energy Information

    Open Energy Info (EERE)

    River Elec Member Corp Jump to: navigation, search Name: South River Elec Member Corp Place: North Carolina Phone Number: (910) 892-8071 Website: www.sremc.com Twitter: https:...

  3. Tri-State Electric Member Corp (Tennessee) | Open Energy Information

    Open Energy Info (EERE)

    Tri-State Electric Member Corp (Tennessee) Jump to: navigation, search Name: Tri-State Electric Member Corp Place: Tennessee Phone Number: 706-492-3251 Website: www.tsemc.net...

  4. Past Members | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Past Members since 2000 High Energy Physics Advisory Panel (HEPAP) HEPAP Home Meetings 2016 HEPAP Membership Past Members since 2000 ChargesReports Charter .pdf file (44KB) HEP ...

  5. Members | ANSER Center | Argonne-Northwestern National Laboratory

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

    Members Home > Research > Members Search by Type Staff PI If you see this field, leave it BLANK. OR Name or Keyword(s) Search If you see this field, leave it BLANK.

  6. Vermont Member Helps House Hunters Come Home to Energy Savings...

    Energy Savers [EERE]

    Vermont Member Helps House Hunters Come Home to Energy Savings Photo of the outside of a two-story house, with a tree nearby. Better Buildings Residential Network member ...

  7. Vehicle Technologies Office: Information for Members of Media | Department

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

    of Energy News » Vehicle Technologies Office: Information for Members of Media Vehicle Technologies Office: Information for Members of Media The Vehicle Technologies Office provides photos, videos, and contact information for members of the media to cover Vehicle Technologies Office-related news. Photos Members of the media may use the following photos. For low-resolution images, click on an image below. Photo of an engine. Photo of a hybrid electric bus. Photo of a man fueling a natural

  8. EA-98-M Members of WSPP, Inc. | Department of Energy

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

    98-M Members of WSPP, Inc. EA-98-M Members of WSPP, Inc. Order authorizing WSPP to export electric energy to Canada. EA-98-M WSPP Final.pdf (869.2 KB) More Documents & Publications EA-98-M Members of WSPP, Inc. Application to Export Electric Energy OE Docket No. EA-98-M WSPP Inc. EA-098-D Western Systems Power Pool

  9. State Energy Advisory Board Members | Department of Energy

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

    Members State Energy Advisory Board Members The State Energy Advisory Board consists of between 18 and 21 members appointed by the Secretary of Energy. Membership regulations are outlined in Public Law 101-440, Section 365 (g)(1)(A) as follows: At least eight of the members of the Board shall be persons who serve as directors of the State agency, or a division of such agency, responsible for developing State energy conservation plans pursuant to Section 362. At least four members shall be

  10. Dual mode fuel injector with one piece needle valve member

    DOE Patents [OSTI]

    Lawrence, Keith E.; Hinrichsen, Michael H.; Buckman, Colby

    2005-01-18

    A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively by inner and outer needle value members. The homogenous charged nozzle outlet set is defined by an outer needle value member that is moveably positioned in an injector body, which defines the conventional nozzle outlet set. The inner needle valve member is positioned in the outer needle valve member. The outer needle valve member is a piece component that includes at least one external guide surface, an external value surface and an internal valve seat.

  11. Mixed mode fuel injector with individually moveable needle valve members

    DOE Patents [OSTI]

    Stewart, Chris; Chockley, Scott A.; Ibrahim, Daniel R.; Lawrence, Keith; Tomaseki, Jay; Azam, Junru H.; Tian, Steven Ye; Shafer, Scott F.

    2004-08-03

    A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by first and second needle valve members. One of the needle valve members moves to an open position while the other needle valve member remains stationary for a homogeneous charge injection event. The former needle valve member stays stationary while the other needle valve member moves to an open position for a conventional injection event. One of the needle valve members is at least partially positioned in the other needle valve member. Thus, the injector can perform homogeneous charge injection events, conventional injection events, or even a mixed mode having both types of injection events in a single engine cycle.

  12. DOE Publishes Revised Report on Dimming LEDs with Phase-Cut Dimmers

    Broader source: Energy.gov [DOE]

    DOE has revised its October 2013 report, Dimming LEDs with Phase-Cut Dimmers: The Specifier's Process for Maximizing Success, to include updated information about the installation of LED lighting...

  13. DOE Publishes Technical Brief Clarifying Misconceptions about Safety of LED Lighting

    Broader source: Energy.gov [DOE]

    The spectral emission of LEDs is a frequent subject of concern, so to set the record straight, the U.S. Department of Energy has published a technical brief entitled True Colors: LEDs and the...

  14. Zimbabwe-Terms of Reference for Future LEDS | Open Energy Information

    Open Energy Info (EERE)

    (Redirected from CDKN-Zimbabwe-Terms of Reference for Future LEDS) Jump to: navigation, search Name Zimbabwe-Terms of Reference for Future LEDS AgencyCompany Organization Climate...

  15. DOE Publishes CALiPER Snapshot Report on LED A Lamps

    Broader source: Energy.gov [DOE]

    DOE's CALiPER program has released a Snapshot Report on LED A lamps, which utilizes the LED Lighting Facts program's extensive product database to help industry stakeholders understand the current state and trajectory of the market for that class

  16. File:(2010)2 full paper with cover LEDS FINAL (2).pdf | Open...

    Open Energy Info (EERE)

    (2010)2 full paper with cover LEDS FINAL (2).pdf Jump to: navigation, search File File history File usage File:(2010)2 full paper with cover LEDS FINAL (2).pdf Size of this...

  17. Intel Led OpenMP Training Session at NERSC This Wednesday March...

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

    Led OpenMP Training Session at NERSC This Wednesday March 25 Intel Led OpenMP Training Session at NERSC This Wednesday March 25 March 24, 2015 by Katie Antypas This Wednesday, ...

  18. Team led by PPPL's Chang receives DOE 2015 INCITE award totaling...

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

    Team led by PPPL's Chang receives DOE 2015 INCITE award totaling 270 million core hours to ... Center for Edge Physics Simulation (EPSI), led by C.S. Chang, a physicist at the U.S. ...

  19. Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated...

    Energy Savers [EERE]

    5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in Steady-State Conditions Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in Steady-State Conditions PDF ...

  20. Two PPPL-led teams win increased supercomputing time to study...

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

    Two PPPL-led teams win increased supercomputing time to study conditions inside fusion ... Researchers led by scientists at the U.S. Department of Energy's (DOE) Princeton Plasma ...

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

    Broader source: Energy.gov [DOE]

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

  2. DOE Publishes CALiPER Report on the Photoelectric Performance of LED MR16 Lamps

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's CALiPER program has released Report 22.1, which is part of a series of investigations on LED MR16 lamps. Report 22 investigated the photometric performance of 27 LED...

  3. Lumileds Develops Patterned Sapphire Substrate Technology for High-Power LEDs

    Broader source: Energy.gov [DOE]

    Patterned sapphire substrate (PSS) technology is an effective approach to improving efficacy and reducing cost of LEDs and has gained wide use in mid-power LEDs. With the help of DOE funding,...

  4. Webinar: The L Prize-Winning LED A19 Replacement-What Commercial...

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

    The L Prize-Winning LED A19 Replacement-What Commercial Building OwnersOperators Can Expect in 2012 Webinar: The L Prize-Winning LED A19 Replacement-What Commercial Building ...

  5. Mexico-EC-LEDS in the Agriculture Sector | Open Energy Information

    Open Energy Info (EERE)

    EC-LEDS in the Agriculture Sector Jump to: navigation, search Name Mexico-EC-LEDS in the Agriculture Sector AgencyCompany Organization United States Department of Agriculture,...

  6. Demonstration Assessment of Light Emitting Diode (LED) Street Lighting, Phase III Continuation

    SciTech Connect (OSTI)

    Cook, Tyson; Shackelford, Jordan; Johnson, Megan; Pang, Terrance

    2008-11-01

    This report summarizes the third phase of an LED street lighting assessment project in Oakland, California, conducted to study the applicability of LED luminaires in a street lighting application.

  7. Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the "Successful Selection of LED Streetlight Luminaires" webcast, held March 6, 2013.

  8. CALiPER Benchmark Report: Performance of Halogen Incandescent MR16 Lamps and LED Replacement

    SciTech Connect (OSTI)

    Paget, M. L.; Lingard, R. D.; Myer, M. A.

    2008-11-01

    This benchmark report addresses the halogen MR16 lamp and its commercially available light-emitting diode (LED) replacements.

  9. Assessment of LED Technology in Ornamental Post-Top Luminaires. Sacramento, CA

    SciTech Connect (OSTI)

    Tuenge, J. R.; Bryan, M. M.; Bisbee, D. A.

    2011-12-01

    GATEWAY program report on a demonstration of LED ornamental post-top luminaires in a residential part of Sacramento, CA.

  10. Technical Feasibility Assessment of LED Roadway Lighting on the Golden Gate Bridge

    SciTech Connect (OSTI)

    Tuenge, J. R.

    2012-09-01

    GATEWAY program report on the technical feasibility of LED roadway lighting on the Golden Gate Bridge in San Francisco, CA.

  11. The City of Los Angeles LED Streetlight Program | Department of Energy

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

    Information Resources » Videos » The City of Los Angeles LED Streetlight Program The City of Los Angeles LED Streetlight Program View the video about the Los Angeles LED streetlight program, featuring an interview with City of Los Angeles Bureau of Street Lighting Director, Ed Ebrahimian. View the text-alternative version. Solid-State Lighting Home About the Solid-State Lighting Program Research & Development SSL Basics Using LEDs Information Resources Conferences & Meetings

  12. Demonstration of LED Retrofit Lamps at the Smithsonian Art Museum, Washington, DC

    SciTech Connect (OSTI)

    Miller, N. J.; Rosenfeld, S. M.

    2012-06-01

    GATEWAY program report on a demonstration of LED retrofit lamps at the Smithsonian American Art Museum in Washington, DC.

  13. WEBINAR: LED LIGHTING IN A PERFORMING ARTS BUILDING | Department of Energy

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

    WEBINAR: LED LIGHTING IN A PERFORMING ARTS BUILDING WEBINAR: LED LIGHTING IN A PERFORMING ARTS BUILDING Can LEDs render skin tones and makeup accurately in a dressing room? Can they provide the vertical footcandles in a studio to make dancers' bodies visible, or deliver acting studio lighting to bring out facial expressions and body movements? Can LEDs deliver adequate flicker-free light in the Scene Shop, where students are using saws and other construction tools? And, can they compete with

  14. Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the "Model Specification for LED Roadway Luminaires" webcast, held November 15, 2011.

  15. Use of Occupancy Sensors in LED Parking Lot and Garage Applications: Early Experiences

    SciTech Connect (OSTI)

    Kinzey, B. R.; Myer, M. A.; Royer, M. P.; Sullivan, G. P.

    2012-10-01

    Final GATEWAY program report on the early experiences of using occupancy sensors in LED parking lot and garage applications.

  16. Vietnam-EC-LEDS in the Agriculture Sector | Open Energy Information

    Open Energy Info (EERE)

    Sector Climate, Land Focus Area Agriculture, Economic Development, Greenhouse Gas, Land Use Topics Adaptation, Implementation, Low emission development planning, -LEDS,...

  17. Costa Rica-EC-LEDS in the Agriculture Sector | Open Energy Information

    Open Energy Info (EERE)

    Sector Climate, Land Focus Area Agriculture, Economic Development, Greenhouse Gas, Land Use Topics Adaptation, Implementation, Low emission development planning, -LEDS,...

  18. Kenya-EC-LEDS in the Agriculture Sector | Open Energy Information

    Open Energy Info (EERE)

    Sector Climate, Land Focus Area Agriculture, Economic Development, Greenhouse Gas, Land Use Topics Adaptation, Implementation, Low emission development planning, -LEDS,...

  19. Ultra-Deepwater Advisory Committee Members | Department of Energy

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

    Ultra-Deepwater Advisory Committee » Ultra-Deepwater Advisory Committee Members Ultra-Deepwater Advisory Committee Members 2013-2014 Ultra-Deepwater Advisory Committee Members Dr. George A. Cooper* Professor University of California, Berkeley Dr. Quenton R. Dokken President/CEO Gulf of Mexico Foundation Dr. Hartley H. Downs Technology Fellow Baker Hughes Incorporated Dr. Douglas J. Foster Senior Scientist ConocoPhillips Mr. James D. Litton* President and CEO Litton Consulting Group, Inc. Mr. D.

  20. Energy Secretary Moniz, Senator Alexander, other Members of Congress to

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

    Make Major Investment Announcement | Department of Energy Moniz, Senator Alexander, other Members of Congress to Make Major Investment Announcement Energy Secretary Moniz, Senator Alexander, other Members of Congress to Make Major Investment Announcement November 13, 2014 - 1:55pm Addthis News Media Contact 202-586-4940 Tomorrow: Energy Secretary Moniz, Senator Alexander, other Members of Congress to Make Major Investment Announcement WASHINGTON-On Friday, November 13, Secretary of Energy

  1. NEJC Board Member Receives 2015 National Planning Excellence Award |

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

    Department of Energy Board Member Receives 2015 National Planning Excellence Award NEJC Board Member Receives 2015 National Planning Excellence Award National Environmental Justice Conference, Inc. Board of Directors Member Receives American Planning Association 2015 National Planning Excellence Award (122.22 KB) More Documents & Publications NEJC Honors EJ Leaders and Pioneers 2015 National Environmental Justice Conference and Training Program Concludes in Washington, DC Preparations

  2. Members | U.S. DOE Office of Science (SC)

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

    Members Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings Members Charges/Reports Charter .pdf file (135KB) BER Committees of Visitors Federal Advisory Committees BER Home Members Print Text Size: A A A FeedbackShare Page Dr. Gary Stacey, Chair Associate Director National Soybean Biotechnology Center Department of Microbiology and Molecular Immunology 271E Christopher S. Bond Life Sciences Center University of Missouri Columbia, MO 65211 staceyg@missouri.edu

  3. DOE Advisory Committee Members' Ethics and Conflict of Interest Guidance

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

    ETHICS AND CONFLICT OF INTEREST GUIDANCE for Department of Energy Advisory Committee Members The composition of the Department's advisory committees may include both full-time Federal Government employees and individuals who are employed by or represent non- Federal Government entities. Members of a committee who represent interests other than the Federal Government are not Government employees or so-called "special Government employees." For non-Federal advisory committee members, the

  4. 2012 Secretary of Energy Advisory Board Members | Department of Energy

    Energy Savers [EERE]

    2 Secretary of Energy Advisory Board Members 2012 Secretary of Energy Advisory Board Members 2012 Advisory Board Members Norman Augustine Photo of Norman Augustine Former Chairman and CEO, Lockheed Martin, Former Under Secretary for the Army Norman R. Augustine was raised in Colorado and attended Princeton University where he graduated with a BSE in Aeronautical Engineering, magna cum laude, and an MSE. He was elected to Phi Beta Kappa, Tau Beta Pi and Sigma Xi. More about Norman Augustine

  5. Postdoctoral Society Members and Board | Argonne National Laboratory

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

    Postdoctoral Society Members and Board Postdoctoral Society Members and Board PSA Officers Lee Solomon, NST (President) Noah Van Dam, ES (Vice President) Fatih Sen, NST (Secretary) Giovanni Ramirez, ES (Co-Secretary/Postdoc Symposium Coordinator) Alex Rettie, MSD (Liaison Officer) Muge Acik, NST (Deputy Liaison Officer) Board Members Jeremy Love, HEP Andrew Senesi, XSD Giovanni Ramirez Gonzalez, ES Vinu Vikraman, HEP Alumni Benjamin Kay, PHY Catherine Deibel, PHY Chithra Kumaran Nair, NE

  6. DOE Advisory Committee Members' Ethics and Conflict of Interest Guidance |

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

    Department of Energy DOE Advisory Committee Members' Ethics and Conflict of Interest Guidance DOE Advisory Committee Members' Ethics and Conflict of Interest Guidance DOE Advisory Committee Members' Ethics and Conflict of Interest Guidance, as posted on the U.S. Department of Energy website. Ethics and Conflict of Interest Guidance (18.43 KB) More Documents & Publications GSA Federal Advisory Committee Management; Final Rule -- 41CFR Parts 101-6 and 102-3 DOE Manual - ADVISORY COMMITTEE

  7. White House Meeting Honors New Superior Energy Performance Members

    Broader source: Energy.gov [DOE]

    New Superior Energy Performance members from industry and the utility sector formally joined the Department of Energy's Better Buildings Industrial Superior Energy Performance Accelerator Program on December 3.

  8. Members 2006 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    6 Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings NSAC Members Charges/Reports Charter .pdf file (78KB) NP Committees of Visitors Federal Advisory Committees NP Home NSAC Members NSAC Members 2006 Print Text Size: A A A FeedbackShare Page NSAC Members for 2014 | 2013-12 | 2011 |2010 | 2009 | 2008 | 2007 | 2006 | 2004-5 | 2004 | 2003 | 2001-2 | 2000-1 DOE/NSF Nuclear Science Advisory Committee Membership List 2006 Ani Aprahamian Department of Physics University of Notre Dame 183

  9. Members2003 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    3 Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings NSAC Members Charges/Reports Charter .pdf file (78KB) NP Committees of Visitors Federal Advisory Committees NP Home NSAC Members NSAC Members 2003 Print Text Size: A A A FeedbackShare Page NSAC Members for 2014 | 2013-12 | 2011 |2010 | 2009 | 2008 | 2007 | 2006 | 2004-5 | 2004 | 2003 | 2001-2 | 2000-1 DOE/NSF Nuclear Science Advisory Committee Membership List 2003 Ricardo Alarcon Dept. of Physics and Astronomy Arizona State

  10. Members2004 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings NSAC Members Charges/Reports Charter .pdf file (78KB) NP Committees of Visitors Federal Advisory Committees NP Home NSAC Members NSAC Members 2004 Print Text Size: A A A FeedbackShare Page NSAC Members for 2014 | 2013-12 | 2011 |2010 | 2009 | 2008 | 2007 | 2006 | 2004-5 | 2004 | 2003 | 2001-2 | 2000-1 DOE/NSF Nuclear Science Advisory Committee Membership List 2004 Ricardo Alarcon Dept. of Physics and Astronomy Arizona State University

  11. ANSER Center member Kelly Lefler successfully defends her dissertation...

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

    Kelly Lefler successfully defends her dissertation Home > News & Events > ANSER Center member Kelly Lefler successfully defends her dissertation The ANSER Center congratulates...

  12. Hot-junction electrode members for copper/silver chalcogenides

    DOE Patents [OSTI]

    Hampl, Jr., Edward F.

    1979-12-25

    Tungsten, molybdenum, and alloys thereof are useful as electrode members for thermoelectric legs made from chalcogenides of copper and/or silver.

  13. ORSSAB Member Greg Paulus Served His Country, Helped People With...

    Office of Environmental Management (EM)

    Greg Paulus Served His Country, Helped People With Disabilities and Continues to Serve His Community ORSSAB Member Greg Paulus Served His Country, Helped People With Disabilities ...

  14. Willi Ernst and family members | Open Energy Information

    Open Energy Info (EERE)

    founder and Managing Director. He sold his shares to Centrosolar but continues to run Biohaus. References: Willi Ernst (and family members)1 This article is a stub. You...

  15. Residential Network Members Support New Data-Driven Initiative...

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

    SEED logo. Better Buildings Residential Network members the Institute for Market Transformation and the National Association of State Energy Officials have partnered with the U.S. ...

  16. Residential Network Members Impact More Than 42,000 Households...

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

    row of townhomes. Eligible Better Buildings Residential Network members reported completing 27,563 home energy upgrades during 2013 as part of the Residential Network's first ...

  17. New York Network Members Join Forces to Create Green Jobs

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network member Rural Ulster Preservation Company (RUPCO) is using its knowledge of the housing market to create energy efficiency contracting jobs with fellow...

  18. Critical Materials Institute signs new member United Technologies...

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

    signs new member United Technologies Research Center Contacts: For release: Aug. 18, 2015 Alex King, Director, Critical Materials Institute, (515) 296-4505 Laura Millsaps, Ames...

  19. White House Meeting Honors New Superior Energy Performance Members...

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

    Addthis New Superior Energy Performance (SEP) members 3M Company, Cummins Inc., General Dynamics OTS, Nissan, Schneider Electric, and Volvo Group North America from industry, and ...

  20. Global Nuclear Energy Partnership Members Convene in Jordan For...

    Energy Savers [EERE]

    ... Attendees in Jordan included 19 of GNEP's 21 members, Australia, Bulgaria, Canada, China, ... Slovak Republic, South Africa, and Spain and three international organizations. ...

  1. Postdoctoral Society Members and Board | Argonne National Laboratory

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

    Society Members and Board PSA Officers Joshua Bergerson, ES (President) Marvin Cummings, XSD (Vice President) Rebecca Tissot, CSE (Secretary) Jessica Linville, ES (Liaison Officer)...

  2. Tipmont Rural Elec Member Corp | Open Energy Information

    Open Energy Info (EERE)

    search Name: Tipmont Rural Elec Member Corp Abbreviation: Tipmont REMC Address: 403 S Main St Place: Linden, Indiana Zip: 47955 Phone Number: 800-726-3953 Website:...

  3. EERE Success Story-LED Lighting in the Classroom for Energy Efficiency

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

    and Enhanced Learning | Department of Energy LED Lighting in the Classroom for Energy Efficiency and Enhanced Learning EERE Success Story-LED Lighting in the Classroom for Energy Efficiency and Enhanced Learning July 21, 2016 - 12:00pm Addthis EERE Success Story—LED Lighting in the Classroom for Energy Efficiency and Enhanced Learning EERE Success Story—LED Lighting in the Classroom for Energy Efficiency and Enhanced Learning EERE Success Story-LED Lighting in the Classroom for

  4. ANSER Center member Mike Vagnini successfully defends his dissertation |

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

    ANSER Center | Argonne-Northwestern National Laboratory Mike Vagnini successfully defends his dissertation Home > News & Events > ANSER Center member Mike Vagnini successfully defends his dissertation The ANSER Center congratulates ANSER Center member Mike Vagnini on the successful defense of his dissertation. Dr Vagnini

  5. Residential Network Members Unite to Form Green Bank Network

    Broader source: Energy.gov [DOE]

    Residential Network members Connecticut Green Bank and NY Green Bank, a division of Residential Network member New York State Energy Research and Development Authority, have helped launch the Green Bank Network, a new international organization focused on collaborating to scale up private financing to meet the challenge of climate change.

  6. Method for brazing together planar and nonplanar metal members

    DOE Patents [OSTI]

    Hammersand, Fred G.; Witkowski, Anthony J.

    1985-01-01

    The invention relates to a method and apparatus for brazing two metal members together, at least one of which is nonplanar, in a brazing furnace using a substantially pure brazing material. The method comprises the steps of utilizing a brazing fixture to hold the two metal members in tangential relation to one another along a portion of each member so that a cavity is formed adjacent to the contacting portions. A braze material is then positioned within the cavity. The braze fixture, the metal members, and the braze material are then placed in a brazing furnace. A heat shield is then placed over the braze fixture, the metal members, and the braze material to shield the braze material from direct furnace radiation. The furnace temperature is linearly increased at a rate of about 180.degree. C. per hour until a temperature of 350.degree. C. is achieved. Heat is transferred by conduction from the metal members to the braze material to cause the braze material to melt. Some material from the metal members slowly diffuses into the braze material forming a braze joint. The furnace is rapidly cooled to room temperature using nitrogen gas. The brazed assemblies made according to this method are superior to assemblies formed by heliarc welding.

  7. WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency

    Broader source: Energy.gov [DOE]

    With the help of DOE funding, WhiteOptics has developed a composite coating that can be used to improve efficiency in backlit, indirect, and cavity-mixing LED luminaire designs by maximizing light reflection and output. The highly diffuse coating, which is based on a novel high-reflectance particle technology, allows for uniform distribution of light without exaggerating the point-source nature of the LEDs, and is intended to offer an overall system cost-improving solution for LED optics.

  8. EECBG Success Story: Solar LED Light Pilot Project Illuminates the Way in

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

    Alabama | Department of Energy Solar LED Light Pilot Project Illuminates the Way in Alabama EECBG Success Story: Solar LED Light Pilot Project Illuminates the Way in Alabama September 12, 2012 - 2:15pm Addthis Boaz, Alabama Mayor Tim Walker, along with state representatives and community leaders, cut the ribbon for the state's solar LED light pilot project. | Photo courtesy of Lionel Green, Sand Mountain Reporter. Boaz, Alabama Mayor Tim Walker, along with state representatives and community

  9. Philips Lumileds Achieves 139 lm/W in a Neutral White LED

    Broader source: Energy.gov [DOE]

    Philips Lumileds' LUXEON Rebel LED can now deliver 139 lm/W in a neutral white LED. The top bin LED, developed with a single InGaN die and phosphor conversion, shows high-performance characteristics up to 139 lm/W and 138 lumens at 350 mA, with a forward voltage of 2.83 V. The CCT of the device is 5385K and the CRI is 70.

  10. How City-Led Efficiency Efforts Can Support State Climate and Energy

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

    Planning | Department of Energy City-Led Efficiency Efforts Can Support State Climate and Energy Planning How City-Led Efficiency Efforts Can Support State Climate and Energy Planning Provides states and their stakeholders with a short synopsis for what it would look like to include city-led energy efficiency efforts in their climate and energy plans, including current activity at the national and state levels, best practices, energy savings examples, cost-effectiveness, EM&V and DOE

  11. Secretary Chu Announces $38 Million for 42 University-Led Nuclear Research

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

    and Development Projects | Department of Energy 8 Million for 42 University-Led Nuclear Research and Development Projects Secretary Chu Announces $38 Million for 42 University-Led Nuclear Research and Development Projects May 20, 2010 - 12:00am Addthis Washington, D.C. - U.S. Secretary of Energy Steven Chu today announced the selection of 42 university-led research and development projects for awards totaling $38 million. These projects, funded over three to four years through the

  12. EERE Success Story-Improving the Efficiency and Lowering the Cost of LED

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

    Lighting | Department of Energy Improving the Efficiency and Lowering the Cost of LED Lighting EERE Success Story-Improving the Efficiency and Lowering the Cost of LED Lighting July 13, 2016 - 10:30am Addthis Photo Courtesy | Lumileds Photo Courtesy | Lumileds One of the biggest initial barriers to the widespread adoption of energy-efficient light-emitting diodes (LEDs) has been the cost. While considerable progress has been made on that front, further cost reductions will result in even

  13. LED exit signs: Improved technology leads the way to energy savings

    SciTech Connect (OSTI)

    Sardinsky, R.; Hawthorne, S.

    1994-12-31

    Recent innovations in light-emitting diode (LED) exit signs may make LED signs the best choice among the energy efficient options available. In the past, LED signs have offered low power consumption, projected long lamp life, and low maintenance requirements. Now, the best of the LED signs also offer improved optical designs that reduce their already low power consumption while improving visibility and appearance, and even reduce their cost. LED exit signs are gaining market share, and E Source expects this technology to eventually dominate over incandescent, compact fluorescent, and electroluminescent signs. More research is needed, however, to confirm manufacturers` claims of 20-year operating lives for LED signs. Conservative estimates place the number of exit signs in US buildings at about 40 million. Although each sign represents a very small part of a building`s load, exit signs are ready targets for energy efficiency upgrades -- they operate continuously and most use inefficient incandescent sources. With an LED sign, annual energy and maintenance costs can be reduced by more than 90 percent compared to a typical incandescent sign. Low annual costs help to offset the LED sign`s relatively high first cost. More than 25 utilities offer DSM incentives for energy efficient exit signs, and efficient alternatives are becoming more readily available. Recent improvements in optical designs enable many LED signs to visually out perform other sources. In addition to these benefits, LED exit signs have lower life cycle cost than most other options. The biggest barrier to their success, however, is that their first cost has been considerably higher than competing technologies. LED sign prices are falling rapidly, though, because manufacturers are continually improving optical designs of the fixtures to use fewer LEDs and thus even less energy while providing better performance.

  14. Researchers Say They've Solved the Mystery of LED Lighting "Droop"

    Broader source: Energy.gov [DOE]

    Despite being cool, ultra-efficient and long lasting, the light-emitting diode (LED) faces a problem called “efficiency droop.” New findings from simulations carried out at the National Energy Research Scientific Computer Center (NERSC) have unearthed droop’s elusive cause, researchers say, paving the way for wider LED use. An illustration of nitride-based LEDs.| Courtesy of the National Energy Research Scientific Computing Center.

  15. Department of Energy Announces $17 Million to Bolster University-Led

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

    Nuclear Energy Research and Development | Department of Energy $17 Million to Bolster University-Led Nuclear Energy Research and Development Department of Energy Announces $17 Million to Bolster University-Led Nuclear Energy Research and Development September 21, 2011 - 1:39pm Addthis Washington, D.C. - The U.S. Department of Energy today announced that $17 million in research grants will be awarded to 23 university-led teams aimed at strengthening the robust research and development

  16. DOE Science Showcase - Light-emitting Diode (LED) Lighting Research | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy Office of Scientific and Technical Information Light-emitting Diode (LED) Lighting Research Light-emitting diode (LED) lighting is a type of solid-state lighting that uses a semiconductor to convert electricity to light. LED lighting products are beginning to appear in a wide variety of home, business, and industrial products such as holiday lighting, replacement bulbs for incandescent lamps, street lighting, outdoor area lighting and indoor ambient lighting. Over the past

  17. NSAC Members| U.S. DOE Office of Science (SC)

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

    Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings NSAC Members Charges/Reports Charter .pdf file (78KB) NP Committees of Visitors Federal Advisory Committees NP Home NSAC Members Print Text Size: A A A FeedbackShare Page NSAC Members for 2016 | 2015 | 2014 | 2013-12 | 2011 |2010 | 2009 | 2008 | 2007 | 2006 | 2004-5 | 2004 | 2003 | 2001-2 | 2000-1 DOE/NSF Nuclear Science Advisory Committee 2016 Membership List Paul Benny .pdf file (21KB) (2016 ACS ex-Officio) Department of Chemistry

  18. Means to flexibly attach lens frames to temple members

    DOE Patents [OSTI]

    Smith, Harry D.

    1995-01-01

    The invention is a band hinge for flexibly connecting the temple member to the lens frame thereby preventing damage from inadvertent pressure or cyclic wear. A distinguishing feature of the invention is the use of a band hinge that holds together the temple member and the lens frame without the use of a pin or screw hinging mechanism. The invention allows for a high degree of freedom of movement for the temple member with respect to the lens frame which will prevent most forms of damages to the glasses from these types of events.

  19. Zimbabwe-Terms of Reference for Future LEDS | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name Zimbabwe-Terms of Reference for Future LEDS AgencyCompany Organization Climate and Development Knowledge Network (CDKN), United Kingdom...

  20. Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in

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

    Steady-State Conditions | Department of Energy 0.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in Steady-State Conditions Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in Steady-State Conditions Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in Steady-State Conditions (8.45 MB) More Documents & Publications MARCH 2016 POSTINGS Retail Lamps Study 3.2: Lumen and Chromaticity Maintenance of LED A Lamps Operated in Steady-State Conditions

  1. Bottom Up and Country Led: A New Framework for Climate Action...

    Open Energy Info (EERE)

    transition strategically to low-carbon economic development while bolstering their resilience to the effects of climate change." References "Bottom Up and Country Led: A New...

  2. In the OSTI Collections: LEDs | OSTI, US Dept of Energy Office...

    Office of Scientific and Technical Information (OSTI)

    ... phosphor; the patent describes bluegreen and greenyellow phosphors for this purpose. ... To fully realize the energy savings of the LEDs, the electronics that drive them must also ...

  3. 2015 DOE SSL R&D Workshop LED Topic Table Questions to Consider

    Broader source: Energy.gov [DOE]

    This document was distributed during the LED Topic Table portion of the DOE SSL R&D Workshop and aimed to prompt discussion on the following topics:

  4. OSTIblog Articles in the LED Topic | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information LED Topic Enjoy the benefits of LED lighting by Kathy Chambers 30 Dec, 2013 in Products and Content 13966 Photographic%20credit%E2%80%9CArchitect%20of%20the%20Capitol.%E2%80%9D%202010%20LED%20Tree.jpg Enjoy the benefits of LED lighting Read more about 13966 Every day we are bombarded with advertisements in every form and format telling us that our lives will be improved if we buy a particular product because it will save us money, reduce our work effort,

  5. Salazar, Chu to Flip Switch on Energy-Efficient LED Lights on...

    Energy Savers [EERE]

    "Using energy efficient LED lightbulbs is an important way Americans can save money by saving energy," said Energy Secretary Steven Chu. "Investing in an American economy that is ...

  6. EERE Success Story-LED Lighting in the Classroom for Energy Efficiency...

    Energy Savers [EERE]

    easily controllable, because it's based on semiconductors rather than on filaments, plasma, or gas. "In addition to demonstrating the excellent efficiency of LED lighting ...

  7. Sandia-Developed LED Pulser Delivers Laser-Like Performance at...

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

    Energy Frontier Research Centers: Solid-State Lighting Science Center for Frontiers of ... diode (LED) driver delivers lighting performance that exceeds that of ...

  8. LED Linear Lamps and Troffer Lighting: CALiPER Report Series 21

    SciTech Connect (OSTI)

    Beeson, Tracy; Miller, Naomi

    2014-06-17

    Video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.

  9. Demonstration Assessment of LED Roadway Lighting: NE Cully Blvd., Portland, OR

    SciTech Connect (OSTI)

    Royer, M. P.; Poplawski, M. E.; Tuenge, J. R.

    2012-08-01

    GATEWAY program report on a demonstration of LED roadway lighting on NE Cully Boulevard in Portland, OR, a residential collector road.

  10. CALiPER Benchmark Report: Performance of Incandescent A Type and Decorative Lamps and LED Replacements

    SciTech Connect (OSTI)

    Lingard, R. D.; Myer, M. A.; Paget, M. L.

    2008-11-01

    This benchmark report addresses common omnidirectional incandescent lamps - A-type and small decorative, candelabra-type lamps - and their commercially available light-emitting diode (LED) replacements.

  11. Text Alternative Version: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the "Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products" webcast, held March 28, 2013.

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

    Energy Savers [EERE]

    | Department of Energy Chromaticity Shift Modes of LED PAR38 Lamps DOE Publishes CALiPER Report on Chromaticity Shift Modes of LED PAR38 Lamps March 23, 2016 - 11:33am Addthis The U.S. Department of Energy's CALiPER program has released Report 20.5, which is part of a series of investigations on LED PAR38 lamps. The new report builds on CALiPER Report 20.4 by providing a tear-down analysis of its 32 LED PAR38 lamp models and also performing additional analyses on the spectroradiometric data

  13. Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer Lighting

    Broader source: Energy.gov [DOE]

    Following is a text version of a video about CALiPER Application Report Series 21 on LED Linear Lamps and Troffer Lighting.

  14. Enhancing the Output of LED Lighting | U.S. DOE Office of Science...

    Office of Science (SC) Website

    market penetration as sources of lighting in both residential and commercial applications. ... the LED. Researchers at the Center for Energy Efficient Materials EFRC at University of ...

  15. Hydrogen Storage Lab PI Workshop: HyMARC and NREL-Led Characterization...

    Office of Environmental Management (EM)

    Effort Hydrogen Storage Lab PI Workshop: HyMARC and NREL-Led Characterization Effort The National Renewable Energy Laboratory (NREL) hosted a Hydrogen Storage Lab ...

  16. LED System Performance in a Trial Installation … Two Years Later

    Energy Savers [EERE]

    ... Documentation of the Yuma Sector Border Patrol Area lighting LED trial demonstration ... as an investment grade audit (IGA) trial demonstration of the proposed design solution. ...

  17. Development and Industrialization of InGaN/GaN LEDs on Patterned...

    Energy Savers [EERE]

    ...2013 - 11302015 Funding Opportunity: SSL Manufacturing R&D Funding Opportunity Announcement (FOA) DE-FOA-000079 Project Objective The objective of this project is to reduce LED ...

  18. Demonstration Assessment of Light-Emitting Diode (LED) Post-Top...

    Office of Scientific and Technical Information (OSTI)

    This report reviews the energy savings potential and lighting delivered by the LED post-top luminaires. Authors: Myer, Michael ; Goettel, Russell T. ; Kinzey, Bruce R. Publication ...

  19. Text-Alternative Version: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR®

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® webcast.

  20. DOE Publishes CALiPER Report on Chromaticity Shift Modes of LED PAR38 Lamps

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

    | Department of Energy Chromaticity Shift Modes of LED PAR38 Lamps DOE Publishes CALiPER Report on Chromaticity Shift Modes of LED PAR38 Lamps March 23, 2016 - 11:33am Addthis The U.S. Department of Energy's CALiPER program has released Report 20.5, which is part of a series of investigations on LED PAR38 lamps. The new report builds on CALiPER Report 20.4 by providing a tear-down analysis of its 32 LED PAR38 lamp models and also performing additional analyses on the spectroradiometric data