National Library of Energy BETA

Sample records for led exit signs

  1. 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...

  2. Illuminated Exit Signs | Department of Energy

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

    of the federal energy conservation standards. File Illuminated Exit Signs -- v1.1 More Documents & Publications Commercial Refrigeration Equipment Faucets Beverage Vending Machines

  3. LED Exit Signs | Open Energy Information

    Open Energy Info (EERE)

    Contact needs updating Image needs updating Reference needed Missing content Broken link Other Additional Comments Cancel Submit Category: Articles with outstanding TODO tasks...

  4. LED Basics | Department of Energy

    Office of Environmental Management (EM)

    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. Emergency Exit Maps | Stanford Synchrotron Radiation Lightsource

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

    Emergency Exit Maps SSRL Exit Maps Exit map 219 exit map trailer 274 exit map 450 trailers exit map trailer 271 exit map trailer 270 exit map trailer 294 exit maps 118 & 117 exit...

  6. LEDs: The Future of Lighting is Here

    Broader source: Energy.gov [DOE]

    So, what do the little indicator light on your cell phone, a street light, an exit sign, and the common household light bulb have in common?

  7. LED Lightbulbs

    Broader source: Energy.gov [DOE]

    All of these lightbulbs meet the new energy standards that take effect from 2012–2014. These LED bulbs use about 75%–80% less energy than traditional bulbs.

  8. 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.

  9. LED lamp

    SciTech Connect (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.

  10. 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 |...

  11. Records Management Exit Procedures | Department of Energy

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

    Exit Procedures Records Management Exit Procedures The purpose of this brochure is to provide records exit procedures for Federal and contractor employees who are departing on a permanent basis or for an extended period of time for military, medical, or disability leave. PDF icon Records Management Exit Procedures More Documents & Publications Records Management Exit Procedures Procedures for Departing Employees Procedures for Departing Employees

  12. ORIGINAL SIGNED BY

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

    ORIGINAL SIGNED BY 9/30/08 9/12/08 ORIGINAL SIGNED BY ORIGINAL SIGNED ORIGINAL SIGNED BY 9/12/08 ORIGINAL SIGNED BY 9/12/08 ORIGINAL SIGNED BY

  13. ORIGINAL SIGNED BY

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

    ORIGINAL SIGNED BY 9/12/08 ORIGINAL SIGNED BY 9/12/08 ORIGINAL SIGNED BY

  14. Solar concentrator with restricted exit angles

    DOE Patents [OSTI]

    Rabl, Arnulf; Winston, Roland

    1978-12-19

    A device is provided for the collection and concentration of radiant energy and includes at least one reflective side wall. The wall directs incident radiant energy to the exit aperture thereof or onto the surface of energy absorber positioned at the exit aperture so that the angle of incidence of radiant energy at the exit aperture or on the surface of the energy absorber is restricted to desired values.

  15. LED Frequently Asked Questions

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

    as a general light source. As more LED lighting products are introduced on the market, ... Are LEDs ready for general lighting? The number of white-light LED products available on ...

  16. LED Lightbulbs | Department of Energy

    Energy Savers [EERE]

    File LED lightbulbs - EPS file.

  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. 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.

  19. Records Management Exit Procedures | Department of Energy

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

    purpose of this brochure is to provide records exit procedures for Federal and contractor employees who are departing on a permanent basis or for an extended period of time for...

  20. Entry/Exit Port testing, test report

    SciTech Connect (OSTI)

    Winkelman, R.H.

    1993-05-01

    The Waste Receiving and Processing Module I (WRAP-1) facility must have the ability to allow 55-gallon drums to enter and exit glovebox enclosures. An Entry/Exit Port (Appendix 1, Figure 1), designed by United Engineers and Constructors (UE&C), is one method chosen for drum transfer. The Entry/Exit Port is to be used for entry of 55-gallon drums into both process entry gloveboxes, exit of 55-gallon drum waste pucks from the low-level waste (LLW) glovebox, and loadout of waste from the restricted waste management glovebox. The Entry/Exit Port relies on capture velocity air flow and a neoprene seal to provide alpha confinement when the Port is in the open and closed positions, respectively. Since the glovebox is in a slight vacuum, air flow is directed into the glovebox through the space between the overpack drum and glovebox floor. The air flow is to direct any airborne contamination into the glovebox. A neoprene seal is used to seal the Port door to the glovebox floor, thus maintaining confinement in the closed position. Entry/Exit Port testing took place February 17, 1993, through April 14, 1993, in the 305 building of Westinghouse Hanford Company. Testing was performed in accordance with the Entry/Exit Port Testing Test Plan, document number WHC-SD-WO26-TP-005. A prototype Entry/Exit Port built at the Hanford Site was tested using fluorescent paint pigment and smoke candles as simulant contaminants. This test report is an interim test report. Further developmental testing is required to test modifications made to the Port as the original design of the Port did not provide complete confinement during all stages of operation.

  1. 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,...

  2. 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.

  3. 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.

  4. 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.

  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. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.

  11. Too Crowded to Exit! | The Ames Laboratory

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

    Too Crowded to Exit! Crowding controls whether carbon chains or a hydrogen atom will transfer from transition metal molecular complexes to acceptor molecules. To gain this new insight into the factors governing the onset of hydrogen abstraction from metal alkyls, researchers carefully designed experiments involving series of cobalt and chromium alkyls. The results show that when the alkyl chain is only one carbon long, the alkyl group will transfer to a rhodium acceptor molecule. But, if the

  12. Microsoft Word - Records Management Exit Procedures

    Office of Environmental Management (EM)

    Records Management Exit Procedures For Departing Department of Energy Federal and Contractor Employees Records Management Division Office of IT Planning, Architecture, and E-Government Office of the Chief Information Officer July 2010 2 PRESERVATION OF FEDERAL RECORDS The Federal Records Act requires the Department of Energy (DOE) Records Officer to remind departing Federal and contractor employees that Federal records may not be removed from Government custody nor may they be destroyed except

  13. high-power LEDs

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

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

  14. 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...

  15. 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:...

  16. 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

  17. LED Lighting | Department of Energy

    Energy Savers [EERE]

    Electricity & Fuel » Lighting » LED Lighting LED Lighting LED Lighting The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting technologies. Quality LED light bulbs last longer, are more durable, and offer 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 efficient lighting technology, and has the potential to fundamentally

  18. LED Lighting | Department of Energy

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

    Electricity & Fuel » Lighting » LED Lighting LED Lighting LED Lighting The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting technologies. Quality LED light bulbs last longer, are more durable, and offer 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 efficient lighting technology, and has the potential to fundamentally

  19. Using LEDs | Department of Energy

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

    Using LEDs Using LEDs With their unique design and performance characteristics-such as directional light emission, compact profile, superior optical control, energy efficiency, breakage resistance, reduced maintenance, and long life-LEDs are well suited to a variety of lighting applications. LED products are most competitive in applications where these performance characteristics outweigh their first-cost disadvantages. Although LED products are finding success in a growing number of

  20. 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.

  1. 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...

  2. LED Lighting Facts®

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

    LED Lighting Facts 2014 Building Technologies Office Peer Review Marc Ledbetter, ... retailers, distributors, lighting designers, specifiers and energy efficiency programs. ...

  3. Volunteers - Sign Up

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

    Volunteers - Sign Up About Science Bowl Curriculum and Activities How to Build a Motor The Great Marble Drop How to Build a Turbine How to Build a Tower Classroom...

  4. 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...

  5. 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...

  6. 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 ...

  7. 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.

  8. Employee-Led Safety Committees

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

    Employee-Led Safety Committees 5 Mentoring and Outreach * CHPRC utilizes members of ... Allocation of Resources * Recognition - Establish a recognition budget * Mentoring & ...

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. LED

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

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

  14. 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.

  15. 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...

  16. LED Lighting | Department of Energy

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

    are directional, 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...

  17. 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...

  18. 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 ...

  19. List of Whole House Fans Incentives | Open Energy Information

    Open Energy Info (EERE)

    upgrades Water Heaters Whole House Fans LED Exit Signs CHPCogeneration Biomass Photovoltaics Yes Georgia Environmental Finance Authority - Residential Energy Efficiency...

  20. LED Directional Lamps | Department of Energy

    Energy Savers [EERE]

    Directional Lamps LED Directional Lamps BTP EERE Solid-State Lighting Program PDF icon led_directional_lamps.pdf More Documents & Publications Energy Savings Estimates of Light Emitting Diodes Recessed LED Downlights General Service LED Lamps

  1. General Service LED Lamps | Department of Energy

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

    General Service LED Lamps General Service LED Lamps A U.S. DOE SSL technology fact sheet that compares general service LED light bulbs with incandescent and CFL bulbs. PDF icon led_general-service-lamps.pdf More Documents & Publications LED Directional Lamps Emerging Lighting Technology LED T8 Replacement Lamps

  2. 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.

  3. 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.

  4. LED lamp power management system and method

    SciTech Connect (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.

  5. Unions, LANL sign labor agreements

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

    Unions, LANL sign labor agreements Unions, LANL sign labor agreements The New Mexico Building and Construction Trades Council and Los Alamos National Security LLC, announced the signing of a series of labor agreements that affect nearly 750 construction and maintenance workers. September 21, 2012 Jay Johnson renews the contracts with the Laboratory's union workers. Jay Johnson (left) associate director for maintenance and infrastructure planning, renews the contracts with the Laboratory's union

  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 MR16 Lamps | Department of Energy

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

    report provides detailed analysis of LED MR16 lamp performance, covering basic performance ... Application Summary Report 22: LED MR16 Lamps An initial sample of 27 LED MR16 lamps and 8 ...

  8. 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 led_mr16-lamps.pdf More Documents & Publications Report 22.1: Photoelectric Performance of LED MR16 Lamps Caliper Retail Lamps Study 3.1: Dimming, Flicker, and Power Quality Characteristics of LED A Lamps Snapshot: MR16 Lamps

  9. LED Lighting Facts | Department of Energy

    Office of Environmental Management (EM)

    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 program is the LED Lighting Facts label, which presents

  10. 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 ...

  11. 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...

  12. 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 ...

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

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

    Boston, MA Municipal Consortium LED Street Lighting Workshop Presentations and ... U.S. Department of Energy Boston's LED Street Lighting Initiative Joanne Massaro, ...

  14. DOE Tour of Zero: The EXIT-0 House by John Hubert Associates...

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

    EXIT-0 House by John Hubert Associates DOE Tour of Zero: The EXIT-0 House by John Hubert Associates Addthis 1 of 22 John Hubert Associates' modern take on the traditional beach...

  15. LED Frequently Asked Questions | Department of Energy

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

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

  16. Sign Up For Email Updates

    Broader source: Energy.gov [DOE]

    Be the first to know of the latest developments from the Energy.gov team -- from videos to infographics to live Q&A’s -- by signing up for email updates.

  17. DOE ZERH Webinar: LED Lighting Efficiency

    Broader source: Energy.gov [DOE]

    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...

  18. 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...

  19. 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......

  20. 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...

  1. 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.

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

    Energy Savers [EERE]

    Los Angeles, CA Municipal Consortium LED Street Lighting Workshop Presentations and ... Lighting L.M. Seventynine: Who Is He and What Does He Have to Do with LED Street Lighting? ...

  3. 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 ... GATEWAY Testing Results for I-35W Bridge Webinar LED Performance Under Tough Conditions

  4. UNDERSTANDING LED COLOR-TUNABLE PRODUCTS

    Broader source: Energy.gov [DOE]

    LED luminaires with the ability to deliver varying light color have been on the architectural lighting market since the early days of LED lighting, but improved efficacy, colors, controls, and...

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

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

    Optimizing Illumination and Economic Performance Successful Selection of LED Streetlight Luminaires: Optimizing Illumination and Economic Performance This March 6, 2013 ...

  6. 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.

  7. 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

  8. 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.

  9. LED North America - Energy Innovation Portal

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

    LED North America Oak Ridge National Laboratory Success Story Details Partner Location Agreement Type Publication Date LED North America Oak Ridge, TN License July 2, 2013 Summary LED North America (LEDNA), founded in 2008, is a company located in Oak Ridge, Tennessee that produces LED alternatives for commercial lighting for applications such as roadways, parking lots, parking garages, and indoor high bay applications. The company is located in Oak Ridge at an incubator facility for the Oak

  10. LED ADOPTION REPORT | Department of Energy

    Energy Savers [EERE]

    Publications » Market Studies » LED ADOPTION REPORT LED ADOPTION REPORT LED ADOPTION REPORT The DOE report, Adoption of Light-Emitting Diodes in Common Lighting Applications, is the latest in a series analyzing markets where LEDs compete with traditional lighting sources. Report: Adoption of Light-Emitting Diodes in Common Lighting Applications Report Summary Full Infographic The new report reveals a wealth of insights into promising pathways for SSL technology development, providing estimates

  11. LED Lighting Basics | Department of Energy

    Office of Environmental Management (EM)

    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 source of light. LEDs are compound semiconductor devices that produce light when an appropriate electrical current is applied. Applying electrical current causes electrons to flow from the positive side of a diode structure to the negative side causing a chain of complex interactions at an atomic level

  12. 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%...

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

    Energy Savers [EERE]

    Department of Energy 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 indicator lights to general illumination. View

  14. Duke Energy (Electric) - Non-Residential Energy Efficiency Rebate...

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

    Fixture ( Light Tube: 75 LED Exit Signs: 10sign LED Case Lighting: 50door (10sensor) LED Traffic Signals: 12.50-25 Occupancy Sensors: 20-40sensor Air Conditioners:...

  15. Pacific Power - FinAnswer Express | Department of Energy

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

    Cathode: 5 CFLs: 5 Ceramic Metal Halide: 35 Pulse Start Metal Halide: 20 - 60 Induction: 125 LEDs: 10 - 100 Lighting Controls: 15 - 75 LED Exit Signs: 15 LED Signs:...

  16. Steam exit flow design for aft cavities of an airfoil

    DOE Patents [OSTI]

    Storey, James Michael (Clifton Park, NY); Tesh, Stephen William (Simpsonville, SC)

    2002-01-01

    Turbine stator vane segments have inner and outer walls with vanes extending therebetween. The inner and outer walls have impingement plates. Steam flowing into the outer wall passes through the impingement plate for impingement cooling of the outer wall surface. The spent impingement steam flows into cavities of the vane having inserts for impingement cooling the walls of the vane. The steam passes into the inner wall and through the impingement plate for impingement cooling of the inner wall surface and for return through return cavities having inserts for impingement cooling of the vane surfaces. A skirt or flange structure is provided for shielding the steam cooling impingement holes adjacent the inner wall aerofoil fillet region of the nozzle from the steam flow exiting the aft nozzle cavities. Moreover, the gap between the flash rib boss and the cavity insert is controlled to minimize the flow of post impingement cooling media therebetween. This substantially confines outflow to that exiting via the return channels, thus furthermore minimizing flow in the vicinity of the aerofoil fillet region that may adversely affect impingement cooling thereof.

  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. 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.

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

    Energy Savers [EERE]

    Dallas, TX Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Dallas, TX This page provides links to the presentations given at the DOE Municipal ...

  1. 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...

  2. 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.

  3. 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.

  4. 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...

  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. LED Outdoor Area Lighting Fact Sheet

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

    Outdoor Area Lighting LED technology is rapidly becoming competitive with high-intensity discharge light sources for outdoor area lighting. This document reviews the major design ...

  7. 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...

  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. 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.

  10. 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.

  11. 100 LPW 800 Lm Warm White LED

    SciTech Connect (OSTI)

    Decai Sun

    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 Lumiramic™ 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 efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumileds’ LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

  12. 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.

  13. Table 1: Points of Entry/Exit and Transporters | Department of Energy

    Energy Savers [EERE]

    1: Points of Entry/Exit and Transporters Table 1: Points of Entry/Exit and Transporters PDF icon POEE List.pdf More Documents & Publications EA-262-A TransCanada Power Marketing Ltd EA-262-C TransCanada Power Marketing Ltd EA-262-B TransCanada Power Marketing Ltd

  14. White LED with High Package Extraction Efficiency

    SciTech Connect (OSTI)

    Yi Zheng; Matthew Stough

    2008-09-30

    The goal of this project is to develop a high efficiency phosphor converting (white) Light Emitting Diode (pcLED) 1-Watt package through an increase in package extraction efficiency. A transparent/translucent monolithic phosphor is proposed to replace the powdered phosphor to reduce the scattering caused by phosphor particles. Additionally, a multi-layer thin film selectively reflecting filter is proposed between blue LED die and phosphor layer to recover inward yellow emission. At the end of the project we expect to recycle approximately 50% of the unrecovered backward light in current package construction, and develop a pcLED device with 80 lm/W{sub e} using our technology improvements and commercially available chip/package source. The success of the project will benefit luminous efficacy of white LEDs by increasing package extraction efficiency. In most phosphor-converting white LEDs, the white color is obtained by combining a blue LED die (or chip) with a powdered phosphor layer. The phosphor partially absorbs the blue light from the LED die and converts it into a broad green-yellow emission. The mixture of the transmitted blue light and green-yellow light emerging gives white light. There are two major drawbacks for current pcLEDs in terms of package extraction efficiency. The first is light scattering caused by phosphor particles. When the blue photons from the chip strike the phosphor particles, some blue light will be scattered by phosphor particles. Converted yellow emission photons are also scattered. A portion of scattered light is in the backward direction toward the die. The amount of this backward light varies and depends in part on the particle size of phosphors. The other drawback is that yellow emission from phosphor powders is isotropic. Although some backward light can be recovered by the reflector in current LED packages, there is still a portion of backward light that will be absorbed inside the package and further converted to heat. Heat generated in the package may cause a deterioration of encapsulant materials, affecting the performance of both the LED die and phosphor, leading to a decrease in the luminous efficacy over lifetime. Recent studies from research groups at Rensselaer Polytechnic Institute found that, under the condition to obtain a white light, about 40% of the light is transmitted outward of the phosphor layer and 60% of the light is reflected inward.1,2 It is claimed that using scattered photon extraction (SPE) technique, luminous efficacy is increased by 60%. In this project, a transparent/translucent monolithic phosphor was used to replace the powdered phosphor layer. In the normal pcLED package, the powdered phosphor is mixed with silicone either to be deposited on the top of LED die forming a chip level conversion (CLC) white LED or to be casted in the package forming a volume conversion white LED. In the monolithic phosphors there are no phosphor powder/silicone interfaces so it can reduce the light scattering caused by phosphor particles. Additionally, a multi-layer thin film selectively reflecting filter is inserted in the white LED package between the blue LED die and phosphor layer. It will selectively transmit the blue light from the LED die and reflect the phosphor's yellow inward emission outward. The two technologies try to recover backward light to the outward direction in the pcLED package thereby improving the package extraction efficiency.

  15. Aggregating job exit statuses of a plurality of compute nodes executing a parallel application

    DOE Patents [OSTI]

    Aho, Michael E.; Attinella, John E.; Gooding, Thomas M.; Mundy, Michael B.

    2015-07-21

    Aggregating job exit statuses of a plurality of compute nodes executing a parallel application, including: identifying a subset of compute nodes in the parallel computer to execute the parallel application; selecting one compute node in the subset of compute nodes in the parallel computer as a job leader compute node; initiating execution of the parallel application on the subset of compute nodes; receiving an exit status from each compute node in the subset of compute nodes, where the exit status for each compute node includes information describing execution of some portion of the parallel application by the compute node; aggregating each exit status from each compute node in the subset of compute nodes; and sending an aggregated exit status for the subset of compute nodes in the parallel computer.

  16. 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.

  17. 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 Committee created two sites initially, Site X in Tennessee and Site Y in New Mexico. While this was happening the technical and scientific experimentation was already well estab- lished. As early as 1929, Ernest O. Lawrence had invented the cyclotron, a mass spectrom-eter machine that led to the Calutrons (named so for the

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

    Broader source: Energy.gov [DOE]

    A new video series from ElectricTV.net explains the changes and opportunities offered by LED lighting.

  19. 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.

  20. 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...

  1. Text-Alternative Version LED Lighting Forecast

    Broader source: Energy.gov [DOE]

    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....

  2. 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.

  3. SPECIFYING LED COLOR-TUNABLE PRODUCTS

    Broader source: Energy.gov [DOE]

    Specifying LED color-tunable luminaires is dependent on being able to make accurate comparisons between products. Yet reporting performance values for color-tunable products is much more...

  4. LED Color Stability: 10 Important Questions

    Broader source: Energy.gov [DOE]

    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...

  5. 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...

  6. 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...

  7. Demonstration Assessment of LED Freezer Case Lighting

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

    Demonstration Assessment of Light-Emitting Diode (LED) Freezer Case Lighting Host Site: Albertsons Grocery, Eugene, Oregon Final Report prepared in support of the U.S. DOE Solid State Lighting Technology Demonstration GATEWAY Program Study Participants: Pacific Northwest National Laboratory U.S. Department of Energy LED Power, Inc. Aztec Energy Partners PECI, Inc. Eugene Water and Electric Board October 2009 Prepared for the U.S. Department of Energy by Pacific Northwest National Laboratory

  8. LED PAR38 Lamps | Department of Energy

    Energy Savers [EERE]

    PAR38 Lamps LED PAR38 Lamps The following CALiPER reports provide detailed analysis of LED PAR38 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Pending reports will offer analysis on flicker, dimming and power quality characteristics; stress testing; and lumen and chromaticity maintenance. These reports are intended to educate the industry on market trends, potential issues, and important areas for improvement.

  9. 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

  10. 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 ...

  11. LED Luminaire Lifetime: Recommendations For Testing and Reporting...

    Energy Savers [EERE]

    LED Luminaire Lifetime: Recommendations For Testing and Reporting LED Luminaire Lifetime: Recommendations For Testing and Reporting PDF icon LED Luminaire Lifetime: September 2014 ...

  12. 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 ...

  13. 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 ...

  14. 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.

  15. Yacyreta hydroelectric project contract signed

    SciTech Connect (OSTI)

    Not Available

    1987-09-01

    On June 26, 1987 the $270 million contract for the supply of 20 large hydraulic turbines for the Yacyreta Hydroelectric Project was signed by the Entidad Binacional Yacyreta, (a binational agency created by the governments of Argentina and Paraguay for the development of Yacyreta), and by Voith Hydro, Inc., of York, Pennsylvania, and Canadian General Electric of Montreal, Canada. Under the terms of the contract, 9 turbine units will be supplied by Voith Hydro, Inc. from its York, Pennsylvania plant, 4 units by Canadian General Electric of Montreal, and 7 units by Metanac, a consortium of Argentine manufacturers, who will utilize technology and technical assistance from Voith and CGE. The Yacyreta Project is being built on the Parana River on the border between Argentina and Paraguay. Construction at the site commenced in late 1983. Voith's portion of this contrast represents approximately $130 million dollars worth of business for its York, Pennsylvania facility.

  16. 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...

  17. 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...

  18. 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.

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

    Energy Savers [EERE]

    LED Package Architectures Enabled by Thermally Conductive Transparent Encapsulants Next-Generation LED Package Architectures Enabled by Thermally Conductive Transparent ...

  20. LED COLOR-TUNABLE PRODUCTS | Department of Energy

    Office of Environmental Management (EM)

    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 improved health and well-being, increased productivity, enhanced mood

  1. 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.

  2. LED structure with enhanced mirror reflectivity

    SciTech Connect (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.

  3. LED ADOPTION REPORT | Department of Energy

    Energy Savers [EERE]

    ADOPTION REPORT LED ADOPTION REPORT PDF icon Report: Adoption of Light-Emitting Diodes in Common Lighting Applications PDF icon Report Summary PDF icon Full Infographic More Documents & Publications Energy Savings Forecast of Solid-State Lighting in General Illumination Applications 2015 SSL TECHNOLOGY DEVELOPMENT WORKSHOP PRESENTATIONS - Day 1 Energy Savings Estimates of Light Emitting Diodes

  4. Local Grant Program | Open Energy Information

    Open Energy Info (EERE)

    Lighting Roofs Steam-system upgrades Windows LED Exit Signs Ground Source Heat Pumps Photovoltaics Solar Water Heat Hydroelectric energy Wind Yes City of Houston - Energy...

  5. New Smyrna Beach- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The Utilities Commission of New Smyrna Beach (UCNSB) is offering rebates to commercial customers for the purchase and implementation of energy efficient LED exit signs, increased insulation, and...

  6. Hutchinson Utilities Commission - Commercial Energy Efficiency...

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

    .brightenergysolutions.orgmunicipalities?http:www.brighten... State Minnesota Program Type Rebate Program Rebate Amount Lighting: 300 per kW saved LED Exit Signs: 12...

  7. Reading Municipal Light Department - Business Lighting Rebate...

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

    with Electronic Ballasts: 100fixture De-lamping: 4 - 9lamp Lighting Sensors: 20sensor LED Exit Signs: 20fixture Summary Reading Municipal Light Department (RMLD) offers...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    fluorescent systems, high-pressure sodium, metal halide, certain LED fixtures and exit signs. After installation, a Central Hudson representative will inspect the... Eligibility:...

  9. CX-003011: Categorical Exclusion Determination | Department of...

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

    retrofits to replace a 50 ton heating, ventilating, and air conditioning chiller at the 1984 Town Hall, and 5) building retrofits including replacinginstalling LED exit signs,...

  10. Uranium Processing Facility Team Signs Partnering Agreement ...

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

    Processing Facility ... Uranium Processing Facility Team Signs Partnering Agreement Posted: July 18, 2014 - 4:39pm Front row, left to right: Bill Priest, Consolidated Nuclear...

  11. 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 comparable across lifecycle phases, subsystems, and environmental impact category, and can be normalized to a userdefined functional unit. • Drill-down Review – These provide an indepth look at individual lamp designs with the ability to review across subsystem or lifecycle phase.

  12. 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 his University of California Radiation Lab in Berkeley was the center for research using cyclotrons to separate uranium 235 from natural uranium in machines referred to as Calutrons. These newly designed machines were named for CALifornia University CycloTRONS. While the use of mass spectrometry had been known and used since 1918, this application on the scale Lawrence was proposing was going way beyond

  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. 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.

  15. 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...

  16. 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...

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

    Office of Scientific and Technical Information (OSTI)

    for parametric failure of LED products has largely been focused on lumen maintenance. ... Subject: Light-emitting diode (LED), color shift, color stability, color maintenance, ...

  18. 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...

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

    Office of Scientific and Technical Information (OSTI)

    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 different ...

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

    Office of Scientific and Technical Information (OSTI)

    of LED Roadway Lighting on the Golden Gate Bridge Citation Details In-Document Search Title: Technical Feasibility Assessment of LED Roadway Lighting on the Golden Gate ...

  1. 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)...

  2. 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 ...

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

    Office of Environmental Management (EM)

    REA Refrigerated Display Case LED Lighting Performance Specification REA Refrigerated Display Case LED Lighting Performance Specification A Retailer Energy Alliances (REA) Project ...

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

    Energy Savers [EERE]

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

  5. New GATEWAY Report Monitors LED System Performance in a High...

    Office of Environmental Management (EM)

    GATEWAY Report Monitors LED System Performance in a High-Temperature Environment New GATEWAY Report Monitors LED System Performance in a High-Temperature Environment May 11, 2015 - ...

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

    Office of Environmental Management (EM)

    University-Led Projects to Create More Efficient, Lower Cost Concentrating Solar Power Systems Energy Department Announces New University-Led Projects to Create More Efficient, ...

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

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

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

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

    Energy Savers [EERE]

    HQ - Results - LED Troffer, Cove (linear) and Downlight Retrofit Kits: Princeton Icahn Laboratory High Impact Technology HQ - Results - LED Troffer, Cove (linear) and Downlight ...

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

    Office of Environmental Management (EM)

    NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating Carbon-Capture Technologies NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating Carbon-Capture ...

  10. 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 PDF icon LED Efficacy-What America Stands to Gain November 2015.pdf

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

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

    of LED penetration in 10 lighting applications, as well as the potential energy savings if each of these applications had switched completely to the best available LED ...

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

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

    LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC ...

  13. 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 ... Home Library Press Releases Consortium Led by University of California, Berkeley ... ...

  14. 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 ...

  15. 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 ...

  16. 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 PDF icon 2005deerfuchinoue.pdf ...

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

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

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

  18. 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?

  19. 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...

  20. 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,...

  1. SciTech Connect: Sign In

    Office of Scientific and Technical Information (OSTI)

    If you already have a SciTech Connect account, enter your email address and password below to sign in. You will be taken to your account management screen, where you can view saved ...

  2. SciTech Connect: Sign In

    Office of Scientific and Technical Information (OSTI)

    your email address and password below to sign in. You will be taken to your account management screen, where you can view saved searches, export bibliographies and create content...

  3. NERSC Signs Supercomputing Agreement with Cray

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

    Signs Supercomputing Agreement with Cray NERSC Signs Supercomputing Agreement with Cray June 27, 2012 NERSC Contact: Linda Vu, lvu@lbl.gov, +1 510 495 2402 Cray Media: Nick Davis pr@cray.com +1 206 701 2123 The Department of Energy's National Energy Research Scientific Computing Center (NERSC) announced today that Cray will install its next-generation supercomputer computing system. Consisting of products and services, the multi-year, multi-phase project is valued at more than $40 million. It

  4. 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.

  5. 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.

  6. Demonstration Assessment of Light Emitting Diode (LED) Street Lighting,

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

    Final Report | Department of Energy Demonstration Assessment of Light Emitting Diode (LED) Street Lighting, Final Report Demonstration Assessment of Light Emitting Diode (LED) Street Lighting, Final Report This report summarizes an LED street lighting assessment project conducted to study the applicability of LED luminaires in a street lighting application. PDF icon emerging_tech_report_led_streetlighting.pdf More Documents & Publications Effective White Light Options for Parking Area

  7. Model Specification for LED Roadway Luminaires | Department of Energy

    Energy Savers [EERE]

    Research & Development » Technology Application R&D » Municipal Consortium » Resources » Model Specification for LED Roadway Luminaires Model Specification for LED Roadway Luminaires The DOE Municipal Solid-State Street Lighting Consortium's Model Specification for LED Roadway Luminaires enables cities, utilities, and other state and local agencies to assemble effective bid documents for LED street lighting products. The original version of the Model Specification for LED Roadway

  8. LED T8 Replacement Lamps | Department of Energy

    Energy Savers [EERE]

    LED 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. PDF icon LED T8 Replacement Lamps (April 2010) More Documents & Publications Emerging Lighting Technology General Service LED Lamps Guiding Market Introduction of High-Performance SSL Products

  9. Observations of Velocity Conditions near a Hydroelectric Turbine Draft Tube Exit using ADCP Measurements

    SciTech Connect (OSTI)

    Cook, Christopher B.; Richmond, Marshall C.; Serkowski, John A.

    2007-10-01

    Measurement of flow characteristics near hydraulic structures is an ongoing challenge because of the need to obtain rapid measurements of time-varying velocity over a relatively large spatial domain. This paper discusses use of an acoustic Doppler current profiler (ADCP) to measure the rapidly diverging flow exiting from an operating hydroelectric turbine draft tube exit. The resolved three-dimensional velocity vectors show a highly complex and helical flow pattern developed near to and downstream of the exit. Velocity vectors were integrated across the exit and we computed an uneven percentage of flow (67%/33%) passing through the two draft tube barrels at a mid-range turbine discharge, consistent with physical model results. In addition to the three-dimensional velocity vectors, the individual one-dimensional velocities measured by each of the four ADCP beams can be separately used as calibration and validation datasets for numerical and physical models. This technique is demonstrated by comparing along-beam ADCP velocity measurements to data collected in a scaled physical model.

  10. LED R&D | Department of Energy

    Office of Environmental Management (EM)

    LED R&D LED R&D 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. Novel Transparent Phosphor

  11. United States and Italy Sign Agreements to Advance Developments...

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

    Italy Sign Agreements to Advance Developments in Nuclear Energy United States and Italy Sign Agreements to Advance Developments in Nuclear Energy September 30, 2009 - 12:00am ...

  12. United States and France Sign Joint Statement on Civil Liability...

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

    and France Sign Joint Statement on Civil Liability for Nuclear Damage United States and France Sign Joint Statement on Civil Liability for Nuclear Damage PDF icon Joint Statement ...

  13. Secretaries Chu and Donovan Sign Agreement to Help Working Families...

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

    Donovan Sign Agreement to Help Working Families Weatherize Their Homes Secretaries Chu and Donovan Sign Agreement to Help Working Families Weatherize Their Homes May 6, 2009 - ...

  14. DOE Signing Paves the Way for Funding, Construction of Innovative...

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

    Signing Paves the Way for Funding, Construction of Innovative Clean Coal Plant in Florida DOE Signing Paves the Way for Funding, Construction of Innovative Clean Coal Plant in ...

  15. Global Science Gateway Agreement Signed in London | Department...

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

    Global Science Gateway Agreement Signed in London Global Science Gateway Agreement Signed in London January 22, 2006 - 10:15am Addthis DOE Partners With British Library on...

  16. President Ford Signs the Energy Reorganization Act of 1974 |...

    National Nuclear Security Administration (NNSA)

    Ford Signs the Energy Reorganization Act of 1974 | National Nuclear Security ... Home About Us Our History NNSA Timeline President Ford Signs the Energy ...

  17. Energy Department to Sign MOU with Interior Department to Assist...

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

    to Sign MOU with Interior Department to Assist Indian Tribes to Develop Energy Resources Energy Department to Sign MOU with Interior Department to Assist Indian Tribes to Develop ...

  18. Curiosity rover zaps Mars for life signs

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

    Curiosity rover zaps Mars for life signs Mars rover depends on three LANL technologies Curiosity zaps Mars for vital signs: Designed by Lab team, ChemCam looks for crucial elements such as carbon, nitrogen and oxygen. July 30, 2012 Curiosity rover zapping rocks on Mars Power up! The third part of the "LANL Visits Mars" trio is an essential component of the heat-producing Multi-Mission Radioisotope Thermoelectric Generator unit. It powers the rover and keeps the instruments from

  19. 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...

  20. 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...

  1. Demonstration Assessment of Light-Emitting Diode (LED) Parking...

    Office of Scientific and Technical Information (OSTI)

    Diode (LED) Parking Lot Lighting at T.J.Maxx in Manchester, NH Phase I A report describing the process and results of replacing existing parking lot lighting, looking at a LED ...

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

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

    Portland's LED Streetlight Conversion DOE Publishes GATEWAY Report on Portland's LED Streetlight Conversion October 5, 2015 - 11:08am Addthis The U.S. Department of Energy has ...

  3. Low-Cost LED Luminaire for General Illumination

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

    paulfini@cree.com CREE SBTC Low-Cost LED Luminaire for General Illumination 2014 Building ... end date: 73114 Key Milestones 1. White LED with custom primary optic providing 95% ...

  4. 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 ...

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

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

    gap," a portion of the spectrum where LED efficiency plunges, simulations at the U.S. ... Instead, most white lighting today comes from blue LED light passed through a phosphor, a ...

  6. 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.

  7. 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 ...

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

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

    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 ...

  9. 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 ...

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

    Office of Scientific and Technical Information (OSTI)

    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. Authors: ...

  11. 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.

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

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

    over the past two years. Red. Yellow. Green. What LED traffic signals don't say: Made in USA. That is changing. Dialight Corporation, an LED lighting manufacturer with U.S....

  13. LED Luminaire Lifetime: Recommendations for Testing and Reporting

    Energy Savers [EERE]

    LED LUMINAIRE LIFETIME: RECOMMENDATIONS FOR TESTING AND REPORTING SOLID-STATE LIGHTING PRODUCT QUALITY INITIATIVE THIRD EDITION SEPTEMBER 2014 Next Generation Lighting Industry Alliance LED Systems Reliability Consortium i TABLE OF CONTENTS Acknowledgements.................................................................................................................................................................................... ii 1 Introduction and summary

  14. 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...

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    Below is the text-alternative version of the Evaluating LED Street Lighting Solutions webcast, held July 20, 2010.

  16. 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

  17. High Efficiency Driving Electronics for General Illumination LED Luminaires

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

    (Technical Report) | SciTech Connect High Efficiency Driving Electronics for General Illumination LED Luminaires Citation Details In-Document Search Title: High Efficiency Driving Electronics for General Illumination LED Luminaires New generation of standalone LED driver platforms developed, which are more efficient These LED Drivers are more efficient (≥90%), smaller in size ( 0.15 in3/watt), lower in cost ( 12 cents/watt in high volumes in millions of units). And these products are very

  18. High Efficiency Driving Electronics for General Illumination LED Luminaires

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect SciTech Connect Search Results Technical Report: High Efficiency Driving Electronics for General Illumination LED Luminaires Citation Details In-Document Search Title: High Efficiency Driving Electronics for General Illumination LED Luminaires New generation of standalone LED driver platforms developed, which are more efficient These LED Drivers are more efficient (≥90%), smaller in size ( 0.15 in3/watt), lower in cost ( 12 cents/watt in high volumes in

  19. Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the "LED Replacements for Linear Fluorescent Lamps" webcast, held June 20, 2011.

  20. Text-Alternative Version: LEDs for Interior Office Applications

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the LEDs for Interior Office Applications webcast, held March 18, 2010.

  1. 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.

  2. Simple Modular LED Cost Model | Department of Energy

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

    Tools » Simple Modular LED Cost Model Simple Modular LED Cost Model 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 elements and includes preliminary raw data and manufacturing process flow, which provide a starting point and can be customized by the user to model different processes, materials, and equipment. The tool enables those involved in the

  3. DOE Publishes Technical Brief Clarifying Misconceptions about Safety of LED

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

    Lighting | Department of Energy Technical Brief Clarifying Misconceptions about Safety of LED Lighting DOE Publishes Technical Brief Clarifying Misconceptions about Safety of LED Lighting October 22, 2014 - 12:00pm Addthis 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 Relationship Between CCT, CRI, Optical Safety, Material Degradation, and

  4. 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 lighting market since the early days of LED lighting, but improved efficacy, colors, controls, and capabilities have brought them greater acclaim and expanded the range of potential applications. There are three basic categories of color-tunable products: Dim-to-warm These products, also referred to as warm dim, blackbody

  5. High Impact Technology HQ - Results - LED Troffer, Cove (linear) and

    Energy Savers [EERE]

    Downlight Retrofit Kits: Princeton Icahn Laboratory | Department of Energy HQ - Results - LED Troffer, Cove (linear) and Downlight Retrofit Kits: Princeton Icahn Laboratory High Impact Technology HQ - Results - LED Troffer, Cove (linear) and Downlight Retrofit Kits: Princeton Icahn Laboratory PDF icon LED Troffer, Cove (linear) and Downlight Retrofit Kits: Princeton Icahn Laboratory More Documents & Publications DOE Booth Presentations From Grainger Show 2015 Downloads Exterior LED

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

    Energy Savers [EERE]

    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

  7. REA Refrigerated Display Case LED Lighting Performance Specification |

    Energy Savers [EERE]

    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 PDF icon rea_refrig_display_spec.pdf 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

  8. Financing Guidance for LED Street Lighting Programs | Department of Energy

    Office of Environmental Management (EM)

    Financing Guidance for LED Street Lighting Programs Financing Guidance for LED Street Lighting Programs photo of an urban roadway at night lined with LED streetlights. 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

  9. Maintenance Practices for LED Streetlights | Department of Energy

    Office of Environmental Management (EM)

    Information Resources » Webcasts » Maintenance Practices for LED Streetlights Maintenance Practices for LED Streetlights 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 transition to LED street lighting. Presenters Glenn Cooper of the City of Boston, Stephen Crume of the City of Seattle, and Patrick Batte of the City of Las Vegas discussed actual field

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

    Office of Environmental Management (EM)

    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

  11. Philadelphia International Airport Apron Lighting: LED System Performance

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

    in a Trial Installation | Department of Energy Philadelphia International Airport Apron Lighting: LED System Performance in a Trial Installation Philadelphia International Airport Apron Lighting: LED System Performance in a Trial Installation PDF icon 2015_gateway_philadelphia-airport.pdf PDF icon gateway_philadelphia-airport_brief.pdf More Documents & Publications LED Performance Under Tough Conditions December 2015 Postings 2015 ARTICLES

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

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

    Department of Energy Princeton University and DOE GATEWAY Demonstrations LEDs Go Ivy League: Princeton University and DOE GATEWAY Demonstrations 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 uses, benefits, and progress of LED lighting at Princeton

  13. 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.

  14. 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

  15. Report 23: Photometric Testing of White Tunable LED Luminaires | Department

    Energy Savers [EERE]

    of Energy 3: Photometric Testing of White Tunable LED Luminaires Report 23: Photometric Testing of White Tunable LED Luminaires PDF icon caliper_23_white-tunable-led-luminaires.pdf More Documents & Publications September 2015 Postings January 2016 POSTINGS 2015 SSL TECHNOLOGY DEVELOPMENT WORKSHOP PRESENTATIONS - Day 2

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

    Energy Savers [EERE]

    Department of Energy Princeton University and DOE GATEWAY Demonstrations LEDs Go Ivy League: Princeton University and DOE GATEWAY Demonstrations 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 uses, benefits, and progress of LED lighting at Princeton

  17. Thermoacoustic limit cycles in a premixed laboratory combustor with open and choked exits

    SciTech Connect (OSTI)

    Hield, Peter A.; Brear, Michael J.; Jin, Seong Ho

    2009-09-15

    This paper presents an experimental and theoretical investigation of the response of a turbulent premixed flame during thermoacoustic limit cycle in a simple, laboratory combustor. The flame dynamics are examined using high-speed pressure transducers and CH* chemiluminescence. The so-called 'interaction index' and time delay between the acoustic velocity fluctuations at the flame holder and the flame's overall heat release fluctuations are then determined. A wide range of operating conditions, traversing the combustor's flammability limits in Mach number and equivalence ratio, are studied for four different combustor exits, including one where the exit is choked. In all cases the time delay correlates very well with the amplitude of the velocity fluctuations. There is also some correlation between the interaction index and these velocity fluctuations, but this is less clear. These results suggest a novel, nonlinear flame model, derived entirely empirically. An existing low-order thermoacoustic model is then extended to include convection and dispersion of entropy fluctuations downstream of the flame, enabling the effect of the choked nozzle to be examined. The novel nonlinear flame model is integrated into the low-order thermoacoustic model, and used to investigate the experimentally observed thermoacoustic limit cycles. The model correctly simulates the observed switch to a low-frequency, entropically driven instability observed when the combustor exit is choked. (author)

  18. 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

  19. LED Performance Specification Series: T8 Replacement Lamps

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

    Photo credit: PNNL LED T8 replacements may contain dozens of high power LEDs or hundreds of 5mm LEDs behind a clear or frosted lens, all in a medium bi-pin T8 lamp package. Table 1. CALiPER Test Results for 4-foot LED T8 Replacements with Fluorescent Benchmarks Performance Characteristics LED T8 Replacements Fluorescent Benchmarks Range (12 lamps tested) Average Mfr. Data (75 lamps) CALiPER (2 fxtures tested) Initial Lamp Light Output (lm) 345 - 1,579 1,111 2,778 3,091 Initial 2-Lamp System

  20. LED Linear Lamps and Troffer Lighting | Department of Energy

    Energy Savers [EERE]

    Linear Lamps and Troffer Lighting LED Linear Lamps and Troffer Lighting View the video about CALiPER Series 21 on LED Linear Lamps and Troffer Lighting. The CALiPER program performed a series of investigations on linear LED lamps. Each report in the series covers the performance of up to 31 linear LED lamps, which were purchased in late 2012 or 2013. The first report focuses on bare lamp performance of LED T8 replacement lamps and subsequent reports examine performance in various troffers, as

  1. 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.

  2. Black Hills Power - Commercial Energy Efficiency Programs | Department...

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

    4 - 16 Metal Halide Fixtures: 17 - 65 Lighting Controls: 12 - 35 LED Exit Signs: 6 fixture Other LED: 10 - 100 Motors Totally Enclosed Fan-Cooled: 10 - 600 Open...

  3. START Signed | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    START Signed | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog

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

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

    HVAC Units: February 11, 2010 | Department of Energy (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 Units: February 11, 2010 PDF icon nationwide_nonavailability_waiver_02-11-2010 More Documents & Publications Nationwide Categorical Waiver Nationwide Nonavailability Waiver: February 11, 2010 (Please note, the waiver for LED traffic signals has been

  5. 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 27, 2013 - 12:00am Addthis Jim Brodrick, Lighting Program Manager A Wisconsin-based company is developing an innovative way to reduce manufacturing costs of light-emitting diodes (LEDs). With help from a $2.4 million Energy Department research grant that is matched dollar-for-dollar by the company, researchers at Eaton Corporation in Menomonee Falls, Wisconsin, are creating a manufacturing process that not only

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

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

    (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,

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

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

    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

  8. 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

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

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

    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

  10. Considering LEDs for Street and Area Lighting | Department of Energy

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

    Information Resources » Videos » Considering LEDs for Street and Area Lighting Considering LEDs for Street and Area Lighting View Jim Brodrick's keynote video from the September 2009 IES Street and Area Lighting Conference in Philadelphia. 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 Presentations Publications Webcasts Videos Tools

  11. DOE Publishes GATEWAY Report on Successful LED Wall Washer Retrofit |

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

    Department of Energy Successful LED Wall Washer Retrofit DOE Publishes GATEWAY Report on Successful LED Wall Washer Retrofit August 5, 2015 - 1:00pm Addthis The U.S. Department of Energy has released a report on a GATEWAY demonstration, in which maintenance and energy costs were significantly reduced 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. The project

  12. Model Specification for LED Roadway Luminaires Webcast | Department of

    Energy Savers [EERE]

    Energy Webcasts » Model Specification for LED Roadway Luminaires Webcast Model Specification for LED Roadway Luminaires Webcast This November 15, 2011 webcast presented information about the Model Specification for LED Roadway Luminaires developed by DOE's Municipal Solid-State Street Lighting Consortium. During the webcast, Jason Tuenge of Pacific Northwest National Laboratory provided an overview of the model specification and explained how it can be customized to meet the particular

  13. Municipal Consortium Releases Updated Model Specification for LED Roadway

    Energy Savers [EERE]

    Luminaires | Department of Energy for LED Roadway Luminaires Municipal Consortium Releases Updated Model Specification for LED Roadway Luminaires July 10, 2014 - 10:23am Addthis The U.S. Department of Energy's Municipal Solid-State Street Lighting Consortium (MSSLC) has released the first updated version of its Model Specification for LED Roadway Luminaires. A "living document" that's updated as needed to reflect changes in technologies and associated standards, and to incorporate

  14. Dimming LEDs: What You Need to Know | Department of Energy

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

    Information Resources » Webcasts » Dimming LEDs: What You Need to Know Dimming LEDs: What You Need to Know 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 technologies and equipment and some of the factors that lead to performance problems and incompatibilities. Michael Poplawski of Pacific Northwest National Laboratory walked through examples of what can

  15. Secretary Moniz Applauds Detroit's LED Street Lighting Upgrades |

    Energy Savers [EERE]

    Department of Energy Secretary Moniz Applauds Detroit's LED Street Lighting Upgrades Secretary Moniz Applauds Detroit's LED Street Lighting Upgrades June 16, 2014 - 10:46am Addthis Secretary of Energy Ernest Moniz visited Detroit on May 22, 2014, to mark the city's progress installing energy-efficient LED streetlights in an update of its largely broken public lighting system, speaking at the Detroit Area Pre-College Engineering Program. Like so many cities across the country, Detroit is

  16. Successful Selection of LED Streetlight Luminaires: Optimizing Illumination

    Energy Savers [EERE]

    and Economic Performance | Department of Energy 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 a typical

  17. Reducing LED Costs Through Innovation | Department of Energy

    Energy Savers [EERE]

    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 cuts a thin steel plate that will be formed into lighting fixture housing. Wisconsin-based Eaton Corporation is developing a new manufacturing process that streamlines LED fixture designs. | Photo courtesy of Eaton Corporation A combination solid-state laser turret cutter and stamping machine cuts a thin steel plate that will be

  18. LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting |

    Energy Savers [EERE]

    Department of Energy LUMINAIRE LIFETIME: Recommendations for Testing and Reporting LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting 2011 Solid-State Lighting Product Quality Initiative PDF icon led_luminaire-lifetime-guide_june2011.pdf More Documents & Publications System Reliability Model for Solid-State Lighting Luminaires LED Luminaire Lifetime: Recommendations For Testing and Reporting System Reliability Model for Solid-State Lighting Luminaires

  19. LED Replacements for Linear Fluorescent Lamps Webcast | Department of

    Energy Savers [EERE]

    Energy Replacements for Linear Fluorescent Lamps Webcast LED Replacements for Linear Fluorescent Lamps Webcast 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 Facts-listed products as well as products evaluated in the latest CALiPER reports. Eric Richman, also of PNNL, reported on a recently completed GATEWAY demonstration project, in which LED and

  20. LED Street Lighting Conversion Workshop Presentations | Department of

    Energy Savers [EERE]

    Energy Research & Development » Technology Application R&D » Municipal Consortium » News & Events » LED Street Lighting Conversion Workshop Presentations LED Street Lighting Conversion Workshop Presentations This page provides links to the presentations given at the National League of Cities Mobile Workshop, LED Street Lighting Conversion: Saving Your Community Money, While Improving Public Safety, held November 13, 2013, in Seattle, WA. Presentations and Materials State of

  1. LEDs Go Ivy League: Princeton's Dillon Gymnasium | Department of Energy

    Energy Savers [EERE]

    Princeton's Dillon Gymnasium LEDs Go Ivy League: Princeton's Dillon Gymnasium 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 describes the challenges of the installation, which included the need for a custom interface so the lighting controls would operate within in the Lutron Ecosystem

  2. LEDs for Interior Office Applications Webcast | Department of Energy

    Energy Savers [EERE]

    LEDs for Interior Office Applications Webcast LEDs for Interior Office Applications Webcast In this March 18, 2010 webcast, Jason Tuenge and Michael Myer of Pacific Northwest National Laboratory described the performance and economic considerations of replacing either 4' T8 lamps or entire troffer-type luminaires with LED products. The webcast also compared manufacturer performance claims about these types of products against test results from DOE's CALiPER program. View presentation slides (PDF

  3. 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 developed, which is important for industry because accurate, repeatable, standardized test methods enable accurate comparisons. Measuring and reporting performance of LED color-tunable luminaires poses a new challenge, since the range of possibilities is near limitless. With variable spectral power distribution (i.e.,

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

    Office of Environmental Management (EM)

    Carbon-Capture Technologies | Department of Energy NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating Carbon-Capture Technologies NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating Carbon-Capture Technologies April 2, 2014 - 9:31am Addthis NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating Carbon-Capture Technologies Check out NETL's latest video on CCSI. In 2011, the Office of Fossil Energy's National Energy Technology Laboratory (NETL)

  5. Exit blade geometry and part-load performance of small axial flow propeller turbines: An experimental investigation

    SciTech Connect (OSTI)

    Singh, Punit; Nestmann, Franz

    2010-09-15

    A detailed experimental investigation of the effects of exit blade geometry on the part-load performance of low-head, axial flow propeller turbines is presented. Even as these turbines find important applications in small-scale energy generation using micro-hydro, the relationship between the layout of blade profile, geometry and turbine performance continues to be poorly characterized. The experimental results presented here help understand the relationship between exit tip angle, discharge through the turbine, shaft power, and efficiency. The modification was implemented on two different propeller runners and it was found that the power and efficiency gains from decreasing the exit tip angle could be explained by a theoretical model presented here based on classical theory of turbomachines. In particular, the focus is on the behaviour of internal parameters like the runner loss coefficient, relative flow angle at exit, mean axial flow velocity and net tangential flow velocity. The study concluded that the effects of exit tip modification were significant. The introspective discussion on the theoretical model's limitation and test facility suggests wider and continued experimentation pertaining to the internal parameters like inlet vortex profile and exit swirl profile. It also recommends thorough validation of the model and its improvement so that it can be made capable for accurate characterization of blade geometric effects. (author)

  6. 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...

  7. 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,...

  8. 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...

  9. 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...

  10. 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...

  11. 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...

  12. 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...

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

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: LED, ssl, solid-state, lighting, GATEWAY, CALiPER, report, color, shift, maintenance Word Cloud More Like This Full ...

  14. Demonstration Assessment of Light-Emitting Diode (LED) Street...

    Office of Scientific and Technical Information (OSTI)

    Street Lighting Host Site: Lija Loop, Portland, Oregon Citation Details In-Document Search Title: Demonstration Assessment of Light-Emitting Diode (LED) Street Lighting Host Site: ...

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

    Office of Scientific and Technical Information (OSTI)

    Diode (LED) Parking Lot Lighting in Leavenworth, KS This report describes the process and results of a demonstration of solid-state lighting (SSL) technology in a ...

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

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

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

  17. Nationwide Limited Public Interest Waiver for LED and HVAC Units...

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

    Nationwide Nonavailability Waiver: February 11, 2010 (Please note, the waiver for LED traffic signals has been withdrawn effective December 1, 2010) Nationwide...

  18. 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...

  19. Secretary Chu Announces Funding for 71 University-Led Nuclear...

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

    Secretary Chu Announces Funding for 71 University-Led Nuclear Research and Development Projects WASHINGTON, DC U.S. Energy Secretary Steven Chu today announced the selection of ...

  20. 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.

  1. 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.

  2. 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...

  3. 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 ...

  4. 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.

  5. 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...

  6. LED Lights for All Occasions | Department of Energy

    Office of Environmental Management (EM)

    Lights for All Occasions LED Lights for All Occasions November 15, 2012 - 1:15pm Addthis With such a variety of lights available, LEDs are a perfect choice for holiday lighting. | Photo courtesy of ©iStockphoto.com/Birzio With such a variety of lights available, LEDs are a perfect choice for holiday lighting. | Photo courtesy of ©iStockphoto.com/Birzio Elizabeth Spencer Communicator, National Renewable Energy Laboratory What does this mean for me? Energy-efficient LED lights can be used to

  7. 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.

  8. Have You Used LED Light Strings? | Department of Energy

    Office of Environmental Management (EM)

    Used LED Light Strings? Have You Used LED Light Strings? December 3, 2009 - 7:30am Addthis This week, you read about LED holiday light strings, which can use 90% less energy than regular incandescent light strings. You may even be able to save on the initial costs with rebates from stores or your utility; check to find out what's being offered in your area. Have you used LED light strings? Tell us what you think of them. Each Thursday, you have the chance to share your thoughts on a question

  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. DOE Zero Ready Home Case Study: John Hubert Associates, EXIT-0, North Cape May, NJ

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

    Hubert Associates EXIT-0 House North Cape May, NJ DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are

  11. 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.

  12. 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.

  13. 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.

  14. U.S. and Russia Sign Plutonium Disposition Agreement | National...

    National Nuclear Security Administration (NNSA)

    Our Jobs Our Jobs Working at NNSA Blog Home About Us Our History NNSA Timeline U.S. and Russia Sign Plutonium Disposition Agreement U.S. and Russia Sign Plutonium...

  15. United States and France Sign Joint Statement on Civil Liability...

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

    France Sign Joint Statement on Civil Liability for Nuclear Damage United States and France Sign Joint Statement on Civil Liability for Nuclear Damage August 29, 2013 - 1:36pm ...

  16. President Obama Signs Two Bills to Boost Small Hydropower Projects...

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

    President Obama Signs Two Bills to Boost Small Hydropower Projects August 14, 2013 - 12:06pm Addthis President Obama on August 9 signed into law two bills aimed at boosting ...

  17. Y-12, UT sign agreement to continue, expand collaborative work...

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

    UT sign agreement to ... Y-12, UT sign agreement to continue, expand collaborative work Posted: December 18, 2014 - 6:22pm UT Chancellor Jimmy G. Cheek (left) and CNS President and...

  18. Major New Mexico employers sign STEM education proclamation

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

    Major New Mexico employers sign STEM education proclamation Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit Major New Mexico employers sign STEM education proclamation Press conference to be held Nov. 22 November 1, 2014 Top section of a one-page proclamation recently signed by major New Mexico employers. Top section of a one-page proclamation recently signed by major New Mexico employers.

  19. August 4, 1977: President Carter signs the Department of Energy

    Energy Savers [EERE]

    Organization Act | Department of Energy 4, 1977: President Carter signs the Department of Energy Organization Act August 4, 1977: President Carter signs the Department of Energy Organization Act August 4, 1977: President Carter signs the Department of Energy Organization Act August 4, 1977 President Carter signs the Department of Energy Organization Act. The Federal Energy Administration and Energy Research and Development Administration are abolished

  20. DOE_LG_Signed_Settlement_Agreement.pdf | Department of Energy

    Office of Environmental Management (EM)

    LG_Signed_Settlement_Agreement.pdf DOE_LG_Signed_Settlement_Agreement.pdf digitalsender PDF icon DOE_LG_Signed_Settlement_Agreement.pdf More Documents & Publications jrevSETTLEMENT0105.PDF&#0; Application for Presidental Permit OE Docket No. PP-230-4 International Transmission Company: Settlement Agreement Settlement Agreement, Sandia Corporation - SSA-2011-01

  1. 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.

  2. Exit chimney joint and method of forming the joint for closed circuit steam cooled gas turbine nozzles

    DOE Patents [OSTI]

    Burdgick, Steven Sebastian (Schenectady, NY); Burns, James Lee (Schenectady, NY)

    2002-01-01

    A nozzle segment for a gas turbine includes inner and outer band portions and a vane extending between the band portions. The inner and outer band portions are each divided into first and second plenums separated by an impingement plate. Cooling steam is supplied to the first cavity for flow through the apertures to cool the outer nozzle wall. The steam flows through a leading edge cavity in the vane into the first cavity of the inner band portion for flow through apertures of the impingement plate to cool the inner nozzle wall. Spent cooling steam flows through a plurality of cavities in the vane, exiting through an exit chimney in the outer band. The exit chimney is secured at its inner end directly to the nozzle vane wall surrounding the exit cavities, to the margin of the impingement plate at a location intermediate the ends of the exit chimney and to margins of an opening through the cover whereby each joint is externally accessible for joint formation and for subsequent inspection.

  3. 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.

  4. 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.

  5. 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

  6. Wisconsin LED Plant Benefits from Recovery Act | Department of Energy

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

    Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this mean for me? LED lights emit more light, have a longer life and provide anywhere from 50 to 70 percent in energy savings. Rudd Lighting has seen a boost from cities tapping Recovery Act funds and seeking energy efficient lighting that will reduce costs. The BetalLED facility, which produced hundreds of thousands of LED products last year, employs about 600 people, and for every job in the plant, eight to 10 more

  7. 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.

  8. 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...

  9. 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...

  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. 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...

  12. 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...

  13. 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 ...

  14. 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.

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

    Office of Scientific and Technical Information (OSTI)

    Accent Lighting at the Field Museum in Chicago, IL Citation Details In-Document Search Title: Demonstration Assessment of Light-Emitting Diode (LED) Accent Lighting at the Field ...

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

    Office of Scientific and Technical Information (OSTI)

    Roadway Lighting at the I-35W Bridge, Minneapolis, MN Citation Details In-Document Search Title: Demonstration Assessment of Light-Emitting Diode (LED) Roadway Lighting at the ...

  17. 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...

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    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...

  19. 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.

  20. 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.

  1. 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...

  2. 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 ...

  3. 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...

  4. Better than CFL? Dimmable LED Downlights in Hospitality Facilities Webinar

    Broader source: Energy.gov [DOE]

    LEDs represent less than 1% of the installed base of U.S. downlights, which in 2012 numbered about 700 million. In hospitality facilities, past efforts to reduce lighting energy use have mainly...

  5. 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.

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

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

    Lighting | Department of Energy 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 of observations and results obtained from a lighting demonstration project conducted under a U.S. Department of Energy program. The program supports demonstrations of high-performance solid-state lighting (SSL) products in order to develop empirical data and experience with

  7. 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.

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

    Office of Scientific and Technical Information (OSTI)

    Report) | SciTech Connect 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

  9. 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.

  10. 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

  11. 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.

  12. Municipal Consortium LED Street Lighting Workshop Presentations and

    Energy Savers [EERE]

    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,

  13. Municipal Consortium LED Street Lighting Workshop Presentations and

    Energy Savers [EERE]

    Materials-Dallas, TX | Department of Energy Dallas, TX Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Dallas, TX This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium Workshop held in Dallas March 15-16, 2012. Presentations and Materials Workshop Agenda ONCOR LED Streetlight Pilot & Technical Evaluation Update Michael Navarro, ONCOR Reading, Understanding, and Applying the LM-80 Standard Chad

  14. Next-Generation LED Package Architectures Enabled by Thermally Conductive

    Energy Savers [EERE]

    Transparent Encapsulants | Department of Energy LED Package Architectures Enabled by Thermally Conductive Transparent Encapsulants Next-Generation LED Package Architectures Enabled by Thermally Conductive Transparent Encapsulants Lead Performer: Momentive Performance Materials Quartz, Inc. DOE Total Funding: $1,497,255 Cost Share: $512,700 Project Term: 10/1/2014 - 3/31/2016 Funding Opportunity: SSL R&D Funding Opportunity Announcement (FOA) (DE-FOA-0000973) Project Objective This

  15. Keeping Pace with LED Lighting Trends | Department of Energy

    Energy Savers [EERE]

    Keeping Pace with LED Lighting Trends Keeping Pace with LED Lighting Trends October 23, 2013 - 10:41am Addthis This year's SSL Market Introduction Workshop will take place in Portland, Oregon. | Photo courtesy of Travel Portland This year's SSL Market Introduction Workshop will take place in Portland, Oregon. | Photo courtesy of Travel Portland Jim Brodrick Jim Brodrick Lighting Program Manager Rapid advances in solid-state lighting (SSL) technology are reducing the cost, improving the

  16. 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.

  17. 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.

  18. Idaho Settlement Agreement Signed at Idaho National Laboratory | Department

    Office of Environmental Management (EM)

    of Energy Settlement Agreement Signed at Idaho National Laboratory Idaho Settlement Agreement Signed at Idaho National Laboratory Idaho Settlement Agreement was signed by DOE and the state of Idaho. It outlined legally binding spent nuclear fuel and waste removal milestones that must be accomplished by 2035. PDF icon 1995 Settlement Agreement More Documents & Publications Idaho EIS-0251: Final Environmental Impact Statement EIS-0251: Record of Decision

  19. Secretary Chu Signs Memorandum of Cooperation with Chilean Energy Minister

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

    Tokman | Department of Energy Signs Memorandum of Cooperation with Chilean Energy Minister Tokman Secretary Chu Signs Memorandum of Cooperation with Chilean Energy Minister Tokman June 23, 2009 - 12:00am Addthis Washington, DC - The Department of Energy announced today that U.S. Energy Secretary Steven Chu and Minister Marcelo Tokman of the Chilean National Energy Commission signed a Memorandum of Cooperation to further collaboration between the two nations on a series of energy issues. The

  20. United States and Italy Sign Nuclear Energy Agreements | Department of

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

    Energy Italy Sign Nuclear Energy Agreements United States and Italy Sign Nuclear Energy Agreements September 30, 2009 - 1:23pm Addthis U.S. Secretary of Energy Steven Chu and Italian Minister for Economic Development Claudio Scajola today signed two important nuclear energy agreements that may lead to construction of new nuclear power plants and improved cooperation on advanced nuclear energy systems and fuel cycle technologies in both countries. The U.S.-Italy Joint Declaration Concerning

  1. Media Advisory: Jefferson Lab Signs Partnership Agreement With Virginia

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

    STEAM Academy | Jefferson Lab Advisory: Jefferson Lab Signs Partnership Agreement With Virginia STEAM Academy Date: Monday, Nov. 26, 2012 Time: The signing will take place at 2:30 p.m. Place: CEBAF Center at Jefferson Lab, 12000 Jefferson Avenue, Newport News, VA 23606 Event: Jefferson Science Associates/Jefferson Lab will sign a Memorandum of Understanding (MOU) with the Virginia Science Technology Engineering and Applied Mathematics (STEAM) Academy. The academy, a proposed four-year

  2. Energy Department and Edison Electric Institute Sign Agreement to Advance

    Office of Environmental Management (EM)

    Electric Vehicle Technologies | Department of Energy Edison Electric Institute Sign Agreement to Advance Electric Vehicle Technologies Energy Department and Edison Electric Institute Sign Agreement to Advance Electric Vehicle Technologies June 8, 2015 - 9:30am Addthis NEWS MEDIA CONTACT (202) 586-4940 NEW ORLEANS -- Today, during a speech at the Edison Electric Institute (EEI) Annual Convention in New Orleans, LA, Energy Secretary Ernest Moniz signed a Memorandum of Understanding (MOU)

  3. MA-2009-000093Signed.pdf | Department of Energy

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

    More Documents & Publications Invitation to the 2012 DOE Project Management Workshop United States and France Sign Joint Statement on Civil Liability for Nuclear Damage FY2012 ...

  4. United States and Italy Sign Agreements to Advance Developments...

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

    today signed two important nuclear energy agreements that may lead to construction of new nuclear power plants and improved cooperation on advanced nuclear energy systems and fuel...

  5. Signs of a Heart Attack - HPMC Occupational Health Services

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

    attack. Heart Image Related Links: Presentation (pdf) Heart Attack Warning Signs Handout (pdf) "Cough CPR:" Urban Myth Heart Health Interactive Quizzes Last Updated 10202014 9:22...

  6. So you have customers signed up to participate, now what?

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

    Efficiency Programs Conference Call December 21, 2011 Facilitated by Summer Goodwin, BPA LESSONS LEARNED ON HOW TO KEEP CUSTOMERS ENGAGED So you have customers signed up to...

  7. 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...

  8. Sandia Energy - Inter-Agency Agreement Signed between DOE's Wind...

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

    Inter-Agency Agreement Signed between DOE's Wind and Water Power Program and Carderock Home Renewable Energy Energy Water Power Partnership News News & Events Inter-Agency...

  9. 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.

  10. Text-Alternative Version: Maintenance Practices for LED Streetlights |

    Energy Savers [EERE]

    Department of Energy Maintenance Practices for LED Streetlights Text-Alternative Version: Maintenance Practices for LED Streetlights Bruce Kinzey:So again, I want to welcome everyone to another MSSLC webinar. And we have a great one lined up today. At this point everyone is familiar with the fact that the solid-state street lighting is being installed by the thousands, hundreds of thousands in fact, around the country. I think everyone's also pretty familiar with the kinds of energy savings

  11. Save Money with LED Holiday Light Strings | Department of Energy

    Energy Savers [EERE]

    Money with LED Holiday Light Strings Save Money with LED Holiday Light Strings December 1, 2009 - 11:19am Addthis Allison Casey Senior Communicator, NREL It's hard to believe, but the holidays are in full swing and many of you are starting to decorate your homes. Those of you who started around Halloween are probably feeling pretty smart because you got your decorating done while the weather was nice. I see you there, snacking on your Thanksgiving leftovers, laughing at me shivering in the cold

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

    Office of Environmental Management (EM)

    LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! December 2, 2010 - 4:34pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Ed. Note cross posted from the Energy Savers Blog. Written by Allison Casey 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

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

    Office of Environmental Management (EM)

    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

  14. 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.

  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. 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.

  17. 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.

  18. EM-Led Radiological Incident Response Program Receives Honors

    Broader source: Energy.gov [DOE]

    A program led by EM’s Carlsbad Field Office (CBFO) that coordinates analytical capabilities throughout DOE for response to potential national radiological incidents recently received recognition for the best-in-track poster at a waste management conference earlier this year.

  19. 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 system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. The high-power warm-white LED product developed has been proven to have good reliability through extensive reliability tests. The new kilo-lumen package has been commercialized under the product name LUXEON M. As of the end of the program, the LUXEON M product has been released in the following CCT/CRI combinations: 3000K/70, 4000K/70, 5000K/70, 5700K/70, 2700K/80, 3000K/80 and 4000K/80. LM-80 tests for the products with CCTs of 4000 K and higher have reached 8500 hours, and per IESNA TM-21-11 have established an L70 lumen maintenance value of >51,000 hours at A drive current and up to 120 °C board temperature.

  20. DOE and State Sign Natural Resources Damages Settlement Agreement

    Broader source: Energy.gov [DOE]

    Officials from TDEC and DOE signed a Natural Resources Damages settlement agreement. The signed document designates DOE’s plans to compensate the state for ecological and human use impacts associated with contaminant releases from facilities at the Oak Ridge Reservation.

  1. 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.

  2. 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.

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

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

    October 8, 2014 Washington, D.C. Prepared For: U.S. Department of Energy Prepared By: LED Lighting Advisors Navigant Consulting, Inc. SB Consulting SSLS, Inc. December 8, 2014 i DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes

  4. 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.

  5. Department of Defense led Institutes for Manufacturing Innovation

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

    Adele Ratcliff Director, DoD Manufacturing Technology Program DOE and DOD Multi-topic Workshop Fort Worth, TX October 8 and 9, 2014 0 Department of Defense led Institutes for Manufacturing Innovation OSD Manufacturing Technology Office October 08, 2014 1 Creating an Innovation Ecosystem * A CEO: "can't predict when or where innovation happens." But - we do know key characteristics: * Close proximity is key * Design, make, learn cycle - must be quick * Ecosystem needs all aspects of

  6. Municipal Consortium LED Street Lighting Workshop Presentations and

    Energy Savers [EERE]

    Materials-Los Angeles, CA | Department of Energy Los Angeles, CA Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium Workshop held in Los Angeles April 19-20, 2012. Presentations and Materials Workshop Agenda City of Los Angeles: Changing Our Glow for Efficiency Ed Ebrahimian, City of Los Angeles Bureau of Street Lighting L.M. Seventynine:

  7. Webcast: Evaluating LED Street Lighting Solutions | Department of Energy

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

    In this July 20, 2010 webcast, Edward Smalley of Seattle City Light provided an update on DOE Municipal Solid-State Street Lighting Consortium activities. The webcast also presented perspectives from members who are involved with implementing LED street lighting evaluations, including Tod Rosinbum of the City of Portland, Oregon, John Walter of National Grid, and Amy Olay of the City of San Jose, California. View presentation slides Introduction (PDF 984 KB) Edward Smalley, DOE Municipal

  8. 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.

  9. Nucleolar exit of RNF8 and BRCA1 in response to DNA damage

    SciTech Connect (OSTI)

    Guerra-Rebollo, Marta; Mateo, Francesca; Franke, Kristin; Huen, Michael S.Y.; Lopitz-Otsoa, Fernando; Rodriguez, Manuel S.; Plans, Vanessa; Thomson, Timothy M.

    2012-11-01

    The induction of DNA double-strand breaks (DSBs) elicits a plethora of responses that redirect many cellular functions to the vital task of repairing the injury, collectively known as the DNA damage response (DDR). We have found that, in the absence of DNA damage, the DSB repair factors RNF8 and BRCA1 are associated with the nucleolus. Shortly after exposure of cells to {gamma}-radiation, RNF8 and BRCA1 translocated from the nucleolus to damage foci, a traffic that was reverted several hours after the damage. RNF8 interacted through its FHA domain with the ribosomal protein RPSA, and knockdown of RPSA caused a depletion of nucleolar RNF8 and BRCA1, suggesting that the interaction of RNF8 with RPSA is critical for the nucleolar localization of these DDR factors. Knockdown of RPSA or RNF8 impaired bulk protein translation, as did {gamma}-irradiation, the latter being partially countered by overexpression of exogenous RNF8. Our results suggest that RNF8 and BRCA1 are anchored to the nucleolus through reversible interactions with RPSA and that, in addition to its known functions in DDR, RNF8 may play a role in protein synthesis, possibly linking the nucleolar exit of this factor to the attenuation of protein synthesis in response to DNA damage. -- Highlights: Black-Right-Pointing-Pointer RNF8 and BRCA1 are associated with the nucleolus of undamaged cells. Black-Right-Pointing-Pointer Upon {gamma}-radiation, RNF8 and BRCA1 are translocated from the nucleolus to damage foci. Black-Right-Pointing-Pointer The ribosomal protein RPSA anchors RNF8 to the nucleolus. Black-Right-Pointing-Pointer RNF8 may play previously unsuspected roles in protein synthesis.

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

    Energy Savers [EERE]

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

  11. President Obama Signs Two Bills to Boost Small Hydropower Projects |

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

    Department of Energy President Obama Signs Two Bills to Boost Small Hydropower Projects President Obama Signs Two Bills to Boost Small Hydropower Projects August 14, 2013 - 12:06pm Addthis President Obama on August 9 signed into law two bills aimed at boosting development of small U.S. hydropower projects. The bills, H.R. 267, the Hydropower Regulatory Efficiency Act, and H.R. 678, the Bureau of Reclamation Small Conduit Hydropower Development and Rural Jobs Act, are expected to help unlock

  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, or the approximate equivalent of a 50 W halogen MR16 lamp. Many factors beyond photometric performance should be considered during specification. For example, performance over time, transformer and dimmer compatibility, and total system performance are all critical to a successful installation. Subsequent CALiPER reports will investigate more complex issues.

  13. Tax Credits, Rebates & Savings | Department of Energy

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

    are designed to reimburse commercial customers for about 50% of the added cost for buying high efficiency equipment. Occupancy sensors, LED exit signs, and T5 and T8...

  14. FirstEnergy (Potomac Edison) - Commercial and Industrial Efficiency...

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

    CFL Fixture: 25 Screw-In CFL Fixture: 1 LED Exit Sign: 25 Lighting Controls: 25sensor Standard Lighting T8T5 Fixtures (Replacements): 10 - 65fixture Permanent Delamping...

  15. Assessment of TEES reg sign applications for Wet Industrial Wastes: Energy benefit and economic analysis report

    SciTech Connect (OSTI)

    Elliott, D.C.; Scheer, T.H.

    1992-02-01

    Fundamental work is catalyzed biomass pyrolysis/gasification led to the Thermochemical Environmental Energy System (TEES{reg sign}) concept, a means of converting moist biomass feedstocks to high-value fuel gases such as methane. A low-temperature (350{degrees}C), pressurized (3100 psig) reaction environment and a nickel catalyst are used to reduce volumes of very high-moisture wastes such as food processing byproducts while producing useful quantities of energy. A study was conducted to assess the economic viability of a range of potential applications of the process. Cases examined included feedstocks of cheese whey, grape pomace, spent grain, and an organic chemical waste stream. The analysis indicated that only the organic chemical waste process is economically attractive in the existing energy/economic environment. However, food processing cases will become attractive as alternative disposal practices are curtailed and energy prices rise.

  16. United States and South Africa Sign Agreement on Cooperation...

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

    United States and South Africa Sign Agreement on Cooperation in Nuclear Energy Research and Development September 16, 2009 - 12:00am Addthis Vienna, Austria - U.S. Secretary of ...

  17. Critical Materials and Rare Futures: Ames Laboratory Signs a...

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

    Signs a New Agreement on Rare-Earth Research June 15, 2011 - 7:07pm Addthis The plasma torch in the Retech plasma furnace is one tool used in Materials Preparation Center to...

  18. U.S. Geothermal Signs Interconnection Agreement for Neal Hot...

    Open Energy Info (EERE)

    Project Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Geothermal Signs Interconnection Agreement for Neal Hot Springs Power Project Abstract...

  19. Sign me up to receive news and event updates

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

    Mailing List Sign me up to receive news and event updates Find out what's happening @ the Bradbury Science Museum by joining our mailing list. Your Name Your Email Additional Comments Reset Submit Events Calendar Happening Now Mailing List

  20. Key energy efficiency measures signed into law by President Obama...

    Open Energy Info (EERE)

    Key energy efficiency measures signed into law by President Obama Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(2017) Super contributor 2...

  1. U.S. and Russia Sign Statement of Intent

    Broader source: Energy.gov [DOE]

    Secretary Chu and Sergei Kiriyenko, Director General of Russia’s State Corporation for Atomic Energy (Rosatom), signed a Statement of Intent (SOI) concerning collaboration in innovative technologies for environmental restoration and radioactive waste management.

  2. DOE and Japanese Ministry of Economy, Trade, and Industry Sign...

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

    on carbon capture and storage (CCS) technologies, along with an Implementing ... For the full text of the Fact Sheet click here. The CCS MOC signed on Monday is to ...

  3. 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.

  4. Secretaries Chu and Donovan Sign Agreement to Help Working Families

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

    Weatherize Their Homes | Department of Energy Donovan Sign Agreement to Help Working Families Weatherize Their Homes Secretaries Chu and Donovan Sign Agreement to Help Working Families Weatherize Their Homes May 6, 2009 - 12:00am Addthis WASHINGTON - U.S. Department of Housing and Urban Development (HUD) Secretary Shaun Donovan and U.S. Department of Energy (DOE) Secretary Steven Chu today announced an important step forward in the partnership between HUD and DOE to streamline and better

  5. Secretary Chu Joins with World Leaders to Sign International Partnership

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

    for Energy Efficiency Cooperation | Department of Energy Joins with World Leaders to Sign International Partnership for Energy Efficiency Cooperation Secretary Chu Joins with World Leaders to Sign International Partnership for Energy Efficiency Cooperation May 24, 2009 - 12:00am Addthis The Department of Energy announced today that U.S. Energy Secretary Steven Chu joined with top energy leaders from around the world to launch the International Partnership for Energy Efficiency Cooperation

  6. Secretary of Energy Signs Memorandum of Understanding to Strengthen

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

    U.S.-Portugal Cooperation in Renewable Energy Technologies | Department of Energy Signs Memorandum of Understanding to Strengthen U.S.-Portugal Cooperation in Renewable Energy Technologies Secretary of Energy Signs Memorandum of Understanding to Strengthen U.S.-Portugal Cooperation in Renewable Energy Technologies May 27, 2008 - 11:59am Addthis MOU will further joint efforts to advance wave power as a clean, viable energy source LISBON, PORTUGAL - U.S. Secretary of Energy Samuel W. Bodman

  7. Attorney General's signed concurrence letter approved October 9, 2009 |

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

    Department of Energy Attorney General's signed concurrence letter approved October 9, 2009 Attorney General's signed concurrence letter approved October 9, 2009 Attorney General Consulation on binding Arbitration Guidance PDF icon AG Concurrence for BPA More Documents & Publications Letter from DOJ regarding Boneeville Power Administration's Guidance on the Use of Binding Arbitration for BPA Contracts Oct 2009 final concurrence letter for BPA BPA FINAL Binding Arbitration policy

  8. United States and Latvian Governments Sign Agreement to Allow

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

    Nonproliferation and Threat Reduction Cooperation | Department of Energy Latvian Governments Sign Agreement to Allow Nonproliferation and Threat Reduction Cooperation United States and Latvian Governments Sign Agreement to Allow Nonproliferation and Threat Reduction Cooperation April 25, 2005 - 12:25pm Addthis WASHINGTON, D.C. - As part of the Bush administration's ongoing efforts to secure vulnerable nuclear materials worldwide, the Department of Energy (DOE) and the Latvian Ministry of

  9. Congressional, State and Higher Education Leaders Kickoff and Sign Colorado

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

    Renewable Energy Collaboratory Agreement - News Releases | NREL Congressional, State and Higher Education Leaders Kickoff and Sign Colorado Renewable Energy Collaboratory Agreement February 21, 2007 Colorado is poised to become the renewable energy capitol of the world after the kickoff and signing of the Colorado Renewable Energy Collaboratory Agreement. The Collaboratory is an association of our four institutions, the University of Colorado at Boulder (CU), the Colorado School of Mines

  10. NREL Signs Agreement With China's National Utility - News Releases | NREL

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

    NREL Signs Agreement With China's National Utility Scope of MOU Covers Coordination on Research Projects September 11, 2015 Representatives of the Energy Department's National Renewable Energy Laboratory (NREL) and China's State Grid Energy Research Institute today signed a first-ever memorandum of understanding between the two organizations. The State Grid Energy Research Institute (SGERI), located in Beijing, is a subsidiary of China's national utility, State Grid Corporation of China (SGCC).

  11. Sign Up for GC Updates | Department of Energy

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

    Sign Up for GC Updates Sign Up for GC Updates The Office of the General Counsel maintains listservs and RSS feeds to keep the public up to date about recent actions and legal guidance. Please subscribe to these resources by following the instructions below: GC Hotline Listserv. The DOE General Counsel's Office operates an email hotline for legal questions related to the American Recovery & Reinvestment Act (ARRA), including the State Energy Program (SEP), Energy Efficiency Conservation Block

  12. 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 orientations: polar c-plane, non- polar a-plane, non-polar m-plane, and semipolar planes. The active region in those structures shows dramatically reduced densities of threading dislocations unless the wavelength was extended as far as 510 nm and beyond. With the appearance of such defects, the light output power dropped precipitously supporting the necessity to avoid any and all of such defects to reach the active region. Further aspects of the non-polar growth orientation proved extremely promising for the development of such structures. Chief among them is our success to achieve extremely uniform quantum wells in these various crystal orientations that prove devoid of any alloy fluctuation beyond the theoretical limit of a binominal distribution. This became very Rensselaer Wetzel DE?EE0000627 3 directly apparent in highly advanced atom probe tomography performed in collaboration at Northwestern University. Furthermore, under reduced or absence of piezoelectric polarization, green emitters in those growth geometries exhibit an unsurpassed wavelength stability over very wide excitation and drive current ranges. Such a performance had not been possible in any polar c-plane growth and now places green LEDs in terms of wavelength stability up par with typical 450 nm blue emitters. The project also incorporated enabling opportunities in the development of micro and nano- patterned substrate technologies. Originally developped as a means to enhance generated light extraction we have demonstrated that the method of nano-patterning, in contrast to micro- patterning also results in a substantial reduction of threading dislocation generation. In green LEDs, we thereby see equal contributions of enhanced light extraction and reduced defect generation to a threefold enhancement of the green light output power. These results have opened entirely new approaches for future rapid and low cost epitaxial material development by avoidance of thick defect accommodation layers. All methods developed within this project have meanwhile widely been publicized by the members o

  13. 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.

  14. 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;...

  15. 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...

  16. Secretary Chu Announces $38 Million for 42 University-Led Nuclear...

    Office of Environmental Management (EM)

    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 ...

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

    Broader source: Energy.gov [DOE]

    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. LED...

  18. 2009 Voluntary Protection Programs Participants' Association (VPPPA) Presentaton: Employee Led Safety Committees

    Broader source: Energy.gov [DOE]

    2009 Voluntary Protection Programs Participants' Association (VPPPA) Presentaton: Employee Led Safety Committees

  19. Sign problem in Z-coefficient for particle emission angular distributi...

    Office of Scientific and Technical Information (OSTI)

    Sign problem in Z-coefficient for particle emission angular distributions Citation Details In-Document Search Title: Sign problem in Z-coefficient for particle emission angular...

  20. Jefferson Lab Signs Contract Wth SensL For Silicon Photomultiplier...

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

    articlesjefferson-lab-signs-contract-wth-sensl-silicon-photomultiplier-technology-photonics-o... Jefferson Lab Signs Contract Wth SensL For Silicon Photomultiplier Technology...

  1. 30 TAC, part 1, chapter 39, rule 39.604 Sign Posting | Open Energy...

    Open Energy Info (EERE)

    Abstract These rules outline the sign posting requirements for public notice of air quality permit applications in Texas. Published NA Year Signed or Took Effect 1999...

  2. DOE, DOI and Army Corps of Engineers Sign Memorandum of Understanding...

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

    DOE, DOI and Army Corps of Engineers Sign Memorandum of Understanding on Hydropower DOE, DOI and Army Corps of Engineers Sign Memorandum of Understanding on Hydropower March 24, ...

  3. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting

    Office of Scientific and Technical Information (OSTI)

    Products Part 2: LED Manufacturing and Performance (Technical Report) | SciTech Connect Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Part 2: LED Manufacturing and Performance Citation Details In-Document Search Title: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Part 2: LED Manufacturing and Performance Part 2 of the project (this report) uses the conclusions from Part 1 as a point of departure to focus on two

  4. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting

    Office of Scientific and Technical Information (OSTI)

    Products, Part 3: LED Environmental Testing (Technical Report) | SciTech Connect Technical Report: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products, Part 3: LED Environmental Testing Citation Details In-Document Search Title: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products, Part 3: LED Environmental Testing This report covers the third part of a larger U.S. Department of Energy (DOE) project to assess the life-cycle

  5. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting

    Office of Scientific and Technical Information (OSTI)

    Products, Part 3: LED Environmental Testing (Technical Report) | SciTech Connect Technical Report: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products, Part 3: LED Environmental Testing Citation Details In-Document Search Title: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products, Part 3: LED Environmental Testing Ă— You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's

  6. Report 20.3: Stress Testing of LED PAR38 Lamps | Department of Energy

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

    0.3: Stress Testing of LED PAR38 Lamps Report 20.3: Stress Testing of LED PAR38 Lamps PDF icon Report 20.3: Stress Testing of LED PAR38 Lamps More Documents & Publications Report 20.4: Lumen and Chromaticity Maintenance of LED PAR38 Lamps Retail Lamps Study 3.2: Lumen and Chromaticity Maintenance of LED A Lamps Operated in Steady-State Conditions February 2015 Postings

  7. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting

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

    Products Part 2: LED Manufacturing and Performance (Technical Report) | SciTech Connect Technical Report: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Part 2: LED Manufacturing and Performance Citation Details In-Document Search Title: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Part 2: LED Manufacturing and Performance Part 2 of the project (this report) uses the conclusions from Part 1 as a point of departure to

  8. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting

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

    Products, Part 3: LED Environmental Testing (Technical Report) | SciTech Connect Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products, Part 3: LED Environmental Testing Citation Details In-Document Search Title: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products, Part 3: LED Environmental Testing This report covers the third part of a larger U.S. Department of Energy (DOE) project to assess the life-cycle environmental and

  9. DOE Signs Decision to Move Moab Tailings | Department of Energy

    Energy Savers [EERE]

    Decision to Move Moab Tailings DOE Signs Decision to Move Moab Tailings September 14, 2005 - 10:23am Addthis WASHINGTON, DC - U.S. Secretary of Energy Samuel W. Bodman today announced that a Record of Decision (ROD) clearing the way for the removal of 11.9 million tons of radioactive Uranium Mill Tailings from the banks the Colorado River in Utah has been signed. Under the Moab Uranium Mill Tailings Remedial Action Project Site Record of Decision, the tailings will be moved, predominately by

  10. US, Russian Federation Sign Joint Statement on Reactor Conversion |

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

    Department of Energy US, Russian Federation Sign Joint Statement on Reactor Conversion US, Russian Federation Sign Joint Statement on Reactor Conversion June 26, 2012 - 12:00pm Addthis News Media Contact (202) 586-4940 This release is cross-posted from NNSA.energy.gov. MOSCOW - The U.S. and Russian Federation jointly announced today that the first stage of work defined in the Implementing Agreement between the Russian State Corporation for Atomic Energy (Rosatom) and the Department of Energy

  11. DOE signs Record of Decision selecting Hot Isostatic Pressing Technology

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

    for Treatment of High Level Waste Calcine NEWS MEDIA CONTACT: Brad Bugger (208) 526-0833 Danielle Miller (208) 526-5709 FOR IMMEDIATE RELEASE: December 28, 2009 DOE signs Record of Decision selecting Hot Isostatic Pressing Technology for Treatment of High Level Waste The U.S. Department of Energy (DOE) has signed the Record of Decision (ROD) for the treatment of high level waste calcine at the Department�s Idaho Site, meeting a legal commitment to the State of Idaho for a decision no

  12. DOE signs Record of Decision selecting Hot Isostatic Pressing Technology

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

    for Treatment of High Level Waste Calcine DOE signs Record of Decision selecting Hot Isostatic Pressing Technology for Treatment of High Level Waste Calcine The U.S. Department of Energy (DOE) has signed the Record of Decision (ROD) for the treatment of high level waste calcine at the Department's Idaho Site, meeting a legal commitment to the State of Idaho for a decision no later than the end of 2009. Hot Isostatic Pressing Unit DOE today announced its decision to treat high-level waste

  13. DOE Signs Cooperative Agreement for Carbon Capture Project | Department of

    Office of Environmental Management (EM)

    Energy Carbon Capture Project DOE Signs Cooperative Agreement for Carbon Capture Project June 18, 2010 - 1:00pm Addthis Washington, DC - The U.S. Department of Energy has signed a cooperative agreement with NRG Energy Inc. (NRG) for the Parish Post-Combustion CO2 Capture and Sequestration Project to design, construct, and operate a system that will capture and store approximately 400,000 tons of carbon dioxide (CO2) per year. The project, which will be managed by the Office of Fossil

  14. DOE Signs Cooperative Agreement for New Hydrogen Power Plant | Department

    Office of Environmental Management (EM)

    of Energy New Hydrogen Power Plant DOE Signs Cooperative Agreement for New Hydrogen Power Plant November 6, 2009 - 12:00pm Addthis Washington, D.C. -- The U.S. Department of Energy (DOE) has signed a cooperative agreement with Hydrogen Energy California LLC (HECA) to build and demonstrate a hydrogen-powered electric generating facility, complete with carbon capture and storage, in Kern County, Calif. The new plant is a step toward commercialization of a clean technology that enables use of

  15. Pantex signing ceremony kicks off wind farm project | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration signing ceremony kicks off wind farm project | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo

  16. President Ford Signs the Energy Reorganization Act of 1974 | National

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration Ford Signs the Energy Reorganization Act of 1974 | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press

  17. SRNS signs on as industry partner for Nuclear Engineering Technology

    National Nuclear Security Administration (NNSA)

    Education | National Nuclear Security Administration SRNS signs on as industry partner for Nuclear Engineering Technology Education | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios

  18. Uranium Processing Facility team signs partnering agreement | National

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration team signs partnering agreement | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery

  19. U.S. and Iceland Sign Bilateral Agreement to Develop Clean Geothermal

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

    Energy | Department of Energy U.S. and Iceland Sign Bilateral Agreement to Develop Clean Geothermal Energy U.S. and Iceland Sign Bilateral Agreement to Develop Clean Geothermal Energy October 6, 2010 - 10:33am Addthis Photo of two people signing an agreement. Today the United States and Iceland signed a bilateral agreement aimed at increasing the world's understanding of advanced geothermal technologies and accelerating their deployment. The agreement was signed by U.S. Ambassador to

  20. 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...

  1. DOE Publishes CALiPER Snapshot Report on LED A Lamps

    Office of Energy Efficiency and Renewable Energy (EERE)

    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

  2. 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...

  3. 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...

  4. DOE Publishes CALiPER Snapshot Report on LED Outdoor Area Lighting

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s CALiPER program has released a Snapshot Report on LED outdoor area lighting. Based on LED Lighting Facts® data through the second quarter of 2014, the report focuses...

  5. DOE Publishes CALiPER Snapshot Report on Indoor LED Luminaires

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's CALiPER program has released a Snapshot Report on indoor LED luminaires, which utilizes the LED Lighting Facts® program's extensive product database to help industry...

  6. 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,...

  7. Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps...

    Energy Savers [EERE]

    Information Resources Videos Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer Lighting Text-Alternative Version: CALiPER Series 21 on LED Linear ...

  8. DOE Publishes CALiPER Report on Chromaticity Shift Modes of LED...

    Office of Environmental Management (EM)

    CALiPER Report on 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. ...

  9. 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. ...

  10. Improved InGaN LED System Efficacy and Cost via Droop Reduction...

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

    Improved InGaN LED System Efficacy and Cost via Droop Reduction Improved InGaN LED System Efficacy and Cost via Droop Reduction Lead Performer: Lumileds, LLC - San Jose, CA DOE ...

  11. 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.

  12. DOE Publishes CALiPER Snapshot Report on LED MR16 Lamps | Department...

    Energy Savers [EERE]

    Snapshot Report on LED MR16 Lamps DOE Publishes CALiPER Snapshot Report on LED MR16 Lamps March 5, 2014 - 4:23pm Addthis The U.S. Department of Energy's CALiPER program has ...

  13. Hydrogen Storage Lab PI Workshop: HyMARC and NREL-Led Characterization...

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

    Lab PI Workshop: HyMARC and NREL-Led Characterization Effort Hydrogen Storage Lab PI Workshop: HyMARC and NREL-Led Characterization Effort The National Renewable Energy Laboratory ...

  14. 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 ...

  15. Secretary Chu Announces $38 Million for 42 University-Led Nuclear...

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

    42 University-Led Nuclear Research and Development Projects Washington, D.C. - U.S. Secretary of Energy Steven Chu today announced the selection of 42 university-led research and ...

  16. Unique PPPL-led workshop assesses research crucial to the success...

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

    Unique PPPL-led workshop assesses research crucial to the success of ITER By John ... The PPPL-led workshop brought together some 35 theorists and experimentalists from the ...

  17. Webinar: The L Prize-Winning LED A19 Replacement-What Commercial...

    Energy Savers [EERE]

    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 ...

  18. DOE Publishes GATEWAY Report on High-Luminous-Flux LED Lighting...

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

    High-Luminous-Flux LED Lighting in a High-Temperature Environment DOE Publishes GATEWAY Report on High-Luminous-Flux LED Lighting in a High-Temperature Environment December 17, ...

  19. How City-Led Efficiency Efforts Can Support State Climate and...

    Energy Savers [EERE]

    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 ...

  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. 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, ...

  2. Scalable Light Module for Low-Cost, High Efficiency LED Luminaires...

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

    Scalable Light Module for Low-Cost, High Efficiency LED Luminaires Scalable Light Module for Low-Cost, High Efficiency LED Luminaires Lead Performer: Cree, Inc. - Durham, NC DOE ...

  3. Sandia-Developed LED Pulser Delivers Laser-Like Performance at...

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

    LED Pulser Delivers Laser-Like Performance at Fraction of the Cost - Sandia Energy Energy ... Twitter Google + Vimeo GovDelivery SlideShare Sandia-Developed LED Pulser Delivers ...

  4. DOE ARM SP2 Deployment at Boston College_Aerodyne led Coated...

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

    SP2 Deployment at Boston College-Aerodyne- Led Coated Black Carbon Study (BC4) Final ... DOESC-ARM-15-068 SP2 Deployment at Boston College- Aerodyne-Led Coated Black Carbon Study ...

  5. PPPL-led researchers seek to demonstrate a novel design for a...

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

    PPPL-led researchers seek to demonstrate a novel design for a key diagnostic tool for ITER ... Researchers at DIII-D will be led by UCLA in testing the monostatic prototype on the ...

  6. Los Alamos-led consortium works to enhance fuel cell technology

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

    Los Alamos-led consortium works to enhance fuel cell technology Los Alamos-led consortium works to enhance fuel cell technology Los Alamos National Laboratory is leading a ...

  7. 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...

  8. Report 20.4: Lumen and Chromaticity Maintenance of LED PAR38 Lamps |

    Energy Savers [EERE]

    Department of Energy 4: Lumen and Chromaticity Maintenance of LED PAR38 Lamps Report 20.4: Lumen and Chromaticity Maintenance of LED PAR38 Lamps PDF icon Report 20.4: Lumen and Chromaticity Maintenance

  9. Determining when a set of compute nodes participating in a barrier operation on a parallel computer are ready to exit the barrier operation

    DOE Patents [OSTI]

    Blocksome, Michael A. (Rochester, MN)

    2011-12-20

    Methods, apparatus, and products are disclosed for determining when a set of compute nodes participating in a barrier operation on a parallel computer are ready to exit the barrier operation that includes, for each compute node in the set: initializing a barrier counter with no counter underflow interrupt; configuring, upon entering the barrier operation, the barrier counter with a value in dependence upon a number of compute nodes in the set; broadcasting, by a DMA engine on the compute node to each of the other compute nodes upon entering the barrier operation, a barrier control packet; receiving, by the DMA engine from each of the other compute nodes, a barrier control packet; modifying, by the DMA engine, the value for the barrier counter in dependence upon each of the received barrier control packets; exiting the barrier operation if the value for the barrier counter matches the exit value.

  10. 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,...

  11. 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,...

  12. 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,...

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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

  1. The City of Los Angeles LED Streetlight Program | Department of Energy

    Energy Savers [EERE]

    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.

  2. HIsmelt{reg_sign} technology: the future of ironmaking

    SciTech Connect (OSTI)

    Leczo, T.

    2009-03-15

    The unique liquid ironmaking process of HIsmelt{reg_sign} technology produces LD-quality hot metal or pig iron using lower-quality iron ore and non-coking coal, and a variety of iron and carbon-bearing mill wastes, without blending or agglomeration. A HIsmelt facility can replace an obsolete blast furnace in a brownfield application or can be the iron-producing component of a greenfield state-of-the-art steelmaking plant. Two companies in China have signed license agreements to build HIsmelt facilities, but are waiting until the plant in Kwinana, Australia operates for 3 months without any shutdowns or delays before they start construction on their plants.

  3. Sandia, Purdue University Sign MOU to Establish Strategic Alliance

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

    Purdue University Sign MOU to Establish Strategic Alliance - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense

  4. Sign Up for Free Health Screenings at JLab | Jefferson Lab

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

    Last Chance to Sign Up for Free Sentara Optima Health Screenings at JLab Optima Health is offering free and confidential health screenings at Jefferson Lab on March 23. The 10-minute screenings will take place in CEBAF Center, room F113. At this screening, you will learn more about blood pressure, cholesterol, diabetes risk, Body Mass Index, tobacco cessation, and the benefits of regular physical activity. An appointment is required for this screening. The deadline for making an appointment for

  5. Sandia's Supercritical Carbon-Dioxide/Brayton-Cycle Laboratory Signs

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

    Important MOU with Industry Partners Supercritical Carbon-Dioxide/Brayton-Cycle Laboratory Signs Important MOU with Industry Partners - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power

  6. New Jersey Transit FutureGrid MOU Signing

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

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

  7. NREL, Xcel Energy Sign Photovoltaic Development Agreement - News Releases |

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

    NREL NREL, Xcel Energy Sign Photovoltaic Development Agreement September 29, 2005 Denver, Colo. - The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) and Xcel Energy (NYSE: XEL) announced a first-of-a-kind agreement today to develop software to evaluate siting options for off-grid and grid-connected, commercial rooftop solar electricity systems in Colorado. The partnership between the two organizations was developed through Xcel Energy's Utility Innovations (UI)

  8. Bush and Putin Sign Arms Reduction Accord | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration Bush and Putin Sign Arms Reduction Accord | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs

  9. Limited Test Ban Treaty Signed | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Signed | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home /

  10. Nuclear Waste Policy Act Signed | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Waste Policy Act Signed | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at

  11. Truman Signs Atomic Energy Act | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Truman Signs Atomic Energy Act | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs

  12. Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in

    Energy Savers [EERE]

    Steady-State Conditions | Department of Energy 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 icon Report 20.5: Chromaticity Shift Modes of LED PAR38 Lamps Operated in Steady-State Conditions More Documents & Publications Report 20.4: Lumen and Chromaticity Maintenance of LED PAR38 Lamps Retail Lamps Study 3.2: Lumen and Chromaticity Maintenance of LED A

  13. Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product

    DOE Patents [OSTI]

    Dykes, Charles D. (303 Shore Rd., Milton, VT); Daniel, Sabah S. (303 Shore Rd., Pittsburgh, PA); Wood, J. F. Barry (303 Shore Rd., Burlington, VT 05401)

    1990-02-20

    In continuously casting molten metal into cast product by a twin-belt machine, it is desirable to achieve dramatic increases in speed (linear feet per minute) at which cast product exits the machine, particularly in installations where steel cast product is intended to feed a downstream regular rolling mill (as distinct from a planetary mill) operating in tandem with the twin-belt caster. Such high-speed casting produces product with a relatively thin shell and molten interior, and the shell tends to bulge outwardly due to metallostatic head pressure of the molten center. A number of cooperative features enable high-speed, twin-belt casting: (1) Each casting belt is slidably supported adjacent to the caster exit pulley for bulge control and enhanced cooling of cast product. (2) Lateral skew steering of each belt provides an effective increase in moving mold length plus a continuity of heat transfer not obtained with prior art belt steering apparatus. (3) The exiting slab is contained and supported downstream from the casting machine to prevent bulging of the shell of the cast product, and (4) spray cooling is incorporated in the exit containment apparatus for secondary cooling of cast product.

  14. Second order multidimensional sign-preserving remapping for ALE methods

    SciTech Connect (OSTI)

    Hill, Ryan N; Szmelter, J.

    2010-12-15

    A second-order conservative sign-preserving remapping scheme for Arbitrary Lagrangian-Eulerian (ALE) methods is developed utilising concepts of the Multidimensional Positive Definite Advection Transport Algorithm (MPDATA). The algorithm is inherently multidimensional, and so does not introduce splitting errors. The remapping is implemented in a two-dimensional, finite element ALE solver employing staggered quadrilateral meshes. The MPDATA remapping uses a finite volume discretization developed for volume coordinates. It is applied for the remapping of density and internal energy arranged as cell centered, and velocity as nodal, dependent variables. In the paper, the advection of scalar fields is examined first for test cases with prescribed mesh movement. A direct comparison of MPDATA with the performance of the van Leer MUSCL scheme indicates advantages of a multidimensional approach. Furthermore, distinctly different performance between basic MPDATA and the infinite gauge option is illustrated using benchmarks involving transport of a sign changing velocity field. Further development extends the application of MPDATA remapping to the full ALE solver with a staggered mesh arrangement for density, internal energy and momentum using volume coordinates. At present, two options of the algorithm - basic and infinite gauge - are implemented. To ensure a meaningful assessment, an identical Lagrangian solver and computational mesh update routines are used with either MPDATA or van Leer MUSCL remapping. The evaluation places particular focus on the abilities of both schemes to accurately model multidimensional problems. Theoretical considerations are supported with numerical examples. In addition to the prescribed mesh movement cases for advection of scalars, the demonstrations include two-dimensional Eulerian and ALE flow simulations on quadrilateral meshes with both fixed and variable timestep control. The key comparisons include the standard test cases of Sod and Noh for single material problems. The results demonstrate that the MPDATA gauge option is suitable for providing accurate ALE remapping and preserves the multidimensionality and sign of both scalar and vector fields.

  15. The HART{reg_sign} Protocol -- A solution enabling technology

    SciTech Connect (OSTI)

    Helson, R.B.

    1996-09-01

    HART{reg_sign} Field Communications Protocol is widely accepted in the industry as the standard for digitally enhanced 4--20mA communication with smart field instruments. A wide range of products from an increasing number of suppliers are available today, and many more are in development. The enhanced two-way communication capability of instruments using the HART protocol can significantly improve plant information management, provide solutions to today`s business challenges, and yield substantial cost savings. Initial installation/commissioning savings of $400 to $500 per instrument and annual maintenance/operations savings of $100 to $200 per instrument are commonly reported.

  16. Guide to Complete SSO (Single Sign-On) Registration

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

    Complete EIA SSO (Single Sign-On) Registration 1. Open your Internet Browser, enter this address, and press Enter https://signon.eia.doe.gov/ssoserver/login 1 L6533:\prj\EIA-7A\ 1/13/2006 visual_guide_eia7a_gif.doc 2. In the window that opens, bypass the Userid and Password requests, and just click: Register for a Userid 3. Type in the requested information. When you type in Userid, please record the Userid on paper and keep it in an accessible place. You will mainly use this Userid to access

  17. Assessment of TEES{reg_sign} applications for Wet Industrial Wastes: Energy benefit and economic analysis report

    SciTech Connect (OSTI)

    Elliott, D.C.; Scheer, T.H.

    1992-02-01

    Fundamental work is catalyzed biomass pyrolysis/gasification led to the Thermochemical Environmental Energy System (TEES{reg_sign}) concept, a means of converting moist biomass feedstocks to high-value fuel gases such as methane. A low-temperature (350{degrees}C), pressurized (3100 psig) reaction environment and a nickel catalyst are used to reduce volumes of very high-moisture wastes such as food processing byproducts while producing useful quantities of energy. A study was conducted to assess the economic viability of a range of potential applications of the process. Cases examined included feedstocks of cheese whey, grape pomace, spent grain, and an organic chemical waste stream. The analysis indicated that only the organic chemical waste process is economically attractive in the existing energy/economic environment. However, food processing cases will become attractive as alternative disposal practices are curtailed and energy prices rise.

  18. U.S. and Russia Sign Bratislava Accord | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Our Jobs Our Jobs Working at NNSA Blog Home About Us Our History NNSA Timeline U.S. and Russia Sign Bratislava Accord U.S. and Russia Sign Bratislava Accord February 01,...

  19. SRS FTF Section 3116 Determination signed by Secretary Chu | Department of

    Office of Environmental Management (EM)

    Energy Determination signed by Secretary Chu SRS FTF Section 3116 Determination signed by Secretary Chu PDF icon SRS FTF Section 3116 Determination signed by Secretary Chu More Documents & Publications SRS FTF Section 3116 Basis for Determination F-Tank Farm Performance Assessment, Rev 1 Section 3116 Determination for Idaho Nuclear Technology and Engineering Center Tank Farm Facility, signed by Secretary Samuel W. Bodman

  20. December 3, 2003: Bush signs Nanotechnology R&D Act | Department of Energy

    Energy Savers [EERE]

    3, 2003: Bush signs Nanotechnology R&D Act December 3, 2003: Bush signs Nanotechnology R&D Act December 3, 2003: Bush signs Nanotechnology R&D Act December 3, 2003 Secretary Abraham attends the signing of the 21st Century Nanotechnology Research and Development Act by President Bush. The act authorizes funding for nanotechnology research and development over four years and puts into law programs and activities supported by President Bush's National Nanotechnology Initiative. The act

  1. U.S. and Canada Sign Statement of Intent on Nuclear Cleanup

    Broader source: Energy.gov [DOE]

    DOE and the Atomic Energy of Canada Limited (AECL) signed a Statement of Intent (SOI) at the Waste Management Conference.

  2. 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.

  3. 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.

  4. 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

  5. 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.

  6. Department of Energy Announces $17 Million to Bolster University-Led

    Energy Savers [EERE]

    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

  7. Solar LED Light Pilot Project Illuminates the Way in Alabama | Department

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

    of Energy LED Light Pilot Project Illuminates the Way in Alabama 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 leaders, cut the ribbon for the state's solar

  8. DOE Science Showcase - Light-emitting Diode (LED) Lighting Research | OSTI,

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

    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

  9. Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer

    Energy Savers [EERE]

    Lighting | Department of Energy Information Resources » Videos » Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer Lighting Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer Lighting Following is a text version of a video about CALiPER Application Report Series 21 on LED Linear Lamps and Troffer Lighting. Tracy Beeson, Lighting Engineer, Pacific Northwest National Laboratory: Fluorescent troffers are widely used in office spaces, meeting

  10. Secretary Chu Announces $38 Million for 42 University-Led Nuclear Research

    Energy Savers [EERE]

    and Development Projects | Department of Energy $38 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 - 12:05pm 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

  11. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting

    Energy Savers [EERE]

    Products | Department of Energy Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products This March 28, 2013 webcast reviewed DOE's recently completed three-part study of the life-cycle energy and environmental impacts of LED lighting products relative to incandescent and CFL alternatives. The reports for Parts 1 and 2 were published in February 2012 and June 2012, respectively,

  12. How City-Led Efficiency Efforts Can Support State Climate and Energy

    Energy Savers [EERE]

    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

  13. Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville

    Energy Savers [EERE]

    (NC), and Boston (MA) | Department of Energy Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) 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 Algona (IA) Municipal Utilities, Maggie Ullman of the City

  14. LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC

    Office of Environmental Management (EM)

    Engineering Service Center | Department of Energy LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center Document details new lighting technology that reduces energy consumption and reduces maintenance, while providing effective illumination. PDF icon led_parking_lights_navfac.pdf More Documents & Publications Effective White Light Options for

  15. 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.

  16. 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...

  17. 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:

  18. 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.

  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. 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.