National Library of Energy BETA

Sample records for lighting average power

  1. High average power pockels cell

    DOE Patents [OSTI]

    Daly, Thomas P. (Pleasanton, CA)

    1991-01-01

    A high average power pockels cell is disclosed which reduces the effect of thermally induced strains in high average power laser technology. The pockels cell includes an elongated, substantially rectangular crystalline structure formed from a KDP-type material to eliminate shear strains. The X- and Y-axes are oriented substantially perpendicular to the edges of the crystal cross-section and to the C-axis direction of propagation to eliminate shear strains.

  2. High-Average Power Facilities

    SciTech Connect (OSTI)

    Dowell, David H.; Power, John G.; /Argonne

    2012-09-05

    There has been significant progress in the development of high-power facilities in recent years yet major challenges remain. The task of WG4 was to identify which facilities were capable of addressing the outstanding R&D issues presently preventing high-power operation. To this end, information from each of the facilities represented at the workshop was tabulated and the results are presented herein. A brief description of the major challenges is given, but the detailed elaboration can be found in the other three working group summaries.

  3. Fact #744: September 10, 2012 Average New Light Vehicle Price Grows Faster

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

    than Average Used Light Vehicle Price | Department of Energy 4: September 10, 2012 Average New Light Vehicle Price Grows Faster than Average Used Light Vehicle Price Fact #744: September 10, 2012 Average New Light Vehicle Price Grows Faster than Average Used Light Vehicle Price In 2011 the average used light vehicle price was 36% higher than in 1990, while the average new light vehicle price was 67% higher than it was in 1990. The average price of a used vehicle had been between $6,000 and

  4. High average power scaleable thin-disk laser

    DOE Patents [OSTI]

    Beach, Raymond J. (Livermore, CA); Honea, Eric C. (Sunol, CA); Bibeau, Camille (Dublin, CA); Payne, Stephen A. (Castro Valley, CA); Powell, Howard (Livermore, CA); Krupke, William F. (Pleasanton, CA); Sutton, Steven B. (Manteca, CA)

    2002-01-01

    Using a thin disk laser gain element with an undoped cap layer enables the scaling of lasers to extremely high average output power values. Ordinarily, the power scaling of such thin disk lasers is limited by the deleterious effects of amplified spontaneous emission. By using an undoped cap layer diffusion bonded to the thin disk, the onset of amplified spontaneous emission does not occur as readily as if no cap layer is used, and much larger transverse thin disks can be effectively used as laser gain elements. This invention can be used as a high average power laser for material processing applications as well as for weapon and air defense applications.

  5. Delmarva Power Light Company Delmarva Power | Open Energy Information

    Open Energy Info (EERE)

    Delmarva Power Light Company Delmarva Power Jump to: navigation, search Name: Delmarva Power & Light Company (Delmarva Power) Place: Wilmington, Delaware Zip: 19886 Product:...

  6. Fact #744: September 10, 2012 Average New Light Vehicle Price...

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

    light trucks. Source: Used vehicles - Ward's Automotive, New cars - Bureau of Economic Analysis, National Income and Product Accounts (NIPA) Underlying Detail Tables, Table 7.2.5S

  7. Performance and production requirements for the optical components in a high-average-power laser system

    SciTech Connect (OSTI)

    Chow, R.; Doss, F.W.; Taylor, J.R.; Wong, J.N.

    1999-07-02

    Optical components needed for high-average-power lasers, such as those developed for Atomic Vapor Laser Isotope Separation (AVLIS), require high levels of performance and reliability. Over the past two decades, optical component requirements for this purpose have been optimized and performance and reliability have been demonstrated. Many of the optical components that are exposed to the high power laser light affect the quality of the beam as it is transported through the system. The specifications for these optics are described including a few parameters not previously reported and some component manufacturing and testing experience. Key words: High-average-power laser, coating efficiency, absorption, optical components

  8. Fact #715: February 20, 2012 The Average Age of Light Vehicles Continues to

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

    Rise | Department of Energy 5: February 20, 2012 The Average Age of Light Vehicles Continues to Rise Fact #715: February 20, 2012 The Average Age of Light Vehicles Continues to Rise The average age for cars and light trucks continues to rise as consumers hold onto their vehicles longer. Between 1995 and 2011, the average age for cars increased by 32% from 8.4 years to 11.1 years. For light trucks, the average age increased by 25% during that same period from 8.3 years to 10.4 years. The

  9. Carbon Power & Light, Inc | Open Energy Information

    Open Energy Info (EERE)

    Power & Light, Inc Jump to: navigation, search Name: Carbon Power & Light, Inc Place: Wyoming Phone Number: 307-326-5206 Website: www.carbonpower.com Facebook: https:...

  10. Hemphill Power Light Company | Open Energy Information

    Open Energy Info (EERE)

    Power Light Company Jump to: navigation, search Name: Hemphill Power & Light Company Place: Springfield, New Hampshire Sector: Biomass Product: Owner and operator of a 16MW...

  11. Orcas Power & Light Coop | Open Energy Information

    Open Energy Info (EERE)

    Orcas Power & Light Coop Jump to: navigation, search Name: Orcas Power & Light Coop Place: Washington Phone Number: Eastsound Office: (360) 376-3500; Friday Harbor Office: (360)...

  12. Bozrah Light & Power Company | Open Energy Information

    Open Energy Info (EERE)

    Bozrah Light & Power Company Jump to: navigation, search Name: Bozrah Light & Power Company Place: Connecticut Phone Number: (860) 889-7388 Website: www.grotonutilities.comblp.as...

  13. Willwood Light & Power Company | Open Energy Information

    Open Energy Info (EERE)

    Willwood Light & Power Company Jump to: navigation, search Name: Willwood Light & Power Company Place: Wyoming Phone Number: (307) 754-3831 Facebook: https:www.facebook.com...

  14. Lakeview Light & Power | Open Energy Information

    Open Energy Info (EERE)

    Lakeview Light & Power Jump to: navigation, search Name: Lakeview Light & Power Place: Washington Phone Number: (253) 584-6060 Website: lakeviewlight.com Facebook: https:...

  15. Glencoe Light & Power Comm | Open Energy Information

    Open Energy Info (EERE)

    Glencoe Light & Power Comm Jump to: navigation, search Name: Glencoe Light & Power Comm Place: Minnesota Website: glencoelightandpower.com Outage Hotline: 320-864-5184 References:...

  16. Cornwall Light Power CLP | Open Energy Information

    Open Energy Info (EERE)

    Cornwall Light Power CLP Jump to: navigation, search Name: Cornwall Light & Power (CLP) Place: Didcot, England, United Kingdom Zip: OX11 9DD Sector: Wind energy Product:...

  17. Anthracite Power & Light | Open Energy Information

    Open Energy Info (EERE)

    Anthracite Power & Light Jump to: navigation, search Name: Anthracite Power & Light Place: Pennsylvania Phone Number: 570-622-3000 Website: www.anthracitepower.com Outage Hotline:...

  18. Garland Light & Power Company | Open Energy Information

    Open Energy Info (EERE)

    Light & Power Company Jump to: navigation, search Name: Garland Light & Power Company Place: Wyoming Phone Number: 307-754-2881 Website: garlandpower.orgcontactus.cf Outage...

  19. Inland Power & Light Company | Open Energy Information

    Open Energy Info (EERE)

    Power & Light Company Jump to: navigation, search Name: Inland Power & Light Company Address: 10110 W. Hallett Road Place: Spokane, WA Zip: 99224 Phone Number: (877) 668-8243...

  20. High average power magnetic modulator for copper lasers

    SciTech Connect (OSTI)

    Cook, E.G.; Ball, D.G.; Birx, D.L.; Branum, J.D.; Peluso, S.E.; Langford, M.D.; Speer, R.D.; Sullivan, J.R.; Woods, P.G.

    1991-06-14

    Magnetic compression circuits show the promise of long life for operation at high average powers and high repetition rates. When the Atomic Vapor Laser Isotope Separation (AVLIS) Program at Lawrence Livermore National Laboratory needed new modulators to drive their higher power copper lasers in the Laser Demonstration Facility (LDF), existing technology using thyratron switched capacitor inversion circuits did not meet the goal for long lifetimes at the required power levels. We have demonstrated that magnetic compression circuits can achieve this goal. Improving thyratron lifetime is achieved by increasing the thyratron conduction time, thereby reducing the effect of cathode depletion. This paper describes a three stage magnetic modulator designed to provide a 60 kV pulse to a copper laser at a 4. 5 kHz repetition rate. This modulator operates at 34 kW input power and has exhibited MTBF of {approx}1000 hours when using thyratrons and even longer MTBFs with a series of stack of SCRs for the main switch. Within this paper, the electrical and mechanical designs for the magnetic compression circuits are discussed as are the important performance parameters of lifetime and jitter. Ancillary circuits such as the charge circuit and reset circuit are shown. 8 refs., 5 figs., 1 tab.

  1. Fact #693: September 19, 2011 Average Vehicle Footprint for Cars and Light

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

    Trucks | Department of Energy 3: September 19, 2011 Average Vehicle Footprint for Cars and Light Trucks Fact #693: September 19, 2011 Average Vehicle Footprint for Cars and Light Trucks A vehicle footprint is the area defined by the four points where the tires touch the ground. It is calculated as the product of the wheelbase and the average track width of the vehicle. The upcoming Corporate Average Fuel Economy (CAFE) Standards have fuel economy targets based on the vehicle footprint. The

  2. Lakeview Light and Power- Commercial Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    Lakeview Light and Power offers a commercial lighting rebate program. Rebates apply to the installation of energy efficient lighting retrofits in non-residential buildings. The rebate program is...

  3. Indianapolis Power Light | Open Energy Information

    Open Energy Info (EERE)

    Light Jump to: navigation, search Name: Indianapolis Power & Light Place: Indianapolis, Indiana Sector: Wind energy Product: US utility company. The firm is buying wind energy from...

  4. Indianapolis Power & Light- Business Energy Incentives Program

    Broader source: Energy.gov [DOE]

    The Indiana Power and Light Business (IPL) Energy Incentives Program assists commercial and industrial customers with reducing energy consumption through three common types of equipment: lighting,...

  5. Pacific Light Power | Open Energy Information

    Open Energy Info (EERE)

    Power Jump to: navigation, search Name: Pacific Light & Power Place: Anahola, Hawaii Zip: 96703 Sector: Solar Product: Hawaii-based which develops mainly solar projects....

  6. Waverly Light and Power | Open Energy Information

    Open Energy Info (EERE)

    and Power Jump to: navigation, search Name: Waverly Light and Power Place: Waverly, IA Information About Partnership with NREL Partnership with NREL Yes Partnership Type Other...

  7. Connecticut Light and Power | Open Energy Information

    Open Energy Info (EERE)

    Connecticut Light and Power Address: P.O. Box 270 Place: Hartford, Connecticut Zip: 06141 Region: Northeast - NY NJ CT PA Area Sector: Services Product: Green Power Marketer...

  8. Darlington Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Light & Power Co Jump to: navigation, search Name: Darlington Light & Power Co Place: Indiana References: EIA Form EIA-861 Final Data File for 2010 - File1a1 EIA Form 861 Data...

  9. Hughes Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    Power & Light Co Jump to: navigation, search Name: Hughes Power & Light Co Place: Alaska Phone Number: 907-889-2206 Outage Hotline: 907-889-2206 References: EIA Form EIA-861 Final...

  10. Metlakatla Power & Light | Open Energy Information

    Open Energy Info (EERE)

    Metlakatla Power & Light Jump to: navigation, search Name: Metlakatla Power & Light Place: Alaska Phone Number: (907) 886-4451 or (907) 886-3320 or (907) 886-3321 Outage Hotline:...

  11. Kennebunk Light & Power Dist | Open Energy Information

    Open Energy Info (EERE)

    Kennebunk Light & Power Dist Jump to: navigation, search Name: Kennebunk Light & Power Dist Place: Maine Phone Number: (207) 985-3311 weekdays 7am - 5pm Website: klpd.org...

  12. Kirbyville Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Kirbyville Light & Power Co Jump to: navigation, search Name: Kirbyville Light & Power Co Place: Texas References: EIA Form EIA-861 Final Data File for 2010 - File1a1 EIA Form...

  13. Havana Power & Light Company | Open Energy Information

    Open Energy Info (EERE)

    Havana Power & Light Company Jump to: navigation, search Name: Havana Power & Light Company Place: Florida References: EIA Form EIA-861 Final Data File for 2010 - File1a1 EIA...

  14. Kansas City Power & Light- Solar PV Rebates

    Broader source: Energy.gov [DOE]

    Kansas City Power and Light and its affiliate Kansas City Power and Light Greater Missouri Operations (collectively referred to as KCP&L) offer rebates to their customers for the installation...

  15. Fact #622: May 10, 2010 Average Length of Light Vehicle Ownership |

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

    Department of Energy 2: May 10, 2010 Average Length of Light Vehicle Ownership Fact #622: May 10, 2010 Average Length of Light Vehicle Ownership Vehicle owners are holding onto their vehicles for a longer period, according to data from R.L. Polk and Company. The vehicle retention trends show that owners held onto a new vehicle for 56.3 months in 2008, up from 48.4 months six years earlier. New vehicle owners hold onto vehicles about 15 or 16 months longer than used vehicle owners. Average

  16. Average summer electric power bills expected to be lowest in...

    U.S. Energy Information Administration (EIA) Indexed Site

    of forecasted milder temperatures compared with last summer is expected to more than offset higher electricity prices. The result is lower power bills for most U.S. households...

  17. Traverse City Light & Power Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    City Light & Power Wind Farm Jump to: navigation, search Name Traverse City Light & Power Wind Farm Facility Traverse City Light & Power Sector Wind energy Facility Type Community...

  18. High average power magnetic modulator for metal vapor lasers

    DOE Patents [OSTI]

    Ball, Don G. (Livermore, CA); Birx, Daniel L. (Oakley, CA); Cook, Edward G. (Livermore, CA); Miller, John L. (Livermore, CA)

    1994-01-01

    A three-stage magnetic modulator utilizing magnetic pulse compression designed to provide a 60 kV pulse to a copper vapor laser at a 4.5 kHz repetition rate is disclosed. This modulator operates at 34 kW input power. The circuit includes a step up auto transformer and utilizes a rod and plate stack construction technique to achieve a high packing factor.

  19. Heber Light & Power Company | Open Energy Information

    Open Energy Info (EERE)

    Company Jump to: navigation, search Name: Heber Light & Power Company Place: Utah Phone Number: 435.654.1581 Website: heberpower.com Facebook: https:www.facebook.compages...

  20. Renewable Power and Light | Open Energy Information

    Open Energy Info (EERE)

    Place: London, Greater London, United Kingdom Zip: W1 J5P2 Sector: Biofuels, Renewable Energy Product: Renewable Power and Light intend to become a power producer generating from...

  1. Edge-facet pumped, multi-aperture, thin-disk laser geometry for very high average power output scaling

    DOE Patents [OSTI]

    Zapata, Luis E.

    2004-12-21

    The average power output of a laser is scaled, to first order, by increasing the transverse dimension of the gain medium while increasing the thickness of an index matched light guide proportionately. Strategic facets cut at the edges of the laminated gain medium provide a method by which the pump light introduced through edges of the composite structure is trapped and passes through the gain medium repeatedly. Spontaneous emission escapes the laser volume via these facets. A multi-faceted disk geometry with grooves cut into the thickness of the gain medium is optimized to passively reject spontaneous emission generated within the laser material, which would otherwise be trapped and amplified within the high index composite disk. Such geometry allows the useful size of the laser aperture to be increased, enabling the average laser output power to be scaled.

  2. Egegik Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Light & Power Co Place: Alaska Phone Number: (907) 233-2244 Website: www.swamc.orghtmlsouthwest-a Outage Hotline: (907) 233-2244 References: EIA Form EIA-861 Final Data File...

  3. Garland Power and Light Solar Rebate Program

    Broader source: Energy.gov [DOE]

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

  4. Hudson Light & Power- Photovoltaic Incentive Program

    Broader source: Energy.gov [DOE]

    Hudson LightPower Department, the municipal utility for the Town of Hudson, offers a limited number of solar photovoltaic (PV) rebates for residential, commercial, industrial, and municipal...

  5. Waverly Light & Power- Residential Energy Efficiency Rebates

    Broader source: Energy.gov [DOE]

    Waverly Light and Power (WL&P) offers rebates for the purchase and installation of a variety of energy efficiency measures and the purchase of energy efficient appliances. Rebates are available...

  6. Monmouth Power & Light- Residential Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    Monmouth Power & Light offers a wide range of energy efficiency rebates that encourage residential customers to save energy in their homes. To qualify for these incentives electricity must be...

  7. North Slope Borough Power & Light | Open Energy Information

    Open Energy Info (EERE)

    Borough Power & Light Jump to: navigation, search Name: North Slope Borough Power & Light Place: Alaska Phone Number: (907) 852-0489 Website: www.north-slope.orgdepartment Outage...

  8. TKE-Djibouti Power Light | Open Energy Information

    Open Energy Info (EERE)

    TKE-Djibouti Power Light Jump to: navigation, search Name: TKE-Djibouti Power Light Place: Djibouti, Djibouti Country: Djibouti Sector: Renewable Energy Website: www.djpl.org...

  9. Elmhurst Mutual Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    Elmhurst Mutual Power & Light Co Jump to: navigation, search Name: Elmhurst Mutual Power & Light Co Place: Washington Phone Number: (253) 531-4646 Website: www.elmhurstmutual.org...

  10. Eastern Iowa Light & Power Coop | Open Energy Information

    Open Energy Info (EERE)

    Light & Power Coop Jump to: navigation, search Name: Eastern Iowa Light & Power Coop Place: Iowa Phone Number: (563) 732-2211 Website: easterniowa.com Facebook: https:...

  11. Bremen Electric Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Bremen Electric Light & Power Co Jump to: navigation, search Name: Bremen Electric Light & Power Co Place: Indiana References: EIA Form EIA-861 Final Data File for 2010 -...

  12. Hemavathy Power Light Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    Hemavathy Power Light Pvt Ltd Jump to: navigation, search Name: Hemavathy Power & Light Pvt Ltd. Place: India Sector: Hydro Product: Indian small Hydro project developer....

  13. Estes Park Light and Power Department - Commercial and Industrial...

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

    Virtualization: 250 Office Lighting: 5 - 20 SensorsControls: 7 - 90 Summary Estes Park Power & Light, in conjunction with the Platte River Power Authority provides businesses...

  14. NextLight Renewable Power LLC | Open Energy Information

    Open Energy Info (EERE)

    NextLight Renewable Power LLC Jump to: navigation, search Name: NextLight Renewable Power LLC Place: San Francisco, California Zip: 94111 Sector: Renewable Energy Product:...

  15. Optical power splitter for splitting high power light

    DOE Patents [OSTI]

    English, R.E. Jr.; Christensen, J.J.

    1995-04-18

    An optical power splitter for the distribution of high-power light energy has a plurality of prisms arranged about a central axis to form a central channel. The input faces of the prisms are in a common plane which is substantially perpendicular to the central axis. A beam of light which is substantially coaxial to the central axis is incident on the prisms and at least partially strikes a surface area of each prism input face. The incident beam also partially passes through the central channel. 5 figs.

  16. Workplace Charging Challenge Partner: Florida Power & Light Company |

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

    Department of Energy Florida Power & Light Company Workplace Charging Challenge Partner: Florida Power & Light Company Workplace Charging Challenge Partner: Florida Power & Light Company As an early adopter of plug-in electric vehicles (PEVs), Florida Power & Light Company has been a leader in promoting the use of PEVs for its company, employees and customers. In continuing this commitment, Florida Power & Light is excited to offer workplace charging. PEVs provide many

  17. PP-219 Central Power and Light Company | Department of Energy

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

    19 Central Power and Light Company PP-219 Central Power and Light Company Presidential permit authorizing Central Power and Light Company to construct, operate, and maintain electric transmission facilities at the U.S-Mexican border. PDF icon PP-219 Central Power and Light Company More Documents & Publications PP-234-1 Baja California Power Inc PP-234 Baja California Power Inc PP-16 Alendatory Permit

  18. Florida Power and Light- Business Energy Efficiency Rebates

    Broader source: Energy.gov [DOE]

    Florida Power and Light (FPL) offers incentives for its business customers to upgrade the HVAC system, building envelope, water heating, refrigeration and lighting systems. The individual rebates...

  19. PP-78 Minnesota Power & Light Company | Department of Energy

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

    8 Minnesota Power & Light Company PP-78 Minnesota Power & Light Company Presidential Permit authorizing Minnesota Power & Light Company to construct, operate, and maintain electric transmission facilities at the U.S. - Canada Border. PDF icon PP-78 Minnesota Power & Light Company More Documents & Publications PP-76 The Vermont Electric Transmission Company PP-228 Edison Sault Electric Company PP-45-2 Northern States Power

  20. PP-94 Central Power & Light Company | Department of Energy

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

    - Mexico Border. PDF icon PP-94 Central Power & Light Company More Documents & Publications PP-92 El Paso Electric Company (EPE) PP-82 Vermont Electric Power Company, Inc. (VELCO)...

  1. Lakeview Light and Power - Energy Smart Grocer Rebate Program...

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

    Light and Power, in association with the Bonneville Power Administration, offers the Energy Smart Program through which grocery stores, convenient stores, and similar vendors...

  2. Pike County Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Pike County Light & Power Co Jump to: navigation, search Name: Pike County Light & Power Co Place: New York Phone Number: 1-877-434-4100 Website: www.oru.comindex.html Twitter:...

  3. McGrath Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    McGrath Light & Power Co Jump to: navigation, search Name: McGrath Light & Power Co Place: Alaska Phone Number: 907-524-3009 Outage Hotline: 907-524-3009 References: EIA Form...

  4. Aniak Light & Power Co Inc | Open Energy Information

    Open Energy Info (EERE)

    Aniak Light & Power Co Inc Jump to: navigation, search Name: Aniak Light & Power Co Inc Place: Alaska Phone Number: (907) 675-4334 Facebook: https:www.facebook.compages...

  5. Van Buren Light & Power Dist | Open Energy Information

    Open Energy Info (EERE)

    Van Buren Light & Power Dist Jump to: navigation, search Name: Van Buren Light & Power Dist Place: Maine Phone Number: (207) 868-3321 Website: www.cmpco.comSuppliersAndPart Outage...

  6. Superior Water, Light and Power Co | Open Energy Information

    Open Energy Info (EERE)

    Superior Water, Light and Power Co Jump to: navigation, search Name: Superior Water, Light and Power Co Place: Wisconsin Phone Number: 715-394-2200 Website: www.swlp.com Outage...

  7. Properties of a new average power Nd-doped phosphate laser glass

    SciTech Connect (OSTI)

    Payne, S.A.; Marshall, C.D.; Bayramian, A.J.; Wilke, G.D.; Hayden, J.S.

    1995-03-09

    The Nd-doped phosphate laser glass described herein can withstand 2.3 times greater thermal loading without fracture, compared to APG-1 (commercially-available average-power glass from Schott Glass Technologies). The enhanced thermal loading capability is established on the basis of the intrinsic thermomechanical properties and by direct thermally-induced fracture experiments using Ar-ion laser heating of the samples. This Nd-doped phosphate glass (referred to as APG-t) is found to be characterized by a 29% lower gain cross section and a 25% longer low-concentration emission lifetime.

  8. Laser properties of an improved average-power Nd-doped phosphate glass

    SciTech Connect (OSTI)

    Payne, S.A.; Marshall, C.D.; Bayramian, A.J.

    1995-03-15

    The Nd-doped phosphate laser glass described herein can withstand 2.3 times greater thermal loading without fracture, compared to APG-1 (commercially-available average-power glass from Schott Glass Technologies). The enhanced thermal loading capability is established on the basis of the intrinsic thermomechanical properties (expansion, conduction, fracture toughness, and Young`s modulus), and by direct thermally-induced fracture experiments using Ar-ion laser heating of the samples. This Nd-doped phosphate glass (referred to as APG-t) is found to be characterized by a 29% lower gain cross section and a 25% longer low-concentration emission lifetime.

  9. High Average Power Laser Gain Medium With Low Optical Distortion Using A Transverse Flowing Liquid Host

    DOE Patents [OSTI]

    Comaskey, Brian J.; Ault, Earl R.; Kuklo, Thomas C.

    2005-07-05

    A high average power, low optical distortion laser gain media is based on a flowing liquid media. A diode laser pumping device with tailored irradiance excites the laser active atom, ion or molecule within the liquid media. A laser active component of the liquid media exhibits energy storage times longer than or comparable to the thermal optical response time of the liquid. A circulation system that provides a closed loop for mixing and circulating the lasing liquid into and out of the optical cavity includes a pump, a diffuser, and a heat exchanger. A liquid flow gain cell includes flow straighteners and flow channel compression.

  10. Method and system for modulation of gain suppression in high average power laser systems

    DOE Patents [OSTI]

    Bayramian, Andrew James (Manteca, CA)

    2012-07-31

    A high average power laser system with modulated gain suppression includes an input aperture associated with a first laser beam extraction path and an output aperture associated with the first laser beam extraction path. The system also includes a pinhole creation laser having an optical output directed along a pinhole creation path and an absorbing material positioned along both the first laser beam extraction path and the pinhole creation path. The system further includes a mechanism operable to translate the absorbing material in a direction crossing the first laser beam extraction laser path and a controller operable to modulate the second laser beam.

  11. Specification of optical components for a high average-power laser environment

    SciTech Connect (OSTI)

    Taylor, J.R.; Chow, R.; Rinmdahl, K.A.; Willis, J.B.; Wong, J.N.

    1997-06-25

    Optical component specifications for the high-average-power lasers and transport system used in the Atomic Vapor Laser Isotope Separation (AVLIS) plant must address demanding system performance requirements. The need for high performance optics has to be balanced against the practical desire to reduce the supply risks of cost and schedule. This is addressed in optical system design, careful planning with the optical industry, demonstration of plant quality parts, qualification of optical suppliers and processes, comprehensive procedures for evaluation and test, and a plan for corrective action.

  12. Florida Power and Light Company | Open Energy Information

    Open Energy Info (EERE)

    and Light Company Jump to: navigation, search Name: Florida Power and Light Company Place: Juno Beach, Florida Zip: 33408 Product: US utility serving 4.4 million customers in...

  13. Interstate Power and Light Co | Open Energy Information

    Open Energy Info (EERE)

    Light Co Jump to: navigation, search Name: Interstate Power and Light Co Address: 200 1st Street Southeast Place: Cedar Rapids, Iowa Zip: 52401 Website: www.alliantenergy.com...

  14. SunPower Corporation Systems formerly PowerLight | Open Energy...

    Open Energy Info (EERE)

    navigation, search Name: SunPower Corporation, Systems (formerly PowerLight) Place: Berkeley, California Zip: 94702 Sector: Efficiency, Services, Solar Product: US-based...

  15. Pike County Light & Power Co (Pennsylvania) | Open Energy Information

    Open Energy Info (EERE)

    Pennsylvania) Jump to: navigation, search Name: Pike County Light & Power Co Place: Pennsylvania Phone Number: 1-877-434-4100 Website: www.oru.comindex.html Twitter: @ORUConnect...

  16. Forest Grove Light & Power- Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Forest Grove Light & Power offers a variety of rebates through Conservation Services Department. Rebates vary based on technology, and are available to residential, commercial, and/or...

  17. Independence Power and Light- New Homes Rebate Program

    Broader source: Energy.gov [DOE]

    Independence Power and Light offers rebates to builders for constructing new, energy efficient homes which meet ENERGY STAR standards. Builders who meet ENERGY STAR standards and install specified...

  18. Carbon Power & Light - Residential and Commercial Energy Efficiency...

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

    EE Maximum Rebate Water Heater: 75 Program Info Sector Name Utility Administrator Carbon Power & Light, Inc. Website http:www.carbonpower.comrebates.html State Wyoming...

  19. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage Municipal Light and Power for February 2009. Monthly Electric Utility Sales and Revenue Data Short...

  20. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage Municipal Light and Power for November 2008. Monthly Electric Utility Sales and Revenue Data Short...

  1. Alliant Energy Interstate Power and Light (Gas and Electric)...

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

    Program Info Sector Name Utility Administrator Alliant Energy-Interstate Power and Light Website http:www.alliantenergy.comSaveEnergyAndMoneyAdditionalWaysSaveFinan......

  2. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - January 2009 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  3. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage Municipal Light and Power for September 2008. Monthly Electric Utility Sales and Revenue Data Short...

  4. BlackLight Power Inc | Open Energy Information

    Open Energy Info (EERE)

    Name: BlackLight Power Inc Place: Cranbury, New Jersey Zip: 8512 Sector: Hydro, Hydrogen Product: Researching a means of producing energy by catalysing the reaction of...

  5. Carbon Power & Light- Residential and Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Carbon Power and Light, in collaboration with Tri-State Generation and Transmission Association, offers financial incentives for members to increase the energy efficiency of homes and facilities....

  6. Kansas City Power & Light - Commercial/Industrial Energy Efficiency...

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

    Rebate 250,000 per customer per year Program Info Sector Name Utility Administrator Kansas City Power & Light Website http:www.kcpl.comsave-energy-and-moneyfor-business...

  7. Independence Power and Light- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Independence Power and Light (IPL) offers rebates to residential customers for purchasing new, energy efficient appliances. Rebates are available on central air conditioning systems, heat pumps,...

  8. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - February 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  9. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - June 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  10. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - March 2009 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  11. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - April 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  12. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - January 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  13. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - August 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  14. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - July 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  15. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - May 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  16. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    October 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage Municipal Light and Power for October 2008. Monthly Electric Utility...

  17. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - March 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  18. Anchorage Municipal Light and Power (Alaska) EIA Revenue and...

    Open Energy Info (EERE)

    Anchorage Municipal Light and Power (Alaska) EIA Revenue and Sales - December 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Anchorage...

  19. Test report light duty utility arm power distribution system (PDS)

    SciTech Connect (OSTI)

    Clark, D.A.

    1996-03-04

    The Light Duty Utility Arm (LDUA) Power Distribution System has completed vendor and post-delivery acceptance testing. The Power Distribution System has been found to be acceptable and is now ready for integration with the overall LDUA system.

  20. Power Monitoring for Connected Lighting Systems

    Energy Savers [EERE]

    * Provides more granular data * Dependent on connectivity * Moving to utility-grade or revenue- grade accuracy Power-Monitoring Implementations 5 A centralized power-monitoring...

  1. Improved volume-averaged model for steady and pulsed-power electronegative discharges

    SciTech Connect (OSTI)

    Kim, Sungjin; Lieberman, M. A.; Lichtenberg, A. J.; Gudmundsson, J. T.

    2006-11-15

    An improved volume-averaged global model is developed for a cylindrical (radius R, length L) electronegative (EN) plasma that is applicable over a wide range of electron densities, electronegativities, and pressures. It is applied to steady and pulsed-power oxygen discharges. The model incorporates effective volume and surface loss factors for positive ions, negative ions, and electrons combining three electronegative discharge regimes: a two-region regime with a parabolic EN core surrounded by an electropositive edge, a one-region parabolic EN plasma, and a one-region flat-topped EN plasma, spanning the plasma parameters and gas pressures of interest for low pressure processing (below a few hundred millitorr). Pressure-dependent effective volume and surface loss factors are also used for the neutral species. A set of reaction rate coefficients, updated from previous model calculations, is developed for oxygen for the species O{sub 2}, O{sub 2}({sup 1}{delta}{sub g}), O, O{sub 2}{sup +}, O{sup +}, and O{sup -}, based on the latest published cross-section sets and measurements. The model solutions yield all of the quantities above together with such important processing quantities such as the neutral/ion flux ratio {gamma}{sub O}/{gamma}{sub i}, with the discharge aspect ratio 2R/L and pulsed-power period and duty ratio (pulse on-time/pulse period) as parameters. The steady discharge results are compared to an experiment, giving good agreement. For steady discharges, increasing 2R/L from 1 to 6 leads to a factor of 0.45 reduction in {gamma}{sub O}/{gamma}{sub i}. For pulsed discharges with a fixed duty ratio, {gamma}{sub O}/{gamma}{sub i} is found to have a minimum with respect to pulse period. A 25% duty ratio pulse reduces {gamma}{sub O}/{gamma}{sub i} by a factor of 0.75 compared to the steady-state case.

  2. Florida Power & Light Co. | Open Energy Information

    Open Energy Info (EERE)

    was awarded 200,000,000 Recovery Act Funding with a total project value of 578,347,232. Utility Rate Schedules Grid-background.png Average Rates Residential: 0.1040kWh...

  3. Method for optical pumping of thin laser media at high average power

    DOE Patents [OSTI]

    Zapata, Luis E. (Livermore, CA); Beach, Raymond J. (Livermore, CA); Honea, Eric C. (Sunol, CA); Payne, Stephen A. (Castro Valley, CA)

    2004-07-13

    A thin, planar laser material is bonded to a light guide of an index-matched material forming a composite disk. Diode array or other pump light is introduced into the composite disk through the edges of the disk. Pump light trapped within the composite disk depletes as it multi-passes the laser medium before reaching an opposing edge of the disk. The resulting compound optical structure efficiently delivers concentrated pump light and to a laser medium of minimum thickness. The external face of the laser medium is used for cooling. A high performance cooler attached to the external face of the laser medium rejects heat. Laser beam extraction is parallel to the heat flux to minimize optical distortions.

  4. Transverse flowing liquid Kerr cell for high average power laser Q-switching and for direct modulation of high power laser beams.

    DOE Patents [OSTI]

    Comaskey, Brian J.

    2004-12-07

    A fluid flow concept is applied in an optical apparatus to define a high gain stand-off, fast electro-optical q-switch which is highly impervious to high average power optical loads.

  5. Kansas City Power & Light- Home Performance Rebate with ENERGY STAR

    Broader source: Energy.gov [DOE]

    Kansas City Power and Light (KCP&L) offers rebates to residential customers towards the cost of an ENERGY STAR Home Energy Assessment and a portion of the installed efficiency improvements....

  6. Kansas City Power & Light- Home Performance with ENERGY STAR

    Broader source: Energy.gov [DOE]

    Kansas City Power & Light (KCP&L) offers rebates to residential customers of KCP&L's Greater Missouri Operations towards the cost of an ENERGY STAR Home Energy Assessment and a portion...

  7. Kansas City Power & Light- Energy Optimizer Programmable Thermostat Program

    Broader source: Energy.gov [DOE]

    Kansas City Power and Light (KCP&L) offers a free programmable thermostat and free installation to qualifying customers to manage energy usage. Only residential and small commercial customers...

  8. Orcas Power & Light- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Orcas Power and Light Cooperative offers incentives for residential customers to pursue energy efficiency upgrades in eligible homes. Rebates are offered for Energy Star rated appliances, water...

  9. Kansas City Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    (Redirected from KCP&L) Jump to: navigation, search Name: Kansas City Power & Light Co Place: Kansas Phone Number: (816) 471-5275 or (888) 471-5275 Website: kcpl.com Facebook:...

  10. Florida Power and Light- Residential Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    Florida Power and Light (FPL) offers rebates to residential customers who implement certain energy efficiency improvements in eligible homes. HVAC rebates are available for the replacement of air...

  11. City Water Light and Power- Solar Rewards Program

    Broader source: Energy.gov [DOE]

    City Water, Light and Power  (CWLP) is offering residential and commercial customers a $500 per kilowatt (kW) rebate for installing solar photovoltaic (PV) systems with a maximum rebate of up to $2...

  12. New River Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Co Jump to: navigation, search Name: New River Light & Power Co Place: North Carolina Phone Number: (828) 264-8621 Website: nrlp.appstate.edu Outage Hotline: (828) 264-8621...

  13. Dayton Power and Light- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Dayton Power and Light offers rebates for heating and cooling to residential customers who purchase and install energy efficient products for the home. Eligible systems and measures include heat...

  14. Union Light, Heat & Power Co | Open Energy Information

    Open Energy Info (EERE)

    Name: Union Light, Heat & Power Co Place: Kentucky References: Energy Information Administration.1 EIA Form 861 Data Utility Id 19446 This article is a stub. You can help OpenEI...

  15. Meeker Coop Light & Power Assn | Open Energy Information

    Open Energy Info (EERE)

    erative-Light-Power-Assoc400233190021573 Outage Hotline: 800.232.6257 Outage Map: pyxis-oms.comOutageMapMeeker References: EIA Form EIA-861 Final Data File for 2010 - File1a1...

  16. Kansas City Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Kansas City Power & Light Co Place: Kansas Phone Number: (816) 471-5275 or (888) 471-5275 Website: kcpl.com Facebook: http:kcpl.com Outage...

  17. Kansas City Power & Light Co (Missouri) | Open Energy Information

    Open Energy Info (EERE)

    Kansas City Power & Light Co Place: Missouri Phone Number: (816) 471-5275 or (888) 471-5275 Website: kcpl.com Facebook: https:www.facebook.comKCPLConnect Outage Hotline:...

  18. Sandia Energy - Fuel-Cell-Powered Mobile Lights Tested, Proven...

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

    and in other applications. (Photo by Dino Vournas) Mobile lighting systems powered by hydrogen (H2) fuel cells are cleaner, quieter, and now have a proven track record in...

  19. Inland Power & Light Company- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Inland Power & Light offers a variety of rebates for the purchase of energy efficient equipment. Customers should see the program web site for rebate applications and full program details.

  20. Chip-Scale Power Conversion for LED Lighting: Integrated Power Chip Converter for Solid-State Lighting

    SciTech Connect (OSTI)

    2010-10-01

    ADEPT Project: Teledyne is developing cost-effective power drivers for energy-efficient LED lights that fit on a compact chip. These power drivers are important because they transmit power throughout the LED device. Traditional LED driver components waste energy and don't last as long as the LED itself. They are also large and bulky, so they must be assembled onto a circuit board separately which increases the overall manufacturing cost of the LED light. Teledyne is shrinking the size and improving the efficiency of its LED driver components by using thin layers of an iron magnetic alloy and new gallium nitride on silicon devices. Smaller, more efficient components will enable the drivers to be integrated on a single chip, reducing costs. The new semiconductors in Teledyne's drivers can also handle higher levels of power and last longer without sacrificing efficiency. Initial applications for Teledyne's LED power drivers include refrigerated grocery display cases and retail lighting.

  1. High average power scaling of optical parametric amplification through cascaded difference-frequency generators

    DOE Patents [OSTI]

    Jovanovic, Igor; Comaskey, Brian J.

    2004-09-14

    A first pump pulse and a signal pulse are injected into a first optical parametric amplifier. This produces a first amplified signal pulse. At least one additional pump pulse and the first amplified signal pulse are injected into at least one additional optical parametric amplifier producing an increased power coherent optical pulse.

  2. The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow...

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

    The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow 2004 Diesel Engine Emissions Reduction (DEER) ...

  3. Noise power spectral density of a fibre scattered-light interferometer with a semiconductor laser source

    SciTech Connect (OSTI)

    Alekseev, A E; Potapov, V T

    2013-10-31

    Spectral characteristics of the noise intensity fluctuations at the output of a scattered-light interferometer, caused by phase fluctuations of semiconductor laser radiation are considered. This kind of noise is one of the main factors limiting sensitivity of interferometric sensors. For the first time, to our knowledge, the expression is obtained for the average noise power spectral density at the interferometer output versus the degree of a light source coherence and length of the scattering segment. Also, the approximate expressions are considered which determine the power spectral density in the low-frequency range (up to 200 kHz) and in the limiting case of extended scattering segments. The expression obtained for the noise power spectral density agrees with experimental normalised power spectra with a high accuracy. (interferometry of radiation)

  4. High energy, high average power solid state green or UV laser

    DOE Patents [OSTI]

    Hackel, Lloyd A.; Norton, Mary; Dane, C. Brent

    2004-03-02

    A system for producing a green or UV output beam for illuminating a large area with relatively high beam fluence. A Nd:glass laser produces a near-infrared output by means of an oscillator that generates a high quality but low power output and then multi-pass through and amplification in a zig-zag slab amplifier and wavefront correction in a phase conjugator at the midway point of the multi-pass amplification. The green or UV output is generated by means of conversion crystals that follow final propagation through the zig-zag slab amplifier.

  5. DOE Announces Webinars on the Distributed Wind Power Market, Lighting

    Office of Environmental Management (EM)

    Retrofits Financial Analysis Tool, and More | Department of Energy Lighting Retrofits Financial Analysis Tool, and More DOE Announces Webinars on the Distributed Wind Power Market, Lighting Retrofits Financial Analysis Tool, and More August 16, 2013 - 12:00pm Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce. Webinars are free; however, advanced

  6. Non-Invasive Beam Detection in a High-Average Power Electron Accelerator

    SciTech Connect (OSTI)

    Williams, J.; Biedron, S.; Harris, J.; Martinez, J.; Milton, S. V.; Van Keuren, J.; Benson, Steve V.; Evtushenko, Pavel; Neil, George R.; Zhang, Shukui

    2013-12-01

    For a free-electron laser (FEL) to work effectively the electron beam quality must meet exceptional standards. In the case of an FEL operating at infrared wavelengths in an amplifier configuration the critical phase space tends to be in the longitudinal direction. Achieving high enough longitudinal phase space density directly from the electron injector system of such an FEL is difficult due to space charge effects, thus one needs to manipulate the longitudinal phase space once the beam energy reaches a sufficiently high value. However, this is fraught with problems. Longitudinal space charge and coherent synchrotron radiation can both disrupt the overall phase space, furthermore, the phase space disruption is exacerbated by the longitudinal phase space manipulation process required to achieve high peak current. To achieve and maintain good FEL performance one needs to investigate the longitudinal emittance and be able to measure it during operation preferably in a non-invasive manner. Using the electro-optical sampling (EOS) method, we plan to measure the bunch longitudinal profile of a high-energy (~120-MeV), high-power (~10kW or more FEL output power) beam.

  7. Networked Lighting Power and Control Platform for Solid State Lighting in Commercial Office Applications

    SciTech Connect (OSTI)

    Covaro, Mark

    2012-08-15

    Redwood Systems' objective is to further accelerate the acceptance of solid state lighting (SSL) with fine grain and easy-to-use control. In addition, increased and improved sensor capability allows the building owner or user to gather data on the environment within the building. All of this at a cost equal to or less than that of code-compliant fluorescent lighting. The grant we requested and received has been used to further enhance the system with power conversion efficiency improvements and additional features. Some of these features, such as building management system (BMS) control, allow additional energy savings in non-lighting building systems.

  8. PP-6 Puget Sound Power & Light Company | Department of Energy

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

    Puget Sound Power & Light Company PP-6 Puget Sound Power & Light Company Presidential permit authorizing Puget Sound Power & Light Company to construct, operate, and maintain electric transmission facilities at the U.S-Canada border. - Signed 4/28/1981 PDF icon PP-6 Puget Sound Power & Light Company More Documents & Publications PP-29-1 Maine Public Service Company PP-12 Maine Public Service Company PP-10 Bonneville Power Administrator

  9. Estes Park Light and Power Department- Commercial and Industrial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Estes Park Power & Light, in conjunction with the Platte River Power Authority provides businesses incentives for new construction projects and existing building retrofits. The Electric...

  10. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Light&Power Co (Alaska) EIA Revenue and Sales - April 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric Light&Power Co for...

  11. Alliant Energy Interstate Power and Light (Gas and Electric)...

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

    Geothermal Heat Pumps: 1,600 - 3,200 Lighting Fixtures: varies, up to 100fixture Light bulbs and lighting: varies, up to 15bulb LED Fixtures: 30 LED Bulbs: 10 FanMotor...

  12. Chapter 4: Advancing Clean Electric Power Technologies | Light...

    Energy Savers [EERE]

    Light Water Reactors Chapter 4: Technology Assessments Past, Present, and Future of the ... peacetime uses came online in 1957. Light water reactors (LWRs) are now a mature ...

  13. Alliant Energy Interstate Power and Light (Electric) - Business...

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

    Water Heaters Lighting Lighting ControlsSensors Chillers Heat Pumps Air conditioners Programmable Thermostats CaulkingWeather-stripping DuctAir sealing Building Insulation...

  14. Dayton Power and Light- Business and Government Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Dayton Power and Light's (DP&L) non-residential electricity customers are eligible for a wide range of energy efficient technology rebates. Rebates are available for lighting, heating and...

  15. Cheyenne Light, Fuel and Power (Electric)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Cheyenne Light, Fuel and Power offers incentives to electric customers who wish to install energy efficient equipment in participating homes. Incentives are available for CFL and LED light bulbs,...

  16. The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow |

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

    Department of Energy The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Volkwagen AG, Wolfsburg, Germany PDF icon 2004_deer_schindler.pdf More Documents & Publications Accelerating Light-Duty Diesel Sales in the U.S. Market Marketing Light-Duty Diesels to U.S. Consumers Clean Diesel: The Progress, The Message, The Opportunity

  17. Florida Power and Light Comments on Smart Grid Request For Information

    Energy Savers [EERE]

    (RFI): Addressing Policy & Logistical Challenges. | Department of Energy Florida Power and Light Comments on Smart Grid Request For Information (RFI): Addressing Policy & Logistical Challenges. Florida Power and Light Comments on Smart Grid Request For Information (RFI): Addressing Policy & Logistical Challenges. Florida Power and Light (FPL) believes the Smart Grid represents an important new technology platform for the electric utility industry and its customers. This platform,

  18. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric Light&Power Co for February 2009. Monthly Electric Utility Sales and Revenue Data Short Name...

  19. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric Light&Power Co for January 2009. Monthly Electric Utility Sales and Revenue Data Short Name...

  20. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - November 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  1. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - March 2009 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  2. Alliant Energy Interstate Power and Light (Gas and Electric)- Farm Equipment Energy Efficiency Incentives

    Broader source: Energy.gov [DOE]

    Interstate Power and Light (Alliant Energy) offers prescriptive rebates for a variety of energy efficient products for agricultural customers. In addition to these incentives, IPL offers a Farm...

  3. Alliant Energy Interstate Power and Light (Gas)- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Interstate Power and Light (Alliant Energy) offers residential energy efficiency rebates to Iowa customers for a variety of home upgrades. Rebates are available for certain heating, insulation,...

  4. Alliant Energy Interstate Power and Light (Electric)- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Interstate Power and Light (Alliant Energy) offers residential energy efficiency rebates for Iowa customers for a variety of technologies. Rebates are available for certain HVACequipment,...

  5. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - June 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  6. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - September 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  7. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - May 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  8. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - February 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  9. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - October 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  10. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - March 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  11. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - January 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  12. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - July 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  13. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - December 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  14. Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales...

    Open Energy Info (EERE)

    Alaska Electric Light&Power Co (Alaska) EIA Revenue and Sales - August 2008 Jump to: navigation, search EIA Monthly Electric Utility Sales and Revenue Data for Alaska Electric...

  15. Evaporation-powered Motor and Light | U.S. DOE Office of Science...

    Office of Science (SC) Website

    Evaporation-powered Motor and Light Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences ...

  16. Case Study - Florida Power & Light - Smart Grid Solutions Strengthen Reliability and Services - July 2012.pdf

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

    Florida Power & Light July 2012 1 Smart devices have been installed on 78 substation transformer banks. Smart Grid Solutions Strengthen Electric Reliability and Customer Services in Florida With 4.6 million customers, nearly 70,000 miles of power lines and 16 power plants, Florida Power and Light Company (FPL) is one of the nation's largest electric utilities. FPL says maintaining reliable service while keeping rates affordable is "Job One." While pursuing its mission, FPL is

  17. Cagayan Electric Power and Light Co Cepalco | Open Energy Information

    Open Energy Info (EERE)

    (Cepalco) Place: Philippines Sector: Solar Product: Provides electricity to Cagayan de Oro City. Has developed a 1MW solar power plant. References: Cagayan Electric Power and...

  18. Alliant Energy Interstate Power and Light - Farm Equipment Energy...

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

    Pumps: 5cow Motors: 30HP Variable Frequency Drives: 30HP Lighting: 3 - 20fixture Ventilation Systems: 10 Livestock Waterers: 40unit Low Pressure Irrigation Systems:...

  19. Alexandria Light and Power- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    ALP also offers a custom rebate for energy saving measures not listed above. The incentive is based on a dollar amount per average kW removed during the months of June, July, August, and September...

  20. Microsoft PowerPoint - ZERH Lighting Efficiency - FINAL w bios

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

    READY HOME: LIGHTING EFFICIENCY Presented by: Brooke Silber, LC, IES, LEED AP - Jan & Brooke Luminae David Brignati, AIA, LEED AP - Newport Ventures High Efficacy Lighting in DOE Zero Energy Ready Home LEDs in High Performance Homes ... - Practical Experience * LEDs are increasingly used in DOE ZERHs * Design can be different... * Building integration can be different... * User experience should be different! BROOKE SILBER C. Brooke Silber, IES, LC, LEEDAP Principal, Jan & Brooke,

  1. Florida Power & Light Company Smart Grid Project | Open Energy...

    Open Energy Info (EERE)

    will have the knowledge and skills to design, plan, construct, operate, and maintain a modern electricity delivery system, including power system infrastructure and information...

  2. Georgia Interfaith Power and Light- Energy Improvement Grants

    Broader source: Energy.gov [DOE]

    Applications are due by either May 15 or November 15 of each year, and materials are available on the program web site. Applicants must first have an energy audit through GIPL's Power Wise program.

  3. Crow Wing Cooperative Power & Light Comp | Open Energy Information

    Open Energy Info (EERE)

    www.cwpower.com Facebook: https:www.facebook.compagesCrow-Wing-Power250728911428?refhl Outage Hotline: 218-829-2827 Outage Map: 209.212.41.13:81 References: EIA Form...

  4. Case Study - Florida Power & Light - Smart Grid Solutions Strengthen...

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

    ... The TPDC is also monitoring the battery banks that provide power to 500 FPL substations. The battery banks are monitored for both high and low voltage levels, and high impedance. ...

  5. ECIS, Boeing, Caltrans, and Others: Fuel-Cell-Powered Mobile Lighting

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

    Applications Boeing, Caltrans, and Others: Fuel-Cell-Powered Mobile Lighting Applications - 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

  6. Cheyenne Light, Fuel and Power (Gas)- Commercial and Industrial Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Cheyenne Light, Fuel and Power (CLFP) offers incentives tocommercial and industrial gas customers who install energy efficient equipment inexisting buildings. Incentives are available for boilers...

  7. Alliant Energy Interstate Power and Light (Gas and Electric)- Low Interest Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    Interstate Power and Light (Alliant Energy), in conjunction with Wells Fargo Bank, offers a low-interest loan for residential, commercial and agricultural customers who purchase and install energy...

  8. Cheyenne Light, Fuel and Power (Electric)- Commercial and Industrial Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Cheyenne Light, Fuel and Power offers incentives to commercial and industrial electric customers who wish to install energy efficient equipment and measures in eligible facilities. Incentives are...

  9. Alliant Energy Interstate Power and Light (Gas and Electric)- New Home Construction Incentives

    Broader source: Energy.gov [DOE]

    Interstate Power and Light's New Home Program gives incentives to builders and contractors who build energy efficient homes. A base rebate is available to those customers that make the minimum...

  10. Alliant Energy Interstate Power and Light (Gas)- Business Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Interstate Power and Light (IPL) offers a wide variety of incentives for commercial customers to save energy in eligible facilities, whether they are upgrading existing facilities or building new...

  11. Alliant Energy Interstate Power and Light (Electric)- Business Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Interstate Power and Light (IPL) offers a wide variety of incentives for commercial customers to save energy in eligible facilities, whether they are upgrading existing facilities or building new...

  12. Cheyenne Light, Fuel and Power (Gas)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Cheyenne Light, Fuel and Power offers incentives to gas customers who construct new energy efficient homes or install energy efficient equipment in existing homes. Incentives are available for:

  13. U.S. Coast Guard and Florida Power and Light Successfully Implement...

    Office of Environmental Management (EM)

    Power and Light Successfully Implement a Multi-Site UESC Project Fact sheet covers a case study that details a success story of a multi-site utility energy service contract...

  14. Low Voltage, Low Power Organic Light Emitting Transistors for AMOLED Displays

    SciTech Connect (OSTI)

    McCarthy, M. A. [University of Florida, Gainesville; Liu, B. [University of Florida, Gainesville; Donoghue, E. P. [University of Florida, Gainesville; Kravchenko, Ivan I [ORNL; Kim, D. Y. [University of Florida, Gainesville; Reynolds, J. R. [University of Florida, Gainesville; So, Franky [University of Florida, Gainesville; Rinzler, A. G. [University of Florida, Gainesville

    2011-01-01

    Low voltage, low power dissipation, high aperture ratio organic light emitting transistors are demonstrated. The high level of performance is enabled by a carbon nanotube source electrode that permits integration of the drive transistor and the organic light emitting diode into an efficient single stacked device. Given the demonstrated performance, this technology could break the technical logjam holding back widespread deployment of active matrix organic light emitting displays at flat panel screen sizes.

  15. Laser Drilling - Drilling with the Power of Light

    SciTech Connect (OSTI)

    Iraj A. Salehi; Brian C. Gahan; Samih Batarseh

    2007-02-28

    Gas Technology Institute (GTI) has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Since 1997, GTI (then as Gas Research Institute- GRI) has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. In this report, GTI continues its investigation with a 5.34 kW ytterbium-doped multi-clad high power fiber laser (HPFL). When compared to its competitors; the HPFL represents a technology that is more cost effective to operate, capable of remote operations, and requires considerably less maintenance and repair. Work performed under this contract included design and implementation of laboratory experiments to investigate the effects of high power laser energy on a variety of rock types. All previous laser/rock interaction tests were performed on samples in the lab at atmospheric pressure. To determine the effect of downhole pressure conditions, a sophisticated tri-axial cell was designed and tested. For the first time, Berea sandstone, limestone and clad core samples were lased under various combinations of confining, axial and pore pressures. Composite core samples consisted of steel cemented to rock in an effort to represent material penetrated in a cased hole. The results of this experiment will assist in the development of a downhole laser perforation or side tracking prototype tool. To determine how this promising laser would perform under high pressure in-situ conditions, GTI performed a number of experiments with results directly comparable to previous data. Experiments were designed to investigate the effect of laser input parameters on representative reservoir rock types of sandstone and limestone. The focus of the experiments was on laser/rock interaction under confining pressure as would be the case for all drilling and completion operations. As such, the results would be applicable to drilling, perforation, and side tracking applications. In the past, several combinations of laser and rock variables were investigated at standard conditions and reported in the literature. More recent experiments determined the technical feasibility of laser perforation on multiple samples of rock, cement and steel. The fiber laser was capable of penetrating these materials under a variety of conditions, to an appropriate depth, and with reasonable energy requirements. It was determined that fiber lasers are capable of cutting rock without causing damage to flow properties. Furthermore, the laser perforation resulted in permeability improvements on the exposed rock surface. This report has been prepared in two parts and each part may be treated as a stand-alone document. Part 1 (High Energy Laser Drilling) includes the general description of the concept and focuses on results from experiments under the ambient lab conditions. Part 2 (High Energy Laser Perforation and Completion Techniques) discusses the design and development of a customized laser pressure cell; experimental design and procedures, and the resulting data on pressure-charged samples exposed to the laser beam. An analysis provides the resulting effect of downhole pressure conditions on the laser/rock interaction process.

  16. Photoionization of optically trapped ultracold atoms with a high-power light-emitting diode

    SciTech Connect (OSTI)

    Goetz, Simone; Hoeltkemeier, Bastian; Amthor, Thomas; Weidemueller, Matthias [Physikalisches Institut, Universitaet Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg (Germany)

    2013-04-15

    Photoionization of laser-cooled atoms using short pulses of a high-power light-emitting diode (LED) is demonstrated. Light pulses as short as 30 ns have been realized with the simple LED driver circuit. We measure the ionization cross section of {sup 85}Rb atoms in the first excited state, and show how this technique can be used for calibrating efficiencies of ion detector assemblies.

  17. High-Powered Dark Energy Camera Can See Billions of Light Years Away |

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

    Department of Energy Powered Dark Energy Camera Can See Billions of Light Years Away High-Powered Dark Energy Camera Can See Billions of Light Years Away August 21, 2014 - 10:19am Addthis Stars above the Cerro Tololo Inter-American Observatory in Chile where the DECam is located. | Photo courtesy of Reidar Hahn at Fermilab. Stars above the Cerro Tololo Inter-American Observatory in Chile where the DECam is located. | Photo courtesy of Reidar Hahn at Fermilab. Allison Lantero Allison Lantero

  18. Florida Power & Light Company Video (Text Version) | Department of Energy

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

    Florida Power & Light Company Video (Text Version) Florida Power & Light Company Video (Text Version) It's easy to get charged up about electric vehicles and what's not to love. They have the latest technology, high-end features, they're cheaper, they're cleaner, they're funner, wait a minute, wait a minute, I mean more fun. That's it they're more fun to drive. Now look, we get that you kinda feel a special bond to that very noisy 100 year old technology in your car. I mean people

  19. Florida Power & Light Company, 700 Universe Blvd. Juno Beach 33408

    Office of Environmental Management (EM)

    Florida Power & Light Company, 700 Universe Blvd. Juno Beach 33408 Telephone: (561)691-2790, Fax: (561)691-7577 Page 1 of 19 November 1, 2010 U.S. Department of Energy Office of Electricity Delivery & Energy Reliability 1000 Independence Ave., S.W. Room 8H033 Washington, DC 20585 Via E-mail: smartgridpolicy@hq.doe.gov Re: Smart Grid Request For Information (RFI): Addressing Policy & Logistical Challenges Florida Power & Light Company ("FPL") appreciates the opportunity

  20. Gamma-ray burst prompt emission light curves and power density spectra in the ICMART model

    SciTech Connect (OSTI)

    Zhang, Bo [School of Astronomy and Space Science, Nanjing University, Nanjing 210093 (China); Zhang, Bing, E-mail: bozhang@physics.unlv.edu, E-mail: zhang@physics.unlv.edu [Department of Physics and Astronomy, University of Nevada Las Vegas, Las Vegas, NV 89154 (United States)

    2014-02-20

    In this paper, we simulate the prompt emission light curves of gamma-ray bursts (GRBs) within the framework of the Internal-Collision-induced MAgnetic Reconnection and Turbulence (ICMART) model. This model applies to GRBs with a moderately high magnetization parameter ? in the emission region. We show that this model can produce highly variable light curves with both fast and slow components. The rapid variability is caused by many locally Doppler-boosted mini-emitters due to turbulent magnetic reconnection in a moderately high ? flow. The runaway growth and subsequent depletion of these mini-emitters as a function of time define a broad slow component for each ICMART event. A GRB light curve is usually composed of multiple ICMART events that are fundamentally driven by the erratic GRB central engine activity. Allowing variations of the model parameters, one is able to reproduce a variety of light curves and the power density spectra as observed.

  1. Plasma wakefields driven by an incoherent combination of laser pulses: A path towards high-average power laser-plasma accelerators

    SciTech Connect (OSTI)

    Benedetti, C.; Schroeder, C. B.; Esarey, E.; Leemans, W. P.

    2014-05-15

    The wakefield generated in a plasma by incoherently combining a large number of low energy laser pulses (i.e., without constraining the pulse phases) is studied analytically and by means of fully self-consistent particle-in-cell simulations. The structure of the wakefield has been characterized and its amplitude compared with the amplitude of the wake generated by a single (coherent) laser pulse. We show that, in spite of the incoherent nature of the wakefield within the volume occupied by the laser pulses, behind this region, the structure of the wakefield can be regular with an amplitude comparable or equal to that obtained from a single pulse with the same energy. Wake generation requires that the incoherent structures in the laser energy density produced by the combined pulses exist on a time scale short compared to the plasma period. Incoherent combination of multiple laser pulses may enable a technologically simpler path to high-repetition rate, high-average power laser-plasma accelerators, and associated applications.

  2. Light scattering from laser induced pit ensembles on high power laser optics

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Feigenbaum, Eyal; Elhadj, Selim; Matthews, Manyalibo J.

    2015-01-01

    Far-field light scattering characteristics from randomly arranged shallow Gaussian-like shaped laser induced pits, found on optics exposed to high energy laser pulses, is studied. Closed-form expressions for the far-field intensity distribution and scattered power are derived for individual pits and validated using numerical calculations of both Fourier optics and FDTD solutions to Maxwells equations. It is found that the scattered power is proportional to the square of the pit width and approximately also to the square of the pit depth, with the proportionality factor scaling with pit depth. As a result, the power scattered from shallow pitted optics is expectedmoreto be substantially lower than assuming complete scattering from the total visible footprint of the pits.less

  3. Light scattering from laser induced pit ensembles on high power laser optics

    SciTech Connect (OSTI)

    Feigenbaum, Eyal [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Elhadj, Selim [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Matthews, Manyalibo J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-01-01

    Far-field light scattering characteristics from randomly arranged shallow Gaussian-like shaped laser induced pits, found on optics exposed to high energy laser pulses, is studied. Closed-form expressions for the far-field intensity distribution and scattered power are derived for individual pits and validated using numerical calculations of both Fourier optics and FDTD solutions to Maxwells equations. It is found that the scattered power is proportional to the square of the pit width and approximately also to the square of the pit depth, with the proportionality factor scaling with pit depth. As a result, the power scattered from shallow pitted optics is expected to be substantially lower than assuming complete scattering from the total visible footprint of the pits.

  4. U.S. Coast Guard and Florida Power and Light Successfully Implement a Multi-Site UESC Project

    Broader source: Energy.gov [DOE]

    Fact sheet covers a case study that details a success story of a multi-site utility energy service contract (UESC) project between the United States Coast Guard and Florida Power and Light in Florida.

  5. Energy System and Thermoeconomic Analysis of Combined Heat and Power High Temperature Proton Exchange Membrane Fuel Cell Systems for Light Commercial Buildings

    SciTech Connect (OSTI)

    Colella, Whitney G.; Pilli, Siva Prasad

    2015-06-01

    The United States (U.S.) Department of Energy (DOE)s Pacific Northwest National Laboratory (PNNL) is spearheading a program with industry to deploy and independently monitor five kilowatt-electric (kWe) combined heat and power (CHP) fuel cell systems (FCSs) in light commercial buildings. This publication discusses results from PNNLs research efforts to independently evaluate manufacturer-stated engineering, economic, and environmental performance of these CHP FCSs at installation sites. The analysis was done by developing parameters for economic comparison of CHP installations. Key thermodynamic terms are first defined, followed by an economic analysis using both a standard accounting approach and a management accounting approach. Key economic and environmental performance parameters are evaluated, including (1) the average per unit cost of the CHP FCSs per unit of power, (2) the average per unit cost of the CHP FCSs per unit of energy, (3) the change in greenhouse gas (GHG) and air pollution emissions with a switch from conventional power plants and furnaces to CHP FCSs; (4) the change in GHG mitigation costs from the switch; and (5) the change in human health costs related to air pollution. From the power perspective, the average per unit cost per unit of electrical power is estimated to span a range from $1519,000/ kilowatt-electric (kWe) (depending on site-specific changes in installation, fuel, and other costs), while the average per unit cost of electrical and heat recovery power varies between $7,000 and $9,000/kW. From the energy perspective, the average per unit cost per unit of electrical energy ranges from $0.38 to $0.46/kilowatt-hour-electric (kWhe), while the average per unit cost per unit of electrical and heat recovery energy varies from $0.18 to $0.23/kWh. These values are calculated from engineering and economic performance data provided by the manufacturer (not independently measured data). The GHG emissions were estimated to decrease by one-third by shifting from a conventional energy system to a CHP FCS system. The GHG mitigation costs were also proportional to the changes in the GHG gas emissions. Human health costs were estimated to decrease significantly with a switch from a conventional system to a CHP FCS system.

  6. Neutron resonance averaging

    SciTech Connect (OSTI)

    Chrien, R.E.

    1986-10-01

    The principles of resonance averaging as applied to neutron capture reactions are described. Several illustrations of resonance averaging to problems of nuclear structure and the distribution of radiative strength in nuclei are provided. 30 refs., 12 figs.

  7. Second user workshop on high-power lasers at the Linac Coherent Light Source

    SciTech Connect (OSTI)

    Heimann, Phil; Glenzer, Siegfried

    2015-05-28

    The second international workshop on the physics enabled by the unique combination of high-power lasers with the world-class Linac Coherent Light Source (LCLS) free-electron X-ray laser beam was held in Stanford, CA, on October 7–8, 2014. The workshop was co-organized by UC Berkeley, Lawrence Berkeley, Lawrence Livermore, and SLAC National Accelerator Laboratories. More than 120 scientists, including 40 students and postdoctoral scientists who are working in high-intensity laser-matter interactions, fusion research, and dynamic high-pressure science came together from North America, Europe, and Asia. The focus of the second workshop was on scientific highlights and the lessons learned from 16 new experiments that were performed on the Matter in Extreme Conditions (MEC) instrument since the first workshop was held one year ago.

  8. Second user workshop on high-power lasers at the Linac Coherent Light Source

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Heimann, Phil; Glenzer, Siegfried

    2015-05-28

    The second international workshop on the physics enabled by the unique combination of high-power lasers with the world-class Linac Coherent Light Source (LCLS) free-electron X-ray laser beam was held in Stanford, CA, on October 7–8, 2014. The workshop was co-organized by UC Berkeley, Lawrence Berkeley, Lawrence Livermore, and SLAC National Accelerator Laboratories. More than 120 scientists, including 40 students and postdoctoral scientists who are working in high-intensity laser-matter interactions, fusion research, and dynamic high-pressure science came together from North America, Europe, and Asia. The focus of the second workshop was on scientific highlights and the lessons learned from 16 newmore » experiments that were performed on the Matter in Extreme Conditions (MEC) instrument since the first workshop was held one year ago.« less

  9. Demonstration Assessment of Light-Emitting Diode (LED) Retrofit Lamps at the Lobby of the Bonneville Power Administration, Portland, OR

    SciTech Connect (OSTI)

    Miller, Naomi

    2011-07-01

    This report describes the process and results of a demonstration of solid-state lighting (SSL) technology in the lobby of the Bonneville Power Administration (BPA) headquarters building in Portland, Oregon. The project involved a simple retrofit of 32 track lights used to illuminate historical black-and-white photos and printed color posters from the 1930s and 1940s. BPA is a federal power marketing agency in the Northwestern United States, and selected this prominent location to demonstrate energy efficient light-emitting diode (LED) retrofit options that not only can reduce the electric bill for their customers but also provide attractive alternatives to conventional products, in this case accent lighting for BPA's historical artwork.

  10. Installation of the Light-Water Breeder Reactor at the Shippingport Atomic Power Station (LWBR Development Program)

    SciTech Connect (OSTI)

    Massimino, R.J.; Williams, D.A.

    1983-05-01

    This report summarizes the refueling operations performed to install a Light Water Breeder Reactor (LWBR) core into the existing pressurized water reactor vessel at the Shippingport Atomic Power Station. Detailed descriptions of the major installation operations (e.g., primary system preconditioning, fuel installation, pressure boundary seal welding) are included as appendices to this report; these operations are of technical interest to any reactor servicing operation, whether the reactor is a breeder or a conventional light water non-breeder core.

  11. Low Power, Red, Green and Blue Carbon Nanotube Enabled Vertical Organic Light Emitting Transistors for Active Matrix OLED Displays

    SciTech Connect (OSTI)

    McCarthy, M. A. [University of Florida, Gainesville; Liu, B. [University of Florida, Gainesville; Donoghue, E. P. [University of Florida, Gainesville; Kravchenko, Ivan I [ORNL; Kim, D. Y. [University of Florida, Gainesville; So, Franky [University of Florida, Gainesville; Rinzler, A. G. [University of Florida, Gainesville

    2011-01-01

    Organic semiconductors are potential alternatives to polycrystalline silicon as the semiconductor used in the backplane of active matrix organic light emitting diode displays. Demonstrated here is a light-emitting transistor with an organic channel, operating with low power dissipation at low voltage, and high aperture ratio, in three colors: red, green and blue. The single-wall carbon nanotube network source electrode is responsible for the high level of performance demonstrated. A major benefit enabled by this architecture is the integration of the drive transistor, storage capacitor and light emitter into a single device. Performance comparable to commercialized polycrystalline-silicon TFT driven OLEDs is demonstrated.

  12. American National Standard: design requirements for light water reactor spent fuel storage facilities at nuclear power plants

    SciTech Connect (OSTI)

    Not Available

    1983-10-07

    This standard presents necessary design requirements for facilities at nuclear power plants for the storage and preparation for shipment of spent fuel from light-water moderated and cooled nuclear power stations. It contains requirements for the design of fuel storage pool; fuel storage racks; pool makeup, instrumentation and cleanup systems; pool structure and integrity; radiation shielding; residual heat removal; ventilation, filtration and radiation monitoring systems; shipping cask handling and decontamination; building structure and integrity; and fire protection and communication.

  13. Solid core dipoles and switching power supplies: Lower cost light sources?

    SciTech Connect (OSTI)

    Benesch, Jay; Philip, Sarin

    2015-05-05

    As a result of improvements in power semiconductors, moderate frequency switching supplies can now provide the hundreds of amps typically required by accelerators with zero-to-peak noise in the kHz region ~ 0.06% in current or voltage mode. Modeling was undertaken using a finite electromagnetic program to determine if eddy currents induced in the solid steel of CEBAF magnets and small supplemental additions would bring the error fields down to the 5ppm level needed for beam quality. The expected maximum field of the magnet under consideration is 0.85 T and the DC current required to produce that field is used in the calculations. An additional 0.1% current ripple is added to the DC current at discrete frequencies 360 Hz, 720 Hz or 7200 Hz. Over the region of the pole within 0.5% of the central integrated BdL the resulting AC field changes can be reduced to less than 1% of the 0.1% input ripple for all frequencies, and a sixth of that at 7200 Hz. Doubling the current, providing 1.5 T central field, yielded the same fractional reduction in ripple at the beam for the cases checked. A small dipole was measured at 60, 120, 360 and 720 Hz in two conditions and the results compared to the larger model for the latter two frequencies with surprisingly good agreement. Thus, for light sources with aluminum vacuum vessels and full energy linac injection, the combination of solid core dipoles and switching power supplies may result in significant cost savings.

  14. Biodiesel Drives Florida Power & Light's EPAct Alternative Compliance Strategy; EPAct Alternative Fuel Transportation Program: Success Story (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-05-01

    This success story highlights how Florida Power & Light Company has successfully complied with the Energy Policy Act of 1992 (EPAct) through Alternative Compliance using biodiesel technologies and how it has become a biofuel leader, reducing petroleum use and pollutant emissions throughout Florida.

  15. Accident source terms for Light-Water Nuclear Power Plants. Final report

    SciTech Connect (OSTI)

    Soffer, L.; Burson, S.B.; Ferrell, C.M.; Lee, R.Y.; Ridgely, J.N.

    1995-02-01

    In 1962 tile US Atomic Energy Commission published TID-14844, ``Calculation of Distance Factors for Power and Test Reactors`` which specified a release of fission products from the core to the reactor containment for a postulated accident involving ``substantial meltdown of the core``. This ``source term``, tile basis for tile NRC`s Regulatory Guides 1.3 and 1.4, has been used to determine compliance with tile NRC`s reactor site criteria, 10 CFR Part 100, and to evaluate other important plant performance requirements. During the past 30 years substantial additional information on fission product releases has been developed based on significant severe accident research. This document utilizes this research by providing more realistic estimates of the ``source term`` release into containment, in terms of timing, nuclide types, quantities and chemical form, given a severe core-melt accident. This revised ``source term`` is to be applied to the design of future light water reactors (LWRs). Current LWR licensees may voluntarily propose applications based upon it.

  16. Spatial filters for high average power lasers

    DOE Patents [OSTI]

    Erlandson, Alvin C

    2012-11-27

    A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second slit filter positioned between the second pair of cylindrical lenses.

  17. Apparatus for injecting high power laser light into a fiber optic cable

    DOE Patents [OSTI]

    Sweatt, William C. (Albuquerque, NM)

    1997-01-01

    High intensity laser light is evenly injected into an optical fiber by the combination of a converging lens and a multisegment kinoform (binary optical element). The segments preferably have multi-order gratings on each which are aligned parallel to a radial line emanating from the center of the kinoform and pass through the center of the element. The grating in each segment causes circumferential (lateral) dispersion of the light, thereby avoiding detrimental concentration of light energy within the optical fiber.

  18. FirstEnergy (Mon Power & Potomac Edison)- Business Lighting Incentive Program

    Broader source: Energy.gov [DOE]

    FirstEnergy's commercial, industrial, and governmental customers are eligible to participate in the Business Lighting Incentive Program. This program provides a performance-based rebate for energ...

  19. Kansas City Power & Light- Commercial/Industrial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Standard incentives are available for lighting and controls; air conditioning, heat pumps, and chillers; pumps and variable frequency drives; appliances; business computing; food service and refr...

  20. U.S. Coast Guard and Florida Power & Light Successfully Implement a Multi-Site UESC Project

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

    Coast Guard and Florida Power & Light Successfully Implement a Multi-Site UESC Project As the largest component of the Department of Homeland Security (DHS), more than 42,000 active-duty members of the U.S. Coast Guard safeguard the nation's maritime interests. Consequently, Coast Guard facilities represent about 60 percent of the DHS shore energy use portfolio. Under the National Energy Conservation Policy Act (NECPA) and Executive Order 13423, the Coast Guard has reduced its facility

  1. Concentration Averaging | Department of Energy

    Office of Environmental Management (EM)

    Concentration Averaging Concentration Averaging Summary Notes from 3 October 2007 Generic Technical Issue Discussion on Concentration Averaging PDF icon Summary Notes from 3...

  2. Light Water Reactor Sustainability Program Power Uprate Research and Development Strategy

    SciTech Connect (OSTI)

    Hongbin Zhang

    2011-09-01

    The economic incentives for low-cost electricity generation will continue to drive more plant owners to identify safe and reliable methods to increase the electrical power output of the current nuclear power plant fleet. A power uprate enables a nuclear power plant to increase its electrical output with low cost. However, power uprates brought new challenges to plant owners and operators. These include equipment damage or degraded performance, and unanticipated responses to plant conditions, etc. These problems have arisen mainly from using dated design and safety analysis tools and insufficient understanding of the full implications of the proposed power uprate or from insufficient attention to detail during the design and implementation phase. It is essential to demonstrate that all required safety margins have been properly retained and the existing safety level has been maintained or even increased, with consideration of all the conditions and parameters that have an influence on plant safety. The impact of the power uprate on plant life management for long term operation is also an important issue. Significant capital investments are required to extend the lifetime of an aging nuclear power plant. Power uprates can help the plant owner to recover the investment costs. However, plant aging issues may be aggravated by the power uprate due to plant conditions. More rigorous analyses, inspections and monitoring systems are required.

  3. System and Battery Charge Control for PV-Powered AC Lighting Systems

    SciTech Connect (OSTI)

    Kern, G.

    1999-04-01

    This report reviews a number of issues specific to stand-alone AC lighting systems. A review of AC lighting technology is presented, which discusses the advantages and disadvantages of various lamps. The best lamps for small lighting systems are compact fluorescent. The best lamps for intermediate-size systems are high- or low-pressure sodium. Specifications for battery charging and load control are provided with the goal of achieving lamp lifetimes on the order of 16,000 to 24,000 hours and battery lifetimes of 4 to 5 years. A rough estimate of the potential domestic and global markets for stand-alone AC lighting systems is presented. DC current injection tests were performed on high-pressure sodium lamps and the test results are presented. Finally, a prototype system was designed and a prototype system controller (with battery charger and DC/AC inverter) was developed and built.

  4. Average Commercial Price

    Gasoline and Diesel Fuel Update (EIA)

    Pipeline and Distribution Use Price Citygate Price Residential Price Commercial Price Industrial Price Vehicle Fuel Price Electric Power Price Proved Reserves as of 12/31 Reserves Adjustments Reserves Revision Increases Reserves Revision Decreases Reserves Sales Reserves Acquisitions Reserves Extensions Reserves New Field Discoveries New Reservoir Discoveries in Old Fields Estimated Production Number of Producing Gas Wells Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From

  5. Average Commercial Price

    Gasoline and Diesel Fuel Update (EIA)

    Citygate Price Residential Price Commercial Price Industrial Price Electric Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells Repressuring Nonhydrocarbon Gases Removed Vented and Flared Marketed Production NGPL Production, Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports By Pipeline LNG Exports Underground Storage Capacity Gas in Underground

  6. Average Residential Price

    Gasoline and Diesel Fuel Update (EIA)

    Pipeline and Distribution Use Price Citygate Price Residential Price Commercial Price Industrial Price Vehicle Fuel Price Electric Power Price Proved Reserves as of 12/31 Reserves Adjustments Reserves Revision Increases Reserves Revision Decreases Reserves Sales Reserves Acquisitions Reserves Extensions Reserves New Field Discoveries New Reservoir Discoveries in Old Fields Estimated Production Number of Producing Gas Wells Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From

  7. Average Residential Price

    Gasoline and Diesel Fuel Update (EIA)

    Citygate Price Residential Price Commercial Price Industrial Price Electric Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells Repressuring Nonhydrocarbon Gases Removed Vented and Flared Marketed Production NGPL Production, Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports By Pipeline LNG Exports Underground Storage Capacity Gas in Underground

  8. Florida Power and Light Comments on Smart Grid Request For Information...

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

    it continues to be developed and deployed, can be an enabler for better and more reliable control of the electric power system, enhanced management and monitoring of the grid, and...

  9. "2014 Average Monthly Bill- Commercial"

    U.S. Energy Information Administration (EIA) Indexed Site

    Consumption (kWh)","Average Price (centskWh)","Average Monthly Bill (Dollar and cents)" "New England",862269,5132.4894,14.699138,754.43169 "Connecticut",155372,6915.4089,15.547557...

  10. EFFECT OF A HIGH OPACITY ON THE LIGHT CURVES OF RADIOACTIVELY POWERED TRANSIENTS FROM COMPACT OBJECT MERGERS

    SciTech Connect (OSTI)

    Barnes, Jennifer; Kasen, Daniel [Departments of Physics and Astronomy, 366 LeConte Hall, University of California, Berkeley, CA 94720 (United States)

    2013-09-20

    The coalescence of compact objects is a promising astrophysical source of detectable gravitational wave signals. The ejection of r-process material from such mergers may lead to a radioactively powered electromagnetic counterpart signal which, if discovered, would enhance the science returns. As very little is known about the optical properties of heavy r-process elements, previous light-curve models have adopted opacities similar to those of iron group elements. Here we consider the effect of heavier elements, particularly the lanthanides, which increase the ejecta opacity by several orders of magnitude. We include these higher opacities in time-dependent, multi-wavelength radiative transport calculations to predict the broadband light curves of one-dimensional models over a range of parameters (ejecta masses {approx}10{sup -3}-10{sup -1} M{sub Sun} and velocities {approx}0.1-0.3 c). We find that the higher opacities lead to much longer duration light curves which can last a week or more. The emission is shifted toward the infrared bands due to strong optical line blanketing, and the colors at later times are representative of a blackbody near the recombination temperature of the lanthanides (T {approx} 2500 K). We further consider the case in which a second mass outflow, composed of {sup 56}Ni, is ejected from a disk wind, and show that the net result is a distinctive two component spectral energy distribution, with a bright optical peak due to {sup 56}Ni and an infrared peak due to r-process ejecta. We briefly consider the prospects for detection and identification of these transients.

  11. Laser Drilling: Drilling with the Power of Light Phase 1: Feasibility Study

    SciTech Connect (OSTI)

    Brian C. Gahan; Richard A. Parker; Ramona Graves; Samih Batarseh; Claude B. Reed; Zhiyue Xu; Humberto Figueroa; Neal Skinner

    2001-09-01

    A laser drilling research team was formed from members of academia, industry and national laboratory to explore the feasibility of using modern high-powered lasers to drill and complete oil and gas wells. The one-year Phase 1 study discussed in this report had the goals of quantifying the amount of pulsed infrared laser energy needed to spall and melt rock of varying lithologies and to investigate the possibility of accomplishing the same task in water under atmospheric conditions. Previous work by some members of this team determined that continuous wave lasers of varying wavelengths have more than enough power to cut, melt and vaporize rock. Samples of sandstone, limestone, and shale were prepared for laser beam interaction with a 1.6 kW pulsed Nd:YAG laser beam to determine how the beam's size, power, repetition rate, pulse width, exposure time and energy can affect the amount of energy transferred to the rock for the purposes of spallation, melting and vaporization. The purpose of the laser rock interaction experiment was to determine the threshold parameters required to remove a maximum rock volume from the samples while minimizing energy input. Absorption of radiant energy from the laser beam gives rise to the thermal energy transfer required for the destruction and removal of the rock matrix. Results from the tests indicate that each rock type has a set of optimal laser parameters to minimize specific energy (SE) values as observed in a set of linear track and spot tests. In addition, it was observed that the rates of heat diffusion in rocks are easily and quickly overrun by absorbed energy transfer rates from the laser beam to the rock. As absorbed energy outpaces heat diffusion by the rock matrix, local temperatures can rise to the melting points of the minerals and quickly increase observed SE values. The lowest SE values are obtained in the spalling zone just prior to the onset of mineral melt. The current study determined that using pulsed lasers could accomplish removing material from rock more efficiently than continuous wave lasers. The study also determined that reducing the effect of secondary energy absorbing mechanisms resulted in lower energy requirements in shale and, to some extent, in sandstones. These secondary mechanisms are defined as physical processes that divert beam energy from directly removing rock, and may include thermally-induced phase behavior changes of rock minerals (i.e., melting, vaporization, and dissociation) and fractures created by thermal expansion. Limestone is spalled by a different mechanism and does not seem to be as affected by secondary mechanisms. It was also shown that the efficiency of the cutting mechanism improved by saturating porous rock samples with water, and that a laser beam injected directly through a water layer at a sandstone sample was able to spall and melt the sample.

  12. Mobile lighting apparatus

    DOE Patents [OSTI]

    Roe, George Michael; Klebanoff, Leonard Elliott; Rea, Gerald W; Drake, Robert A; Johnson, Terry A; Wingert, Steven John; Damberger, Thomas A; Skradski, Thomas J; Radley, Christopher James; Oros, James M; Schuttinger, Paul G; Grupp, David J; Prey, Stephen Carl

    2013-05-14

    A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

  13. Spacetime averaged null energy condition

    SciTech Connect (OSTI)

    Urban, Douglas; Olum, Ken D.

    2010-06-15

    The averaged null energy condition has known violations for quantum fields in curved space, even when one considers only achronal geodesics. Many such examples involve rapid variation in the stress-energy tensor in the vicinity of the geodesic under consideration, giving rise to the possibility that averaging in additional dimensions would yield a principle universally obeyed by quantum fields. However, after discussing various procedures for additional averaging, including integrating over all dimensions of the manifold, we give here a class of examples that violate any such averaged condition.

  14. Fact #870: April 27, 2015 Corporate Average Fuel Economy Progress,

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

    1978-2014 | Department of Energy 70: April 27, 2015 Corporate Average Fuel Economy Progress, 1978-2014 Fact #870: April 27, 2015 Corporate Average Fuel Economy Progress, 1978-2014 The Corporate Average Fuel Economy (CAFE) is the sales-weighted harmonic mean fuel economy of a manufacturer's fleet of new cars or light trucks in a certain model year (MY). First enacted by Congress in 1975, the standards for cars began in MY 1978 and for light trucks in MY 1979. In general, the average of all

  15. 2014 Average Monthly Bill- Residential

    U.S. Energy Information Administration (EIA) Indexed Site

    Consumption (kWh) Average Price (centskWh) Average Monthly Bill (Dollar and cents) New England 6,243,013 630 17.82 112.31 Connecticut 1,459,239 730 19.75 144.10 Maine...

  16. 2014 Average Monthly Bill- Commercial

    U.S. Energy Information Administration (EIA) Indexed Site

    Consumption (kWh) Average Price (centskWh) Average Monthly Bill (Dollar and cents) New England 862,269 5,132 14.70 754.43 Connecticut 155,372 6,915 15.55 1,075.18 Maine...

  17. Fact #624: May 24, 2010 Corporate Average Fuel Economy Standards...

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

    Standards, Model Years 2012-2016 The final rule for the Corporate Average Fuel Economy (CAFE) Standards was published in March 2010. Under this rule, each light vehicle model...

  18. Light Water Reactor Sustainability Program: Computer-based procedure for field activities: results from three evaluations at nuclear power plants

    SciTech Connect (OSTI)

    Oxstrand, Johanna; Bly, Aaron; LeBlanc, Katya

    2014-09-01

    Nearly all activities that involve human interaction with the systems of a nuclear power plant are guided by procedures. The paper-based procedures (PBPs) currently used by industry have a demonstrated history of ensuring safety; however, improving procedure use could yield tremendous savings in increased efficiency and safety. One potential way to improve procedure-based activities is through the use of computer-based procedures (CBPs). Computer-based procedures provide the opportunity to incorporate context driven job aids, such as drawings, photos, just-in-time training, etc into CBP system. One obvious advantage of this capability is reducing the time spent tracking down the applicable documentation. Additionally, human performance tools can be integrated in the CBP system in such way that helps the worker focus on the task rather than the tools. Some tools can be completely incorporated into the CBP system, such as pre-job briefs, placekeeping, correct component verification, and peer checks. Other tools can be partly integrated in a fashion that reduces the time and labor required, such as concurrent and independent verification. Another benefit of CBPs compared to PBPs is dynamic procedure presentation. PBPs are static documents which limits the degree to which the information presented can be tailored to the task and conditions when the procedure is executed. The CBP system could be configured to display only the relevant steps based on operating mode, plant status, and the task at hand. A dynamic presentation of the procedure (also known as context-sensitive procedures) will guide the user down the path of relevant steps based on the current conditions. This feature will reduce the users workload and inherently reduce the risk of incorrectly marking a step as not applicable and the risk of incorrectly performing a step that should be marked as not applicable. As part of the Department of Energys (DOE) Light Water Reactors Sustainability Program, researchers at Idaho National Laboratory (INL) along with partners from the nuclear industry have been investigating the design requirements for computer-based work instructions (including operations procedures, work orders, maintenance procedures, etc.) to increase efficiency, safety, and cost competitiveness of existing light water reactors.

  19. 2014 Average Monthly Bill- Industrial

    Gasoline and Diesel Fuel Update (EIA)

    Industrial (Data from forms EIA-861- schedules 4A-D, EIA-861S and EIA-861U) State Number of Customers Average Monthly Consumption (kWh) Average Price (cents/kWh) Average Monthly Bill (Dollar and cents) New England 28,017 56,833 11.84 6,730.30 Connecticut 4,648 63,016 12.92 8,138.94 Maine 3,023 92,554 8.95 8,281.27 Massachusetts 14,896 44,536 12.74 5,674.13 New Hampshire 3,342 49,099 11.93 5,857.27 Rhode Island 1,884 39,241 12.86 5,047.36 Vermont 224 527,528 10.23 53,984.67 Middle Atlantic 44,397

  20. Variable Average Absolute Percent Differences

    Gasoline and Diesel Fuel Update (EIA)

    Variable Average Absolute Percent Differences Percent of Projections Over- Estimated Gross Domestic Product Real Gross Domestic Product (Average Cumulative Growth)* (Table 2) 0.9 45.8 Petroleum Imported Refiner Acquisition Cost of Crude Oil (Constant $) (Table 3a) 37.7 17.3 Imported Refiner Acquisition Cost of Crude Oil (Nominal $) (Table 3b) 36.6 18.7 Total Petroleum Consumption (Table 4) 7.9 70.7 Crude Oil Production (Table 5) 8.1 51.1 Petroleum Net Imports (Table 6) 24.7 73.8 Natural Gas

  1. In-Situ Measurement of Crystalline Silicon Modules Undergoing Potential-Induced Degradation in Damp Heat Stress Testing for Estimation of Low-Light Power Performance

    SciTech Connect (OSTI)

    Hacke, P.; Terwilliger, K.; Kurtz, S.

    2013-08-01

    The extent of potential-induced degradation of crystalline silicon modules in an environmental chamber is estimated using in-situ dark I-V measurements and applying superposition analysis. The dark I-V curves are shown to correctly give the module power performance at 200, 600 and 1,000 W/m2 irradiance conditions, as verified with a solar simulator. The onset of degradation measured in low light in relation to that under one sun irradiance can be clearly seen in the module design examined; the time to 5% relative degradation measured in low light (200 W/m2) was 28% less than that of full sun (1,000 W/m2 irradiance). The power of modules undergoing potential-induced degradation can therefore be characterized in the chamber, facilitating statistical analyses and lifetime forecasting.

  2. Lighting Control Energy Savings

    Energy Science and Technology Software Center (OSTI)

    1985-01-01

    CONTROLITE 1.0 is a lighting energy analysis program designed to calculate the energy savings and cost benefits obtainable using lighting controls in buildings. The program can compute the lighting energy reductions that result from using daylighting, scheduling, and other control strategies. When modeling daylight control systems, the program uses QUICKLITE to compute the daylight illuminances at specified points 5 times a day, 12 days a year (the 21st of each month), and for two skymore » conditions (clear and overcast skies). Fourier series techniques are used to fit a continuous curve through the computed illuminance points. The energy use for each of the 12 days is then computed given user-specified power-in/light-out characteristics of the modeled control system. The monthly and annual energy usage for overcast and clear conditions are found separately by fitting two long-term Fourier series curves to the energy use computed for each of the 12 days. Finally, the monthly energy use is calculated by taking a weighted average for the monthly energy use computed for the overcast and clear sky conditions. The program only treats the energy use directly attributable to lighting. The impact of lighting control strategies on building thermal loads is not computed. The program allows input of different control schedules (i.e., on/off times for the lighting system) for each day of the week, but every week of the year is treated the same; thus, holidays cannot be modeled explicitly. When used for daylighting purposes, CONTROLITE1.0 understands only clear and overcast conditions. User-supplied values for the proportion of clear and overcast hours for each month of the year are required to accommodate different climatic conditions.« less

  3. Environmental Assessment for Central Power and Light Company`s proposed Military Highway-CFE tie 138/69-kV transmission line project Brownsville, Cameron County, Texas

    SciTech Connect (OSTI)

    Not Available

    1992-04-01

    Central Power and Light Company (CPL) intends to upgrade its existing transmission line ties with the Commision Federal de Electricidad (CFE) system in Mexico. CPL currently has a single 69-kilovolt (kV) transmission line in the Brownsville area which connects CPL`s system with the system of CFE. This existing line runs between the Brownsville Switching Station, located on Laredo Road in Brownsville, Cameron County, Texas, and an existing CFE 69-kV line at the Rusteberg Bend of the Rio Grande in Cameron County. Under current conditions of need, the existing 69-kV line does not possess sufficient capability to engage in appropriate power exchanges. Therefore, CPL is proposing to build a new line to link up with CFE. This proposed line would be a double-circuit line, which would (1) continue (on a slightly relocated route) the existing 69-kV tie from CPL`s Brownsville Switching Station to CFE`s facilities, and (2) add a 138-kV tie from the Military Highway Substation, located on Military Highway (US Highway 281), to CFE`s facilities. The proposed 138/69-kV line, which will be constructed and operated by CPL, will be built primarily on steel single-pole structures within an average 60-foot (ft) wide right-of-way (ROW). It will be approximately 6900--9200 ft (1.3--1.7 miles) in length, depending on the alternative route constructed.

  4. NRC review of Electric Power Research Institute`s advanced light water reactor utility requirements document. Passive plant designs, chapters 2-13, project number 669

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    The Electric Power Research Institute (EPRI) is preparing a compendium of technical requirements, referred to as the {open_quotes}Advanced Light Water Reactor [ALWR] Utility Requirements Document{close_quotes}, that is acceptable to the design of an ALWR power plant. When completed, this document is intended to be a comprehensive statement of utility requirements for the design, construction, and performance of an ALWR power plant for the 1990s and beyond. The Requirements Document consists of three volumes. Volume I, {open_quotes}ALWR Policy and Summary of Top-Tier Requirements{close_quotes}, is a management-level synopsis of the Requirements Document, including the design objectives and philosophy, the overall physical configuration and features of a future nuclear plant design, and the steps necessary to take the proposed ALWR design criteria beyond the conceptual design state to a completed, functioning power plant. Volume II consists of 13 chapters and contains utility design requirements for an evolutionary nuclear power plant [approximately 1350 megawatts-electric (MWe)]. Volume III contains utility design requirements for nuclear plants for which passive features will be used in their designs (approximately 600 MWe). In April 1992, the staff of the Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, issued Volume 1 and Volume 2 (Parts 1 and 2) of its safety evaluation report (SER) to document the results of its review of Volumes 1 and 2 of the Requirements Document. Volume 1, {open_quotes}NRC Review of Electric Power Research Institute`s Advanced Light Water Reactor Utility Requirements Document - Program Summary{close_quotes}, provided a discussion of the overall purpose and scope of the Requirements Document, the background of the staff`s review, the review approach used by the staff, and a summary of the policy and technical issues raised by the staff during its review.

  5. Philips Lumileds Lighting Co | Open Energy Information

    Open Energy Info (EERE)

    of high-power LEDs and solid-state lighting solutions for automotive lighting, computer displays, LCD televisions, signs and signaling and architectural lighting....

  6. Enhanced optical power of GaN-based light-emitting diode with compound photonic crystals by multiple-exposure nanosphere-lens lithography

    SciTech Connect (OSTI)

    Zhang, Yonghui; Wei, Tongbo, E-mail: tbwei@semi.ac.cn; Xiong, Zhuo; Shang, Liang; Tian, Yingdong; Zhao, Yun; Zhou, Pengyu; Wang, Junxi; Li, Jinmin [Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China)

    2014-07-07

    The light-emitting diodes (LEDs) with single, twin, triple, and quadruple photonic crystals (PCs) on p-GaN are fabricated by multiple-exposure nanosphere-lens lithography (MENLL) process utilizing the focusing behavior of polystyrene spheres. Such a technique is easy and economical for use in fabricating compound nano-patterns. The optimized tilted angle is decided to be 26.6 through mathematic calculation to try to avoid the overlay of patterns. The results of scanning electron microscopy and simulations reveal that the pattern produced by MENLL is a combination of multiple ovals. Compared to planar-LED, the light output power of LEDs with single, twin, triple, and quadruple PCs is increased by 14.78%, 36.03%, 53.68%, and 44.85% under a drive current 350?mA, respectively. Furthermore, all PC-structures result in no degradation of the electrical properties. The stimulated results indicate that the highest light extraction efficiency of LED with the clover-shape triple PC is due to the largest scattering effect on propagation of light from GaN into air.

  7. Feasibility study results for dry sorbent furnace injection for SO sub 2 control Prairie Creek No. 4 Iowa Electric Light and Power Company

    SciTech Connect (OSTI)

    Smith, P.V. ); Rehrauer, H.W. )

    1991-01-01

    As a result of the recent passage of new amendments to the Clean Air Act, many U.S. power plants will be required to reduce sulfur dioxide (SO{sub 2}) emissions. Iowa Electric Light and Power (IELP) was interested in investigating a number of options that will allow Prairie Creek Unit 4 to operate in compliance with these new regulations. One of these options was Dry Sorbent Injection (DSI), a relatively simple and low cost retrofit technique, useful for controlling SO{sub 2} concentrations in coal combustion flue gas. The purpose of the program was to obtain operational data necessary to aid in the identification and assessment of DSI options that have a high potential for successful application. This paper contains a summary and analysis of the data obtained during the test effort. It also contains a discussion of the results of each of the major tasks undertaken to accomplish this feasibility study.

  8. High average power laser using a transverse flowing liquid host

    DOE Patents [OSTI]

    Ault, Earl R.; Comaskey, Brian J.; Kuklo, Thomas C.

    2003-07-29

    A laser includes an optical cavity. A diode laser pumping device is located within the optical cavity. An aprotic lasing liquid containing neodymium rare earth ions fills the optical cavity. A circulation system that provides a closed loop for circulating the aprotic lasing liquid into and out of the optical cavity includes a pump and a heat exchanger.

  9. Historical Average Priority Firm Power Rates (rates/previous...

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

    (A to Z) - - - - - - - - - - - - - Account Executives Administrator's RODs Aluminum Industry Study (2000-01) Billing Procedures Customer Service Centers Daily Notice Document...

  10. Feasibility Study of Supercritical Light Water Cooled Reactors for Electric Power Production, Progress Report for Work Through September 2003, 2nd Annual/8th Quarterly Report

    SciTech Connect (OSTI)

    Philip E. MacDonald

    2003-09-01

    The supercritical water-cooled reactor (SCWR) is one of the six reactor technologies selected for research and development under the Generation-IV program. SCWRs are promising advanced nuclear systems because of their high thermal efficiency (i.e., about 45% vs. about 33% efficiency for current Light Water Reactors, LWRs) and considerable plant simplification. SCWRs are basically LWRs operating at higher pressure and temperatures with a direct once-through cycle. Operation above the critical pressure eliminates coolant boiling, so the coolant remains single-phase throughout the system. Thus the need for recirculation and jet pumps, a pressurizer, steam generators, steam separators and dryers is eliminated. The main mission of the SCWR is generation of low-cost electricity. It is built upon two proven technologies, LWRs, which are the most commonly deployed power generating reactors in the world, and supercritical fossil-fired boilers, a large number of which is also in use around the world.

  11. Report of the South Texas Project Allegations Review Team. Docket Nos. 50-498 and 50-499, Houston Lighting and Power Company et al.

    SciTech Connect (OSTI)

    Kokajko, L.; Skay, D.; Wang, H.; Murphy, D.

    1995-03-01

    This report provides the results of the South Texas Project Allegations Review Team of the US Nuclear Regulatory Commission. This team was formed to obtain and review allegations from individuals represented by three attorneys who had contacted Congressional staff members. The allegers were employed in various capacities at South Texas Project Electric Generating Station, licensed by Houston Lighting and Power Company, et al.; therefore, the allegations are confined to this site. The South Texas Project Allegations Review Team reviewed, referred, and dispositioned concerns related to discriminatory issues (harassment and intimidation), falsification of records and omission of information, and various technical issues. The team was able to substantiate certain technical issues of minor safety significance or regulatory concern at the South Texas Project facility, but it did not find widespread discriminatory practices such as harassment and intimidation.

  12. STEO January 2013 - average gasoline prices

    U.S. Energy Information Administration (EIA) Indexed Site

    drivers to see lower average gasoline prices in 2013 and 2014 U.S. retail gasoline prices are expected to decline over the next two years. The average pump price for regular...

  13. ARM - Evaluation Product - Areal Average Albedo (AREALAVEALB)

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

    ProductsAreal Average Albedo (AREALAVEALB) ARM Data Discovery Browse Data Documentation Use the Data File Inventory tool to view data availability at the file level. Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Areal Average Albedo (AREALAVEALB) [ ARM research - evaluation data product ] The Areal Averaged Albedo VAP yields areal averaged surface spectral albedo estimates from MFRSR measurements collected under fully

  14. Tips: Lighting | Department of Energy

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

    Lighting Tips: Lighting Lighting choices save you money. Energy-efficient light bulbs are available in a wide variety of sizes and shapes. Lighting choices save you money. Energy-efficient light bulbs are available in a wide variety of sizes and shapes. An average household dedicates about 5% of its energy budget to lighting. Switching to energy-efficient lighting is one of the fastest ways to cut your energy bills. Timers and motion sensors save you even more money by reducing the amount of

  15. Orcas Power & Light- MORE Green Power Program

    Broader source: Energy.gov [DOE]

    Incentive payments will be paid per kilowatt hour (kWh) of production, with a rate based on the year in which the system is interconnected. In 2014, incentive rates were adjusted to accommodate f...

  16. Average and effective Q-values for fission product average (n...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Average and effective Q-values for fission product average (n,2n) and (n,3n) reaction cross sections Citation Details In-Document Search Title: Average and...

  17. Demonstration Assessment of Light-Emitting Diode (LED) Street Lighting Host Site: Lija Loop, Portland, Oregon

    SciTech Connect (OSTI)

    Kinzey, Bruce R.; Myer, Michael

    2009-11-01

    This report describes the process and results of a demonstration of solid-state lighting (SSL) technology in a residential street lighting application, under the U.S. Department of Energy GATEWAY Solid-State Lighting Technology Demonstration Program. In this project, eight 100W (nominal) high-pressure sodium cobra head fixtures were replaced with a like number of LED street light luminaires manufactured by Leotek, Inc. The Leotek product achieved an estimated payback in the Lija Loop installation of about 20 years for replacement scenarios and a much shorter 7.6 years for new installations. Much of the associated energy savings (55%) supporting these payback periods, however, were achieved by reducing average horizontal photopic illuminance a similar amount (53%). Examined from a different perspective, the measured performance suggests that the Leotek product is at approximate parity with the HPS cobra head in terms of average delivered photopic illumination for a given power consumption. HPS comprises the second most efficacious street lighting technology available, exceeded only by low pressure sodium (LPS). LPS technology is not considered suitable for most street lighting applications due to its monochromatic spectral output and poor color rendering ability; therefore, this LED product is performing at an efficiency level comparable to its primary competition in this application.

  18. Dynamic Multiscale Averaging (DMA) of Turbulent Flow

    SciTech Connect (OSTI)

    Richard W. Johnson

    2012-09-01

    A new approach called dynamic multiscale averaging (DMA) for computing the effects of turbulent flow is described. The new method encompasses multiple applications of temporal and spatial averaging, that is, multiscale operations. Initially, a direct numerical simulation (DNS) is performed for a relatively short time; it is envisioned that this short time should be long enough to capture several fluctuating time periods of the smallest scales. The flow field variables are subject to running time averaging during the DNS. After the relatively short time, the time-averaged variables are volume averaged onto a coarser grid. Both time and volume averaging of the describing equations generate correlations in the averaged equations. These correlations are computed from the flow field and added as source terms to the computation on the next coarser mesh. They represent coupling between the two adjacent scales. Since they are computed directly from first principles, there is no modeling involved. However, there is approximation involved in the coupling correlations as the flow field has been computed for only a relatively short time. After the time and spatial averaging operations are applied at a given stage, new computations are performed on the next coarser mesh using a larger time step. The process continues until the coarsest scale needed is reached. New correlations are created for each averaging procedure. The number of averaging operations needed is expected to be problem dependent. The new DMA approach is applied to a relatively low Reynolds number flow in a square duct segment. Time-averaged stream-wise velocity and vorticity contours from the DMA approach appear to be very similar to a full DNS for a similar flow reported in the literature. Expected symmetry for the final results is produced for the DMA method. The results obtained indicate that DMA holds significant potential in being able to accurately compute turbulent flow without modeling for practical engineering applications.

  19. Measurement of XeI and XeII velocity in the near exit plane of a low-power Hall effect thruster by light induced fluorescence spectroscopy

    SciTech Connect (OSTI)

    Dancheva, Y.; Biancalana, V.; Pagano, D.; Scortecci, F.

    2013-06-15

    Near exit plane non-resonant light induced fluorescence spectroscopy is performed in a Hall effect low-power Xenon thruster at discharge voltage of 250 V and anode flow rate of 0.7 mg/s. Measurements of the axial and radial velocity components are performed, exciting the 6s{sup 2}[3/2]{sub 2}{sup o}{yields}6p{sup 2}[3/2]{sub 2} transition at 823.16 nm in XeI and the 5d[4]{sub 7/2}{yields}6p[3]{sub 5/2}{sup o} transition at 834.724 nm in XeII. No significant deviation from the thermal velocity is observed for XeI. Two most probable ion velocities are registered at a given position with respect to the thruster axis, which are mainly attributed to different areas of creation of ions inside the acceleration channel. The spatial resolution of the set-up is limited by the laser beam size (radius of the order of 0.5 mm) and the fluorescence collection optics, which have a view spot diameter of 8 mm.

  20. Fact #624: May 24, 2010 Corporate Average Fuel Economy Standards, Model Years 2012-2016

    Broader source: Energy.gov [DOE]

    The final rule for the Corporate Average Fuel Economy (CAFE) Standards was published in March 2010. Under this rule, each light vehicle model produced for sale in the United States will have a fuel...

  1. Spacetime Average Density (SAD) cosmological measures

    SciTech Connect (OSTI)

    Page, Don N.

    2014-11-01

    The measure problem of cosmology is how to obtain normalized probabilities of observations from the quantum state of the universe. This is particularly a problem when eternal inflation leads to a universe of unbounded size so that there are apparently infinitely many realizations or occurrences of observations of each of many different kinds or types, making the ratios ambiguous. There is also the danger of domination by Boltzmann Brains. Here two new Spacetime Average Density (SAD) measures are proposed, Maximal Average Density (MAD) and Biased Average Density (BAD), for getting a finite number of observation occurrences by using properties of the Spacetime Average Density (SAD) of observation occurrences to restrict to finite regions of spacetimes that have a preferred beginning or bounce hypersurface. These measures avoid Boltzmann brain domination and appear to give results consistent with other observations that are problematic for other widely used measures, such as the observation of a positive cosmological constant.

  2. Luminous Efficacy Standards for General Purpose Lights

    Broader source: Energy.gov [DOE]

    *Efficacy refers to the overall energy efficiency of light and is measured in lumens (measure of light output) per watt (measure of power input). The efficacy of a typical incandescent light bulb...

  3. X-ray microscopy. Beyond ensemble averages

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ice, Gene E.; Budai, John D.

    2015-06-23

    This work exemplifies emerging tools to characterize local materials structure and dynamics, made possible by powerful X-ray synchrotron and transmission electron microscopy methods.

  4. Large area, surface discharge pumped, vacuum ultraviolet light source

    DOE Patents [OSTI]

    Sze, Robert C. (Santa Fe, NM); Quigley, Gerard P. (Los Alamos, NM)

    1996-01-01

    Large area, surface discharge pumped, vacuum ultraviolet (VUV) light source. A contamination-free VUV light source having a 225 cm.sup.2 emission area in the 240-340 nm region of the electromagnetic spectrum with an average output power in this band of about 2 J/cm.sup.2 at a wall-plug efficiency of approximately 5% is described. Only ceramics and metal parts are employed in this surface discharge source. Because of the contamination-free, high photon energy and flux, and short pulse characteristics of the source, it is suitable for semiconductor and flat panel display material processing.

  5. Large area, surface discharge pumped, vacuum ultraviolet light source

    DOE Patents [OSTI]

    Sze, R.C.; Quigley, G.P.

    1996-12-17

    Large area, surface discharge pumped, vacuum ultraviolet (VUV) light source is disclosed. A contamination-free VUV light source having a 225 cm{sup 2} emission area in the 240-340 nm region of the electromagnetic spectrum with an average output power in this band of about 2 J/cm{sup 2} at a wall-plug efficiency of approximately 5% is described. Only ceramics and metal parts are employed in this surface discharge source. Because of the contamination-free, high photon energy and flux, and short pulse characteristics of the source, it is suitable for semiconductor and flat panel display material processing. 3 figs.

  6. Polarized electron beams at milliampere average current

    SciTech Connect (OSTI)

    Poelker, Matthew

    2013-11-01

    This contribution describes some of the challenges associated with developing a polarized electron source capable of uninterrupted days-long operation at milliAmpere average beam current with polarization greater than 80%. Challenges will be presented in the context of assessing the required level of extrapolation beyond the performance of today's CEBAF polarized source operating at ~ 200 uA average current. Estimates of performance at higher current will be based on hours-long demonstrations at 1 and 4 mA. Particular attention will be paid to beam-related lifetime-limiting mechanisms, and strategies to construct a photogun that operate reliably at bias voltage > 350kV.

  7. Advanced Light Source

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

    Light Source - 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

  8. light-emitting diode

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

    light-emitting diode - 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

  9. Lighting Developments to 2030

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

    Lighting Developments to 2030 - 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

  10. White Light Creation Architectures

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

    Light Creation Architectures - 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

  11. Projection screen having reduced ambient light scattering

    DOE Patents [OSTI]

    Sweatt, William C. (Albuquerque, NM)

    2010-05-11

    An apparatus and method for improving the contrast between incident projected light and ambient light reflected from a projection screen are described. The efficiency of the projection screen for reflection of the projected light remains high, while permitting the projection screen to be utilized in a brightly lighted room. Light power requirements from the projection system utilized may be reduced.

  12. Commercial Lighting

    Broader source: Energy.gov [DOE]

    Commercial lighting accounts for more than 20 percent of total commercial building energy use. The Energy Department works to reduce lighting energy use through research and deployment.

  13. Average and effective Q-values for fission product average (n,2n) and

    Office of Scientific and Technical Information (OSTI)

    (n,3n) reaction cross sections (Technical Report) | SciTech Connect Technical Report: Average and effective Q-values for fission product average (n,2n) and (n,3n) reaction cross sections Citation Details In-Document Search Title: Average and effective Q-values for fission product average (n,2n) and (n,3n) reaction cross sections Authors: Kawano, Toshihiko [1] + Show Author Affiliations Los Alamos National Laboratory (LANL), Los Alamos, NM (United States) Publication Date: 2015-10-01 OSTI

  14. Radiation beam calorimetric power measurement system

    DOE Patents [OSTI]

    Baker, John (Livermore, CA); Collins, Leland F. (Pleasanton, CA); Kuklo, Thomas C. (Ripon, CA); Micali, James V. (Dublin, CA)

    1992-01-01

    A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.

  15. Fluorescent Lighting Basics | Department of Energy

    Energy Savers [EERE]

    Fluorescent Lighting Basics Fluorescent Lighting Basics October 17, 2013 - 5:39pm Addthis Light from a fluorescent lamp is first created by an electric current conducted through an inert gas producing ultraviolet light that is invisible to the human eye. The ultraviolet light in turn interacts with special blends of phosphors coating the interior surface of the fluorescent lamp tube that efficiently converts the invisible light into useful white light. Fluorescent lamps require a special power

  16. Table 1. Real Average Transportation and Delivered Costs of Coal...

    U.S. Energy Information Administration (EIA) Indexed Site

    Real Average Transportation and Delivered Costs of Coal, By Year and Primary Transport Mode" "Year","Average Transportation Cost of Coal (Dollars per Ton)","Average Delivered Cost...

  17. Fact #693: September 19, 2011 Average Vehicle Footprint for Cars...

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

    the average track width of the vehicle. The upcoming Corporate Average Fuel Economy (CAFE) Standards have fuel economy targets based on the vehicle footprint. The average...

  18. (Lighting and) Solid-State Lighting: Science, Technology, Economic

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

    Perspectives Lighting and) Solid-State Lighting: Science, Technology, Economic Perspectives - 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

  19. Energy Recovery Linacs for Light Source Applications

    SciTech Connect (OSTI)

    George Neil

    2011-04-01

    Energy Recovery Linacs are being considered for applications in present and future light sources. ERLs take advantage of the continuous operation of superconducting rf cavities to accelerate high average current beams with low losses. The electrons can be directed through bends, undulators, and wigglers for high brightness x ray production. They are then decelerated to low energy, recovering power so as to minimize the required rf drive and electrical draw. When this approach is coupled with advanced continuous wave injectors, very high power, ultra-short electron pulse trains of very high brightness can be achieved. This paper will review the status of worldwide programs and discuss the technology challenges to provide such beams for photon production.

  20. Pacific Power- wattsmart Business

    Broader source: Energy.gov [DOE]

    Pacific Power's wattsmart Business Program includes incentives and technical assistance for lighting, HVAC and other equipment upgrades that increase energy efficiency and exceed code requirements...

  1. White light velocity interferometer

    DOE Patents [OSTI]

    Erskine, David J. (Oakland, CA)

    1999-01-01

    The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s.

  2. White light velocity interferometer

    DOE Patents [OSTI]

    Erskine, David J. (Oakland, CA)

    1997-01-01

    The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s.

  3. White light velocity interferometer

    DOE Patents [OSTI]

    Erskine, D.J.

    1997-06-24

    The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s. 41 figs.

  4. White light velocity interferometer

    DOE Patents [OSTI]

    Erskine, D.J.

    1999-06-08

    The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s. 41 figs.

  5. Mid America Advanced Power Solutions | Open Energy Information

    Open Energy Info (EERE)

    MAAPS specializes in solar electric (PV), solar thermal, solar water heating, wind power, hydrogen power, efficiency lighting, and induction lighting products. These products are...

  6. NBP RFI: Communications Requirements- Comments of Meeker Cooperative Light

    Office of Environmental Management (EM)

    and Power- Minnesota | Department of Energy Meeker Cooperative Light and Power- Minnesota NBP RFI: Communications Requirements- Comments of Meeker Cooperative Light and Power- Minnesota Comments of Meeker Cooperative Light and Power- Minnesota on Implementing the National Broadband Plan by Studying the Communications Requirements of Electric Utilities to Inform Federal Smart Grid Policy PDF icon NBP RFI: Communications Requirements- Comments of Meeker Cooperative Light and Power- Minnesota

  7. Fact #794: August 26, 2013 How Much Does an Average Vehicle Owner Pay in

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

    Fuel Taxes Each Year? | Department of Energy 4: August 26, 2013 How Much Does an Average Vehicle Owner Pay in Fuel Taxes Each Year? Fact #794: August 26, 2013 How Much Does an Average Vehicle Owner Pay in Fuel Taxes Each Year? According to the Federal Highway Administration, the average fuel economy for all light vehicles on the road today is 21.4 miles per gallon (mpg). A person owning a gasoline vehicle with that fuel efficiency pays between $137 and $296 in fuel taxes each year, depending

  8. Northeast Energy Efficiency Partnerships: Advanced Lighting Controls |

    Energy Savers [EERE]

    Department of Energy Northeast Energy Efficiency Partnerships: Advanced Lighting Controls Northeast Energy Efficiency Partnerships: Advanced Lighting Controls Credit: Northeast Energy Efficiency Partnerships Credit: Northeast Energy Efficiency Partnerships Lead Performer: Northeast Energy Efficiency Partnerships, Lexington, MA Partners: Burlington Electric Department, Cape Light Compact, Connecticut Light and Power, Efficiency Vermont, National Grid, NSTAR Electric and Gas, NYSERDA, PSEG -

  9. Hybrid Solar Lighting Provides Energy Savings and Reduces Waste Heat

    SciTech Connect (OSTI)

    Lapsa, Melissa Voss; Maxey, L Curt; Earl, Dennis Duncan; Beshears, David L; Ward, Christina D; Parks, James Edgar

    2006-01-01

    ABSTRACT Artificial lighting is the largest component of electricity use in commercial U.S. buildings. Hybrid solar lighting (HSL) provides an exciting new means of reducing energy consumption while also delivering significant ancillary benefits associated with natural lighting in buildings. As more than half of all federal facilities are in the Sunbelt region (defined as having an average direct solar radiation of greater than 4 kWh/m2/day) and as more than half of all square footage available in federal buildings is also in the Sunbelt, HSL is an excellent technology fit for federal facilities. The HSL technology uses a rooftop, 4-ft-wide dish and secondary mirror that track the sun throughout the day (Fig. 1). The collector system focuses the sunlight onto 127 optical fibers. The fibers serve as flexible light pipes and are connected to hybrid light fixtures that have special diffusion rods that spread out the light in all directions. One collector powers about eight hybrid light fixtures-which can illuminate about 1,000 square feet. The system tracks at 0.1 accuracy, required by the two-mirror geometry to keep the focused beam on the fiber bundle. When sunlight is plentiful, the optical fibers in the luminaires provide all or most of the light needed in an area. During times of little or no sunlight, a sensor controls the intensity of the artificial lamps to maintain a desired illumination level. Unlike conventional electric lamps, the natural light produces little to no waste heat and is cool to the touch. This is because the system's solar collector removes the infrared light-the part of the spectrum that generates a lot of the heat in conventional bulbs-from the sunlight.

  10. Powerful glow discharge excilamp

    DOE Patents [OSTI]

    Tarasenko, Victor F.; Panchenko, Aleksey N.; Skakun, Victor S.; Sosnin, Edward A.; Wang, Francis T.; Myers, Booth R.; Adamson, Martyn G.

    2002-01-01

    A powerful glow discharge lamp comprising two coaxial tubes, the outer tube being optically transparent, with a cathode and anode placed at opposite ends of the tubes, the space between the tubes being filled with working gas. The electrodes are made as cylindrical tumblers placed in line to one other in such a way that one end of the cathode is inserted into the inner tube, one end of the anode coaxially covers the end of the outer tube, the inner tube penetrating and extending through the anode. The increased electrodes' surface area increases glow discharge electron current and, correspondingly, average radiation power of discharge plasma. The inner tube contains at least one cooling liquid tube placed along the axis of the inner tube along the entire lamp length to provide cathode cooling. The anode has a circumferential heat extracting radiator which removes heat from the anode. The invention is related to lighting engineering and can be applied for realization of photostimulated processes under the action of powerful radiation in required spectral range.

  11. Fact #851 December 15, 2014 The Average Number of Gears used...

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

    Average Number of Gears in New Cars and Light Trucks Model Year Gears 1980 3.5 1981 3.5 1982 3.6 1983 3.7 1984 3.7 1985 3.8 1986 3.8 1987 3.9 1988 3.9 1989 3.9 1990 4.0 1991 4.0 ...

  12. Annual average efficiency of a solar thermochemical reactor....

    Office of Scientific and Technical Information (OSTI)

    Annual average efficiency of a solar thermochemical reactor. Citation Details In-Document Search Title: Annual average efficiency of a solar thermochemical reactor. Abstract not ...

  13. High Average Brightness Photocathode Development for FEL Applications...

    Office of Scientific and Technical Information (OSTI)

    Conference: High Average Brightness Photocathode Development for FEL Applications Citation Details In-Document Search Title: High Average Brightness Photocathode Development for...

  14. Light Water Reactor Sustainability (LWRS) Program Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants

    SciTech Connect (OSTI)

    Simmons, Kevin L.; Ramuhalli, Pradeep; Brenchley, David L.; Coble, Jamie B.; Hashemian, Hash; Konnik, Robert; Ray, Sheila

    2012-09-14

    The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), NDE instrumentation development, universities, commercial NDE services and cable manufacturers, and Electric Power Research Institute (EPRI). The motivation for the R&D roadmap comes from the need to address the aging management of in-containment cables at nuclear power plants (NPPs).

  15. Light Source

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

    a Light Source Data and Analysis Framework at NERSC Jack Deslippe, Shane Canon, Eli Dart, Abdelilah Essiari, Alexander Hexemer, Dula Parkinson, Simon Patton, Craig Tull + Many More The ALS Data Needs September 21, 2010 - NIST (MD) Light source data volumes are growing many times faster than Moore's law. ● Light source luminosity ● Detector resolution & rep-rates ● Sample automation BES user facilities serve 10,000 scientists and engineers every year. Mostly composed of many small

  16. How Do You Light Your Home Efficiently? | Department of Energy

    Energy Savers [EERE]

    Light Your Home Efficiently? How Do You Light Your Home Efficiently? July 22, 2009 - 4:30pm Addthis An average household dedicates 11% of its energy budget to lighting. Installing efficient lighting technologies, using task lighting, flipping the switch, and taking advantage of natural daylight can all help you save on your lighting costs. How do you light your home efficiently? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy

  17. Cerenkov Light

    ScienceCinema (OSTI)

    Slifer, Karl

    2014-05-22

    The bright blue glow from nuclear reactors is Cerenkov light. Karl Slifer describes how nuclear physicists can use this phenomenon to study the nucleus of the atom.

  18. Lighting Renovations

    Broader source: Energy.gov [DOE]

    When undertaking a lighting renovation in a Federal building, daylighting is the primary renewable energy opportunity. Photovoltaics (PV) also present an excellent opportunity. While this guide...

  19. Residential Lighting

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

    & Events Expand News & Events Skip navigation links Residential Residential Lighting Energy Star Appliances Consumer Electronics Heat Pump Water Heaters Electric Storage Water...

  20. Cerenkov Light

    SciTech Connect (OSTI)

    Slifer, Karl

    2013-06-13

    The bright blue glow from nuclear reactors is Cerenkov light. Karl Slifer describes how nuclear physicists can use this phenomenon to study the nucleus of the atom.

  1. Analysis of Corporate Average Fuel Economy (CAFE) Standards for Light Trucks and Increased Alternative Fuel Use

    Reports and Publications (EIA)

    2002-01-01

    Sen. Frank Murkowski, the Ranking Minority Member of the Senate Committee on Energy and Natural Resources requested an analysis of selected portions of Senate Bill 1766 (S. 1766, the Energy Policy Act of 2002), House Resolution 4 (the Securing America's Future Energy Act of 2001) and Senate Bill 517 (S. 517, the Energy Policy Act of 2002). In response, the Energy Information Administration (EIA) has prepared a series of analyses showing the impacts of each of the selected provisions of the bills on energy supply, demand, and prices, macroeconomic variables where feasible, import dependence, and emissions.

  2. LightManufacturing | Open Energy Information

    Open Energy Info (EERE)

    greenhouse gas emissions resulting from rotational molding. 6 Unlike concentrated solar power firms which focus on utility-scale electric production 7 , LightManufacturing...

  3. Lighting Science Group | Open Energy Information

    Open Energy Info (EERE)

    Science Group Jump to: navigation, search Name: Lighting Science Group Place: Dallas, Texas Zip: 75201 Product: LED design company, with multiple patents pending in power...

  4. Flathead Electric Cooperative- Commercial Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    Flathead Electric Cooperative, in conjunction with Bonneville Power Administration, encourages energy efficiency in the commercial sector by providing a commercial lighting retro-fit rebate program...

  5. 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.

  6. Light Water Reactor Sustainability (LWRS) Program Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants

    SciTech Connect (OSTI)

    Simmons, K.L.; Ramuhali, P.; Brenchley, D.L.; Coble, J.B.; Hashemian, H.M.; Konnick, R.; Ray, S.

    2012-09-01

    Executive Summary [partial] The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. A workshop was held to gather subject matter experts to develop the NDE R&D Roadmap for Cables. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, and NDE instrumentation development from the U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), universities, commercial NDE service vendors and cable manufacturers, and the Electric Power Research Institute (EPRI).

  7. Sathian Sun Power Systems | Open Energy Information

    Open Energy Info (EERE)

    Sathian Sun Power Systems Jump to: navigation, search Name: Sathian Sun Power Systems Place: Salem, Andhra Pradesh, India Sector: Solar Product: Manufacturer of solar street lights...

  8. Significant issues and changes for ANSI/ASME OM-1 1981, part 1, ASME OMc code-1994, and ASME OM Code-1995, Appendix I, inservice testing of pressure relief devices in light water reactor power plants

    SciTech Connect (OSTI)

    Seniuk, P.J.

    1996-12-01

    This paper identifies significant changes to the ANSI/ASME OM-1 1981, Part 1, and ASME Omc Code-1994 and ASME OM Code-1995, Appendix I, {open_quotes}Inservice Testing of Pressure Relief Devices in Light-Water Reactor Power Plants{close_quotes}. The paper describes changes to different Code editions and presents insights into the direction of the code committee and selected topics to be considered by the ASME O&M Working Group on pressure relief devices. These topics include scope issues, thermal relief valve issues, as-found and as-left set-pressure determinations, exclusions from testing, and cold setpoint bench testing. The purpose of this paper is to describe some significant issues being addressed by the O&M Working Group on Pressure Relief Devices (OM-1). The writer is currently the chair of OM-1 and the statements expressed herein represents his personal opinion.

  9. 1,"Elm Road Generating Station","Coal","Wisconsin Electric Power...

    U.S. Energy Information Administration (EIA) Indexed Site

    summer capacity (MW)" 1,"Elm Road Generating Station","Coal","Wisconsin Electric Power ... Electric Power Co",1190 4,"Columbia (WI)","Coal","Wisconsin Power & Light ...

  10. Fact #889: September 7, 2015 Average Diesel Price Lower than...

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

    9: September 7, 2015 Average Diesel Price Lower than Gasoline for the First Time in Six Years Fact 889: September 7, 2015 Average Diesel Price Lower than Gasoline for the First...

  11. Fact #889: September 7, 2015 Average Diesel Price Lower than...

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

    Fact 889: September 7, 2015 Average Diesel Price Lower than Gasoline for the First Time in Six Years - Dataset Excel file and dataset for Average Diesel Price Lower than Gasoline ...

  12. Fact #835: August 25, 2014 Average Annual Gasoline Pump Price...

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

    Fact 835: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013 - Dataset Excel file with dataset for Fact 835: Average Annual Gasoline Pump Price, 1929-2013 File ...

  13. Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump...

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

    Fact 915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 - Dataset Excel file and dataset for Average Historical Annual Gasoline Pump Price, 1929-2015 File ...

  14. Energy-efficient lighting system for television

    DOE Patents [OSTI]

    Cawthorne, Duane C.

    1987-07-21

    A light control system for a television camera comprises an artificial light control system which is cooperative with an iris control system. This artificial light control system adjusts the power to lamps illuminating the camera viewing area to provide only sufficient artificial illumination necessary to provide a sufficient video signal when the camera iris is substantially open.

  15. 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...

  16. Automatic Mechetronic Wheel Light Device

    DOE Patents [OSTI]

    Khan, Mohammed John Fitzgerald

    2004-09-14

    A wheel lighting device for illuminating a wheel of a vehicle to increase safety and enhance aesthetics. The device produces the appearance of a "ring of light" on a vehicle's wheels as the vehicle moves. The "ring of light" can automatically change in color and/or brightness according to a vehicle's speed, acceleration, jerk, selection of transmission gears, and/or engine speed. The device provides auxiliary indicator lights by producing light in conjunction with a vehicle's turn signals, hazard lights, alarm systems, and etc. The device comprises a combination of mechanical and electronic components and can be placed on the outer or inner surface of a wheel or made integral to a wheel or wheel cover. The device can be configured for all vehicle types, and is electrically powered by a vehicle's electrical system and/or battery.

  17. Light's Darkness

    ScienceCinema (OSTI)

    Padgett, Miles [University of Glasgow, Glasgow, Scotland

    2010-01-08

    Optical vortices and orbital angular momentum are currently topical subjects in the optics literature. Although seemingly esoteric, they are, in fact, the generic state of light and arise whenever three or more plane waves interfere. To be observed by eye the light must be monochromatic. Laser speckle is one such example, where the optical energy circulates around each black spot, giving a local orbital angular momentum. This talk with report three on-going studies. First, when considering a volume of interfering waves, the laser specs map out threads of complete darkness embedded in the light. Do these threads form loops? Links? Or even knots? Second, when looking through a rapidly spinning window, the image of the world on the other side is rotated: true or false? Finally, the entanglement of orbital angular momentum states means measuring how the angular position of one photons sets the angular momentum of another: is this an angular version of the EPR (Einstein, Podolsky, and Rosen) paradox?

  18. National Lighting Energy Consumption

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

    Lighting Energy National Lighting Energy Consumption Consumption 390 Billion kWh used for lighting in all 390 Billion kWh used for lighting in all commercial buildings in commercial buildings in 2001 2001 LED (<.1% ) Incandescent 40% HID 22% Fluorescent 38% Lighting Energy Consumption by Lighting Energy Consumption by Breakdown of Lighting Energy Breakdown of Lighting Energy Major Sector and Light Source Type Major Sector and Light Source Type Source: Navigant Consulting, Inc., U.S. Lighting

  19. Lighting system with thermal management system

    DOE Patents [OSTI]

    Arik, Mehmet; Weaver, Stanton Earl; Stecher, Thomas Elliot; Seeley, Charles Erklin; Kuenzler, Glenn Howard; Wolfe, Jr., Charles Franklin; Utturkar, Yogen Vishwas; Sharma, Rajdeep; Prabhakaran, Satish; Icoz, Tunc

    2015-08-25

    Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system.

  20. Lighting system with thermal management system

    DOE Patents [OSTI]

    Arik, Mehmet; Weaver, Stanton Earl; Stecher, Thomas Elliot; Seeley, Charles Erklin; Kuenzler, Glenn Howard; Wolfe, Jr., Charles Franklin; Utturkar, Yogen Vishwas; Sharma, Rajdeep; Prabhakaran, Satish; Icoz, Tunc

    2015-02-24

    Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system.

  1. Lighting system with thermal management system

    DOE Patents [OSTI]

    Arik, Mehmet; Weaver, Stanton; Stecher, Thomas; Seeley, Charles; Kuenzler, Glenn; Wolfe, Jr., Charles; Utturkar, Yogen; Sharma, Rajdeep; Prabhakaran, Satish; Icoz, Tunc

    2013-05-07

    Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system.

  2. 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.

  3. U.S. Oxygenated, Average Refiner Gasoline Prices

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

    - - - - - - 1994-2014 Through Retail Outlets 1994-2006 Sales for Resale, Average - - - - - - 1994-2014 DTW 1994-2006 Rack 1994-2006 Bulk 1994-2006

  4. "Table 2. Real Average Annual Coal Transportation Costs, By Primary...

    U.S. Energy Information Administration (EIA) Indexed Site

    Real Average Annual Coal Transportation Costs, By Primary Transport Mode and Supply Region" "(2013 dollars per ton)" "Coal Supply Region",2008,2009,2010,2011,2012,2013 "Railroad"...

  5. Turning Bayesian model averaging into Bayesian model combination...

    Office of Scientific and Technical Information (OSTI)

    Turning Bayesian model averaging into Bayesian model combination Authors: Carroll, James 1 ; Monteith, Kristine 2 ; Seppi, Kevin 2 ; Martinez, Tony 2 + Show Author...

  6. High Average Brightness Photocathode Development for FEL Applications...

    Office of Scientific and Technical Information (OSTI)

    High Average Brightness Photocathode Development for FEL Applications Citation Details ... OFFICE OF SCIENCE (SC) Country of Publication: United States Language: English Subject: 46

  7. Electric Sales, Revenue, and Average Price 2011 - Energy Information...

    U.S. Energy Information Administration (EIA) Indexed Site

    Alphabetical Frequency Tag Cloud See All Electricity Reports Electric Sales, Revenue, and Average Price With Data for 2014 | Release Date: October 21, 2015 | Next Release Date: ...

  8. Light Show

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

    9 Lightning - Nature's Light Show Lightning provides one of nature's most spectacular displays of energy. Though fascinating to observe, lightning can be dangerous and deadly. Protecting ARM instruments from lightning damage is vital. Putting equipment worth millions of dollars into open fields (Photo: NOAA) ARM Facilities Newsletter is published by Argonne National Laboratory, a multiprogram laboratory operated by The University of Chicago under contract W-31-109-Eng-38 with the U.S. Department

  9. Florida Power and Light- Solar Rebate Program

    Broader source: Energy.gov [DOE]

    Note: This program will not be offered after 2015. More information is available on FPL's solar rebate web site.

  10. Indianapolis Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    35,701.307 540,706.51 4,687 87,281.074 1,189,623.454 469,533 2009-01 44,837.244 651,666.824 417,167 18,279.461 219,886.183 47,631 36,800.831 581,785.419 4,671 99,917.536...

  11. Whitefield Power Light | Open Energy Information

    Open Energy Info (EERE)

    Whitefield, New Hampshire Sector: Biomass Product: Developer of biomass projects using wood chips as feedstock. Coordinates: 35.253, -95.237229 Show Map Loading map......

  12. Powering your car with sun light

    SciTech Connect (OSTI)

    Cosgrove, Daniel; Brown, Nicole; Kiemle, Sarah

    2013-07-18

    Representing the Center for Lignocellulose Structure and Formation (CLSF), this document is one of the entries in the Ten Hundred and One Word Challenge and was awarded "Overall Winner." As part of the challenge, the 46 Energy Frontier Research Centers were invited to represent their science in images, cartoons, photos, words and original paintings, but any descriptions or words could only use the 1000 most commonly used words in the English language, with the addition of one word important to each of the EFRCs and the mission of DOE: energy. The mission of the CLSF is to dramatically increase our fundamental knowledge of the formation and physical interactions of bio-polymer networks in plant cell walls to provide a basis for improved methods for converting biomass into fuels.

  13. Indianapolis Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    EIA Form EIA-861 Final Data File for 2010 - File1a1 Energy Information Administration Form 8262 SGIC3 EIA Form 861 Data Utility Id 9273 Utility Location Yes...

  14. Wisconsin Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    EIA Form EIA-861 Final Data File for 2010 - File1a1 Energy Information Administration Form 8262 SGIC3 EIA Form 861 Data Utility Id 20856 Utility Location Yes...

  15. Dayton Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    REV (THOUSAND ) TOT SALES (MWH) TOT CONS 2009-03 42,929 405,917 457,328 32,828 369,986 56,335 12,936 163,248 1,748 38 375 1 88,731 939,526 515,412 2009-02 50,501 495,479 457,129...

  16. Garland Power & Light- Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Residential customers also qualify for rebates when they install high efficiency window air conditioning units with an ENERGY STAR Rating or make weatherization improvements to already existing...

  17. Clyde Light & Power | Open Energy Information

    Open Energy Info (EERE)

    861 Data Utility Id 3824 Utility Location Yes Ownership M NERC Location RFC NERC RFC Yes RTO PJM Yes Activity Transmission Yes Activity Buying Transmission Yes Activity...

  18. Dahlberg Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    43 1,288.039 11,031.527 11,238 2008-12 746.233 6,348.122 10,078 187.865 1,609.914 1,123 132 1,294.5 42 1,066.098 9,252.536 11,243 2008-11 562.836 4,646.062 10,072 166.156...

  19. Connecticut Light & Power Co | Open Energy Information

    Open Energy Info (EERE)

    56,845.785 316,477.296 100,488 5,482.981 32,672.55 3,389 219,627.211 1,137,141.772 1,132,833 2009-02 173,849.326 881,765.122 1,023,687 61,841.633 334,033.47 105,212 6,602.679...

  20. Florida Power & Light Co. | Open Energy Information

    Open Energy Info (EERE)

    9,066,193 4,501,914 2008-09 690,529 5,630,168 3,982,793 460,704 4,300,946 507,520 27,607 300,915 12,797 735 6,863 23 1,179,575 10,238,892 4,503,133 2008-08 647,601 5,329,594...

  1. Connecticut Light & Power- Small ZREC Tariff

    Broader source: Energy.gov [DOE]

    In July 2011, Connecticut enacted legislation amending the state's Renewables Portfolio Standard and creating two new classes of renewable energy credits (RECs): Zero Emission Renewable Energy...

  2. Wisconsin Power & Light Co | Open Energy Information

    Open Energy Info (EERE)

    Yes Activity Distribution Yes Activity Buying Distribution Yes Activity Wholesale Marketing Yes Activity Retail Marketing Yes Activity Bundled Services Yes This article is a...

  3. LED intense headband light source for fingerprint analysis

    DOE Patents [OSTI]

    Villa-Aleman, Eliel

    2005-03-08

    A portable, lightweight and high-intensity light source for detecting and analyzing fingerprints during field investigation. On-site field analysis requires long hours of mobile analysis. In one embodiment, the present invention comprises a plurality of light emitting diodes; a power source; and a personal attachment means; wherein the light emitting diodes are powered by the power source, and wherein the power source and the light emitting diodes are attached to the personal attachment means to produce a personal light source for on-site analysis of latent fingerprints. The present invention is available for other applications as well.

  4. Lighting | Department of Energy

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

    Lighting Lighting When you're shopping for lightbulbs, compare lumens and use the Lighting Facts label to be sure you're getting the amount of light, or level of brightness, you want. You can save money and energy while lighting your home and still maintaining good light quantity and quality. Consider energy-efficient lighting options to use the same amount of light for less money. Learn strategies for comparing and buying lighting products and using them efficiently. Featured Lighting Choices

  5. Purchasing Energy-Efficient Light Bulbs | Department of Energy

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

    Products & Technologies » Energy-Efficient Products » Purchasing Energy-Efficient Light Bulbs Purchasing Energy-Efficient Light Bulbs Did you know? CFLs and LEDs last substantially longer than incandescent light bulbs, reducing labor costs of replacing light bulbs. Coal-burning power plants emit mercury into the environment; using ENERGY STAR light bulbs can reduce these emissions. The Federal Energy Management Program (FEMP) provides acquisition guidance for light bulbs, a product

  6. DOE Announces Webinars on the Distributed Wind Power Market,...

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

    Lighting Retrofits Financial Analysis Tool, and More DOE Announces Webinars on the Distributed Wind Power Market, Lighting Retrofits Financial Analysis Tool, and More August 16, ...

  7. HIGH AVERAGE CURRENT LOW EMITTANCE BEAM EMPLOYING CW NORMAL CONDUCTING GUN.

    SciTech Connect (OSTI)

    CHANG,X.; BEN-ZVI, I.; KEWISCH, J.; PAI, C.

    2007-06-25

    CW normal conducting guns usually do not achieve very high field gradient and waste much RF power at high field gradient compared to superconducting cavities. But they have less trapped modes and wakefields compared to the superconducting cavities due to their low Q. The external bucking coil can also be applied very close to the cathode to improve the beam quality. By using a low frequency gun with a recessed cathode and a carefully designed beam line we can get a high average current and a high quality beam with acceptable RF power loss on the cavity wall. This paper shows that the CW normal conducting gun can be a backup solution for those projects which need high peak and average current, low emittance electron beams such as the Relativistic Heavy Ion Collider (RHIC) e-cooling project and Energy Recovery Linac (Em) project.

  8. Reconstruction of ionization probabilities from spatially averaged data in N dimensions

    SciTech Connect (OSTI)

    Strohaber, J.; Kolomenskii, A. A.; Schuessler, H. A.

    2010-07-15

    We present an analytical inversion technique, which can be used to recover ionization probabilities from spatially averaged data in an N-dimensional detection scheme. The solution is given as a power series in intensity. For this reason, we call this technique a multiphoton expansion (MPE). The MPE formalism was verified with an exactly solvable inversion problem in two dimensions, and probabilities in the postsaturation region, where the intensity-selective scanning approach breaks down, were recovered. In three dimensions, ionization probabilities of Xe were successfully recovered with MPE from simulated (using the Ammosov-Delone-Krainov tunneling theory) ion yields. Finally, we tested our approach with intensity-resolved benzene-ion yields, which show a resonant multiphoton ionization process. By applying MPE to this data (which were artificially averaged), the resonant structure was recovered, which suggests that the resonance in benzene may have been observed in spatially averaged data taken elsewhere.

  9. Impacts of different data averaging times on statistical analysis of distributed domestic photovoltaic systems

    SciTech Connect (OSTI)

    Widen, Joakim; Waeckelgaard, Ewa; Paatero, Jukka; Lund, Peter

    2010-03-15

    The trend of increasing application of distributed generation with solar photovoltaics (PV-DG) suggests that a widespread integration in existing low-voltage (LV) grids is possible in the future. With massive integration in LV grids, a major concern is the possible negative impacts of excess power injection from on-site generation. For power-flow simulations of such grid impacts, an important consideration is the time resolution of demand and generation data. This paper investigates the impact of time averaging on high-resolution data series of domestic electricity demand and PV-DG output and on voltages in a simulated LV grid. Effects of 10-minutely and hourly averaging on descriptive statistics and duration curves were determined. Although time averaging has a considerable impact on statistical properties of the demand in individual households, the impact is smaller on aggregate demand, already smoothed from random coincidence, and on PV-DG output. Consequently, the statistical distribution of simulated grid voltages was also robust against time averaging. The overall judgement is that statistical investigation of voltage variations in the presence of PV-DG does not require higher resolution than hourly. (author)

  10. "2014 Average Monthly Bill- Industrial"

    U.S. Energy Information Administration (EIA) Indexed Site

    Industrial" "(Data from forms EIA-861- schedules 4A-D, EIA-861S and EIA-861U)" "State","Number of Customers","Average Monthly Consumption (kWh)","Average Price (cents/kWh)","Average Monthly Bill (Dollar and cents)" "New England",28017,56832.854,11.842263,6730.2959 "Connecticut",4648,63016.315,12.915601,8138.9361 "Maine",3023,92553.92,8.9475131,8281.2741

  11. "2014 Average Monthly Bill- Residential"

    U.S. Energy Information Administration (EIA) Indexed Site

    Residential" "(Data from forms EIA-861- schedules 4A-D, EIA-861S and EIA-861U)" "State","Number of Customers","Average Monthly Consumption (kWh)","Average Price (cents/kWh)","Average Monthly Bill (Dollar and cents)" "New England",6243013,630.1915,17.822291,112.31456 "Connecticut",1459239,729.69421,19.748254,144.10186 "Maine",706952,549.37782,15.272983,83.90638

  12. U.S. Refiner Sales to End Users (Average) Prices

    U.S. Energy Information Administration (EIA) Indexed Site

    Sales Type: Sales to End Users, Average Through Retail Outlets Sales for Resale, Average DTW Rack Bulk Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Formulation/ Grade Sales Type Jul-15 Aug-15 Sep-15 Oct-15 Nov-15 Dec-15 View History Conventional, Average 2.161 2.057 1.785 1.759 1.601 1.472 1994-2015 Conventional Regular 2.124 2.018 1.743 1.721 1.562 1.431 1994-2015 Conventional Midgrade 2.325 2.229 1.985 1.923

  13. Does anyone have access to 2012 average residential rates by...

    Open Energy Info (EERE)

    Does anyone have access to 2012 average residential rates by utility company? I'm seeing an inconsistency between the OpenEI website and EIA 861 data set. Home > Groups > Utility...

  14. Table 14b. Average Electricity Prices, Projected vs. Actual

    U.S. Energy Information Administration (EIA) Indexed Site

    b. Average Electricity Prices, Projected vs. Actual" "Projected Price in Nominal Dollars" " (nominal dollars, cents per kilowatt-hour)" ,1993,1994,1995,1996,1997,1998,1999,2000,200...

  15. Table 14b. Average Electricity Prices, Projected vs. Actual

    U.S. Energy Information Administration (EIA) Indexed Site

    b. Average Electricity Prices, Projected vs. Actual Projected Price in Nominal Dollars (nominal dollars, cents per kilowatt-hour) 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002...

  16. Pennsylvania Average Price of Natural Gas Delivered to Residential...

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

    67 15.82 17.83 18.62 18.32 NA 1989-2015 Commercial Average Price 10.73 11.25 12.09 11.21 11.10 NA...

  17. 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...

  18. Averaged null energy condition violation in a conformally flat spacetime

    SciTech Connect (OSTI)

    Urban, Douglas; Olum, Ken D.

    2010-01-15

    We show that the averaged null energy condition can be violated by a conformally coupled scalar field in a conformally flat spacetime in 3+1 dimensions. The violation is dependent on the quantum state and can be made as large as desired. It does not arise from the presence of anomalies, although anomalous violations are also possible. Since all geodesics in conformally flat spacetimes are achronal, the achronal averaged null energy condition is likewise violated.

  19. High Average Brightness Photocathode Development for FEL Applications

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect High Average Brightness Photocathode Development for FEL Applications Citation Details In-Document Search Title: High Average Brightness Photocathode Development for FEL Applications Authors: Rao T. ; Ben-Zvi I. ; Skarita, J. ; Wang, E. Publication Date: 2013-08-26 OSTI Identifier: 1095687 Report Number(s): BNL--101607-2013-CP KA-04 DOE Contract Number: DE-AC02-98CH10886 Resource Type: Conference Resource Relation: Conference: 35th International Free Electron

  20. Flavor Physics Data from the Heavy Flavor Averaging Group (HFAG)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Heavy Flavor Averaging Group (HFAG) was established at the May 2002 Flavor Physics and CP Violation Conference in Philadelphia, and continues the LEP Heavy Flavor Steering Group's tradition of providing regular updates to the world averages of heavy flavor quantities. Data are provided by six subgroups that each focus on a different set of heavy flavor measurements: B lifetimes and oscillation parameters, Semi-leptonic B decays, Rare B decays, Unitarity triangle parameters, B decays to charm final states, and Charm Physics.

  1. Strongly Coupled Data Assimilation Using Leading Averaged Coupled

    Office of Scientific and Technical Information (OSTI)

    Covariance (LACC). Part II: CGCM experiments (Journal Article) | SciTech Connect Strongly Coupled Data Assimilation Using Leading Averaged Coupled Covariance (LACC). Part II: CGCM experiments Citation Details In-Document Search Title: Strongly Coupled Data Assimilation Using Leading Averaged Coupled Covariance (LACC). Part II: CGCM experiments Authors: Liu, Feiyu ; Liu, Zhengyu ; Zhang, S. ; Liu, Y. ; Jacob, Robert L. Publication Date: 2015-11-01 OSTI Identifier: 1237902 DOE Contract Number:

  2. Development of a high average current polarized electron source with long cathode operational lifetime

    SciTech Connect (OSTI)

    C. K. Sinclair; P. A. Adderley; B. M. Dunham; J. C. Hansknecht; P. Hartmann; M. Poelker; J. S. Price; P. M. Rutt; W. J. Schneider; M. Steigerwald

    2007-02-01

    Substantially more than half of the electromagnetic nuclear physics experiments conducted at the Continuous Electron Beam Accelerator Facility of the Thomas Jefferson National Accelerator Facility (Jefferson Laboratory) require highly polarized electron beams, often at high average current. Spin-polarized electrons are produced by photoemission from various GaAs-based semiconductor photocathodes, using circularly polarized laser light with photon energy slightly larger than the semiconductor band gap. The photocathodes are prepared by activation of the clean semiconductor surface to negative electron affinity using cesium and oxidation. Historically, in many laboratories worldwide, these photocathodes have had short operational lifetimes at high average current, and have often deteriorated fairly quickly in ultrahigh vacuum even without electron beam delivery. At Jefferson Lab, we have developed a polarized electron source in which the photocathodes degrade exceptionally slowly without electron emission, and in which ion back bombardment is the predominant mechanism limiting the operational lifetime of the cathodes during electron emission. We have reproducibly obtained cathode 1/e dark lifetimes over two years, and 1/e charge density and charge lifetimes during electron beam delivery of over 2?105???C/cm2 and 200 C, respectively. This source is able to support uninterrupted high average current polarized beam delivery to three experimental halls simultaneously for many months at a time. Many of the techniques we report here are directly applicable to the development of GaAs photoemission electron guns to deliver high average current, high brightness unpolarized beams.

  3. Analysis of Wind Power Ramping Behavior in ERCOT

    SciTech Connect (OSTI)

    Wan, Y. H.

    2011-03-01

    This report analyzes the wind power ramping behavior using 10-minute and hourly average wind power data from ERCOT and presents statistical properties of the large ramp events.

  4. Future Lighting Systems: The Path to Optimized Energy Performance

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

    Pacific Northwest National Laboratory Future Lighting Systems: The Path to Optimized Energy Performance Lightfair May 5-7, 2015 2 SSL technology is re-defining the role of lighting devices * SSL is the most energy efficient, flexible, controllable lighting technology in history - Spectral power distribution, light output (e.g. luminous flux, intensity, distribution), color characteristics (e.g. CCT, CRI, Duv) - System architecture, partitioning, and power conversion * SSL is blurring the

  5. Loveland Water & Power - Commercial and Industrial Energy Efficiency...

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

    250 Office Lighting: 5 - 20 SensorsControls: 7 - 90 Summary Loveland Water & Power, in conjunction with the Platte River Power Authority provides businesses...

  6. Agua Caliente Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Caliente Solar Power Plant Facility Agua Caliente Solar Sector Solar Facility Type Photovoltaic Developer NextLight Renewable Power Location Yuma County, Arizona Coordinates...

  7. Dalian Sengu New Power Electronic Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    axis wind turbines, solar components, solar-wind complementary power supply system, LED lighting system. References: Dalian Sengu New Power Electronic Co Ltd1 This article...

  8. Revision of the Branch Technical Position on Concentration Averaging and Encapsulation - 12510

    SciTech Connect (OSTI)

    Heath, Maurice; Kennedy, James E.; Ridge, Christianne; Lowman, Donald [U.S. NRC, Washington, DC, 20555-0001 (United States); Cochran, John [Sandia National Laboratory (United States)

    2012-07-01

    The U.S. Nuclear Regulatory Commission (NRC) regulation governing low-level waste (LLW) disposal, 'Licensing Requirements for Land Disposal of Radioactive Waste', 10 CFR Part 61, establishes a waste classification system based on the concentration of specific radionuclides contained in the waste. The regulation also states, at 10 CFR 61.55(a)(8), that, 'the concentration of a radionuclide (in waste) may be averaged over the volume of the waste, or weight of the waste if the units are expressed as nanocuries per gram'. The NRC's Branch Technical Position on Concentration Averaging and Encapsulation provides guidance on averaging radionuclide concentrations in waste under 10 CFR 61.55(a)(8) when classifying waste for disposal. In 2007, the NRC staff proposed to revise the Branch Technical Position on Concentration Averaging and Encapsulation. The Branch Technical Position on Concentration Averaging and Encapsulation is an NRC guidance document for averaging and classifying wastes under 10 CFR 61. The Branch Technical Position on Concentration Averaging and Encapsulation is used by nuclear power plants (NPPs) licensees and sealed source users, among others. In addition, three of the four U.S. LLW disposal facility operators are required to honor the Branch Technical Position on Concentration Averaging and Encapsulation as a licensing condition. In 2010, the Commission directed the staff to develop guidance regarding large scale blending of similar homogenous waste types, as described in SECY-10-0043 as part of its Branch Technical Position on Concentration Averaging and Encapsulation revision. The Commission is improving the regulatory approach used in the Branch Technical Position on Concentration Averaging and Encapsulation by moving towards a making it more risk-informed and performance-based approach, which is more consistent with the agency's regulatory policies. Among the improvements to the Branch Technical Position on Concentration Averaging and Encapsulation are more risk-informed limits for the sizes of sealed sources for safe disposal. Using more realistic intruder exposure scenarios, the suggested limits for Class B and C waste disposal of sealed sources, particularly Cs-137 and Co-60, have been increased. These suggested changes, and others in the Branch Technical Position on Concentration Averaging and Encapsulation, if adopted by Agreement States, have the potential to eliminate numerous orphan sources (i.e., sources that currently have no disposal pathway) that are now being stored. Permanent disposal of these sources, rather than temporary storage, will help reduce safety and security risks. The revised Branch Technical Position on Concentration Averaging and Encapsulation has an alternative approach section which provides flexibility to generators and processors, while also ensuring that intruder protection will be maintained. Alternative approaches provide flexibility by allowing for consideration of likelihood of intrusion, the possibility of averaging over larger volumes and allowing for disposal of large activity sources. The revision has improved the organization of the Branch Technical Position on Concentration Averaging and Encapsulation, improved its clarity, better documented the bases for positions, and made the positions more risk informed while also maintaining protection for intruder as required by 10 CFR Part 61. (authors)

  9. Chapter 5: Lighting, HVAC, and Plumbing

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

    : Lighting, HVAC, and Plumbing High-Performance Engineering Design Lighting System Design Mechanical System Design Central Plant Systems Plumbing and Water Use Building Control Systems Electrical Power Systems Metering LANL | Chapter 5 High-Performance Engineering Design Lighting, HVAC, and Plumbing By now, the building envelope serves multiple roles. It protects the occupants from changing weather condi- tions and it plays a key part in meeting the occupants' comfort needs. The heating,

  10. 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

  11. The LIPSS search for light neutral bosons

    SciTech Connect (OSTI)

    Andrei Afanasev; Oliver K. Baker; Kevin Beard; George Biallas; James Boyce; Minarni Minarni; Roopchan Ramdon; Michelle D. Shinn; Penny Slocum

    2009-07-01

    An overview is presented of the LIPSS experimental search for very light neutral bosons using laser light from Jefferson Lab's Free Electron Laser. This facility provides very high power beams of photons over a large optical range, particularly at infrared wavelengths. Data has been collected in several experimental runs during the course of the past three years, most recently in the Fall of 2009.

  12. Lighting in Residential and Commercial Buildings (1993 and 1995...

    U.S. Energy Information Administration (EIA) Indexed Site

    Ballast Electronic ballast operates lights using electronic switching power supply circuits and operates at cooler temperatures, weighs less, and is quieter than the magnetic...

  13. Turning Bayesian model averaging into Bayesian model combination

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Turning Bayesian model averaging into Bayesian model combination Citation Details In-Document Search Title: Turning Bayesian model averaging into Bayesian model combination Authors: Carroll, James [1] ; Monteith, Kristine [2] ; Seppi, Kevin [2] ; Martinez, Tony [2] + Show Author Affiliations Los Alamos National Laboratory BYU Publication Date: 2011-07-28 OSTI Identifier: 1084524 Report Number(s): LA-UR-11-04419; LA-UR-11-4419 DOE Contract Number: AC52-06NA25396

  14. U.S. average gasoline price up slightly

    Gasoline and Diesel Fuel Update (EIA)

    U.S. average gasoline price up slightly The U.S. average retail price for regular gasoline rose slightly to $3.65 a gallon on Monday. That's up a tenth of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.89 a gallon, down 4.4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.34 a gallon, down 2.6 cents. Jonathan Cogan for EIA,

  15. Turning Bayesian model averaging into Bayesian model combination

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Turning Bayesian model averaging into Bayesian model combination Citation Details In-Document Search Title: Turning Bayesian model averaging into Bayesian model combination Authors: Carroll, James [1] ; Monteith, Kristine [2] ; Seppi, Kevin [2] ; Martinez, Tony [2] + Show Author Affiliations Los Alamos National Laboratory BYU Publication Date: 2011-07-28 OSTI Identifier: 1084524 Report Number(s): LA-UR-11-04419; LA-UR-11-4419 DOE Contract Number: AC52-06NA25396

  16. Broadband turbulent spectra in gamma-ray burst light curves

    SciTech Connect (OSTI)

    Van Putten, Maurice H. P. M.; Guidorzi, Cristiano; Frontera, Filippo

    2014-05-10

    Broadband power density spectra offer a window to understanding turbulent behavior in the emission mechanism and, at the highest frequencies, in the putative inner engines powering long gamma-ray bursts (GRBs). We describe a chirp search method alongside Fourier analysis for signal detection in the Poisson noise-dominated, 2 kHz sampled, BeppoSAX light curves. An efficient numerical implementation is described in O(Nnlog n) operations, where N is the number of chirp templates and n is the length of the light-curve time series, suited for embarrassingly parallel processing. For the detection of individual chirps over a 1 s duration, the method is one order of magnitude more sensitive in signal-to-noise ratio than Fourier analysis. The Fourier-chirp spectra of GRB 010408 and GRB 970816 show a continuation of the spectral slope with up to 1 kHz of turbulence identified in low-frequency Fourier analysis. The same continuation is observed in an average spectrum of 42 bright, long GRBs. An outlook on a similar analysis of upcoming gravitational wave data is included.

  17. Demonstration Assessment of Light Emitting Diode (LED) Walkway Lighting at the Federal Aviation Administration William J. Hughes Technical Center, in Atlantic City, New Jersey

    SciTech Connect (OSTI)

    Kinzey, Bruce R.; Myer, Michael

    2008-03-18

    This report documents the results of a collaborative project to demonstrate a solid state lighting (SSL) general illumination product in an outdoor area walkway application. In the project, six light-emitting diode (LED) luminaires were installed to replace six existing high pressure sodium (HPS) luminaires mounted on 14-foot poles on a set of exterior walkways and stairs at the Federal Aviation Administration (FAA) William J. Hughes Technical Center in Atlantic City, New Jersey, during December, 2007. The effort was a U.S. Department of Energy (DOE) SSL Technology Gateway Demonstration that involved a collaborative teaming agreement between DOE, FAA and Ruud Lighting (and their wholly owned division, Beta LED). Pre- and post-installation power and illumination measurements were taken and used in calculations of energy savings and related economic payback, while personnel impacted by the new lights were provided questionnaires to gauge their perceptions and feedback. The SSL product demonstrated energy savings of over 25% while maintaining illuminance levels and improving illuminance uniformity. PNNL's economic analysis yielded a variety of potential payback results depending on the assumptions used. In the best case, replacing HPS with the LED luminaire can yield a payback as low as 3 years. The new lamps were quite popular with the affected personnel, who gave the lighting an average score of 4.46 out of 5 for improvement.

  18. Parity-violating anomalies and the stationarity of stochastic averages

    SciTech Connect (OSTI)

    Reuter, M.

    1988-01-15

    Within the framework of stochastic quantization the parity-violating anomalies in odd space-time dimensions are derived from the asymptotic stationarity of the stochastic average of a certain fermion bilinear. Contrary to earlier attempts, this method yields the correct anomalies for both massive and massless fermions.

  19. Speckle averaging system for laser raster-scan image projection

    DOE Patents [OSTI]

    Tiszauer, Detlev H. (Tracy, CA); Hackel, Lloyd A. (Livermore, CA)

    1998-03-17

    The viewers' perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system that effectively presents a new speckle realization at each point on the viewing screen to each viewer for every scan across the field. The speckle averaging is accomplished without introduction of spurious imaging artifacts.

  20. Speckle averaging system for laser raster-scan image projection

    DOE Patents [OSTI]

    Tiszauer, D.H.; Hackel, L.A.

    1998-03-17

    The viewers` perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system that effectively presents a new speckle realization at each point on the viewing screen to each viewer for every scan across the field. The speckle averaging is accomplished without introduction of spurious imaging artifacts. 5 figs.

  1. Florida Average Price of Natural Gas Delivered to Residential and

    Gasoline and Diesel Fuel Update (EIA)

    Commercial Consumers by Local Distribution and Markete 4.58 24.59 24.41 23.37 21.56 19.15 1989-2015 Commercial Average Price 10.92 10.91 11.15 10.61 10.69 10.89

  2. Georgia Average Price of Natural Gas Delivered to Residential and

    Gasoline and Diesel Fuel Update (EIA)

    Commercial Consumers by Local Distribution and Markete 5.45 24.78 25.75 20.43 15.20 14.41 1989-2015 Commercial Average Price 9.08 9.07 9.38 8.65 9.72 7.80

  3. Virginia Average Price of Natural Gas Delivered to Residential and

    U.S. Energy Information Administration (EIA) Indexed Site

    Commercial Consumers by Local Distribution and Market 20.25 21.10 19.45 NA 11.72 12.09 1989-2015 Commercial Average Price 8.55 8.58 8.91 8.02 7.57 7.9

  4. Maryland Average Price of Natural Gas Delivered to Residential...

    Gasoline and Diesel Fuel Update (EIA)

    8.35 18.44 19.08 19.39 13.51 12.72 1989-2015 Commercial Average Price 11.74 10.98 11.61 11.11 9.98 9.56...

  5. Michigan Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    2.50 13.65 13.52 13.21 8.93 7.84 1989-2015 Commercial Average Price 8.91 9.31 9.17 9.05 7.46 6.75...

  6. New York Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    6.28 17.10 17.33 17.53 14.26 12.27 1989-2015 Commercial Average Price 6.84 6.08 5.75 5.99 6.27 6.3...

  7. Maryland Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    Local Distribution Companies 12.20 2006-2010 Marketers 13.51 2006-2010 Percent Sold by Local Distribution Companies 81.7 2006-2010 Commercial Average Price 9.87 10.29 10.00 10.06 ...

  8. Florida Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    Local Distribution Companies 17.85 2006-2010 Marketers 19.44 2006-2010 Percent Sold by Local Distribution Companies 97.9 2006-2010 Commercial Average Price 10.60 11.14 10.41 10.87 ...

  9. New Jersey Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    Local Distribution Companies 12.77 2006-2010 Marketers 14.87 2006-2010 Percent Sold by Local Distribution Companies 96.6 2006-2010 Commercial Average Price 10.11 9.51 8.50 9.55 ...

  10. Michigan Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    Commercial Average Price 8.95 9.14 8.35 7.82 8.28 7.49 1967-2015 Local Distribution Companies 10.00 2006-2010 Marketers 7.61 2006-2010 Percent Sold by Local Distribution Companies ...

  11. Virginia Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    Local Distribution Companies 12.64 2006-2010 Marketers 13.64 2006-2010 Percent Sold by Local Distribution Companies 90.9 2006-2010 Commercial Average Price 9.55 9.69 8.77 8.83 9.17 ...

  12. Pennsylvania Average Price of Natural Gas Delivered to Residential...

    U.S. Energy Information Administration (EIA) Indexed Site

    Local Distribution Companies 12.82 2006-2010 Marketers 13.78 2006-2010 Percent Sold by Local Distribution Companies 91.2 2006-2010 Commercial Average Price 10.47 10.42 10.24 10.11 ...

  13. District of Columbia Average Price of Natural Gas Delivered to...

    U.S. Energy Information Administration (EIA) Indexed Site

    Average Price 12.26 12.24 11.19 11.64 12.18 11.55 1980-2015 Local Distribution Companies 12.99 2006-2010 Marketers 12.12 2006-2010 Percent Sold by Local Distribution Companies 16.4 ...

  14. High Efficiency, Illumination Quality OLEDs for Lighting

    SciTech Connect (OSTI)

    Joseph Shiang; James Cella; Kelly Chichak; Anil Duggal; Kevin Janora; Chris Heller; Gautam Parthasarathy; Jeffery Youmans; Joseph Shiang

    2008-03-31

    The goal of the program was to demonstrate a 45 lumen per watt white light device based upon the use of multiple emission colors through the use of solution processing. This performance level is a dramatic extension of the team's previous 15 LPW large area illumination device. The fundamental material system was based upon commercial polymer materials. The team was largely able to achieve these goals, and was able to deliver to DOE a 90 lumen illumination source that had an average performance of 34 LPW a 1000 cd/m{sup 2} with peak performances near 40LPW. The average color temperature is 3200K and the calculated CRI 85. The device operated at a brightness of approximately 1000cd/m{sup 2}. The use of multiple emission colors particularly red and blue, provided additional degrees of design flexibility in achieving white light, but also required the use of a multilayered structure to separate the different recombination zones and prevent interconversion of blue emission to red emission. The use of commercial materials had the advantage that improvements by the chemical manufacturers in charge transport efficiency, operating life and material purity could be rapidly incorporated without the expenditure of additional effort. The program was designed to take maximum advantage of the known characteristics of these material and proceeded in seven steps. (1) Identify the most promising materials, (2) assemble them into multi-layer structures to control excitation and transport within the OLED, (3) identify materials development needs that would optimize performance within multilayer structures, (4) build a prototype that demonstrates the potential entitlement of the novel multilayer OLED architecture (5) integrate all of the developments to find the single best materials set to implement the novel multilayer architecture, (6) further optimize the best materials set, (7) make a large area high illumination quality white OLED. A photo of the final deliverable is shown. In 2003, a large area, OLED based illumination source was demonstrated that could provide light with a quality, quantity, and efficiency on par with what can be achieved with traditional light sources. The demonstration source was made by tiling together 16 separate 6-inch x 6-inch blue-emitting OLEDs. The efficiency, total lumen output, and lifetime of the OLED based illumination source were the same as what would be achieved with an 80 watt incandescent bulb. The devices had an average efficacy of 15 LPW and used solution-processed OLEDs. The individual 6-inch x 6-inch devices incorporated three technology strategies developed specifically for OLED lighting -- downconversion for white light generation, scattering for outcoupling efficiency enhancement, and a scalable monolithic series architecture to enable large area devices. The downconversion approach consists of optically coupling a blue-emitting OLED to a set of luminescent layers. The layers are chosen to absorb the blue OLED emission and then luminescence with high efficiency at longer wavelengths. The composition and number of layers are chosen so that the unabsorbed blue emission and the longer wavelength re-emission combine to make white light. A downconversion approach has the advantage of allowing a wide variety of colors to be made from a limited set of blue emitters. In addition, one does not have to carefully tune the emission wavelength of the individual electro-luminescent species within the OLED device in order to achieve white light. The downconversion architecture used to develop the 15LPW large area light source consisted of a polymer-based blue-emitting OLED and three downconversion layers. Two of the layers utilized perylene based dyes from BASF AG of Germany with high quantum efficiency (>98%) and one of the layers consisted of inorganic phosphor particles (Y(Gd)AG:Ce) with a quantum efficiency of {approx}85%. By independently varying the optical density of the downconversion layers, the overall emission spectrum could be adjusted to maximize performance for lighting (e.g. blackbody temperature, color rendering and luminous efficacy) while keeping the properties of the underlying blue OLED constant. The success of the downconversion approach is ultimately based upon the ability to produce efficient emission in the blue. Table 1 presents a comparison of the current performance of the conjugated polymer, dye-doped polymer, and dendrimer approaches to making a solution-processed blue OLED as 2006. Also given is the published state of the art performance of a vapor-deposited blue OLED. One can see that all the approaches to a blue OLED give approximately the same external quantum efficiency at 500 cd/m{sup 2}. However, due to its low operating voltage, the fluorescent conjugated polymer approach yields a superior power efficiency at the same brightness.

  15. Rocky Mountain Power- wattsmart Business Program

    Broader source: Energy.gov [DOE]

    Rocky Mountain Power's wattsmart Program includes incentives and technical assistance for lighting, HVAC and other equipment upgrades that increase energy efficiency in commercial and industrial...

  16. Rocky Mountain Power- wattsmart Business Program

    Broader source: Energy.gov [DOE]

    Rocky Mountain Power's wattsmart Business Program provides extensive incentives and for lighting, HVAC, food service, agricultural, and compressed air equipment. Full details are available on the...

  17. Southwestern Power Administration

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

    2015 Meeting 2014 Meeting 2013 Meeting 2012 Meeting 2011 Meeting 2010 Meeting 2009 Meeting 2008 Meeting 2007 Meeting 2006 Meeting Hydropower Meeting The Southwestern Regional Hydropower Council and Meeting are held annually among Southwestern, the U.S. Army Corps of Engineers (Corps), and the Southwestern Power Resources Association to assess non-routine work to be performed at the Corps hydropower projects from which Southwestern markets power. Funding for this work averages a little over $20

  18. Modeling an Application's Theoretical Minimum and Average Transactional Response Times

    SciTech Connect (OSTI)

    Paiz, Mary Rose

    2015-04-01

    The theoretical minimum transactional response time of an application serves as a ba- sis for the expected response time. The lower threshold for the minimum response time represents the minimum amount of time that the application should take to complete a transaction. Knowing the lower threshold is beneficial in detecting anomalies that are re- sults of unsuccessful transactions. On the converse, when an application's response time falls above an upper threshold, there is likely an anomaly in the application that is causing unusual performance issues in the transaction. This report explains how the non-stationary Generalized Extreme Value distribution is used to estimate the lower threshold of an ap- plication's daily minimum transactional response time. It also explains how the seasonal Autoregressive Integrated Moving Average time series model is used to estimate the upper threshold for an application's average transactional response time.

  19. Average dynamics of a finite set of coupled phase oscillators

    SciTech Connect (OSTI)

    Dima, Germn C. Mindlin, Gabriel B.

    2014-06-15

    We study the solutions of a dynamical system describing the average activity of an infinitely large set of driven coupled excitable units. We compared their topological organization with that reconstructed from the numerical integration of finite sets. In this way, we present a strategy to establish the pertinence of approximating the dynamics of finite sets of coupled nonlinear units by the dynamics of its infinitely large surrogate.

  20. Averaging cross section data so we can fit it

    SciTech Connect (OSTI)

    Brown, D.

    2014-10-23

    The 56Fe cross section we are interested in have a lot of fluctuations. We would like to fit the average of the cross section with cross sections calculated within EMPIRE. EMPIRE is a Hauser-Feshbach theory based nuclear reaction code, requires cross sections to be smoothed using a Lorentzian profile. The plan is to fit EMPIRE to these cross sections in the fast region (say above 500 keV).

  1. Table A44. Average Prices of Purchased Electricity and Steam

    U.S. Energy Information Administration (EIA) Indexed Site

    4. Average Prices of Purchased Electricity and Steam" " by Type of Supplier, Census Region, Census Division, and" " Economic Characteristics of the Establishment, 1994" " (Estimates in Dollars per Physical Units)" ," Electricity",," Steam" ," (kWh)",," (million Btu)" ,,,,,"RSE" ,"Utility","Nonutility","Utility","Nonutility","Row" "Economic

  2. Evaluation of Metal Halide, Plasma, and LED Lighting Technologies for a Hydrogen Fuel Cell Mobile Light (H 2 LT)

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Miller, L. B.; Donohoe, S. P.; Jones, M. H.; White, W. A.; Klebanoff, L. E.; Velinsky, S. A.

    2015-04-22

    This article reports on the testing and comparison of a prototype hydrogen fuel cell light tower (H2LT) and a conventional diesel-powered metal halide light trailer for use in road maintenance and construction activities. The prototype was originally outfitted with plasma lights and then with light-emitting diode (LED) luminaires. Light output and distribution, lighting energy efficiency (i.e., efficacy), power source thermal efficiency, and fuel costs are compared. The metal halide luminaires have 2.2 and 3.1 times more light output than the plasma and LED luminaires, respectively, but they require more power/lumen to provide that output. The LED luminaires have 1.6 timesmore » better light efficacy than either the metal halide or plasma luminaires. The light uniformity ratios produced by the plasma and LED towers are acceptable. The fuel cell thermal efficiency at the power required to operate the plasma lights is 48%, significantly higher than the diesel generator efficiency of 23% when operating the metal halide lights. Due to the increased efficiency of the fuel cell and the LED lighting, the fuel cost per lumen-hour of the H2LT is 62% of the metal halide diesel light tower assuming a kilogram of hydrogen is twice the cost of a gallon of diesel fuel.« less

  3. Electric Power | Department of Energy

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

    Power Electric Power From incandescent bulbs to fluorescents to LEDs, <a href="/node/772396">learn more</a> about the long history of the light bulb. From incandescent bulbs to fluorescents to LEDs, learn more about the long history of the light bulb. Electricity -- the flow of electrical power -- is a secondary energy source, generated by the conversion of primary sources of energy, like fossil, nuclear, wind or solar. Keeping the power flowing to American homes and

  4. Brief History of Artificial Lighting Technology

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

    Artificial Lighting Technology - 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

  5. Peak power ratio generator

    DOE Patents [OSTI]

    Moyer, Robert D. (Albuquerque, NM)

    1985-01-01

    A peak power ratio generator is described for measuring, in combination with a conventional power meter, the peak power level of extremely narrow pulses in the gigahertz radio frequency bands. The present invention in a preferred embodiment utilizes a tunnel diode and a back diode combination in a detector circuit as the only high speed elements. The high speed tunnel diode provides a bistable signal and serves as a memory device of the input pulses for the remaining, slower components. A hybrid digital and analog loop maintains the peak power level of a reference channel at a known amount. Thus, by measuring the average power levels of the reference signal and the source signal, the peak power level of the source signal can be determined.

  6. Idaho Power - New Building Efficiency Program | Department of...

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

    for lighting controls, HVAC equipment and controls, building shell measures, and energy controlventilation equipment. Incentives are designed to average about half the...

  7. Fact #571: May 18, 2009 Light Truck CAFE Standards – 2006 Reformation

    Broader source: Energy.gov [DOE]

    In 2006 the National Highway Traffic Safety Administration (NHTSA) established new requirements for the light truck Corporate Average Fuel Economy (CAFE) standards. In the new rule, there are...

  8. Exciting White Lighting

    Broader source: Energy.gov [DOE]

    Windows that emit light and are more energy efficient? Universal Display’s PHOLED technology enables windows that have transparent light-emitting diodes in them.

  9. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    Motivation and Computation of Lighting Measures Floorspace by Lighting Equipment Configuration As described in Appendix A, for each building b, the CBECS data set has the total...

  10. lighting in the library

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

    lamps. Metal halide lamps are used to light large indoor areas such as gymnasiums, sports arenas, and anywhere that color rendering is important. High-pressure sodium lighting...

  11. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    are also under consideration. Outside the DOE, the Environmental Protection Agency's Green Lights program promotes energy-efficient lighting as a means to reducing...

  12. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    more comprehensive understanding of commercial lighting and the potential for lighting energy savings. Steps to build on this analysis can be taken in many directions. One...

  13. Leavenworth Tree Lighting

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

    Join HERO for our annual Leavenworth Tree Lighting Ceremony & Shopping SATURDAY DECEMBER 12, 2015 Leavenworth Christmas Lighting Festival Visitors return year after year for some...

  14. Solid State Lighting Reliability

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

    Solid State Lighting Reliability 2015Building Technologies Office Peer Review Lynn Davis, ... life testing methodologies that help lighting manufacturers and key stakeholders and ...

  15. Solid State Lighting Reliability

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

    Solid State Lighting Reliability 2014 Building Technologies Office Peer Review Lynn Davis, ... DOE : 370 K methodologies to help lighting manufacturers and key stakeholders ...

  16. residential-lighting

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

    Efficiency Progress Report Evaluation Utility Toolkit Residential Lighting Market Research The Residential Lighting Market Research Project will estimate market savings from...

  17. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    light by passing electricity through mercury vapor, which causes the fluorescent coating to glow or fluoresce. High-Efficiency Ballast (HEB): A lighting conservation feature...

  18. Fact #739: August 6, 2012 Light Vehicle Dealership Sales Trends...

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

    In 2007, almost 60% of sales from an average light vehicle dealership were new cars. New car sales declined to 52.3% of a dealership's sales in 2009, when serviceparts rose to ...

  19. Table 14a. Average Electricity Prices, Projected vs. Actual

    U.S. Energy Information Administration (EIA) Indexed Site

    a. Average Electricity Prices, Projected vs. Actual" "Projected Price in Constant Dollars" " (constant dollars, cents per kilowatt-hour in ""dollar year"" specific to each AEO)" ,"AEO $ Year",1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013 "AEO 1994",1992,6.799,6.7999,6.9,6.9,6.9,6.9,7,7,7.1,7.1,7.2,7.2,7.2,7.3,7.3,7.4,7.5,7.6 "AEO

  20. Photovoltaic module with light reflecting backskin

    DOE Patents [OSTI]

    Gonsiorawski, Ronald C. (Danvers, MA)

    2007-07-03

    A photovoltaic module comprises electrically interconnected and mutually spaced photovoltaic cells that are encapsulated by a light-transmitting encapsulant between a light-transparent front cover and a back cover, with the back cover sheet being an ionomer/nylon alloy embossed with V-shaped grooves running in at least two directions and coated with a light reflecting medium so as to provide light-reflecting facets that are aligned with the spaces between adjacent cells and oriented so as to reflect light falling in those spaces back toward said transparent front cover for further internal reflection onto the solar cells, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to the photovoltaic cells, thereby increasing the current output of the module. The internal reflector improves power output by as much as 67%.

  1. Light Duty Combustion Research: Advanced Light-Duty Combustion...

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

    Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments 2009 DOE Hydrogen Program and ...

  2. 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,...

  3. Climate Change, Nuclear Power and Nuclear Proliferation: Magnitude Matters

    SciTech Connect (OSTI)

    Robert J. Goldston

    2010-03-03

    Integrated energy, environment and economics modeling suggests electrical energy use will increase from 2.4 TWe today to 12 TWe in 2100. It will be challenging to provide 40% of this electrical power from combustion with carbon sequestration, as it will be challenging to provide 30% from renewable energy sources. Thus nuclear power may be needed to provide ~30% by 2100. Calculations of the associated stocks and flows of uranium, plutonium and minor actinides indicate that the proliferation risks at mid-century, using current light-water reactor technology, are daunting. There are institutional arrangements that may be able to provide an acceptable level of risk mitigation, but they will be difficult to implement. If a transition is begun to fast-spectrum reactors at mid-century, without a dramatic change in the proliferation risks of such systems, at the end of the century proliferation risks are much greater, and more resistant to mitigation. The risks of nuclear power should be compared with the risks of the estimated 0.64oC long-term global surface-average temperature rise predicted if nuclear power were replaced with coal-fired power plants without carbon sequestration. Fusion energy, if developed, would provide a source of nuclear power with much lower proliferation risks than fission.

  4. Light Water Reactor Sustainability Technical Documents | Department of

    Energy Savers [EERE]

    Energy Nuclear Reactor Technologies » Light Water Reactor Sustainability Program » Light Water Reactor Sustainability Technical Documents Light Water Reactor Sustainability Technical Documents April 30, 2015 LWRS Program and EPRI Long-Term Operations Program - Joint R&D Plan To address the challenges associated with pursuing commercial nuclear power plant operations beyond 60 years, the U.S. Department of Energy's (DOE) Office of Nuclear Energy (NE) and the Electric Power Research

  5. NREL Provides PV Holiday Lights for Christmas Tree

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

    Provides PV Holiday Lights for Christmas Tree For more information contact: George Douglas (303) 275-4096 Golden, Colo., December 2, 1997 -- National Renewable Energy Laboratory (NREL) engineers are showing off the power of photovoltaics in Washington, D.C. again this holiday season. They have installed an 8-kilowatt solar array on the Ellipse just south of the White House to help power lights on the National Christmas Tree. The tree lighting ceremony on Dec. 4 begins Washington's 1997 Pageant

  6. Controls for Solid-State Lighting

    SciTech Connect (OSTI)

    Rubinstein, Francis

    2007-06-22

    This study predicts new hybrid lighting applications for LEDs. In hybrid lighting, LEDs provide a low-energy 'standby' light level while another, more powerful, efficient light source provides light for occupied periods. Lighting controls will allow the two light sources to work together through an appropriate control strategy, typically motion-sensing. There are no technical barriers preventing the use of low through high CRI LEDs for standby lighting in many interior and exterior applications today. The total luminous efficacy of LED systems could be raised by increasing the electrical efficiency of LED drivers to the maximum practically achievable level (94%). This would increase system luminous efficacy by 20-25%. The expected market volumes for many types of LEDs should justify the evolution of new LED drivers that use highly efficient ICs and reduce parts count by means of ASICs. Reducing their electronics parts count by offloading discrete components onto integrated circuits (IC) will allow manufacturers to reduce the cost of LED driver electronics. LED luminaire manufacturers will increasingly integrate the LED driver and thermal management directly in the LED fixture. LED luminaires of the future will likely have no need for separable lamp and ballast because the equipment life of all the LED luminaire components will all be about the same (50,000 hours). The controls and communications techniques used for communicating with conventional light sources, such as dimmable fluorescent lighting, are appropriate for LED illumination for energy management purposes. DALI has been used to control LED systems in new applications and the emerging ZigBee protocol could be used for LEDs as well. Major lighting companies are already moving in this direction. The most significant finding is that there is a significant opportunity to use LEDs today for standby lighting purposes. Conventional lighting systems can be made more efficient still by using LEDs to provide a low-energy standby state when lower light levels are acceptable.

  7. Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate (Presentation)

    SciTech Connect (OSTI)

    Narumanchi, S.

    2013-07-01

    This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

  8. Application for Presidential Permit OE Docket No. PP-059 Central Power and

    Energy Savers [EERE]

    Light Company (CPL) | Department of Energy 59 Central Power and Light Company (CPL) Application for Presidential Permit OE Docket No. PP-059 Central Power and Light Company (CPL) Application from Central Power and Light Company (CPL) to construct, operate and maintain electric transmission facilities at the U.S. - Mexico Border PDF icon Application for Presidential Permit OE Docket No. PP-59 Central Power and Light Company (CPL) More Documents & Publications Application for Presidential

  9. Pedestrian Friendly Outdoor Lighting

    SciTech Connect (OSTI)

    Miller, N. J.; Koltai, R. N.; McGowan, T. K.

    2013-12-01

    The GATEWAY program followed two pedestrian-scale lighting projects that required multiple mockups one at Stanford University in California and the other at Chautauqua Institution in upstate New York. The report provides insight into pedestrian lighting criteria, how they differ from street and area lighting criteria, and how solid-state lighting can be better applied in pedestrian applications.

  10. Backscatter absorption gas imaging systems and light sources therefore

    DOE Patents [OSTI]

    Kulp, Thomas Jan (Livermore, CA); Kliner, Dahv A. V. (San Ramon, CA); Sommers, Ricky (Oakley, CA); Goers, Uta-Barbara (Campbell, NY); Armstrong, Karla M. (Livermore, CA)

    2006-12-19

    The location of gases that are not visible to the unaided human eye can be determined using tuned light sources that spectroscopically probe the gases and cameras that can provide images corresponding to the absorption of the gases. The present invention is a light source for a backscatter absorption gas imaging (BAGI) system, and a light source incorporating the light source, that can be used to remotely detect and produce images of "invisible" gases. The inventive light source has a light producing element, an optical amplifier, and an optical parametric oscillator to generate wavelength tunable light in the IR. By using a multi-mode light source and an amplifier that operates using 915 nm pump sources, the power consumption of the light source is reduced to a level that can be operated by batteries for long periods of time. In addition, the light source is tunable over the absorption bands of many hydrocarbons, making it useful for detecting hazardous gases.

  11. 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.

  12. U.S. Conventional, Average Refiner Gasoline Prices

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

    1.841 2.259 3.008 3.083 2.977 2.778 1994-2014 Through Retail Outlets 1.845 2.264 3.016 3.098 2.997 2.800 1994-2014 Sales for Resale, Average 1.738 2.143 2.841 2.886 2.774 2.587 1994-2014 DTW 1.843 2.270 2.939 3.024 2.825 2.736 1994-2014 Rack 1.750 2.155 2.851 2.887 2.775 2.589 1994-2014 Bulk 1.664 2.069 2.758 2.843 2.755 2.535 1994-2014

  13. U.S. Conventional, Average Refiner Gasoline Prices

    Gasoline and Diesel Fuel Update (EIA)

    161 2.057 1.785 1.759 1.601 1.472 1994-2015 Through Retail Outlets 2.160 2.058 1.786 1.760 1.602 1.472 1994-2015 Sales for Resale, Average 1.975 1.763 1.553 1.513 1.373 1.290 1994-2015 DTW 2.319 2.109 1.812 1.637 1.591 1.532 1994-2015 Rack 1.965 1.759 1.559 1.519 1.372 1.288 1994-2015 Bulk 1.991 1.707 1.449 1.413 1.326 1.254

  14. U.S. Reformulated, Average Refiner Gasoline Prices

    Gasoline and Diesel Fuel Update (EIA)

    660 2.501 2.155 2.007 1.905 1.836 1994-2015 Through Retail Outlets 2.661 2.503 2.157 2.008 1.907 1.837 1994-2015 Sales for Resale, Average 2.283 1.996 1.728 1.651 1.537 1.497 1994-2015 DTW 2.795 2.477 2.128 1.979 1.864 1.854 1994-2015 Rack 2.165 1.886 1.634 1.577 1.459 1.412 1994-2015 Bulk 2.208 1.866 1.645 1.566 1.524 1.456

  15. Table 17. Average Price of U.S. Coke Exports

    Gasoline and Diesel Fuel Update (EIA)

    7. Average Price of U.S. Coke Exports (dollars per short ton) Year to Date Continent and Country of Destination July - September 2015 April - June 2015 July - September 2014 2015 2014 Percent Change North America Total 234.67 253.60 264.43 252.47 261.48 -3.4 Canada* 209.80 247.54 287.72 243.43 285.74 -14.8 Mexico 460.37 307.48 200.84 305.69 217.48 40.6 Other** 643.59 666.50 577.54 640.63 545.34 17.5 South America Total 135.27 - 465.18 252.87 154.98 63.2 Other** 135.27 - 465.18 252.87 154.98 63.2

  16. Table 19. Average Price of U.S. Coal Imports

    Gasoline and Diesel Fuel Update (EIA)

    9. Average Price of U.S. Coal Imports (dollars per short ton) Year to Date Continent and Country of Origin July - September 2015 April - June 2015 July - September 2014 2015 2014 Percent Change North America Total 121.76 122.71 133.33 119.13 130.81 -8.9 Canada 121.76 122.71 133.33 119.13 130.81 -8.9 Mexico - - 209.82 113.43 209.82 -45.9 South America Total 65.22 66.89 76.03 67.64 78.56 -13.9 Colombia 65.34 66.89 75.63 67.59 78.37 -13.8 Peru - 92.99 81.65 86.24 81.65 5.6 Venezuela 57.60 - 90.59

  17. Table 22. Average Price of U.S. Coke Imports

    Gasoline and Diesel Fuel Update (EIA)

    2. Average Price of U.S. Coke Imports (dollars per short ton) Year to Date Continent and Country of Origin July - September 2015 April - June 2015 July - September 2014 2015 2014 Percent Change North America Total 120.37 192.95 189.61 131.75 96.81 36.1 Canada 120.37 192.95 189.61 131.75 96.81 36.1 South America Total 201.39 274.73 223.17 202.76 223.17 -9.1 Colombia 201.39 274.73 223.17 202.76 223.17 -9.1 Europe Total 120.34 302.86 363.18 153.02 397.65 -61.5 Czech Republic - 288.36 - 288.36 - -

  18. Table 8. Average Price of U.S. Coal Exports

    Gasoline and Diesel Fuel Update (EIA)

    8. Average Price of U.S. Coal Exports (dollars per short ton) Year to Date Continent and Country of Destination July - September 2015 April - June 2015 July - September 2014 2015 2014 Percent Change North America Total 82.44 83.85 79.86 81.55 76.14 7.1 Canada* 89.71 89.92 84.62 88.24 75.55 16.8 Dominican Republic 77.11 78.67 56.46 84.15 53.14 58.4 Guatemala 34.59 103.41 - 45.24 81.92 -44.8 Honduras 45.36 45.36 54.43 47.54 54.43 -12.7 Jamaica 80.74 90.72 55.34 73.19 54.88 33.4 Mexico 74.06 75.06

  19. Average System Cost Methodology : Administrator's Record of Decision.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1984-06-01

    Significant features of average system cost (ASC) methodology adopted are: retention of the jurisdictional approach where retail rate orders of regulartory agencies provide primary data for computing the ASC for utilities participating in the residential exchange; inclusion of transmission costs; exclusion of construction work in progress; use of a utility's weighted cost of debt securities; exclusion of income taxes; simplification of separation procedures for subsidized generation and transmission accounts from other accounts; clarification of ASC methodology rules; more generous review timetable for individual filings; phase-in of reformed methodology; and each exchanging utility must file under the new methodology within 20 days of implementation by the Federal Energy Regulatory Commission of the ten major participating utilities, the revised ASC will substantially only affect three. (PSB)

  20. lighting in the library

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

    The amount and quality of light around us affects our health, safety, comfort, and productivity. Our country spends more than $37 billion each year on electricity for lighting, but technologies developed during the past 10 years can help us cut lighting costs by 30% to 60% while enhancing lighting quality and reducing environmental impacts. In a typical indoor lighting system, 50 percent or more of the energy supplied to the lamp can be wasted by obsolete equipment, poor maintenance, or

  1. Gauge and averaging in gravitational self-force

    SciTech Connect (OSTI)

    Gralla, Samuel E.

    2011-10-15

    A difficulty with previous treatments of the gravitational self-force is that an explicit formula for the force is available only in a particular gauge (Lorenz gauge), where the force in other gauges must be found through a transformation law once the Lorenz-gauge force is known. For a class of gauges satisfying a 'parity condition' ensuring that the Hamiltonian center of mass of the particle is well-defined, I show that the gravitational self-force is always given by the angle average of the bare gravitational force. To derive this result I replace the computational strategy of previous work with a new approach, wherein the form of the force is first fixed up to a gauge-invariant piece by simple manipulations, and then that piece is determined by working in a gauge designed specifically to simplify the computation. This offers significant computational savings over the Lorenz gauge, since the Hadamard expansion is avoided entirely and the metric perturbation takes a very simple form. I also show that the rest mass of the particle does not evolve due to first-order self-force effects. Finally, I consider the 'mode sum regularization' scheme for computing the self-force in black hole background spacetimes, and use the angle-average form of the force to show that the same mode-by-mode subtraction may be performed in all parity-regular gauges. It appears plausible that suitably modified versions of the Regge-Wheeler and radiation gauges (convenient to Schwarzschild and Kerr, respectively) are in this class.

  2. Light Water Reactor Sustainability (LWRS) Program | Department of Energy

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

    Nuclear Reactor Technologies » Light Water Reactor Sustainability (LWRS) Program Light Water Reactor Sustainability (LWRS) Program Light Water Reactor Sustainability (LWRS) Program The Light Water Reactor Sustainability (LWRS) Program is developing the scientific basis to extend existing nuclear power plant operating life beyond the current 60-year licensing period and ensure long-term reliability, productivity, safety, and security. The program is conducted in collaboration with national

  3. Power Surge: Uranium alloy fuel for TerraPower | Y-12 National...

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

    offers benefits missing from today's light water reactors, TerraPower asserts. ... Founded in 2008, TerraPower has completed a conceptual design of a sodium-cooled fast reactor ...

  4. Demand Responsive Lighting: A Scoping Study

    SciTech Connect (OSTI)

    Rubinstein, Francis; Kiliccote, Sila

    2007-01-03

    The objective of this scoping study is: (1) to identify current market drivers and technology trends that can improve the demand responsiveness of commercial building lighting systems and (2) to quantify the energy, demand and environmental benefits of implementing lighting demand response and energy-saving controls strategies Statewide. Lighting systems in California commercial buildings consume 30 GWh. Lighting systems in commercial buildings often waste energy and unnecessarily stress the electrical grid because lighting controls, especially dimming, are not widely used. But dimmable lighting equipment, especially the dimming ballast, costs more than non-dimming lighting and is expensive to retrofit into existing buildings because of the cost of adding control wiring. Advances in lighting industry capabilities coupled with the pervasiveness of the Internet and wireless technologies have led to new opportunities to realize significant energy saving and reliable demand reduction using intelligent lighting controls. Manufacturers are starting to produce electronic equipment--lighting-application specific controllers (LAS controllers)--that are wirelessly accessible and can control dimmable or multilevel lighting systems obeying different industry-accepted protocols. Some companies make controllers that are inexpensive to install in existing buildings and allow the power consumed by bi-level lighting circuits to be selectively reduced during demand response curtailments. By intelligently limiting the demand from bi-level lighting in California commercial buildings, the utilities would now have an enormous 1 GW demand shed capability at hand. By adding occupancy and light sensors to the remotely controllable lighting circuits, automatic controls could harvest an additional 1 BkWh/yr savings above and beyond the savings that have already been achieved. The lighting industry's adoption of DALI as the principal wired digital control protocol for dimming ballasts and increased awareness of the need to standardize on emerging wireless technologies are evidence of this transformation. In addition to increased standardization of digital control protocols controller capabilities, the lighting industry has improved the performance of dimming lighting systems over the last two years. The system efficacy of today's current dimming ballasts is approaching that of non-dimming program start ballasts. The study finds that the benefits of applying digital controls technologies to California's unique commercial buildings market are enormous. If California were to embark on an concerted 20 year program to improve the demand responsiveness and energy efficiency of commercial building lighting systems, the State could avoid adding generation capacity, improve the elasticity of the grid, save Californians billion of dollars in avoided energy charges and significantly reduce greenhouse gas emissions.

  5. Effective White Light Options for Parking Area Lighting | Department of

    Office of Environmental Management (EM)

    Energy Effective White Light Options for Parking Area Lighting Effective White Light Options for Parking Area Lighting Document details lighting technologies that provide low-maintenance alternatives to high-pressure sodium lighting. PDF icon white_light_parking_area..pdf More Documents & Publications LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center Demonstration Assessment of Light Emitting Diode (LED) Street Lighting, Final Report

  6. Table 14a. Average Electricity Prices, Projected vs. Actual

    Gasoline and Diesel Fuel Update (EIA)

    a. Average Electricity Prices, Projected vs. Actual Projected Price in Constant Dollars (constant dollars, cents per kilowatt-hour in "dollar year" specific to each AEO) AEO $ Year 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 AEO 1994 1992 6.80 6.80 6.90 6.90 6.90 6.90 7.00 7.00 7.10 7.10 7.20 7.20 7.20 7.30 7.30 7.40 7.50 7.60 AEO 1995 1993 6.80 6.80 6.70 6.70 6.70 6.70 6.70 6.80 6.80 6.90 6.90 6.90 7.00 7.00 7.10 7.10 7.20

  7. Ensemble bayesian model averaging using markov chain Monte Carlo sampling

    SciTech Connect (OSTI)

    Vrugt, Jasper A; Diks, Cees G H; Clark, Martyn P

    2008-01-01

    Bayesian model averaging (BMA) has recently been proposed as a statistical method to calibrate forecast ensembles from numerical weather models. Successful implementation of BMA however, requires accurate estimates of the weights and variances of the individual competing models in the ensemble. In their seminal paper (Raftery etal. Mon Weather Rev 133: 1155-1174, 2(05)) has recommended the Expectation-Maximization (EM) algorithm for BMA model training, even though global convergence of this algorithm cannot be guaranteed. In this paper, we compare the performance of the EM algorithm and the recently developed Differential Evolution Adaptive Metropolis (DREAM) Markov Chain Monte Carlo (MCMC) algorithm for estimating the BMA weights and variances. Simulation experiments using 48-hour ensemble data of surface temperature and multi-model stream-flow forecasts show that both methods produce similar results, and that their performance is unaffected by the length of the training data set. However, MCMC simulation with DREAM is capable of efficiently handling a wide variety of BMA predictive distributions, and provides useful information about the uncertainty associated with the estimated BMA weights and variances.

  8. Tips: Lighting | Department of Energy

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

    Tips: Lighting Tips: Lighting Lighting choices save you money. Energy-efficient light bulbs are available in a wide variety of sizes and shapes. Lighting choices save you money....

  9. Spectrally Enhanced Lighting Program Implementation for Energy Savings: Field Evaluation

    SciTech Connect (OSTI)

    Gordon, Kelly L.; Sullivan, Gregory P.; Armstrong, Peter R.; Richman, Eric E.; Matzke, Brett D.

    2006-08-22

    This report provides results from an evaluation PNNL conducted of a spectrally enhanced lighting demonstration project. PNNL performed field measurements and occupant surveys at three office buildings in California before and after lighting retrofits were made in August and December 2005. PNNL measured the following Overhead lighting electricity demand and consumption, Light levels in the workspace, Task lighting use, and Occupant ratings of satisfaction with the lighting. Existing lighting, which varied in each building, was replaced with lamps with correlated color temperature (CCT) of 5000 Kelvin, color rendering index (CRI) of 85, of varying wattages, and lower ballast factor electronic ballasts. The demonstrations were designed to decrease lighting power loads in the three buildings by 22-50 percent, depending on the existing installed lamps and ballasts. The project designers hypothesized that this reduction in electrical loads could be achieved by the change to higher CCT lamps without decreasing occupant satisfaction with the lighting.

  10. Fact #615: March 22, 2010 Average Vehicle Trip Length | Department of

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

    Energy 5: March 22, 2010 Average Vehicle Trip Length Fact #615: March 22, 2010 Average Vehicle Trip Length According to the latest National Household Travel Survey, the average trip length grew to over 10 miles in 2009, just slightly over the 9.9 mile average in 2001. Trips to work in 2009 increased to an average of 12.6 miles. The average trip length has been growing each survey year since the lowest average in 1983. Average Vehicle Trip Length, 1969-2009 Graph showing the average vehicle

  11. Lighting Basics | Department of Energy

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

    Homes & Buildings » Lighting & Daylighting » Lighting Basics Lighting Basics August 15, 2013 - 5:12pm Addthis Text Version There are many different types of artificial lights (formally called "lamps" in the lighting industry,) which have different applications and uses. Types of lighting include: Fluorescent Lighting High-intensity Discharge Lighting Incandescent Lighting LED Lighting. New lamp designs that use much more energy-efficient technology will start appearing in the

  12. Power Systems of the Future: A 21st Century Power Partnership Thought Leadership Report (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    Powerful trends in technology, policy environments, financing, and business models are driving change in power sectors globally. In light of these trends, the question is no longer whether power systems will be transformed, but rather how these transformations will occur. Power Systems of the Future, a thought leadership report from the 21st Century Power Partnership, explores these pathways explores actions that policymakers and regulators can take to encourage desired power system outcomes.

  13. CONNECTED LIGHTING SYSTEMS MEETING

    Broader source: Energy.gov [DOE]

    There is a lot of buzz today about the Internet of Things and the convergence of intelligent controllable light sources, communication networks, sensors, and data exchange in future lighting...

  14. lighting in the library

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

    Determine the Feasibility of Installing Energy Efficient Lighting In this part of the exercise, you will plan a new approach to lighting your school library. This new plan will use...

  15. Connected Lighting Systems Meeting

    Broader source: Energy.gov [DOE]

    There is a lot of buzz today about the Internet of Things and the convergence of intelligent controllable light sources, communication networks, sensors, and data exchange in future lighting...

  16. Commercial / Industrial Lighting

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

    New Commercial Program Development Commercial Current Promotions Industrial Federal Agriculture Commercial & Industrial Lighting Efficiency Program The Commercial & Industrial...

  17. lighting in the library

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

    Determine the Feasibility of Installing Energy Efficient Lighting In this part of the exercise, you will plan a new approach to lighting your school library. This new plan will use less energy, cost less, and result in less greenhouse gas. Your plan will also include bottom line calculations and decision factors such as: identifying the costs and payback for buying and installing new lighting equipment and making a determination about whether or not the new, more efficient lighting will provide

  18. Perovskite Power

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

    Perovskite Power 1663 Los Alamos science and technology magazine Latest Issue:October 2015 past issues All Issues submit Perovskite Power A breakthrough in the production of...

  19. Stationary Power

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

    Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & ... Our work in stationary power includes the deployment of clean electricity, which ...

  20. Exploring Light's Interactions with Bubbles and Light Absorbers in Photoelectrochemical Devices using Ray Tracing

    SciTech Connect (OSTI)

    Stevens, John

    2013-12-31

    Ray tracing was used to perform optical optimization of arrays of photovoltaic microrods and explore the interaction between light and bubbles of oxygen gas on the surface of the microrods. The incident angle of light was varied over a wide range. The percent of incident light absorbed by the microrods and reflected by the bubbles was computed over this range. It was found that, for the 10 μm diameter, 100 μm tall SrTiO{sub 3} microrods simulated in the model, the optimal center-­‐to-­‐center spacing was 14 μm for a square grid. This geometry produced 75% average and 90% maximum absorbance. For a triangular grid using the same microrods, the optimal center-­‐to-­‐center spacing was 14 μm. This geometry produced 67% average and 85% maximum absorbance. For a randomly laid out grid of 5 μm diameter, 100 μm tall SrTiO! microrods with an average center-­‐to-­‐center spacing of 20 μm, the average absorption was 23% and the maximum absorption was 43%. For a 50% areal coverage fraction of bubbles on the absorber surface, between 2%-­‐20% of the incident light energy was reflected away from the rods by the bubbles, depending upon incident angle and bubble morphology.

  1. UWB multi-burst transmit driver for averaging receivers

    DOE Patents [OSTI]

    Dallum, Gregory E

    2012-11-20

    A multi-burst transmitter for ultra-wideband (UWB) communication systems generates a sequence of precisely spaced RF bursts from a single trigger event. There are two oscillators in the transmitter circuit, a gated burst rate oscillator and a gated RF burst or RF power output oscillator. The burst rate oscillator produces a relatively low frequency, i.e., MHz, square wave output for a selected transmit cycle, and drives the RF burst oscillator, which produces RF bursts of much higher frequency, i.e., GHz, during the transmit cycle. The frequency of the burst rate oscillator sets the spacing of the RF burst packets. The first oscillator output passes through a bias driver to the second oscillator. The bias driver conditions, e.g., level shifts, the signal from the first oscillator for input into the second oscillator, and also controls the length of each RF burst. A trigger pulse actuates a timing circuit, formed of a flip-flop and associated reset time delay circuit, that controls the operation of the first oscillator, i.e., how long it oscillates (which defines the transmit cycle).

  2. Induction Lighting: An Old Lighting Technology Made New Again | Department

    Office of Environmental Management (EM)

    of Energy Induction Lighting: An Old Lighting Technology Made New Again Induction Lighting: An Old Lighting Technology Made New Again July 27, 2009 - 5:00am Addthis John Lippert Induction lighting is one of the best kept secrets in energy-efficient lighting. Simply stated, induction lighting is essentially a fluorescent light without electrodes or filaments, the items that frequently cause other bulbs to burn out quickly. Thus, many induction lighting units have an extremely long life of up

  3. Radiative cooling of bulk silicon by incoherent light pump

    SciTech Connect (OSTI)

    Malyutenko, V. K. Bogatyrenko, V. V.; Malyutenko, O. Yu.

    2013-12-23

    In contrast to radiative cooling by light up conversion caused exclusively by a low-entropy laser pump and employing thermally assisted fluorescence/luminescence as a power out, we demonstrate light down conversion cooling by incoherent pumps, 0.470.94??m light emitting diodes, and employing thermal emission (TE) as a power out. We demonstrate ?3.5?K bulk cooling of Si at 450?K because overall energy of multiple below bandgap TE photons exceeds the energy of a single above bandgap pump photon. We show that using large entropy TE as power out helps avoid careful tuning of an incoherent pump wavelength and cool indirect-bandgap semiconductors.

  4. Demonstration Assessment of Light Emitting Diode (LED) Commercial Garage Lights In the Providence Portland Medical Center, Portland, Oregon

    SciTech Connect (OSTI)

    Ton, My K.; Richman, Eric E.; Gilbride, Theresa L.

    2008-11-11

    This U.S. Department of Energy GATEWAY Demonstration project studied the applicability of light-emitting diode (LED) luminaires for commercial parking garage applications. High-pressure sodium (HPS) area luminaires were replaced with new LED area luminaires. The project was supported under the U.S. Department of Energy (DOE) Solid State Lighting Program. Other participants in the demonstration project included Providence Portland Medical Center in Portland, Oregon, the Energy Trust of Oregon, and Lighting Sciences Group (LSG) Inc. Pacific Northwest National Laboratory (PNNL) conducted the measurements and analysis of the results. PNNL manages GATEWAY demonstrations for DOE and represents their perspective in the conduct of the work. Quantitative and qualitative measurements of light and electrical power were taken at the site for both HPS and LED light sources. Economic costs were estimated and garage users’ responses to the new light sources were gauged with a survey. Six LED luminaires were installed in the below-ground parking level A, replacing six existing 150W HPS lamps spread out over two rows of parking spaces. Illuminance measurements were taken at floor level approximately every 4 ft on a 60-ft x 40-ft grid to measure light output of these LED luminaires which were termed the “Version 1” luminaires. PNNL conducted power measurements of the circuit in the garage to which the 6 luminaires were connected and determined that they drew an average of 82 W per lamp. An improved LED luminaire, Version 2, was installed in Level B of the parking garage. Illuminance measurements were not made of this second luminaire on site due to higher traffic conditions, but photometric measurements of this lamp and Version 1 were made in an independent testing laboratory and power usage for Version 2 was also measured. Version 1 was found to produce 3600 lumens and Version 2 was found to produce 4700 lumens of light and to consume 78 Watts. Maximum and minimum light levels were measured for the HPS and LED Version 1 luminaires and projected for the Version 2 luminaires. Maximum light levels were 23.51 foot candles, 20.54 fc, and 26.7 fc respectively and minimum light levels were 1.49 fc, 1.45 fc, and 1.88 fc. These results indicate very similar or even slightly higher light levels produced by the LED lamps, despite the higher lumen output of the HPS lamp. The LED lamps provide higher luminaire efficacy because all of the light is directed down and out. None of it is “lost” in the fixture. Also the HPS luminaire had poorly designed optics and a plastic covering that tended to get dirty and cracked, further decreasing the realized light output.[is this an accurate way to say this?] Consumer perceptions of the Version 2 LED were collected via a written survey form given to maintenance and security personnel. More than half felt the LED luminaires provided more light than the HPS lamps and a majority expressed a preference for the new lamps when viewing the relamped area through a security camera. Respondents commented that the LED luminaires were less glary, created less shadows, had a positive impact on visibility, and improved the overall appearance of the area. PNNL conducted an economic analysis and found that the Version 1 lamp produced annual energy savings of 955 kWh and energy cost savings of $76.39 per lamp at electricity rates of 6.5 cents per kWh and $105.03 at 11 cents per kWh. PNNL found that the Version 2 lamp produced annual energy savings of 991 kWh and energy cost savings of $79.26 per lamp at electricity rates of 6.5 cents per kWh and $108.98 at 11 cents per kWh. PNNL also calculated simple payback and found that Version 1 showed paybacks of 5.4 yrs at 6.5c/kWh and 4.1 yrs at 11c/kWh while Version 2 showed paybacks of 5.2 yrs at 6.5c/kWh and 3.9 yrs at 11c/kWh.

  5. And the Oscar for Sustainable Mobile Lighting Goes to.... Lighting...

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

    And the Oscar for Sustainable Mobile Lighting Goes to.... Lighting Up Operations with Hydrogen and Fuel Cell Technology And the Oscar for Sustainable Mobile Lighting Goes to.... ...

  6. Light emitting device comprising phosphorescent materials for white light generation

    DOE Patents [OSTI]

    Thompson, Mark E.; Dapkus, P. Daniel

    2014-07-22

    The present invention relates to phosphors for energy downconversion of high energy light to generate a broadband light spectrum, which emit light of different emission wavelengths.

  7. Light-storing photocatalyst

    SciTech Connect (OSTI)

    Zhang Junying; Pan Feng; Hao Weichang; Ge Qi; Wang Tianmian

    2004-12-06

    Light-storing photocatalyst was prepared by coating light-storing phosphor and TiO{sub 2} photocatalyst in sequence on ceramic. The light-storing photocatalyst can store light irradiation and emit slowly. Consequently, the photocatalyst remains active when the irradiation source is cut off. Rhodamine B (RhB) can be decomposed efficiently by this photocatalyst in the dark after it absorbs light irradiation. This photocatalyst is photoreactive in an outdoor environment or can save energy by supplying irradiation intermittently for the photocatalyst.

  8. Photonic crystal light source

    DOE Patents [OSTI]

    Fleming, James G. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM); Bur, James A. (Corrales, NM)

    2004-07-27

    A light source is provided by a photonic crystal having an enhanced photonic density-of-states over a band of frequencies and wherein at least one of the dielectric materials of the photonic crystal has a complex dielectric constant, thereby producing enhanced light emission at the band of frequencies when the photonic crystal is heated. The dielectric material can be a metal, such as tungsten. The spectral properties of the light source can be easily tuned by modification of the photonic crystal structure and materials. The photonic crystal light source can be heated electrically or other heating means. The light source can further include additional photonic crystals that exhibit enhanced light emission at a different band of frequencies to provide for color mixing. The photonic crystal light source may have applications in optical telecommunications, information displays, energy conversion, sensors, and other optical applications.

  9. Essential Power Systems Workshop - OEM Perspective

    SciTech Connect (OSTI)

    Bill Gouse

    2001-12-12

    In California, idling is largely done for climate control. This suggests that climate control devices alone could be used to reduce idling. Line-haul truck drivers surveyed require an average of 4-6 kW of power for a stereo, CB radio, light, refrigerator, and climate control found in the average truck. More power may likely be necessary for peak power demands. The amount of time line-haul trucks reported to have stopped is between 25 and 30 hours per week. It was not possible to accurately determine from the pilot survey the location, purpose, and duration of idling. Consulting driver logs or electronically monitoring trucks could yield more accurate data, including seasonal and geographic differences. Truck drivers were receptive to idling alternatives. Two-thirds of truck drivers surveyed support a program to reduce idling. Two-thirds of drivers reported they would purchase idling reduction technologies if the technology yielded a payback period of two years or less. Willingness to purchase auxiliary power units appears to be higher for owner-operators than for company drivers. With a 2-year payback period, 82% of owner- operators would be willing to buy an idle- reducing device, while 63% of company drivers thought their company would do the same. Contact with companies is necessary to discern whether this difference between owner- operators and companies is true or simply due to the perception of the company drivers. Truck stops appear to be a much more attractive option for electrification than rest areas by a 48% to 21% margin. Much of this discrepancy may be due to perceived safety problems with rest areas. This survey did not properly differentiate between using these areas for breaks or overnight. The next, full survey will quantify where the truck drivers are staying overnight, where they go for breaks, and the duration of time they spend at each place. The nationwide survey, which is in progress, will indicate how applicable the results are to the US in general. In addition to the survey, we believe data loggers and focus groups will be necessary to collect the idling duration and location data necessary to compare auxiliary power units to truck stop electrification. Focus groups are recommended to better understand the driver response to APUs and electrification. The appearance and perception of the new systems will need further clarification, which could be accomplished with a demonstration for truck drivers.

  10. Water Power

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

    Stationary Power/Energy Conversion Efficiency/Water Power - Water PowerTara Camacho-Lopez2016-02-16T18:27:48+00:00 Enabling a successful water power industry. Hydropower Optimization Developing tools for optimizing the U.S. hydropower fleet's performance with minimal environmental impact. Technology Development Improving the power performance and reliability of marine hydrokinetic technologies. Market Acceleration & Deployment Addressing barriers to development, deployment, and evaluation of

  11. WINDExchange: Where Is Wind Power?

    Wind Powering America (EERE)

    Where Is Wind Power? WINDExchange offers maps to help you visualize the wind resource at a local level and to show how much wind power has been installed in the United States. How much wind power is on my land? Go to the wind resource maps. Go to the wind resource maps. Go to the wind resource maps. If you want to know how much wind power is in a particular area, these wind resource maps can give you a visual indication of the average wind speeds to a local level such as a neighborhood. These

  12. Wisconsin Business Sheds Light on Lighting | Department of Energy

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

    Wisconsin Business Sheds Light on Lighting Wisconsin Business Sheds Light on Lighting April 29, 2010 - 4:59pm Addthis When this photograph was taken, the upper floors of ...

  13. DOE Light Truck Clean Diesel (LTCD) Program Final Caterpillar Public Report Light Truck Clean Diesel Program

    SciTech Connect (OSTI)

    Eric Fluga

    2004-09-30

    The US Department of Energy and Caterpillar entered a Cooperative Agreement to develop compression ignition engine technology suitable for the light truck/SUV market. Caterpillar, in collaboration with a suitable commercialization partner, developed a new Compression Ignition Direct Injection (CIDI) engine technology to dramatically improve the emissions and performance of light truck engines. The overall program objective was to demonstrate engine prototypes by 2004, with an order of magnitude emission reduction while meeting challenging fuel consumption goals. Program emphasis was placed on developing and incorporating cutting edge technologies that could remove the current impediments to commercialization of CIDI power sources in light truck applications. The major obstacle to commercialization is emissions regulations with secondary concerns of driveability and NVH (noise, vibration and harshness). The target emissions levels were 0.05 g/mile NOx and 0.01 g/mile PM to be compliant with the EPA Tier 2 fleet average requirements of 0.07 g/mile and the CARB LEV 2 of 0.05 g/mile for NOx, both have a PM requirement of 0.01 g/mile. The program team developed a combustion process that fundamentally shifted the classic NOx vs. PM behavior of CIDI engines. The NOx vs. PM shift was accomplished with a form of Homogeneous Charge Compression Ignition (HCCI). The HCCI concept centers on appropriate mixing of air and fuel in the compression process and controlling the inception and rate of combustion through various means such as variable valve timing, inlet charge temperature and pressure control. Caterpillar has adapted an existing Caterpillar design of a single injector that: (1) creates the appropriate fuel and air mixture for HCCI, (2) is capable of a more conventional injection to overcome the low power density problems of current HCCI implementations, (3) provides a mixed mode where both the HCCI and conventional combustion are functioning in the same combustion cycle. Figure 1 illustrates the mixed mode injection system. Under the LTCD program Caterpillar developed a mixed mode injector for a multi-cylinder engine system. The mixed mode injection system represents a critical enabling technology for the implementation of HCCI. In addition, Caterpillar implemented variable valve system technology and air system technology on the multi-cylinder engine platform. The valve and air system technology were critical to system control. Caterpillar developed the combustion system to achieve a 93% reduction in NOx emissions. The resulting NOx emissions were 0.12 gm/mile NOx. The demonstrated emissions level meets the stringent Tier 2 Bin 8 requirement without NOx aftertreatment! However, combustion development alone was not adequate to meet the program goal of 0.05gm/mile NOx. To meet the program goals, an additional 60% NOx reduction technology will be required. Caterpillar evaluated a number of NOx reduction technologies to quantify and understand the NOx reduction potential and system performance implications. The NOx adsorber was the most attractive NOx aftertreatment option based on fuel consumption and NOx reduction potential. In spite of the breakthrough technology development conducted under the LTCD program there remains many significant challenges associated with the technology configuration. For HCCI, additional effort is needed to develop a robust control strategy, reduce the hydrocarbon emissions at light load condition, and develop a more production viable fuel system. Furthermore, the NOx adsorber suffers from cost, packaging, and durability challenges that must be addressed.

  14. Light Stops, Light Staus and the 125 GeV Higgs

    SciTech Connect (OSTI)

    Carena, Marcela; Gori, Stefania; Shah, Nausheen R.; Wagner, Carlos E.M.; Wang, Lian-Tao

    2013-08-01

    The ATLAS and CMS experiments have recently announced the discovery of a Higgs-like resonance with mass close to 125 GeV. Overall, the data is consistent with a Standard Model (SM)-like Higgs boson. Such a particle may arise in the minimal supersymmetric extension of the SM with average stop masses of the order of the TeV scale and a sizable stop mixing parameter. In this article we discuss properties of the SM-like Higgs production and decay rates induced by the possible presence of light staus and light stops. Light staus can affect the decay rate of the Higgs into di-photons and, in the case of sizable left-right mixing, induce an enhancement in this production channel up to $\\sim$ 50% of the Standard Model rate. Light stops may induce sizable modifications of the Higgs gluon fusion production rate and correlated modifications to the Higgs diphoton decay. Departures from SM values of the bottom-quark and tau-lepton couplings to the Higgs can be obtained due to Higgs mixing effects triggered by light third generation scalar superpartners. We describe the phenomenological implications of light staus on searches for light stops and non-standard Higgs bosons. Finally, we discuss the current status of the search for light staus produced in association with sneutrinos, in final states containing a $W$ gauge boson and a pair of $\\tau$s.

  15. HEADLINE: BPA RAISES RATES TO BOLSTER FEDERAL POWER AND TRANSMISSION...

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

    high-voltage transmission lines that serve Northwest public utilities." For Bonneville's utility power customers, the wholesale rate increase will be an average of 9 percent...

  16. Playing Around with Lighting Efficiency | Department of Energy

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

    amount of energy the city needs to power the lights and saving about 2,300 a year. The city will also receive a full set of replacements after 5,000 hours - the typical life of...

  17. TEP Power Partners Project [Tucson Electric Power

    SciTech Connect (OSTI)

    2013-11-19

    The Arizona Governors Office of Energy Policy, in partnership with Tucson Electric Power (TEP), Tendril, and Next Phase Energy (NPE), formed the TEP Power Partners pilot project to demonstrate how residential customers could access their energy usage data and third party applications using data obtained from an Automatic Meter Reading (AMR) network. The project applied for and was awarded a Smart Grid Data Access grant through the U.S. Department of Energy. The project participants goal for Phase I is to actively engage 1,700 residential customers to demonstrate sustained participation, reduction in energy usage (kWh) and cost ($), and measure related aspects of customer satisfaction. This Demonstration report presents a summary of the findings, effectiveness, and customer satisfaction with the 15-month TEP Power Partners pilot project. The objective of the program is to provide residential customers with energy consumption data from AMR metering and empower these participants to better manage their electricity use. The pilot recruitment goals included migrating 700 existing customers from the completed Power Partners Demand Response Load Control Project (DRLC), and enrolling 1,000 new participants. Upon conclusion of the project on November 19, 2013: ? 1,390 Home Area Networks (HANs) were registered. ? 797 new participants installed a HAN. ? Survey respondents are satisfied with the program and found value with a variety of specific program components. ? Survey respondents report feeling greater control over their energy usage and report taking energy savings actions in their homes after participating in the program. ? On average, 43 % of the participants returned to the web portal monthly and 15% returned weekly. ? An impact evaluation was completed by Opinion Dynamics and found average participant savings for the treatment period1 to be 2.3% of their household use during this period.2 In total, the program saved 163 MWh in the treatment period of 2013.

  18. National Synchrotron Light Source

    ScienceCinema (OSTI)

    BNL

    2009-09-01

    A tour of Brookhaven's National Synchrotron Light Source (NSLS), hosted by Associate Laboratory Director for Light Sources, Stephen Dierker. The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviolet, and x-ray light for basic and applied research in physics, chemistry, medicine, geophysics, environmental, and materials sciences.

  19. High efficiency incandescent lighting

    DOE Patents [OSTI]

    Bermel, Peter; Ilic, Ognjen; Chan, Walker R.; Musabeyoglu, Ahmet; Cukierman, Aviv Ruben; Harradon, Michael Robert; Celanovic, Ivan; Soljacic, Marin

    2014-09-02

    Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.

  20. Lighting in the Library

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

    The purpose of the Lighting in the Library Activity is to calculate the electricity used to provide lighting in the school library and determine the feasibility of saving energy and money by using energy efficient lighting fixtures. Your students will assume the role of an energy auditor assigned the task of assessing the current situation and making a recommendation for energy-efficient improvements. This activitity requires a trip to the library, an examination of the school's energy bill, and

  1. Fact #614: March 15, 2010 Average Age of Household Vehicles | Department of

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

    Energy 4: March 15, 2010 Average Age of Household Vehicles Fact #614: March 15, 2010 Average Age of Household Vehicles The average age of household vehicles has increased from 6.6 years in 1977 to 9.2 years in 2009. Pickup trucks have the oldest average age in every year listed. Sport utility vehicles (SUVs), first reported in the 1995 survey, have the youngest average age. Average Vehicle Age by Vehicle Type Graph showing the average vehicle age by type (car, van, pickup, SUV, all household

  2. Photovoltaic electric power applied to Unmanned Aerial Vehicles (UAV)

    SciTech Connect (OSTI)

    Geis, J.; Arnold, J.H.

    1994-09-01

    Photovoltaic electric-powered flight is receiving a great deal of attention in the context of the United States` Unmanned Aerial Vehicle (UAV) program. This paper addresses some of the enabling technical areas and their potential solutions. Of particular interest are the long-duration, high-altitude class of UAV`s whose mission it is to achieve altitudes between 60,000 and 100,000 feet, and to remain at those altitudes for prolonged periods performing various mapping and surveillance activities. Addressed herein are studies which reveal the need for extremely light-weight and efficient solar cells, high-efficiency electric motor-driven propeller modules, and power management and distribution control elements. Since the potential payloads vary dramatically in their power consumption and duty cycles, a typical load profile has been selected to provide commonality for the propulsion power comparisons. Since missions vary widely with respect to ground coverage requirements, from repeated orbiting over a localized target to long-distance routes over irregular terrain, the authors have also averaged the power requirements for on-board guidance and control power, as well as ground control and communication link utilization. In the context of the national technology reinvestment program, wherever possible they modeled components and materials which have been qualified for space and defense applications, yet are compatible with civilian UAV activities. These include, but are not limited to, solar cell developments, electric storage technology for diurnal operation, local and ground communications, power management and distribution, and control servo design. And finally, the results of tests conducted by Wright Laboratory on ultralight, highly efficient MOCVD GaAs solar cells purchased from EPI Materials Ltd. (EML) of the UK are presented. These cells were also used for modeling the flight characteristics of UAV aircraft.

  3. Evaluation of Metal Halide, Plasma, and LED Lighting Technologies for a Hydrogen Fuel Cell Mobile Light (H 2 LT)

    SciTech Connect (OSTI)

    Miller, L. B.; Donohoe, S. P.; Jones, M. H.; White, W. A.; Klebanoff, L. E.; Velinsky, S. A.

    2015-04-22

    This article reports on the testing and comparison of a prototype hydrogen fuel cell light tower (H2LT) and a conventional diesel-powered metal halide light trailer for use in road maintenance and construction activities. The prototype was originally outfitted with plasma lights and then with light-emitting diode (LED) luminaires. Light output and distribution, lighting energy efficiency (i.e., efficacy), power source thermal efficiency, and fuel costs are compared. The metal halide luminaires have 2.2 and 3.1 times more light output than the plasma and LED luminaires, respectively, but they require more power/lumen to provide that output. The LED luminaires have 1.6 times better light efficacy than either the metal halide or plasma luminaires. The light uniformity ratios produced by the plasma and LED towers are acceptable. The fuel cell thermal efficiency at the power required to operate the plasma lights is 48%, significantly higher than the diesel generator efficiency of 23% when operating the metal halide lights. Due to the increased efficiency of the fuel cell and the LED lighting, the fuel cost per lumen-hour of the H2LT is 62% of the metal halide diesel light tower assuming a kilogram of hydrogen is twice the cost of a gallon of diesel fuel.

  4. Comparing Light Bulbs

    Broader source: Energy.gov [DOE]

    In this exercise, students will use a light to demonstrate the difference between being energy-efficient and energy-wasteful, and learn what energy efficiency means.

  5. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    Illuminance Assignments for CBECS Building Activity Categories Illuminance ranges were adopted from the 1987 Illuminating Engineering Society (IES) Lighting Handbook. The IES...

  6. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    from the engineering literature, based on CBECS building activity.) 4. Efficacy: an energy efficiency measure. Technically, the amount of light produced per unit of energy...

  7. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    (CEC), March 1990. Advanced Lighting Technologies Application Guidelines (ALTAG), Building and Appliance Efficiency Office. 3. Dubin, F.S., Mindell, H.L., and Bloome, S., 1976....

  8. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) Indexed Site

    energy are presented in this section. Statistics are presented by subgroups based on building characteristics, and by subgroups based on lighting equipment. The three sets of...

  9. Extragalactic Background Light

    Office of Scientific and Technical Information (OSTI)

    Extragalactic Background Light from Hierarchical Galaxy Formation: Gamma-ray Attenuation up to the Epoch of Cosmic Reionization and the First Stars Yoshiyuki Inoue 1 , Susumu Inoue...

  10. Lighting Test Facilities

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

    Lighting-Test-Facilities Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors Technology &...

  11. Light-Source Facilities

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

    Canada CTST - UCSB Center for Terahertz Science and Technology, USA DFELL - Duke Free Electron Laser Laboratory, USA Jlab - Jefferson Lab, USA LCLS - Linear Coherent Light...

  12. 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. ...

  13. Building Controls and Lighting Systems

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

    February 22, 2011 Francis Rubinstein Lead, Lighting Group Environmental Energy ... A. Building Systems Windows, Facades, and Daylighting Lighting Controls ...

  14. Incandescent Lighting | Department of Energy

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

    Lighting » Incandescent Lighting Incandescent Lighting Incandescent lighting is the most common, and least energy efficient, type of lighting used in homes. | Photo courtesy of ©iStockphoto/TokenPhoto. Incandescent lighting is the most common, and least energy efficient, type of lighting used in homes. | Photo courtesy of ©iStockphoto/TokenPhoto. Incandescent lamps are often considered the least energy efficient type of electric lighting commonly found in residential buildings. Although

  15. Fact #671: April 18, 2011 Average Truck Speeds | Department of Energy

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

    1: April 18, 2011 Average Truck Speeds Fact #671: April 18, 2011 Average Truck Speeds The Federal Highway Administration studies traffic volume and flow on major truck routes by tracking more than 500,000 trucks. The average speed of trucks on selected interstate highways is between 50 and 60 miles per hour (mph). The average operating speed of trucks is typically below 55 mph in major urban areas, border crossings, and in mountainous terrain. The difference in average speed between peak traffic

  16. Omaha Public Power District- Commercial Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Omaha Public Power District (OPPD) offers incentives for commercial and industrial customers to install energy-efficient heat pumps and replace/retrofit existing lighting systems. The Commercial...

  17. Delmarva Power- Home Performance with ENERGY STAR Incentive Program

    Broader source: Energy.gov [DOE]

    Delmarva Power and Light Company offers the Home Performance with Energy Star Program, which provides incentives for residential customers who have audits performed by participating contractors. ...

  18. RAPID/Geothermal/Power Plant | Open Energy Information

    Open Energy Info (EERE)

    transmission, delivery, or furnishing of light, power, heat, cold, water, gar, or oil. However, the definition of public utility does not include any user, owner, or...

  19. Dairyland Power Cooperative Comments on Smart Grid RFI: Addressing...

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

    National Consumer Law Center, and Public Citizen Comments to:DEPARTMENT OF ENERGY Smart Grid RFI: Addressing Policy and Logistical Challenges Florida Power and Light Comments on...

  20. SEPCO - Solar Electric Power Company | Open Energy Information

    Open Energy Info (EERE)

    Place: Stuart, Florida Zip: 34994 Sector: Solar Product: Commercial Solar Lighting & Off Grid Solar Power Systems Year Founded: 1994 Phone Number: 772-220-6615 Website:...

  1. WP-07 Reactive Power Supplemental Proposal (wp07/initial)

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

    This modification is necessary in light of recent FERC cases regarding generation input cost for generation supplied reactive power and voltage control. On February 13, BPA...

  2. Olkaria III Geothermal Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Type Single Flash Owner Ormat Technologies, Inc. Developer Ormat Technologies, Inc. Energy Purchaser Kenya Power and Lighting Company Limited Commercial Online Date 2014...

  3. Microsoft PowerPoint - PFM_School_Highlight-2013.pptx

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

    centers (RCs), where the initial light-induced charge separation that powers photosynthesis occurs, was determined through polarization selective ultrafast spectroscopy...

  4. Light Trapping, Absorption and Solar Energy Harvesting by Artificial

    Office of Scientific and Technical Information (OSTI)

    Materials (Technical Report) | SciTech Connect Technical Report: Light Trapping, Absorption and Solar Energy Harvesting by Artificial Materials Citation Details In-Document Search Title: Light Trapping, Absorption and Solar Energy Harvesting by Artificial Materials We provide designs of thin-film solar cells utilizing optimized photonic-crystal light-trapping and numerical simulations of their solar-to-electrical power conversion efficiencies. Authors: John, Sajeev [1] + Show Author

  5. Correcting incompatible DN values and geometric errors in nighttime lights

    Office of Scientific and Technical Information (OSTI)

    time series images (Journal Article) | SciTech Connect Correcting incompatible DN values and geometric errors in nighttime lights time series images Citation Details In-Document Search Title: Correcting incompatible DN values and geometric errors in nighttime lights time series images The Defense Meteorological Satellite Program's Operational Linescan System (DMSP-OLS) nighttime lights imagery has proven to be a powerful remote sensing tool to monitor urbanization and assess socioeconomic

  6. Solar Power

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

    Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWhsq meter power production potential As the accompanying map of ...

  7. Wind Power

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

    Wind Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe...

  8. Laser Seeding Yields High-Power Coherent Terahertz Radiation

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

    goes into a nonlinear regime where the theory breaks down. Above the MBI threshold (15 mA), the total average CSR power (red) and the power associated with the 1-kHz line...

  9. Power line detection system

    DOE Patents [OSTI]

    Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

    1994-01-01

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

  10. Power line detection system

    DOE Patents [OSTI]

    Latorre, V.R.; Watwood, D.B.

    1994-09-27

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

  11. Power supply

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul (Seminole, FL); Hamilton, Pamela Jane (Seminole, FL); Brubaker, Michael Allen (Loveland, CO)

    2007-12-04

    A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.

  12. Energy Efficiency Through Lighting Upgrades

    SciTech Connect (OSTI)

    Kara Berst; Maria Howeth

    2010-06-01

    Lighting upgrades including neon to LED, incandescent to CFL's and T-12 to T-8 and T-5's were completed through this grant. A total of 16 Chickasaw nation facilities decreased their carbon footprint because of these grant funds. Calculations used were based on comparing the energy usage from the previous year?¢????s average and the current energy usage. For facilities without a full year's set of energy bills, the month after installation was compared to the same month from the previous year. Overall, the effect the lighting change-outs had for the gaming centers and casinos far exceeded expectations. For the Madill Gaming Center; both an interior and exterior upgrade was performed which resulted in a 31% decrease in energy consumption. This same reduction was seen in every facility that participated in the grant. Just by simply changing out light bulbs to newer energy efficient equivalents, a decrease in energy usage can be achieved and this was validated by the return on investment seen at Chickasaw Nation facilities. Along with the technical project tasks were awareness sessions presented at Chickasaw Head Starts. The positive message of environmental stewardship was passed down to head start students and passed along to Chickasaw employees. Excitement was created in those that learned what they could do to help reduce their energy bills and many followed through and took the idea home. For a fairy low cost, the general public can also use this technique to lower their energy consumption both at home and at work. Although the idea behind the project was somewhat simple, true benefits have been gained through environmental awareness and reductions of energy costs.

  13. Explosively pumped laser light

    DOE Patents [OSTI]

    Piltch, Martin S. (Los Alamos, NM); Michelotti, Roy A. (Los Alamos, NM)

    1991-01-01

    A single shot laser pumped by detonation of an explosive in a shell casing. The shock wave from detonation of the explosive causes a rare gas to luminesce. The high intensity light from the gas enters a lasing medium, which thereafter outputs a pulse of laser light to disable optical sensors and personnel.

  14. Light intensity compressor

    DOE Patents [OSTI]

    Rushford, Michael C. (Livermore, CA)

    1990-01-01

    In a system for recording images having vastly differing light intensities over the face of the image, a light intensity compressor is provided that utilizes the properties of twisted nematic liquid crystals to compress the image intensity. A photoconductor or photodiode material that is responsive to the wavelength of radiation being recorded is placed adjacent a layer of twisted nematic liquid crystal material. An electric potential applied to a pair of electrodes that are disposed outside of the liquid crystal/photoconductor arrangement to provide an electric field in the vicinity of the liquid crystal material. The electrodes are substantially transparent to the form of radiation being recorded. A pair of crossed polarizers are provided on opposite sides of the liquid crystal. The front polarizer linearly polarizes the light, while the back polarizer cooperates with the front polarizer and the liquid crystal material to compress the intensity of a viewed scene. Light incident upon the intensity compressor activates the photoconductor in proportion to the intensity of the light, thereby varying the field applied to the liquid crystal. The increased field causes the liquid crystal to have less of a twisting effect on the incident linearly polarized light, which will cause an increased percentage of the light to be absorbed by the back polarizer. The intensity of an image may be compressed by forming an image on the light intensity compressor.

  15. WATER POWER SOLAR POWER WIND POWER

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

    get curren WATER POWER SOLAR POWER WIND POWER Be part of the Clean Energy Generation! YOUR HOUSE BIOMASS ENERGY GEOTHERMAL ENERGY Clean energy can come from the sun. 2 The energy in wind can make electricity. We can make energy with moving water. Bioenergy comes from plants we can turn into fuel. Logs Wood Chips Straw Corn Switchgrass We can use energy from the earth to heat and cool our homes. Check out these cool websites to learn more about clean energy! Energy Information Administration

  16. Solid-State Lighting-Lighting Facts | Department of Energy

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

    Lighting Facts Solid-State Lighting-Lighting Facts Presenter: Marc Ledbetter, Pacific Northwest National Laboratory The LED Lighting Facts program provides credible, verified performance information about light-emitting diode (LED) lighting products to retailers, utilities, specifiers, energy efficiency program sponsors, and lighting users. The goal is to enable widespread market adoption of energy-efficient LED products by removing the lack-of-information market barrier. For the solid-state

  17. 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

  18. Light sources based on semiconductor current filaments

    DOE Patents [OSTI]

    Zutavern, Fred J.; Loubriel, Guillermo M.; Buttram, Malcolm T.; Mar, Alan; Helgeson, Wesley D.; O'Malley, Martin W.; Hjalmarson, Harold P.; Baca, Albert G.; Chow, Weng W.; Vawter, G. Allen

    2003-01-01

    The present invention provides a new type of semiconductor light source that can produce a high peak power output and is not injection, e-beam, or optically pumped. The present invention is capable of producing high quality coherent or incoherent optical emission. The present invention is based on current filaments, unlike conventional semiconductor lasers that are based on p-n junctions. The present invention provides a light source formed by an electron-hole plasma inside a current filament. The electron-hole plasma can be several hundred microns in diameter and several centimeters long. A current filament can be initiated optically or with an e-beam, but can be pumped electrically across a large insulating region. A current filament can be produced in high gain photoconductive semiconductor switches. The light source provided by the present invention has a potentially large volume and therefore a potentially large energy per pulse or peak power available from a single (coherent) semiconductor laser. Like other semiconductor lasers, these light sources will emit radiation at the wavelength near the bandgap energy (for GaAs 875 nm or near infra red). Immediate potential applications of the present invention include high energy, short pulse, compact, low cost lasers and other incoherent light sources.

  19. 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

  20. 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