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  1. Elba Island, GA Liquefied Natural Gas Imports from Qatar (Million...

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

    Liquefied Natural Gas Imports from Qatar (Million Cubic Feet) Elba Island, GA Liquefied Natural Gas Imports from Qatar (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep...

  2. Elba Island, GA Natural Gas Liquefied Natural Gas Imports from...

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

    Egypt (Million Cubic Feet) Elba Island, GA Natural Gas Liquefied Natural Gas Imports from Egypt (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 5,780 ...

  3. Mismatch relaxation by stacking fault formation of AlN islands in AlGaN/GaN structures on m-plane GaN substrates

    SciTech Connect (OSTI)

    Smalc-Koziorowska, Julita; Sawicka, Marta; Skierbiszewski, Czeslaw; Grzegory, Izabella

    2011-08-08

    We study the mismatch relaxation of 2-5 nm thin elongated AlN islands formed during growth of AlGaN on bulk m-plane GaN by molecular beam epitaxy. The relaxation of these m-plane AlN layers is anisotropic and occurs through the introduction of stacking faults in [0001] planes during island coalescence, while no relaxation is observed along the perpendicular [1120] direction. This anisotropy in the mismatch relaxation and the formation of stacking faults in the AlN islands are explained by the growth mode of the AlN platelets and their coalescence along the [0001] direction.

  4. Elba Island, GA Liquefied Natural Gas Total Imports (Million Cubic Feet)

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

    Total Imports (Million Cubic Feet) Elba Island, GA Liquefied Natural Gas Total Imports (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2014 3,066 367 1,939 1,784 2015 2,847 3,010 3,004 2,925 2016 2,877 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016 Referring Pages: U.S. Liquefied Natural Gas Imports by Point of Entry Elba Island, GA LNG

  5. Price of Elba Island, GA Natural Gas LNG Imports from Equatorial Guinea

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

    (Dollars per Thousand Cubic Feet) Equatorial Guinea (Dollars per Thousand Cubic Feet) Price of Elba Island, GA Natural Gas LNG Imports from Equatorial Guinea (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- 6.11 -- -- 2010's -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016 Referring Pages:

  6. Price of Elba Island, GA Natural Gas LNG Imports from Nigeria (Nominal

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

    Dollars per Thousand Cubic Feet) Nigeria (Nominal Dollars per Thousand Cubic Feet) Price of Elba Island, GA Natural Gas LNG Imports from Nigeria (Nominal Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- 11.69 -- -- 9.93 -- 2010's -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016

  7. Elba Island, GA Natural Gas Liquefied Natural Gas Imports from Trinidad and

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

    Tobago (Million Cubic Feet) Trinidad and Tobago (Million Cubic Feet) Elba Island, GA Natural Gas Liquefied Natural Gas Imports from Trinidad and Tobago (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 5,460 2,814 5,061 2,907 2,790 2,730 2012 2,854 2,881 2,790 2,862 2,834 2,849 5,562 2013 2,868 2,719 2,669 2014 3,066 367 1,939 1,784 2015 2,847 3,010 3,004 2,925 2016 2,877 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  8. ISLANDER

    Energy Science and Technology Software Center (OSTI)

    003251WKSTN00 Genomic Island Identification Software v 1.0 http://bioinformatics.sandia.gov/software

  9. Alaska Open-file Report 144 Assessment of Thermal Springs Sites Aleutian Arc, Atka Island to Becherof Lake -- Preliminary Results and Evaluation

    SciTech Connect (OSTI)

    Motyka, R.J.; Moorman, M.A.; Liss, S.A.

    1981-12-01

    Twenty of more than 30 thermal spring areas reported to exist in the Aleutian arc extending from Atka Island to Becherof Lake were investigated during July and August, 1980. Thermal activity of three of these sites had diminished substantially or no longer existed. At least seven more sites where thermal-spring activity is probable or certain were not visited because of their remoteness or because of time constraints. The existence of several other reported thermal spring sites could not be verified; these sites are considered questionable. On the basis of geothermometry, subsurface reservoir temperatures in excess of 150 C are estimated for 10 of the thermal spring sites investigated. These sites all occur in or near regions of Recent volcanism. Five of the sites are characterized by fumaroles and steaming ground, indicating the presence of at least a shallow vapor-dominated zone. Two, the Makushin Valley and Glacier Valley thermal areas, occur on the flanks of active Mukushin Volcano located on Unalaska Island, and may be connected to a common source of heat. Gas geothermometry suggests that the reservoir feeding the Kliuchef thermal field, located on the flanks of Kliuchef volcano of northeast Atka Island, may be as high as 239 C.

  10. Energy savings for heat-island reduction strategies in Chicago and Houston (including updates for Baton Rouge, Sacramento, and Salt Lake City)

    SciTech Connect (OSTI)

    Konopacki, S.; Akbari, H.

    2002-02-28

    In 1997, the U.S. Environmental Protection Agency (EPA) established the ''Heat Island Reduction Initiative'' to quantify the potential benefits of Heat-Island Reduction (HIR) strategies (i.e., shade trees, reflective roofs, reflective pavements and urban vegetation) to reduce cooling-energy use in buildings, lower the ambient air temperature and improve urban air quality in cities, and reduce CO2 emissions from power plants. Under this initiative, the Urban Heat Island Pilot Project (UHIPP) was created with the objective of investigating the potential of HIR strategies in residential and commercial buildings in three initial UHIPP cities: Baton Rouge, LA; Sacramento, CA; and Salt Lake City, UT. Later two other cities, Chicago, IL and Houston, TX were added to the UHIPP. In an earlier report we summarized our efforts to calculate the annual energy savings, peak power avoidance, and annual CO2 reduction obtainable from the introduction of HIR strategies in the initial three cities. This report summarizes the results of our study for Chicago and Houston. In this analysis, we focused on three building types that offer the highest potential savings: single-family residence, office and retail store. Each building type was characterized in detail by vintage and system type (i.e., old and new building constructions, and gas and electric heat). We used the prototypical building characteristics developed earlier for each building type and simulated the impact of HIR strategies on building cooling- and heating-energy use and peak power demand using the DOE-2.1E model. Our simulations included the impact of (1) strategically-placed shade trees near buildings [direct effect], (2) use of high-albedo roofing material on the building [direct effect], (3) urban reforestation with high-albedo pavements and building surfaces [indirect effect] and (4) combined strategies 1, 2, and 3 [direct and indirect effects]. We then estimated the total roof area of air-conditioned buildings in

  11. Island Wide Management Corporation

    Office of Legacy Management (LM)

    9 1986 Island Wide Management Corporation 3000 Marcus Avenue Lake Success, New York 11042 Dear Sir or Madam: I am sending you this letter and the enclosed information as you have been identified by L. I. Trinin of Glick Construction Company as the representatives of the owners of the property that was formerly the site of the Sylvania-Corning Nuclear Corporation in Bayside, New York. The Department of Energy is evaluating the radiological condition of sites that were utilized under the Manhattan

  12. FUPWG Meeting Agenda - Jekyll Island, Georgia | Department of...

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

    FUPWG Meeting Agenda - Jekyll Island, Georgia Logo for the FUPWG Spring 2012 meeting showing a crane, a lake, and wind turbines. The logo reads: Preserving our future with energy ...

  13. US Virgin Islands-Energy Development in Island Nations (EDIN...

    Open Energy Info (EERE)

    US Virgin Islands-Energy Development in Island Nations (EDIN) Pilot Project Jump to: navigation, search Logo: US Virgin Islands-Energy Development in Island Nations (EDIN) Pilot...

  14. Growth mechanisms of GaSb heteroepitaxial films on Si with an AlSb buffer layer

    SciTech Connect (OSTI)

    Vajargah, S. Hosseini; Botton, G. A.; Brockhouse Institute for Materials Research, McMaster University, Hamilton, Ontario L8S 4M1; Canadian Centre for Electron Microscopy, McMaster University, Hamilton, Ontario L8S 4M1 ; Ghanad-Tavakoli, S.; Preston, J. S.; Kleiman, R. N.; Centre for Emerging Device Technologies, McMaster University, Hamilton, Ontario L8S 4L7; Department of Engineering Physics, McMaster University, Hamilton, Ontario L8S 4L7

    2013-09-21

    The initial growth stages of GaSb epilayers on Si substrates and the role of the AlSb buffer layer were studied by high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). Heteroepitaxy of GaSb and AlSb on Si both occur by Volmer-Weber (i.e., island mode) growth. However, the AlSb and GaSb islands have distinctly different characteristics as revealed through an atomic-resolution structural study using Z-contrast of HAADF-STEM imaging. While GaSb islands are sparse and three dimensional, AlSb islands are numerous and flattened. The introduction of 3D island-forming AlSb buffer layer facilitates the nucleation of GaSb islands. The AlSb islands-assisted nucleation of GaSb islands results in the formation of drastically higher quality planar film at a significantly smaller thickness of films. The interface of the AlSb and GaSb epilayers with the Si substrate was further investigated with energy dispersive X-ray spectrometry to elucidate the key role of the AlSb buffer layer in the growth of GaSb epilayers on Si substrates.

  15. Andrew Lake

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

    Andrew Lake About ESnet Our Mission The Network ESnet History Governance & Policies Career Opportunities ESnet Staff & Org Chart ESnet Leadership Administration Advanced Network Technologies Cybersecurity Infrastructure, Identity & Collaboration Network Engineering Network Planning Operational Enhancements Office of the CTO Science Engagement Tools Team Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1

  16. Red Lake Weatherization Project

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

    REVIEW RED LAKE WEATHERIZATION PROJECT BERT VAN WERT ENERGY ACTIVITIES COORDINATOR Project Overview To develop the capacity to conduct energy audits Implement energy efficiency measures into Tribal homes Develop a Tribally administered Energy Efficiency Program and business PROJECT LOCATION Our project is located at Red Lake Housing Authority Red Lake Band of Chippewa Indians Red Lake , MN Red Lake Band of Chippewas Area overview Reservation (Diminished Lands) and Surroundings Red Lake Band of

  17. San Miguel Island, Channel Islands National Park, California | Department

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

    of Energy Miguel Island, Channel Islands National Park, California San Miguel Island, Channel Islands National Park, California Photo of Wind/Photovoltaic Power System at San Miguel Island San Miguel Island is one of five islands that make up Channel Islands National Park on the coast of southern California. The islands comprise 249,353 acres (100,910 hectares) of land and ocean that teems with terrestrial and marine life. The National Park Service (NPS) protects the pristine resources at

  18. Monhegan Island | Open Energy Information

    Open Energy Info (EERE)

    Island Jump to: navigation, search Name Monhegan Island Facility Monhegan Island Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Maine State Dept of...

  19. Washington County, Rhode Island: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Rhode Island Bradford, Rhode Island Charlestown, Rhode Island Exeter, Rhode Island Hope Valley, Rhode Island Hopkinton, Rhode Island Kingston, Rhode Island Narragansett Pier,...

  20. Island Energy Conference

    Broader source: Energy.gov [DOE]

    The sixth annual Island Energy Conference will include speakers and panels on Friday, November 6, and a site visit to Star Island, New Hampshire, that hosts Northern New England’s largest offshore...

  1. Arctic ice islands

    SciTech Connect (OSTI)

    Sackinger, W.M.; Jeffries, M.O.; Lu, M.C.; Li, F.C.

    1988-01-01

    The development of offshore oil and gas resources in the Arctic waters of Alaska requires offshore structures which successfully resist the lateral forces due to moving, drifting ice. Ice islands are floating, a tabular icebergs, up to 60 meters thick, of solid ice throughout their thickness. The ice islands are thus regarded as the strongest ice features in the Arctic; fixed offshore structures which can directly withstand the impact of ice islands are possible but in some locations may be so expensive as to make oilfield development uneconomic. The resolution of the ice island problem requires two research steps: (1) calculation of the probability of interaction between an ice island and an offshore structure in a given region; and (2) if the probability if sufficiently large, then the study of possible interactions between ice island and structure, to discover mitigative measures to deal with the moving ice island. The ice island research conducted during the 1983-1988 interval, which is summarized in this report, was concerned with the first step. Monte Carlo simulations of ice island generation and movement suggest that ice island lifetimes range from 0 to 70 years, and that 85% of the lifetimes are less then 35 years. The simulation shows a mean value of 18 ice islands present at any time in the Arctic Ocean, with a 90% probability of less than 30 ice islands. At this time, approximately 34 ice islands are known, from observations, to exist in the Arctic Ocean, not including the 10-meter thick class of ice islands. Return interval plots from the simulation show that coastal zones of the Beaufort and Chukchi Seas, already leased for oil development, have ice island recurrences of 10 to 100 years. This implies that the ice island hazard must be considered thoroughly, and appropriate safety measures adopted, when offshore oil production plans are formulated for the Alaskan Arctic offshore. 132 refs., 161 figs., 17 tabs.

  2. Island Energy Snapshots

    Broader source: Energy.gov [DOE]

    These energy snapshots highlight the energy landscape of islands in the Caribbean, the Pacific, and the surrounding area.

  3. Bainbridge Island Data Dashboard

    Broader source: Energy.gov [DOE]

    The data dashboard for Bainbridge Island, a partner in the U.S. Department of Energy's Better Buildings Neighborhood Program.

  4. Defect reduction in epitaxial GaSb grown on nanopatterned GaAs substrates using full wafer block copolymer lithography

    SciTech Connect (OSTI)

    Jha, Smita; Liu, C.-C.; Nealey, P. F.; Kuech, T. F.; Kuan, T. S.; Babcock, S. E.; Park, J. H.; Mawst, L. J.

    2009-08-10

    Defect reduction in the large lattice mismatched system of GaSb on GaAs, {approx}7%, was accomplished using full wafer block copolymer (BCP) lithography. A self-assembled BCP mask layer was used to generate a hexagonal pattern of {approx}20 nm holes on {approx}40 nm centers in a 20 nm SiO{sub 2} layer. GaSb growth initially takes place selectively within these holes leading to a dense array of small, strain-relaxed epitaxial GaSb islands. The GaSb grown on the patterned SiO{sub 2} layer exhibits a reduction in the x-ray linewidth attributed to a decrease in the threading dislocation density when compared to blanket pseudomorphic film growth.

  5. Lakes, Electricity and You | Department of Energy

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

    Lakes, Electricity and You Lakes, Electricity and You Why It's So Important That Lakes Are Used To Generate Electricity PDF icon Lakes, Electricity and You More Documents & ...

  6. InGaAs/GaAs (110) quantum dot formation via step meandering

    SciTech Connect (OSTI)

    Diez-Merino, Laura; Tejedor, Paloma

    2011-07-01

    InGaAs (110) semiconductor quantum dots (QDs) offer very promising prospects as a material base for a new generation of high-speed spintronic devices, such as single electron transistors for quantum computing. However, the spontaneous formation of InGaAs QDs is prevented by two-dimensional (2D) layer-by-layer growth on singular GaAs (110) substrates. In this work we have studied, by using atomic force microscopy and photoluminescence spectroscopy (PL), the growth of InGaAs/GaAs QDs on GaAs (110) stepped substrates by molecular beam epitaxy (MBE), and the modification of the adatom incorporation kinetics to surface steps in the presence of chemisorbed atomic hydrogen. The as-grown QDs exhibit lateral dimensions below 100 nm and emission peaks in the 1.35-1.37 eV range. It has been found that a step meandering instability derived from the preferential attachment of In adatoms to [110]-step edges relative to [11n]-type steps plays a key role in the destabilization of 2D growth that leads to 3D mound formation on both conventional and H-terminated vicinal substrates. In the latter case, the driving force for 3D growth via step meandering is enhanced by H-induced upward mass transport in addition to the lower energy cost associated with island formation on H-terminated substrates, which results in a high density array of InGaAs/GaAs dots selectively nucleated on the terrace apices with reduced lateral dimensions and improved PL efficiency relative to those of conventional MBE-grown samples.

  7. Island Boundaries, Hawaii

    SciTech Connect (OSTI)

    Nicole Lautze

    2015-01-01

    Outline of Hawaiian islands (Kauai, Oahu, Molokai, Kahoolawe, Lanai, Maui, Hawaii) generated from the Geologic Map of the State of Hawaii published by the USGS in 2007.

  8. Lakes_Elec_You

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

    of federal hydroelectric dams, and sold the power from the dams under long-term contracts. ... Sometimes special interest groups oppose the use of lakes for hydropower generation. ...

  9. San Clemente Island, Channel Islands National Park, California...

    Energy Savers [EERE]

    San Clemente Island, Channel Islands National Park, California Photo of Wind Turbine on ... Management Program (FEMP). A third turbine was installed in 1999, allowing the wind ...

  10. TWP Island Cloud Trail Studies

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

    These island cloud trails have been observed from both the islands of Nauru and Manus, Papua New Guinea. Figure 2 shows an island cloud at Manus observed from MTI and from the ...

  11. Basaltic island sand provenance

    SciTech Connect (OSTI)

    Marsaglia, K.M. . Dept. of Geological Sciences)

    1992-01-01

    The Hawaiian Islands are an ideal location to study basaltic sand provenance in that they are a series of progressively older basaltic shield volcanoes with arid to humid microclimates. Sixty-two sand samples were collected from beaches on the islands of Hawaii, Maui, Oahu and Kauai and petrographically analyzed. The major sand components are calcareous bioclasts, volcanic lithic fragments, and monomineralic grains of dense minerals and plagioclase. Proportions of these components vary from island to island, with bioclastic end members being more prevalent on older islands exhibiting well-developed fringing reef systems and volcanic end members more prevalent on younger, volcanically active islands. Climatic variations across the island of Hawaii are reflected in the percentage of weathered detritus, which is greater on the wetter, northern side of the island. The groundmass of glassy, basaltic lithics is predominantly black tachylite, with lesser brown sideromelane; microlitic and lathwork textures are more common than holohyaline vitric textures. Other common basaltic volcanic lithic fragments are holocrystalline aggregates of silt-sized pyroxene or olivine, opaque minerals and plagioclase. Sands derived from alkalic lavas are texturally and compositionally indistinguishable from sands derived from tholeiitic lavas. Although Hawaiian basaltic sands overlap in composition with magmatic arc-derived sands in terms of their relative QFL, QmPK and LmLvLs percentages, they are dissimilar in that they lack felsic components and are more enriched in lathwork volcanic lithic fragments, holocrystalline volcanic lithic fragments, and dense minerals.

  12. Pyramid Lake Paiute Tribe - Pyramid Lake Energy Project - Geothermal Assessment

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

    Tribe Pyramid Lake Paiute Tribe Pyramid Lake Energy Project Pyramid Lake Energy Project Geothermal Assessment Geothermal Assessment Pyramid Lake Paiute Reservation 40 miles north of Reno 475,000 acres Pyramid Lake 125,000 surface acres Northern Reservation Needles Area Needles Geyser Needles Geyser Exploration conducted Exploration conducted in 1968 in 1968 Hot water was found Hot water was found at 160 degrees f at 160 degrees f Was not considered Was not considered feasible feasible PLEP

  13. Degradation mechanisms of Ti/Al/Ni/Au-based Ohmic contacts on AlGaN/GaN HEMTs

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

    Hwang, Ya-Hsi; Ahn, Shihyun; Dong, Chen; Zhu, Weidi; Kim, Byung-Jae; Le, Lingcong; Ren, Fan; Lind, Aaron G.; Dahl, James; Jones, Kevin S.; et al

    2015-04-27

    We investigated the degradation mechanism of Ti/Al/Ni/Au-based Ohmic metallization on AlGaN/GaN high electron mobility transistors upon exposure to buffer oxide etchant (BOE). The major effect of BOE on the Ohmic metal was an increase of sheet resistance from 2.89 to 3.69 Ω/ₜafter 3 min BOE treatment. The alloyed Ohmic metallization consisted 3–5 μm Ni-Al alloy islands surrounded by Au-Al alloy-rings. The morphology of both the islands and ring areas became flatter after BOE etching. Lastly, we used energy dispersive x-ray analysis and Auger electron microscopy to analyze the compositions and metal distributions in the metal alloys prior to and aftermore » BOE exposure.« less

  14. United States Virgin Islands: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Rebate Program (Virgin Islands) U.S. Virgin Islands - Energy Efficiency Residential Rebates (Virgin Islands) U.S. Virgin Islands - Net Metering (Virgin Islands) U.S. Virgin...

  15. PSEG Long Island- Renewable Electricity Goal

    Broader source: Energy.gov [DOE]

    NOTE: As of January 1, 2014, Long Island is served by PSEG Long Island, replacing Long Island Power Authority (LIPA). Long Island Renewable Energy goal ended in 2013, and currently does not have...

  16. Long Island Solar Farm

    SciTech Connect (OSTI)

    Anders, R.

    2013-05-01

    The Long Island Solar Farm (LISF) is a remarkable success story, whereby very different interest groups found a way to capitalize on unusual circumstances to develop a mutually beneficial source of renewable energy. The uniqueness of the circumstances that were necessary to develop the Long Island Solar Farm make it very difficult to replicate. The project is, however, an unparalleled resource for solar energy research, which will greatly inform large-scale PV solar development in the East. Lastly, the LISF is a superb model for the process by which the project developed and the innovation and leadership shown by the different players.

  17. General Atomics (GA) | Princeton Plasma Physics Lab

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

    General Atomics (GA) Subscribe to RSS - General Atomics (GA) General Atomics Image: General Atomics (GA) The Scorpion's Strategy: "Catch and Subdue" Read more about The Scorpion's...

  18. DOE - Office of Legacy Management -- Salt_Lake

    Office of Legacy Management (LM)

    Salt_Lake Salt Lake City Sites ut_map Salt Lake City Disposal Site Salt Lake City Processing Site Last Updated: 12/14/2015

  19. Origins of interlayer formation and misfit dislocation displacement in the vicinity of InAs/GaAs quantum dots

    SciTech Connect (OSTI)

    Huang, S.; Kim, S. J.; Pan, X. Q.; Goldman, R. S.

    2014-07-21

    We have examined the origins of interlayer formation and misfit dislocation (MD) displacement in the vicinity of InAs/GaAs quantum dots (QDs). For QDs formed by the Stranski-Krastanov mode, regularly spaced MDs nucleate at the interface between the QD and the GaAs buffer layer. In the droplet epitaxy case, both In island formation and In-induced “nano-drilling” of the GaAs buffer layer are observed during In deposition. Upon annealing under As flux, the In islands are converted to InAs QDs, with an InGaAs interlayer at the QD/buffer interface. Meanwhile, MDs nucleate at the QD/interlayer interface.

  20. Geological History of Lake Lahontan, a Quaternary Lake of Northwestern...

    Open Energy Info (EERE)

    a Quaternary Lake of Northwestern Nevada Abstract Abstract unavailable. Author Israel C. Russell Organization U.S. Geological Survey Published U.S. Government Printing...

  1. Great Lakes Energy Institute

    SciTech Connect (OSTI)

    Alexander, J. Iwan

    2012-11-18

    The vision of the Great Lakes Energy Institute is to enable the transition to advanced, sustainable energy generation, storage, distribution and utilization through coordinated research, development, and education. The Institute will place emphasis on translating leading edge research into next generation energy technology. The Institute’s research thrusts focus on coordinated research in decentralized power generation devices (e.g. fuel cells, wind turbines, solar photovoltaic devices), management of electrical power transmission and distribution, energy storage, and energy efficiency.

  2. Method for lake restoration

    DOE Patents [OSTI]

    Dawson, Gaynor W.; Mercer, Basil W.

    1979-01-01

    A process for removing pollutants or minerals from lake, river or ocean sediments or from mine tailings is disclosed. Magnetically attractable collection units containing an ion exchange or sorbent media with an affinity for a chosen target substance are distributed in the sediments or tailings. After a period of time has passed sufficient for the particles to bind up the target substances, a magnet drawn through the sediments or across the tailings retrieves the units along with the target substance.

  3. AMF Deployment, Graciosa Island, Azores

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

    Graciosa Island Home Data Plots and Baseline Instruments Satellite Retrievals Experiment Planning CAP-MBL Proposal Abstract and Related Campaigns Science Questions Science Plan...

  4. Lake Charles CCS Project

    SciTech Connect (OSTI)

    Leib, Thomas; Cole, Dan

    2015-06-30

    In late September 2014 development of the Lake Charles Clean Energy (LCCE) Plant was abandoned resulting in termination of Lake Charles Carbon Capture and Sequestration (CCS) Project which was a subset the LCCE Plant. As a result, the project was only funded through Phase 2A (Design) and did not enter Phase 2B (Construction) or Phase 2C (Operations). This report was prepared relying on information prepared and provided by engineering companies which were engaged by Leucadia Energy, LLC to prepare or review Front End Engineering and Design (FEED) for the Lake Charles Clean Energy Project, which includes the Carbon Capture and Sequestration (CCS) Project in Lake Charles, Louisiana. The Lake Charles Carbon Capture and Sequestration (CCS) Project was to be a large-scale industrial CCS project intended to demonstrate advanced technologies that capture and sequester carbon dioxide (CO2) emissions from industrial sources into underground formations. The Scope of work was divided into two discrete sections; 1) Capture and Compression prepared by the Recipient Leucadia Energy, LLC, and 2) Transport and Sequestration prepared by sub-Recipient Denbury Onshore, LLC. Capture and Compression-The Lake Charles CCS Project Final Technical Report describes the systems and equipment that would be necessary to capture CO2 generated in a large industrial gasification process and sequester the CO2 into underground formations. The purpose of each system is defined along with a description of its equipment and operation. Criteria for selection of major equipment are provided and ancillary utilities necessary for safe and reliable operation in compliance with environmental regulations are described. Construction considerations are described including a general arrangement of the CCS process units within the overall gasification project. A cost estimate is provided, delineated by system area with cost breakdown showing equipment, piping and materials

  5. Blue Lake Power | Open Energy Information

    Open Energy Info (EERE)

    Power Jump to: navigation, search Name: Blue Lake Power Place: Redding, California Zip: 96001 Sector: Renewable Energy Product: Blue Lake Power is a wholey owned subsidiary of...

  6. Lake Region State College | Open Energy Information

    Open Energy Info (EERE)

    College Jump to: navigation, search Name Lake Region State College Facility Lake Region State College Sector Wind energy Facility Type Community Wind Facility Status In Service...

  7. Lake Erie Alternative Power | Open Energy Information

    Open Energy Info (EERE)

    Power Jump to: navigation, search Name Lake Erie Alternative Power Facility Lake Erie Alternative Power Sector Wind energy Facility Type Offshore Wind Facility Status Proposed...

  8. Meadow Lake II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Meadow Lake II Facility Meadow Lake II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon Wind...

  9. Crow Lake Wind | Open Energy Information

    Open Energy Info (EERE)

    Wind Jump to: navigation, search Name Crow Lake Wind Facility Crow Lake Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Prairie Winds...

  10. Iowa Lakes Electric Cooperative | Open Energy Information

    Open Energy Info (EERE)

    Iowa Lakes Electric Cooperative Jump to: navigation, search Name: Iowa Lakes Electric Cooperative Place: Estherville, Iowa Zip: 51334 Sector: Wind energy Product: Iowa-based...

  11. Summer Lake Aquaculture Aquaculture Low Temperature Geothermal...

    Open Energy Info (EERE)

    Summer Lake Aquaculture Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Summer Lake Aquaculture Aquaculture Low Temperature Geothermal Facility...

  12. Enjebi Island dose assessment

    SciTech Connect (OSTI)

    Robison, W.L.; Conrado, C.L.; Phillips, W.A.

    1987-07-01

    We have updeated the radiological dose assessment for Enjebi Island at Enewetak Atoll using data derived from analysis of food crops grown on Enjebi. This is a much more precise assessment of potential doses to people resettling Enjebi Island than the 1980 assessment in which there were no data available from food crops on Enjebi. Details of the methods and data used to evaluate each exposure pathway are presented. The terrestrial food chain is the most significant potential exposure pathway and /sup 137/Cs is the radionuclide responsible for most of the estimated dose over the next 50 y. The doses are calculated assuming a resettlement date of 1990. The average wholebody maximum annual estimated dose equivalent derived using our diet model is 166 mremy;the effective dose equivalent is 169 mremy. The estimated 30-, 50-, and 70-y integral whole-body dose equivalents are 3.5 rem, 5.1 rem, and 6.2 rem, respectively. Bone-marrow dose equivalents are only slightly higher than the whole-body estimates in each case. The bone-surface cells (endosteal cells) receive the highest dose, but they are a less sensitive cell population and are less sensitive to fatal cancer induction than whole body and bone marrow. The effective dose equivalents for 30, 50, and 70 y are 3.6 rem, 5.3 rem, and 6.6 rem, respectively. 79 refs., 17 figs., 24 tabs

  13. Fox Islands Wind Project | Open Energy Information

    Open Energy Info (EERE)

    Fox Islands Electric Cooperative Location Vinalhaven Island ME Coordinates 44.088391, -68.857802 Show Map Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":...

  14. University of Rhode Island | Open Energy Information

    Open Energy Info (EERE)

    Testing Facilities Name University of Rhode Island Address Department of Ocean Engineering, Sheets Building, Bay Campus Place Narragansett, Rhode Island Zip 02882 Sector...

  15. Hainan Green Islands Power | Open Energy Information

    Open Energy Info (EERE)

    Green Islands Power Jump to: navigation, search Name: Hainan Green Islands Power Place: Hainan Province, China Sector: Solar Product: China-based JV developing on-grid solar...

  16. Grey Island Energy Inc | Open Energy Information

    Open Energy Info (EERE)

    Grey Island Energy Inc Jump to: navigation, search Name: Grey Island Energy Inc Address: Suite 3003 Inco Innovation Centre Memorial University of Newfoundland PO Box 4200 Place: St...

  17. Island Energy Solutions | Open Energy Information

    Open Energy Info (EERE)

    search Name: Island Energy Solutions Place: Kailua, Hawaii Zip: 96734 Product: Island Energy Solutions, Inc. is an electrical contracting company, based out of Kailua, Oahu,...

  18. Island Energy Snapshots | Department of Energy

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

    islands around the globe, the featured islands are heavily reliant on fossil fuels for electricity generation, leaving them vulnerable to global oil price fluctuations that...

  19. MWRA Deer Island Wind | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name MWRA Deer Island Wind Facility MWRA Deer Island Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner MWRA Deer...

  20. PYRAMID LAKE RENEWEABLE ENERGY PLAN

    SciTech Connect (OSTI)

    HIGH DESERT GEOCULTURE, LLC

    2009-06-06

    The Pyramid Lake Renewable Energy Plan covers these areas: energy potential (primarily focusing on geothermal resource potential, but also more generally addressing wind energy potential); renewable energy market potential; transmission system development; geothermal direct use potential; and business structures to accomplish the development objectives of the Pyramid Lake Paiute Tribe.

  1. Investigation of the GaN-on-GaAs interface for vertical power device applications

    SciTech Connect (OSTI)

    Mreke, Janina Uren, Michael J.; Kuball, Martin; Novikov, Sergei V.; Foxon, C. Thomas; Hosseini Vajargah, Shahrzad; Wallis, David J.; Humphreys, Colin J.; Haigh, Sarah J.; Al-Khalidi, Abdullah; Wasige, Edward; Thayne, Iain

    2014-07-07

    GaN layers were grown onto (111) GaAs by molecular beam epitaxy. Minimal band offset between the conduction bands for GaN and GaAs materials has been suggested in the literature raising the possibility of using GaN-on-GaAs for vertical power device applications. I-V and C-V measurements of the GaN/GaAs heterostructures however yielded a rectifying junction, even when both sides of the junction were heavily doped with an n-type dopant. Transmission electron microscopy analysis further confirmed the challenge in creating a GaN/GaAs Ohmic interface by showing a large density of dislocations in the GaN layer and suggesting roughening of the GaN/GaAs interface due to etching of the GaAs by the nitrogen plasma, diffusion of nitrogen or melting of Ga into the GaAs substrate.

  2. Growth modes of InN(000-1) on GaN buffer layers on sapphire

    SciTech Connect (OSTI)

    Liu, Bing; Kitajima, Takeshi; Chen, Dongxue; Leone, Stephen R.

    2005-01-24

    In this work, using atomic force microscopy and scanning tunneling microscopy, we study the surface morphologies of epitaxial InN films grown by plasma-assisted molecular beam epitaxy with intervening GaN buffer layers on sapphire substrates. On smooth GaN buffer layers, nucleation and evolution of three-dimensional InN islands at various coverages and growth temperatures are investigated. The shapes of the InN islands are observed to be predominantly mesa-like with large flat (000-1) tops, which suggests a possible role of indium as a surfactant. Rough GaN buffer layers composed of dense small GaN islands are found to significantly improve uniform InN wetting of the substrates, on which atomically smooth InN films are obtained that show the characteristics of step-flow growth. Scanning tunneling microscopy imaging reveals the defect-mediated surface morphology of smooth InN films, including surface terminations of screw dislocations and a high density of shallow surface pits with depths less than 0.3 nm. The mechanisms of the three-dimensional island size and shape evolution and formation of defects on smooth surfaces are considered.

  3. GA SNC Solar | Open Energy Information

    Open Energy Info (EERE)

    GA-SNC Solar Place: Nevada Sector: Solar Product: Nevada-based PV project developer and joint venture of GA-Solar North America and Sierra Nevada Corp. References: GA-SNC...

  4. EIS-0006: Wind Turbine Generator System, Block Island, Rhode Island

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy prepared this EIS to evaluate the environmental impacts of installing and operating a large experimental wind turbine, designated the MOD-OA, which is proposed to be installed on a knoll in Rhode Island's New Meadow Hill Swamp, integrated with the adjacent Block Island Power Company power plant and operated to supply electricity to the existing utility network.

  5. Pyramid Lake Paiute Tribe - Geothermal Energy Assessment

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

    Tribe Geothermal Energy Project Donna Marie Noel Project Manager Water Resources Department (775) 574-0101 x16 dnoel@plpt.nsn.us GEOTHERMAL RESOURCES Bonham Ranch Sutcliffe Pyramid Rock Astor Pass Needles Rocks Pyramid Lake Paiute Reservation PYRAMID LAKE PAIUTE TRIBE * Largest Nevada Reservation in land base and population, 2300 members * Reservation encompasses 470,000 acres & 330,000 acres cattle range * Pyramid Lake 115,000 acre lake surface * Terminus lake with Truckee River connector

  6. City of Detroit Lakes, Minnesota (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    Lakes, Minnesota (Utility Company) Jump to: navigation, search Name: City of Detroit Lakes Place: Minnesota Website: www.ci.detroit-lakes.mn.usmai Facebook: https:...

  7. Fish Lake Valley Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Fish Lake Valley Geothermal Area (Redirected from Fish Lake Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Fish Lake Valley Geothermal Area Contents 1...

  8. Spirit Lake II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Lake School District Energy Purchaser Spirit Lake School District Location Spirit Lake IA Coordinates 43.411412, -95.09914 Show Map Loading map... "minzoom":false,"mappingse...

  9. Iowa Lakes Superior Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    search Name Iowa Lakes Superior Wind Farm Facility Iowa Lakes Superior Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Iowa Lakes...

  10. Iowa Lakes Lakota Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    search Name Iowa Lakes Lakota Wind Farm Facility Iowa Lakes Lakota Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Iowa Lakes...

  11. NBP RFI: Communications Requirements- Comments of Lake Region...

    Energy Savers [EERE]

    Lake Region Electric Cooperative- Minnesota NBP RFI: Communications Requirements- Comments of Lake Region Electric Cooperative- Minnesota Comments of Lake Region Electric ...

  12. Hot Lake RV Park Space Heating Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Lake RV Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hot Lake RV Park Space Heating Low Temperature Geothermal Facility Facility Hot Lake...

  13. Soap Lake Pool & Spa Low Temperature Geothermal Facility | Open...

    Open Energy Info (EERE)

    Soap Lake Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Soap Lake Pool & Spa Low Temperature Geothermal Facility Facility Soap Lake Sector...

  14. Island Gas | Open Energy Information

    Open Energy Info (EERE)

    United Kingdom Zip: W1J 7BU Sector: Renewable Energy Product: UK-based coal bed methane company, Island Gas was the subject of a reverse takeover by KP Renewables in...

  15. Lessons Learned in Islands | Department of Energy

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

    Energy Transition Initiative » Lessons Learned in Islands Lessons Learned in Islands Hawai'i, the U.S. Virgin Islands, and other island communities have successfully implemented renewable energy and energy efficiency technologies to decrease their reliance on fossil fuels and achieve sustainability, economic development, and other goals. Read how in these lessons learned, which are also featured in the Islands Energy Playbook. Assessing Pathways in Aruba Learn how Aruba developed an actionable

  16. Spirit Lake Tribe- 1995 Project

    Office of Energy Efficiency and Renewable Energy (EERE)

    A long-range goal of the Spirit Lake Nation is to develop a tribally owned and operated municipal power company. The tribe has been awarded a Western Area Power Administration (WAPA) allocation starting in the year 2001.

  17. GaInNAs laser gain

    SciTech Connect (OSTI)

    CHOW,WENG W.; JONES,ERIC D.; MODINE,NORMAND A.; KURTZ,STEVEN R.; ALLERMAN,ANDREW A.

    2000-05-23

    The optical gain spectra for GaInNAs/GaAs quantum wells are computed using a microscopic laser theory. From these spectra, the peak gain and carrier radiative decay rate as functions of carrier density are determined. These dependences allow the study of the lasing threshold current density of GaInNAs/GaAs quantum well structures.

  18. Long Island Power Authority Solar Project | Open Energy Information

    Open Energy Info (EERE)

    Long Island Power Authority Solar Project Jump to: navigation, search Name Long Island Power Authority Solar Project Facility Long Island Power Authority Solar Project Sector Solar...

  19. Mustang Island Offshore Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Island Offshore Wind Farm Jump to: navigation, search Name Mustang Island Offshore Wind Farm Facility Mustang Island Offshore Wind Farm Sector Wind energy Facility Type Offshore...

  20. Newport County, Rhode Island: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    5 Climate Zone Subtype A. Registered Energy Companies in Newport County, Rhode Island Forbes Energy LLC Places in Newport County, Rhode Island Jamestown, Rhode Island Little...

  1. Rhode Island Offshore Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Rhode Island Offshore Wind Farm Jump to: navigation, search Name Rhode Island Offshore Wind Farm Facility Rhode Island Offshore Wind Farm Sector Wind energy Facility Type Offshore...

  2. Newby Island I Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    Newby Island I Biomass Facility Jump to: navigation, search Name Newby Island I Biomass Facility Facility Newby Island I Sector Biomass Facility Type Landfill Gas Location Santa...

  3. Energy Department Helps Advance Island Clean Energy Goals | Department...

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

    Department Helps Advance Island Clean Energy Goals Energy Department Helps Advance Island Clean Energy Goals Highlights a solar power purchase agreement between the Virgin Islands ...

  4. Saint Paul Island Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Paul Island Wind Farm Jump to: navigation, search Name Saint Paul Island Wind Farm Facility Saint Paul Island Sector Wind energy Facility Type Community Wind Facility Status In...

  5. Seeding of InP islands on InAs quantum dot templates

    SciTech Connect (OSTI)

    Medeiros-Ribeiro, G.; Maltez, R. L.; Bernussi, A. A.; Ugarte, D.; de Carvalho, W.

    2001-06-01

    The ability of stacking layers of islands and their corresponding alignment have prompted a number of studies. The main focus so far has been on stacking self-assembled quantum dot (QD) layers of the same material and composition. Our goal is to create systems of coupled QDs of different electronic properties, aiming at hybridization of their different electronic levels. In this work, we investigate the early stages of the coupling of alternate InAs{endash}InP QD layers through a GaAs spacer layer. We have found that by using an InAs layer containing QDs as seeds, we can control the size, shape and density of InP islands by varying the spacer thickness. We have observed a significant improvement of the InP island size uniformity, as well as an induced size reduction, thus providing an extra degree of tunability previously available only through growth kinetics. {copyright} 2001 American Institute of Physics.

  6. Lake Charles Liquefaction Project | Department of Energy

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

    Lake Charles Liquefaction Project Lake Charles Liquefaction Project On July 29, 2016, DOE/FE granted Lake Charles Exports, LLC (LCE) and Lake Charles LNG Export Company, LLC (Lake Charles Export) final authorizations to export LNG up to the equivalent of 2.0 Bcf/d of natural gas to non-free trade agreement (non-FTA) countries in DOE/FE Order No. 3324-A to LCE and in DOE/FE Order No. 3868 for Lake Charles LNG Export. The total authorized LNG export volume to non-FTA countries approved between the

  7. One million served: Rhode Island`s recycling facility

    SciTech Connect (OSTI)

    Malloy, M.G.

    1997-11-01

    Rhode Island`s landfill and adjacent materials recovery facility (MRF) in Johnston, both owned by the quasi-public Rhode Island Resource Recovery Corp. (RIRRC, Johnston), serve the entire state. The $12-million recycling facility was built in 1989 next to the state`s sole landfill, the Central Landfill, which accepts only in-state trash. The MRF is operated for RIRRC by New England CRInc. (Hampton, N.H.), a unit of Waste Management, Inc. (WMI, Oak Brook, Ill.). It handles a wide variety of materials, from the usual newspaper, cardboard, and mixed containers to new streams such as wood waste, scrap metal, aseptic packaging (milk and juice boxes), and even textiles. State municipalities are in the process of adding many of these new recyclable streams into their curbside collection programs, all of which feed the facility.

  8. Suppression of metastable-phase inclusion in N-polar (0001{sup }) InGaN/GaN multiple quantum wells grown by metalorganic vapor phase epitaxy

    SciTech Connect (OSTI)

    Shojiki, Kanako Iwabuchi, Takuya; Kuboya, Shigeyuki; Choi, Jung-Hun; Tanikawa, Tomoyuki; Hanada, Takashi; Katayama, Ryuji; Matsuoka, Takashi; Usami, Noritaka

    2015-06-01

    The metastable zincblende (ZB) phase in N-polar (0001{sup }) (?c-plane) InGaN/GaN multiple quantum wells (MQWs) grown by metalorganic vapor phase epitaxy is elucidated by the electron backscatter diffraction measurements. From the comparison between the ?c-plane and Ga-polar (0001) (+c-plane), the ?c-plane MQWs were found to be suffered from the severe ZB-phase inclusion, while ZB-inclusion is negligible in the +c-plane MQWs grown under the same growth conditions. The ZB-phase inclusion is a hurdle for fabricating the ?c-plane light-emitting diodes because the islands with a triangular shape appeared on a surface in the ZB-phase domains. To improve the purity of stable wurtzite (WZ)-phase, the optimum conditions were investigated. The ZB-phase is dramatically eliminated with decreasing the V/III ratio and increasing the growth temperature. To obtain much-higher-quality MQWs, the thinner InGaN wells and the hydrogen introduction during GaN barriers growth were tried. Consequently, MQWs with almost pure WZ phase and with atomically smooth surface have been demonstrated.

  9. Thermal island destabilization and the Greenwald limit

    SciTech Connect (OSTI)

    White, R. B.; Gates, D. A.; Brennan, D. P.

    2015-02-15

    Magnetic reconnection is ubiquitous in the magnetosphere, the solar corona, and in toroidal fusion research discharges. In a fusion device, a magnetic island saturates at a width which produces a minimum in the magnetic energy of the configuration. At saturation, the modified current density profile, a function of the flux in the island, is essentially flat, the growth rate proportional to the difference in the current at the O-point and the X-point. Further modification of the current density profile in the island interior causes a change in the island stability and additional growth or contraction of the saturated island. Because field lines in an island are isolated from the outside plasma, an island can heat or cool preferentially depending on the balance of Ohmic heating and radiation loss in the interior, changing the resistivity and hence the current in the island. A simple model of island destabilization due to radiation cooling of the island is constructed, and the effect of modification of the current within an island is calculated. An additional destabilization effect is described, and it is shown that a small imbalance of heating can lead to exponential growth of the island. A destabilized magnetic island near the plasma edge can lead to plasma loss, and because the radiation is proportional to plasma density and charge, this effect can cause an impurity dependent density limit.

  10. Thermal island destabilization and the Greenwald limit

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

    White, R. B.; Gates, D. A.; Brennan, D. P.

    2015-02-24

    Magnetic reconnection is ubiquitous in the magnetosphere, the solar corona, and in toroidal fusion research discharges. A magnetic island saturates at a width which produces a minimum in the magnetic energy of the configuration is evident in a fusion device. At saturation, the modified current density profile, a function of the flux in the island, is essentially flat, the growth rate proportional to the difference in the current at the O-point and the X-point. Furthermore, modification of the current density profile in the island interior causes a change in the island stability and additional growth or contraction of the saturatedmore » island. Because field lines in an island are isolated from the outside plasma, an island can heat or cool preferentially depending on the balance of Ohmic heating and radiation loss in the interior, changing the resistivity and hence the current in the island. A simple model of island destabilization due to radiation cooling of the island is constructed, and the effect of modification of the current within an island is calculated. In addition destabilization effect is described, and it is shown that a small imbalance of heating can lead to exponential growth of the island. A destabilized magnetic island near the plasma edge can lead to plasma loss, and because the radiation is proportional to plasma density and charge, this effect can cause an impurity dependent density limit.« less

  11. Recharge Data for Hawaii Island

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

    Nicole Lautze

    2015-01-01

    Recharge data for Hawaii Island in shapefile format. The data are from the following sources: Whittier, R.B and A.I. El-Kadi. 2014. Human Health and Environmental Risk Ranking of On-Site Sewage Disposal systems for the Hawaiian Islands of Kauai, Molokai, Maui, and Hawaii – Final, Prepared for Hawaii Dept. of Health, Safe Drinking Water Branch by the University of Hawaii, Dept. of Geology and Geophysics. Oki, D. S. 1999. Geohydrology and Numerical Simulation of the Ground-Water Flow System of Kona, Island of Hawaii. U.S. Water-Resources Investigation Report: 99-4073. Oki, D. S. 2002. Reassessment of Ground-water Recharge and Simulated Ground-Water Availability for the Hawi Area of North Kohala, Hawaii. U.S. Geological Survey Water-Resources Investigation report 02-4006.

  12. Hawaii Island Groundwater Flow Model

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

    Nicole Lautze

    2015-01-01

    Groundwater flow model for Hawaii Island. Data is from the following sources: Whittier, R.B., K. Rotzoll, S. Dhal, A.I. El-Kadi, C. Ray, G. Chen, and D. Chang. 2004. Hawaii Source Water Assessment Program Report – Volume II – Island of Hawaii Source Water Assessment Program Report. Prepared for the Hawaii Department of Health, Safe Drinking Water Branch. University of Hawaii, Water Resources Research Center. Updated 2008; and Whittier, R. and A.I. El-Kadi. 2014. Human and Environmental Risk Ranking of Onsite Sewage Disposal Systems For the Hawaiian Islands of Kauai, Molokai, Maui, and Hawaii – Final. Prepared by the University of Hawaii, Dept. of Geology and Geophysics for the State of Hawaii Dept. of Health, Safe Drinking Water Branch. September 2014.

  13. Great Lakes Energy Coop | Open Energy Information

    Open Energy Info (EERE)

    Logo: Great Lakes Energy Coop Name: Great Lakes Energy Coop Address: PO Box 70 Place: Boyne City, MI Zip: 49712 Service Territory: Michigan Phone Number: 1-800-678-0411 Website:...

  14. Land O Lakes Inc | Open Energy Information

    Open Energy Info (EERE)

    O Lakes Inc Jump to: navigation, search Name: Land O'Lakes Inc Place: Saint Paul, Minnesota Zip: 55164-0101 Product: Farmer-owned cooperative, marketer of dairy-based products for...

  15. GaAs, AlGaAs and InGaP Tunnel Junctions for Multi-Junction Solar Cells Under Concentration: Resistance Study

    SciTech Connect (OSTI)

    Wheeldon, Jeffrey F.; Valdivia, Christopher E.; Walker, Alex; Kolhatkar, Gitanja; Hall, Trevor J.; Hinzer, Karin; Masson, Denis; Riel, Bruno; Fafard, Simon; Jaouad, Abdelatif; Turala, Artur; Ares, Richard; Aimez, Vincent

    2010-10-14

    The following four TJ designs, AlGaAs/AlGaAs, GaAs/GaAs, AlGaAs/InGaP and AlGaAs/GaAs are studied to determine minimum doping concentration to achieve a resistance of <10{sup -4} {omega}{center_dot}cm{sup 2} and a peak tunneling current suitable for MJ solar cells up to 1500-suns concentration (operating current of 21 A/cm{sup 2}). Experimentally calibrated numerical models are used to determine how the resistance changes as a function of doping concentration. The AlGaAs/GaAs TJ design is determined to require the least doping concentration to achieve the specified resistance and peak tunneling current, followed by the GaAs/GaAs, and AlGaAs/AlGaAs TJ designs. The AlGaAs/InGaP TJ design can only achieve resistances >5x10{sup -4} {omega}cm{sup 2}.

  16. Market Update: New England Islanded Grids

    Broader source: Energy.gov [DOE]

    Join the Islanded Grid Resource Center (IGRC) for our upcoming webinar highlighting the islanded grid communities along the New England coast that are exploring their options for reducing high...

  17. ARM - News from the Ascension Island deployment

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

    govNews from the Ascension Island deployment News from the Ascension Island deployment Media Coverage Features ClimateWire "Do clouds + smoke = climate change? Africa may have answers" *Subscription required. June 16, 2016

  18. Bainbridge Island Data Dashboard | Department of Energy

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

    The data dashboard for Bainbridge Island, a partner in the U.S. Department of Energy's Better Buildings Neighborhood Program. Bainbridge Island Data Dashboard (301.2 KB) More ...

  19. REAP Islanded Grid Wind Power Conference

    Broader source: Energy.gov [DOE]

    Hosted by Renewable Energy Alaska Project, this three-day conference will show attendees how to learn, network, and share information on wind systems in island and islanded grid environments through expert panel discussions, stakeholder dialogue, and training.

  20. REAP Islanded Grid Wind Power Conference

    Office of Energy Efficiency and Renewable Energy (EERE)

    Hosted by Renewable Energy Alaska Project, this three-day conference will show attendees how to learn, network, and share information on wind systems in island and islanded grid environments...

  1. ORISE Research Team Experiences: Joe Lake

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

    Joe Lake One-Time Student Intern has 'Second Life' as ORNL Mentor Joe Lake Joe Lake, a full-time software engineer for Oak Ridge National Laboratory's Computational Science and Engineering Division, is doing his part to help foster the next generation of scientists. As a former participant of both the ORISE-administered DOE Science Undergraduate Laboratory Internships (SULI) and Higher Education Research Experiences (HERE) programs, Lake is currently co-mentoring his fourth student. As a former

  2. Energy Transition Initiative: Island Energy Snapshot - U.S. Virgin Islands (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-03-01

    This profile provides a snapshot of the energy landscape of the U.S. Virgin Islands (USVI) - St. Thomas, St. John, and St. Croix. The Virgin Islands archipelago makes up the northern portion of the Lesser Antilles and the western island group of the Leeward Islands, forming the border between the Atlantic Ocean and the Caribbean Sea.

  3. Aleutian Pribilof Islands Association - Wind Energy Development

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

    In the Aleutian Pribilof Islands Tribal Energy Program Review November 18, 2008 By Bruce Wright Connie Fredenberg Aleutian Pribilof Islands Association "The Birthplace of the Wind" Aleutian Pribilof Islands Association, Inc. * 150 mph gusts * Extreme Turbulence Potential * Corrosive Salt Spray World Class Wind: A Mixed Blessing Aleutian Pribilof Islands Association, Inc. LOGISTICS * Anchorage to Nikolski is 916 air miles for $1,316 rt. * During the fishing season a refundable ticket

  4. Islands and Our Renewable Energy Future (Presentation)

    SciTech Connect (OSTI)

    Baring-Gould, I.; Gevorgian, V.; Kelley, K.; Conrad, M.

    2012-05-01

    Only US Laboratory Dedicated Solely to Energy Efficiency and Renewable Energy. High Contribution Renewables in Islanded Power Systems.

  5. Past, Present, Future Erosion at Locke Island

    SciTech Connect (OSTI)

    Bjornstad, Bruce N.

    2006-08-08

    This report describes and documents the erosion that has occurred along the northeast side of Locke Island over the last 10 to 20 years. The principal cause of this erosion is the massive Locke Island landslide complex opposite the Columbia River along the White Bluffs, which constricts the flow of the river and deflects the river's thalweg southward against the island.

  6. Temperature coefficients for GaInP/GaAs/GaInNAsSb solar cells

    SciTech Connect (OSTI)

    Aho, Arto; Isoaho, Riku; Tukiainen, Antti; Polojärvi, Ville; Aho, Timo; Raappana, Marianna; Guina, Mircea

    2015-09-28

    We report the temperature coefficients for MBE-grown GaInP/GaAs/GaInNAsSb multijunction solar cells and the corresponding single junction sub-cells. Temperature-dependent current-voltage measurements were carried out using a solar simulator equipped with a 1000 W Xenon lamp and a three-band AM1.5D simulator. The triple-junction cell exhibited an efficiency of 31% at AM1.5G illumination and an efficiency of 37–39% at 70x real sun concentration. The external quantum efficiency was also measured at different temperatures. The temperature coefficients up to 80°C, for the open circuit voltage, the short circuit current density, and the conversion efficiency were determined to be −7.5 mV/°C, 0.040 mA/cm{sup 2}/°C, and −0.09%/°C, respectively.

  7. Energy Transition Initiative: Islands Playbook

    Broader source: Energy.gov [DOE]

    The Island Energy Playbook provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  8. Intense terahertz emission from molecular beam epitaxy-grown GaAs/GaSb(001)

    SciTech Connect (OSTI)

    Sadia, Cyril P.; Laganapan, Aleena Maria; Agatha Tumanguil, Mae; Estacio, Elmer; Somintac, Armando; Salvador, Arnel; Que, Christopher T.; Yamamoto, Kohji; Tani, Masahiko

    2012-12-15

    Intense terahertz (THz) electromagnetic wave emission was observed in undoped GaAs thin films deposited on (100) n-GaSb substrates via molecular beam epitaxy. GaAs/n-GaSb heterostructures were found to be viable THz sources having signal amplitude 75% that of bulk p-InAs. The GaAs films were grown by interruption method during the growth initiation and using various metamorphic buffer layers. Reciprocal space maps revealed that the GaAs epilayers are tensile relaxed. Defects at the i-GaAs/n-GaSb interface were confirmed by scanning electron microscope images. Band calculations were performed to infer the depletion region and electric field at the i-GaAs/n-GaSb and the air-GaAs interfaces. However, the resulting band calculations were found to be insufficient to explain the THz emission. The enhanced THz emission is currently attributed to a piezoelectric field induced by incoherent strain and defects.

  9. Urban lake sediment chemistry: Lake design, runoff, and watershed impact

    SciTech Connect (OSTI)

    Amalfi, F.A.

    1988-01-01

    Sediments of twenty-two urban lakes and stormwater discharge into five of the impoundments were analyzed for the presence of selected metallic priority pollutants, total petroleum hydrocarbons, and volatile and extractable organic compounds. The concentration (mg/kg dry weight) ranges of metals in lake sediments were: arsenic 7-29, cadmium < 0.5-0.5, chromium 14-55, lead <1-138, selenium <0.01-1.1, silver 0.2-2.1, copper 25-2760, nickel 5-40, and zinc 33.9-239. Concentrations of total petroleum hydrocarbons ranged from 30 to 4400 mg/kg (wet weight). Organic priority pollutants detected in the urban lake impoundments included tetrachlorethylene, 1,1,2-trichloroethane, trichlorofluoromethane, phthalate esters, chloroform, and dichlorobromomethane. Stormwater runoff contained measurable quantities of arsenic, chromium, lead, selenium, copper, nickel, zinc, and petroleum hydrocarbons; whereas organic priority pollutants were not detected. Stormwater runoff pollutant loads indicated that runoff provides a significant contribution of metals and petroleum hydrocarbons to lake sediments.

  10. Blue Lake Rancheria Kicks Off Solar System Construction | Department of

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

    Energy Blue Lake Rancheria Kicks Off Solar System Construction Blue Lake Rancheria Kicks Off Solar System Construction May 9, 2016 - 5:54pm Addthis Blue Lake Rancheria Energy Director Jana Ganion flanked by Kernen Construction Site Supervisor Gavin Johnson (left) and Blue Lake Rancheria Facilities Director Neil Harris (right). Photo from Blue Lake Rancheria Blue Lake Rancheria Energy Director Jana Ganion flanked by Kernen Construction Site Supervisor Gavin Johnson (left) and Blue Lake

  11. Magnetic island evolution in hot ion plasmas

    SciTech Connect (OSTI)

    Ishizawa, A.; Nakajima, N.; Waelbroeck, F. L.; Fitzpatrick, R.; Horton, W.

    2012-07-15

    Effects of finite ion temperature on magnetic island evolution are studied by means of numerical simulations of a reduced set of two-fluid equations which include ion as well as electron diamagnetism in slab geometry. The polarization current is found to be almost an order of magnitude larger in hot than in cold ion plasmas, due to the strong shear of ion velocity around the separatrix of the magnetic islands. As a function of the island width, the propagation speed decreases from the electron drift velocity (for islands thinner than the Larmor radius) to values close to the guiding-center velocity (for islands of order 10 times the Larmor radius). In the latter regime, the polarization current is destabilizing (i.e., it drives magnetic island growth). This is in contrast to cold ion plasmas, where the polarization current is generally found to have a healing effect on freely propagating magnetic island.

  12. New GaInP/GaAs/GaInAs, Triple-Bandgap, Tandem Solar Cell for High-Efficiency Terrestrial Concentrator Systems

    SciTech Connect (OSTI)

    Kurtz, S.; Wanlass, M.; Kramer, C.; Young, M.; Geisz, J.; Ward, S.; Duda, A.; Moriarty, T.; Carapella, J.; Ahrenkiel, P.; Emery. K.; Jones, K.; Romero, M.; Kibbler, A.; Olson, J.; Friedman, D.; McMahon, W.; Ptak, A.

    2005-11-01

    GaInP/GaAs/GaInAs three-junction cells are grown in an inverted configuration on GaAs, allowing high quality growth of the lattice matched GaInP and GaAs layers before a grade is used for the 1-eV GaInAs layer. Using this approach an efficiency of 37.9% was demonstrated.

  13. Electrolysis on an Island Grid

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

    Electrolysis on an Island Grid Mitch Ewan Hydrogen Systems Program Manager Hawaii Natural Energy Institute School of Ocean Earth Science and Technology University of Hawaii at Manoa 28 February 2014 High Percentages of As-Available Renewable Resources Creates Problems for Grid Systems 1300MW 75MW 5MW 200MW  Good renewable resource mix;  High electricity costs; and  Grid issues.  Provide unique opportunity for validation and deployment of new renewable and enabling technologies. 200MW

  14. The Three Mile Island crisis

    SciTech Connect (OSTI)

    Houts, P.S.; Cleary, P.D.; Hu, T.W.

    1988-01-01

    Since the March 1979 accident at the Three Mile Island (TMI) nuclear power plant, many studies have assessed its impacts. Compiled and summarized in this book are the results of five related surveys, all aimed at the scientific assessment of the psycho-socio-economic behavior of the residents around the TMI facility. These studies are based on a randomly selected, large sample of the population (with telephones) around TMI.

  15. Pathogenicity island mobility and gene content.

    SciTech Connect (OSTI)

    Williams, Kelly Porter

    2013-10-01

    Key goals towards national biosecurity include methods for analyzing pathogens, predicting their emergence, and developing countermeasures. These goals are served by studying bacterial genes that promote pathogenicity and the pathogenicity islands that mobilize them. Cyberinfrastructure promoting an island database advances this field and enables deeper bioinformatic analysis that may identify novel pathogenicity genes. New automated methods and rich visualizations were developed for identifying pathogenicity islands, based on the principle that islands occur sporadically among closely related strains. The chromosomally-ordered pan-genome organizes all genes from a clade of strains; gaps in this visualization indicate islands, and decorations of the gene matrix facilitate exploration of island gene functions. A %E2%80%9Clearned phyloblocks%E2%80%9D method was developed for automated island identification, that trains on the phylogenetic patterns of islands identified by other methods. Learned phyloblocks better defined termini of previously identified islands in multidrug-resistant Klebsiella pneumoniae ATCC BAA-2146, and found its only antibiotic resistance island.

  16. DOE - Office of Legacy Management -- Lake_D

    Office of Legacy Management (LM)

    Disposal Site UMTRCA Title I site laked_map The Lakeview Disposal Site, an Uranium Mill Tailings Radiation Control Act (UMTRCA) Title I disposal site, is licensed to DOE for long-term custody and managed by the Office of Legacy Management. The site transferred to the Office of Legacy Management in 2003 and requires routine inspection and maintenance, records-related activities, and stakeholder support. For more information about the Lakeview site, view the fact sheet. Site Documents and Links

  17. Great Lakes Steel -- PCI facility

    SciTech Connect (OSTI)

    Eichinger, F.T.; Dake, S.H.; Wagner, E.D.; Brown, G.S.

    1997-12-31

    This paper discusses the planning, design, and start-up of the 90 tph PCI facility for National Steel`s Great Lakes Steel Division in River Rouge, MI. This project is owned and operated by Edison Energy Services, and was implemented on a fast-track basis by Raytheon Engineers and Constructors, Babcock Material Handling, and Babcock and Wilcox. This paper presents important process issues, basic design criteria, an the challenges of engineering and building a state-of-the-art PCI facility in two existing plants. Pulverized coal is prepared at the River Rouge Power Plant of Detroit Edison, is pneumatically conveyed 6,000 feet to a storage silo at Great Lakes Steel, and is injected into three blast furnaces.

  18. A signature for turbulence driven magnetic islands

    SciTech Connect (OSTI)

    Agullo, O.; Muraglia, M.; Benkadda, S.; Poyé, A.; Yagi, M.; Garbet, X.; Sen, A.

    2014-09-15

    We investigate the properties of magnetic islands arising from tearing instabilities that are driven by an interchange turbulence. We find that such islands possess a specific signature that permits an identification of their origin. We demonstrate that the persistence of a small scale turbulence maintains a mean pressure profile, whose characteristics makes it possible to discriminate between turbulence driven islands from those arising due to an unfavourable plasma current density gradient. We also find that the island poloidal turnover time, in the steady state, is independent of the levels of the interchange and tearing energy sources. Finally, we show that a mixing length approach is adequate to make theoretical predictions concerning island flattening in the island rotation frame.

  19. InGaAsN/GaAs heterojunction for multi-junction solar cells

    DOE Patents [OSTI]

    Kurtz, Steven R.; Allerman, Andrew A.; Klem, John F.; Jones, Eric D.

    2001-01-01

    An InGaAsN/GaAs semiconductor p-n heterojunction is disclosed for use in forming a 0.95-1.2 eV bandgap photodetector with application for use in high-efficiency multi-junction solar cells. The InGaAsN/GaAs p-n heterojunction is formed by epitaxially growing on a gallium arsenide (GaAs) or germanium (Ge) substrate an n-type indium gallium arsenide nitride (InGaAsN) layer having a semiconductor alloy composition In.sub.x Ga.sub.1-x As.sub.1-y N.sub.y with 0GaAs layer, with the InGaAsN and GaAs layers being lattice-matched to the substrate. The InGaAsN/GaAs p-n heterojunction can be epitaxially grown by either molecular beam epitaxy (MBE) or metalorganic chemical vapor deposition (MOCVD). The InGaAsN/GaAs p-n heterojunction provides a high open-circuit voltage of up to 0.62 volts and an internal quantum efficiency of >70%.

  20. CLEAR LAKE BASIN 2000 PROJECT

    SciTech Connect (OSTI)

    LAKE COUNTY SANITATION DISTRICT

    2003-03-31

    The following is a final report for the Clear Lake Basin 2000 project. All of the major project construction work was complete and this phase generally included final details and testing. Most of the work was electrical. Erosion control activities were underway to prepare for the rainy season. System testing including pump stations, electrical and computer control systems was conducted. Most of the project focus from November onward was completing punch list items.

  1. Energy Transition Initiative, Island Energy Snapshot - British Virgin Islands (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-03-01

    This profile provides a snapshot of the energy landscape of the British Virgin Islands (BVI), one of three sets of the Virgin Island territories in an archipelago making up the northern portion of the Lesser Antilles.

  2. The impact of monolayer coverage, barrier thickness and growth rate on the thermal stability of photoluminescence of coupled InAs/GaAs quantum dot hetero-structure with quaternary capping of InAlGaAs

    SciTech Connect (OSTI)

    Mandal, A.; Verma, U.; Halder, N.; Chakrabarti, S.

    2012-03-15

    Highlight: Black-Right-Pointing-Pointer Coupled InAs/GaAs MQDs with (In{sub 0.21}Al{sub 0.21}Ga{sub 0.58}As + GaAs) caps are considered. Black-Right-Pointing-Pointer Monolayer coverage, barrier thickness and growth rate of the dots are the factors. Black-Right-Pointing-Pointer PL peaks for the samples are within 1.1-1.3 {mu}m; significant for IBSCs and lasers. Black-Right-Pointing-Pointer NPTP (non-resonant multi-phonon assisted tunneling process) effect on FWHM of PL. -- Abstract: The self-assembled InAs/GaAs MQDs are widely investigated for their potential application in optoelectronic devices like lasers and photovoltaics. We have explored the effect of QD growth rate and structural parameters like capping layer thickness on the morphology and optical properties of the MQD heterostructures overgrown with a combination capping of InAlGaAs and GaAs. The growth rate of the seed layers in the MQD samples is also varied to investigate its effect in the vertical stacking of the islands. The change in the morphology and the optical properties of the samples due to variation in growth and structural parameters are explained by the presence of strain in the QD structures, which arises due to lattice mismatch.

  3. NREL: Technology Deployment - Technical Assistance for Islands

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

    Islands NREL provides technical assistance to help islands reduce dependence on fossil fuels and increase energy security by implementing energy efficiency measures and leveraging indigenous renewable resources. Hawaii NREL Helps Design LEED Platinum Affordable Housing U.S. Virgin Islands Landmark Solar Deal Completed with NREL Support This tailored technical assistance includes: Establishing baseline energy use Measuring available renewable resources Assessing the viability of various energy

  4. VEE-0018- In the Matter of Lakes Gas Company

    Broader source: Energy.gov [DOE]

    On March 12, 1996, the Lakes Gas Company (Lakes) of Forest Lake, Minnesota, filed an Application for Exception with the Office of Hearings and Appeals of the Department of Energy. In its...

  5. Offshore Islands Ltd | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Offshore Islands Ltd Region: United States Sector: Marine and Hydrokinetic Website: http: This company is listed in the Marine and Hydrokinetic...

  6. Nauru Island Effect Detection Data Set

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

    Long, Chuck

    During Nauru99 it was noted that the island was producing small clouds that advected over the ARM site. The Nauru Island Effect Study was run for 1.5 years and the methodology developed to detect the occurrence. Nauru ACRF downwelling SW, wind direction, and air temperature data are used, along with downwelling SW data from Licor radiometers located on the southern end of the island near the airport landing strip. A statistical analysis and comparison of data from the two locations is used to detect the likely occurrence of an island influence on the Nauru ACRF site data

  7. Nauru Island Effect Detection Data Set

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

    Long, Chuck

    2010-07-15

    During Nauru99 it was noted that the island was producing small clouds that advected over the ARM site. The Nauru Island Effect Study was run for 1.5 years and the methodology developed to detect the occurrence. Nauru ACRF downwelling SW, wind direction, and air temperature data are used, along with downwelling SW data from Licor radiometers located on the southern end of the island near the airport landing strip. A statistical analysis and comparison of data from the two locations is used to detect the likely occurrence of an island influence on the Nauru ACRF site data

  8. Freedom Energy (Rhode Island) | Open Energy Information

    Open Energy Info (EERE)

    Freedom Energy Place: Rhode Island Website: www.freedomenergytechnologies. Facebook: https:www.facebook.comFreedomEnergyTechnologies References: EIA Form EIA-861 Final Data File...

  9. GEXA Corp. (Rhode Island) | Open Energy Information

    Open Energy Info (EERE)

    GEXA Corp. Place: Rhode Island Website: www.gexaenergy.com Twitter: @nationalgridus Facebook: https:www.facebook.comnationalgrid Outage Hotline: 1-800-465-1212 Outage Map:...

  10. Block Island Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    energy Facility Type Commercial Scale Wind Facility Status Proposed Developer Deepwater Wind Location Offshore from Block Island RI Coordinates 41.1, -71.53 Show Map Loading...

  11. ,"Rhode Island Natural Gas Industrial Consumption (MMcf)"

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

    Of Series","Frequency","Latest Data for" ,"Data 1","Rhode Island Natural Gas Industrial Consumption (MMcf)",1,"Monthly","102015" ,"Release Date:","12312015" ,"Next...

  12. Prairie Island Indian Community | Department of Energy

    Office of Environmental Management (EM)

    Prairie Island Indian Community (1.42 MB) More Documents & Publications Shipping Radioactive Waste by Rail from Brookhaven National Laboratory Nuclear Fuel Storage and ...

  13. Asian American Pacific Islander Heritage Month

    Broader source: Energy.gov [DOE]

    Generations of Asian Americans and Pacific Islanders (AAPIs) have helped make America what it is today. Their histories recall bitter hardships and proud accomplishments -- from the laborers who...

  14. Marshall Islands: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name Marshall Islands Population 56,429 GDP Unavailable Energy Consumption Quadrillion Btu 2-letter ISO code MH 3-letter ISO code MHL Numeric ISO code...

  15. Cayman Islands: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name Cayman Islands Population Unavailable GDP Unavailable Energy Consumption Quadrillion Btu 2-letter ISO code KY 3-letter ISO code CYM Numeric ISO code...

  16. Aeromagnetic Survey And Interpretation, Ascention Island, South...

    Open Energy Info (EERE)

    And Interpretation, Ascention Island, South Atlantic Ocean Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Aeromagnetic Survey And...

  17. Bluewater Wind Rhode Island | Open Energy Information

    Open Energy Info (EERE)

    Island Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner NRG Bluewater Wind Developer NRG Bluewater Wind Location Atlantic Ocean RI Coordinates...

  18. Mountain Island Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    Mountain Island Energy, LLC Place: Soda Springs, Idaho Zip: 83276 Product: Energy and mining development company focused on next generation "clean technology". References:...

  19. Climate change: Effects on reef island resources

    SciTech Connect (OSTI)

    Oberdorfer, J.A.; Buddemeier, R.W.

    1988-06-27

    The salinity, depth, quantity, and reliability of fresh groundwater resources on coral reef islands and coastlines are environmentally important parameters. Groundwater influences or controls the terrestrial flora, salinity, and nutrient levels in the near-shore benthic environment, the rate and nature of sediment diagenesis, and the density of human habitation. Data from a number of Indo-Pacific reef islands suggest that freshwater inventory is a function of rainfall and island dimensions. A numerical model (SUTRA) has been used to simulate the responses of atoll island groundwater to changes in recharge (precipitation), sea level, and loss of island area due to flooding. The model has been calibrated for Enjebi Island, Enewetak Atoll, where a moderately permeable, water-table aquifer overlies a high-permeability formation. Total freshwater inventory is a monotonic but nonlinear function of recharge. If recharge and island area are constant, rising sea level increases the inventory of fresh water by increasing the useful volume of the aquifer above the high-permeability zone. Flooding of land area reduces the total freshwater inventory approximately in proportion to the loss of recharge area. The most significant results of the model simulation, however, are the findings that the inventory of low-salinity water (and by extrapolation, potable water) is disproportionately sensitive to changes in recharge, island dimensions, or recharge. Island freshwater resources may therefore be unexpectedly vulnerable to climate change.

  20. Great Lakes Biofuels LLC | Open Energy Information

    Open Energy Info (EERE)

    Great Lakes Biofuels LLC Place: Madison, Wisconsin Zip: 53704 Sector: Services Product: Biodiesel research, consulting, management distribution and services company. Coordinates:...

  1. Honey Lake Geothermal Area | Department of Energy

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

    The Honey Lake geothermal area is located in Lassen County, California and Washoe County, Nevada. There are three geothermal projects actively producing electrical power. They are ...

  2. Rice Lake Utilities | Open Energy Information

    Open Energy Info (EERE)

    Place: Wisconsin Phone Number: 715-234-7004 Website: www.ricelakeutilities.com Facebook: https:www.facebook.compagesCity-of-Rice-Lake-Utilities162786740407997 Outage...

  3. Lake Country Power | Open Energy Information

    Open Energy Info (EERE)

    Number: 8004219959 Website: www.lakecountrypower.coopinde Twitter: @LakeCountryPowe Facebook: https:www.facebook.comlakecountrypower Outage Hotline: 8004219959 Outage Map:...

  4. Lake Pocotopaug, Connecticut: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Lake Pocotopaug, Connecticut: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.5984325, -72.5103654 Show Map Loading map......

  5. Glacial Lakes Energy | Open Energy Information

    Open Energy Info (EERE)

    search Name: Glacial Lakes Energy Place: Watertown, South Dakota Zip: 57201 Product: Bioethanol producer using corn as feedstock Coordinates: 43.197366, -88.720469 Show Map...

  6. Spirit Lake Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Minnesota Windpower Energy Purchaser AlliantIES Utilities Location Spirit Lake IA Coordinates 43.411381, -95.10075 Show Map Loading map... "minzoom":false,"mappingse...

  7. Soda Lake Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Facility Add a new Operating Power Plant Developing Power Projects: 1 East Soda Lake Geothermal Project ( MW, Phase I - Resource Procurement and Identification) Add a new...

  8. Medicine Lake Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Page Technique Activity Start Date Activity End Date Reference Material Geothermal Literature Review At Medicine Lake Geothermal Area (1984) Geothermal Literature Review 1984...

  9. Magnetism and transport properties of epitaxial Fe-Ga thin films on GaAs(001)

    SciTech Connect (OSTI)

    Duong Anh Tuan; Shin, Yooleemi; Cho, Sunglae; Dang Duc Dung; Vo Thanh Son

    2012-04-01

    Epitaxial Fe-Ga thin films in disordered bcc {alpha}-Fe crystal structure (A2) have been grown on GaAs(001) by molecular beam epitaxy. The saturated magnetization (M{sub S}) decreased from 1371 to 1105 kA/m with increasing Ga concentration from 10.5 to 24.3 % at room temperature. The lattice parameter increased with the increase in Ga content because of the larger atomic radius of Ga atom than that of Fe. The increase in carrier density with Ga content caused in lower resistivity.

  10. Graphene induced remote surface scattering in graphene/AlGaN/GaN heterostructures

    SciTech Connect (OSTI)

    Liu, Xiwen; Li, Dan; Wang, Bobo; Liu, Bin; Chen, Famin; Jin, Guangri; Lu, Yanwu

    2014-10-20

    The mobilities of single-layer graphene combined with AlGaN/GaN heterostructures on two-dimensional electron gases in graphene/AlGaN/GaN double heterojunction are calculated. The impact of electron density in single-layer graphene is also studied. Remote surface roughness (RSR) and remote interfacial charge (RIC) scatterings are introduced into this heterostructure. The mobilities limited by RSR and RIC are an order of magnitude higher than that of interface roughness and misfit dislocation. This study contributes to designing structures for generation of higher electron mobility in graphene/AlGaN/GaN double heterojunction.

  11. Band Structure of Strain-Balanced GaAsBi/GaAsN Super-lattices on GaAs

    SciTech Connect (OSTI)

    Hwang, J.; Phillips, J. D.

    2011-05-31

    GaAs alloys with dilute content of Bi and N provide a large reduction in band-gap energy with increasing alloy composition. GaAsBi/GaAsN heterojunctions have a type-II band alignment, where superlattices based on these materials offer a wide range for designing effective band-gap energy by varying superlattice period and alloy composition. The miniband structure and effective band gap for strain-balanced GaAsBi/GaAsN superlattices with effective lattice match to GaAs are calculated for alloy compositions up to 5% Bi and N using the kp method. The effective band gap for these superlattices is found to vary between 0.89 and 1.32 eV for period thickness ranging from 10 to 100 . The joint density of states and optical absorption of a 40/40 GaAs0.96Bi0.04/GaAs0.98N0.02 superlattice are reported demonstrating a ground-state transition at 1.005 eV and first excited transition at 1.074 eV. The joint density of states is similar in magnitude to GaAs, while the optical absorption is approximately one order of magnitude lower due to the spatially indirect optical transition in the type-II structure. The GaAsBi/GaAsN system may provide a new material system with lattice match to GaAs in a spectral range of high importance for optoelectronic devices including solar cells, photodetectors, and light emitters.

  12. Obama Administration Hosts Great Lakes Offshore Wind Workshop in Chicago

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

    with Great Lakes Wind Collaborative | Department of Energy Hosts Great Lakes Offshore Wind Workshop in Chicago with Great Lakes Wind Collaborative Obama Administration Hosts Great Lakes Offshore Wind Workshop in Chicago with Great Lakes Wind Collaborative October 28, 2010 - 12:00am Addthis WASHINGTON - The White House Council on Environmental Quality and the U.S. Department of Energy hosted a workshop with the Great Lakes Wind Collaborative in Chicago on October 26 - 27, 2010, focused on the

  13. Optical and magnetotransport properties of InGaAs/GaAsSb/GaAs structures doped with a magnetic impurity

    SciTech Connect (OSTI)

    Kalentyeva, I. L. Zvonkov, B. N.; Vikhrova, O. V.; Danilov, Yu. A.; Demina, P. B.; Dorokhin, M. V.; Zdoroveyshchev, A. V.

    2015-11-15

    InGaAs/GaAsSb/GaAs bilayer quantum-well structures containing a magnetic-impurity δ-layer (Mn) at the GaAs/InGaAs interface are experimentally studied for the first time. The structures are fabricated by metal organic chemical-vapor deposition (MOCVD) and laser deposition on substrates of conducting (n{sup +}) and semi-insulating GaAs in a single growth cycle. The InGaAs-layer thickness is varied from 1.5 to 5 nm. The significant effect of a decrease in the InGaAs quantum-well thickness on the optical and magnetotransport properties of the structures under study is detected. Nonlinear magnetic-field dependence of the Hall resistance and negative magnetoresistance at temperatures of ≤30–40 K, circular polarization of the electroluminescence in a magnetic field, opposite behaviors of the photoluminescence and electroluminescence emission intensities in the structures, and an increase in the contribution of indirect transitions with decreasing InGaAs thickness are observed. Simulation shows that these effects can be caused by the influence of the δ-layer of acceptor impurity (Mn) on the band structure and the hole concentration distribution in the bilayer quantum well.

  14. Price of Elba Island, GA Natural Gas LNG Imports from Egypt ...

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

    Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- 11.33 6.74 6.81 9.36 3.72 2010's 4.50 3.97 2.52 -- --

  15. Elba Island, GA LNG Imports (Price) from Qatar (Dollars per Thousand Cubic

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

    Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- -- -- 2010's -- 4.69 2.84 3.45 --

  16. Elba Island, GA LNG Imports (Price) from Qatar (Dollars per Thousand Cubic

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

    Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 5.09 5.13 5.10 4.52 4.45 4.14 4.01 2012 3.65 2.94 2.17 2.00 2.82 3.09 2.67 3.10 3.61 2013 3.34 3.57

  17. Price of Elba Island, GA Liquefied Natural Gas Total Imports (Dollars per

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

    Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 5.12 6.47 9.18 7.03 6.79 9.71 3.73 2010's 4.39 4.20 2.78 3.36 4.33 2.83

  18. Price of Elba Island, GA Liquefied Natural Gas Total Imports (Dollars per

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

    Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2014 4.36 4.82 4.58 3.91 2015 3.08 2.74 2.76 2.76 2016 1.52

  19. Price of Elba Island, GA Natural Gas LNG Imports from Egypt (Nominal

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

    Dollars per Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 4.21 3.67 4.14 4.29 4.22 3.22 2012 2.52

  20. Price of Elba Island, GA Natural Gas LNG Imports from Trinidad and Tobago

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

    (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's NA 2000's NA 1.92 3.51 5.12 6.47 8.59 7.14 6.85 9.88 3.75 2010's 4.28 3.86 2.71 3.28 4.33 2.83

  1. Price of Elba Island, GA Natural Gas LNG Imports from Trinidad and Tobago

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

    (Dollars per Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 4.15 3.71 4.31 3.78 3.26 3.26 2012 2.30 1.87 2.28 2.64 2.89 2.49 3.62 2013 3.25 3.12 3.48 2014 4.36 4.82 4.58 3.91 2015 3.08 2.74 2.76 2.76 2016 1.52

  2. HERO BX formerly Lake Erie Biofuels | Open Energy Information

    Open Energy Info (EERE)

    HERO BX formerly Lake Erie Biofuels Jump to: navigation, search Name: HERO BX (formerly Lake Erie Biofuels) Place: Erie, Pennsylvania Product: Pennsylvania-based project developer...

  3. Lake County, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    2 Climate Zone Subtype A. US Recovery Act Smart Grid Projects in Lake County, Florida City of Leesburg, Florida Smart Grid Project Energy Generation Facilities in Lake County,...

  4. Lake County, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    North Chicago, Illinois Old Mill Creek, Illinois Palatine, Illinois Park City, Illinois Port Barrington, Illinois Riverwoods, Illinois Round Lake Beach, Illinois Round Lake...

  5. City of Mountain Lake, Minnesota (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    Lake, Minnesota (Utility Company) Jump to: navigation, search Name: City of Mountain Lake Place: Minnesota Phone Number: (507) 427-2999 Website: www.mountainlakemn.comindex.a...

  6. Ground Gravity Survey At Clear Lake Area (Skokan, 1993) | Open...

    Open Energy Info (EERE)

    Ground Gravity Survey At Clear Lake Area (Skokan, 1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Clear Lake Area...

  7. Summer Lake Hot Springs Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Summer Lake Hot Springs Space Heating Low Temperature Geothermal Facility Facility Summer Lake...

  8. Salt Lake City, Utah: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Salt Lake City, Utah: Energy Resources (Redirected from Salt Lake City, UT) Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.7607793, -111.8910474 Show Map...

  9. Pressure Temperature Log At Fish Lake Valley Area (DOE GTP) ...

    Open Energy Info (EERE)

    Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Pressure Temperature Log At Fish Lake Valley Area (DOE GTP)...

  10. Thermochronometry At Fish Lake Valley Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermochronometry At Fish Lake Valley Area (DOE GTP) Exploration...

  11. Static Temperature Survey At Fish Lake Valley Area (Deymonaz...

    Open Energy Info (EERE)

    Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static Temperature Survey At Fish Lake Valley Area...

  12. Hyperspectral Imaging At Fish Lake Valley Area (Littlefield ...

    Open Energy Info (EERE)

    Fish Lake Valley Area (Littlefield & Calvin, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Hyperspectral Imaging At Fish Lake Valley Area...

  13. Geothermometry At Fish Lake Valley Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Fish Lake Valley Area (DOE GTP) Exploration...

  14. Compound and Elemental Analysis At Fish Lake Valley Area (DOE...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Fish Lake Valley Area (DOE GTP) Exploration Activity Details Location Fish Lake Valley Area...

  15. Geographic Information System At Fish Lake Valley Area (Deymonaz...

    Open Energy Info (EERE)

    Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Fish Lake Valley...

  16. Fish Lake Valley Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Fish Lake Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Fish Lake Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure...

  17. Modeling-Computer Simulations At Fish Lake Valley Area (Deymonaz...

    Open Energy Info (EERE)

    Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Fish Lake Valley...

  18. Geothermal Literature Review At Fish Lake Valley Area (Deymonaz...

    Open Energy Info (EERE)

    Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At Fish Lake Valley...

  19. Lake Gas Recovery Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    Gas Recovery Biomass Facility Jump to: navigation, search Name Lake Gas Recovery Biomass Facility Facility Lake Gas Recovery Sector Biomass Facility Type Landfill Gas Location Cook...

  20. Lake County, Oregon: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Zone Subtype B. Places in Lake County, Oregon Crump Geyser, Oregon Lakeview, Oregon Paisley, Oregon Retrieved from "http:en.openei.orgwindex.php?titleLakeCounty,Oregon&ol...

  1. Wall Lake Municipal Utilities Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Municipal Utilities Energy Purchaser Wall Lake Municipal Utilities Location Wall Lake IA Coordinates 42.281965, -95.094098 Show Map Loading map... "minzoom":false,"mappings...

  2. EIS-0498: Magnolia LNG and Lake Charles Expansion Projects; Calcasieu...

    Office of Environmental Management (EM)

    8: Magnolia LNG and Lake Charles Expansion Projects; Calcasieu Parish, Louisiana EIS-0498: Magnolia LNG and Lake Charles Expansion Projects; Calcasieu Parish, Louisiana Summary The ...

  3. Mercury Vapor At Medicine Lake Area (Kooten, 1987) | Open Energy...

    Open Energy Info (EERE)

    Medicine Lake Area (Kooten, 1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Mercury Vapor At Medicine Lake Area (Kooten, 1987) Exploration...

  4. EA-1996: Glass Buttes Radio Station, Lake County, Oregon | Department...

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

    6: Glass Buttes Radio Station, Lake County, Oregon EA-1996: Glass Buttes Radio Station, Lake County, Oregon SUMMARY The Bureau of Land Management (BLM), with DOE's Bonneville Power...

  5. Stantec Investigates Bat Activity in Atlantic and Great Lakes...

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

    Stantec Investigates Bat Activity in Atlantic and Great Lakes Offshore Regions Stantec Investigates Bat Activity in Atlantic and Great Lakes Offshore Regions October 1, 2013 - ...

  6. Overview Of The Lake City, California Geothermal System | Open...

    Open Energy Info (EERE)

    : GRC; p. () Related Geothermal Exploration Activities Activities (1) Geothermal Literature Review At Lake City Hot Springs Area (Benoit, Et Al., 2004) Areas (1) Lake City Hot...

  7. Lake County Ag Park Greenhouse Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Ag Park Greenhouse Low Temperature Geothermal Facility Jump to: navigation, search Name Lake County Ag Park Greenhouse Low Temperature Geothermal Facility Facility Lake County Ag...

  8. Great Lakes Science Center Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Science Center Wind Farm Jump to: navigation, search Name Great Lakes Science Center Wind Farm Facility Great Lakes Science Center Sector Wind energy Facility Type Community Wind...

  9. Lake Elsinore Pool & Spa Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Elsinore Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Lake Elsinore Pool & Spa Low Temperature Geothermal Facility Facility Lake Elsinore Sector...

  10. PYRAMID LAKE RENEWEABLE ENERGY PLAN (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    PYRAMID LAKE RENEWEABLE ENERGY PLAN Citation Details In-Document Search Title: PYRAMID LAKE RENEWEABLE ENERGY PLAN You are accessing a document from the Department of Energy's ...

  11. DOE - Office of Legacy Management -- West Lake Landfill - MO...

    Office of Legacy Management (LM)

    Lake Landfill - MO 05 FUSRAP Considered Sites Site: West Lake Landfill (MO.05) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition:...

  12. Similarities in shoreline response to Late Holocene lake-level variations in Lake Michigan

    SciTech Connect (OSTI)

    Thompson, T.A.; Baedke, S.J. )

    1992-01-01

    Beach ridges dating back to 2600 B.P. occur in embayments throughout Lake Michigan. Similarities in their geomorphic development are interpreted to be the product of three scales of lake-level variation. The largest of these embayments is roughly coincident with the Indiana shore of Lake Michigan known as the Toleston Beach. In the western part of the Toleston Beach, more than 150 beach ridges have formed in response to short-term variations in lake level occurring at a quasi-periodic interval of about 30 years. Bundles of five of these ridges merge eastward to form higher relief beach ridges that record an intermediate-term lake-level variation of about 150 years. Both the 30-year and 150-year lake-level events are superimposed on a longer term lake-level variation of about 600 years. Beach-ridge development in northern Lake Michigan reflects a similar response to late Holocene lake-level variations. For example, the southern embayment of the Platte Bay Unit of the Sleeping Bear Dunes National Lakeshore also contains a series of beach ridges that record three scales of lake-level variation. In this area, most of the beach ridges formed between 2600 and 1200 B.P., with individual ridges forming about every 29 years. Also recorded in this embayment are the time equivalent groupings of beach ridges every 150 and 600 years. Although embayments containing beach ridges in Lake Michigan may record different short-term lake-level variations in response to local depositional conditions within the embayment, the 150-year and 600-year variations appear to be represented throughout the lake. Relative lake-level curves for the Toleston Beach and the Platte Bay embayment are displaced by approximately 1.5 m. This displacement is accounted for under current models of isostasy for Lake Michigan.

  13. Minnesota Nuclear Profile - Prairie Island

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

    Prairie Island" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date" 1,521,"4,655",102.0,"PWR","application/vnd.ms-excel","application/vnd.ms-excel" 2,519,"4,128",90.8,"PWR","application/vnd.ms-excel","application/vnd.ms-excel"

  14. Energy Transition Initiative, Island Energy Snapshot - Grenada (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-03-01

    This profile provides a snapshot of the energy landscape of Grenada - a small island nation consisting of the island of Grenada and six smaller islands in the southeastern Caribbean Sea - three of which are inhabited: Grenada, Carriacou, and Petite Martinique.

  15. Degradation mechanisms of 2 MeV proton irradiated AlGaN/GaN HEMTs...

    Office of Scientific and Technical Information (OSTI)

    irradiated AlGaNGaN HEMTs This content will become publicly available on August 26, 2016 Title: Degradation mechanisms of 2 MeV proton irradiated AlGaNGaN HEMTs Authors: ...

  16. AlGaAsSb/GaSb Distributed Bragg Reflectors Grown by Organometallic Vapor Phase Epitaxy

    SciTech Connect (OSTI)

    C.A. Wang; C.J. Vineis; D.R. Calawa

    2002-02-13

    The first AlGaAsSb/GaSb quarter-wave distributed Bragg reflectors grown by metallic vapor phase epitaxy are reported. The peak reflectance is 96% for a 10-period structure.

  17. (In,Ga)As/GaP electrical injection quantum dot laser

    SciTech Connect (OSTI)

    Heidemann, M. Höfling, S.; Kamp, M.

    2014-01-06

    The paper reports on the realization of multilayer (In,Ga)As/GaP quantum dot (QD) lasers grown by gas source molecular beam epitaxy. The QDs have been embedded in (Al,Ga)P/GaP waveguide structures. Laser operation at 710 nm is obtained for broad area laser devices with a threshold current density of 4.4 kA/cm{sup 2} at a heat-sink temperature of 80 K.

  18. Bell Island Space Heating Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Bell Island Space Heating Low Temperature Geothermal Facility Facility Bell Island Sector...

  19. United States Virgin Islands: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    (CLEAN Partner Activity) Energy Incentives for United States Virgin Islands Solar Water Heater Rebate Program (U.S. Virgin Islands) Southern States Energy Compact (Multiple...

  20. Verdant-Roosevelt Island Tidal Energy | Open Energy Information

    Open Energy Info (EERE)

    Verdant-Roosevelt Island Tidal Energy Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleVerdant-RooseveltIslandTidalEnergy&oldid680702" ...

  1. Islanded Grid Wind Power Workshop | Department of Energy

    Energy Savers [EERE]

    The event will provide an opportunity for attendees to learn, network, and share information on wind systems in island and islanded grid environments through expert panel ...

  2. Canary Islands Institute of Technology ITC | Open Energy Information

    Open Energy Info (EERE)

    Canary Islands Institute of Technology ITC Jump to: navigation, search Name: Canary Islands Institute of Technology (ITC) Place: Las Palmas, Spain Zip: 35119 Product: Las...

  3. GaInP/GaAs/GaInAs Monolithic Tandem Cells for High-Performance Solar Concentrators

    SciTech Connect (OSTI)

    Wanlass, M. W.; Ahrenkiel, S. P.; Albin, D. S.; Carapella, J. J.; Duda, A.; Emery, K.; Geisz, J. F.; Jones, K.; Kurtz, S.; Moriarty, T.; Romero, M. J.

    2005-08-01

    We present a new approach for ultra-high-performance tandem solar cells that involves inverted epitaxial growth and ultra-thin device processing. The additional degree of freedom afforded by the inverted design allows the monolithic integration of high-, and medium-bandgap, lattice-matched (LM) subcell materials with lower-bandgap, lattice-mismatched (LMM) materials in a tandem structure through the use of transparent compositionally graded layers. The current work concerns an inverted, series-connected, triple-bandgap, GaInP (LM, 1.87 eV)/GaAs (LM, 1.42 eV)/GaInAs (LMM, {approx}1 eV) device structure grown on a GaAs substrate. Ultra-thin tandem devices are fabricated by mounting the epiwafers to pre-metallized Si wafer handles and selectively removing the parent GaAs substrate. The resulting handle-mounted, ultra-thin tandem cells have a number of important advantages, including improved performance and potential reclamation/reuse of the parent substrate for epitaxial growth. Additionally, realistic performance modeling calculations suggest that terrestrial concentrator efficiencies in the range of 40-45% are possible with this new tandem cell approach. A laboratory-scale (0.24 cm2), prototype GaInP/GaAs/GaInAs tandem cell with a terrestrial concentrator efficiency of 37.9% at a low concentration ratio (10.1 suns) is described, which surpasses the previous world efficiency record of 37.3%.

  4. Working Groups Collaborate on U.S. Virgin Islands Clean Energy Vision and Road Map

    Broader source: Energy.gov [DOE]

    Energy Transition Initiative: Islands lesson learned detailing work done in the U.S. Virgin Islands.

  5. The Lake Charles CCS Project

    SciTech Connect (OSTI)

    Doug Cathro

    2010-06-30

    The Lake Charles CCS Project is a large-scale industrial carbon capture and sequestration (CCS) project which will demonstrate advanced technologies that capture and sequester carbon dioxide (CO{sub 2}) emissions from industrial sources into underground formations. Specifically the Lake Charles CCS Project will accelerate commercialization of large-scale CO{sub 2} storage from industrial sources by leveraging synergy between a proposed petroleum coke to chemicals plant (the LCC Gasification Project) and the largest integrated anthropogenic CO{sub 2} capture, transport, and monitored sequestration program in the U.S. Gulf Coast Region. The Lake Charles CCS Project will promote the expansion of EOR in Texas and Louisiana and supply greater energy security by expanding domestic energy supplies. The capture, compression, pipeline, injection, and monitoring infrastructure will continue to sequester CO{sub 2} for many years after the completion of the term of the DOE agreement. The objectives of this project are expected to be fulfilled by working through two distinct phases. The overall objective of Phase 1 was to develop a fully definitive project basis for a competitive Renewal Application process to proceed into Phase 2 - Design, Construction and Operations. Phase 1 includes the studies attached hereto that will establish: the engineering design basis for the capture, compression and transportation of CO{sub 2} from the LCC Gasification Project, and the criteria and specifications for a monitoring, verification and accounting (MVA) plan at the Hastings oil field in Texas. The overall objective of Phase 2, provided a successful competitive down-selection, is to execute design, construction and operations of three capital projects: (1) the CO{sub 2} capture and compression equipment, (2) a Connector Pipeline from the LLC Gasification Project to the Green Pipeline owned by Denbury and an affiliate of Denbury, and (3) a comprehensive MVA system at the Hastings oil field.

  6. Metal-interconnection-free integration of InGaN/GaN light emitting diodes with AlGaN/GaN high electron mobility transistors

    SciTech Connect (OSTI)

    Liu, Chao; Cai, Yuefei; Liu, Zhaojun; Ma, Jun; Lau, Kei May

    2015-05-04

    We report a metal-interconnection-free integration scheme for InGaN/GaN light emitting diodes (LEDs) and AlGaN/GaN high electron mobility transistors (HEMTs) by combining selective epi removal (SER) and selective epitaxial growth (SEG) techniques. SER of HEMT epi was carried out first to expose the bottom unintentionally doped GaN buffer and the sidewall GaN channel. A LED structure was regrown in the SER region with the bottom n-type GaN layer (n-electrode of the LED) connected to the HEMTs laterally, enabling monolithic integration of the HEMTs and LEDs (HEMT-LED) without metal-interconnection. In addition to saving substrate real estate, minimal interface resistance between the regrown n-type GaN and the HEMT channel is a significant improvement over metal-interconnection. Furthermore, excellent off-state leakage characteristics of the driving transistor can also be guaranteed in such an integration scheme.

  7. A hole modulator for InGaN/GaN light-emitting diodes

    SciTech Connect (OSTI)

    Zhang, Zi-Hui; Kyaw, Zabu; Liu, Wei; Ji, Yun; Wang, Liancheng; Tan, Swee Tiam; Sun, Xiao Wei E-mail: VOLKAN@stanfordalumni.org; Demir, Hilmi Volkan E-mail: VOLKAN@stanfordalumni.org

    2015-02-09

    The low p-type doping efficiency of the p-GaN layer has severely limited the performance of InGaN/GaN light-emitting diodes (LEDs) due to the ineffective hole injection into the InGaN/GaN multiple quantum well (MQW) active region. The essence of improving the hole injection efficiency is to increase the hole concentration in the p-GaN layer. Therefore, in this work, we have proposed a hole modulator and studied it both theoretically and experimentally. In the hole modulator, the holes in a remote p-type doped layer are depleted by the built-in electric field and stored in the p-GaN layer. By this means, the overall hole concentration in the p-GaN layer can be enhanced. Furthermore, the hole modulator is adopted in the InGaN/GaN LEDs, which reduces the effective valance band barrier height for the p-type electron blocking layer from ?332?meV to ?294?meV at 80?A/cm{sup 2} and demonstrates an improved optical performance, thanks to the increased hole concentration in the p-GaN layer and thus the improved hole injection into the MQWs.

  8. AlGaN/GaN heterostructure prepared on a Si (110) substrate via pulsed sputtering

    SciTech Connect (OSTI)

    Watanabe, T.; Ohta, J.; Kondo, T.; Ohashi, M.; Ueno, K.; Kobayashi, A.; Fujioka, H.

    2014-05-05

    GaN films were grown on Si (110) substrates using a low-temperature growth technique based on pulsed sputtering. Reduction of the growth temperature suppressed the strain in the GaN films, leading to an increase in the critical thickness for crack formation. In addition, an AlGaN/GaN heterostructure with a flat heterointerface was prepared using this technique. Furthermore, the existence of a two dimensional electron gas at the heterointerface with a mobility of 1360 cm{sup 2}/Vs and a sheet carrier density of 1.3??10{sup 13}?cm{sup ?2} was confirmed. Finally, the use of the AlGaN/GaN heterostructure in a high electron mobility transistor was demonstrated. These results indicate that low-temperature growth via pulsed sputtering is quite promising for the fabrication of GaN-based electronic devices.

  9. Collection of High Energy Yielding Strains of Saline Microalgae from the Hawaiian Islands: Final Technical Report, Year 1

    SciTech Connect (OSTI)

    York, R. H.

    1986-01-01

    Microalgae were collected from 48 locations in the Hawaiian Islands in 1985. The sites were an aquaculture tank; a coral reef; bays; a geothermal steam vent; Hawaiian fish ponds; a Hawaiian salt punawai (well); the ocean; river mouths; saline lakes; saline pools; saline ponds; a saline swamp; and the ponds, drainage ditches and sumps of commercial shrimp farms. From 4,800 isolations, 100 of the most productive clones were selected to be maintained by periodic transfer to sterile medium. Five clones were tested for growth rate and production in a full-spectrum-transmitting solarium.

  10. March 28, 1979: Three Mile Island | Department of Energy

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

    8, 1979: Three Mile Island March 28, 1979: Three Mile Island March 28, 1979: Three Mile Island March 28, 1979 A partial meltdown of the core occurs at one of the two reactors at the Three Mile Island nuclear power plant near Harrisburg, Pennsylvania

  11. EIS-0476: Vogtle Electric Generating Plant in Burke County, GA...

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

    6: Vogtle Electric Generating Plant in Burke County, GA EIS-0476: Vogtle Electric Generating Plant in Burke County, GA EIS-0476: Final Environmental Impact Statement EIS-0476: ...

  12. Carrier quenching in InGaP/GaAs double heterostructures

    SciTech Connect (OSTI)

    Wells, Nathan P. Driskell, Travis U.; Hudson, Andrew I.; LaLumondiere, Stephen D.; Lotshaw, William T.; Forbes, David V.; Hubbard, Seth M.

    2015-08-14

    Photoluminescence measurements on a series of GaAs double heterostructures demonstrate a rapid quenching of carriers in the GaAs layer at irradiance levels below 0.1 W/cm{sup 2} in samples with a GaAs-on-InGaP interface. These results indicate the existence of non-radiative defect centers at or near the GaAs-on-InGaP interface, consistent with previous reports showing the intermixing of In and P when free As impinges on the InGaP surface during growth. At low irradiance, these defect centers can lead to sub-ns carrier lifetimes. The defect centers involved in the rapid carrier quenching can be saturated at higher irradiance levels and allow carrier lifetimes to reach hundreds of nanoseconds. To our knowledge, this is the first report of a nearly three orders of magnitude decrease in carrier lifetime at low irradiance in a simple double heterostructure. Carrier quenching occurs at irradiance levels near the integrated Air Mass Zero (AM0) and Air Mass 1.5 (AM1.5) solar irradiance. Additionally, a lower energy photoluminescence band is observed both at room and cryogenic temperatures. The temperature and time dependence of the lower energy luminescence is consistent with the presence of an unintentional InGaAs or InGaAsP quantum well that forms due to compositional mixing at the GaAs-on-InGaP interface. Our results are of general interest to the photovoltaic community as InGaP is commonly used as a window layer in GaAs based solar cells.

  13. Long Island Smart Energy Corridor

    SciTech Connect (OSTI)

    Mui, Ming

    2015-02-04

    The Long Island Power Authority (LIPA) has teamed with Stony Brook University (Stony Brook or SBU) and Farmingdale State College (Farmingdale or FSC), two branches of the State University of New York (SUNY), to create a “Smart Energy Corridor.” The project, located along the Route 110 business corridor on Long Island, New York, demonstrated the integration of a suite of Smart Grid technologies from substations to end-use loads. The Smart Energy Corridor Project included the following key features: -TECHNOLOGY: Demonstrated a full range of smart energy technologies, including substations and distribution feeder automation, fiber and radio communications backbone, advanced metering infrastructure (AM”), meter data management (MDM) system (which LIPA implemented outside of this project), field tools automation, customer-level energy management including automated energy management systems, and integration with distributed generation and plug-in hybrid electric vehicles. -MARKETING: A rigorous market test that identified customer response to an alternative time-of-use pricing plan and varying levels of information and analytical support. -CYBER SECURITY: Tested cyber security vulnerabilities in Smart Grid hardware, network, and application layers. Developed recommendations for policies, procedures, and technical controls to prevent or foil cyber-attacks and to harden the Smart Grid infrastructure. -RELIABILITY: Leveraged new Smart Grid-enabled data to increase system efficiency and reliability. Developed enhanced load forecasting, phase balancing, and voltage control techniques designed to work hand-in-hand with the Smart Grid technologies. -OUTREACH: Implemented public outreach and educational initiatives that were linked directly to the demonstration of Smart Grid technologies, tools, techniques, and system configurations. This included creation of full-scale operating models demonstrating application of Smart Grid technologies in business and residential

  14. Highly uniform, multi-stacked InGaAs/GaAs quantum dots embedded in a GaAs nanowire

    SciTech Connect (OSTI)

    Tatebayashi, J. Ota, Y.; Ishida, S.; Nishioka, M.; Iwamoto, S.; Arakawa, Y.

    2014-09-08

    We demonstrate a highly uniform, dense stack of In{sub 0.22}Ga{sub 0.78}As/GaAs quantum dot (QD) structures in a single GaAs nanowire (NW). The size (and hence emission energy) of individual QD is tuned by careful control of the growth conditions based on a diffusion model of morphological evolution of NWs and optical characterization. By carefully tailoring the emission energies of individual QD, dot-to-dot inhomogeneous broadening of QD stacks in a single NW can be as narrow as 9.3?meV. This method provides huge advantages over traditional QD stack using a strain-induced Stranski-Krastanow growth scheme. We show that it is possible to fabricate up to 200 uniform QDs in single GaAs NWs using this growth technique without degradation of the photoluminescence intensity.

  15. Oxidation of ultrathin GaSe

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

    Thomas Edwin Beechem; McDonald, Anthony E.; Ohta, Taisuke; Howell, Stephen W.; Kalugin, Nikolai G.; Kowalski, Brian M.; Brumbach, Michael T.; Spataru, Catalin D.; Pask, Jesse A.

    2015-10-26

    Oxidation of exfoliated gallium selenide (GaSe) is investigated through Raman, photoluminescence, Auger, and X-ray photoelectron spectroscopies. Photoluminescence and Raman intensity reductions associated with spectral features of GaSe are shown to coincide with the emergence of signatures emanating from the by-products of the oxidation reaction, namely, Ga2Se3 and amorphous Se. Furthermore, photoinduced oxidation is initiated over a portion of a flake highlighting the potential for laser based patterning of two-dimensional heterostructures via selective oxidation.

  16. Oxidation of ultrathin GaSe

    SciTech Connect (OSTI)

    Thomas Edwin Beechem; McDonald, Anthony E.; Ohta, Taisuke; Howell, Stephen W.; Kalugin, Nikolai G.; Kowalski, Brian M.; Brumbach, Michael T.; Spataru, Catalin D.; Pask, Jesse A.

    2015-10-26

    Oxidation of exfoliated gallium selenide (GaSe) is investigated through Raman, photoluminescence, Auger, and X-ray photoelectron spectroscopies. Photoluminescence and Raman intensity reductions associated with spectral features of GaSe are shown to coincide with the emergence of signatures emanating from the by-products of the oxidation reaction, namely, Ga2Se3 and amorphous Se. Furthermore, photoinduced oxidation is initiated over a portion of a flake highlighting the potential for laser based patterning of two-dimensional heterostructures via selective oxidation.

  17. Categorical Exclusion Determinations: Rhode Island | Department...

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

    The New England Solar cost-Reduction Challenge Partnership CX(s) Applied: A9, A11 Date: 08152013 Location(s): Vermont, New Hampshire, Rhode Island, Massachusetts, Connecticut ...

  18. Rhode Island Renewable Energy Fund (RIREF)

    Broader source: Energy.gov [DOE]

    Rhode Island's PBF is supported by a surcharge on electric and gas customers' bills. Initially, the surcharge was was set at $0.0023 per kilowatt-hour (2.3 mills per kWh) and applied only to...

  19. Community Redevelopment Case Study: Jekyll Island

    Broader source: Energy.gov [DOE]

    Presentation—given at the April 2012 Federal Utility Partnership Working Group (FUPWG) meeting—features photos from a case study about Jekyll Island's community redevelopment project in Georgia.

  20. Aleutian Pribilof Islands Association- 2005 Project

    Broader source: Energy.gov [DOE]

    The Aleutian Pribilof Islands Association (APIA) was chartered as a nonprofit organization in 1976 and is a federally recognized tribal organization of the Aleut people. APIA will conduct an...

  1. N. Mariana Islands- Renewables Portfolio Standard

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Commonwealth of the Northern Mariana Islands enacted its Renewables Portfolio Standard in September 2007, in which a certain percentage of its net electricity sales must come from renewable e...

  2. U.S. Virgin Islands- Net Metering

    Broader source: Energy.gov [DOE]

    In February 2007, the U.S. Virgin Islands Public Services Commission approved a limited net-metering program for residential and commercial photovoltaic (PV), wind-energy or other renewable energ...

  3. Solomon Islands: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name Solomon Islands Population 523,000 GDP 840,000,000 Energy Consumption 0.00 Quadrillion Btu 2-letter ISO code SB 3-letter ISO code SLB Numeric ISO...

  4. Faroe Islands: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name Faroe Islands Population 48,351 GDP 2,450,000,000 Energy Consumption 0.01 Quadrillion Btu 2-letter ISO code FO 3-letter ISO code FRO Numeric ISO...

  5. Energy Department Helps Rhode Island Schools Teach Energy Essentials |

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

    Department of Energy Rhode Island Schools Teach Energy Essentials Energy Department Helps Rhode Island Schools Teach Energy Essentials September 21, 2015 - 4:17pm Addthis Students participating in the NEED Project at Scituate High and Calcutt Middle Schools planted 14 trees in Central Falls, Rhode Island. Students participating in the NEED Project at Scituate High and Calcutt Middle Schools planted 14 trees in Central Falls, Rhode Island. Calcutt Middle School students in Rhode Island played

  6. Alternative Fuels Data Center: Rhode Island EV Initiative Adds Chargers

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Across the State Rhode Island EV Initiative Adds Chargers Across the State to someone by E-mail Share Alternative Fuels Data Center: Rhode Island EV Initiative Adds Chargers Across the State on Facebook Tweet about Alternative Fuels Data Center: Rhode Island EV Initiative Adds Chargers Across the State on Twitter Bookmark Alternative Fuels Data Center: Rhode Island EV Initiative Adds Chargers Across the State on Google Bookmark Alternative Fuels Data Center: Rhode Island EV Initiative Adds

  7. Celebrating Asian American Pacific Islander Heritage Month at the Energy

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

    Department | Department of Energy Celebrating Asian American Pacific Islander Heritage Month at the Energy Department Celebrating Asian American Pacific Islander Heritage Month at the Energy Department May 1, 2014 - 4:22pm Addthis Celebrating Asian American Pacific Islander Heritage Month at the Energy Department Each May we celebrate Asian American and Pacific Islander Heritage Month, honoring the accomplishments of Asian Americans, Native Hawaiians, and Pacific Islanders at the Energy

  8. EERE Success Story-Rhode Island Schools Teach Energy Essentials |

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

    Department of Energy Rhode Island Schools Teach Energy Essentials EERE Success Story-Rhode Island Schools Teach Energy Essentials December 10, 2015 - 11:24am Addthis Students participating in the NEED Project at Scituate High and Calcutt Middle Schools planted 14 trees in Central Falls, Rhode Island. Photo Courtesy | Rhode Island Public Schools Students participating in the NEED Project at Scituate High and Calcutt Middle Schools planted 14 trees in Central Falls, Rhode Island. Photo

  9. Interconnecting gold islands with DNA origami

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

    Interconnecting gold islands with DNA origami Authors: Ding, B., Wu, H., Xu, W., Zhao, Z., Liu, Y., Yu, H., and Yan, H. Title: Interconnecting gold islands with DNA origami Source: Nano Lett. Year: 2010 Volume: 10 Pages: 5065-5069 ABSTRACT: Scaffolded DNA origami has recently emerged as a versatile, programmable method to fold DNA into arbitrarily shaped nanostructures that are spatially addressable, with sub-10-nm resolution. Toward functional DNA nanotechnology, one of the key challenges is to

  10. Clear Lake Cogeneration LP | Open Energy Information

    Open Energy Info (EERE)

    Cogeneration LP Jump to: navigation, search Name: Clear Lake Cogeneration LP Place: Idaho Phone Number: 281-474-7611 Outage Hotline: 281-474-7611 References: EIA Form EIA-861 Final...

  11. Salt Lake City- High Performance Buildings Requirement

    Broader source: Energy.gov [DOE]

    Salt Lake City's mayor issued an executive order in July 2005 requiring that all public buildings owned and controlled by the city be built or renovated to meet the requirements of LEED "silver"...

  12. Solar on Salt Lake City Convention Center

    Broader source: Energy.gov [DOE]

    This photograph features the Calvin L. Rampton Salt Palace Convention Center, which will soon become a solar power-producing giant. Salt Lake County and its project partners announced plans to...

  13. Lake Mills Light & Water | Open Energy Information

    Open Energy Info (EERE)

    Light & Water Jump to: navigation, search Name: Lake Mills Light & Water Place: Wisconsin Phone Number: (920) 648-4026 Website: www.lakemillslw.com Outage Hotline: (920) 648-4026...

  14. Dry lake reveals evidence of Southwestern 'megadroughts'

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

    Dry lake reveals evidence of Southwestern 'megadroughts' Dry lake reveals evidence of Southwestern 'megadroughts' A portion of the research indicates that an ancient period of warming may be analogous to natural present-day climate conditions. February 28, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma

  15. Lake Erie Connector Project Environmental Assessment Draft

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

    Volume 1 - Main Document U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Washington DC June 2016 Cover Photo Credits http://www.itclakeerieconnector.com/ DRAFT LAKE ERIE CONNECTOR PROJECT ENVIRONMENTAL ASSESSMENT Volume 1-Main Document DOE/EA-2019 U.S. DEPARTMENT OF ENERGY OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY COOPERATING AGENCY U.S. ARMY CORPS OF ENGINEERS This Page Intentionally Left Blank Lake Erie Connector Project Draft Environmental

  16. Synthesis, morphology and optical properties of GaN and AlGaN semiconductor nanostructures

    SciTech Connect (OSTI)

    Kuppulingam, B. Singh, Shubra Baskar, K.

    2014-04-24

    Hexagonal Gallium Nitride (GaN) and Aluminum Gallium Nitride (AlGaN) nanoparticles were synthesized by sol-gel method using Ethylene Diamine Tetra Acetic acid (EDTA) complex route. Powder X-ray diffraction (PXRD) analysis confirms the hexagonal wurtzite structure of GaN and Al{sub 0.25}Ga{sub 0.75}N nanoparticles. Surface morphology and elemental analysis were carried out by Scanning Electron Microscope (SEM) and Energy Dispersive X-ray spectroscopy (EDX). The room temperature Photoluminescence (PL) study shows the near band edge emission for GaN at 3.35 eV and at 3.59 eV for AlGaN nanoparticles. The Aluminum (Al) composition of 20% has been obtained from PL emission around 345 nm.

  17. High-performance InGaP/GaAs pnp {delta}-doped heterojunction bipolar transistor

    SciTech Connect (OSTI)

    Tsai, J.-H. Chiu, S.-Y.; Lour, W.-S.; Guo, D.-F.

    2009-07-15

    In this article, a novel InGaP/GaAs pnp {delta}-doped heterojunction bipolar transistor is first demonstrated. Though the valence band discontinuity at InGaP/GaAs heterojunction is relatively large, the addition of a {delta}-doped sheet between two spacer layers at the emitter-base (E-B) junction effectively eliminates the potential spike and increases the confined barrier for electrons, simultaneously. Experimentally, a high current gain of 25 and a relatively low E-B offset voltage of 60 mV are achieved. The offset voltage is much smaller than the conventional InGaP/GaAs pnp HBT. The proposed device could be used for linear amplifiers and low-power complementary integrated circuit applications.

  18. Zinc blende GaAs films grown on wurtzite GaN/sapphire templates

    SciTech Connect (OSTI)

    Chaldyshev, V.V.; Nielsen, B.; Mendez, E.E.; Musikhin, Yu.G.; Bert, N.A.; Ma, Zh.; Holden, Todd

    2005-03-28

    1-{mu}m-thick zinc-blende GaAs (111) films were grown by molecular-beam epitaxy on wurtzite GaN/sapphire (0001) templates. In spite of a {approx}20% lattice mismatch, epitaxial growth was realized, so that the GaAs films showed good adhesion and their surface had a larger mirror-like area with an average surface roughness of 10 nm. Transmission electron microscopy revealed a flat and abrupt epitaxial GaAs/GaN interface with some nanocavities and a large number of dislocations. Reasonably good crystalline quality of the GaAs films was confirmed by Raman characterization. Spectroscopic ellipsometry showed sharp interference fringes and characteristic parameters in the range of 0.75-5.3 eV. Photoluminescence study revealed extended band tails and dominance of non-radiative carrier recombination.

  19. Princeton Plasma Physics Lab - General Atomics (GA)

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

    general-atomics-ga General Atomics en The Scorpion's Strategy: "Catch and Subdue" http:www.pppl.govnode1132

  20. Simplified 2DEG carrier concentration model for composite barrier AlGaN/GaN HEMT

    SciTech Connect (OSTI)

    Das, Palash Biswas, Dhrubes

    2014-04-24

    The self consistent solution of Schrodinger and Poisson equations is used along with the total charge depletion model and applied with a novel approach of composite AlGaN barrier based HEMT heterostructure. The solution leaded to a completely new analytical model for Fermi energy level vs. 2DEG carrier concentration. This was eventually used to demonstrate a new analytical model for the temperature dependent 2DEG carrier concentration in AlGaN/GaN HEMT.

  1. GaTe semiconductor for radiation detection

    DOE Patents [OSTI]

    Payne, Stephen A.; Burger, Arnold; Mandal, Krishna C.

    2009-06-23

    GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materials. The detector can be used, e.g., for detection of illicit nuclear weapons and radiological dispersed devices at ports of entry, in cities, and off shore and for determination of medical isotopes present in a patient.

  2. Lake Granbury and Lake Whitney Assessment Initiative Final Scientific/Technical Report Summary

    SciTech Connect (OSTI)

    Harris, B.L.; Roelke, Daniel; Brooks, Bryan; Grover, James

    2010-10-11

    A team of Texas AgriLife Research, Baylor University and University of Texas at Arlington researchers studied the biology and ecology of Prymnesium parvum (golden algae) in Texas lakes using a three-fold approach that involved system-wide monitoring, experimentation at the microcosm and mesocosm scales, and mathematical modeling. The following are conclusions, to date, regarding this organism??s ecology and potential strategies for mitigation of blooms by this organism. In-lake monitoring revealed that golden algae are present throughout the year, even in lakes where blooms do not occur. Compilation of our field monitoring data with data collected by Texas Parks and Wildlife and Brazos River Authority (a period spanning a decade) revealed that inflow and salinity variables affect bloom formations. Thresholds for algae populations vary per lake, likely due to adaptations to local conditions, and also to variations in lake-basin morphometry, especially the presence of coves that may serve as hydraulic storage zones for P. parvum populations. More specifically, our in-lake monitoring showed that the highly toxic bloom that occurred in Lake Granbury in the winter of 2006/2007 was eliminated by increased river inflow events. The bloom was flushed from the system. The lower salinities that resulted contributed to golden algae not blooming in the following years. However, flushing is not an absolute requirement for bloom termination. Laboratory experiments have shown that growth of golden algae can occur at salinities ~1-2 psu but only when temperatures are also low. This helps to explain why blooms are possible during winter months in Texas lakes. Our in-lake experiments in Lake Whitney and Lake Waco, as well as our laboratory experiments, revealed that cyanobacteria, or some other bacteria capable of producing algicides, were able to prevent golden algae from blooming. Identification of this organism is a high priority as it may be a key to managing golden algae blooms

  3. Magnetic coupling in ferromagnetic semiconductor (Ga,Mn)As/(Al,Ga,Mn)As bilayers

    SciTech Connect (OSTI)

    Wang, M.; Wadley, P.; Campion, R. P.; Rushforth, A. W.; Edmonds, K. W.; Gallagher, B. L.; Charlton, T. R.; Kinane, C. J.; Langridge, S.

    2015-08-07

    We report on a study of ferromagnetic semiconductor (Ga,Mn)As/(Al,Ga,Mn)As bilayers using magnetometry and polarized neutron reflectivity (PNR). From depth-resolved characterization of the magnetic structure obtained by PNR, we concluded that the (Ga,Mn)As and (Al,Ga,Mn)As layers have in-plane and perpendicular-to-plane magnetic easy axes, respectively, with weak interlayer coupling. Therefore, the layer magnetizations align perpendicular to each other under low magnetic fields and parallel at high fields.

  4. Accelerated aging of GaAs concentrator solar cells

    SciTech Connect (OSTI)

    Gregory, P.E.

    1982-04-01

    An accelerated aging study of AlGaAs/GaAs solar cells has been completed. The purpose of the study was to identify the possible degradation mechanisms of AlGaAs/GaAs solar cells in terrestrial applications. Thermal storage tests and accelerated AlGaAs corrosion studies were performed to provide an experimental basis for a statistical analysis of the estimated lifetime. Results of this study suggest that a properly designed and fabricated AlGaAs/GaAs solar cell can be mechanically rugged and environmentally stable with projected lifetimes exceeding 100 years.

  5. Correlation between morphology, chemical environment, and ferromagnetism in the intrinsic-vacancy dilute magnetic semiconductor Cr-doped Ga2Se3/Si(001)

    SciTech Connect (OSTI)

    Yitamben, E.N.; Arena, D.; Lovejoy, T.C.; Pakhomov, A.B.; Heald, S.M.; Negusse, E.; Ohuchi, F.S.; Olmstead, M.A.

    2011-01-28

    Chromium-doped gallium sesquiselenide, Cr:Ga{sub 2}Se{sub 3}, is a member of a new class of dilute magnetic semiconductors exploiting intrinsic vacancies in the host material. The correlation among room-temperature ferromagnetism, surface morphology, electronic structure, chromium concentration, and local chemical and structural environments in Cr:Ga{sub 2}Se{sub 3} films grown epitaxially on silicon is investigated with magnetometry, scanning tunneling microscopy, photoemission spectroscopy, and x-ray absorption spectroscopy. Inclusion of a few percent chromium in Ga{sub 2}Se{sub 3} results in laminar, semiconducting films that are ferromagnetic at room temperature with a magnetic moment 4{micro}{sub B}/Cr. The intrinsic-vacancy structure of defected-zinc-blende {beta}-Ga{sub 2}Se{sub 3} enables Cr incorporation in a locally octahedral site without disrupting long-range order, determined by x-ray absorption spectroscopy, as well as strong overlap between Cr 3d states and the Se 4p states lining the intrinsic-vacancy rows, observed with photoemission. The highest magnetic moment per Cr is observed near the solubility limit of roughly one Cr per three vacancies. At higher Cr concentrations, islanded, metallic films result, with a magnetic moment that depends strongly on surface morphology. The effective valence is Cr{sup 3+} in laminar films, with introduction of Cr{sup 0} upon islanding. A mechanism is proposed for laminar films whereby ordered intrinsic vacancies mediate ferromagnetism.

  6. Energy and water in the Great Lakes.

    SciTech Connect (OSTI)

    Tidwell, Vincent Carroll

    2011-11-01

    The nexus between thermoelectric power production and water use is not uniform across the U.S., but rather differs according to regional physiography, demography, power plant fleet composition, and the transmission network. That is, in some regions water demand for thermoelectric production is relatively small while in other regions it represents the dominate use. The later is the case for the Great Lakes region, which has important implications for the water resources and aquatic ecology of the Great Lakes watershed. This is today, but what about the future? Projected demographic trends, shifting lifestyles, and economic growth coupled with the threat of global climate change and mounting pressure for greater U.S. energy security could have profound effects on the region's energy future. Planning for such an uncertain future is further complicated by the fact that energy and environmental planning and regulatory decisionmaking is largely bifurcated in the region, with environmental and water resource concerns generally taken into account after new energy facilities and technologies have been proposed, or practices are already in place. Based on these confounding needs, the objective of this effort is to develop Great Lakes-specific methods and tools to integrate energy and water resource planning and thereby support the dual goals of smarter energy planning and development, and protection of Great Lakes water resources. Guiding policies for this planning are the Great Lakes and St. Lawrence River Basin Water Resources Compact and the Great Lakes Water Quality Agreement. The desired outcome of integrated energy-water-aquatic resource planning is a more sustainable regional energy mix for the Great Lakes basin ecosystem.

  7. InGaN/GaN tunnel junctions for hole injection in GaN light emitting diodes

    SciTech Connect (OSTI)

    Krishnamoorthy, Sriram E-mail: rajan@ece.osu.edu; Akyol, Fatih; Rajan, Siddharth E-mail: rajan@ece.osu.edu

    2014-10-06

    InGaN/GaN tunnel junction contacts were grown using plasma assisted molecular beam epitaxy (MBE) on top of a metal-organic chemical vapor deposition (MOCVD)-grown InGaN/GaN blue (450?nm) light emitting diode. A voltage drop of 5.3?V at 100?mA, forward resistance of 2 10{sup ?2} ? cm{sup 2}, and a higher light output power compared to the reference light emitting diodes (LED) with semi-transparent p-contacts were measured in the tunnel junction LED (TJLED). A forward resistance of 5??10{sup ?4} ? cm{sup 2} was measured in a GaN PN junction with the identical tunnel junction contact as the TJLED, grown completely by MBE. The depletion region due to the impurities at the regrowth interface between the MBE tunnel junction and the MOCVD-grown LED was hence found to limit the forward resistance measured in the TJLED.

  8. Sculpting the shape of semiconductor heteroepitaxial islands: fromdots to rods

    SciTech Connect (OSTI)

    Robinson, J.T.; Walko, D.A.; Arms, D.A.; Tinberg, D.S.; Evans,P.G.; Cao, Y.; Liddle, J.A.; Rastelli, A.; Schmidt, O.G.; Dubon, O.D.

    2006-06-20

    In the Ge on Si model heteroepitaxial system, metal patterns on the silicon surface provide unprecedented control over the morphology of highly ordered Ge islands. Island shape including nanorods and truncated pyramids is set by the metal species and substrate orientation. Analysis of island faceting elucidates the prominent role of the metal in promoting growth of preferred facet orientations while investigations of island composition and structure reveal the importance of Si-Ge intermixing in island evolution. These effects reflect a remarkable combination of metal-mediated growth phenomena that may be exploited to tailor the functionality of island arrays in heteroepitaxial systems.

  9. The Pd/Fe Interface in the Epitaxial System Pd/Fe/GaAs(001)- 4 x 6

    SciTech Connect (OSTI)

    Budnik, P.S.; Gordon, R.A.; Crozier, E.D.

    2007-01-18

    Magnetic properties of thin magnetic films are strongly affected by the nature of the interface between magnetic and non-magnetic layers. In spintronic devices the extent to which spins are scattered at an interface depends upon interfacial roughness, alloying, and impurities. We present a polarization-dependent XAFS study of a 1Pd/9Fe/GaAs(001)-(4 x 6) structure grown in situ in the MBE facility at the PNC/XOR, APS. To increase the interfacial roughness, the 1ML Pd was grown on the 9 ML Fe without first sputtering and annealing the Fe. An estimate of interfacial roughness, evidence for formation of Pd islands, their height, and the amount of As floating to the Pd surface from the GaAs are given.

  10. GaP ring-like nanostructures on GaAs (100) with In{sub 0.15}Ga{sub 0.85}As compensation layers

    SciTech Connect (OSTI)

    Prongjit, Patchareewan Pankaow, Naraporn Boonpeng, Poonyasiri Thainoi, Supachok Panyakeow, Somsak Ratanathammaphan, Somchai

    2013-12-04

    We present the fabrication of GaP ring-like nanostructures on GaAs (100) substrates with inserted In{sub 0.15}Ga{sub 0.85}As compensation layers. The samples are grown by droplet epitaxy using solid-source molecular beam epitaxy. The dependency of nanostructural and optical properties of GaP nanostructures on In{sub 0.15}Ga{sub 0.85}As layer thickness is investigated by ex-situ atomic force microscope (AFM) and photoluminescence (PL). It is found that the characteristics of GaP ring-like structures on GaAs strongly depend on the In{sub 0.15}Ga{sub 0.85}As layer thickness.