"TITLE","AUTHORS","SUBJECT","SUBJECT_RELATED","DESCRIPTION","PUBLISHER","AVAILABILITY","RESEARCH_ORG","SPONSORING_ORG","PUBLICATION_COUNTRY","LANGUAGE","RESOURCE_TYPE","TYPE_QUALIFIER","RELATION","COVERAGE","FORMAT","IDENTIFIER","REPORT_NUMBER","DOE_CONTRACT_NUMBER","OTHER_IDENTIFIER","SOURCE","RIGHTS","ENTRY_DATE","OSTI_IDENTIFIER","PURL_URL"
"Development of a Low-Cost Rotary Steerable Drilling System","Roney Nazarian","15 GEOTHERMAL ENERGY; BOREHOLES; DRILLING; FABRICATION; FIELD TESTS; OPERATING COST; RELIABILITY; TARGETS; TORQUE; TRAJECTORIES; VELOCITY; VIABILITY","","The project had the goal to develop and commercialize a low-cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures to reduce operating costs by a minimum of 50% and lost-in-hole charges by at least 50% over the currently offered systems. The LCRSS system developed under this project does reduce operating costs by 55% and lost-in-hole charges by at least 50%. The developed product is not commercializable in its current form. The overall objective was to develop and commercialize a low cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures (20,000 psi/150 C) while reducing the operating costs by 50% and the lost-in-hole charges by 50% over the currently available systems. The proposed reduction in costs were to be realized through the significant reduction in tool complexity, a corresponding increase in tool reliability as expressed in the mean-time between failure (MTBF), and a reduction in the time and costs required to service tools after each field operation. Ultimately, the LCRSS system was to be capable of drilling 7 7/8 in. to 9 5/8 in. borehole diameters. The project was divided into three Phases, of which Phases I & II were previously completed and reported on, and are part of the case file. Therefore, the previously reported information is not repeated herein. Phase III included the fabrication of two field ready prototypes that were to be subjected to a series of drilling tests at GTI Catoosa, DOE RMOTC, and at customer partnering wells, if possible, as appropriate in the timing of the field test objectives to fully exercise all elements of the LCRSS. These tests were conducted in an iterative process based on a performance/reliability improvement cycle with the goal of demonstrating the system met all aspects required for commercial viability. These tests were conducted to achieve continuous runs of 100+ hours with well trajectories that fully exercised the tool's build/turn/drop/hold target capabilities and its higher end ratings for bit weight, torque and rotary speed. The tool teardowns were rigorously analyzed at the conclusion of each field run to assess component wear rates and to fully document any detrimental behavior(s) observed.","","","Noble Wellbore Technologies","USDOE","United States","English","Technical Report","","","Final","Medium: ED","OSTI ID: 1025562","","FC26-05NT42657","TRN: US201120%%779","NETL; RN11122505","","2011-11-07","1025562","http://www.osti.gov/bridge/servlets/purl/1025562/"
"Friction Stir Processing for Efficient Manufacturing","Mr. Christopher B. Smith; Dr. Oyelayo Ajayi","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","Friction stir processing, heat treatment, hardness, energy efficient, wear, friction","Friction at contacting surfaces in relative motion is a major source of parasitic energy loss in machine systems and manufacturing processes.  Consequently, friction reduction usually translates to efficiency gain and reduction in energy consumption.  Furthermore, friction at surfaces eventually leads to wear and failure of the components thereby compromising reliability and durability.  In order to reduce friction and wear in tribological components, material surfaces are often hardened by a variety of methods, including conventional heat treatment, laser surface hardening, and thin-film coatings.  While these surface treatments are effective when used in conjunction with lubrication to prevent failure, they are all energy intensive and could potentially add significant cost.
 A new concept for surface hardening of metallic materials and components is Friction Stir Processing (FSP).  Compared to the current surface hardening technologies, FSP is more energy efficient has no emission or waste by products and may result in better tribological performance.  FSP involves plunging a rotating tool to a predetermined depth (case layer thickness) and translating the FSP tool along the area to be processed.  This action of the tool produces heating and severe plastic deformation of the processed area.  For steel the temperature is high enough to cause phase transformation, ultimately forming hard martensitic phase.  Indeed, FSP has been used for surface modification of several metals and alloys so as to homogenize the microstructure and refine the grain size, both of which led to improved fatigue and corrosion resistance.
 
 Based on the effect of FSP on near-surface layer material, it was expected to have beneficial effects on friction and wear performance of metallic materials.  However, little or no knowledge existed on the impact of FSP concerning friction and wear performance – the subject of the this project and final report.  Specifically for steel, which is the most dominant tribological material, FSP can replace the current conventional surface hardening techniques used for friction and wear performance.  Friction Stir Link Inc. (FSL) is teamed with Argonne National Laboratory (ANL) to develop and optimize FSP for friction and wear performance enhancement.  The ultimate goal is to offer FSP and an effective alternative to some of the current energy intensive and high-cost surface hardening processes.","","","Friction Stir LInk, Inc.","USDOE","United States","English","Technical Report","","","Final","Medium: ED; Size: 3.5Mb","OSTI ID: 1033593","Final Report","EE0003465","","GFO","","2012-02-02","1033593","http://www.osti.gov/bridge/servlets/purl/1033593/"
"Methane Gas Utilization Project from Landfill at Ellery (NY)","Pantelis K. Panteli","09 BIOMASS FUELS","Landfill Gas","Landfill Gas to Electric Energy Generation and Transmission at Chautauqua County Landfill, Town of Ellery, New York","","","County of Chautauqua","USDOE","United States","English","Technical Report","","","Final","Medium: ED; Size: 70,048KB","OSTI ID: 1032846","002","FG36-08GO88059","","GFO","","2012-02-02","1032846","http://www.osti.gov/bridge/servlets/purl/1032846/"
"Hydrogen Education Curriculum Path at Michigan Technological University","Keith, Jason; Crowl, Daniel; Caspary, David; Naber, Jeff; Allen, Jeff; Mukerjee, Abhijit; Meng, Desheng; Lukowski, John; Solomon, Barry; Meldrum, Jay","08 HYDROGEN","hydrogen; hydrogen economy; fuel cells; hydrogen minor; hydrogen technology course material; fuel cell course material","The objective of this project was four-fold. First, we developed new courses in alternative energy and hydrogen laboratory and update existing courses in fuel cells. Secondly, we developed hydrogen technology degree programs. Thirdly, we developed hydrogen technology related course material for core courses in chemical engineering, mechanical engineering, and electrical engineering. Finally, we developed fuel cell subject material to supplement the Felder & Rousseau and the Geankoplis chemical engineering undergraduate textbooks.","","","Michigan Technological University","USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)","United States","English","Technical Report","","","Final","Medium: ED; Size: 1 MB pdf file of 23 pages","OSTI ID: 1032499","DOE/GO/18108","FG36-08GO18108","","GFO","","2012-01-12","1032499","http://www.osti.gov/bridge/servlets/purl/1032499/"
"Inflow Characterization and Aerodynamics Measurements on a SWT-2.3-101 Wind Turbine: Preprint","Medina, P.; Singh, M.; Johansen, J.; Jove, A.; Fingersh, L.; Schreck, S.","17 WIND ENERGY","WIND; WIND ENERGY; WIND TURBINES; NATIONAL WIND TECHNOLOGY CENTER; NWTC; SIEMENS; AERODYNAMICS; Wind Energy","Post processing techniques for aerodynamic data acquired from a Siemens' SWT-2.3-101 turbine have been developed and applied in this paper. The turbine is installed at the National Wind Technology Center (NWTC) as part of Cooperative Research And Development Agreement between Siemens Wind Power and the National Renewable Energy Laboratory (NREL) under U.S. Department of Energy (DOE) sponsorship. The results indicate that the use of these corrections is essential for accurate analysis of the data. An example of local inflow angles, velocities, and inflow velocity over the rotor plane derived from measurements from a 5-hole probe is also presented. Finally the pressure measurements are used to characterize unsteady phenomenon, namely, rotational augmentation and dynamic stall on an inboard station. The results show that the rotational augmentation can considerably increase the attached flow regime compared to the 2D CFD results. The dynamic stall event was seen to significantly delay the stall. Furthermore, the nondimensionalized vortex convection derived from the dynamic stall event was found to agree well with results from others studies.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Wind and Water Power Program","United States","English","Conference","","Conference: Presented at the 50th AIAA Aerospace Sciences Meeting/Wind Energy Symposium, 9-12 January, 2012, Nashville, Tennessee","","Medium: ED; Size: 14 pp.","OSTI ID: 1032674","NREL/CP-5000-53666","AC36-08GO28308","","NREL","","2012-01-09","1032674","http://www.osti.gov/bridge/servlets/purl/1032674/"
"Variance Analysis of Wind and Natural Gas Generation under Different Market Structures: Some Observations","Bush, B.; Jenkin, T.; Lipowicz, D.; Arent, D. J.; Cooke, R.","03 NATURAL GAS; 17 WIND ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","RENEWABLE ENERGY; VARIANCE ANALYSIS; VARIANCE; REGULATED MARKETS; DEREGULATED MARKETS; RISK MITIGATION; WIND ENERGY; SOLAR ENERGY; Energy Analysis","Does large scale penetration of renewable generation such as wind and solar power pose economic and operational burdens on the electricity system? A number of studies have pointed to the potential benefits of renewable generation as a hedge against the volatility and potential escalation of fossil fuel prices. Research also suggests that the lack of correlation of renewable energy costs with fossil fuel prices means that adding large amounts of wind or solar generation may also reduce the volatility of system-wide electricity costs. Such variance reduction of system costs may be of significant value to consumers due to risk aversion. The analysis in this report recognizes that the potential value of risk mitigation associated with wind generation and natural gas generation may depend on whether one considers the consumer's perspective or the investor's perspective and whether the market is regulated or deregulated. We analyze the risk and return trade-offs for wind and natural gas generation for deregulated markets based on hourly prices and load over a 10-year period using historical data in the PJM Interconnection (PJM) from 1999 to 2008. Similar analysis is then simulated and evaluated for regulated markets under certain assumptions.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Energy Efficiency and Renewable Energy","United States","English","Technical Report","","","","Medium: ED; Size: 50 pp.","OSTI ID: 1033025","NREL/TP-6A20-52790","AC36-08GO28308","","NREL","","2012-01-19","1033025","http://www.osti.gov/bridge/servlets/purl/1033025/"
"Weatherization Innovation Pilot Program: Program Overview and Philadelphia Project Highlight (Fact Sheet)","Not Available","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","WIPP; WAP; CEO; WEATHERIZATION AGENCIES; LOW-INCOME; Energy Efficiency and Renewable Energy; Deployment and Industrial Partnerships; Deployment and Market Transformation","Case Study with WIPP program overview, information regarding eligibility, and successes from Pennsylvania's Commission on Economic Opportunity (CEO) that demonstrate innovative approaches that maximize the benefit of the program.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Weatherization and Intergovernmental Program","United States","English","Technical Report","","Related Information: Weatherization And Intergovernmental Programs (WIP)","","Medium: ED; Size: 2 pp.","OSTI ID: 1033026","DOE/GO-102012-3498","AC36-08GO28308","","NREL","","2012-01-19","1033026","http://www.osti.gov/bridge/servlets/purl/1033026/"
"Platform Li-Ion Battery Risk Assessment Tool: Cooperative Research and Development Final Report, CRADA Number CRD-10-407","Smith, K.","25 ENERGY STORAGE","CRADA","Creare was awarded a Phase 1 STTR contract from the US Office of Naval Research, with a seven month period of performance from 6/28/2010 to 1/28/2011. The objectives of the STTR were to determine the feasibility of developing a software package for estimating reliability of battery packs, and develop a user interface to allow the designer to assess the overall impact on battery packs and host platforms for cell-level faults. NREL served as sub-tier partner to Creare, providing battery modeling and battery thermal safety expertise.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Energy Efficiency and Renewable Energy","United States","English","Technical Report","","","","Medium: ED; Size: 4 pp.","OSTI ID: 1033029","NREL/TP-7A10-53587","AC36-08GO28308","","NREL","","2012-01-19","1033029","http://www.osti.gov/bridge/servlets/purl/1033029/"
"Examination of Na-Doped Mo Sputtering for CIGS Devices: Cooperative Research and Development Final Report, CRADA Number CRD-10-375","Repins, I.","14 SOLAR ENERGY; 36 MATERIALS SCIENCE","CRADA","This work has investigated the use of Na doped Mo (MONA) sputtering targets for use in preparing CIGS devices. The Mo:Na material is doped to about 3% Na by weight, implying that a 40 nm layer on top of the standard Mo contact contains sufficient Na to dope a 2.5 ..mu..m CIGS film. The ability to control Na doping independent of both CIGS processing conditions and adhesion is an important gain for industry and research. Manufacturers gain a route to increased manufacturability and performance, while NREL researchers gain a tightened performance distribution of devices and increased process flexibility. Our immediate partner in this work, the Climax Molybdenum Technology Center, gains validation of their product.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Solar Energy Technologies Program","United States","English","Technical Report","","","","Medium: ED; Size: 4 pp.","OSTI ID: 1033030","NREL/TP-7A10-53586","AC36-08GO28308","","NREL","","2012-01-19","1033030","http://www.osti.gov/bridge/servlets/purl/1033030/"
"NREL Collaborates to Improve Wind Turbine Technology (Fact Sheet)","Not Available","17 WIND ENERGY","NREL HIGHLIGHT; WIND; GEARBOX RELIABILITY; GRC; WIND TURBINE; Wind Energy","NREL's Gearbox Reliability Collaborative leads to wind turbine gearbox reliability, lowering the cost of energy.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Wind and Water Power Program","United States","English","Technical Report","","Related Information: NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)","","Medium: ED; Size: 1 pg.","OSTI ID: 1033032","NREL/FS-5000-53584","AC36-08GO28308","","NREL","","2012-01-19","1033032","http://www.osti.gov/bridge/servlets/purl/1033032/"
"Integrated PEV Charging Solutions and Reduced Energy for Occupant Comfort (Brochure)","Not Available","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 33 ADVANCED PROPULSION SYSTEMS","TRANSPORTATION; CTTS; VTIF; VEHICLE; ELECTRIC VEHICLE; EV; LIGHT-DUTY; HEAVY-DUTY; MEDIUM-DUTY; GRID; INTEGRATION; LEED; ENERGY; EVSE; V2G; CLIMATE CONTROL; THERMAL; RECHARGE; TESTING; ANALYSIS; Transportation","Brochure on Vehicle Testing and Integration Facility, featuring the Vehicle Modification Facility, Vehicle Test Pad and RECharge Integrated Demonstration System.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Vehicle Technologies Program","United States","English","Technical Report","","Related Information: Vehicle Testing and Integration Facility (VTIF)","","Medium: ED; Size: 4 pp.","OSTI ID: 1033034","NREL/BR-5400-53297","AC36-08GO28308","","NREL","","2012-01-19","1033034","http://www.osti.gov/bridge/servlets/purl/1033034/"
"Solar Ready: An Overview of Implementation Practices","Watson, A.; Guidice, L.; Lisell, L.; Doris, L.; Busche, S.","14 SOLAR ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","SOLAR READY; BUILDING; IMPLEMENTATION; LEGISLATION; POLICY; CERTIFICATION; TRADE ORGANIZATION; SOLAR BARRIER; SOLAR DEPLOYMENT; ORIENTATION; ROOF; RESIDENTIAL; COMMERCIAL; Integrated Applications; Solar Energy - General","This report explores three mechanisms for encouraging solar ready building design and construction: solar ready legislation, certification programs for solar ready design and construction, and stakeholder education. These methods are not mutually exclusive, and all, if implemented well, could contribute to more solar ready construction.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Solar Energy Technologies Program","United States","English","Technical Report","","","","Medium: ED; Size: 42 pp.","OSTI ID: 1033035","NREL/TP-7A40-51296","AC36-08GO28308","","NREL","","2012-01-19","1033035","http://www.osti.gov/bridge/servlets/purl/1033035/"
"Long-Term Wind Power Variability","Wan, Y. H.","17 WIND ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","WIND POWER PLANTS; WIND POWER; RENEWABLE ENERGY; VARIABILITY; VARIABLE GENERATION; NATIONAL RENEWABLE ENERGY LABORATORY; NREL; Wind Energy","The National Renewable Energy Laboratory started collecting wind power data from large commercial wind power plants (WPPs) in southwest Minnesota with dedicated dataloggers and communication links in the spring of 2000. Over the years, additional WPPs in other areas were added to and removed from the data collection effort. The longest data stream of actual wind plant output is more than 10 years. The resulting data have been used to analyze wind power fluctuations, frequency distribution of changes, the effects of spatial diversity, and wind power ancillary services. This report uses the multi-year wind power data to examine long-term wind power variability.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Wind and Water Power Program","United States","English","Technical Report","","","","Medium: ED; Size: 39 pp.","OSTI ID: 1033036","NREL/TP-5500-53637","AC36-08GO28308","","NREL","","2012-01-19","1033036","http://www.osti.gov/bridge/servlets/purl/1033036/"
"Sustainable Energy Resources for Consumers (SERC) Vermont Highlight (Fact Sheet)","Not Available","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","WIP; WAP; SERC; CEO; WEATHERIZATION AGENCIES; Energy Efficiency and Renewable Energy; Deployment and Industrial Partnerships; Deployment and Market Transformation","Case study on Vermont's innovative strategy for helping low-income families save energy through its Sustainable Energy Resources for Consumers (SERC) program.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Weatherization and Intergovernmental Program","United States","English","Technical Report","","Related Information: Weatherization And Intergovernmental Program (WIP)","","Medium: ED; Size: 2 pp.","OSTI ID: 1033037","DOE/GO-102012-3497","AC36-08GO28308","","NREL","","2012-01-19","1033037","http://www.osti.gov/bridge/servlets/purl/1033037/"
"Feasibility Study of Economics and Performance of Solar Photovoltaics at Johnson County Landfill","Salasovich, J.; Mosey, G.","14 SOLAR ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","LANDFILL REDEVELOPMENT; SOLAR PV INSTALLATIONS ON LANDFILL; JOHNSON COUNTY KANSAS SHAWNEE; RENEWABLE ENERGY PRODUCTION ON OLD LANDFILLS; Energy Analysis","The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Johnson County Landfill in Shawnee, Kansas, for a feasibility study of renewable energy production. Citizens of Shawnee, city planners, and site managers are interested in redevelopment uses for landfills in Kansas that are particularly well suited for grid-tied solar photovoltaic (PV) installation. This report assesses the Johnson County Landfill for possible grid-tied PV installations and estimates the cost, performance, and site impacts of three different PV options: crystalline silicon (fixed tilt), crystalline silicon (single-axis tracking), and thin film (fixed tilt). Each option represents a standalone system that can be sized to use an entire available site area. In addition, the report outlines financing options that could assist in the implementation of a system. The feasibility of PV systems installed on landfills is highly impacted by the available area for an array, solar resource, operating status, landfill cap status, distance to transmission lines, and distance to major roads. The report findings are applicable to other landfills in the surrounding area.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","US Environment Protection Agency","United States","English","Technical Report","","","","Medium: ED; Size: 54 pp.","OSTI ID: 1033038","NREL/TP-6A20-53186","AC36-08GO28308","","NREL","","2012-01-19","1033038","http://www.osti.gov/bridge/servlets/purl/1033038/"
"NREL Improves Building Energy Simulation Programs Through Diagnostic Testing (Fact Sheet)","Not Available","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","BUILDING ENERGY EFFICIENCY; BESTEST-EX; ENERGY ANALYSIS TOOL; Electricity, Resources, and Buildings Systems; Buildings; Building America","This technical highlight describes NREL research to develop Building Energy Simulation Test for Existing Homes (BESTEST-EX) to increase the quality and accuracy of energy analysis tools for the building retrofit market.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Building Technologies Program","United States","English","Technical Report","","Related Information: Building America: Technical Highlight, Building Technologies Program (BTP)","","Medium: ED; Size: 2 pp.","OSTI ID: 1033040","DOE/GO-102012-3501","AC36-08GO28308","","NREL","","2012-01-19","1033040","http://www.osti.gov/bridge/servlets/purl/1033040/"
"Extracting Operating Modes from Building Electrical Load Data: Preprint","Frank, S.; Polese, L. G.; Rader, E.; Sheppy, M.; Smith, J.","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","BUILDINGS; CLUSTERING; MISCELLANEOUS ELECTRICAL LOAD; MODE EXTRACTION; SYSTEM CHARACTERIZATION; Electricity, Resources, and Buildings Systems; Buildings","Empirical techniques for characterizing electrical energy use now play a key role in reducing electricity consumption, particularly miscellaneous electrical loads, in buildings. Identifying device operating modes (mode extraction) creates a better understanding of both device and system behaviors. Using clustering to extract operating modes from electrical load data can provide valuable insights into device behavior and identify opportunities for energy savings. We present a fast and effective heuristic clustering method to identify and extract operating modes in electrical load data.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Buildings Technology Program","United States","English","Conference","","","","Medium: ED; Size: 8 pp.","OSTI ID: 1033442","NREL/CP-5500-49636","AC36-08GO28308","","NREL","","2012-01-23","1033442","http://www.osti.gov/bridge/servlets/purl/1033442/"
"Large-Eddy Simulation of Wind-Plant Aerodynamics: Preprint","Churchfield, M. J.; Lee, S.; Moriarty, P. J.; Martinez, L. A.; Leonardi, S.; Vijayakumar, G.; Brasseur, J. G.","17 WIND ENERGY","WIND PLANT AERODYNAMICS; WIND FARM AERODYNAMICS; LARGE-EDDY SIMULATION; WIND TURBINE; ATMOSPHERIC TURBULENCE; Wind Energy","In this work, we present results of a large-eddy simulation of the 48 multi-megawatt turbines composing the Lillgrund wind plant. Turbulent inflow wind is created by performing an atmospheric boundary layer precursor simulation and turbines are modeled using a rotating, variable-speed actuator line representation. The motivation for this work is that few others have done wind plant large-eddy simulations with a substantial number of turbines, and the methods for carrying out the simulations are varied. We wish to draw upon the strengths of the existing simulations and our growing atmospheric large-eddy simulation capability to create a sound methodology for performing this type of simulation. We have used the OpenFOAM CFD toolbox to create our solver.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Wind and Water Power Program","United States","English","Conference","","Conference: Presented at the 50th AIAA Aerospace Sciences Meeting, 9-12 January 2012, Nashville, Tennessee","","Medium: ED; Size: 21 pp.","OSTI ID: 1033443","NREL/CP-5000-53554","AC36-08GO28308","","NREL","","2012-01-23","1033443","http://www.osti.gov/bridge/servlets/purl/1033443/"
"Turbine Inflow Characterization at the National Wind Technology Center: Preprint","Clifton, A.; Schreck, S.; Scott, G.; Kelley, N.; Lundquist, J.","17 WIND ENERGY","NWTC; NATIONAL WIND TECHNOLOGY CENTER; TURBINE INFLOW; WIND; TURBULENCE; ATMOSPHERIC SCIENCE; ATMOSPHERIC STABILITY; POWER SPECTRA; MEASUREMENT METHODS; Wind Energy","Utility-scale wind turbines operate in dynamic flows that can vary significantly over timescales from less than a second to several years. To better understand the inflow to utility-scale turbines, two inflow towers were installed and commissioned at the National Renewable Energy Laboratory's (NREL) National Wind Technology Center near Boulder, Colorado, in 2011. These towers are 135 m tall and instrumented with a combination of sonic anemometers, cup anemometers, wind vanes, and temperature measurements to characterize the inflow wind speed and direction, turbulence, stability and thermal stratification to two utility-scale turbines. Herein, we present variations in mean and turbulent wind parameters with height, atmospheric stability, and as a function of wind direction that could be important for turbine operation as well as persistence of turbine wakes. Wind speed, turbulence intensity, and dissipation are all factors that affect turbine performance. Our results shown that these all vary with height across the rotor disk, demonstrating the importance of measuring atmospheric conditions that influence wind turbine performance at multiple heights in the rotor disk, rather than relying on extrapolation from lower levels.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Wind and Water Power Program","United States","English","Conference","","Conference: Presented at the 50th AIAA Aerospace Sciences Meeting, 9-12 January 2012, Nashville, Tennessee","","Medium: ED; Size: 23 pp.","OSTI ID: 1033446","NREL/CP-5000-53525","AC36-08GO28308","","NREL","","2012-01-23","1033446","http://www.osti.gov/bridge/servlets/purl/1033446/"
"Western Region Renewable Energy Markets: Implications for the Bureau of Land Management","Haase, S.; Billman, L.; Gelman, R.","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","RENEWABLE ENERGY; GENERATION; MARKET; ANALYSIS; TRANSMISSION; BUREAU OF LAND MANAGEMENT; BLM; WESTERN ELECTRICITY COORDINATING COUNCIL; WECC; 1603; RENEWABLE PORTFOLIO STANDARDS; RPS; DEMAND; PROJECTIONS; CAPACITY; Energy Analysis","The purpose of this analysis is to provide the U.S. Department of the Interior (DOI) and the Bureau of Land Management (BLM) with an overview of renewable energy (RE) generation markets, transmission planning efforts, and the ongoing role of the BLM RE projects in the electricity markets of the 11 states (Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming) that comprise the Western Electricity Coordinating Council (WECC) Region. This analysis focuses on the status of, and projections for, likely development of non-hydroelectric renewable electricity from solar (including photovoltaic [PV] and concentrating solar power [CSP]), wind, biomass and geothermal resources in these states. Absent new policy drivers and without the extension of the DOE loan guarantee program and Treasury?s 1603 program, state RPS requirements are likely to remain a primary driver for new RE deployment in the western United States. Assuming no additional policy incentives are implemented, projected RE demand for the WECC states by 2020 is 134,000 GWh. Installed capacity to meet that demand will need to be within the range of 28,000-46,000 MW.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","US Bureau of Land Management","United States","English","Technical Report","","","","Medium: ED; Size: 58 pp.","OSTI ID: 1033440","NREL/TP-6A20-53540","AC36-08GO28308","","NREL","","2012-01-26","1033440","http://www.osti.gov/bridge/servlets/purl/1033440/"
"NREL Evaluates the Thermal Performance of Uninsulated Walls to Improve the Accuracy of Building Energy Simulation Tools (Fact Sheet)","Not Available","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","COMPUTATIONAL FLUID DYNAMICS; BUILDING ENERGY SIMULATION TOOLS; BUILDING ENVELOPE; Electricity, Resources, and Buildings Systems; Buildings; Building America","This technical highlight describes NREL research to develop models of uninsulated wall assemblies that help to improve the accuracy of building energy simulation tools when modeling potential energy savings in older homes.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Building Technologies Program","United States","English","Technical Report","","Related Information: Building America: Technical Highlight, Building Technologies Program (BTP)","","Medium: ED; Size: 2 pp.","OSTI ID: 1033441","DOE/GO-102012-3420","AC36-08GO28308","","NREL","","2012-01-26","1033441","http://www.osti.gov/bridge/servlets/purl/1033441/"
"Improving PbS Quantum Dot Solar Cell Power Conversion Efficiency to an NREL-Certified 4.4% (Fact Sheet)","Not Available","14 SOLAR ENERGY; 77 NANOSCIENCE AND NANOTECHNOLOGY","NREL HIGHLIGHT; QUANTUM DOT; QD; TRANSITION METAL OXIDE; TMO; Chemical and Material Sciences","Transition metal oxide improves overall efficiency and maintains performance with inexpensive metals.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Science","United States","English","Technical Report","","Related Information: NREL Highlights, Science, NREL (National Renewable Energy Laboratory)","","Medium: ED; Size: 1 pg.","OSTI ID: 1033445","NREL/FS-5900-53382","AC36-08GO28308","","NREL","","2012-01-26","1033445","http://www.osti.gov/bridge/servlets/purl/1033445/"
"NREL Provides Guidance to Improve Thermal Comfort in High-Performance Homes (Fact Sheet)","Not Available","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","HEATING, COOLING; HVAC; HIGH SIDEWALL SUPPLY AIR JETS; AIR DISTRIBUTION SYSTEMS; Electricity, Resources, and Buildings Systems; Buildings; Building America","This technical highlight describes NREL research to develop recommendations on HVAC system design and operating conditions to achieve optimal thermal comfort in high-performance homes.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Building Technologies Program","United States","English","Technical Report","","Related Information: Building America: Technical Highlight, Building Technologies Program (BTP)","","Medium: ED; Size: 2 pp.","OSTI ID: 1033447","DOE/GO-102012-3492","AC36-08GO28308","","NREL","","2012-01-26","1033447","http://www.osti.gov/bridge/servlets/purl/1033447/"
"Gearbox Reliability Collaborative Update: A Brief (Presentation)","Sheng, S.; Keller, J.; McDade, M.","17 WIND ENERGY","GEARBOX RELIABILITY COLLABORATIVE; GRC; WIND TURBINE; OPERATIONS, MAINTENANCE & RELIABILITY; Wind Energy","This presentation is an update on the Gearbox Reliability Collaborative for the AWEA Wind Project Operations, Maintenance & Reliability Seminar.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Wind and Water Power Program","United States","English","Conference","","Conference: Presented at the AWEA Wind Project Operations, Maintenance & Reliability Seminar, 10-11 January 2012, San Diego, California; Related Information: NREL (National Renewable Energy Laboratory)","","Medium: ED; Size: 17 pp.","OSTI ID: 1033819","NREL/PR-5000-53804","AC36-08GO28308","","NREL","","2012-01-30","1033819","http://www.osti.gov/bridge/servlets/purl/1033819/"
"Solar Water Heating with Low-Cost Plastic Systems (Brochure)","Not Available","14 SOLAR ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION","LOW-COST; SWH; SHW; HOT WATER; WATER HEAT; Federal Energy Management Program; Integrated Applications","Newly developed solar water heating technology can help Federal agencies cost effectively meet the EISA requirements for solar water heating in new construction and major renovations. This document provides design considerations, application, economics, and maintenance information and resources.","","","National Renewable Energy Laboratory (NREL), Golden, CO.","USDOE Office of Federal Energy Management Program","United States","English","Technical Report","","Related Information: Federal Energy Management Program (FEMP)","","Medium: ED; Size: 24 pp.","OSTI ID: 1033815","DOE/GO-102012-3177","AC36-08GO28308","","NREL","","2012-02-02","1033815","http://www.osti.gov/bridge/servlets/purl/1033815/"