Sample records for microwave model nrel

  1. NREL: Systems Engineering - Models and Tools

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

    and Tools The NREL Systems Engineering Initiative develops, integrates, and analyzes wind energy system models. NREL has developed an overall integrated system analysis tool...

  2. NREL: News - NREL Model Licensed to Improve Accuracy of Battery...

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

    the development of next generation electric-drive vehicle batteries," NREL Energy Storage Group Manager Ahmad Pesaran said. "By adding this model to their software package,...

  3. NREL Helps Greensburg Set the Model for Green Communities (Fact...

    Office of Environmental Management (EM)

    NREL Helps Greensburg Set the Model for Green Communities (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory) NREL Helps...

  4. NREL's System Advisor Model Simplifies Complex Energy Analysis...

    Office of Scientific and Technical Information (OSTI)

    NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet) Re-direct Destination: NREL has developed a tool -- the System Advisor Model (SAM) -- that can help...

  5. Geothermal: Sponsored by OSTI -- NREL's System Advisor Model...

    Office of Scientific and Technical Information (OSTI)

    NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet) Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic...

  6. NREL Helps Greensburg Set the Model for Green Communities (Fact...

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

    U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. innovati n NREL Helps Greensburg Set the Model...

  7. Generic CSP Performance Model for NREL's System Advisor Model: Preprint

    SciTech Connect (OSTI)

    Wagner, M. J.; Zhu, G.

    2011-08-01T23:59:59.000Z

    The suite of concentrating solar power (CSP) modeling tools in NREL's System Advisor Model (SAM) includes technology performance models for parabolic troughs, power towers, and dish-Stirling systems. Each model provides the user with unique capabilities that are catered to typical design considerations seen in each technology. Since the scope of the various models is generally limited to common plant configurations, new CSP technologies, component geometries, and subsystem combinations can be difficult to model directly in the existing SAM technology models. To overcome the limitations imposed by representative CSP technology models, NREL has developed a 'Generic Solar System' (GSS) performance model for use in SAM. This paper discusses the formulation and performance considerations included in this model and verifies the model by comparing its results with more detailed models.

  8. innovati nNREL Computer Models Integrate Wind Turbines with

    E-Print Network [OSTI]

    innovati nNREL Computer Models Integrate Wind Turbines with Floating Platforms Far off the shores for today's seabed-mounted offshore wind turbines. For the United States to tap into these vast offshore wind energy resources, wind turbines must be mounted on floating platforms to be cost effective

  9. NREL: Transmission Grid Integration - Generator Modeling

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOtherForecasting NREL researchers use solar

  10. NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    NREL has developed a tool -- the System Advisor Model (SAM) -- that can help decision makers analyze cost, performance, and financing of any size grid-connected solar, wind, or geothermal power project. Manufacturers, engineering and consulting firms, research and development firms, utilities, developers, venture capital firms, and international organizations use SAM for end-to-end analysis that helps determine whether and how to make investments in renewable energy projects.

  11. Detailed Physical Trough Model for NREL's Solar Advisor Model: Preprint

    SciTech Connect (OSTI)

    Wagner, M. J.; Blair, N.; Dobos, A.

    2010-10-01T23:59:59.000Z

    Solar Advisor Model (SAM) is a free software package made available by the National Renewable Energy Laboratory (NREL), Sandia National Laboratory, and the US Department of Energy. SAM contains hourly system performance and economic models for concentrating solar power (CSP) systems, photovoltaic, solar hot-water, and generic fuel-use technologies. Versions of SAM prior to 2010 included only the parabolic trough model based on Excelergy. This model uses top-level empirical performance curves to characterize plant behavior, and thus is limited in predictive capability for new technologies or component configurations. To address this and other functionality challenges, a new trough model; derived from physical first principles was commissioned to supplement the Excelergy-based empirical model. This new 'physical model' approaches the task of characterizing the performance of the whole parabolic trough plant by replacing empirical curve-fit relationships with more detailed calculations where practical. The resulting model matches the annual performance of the SAM empirical model (which has been previously verified with plant data) while maintaining run-times compatible with parametric analysis, adding additional flexibility in modeled system configurations, and providing more detailed performance calculations in the solar field, power block, piping, and storage subsystems.

  12. NREL Energy Models Examine the Potential for Wind and Solar Grid Integration (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01T23:59:59.000Z

    As renewable energy generating sources, such as wind turbines and solar power systems, reach high levels of penetration in parts of the United States, the National Renewable Energy Laboratory (NREL) is helping the utility industry to peer into the future. Using software modeling tools that the lab developed, NREL is examining the future operation of the electrical grid as renewable energy continues to grow.

  13. Modeling Tomorrow's Biorefinery--the NREL Biochemical Pilot Plant

    SciTech Connect (OSTI)

    Not Available

    2008-03-01T23:59:59.000Z

    Brochure describing the capabilities of NREL's Biochemical Pilot Plant. In this facility, researchers test ideas for creating high-value products from cellulosic biomass.

  14. NREL Software Models Performance of Wind Plants (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    This NREL Highlight is being developed for the 2015 February Alliance S&T Meeting, and describes NREL's Simulator for Offshore Wind Farm Applications (SOWFA) software in collaboration with Norway-based Statoil, to optimize layouts and controls of wind plants arrays.

  15. NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01T23:59:59.000Z

    The energy market is diversifying. In addition to traditional power sources, decision makers can choose among solar, wind, and geothermal technologies as well. Each of these technologies has complex performance characteristics and economics that vary with location and other project specifics, making it difficult to analyze the viability of such projects. But that analysis is easier now, thanks to the National Renewable Energy Laboratory (NREL).

  16. Using HOMER Software, NREL's Micropower Optimization Model, to Explore the Role of Gen-sets in Small Solar Power Systems; Case Study: Sri Lanka

    SciTech Connect (OSTI)

    Givler, T.; Lilienthal, P.

    2005-05-01T23:59:59.000Z

    This paper discusses using HOMER Software, NREL's Micropower Optimization Model, to explore the role of gen-sets in small solar power systems in Sri Lanka.

  17. NREL Computer Models Integrate Wind Turbines with Floating Platforms (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01T23:59:59.000Z

    Far off the shores of energy-hungry coastal cities, powerful winds blow over the open ocean, where the water is too deep for today's seabed-mounted offshore wind turbines. For the United States to tap into these vast offshore wind energy resources, wind turbines must be mounted on floating platforms to be cost effective. Researchers at the National Renewable Energy Laboratory (NREL) are supporting that development with computer models that allow detailed analyses of such floating wind turbines.

  18. NREL Helps Greensburg Set the Model for Green Communities (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-10-01T23:59:59.000Z

    After a massive tornado destroyed or severely damaged 95% of Greensburg, Kansas on May 4, 2007, key leaders in Greensburg and Kansas made a crucial decision not just to rebuild, but to remake the town as a model sustainable rural community. To help achieve that goal, experts from the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) arrived in Greensburg in June 2007.

  19. Direct-Steam Linear Fresnel Performance Model for NREL's System Advisor Model

    SciTech Connect (OSTI)

    Wagner, M. J.; Zhu, G.

    2012-09-01T23:59:59.000Z

    This paper presents the technical formulation and demonstrated model performance results of a new direct-steam-generation (DSG) model in NREL's System Advisor Model (SAM). The model predicts the annual electricity production of a wide range of system configurations within the DSG Linear Fresnel technology by modeling hourly performance of the plant in detail. The quasi-steady-state formulation allows users to investigate energy and mass flows, operating temperatures, and pressure drops for geometries and solar field configurations of interest. The model includes tools for heat loss calculation using either empirical polynomial heat loss curves as a function of steam temperature, ambient temperature, and wind velocity, or a detailed evacuated tube receiver heat loss model. Thermal losses are evaluated using a computationally efficient nodal approach, where the solar field and headers are discretized into multiple nodes where heat losses, thermal inertia, steam conditions (including pressure, temperature, enthalpy, etc.) are individually evaluated during each time step of the simulation. This paper discusses the mathematical formulation for the solar field model and describes how the solar field is integrated with the other subsystem models, including the power cycle and optional auxiliary fossil system. Model results are also presented to demonstrate plant behavior in the various operating modes.

  20. High-Speed Shaft Bearing Loads Testing and Modeling in the NREL Gearbox Reliability Collaborative: Preprint

    SciTech Connect (OSTI)

    McNiff, B.; Guo, Y.; Keller, J.; Sethuraman, L.

    2014-12-01T23:59:59.000Z

    Bearing failures in the high speed output stage of the gearbox are plaguing the wind turbine industry. Accordingly, the National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) has performed an experimental and theoretical investigation of loads within these bearings. The purpose of this paper is to describe the instrumentation, calibrations, data post-processing and initial results from this testing and modeling effort. Measured HSS torque, bending, and bearing loads are related to model predictions. Of additional interest is examining if the shaft measurements can be simply related to bearing load measurements, eliminating the need for invasive modifications of the bearing races for such instrumentation.

  1. NREL: Sustainable NREL - About

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

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  2. NREL: Sustainable NREL - Cafeteria

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

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  3. NREL: Sustainable NREL - News

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

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  4. NREL: Sustainable NREL - Transportation

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

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  5. NREL: Sustainable NREL - Webmaster

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

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  6. Contacts | NREL

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

    list of important phone numbers. Contact a Staff Member at NREL Our searchable staff directory has contact information for staff. Questions or Comments? Please use our feedback...

  7. DOD/NREL Model Integrates Vehicles, Renewables & Microgrid (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01T23:59:59.000Z

    Fact sheet on microgrid model created by the Electric Vehicle Grid Integration program at the Fort Carson Army facility.

  8. NREL Develops Heat Pump Water Heater Simulation Model (Fact Sheet)

    SciTech Connect (OSTI)

    Hudon, K.

    2012-05-01T23:59:59.000Z

    A new simulation model helps researchers evaluate real-world impacts of heat pump water heaters in U.S. homes.

  9. NREL: Jobs and Economic Development Impact (JEDI) Models - Help

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

    Help The Jobs and Economic Development Impact (JEDI) model uses a Microsoft Excel (MS Excel) spreadsheet. MS Excel Tips Macros must to be enabled in MS Excel for JEDI to operate...

  10. NREL's Building Component Library for Use with Energy Models

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

    The Building Component Library (BCL) is the U.S. Department of Energy’s comprehensive online searchable library of energy modeling building blocks and descriptive metadata. Novice users and seasoned practitioners can use the freely available and uniquely identifiable components to create energy models and cite the sources of input data, which will increase the credibility and reproducibility of their simulations. The BCL contains components which are the building blocks of an energy model. They can represent physical characteristics of the building such as roofs, walls, and windows, or can refer to related operational information such as occupancy and equipment schedules and weather information. Each component is identified through a set of attributes that are specific to its type, as well as other metadata such as provenance information and associated files. The BCL also contains energy conservation measures (ECM), referred to as measures, which describe a change to a building and its associated model. For the BCL, this description attempts to define a measure for reproducible application, either to compare it to a baseline model, to estimate potential energy savings, or to examine the effects of a particular implementation. The BCL currently contains more than 30,000 components and measures. A faceted search mechanism has been implemented on the BCL that allows users to filter through the search results using various facets. Facet categories include component and measure types, data source, and energy modeling software type. All attributes of a component or measure can also be used to filter the results.

  11. JEDI: Jobs and Economic Development Impacts Model, National Renewable Energy Laboratory (NREL) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-12-01T23:59:59.000Z

    The Jobs and Economic Development Impact (JEDI) models are user-friendly tools that estimate the economic impacts of constructing and operating power generation and biofuel plants at the local (usually state) level. First developed by NREL's Wind Powering America program to model wind energy jobs and impacts, JEDI has been expanded to biofuels, concentrating solar power, coal, and natural gas power plants. Based on project-specific and default inputs (derived from industry norms), JEDI estimates the number of jobs and economic impacts to a local area (usually a state) that could reasonably be supported by a power generation project. For example, JEDI estimates the number of in-state construction jobs from a new wind farm. This fact sheet provides an overview of the JEDI model as it pertains to wind energy projects.

  12. Process Design of Wastewater Treatment for the NREL Cellulosic Ethanol Model

    SciTech Connect (OSTI)

    Steinwinder, T.; Gill, E.; Gerhardt, M.

    2011-09-01T23:59:59.000Z

    This report describes a preliminary process design for treating the wastewater from NREL's cellulosic ethanol production process to quality levels required for recycle. In this report Brown and Caldwell report on three main tasks: 1) characterization of the effluent from NREL's ammonia-conditioned hydrolyzate fermentation process; 2) development of the wastewater treatment process design; and 3) development of a capital and operational cost estimate for the treatment concept option. This wastewater treatment design was incorporated into NREL's cellulosic ethanol process design update published in May 2011 (NREL/TP-5100-47764).

  13. NREL: Sustainable NREL - Education Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resource

  14. Mathematical and experimental modelling of heat pump assisted microwave drying

    SciTech Connect (OSTI)

    Xiguo Jia (Univ. of Queensland (Australia))

    1993-01-01T23:59:59.000Z

    Drying is one of the most energy intensive operations in industry and agriculture. In the quest to increase drying efficiency and product quality, new technologies and methods are constantly being sought. Of these technologies, heat pump assisted drying and microwave drying have proved to be the most promising contenders. In order to achieve a better understanding and provide a computer design tool for heat pump assisted convective and microwave drying, both mathematical modelling and experimental investigations of heat pump assisted microwave dryers have been undertaken in this study. A mathematical model has been developed to predict the steady-state performance of a heat pump assisted continuous microwave dryer, with emphasis on the simulation of heat and mass transfer processes in the evaporator and drying chamber. The model is intend to serve as a design tool in the study of heat pump dryers. To achieve the optimum design, the influences of the key design and operating parameters, as well as the comparison of different drying configurations, have been examined. Based on investigation results, several methods have been proposed to improve the performance of heat pump assisted microwave drying, such as the use of a recuperator. To validate the above mathematical model, extensive drying tests using foam rubber as the test material have been conducted on a prototype heat pump assisted microwave dryer. The prototype heat pump input power was 5 kW with a maximum microwave input power of 10 kW. The experimental performance data confirmed the veracity of the simulation model. The experimental results on drying test materials indicate that with careful design heat pump assisted microwave drying is comparable to convective drying in energy consumption while with a much higher drying speed.

  15. NREL: Sustainable NREL - NREL Handbook Helps Industry Collect...

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

    NREL Handbook Helps Industry Collect and Interpret Solar Resource Data for Solar Energy Applications Comprehensive handbook is a valuable resource for the solar industry on the...

  16. NREL in the Community | NREL

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

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  17. NREL: Sustainable NREL - Community Benefits

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

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  18. NREL: Sustainable NREL - Environmental Stewardship

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

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  19. NREL: Sustainable NREL - Parking Garage

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

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  20. NREL: Sustainable NREL - RSF Rendering

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

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  1. NREL: Sustainable NREL - Sustainable Buildings

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy

  2. NREL: Sustainable NREL - Water Efficiency

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

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  3. NREL: Sustainable NREL -Green Purchasing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergyTransportation

  4. NREL: Technology Deployment - NREL Report Identifies Research...

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

    2014 NREL and Argonne National Laboratory have published a new report, Evolution of Wholesale Electricity Market Design with Increasing Levels of Renewable Generation. This...

  5. Partnering with NREL

    SciTech Connect (OSTI)

    Not Available

    2011-08-01T23:59:59.000Z

    An overview for industry and organizations about NREL's partnering opportunities including information about technology partnership agreements and technical area contacts.

  6. Beetle Kill Wall at NREL

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    When it comes to designing an interior decorative feature for one of the most energy efficient office buildings in the world, very few would consider bringing in a beetle to do the job. But thats what happened at the U.S. Department of Energy's (DOE) Research Support Facility (RSF) located on the National Renewable Energy Laboratory (NREL) campus.In June, the RSF will become home to more than 800 workers from DOE and NREL and building visitors will be greeted with a soaring, two-story high wall entirely covered with wood harvested from the bark beetle infestation that has killed millions of pine trees in the Western U.S. But, the use of beetle kill wood is just one example of the resources being leveraged to make the RSF a model for sustainability and one more step toward NRELs goal to be a net zero energy campus.

  7. NREL: Transmission Grid Integration - Western Wind Dataset

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

    the stochastic nature of wind plant output. NREL modeled hysteresis around wind turbine cut-out to further replicate how real wind plants operate. 3TIER has completed a...

  8. NREL: Biomass Research - Chemical and Catalyst Science Projects

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

    develop and validate gasification process models. NREL uses chemical analysis to study biomass-derived products online during the conversion process. Catalysts are used in the...

  9. Sandia National Laboratories: Sandia, NREL Release Wave Energy...

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

    for International Smart Grid Action Network 2014 Award of Excellence Sandia, NREL Release Wave Energy Converter Modeling and Simulation Code: WEC-Sim On July 29, 2014, in...

  10. NREL: News - NREL Director Arvizu Elected to National Academy...

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

    has served as director of NREL since 2005. He also is president of the Alliance for Sustainable Energy, LLC, which manages and operates NREL for the Energy Department. As NREL's...

  11. NREL: News - NREL Study: Active Power Control of Wind Turbines...

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

    414 NREL Study: Active Power Control of Wind Turbines Can Improve Power Grid Reliability January 20, 2014 The Energy Department's National Renewable Energy Laboratory (NREL), along...

  12. NREL: News - NREL Announces Participants in National Executive...

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

    NREL Announces Participants in National Executive Education Program May 12, 2014 The Energy Department's National Renewable Energy Laboratory (NREL) has selected 17 leaders to...

  13. NREL Buildings Research Video

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    Through research, the National Renewable Energy Laboratory (NREL) has developed many strategies and design techniques to ensure both commercial and residential buildings use as little energy as possible and also work well with the surroundings. Here you will find a video that introduces the work of NREL Buildings Research, highlights some of the facilities on the NREL campus, and demonstrates these efficient building strategies. Watch this video to see design highlights of the Science and Technology Facility on the NREL campus?the first Federal building to be LEED® Platinum certified. Additionally, the video demonstrates the energy-saving features of NRELs Thermal Test Facility. For a text version of this video visit http://www.nrel.gov/buildings/about_research_text_version.html

  14. Wind Integration Datasets from the National Renewable Energy Laboratory (NREL)

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

    The Wind Integration Datasets provide time-series wind data for 2004, 2005, and 2006. They are intended to be used by energy professionals such as transmission planners, utility planners, project developers, and university researchers, helping them to perform comparisons of sites and estimate power production from hypothetical wind plants. NREL cautions that the information from modeled data may not match wind resource information shown on NREL;s state wind maps as they were created for different purposes and using different methodologies.

  15. NREL: More Search Options

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

    "renewable energy" Tip: use plus signs to find results that contain all your search terms Example: +biodiesel +buses Search Help Find NREL Staff in the Employee Locator Search...

  16. NREL: Wind Research - Events

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

    Events Below are upcoming events related to wind energy technology. January 2015 2015 Wind Energy Systems Engineering Workshop January 14 - 15, 2015 Boulder, CO The third NREL Wind...

  17. NREL 2009 Video

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) located in Golden, Colo., is charting the course with an aggressive plan to position the lab as the pivotal contributor to a new energy economy. NRELs work focuses on advancing renewable energy and energy efficiency technologies from concept to commercialization. The laboratory partners with industry to move technologies to the marketplace.

  18. NREL: News Feature - NREL Interns Look Toward the Future

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

    engineering at the University of Wisconsin. At NREL, she works with a catalytic fast-pyrolysis, tandem micro-reactor to process biomass samples at NREL's Field Test Laboratory...

  19. NREL: News Feature - NREL Uses Industry Best Practices to Add...

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

    NREL Uses Industry Best Practices to Add Partners July 28, 2014 Photo of a man and woman in hard hats inside NREL's Integrated Biorefinery Research Facility. Enlarge image Thanks...

  20. Progressive Dynamical Drive Train Modeling as Part of NREL Gearbox Reliability Collaborative: Preprint

    SciTech Connect (OSTI)

    Oyague, F.

    2008-07-01T23:59:59.000Z

    The Gearbox Reliabiity Collaborative seeks to integrate several numerical models into the wind turbine drive train design process. This paper describes these models.

  1. NREL: A Year in Clean Energy Innovations: A Review of NREL's Feature Stories

    SciTech Connect (OSTI)

    Not Available

    2010-01-01T23:59:59.000Z

    The publication is a compilation of various feature stories published on NREL's public Web site, nrel.gov, throughout 2009.

  2. Incorporation of NREL Solar Advisor Model Photovoltaic Capabilities with GridLAB-D

    SciTech Connect (OSTI)

    Tuffner, Francis K.; Hammerstrom, Janelle L.; Singh, Ruchi

    2012-10-19T23:59:59.000Z

    This report provides a summary of the work updating the photovoltaic model inside GridLAB-D. The National Renewable Energy Laboratory Solar Advisor Model (SAM) was utilized as a basis for algorithms and validation of the new implementation. Subsequent testing revealed that the two implementations are nearly identical in both solar impacts and power output levels. This synergized model aides the system-level impact studies of GridLAB-D, but also allows more specific details of a particular site to be explored via the SAM software.

  3. NREL Smart Grid Projects

    SciTech Connect (OSTI)

    Hambrick, J.

    2012-01-01T23:59:59.000Z

    Although implementing Smart Grid projects at the distribution level provides many advantages and opportunities for advanced operation and control, a number of significant challenges must be overcome to maintain the high level of safety and reliability that the modern grid must provide. For example, while distributed generation (DG) promises to provide opportunities to increase reliability and efficiency and may provide grid support services such as volt/var control, the presence of DG can impact distribution operation and protection schemes. Additionally, the intermittent nature of many DG energy sources such as photovoltaics (PV) can present a number of challenges to voltage regulation, etc. This presentation provides an overview a number of Smart Grid projects being performed by the National Renewable Energy Laboratory (NREL) along with utility, industry, and academic partners. These projects include modeling and analysis of high penetration PV scenarios (with and without energy storage), development and testing of interconnection and microgrid equipment, as well as the development and implementation of advanced instrumentation and data acquisition used to analyze the impacts of intermittent renewable resources. Additionally, standards development associated with DG interconnection and analysis as well as Smart Grid interoperability will be discussed.

  4. Researchers at the National Renewable Energy Laboratory (NREL) develop a new complex modeling and analysis tool

    E-Print Network [OSTI]

    and analysis tool capable of analyzing floating platform concepts for offshore wind turbines. The new modeling tool combines the computational methodologies used to analyze land-based wind turbines dynamic simulation tool will enable the development of cost-effective offshore technologies capable

  5. NREL's Hydrogen Program

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    The research and development taking place today at the National Renewable Energy Laboratory (NREL) is paving the way for nature's most plentiful element—hydrogen—to power the next generation. NREL researchers are working to unlock the potential of hydrogen and to advance the fuel cell technologies that will power the automobiles, equipment, and buildings of tomorrow. Hydrogen and fuel cells are a fundamental part of the broader portfolio of renewable technologies that are moving our nation toward its goals of energy independence and sustainability.

  6. Sandia National Laboratories: NREL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive SolarEducationStation TechnologyWindInternationalbyNREL Sandia and NREL

  7. NREL Spectrum of Innovation

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    There are many voices calling for a future of abundant clean energy. The choices are difficult and the challenges daunting. How will we get there? The National Renewable Energy Laboratory integrates the entire spectrum of innovation including fundamental science, market relevant research, systems integration, testing and validation, commercialization and deployment. The innovation process at NREL is interdependent and iterative. Many scientific breakthroughs begin in our own laboratories, but new ideas and technologies come to NREL at any point along the innovation spectrum to be validated and refined for commercial use.

  8. NREL: Email Contact for NREL Newsroom

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National Nuclearover twoPrintable Version Email Contact for NREL

  9. NREL: Internal NREL GIS Newsletter - Summer Edition

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements ofLiz TorresSolectriaProjectsInternal NREL GIS

  10. NREL: Sustainable NREL - Energy Systems Integration Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy Systems Integration Facility

  11. NREL: Sustainable NREL - Greenhouse Gas Reduction

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy Systems IntegrationGreenhouse

  12. NREL: Sustainable NREL - Integrated Biorefinery Research Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy Systems

  13. NREL: Sustainable NREL - Science and Technology Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy SystemsMediaRSFScience and

  14. NREL: Sustainable NREL - South Entrance Building

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy SystemsMediaRSFScience

  15. NREL: Biomass Research - Ryan M. Ness

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

    Ryan M. Ness Ryan Ness is a research technician with the National Bioenergy Center Biomass Analysis Group at NREL. Ryan has been with NREL since 2007. Ryan's primary...

  16. NREL Publishes Gearbox Reliability Collaborative Findings Report...

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

    NREL Publishes Gearbox Reliability Collaborative Findings Report NREL Publishes Gearbox Reliability Collaborative Findings Report October 3, 2011 - 12:56pm Addthis This is an...

  17. Temperature Modeling for Reaction Development in Microwave-Assisted Chemistry

    E-Print Network [OSTI]

    Yakovlev, Vadim

    made to evaluate and classify the effects of microwave irradiation. While it is commonly acknowledged energy, such as materials processing and food technologies, one can observe an expanding use

  18. NREL: Energy Systems Integration - NREL Handbook Helps Industry...

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

    NREL Handbook Helps Industry Collect and Interpret Solar Resource Data for Solar Energy Applications Comprehensive handbook is a valuable resource for the solar industry on the...

  19. NREL: News - NREL Demonstrates 45.7% Efficiency for Concentrator...

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

    solar cell at 234 suns concentration. This achievement represents one of the highest photovoltaic research cell efficiencies achieved across all types of solar cells. NREL's...

  20. NREL: Solar Research - NREL Handbook Helps Industry Collect and...

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

    NREL Handbook Helps Industry Collect and Interpret Solar Resource Data for Solar Energy Applications Comprehensive handbook is a valuable resource for the solar industry on the...

  1. NREL: News Feature - NREL Looks for Star Science Students

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

    Hughes works on time-resolved photoluminescence spectroscopy in the Laser Lab at NREL's Solar Energy Research Facility as part of the Research Participant Program. Credit: Dennis...

  2. NREL: News - NREL's Industry Growth Forum Brings Together Energy...

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

    4014 NREL's Industry Growth Forum Brings Together Energy Innovators Event recognizes the top clean energy technologies and startup businesses October 30, 2014 The Industry Growth...

  3. NREL: News - NREL to Advance Technologies for Microgrid Projects

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

    resources such as wind and solar energy, combined heat and power, energy storage, and demand response," NREL's Associate Director for Energy Systems Integration Bryan Hannegan...

  4. NREL: Wind Research - NREL Analyzes Floating Offshore Wind Technology...

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

    representatives regarding NREL's analysis of Statoil's Hywind II offshore floating wind turbine design. Statoil's Hywind II is a 6-MW turbine on a floating spar-buoy...

  5. NREL Algal Biofuels Projects and Partnerships (Brochure), NREL...

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

    techno-economic analysis, and analytical method harmonization. Optimization of Biogas Production from Algal Residues via Anaerobic Digestion NREL, together with Washington...

  6. NREL: News - NREL Assembles Industry Group to Explore Solar Lending...

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

    914 NREL Assembles Industry Group to Explore Solar Lending Potential May 7, 2014 Increasingly, banks, credit unions, and other lenders are beginning to offer loan products to...

  7. NREL: Transportation Research Home Page

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

    to heavy-duty freight trucks. Female researcher holding coin cell battery. NREL's transportation research spans from the materials to the systems level. Fuel cell electric sports...

  8. NREL: Biomass Research - Michael Resch

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

    improve the hydrolysis efficiency of cellulase and hemicellulase enzyme digestion of biomass. This work will help NREL lower the industrial cost of lignocellulosic enzyme...

  9. NREL's Building-Integrated Supercomputer Provides Heating and...

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

    NREL's Building-Integrated Supercomputer Provides Heating and Efficient Computing NREL's Building-Integrated Supercomputer Provides Heating and Efficient Computing NREL teamed with...

  10. NREL: News - News Releases

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy153014 NREL

  11. NREL National Bioenergy Center Overview

    SciTech Connect (OSTI)

    None

    2012-01-01T23:59:59.000Z

    The demand for clean, sustainable, secure energy is growing... and the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) is answering the call. NREL's National bioenergy Center is pioneering biofuels research and development and accelerating the pace these technologies move into the marketplace.

  12. Rebuilding Greensburg, Kansas, as a Model Green Community: A Case Study; NREL's Technical Assistance to Greensburg, June 2007-May 2009 (Report and Appendices)

    SciTech Connect (OSTI)

    Billman, L.

    2009-11-01T23:59:59.000Z

    This comprehensive case study describes technical assistance provided by NREL to help Greensburg, Kansas, rebuild as a green community after an EF-5 tornado nearly leveled the town in 2007.

  13. Rebuilding Greensburg, Kansas, as a Model Green Community: A Case Study; NREL's Technical Assistance to Greensburg, June 2007-May 2009; Appendices

    Office of Energy Efficiency and Renewable Energy (EERE)

    This comprehensive case study describes technical assistance provided by NREL to help Greensburg, Kansas, rebuild as a green community after an EF-5 tornado nearly leveled the town in 2007.

  14. NREL: A Year in Clean Energy Innovations, A Review of NREL's 2012 Feature Stories (Book)

    SciTech Connect (OSTI)

    Not Available

    2013-03-01T23:59:59.000Z

    The publication is a compilation of various feature stories published on NREL's public website, nrel.gov, throughout Calendar Year 2012.

  15. NREL: A Year in Clean Energy Innovations: A Review of NREL's Feature Stories, 2010

    SciTech Connect (OSTI)

    Not Available

    2011-04-01T23:59:59.000Z

    The publication is a compilation of various feature stories published on NREL's public website, nrel.gov, throughout Calendar Year 2010.

  16. NREL: A Year in Clean Energy Innovations, A Review of NREL's 2013 Feature Stories (Book)

    SciTech Connect (OSTI)

    Not Available

    2014-02-01T23:59:59.000Z

    The publication is a compilation of various feature stories published on NREL's public website, nrel.gov, throughout Calendar Year 2013.

  17. NREL is a national laboratory of the U.S. Department of Energy, Office

    E-Print Network [OSTI]

    NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. innovati nNREL Helps Greensburg Set, but to remake the town as a model sustainable rural community. To help achieve that goal, experts from the U

  18. Rebuilding Greensburg, Kansas, as a Model Green Community: A...

    Office of Environmental Management (EM)

    National Model for Green Communities (Fact Sheet) NREL Helps Greensburg Set the Model for Green Communities (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL...

  19. Research Advances Cellulosic Ethanol, NREL Leads the Way (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2007-03-01T23:59:59.000Z

    This brochure highlights NREL's recent advances in cellulosic ethanol production. Research at NREL addresses both biochemical and thermochemical processes.

  20. Microalgae bioprospecting at NREL

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    Prospecting for elusive fast-growing, oily microalgae is a soggy, muddy, rewarding job for NREL researcher Lee Elliott. Not only do algae grow in unlikely settings, but their ability to convert the light they receive into biomass has the potential to outperform that of land plants. Trees, grasses and shrubs typically are not very efficient in capturing and converting the sun's energy into biomass, but some algae are believed to be capable of much higher efficiencies, with some scientists thinking ideal strains may be able to approach the maximum theoretical photosynthetic efficiency under the right conditions.

  1. Microalgae bioprospecting at NREL

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    Prospecting for elusive fast-growing, oily microalgae is a soggy, muddy, rewarding job for NREL researcher Lee Elliott. Not only do algae grow in unlikely settings, but their ability to convert the light they receive into biomass has the potential to outperform that of land plants. Trees, grasses and shrubs typically are not very efficient in capturing and converting the sun's energy into biomass, but some algae are believed to be capable of much higher efficiencies, with some scientists thinking ideal strains may be able to approach the maximum theoretical photosynthetic efficiency under the right conditions.

  2. NREL: Photovoltaics Research - Facilities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy153014TheFacilities NREL's

  3. NREL Wind Organization Chart

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL4

  4. NREL: Biomass Research - Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hitsAwardsPublications NREL publishes

  5. NREL: Solar Research - News

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resource assessment andWorking with UsNews

  6. NREL: Transportation Research - News

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData andFleet Test and Evaluation Photo ofHydraulic HybridNews NREL

  7. NREL: Transportation Research - Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData andFleet Test and Evaluation Photo ofHydraulicPublications NREL

  8. NREL: Wind Research - NREL Plays Founding, Developmental Role...

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

    NREL Plays Founding, Developmental Role in Major Wind Journal A screenshot of the Wind Energy publication for January 2013 with the picture of a spinning wind turbine on the front....

  9. NREL: News - NREL Scientists Find Key Function for Ferredoxins...

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

    614 NREL Scientists Find Key Function for Ferredoxins in Algae Hydrogen Production Two of six iron-rich proteins shown to have role in algae metabolism; discovery could lead to...

  10. NREL: News - NREL Finds a New Cellulose Digestion Mechanism by...

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

    114 NREL Finds a New Cellulose Digestion Mechanism by a Fast-eating Enzyme CelA digests cellulose faster than enzymes from commercial preparations January 2, 2014 Researchers at...

  11. NREL Software Aids Offshore Wind Turbine Designs (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-10-01T23:59:59.000Z

    NREL researchers are supporting offshore wind power development with computer models that allow detailed analyses of both fixed and floating offshore wind turbines. While existing computer-aided engineering (CAE) models can simulate the conditions and stresses that a land-based wind turbine experiences over its lifetime, offshore turbines require the additional considerations of variations in water depth, soil type, and wind and wave severity, which also necessitate the use of a variety of support-structure types. NREL's core wind CAE tool, FAST, models the additional effects of incident waves, sea currents, and the foundation dynamics of the support structures.

  12. NREL Center for Photovoltaics

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    Solar cells, also called photovoltaics (PV) by solar cell scientists, convert sunlight directly into electricity. Solar cells are often used to power calculators and watches. The performance of a solar cell is measured in terms of its efficiency at turning sunlight into electricity. Only sunlight of certain energies will work efficiently to create electricity, and much of it is reflected or absorbed by the material that make up the cell. Because of this, a typical commercial solar cell has an efficiency of 15%?about one-sixth of the sunlight striking the cell generates electricity. Low efficiencies mean that larger arrays are needed, and that means higher cost. Improving solar cell efficiencies while holding down the cost per cell is an important goal of the PV industry, researchers at the National Renewable Energy Laboratory (NREL) and other U.S. Department of Energy (DOE) laboratories, and they have made significant progress. The first solar cells, built in the 1950s, had efficiencies of less than 4%. For a text version of this video visit http://www.nrel.gov/learning/re_photovoltaics_video_text.html

  13. International Conference on Microwave and RF Heating MODELING OF A CYLINDRICAL APPLICATOR WITH THE

    E-Print Network [OSTI]

    Yakovlev, Vadim

    by comprehensive modeling specifying appropriate parameters of the excitation system and monitoring the electric10th International Conference on Microwave and RF Heating and experimentally. It appears that because of the uniform electric field distribution along the axis of the cylinder

  14. IMA Journal of Applied Mathematics (2002) 67, 419439 Modelling thermal front dynamics in microwave heating

    E-Print Network [OSTI]

    Xin, Jack

    an electric field is applied to materials with high resistivity, the dipole moments of the molecules alignIMA Journal of Applied Mathematics (2002) 67, 419­439 Modelling thermal front dynamics in microwave July 2000; revised on 6 December 2001] The formation and propagation of thermal fronts in a cylindrical

  15. Telling the NREL Story (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-07-01T23:59:59.000Z

    This fact sheet explains NREL's efforts to inform staff on consistent messaging and resources for communicating to laboratory stakeholders.

  16. Biodiesel R&D at NREL

    SciTech Connect (OSTI)

    McCormick, R.; Alleman, T.; Barnitt, R.; Clark, W.; Hayes, B.; Ireland, J.; Proc, K.; Ratcliff, M.; Thornton, M.; Whitacre, S.; Williams, A.

    2006-02-06T23:59:59.000Z

    Discusses NREL's biodiesel research priorities and some current research results, including those concerning biodiesel quality and stability.

  17. Webinar: NREL's Fuel Cell Contaminant Database

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled "NREL's Fuel Cell Contaminant Database," originally presented on May 27, 2014.

  18. Intro to NREL's Thermochemical Pilot Plant

    ScienceCinema (OSTI)

    Magrini, Kim

    2014-06-10T23:59:59.000Z

    NREL's Thermochemical Pilot Plant converts biomass into higher hydrocarbon fuels and chemicals.NREL is researching biomass pyrolysis. The lab is examining how to upgrade bio-oils via stabilization. Along with this, NREL is developing the engineering system requirements for producing these fuels and chemicals at larger scales.

  19. Intro to NREL's Thermochemical Pilot Plant

    SciTech Connect (OSTI)

    Magrini, Kim

    2013-09-27T23:59:59.000Z

    NREL's Thermochemical Pilot Plant converts biomass into higher hydrocarbon fuels and chemicals.NREL is researching biomass pyrolysis. The lab is examining how to upgrade bio-oils via stabilization. Along with this, NREL is developing the engineering system requirements for producing these fuels and chemicals at larger scales.

  20. NREL Research Support Facility (RSF) Documentary

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    he ideas and innovations that define NREL are now shaping the next generation of commercial office buildings. DOE's Research Support Facility at NREL, will set a new benchmark for affordable, sustainable commercial design and construction. The unique form of the RSF is driven by energy-saving strategies, many researched and advanced at NREL.

  1. NREL Photovoltaic Program FY 1993

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    This report reviews the in-house and subcontracted research and development (R&D) activities under the National Renewable Energy Laboratory (NREL) Photovoltaic (PV) Program from October 1, 1992, through September 30, 1993 (fiscal year [FY] 1993). The NREL PV Program is part of the U.S. Department of Energy`s (DOE`s) National Photovoltaics Program, as described in the DOE Photovoltaics Program Plan, FY 1991 - FY 1995. The FY 1993 budget authority (BA) for carrying out the NREL PV Program was $40.1 million in operating funds and $0.9 million in capital equipment funds. An additional $4.8 million in capital equipment funds were made available for the new Solar Energy Research Facility (SERF) that will house the in-house PV laboratories beginning in FY 1994. Subcontract activities represent a major part of the NREL PV Program, with more than $23.7 million (nearly 59%) of the FY 1993 operating funds going to 70 subcontractors. In FY 1993, DOE assigned certain other PV subcontracting efforts to the DOE Golden Field Office (DOE/GO), and assigned responsibility for their technical support to the NREL PV Program. An example is the PV:BONUS (Building Opportunities in the U.S. for Photovoltaics) Project. These DOE/GO efforts are also reported in this document.

  2. Impact of Hillslope-Scale Organization of Topography, Soil Moisture, Soil Temperature, and Vegetation on Modeling Surface Microwave Radiation Emission

    E-Print Network [OSTI]

    Flores, Alejandro N.

    Microwave radiometry will emerge as an important tool for global remote sensing of near-surface soil moisture in the coming decade. In this modeling study, we find that hillslope-scale topography (tens of meters) influences ...

  3. NREL Technology Partnership Agreement Process

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL MoreNREL

  4. NREL Materials Recycling Procedure Purpose To promote environmental sustainability and stewardship, NREL provides the

    E-Print Network [OSTI]

    NREL Materials Recycling Procedure Purpose To promote environmental sustainability and stewardship, NREL provides the infrastructure for workers to incorporate materials recycling in daily operations. This procedure identifies appropriate materials, collection locations, and rules and processes for recycling

  5. NREL: A Year in Clean Energy Innovations; A Review of NREL's 2011 Feature Stories

    SciTech Connect (OSTI)

    Not Available

    2012-04-01T23:59:59.000Z

    This document is a compilation of articles featuring NREL research and development, deployment, commercialization, and outreach activities in 2011. The feature stories can be found online at http:www.nrel.gov/features/.

  6. NRELs PV Tools on the Web: Open PV Project

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

    NREL's PV Tools on the Web: The OpenPV Project NREL TAP Webinar Ted Quinby March 24, 2010 National Renewable Energy Laboratory Innovation for Our Energy Future Overview National...

  7. Soil moisture modeling and scaling using passive microwave remote sensing

    E-Print Network [OSTI]

    Das, Narendra N.

    2007-04-25T23:59:59.000Z

    Soil moisture in the shallow subsurface is a primary hydrologic state governing land-atmosphere interaction at various scales. The primary objectives of this study are to model soil moisture in the root zone in a distributed manner and determine...

  8. NREL Enables Efficient Data Exchange for Home Performance Companies (Fact Sheet), NREL Highlights in Research & Development

    SciTech Connect (OSTI)

    Merket, N.

    2014-01-01T23:59:59.000Z

    NREL supports standard data transfer protocol to streamline communication of home performance tracking systems and upgrade analysis software.

  9. Geothermal Energy Association Honors NREL's Dr. Bharathan for...

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

    Association Honors NREL's Dr. Bharathan for Work in Condenser Technology Geothermal Energy Association Honors NREL's Dr. Bharathan for Work in Condenser Technology July 16, 2012 -...

  10. Energy Department's New Laboratory at NREL Earns LEED Platinum...

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

    Department's New Laboratory at NREL Earns LEED Platinum Energy Department's New Laboratory at NREL Earns LEED Platinum November 1, 2013 - 2:52pm Addthis The Energy Systems...

  11. NREL: Photovoltaics Research - Sarah Kurtz, Ph.D.

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

    NREL Publications View NREL publications for this staff member. Printable Version Photovoltaics Research Home Silicon Polycrystalline Thin Films Multijunctions New Materials,...

  12. Researchers at the National Renewable Energy Laboratory (NREL) develop a high-fidelity large-eddy simulation model

    E-Print Network [OSTI]

    to simulate events such as frontal passages through a wind plant and their effect on turbine power production-eddy simulation model designed to predict the performance of large wind plants with a higher degree of accuracy larger, but the power production of these large plants has, in some cases, been lower than initially

  13. Physics-Based GOES Satellite Product for Use in NREL's National Solar Radiation Database: Preprint

    SciTech Connect (OSTI)

    Sengupta, M.; Habte, A.; Gotseff, P.; Weekley, A.; Lopez, A.; Molling, C.; Heidinger, A.

    2014-07-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL), University of Wisconsin, and National Oceanic Atmospheric Administration are collaborating to investigate the integration of the Satellite Algorithm for Shortwave Radiation Budget (SASRAB) products into future versions of NREL's 4-km by 4-km gridded National Solar Radiation Database (NSRDB). This paper describes a method to select an improved clear-sky model that could replace the current SASRAB global horizontal irradiance and direct normal irradiances reported during clear-sky conditions.

  14. NREL Spectrum of Clean Energy Innovation (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-09-01T23:59:59.000Z

    This brochure describes the NREL Spectrum of Clean Energy Innovation, which includes analysis and decision support, fundamental science, market relevant research, systems integration, testing and validation, commercialization and deployment. Through deep technical expertise and an unmatched breadth of capabilities, the National Renewable Energy Laboratory (NREL) leads an integrated approach across the spectrum of renewable energy innovation. From scientific discovery to accelerating market deployment, NREL works in partnership with private industry to drive the transformation of our nation's energy systems. NREL integrates the entire spectrum of innovation, including fundamental science, market relevant research, systems integration, testing and validation, commercialization, and deployment. Our world-class analysis and decision support informs every point on the spectrum. The innovation process at NREL is inter-dependent and iterative. Many scientific breakthroughs begin in our own laboratories, but new ideas and technologies may come to NREL at any point along the innovation spectrum to be validated and refined for commercial use.

  15. NREL: Biomass Research - Biochemical Conversion Projects

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

    NREL's projects in biochemical conversion involve three basic steps to convert biomass feedstocks to fuels: Converting biomass to sugar or other fermentation feedstock...

  16. NREL: Biomass Research - Thermochemical Conversion Projects

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

    fuel synthesis reactor. NREL investigates thermochemical processes for converting biomass and its residues to fuels and intermediates using gasification and pyrolysis...

  17. NREL: Biomass Research - Courtney E. Payne

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

    and compositional analysis constituents. Courtney also mentors and manages the biomass analysis group's interns. Before joining NREL, Courtney worked as a synthetic organic...

  18. NREL: Biomass Research - Justin B. Sluiter

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

    Justin B. Sluiter Justin Sluiter is a biomass analyst at the National Renewable Energy Laboratory's National Bioenergy Center. Justin started at NREL in 1996 working on a lignin...

  19. NREL: Biomass Research - News Release Archives

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

    effort to economically produce drop-in gasoline, diesel and jet fuel from non-food biomass feedstocks, the federal laboratory announced today. November 26, 2012 NREL...

  20. Biomass Catalyst Characterization Laboratory (Fact Sheet), NREL...

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

    Characterization Laboratory Enabling fundamental understanding of thermochemical biomass conversion catalysis and performance NREL is a national laboratory of the U.S....

  1. NREL: Biomass Research - News Release Archives

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

    Research Facility (IBRF). June 2, 2011 Science & Industry Peers Turn to NREL for Biomass Solutions The biomass industry looks to the U.S. Department of Energy's National...

  2. NREL: Energy Systems Integration Home Page

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

    Systems Integration News to learn what's happening in ESI at NREL and beyond. Photo of solar panels with the words 'Redefining What's Possible for Renewable Energy: Grid...

  3. NREL: Workforce Development and Education Programs - Special...

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

    Special Notice: 2016 U.S. Department of Energy Collegiate Wind Competition September 16, 2014 The U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL)...

  4. NREL: Vehicles and Fuels Research - Facilities

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

    A researcher places a battery pack in the Isothermal Battery Calorimeter. Energy Storage Laboratories Research at NREL's Energy Storage Laboratory and Battery Thermal and...

  5. NREL: Director's Page - Interviews and Articles

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

    OnPoint Interview - January 12, 2010 As the Obama administration focuses its efforts on green jobs creation and renewable energy development, NREL is playing an increasingly...

  6. NREL: Vehicles and Fuels Research - Fuels Performance

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

    about related NREL biomass research projects that focus on converting renewable biomass feedstocks into transportation fuels, chemicals, and products. For more information, see...

  7. Spectral Solar Radiation Data Base at NREL

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

    *In September 1991 the Solar Energy Research Institute became the National Renewable Energy Laboratory. [Description taken from http://rredc.nrel.gov/solar/old_data/spectral/

  8. NREL: Energy Executive Leadership Academy - Leadership Academy...

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

    30, 2015, applicants should complete the online application below and email their resume and two letters of recommendation to EnergyExecs@nrel.gov. Contact Information *First...

  9. Advanced Petroleum Based Fuels Research at NREL

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

    Petroleum Based Fuels Research at NREL Brad Zigler (PI) with Robb Barnitt, Greg Bogin, Wendy Clark, John Ireland, Doug Lawson, Jon Luecke, Dan Pedersen, Matt Ratcliff, and Matt...

  10. NREL's Controllable Grid Interface for Testing Renewable Energy Technologies (Presentation)

    SciTech Connect (OSTI)

    Gevorgian, V.

    2014-09-01T23:59:59.000Z

    This presentation is an overview of NREL's Controllable Grid Interface capabilities for testing renewable energy technologies.

  11. 3D modelling of forest canopy structure for remote sensing simulations in the optical and microwave domains

    E-Print Network [OSTI]

    Jones, Peter JS

    3D modelling of forest canopy structure for remote sensing simulations in the optical and microwave July 2005; received in revised form 4 October 2005; accepted 8 October 2005 Abstract A detailed 3D using detailed 3D models of tree structure including the location and orientation of individual needles

  12. NREL: Continuum Magazine - NREL and the Cleantech Industry

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of WomenEvents BelowAbout ShareCloser Look: NREL and

  13. NREL: News - NREL Expert Honored for Energy Systems Innovations

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff Materials and Chemical30214 NREL Expert

  14. NREL: News - NREL Scientist Brian Gregg Named AAAS Fellow

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff Materials andBookmark and Share215 NREL

  15. NREL: News - NREL, Sandia Team to Improve Hydrogen Fueling Infrastructure

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff Materials andBookmarkCost of714 NREL,

  16. NREL: News Feature - NREL Supercomputer Tackles Grid Challenges

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff MaterialsPrintableHPDrivingNREL

  17. NREL: News Feature - Solar System Tops Off Efficient NREL Building

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch StaffSustainability NREL'sRevivingSolar

  18. NREL: Sustainable NREL - Awards for the Research Support Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resource assessmentFueltheAbout

  19. NREL: Sustainable NREL - Media Contacts for the Research Support Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy SystemsMedia Contacts for the

  20. NREL: Sustainable NREL - Photographs of the Research Support Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy SystemsMedia

  1. NREL: Sustainable NREL - Research Support Facility Photos (Text Version)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergy SystemsMediaRSF

  2. NREL: Sustainable NREL - Videos of the Research Support Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergyTransportation Photo of

  3. NREL: Sustainable NREL - Waste Reduction and Pollution Prevention

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergyTransportation Photo ofWaste

  4. NREL: Transmission Grid Integration - NREL Study Indicates Economic

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOtherForecasting NREL researchersPotential for

  5. NREL: Wind Research - NREL Supports Innovative Offshore Wind Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData andFleet Test andField Verification ProjectProjects NREL

  6. NREL Research Support Facilities (RSF)

    High Performance Buildings Database

    Golden, CO NREL's Research Support Facilities building (RSF) will be a total of 218,000 sq. feet. It will have two parallel secured employee wings, one of which will be 4 stories and the other 3 stories. A connector building housing most of the public spaces will run perpendicular through both wings. The RSF will provide workspace for 742 employees. The RSF is designed to be a zero energy building through the use of innovative energy efficiency, daylighting, and renewable energy strategies, including photovoltaic solar electric systems to generate electricity.

  7. NREL: International Activities Home Page

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy Sponsors and Partners NREL

  8. NREL: Biomass Research - Research Staff

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hitsAwardsPublications NREL

  9. NREL: Community - News Release Archives

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of WomenEvents Below are upcomingWorking7/24/00 -NREL

  10. NREL: Electricity Integration Research - Facilities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of WomenEventsTools Update - AprilFacilities NREL's

  11. NREL: News - Release Archives 1995

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff Materials andBookmarkCost of7145155 NREL

  12. NREL: Transmission Grid Integration - Forecasting

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOtherForecasting NREL researchers use solar and

  13. NREL: Transmission Grid Integration - News

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOtherForecasting NREL researchersPotential forNews

  14. NREL: Transmission Grid Integration - Projects

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOtherForecasting NREL researchersPotentialProjects

  15. NREL: Transmission Grid Integration - Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOtherForecasting NREL

  16. NREL: Wind Research - @NWTC Newsletter

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData andFleet Test and EvaluationManagementWorking with Us NREL@NWTC

  17. NREL Quickens its Tech Transfer Efforts

    SciTech Connect (OSTI)

    Lammers, H.

    2012-02-01T23:59:59.000Z

    Innovations and 'aha' movements in renewable energy and energy efficiency, while exciting in the lab, only truly live up to their promise once they find a place in homes or business. Late last year President Obama issued a directive to all federal agencies to increase their efforts to transfer technologies to the private sector in order to achieve greater societal and economic impacts of federal research investments. The president's call to action includes efforts to establish technology transfer goals and to measure progress, to engage in efforts to increase the speed of technology transfer and to enhance local and regional innovation partnerships. But, even before the White House began its initiative to restructure the commercialization process, the National Renewable Energy Laboratory had a major effort underway designed to increase the speed and impact of technology transfer activities and had already made sure its innovations had a streamlined path to the private sector. For the last three years, NREL has been actively setting commercialization goals and tracking progress against those goals. For example, NREL sought to triple the number of innovations over a five-year period that began in 2009. Through best practices associated with inventor engagement, education and collaboration, NREL quadrupled the number of innovations in just three years. Similar progress has been made in patenting, licensing transactions, income generation and rewards to inventors. 'NREL is known nationally for our cutting-edge research and companies know to call us when they are ready to collaborate,' William Farris, vice president for commercialization and technology transfer, said. 'Once a team is ready to dive in, they don't want be mired in paperwork. We've worked to make our process for licensing NREL technology faster; it now takes less than 60 days for us to come to an agreement and start work with a company interested in our research.' While NREL maintains a robust patent portfolio, often companies are looking to do more than just license a technology. These relationships are invaluable in successfully moving technologies from NREL to the marketplace. 'We may generate new and potentially valuable innovations, but our commercialization partners do the heavy work of building a successful business around our technology,' Farris said. Tools such as CRADAs (Cooperative Research and Development Agreements) allow NREL to continue working with companies to refine and develop technologies. And, working with businesses is an area where NREL excels. NREL is responsible for one quarter of the CRADAs in the DOE system. 'When you look at the results of our CRADA program, you can demonstrate that we are actively engaged with companies in collaborating on research and moving technologies to market,' Farris said. NREL is first among DOE labs with 186 active CRADAs. And last year, NREL also was first with the number of new CRADAs signed. 'Part of the success in our working with industry goes back to NREL's mission to grow and support new industries,' Farris added. 'NREL has basic research capabilities, but we are never going to be the ultimate producer of a commercial product. That is the role of the private sector.' Farris also credits the advocacy and support that the Office of Energy Efficiency and Renewable Energy at DOE provides for these technology transfer activities. 'EERE's support is critical to our success,' Farris said. To assist the private sector in moving a technology from the lab to the manufacturing line, NREL has a number of programs in place to give that first, or even final, nudge toward commercialization. For instance, the Commercialization Assistance Program helps startups overcome technical barriers by granting free access to 40 hours of work at the lab. Through the Innovation and Entrepreneurship Center, NREL also helps clean energy businesses develop strong links with the financial community, as well as other key stakeholders in the commercialization process. In March, NREL formally opened the Colorado Center for Renewable Ene

  18. NREL photovoltaic program FY 1997 annual report

    SciTech Connect (OSTI)

    McConnell, R.D.; Hansen, A.; Smoller, S.

    1998-06-01T23:59:59.000Z

    This report summarizes the in-house and subcontracted research and development (R and D) activities under the NREL PV Program from October 1, 1996, through September 30, 1997 (FY 1997). The NREL PV Program is part of the US Department of Energy`s (DOE`s) National Photovoltaics Program, as described in the DOE National Photovoltaics Program Plan for 1996--2000. The FY 1997 budget authority for carrying out the NREL PV Program was $39.3 million in operating funds and $0.4 million in capital equipment funds. Subcontract activities represent a major part of the NREL PV Program, with $21.8 million (55% of PV funds) going to some 84 subcontractors. Cost sharing by industry added almost $8.8 million to the subcontract R and D activities with industry.

  19. NREL: Biomass Research - News Release Archives

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

    than 15,000 votes. September 28, 2010 NREL Releases BioEnergy Atlas - a Comprehensive Biomass Mapping Application BioEnergy Atlas, a Web portal that provides access to two...

  20. NREL: Biomass Research - News Archives - 2008

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

    today. The 3.3 million project is the Laboratory's latest step toward operating as a net-zero energy facility. November 20, 2008 NREL, Brazilian Energy Company to Collaborate...

  1. NREL Test-to-Failure Protocol (Presentation)

    SciTech Connect (OSTI)

    Hacke, P.

    2012-03-01T23:59:59.000Z

    The presentation describes the test-to-failure protocol that was developed and piloted at NREL, stressing PV modules with multiple applications of damp heat (with bias) and thermal cycling until they fail.

  2. I!OU!, RECIPIENT:NREL

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

    and temperature sensors would be collected up to 24 months and transmitted to NREL via cell phone transmission. Access to the met tower would be provided by existing roads. The...

  3. Battery Thermal Modeling and Testing (Presentation)

    SciTech Connect (OSTI)

    Smith, K.

    2011-05-01T23:59:59.000Z

    This presentation summarizes NREL battery thermal modeling and testing work for the DOE Annual Merit Review, May 9, 2011.

  4. NREL: News Feature - Postdoctoral Fellows Bring Fresh Insights

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

    on my radar," Knott said. His UC advisor was familiar with research at NREL's National Bioenergy Center, so Knott applied and was selected as the first NREL Director's Fellow....

  5. Federal Wind Energy Assistance through NREL (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-09-01T23:59:59.000Z

    NREL assists with wind resource assessment and development activities initiated by federal agencies to facilitate distributed renewable energy projects at federal agency sites. This brief outlines the process for requesting NREL assistance with federal wind energy projects.

  6. NREL Advances Spillover Materials for Hydrogen Storage (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-12-01T23:59:59.000Z

    This fact sheet describes NREL's accomplishments in advancing spillover materials for hydrogen storage and improving the reproducible synthesis, long-term durability, and material costs of hydrogen storage materials. Work was performed by NREL's Chemical and Materials Science Center.

  7. NREL Battery Thermal and Life Test Facility (Presentation)

    SciTech Connect (OSTI)

    Keyser, M.

    2011-05-01T23:59:59.000Z

    This presentation describes NREL's Battery Thermal Test Facility and identifies test requirements and equipment and planned upgrades to the facility.

  8. NREL Evaluates Performance of Heat Pump Water Heaters (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-02-01T23:59:59.000Z

    NREL evaluates energy savings potential of heat pump water heaters in homes throughout all U.S. climate zones.

  9. NREL Reduces Climate Control Loads in Electric Vehicles (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-08-01T23:59:59.000Z

    NREL demonstrates that zonal climate control can reduce air conditioning power and improve range while maintaining driver thermal sensation.

  10. Self-consistent modeling of DC and microwave nitrogen discharges and their afterglows

    SciTech Connect (OSTI)

    Guerra, Vasco [Centro de Fisica dos Plasmas, Instituto Superior Tecnico, 1049-001 Lisbon (Portugal)

    2004-12-01T23:59:59.000Z

    This report presents an investigation on the modeling of stationary DC and microwave nitrogen discharges and their afterglows, operating at pressures around one Torr and ionization degrees between 10-7-10-4. The model is based on the self-consistent solutions to the electron Boltzmann equation coupled to the rate balance equations for the most important neutral and charged species, the wave electrodynamics characteristics and the gas thermal balance equation. The results are obtained as a function of the usual discharge operating parameters, namely gas pressure, discharge current or electron density, and tube radius. It is shown that the vibrationally excited molecules play a central role in the whole problem, ensuring a strong link between different kinetics and directly contributing to the mechanisms of dissociation and gas heating. Furthermore, vibrationally excited molecules in high vibration levels are in the origin of the peaks observed in the flowing afterglow for the concentrations of several species, such as N{sub 2}(A {sup 3}{sigma}{sub g}{sup +}), N2(B 3{pi}g), N{sub 2}{sup +}(B {sup 2}{sigma}{sub u}{sup +}) and electrons, which occur downstream from the discharge after a dark zone as a consequence of the V-V up-pumping mechanism.

  11. NREL showcase solar systems and energy efficient design

    SciTech Connect (OSTI)

    NONE

    1995-12-31T23:59:59.000Z

    THe Thermal Test Facility at NREL, which should be completed in the summer of 1996, will incorporate natural lighting from clerestories and may other solar and energy-efficiency features; roof-mounted solar collectors, which will be monitored as part of NREL`s work on active solar systems, will help to heat water and interior spaces in the building.

  12. Sustainable NREL, Biennial Report, FY 2010-2011

    SciTech Connect (OSTI)

    Slovensky, M.; Daw, J.

    2012-09-01T23:59:59.000Z

    This document reports on NREL's 'Campus of the Future,' which leverages partnerships and showcases sustainable energy on and near the NREL site. It is unique in that the report is based on GRI key performance indicators, that support NREL's sustainability goals.

  13. Energy Innovations: Science & Technology at NREL, Spring 2009 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2009-04-01T23:59:59.000Z

    This new Energy Innovations newsletter will increase the awareness of successes, progress, and activities at NREL. Audiences include VIP visitors to NREL, current and potential partners in our work, and key decision makers who want to know why NREL's R&D is worth funding.

  14. Technical Report NREL/TP-550-46274

    E-Print Network [OSTI]

    Technical Report NREL/TP-550-46274 July 2009 Capacity Requirements to Support Inter-Balancing Area Boulevard, Golden, Colorado 80401-3393 303-275-3000 · www.nrel.gov NREL is a national laboratory of the U Requirements to Support Inter-Balancing Area Wind Delivery Brendan Kirby and Michael Milligan Prepared under

  15. NREL Energy Storage Projects: FY2013 Annual Report

    SciTech Connect (OSTI)

    Pesaran, A.; Ban, C.; Brooker, A.; Gonder, J.; Ireland, J.; Keyser, M.; Kim, G. H.; Long, D.; Neubauer, J.; Santhanagopalan, S.; Smith, K.; Tenent, R.; Wood, E.; Han, T.; Hartridge, S.; Shaffer, C. E.

    2014-07-01T23:59:59.000Z

    In FY13, DOE funded NREL to make technical contributions to various R&D activities. This report summarizes NREL's R&D projects in FY13 in support of the USABC; Battery Testing, Analysis, and Design; ABR; and BATT program elements. The FY13 projects under NREL's Energy Storage R&D program are discussed in depth in this report.

  16. Harmonic polynomials for expanding the fluctuations of the Cosmic Microwave Background: The Poincare and the 3-sphere model

    E-Print Network [OSTI]

    Peter Kramer

    2007-01-01T23:59:59.000Z

    Fluctuations of the Cosmic Microwave Background CMB are observed by the WMAP. When expanded into the harmonic eigenmodes of the space part of a cosmological model, they provide insight into the large-scale topology of space. All harmonic polynomials on the multiply connected dodecahedral Poincare space are constructed. Strong and specific selection rules are given by comparing the polynomials to those on the 3-sphere, its simply connected cover.

  17. Experience with CPV Module Failures at NREL (Presentation)

    SciTech Connect (OSTI)

    Muller, M.

    2012-03-01T23:59:59.000Z

    The failures and performance issues associated with three years of on-sun testing of CPV modules are discussed. Pictures of various failure mechanisms and performance issues are presented. A wide array of CPV module failures and performance issues have been experienced at NREL. Many of the modules are prototypes and have not been through qualification testing. It is assumed that the qualification test would have captured many of the problems. Internal lens soiling due to condensation is not currently captured by the qualification test. Lens temperature dependence can be built into modeling if CPV is to operate in cold locations.

  18. DOE and NREL Technical Assistance | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models | Department ofDepartment ofCaldwell andPaloDOE and NREL Technical

  19. Self-consistent fluid modeling and simulation on a pulsed microwave atmospheric-pressure argon plasma jet

    SciTech Connect (OSTI)

    Chen, Zhaoquan, E-mail: zqchen@aust.edu.cn [Faculty of Physics, St. Petersburg State University, St. Petersburg 198504 (Russian Federation); College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001 (China); Yin, Zhixiang, E-mail: zxyin66@163.com; Chen, Minggong; Hong, Lingli; Hu, Yelin; Huang, Yourui [College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001 (China); Xia, Guangqing; Liu, Minghai [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Kudryavtsev, A. A. [Faculty of Physics, St. Petersburg State University, St. Petersburg 198504 (Russian Federation)

    2014-10-21T23:59:59.000Z

    In present study, a pulsed lower-power microwave-driven atmospheric-pressure argon plasma jet has been introduced with the type of coaxial transmission line resonator. The plasma jet plume is with room air temperature, even can be directly touched by human body without any hot harm. In order to study ionization process of the proposed plasma jet, a self-consistent hybrid fluid model is constructed in which Maxwell's equations are solved numerically by finite-difference time-domain method and a fluid model is used to study the characteristics of argon plasma evolution. With a Guass type input power function, the spatio-temporal distributions of the electron density, the electron temperature, the electric field, and the absorbed power density have been simulated, respectively. The simulation results suggest that the peak values of the electron temperature and the electric field are synchronous with the input pulsed microwave power but the maximum quantities of the electron density and the absorbed power density are lagged to the microwave power excitation. In addition, the pulsed plasma jet excited by the local enhanced electric field of surface plasmon polaritons should be the discharge mechanism of the proposed plasma jet.

  20. Simple Method Quantifies Recombination Pathways in Solar Cells (Fact Sheet), NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminarsSilicon sponge improvesSimTable models andNREL's

  1. NREL: News - NREL Finds Up to 6-cent per Kilowatt-Hour Extra...

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

    714 NREL Finds Up to 6-cent per Kilowatt-Hour Extra Value with Concentrated Solar Power The greater the penetration of renewables in California, the greater the value of CSP with...

  2. Microwave detector

    DOE Patents [OSTI]

    Meldner, Heiner W. (Moss Beach, CA); Cusson, Ronald Y. (Chapel Hill, NC); Johnson, Ray M. (San Ramon, CA)

    1986-01-01T23:59:59.000Z

    A microwave detector (10) is provided for measuring the envelope shape of a microwave pulse comprised of high-frequency oscillations. A biased ferrite (26, 28) produces a magnetization field flux that links a B-dot loop (16, 20). The magnetic field of the microwave pulse participates in the formation of the magnetization field flux. High-frequency insensitive means (18, 22) are provided for measuring electric voltage or current induced in the B-dot loop. The recorded output of the detector is proportional to the time derivative of the square of the envelope shape of the microwave pulse.

  3. Microwave detector

    DOE Patents [OSTI]

    Meldner, H.W.; Cusson, R.Y.; Johnson, R.M.

    1985-02-08T23:59:59.000Z

    A microwave detector is provided for measuring the envelope shape of a microwave pulse comprised of high-frequency oscillations. A biased ferrite produces a magnetization field flux that links a B-dot loop. The magnetic field of the microwave pulse participates in the formation of the magnetization field flux. High-frequency insensitive means are provided for measuring electric voltage or current induced in the B-dot loop. The recorded output of the detector is proportional to the time derivative of the square of the envelope shape of the microwave pulse.

  4. NREL Solar Radiation Resource Assessment Project: Status and outlook. FY 1991 annual progress report

    SciTech Connect (OSTI)

    Renne, D.; Riordan, C.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.

    1992-05-01T23:59:59.000Z

    This report summarizes the activities and accomplishments of NREL`s Solar Radiation Resource Assessment Project during fiscal year 1991. Currently, the primary focus of the SRRAP is to produce a 1961--1990 National Solar Radiation Data Base, providing hourly values of global horizontal, diffuse, and direct normal solar radiation at approximately 250 sites around the United States. Because these solar radiation quantities have been measured intermittently at only about 50 of these sites, models were developed and applied to the majority of the stations to provide estimates of these parameters. Although approximately 93% of the data base consists of modeled data this represents a significant improvement over the SOLMET/ERSATZ 1952--1975 data base. The magnitude and importance of this activity are such that the majority of SRRAP human and financial in many other activities, which are reported here. These include the continued maintenance of a solar radiation monitoring network in the southeast United States at six Historically Black Colleges and Universities (HBCU`s), the transfer of solar radiation resource assessment technology through a variety of activities, participation in international programs, and the maintenance and operation of NREL`s Solar Radiation Research Laboratory. 17 refs.

  5. NREL Solar Radiation Resource Assessment Project: Status and outlook

    SciTech Connect (OSTI)

    Renne, D.; Riordan, C.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.

    1992-05-01T23:59:59.000Z

    This report summarizes the activities and accomplishments of NREL's Solar Radiation Resource Assessment Project during fiscal year 1991. Currently, the primary focus of the SRRAP is to produce a 1961--1990 National Solar Radiation Data Base, providing hourly values of global horizontal, diffuse, and direct normal solar radiation at approximately 250 sites around the United States. Because these solar radiation quantities have been measured intermittently at only about 50 of these sites, models were developed and applied to the majority of the stations to provide estimates of these parameters. Although approximately 93% of the data base consists of modeled data this represents a significant improvement over the SOLMET/ERSATZ 1952--1975 data base. The magnitude and importance of this activity are such that the majority of SRRAP human and financial in many other activities, which are reported here. These include the continued maintenance of a solar radiation monitoring network in the southeast United States at six Historically Black Colleges and Universities (HBCU's), the transfer of solar radiation resource assessment technology through a variety of activities, participation in international programs, and the maintenance and operation of NREL's Solar Radiation Research Laboratory. 17 refs.

  6. National Center for Photovoltaics at NREL

    SciTech Connect (OSTI)

    VanSant, Kaitlyn; Wilson, Greg; Berry, Joseph; Al-Jassim, Mowafak; Kurtz, Sarah

    2013-11-07T23:59:59.000Z

    The National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV is a central resource for our nation's capabilities in PV research, development, deployment, and outreach.

  7. NREL Develops New Optical Evaluation Approach for

    E-Print Network [OSTI]

    NREL Develops New Optical Evaluation Approach for Parabolic Trough Collectors New analytical method makes it possible to carry out fast evaluation of trough collectors for design purposes. Parabolic is the collector optical efficiency, which is the ratio of the absorbed solar power by the receiver

  8. NREL's Research Support Facility and its Foundations

    E-Print Network [OSTI]

    's (DOE) NREL campus in Golden, Colo- rado, has a foundation in energy efficiency, grounded in the work Request for Proposals (RFP) for DOE to use in its selection of a design- build team for the $64 million a 219,000-square-foot national prototype, they determined the RFP's core would be an energy

  9. NREL Core Program; Session: Wafer Silicon (Presentation)

    SciTech Connect (OSTI)

    Wang, Q.

    2008-04-01T23:59:59.000Z

    This project supports the Solar America Initiative by working on: (1) wafer Si accounts for 92% world-wide solar cell production; (2) research to fill the industry R and D pipeline for the issues in wafer Si; (3) development of industry collaborative research; (4) improvement of NREL tools and capabilities; and (5) strengthen US wafer Si research.

  10. National Center for Photovoltaics at NREL

    ScienceCinema (OSTI)

    VanSant, Kaitlyn; Wilson, Greg; Berry, Joseph; Al-Jassim, Mowafak; Kurtz, Sarah

    2014-06-10T23:59:59.000Z

    The National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) focuses on technology innovations that drive industry growth in U.S. photovoltaic (PV) manufacturing. The NCPV is a central resource for our nation's capabilities in PV research, development, deployment, and outreach.

  11. An Assessment of Microwave Absorption Models and Retrievals of Cloud Liquid Water Using Clear-Sky Data

    SciTech Connect (OSTI)

    Marchand, Roger T.; Ackerman, Thomas P.; Westwater, Ed R.; Clough, Shepard A.; Cady-Pereira, Karen; Liljegren, James C.

    2003-12-19T23:59:59.000Z

    Passive microwave radiometers have a long history in the remote sensing of atmospheric liquid and water vapor. Retrievals of these quantities are sensitive to variations in pressure and temperature of the liquid and water vapor. Rather than use a statistical or climatological approach to account for the natural variability in atmospheric pressure and temperature, additional information on the atmospheric profile at the time of the radiometer measurements can be directly incorporated into the retrieval process. Such an approach has been referred to in the literature as a “physical-iterative” solution. This paper presents an assessment of the accuracy of the column liquid water path that can be expected using such an iterative technique as a result of uncertainties in the microwave emissions from oxygen and water vapor. It is shown that the retrieval accuracy is influenced by the accuracy of the instrument measurements and the quality of the atmospheric profiles of temperature and pressure, as one would expect. But also critical is the uncertainty in the absorption coefficients used in the underlying microwave radiative transfer model. The uncertainty in the absorption coefficients is particularly problematic in that it may well bias the liquid water retrieval. The differences between 3 absorption models examined in this paper are equivalent to a bias of 15 to 30 g/m2, depending on the total column water vapor. An examination of typical liquid water paths from the Southern Great Plains region of the United States shows that errors of this magnitude have significant implications for shortwave radiation and retrievals of cloud effective particle size.

  12. Modelling microwave cooking; theory and experiment C.J. Budd, Centre for Nonlinear Mechanics, University of Bath, UK,

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    is that they reveal that the fields in a typical microwave cavity (such as a domestic cooker) are very sensitive a microwave cooker and a scenario used for experimental testing is shown in Figure. ??. PICTURE OF THE COOKER

  13. NREL Leads Energy Systems Integration, Continuum Magazine: Issue 4 (Book)

    SciTech Connect (OSTI)

    Not Available

    2013-04-01T23:59:59.000Z

    Continuum Magazine showcases NREL's latest and most impactful clean energy innovations. This issue, 'NREL Leads Energy Systems Integration' explores the discipline of energy systems integration, in particular the role of the laboratory's new, one-of-a-kind Energy System Integration Facility. NREL scientists, engineers, and analysts deeply understand the fundamental science and technologies underpinning major energy producing and consuming systems, as well as the transmission infrastructure and communications and data networks required to integrate energy systems at all scales.

  14. Energy Innovations: Science & Technology at NREL, Fall 2009

    SciTech Connect (OSTI)

    Not Available

    2009-09-01T23:59:59.000Z

    The Energy Innovations newsletter serves as a key outreach tool for NREL to tout the lab's accomplishments, progress, and activities to key stakeholders who can impact the lab's level of funding and potential resources. Audiences include VIP visitors to NREL, current and potential partners in our work, and key decision makers who want to know about NREL's R&D directions and the quality and significance of our results.

  15. Energy Innovations: Science & Technology at NREL, Winter 2011 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-12-01T23:59:59.000Z

    The Energy Innovations newsletter serves as a key outreach tool for NREL to tout the lab's accomplishments, progress, and activities to key stakeholders who can impact the lab's level of funding and potential resources. Audiences include VIP visitors to NREL, current and potential partners in our work, and key decision makers who want to know about NREL's R&D directions and the quality and significance of our results.

  16. Sustainable NREL Biennial Report, FY 2012 - 2013 (Management Report)

    SciTech Connect (OSTI)

    Slovensky, M.

    2014-03-01T23:59:59.000Z

    NREL's Sustainability Program plays a vital role bridging research and operations - integrating energy efficiency, water and material resource conservation and cultural change - adding depth in the fulfillment of NREL's mission. The report, per the GRI reporting format, elaborates on multi-year goals relative to executive orders, achievements, and challenges; and success stories provide specific examples. A section called "The Voice of NREL" gives an inside perspective of how to become more sustainable while at the same time addressing climate change.

  17. Energy Innovations: Science & Technology at NREL, Winter 2010 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-02-01T23:59:59.000Z

    The Energy Innovations newsletter serves as a key outreach tool for NREL to tout the lab's accomplishments, progress, and activities to key stakeholders who can impact the lab's level of funding and potential resources. Audiences include VIP visitors to NREL, current and potential partners in our work, and key decision makers who want to know about NREL's R&D directions and the quality and significance of our results.

  18. 2068 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 5, MAY 2006 Modeling of Realistic Rectangular -Coaxial Lines

    E-Print Network [OSTI]

    Popovic, Zoya

    the microwave spectrum can benefit from such lines. For example, Alessandri et al. [5] demonstrated a high

  19. Russian Scientists Team with NREL on Innovative Weathering System...

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

    Technology invented the UV-only mirrors, designed and built the mirror array in Russia, and delivered the prototype UAWS to NREL. In 2008, Vladimir Kiselev was instrumental...

  20. NREL Wind to Hydrogen Project: Renewable Hydrogen Production...

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

    Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage &...

  1. NREL: Biomass Research - Projects in Biomass Process and Sustainabilit...

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

    Projects in Biomass Process and Sustainability Analyses Researchers at NREL use biomass process and sustainability analyses to understand the economic, technical, and global...

  2. NREL: Biomass Research - Projects in Integrated Biorefinery Processes

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

    monitoring and operation control systems. NREL is focused on integrating all the biomass conversion unit operations. With extensive knowledge of the individual unit...

  3. Effective Community-Wide Policy Technical Assistance: The NREL...

    Open Energy Info (EERE)

    Wide Policy Technical Assistance: The NRELDOE Approach Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Effective Community-Wide Policy Technical Assistance: The NREL...

  4. NREL UL Fuel Dispensing Infrastructure Intermediate Blends Performance Testing (Presentation)

    SciTech Connect (OSTI)

    Moriarty, K.; Clark, W.

    2011-01-01T23:59:59.000Z

    Presentation provides an overview of NREL's project to determine compatibility and safe performance of installed fuel dispensing infrastructure with E15.

  5. National Renewable Energy Laboratory (NREL) 2007 Research Review

    SciTech Connect (OSTI)

    Not Available

    2008-08-01T23:59:59.000Z

    This 24-page document focuses on NREL's technology transfer activities for solar cells, hydrogen production, biofuels, nanotechnology, lithium batteries, grid integration, and building technologies.

  6. NREL: Systems Engineering - 2015 Wind Energy Systems Engineering...

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

    Research Systems Engineering Printable Version 2015 Wind Energy Systems Engineering Workshop The third NREL Wind Energy Systems Engineering Workshop took place on the 14th and 15th...

  7. NREL Success Stories - SkyFuel Partnership Reflects Bright Future

    ScienceCinema (OSTI)

    Jorgensen, Gary; Gee, Randy

    2013-05-29T23:59:59.000Z

    NREL Scientists and SkyFuel share a story about how their partnership has resulted in a revolutionary concentrating solar power technology ReflecTech Mirror Film.

  8. Algal Biofuels Research Laboratory (Fact Sheet), NREL (National...

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

    Algal Biofuels Research Laboratory Enabling fundamental understanding of algal biology and composition of algal biomass to help develop superior bioenergy strains NREL is a...

  9. Energy Storage Laboratory (Fact Sheet), NREL (National Renewable...

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

    Power conversion equipment for energy storage * Ultra- and super-capacitor systems * DC systems, such as commercial microgrids Partner with Us Work with NREL experts and take...

  10. EA-1914: National Renewable Energy Laboratory (NREL) National...

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

    Energy Laboratory (NREL) National Wind Technology Center (NWTC) Site-Wide Environmental Assessment, Golden, Colorado SUMMARY This Site-Wide EA evaluates the environmental impacts...

  11. Controller Field Tests on the NREL CART2 Turbine

    SciTech Connect (OSTI)

    Bossanyi, E.; Wright, A.; Fleming, P.

    2010-12-01T23:59:59.000Z

    This document presents the results of the field tests carried out on the CART2 turbine at NREL to validate individual pitch control and active tower damping.

  12. Energy Systems High Pressure Test Laboratory (Fact Sheet), NREL...

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

    National laboratories Contact Us If you are interested in working with NREL's Energy Systems High Pressure Test Laboratory, please contact: ESIF Manager Carolyn Elam...

  13. Energy Systems Fabrication Laboratory (Fact Sheet), NREL (National...

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

    National laboratories Contact Us If you are interested in working with NREL's Energy Systems Fabrication Laboratory, please contact: ESIF Manager Carolyn Elam...

  14. Overview of NREL`s Photovoltaic Advanced R&D Project

    SciTech Connect (OSTI)

    Surek, T.

    1992-01-01T23:59:59.000Z

    The National Renewable Energy Laboratory`s (NREL`s) Photovoltaic Advanced Research and Development (PV AR & D) Project supports the US Department of Energy`s National Photovoltaics Program in assisting the development and commercialization of photovoltaics (PV) energy technology. The NREL program is implemented through in-house research and subcontracts, with over 50% of the annual budget awarded through competitive solicitations to universities, large and small businesses, and other research centers. These activities include cost-shared, multiyear, government/industry partnerships and technology initiatives. The research has resulted in a better fundamental understanding of materials, devices, and processes, the achievement of record efficiencies in nearly all PV technology areas, the identification of promising new approaches to low-cost photovoltaics, and the introduction of new PV technology products into system experiments and PV markets. This paper presents an overview of NREL`s PV AR & D Project in terms of project organization and budgets, near- and long-term project objectives, research participants, and current and future research directions. Recent progress in the in-house and subcontracted research activities is described. 4 refs.

  15. NREL Develops Diagnostic Test Cases to Improve Building Energy Simulation Programs (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-12-01T23:59:59.000Z

    This technical highlight describes NREL research to develop a set of diagnostic test cases for building energy simulations in order to achieve more accurate energy use and savings predictions. The National Renewable Energy Laboratory (NREL) Residential and Commercial Buildings research groups developed a set of diagnostic test cases for building energy simulations. Eight test cases were developed to test surface conduction heat transfer algorithms of building envelopes in building energy simulation programs. These algorithms are used to predict energy flow through external opaque surfaces such as walls, ceilings, and floors. The test cases consist of analytical and vetted numerical heat transfer solutions that have been available for decades, which increases confidence in test results. NREL researchers adapted these solutions for comparisons with building energy simulation results. Testing the new cases with EnergyPlus identified issues with the conduction finite difference (CondFD) heat transfer algorithm in versions 5 and 6. NREL researchers resolved these issues for EnergyPlus version 7. The new test cases will help users and developers of EnergyPlus and other building energy tools to identify and fix problems associated with solid conduction heat transfer algorithms of building envelopes and their boundary conditions. In the long term, improvements to software algorithms will result in more accurate energy use and savings predictions. NREL researchers plan to document the set of test cases and make them available for future consideration by validation standards such as ASHRAE Standard 140: Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs. EnergyPlus users will also have access to the improved CondFD model in version 7 after its next scheduled release.

  16. NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    -08GO28308 Modeling Climate-Water Impacts on Electricity Sector Capacity Expansion Preprint Stuart M.nrel.gov/publications. MODELING CLIMATE-WATER IMPACTS ON ELECTRICITY SECTOR CAPACITY EXPANSION Stuart M. Cohen, Ph.D. National Renewable Energy Laboratory Golden, CO, USA Kristen Averyt, Ph.D. University of Colorado Boulder Boulder, CO

  17. Microwave generator

    DOE Patents [OSTI]

    Kwan, T.J.T.; Snell, C.M.

    1987-03-31T23:59:59.000Z

    A microwave generator is provided for generating microwaves substantially from virtual cathode oscillation. Electrons are emitted from a cathode and accelerated to an anode which is spaced apart from the cathode. The anode has an annular slit there through effective to form the virtual cathode. The anode is at least one range thickness relative to electrons reflecting from the virtual cathode. A magnet is provided to produce an optimum magnetic field having the field strength effective to form an annular beam from the emitted electrons in substantial alignment with the annular anode slit. The magnetic field, however, does permit the reflected electrons to axially diverge from the annular beam. The reflected electrons are absorbed by the anode in returning to the real cathode, such that substantially no reflexing electrons occur. The resulting microwaves are produced with a single dominant mode and are substantially monochromatic relative to conventional virtual cathode microwave generators. 6 figs.

  18. NREL Electrochromic Window Research Wins Award

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    Winners of the CO-LABS Governor's Award for High-Impact Research in Energy Efficiency, Dr. Satyen Deb at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) discovered that a small electrical charge can change the opacity of tungsten oxide from clear to tinted. He, Dr. Dane Gillaspie, and their fellow scientists at NREL then applied this knowledge to develop and transfer the technologies required to construct an electrochromic window, which can switch between clear and heavily tinted states. Electrochromic windows allow natural light in while adding tint to reduce summer heat and glare, and going clear to allow sunlight through in the winter. Broad adaptation of these windows could reduce US total energy use by four percent and reduce building cooling loads by 20%, much of this during expensive peak hours. Windows based on these discoveries are now being installed worldwide.

  19. Philippines-NREL Cooperation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocusOski Energy LLCPascoagPerformanceMap[1]NREL Cooperation

  20. Iceland-NREL Cooperation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany:Information IDS ClimateIceland-NREL Cooperation Jump to:

  1. Maldives-NREL Cooperation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(MonasterLowell Point,ECOInformation Sharing andMaldives-NREL

  2. Observation of a Dirac point in microwave experiments with a photonic crystal modeling graphene

    E-Print Network [OSTI]

    S. Bittner; B. Dietz; M. Miski-Oglu; P. Oria Iriarte; A. Richter; F. Schaefer

    2010-05-25T23:59:59.000Z

    We present measurements of transmission and reflection spectra of a microwave photonic crystal composed of 874 metallic cylinders arranged in a triangular lattice. The spectra show clear evidence of a Dirac point, a characteristic of a spectrum of relativistic massless fermions. In fact, Dirac points are a peculiar property of the electronic band structure of graphene, whose properties consequently can be described by the relativistic Dirac equation. In the vicinity of the Dirac point, the measured reflection spectra resemble those obtained by conductance measurements in scanning tunneling microscopy of graphene flakes.

  3. NREL Photovoltaic Program FY 1996 Annual Report

    SciTech Connect (OSTI)

    Not Available

    1997-08-01T23:59:59.000Z

    This report summarizes the in-house and subcontract research and development (R&D) activities under the National Renewable Energy Laboratory (NREL) Photovoltaics (PV) Program from October 1, 1995 through September 30, 1996 (fiscal year [FY] 1996). The NREL PV Program is part of the U.S. Department of Energy's (DOE) National Photovoltaics Program, as described in the DOE Photovoltaics Program Plan, FY 1991 - FY 1995. The mission of the DOE National Photovoltaics Program is to: "Work in partnership with U.S. industry to develop and deploy photovoltaic technology for generating economically competitive electric power, making photovoltaics an important contributor to the nation's and the world's energy use and environmental improvement. The two primary goals of the national program are to (1) maintain the U.S. PV industry's world leadership in research and technology development and (2) help the U.S. industry remain a major, profitable force in the world market. The NREL PV Program provides leadership and support to the national program toward achieving its mission and goals.

  4. NREL Spectrum of Clean Energy Innovation: Issue 3 (Book)

    SciTech Connect (OSTI)

    Not Available

    2012-11-01T23:59:59.000Z

    This quarterly magazine is dedicated to stepping beyond the technical journals to reveal NREL's vital work in a real-world context for our stakeholders. Continuum provides insights into the latest and most impactful clean energy innovations, while spotlighting those talented researchers and unique facilities that make it all happen. This edition focuses on the NREL Spectrum of Clean Energy Innovation.

  5. Wind Energy at NREL's National Wind Technology Center

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    It is a pure, plentiful natural resource. Right now wind is in high demand and it holds the potential to transform the way we power our homes and businesses. NREL is at the forefront of wind energy research and development. NREL's National Wind Technology Center (NWTC) is a world-class facility dedicated to accelerating and deploying wind technology.

  6. Wind Energy at NREL's National Wind Technology Center

    SciTech Connect (OSTI)

    None

    2010-01-01T23:59:59.000Z

    It is a pure, plentiful natural resource. Right now wind is in high demand and it holds the potential to transform the way we power our homes and businesses. NREL is at the forefront of wind energy research and development. NREL's National Wind Technology Center (NWTC) is a world-class facility dedicated to accelerating and deploying wind technology.

  7. Technical Report NREL/TP-7A2-46190

    E-Print Network [OSTI]

    Technical Report NREL/TP-7A2-46190 July 2009 Market Assessment of Biomass Gasification Technical Report NREL/TP-7A2-46190 July 2009 Market Assessment of Biomass Gasification and Combustion, including 20% postconsumer waste #12;iv Acknowledgments The authors wish to thank Mark Sinclair, Executive

  8. Anomalous Microwave Emission

    E-Print Network [OSTI]

    A. Kogut

    1999-02-22T23:59:59.000Z

    Improved knowledge of diffuse Galactic emission is important to maximize the scientific return from scheduled CMB anisotropy missions. Cross-correlation of microwave maps with maps of the far-IR dust continuum show a ubiquitous microwave emission component whose spatial distribution is traced by far-IR dust emission. The spectral index of this emission, beta_{radio} = -2.2 (+0.5 -0.7) is suggestive of free-free emission but does not preclude other candidates. Comparison of H-alpha and microwave results show that both data sets have positive correlations with the far-IR dust emission. Microwave data, however, are consistently brighter than can be explained solely from free-free emission traced by H-alpha. This ``anomalous'' microwave emission can be explained as electric dipole radiation from small spinning dust grains. The anomalous component at 53 GHz is 2.5 times as bright as the free-free emission traced by H-alpha, providing an approximate normalization for models with significant spinning dust emission.

  9. Microwave furnace having microwave compatible dilatometer

    DOE Patents [OSTI]

    Kimrey, Jr., Harold D. (Knoxville, TN); Janney, Mark A. (Knoxville, TN); Ferber, Mattison K. (Oak Ridge, TN)

    1992-01-01T23:59:59.000Z

    An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy.

  10. Microwave furnace having microwave compatible dilatometer

    DOE Patents [OSTI]

    Kimrey, H.D. Jr.; Janney, M.A.; Ferber, M.K.

    1992-03-24T23:59:59.000Z

    An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy. 2 figs.

  11. National Renewable Energy Laboratory (NREL) 2006 Research Review

    SciTech Connect (OSTI)

    Not Available

    2007-07-01T23:59:59.000Z

    This 2006 issue of the NREL Research Review again reveals just how vital and diverse our research portfolio has become. Our feature story looks at how our move to embrace the tenants of "translational research" is strengthening our ability to meet the nation's energy goals. By closing the gap between basic science and applied research and development (R&D)--and focusing a bright light on the valuable end uses of our work--translational research promises to shorten the time it takes to push new technology off the lab bench and into the marketplace. This issue also examines our research into fuels of the future and our computer modeling of wind power deployment, both of which point out the real-world benefits of our work.

  12. NOVA-NREL Optimal Vehicle Acquisition Analysis (Brochure)

    SciTech Connect (OSTI)

    Blakley, H.

    2011-03-01T23:59:59.000Z

    Federal fleet managers face unique challenges in accomplishing their mission - meeting agency transportation needs while complying with Federal goals and mandates. Included in these challenges are a variety of statutory requirements, executive orders, and internal goals and objectives that typically focus on petroleum consumption and greenhouse gas (GHG) emissions reductions, alternative fuel vehicle (AFV) acquisitions, and alternative fuel use increases. Given the large number of mandates affecting Federal fleets and the challenges faced by all fleet managers in executing day-to-day operations, a primary challenge for agencies and other organizations is ensuring that they are as efficient as possible in using constrained fleet budgets. An NREL Optimal Vehicle Acquisition (NOVA) analysis makes use of a mathematical model with a variety of fleet-related data to create an optimal vehicle acquisition strategy for a given goal, such as petroleum or GHG reduction. The analysis can helps fleets develop a vehicle acquisition strategy that maximizes petroleum and greenhouse gas reductions.

  13. NREL: Energy Analysis - Patrick Sullivan

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

    with General Algebraic Modeling System (GAMS) System equilibrium modeling in Matlab, including treatment of chemical species with Cantera Primary research interests...

  14. Cloud fraction, liquid and ice water contents derived from long-term radar, lidar, and microwave radiometer data are systematically compared to models to quantify and

    E-Print Network [OSTI]

    Hogan, Robin

    Cloud fraction, liquid and ice water contents derived from long-term radar, lidar, and microwave a systematic evaluation of clouds in forecast models. Clouds and their associated microphysical processes for end users of weather forecasts, who may be interested not only in cloud cover, but in other variables

  15. NREL Improves Building Energy Simulation Programs Through Diagnostic Testing (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01T23:59:59.000Z

    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. Researchers at the National Renewable Energy Laboratory (NREL) have developed a new test procedure to increase the quality and accuracy of energy analysis tools for the building retrofit market. The Building Energy Simulation Test for Existing Homes (BESTEST-EX) is a test procedure that enables software developers to evaluate the performance of their audit tools in modeling energy use and savings in existing homes when utility bills are available for model calibration. Similar to NREL's previous energy analysis tests, such as HERS BESTEST and other BESTEST suites included in ANSI/ASHRAE Standard 140, BESTEST-EX compares software simulation findings to reference results generated with state-of-the-art simulation tools such as EnergyPlus, SUNREL, and DOE-2.1E. The BESTEST-EX methodology: (1) Tests software predictions of retrofit energy savings in existing homes; (2) Ensures building physics calculations and utility bill calibration procedures perform to a minimum standard; and (3) Quantifies impacts of uncertainties in input audit data and occupant behavior. BESTEST-EX includes building physics and utility bill calibration test cases. The diagram illustrates the utility bill calibration test cases. Participants are given input ranges and synthetic utility bills. Software tools use the utility bills to calibrate key model inputs and predict energy savings for the retrofit cases. Participant energy savings predictions using calibrated models are compared to NREL predictions using state-of-the-art building energy simulation programs.

  16. NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08GO28308 Methane for Power Generation in Muaro Jambi: A Green Prosperity Model Project K. Moriarty, M. Elchinger, G. Hill, J

  17. NREL: News Feature - NREL Energizes Outreach at Education Center

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

    Energizes Outreach at Education Center March 4, 2014 Three girls learn about wind energy by assembling and operating wind turbine models. The blades spin on five wind turbine...

  18. NREL Determines Better Testing Methods for Photovoltaic Module Durability (Fact Sheet), NREL Highlights, Research & Development

    SciTech Connect (OSTI)

    Not Available

    2011-11-01T23:59:59.000Z

    NREL discoveries will enable manufacturers to produce more robust photovoltaic modules. Over the past decade, some photovoltaic (PV) modules have experienced power losses because of the system voltage stress that modules experience in fielded arrays. This is partly because qualification tests and standards do not adequately evaluate the durability of modules that undergo the long-term effects of high voltage. Scientists at the National Renewable Energy Laboratory (NREL) tried various testing methods and stress levels to demonstrate module durability to system voltage potential-induced degradation (PID) mechanisms. The results of these accelerated tests, along with outdoor testing, were used to estimate the acceleration factors needed to more accurately evaluate the durability of modules to system voltage stress. NREL was able to determine stress factors, levels, and methods for testing based on the stresses experienced by modules in the field. These results, in combination with those in the literature, suggest that constant stress with humidity and system voltage is more damaging than stress applied intermittently or with periods of recovery comprising hot and dry conditions or alternating bias in between. NREL has determined some module constructions to be extremely durable to PID. These findings will help the manufacturers of PV materials and components produce more durable products that better satisfy their customers. NREL determined that there is rapid degradation of some PV modules under system voltage stress and evaluated degradation rates in the field to develop more accurate accelerated testing methods. PV module manufacturers will be better able to choose robust materials and durable designs and guarantee sturdier, longer-lasting products. As PV modules become more durable, and thus more efficient over the long term, the risks and the cost of PV power will be reduced.

  19. NREL Provides Guidance to Improve Air Mixing and Thermal Comfort in Homes (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-02-01T23:59:59.000Z

    NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems will be downsized, and the air flow volumes required to meet heating and cooling loads may be too small to maintain uniform room air mixing-which can affect thermal comfort. Researchers at the National Renewable Energy Laboratory (NREL) evaluated the performance of high sidewall air supply inlets and confirmed that these systems can achieve good air mixing and provide suitable comfort levels for occupants. Using computational fluid dynamics modeling, NREL scientists tested the performance of high sidewall supply air jets over a wide range of parameters including supply air temperature, air velocity, and inlet size. This technique uses the model output to determine how well the supply air mixes with the room air. Thermal comfort is evaluated by monitoring air temperature and velocity in more than 600,000 control volumes that make up the occupied zone of a single room. The room has an acceptable comfort level when more than 70% of the control volumes meet the comfort criteria on both air temperature and velocity. The study shows that high sidewall supply air jets achieve uniform mixing in a room, which is essential for providing acceptable comfort levels. The study also provides information required to optimize overall space conditioning system design in both heating and cooling modes.

  20. NREL: National Wind Technology Center Home Page

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy15 April 2015 TheHarinNREL:

  1. Afghanistan-NREL Mission | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitecAWS OceanInformation AdvancedAfghanistan-NREL

  2. NREL International Program | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocus AreaDataBus Jump to: navigation, search View theNREL) Jump

  3. NREL Market Analysis | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocus AreaDataBus Jump to: navigation, search View theNREL)

  4. Working with NREL | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place:ReferenceEditWisconsin: Energy Resources JumpXcelNREL Jump to:

  5. NREL National Wind Technology Center Site Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL More than aRow 3

  6. NREL Technology Partnership Participant Data Sheet

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL

  7. NREL Technology Partnerships: Fiscal Year 2014

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL4 PARTNERSHIP

  8. NREL: Concentrating Solar Power Research - Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of WomenEvents Below areBecome PartPublications NREL

  9. NREL: International Activities - Assessments and Tools

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

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  10. NREL Publishes Gearbox Reliability Collaborative Findings Report |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOEToward aInnovationHydrogen DeliveryEnergy NREL

  11. NREL: Resource Assessment and Forecasting - Facilities

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

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  12. NREL: Resource Assessment and Forecasting - Research Staff

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

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  13. NREL: Resource Assessment and Forecasting - Webmaster

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

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  14. NREL: Solar STAT Blog - » Podcasts

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

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  15. NREL: Technology Deployment - Building Energy Systems

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergyTransportationBiopower

  16. NREL: Technology Deployment - Climate Neutral Research Campuses

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resourceEnergyTransportationBiopowerClimate

  17. NREL: Transmission Grid Integration - Grid Simulation

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

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  18. NREL: Transmission Grid Integration - Research Staff

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

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  19. NREL: Water Power Research - Working with Us

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

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  20. NREL: Technology Deployment - Models and Tools

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

    for improving this tool? Please send us an email with your thoughts. The Community Solar Scenario Tool (CSST) provides a "first cut" analysis of different community or...

  1. NREL: Energy Analysis - BSM: Biomass Scenario Model

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

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  2. NREL: Energy Analysis - Models and Tools Archive

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National Nuclearover twoPrintable Version Email

  3. NREL: Technology Deployment - Integrated Deployment Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz, Ph.D.SolarRequestEffort

  4. NREL: Transportation Research - Data, Models, and Tools

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz,Aerial photo ofStudy Transmission

  5. NREL: Energy Analysis - Models and Tools

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Regionat Cornell Batteries & FuelTechnologies The

  6. NREL: Technology Deployment - Models and Tools

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NRELIncorporatesTechnologies

  7. NREL: Technology Deployment - Project Development Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOther Federal Agency Support Photo of a

  8. NREL: Transmission Grid Integration - FESTIV Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and ResourcesOther

  9. NREL: Energy Analysis - Marissa Hummon

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

    Marissa Hummon is a member of the Energy Forecasting and Modeling Group in the Strategic Energy Analysis Center. Engineer On staff since January 2010 Phone number: 303-275-3269...

  10. Determination of accuracy of measurements by NREL`s Scanning Hartmann Optical Test instrument

    SciTech Connect (OSTI)

    Jorgensen, G.; Wendelin, T.; Carasso, M.

    1991-04-01T23:59:59.000Z

    NREL`s Scanning Hartmann Optical Test (SHOT) instrument is routinely used to characterize the surface of candidate dish concentration elements for solar thermal applications. An approach was devised to quantify the accuracy of these measurements. Excellent reproducibility was exhibited and high confidence established. The SHOT instrument was designed to allow the surface figure of large optical test articles to be accurately specified. Such test articles are nominally parabolic with an f/D ratio (in which f=focal length and D=aperture diameter) in the range of 0.5--1.0. Recent modifications of SHOT have extended the characterization range out to about f/D=3.0. A series of experiments was designed to investigate and quantify the uncertainties associated with optical characterization performed by SHOT. This approach involved making a series of measurements with an arbitrary test article positioned at a number of locations transverse to the optical axis of SHOT. 3 refs.

  11. NREL: News - NREL's Economic Benefit to Colorado totals $814.8 Million in

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy153014 NREL Research

  12. NREL PV Projects - FUPWG Meeting: "Going Coastal for Energy Efficiency...

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

    kWdc (1,200,000 kWh) one-axis tracking PV system - Grid connected (NREL "side of the meter") - Milestones Agreements: January 2008 Operation: August 2008 Solar Rewards...

  13. NREL Fuel Cell and Hydrogen Technologies Program Overview (Presentation)

    SciTech Connect (OSTI)

    Gearhart, C.

    2013-05-01T23:59:59.000Z

    The presentation, 'NREL Fuel Cell and Hydrogen Technologies Program Overview,' was presented at the Fuel Cell and Hydrogen Energy Expo and Policy Forum, April 24, 2013, Washington, D.C.

  14. NREL Releases RFP for Distributed Wind Turbine Competitiveness Improvement Projects

    Broader source: Energy.gov [DOE]

    In support of DOE's efforts to further develop distributed wind technology, NREL's National Wind Technology Center has released a Request for Proposal for the following Distributed Wind Turbine Competitiveness Improvement Projects on the Federal Business

  15. NREL Annual Environmental Performance Reports (Annual Site Environment...

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

    Every year NREL prepares an Environmental Performance Report meeting the requirements of an Annual Site Environmental Report (ASER) per DOE Order 231.1B. The report is written to...

  16. Wind and Solar Energy Curtailment Practices (Presentation), NREL...

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

    Wind and Solar Energy Curtailment Practices Lori Bird, Co-authors: Jaquelin Cochran, Xi Wang, NREL UVIG October 17, 2014 San Antonio, Texas NRELPR-6A20-63054 2 Goals of Project *...

  17. Algal Biofuels R&D at NREL (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    An overview of NREL's algal biofuels projects, including U.S. Department of Energy-funded work, projects with U.S. and international partners, and Laboratory Directed Research and Development projects.

  18. NREL Overcomes Obstacles in Lignin Valorization (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    This NREL Highlight is being produced for the 2015 February Alliance S&T Board meeting, and describes research that shows lignin can be converted into renewable fuels, chemicals, and materials.

  19. NREL Studies Wind Farm Aerodynamics to Improve Siting (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01T23:59:59.000Z

    NREL researchers have used high-tech instruments and high-performance computing to understand atmospheric turbulence and turbine wake behavior in order to improve wind turbine design and siting within wind farms.

  20. NREL Advances Feedforward Control in Turbines (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    This NREL Highlight is being produced for the 2015 February Alliance S&T Board meeting, and describes research that uses lidar and feedforward algorithms to improve rotor speed regulation and reduce costs of maintenance and operation.

  1. NREL: Systems Engineering - 2010 Wind Energy Systems Engineering...

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

    0 Wind Energy Systems Engineering Workshop The 1st NREL Wind Energy Systems Engineering Workshop took place on December 14, 2010, at the National Wind Technology Center (NWTC). The...

  2. From Biomass to Biofuels: NREL Leads the Way

    SciTech Connect (OSTI)

    Not Available

    2006-08-01T23:59:59.000Z

    This brochure covers how biofuels can help meet future needs for transportation fuels, how biofuels are produced, U.S. potential for biofuels, and NREL's approach to efficient affordable biofuels.

  3. Advanced Petroleum-Based Fuels Research at NREL

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

    Petroleum-Based Fuels Research at NREL Bradley Zigler(PI) With Wendy Clark, Xin He, Jon Luecke, and Matt Ratcliff Vehicle Technologies Program Merit Review Fuels Technologies June...

  4. Sustainable NREL - Site Sustainability Plan FY 2015 (Management Publication)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    NREL's Site Sustainability Plan FY 2015 reports on sustainability plans for the lab for the year 2015 based on Executive Order Goals and provides the status on planned actions cited in the FY 2014 report.

  5. Taking stock of renewables: NREL teaches farm and ranch appliations

    SciTech Connect (OSTI)

    Marsh, M.G. [NREL, Golden, CO (United States)

    1996-09-01T23:59:59.000Z

    NREL workshop leaders find a receptive audience for renewable energy technologies among farmers and ranchers. As an exhibitor/participant in Denver`s National Western Stock Show, the National Renewable Energy Laboratory (NREL) of Golden, Colorado sponsored an educational workshop to demonstrate applications of solar and wind energy on the farm and ranch, offering a very non-traditional energy approach to people who pride themselves in tradition. This article describes solar and wind energy applications to farms and ranches.

  6. NREL Uses Computing Power to Investigate Tidal Power (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01T23:59:59.000Z

    Until now, wind turbine controls that reduce the impacts of wind gusts and turbulence were always reactive - responding to the wind rather than anticipating it. But with today's laser-based sensors that measure wind speed ahead of the turbine, researchers at the National Renewable Energy Laboratory (NREL) and their industry partners are developing more intelligent controls. The world's first field tests of these controls are currently underway at the National Wind Technology Center (NWTC) at NREL, with plans for future commercialization.

  7. Latest Innovations from NREL in the United States

    SciTech Connect (OSTI)

    Noun, R. J.

    2011-01-01T23:59:59.000Z

    For more than 30 years, the National Renewable Energy Laboratory (NREL) has advanced the science of renewable energy and energy efficiency technologies while building the capabilities to guide rapid deployment of commercial applications. Today, NREL is at the epicenter for the transformation of our energy systems - enabling a future of sustainable energy systems based on clean, cost-effective, and secure resources. The laboratory has recently made significant technological advances, including in the buildings, electricity, and geothermal fields.

  8. FY2011 Annual Report for NREL Energy Storage Projects

    SciTech Connect (OSTI)

    Pesaran, A.; Ban, C.; Dillon, A.; Gonder, J.; Ireland, J.; Keyser, M.; Kim, G. H.; Lee, K. J.; Long, D.; Neubauer, J.; Santhangopalan, S.; Smith, K.

    2012-04-01T23:59:59.000Z

    This report describes the work of NREL's Energy Storage group for FY2011. The National Renewable Energy Laboratory (NREL) supports energy storage R&D under the Vehicle Technologies Program at the U.S. Department of Energy (DOE). The DOE Energy Storage program's charter is to develop battery technologies that will enable large market penetration of electric drive vehicles. These vehicles could have a significant impact on the nation's goal of reducing dependence on imported oil and gaseous pollutant emissions. DOE has established several program activities to address and overcome the barriers limiting the penetration of electric drive battery technologies: cost, performance, safety, and life. These programs are: (1) Advanced Battery Development [through the United States Advanced Battery Consortium (USABC)]; (2) Testing, Design and Analysis (TDA); (3) Applied Battery Research (ABR); and (4) Focused Fundamental Research, or Batteries for Advanced Transportation Technologies (BATT). In FY11, DOE funded NREL to make technical contributions to all of these R&D activities. This report summarizes NREL's R&D projects in FY11 in support of the USABC, TDA, ABR, and BATT program elements. In addition, we continued the enhancement of NREL's battery testing facilities funded through the American Reinvestment and Recovery Act (ARRA) of 2009. The FY11 projects under NREL's Energy Storage R&D program are briefly described below. Each of these is discussed in depth in the main sections of this report.

  9. Environmental Management Assessment of the National Renewable Energy Laboratory (NREL)

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    This report documents the results of the environmental management assessment performed at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. The onsite portion of the assessment was conducted from September 14 through September 27, 1993, by DOE`s Office of Environmental Audit (EH-24) located within the Office of the Assistant Secretary for Environment, Safety, and Health (EH-1). During this assessment, the activities conducted by the assessment team included reviews of internal documents and reports from previous audits and assessments; interviews with US Department of Energy (DOE) and NREL contractor personnel; and inspections and observations of selected facilities and operations. The environmental management assessment of NREL focused on the adequacy of environmental management systems and assessed the formality of programs employing an approach that recognizes the level of formality implementing environmental programs may vary commensurate with non-nuclear research and development operations. The Assessment Team evaluated environmental monitoring, waste management and National Environmental Policy Act (NEPA) activities at NREL, from a programmatic standpoint. The results of the evaluation of these areas are contained in the Environmental Protection Programs section of this report. The scope of the NREL Environmental Management Assessment was comprehensive and included all areas of environmental management. At the same time, environmental monitoring, waste management, and NEPA activities were evaluated to develop a programmatic understanding of these environmental disciplines, building upon the results of previous appraisals, audits, and reviews performed at the NREL.

  10. The DOE/NREL Environmental Science Program

    SciTech Connect (OSTI)

    Douglas R. Lawson; Michael Gurevich

    2001-05-14T23:59:59.000Z

    This paper summarizes the several of the studies in the Environmental Science Program being sponsored by DOE's Office of Heavy Vehicle Technologies (OHVT) through the National Renewable Energy Laboratory (NREL). The goal of the Environmental Science Program is to understand atmospheric impacts and potential health effects that may be caused by the use of petroleum-based fuels and alternative transportation fuels from mobile sources. The Program is regulatory-driven, and focuses on ozone, airborne particles, visibility and regional haze, air toxics, and health effects of air pollutants. Each project in the Program is designed to address policy-relevant objectives. Current projects in the Environmental Science Program have four areas of focus: improving technology for emissions measurements; vehicle emissions measurements; emission inventory development/improvement; ambient impacts, including health effects.

  11. NREL's Gearbox Reliability Collaborative leads to wind turbine gearbox reliability, lowering the cost of energy.

    E-Print Network [OSTI]

    NREL's Gearbox Reliability Collaborative leads to wind turbine gearbox reliability, lowering operations. In 2007, the National Renewable Energy Laboratory (NREL) initi- ated the Gearbox Reliability that contribute to reduced gearbox reliability. In contrast to private investigations of these problems, GRC

  12. NREL's Clean Energy Policy Analyses Project: 2009 U.S. State...

    Energy Savers [EERE]

    NREL's Clean Energy Policy Analyses Project: 2009 U.S. State Clean Energy Data Book NREL's Clean Energy Policy Analyses Project: 2009 U.S. State Clean Energy Data Book This data...

  13. Tracking the Path of the Sun: Profiling an NREL Senior Scientist...

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

    Tracking the Path of the Sun: Profiling an NREL Senior Scientist Tracking the Path of the Sun: Profiling an NREL Senior Scientist June 5, 2012 - 1:27pm Addthis Metrologist Ibrahim...

  14. An Overview of NREL's Online Data Tool for Fuel Cell System-Derived...

    Energy Savers [EERE]

    An Overview of NREL's Online Data Tool for Fuel Cell System-Derived Contaminants An Overview of NREL's Online Data Tool for Fuel Cell System-Derived Contaminants Download...

  15. Ultra Energy Efficient Data Center Saves NREL $200,000 | Department...

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

    Ultra Energy Efficient Data Center Saves NREL 200,000 Ultra Energy Efficient Data Center Saves NREL 200,000 November 14, 2011 - 5:08pm Addthis The National Renewable Energy...

  16. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.

    E-Print Network [OSTI]

    Allocation Model BASE Biomass Allocation and Supply Equilibrium BAU business as usual bgy billion gallons per year BREW bulk chemicals from renewable resources BSM Biomass Scenario Model CHP combined heatNREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency

  17. NREL Breaks New Ground in Plant Pretreatment for Biofuels (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01T23:59:59.000Z

    NREL researchers use imaging technologies to broaden knowledge of plant cell wall structures and identify ideal pretreatment of plant material.

  18. AHEM Lab Opens Doors to New Technology Test Bed at NREL (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01T23:59:59.000Z

    NREL studies smart sensors and dynamic control systems to help homeowners conserve energy, save money, and live comfortably.

  19. NREL Guidelines for Preparing a Subcontractors Health and Safety...

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

    - Industrial hygiene - Ladders and scaffolds, includes aerial lifts - Lifting - LockoutTagout (NREL LOTO Program) - Material handling - Occupational Health Medical...

  20. NREL's FY09 CSP Resource Assessment Plans: Solar Resource Assessment Workshop

    SciTech Connect (OSTI)

    Renne, D.

    2008-10-29T23:59:59.000Z

    Solar Resource Assessment Workshop, Denver CO, Oct 29, 2008 presentation: NREL's FY09 CSP Resource Assessment Plans

  1. NREL and Industry Advance Low-Cost Solar Water Heating R&D (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-08-01T23:59:59.000Z

    NREL and Rhotech develop cost-effective solar water heating prototype to rival natural gas water heater market.

  2. Commercialization and Deployment at NREL: Advancing Renewable Energy and Energy Efficiency at Speed and Scale

    SciTech Connect (OSTI)

    Not Available

    2011-05-11T23:59:59.000Z

    A White Paper overview of NREL's commercialization and deployment activities, requested by the chair of the State Energy Advisory Board.

  3. NREL Fights Corrosion to Cut Costs in CSP Plants (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01T23:59:59.000Z

    NREL investigates how best to protect tanks and pipelines used for thermal energy storage and heat transfer fluids.

  4. Spherical Shell Cosmological Model and Uniformity of Cosmic Microwave Background Radiation

    E-Print Network [OSTI]

    Branislav Vlahovic

    2012-07-06T23:59:59.000Z

    Considered is spherical shell as a model for visible universe and parameters that such model must have to comply with the observable data. The topology of the model requires that motion of all galaxies and light must be confined inside a spherical shell. Consequently the observable universe cannot be defined as a sphere centered on the observer, rather it is an arc length within the volume of the spherical shell. The radius of the shell is 4.46 $\\pm$ 0.06 Gpc, which is for factor $\\pi$ smaller than radius of a corresponding 3-sphere. However the event horizon, defined as the arc length inside the shell, has the size of 14.0 $\\pm$ 0.2 Gpc, which is in agreement with the observable data. The model predicts, without inflation theory, the isotropy and uniformity of the CMB. It predicts the correct value for the Hubble constant $H_0$ = 67.26 $\\pm$ 0.90 km/s/Mpc, the cosmic expansion rate $H(z)$, and the speed of the event horizon in agreement with observations. The theoretical suport for shell model comes from general relativity, curvature of space by mass, and from holographic principle. The model explains the reason for the established discrepancy between the non-covariant version of the holographic principle and the calculated dimensionless entropy $(S/k)$ for the visible universe, which exceeds the entropy of a black hole. The model is in accordance with the distribution of radio sources in space, type Ia data, and data from the Hubble Ultra Deep Field optical and near-infrared survey.

  5. innovati nNREL Innovations Contribute to an Award-Winning Small Wind Turbine

    E-Print Network [OSTI]

    innovati nNREL Innovations Contribute to an Award-Winning Small Wind Turbine The Skystream 3.7 wind turbine is the result of a decade-long collaboration between the National Renewable Energy Laboratory (NREL) and Southwest Windpower, a commercially successful small wind turbine manufacturer. NREL drew

  6. NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36 Margolis National Renewable Energy Laboratory Technical Report NREL/TP-6A20-60401 October 2013 #12;NREL

  7. Investing in the Energy Future: An Industry Guide to Licensing Technologies at the National Renewable Energy Laboratory (NREL) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01T23:59:59.000Z

    Provides an overview of NREL's licensing opportunities and processes, and commercialization programs.

  8. NREL: News - NREL Research Earns Two Prestigious R&D 100 Awards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy153014 NREL Research Earns

  9. NREL: News Feature - NREL Software Tool a Boon for Wind Industry

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National NuclearoverAcquisitionEnergy153014 NRELRelatedNREL

  10. NREL Leads Energy Systems Integration: Issue 4 (Book), Continuum Magazine, NREL (National Renewable Energy Laboratory)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL More than a

  11. NREL: News - NREL Offers an Open-Source Solution for Large-Scale Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff Materials and Chemical30214 NREL

  12. NREL: News - NREL Refines Method to Convert Lignin to Nylon Precursor

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff Materials and Chemical30214015 NREL

  13. NREL: News Feature - At NREL, Even the Ones and Zeros Are Green

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff MaterialsPrintable Version615At NREL,

  14. NREL: News Feature - NREL Science Crucial to Success of New Biofuels Plants

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff MaterialsPrintableHPDriving ResearchNREL

  15. NREL: News Feature - NREL Solar Technology Will Warm Air at 'Home'

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch Staff MaterialsPrintableHPDrivingNREL Solar

  16. NREL: News Feature - NREL's Newest PE-Licensed Engineers Commit to

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch StaffSustainability NREL's Newest

  17. The prediction of root zone soil moisture with a water balance - microwave emission model

    E-Print Network [OSTI]

    Smith, Michael Robert

    2012-06-07T23:59:59.000Z

    . T (1-) = T (I-) = T (I + e t &Rz) + ( T (I + e R. ) 8 e el I=2 ei i+ I (II-18) where -2a azi T =T. (1-e ) e. i 1 n = number of layers Rn =0 bz n To describe the brightness temperature above the soil sur face, the effective temperature of emi... and Groundtruth. Analysis of the Surface Flux Approach RADCON Model Scatter Due to Soil Variability . Selection of 21 cm Wavelength over 6 cm Wavelength. V CONCLUSION Summary of Results. Recommendations REFERENCES. 72 72 76 80 83 90 100 109 109...

  18. NREL's OpenStudio Helps Design More Efficient Buildings (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-07-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) has created the OpenStudio software platform that makes it easier for architects and engineers to evaluate building energy efficiency measures throughout the design process. OpenStudio makes energy modeling more accessible and affordable, helping professionals to design structures with lower utility bills and less carbon emissions, resulting in a healthier environment. OpenStudio includes a user-friendly application suite that makes the U.S. Department of Energy's EnergyPlus and Radiance simulation engines easier to use for whole building energy and daylighting performance analysis. OpenStudio is freely available and runs on Windows, Mac, and Linux operating systems.

  19. 5. A. Cappy, Noise modeling and measurement techniques, IEEE Z .Trans Microwave Theory Tech 36 1988 , 1 10.

    E-Print Network [OSTI]

    Masoudi, Husain M.

    power loss. 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 26: 385 390, 2000. Key words waveguides, and sometimes it is accompanied by substantial power loss. An alternative technique with little power loss. We use the three-dimensional explicit Z .finite-difference beam-propagation method EFD

  20. NREL Proves Cellulosic Ethanol Can Be Cost Competitive (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01T23:59:59.000Z

    Ethanol from non-food sources - known as "cellulosic ethanol" - is a near-perfect transportation fuel: it is clean, domestic, abundant, and renewable, and it can potentially replace 30% of the petroleum consumed in the United States, but its relatively high cost has limited its market. That changed in 2012, when the National Renewable Energy Laboratory (NREL) demonstrated the technical advances needed to produce cellulosic ethanol at a minimum ethanol selling price of $2.15/gallon (in 2007 dollars). Through a multi-year research project involving private industry, NREL has proven that cellulosic ethanol can be cost competitive with other transportation fuels.

  1. Realizing a Clean Energy Future: Highlights of NREL Analysis (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2013-12-01T23:59:59.000Z

    Profound energy system transformation is underway. In Hawaiian mythology, Maui set out to lasso the sun in order to capture its energy. He succeeded. That may have been the most dramatic leap forward in clean energy systems that the world has known. Until now. Today, another profound transformation is underway. A combination of forces is taking us from a carbon-centric, inefficient energy system to one that draws from diverse energy sources - including the sun. NREL analysis is helping guide energy systems policy and investment decisions through this transformation. This brochure highlights NREL analysis accomplishments in the context of four thematic storylines.

  2. Costa Rica-NREL Energy Activities | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (The following text isRica NREL Cooperation Name Costa-Rica NREL

  3. NREL: Resource Assessment and Forecasting - Working with Us

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resource assessment andWorking with Us NREL

  4. NREL Software Models Performance of Wind Plants (Fact Sheet), NREL Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National Nuclearover two yearsNPResults giveSimulator fOr Wind

  5. Microwave Radiometer (MWR) Handbook

    SciTech Connect (OSTI)

    Morris, VR

    2006-08-01T23:59:59.000Z

    The Microwave Radiometer (MWR) provides time-series measurements of column-integrated amounts of water vapor and liquid water. The instrument itself is essentially a sensitive microwave receiver. That is, it is tuned to measure the microwave emissions of the vapor and liquid water molecules in the atmosphere at specific frequencies.

  6. NREL Success Stories - Quest for Inexpensive Silicon Solar Cells

    ScienceCinema (OSTI)

    Branz, Howard

    2013-05-29T23:59:59.000Z

    Scientists at the National Renewable Energy Laboratory (NREL) share their story about a successful partnership with Oak Ridge National Laboratory and the Ampulse Corporation and how support from the US Department of Energy's Technology Commercialization & Deployment Fund has helped it and their silicon solar cell research thrive.

  7. NREL Innovations Help Drive Wind Industry Transformation (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01T23:59:59.000Z

    For nearly 30 years, NREL has helped the wind turbine industry through design and research innovations. The comprehensive capabilities of the National Wind Technology Center (NWTC), ranging from specialized computer simulation tools to unique test facilities, has been used to design, develop, and deploy several generations of advanced wind energy technology.

  8. innovati nNREL's Industry Growth Forum Boosts Clean Energy

    E-Print Network [OSTI]

    innovati nNREL's Industry Growth Forum Boosts Clean Energy Commercialization Efforts For more than's premier event for early-stage clean energy investment. The forum features presentations from the most innovative, promising, and emergent clean energy companies; provocative panels led by thought leaders

  9. Conference Paper NREL/CP-540-47951

    E-Print Network [OSTI]

    vehicles--provide a new opportunity for reducing oil consumption by drawing power from the electric gridConference Paper NREL/CP-540-47951 April 2010 Plug-in Electric Vehicle Infrastructure: A Foundation, including 20% postconsumer waste #12;1 Plug-in Electric Vehicle Infrastructure: A Foundation for Electrified

  10. NREL/TP.620.29831 September 2001

    E-Print Network [OSTI]

    and Lori Bird National Renewable Energy Laboratory A national laboratory of the U.S. Department of Energy The Topical Issues Brief series is sponsored by DOE's Office of Energy Efficiency and Renewable Energy Office://www.doe.gov/bridge/home.html Printed on paper containing at least 50% wastepaper, including 20% postconsumer waste #12;NREL/TP.620

  11. Technical Report NREL/TP-550-46275

    E-Print Network [OSTI]

    Technical Report NREL/TP-550-46275 July 2009 Calculating Wind Integration Costs: Separating Wind/TP-550-46275 July 2009 Calculating Wind Integration Costs: Separating Wind Energy Value from Integration% postconsumer waste #12;1 Calculating Wind Integration Costs: Separating Wind Energy Value from Integration Cost

  12. Technical Report NREL/TP-6A2-45551

    E-Print Network [OSTI]

    the course of this work: Elizabeth Doris of the National Renewable Energy Laboratory (NREL), who reviewed Karlynn Cory National Renewable Energy Laboratory #12;National Renewable Energy Laboratory 1617 Cole in the United States Toby Couture E3 Analytics Karlynn Cory National Renewable Energy Laboratory Prepared under

  13. Technical Report NREL/TP-6A2-47187

    E-Print Network [OSTI]

    control AS ancillary services CAES compressed-air energy storage CCGT combined-cycle gas turbine CCRTechnical Report NREL/TP-6A2-47187 January 2010 The Role of Energy Storage with Renewable/TP-6A2-47187 January 2010 The Role of Energy Storage with Renewable Electricity Generation Paul Denholm

  14. Technical Report NREL/TP-6A2-48594

    E-Print Network [OSTI]

    Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-48594 August 2010 solar power systems in West V

  15. Technical Report NREL-TP-6A2-45833

    E-Print Network [OSTI]

    of Concentrating Solar Power and Thermal Energy Storage Ramteen Sioshansi The Ohio State University Columbus, OhioTechnical Report NREL-TP-6A2-45833 February 2010 The Value of Concentrating Solar Power and Thermal of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy

  16. Technical Report NREL/TP-550-46698

    E-Print Network [OSTI]

    of the new technologies recently introduced into the electric power system is distributed energy resources (DER). Currently, inverter-based DER contribute very little to the power balance on all but a fewTechnical Report NREL/TP-550-46698 January 2010 Understanding Fault Characteristics of Inverter

  17. Technical Report NREL/TP-550-46345

    E-Print Network [OSTI]

    of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-550-46345 August 2009 Field vehicles (PHEVs) into the Xcel Energy Colorado Service Territory. The study indicated the potential

  18. NREL/TP-620-35609 ERNEST ORLANDO LAWRENCE

    E-Print Network [OSTI]

    LBNL-54437 NREL/TP-620-35609 ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY NATIONAL Ryan Wiser and Scott Olson Lawrence Berkeley National Laboratory 1 Cyclotron Rd., MS 90-4000 Berkeley, California 94720 Lori Bird and Blair Swezey National Renewable Energy Laboratory 1617 Cole Blvd. Golden

  19. NREL Sheds Light on Integration Costs of Variable Generation and

    E-Print Network [OSTI]

    , such as wind and solar energy, provide benefits such as reduced environmental impact, lack of fuel consumptionNREL Sheds Light on Integration Costs of Variable Generation and Cost-Causation Integration costs are generally manageable, but calculating costs is challenging. Renewable energy generation sources

  20. Subcontract Report NREL/SR-7A2-48318

    E-Print Network [OSTI]

    DSM demand side management EB existing buildings EEPS Energy Efficiency Portfolio Standard EER energySubcontract Report NREL/SR-7A2-48318 June 2010 Hawaii Clean Energy Initiative Existing Building Existing Building Energy Efficiency Analysis November 17, 2009 ­ June 30, 2010 P. Finch and A. Potes Booz

  1. Significant Enhancement of Computational Efficiency in Nonlinear Multiscale Battery Model for Computer Aided Engineering (Presentation)

    SciTech Connect (OSTI)

    Kim, G.; Pesaran, A.; Smith, K.; Graf, P.; Jun, M.; Yang, C.; Li, G.; Li, S.; Hochman, A.; Tselepidakis, D.; White, J.

    2014-06-01T23:59:59.000Z

    This presentation discusses the significant enhancement of computational efficiency in nonlinear multiscale battery model for computer aided engineering in current research at NREL.

  2. Lithium-Ion Battery Safety Study Using Multi-Physics Internal Short-Circuit Model (Presentation)

    SciTech Connect (OSTI)

    Kim, G-.H.; Smith, K.; Pesaran, A.

    2009-06-01T23:59:59.000Z

    This presentation outlines NREL's multi-physics simulation study to characterize an internal short by linking and integrating electrochemical cell, electro-thermal, and abuse reaction kinetics models.

  3. A Tale of Two Cities: Greensburg Rebuilds as a National Model...

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

    Innovation, NREL (National Renewable Energy Laboratory) Leading the Nation in Clean Energy Deployment Rebuilding Greensburg, Kansas, as a Model Green Community: A Case Study;...

  4. Multi-Scale Multi-Dimensional Model for Better Cell Design and Management (Presentation)

    SciTech Connect (OSTI)

    Kim, G.-H.; Smith, K.

    2008-09-01T23:59:59.000Z

    Describes NREL's R&D to develop a multi-scale model to assist in designing better, more reliable lithium-ion battery cells for advanced vehicles.

  5. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.

    E-Print Network [OSTI]

    NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency.........................................................................................................................................3 STANDARD DISCLOSURES NREL ORGANIZATIONAL PROFILE

  6. Solar Resource Measurements in Cocoa, Florida (FSEC) - Equipment Loaned to NREL: Cooperative Research and Development Final Report, CRADA Number CRD-08-318

    SciTech Connect (OSTI)

    Stoffel, T.; Afshin, A.

    2014-01-01T23:59:59.000Z

    Site-specific measurements of global and diffuse solar irradiance components, passively separated by alternate shading and unshading of a pyranometer mounted under a shading band with alternating opaque and open panels (for a site other than NREL) are needed to verify the underlying theory and mathematical techniques for developing direct, global and diffuse renewable resource data from such a system. These data are used for several research and development activities consistent with the NREL mission: Establish a national 30-year climatological database of measured solar irradiances; Support development of radiative transfer models for estimating solar irradiance from available meteorological observations; Provide solar resource information needed for technology deployment and operations. NREL will provide the supporting equipment (Shadow Bank Stand) for the specially designed shading band. FSEC will provide the calibrated pyranometer and perform data acquisition of the radiometer signal. Data acquired under this agreement will be shared with the NREL Principle Investigator for the purposes of validating techniques for estimating direct radiation from global and diffuse components measured with the ZEBRA system.

  7. NREL Evaluates the Thermal Performance of Uninsulated Walls to Improve the Accuracy of Building Energy Simulation Tools (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01T23:59:59.000Z

    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. Researchers at the National Renewable Energy Laboratory (NREL) have developed models for evaluating the thermal performance of walls in existing homes that will improve the accuracy of building energy simulation tools when predicting potential energy savings of existing homes. Uninsulated walls are typical in older homes where the wall cavities were not insulated during construction or where the insulating material has settled. Accurate calculation of heat transfer through building enclosures will help determine the benefit of energy efficiency upgrades in order to reduce energy consumption in older American homes. NREL performed detailed computational fluid dynamics (CFD) analysis to quantify the energy loss/gain through the walls and to visualize different airflow regimes within the uninsulated cavities. The effects of ambient outdoor temperature, radiative properties of building materials, and insulation level were investigated. The study showed that multi-dimensional airflows occur in walls with uninsulated cavities and that the thermal resistance is a function of the outdoor temperature - an effect not accounted for in existing building energy simulation tools. The study quantified the difference between CFD prediction and the approach currently used in building energy simulation tools over a wide range of conditions. For example, researchers found that CFD predicted lower heating loads and slightly higher cooling loads. Implementation of CFD results into building energy simulation tools such as DOE2 and EnergyPlus will likely reduce the predicted heating load of homes. Researchers also determined that a small air gap in a partially insulated cavity can lead to a significant reduction in thermal resistance. For instance, a 4-in. tall air gap (Figure 1a) led to a 15% reduction in resistance. Similarly, a 2-ft tall air gap (Figure 1c) led to 54% reduction in thermal resistance. NREL researchers plan to extend this study to include additional wall configurations, and also to evaluate the performance of attic spaces with different insulation levels. NREL's objective is to address each potential issue that leads to inaccuracies in building energy simulation tools to improve the predictions.

  8. High brightness microwave lamp

    DOE Patents [OSTI]

    Kirkpatrick, Douglas A.; Dolan, James T.; MacLennan, Donald A.; Turner, Brian P.; Simpson, James E.

    2003-09-09T23:59:59.000Z

    An electrodeless microwave discharge lamp includes a source of microwave energy, a microwave cavity, a structure configured to transmit the microwave energy from the source to the microwave cavity, a bulb disposed within the microwave cavity, the bulb including a discharge forming fill which emits light when excited by the microwave energy, and a reflector disposed within the microwave cavity, wherein the reflector defines a reflective cavity which encompasses the bulb within its volume and has an inside surface area which is sufficiently less than an inside surface area of the microwave cavity. A portion of the reflector may define a light emitting aperture which extends from a position closely spaced to the bulb to a light transmissive end of the microwave cavity. Preferably, at least a portion of the reflector is spaced from a wall of the microwave cavity. The lamp may be substantially sealed from environmental contamination. The cavity may include a dielectric material is a sufficient amount to require a reduction in the size of the cavity to support the desired resonant mode.

  9. Microwave hemorrhagic stroke detector

    DOE Patents [OSTI]

    Haddad, Waleed S. (Dublin, CA); Trebes, James E. (Livermore, CA)

    2002-01-01T23:59:59.000Z

    The microwave hemorrhagic stroke detector includes a low power pulsed microwave transmitter with a broad-band antenna for producing a directional beam of microwaves, an index of refraction matching cap placed over the patients head, and an array of broad-band microwave receivers with collection antennae. The system of microwave transmitter and receivers are scanned around, and can also be positioned up and down the axis of the patients head. The microwave hemorrhagic stroke detector is a completely non-invasive device designed to detect and localize blood pooling and clots or to measure blood flow within the head or body. The device is based on low power pulsed microwave technology combined with specialized antennas and tomographic methods. The system can be used for rapid, non-invasive detection of blood pooling such as occurs with hemorrhagic stroke in human or animal patients as well as for the detection of hemorrhage within a patient's body.

  10. Microwave hemorrhagic stroke detector

    DOE Patents [OSTI]

    Haddad, Waleed S. (Dublin, CA); Trebes, James E. (Livermore, CA)

    2007-06-05T23:59:59.000Z

    The microwave hemorrhagic stroke detector includes a low power pulsed microwave transmitter with a broad-band antenna for producing a directional beam of microwaves, an index of refraction matching cap placed over the patients head, and an array of broad-band microwave receivers with collection antennae. The system of microwave transmitter and receivers are scanned around, and can also be positioned up and down the axis of the patients head. The microwave hemorrhagic stroke detector is a completely non-invasive device designed to detect and localize blood pooling and clots or to measure blood flow within the head or body. The device is based on low power pulsed microwave technology combined with specialized antennas and tomographic methods. The system can be used for rapid, non-invasive detection of blood pooling such as occurs with hemorrhagic stoke in human or animal patients as well as for the detection of hemorrhage within a patient's body.

  11. NREL Helps Apply Renewable Energy and Energy Efficiency Technologies Worldwide (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-04-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) applies its technical expertise and capabilities to promote the use of renewable energy (RE) and energy efficiency (EE) technologies throughout the world. NREL's international work spans our full range of capabilities, which include three primary areas of expertise: 1. Analysis - NREL provides technology-neutral information, global and regional assessments and decision tools, and expert advice. 2. Research and Development - NREL conducts collaborative research and development (R&D) and shares methods and results with leading research institutions throughout the world. 3. Deployment/Commercialization - NREL teams with private industry, other countries, and international institutions to invest in RE and EE technologies. This fact sheet highlights NREL's international multilateral partnerships, bilateral partnerships, climate and environmental initiatives, and energy assessments and resources.

  12. HOMER® Micropower Optimization Model

    SciTech Connect (OSTI)

    Lilienthal, P.

    2005-01-01T23:59:59.000Z

    NREL has developed the HOMER micropower optimization model. The model can analyze all of the available small power technologies individually and in hybrid configurations to identify least-cost solutions to energy requirements. This capability is valuable to a diverse set of energy professionals and applications. NREL has actively supported its growing user base and developed training programs around the model. These activities are helping to grow the global market for solar technologies.

  13. Low density inorganic foams fabricated using microwaves

    SciTech Connect (OSTI)

    Meek, T.T.; Blake, R.D.; Gregory, T.G.

    1985-01-01T23:59:59.000Z

    The objective of our work was to determine if high temperature foams could be made using microwave heating; and if so, to investigate some of their properties. Several foams were made and their compressive strengths, tensile strengths and densities were determined. Foams were made of glass, metal-glass, glass-fiber, metal-glass-fiber, and fly ash. The microwave source used was a Litton model 1521 microwave oven which operated at 2.45 GHz and had an output of 700 watts.

  14. R[ CIPIENT:NREL U.S. DEPARThLFNT OF ENERGY EER E PROJECT MANAGEMENT...

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

    NEPA DETlRMINATION Page 1 00 STATE: CO PROJECT TITLE: Regional Test Center Project: Solar Technology Acceleration Center (SolarTAC); NREL Tracking No. 12- 007 Funding...

  15. Hydrogen Production from Biomass via Indirect Gasification: The Impact of NREL Process Development Unit Gasifier Correlations

    SciTech Connect (OSTI)

    Kinchin, C. M.; Bain, R. L.

    2009-05-01T23:59:59.000Z

    This report describes a set of updated gasifier correlations developed by NREL to predict biomass gasification products and Minimum Hydrogen Selling Price.

  16. NREL UL E15 Fuel Dispensing Infrastructure Intermediate Blends Performance Testing (Presentation)

    SciTech Connect (OSTI)

    Moriarty, K.; Clark, W.

    2011-02-01T23:59:59.000Z

    Presentation provides an overview of NREL's project to determine compatibility and safe performance of installed fuel dispensing infrastructure with E15.

  17. NREL Develops Simulations for Wind Plant Power and Turbine Loads (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01T23:59:59.000Z

    NREL researchers are the first to use a high-performance computing tool for a large-eddy simulation of an entire wind plant.

  18. NREL: Wind Research - Special Notice: 2016 U.S. Department of...

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

    Special Notice: 2016 U.S. Department of Energy Collegiate Wind Competition September 16, 2014 The U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL)...

  19. Partnering with Industry to Advance Biofuels, NREL's Integrated Biorefinery Research Facility (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-10-01T23:59:59.000Z

    Fact sheet describing NREL's Integrated Biorefinery Research Facility and its availability to biofuels' industry partners who want to operate, test, and develop biorefining technology and equipment.

  20. Did You Know?: Sharing Stories of NREL's Work to Transform Our Energy Future (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-06-01T23:59:59.000Z

    This document tells the story of how an NREL team lead by Terry Penney was instrumental in bringing hybrid vehicles to market.

  1. NREL Gearbox Reliability Collaborative: Comparing In-Field Gearbox Response to Different Dynamometer Test Conditions: Preprint

    SciTech Connect (OSTI)

    LaCava, W.; van Dam, J.; Wallen, R.; McNiff, B.

    2011-08-01T23:59:59.000Z

    This paper presents the results of NREL's Gearbox Reliability Collaborative comparison of dynamometer tests conducted on a 750-kW gearbox to field testing.

  2. NREL Uses Fuel Cells to Increase the Range of Battery Electric Vehicles (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-01-01T23:59:59.000Z

    NREL analysis identifies potential cost-effective scenarios for using small fuel cell power units to increase the range of medium-duty battery electric vehicles.

  3. NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation (Presentation)

    SciTech Connect (OSTI)

    Ramsden, T.; Harrison, K.; Steward, D.

    2009-11-16T23:59:59.000Z

    Presentation about NREL's Wind to Hydrogen Project and producing renewable hydrogen for both energy storage and transporation, including the challenges, sustainable pathways, and analysis results.

  4. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. NREL Planning & Analysis

    E-Print Network [OSTI]

    increase in electricity prices #12;Innovation for Our Energy FutureNational Renewable Energy LaboratoryNREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. NREL Planning & Analysis NREL

  5. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. 22nd NREL Industry Growth Forum

    E-Print Network [OSTI]

    and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. 22nd NREL Industry Growth ForumNREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency;National Renewable Energy Laboratory Innovation for Our Energy Future The 22nd NREL Industry Growth Forum

  6. Cosmic Microwave Background Polarization

    E-Print Network [OSTI]

    James G. Bartlett

    2006-04-18T23:59:59.000Z

    Cosmic microwave background (CMB) anisotropy is our richest source of cosmological information; the standard cosmological model was largely established thanks to study of the temperature anisotropies. By the end of the decade, the Planck satellite will close this important chapter and move us deeper into the new frontier of polarization measurements. Numerous ground--based and balloon--borne experiments are already forging into this new territory. Besides providing new and independent information on the primordial density perturbations and cosmological parameters, polarization measurements offer the potential to detect primordial gravity waves, constrain dark energy and measure the neutrino mass scale. A vigorous experimental program is underway worldwide and heading towards a new satellite mission dedicated to CMB polarization.

  7. NREL Research on Converting Biomass to Liquid Fuels

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    Unlike other renewable energy sources, biomass can be converted directly into liquid fuels, called "biofuels," to help meet transportation fuel needs. The two most common types of biofuels are ethanol and biodiesel. Today, ethanol is made from starches and sugars, but at the National Renewable Energy Laboratory (NREL) scientists are developing technology to allow it to be made from cellulose and hemicellulose, the fibrous material that makes up the bulk of most plant matter. Biodiesel is made by combining alcohol (usually methanol) with vegetable oil, animal fat, or recycled cooking grease. It can be used as an additive (typically 20%) to reduce vehicle emissions or in its pure form as a renewable alternative fuel for diesel engines. For a text version of this video visit http://www.nrel.gov/learning/re_biofuels.html

  8. NREL Case Study Leads to International Partnership (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-12-01T23:59:59.000Z

    In 2012, NREL analysts produced a case study, "Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience," which drew upon dozens of interviews with international experts involved in crafting effective policies and markets. The report proposed a cross-cutting initiative to transform the world's power systems by implementing two complementary strategies: the large?scale deployment of renewable energy, and a combination of comprehensive energy efficiency and smarter grids. This recommendation led to the launch of the 21st Century Power Partnership in April 2012, and its membership has since grown to include Denmark, Finland, Germany, India, Mexico, Spain, and the United States. NREL, together with its affiliated Joint Institute for Strategic Energy Analysis, are the operating agents.

  9. NREL Research on Converting Biomass to Liquid Fuels

    SciTech Connect (OSTI)

    None

    2010-01-01T23:59:59.000Z

    Unlike other renewable energy sources, biomass can be converted directly into liquid fuels, called "biofuels," to help meet transportation fuel needs. The two most common types of biofuels are ethanol and biodiesel. Today, ethanol is made from starches and sugars, but at the National Renewable Energy Laboratory (NREL) scientists are developing technology to allow it to be made from cellulose and hemicellulose, the fibrous material that makes up the bulk of most plant matter. Biodiesel is made by combining alcohol (usually methanol) with vegetable oil, animal fat, or recycled cooking grease. It can be used as an additive (typically 20%) to reduce vehicle emissions or in its pure form as a renewable alternative fuel for diesel engines. For a text version of this video visit http://www.nrel.gov/learning/re_biofuels.html

  10. NREL Next Generation Drivetrain: Mechanical Design and Test Plan (Poster)

    SciTech Connect (OSTI)

    Keller, J.; Halse, C.

    2014-05-01T23:59:59.000Z

    The Department of Energy and industry partners are sponsoring a $3m project for design and testing of a 'Next Generation' wind turbine drivetrain at the National Renewable Energy Laboratory (NREL). This poster focuses on innovative aspects of the gearbox design, completed as part of an end-to-end systems engineering approach incorporating innovations that increase drivetrain reliability, efficiency, torque density and minimize capital cost.

  11. NREL's Renewable Energy Development Expertise Reduces Project Risks (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-12-01T23:59:59.000Z

    This National Renewable Energy Laboratory (NREL) success story fact sheet highlights a June 2012 solar power purchase agreement between the Virgin Islands Water and Power Authority and three corporations. The fact sheet describes how technical assistance from DOE's National Renewable Energy Laboratory enabled the U.S. Virgin Islands to realistically assess its clean energy resources and identify the most viable and cost-effective solutions to its energy challenges--resulting in a $65 million investment in solar energy in the territory.

  12. Wind LCA Harmonization (Fact Sheet), NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Not Available

    2013-06-01T23:59:59.000Z

    NREL recently led the Life Cycle Assessment (LCA) Harmonization Project, a study that provides more exact estimates of GHG emissions for renewable and conventional generation, clarifying inconsistent and conflicting estimates in the published literature, and reducing uncertainty. This involved a systematic review and harmonization of life cycle assessment (LCA) literature of utility-scale wind power systems in order to determine the causes of life cycle greenhouse gases (GHG) emissions and, where possible, reduce variability in GHG estimates.

  13. NREL Spurred the Success of Multijunction Solar Cells (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01T23:59:59.000Z

    Many scientists once believed that high-quality gallium indium phosphide (GaInP) alloys could not be grown for use as semiconductors because the alloys would separate. However, researchers at the National Renewable Energy Laboratory (NREL) thought differently, and they employed GaInP in a material combination that allowed the multijunction cell to flourish. The multijunction cell is now the workhorse that powers satellites and the catalyst for renewed interest in concentrator photovoltaic products.

  14. Property:NrelPartnerType | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType Jump to: navigation, search Property Name

  15. Property:NrelPartnerYear | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType Jump to: navigation, search Property

  16. NREL's Renewable Energy Project Finance Website | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte3Information Exploration/DevelopmentLegalSolomonsNREL's

  17. NREL-Brazil Bilateral Technical Coordination | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte3Information Exploration/DevelopmentLegalSolomonsNREL'sBilateral

  18. NREL: State and Local Governments - Renewable Energy Rebates

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData and Resources NREL resource assessment

  19. NREL Pyrheliometer Comparison: September 16 to 27, 2013 (NPC-2013)

    SciTech Connect (OSTI)

    Reda, I.; Dooraghi, M.; Habte, A.

    2013-11-01T23:59:59.000Z

    Accurate measurements of direct normal (beam) solar irradiance from pyrheliometers are important for the development and deployment of solar energy conversion systems, improving our understanding of the Earth's energy budget for climate change studies, and for other science and technology applications involving solar flux. Providing these measurements places many demands on the quality system used by the operator of commercially available radiometers. Maintaining accurate radiometer calibrations traceable to an international standard is the first step in producing research-quality solar irradiance measurements. As with all measurement systems, absolute cavity radiometers and other types of pyrheliometers are subject to performance changes over time. NREL has developed and maintained a group of absolute cavity radiometers with direct calibration traceability to the World Radiometric Reference (WRR). These reference instruments are used by NREL to calibrate pyrheliometers and pyranometers using the ISO 17025 accredited Broadband Outdoor Radiometer Calibration (BORCAL) process (Reda et al. 2008). NPCs are held annually at the Solar Radiation Research Laboratory (SRRL) in Golden, Colorado. Open to all pyrheliometer owners/operators, e.g. NREL, NASA, NIST, NOAA, USA industry and academia, USA-DOE and other national laboratories, and national and international organizations. Each NPC provides an opportunity to determine the unique World Radiometric Reference (WRR) transfer factor (WRR-TF) for each participating pyrheliometer. By adjusting all subsequent pyrheliometer measurements by the appropriate WRR-TF, the solar irradiance data are traceable to the International System of Units through WRR.

  20. Overview of NREL's Photovoltaic Advanced R D Project

    SciTech Connect (OSTI)

    Surek, T.

    1992-01-01T23:59:59.000Z

    The National Renewable Energy Laboratory's (NREL's) Photovoltaic Advanced Research and Development (PV AR D) Project supports the US Department of Energy's National Photovoltaics Program in assisting the development and commercialization of photovoltaics (PV) energy technology. The NREL program is implemented through in-house research and subcontracts, with over 50% of the annual budget awarded through competitive solicitations to universities, large and small businesses, and other research centers. These activities include cost-shared, multiyear, government/industry partnerships and technology initiatives. The research has resulted in a better fundamental understanding of materials, devices, and processes, the achievement of record efficiencies in nearly all PV technology areas, the identification of promising new approaches to low-cost photovoltaics, and the introduction of new PV technology products into system experiments and PV markets. This paper presents an overview of NREL's PV AR D Project in terms of project organization and budgets, near- and long-term project objectives, research participants, and current and future research directions. Recent progress in the in-house and subcontracted research activities is described. 4 refs.

  1. Note: Cryogenic coaxial microwave filters

    SciTech Connect (OSTI)

    Tancredi, G.; Meeson, P. J. [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom)] [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); Schmidlin, S. [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom) [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); National Physical Laboratory, Hampton Road, Teddington TW11 0LW (United Kingdom)

    2014-02-15T23:59:59.000Z

    The careful filtering of microwave electromagnetic radiation is critical for controlling the electromagnetic environment for experiments in solid-state quantum information processing and quantum metrology at millikelvin temperatures. We describe the design and fabrication of a coaxial filter assembly and demonstrate that its performance is in excellent agreement with theoretical modelling. We further perform an indicative test of the operation of the filters by making current-voltage measurements of small, underdamped Josephson junctions at 15 mK.

  2. NREL Fights Corrosion to Cut Costs in CSP Plants (Fact Sheet), NREL Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | National Nuclearover two yearsNP UserReportTestingNREL

  3. Preliminary separation of galactic and cosmic microwave emission for the COBE Differential Microwave Radiometer

    SciTech Connect (OSTI)

    Bennet, C.L.; Smoot, G.F.; Hinshaw, G.; Wright, E.L.; Kogut, A.; De Amici, G.; Meyer, S.S.; Weiss, R.; Wilkinson, D.T.; Gulkis, S. (NASA, Goddard Space Flight Center, Greenbelt, MD (United States) Lawrence Berkeley Laboratory, CA (United States) California, University, Berkeley (United States) Universities Space Research Association, Boulder, CO (United States) California, University, Los Angeles (United States) MIT, Cambridge, MA (United States) Princeton University, NJ (United States) JPL, Pasadena, Ca (United States))

    1992-09-01T23:59:59.000Z

    Preliminary models of microwave emission from the Milky Way Galaxy based on COBE and other data are constructed for the purpose of distinguishing cosmic and Galactic signals. Differential Microwave Radiometer (DMR) maps, with the modeled Galactic emission removed, are fitted for a quadrupole distribution. Autocorrelation functions for individual Galactic components are presented. When Galactic emission is removed from the DMR data, the residual fluctuations are virtually unaffected, and therefore they are not dominated by any known Galactic emission component. 42 refs.

  4. NREL's Hydrogen-Powered Bus Serves as Showcase for Advanced Vehicle Technologies (AVT) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01T23:59:59.000Z

    Brochure describes the hydrogen-powered internal combustion engine (H2ICE) shuttle bus at NREL. The U.S. Department of Energy (DOE) is funding the lease of the bus from Ford to demonstrate market-ready advanced technology vehicles to visitors at NREL.

  5. NREL Develops Accelerated Sample Activation Process for Hydrogen Storage Materials (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-12-01T23:59:59.000Z

    This fact sheet describes NREL's accomplishments in developing a new sample activation process that reduces the time to prepare samples for measurement of hydrogen storage from several days to five minutes and provides more uniform samples. Work was performed by NREL's Chemical and Materials Science Center.

  6. NREL/ESS Spring 2013 Seminar Series "Core Values of Ecosystem Science and Sustainability"

    E-Print Network [OSTI]

    MacDonald, Lee

    NREL/ESS Spring 2013 Seminar Series "Core Values of Ecosystem Science and Sustainability" Facilitated by Dr. John Moore (CSU NREL/ESS) This spring's seminar series is being co Energy Economy Title: "Sustainability as a Core Value" Feb 15 Dr. Melinda Laituri, Professor, ESS Title

  7. innovati nNREL Melds Nature with Nanotech for Solar-Powered

    E-Print Network [OSTI]

    are nanoparticles of the same semiconductors used to make solar cells. Light hitting a quantum dot will freeinnovati nNREL Melds Nature with Nanotech for Solar-Powered Hydrogen Production NREL researchers an electron--in a solar cell, the electrons would be collected to produce an electrical current. But because

  8. NREL Recommends Ways to Cut Building Energy Costs in Half (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01T23:59:59.000Z

    Building designers and operators could cut energy use by 50% in large office buildings, hospitals, schools, and a variety of stores -- including groceries, general merchandise outlets, and retail outlets -- by following the recommendations of NREL researchers. The innovative energy-saving recommendations are contained in technical support documents and Advanced Energy Design Guides compiled by NREL.

  9. FY 2009 National Renewable Energy Laboratory (NREL) Annual Report: A Year of Energy Transformation

    SciTech Connect (OSTI)

    Not Available

    2010-01-01T23:59:59.000Z

    This FY2009 Annual Report surveys the National Renewable Energy Laboratory's (NREL) accomplishments in renewable energy and energy efficiency research and development, commercialization and deployment of technologies, and strategic energy analysis. It offers NREL's vision and progress in building a clean, sustainable research campus and reports on community involvement.

  10. innovati nNREL Helps Cool the Power Electronics in Electric Vehicles

    E-Print Network [OSTI]

    acceptance in the marketplace. That is why NREL researchers are working to develop thermal management), which are fast-switching solid-state electronics that must stay below 175°C (347°F) to function properly innovation. From scientific discovery to accelerating market deployment, NREL works in partnership

  11. NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared light, with

    E-Print Network [OSTI]

    NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared wavelengths in the near-infrared (NIR), which is important to a number of technologies. This discovery.neale@nrel.gov Reference: N.R. Neale, B.G. Lee, S.H. Kang, and A.J. Frank."Near-Infrared Light Trapping in Disordered

  12. innovati nNREL Produces Highly Efficient, Wide-Bandgap, Thin-Film Solar Cells

    E-Print Network [OSTI]

    . Low-bandgap cells can lose 25% of their power output and efficiency ratings as solar cell operating energy output than a low-bandgap cell with the same wattage or power rating. NREL is a nationalinnovati nNREL Produces Highly Efficient, Wide-Bandgap, Thin-Film Solar Cells Researchers

  13. innovati nNREL Recommends Ways to Cut Building Energy Costs in Half

    E-Print Network [OSTI]

    the basis for the 50% Advanced Energy Design Guide (AEDG) books. These user-friendly guides are the secondinnovati nNREL Recommends Ways to Cut Building Energy Costs in Half Building designers of capabilities, NREL leads an integrated approach across the spectrum of renewable energy innovation. From

  14. Variable frequency microwave heating apparatus

    DOE Patents [OSTI]

    Bible, Don W. (Clinton, TN); Lauf, Robert J. (Oak Ridge, TN); Johnson, Arvid C. (Lake in the Hills, IL); Thigpen, Larry T. (Angier, NC)

    1999-01-01T23:59:59.000Z

    A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity (34) for testing or other selected applications. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a high-power microwave oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

  15. Microwave processing of ceramics

    SciTech Connect (OSTI)

    Katz, J.D.

    1993-04-01T23:59:59.000Z

    Recent work in the areas of microwave processing and joining of ceramics is briefly reviewed. Advantages and disadvantages of microwave processing as well as some of the current issues in the field are discussed. Current state and potential for future commercialization of this technology is also addressed.

  16. Microwave processing of ceramics

    SciTech Connect (OSTI)

    Katz, J.D.

    1993-01-01T23:59:59.000Z

    Recent work in the areas of microwave processing and joining of ceramics is briefly reviewed. Advantages and disadvantages of microwave processing as well as some of the current issues in the field are discussed. Current state and potential for future commercialization of this technology is also addressed.

  17. DOE/ NREL Build One of the World's Most Energy Efficient Office Spaces

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    Technology ? from sophisticated computer modeling to advanced windows that actually open ? will help the newest building at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) be one of the world's most energy efficient offices. Scheduled to open this summer, the 222,000 square-foot RSF will house more than 800 staff and an energy efficient information technology data center. Because 19 percent of the country's energy is used by commercial buildings, DOE plans to make this facility a showcase for energy efficiency. DOE hopes the design of the RSF will be replicated by the building industry and help reduce the nation's energy consumption by changing the way commercial buildings are designed and built.

  18. NREL Documents Efficiency of Mini-Split Heat Pumps (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01T23:59:59.000Z

    A new report delivers mini-split heat pump (MSHP) performance data for use in whole-building simulation tools. Mini-split heat pumps (MSHPs) are highly efficient refrigerant-based air conditioning and heating systems that permit room-by-room conditioning and control in homes. Because of their size, efficiency, and price, MSHPs are very popular overseas and are gaining market share in energy-efficient home upgrades in the United States. They are a good option for retrofitting older homes that lack ductwork. To evaluate MSHP cost effectiveness and performance in U.S. homes, National Renewable Energy Laboratory (NREL) researchers are studying these systems in the laboratory, simulated buildings, and field test settings. A new NREL report describes an innovative laboratory approach to testing MSHPs and includes experimental performance maps for use in whole-building simulation tools. Most public information on MSHP performance is provided by equipment manufacturers, and is typically limited to performance at a single operating speed for heating and cooling. Mini-split heat pumps use variable speed components that spin up and down to continuously meet the heating or cooling need, significantly improving a system's operating efficiency. Measuring that efficiency in a laboratory is challenging and required new approaches to performance testing. NREL researchers worked with colleagues at Purdue University's Herrick Labs and Ecotope, Inc. to refine and apply this new approach to a suite of MSHP products. Researchers measured the performance of two MSHPs across a variety of operating conditions, which allowed, for the first time, development of accurate building simulation MSHP models. In the laboratory tests, researchers found that both MSHPs achieved manufacturer-reported performance at rating conditions. However, at other temperature and humidity conditions, the heat pumps capacity ranged from 40% above to 54% below the manufacturer-reported values. Knowing how performance varies is critical in order to reasonably estimate annual energy consumption of a MSHP, and to compare MSHPs to other heating and cooling options. Mini-split heat pump efficiency (COP) was seen to significantly exceed rated efficiency at low compressor speeds-a very important effect.

  19. NREL Provides Guidance to Improve Thermal Comfort in High-Performance Homes (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01T23:59:59.000Z

    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. Researchers at the National Renewable Energy Laboratory (NREL) have developed recommendations to help residential heating, cooling, and ventilation (HVAC) designers select optimal supply inlet size and system operating conditions to maintain good thermal comfort in low heating and cooling load homes. This can be achieved by using high sidewall supply air jets to create proper combinations of air temperature and air motion in the occupied zone of the conditioned space. The design of air distribution systems for low-load homes is an integral part of residential system research and development in systems integration. As American homes become more energy efficient, space conditioning systems will be downsized. The downsizing will reach the point where the air flow volumes required to meet the remaining heating and cooling loads may be too small to maintain uniform room air mixing, which can affect thermal comfort. NREL researchers performed a detailed study evaluating the performance of high sidewall supply air jets over a wide range of parameters including supply air temperature, supply air velocity, and supply inlet size. They found that in heating mode, low and intermediate supply temperatures of 95 F (308 K) and 105 F (314 K) maintained acceptable comfort levels at lower fan powers than can be achieved at 120 F (322 K) supply temperatures. For the high supply temperature of 120 F (322 K), higher fan powers (supply velocities) were required to overcome buoyancy effects and reach a good mixing in the room. In cooling mode, a supply temperature of 55 F (286 K) provided acceptable comfort levels. A small supply inlet of 8-in. (0.2 m) x 1-in. (0.025 m) is recommended in both heating and cooling modes. Computational fluid dynamics was used to model heat transfer and airflow in the room. The technique consists of using the model output to determine how well the supply air mixes with the room air. Thermal comfort is evaluated by determining the Air Diffusion Performance Index (ADPI). The level of comfort is evaluated by monitoring air temperature and air velocity in more than 600,000 control volumes that make up the occupied zone of a single room. The room has an acceptable comfort level when more than 70% of the control volumes meet the comfort criteria on both air temperature and air velocity. Figure 1 illustrates the plots of acceptable draft temperature, which is between -3 (-1.7) and 2 F (1.1 K) for two supply velocities of 394 fpm (2 m/s) (a) and 788 fpm (4 m/s) (b) when the room was supplied by 55 F (286 K) air. The plots show the distribution at selected cross-sections along the room. Colored regions on each cross-section are considered comfortable (blue regions are on the cold side and red regions are on the warm side). Regions of acceptable draft temperature are larger at low velocity and decrease as the velocity increases. As a result, the supply velocity of 394 fpm (2 m/s) provided higher comfort level than the supply velocity of 788 fpm (4 m/s). Work is in progress at NREL to extend this research to evaluate additional configurations and to integrate this system into a whole-house context.

  20. Microwave coupler and method

    DOE Patents [OSTI]

    Holcombe, C.E.

    1984-11-29T23:59:59.000Z

    The present invention is directed to a microwave coupler for enhancing the heating or metallurgical treatment of materials within a cold-wall, rapidly heated cavity as provided by a microwave furnace. The coupling material of the present invention is an alpha-rhombohedral-boron-derivative-structure material such as boron carbide or boron silicide which can be appropriately positioned as a susceptor within the furnace to heat other material or be in powder particulate form so that composites and structures of boron carbide such as cutting tools, grinding wheels and the like can be rapidly and efficiently formed within microwave furnaces.

  1. NREL: Biomass Research - Jonathan J. Stickel

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

    the leader (Principal Investigator) for the Mechanistic Process Modeling task of the Biomass Program. This work involves fundamental and applied research of the fluid mechanics,...

  2. NREL: Biomass Research - Michelle L. Reed

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

    Analysis Technologies (BAT) team. She provides compositional analysis data on biomass feedstocks and process intermediates for use in pretreatment models and techno-economic...

  3. NREL: Biomass Research - Philip T. Pienkos

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

    Separations development and application Computational modeling and prediction Biogas to fuels Photo of Phil Pienkos, National Renewable Energy Laboratory, Ron Pate, Sandia...

  4. Robot-Powered Reliability Testing at NREL's ESIF

    ScienceCinema (OSTI)

    Harrison; Kevin

    2014-06-10T23:59:59.000Z

    With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested-and currently costly-component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle-all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

  5. Golden Reading Room: NREL Environmental and NEPA Documents | Department of

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel Cell VehicleEnergy (5Temperatures |OurGoing forEnergy NREL

  6. NREL: Wind-Wildlife Impacts Literature Database (WILD) Home Page

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz,AerialStaff Here you willWindNREL -

  7. NREL: Workforce Development and Education Programs - About Workforce

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz,AerialStaff Here you willWindNREL

  8. NREL Job Task Analysis: Energy Auditor | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalanced Scorecard Federal2 to:DieselEnergy Auditor NREL Job Task Analysis: Energy

  9. NREL Job Task Analysis: Quality Control Inspector | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalanced Scorecard Federal2 to:DieselEnergy Auditor NREL Job Task Analysis:

  10. NREL Job Task Analysis: Retrofit Installer Technician (Revised) |

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalanced Scorecard Federal2 to:DieselEnergy Auditor NREL Job Task

  11. Brazil-NREL Biofuels and EERE Cooperation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo FengBoulder, CO) JumpNREL Biofuels and EERE Cooperation

  12. Lessons Learned: NREL Village Power Program | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories on climateJuno Beach,October, 2012Lee CountyLearned: NREL Village

  13. Educational Opportunities in Bioenergy - NREL | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.Program - LibbyofThisStatement Tuesday, SeptemberofEbonyDataNREL presentation

  14. NREL Research Wind Farm I | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico: EnergyMithun JumpMuscoy, California:New York) Name:NREL Research

  15. NREL Research Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico: EnergyMithun JumpMuscoy, California:New York) Name:NREL

  16. South Africa-NREL Energy Activities | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g GrantAtlas (PACA Region -Sonelgaz Jump to:SopogySouth Africa-NREL

  17. NREL gets $20M from DOE for solar

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Regionat Cornell Batteries & FuelTechnologies |TOfficials toNREL gets

  18. NREL Request for Proposals RHB-5-52467

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL More thanof8

  19. NREL's Research Support Facility: An Operations Update - December 2011

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL4Department

  20. NREL: Awards and Honors - Real-Time Biomass Analysis

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hitsAwards and Honors NewsNREL

  1. NREL: Continuum Magazine - Net-Zero Building Technologies Create

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of WomenEvents BelowAbout ShareCloser Look: NREL

  2. NREL: News Feature - Reviving Algae from the (Almost) Dead

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch StaffSustainability NREL'sReviving Algae

  3. NREL: News Feature - Small Improvements to Make Big Difference

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and AchievementsResearch StaffSustainability NREL'sReviving

  4. Category:NREL Map Files | Open Energy Information

    Open Energy Info (EERE)

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  5. Microsoft Word - Comments_NREL_20110202 bpa Mar 4.doc

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

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  6. NREL: Resource Assessment and Forecasting - Data and Resources

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  7. NREL: Solar Research - Materials and Chemical Science and Technology

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  8. NREL: State and Local Governments - Feed-In Tariffs

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  9. NREL: State and Local Governments - Quick Response Solar Technical

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  10. NREL: State and Local Governments - Renewable Fuel Standards

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  11. NREL: State and Local Governments - Renewable Portfolio Standards

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

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  12. NREL: State and Local Governments - Solar 101 STAT Webinars

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  13. NREL: State and Local Governments - Solar Hot Topics STAT Webinars

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

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  14. NREL: State and Local Governments - Solar Requests for Proposals

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

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  15. NREL: State and Local Governments - Solar Technical Assistance Team

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

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  16. NREL: State and Local Governments - Value-of-Solar Tariffs

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

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  17. NREL: Technology Deployment - Biopower and Waste-to-Energy Solutions

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  18. NREL: Technology Deployment - Field Demonstrations of Energy Efficient

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  19. NREL: Transmission Grid Integration - Hawaii Solar Integration Study

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  20. NREL: Transmission Grid Integration - Issues Affecting Renewable Energy

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

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  1. NREL: Transmission Grid Integration - Oahu Wind Integration and

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

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  2. NREL: Workforce Development and Education Programs - New Video Shows How

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  3. NREL: Workforce Development and Education Programs - News Release Archives

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

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  4. NREL: Workforce Development and Education Programs - News Release Archives

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

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  5. NREL: Workforce Development and Education Programs - News Release Archives

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

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  6. NREL: Workforce Development and Education Programs - News Release Archives

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

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  7. NREL: Workforce Development and Education Programs - News Release Archives

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

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  8. Robot-Powered Reliability Testing at NREL's ESIF

    SciTech Connect (OSTI)

    Harrison; Kevin

    2013-12-05T23:59:59.000Z

    With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested-and currently costly-component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle-all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

  9. Emitron: microwave diode

    DOE Patents [OSTI]

    Craig, G.D.; Pettibone, J.S.; Drobot, A.T.

    1982-05-06T23:59:59.000Z

    The invention comprises a new class of device, driven by electron or other charged particle flow, for producing coherent microwaves by utilizing the interaction of electromagnetic waves with electron flow in diodes not requiring an external magnetic field. Anode and cathode surfaces are electrically charged with respect to one another by electron flow, for example caused by a Marx bank voltage source or by other charged particle flow, for example by a high energy charged particle beam. This produces an electric field which stimulates an emitted electron beam to flow in the anode-cathode region. The emitted electrons are accelerated by the electric field and coherent microwaves are produced by the three dimensional spatial and temporal interaction of the accelerated electrons with geometrically allowed microwave modes which results in the bunching of the electrons and the pumping of at least one dominant microwave mode.

  10. High power microwave generator

    DOE Patents [OSTI]

    Ekdahl, C.A.

    1983-12-29T23:59:59.000Z

    A microwave generator efficiently converts the energy of an intense relativistic electron beam (REB) into a high-power microwave emission using the Smith-Purcell effect which is related to Cerenkov radiation. Feedback for efficient beam bunching and high gain is obtained by placing a cylindrical Smith-Purcell transmission grating on the axis of a toroidal resonator. High efficiency results from the use of a thin cold annular highly-magnetized REB that is closely coupled to the resonant structure.

  11. NREL Works to Increase Electric Vehicle Efficiency Through Enhanced Thermal Management (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-06-01T23:59:59.000Z

    Researchers at NREL are providing new insight into how heating and cooling systems affect the distance that electric vehicles can travel on a single charge. Electric vehicle range can be reduced by as much as 68% per charge because of climate-control demands. NREL engineers are investigating opportunities to change this dynamic and increase driving range by improving vehicle thermal management. NREL experts are collaborating with automotive industry partners to investigate promising thermal management technologies and strategies, including zone-based cabin temperature controls, advanced heating and air conditioning controls, seat-based climate controls, vehicle thermal preconditioning, and thermal load reduction technologies.

  12. Evaluation of solar radiation measurement systems: EPRI/NREL final test report. Volume 1

    SciTech Connect (OSTI)

    Stoffel, T.; Riordan, C.; Bigger, J.

    1992-11-01T23:59:59.000Z

    Measured solar radiation resource data are needed by electric utilities to evaluate the potential of renewable energy options like photovoltaics in their service territory. In this final test report, we document a cooperative project of the Electric Power Research Institute (EPRI) and the National Renewable Energy Laboratory (NREL) to compare available measurement system options for performing solar radiation resource assessments. We present the detailed results of a 6-month field comparison of thermopile-based pyranometer and pyrheliometer solar irradiance measurement systems with two different implementations of the rotating shadowband radiometer (RSR) concept installed at NREL`s Solar Radiation Research Laboratory (SRRL) in Golden, Colorado.

  13. Technology Assessment: NREL Provides Know-How for Highly Energy-Efficient Data Centers (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-05-01T23:59:59.000Z

    NREL leads the effort to change how energy is used worldwide by helping identify and eliminate barriers to energy efficiency and clean energy technology deployment. The laboratory takes a portfolio approach that explores the full range of technology options for developing and implementing innovative energy performance solutions. The Research Support Facility (RSF) data center is a prime example of NREL's capabilities and expertise in energy efficiency. But, more important, its features can be replicated. NREL provides custom technical assistance and training for improved data center performance to help our customers realize cost savings.

  14. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Modelling Concentrating Solar Power

    E-Print Network [OSTI]

    and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Modelling Concentrating Solar Power with Thermal Energy Storage for Integration Studies Marissa Hummon 3rd International Solar Power Integration on the hourly and daily supply of solar energy. To optimize the use of this limited energy, CSP-TES must

  15. NREL Breaks New Ground in Plant Pretreatment for Biofuels (Fact Sheet), Highlights in Science, NREL (National Renewable Energy Laboratory)

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  16. Lab Tests Demonstrate Effectiveness of Advanced Power Strips (Fact Sheet), NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)

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  17. NREL Studies Wind Farm Aerodynamics to Improve Siting (Fact Sheet), Innovation Impact: Wind, NREL (National Renewable Energy Laboratory)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species.4 Leads NREL More

  18. NREL Pyrheliometer Comparisons: September 22-26, 2014 (NPC-2014)

    SciTech Connect (OSTI)

    Reda, I.; Dooraghi, M.; Habte, A.

    2014-10-01T23:59:59.000Z

    Accurate measurements of direct normal (beam) solar irradiance from pyrheliometers are important for developing and deploying solar energy conversion systems, improving our understanding of the Earth's energy budget for climate change studies, and for other science and technology applications involving solar flux. Providing these measurements places many demands on the quality system used by the operator of commercially available radiometers. Maintaining accurate radiometer calibrations that are traceable to an international standard is the first step in producing research-quality solar irradiance measurements. As with all measurement systems, absolute cavity radiometers and other types of pyrheliometers are subject to performance changes over time. NREL has developed and maintained a select group of absolute cavity radiometers with direct calibration traceability to the World Radiometric Reference (WRR), and uses these reference instruments to calibrate pyrheliometers and pyranometers using the ISO 17025 accredited Broadband Outdoor Radiometer Calibration (BORCAL) process. National Renewable Energy Laboratory (NREL) pyrheliometer comparisons (NPCs) are held annually at the Solar Radiation Research Laboratory (SRRL) in Golden, Colorado. Open to all pyrheliometer owners and operators, each NPC provides an opportunity to determine the unique WRR transfer factor (WRR-TF) for each participating pyrheliometer. By adjusting all subsequent pyrheliometer measurements by the appropriate WRR-TF, the solar irradiance data are traceable to the WRR. NPC-2014 was held September 22-26, 2014. Participants operated 36 absolute cavity radiometers and 22 conventional thermopile-based pyrheliometers to simultaneously measure clear-sky direct normal solar irradiance during this period, and this report documents the findings.

  19. Case Studies Comparing System Advisor Model (SAM) Results to Real Performance Data: Preprint

    SciTech Connect (OSTI)

    Blair, N.; Dobos, A.; Sather, N.

    2012-06-01T23:59:59.000Z

    NREL has completed a series of detailed case studies comparing the simulations of the System Advisor Model (SAM) and measured performance data or published performance expectations. These case studies compare PV measured performance data with simulated performance data using appropriate weather data. The measured data sets were primarily taken from NREL onsite PV systems and weather monitoring stations.

  20. NREL Patents a Catalyst that Removes Syngas Tar, Boosting the Economics of Biofuels (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01T23:59:59.000Z

    NREL has patented a catalyst that reforms tar into syngas, a breakthrough that can accelerate the process of getting biomass ready for fuel synthesis and use as a drop-in fuel.

  1. NREL Policy Stacking Theory Correlates Key Indicators with Solar Market Success (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01T23:59:59.000Z

    NREL's Integrated Applications Group evaluated the time-dependent relationships between policy implementation and the success of solar markets using historical data for installed capacity of solar photovoltaic energy systems. This Science and Technology Highlights fact sheet summarizes their research.

  2. NREL Enhances the Performance of a Lithium-Ion Battery Cathode (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01T23:59:59.000Z

    Scientists from NREL and the University of Toledo have combined theoretical and experimental studies to demonstrate a promising approach to significantly enhance the performance of lithium iron phosphate (LiFePO4) cathodes for lithium-ion batteries.

  3. NREL Pyrheliometer Comparisons (NPC-2003), September 22 - October 3, 2003, Golden, Colorado

    SciTech Connect (OSTI)

    Stoffel, T.; Reda, I.; Wilcox, S.

    2004-07-01T23:59:59.000Z

    NREL Pyrheliometer Comparisons (NPCs) are held annually at the Solar Radiation Research Laboratory (SRRL) in Golden, Colorado. Open to all pyrheliometer owner/operators, the NPC provides an opportunity to determine the unique WRR transfer factor for each participating pyrheliometer.

  4. Results of NREL Pyrheliometer Comparisons (NPC1999), October 4-10, 1999, Golden, Colorado

    SciTech Connect (OSTI)

    Reda, I.; Stoffel, T.; Wilcox, S.

    2000-09-01T23:59:59.000Z

    NREL Pyrheliometer Comparisons (NPCs) are held annually at the Solar Radiation Research Laboratory (SRRL) in Golden, Colorado. Open to all pyrheliometer owner/operators, the NPC provides an opportunity to determine the unique WRR transfer factor for each participating pyrheliometer.

  5. Is the hourly data I get from NREL's PV Watts program adjusted...

    Open Energy Info (EERE)

    get from NREL's PV Watts program adjusted for daylight savings time. Home I take the hourly AC output numbers and apply them to a program I built that assigns a dollar value to the...

  6. NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes.

    E-Print Network [OSTI]

    NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems

  7. Summary of NREL's Recent Class 8 Tractor Trailer Platooning Testing (Presentation)

    SciTech Connect (OSTI)

    Lammert, M.; Kelly, K.; Walkowicz, K.

    2014-08-01T23:59:59.000Z

    This presentation summarizes NREL's recent class 8 tractor trailer platooning testing, including analysis of SAE J1321 Type II fuel consumption testing, fuel consumption improvement, fuel economy and platooning position accuracy.

  8. NREL - FY09 Lab Call: Supporting Research and Testing for MHK...

    Energy Savers [EERE]

    - FY09 Lab Call: Supporting Research and Testing for MHK Presentation from the 2011 Water Program Peer Review NREL - FY09 Lab Call: Supporting Research and Testing for MHK...

  9. NREL and DoD - Complementary Missions, Shared Goals: Comprehensive Energy Solutions (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-12-01T23:59:59.000Z

    By collaborating with the country's only national laboratory solely dedicated to advanced renewable energy, energy efficiency, and energy systems integration, DoD can leverage NREL's facilities and expertise to accelerate achievement of energy goals.

  10. NREL Small Wind Turbine Test Project: Mariah Power's Windspire Wind Turbine Test Chronology

    SciTech Connect (OSTI)

    Huskey, A.; Forsyth, T.

    2009-06-01T23:59:59.000Z

    This report presents a chronology of tests conducted at NREL's National Wind Technology Center on Mariah Power's Windspire 1.2-kW wind turbine and a letter of response from Mariah Power.

  11. NREL Technical Reports Guide the Way to 50% Energy Savings in Hospitals, Office Buildings (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01T23:59:59.000Z

    Researchers at the National Renewable Energy Laboratory (NREL) have developed two technical reports that provide recommendations to help designers and operators of large office buildings and hospitals achieve at least a 50% energy savings using existing technology.

  12. NREL Team Creates High-Activity, Durable Platinum Extended Surface Catalyst for Fuel Cells (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01T23:59:59.000Z

    Researchers with NREL's Fuel Cell team showed that platinum can replace copper nanowires in such a way that high-surface-area and high-specific-activity catalysts are produced, potentially allowing for lower-cost catalysts.

  13. Beacon Power Corporation NREL Industry Growth Forum

    E-Print Network [OSTI]

    with General Electric · Awarded "Engineer of the Year" @ GE · B.S. and M.S. degrees in M.E. from MIT · 65;7 From Flywheel to 20 MW Plant 7 #12;88 Base Business Model · Build, own/co-own and operate merchant (outright or co-investment) · Sell regulation systems outside the U.S. with strategic partners · Sell other

  14. Microwave and Radio Frequency Workshop

    Broader source: Energy.gov [DOE]

    At the Microwave and Radio Frequency Workshop (held in Long Beach, CA, on July 25, 2012), academic and industry experts discussed the existing and emerging electrotechnologies – such as microwave ...

  15. NREL Tests Integrated Heat Pump Water Heater Performance in Different Climates (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01T23:59:59.000Z

    This technical highlight describes NREL tests to capture information about heat pump performance across a wide range of ambient conditions for five heat pump water heaters (HPWH). These water heaters have the potential to significantly reduce water heater energy use relative to traditional electric resistance water heaters. These tests have provided detailed performance data for these appliances, which have been used to evaluate the cost of saved energy as a function of climate. The performance of HPWHs is dependent on ambient air temperature and humidity and the logic controlling the heat pump and the backup resistance heaters. The laboratory tests were designed to measure each unit's performance across a range of air conditions and determine the specific logic controlling the two heat sources, which has a large effect on the comfort of the users and the energy efficiency of the system. Unlike other types of water heaters, HPWHs are both influenced by and have an effect on their surroundings. Since these effects are complex and different for virtually every house and climate region, creating an accurate HPWH model from the data gathered during the laboratory tests was a main goal of the project. Using the results from NREL's laboratory tests, such as the Coefficient of Performance (COP) curves for different air conditions as shown in Figure 1, an existing HPWH model is being modified to produce more accurate whole-house simulations. This will allow the interactions between the HPWH and the home's heating and cooling system to be evaluated in detail, for any climate region. Once these modeling capabilities are in place, a realistic cost-benefit analysis can be performed for a HPWH installation anywhere in the country. An accurate HPWH model will help to quantify the savings associated with installing a HPWH in the place of a standard electric water heater. In most locations, HPWHs are not yet a cost-effective alternative to natural gas water heaters. The detailed system performance maps that were developed by this testing program will be used to: (1) Target regions of the country that would benefit most from this technology; (2) Identify improvements in current systems to maximize homeowner cost savings; and (3) Explore opportunities for development of advanced hot water heating systems.

  16. NREL Develops New Controls that Proactively Adapt to the Wind (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-11-01T23:59:59.000Z

    Until now, wind turbine controls that reduce the impacts of wind gusts and turbulence were always reactive-responding to the wind rather than anticipating it. But with today's laser-based sensors that measure wind speed ahead of the turbine, researchers at the National Renewable Energy Laboratory (NREL) and their industry partners are developing more intelligent controls. The world's first field tests of these controls are currently underway at the National Wind Technology Center (NWTC) at NREL, with plans for future commercialization.

  17. NREL Develops New Controls that Proactively Adapt to the Wind (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01T23:59:59.000Z

    Until now, wind turbine controls that reduce the impacts of wind gusts and turbulence were always reactive -- responding to the wind rather than anticipating it. But with today's laser-based sensors that measure wind speed ahead of the turbine, researchers at the National Renewable Energy Laboratory (NREL) and their industry partners are developing more intelligent controls. The world's first field tests of these controls are currently underway at the National Wind Technology Center (NWTC) at NREL, with plans for future commercialization.

  18. Standard Hydrogen Test Protocols for the NREL Sensor Testing Laboratory (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-12-01T23:59:59.000Z

    This brochure summarizes the test protocols used in the NREL Hydrogen Sensor Test Laboratory for the quantitative assessment of critical analytical performance specifications for hydrogen sensors. Researchers at the NREL Hydrogen Safety Sensor Test Laboratory developed a variety of test protocols to quantitatively assess critical analytical performance specifications for hydrogen sensors. Many are similar to, but typically more rigorous than, the test procedures mandated by ISO Standard 26142 (Hydrogen Detector for Stationary Applications). Specific protocols were developed for linear range, short-term stability, and the impact of fluctuations in temperature (T), pressure (P), relative humidity (RH), and chemical environment. Specialized tests (e.g., oxygen requirement) may also be performed. Hydrogen safety sensors selected for evaluation are subjected to a thorough regimen of test protocols, as described. Sensor testing is performed at NREL on custom-built sensor test fixtures. Environmental parameters such as T, P, RH, and gas composition are rigorously controlled and monitored. The NREL evaluations are performed on commercial hydrogen detectors, on emerging sensing technologies, and for end users to validate sensor performance for specific application needs. Test results and data are shared with the manufacturer or client via summary reports, teleconference phone calls, and, when appropriate, site visits to manufacturer facilities. Client representatives may also monitor NREL's operation while their technologies are being tested. Manufacturers may use test data to illustrate the analytical capability of their technologies and, more importantly, to guide future developments. NREL uses the data to assess technology gaps and deployment considerations. Per NREL Sensor Testing Laboratory policy, test results are treated as proprietary and are not shared with other manufacturers or other entities without permission. The data may be used by NREL in open publications (journal articles, presentations, outreach support, and other reports), but will not be attributed to a specific vendor.

  19. NREL Innovations Contribute to an Award-Winning Small Wind Turbine (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-12-01T23:59:59.000Z

    The Skystream 3.7 wind turbine is the result of a decade-long collaboration between the National Renewable Energy Laboratory (NREL) and Southwest Windpower, a commercially successful small wind turbine manufacturer. NREL drew heavily on its research experience to incorporate innovations into the Skystream 3.7, including a unique blade design that makes the wind turbine more efficient and quieter than most.

  20. NREL Helps Cool the Power Electronics in Electric Vehicles (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01T23:59:59.000Z

    Researchers at the National Renewable Energy Laboratory (NREL) are developing and demonstrating innovative heat-transfer technologies for cooling power electronics devices in hybrid and electric vehicles. In collaboration with 3M and Wolverine Tube, Inc., NREL is using surface enhancements to dissipate heat more effectively, permitting a reduction in the size of power electronic systems and potentially reducing the overall costs of electric vehicles.