National Library of Energy BETA

Sample records for wind direction air

  1. Direct drive wind turbine

    DOEpatents

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-07-11

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  2. Direct drive wind turbine

    DOEpatents

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2006-10-10

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  3. Direct drive wind turbine

    DOEpatents

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2007-02-27

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  4. Direct drive wind turbine

    DOEpatents

    Bywaters, Garrett Lee; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-09-19

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  5. ELECTRONIC BIVANE WIND DIRECTION INDICATOR

    DOEpatents

    Moses, H.

    1961-05-01

    An apparatus is described for determining and recording three dimensional wind vectors. The apparatus comprises a rotatably mounted azimuthal wind component sensing head and an elevational wind component sensing head mounted to the azimuthal head and adapted to rotate therewith in the azimuthal plane and independently in the elevational plane. A heat source and thermocouples disposed thereabout are mounted within each of the sensing heads, the thermocouples providing electrical signals responsive to the temperature differential created by the passage of air through the sensing tuhes. The thermocouple signals are applied to drive mechanisms which position the sensing heads to a null wind position. Recording means are provided responsive to positional data from the drive mechanisms which are a measurement of the three dimensional wind vectors.

  6. BNL Direct Wind Superconducting Magnets

    SciTech Connect

    Parker, B.; Anerella, M.; Escallier, J.; Ghosh, A.; Jain, A.; Marone, A.; Muratore, A.; Wanderer, P.

    2011-09-12

    BNL developed Direct Wind magnet technology is used to create a variety of complex multi-functional multi-layer superconducting coil structures without the need for creating custom production tooling and fixturing for each new project. Our Direct Wind process naturally integrates prestress into the coil structure so external coil collars and yokes are not needed; the final coil package transverse size can then be very compact. Direct Wind magnets are produced with very good field quality via corrections applied during the course of coil winding. The HERA-II and BEPC-II Interaction Region (IR) magnet, J-PARC corrector and Alpha antihydrogen magnetic trap magnets and our BTeV corrector magnet design are discussed here along with a full length ILC IR prototype magnet presently in production and the coils that were wound for an ATF2 upgrade at KEK. A new IR septum magnet design concept for a 6.2 T combined-function IR magnet for eRHIC, a future RHIC upgrade, is introduced here.

  7. Microsoft Word - wind direction vane1.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Understanding Wind Direction And Making A Wind Vane Grade Levels: Kindergarten, 1, 2, and 3 Objectives: The students will learn how to construct a wind vane and understand the ...

  8. Wind Direct Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name: Wind Direct Ltd Place: Solihull, United Kingdom Zip: B91 2PQ Sector: Wind energy Product: Develops small wind farms (1-5MW) particularly for industrial...

  9. Passively cooled direct drive wind turbine

    DOEpatents

    Costin, Daniel P.

    2008-03-18

    A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air over the fin. The fin is further tapered to allow a constant portion of the fin to extend beyond the air stream boundary layer. Turbulence initiators on the nose cone further enhance heat transfer at the fins.

  10. Air breathing direct methanol fuel cell

    DOEpatents

    Ren, Xiaoming

    2002-01-01

    An air breathing direct methanol fuel cell is provided with a membrane electrode assembly, a conductive anode assembly that is permeable to air and directly open to atmospheric air, and a conductive cathode assembly that is permeable to methanol and directly contacting a liquid methanol source.

  11. Air breathing direct methanol fuel cell

    DOEpatents

    Ren, Xiaoming; Gottesfeld, Shimshon

    2002-01-01

    An air breathing direct methanol fuel cell is provided with a membrane electrode assembly, a conductive anode assembly that is permeable to air and directly open to atmospheric air, and a conductive cathode assembly that is permeable to methanol and directly contacting a liquid methanol source. Water loss from the cell is minimized by making the conductive cathode assembly hydrophobic and the conductive anode assembly hydrophilic.

  12. F.E. Warren Air Force Base Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    F.E. Warren Air Force Base Wind Farm Jump to: navigation, search Name F.E. Warren Air Force Base Wind Farm Facility F.E. Warren Air Force Base Sector Wind energy Facility Type...

  13. AUTOMATIC AIR BURST DIRECTION FINDER

    DOEpatents

    Allard, G.A.

    1952-01-31

    This patent application describes an atomic explosion direction indicator comprising a geometric heat-scorchable indicating surface symmetrical about an axis, elevation and azimuth markings on the heat scorchable surface, and an indicating rod at the axis of said surface arranged to cast a shadow hereon, whereby heat from an atomic explosion will scorch a pattern on said surface indicative of the azimuth and elevation of said explosion.

  14. 10MW Class Direct Drive HTS Wind Turbine: Cooperative Research...

    Office of Scientific and Technical Information (OSTI)

    SEMICONDUCTOR; 20MW CLASS DIRECT DRIVE HTS WIND TURBINE; Commercialization and Technology Transfer Word Cloud More Like This Full Text preview image File size NAView Full Text ...

  15. Wind turbine having a direct-drive drivetrain

    DOEpatents

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2011-02-22

    A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  16. Wind Energy and Air Emission Reduction Benefits: A Primer

    SciTech Connect

    Jacobson, D.; High, C.

    2008-02-01

    This document provides a summary of the impact of wind energy development on various air pollutants for a general audience. The core document addresses the key facts relating to the analysis of emission reductions from wind energy development. It is intended for use by a wide variety of parties with an interest in this issue, ranging from state environmental officials to renewable energy stakeholders. The appendices provide basic background information for the general reader, as well as detailed information for those seeking a more in-depth discussion of various topics.

  17. Wind turbine having a direct-drive drivetrain

    DOEpatents

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2008-10-07

    A wind turbine (100) comprising an electrical generator (108) that includes a rotor assembly (112). A wind rotor (104) that includes a wind rotor hub (124) is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle (160) via a bearing assembly (180). The wind rotor hub includes an opening (244) having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity (380) inside the wind rotor hub. The spindle is attached to a turret (140) supported by a tower (136). Each of the spindle, turret and tower has an interior cavity (172, 176, 368) that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system (276) for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  18. Testing of a direct drive generator for wind turbines

    SciTech Connect

    Sondergaard, L.M.

    1996-12-31

    The normal drive train of a wind turbine consists a gearbox and a 4 to 8 poles asynchronous generator. The gearbox is an expensive and unreliable components and this paper deals with testing of a direct drive synchronous generator for a gearless wind turbine. The Danish company Belt Electric has constructed and manufactured a 27 kW prototype radial flux PM-generator (DD600). They have used cheap hard ferrite magnets in the rotor of this PM-generator. This generator has been tested at Riso and the test results are investigated and analyzed in this paper. The tests have been done with three different load types (1: resistance; 2: diode rectifier, DC-capacitor, resistance; 3: AC-capacitor, diode rectifier, DC-capacitor, resistance). 1 ref., 9 figs., 5 tabs.

  19. Air Breathing Direct Methanol Fuel Cell

    DOEpatents

    Ren; Xiaoming

    2003-07-22

    A method for activating a membrane electrode assembly for a direct methanol fuel cell is disclosed. The method comprises operating the fuel cell with humidified hydrogen as the fuel followed by running the fuel cell with methanol as the fuel.

  20. Geothermal Direct-Use — Meeting Clean Air Standards

    Energy.gov [DOE]

    Geothermal direct-use applications—such as greenhouses, district and space heating, and aquaculture—can easily meet local and federal clean air standards, which help protect our environment.

  1. Compressed air energy storage system reservoir size for a wind energy baseload power plant

    SciTech Connect

    Cavallo, A.J.

    1996-12-31

    Wind generated electricity can be transformed from an intermittent to a baseload resource using an oversized wind farm in conjunction with a compressed air energy storage (CAES) system. The size of the storage reservoir for the CAES system (solution mined salt cavern or porous media) as a function of the wind speed autocorrelation time (C) has been examined using a Monte Carlo simulation for a wind class 4 (wind power density 450 W m{sup -2} at 50 m hub height) wind regime with a Weibull k factor of 2.5. For values of C typically found for winds over the US Great Plains, the storage reservoir must have a 60 to 80 hour capacity. Since underground reservoirs account for only a small fraction of total system cost, this larger storage reservoir has a negligible effect on the cost of energy from the wind energy baseload system. 7 refs., 2 figs., 1 tab.

  2. Method and apparatus for wind turbine air gap control

    DOEpatents

    Grant, James Jonathan; Bagepalli, Bharat Sampathkumaran; Jansen, Patrick Lee; DiMascio, Paul Stephen; Gadre, Aniruddha Dattatraya; Qu, Ronghai

    2007-02-20

    Methods and apparatus for assembling a wind turbine generator are provided. The wind turbine generator includes a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis, a rotor rotatable about the generator longitudinal axis wherein the rotor includes a plurality of magnetic elements coupled to a radially outer periphery of the rotor such that an airgap is defined between the stator windings and the magnetic elements and the plurality of magnetic elements including a radially inner periphery having a first diameter. The wind turbine generator also includes a bearing including a first member in rotatable engagement with a radially inner second member, the first member including a radially outer periphery, a diameter of the radially outer periphery of the first member being substantially equal to the first diameter, the rotor coupled to the stator through the bearing such that a substantially uniform airgap is maintained.

  3. Direct analysis of air filter samples for alpha emitting isotopes

    SciTech Connect

    Mohagheghi, A.H.; Ghanbari, F.; Ebara, S.B.; Enghauser, M.E. [Sandia National Labs., Albuquerque, NM (United States); Bakhtiar, S.N. [Westinghouse WIPP, Carlsbad, NM (United States)

    1997-04-01

    The traditional method for determination of alpha emitting isotopes on air filters has been to process the samples by radiochemical methods. However, this method is too slow for cases of incidents involving radioactive materials where the determination of personnel received dose is urgent. A method is developed to directly analyze the air filters taken from personal and area air monitors. The site knowledge is used in combination with alpha spectral information to identify isotopes. A mathematical function is developed to estimate the activity for each isotope. The strengths and weaknesses of the method are discussed.

  4. NREL: Wind Research - NREL's WIND Toolkit Provides the Data Needed...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    by the numerical model. Barometric pressure, wind speed and direction (at 100 m above ground level), relative humidity, temperature, and air density data are available via an...

  5. Review of Wind Turbine Wake Models and Future Directions (Presentation)

    SciTech Connect

    Churchfield, M. J.

    2013-08-01

    This presentation gives a brief overview to wind turbine wake modeling, ranging from models used in the 1980s up to the present. The presentation shows the strengths and weaknesses of various models and discusses the needs of the wind energy industry and research sectors. Both power production and loads analysis are discussed.

  6. Anemometer Data (Wind Speed, Direction) for Pascua Yaqui, AZ...

    OpenEI (Open Energy Information) [EERE & EIA]

    from a height of 20 m. The data was originally made available by Wind Powering America, a DOE Office of Energy Efficiency & Renewable Energy (EERE) program. Data and Resources...

  7. MHK ISDB/Sensors/Wind Direction 3590 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Velocity Planar Measurement (Current), 3D Velocity Volumetric Measurement (Current), Density (Ice), Direction (Ice), Speed (Ice), Thickness (Ice), Pressure (Tidal), Sea Surface...

  8. A new approach for the determinination of horizontal wind direction fluctuations

    SciTech Connect

    Ibarra, J.I.

    1995-09-01

    A new method to determine horizontal wind direction fluctuations {sigma}{sub {theta}} is presented based on the hypothesis of a Gaussian distribution of wind direction that gradually moves to a circular, uniform distribution under near-calm conditions. A theoretical formulation for {sigma}{sub {theta}}, the persistence of wind and the total horizontal standard deviation {sigma} is provided and supported by experimental observations, both in a complex terrain valley site and in an open grassland spot in Spain. Comparisons of the proposed model with observations yielded a fairly good agreement, making the theoretical functions a straightforward procedure for use in atmospheric dispersion calculations. The method also provides insights on either the residual diffusivity in near-calm conditions or the maximal observable standard deviation. 13 refs., 5 figs., 1 tab.

  9. Flow directing means for air-cooled transformers

    DOEpatents

    Jallouk, Philip A.

    1977-01-01

    This invention relates to improvements in systems for force-cooling transformers of the kind in which an outer helical winding and an insulation barrier nested therein form an axially extending annular passage for cooling-fluid flow. In one form of the invention a tubular shroud is positioned about the helical winding to define an axially extending annular chamber for cooling-fluid flow. The chamber has a width in the range of from about 4 to 25 times that of the axially extending passage. Two baffles extend inward from the shroud to define with the helical winding two annular flow channels having hydraulic diameters smaller than that of the chamber. The inlet to the chamber is designed with a hydraulic diameter approximating that of the coolant-entrance end of the above-mentioned annular passage. As so modified, transformers of the kind described can be operated at significantly higher load levels without exceeding safe operating temperatures. In some instances the invention permits continuous operation at 200% of the nameplate rating.

  10. Comparative Assessment of Direct Drive High Temperature Superconducting Generators in Multi-Megawatt Class Wind Turbines

    SciTech Connect

    Maples, B.; Hand, M.; Musial, W.

    2010-10-01

    This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Scaling Model to represent geared and PMDD turbines at machine ratings up to 10 MW and then comparing cost and mass figures of AMSC's HTSDD wind turbine designs to theoretical geared and PMDD turbine designs at 3.1, 6, and 10 MW sizes. Based on the cost and performance data supplied by AMSC, HTSDD technology has good potential to compete successfully as an alternative technology to PMDD and geared technology turbines in the multi megawatt classes. In addition, data suggests the economics of HTSDD turbines improve with increasing size, although several uncertainties remain for all machines in the 6 to 10 MW class.

  11. Development of a Direct Drive Permanent Magnet Generator for Small Wind Turbines

    SciTech Connect

    Chertok, Allan; Hablanian, David; McTaggart, Paul; DOE Project Officer - Keith Bennett

    2004-11-16

    In this program, TIAX performed the conceptual design and analysis of an innovative, modular, direct-drive permanent magnet generator (PMG) for use in small wind turbines that range in power rating from 25 kW to 100 kW. TIAX adapted an approach that has been successfully demonstrated in high volume consumer products such as direct-drive washing machines and portable generators. An electromagnetic model was created and the modular PMG design was compared to an illustrative non-modular design. The resulting projections show that the modular design can achieve significant reductions in size, weight, and manufacturing cost without compromising efficiency. Reducing generator size and weight can also lower the size and weight of other wind turbine components and hence their manufacturing cost.

  12. Characterization of waviness in wind turbine blades using air coupled ultrasonics

    SciTech Connect

    Chakrapani, Sunil Kishore; Dayal, Vinay; Hsu, David K.; Barnard, Daniel J.; Gross, Andrew

    2011-06-23

    Waviness in glass fiber reinforced composite is of great interest in composite research, since it results in the loss of stiffness. Several NDE techniques have been used previously to detect waviness. This work is concerned with waves normal to the plies in a composite. Air-coupled ultrasonics was used to detect waviness in thick composites used in the manufacturing of wind turbine blades. Composite samples with different wave aspect ratios were studied. Different wavy samples were characterized, and a three step process was developed to make sure the technique is field implementable. This gives us a better understanding of the effect of waviness in thick composites, and how it affects the life and performance of the composite.

  13. Direct control of air gap flux in permanent magnet machines

    DOEpatents

    Hsu, John S.

    2000-01-01

    A method and apparatus for field weakening in PM machines uses field weakening coils (35, 44, 45, 71, 72) to produce flux in one or more stators (34, 49, 63, 64), including a flux which counters flux normally produced in air gaps between the stator(s) (34, 49, 63, 64) and the rotor (20, 21, 41, 61) which carries the PM poles. Several modes of operation are introduced depending on the magnitude and polarity of current in the field weakening coils (35, 44, 45, 71, 72). The invention is particularly useful for, but not limited to, the electric vehicle drives and PM generators.

  14. Improved Performance of an Air Cooled Condenser (ACC) Using SPX Wind Guide Technology at Coal-Based Thermoelectric Power Plants

    SciTech Connect

    Ken Mortensen

    2010-12-31

    This project added a new airflow enhancement technology to an existing ACC cooling process at a selected coal power plant. Airflow parameters and efficiency improvement for the main plant cooling process using the applied technology were determined and compared with the capabilities of existing systems. The project required significant planning and pre-test execution in order to reach the required Air Cooled Condenser system configuration for evaluation. A host Power Plant ACC system had to be identified, agreement finalized, and addition of the SPX ACC Wind Guide Technology completed on that site. Design of the modification, along with procurement, fabrication, instrumentation, and installation of the new airflow enhancement technology were executed. Baseline and post-modification cooling system data was collected and evaluated. The improvement of ACC thermal performance after SPX wind guide installation was clear. Testing of the improvement indicates there is a 5% improvement in heat transfer coefficient in high wind conditions and 1% improvement at low wind speed. The benefit increased with increasing wind speed. This project was completed on schedule and within budget.

  15. Electric power generating plant having direct-coupled steam and compressed-air cycles

    DOEpatents

    Drost, M.K.

    1981-01-07

    An electric power generating plant is provided with a Compressed Air Energy Storage (CAES) system which is directly coupled to the steam cycle of the generating plant. The CAES system is charged by the steam boiler during off peak hours, and drives a separate generator during peak load hours. The steam boiler load is thereby levelized throughout an operating day.

  16. Electric power generating plant having direct coupled steam and compressed air cycles

    DOEpatents

    Drost, Monte K.

    1982-01-01

    An electric power generating plant is provided with a Compressed Air Energy Storage (CAES) system which is directly coupled to the steam cycle of the generating plant. The CAES system is charged by the steam boiler during off peak hours, and drives a separate generator during peak load hours. The steam boiler load is thereby levelized throughout an operating day.

  17. The measured field performances of eight different mechanical and air-lift water-pumping wind-turbines

    SciTech Connect

    Kentfield, J.A.C.

    1996-12-31

    Results are presented of the specific performances of eight, different, water-pumping wind-turbines subjected to impartial tests at the Alberta Renewable Energy Test Site (ARETS), Alberta, Canada. The results presented which were derived from the test data, obtained independently of the equipment manufacturers, are expressed per unit of rotor projected area to eliminate the influence of machine size. Hub-height wind speeds and water flow rates for a common lift of 5.5 m (18 ft) constitute the essential test data. A general finding was that, to a first approximation, there were no major differences in specific performance between four units equipped with conventional reciprocating pumps two of which employed reduction gearing and two of which did not. It was found that a unit equipped with a Moyno pump performed well but three air-lift machines had, as was expected, poorer specific performances than the more conventional equipment. 10 refs., 9 figs.

  18. WINDExchange: Selling Wind Power

    WindExchange

    Market Sectors Printable Version Bookmark and Share Utility-Scale Wind Distributed Wind Motivations for Buying Wind Power Buying Wind Power Selling Wind Power Selling Wind Power Owners of wind turbines interconnected directly to the transmission or distribution grid, or that produce more power than the host consumes, can sell wind power as well as other generation attributes. Wind-Generated Electricity Electricity generated by wind turbines can be used to cover on-site energy needs

  19. Comparing Pulsed Doppler LIDAR with SODAR and Direct Measurements for Wind Assessment

    SciTech Connect

    Kelley, N. D.; Jonkman, B. J.; Scott, G. N.; Pichugina, Y. L.

    2007-07-01

    There is a pressing need for good wind-speed measurements at greater and greater heights to assess the availability of the resource in terms of power production and to identify any frequently occurring atmospheric structural characteristics that may create turbulence that impacts the operational reliability and lifetime of wind turbines and their components. In this paper, we summarize the results of a short study that compares the relative accuracies of wind speeds derived from a high-resolution pulsed Doppler LIDAR operated by the National Oceanic and Atmospheric Administration (NOAA) and a midrange Doppler SODAR with wind speeds measured by four levels of tower-based sonic anemometry up to a height of 116 m.

  20. Wind Turbine Radar Interference Mitigation Working Group Releases...

    Energy.gov [DOE] (indexed site)

    While wind energy presents many benefits, spinning wind turbines can interfere with weather, air traffic control, and air surveillance radar systems. As advances in wind technology ...

  1. Open-air direct current plasma jet: Scaling up, uniformity, and cellular control

    SciTech Connect

    Wu, S.; Wang, Z.; Huang, Q.; Lu, X.; Ostrikov, K.

    2012-10-15

    Atmospheric-pressure plasma jets are commonly used in many fields from medicine to nanotechnology, yet the issue of scaling the discharges up to larger areas without compromising the plasma uniformity remains a major challenge. In this paper, we demonstrate a homogenous cold air plasma glow with a large cross-section generated by a direct current power supply. There is no risk of glow-to-arc transitions, and the plasma glow appears uniform regardless of the gap between the nozzle and the surface being processed. Detailed studies show that both the position of the quartz tube and the gas flow rate can be used to control the plasma properties. Further investigation indicates that the residual charges trapped on the inner surface of the quartz tube may be responsible for the generation of the air plasma plume with a large cross-section. The spatially resolved optical emission spectroscopy reveals that the air plasma plume is uniform as it propagates out of the nozzle. The remarkable improvement of the plasma uniformity is used to improve the bio-compatibility of a glass coverslip over a reasonably large area. This improvement is demonstrated by a much more uniform and effective attachment and proliferation of human embryonic kidney 293 (HEK 293) cells on the plasma-treated surface.

  2. Airfoil and blade optimization for a direct-drive, permanent magnet wind generator

    SciTech Connect

    Dini, P.; Bayly, E.

    1996-12-31

    A new blade is designed for a small, variable-speed wind turbine by relying on available theoretical design and analysis methods. The performance predictions are compared to field test measurements and are found to be optimistic. This feedback sheds light on the interpretation of the theoretical results and is used to refine the design method. 9 refs., 10 figs.

  3. Experimental investigation and modeling of a direct-coupled PV/T air collector

    SciTech Connect

    Shahsavar, A.; Ameri, M.

    2010-11-15

    Photovoltaic/thermal (PV/T) systems refer to the integration of photovoltaic and solar thermal technologies into one single system, in that both useful heat energy and electricity are produced. The impetus of this paper is to model a direct-coupled PV/T air collector which is designed, built, and tested at a geographic location of Kerman, Iran. In this system, a thin aluminum sheet suspended at the middle of air channel is used to increase the heat exchange surface and consequently improve heat extraction from PV panels. This PV/T system is tested in natural convection and forced convection (with two, four and eight fans operating) and its unsteady results are presented in with and without glass cover cases. A theoretical model is developed and validated against experimental data, where good agreement between the measured values and those calculated by the simulation model were achieved. Comparisons are made between electrical performance of the different modes of operation, and it is concluded that there is an optimum number of fans for achieving maximum electrical efficiency. Also, results show that setting glass cover on photovoltaic panels leads to an increase in thermal efficiency and decrease in electrical efficiency of the system. (author)

  4. Guide to Using the WIND Toolkit Validation Code

    SciTech Connect

    Lieberman-Cribbin, W.; Draxl, C.; Clifton, A.

    2014-12-01

    In response to the U.S. Department of Energy's goal of using 20% wind energy by 2030, the Wind Integration National Dataset (WIND) Toolkit was created to provide information on wind speed, wind direction, temperature, surface air pressure, and air density on more than 126,000 locations across the United States from 2007 to 2013. The numerical weather prediction model output, gridded at 2-km and at a 5-minute resolution, was further converted to detail the wind power production time series of existing and potential wind facility sites. For users of the dataset it is important that the information presented in the WIND Toolkit is accurate and that errors are known, as then corrective steps can be taken. Therefore, we provide validation code written in R that will be made public to provide users with tools to validate data of their own locations. Validation is based on statistical analyses of wind speed, using error metrics such as bias, root-mean-square error, centered root-mean-square error, mean absolute error, and percent error. Plots of diurnal cycles, annual cycles, wind roses, histograms of wind speed, and quantile-quantile plots are created to visualize how well observational data compares to model data. Ideally, validation will confirm beneficial locations to utilize wind energy and encourage regional wind integration studies using the WIND Toolkit.

  5. Collegiate Wind Competition Wind Tunnel Specifications | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Wind Tunnel Specifications Collegiate Wind Competition Wind Tunnel Specifications Collegiate Wind Competition Wind Tunnel Specifications Teams competing in the U.S. Department of Energy Collegiate Wind Competition must design a prototype wind turbine that fits inside the wind tunnel created to test the performance of each team's project. The tunnel has a "draw down" configuration, introduced by the fan, that sucks air through the box. There are two debris filters, one at

  6. Direct measurement of the characteristic three-body electron attachment time in the atmospheric air in direct current electric field

    SciTech Connect

    Shutov, A. V.; Smetanin, I. V.; Ionin, A. A.; Levchenko, A. O.; Seleznev, L. V.; Sinitsyn, D. V.; Ustinovskii, N. N.; Zvorykin, V. D.

    2013-07-15

    We report the results of theoretical and experimental study of the characteristic time for three-body attachment of electrons produced by 100 fs UV laser pulse in the atmosphere air in the external DC electric field ranged from 0.2 to 10 kV/cm.

  7. Air-kerma strength determination of a new directional {sup 103}Pd source

    SciTech Connect

    Aima, Manik Reed, Joshua L.; DeWerd, Larry A.; Culberson, Wesley S.

    2015-12-15

    Purpose: A new directional {sup 103}Pd planar source array called a CivaSheet™ has been developed by CivaTech Oncology, Inc., for potential use in low-dose-rate (LDR) brachytherapy treatments. The array consists of multiple individual polymer capsules called CivaDots, containing {sup 103}Pd and a gold shield that attenuates the radiation on one side, thus defining a hot and cold side. This novel source requires new methods to establish a source strength metric. The presence of gold material in such close proximity to the active {sup 103}Pd region causes the source spectrum to be significantly different than the energy spectra of seeds normally used in LDR brachytherapy treatments. In this investigation, the authors perform air-kerma strength (S{sub K}) measurements, develop new correction factors for these measurements based on an experimentally verified energy spectrum, and test the robustness of transferring S{sub K} to a well-type ionization chamber. Methods: S{sub K} measurements were performed with the variable-aperture free-air chamber (VAFAC) at the University of Wisconsin Medical Radiation Research Center. Subsequent measurements were then performed in a well-type ionization chamber. To realize the quantity S{sub K} from a directional source with gold material present, new methods and correction factors were considered. Updated correction factors were calculated using the MCNP 6 Monte Carlo code in order to determine S{sub K} with the presence of gold fluorescent energy lines. In addition to S{sub K} measurements, a low-energy high-purity germanium (HPGe) detector was used to experimentally verify the calculated spectrum, a sodium iodide (NaI) scintillating counter was used to verify the azimuthal and polar anisotropy, and a well-type ionization chamber was used to test the feasibility of disseminating S{sub K} values for a directional source within a cylindrically symmetric measurement volume. Results: The UW VAFAC was successfully used to measure the S

  8. Direct Numerical Simulations of Autoignition in Stratified Dimethyl-ether (DME)/Air Turbulent Mixtures

    DOE PAGES [OSTI]

    Bansal, Gaurav; Mascarenhas, Ajith; Chen, Jacqueline H.

    2014-10-01

    In our paper, two- and three-dimensional direct numerical simulations (DNS) of autoignition phenomena in stratified dimethyl-ether (DME)/air turbulent mixtures are performed. A reduced DME oxidation mechanism, which was obtained using rigorous mathematical reduction and stiffness removal procedure from a detailed DME mechanism with 55 species, is used in the present DNS. The reduced DME mechanism consists of 30 chemical species. This study investigates the fundamental aspects of turbulence-mixing-autoignition interaction occurring in homogeneous charge compression ignition (HCCI) engine environments. A homogeneous isotropic turbulence spectrum is used to initialize the velocity field in the domain. Moreover, the computational configuration corresponds to amore » constant volume combustion vessel with inert mass source terms added to the governing equations to mimic the pressure rise due to piston motion, as present in practical engines. DME autoignition is found to be a complex three-staged process; each stage corresponds to a distinct chemical kinetic pathway. The distinct role of turbulence and reaction in generating scalar gradients and hence promoting molecular transport processes are investigated. Then, by applying numerical diagnostic techniques, the different heat release modes present in the igniting mixture are identified. In particular, the contribution of homogeneous autoignition, spontaneous ignition front propagation, and premixed deflagration towards the total heat release are quantified.« less

  9. Direct Numerical Simulations of Autoignition in Stratified Dimethyl-ether (DME)/Air Turbulent Mixtures

    SciTech Connect

    Bansal, Gaurav; Mascarenhas, Ajith; Chen, Jacqueline H.

    2014-10-01

    In our paper, two- and three-dimensional direct numerical simulations (DNS) of autoignition phenomena in stratified dimethyl-ether (DME)/air turbulent mixtures are performed. A reduced DME oxidation mechanism, which was obtained using rigorous mathematical reduction and stiffness removal procedure from a detailed DME mechanism with 55 species, is used in the present DNS. The reduced DME mechanism consists of 30 chemical species. This study investigates the fundamental aspects of turbulence-mixing-autoignition interaction occurring in homogeneous charge compression ignition (HCCI) engine environments. A homogeneous isotropic turbulence spectrum is used to initialize the velocity field in the domain. Moreover, the computational configuration corresponds to a constant volume combustion vessel with inert mass source terms added to the governing equations to mimic the pressure rise due to piston motion, as present in practical engines. DME autoignition is found to be a complex three-staged process; each stage corresponds to a distinct chemical kinetic pathway. The distinct role of turbulence and reaction in generating scalar gradients and hence promoting molecular transport processes are investigated. Then, by applying numerical diagnostic techniques, the different heat release modes present in the igniting mixture are identified. In particular, the contribution of homogeneous autoignition, spontaneous ignition front propagation, and premixed deflagration towards the total heat release are quantified.

  10. Analytical Modeling of a Novel Transverse Flux Machine for Direct Drive Wind Turbine Applications: Preprint

    SciTech Connect

    Hasan, IIftekhar; Husain, Tausif; Uddin, Md Wasi; Sozer, Yilmaz; Husain; Iqbal; Muljadi, Eduard

    2015-08-24

    This paper presents a nonlinear analytical model of a novel double-sided flux concentrating Transverse Flux Machine (TFM) based on the Magnetic Equivalent Circuit (MEC) model. The analytical model uses a series-parallel combination of flux tubes to predict the flux paths through different parts of the machine including air gaps, permanent magnets, stator, and rotor. The two-dimensional MEC model approximates the complex three-dimensional flux paths of the TFM and includes the effects of magnetic saturation. The model is capable of adapting to any geometry that makes it a good alternative for evaluating prospective designs of TFM compared to finite element solvers that are numerically intensive and require more computation time. A single-phase, 1-kW, 400-rpm machine is analytically modeled, and its resulting flux distribution, no-load EMF, and torque are verified with finite element analysis. The results are found to be in agreement, with less than 5% error, while reducing the computation time by 25 times.

  11. Analytical Modeling of a Novel Transverse Flux Machine for Direct Drive Wind Turbine Applications

    SciTech Connect

    Hasan, IIftekhar; Husain, Tausif; Uddin, Md Wasi; Sozer, Yilmaz; Husain, Iqbal; Muljadi, Eduard

    2015-09-02

    This paper presents a nonlinear analytical model of a novel double sided flux concentrating Transverse Flux Machine (TFM) based on the Magnetic Equivalent Circuit (MEC) model. The analytical model uses a series-parallel combination of flux tubes to predict the flux paths through different parts of the machine including air gaps, permanent magnets (PM), stator, and rotor. The two-dimensional MEC model approximates the complex three-dimensional flux paths of the TFM and includes the effects of magnetic saturation. The model is capable of adapting to any geometry which makes it a good alternative for evaluating prospective designs of TFM as compared to finite element solvers which are numerically intensive and require more computation time. A single phase, 1 kW, 400 rpm machine is analytically modeled and its resulting flux distribution, no-load EMF and torque, verified with Finite Element Analysis (FEA). The results are found to be in agreement with less than 5% error, while reducing the computation time by 25 times.

  12. Field test of two high-pressure, direct-contact downhole steam generators. Volume I. Air/diesel system

    SciTech Connect

    Marshall, B.W.

    1983-05-01

    As a part of the Project DEEP STEAM to develop technology to more efficiently utilize steam for the recovery of heavy oil from deep reservoirs, a field test of a downhole steam generator (DSG) was performed. The DSG burned No. 2 diesel fuel in air and was a direct-contact, high pressure device which mixed the steam with the combustion products and injected the resulting mixture directly into the oil reservoir. The objectives of the test program included demonstration of long-term operation of a DSG, development of operational methods, assessment of the effects of the steam/combustion gases on the reservoir and comparison of this air/diesel DSG with an adjacent oxygen/diesel direct contact generator. Downhole operation of the air/diesel DSG was started in June 1981 and was terminated in late February 1982. During this period two units were placed downhole with the first operating for about 20 days. It was removed, the support systems were slightly modified, and the second one was operated for 106 days. During this latter interval the generator operated for 70% of the time with surface air compressor problems the primary source of the down time. Thermal contact, as evidenced by a temperature increase in the production well casing gases, and an oil production increase were measured in one of the four wells in the air/diesel pattern. Reservoir scrubbing of carbon monoxide was observed, but no conclusive data on scrubbing of SO/sub x/ and NO/sub x/ were obtained. Corrosion of the DSG combustor walls and some other parts of the downhole package were noted. Metallurgical studies have been completed and recommendations made for other materials that are expected to better withstand the downhole combustion environment. 39 figures, 8 tables.

  13. An Exploration of Wind Energy & Wind Turbines

    Education - Teach & Learn

    This unit, which includes both a pre and post test on wind power engages students by allowing them to explore connections between wind energy and other forms of energy. Students learn about and examine the overall design of a wind turbine and then move forward with an assessment of the energy output as factors involving wind speed, direction and blade design are altered. Students are directed to work in teams to design, test and analyze components of a wind turbine such as blade length, blade shape, height of turbine, etc Student worksheets are included to facilitate the design and analysis process. Learning Goals: Below are the learning targets for the wind energy unit.

  14. Air gap winding method and support structure for a super conducting generator and method for forming the same

    DOEpatents

    Hopeck, James Frederick

    2003-11-25

    A method of forming a winding support structure for use with a superconducting rotor wherein the method comprises providing an inner support ring, arranging an outer support ring around the inner support ring, coupling first and second support blocks to the outer support ring and coupling a lamination to the first and second support blocks. A slot is defined between the support blocks and between the outer support ring and the lamination to receive a portion of a winding. An RTV fills any clearance space in the slot.

  15. Greenhouse gas and air pollutant emission reduction potentials of renewable energy - case studies on photovoltaic and wind power introduction considering interactions among technologies in Taiwan

    SciTech Connect

    Yu-Ming Kuo; Yasuhiro Fukushima

    2009-03-15

    To achieve higher energy security and lower emission of greenhouse gases (GHGs) and pollutants, the development of renewable energy has attracted much attention in Taiwan. In addition to its contribution to the enhancement of reliable indigenous resources, the introduction of renewable energy such as photovoltaic (PV) and wind power systems reduces the emission of GHGs and air pollutants by substituting a part of the carbon- and pollutant-intensive power with power generated by methods that are cleaner and less carbon-intensive. To evaluate the reduction potentials, consequential changes in the operation of different types of existing power plants have to be taken into account. In this study, a linear mathematical programming model is constructed to simulate a power mix for a given power demand in a power market sharing a cost-minimization objective. By applying the model, the emission reduction potentials of capacity extension case studies, including the enhancement of PV and wind power introduction at different scales, were assessed. In particular, the consequences of power mix changes in carbon dioxide, nitrogen oxides, sulfur oxides, and particulates were discussed. Seasonally varying power demand levels, solar irradiation, and wind strength were taken into account. In this study, we have found that the synergetic reduction of carbon dioxide emission induced by PV and wind power introduction occurs under a certain level of additional installed capacity. Investigation of a greater variety of case studies on scenario development with emerging power sources becomes possible by applying the model developed in this study. 15 refs., 8 figs., 11 tabs.

  16. Development of an Offshore Direct-Drive Wind Turbine Model by Using a Flexible Multibody Simulation (Poster)

    SciTech Connect

    Bergua, R.; Jove, J.; Campbell, J.; Guo, Y.; Van Dam, J.

    2014-05-01

    Modern wind turbines are complex, highly-coupled systems. The dynamic interaction between various components is especially pronounced for multi-megawatt wind turbines. As a result, design process is generally split in several phases. First step consists of creating a global aero-elastic model that includes essential dynamics of structural components using the minimum-possible number of degrees of freedom (d.o.f.). The most important simplifications concern drivetrain and rotor-nacelle assembly (RNA). This approach has been shown valid for several wind turbine configurations. Nevertheless, with increasing size of wind turbines, any simplified design approach must be validated. The present work deals with the comparison and validation of the two modeling approaches for directdrive offshore wind turbines. ARNA/drivetrain model idealized as collection of lumped masses and springs is compared to a detailed Finite Element Method (FEM) based model. The comparison between models focuses on dynamic loads concerning drivetrain system. The comparison is performed in several operational conditions in order to explore the range of validity of the simplified model. Finally, the paper proposes a numerical-based workflow to assess the validity of simplified models of RNA/drivetrain in an aero-elastic global WT model.

  17. Wind Regimes in Complex Terrain of the Great Valley of Eastern Tennessee

    SciTech Connect

    Birdwell, Kevin R

    2011-05-01

    This research was designed to provide an understanding of physical wind mechanisms within the complex terrain of the Great Valley of Eastern Tennessee to assess the impacts of regional air flow with regard to synoptic and mesoscale weather changes, wind direction shifts, and air quality. Meteorological data from 2008 2009 were analyzed from 13 meteorological sites along with associated upper level data. Up to 15 ancillary sites were used for reference. Two-step complete linkage and K-means cluster analyses, synoptic weather studies, and ambient meteorological comparisons were performed to generate hourly wind classifications. These wind regimes revealed seasonal variations of underlying physical wind mechanisms (forced channeled, vertically coupled, pressure-driven, and thermally-driven winds). Synoptic and ambient meteorological analysis (mixing depth, pressure gradient, pressure gradient ratio, atmospheric and surface stability) suggested up to 93% accuracy for the clustered results. Probabilistic prediction schemes of wind flow and wind class change were developed through characterization of flow change data and wind class succession. Data analysis revealed that wind flow in the Great Valley was dominated by forced channeled winds (45 67%) and vertically coupled flow (22 38%). Down-valley pressure-driven and thermally-driven winds also played significant roles (0 17% and 2 20%, respectively), usually accompanied by convergent wind patterns (15 20%) and large wind direction shifts, especially in the Central/Upper Great Valley. The behavior of most wind regimes was associated with detectable pressure differences between the Lower and Upper Great Valley. Mixing depth and synoptic pressure gradients were significant contributors to wind pattern behavior. Up to 15 wind classes and 10 sub-classes were identified in the Central Great Valley with 67 joined classes for the Great Valley at-large. Two-thirds of Great Valley at-large flow was defined by 12 classes. Winds

  18. Cross-directional interlocking of rolls in an air press of a papermaking machine

    DOEpatents

    Beck, David A.; Gorshe, Thomas

    2003-05-13

    An air press for pressing a paper web is composed of a plurality of rolls including at least a first roll and a second roll. The first roll and the second roll are positioned adjacent one another and form a first nip therebetween. Further, the first roll and the second roll each have a roll end, the roll end of the first roll adjoining the roll end of the second roll. A bevel plate is attached to the roll end of the first roll, the bevel plate having at least a first angled plate face. A seal ring is positioned adjacent the roll end of the second roll, the seal ring being juxtaposed to the bevel plate. The seal ring has at least a first angled ring face, and the first angled ring face mates with the first angled plate face.

  19. Capturing energy from the wind

    SciTech Connect

    Schefter, J.L.

    1982-01-01

    The history of the harnessing of wind power and basic facts about the wind and wind machines are discussed. The small machines, the large turbines, and the direction for the future are described. (MHR)

  20. DunoAir | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    DunoAir Jump to: navigation, search Name: DunoAir Place: Hessen, Germany Zip: 6865 VX Sector: Wind energy Product: Doorwerth-based wind project developer. References: DunoAir1...

  1. Direct

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and the pollutant emission is hence directly proportional to the bulk neutral density. Simultaneously monitoring the total emission at 1040 nm and the neutral contaminant...

  2. Directions

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hilton Santa Fe Buffalo Thunder at (505) 455-5555 for shuttle information from the airport and downtown Santa Fe. Driving Directions to Hilton Santa Fe Buffalo Thunder Hilton...

  3. Isokinetic air sampler

    DOEpatents

    Sehmel, George A.

    1979-01-01

    An isokinetic air sampler includes a filter, a holder for the filter, an air pump for drawing air through the filter at a fixed, predetermined rate, an inlet assembly for the sampler having an inlet opening therein of a size such that isokinetic air sampling is obtained at a particular wind speed, a closure for the inlet opening and means for simultaneously opening the closure and turning on the air pump when the wind speed is such that isokinetic air sampling is obtained. A system incorporating a plurality of such samplers provided with air pumps set to draw air through the filter at the same fixed, predetermined rate and having different inlet opening sizes for use at different wind speeds is included within the ambit of the present invention as is a method of sampling air to measure airborne concentrations of particulate pollutants as a function of wind speed.

  4. Wind tunnel performance data for the Darrieus wind turbine with...

    Office of Scientific and Technical Information (OSTI)

    Research Org: Sandia Labs., Albuquerque, N.Mex. (USA) Country of Publication: United States Language: English Subject: 17 WIND ENERGY; DARRIEUS ROTORS; PERFORMANCE TESTING; AIR; ...

  5. Direct observation of a resolvable spin separation in the spin Hall effect of light at an air-glass interface

    SciTech Connect

    Ren, Jin-Li; Wang, Bo; Xiao, Yun-Feng; Gong, Qihuang; Li, Yan

    2015-09-14

    We theoretically and experimentally demonstrate that it is possible to directly observe the resolvable spin separation in the spin Hall effect of light at an air-glass interface by choosing optimal parameters. When a P-polarized light with a beam waist of 10 μm is incident around Brewster's angle, the two spin components of the reflected beam can be completely separated by eliminating the influence of the in-plane wavevector spread. This not only obviously reveals the strong impacts of the polarization state, the incident angle, the beam waist, and the in-plane wavevector spread, but also intuitively visualizes the observation of the spin Hall effect of light.

  6. Renaissance for wind power

    SciTech Connect

    Flavin, C.

    1981-10-01

    Wind research and development during the 1970s and recent studies showing wind to be a feasible source of both electrical and mechanical power are behind the rapid expansion of wind energy. Improved technology should make wind energy economical in most countries having sufficient wind and appropriate needs. A form of solar energy, winds form a large pattern of global air circulation because the earth's rotation causes differences in pressure and oceans cause differences in temperature. New development in the ancient art of windmill making date to the 1973 oil embargo, but wind availability must be determined at local sites to determine feasibility. Whether design features of the new technology and the concept of large wind farms will be incorporated in national energy policies will depend on changing attitudes, acceptance by utilities, and the speed with which new information is developed and disseminated. 44 references, 6 figures. (DCK)

  7. Renewables and air quality

    SciTech Connect

    Wooley, D.R.

    2000-08-01

    The US heavy reliance on fossil fuels is a central obstacle to improving air quality and preventing catastrophic climate change. To solve this problem will require a combination of financial incentives and market rules that strongly encourage development of renewable energy resources to meet electric power demand. One promising policy option is to allow renewable energy resources to directly participate in air pollution emission trading mechanisms. Currently, the clean air benefits of renewable energy generally go unrecognized by regulators, under-appreciated by consumers and uncompensated by markets. Renewable energy is a key clean air alternative to conventional electricity generation, and the development of renewables could be stimulated by changes to the Clean Air Act's emissions trading programs. As Congress revisits clean air issues over the next several years, renewable energy representatives could push for statutory changes that reward the renewable energy industry for the air quality benefits it provides. By also becoming involved in key US Environmental Protection Agency (EPA) and state rule-making cases, the renewables industry could influence the structure of emissions trading programs and strengthen one of the most persuasive arguments for wind, solar and biomass energy development.

  8. Alpha-environmental continuous air monitor inlet

    DOEpatents

    Rodgers, John C.

    2003-01-01

    A wind deceleration and protective shroud that provides representative samples of ambient aerosols to an environmental continuous air monitor (ECAM) has a cylindrical enclosure mounted to an input on the continuous air monitor, the cylindrical enclosure having shrouded nozzles located radially about its periphery. Ambient air flows, often along with rainwater flows into the nozzles in a sampling flow generated by a pump in the continuous air monitor. The sampling flow of air creates a cyclonic flow in the enclosure that flows up through the cylindrical enclosure until the flow of air reaches the top of the cylindrical enclosure and then is directed downward to the continuous air monitor. A sloped platform located inside the cylindrical enclosure supports the nozzles and causes any moisture entering through the nozzle to drain out through the nozzles.

  9. West Winds Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

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

  10. Wind turbine generators having wind assisted cooling systems and cooling methods

    DOEpatents

    Bagepalli, Bharat; Barnes, Gary R.; Gadre, Aniruddha D.; Jansen, Patrick L.; Bouchard, Jr., Charles G.; Jarczynski, Emil D.; Garg, Jivtesh

    2008-09-23

    A wind generator includes: a nacelle; a hub carried by the nacelle and including at least a pair of wind turbine blades; and an electricity producing generator including a stator and a rotor carried by the nacelle. The rotor is connected to the hub and rotatable in response to wind acting on the blades to rotate the rotor relative to the stator to generate electricity. A cooling system is carried by the nacelle and includes at least one ambient air inlet port opening through a surface of the nacelle downstream of the hub and blades, and a duct for flowing air from the inlet port in a generally upstream direction toward the hub and in cooling relation to the stator.

  11. Landowners and Wind Energy Development | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Landowners and Wind Energy Development Jump to: navigation, search Photo from Cielo Wind Power Corporation, NREL 10558 Many people will benefit from the clean air and economic...

  12. Tornado type wind turbines

    DOEpatents

    Hsu, Cheng-Ting

    1984-01-01

    A tornado type wind turbine has a vertically disposed wind collecting tower with spaced apart inner and outer walls and a central bore. The upper end of the tower is open while the lower end of the structure is in communication with a wind intake chamber. An opening in the wind chamber is positioned over a turbine which is in driving communication with an electrical generator. An opening between the inner and outer walls at the lower end of the tower permits radially flowing air to enter the space between the inner and outer walls while a vertically disposed opening in the wind collecting tower permits tangentially flowing air to enter the central bore. A porous portion of the inner wall permits the radially flowing air to interact with the tangentially flowing air so as to create an intensified vortex flow which exits out of the top opening of the tower so as to create a low pressure core and thus draw air through the opening of the wind intake chamber so as to drive the turbine.

  13. Wind Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Generation - ScheduledActual Balancing Reserves - Deployed Near Real-time Wind Animation Wind Projects under Review Growth Forecast Fact Sheets Working together to address...

  14. Prairie Winds Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

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

  15. Aleutian Pribilof Islands Wind Energy Feasibility Study

    SciTech Connect

    Bruce A. Wright

    2012-03-27

    Under this project, the Aleutian Pribilof Islands Association (APIA) conducted wind feasibility studies for Adak, False Pass, Nikolski, Sand Point and St. George. The DOE funds were also be used to continue APIA's role as project coordinator, to expand the communication network quality between all participants and with other wind interest groups in the state and to provide continued education and training opportunities for regional participants. This DOE project began 09/01/2005. We completed the economic and technical feasibility studies for Adak. These were funded by the Alaska Energy Authority. Both wind and hydro appear to be viable renewable energy options for Adak. In False Pass the wind resource is generally good but the site has high turbulence. This would require special care with turbine selection and operations. False Pass may be more suitable for a tidal project. APIA is funded to complete a False Pass tidal feasibility study in 2012. Nikolski has superb potential for wind power development with Class 7 wind power density, moderate wind shear, bi-directional winds and low turbulence. APIA secured nearly $1M from the United States Department of Agriculture Rural Utilities Service Assistance to Rural Communities with Extremely High Energy Costs to install a 65kW wind turbine. The measured average power density and wind speed at Sand Point measured at 20m (66ft), are 424 W/m2 and 6.7 m/s (14.9 mph) respectively. Two 500kW Vestas turbines were installed and when fully integrated in 2012 are expected to provide a cost effective and clean source of electricity, reduce overall diesel fuel consumption estimated at 130,000 gallons/year and decrease air emissions associated with the consumption of diesel fuel. St. George Island has a Class 7 wind resource, which is superior for wind power development. The current strategy, led by Alaska Energy Authority, is to upgrade the St. George electrical distribution system and power plant. Avian studies in Nikolski and

  16. Comparison of direct numerical simulation of lean premixed methane-air flames with strained laminar flame calculations.

    SciTech Connect

    Chen, Jacqueline H.; Hawkes, Evatt R.

    2004-08-01

    Direct numerical simulation (DNS) with complex chemistry was used to study statistics of displacement and consumption speeds in turbulent lean premixed methane-air flames. The main focus of the study is an evaluation of the extent to which a turbulent flame in the thin reaction zones regime can be described by an ensemble of strained laminar flames. Conditional averages with respect to strain for displacement and consumption speeds are presented over a wide range of strain typically encountered in a turbulent flame, compared with previous studies that either made local pointwise comparisons or conditioned the data on small strain and curvature. The conditional averages for positive strains are compared with calculated data from two different canonical strained laminar configurations to determine which is the optimal representation of a laminar flame structure embedded in a turbulent flame: the reactant-to-product (R-to-P) configuration or the symmetric twin flame configuration. Displacement speed statistics are compared for the progress-variable isosurface of maximum reaction rate and an isosurface toward the fresh gases, which are relevant for both modeling and interpretation of experiment results. Displacement speeds in the inner reaction layer are found to agree very well with the laminar R-to-P calculations over a wide range of strain for higher Damkhler number conditions, well beyond the regime in which agreement was expected. For lower Damkhler numbers, a reduced response to strain is observed, consistent with previous studies and theoretical expectations. Compared with the inner layer, broader and shifted probability density functions (PDFs) of displacement speed were observed in the fresh gases, and the agreement with the R-to-P calculations deteriorated. Consumption speeds show a poorer agreement with strained laminar calculations, which is attributed to multidimensional effects and a more attenuated unsteady response to strain fluctuations; however, they

  17. Wind tower service lift

    DOEpatents

    Oliphant, David; Quilter, Jared; Andersen, Todd; Conroy, Thomas

    2011-09-13

    An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.

  18. Wind Program: A New Vision for U.S. Wind Power

    SciTech Connect

    2013-05-07

    A link to the New Vision for U.S. Wind Power Web page, which enables stakeholders to provide input on the direction of the wind industry.

  19. Wind energy: data acquisition and real-time analysis

    SciTech Connect

    Dastmalchi, B.

    1980-12-01

    A minicomputer-based data acquisition system was developed that supplies a curve fit of data in real time and is small enough to be easily carried and installed as a portable unit. The algorithm for data analysis was developed and the software provided for a Hewlett Packard HP9845T minicomputer. The algorithm was then tested on a Darrieus wind turbine generator located at the Colorado State University dairy farm. The measurements include: wind speed and direction, air temperature, and ac power for each phase of the three-phase induction generator. A linear model is described for the power vs. wind speed curve, and the effect of wind variation (gustiness) is considered. Software for the system is listed and discussed. Results are then presented and compared. (LEW)

  20. Wind Turbine Testing | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Turbine Testing Photo of a large wind turbine blade sticking out of the structural testing laboratory; it is perpendicular to a building at the National Wind Technology Center. A multimegawatt wind turbine blade extends outside of the structural testing facility at the NWTC. PIX #19010 Testing capabilities at the National Wind Technology Center (NWTC) support the installation and testing of wind turbines that range in size from 400 watts to 5.0 megawatts. Engineers provide wind industry

  1. EA-1892: Direct Final Rule Energy Conservation Standards for Residential Furnaces and Residential Central Air Conditioners & Heat Pumps

    Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to adopt energy conservation standards for various consumer products and certain commercial and industrial equipment, including residential furnaces and residential air conditioners and heat pumps, as required by the Energy Policy and Conservation Act, as amended (42 U.S.C. 6291 et seq.)

  2. Collegiate Wind Competition Wind Tunnel Specifications | Department...

    Energy Saver

    Wind Tunnel Specifications Collegiate Wind Competition Wind Tunnel Specifications Collegiate Wind Competition Wind Tunnel Specifications Teams competing in the U.S. Department of ...

  3. Wind Simulation

    Energy Science and Technology Software Center

    2008-12-31

    The Software consists of a spreadsheet written in Microsoft Excel that provides an hourly simulation of a wind energy system, which includes a calculation of wind turbine output as a power-curve fit of wind speed.

  4. CLOUDS, AEROSOLS, RADIATION AND THE AIR-SEA INTERFACE OF THE SOUTHERN OCEAN: ESTABLISHING DIRECTIONS FOR FUTURE RESEARCH

    SciTech Connect

    Wood, Robert; Bretherton, Chris; McFarquhar, Greg; Protat, Alain; Quinn, Patricia; Siems, Steven; Jakob, Christian; Alexander, Simon; Weller, Bob

    2014-09-29

    A workshop sponsored by the Department of Energy was convened at the University of Washington to discuss the state of knowledge of clouds, aerosols and air-sea interaction over the Southern Ocean and to identify strategies for reducing uncertainties in their representation in global and regional models. The Southern Ocean plays a critical role in the global climate system and is a unique pristine environment, yet other than from satellite, there have been sparse observations of clouds, aerosols, radiation and the air-sea interface in this region. Consequently, much is unknown about atmospheric and oceanographic processes and their linkage in this region. Approximately 60 scientists, including graduate students, postdoctoral fellows and senior researchers working in atmospheric and oceanic sciences at U.S. and foreign universities and government laboratories, attended the Southern Ocean Workshop. It began with a day of scientific talks, partly in plenary and partly in two parallel sessions, discussing the current state of the science for clouds, aerosols and air-sea interaction in the Southern Ocean. After the talks, attendees broke into two working groups; one focused on clouds and meteorology, and one focused on aerosols and their interactions with clouds. This was followed by more plenary discussion to synthesize the two working group discussions and to consider possible plans for organized activities to study clouds, aerosols and the air-sea interface in the Southern Ocean. The agenda and talk slides, including short summaries of the highlights of the parallel session talks developed by the session chars, are available at http://www.atmos.washington.edu/socrates/presentations/SouthernOceanPresentations/.

  5. Wind Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... First Power for SWiFT Turbine Achieved during Recommissioning Facilities, News, Renewable Energy, SWIFT, Wind Energy, Wind News First Power for SWiFT Turbine Achieved during ...

  6. Wind News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Laboratory PV Regional Test Centers Scaled Wind Farm Technology Facility Climate & Earth ...

  7. wind energy

    National Nuclear Security Administration (NNSA)

    5%2A en Pantex to Become Wind Energy Research Center http:nnsa.energy.govfieldofficesnponpopressreleasespantex-become-wind-energy-research-center

  8. Wind News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Wind-turbine blade growth continues to have the largest impact on energy capture and ...

  9. Collegiate Wind Competition Wind Tunnel Specifications

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tunnel Specifications The basic wind tunnel configuration is shown below. The dimensions of the test chamber are 4 ft x 4 ft x 8 ft (48 in x 48 in x 96 in). There are inlet and outlet components of the wind tunnel that extend beyond the test chamber as shown. The tunnel has a "draw down" configuration. That is, the air is "sucked through" the test section-entering at the left, exiting at the right-with the draw down being induced by the fan on the right side of the tunnel. A

  10. Wind Resource Assessment | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Resource Assessment A map of the United States is color-coded to indicate the high winds at 80 meters. This map shows the wind resource at 80 meters for both land-based and ...

  11. Energy Efficient Removal of Volatile Organic Compounds (VOCs) and Organic Hazardous Air Pollutants (o-HAPs) from Industrial Waste Streams by Direct Electron Oxidation

    SciTech Connect

    Testoni, A. L.

    2011-10-19

    This research program investigated and quantified the capability of direct electron beam destruction of volatile organic compounds and organic hazardous air pollutants in model industrial waste streams and calculated the energy savings that would be realized by the widespread adoption of the technology over traditional pollution control methods. Specifically, this research determined the quantity of electron beam dose required to remove 19 of the most important non-halogenated air pollutants from waste streams and constructed a technical and economic model for the implementation of the technology in key industries including petroleum refining, organic & solvent chemical production, food & beverage production, and forest & paper products manufacturing. Energy savings of 75 - 90% and green house gas reductions of 66 - 95% were calculated for the target market segments.

  12. Doppler Lidar Wind Value-Added Product (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Wind Value-Added Product Citation Details In-Document Search Title: Doppler Lidar Wind Value-Added Product Wind speed and direction, together with pressure, temperature, and ...

  13. Distributed Wind Research | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    an introduction to distributed wind projects and a brief overview of topics to consider when developing a distributed wind energy ordinance. Distributed Wind Ordinances Photo from Byers and Renier Construction, NREL 18820 Distributed Wind Ordinances The U.S. Department of Energy defines distributed wind projects as: (a) The use of wind turbines, on- or off-grid, at homes, farms and ranches, businesses, public and industrial facilities, or other sites to offset all or a portion of the local

  14. Offshore Wind Research | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    A photo of several rows of wind turbines standing in the ocean with the sun overhead. Capabilities NREL's offshore wind turbine research capabilities focus on critical areas that ...

  15. Demonstration of a directional sonic prism in two dimensions using an air-acoustic leaky wave antenna

    SciTech Connect

    Naify, Christina J. Rohde, Charles A.; Calvo, David C.; Orris, Gregory J.; Guild, Matthew D.

    2015-09-28

    Analysis and experimental demonstration of a two-dimensional acoustic leaky wave antenna is presented for use in air. The antenna is comprised of a two-dimensional waveguide patterned with radiating acoustic shunts. When excited using a single acoustic source within the waveguide, the antenna acts as a sonic prism that exhibits frequency steering. This design allows for control of acoustic steering angle using only a single source transducer and a patterned aperture. Aperture design was determined using transmission line analysis and finite element methods. The designed antenna was fabricated and the steering angle measured. The performance of the measured aperture was within 9% of predicted angle magnitudes over all examined frequencies.

  16. Ozone generation by negative direct current corona discharges in dry air fed coaxial wire-cylinder reactors

    SciTech Connect

    Yehia, Ashraf; Mizuno, Akira

    2013-05-14

    An analytical study was made in this paper for calculating the ozone generation by negative dc corona discharges. The corona discharges were formed in a coaxial wire-cylinder reactor. The reactor was fed by dry air flowing with constant rates at atmospheric pressure and room temperature, and stressed by a negative dc voltage. The current-voltage characteristics of the negative dc corona discharges formed inside the reactor were measured in parallel with concentration of the generated ozone under different operating conditions. An empirical equation was derived from the experimental results for calculating the ozone concentration generated inside the reactor. The results, that have been recalculated by using the derived equation, have agreed with the experimental results over the whole range of the investigated parameters, except in the saturation range for the ozone concentration. Therefore, the derived equation represents a suitable criterion for expecting the ozone concentration generated by negative dc corona discharges in dry air fed coaxial wire-cylinder reactors under any operating conditions in range of the investigated parameters.

  17. Wind Turbine Radar Interference Mitigation Working Group Releases New

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Report | Department of Energy Turbine Radar Interference Mitigation Working Group Releases New Report Wind Turbine Radar Interference Mitigation Working Group Releases New Report February 10, 2016 - 2:48pm Addthis While wind energy presents many benefits, spinning wind turbines can interfere with weather, air traffic control, and air surveillance radar systems. As advances in wind technology enable turbines to be deployed in new regions of the country, the probability for wind development to

  18. Boulder Wind Power Advanced Gearless Drivetrain: Cooperative Research and Development Final Report, CRADA Number CRD-12-00463

    SciTech Connect

    Cotrell, J.

    2013-04-01

    The Boulder Wind Power (BWP) Advanced Gearless Drivetrain Project explored the application of BWP's innovative, axial-gap, air-core, permanent-magnet direct-drive generator in offshore wind turbines. The objective of this CRADA is to assess the benefits that result from reduced towerhead mass of BWP's technology when used in 6 MW offshore turbines installed on a monopile or a floating spar foundation.

  19. Demonstration of Air-Power-Assist Engine Technology for Clean Combustion and Direct Energy Recovery in Heavy Duty Application

    SciTech Connect

    Hyungsuk Kang; Chun Tai

    2010-05-01

    The first phase of the project consists of four months of applied research, starting from September 1, 2005 and was completed by December 31, 2005. During this time, the project team heavily relied on highly detailed numerical modeling techniques to evaluate the feasibility of the APA technology. Specifically, (i) A GT-Power{sup TM}engine simulation model was constructed to predict engine efficiency at various operating conditions. Efficiency was defined based on the second-law thermodynamic availability. (ii) The engine efficiency map generated by the engine simulation was then fed into a simplified vehicle model, which was constructed in the Matlab/Simulink environment, to predict fuel consumption of a refuse truck on a simple collection cycle. (iii) Design and analysis work supporting the concept of retrofitting an existing Sturman Industries Hydraulic Valve Actuation (HVA) system with the modifications that are required to run the HVA system with Air Power Assist functionality. A Matlab/Simulink model was used to calculate the dynamic response of the HVA system. Computer aided design (CAD) was done in Solidworks for mechanical design and hydraulic layout. At the end of Phase I, 11% fuel economy improvement was predicted. During Phase II, the engine simulation group completed the engine mapping work. The air handling group made substantial progress in identifying suppliers and conducting 3D modelling design. Sturman Industries completed design modification of the HVA system, which was reviewed and accepted by Volvo Powertrain. In Phase II, the possibility of 15% fuel economy improvement was shown with new EGR cooler design by reducing EGR cooler outlet temperature with APA engine technology from Air Handling Group. In addition, Vehicle Simulation with APA technology estimated 4 -21% fuel economy improvement over a wide range of driving cycles. During Phase III, the engine experimental setup was initiated at VPTNA, Hagerstown, MD. Air Handling system and HVA

  20. Influence of air motion variation on the performance of a direct-injection stratified-charge engine

    SciTech Connect

    Witze, P.O.

    1980-09-01

    Swirl rates and turbulence levels in an optically accessible research engine were varied by changing the orientation of the shrouded intake valve. The air motion within the cylinder was characterized using laser Doppler velocimetry. Measurements of the indicated mean effective pressure are reported as a function of the shroud orientation, equivalence ratio, and ignition timing. Laser shadowgraph photography was used to visualize the interaction of the fuel jet with the swirling flow and the ensuing combustion process. For the case of high-swirl/low turbulence, the flame is seen to remain attached to the spark plug, and its rapid propagation is convection dominated; for low-swirl/high-turbulence conditions, the flame is not attached, and propagation is mainly by turbulent diffusion.

  1. Synthesis of free-standing carbon nanohybrid by directly growing carbon nanotubes on air-sprayed graphene oxide paper and its application in supercapacitor

    SciTech Connect

    Wei, Li; Jiang, Wenchao; Yuan, Yang; Goh, Kunli; Yu, Dingshan; Wang, Liang; Chen, Yuan

    2015-04-15

    We report the synthesis of a free-standing two dimensional carbon nanotube (CNT)-reduced graphene oxide (rGO) hybrid by directly growing CNTs on air-sprayed GO paper. As a result of the good integration between CNTs and thermally reduced GO film during chemical vapor deposition, excellent electrical conductivity (2.6×10{sup 4} S/m), mechanical flexibility (electrical resistance only increases 1.1% after bent to 90° for 500 times) and a relatively large surface area (335.3 m{sup 2}/g) are achieved. Two-electrode supercapacitor assembled using the CNT–rGO hybrids in ionic liquid electrolyte (1-ethyl-3-methylimidazolium tetrafluoroborate) shows excellent stability upon 500 bending cycles with the gravimetric energy density measuring 23.7 Wh/kg and a power density of 2.0 kW/kg. Furthermore, it shows an impedance phase angle of −64.4° at a frequency of 120 Hz, suggesting good potentials for 120 Hz alternating current line filtering applications. - Graphical abstract: Flexible and highly conductive carbon nanotube-reduced graphene oxide nanohybrid. - Highlights: • Direct growth of carbon nanotubes by chemical vapor deposition on air-sprayed graphene oxide paper. • Two-dimensional carbon nanohybrid with excellent conductivity and mechanical flexibility. • Supercapacitor with excellent performance stability upon mechanical deformation for flexible electronics applications. • Supercapacitor with high impedance phase angle for 120 Hz alternating current line filtering applications.

  2. Final Report for Project: Impacts of stratification and non-equilibrium winds and waves on hub-height winds

    SciTech Connect

    Patton, Edward G.

    2015-07-14

    wind plant scale. Overall project conclusions include; In the presence of fast-moving swell (significant wave height Hs = 6.4 m, and phase speed cp = 18 ms-1), the atmospheric boundary layer grows more rapidly when waves propagate opposite to the winds compared to when winds and waves are aligned. Pressure drag increases by nearly a factor of 2 relative to the turbulent stress for the extreme case where waves propagate at 180° compared to the pressure gradient forcing. Net wind speed reduces by nearly 15% at hub-height for the 180°-case compared to the 0°-case, and turbulence intensities increase by nearly a factor of 2. These impacts diminish with decreasing wave age; Stratification increases hub height wind speeds and increases the vertical shear of the mean wind across the rotor plane. Fortuitously, this stability-induced enhanced shear does not influence turbulence intensity at hub height, but does increase (decrease) turbulence intensity below (above) hub height. Increased stability also increases the wave-induced pressure stress by ~ 10%; Off the East Coast of the United States during Coupled Boundary Layers Air-Sea Transfer - Low Wind (CBLAST-Low), cases with short fetch include thin stable boundary layers with depths of only a few tens of meters. In the coastal zone, the relationship between the mean wind and the surface fiction velocity (u*(V )) is significantly related to wind direction for weak winds but is not systematically related to the air sea difference of virtual potential temperature, δθv; since waves generally propagate from the south at the Air-Sea Interaction Tower (ASIT) tower, these results suggest that under weak wind conditions waves likely influence surface stress more than stratification does; and Winds and waves are frequently misaligned in the coastal zone. Stability conditions persist for long duration. Over a four year period, the Forschungsplattformen in Nord- und Ostsee Nr. 1 (FINO1) tower (a site with long fetch

  3. Illinois Wind Workers Group

    SciTech Connect

    David G. Loomis

    2012-05-28

    The Illinois Wind Working Group (IWWG) was founded in 2006 with about 15 members. It has grown to over 200 members today representing all aspects of the wind industry across the State of Illinois. In 2008, the IWWG developed a strategic plan to give direction to the group and its activities. The strategic plan identifies ways to address critical market barriers to the further penetration of wind. The key to addressing these market barriers is public education and outreach. Since Illinois has a restructured electricity market, utilities no longer have a strong control over the addition of new capacity within the state. Instead, market acceptance depends on willing landowners to lease land and willing county officials to site wind farms. Many times these groups are uninformed about the benefits of wind energy and unfamiliar with the process. Therefore, many of the project objectives focus on conferences, forum, databases and research that will allow these stakeholders to make well-educated decisions.

  4. Offshore Wind Project Surges Ahead in South Carolina

    Energy.gov [DOE]

    The Center for Marine and Wetland Studies studies wind speed data from buoys, which have been measuring wind speed and direction for the past year.

  5. Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Wind The U.S. wind energy industry continued its strong growth in 2015, adding new generating capacity faster than any other source of electricity generation. Get the latest update on the state of the industry in our 2015 Wind Market Reports. The U.S. wind energy industry continued its strong growth in 2015, adding new generating capacity faster than any other source of electricity generation. Get the latest update on the state of the industry in our 2015 Wind Market Reports. The United

  6. Cisco Wind Energy Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cisco Wind Energy Wind Farm Jump to: navigation, search Name Cisco Wind Energy Wind Farm Facility Cisco Wind Energy Sector Wind energy Facility Type Commercial Scale Wind Facility...

  7. Wind Power

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe ...

  8. Wind Farm

    Energy.gov [DOE]

    The wind farm in Greensburg, Kansas, was completed in spring 2010, and consists of ten 1.25 megawatt (MW) wind turbines that supply enough electricity to power every house, business, and municipal...

  9. Wind Easements

    Energy.gov [DOE]

    The statutes authorizing the creation of wind easements include several provisions to protect property owners. For example, a wind easement may not make the property owner liable for any property...

  10. Wind Measurements from Arc Scans with Doppler Wind Lidar

    DOE PAGES [OSTI]

    Wang, H.; Barthelmie, R. J.; Clifton, Andy; Pryor, S. C.

    2015-11-25

    When defining optimal scanning geometries for scanning lidars for wind energy applications, we found that it is still an active field of research. Our paper evaluates uncertainties associated with arc scan geometries and presents recommendations regarding optimal configurations in the atmospheric boundary layer. The analysis is based on arc scan data from a Doppler wind lidar with one elevation angle and seven azimuth angles spanning 30° and focuses on an estimation of 10-min mean wind speed and direction. When flow is horizontally uniform, this approach can provide accurate wind measurements required for wind resource assessments in part because of itsmore » high resampling rate. Retrieved wind velocities at a single range gate exhibit good correlation to data from a sonic anemometer on a nearby meteorological tower, and vertical profiles of horizontal wind speed, though derived from range gates located on a conical surface, match those measured by mast-mounted cup anemometers. Uncertainties in the retrieved wind velocity are related to high turbulent wind fluctuation and an inhomogeneous horizontal wind field. Moreover, the radial velocity variance is found to be a robust measure of the uncertainty of the retrieved wind speed because of its relationship to turbulence properties. It is further shown that the standard error of wind speed estimates can be minimized by increasing the azimuthal range beyond 30° and using five to seven azimuth angles.« less

  11. Wind Measurements from Arc Scans with Doppler Wind Lidar

    SciTech Connect

    Wang, H.; Barthelmie, R. J.; Clifton, Andy; Pryor, S. C.

    2015-11-25

    When defining optimal scanning geometries for scanning lidars for wind energy applications, we found that it is still an active field of research. Our paper evaluates uncertainties associated with arc scan geometries and presents recommendations regarding optimal configurations in the atmospheric boundary layer. The analysis is based on arc scan data from a Doppler wind lidar with one elevation angle and seven azimuth angles spanning 30° and focuses on an estimation of 10-min mean wind speed and direction. When flow is horizontally uniform, this approach can provide accurate wind measurements required for wind resource assessments in part because of its high resampling rate. Retrieved wind velocities at a single range gate exhibit good correlation to data from a sonic anemometer on a nearby meteorological tower, and vertical profiles of horizontal wind speed, though derived from range gates located on a conical surface, match those measured by mast-mounted cup anemometers. Uncertainties in the retrieved wind velocity are related to high turbulent wind fluctuation and an inhomogeneous horizontal wind field. Moreover, the radial velocity variance is found to be a robust measure of the uncertainty of the retrieved wind speed because of its relationship to turbulence properties. It is further shown that the standard error of wind speed estimates can be minimized by increasing the azimuthal range beyond 30° and using five to seven azimuth angles.

  12. Atmosphere to Electrons: Enabling the Wind Plant of Tomorrow

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... measures wind speed and wind direction offshore at turbine hub-height and across the blade span. ... In simulations of existing wind farms, increases in energy capture of 3% have ...

  13. Methods and apparatus for reducing peak wind turbine loads

    DOEpatents

    Moroz, Emilian Mieczyslaw

    2007-02-13

    A method for reducing peak loads of wind turbines in a changing wind environment includes measuring or estimating an instantaneous wind speed and direction at the wind turbine and determining a yaw error of the wind turbine relative to the measured instantaneous wind direction. The method further includes comparing the yaw error to a yaw error trigger that has different values at different wind speeds and shutting down the wind turbine when the yaw error exceeds the yaw error trigger corresponding to the measured or estimated instantaneous wind speed.

  14. Wind Resource Assessment and Characterization | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Resource Assessment and Characterization Wind Resource Assessment and Characterization A crucial factor in the development, siting, and operation of a wind farm is the ability to assess and characterize available wind resources. The Wind Program supports efforts to accurately define, measure, and forecast the nation's land-based and offshore wind resources. More accurate prediction and measurement of wind speed and direction allow wind farms to supply clean, renewable power to businesses and

  15. Currituck County- Wind Energy Systems Ordinance

    Energy.gov [DOE]

    In January 2008, Currituck County adopted an ordinance to regulate the use of wind-energy systems. The ordinance directs any individual or organization wishing to install a wind-energy system to...

  16. Wind farm array wake losses

    SciTech Connect

    Baker, R.W.; McCarthy, E.F.

    1997-12-31

    A wind turbine wake study was conducted in the summer of 1987 at an Altamont Pass wind electric generating facility. The wind speed deficits, turbulence, and power deficits from an array consisting of several rows of wind turbines is discussed. A total of nine different test configurations were evaluated for a downwind spacing ranging from 7 rotor diameters (RD) to 34 RD and a cross wind spacing of 1.3 RD and 2.7 RD. Wake power deficits of 15% were measured at 16 RD and power losses of a few percent were even measurable at 27 RD for the closer cross wind spacing. For several rows of turbines separated by 7-9 RD the wake zones overlapped and formed compound wakes with higher velocity deficits. The wind speed and direction turbulence in the wake was much higher than the ambient turbulence. The results from this study are compared to the findings from other similar field measurements.

  17. Primary zone air proportioner

    DOEpatents

    Cleary, Edward N. G.

    1982-10-12

    An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

  18. Wind Energy Projects | Department of Energy

    Energy.gov [DOE] (indexed site)

    Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy Projects Wind Energy ...

  19. Wind Power Forecasting Data

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Operations Call 2012 Retrospective Reports 2012 Retrospective Reports 2011 Smart Grid Wind Integration Wind Integration Initiatives Wind Power Forecasting Wind Projects Email...

  20. NREL: Wind Research - Wind Career Map Shows Wind Industry Career...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Career Map Shows Wind Industry Career Opportunities, Paths A screenshot of the wind career map showing the various points on a chart that show different careers in the wind...

  1. Wind News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  2. Offshore Wind

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  3. wind turbines

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  4. Wind Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  5. Wind Workshop

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Workshop - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy ...

  6. Wind Power Partners '94 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    4 Wind Farm Jump to: navigation, search Name Wind Power Partners '94 Wind Farm Facility Wind Power Partners '94 Sector Wind energy Facility Type Commercial Scale Wind Facility...

  7. Wethersfield Wind Power Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wethersfield Wind Power Wind Farm Jump to: navigation, search Name Wethersfield Wind Power Wind Farm Facility Wethersfield Wind Power Sector Wind energy Facility Type Commercial...

  8. State Fair Wind Energy Education Center Wind Farm | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Fair Wind Energy Education Center Wind Farm Jump to: navigation, search Name State Fair Wind Energy Education Center Wind Farm Facility Wind Energy Education Center Sector Wind...

  9. Portsmouth Abbey School Wind Turbine Wind Farm | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Abbey School Wind Turbine Wind Farm Jump to: navigation, search Name Portsmouth Abbey School Wind Turbine Wind Farm Facility Portsmouth Abbey School Wind Turbine Sector Wind energy...

  10. Harbec Plastic Wind Turbine Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Harbec Plastic Wind Turbine Wind Farm Jump to: navigation, search Name Harbec Plastic Wind Turbine Wind Farm Facility Harbec Plastic Wind Turbine Sector Wind energy Facility Type...

  11. Stetson Wind Expansion Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Stetson Wind Expansion Wind Farm Jump to: navigation, search Name Stetson Wind Expansion Wind Farm Facility Stetson Wind Expansion Sector Wind energy Facility Type Commercial Scale...

  12. INTERAGENCY FIELD TEST & EVALUATION OF WIND TURBINE - RADAR INTERFEREN...

    Energy.gov [DOE] (indexed site)

    field tests designed to measure the impact of wind turbines on current air surveillance radars and the effectiveness of private sector technologies in mitigating that interference. ...

  13. Baseline air quality study at Fermilab

    SciTech Connect

    Dave, M.J.; Charboneau, R.

    1980-10-01

    Air quality and meteorological data collected at Fermi National Accelerator Laboratory are presented. The data represent baseline values for the pre-construction phase of a proposed coal-gasification test facility. Air quality data were characterized through continuous monitoring of gaseous pollutants, collection of meteorological data, data acquisition and reduction, and collection and analysis of discrete atmospheric samples. Seven air quality parameters were monitored and recorded on a continuous real-time basis: sulfur dioxide, ozone, total hydrocarbons, nonreactive hydrocarbons, nitric oxide, nitrogen oxides, and carbon monoxide. A 20.9-m tower was erected near Argonne's mobile air monitoring laboratory, which was located immediately downwind of the proposed facility. The tower was instrumented at three levels to collect continuous meteorological data. Wind speed was monitored at three levels; wind direction, horizontal and vertical, at the top level; ambient temperature at the top level; and differential temperature between all three levels. All continuously-monitored parameters were digitized and recorded on magnetic tape. Appropriate software was prepared to reduce the data. Statistical summaries, grphical displays, and correlation studies also are presented.

  14. NREL: Wind Research - Offshore Wind Research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL's Offshore Wind Testing Capabilities 35 years of wind turbine testing experience ... Testing Applying 35 years of wind turbine testing expertise, NREL has developed ...

  15. NREL: Wind Research - Offshore Wind Turbine Research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Offshore Wind Turbine Research Photo of a European offshore wind farm. Photo by Siemens ... NREL's offshore wind turbine research capabilities focus on critical areas that reflect ...

  16. NREL: Wind Research - Offshore Wind Resource Characterization

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Resource Characterization Map of the United States, showing the wind potential of offshore areas across the country. Enlarge image US offshore wind speed estimates at 90-m ...

  17. NREL: Wind Research - Wind Resource Assessment

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    State Wind Maps International Wind Resource Maps Dynamic Maps, GIS Data, and Analysis Tools Due to the existence of special ... to anticipate wind generation levels and adjust the ...

  18. Wind Siting Rules and Model Small Wind Ordinance

    Energy.gov [DOE]

    In September 2009, the Governor of Wisconsin signed S.B. 185 (Act 40) directing the Wisconsin Public Service Commission (PSC) to establish statewide wind energy siting rules. PSC Docket 1-AC-231...

  19. Jet spoiler arrangement for wind turbine

    DOEpatents

    Cyrus, Jack D.; Kadlec, Emil G.; Klimas, Paul C.

    1985-01-01

    An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the ends thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby inducing stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.

  20. Jet spoiler arrangement for wind turbine

    SciTech Connect

    Cyrus, J.D.; Kadlec, E.G.; Klimas, P.C.

    1983-09-15

    An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the end thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby including stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.

  1. Jet spoiler arrangement for wind turbine

    SciTech Connect

    Cyrus, J. D.; Kadlec, E. G.; Klimas, P. C.

    1985-03-12

    An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the ends thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby inducing stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.

  2. Danielson Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Danielson Wind Facility Danielson Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Juhl Wind...

  3. Kawailoa Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Kawailoa Wind Facility Kawailoa Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  4. Palouse Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Palouse Wind Facility Palouse Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  5. Harbor Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Harbor Wind Facility Harbor Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Harbor Wind LLC...

  6. Kahuku Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Kahuku Wind Jump to: navigation, search Name Kahuku Wind Facility Kahuku Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  7. Wiota Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wiota Wind Jump to: navigation, search Name Wiota Wind Facility Wiota Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Wiota Wind Energy LLC...

  8. Bravo Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Bravo Wind Jump to: navigation, search Name Bravo Wind Facility Bravo Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status Proposed Developer Bravo Wind LLC...

  9. Auwahi Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Auwahi Wind Jump to: navigation, search Name Auwahi Wind Facility Auwahi Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner BP Wind Energy...

  10. Traer Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Traer Wind Jump to: navigation, search Name Traer Wind Facility Traer Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Norsemen Wind Energy LLC...

  11. Sheffield Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Sheffield Wind Facility Sheffield Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  12. Rollins Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Rollins Wind Facility Rollins Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  13. Wyoming Wind Power Project (generation/wind)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Power > Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Wyoming Wind Power Project (Foote Creek Rim I and II) Thumbnail image of wind...

  14. Establishing a Comprehensive Wind Energy Program

    SciTech Connect

    Fleeter, Sanford

    2012-09-30

    This project was directed at establishing a comprehensive wind energy program in Indiana, including both educational and research components. A graduate/undergraduate course ME-514 - Fundamentals of Wind Energy has been established and offered and an interactive prediction of VAWT performance developed. Vertical axis wind turbines for education and research have been acquired, instrumented and installed on the roof top of a building on the Calumet campus and at West Lafayette (Kepner Lab). Computational Fluid Dynamics (CFD) calculations have been performed to simulate these urban wind environments. Also, modal dynamic testing of the West Lafayette VAWT has been performed and a novel horizontal axis design initiated. The 50-meter meteorological tower data obtained at the Purdue Beck Agricultural Research Center have been analyzed and the Purdue Reconfigurable Micro Wind Farm established and simulations directed at the investigation of wind farm configurations initiated. The virtual wind turbine and wind turbine farm simulation in the Visualization Lab has been initiated.

  15. Offshore Wind Power USA

    Energy.gov [DOE]

    The Offshore Wind Power USA conference provides the latest offshore wind market updates and forecasts.

  16. Distributed Wind Energy in Idaho

    SciTech Connect

    Gardner, John; Ferguson, James; Ahmed-Zaid, Said; Johnson, Kathryn; Haynes, Todd; Bennett, Keith

    2009-01-31

    Project Objective: This project is a research and development program aimed at furthering distributed wind technology. In particular, this project addresses some of the barriers to distributed wind energy utilization in Idaho. Background: At its core, the technological challenge inherent in Wind Energy is the transformation of a highly variable form of energy to one which is compatible with the commercial power grid or another useful application. A major economic barrier to the success of distributed wind technology is the relatively high capital investment (and related long payback periods) associated with wind turbines. This project will carry out fundamental research and technology development to address both the technological and economic barriers. • Active drive train control holds the potential to improve the overall efficiency of a turbine system by allowing variable speed turbine operation while ensuring a tight control of generator shaft speed, thus greatly simplifying power conditioning. • Recent blade aerodynamic advancements have been focused on large, utility-scale wind turbine generators (WTGs) as opposed to smaller WTGs designed for distributed generation. Because of Reynolds Number considerations, blade designs do not scale well. Blades which are aerodynamically optimized for distributed-scale WTGs can potentially reduce the cost of electricity by increasing shaft-torque in a given wind speed. • Grid-connected electric generators typically operate at a fixed speed. If a generator were able to economically operate at multiple speeds, it could potentially convert more of the wind’s energy to electricity, thus reducing the cost of electricity. This research directly supports the stated goal of the Wind and Hydropower Technologies Program for Distributed Wind Energy Technology: By 2007, reduce the cost of electricity from distributed wind systems to 10 to 15 cents/kWh in Class 3 wind resources, the same level

  17. Method and apparatus for wind turbine braking

    DOEpatents

    Barbu, Corneliu; Teichmann, Ralph; Avagliano, Aaron; Kammer, Leonardo Cesar; Pierce, Kirk Gee; Pesetsky, David Samuel; Gauchel, Peter

    2009-02-10

    A method for braking a wind turbine including at least one rotor blade coupled to a rotor. The method includes selectively controlling an angle of pitch of the at least one rotor blade with respect to a wind direction based on a design parameter of a component of the wind turbine to facilitate reducing a force induced into the wind turbine component as a result of braking.

  18. How Distributed Wind Works | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    How Distributed Wind Works How Distributed Wind Works Your browser does not support iframes. Distributed wind energy systems are commonly installed on, but are not limited to, residential, agricultural, commercial, industrial, and community sites, and can range in size from a 5-kilowatt turbine at a home to a multi-megawatt (MW) turbine at a manufacturing facility. Distributed wind systems are connected on the customer side of the meter to meet the onsite load or directly to distribution or

  19. Collegiate Wind Competition Teams | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Teams Collegiate Wind Competition Teams Ten returning teams are gearing up for participation in the Collegiate Wind Competition 2017 Technical Challenge, being held at the National Wind Technology Center in Boulder, Colorado on April 20-22, 2017. Teams that competed in the 2016 competition were asked to expand the capability of their turbine to operate in a multi-directional wind environment, conceptually to allow turbine yaw. This can be in the form of an updated turbine from the 2016 event or

  20. Wind speed forecasting in the central California wind resource area

    SciTech Connect

    McCarthy, E.F.

    1997-12-31

    A wind speed forecasting program was implemented in the summer seasons of 1985 - 87 in the Central California Wind Resource Area (WRA). The forecasting program is designed to use either meteorological observations from the WRA and local upper air observations or upper air observations alone to predict the daily average windspeed at two locations. Forecasts are made each morning at 6 AM and are valid for a 24 hour period. Ease of use is a hallmark of the program as the daily forecast can be made using data entered into a programmable HP calculator. The forecasting program was the first step in a process to examine whether the electrical energy output of an entire wind power generation facility or defined subsections of the same facility could be predicted up to 24 hours in advance. Analysis of the results of the summer season program using standard forecast verification techniques show the program has skill over persistence and climatology.

  1. Coastal Ohio Wind Project

    SciTech Connect

    Gorsevski, Peter; Afjeh, Abdollah; Jamali, Mohsin; Bingman, Verner

    2014-04-04

    to collect additional monitoring parameters such as passage rates, flight paths, flight directions, and flight altitudes of nocturnal migrating species. Our work focused on the design and development of custom built marine radar that used t-bar and parabolic dish antennas. The marine radar used in the project was Furuno (XANK250) which was coupled with a XIR3000B digitizing card from Russell Technologies for collection of the radar data. The radar data was processed by open source radR processing software using different computational techniques and methods. Additional data from thermal IR imaging cameras were collected to detect heat emitted from objects and provide information on movements of birds and bats, data which we used for different animal flight behavior analysis. Lastly, the data from the acoustic recorders were used to provide the number of bird calls for assessing patterns and peak passage rates during migration. The development of the geospatial database included collection of different data sources that are used to support offshore wind turbine development. Many different data sets were collected and organized using initial version of web-based repository software tools that can accommodate distribution of rectified pertinent data sets such as the lake depth, lake bottom engineering parameters, extent of ice, navigation pathways, wind speed, important bird habitats, fish efforts and other layers that are relevant for supporting robust offshore wind turbine developments. Additional geospatial products developed during the project included few different prototypes for offshore wind farm suitability which can involve different stakeholders and participants for solving complex planning problems and building consensus. Some of the prototypes include spatial decision support system (SDSS) for collaborative decision making, a web-based Participatory Geographic Information System (PGIS) framework for evaluating importance of different decision alternatives

  2. Wind Turbine Generator System Power Performance Test Report for the ARE442 Wind Turbine

    SciTech Connect

    van Dam, J.; Jager, D.

    2010-02-01

    This report summarizes the results of a power performance test that NREL conducted on the ARE 442 wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 12: Power Performance Measurements of Electricity Producing Wind Turbines, IEC 61400-12-1 Ed.1.0, 2005-12. However, because the ARE 442 is a small turbine as defined by IEC, NREL also followed Annex H that applies to small wind turbines. In these summary results, wind speed is normalized to sea-level air density.

  3. Quantifying error of lidar and sodar Doppler beam swinging measurements of wind turbine wakes using computational fluid dynamics

    SciTech Connect

    Lundquist, J. K.; Churchfield, M. J.; Lee, S.; Clifton, A.

    2015-02-23

    Wind-profiling lidars are now regularly used in boundary-layer meteorology and in applications such as wind energy and air quality. Lidar wind profilers exploit the Doppler shift of laser light backscattered from particulates carried by the wind to measure a line-of-sight (LOS) velocity. The Doppler beam swinging (DBS) technique, used by many commercial systems, considers measurements of this LOS velocity in multiple radial directions in order to estimate horizontal and vertical winds. The method relies on the assumption of homogeneous flow across the region sampled by the beams. Using such a system in inhomogeneous flow, such as wind turbine wakes or complex terrain, will result in errors.

    To quantify the errors expected from such violation of the assumption of horizontal homogeneity, we simulate inhomogeneous flow in the atmospheric boundary layer, notably stably stratified flow past a wind turbine, with a mean wind speed of 6.5 m s-1 at the turbine hub-height of 80 m. This slightly stable case results in 15° of wind direction change across the turbine rotor disk. The resulting flow field is sampled in the same fashion that a lidar samples the atmosphere with the DBS approach, including the lidar range weighting function, enabling quantification of the error in the DBS observations. The observations from the instruments located upwind have small errors, which are ameliorated with time averaging. However, the downwind observations, particularly within the first two rotor diameters downwind from the wind turbine, suffer from errors due to the heterogeneity of the wind turbine wake. Errors in the stream-wise component of the flow approach 30% of the hub-height inflow wind speed close to the rotor disk. Errors in the cross-stream and vertical velocity components are also significant: cross-stream component errors are on the order of 15% of the hub-height inflow wind speed (1.0 m s−1) and errors in the vertical velocity measurement

  4. Quantifying error of lidar and sodar Doppler beam swinging measurements of wind turbine wakes using computational fluid dynamics

    DOE PAGES [OSTI]

    Lundquist, J. K.; Churchfield, M. J.; Lee, S.; Clifton, A.

    2015-02-23

    Wind-profiling lidars are now regularly used in boundary-layer meteorology and in applications such as wind energy and air quality. Lidar wind profilers exploit the Doppler shift of laser light backscattered from particulates carried by the wind to measure a line-of-sight (LOS) velocity. The Doppler beam swinging (DBS) technique, used by many commercial systems, considers measurements of this LOS velocity in multiple radial directions in order to estimate horizontal and vertical winds. The method relies on the assumption of homogeneous flow across the region sampled by the beams. Using such a system in inhomogeneous flow, such as wind turbine wakes ormore » complex terrain, will result in errors. To quantify the errors expected from such violation of the assumption of horizontal homogeneity, we simulate inhomogeneous flow in the atmospheric boundary layer, notably stably stratified flow past a wind turbine, with a mean wind speed of 6.5 m s-1 at the turbine hub-height of 80 m. This slightly stable case results in 15° of wind direction change across the turbine rotor disk. The resulting flow field is sampled in the same fashion that a lidar samples the atmosphere with the DBS approach, including the lidar range weighting function, enabling quantification of the error in the DBS observations. The observations from the instruments located upwind have small errors, which are ameliorated with time averaging. However, the downwind observations, particularly within the first two rotor diameters downwind from the wind turbine, suffer from errors due to the heterogeneity of the wind turbine wake. Errors in the stream-wise component of the flow approach 30% of the hub-height inflow wind speed close to the rotor disk. Errors in the cross-stream and vertical velocity components are also significant: cross-stream component errors are on the order of 15% of the hub-height inflow wind speed (1.0 m s−1) and errors in the vertical velocity measurement exceed the actual

  5. Grid Integration of Offshore Wind | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Grid Integration of Offshore Wind Much can be learned from the existing land-based integration research for handling the variability and uncertainty of the wind resource. Photograph of a wind turbine in the ocean. Located about 10 kilometers off the coast of Arklow, Ireland, the Arklow Bank offshore wind park consists of seven GE Wind 3.6-MW wind turbines. Integration and Transmission One comprehensive grid integration study is the Eastern Wind Integration and Transmission Study (EWITS), in

  6. Wind Power Plant Prediction by Using Neural Networks: Preprint

    SciTech Connect

    Liu, Z.; Gao, W.; Wan, Y. H.; Muljadi, E.

    2012-08-01

    This paper introduces a method of short-term wind power prediction for a wind power plant by training neural networks based on historical data of wind speed and wind direction. The model proposed is shown to achieve a high accuracy with respect to the measured data.

  7. Wind Measurement Buoy Advances Offshore Wind Energy | Department...

    Energy Saver

    Measurement Buoy Advances Offshore Wind Energy Wind Measurement Buoy Advances Offshore Wind Energy December 7, 2015 - 1:52pm Addthis Wind Measurement Buoy Advances Offshore Wind ...

  8. Milford Wind Corridor Phase I (Clipper) Wind Farm | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Clipper) Wind Farm Jump to: navigation, search Name Milford Wind Corridor Phase I (Clipper) Wind Farm Facility Milford Wind Corridor Phase I (Clipper) Sector Wind energy Facility...

  9. Doppler Lidar Wind Value-Added Product

    SciTech Connect

    Newsom, R. K.; Sivaraman, C.; Shippert, T. R.; Riihimaki, L. D.

    2015-07-01

    Wind speed and direction, together with pressure, temperature, and relative humidity, are the most fundamental atmospheric state parameters. Accurate measurement of these parameters is crucial for numerical weather prediction. Vertically resolved wind measurements in the atmospheric boundary layer are particularly important for modeling pollutant and aerosol transport. Raw data from a scanning coherent Doppler lidar system can be processed to generate accurate height-resolved measurements of wind speed and direction in the atmospheric boundary layer.

  10. Collegiate Wind Competition Sponsors | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sponsors Collegiate Wind Competition Sponsors The U.S. Department of Energy (DOE) Collegiate Wind Competition is grateful for the generosity of sponsors to support a successful event and a positive experience for teams. Sponsorship Options Collegiate Wind Competition sponsorship options include: Team Sponsorship-Work directly with individual collegiate teams to support them with in-kind donations, cash contributions, resources, etc. Teams may be contacted directly for donations. Event

  11. Air modeling of industrial area in India

    SciTech Connect

    Kumar, A.

    1996-12-31

    With privatization of power sector to fulfill power demand in India, fossil based power projects are proposed at different locations by Indian and foreign companies. As power industry occupies key role in the economic liberalization, the siting and technology for power plant are relevant in the Indian context, and modeling exercise is wanted for the design of stacks and pollution control measures. A case history is included to demonstrate the use of air quality modeling in prediction, and to delineate mitigation measures. Study has been conducted with Gaussian dispersion model to assess the incremental 24 hour maximum Ground Level Concentrations (GLCs) of SO{sub 2}, NO{sub x}, SPM due to proposed power plant. Stack and emission data, wind velocity, wind direction, temperature, mixing height, and stability classes are used as input parameters to the dispersion model. Maximum 24 hour GLCs of SO{sub 2}, NO{sub x}, and SPM are 30, 53, 2.5 {mu}g/m at 2 km east as down wind direction is from west (35%), south-southwest (25%), and west-northwest (15%). Northeast is the most affected quadrant during summer. Plume loopings are assessed from southeast to northeast directions, with maximum concentration in the east with respect to the site. First plume loop is assessed at 2 km distance, and subsequent loops are assessed with less pollutants concentration under atmospheric stability classes (B-E). High concentration of NO{sub x} has been assessed, which may cause hazardous effect like dense fog, particulate droplets, whereas SO{sub 2} concentration may cause acid raining, acid deposition to the surrounding. Proper air pollution control measures are required to minimize NO{sub x} levels.

  12. Performance of a new wind updating system for a prognostic meteorological model in the environs of Mexico City

    SciTech Connect

    Williams, M.D.

    1993-12-31

    Los Alamos National Laboratory and Institute Mexicano del Petroleo are completely a joint study of options for improving air quality in Mexico City. The US Department of Energy supported the efforts of the Los Alamos investigators, while PEMEX supported the efforts of the Mexican researchers. One of the first steps in the process was to develop an understanding of the existing air quality situation. In this context we have modified a three-dimensional, prognostic, higher order turbulence model for atmospheric circulation (HOTMAC) to treat domains which include an urbanized area. This sophisticated meteorological model is required because of the complexity of the terrain and the relative paucity of meteorological data. Mexico City lies at an elevation of approximately 7500 feet above sea level in a ``U`` shaped basin which opens to the north. The city occupies a major part of the southwest portion of the basin. Upper level winds are provided by rawinsondes at the airport, while low-level winds are measured at several sites within the city. Many of the sites have obstructed upwind fetches for a variety of directions. During the wintertime when the worst air quality episodes occur, the winds are frequently light, and out of the northeast at lower levels, while above 1000 meters above the surface they are usually from the southwest. This means the winds are light within the city, but significant slope winds develop which influence the behavior of the pollutants. Frequently, the winds in the basin change as a seabreeze penetrates the basin from the northeast. The seabreeze produces a much different wind regime after its arrival in the late afternoon or early evening. This makes it important to update the winds in a realistic fashion.

  13. Michigan Wind II Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    II Wind Farm Jump to: navigation, search Name Michigan Wind II Wind Farm Facility Michigan Wind II Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  14. Metro Wind LLC Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind LLC Wind Farm Jump to: navigation, search Name Metro Wind LLC Wind Farm Facility Metro Wind LLC Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  15. JD Wind 6 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    JD Wind 6 Wind Farm Jump to: navigation, search Name JD Wind 6 Wind Farm Facility JD Wind 6 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  16. JD Wind 7 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    JD Wind 7 Wind Farm Jump to: navigation, search Name JD Wind 7 Wind Farm Facility JD Wind 7 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  17. Garnet Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Garnet Wind Facility Garnet Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Azusa Light & Water...

  18. Lime Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Lime Wind Facility Lime Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Joseph Millworks Inc...

  19. Fairhaven Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Fairhaven Wind Facility Fairhaven Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Solaya Energy Palmer...

  20. Scituate Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Scituate Wind Facility Scituate Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Solaya Energy ...

  1. Pacific Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Pacific Wind Facility Pacific Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner enXco Developer...

  2. Galactic Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Galactic Wind Facility Galactic Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Epic Systems...

  3. Rockland Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Rockland Wind Facility Rockland Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Ridgeline...

  4. Greenfield Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump to: navigation, search Name Greenfield Wind Facility Greenfield Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Greenfield Wind Power...

  5. Willmar Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name Willmar Wind Facility Willmar Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Willmar...

  6. Wind Program News

    SciTech Connect

    2012-01-06

    Stay current on the news about the wind side of the Wind and Water Power Program and important wind energy events around the U.S.

  7. Energy 101: Wind Turbines

    ScienceCinema

    None

    2016-07-12

    See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine.

  8. Energy 101: Wind Turbines

    SciTech Connect

    2011-01-01

    See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine.

  9. Wind turbine

    DOEpatents

    Cheney, Jr., Marvin C.

    1982-01-01

    A wind turbine of the type having an airfoil blade (15) mounted on a flexible beam (20) and a pitch governor (55) which selectively, torsionally twists the flexible beam in response to wind turbine speed thereby setting blade pitch, is provided with a limiter (85) which restricts unwanted pitch change at operating speeds due to torsional creep of the flexible beam. The limiter allows twisting of the beam by the governor under excessive wind velocity conditions to orient the blades in stall pitch positions, thereby preventing overspeed operation of the turbine. In the preferred embodiment, the pitch governor comprises a pendulum (65,70) which responds to changing rotor speed by pivotal movement, the limiter comprising a resilient member (90) which engages an end of the pendulum to restrict further movement thereof, and in turn restrict beam creep and unwanted blade pitch misadjustment.

  10. Prototype Systems for Measuring Outdoor Air Intake Rates in Rooftop Air Handlers

    SciTech Connect

    Fisk, William J.; Chan, Wanyu R.; Hotchi, Toshifumi

    2015-01-01

    The widespread absence of systems for real-time measurement and feedback control, of minimum outdoor air intake rates in HVAC systems contributes to the poor control of ventilation rates in commercial buildings. Ventilation rates affect building energy consumption and influence occupant health. The project designed fabricated and tested four prototypes of systems for measuring rates of outdoor air intake into roof top air handlers. All prototypes met the ±20% accuracy target at low wind speeds, with all prototypes accurate within approximately ±10% after application of calibration equations. One prototype met the accuracy target without a calibration. With two of four prototype measurement systems, there was no evidence that wind speed or direction affected accuracy; however, winds speeds were generally below usually 3.5 m s-1 (12.6 km h-1) and further testing is desirable. The airflow resistance of the prototypes was generally less than 35 Pa at maximum RTU air flow rates. A pressure drop of this magnitude will increase fan energy consumption by approximately 4%. The project did not have resources necessary to estimate costs of mass produced systems. The retail cost of components and materials used to construct prototypes ranged from approximately $1,200 to $1,700. The test data indicate that the basic designs developed in this project, particularly the designs of two of the prototypes, have considerable merit. Further design refinement, testing, and cost analysis would be necessary to fully assess commercial potential. The designs and test results will be communicated to the HVAC manufacturing community.

  11. Wind Turbine Control Systems | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL is researching new control methodologies for both land-based wind turbines and offshore wind turbines. A photo of a wind turbine against blue sky with white blades on their ...

  12. NREL: Wind Research - Site Wind Resource Characteristics

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Site Wind Resource Characteristics A graphic showing the location of National Wind Technology Center and its wind power class 2. Click on the image to view a larger version. ...

  13. Property:Wave Direction | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wave Basin + Uni-Directional + Lakefront Tow Tank + Uni-Directional + Los Angeles and Long Beach Harbors Model + Uni-Directional + M MHL 2D WindWave + Uni-Directional + MHL...

  14. Compressed Air

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lighting Compressed Air ESUE Motors Federal Agriculture Compressed Air Compressed Air Roadmap The Bonneville Power Administration created the roadmap to help utilities find energy...

  15. Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Science & Innovation Energy Sources Renewable Energy Wind Wind Wind The United States is home to one of the largest and fastest growing wind markets in the world. To stay ...

  16. Offshore Wind Resource Characterization | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Resource Characterization NREL scientists and engineers are leading efforts in ... and development, and forecasting that are essential for the development of offshore wind. ...

  17. Wind Integration National Dataset (WIND) Toolkit

    Office of Energy Efficiency and Renewable Energy (EERE)

    For utility companies, grid operators and other stakeholders interested in wind energy integration, collecting large quantities of high quality data on wind energy resources is vitally important....

  18. NREL: Wind Research - Wind Energy Videos

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Energy Videos The National Wind Technology Center (NWTC) is pleased to offer video presentations of its world-class capabilities, facilities, research areas, and personnel. As ...

  19. NREL: Wind Research - Small Wind Turbine Development

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Small Wind Turbine Development A photo of Southwest Windpower's Skystream wind turbine in ... Testing included power performance, safety and function, noise, and partial loads tests. ...

  20. EA-1903: Kansas State University Zond Wind Energy Project, Manhattan, Kansas

    Energy.gov [DOE]

    This EA evaluates the potential environmental impacts of a proposal to use Congressional Directed funds to develop the Great Plains Wind Energy Consortium aimed at increasing the penetration of wind energy via distributed wind power generation throughout the region.

  1. NREL National Wind Technology Center (NWTC): M2 Tower; Boulder, Colorado (Data)

    DOE Data Explorer

    Jager, D.; Andreas, A.

    The National Wind Technology Center (NWTC), located at the foot of the Rocky Mountains near Boulder, Colorado, is a world-class research facility managed by NREL for the U.S. Department of Energy. NWTC researchers work with members of the wind energy industry to advance wind power technologies that lower the cost of wind energy through research and development of state-of-the-art wind turbine designs. NREL's Measurement and Instrument Data Center provides data from NWTC's M2 tower which are derived from instruments mounted on or near an 82 meter (270 foot) meteorological tower located at the western edge of the NWTC site and about 11 km (7 miles) west of Broomfield, and approximately 8 km (5 miles) south of Boulder, Colorado. The data represent the mean value of readings taken every two seconds and averaged over one minute. The wind speed and direction are measured at six heights on the tower and air temperature is measured at three heights. The dew point temperature, relative humidity, barometric pressure, totalized liquid precipitation, and global solar radiation are also available.

  2. NREL National Wind Technology Center (NWTC): M2 Tower; Boulder, Colorado (Data)

    DOE Data Explorer

    Jager, D.; Andreas, A.

    1996-09-24

    The National Wind Technology Center (NWTC), located at the foot of the Rocky Mountains near Boulder, Colorado, is a world-class research facility managed by NREL for the U.S. Department of Energy. NWTC researchers work with members of the wind energy industry to advance wind power technologies that lower the cost of wind energy through research and development of state-of-the-art wind turbine designs. NREL's Measurement and Instrument Data Center provides data from NWTC's M2 tower which are derived from instruments mounted on or near an 82 meter (270 foot) meteorological tower located at the western edge of the NWTC site and about 11 km (7 miles) west of Broomfield, and approximately 8 km (5 miles) south of Boulder, Colorado. The data represent the mean value of readings taken every two seconds and averaged over one minute. The wind speed and direction are measured at six heights on the tower and air temperature is measured at three heights. The dew point temperature, relative humidity, barometric pressure, totalized liquid precipitation, and global solar radiation are also available.

  3. Environmental continuous air monitor inlet with combined preseparator and virtual impactor

    DOEpatents

    Rodgers, John C.

    2007-06-19

    An inlet for an environmental air monitor is described wherein a pre-separator interfaces with ambient environment air and removes debris and insects commonly associated with high wind outdoors and a deflector plate in communication with incoming air from the pre-separator stage, that directs the air radially and downward uniformly into a plurality of accelerator jets located in a manifold of a virtual impactor, the manifold being cylindrical and having a top, a base, and a wall, with the plurality of accelerator jets being located in the top of the manifold and receiving the directed air and accelerating directed air, thereby creating jets of air penetrating into the manifold, where a major flow is deflected to the walls of the manifold and extracted through ports in the walls. A plurality of receiver nozzles are located in the base of the manifold coaxial with the accelerator jets, and a plurality of matching flow restrictor elements are located in the plurality of receiver nozzles for balancing and equalizing the total minor flow among all the plurality of receiver nozzles, through which a lower, fractional flow extracts large particle constituents of the air for collection on a sample filter after passing through the plurality of receiver nozzles and the plurality of matching flow restrictor elements.

  4. Simulation of winds as seen by a rotating vertical axis wind turbine blade

    SciTech Connect

    George, R.L.

    1984-02-01

    The objective of this report is to provide turbulent wind analyses relevant to the design and testing of Vertical Axis Wind Turbines (VAWT). A technique was developed for utilizing high-speed turbulence wind data from a line of seven anemometers at a single level to simulate the wind seen by a rotating VAWT blade. Twelve data cases, representing a range of wind speeds and stability classes, were selected from the large volume of data available from the Clayton, New Mexico, Vertical Plane Array (VPA) project. Simulations were run of the rotationally sampled wind speed relative to the earth, as well as the tangential and radial wind speeds, which are relative to the rotating wind turbine blade. Spectral analysis is used to compare and assess wind simulations from the different wind regimes, as well as from alternate wind measurement techniques. The variance in the wind speed at frequencies at or above the blade rotation rate is computed for all cases, and is used to quantitatively compare the VAWT simulations with Horizontal Axis Wind Turbine (HAWT) simulations. Qualitative comparisons are also made with direct wind measurements from a VAWT blade.

  5. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. March 17, 2015 Real-time data monitoring ...

  6. Town of Kill Devil Hills- Wind Energy Systems Ordinance

    Energy.gov [DOE]

    In October 2007, the town of Kill Devil Hills adopted an ordinance to regulate the use of wind-energy systems. The ordinance directs any individual or organization wishing to install a wind-energy...

  7. Surface potential distribution and airflow performance of different air-exposed electrode plasma actuators at different alternating current/direct current voltages

    SciTech Connect

    Yang, Liang; Yan, Hui-Jie; Qi, Xiao-Hua; Hua, Yue; Ren, Chun-Sheng

    2015-04-15

    Asymmetric surface dielectric barrier discharge (SDBD) plasma actuators have been intensely studied for a number of years due to their potential applications for aerodynamic control. In this paper, four types of actuators with different configurations of exposed electrode are proposed. The SDBD actuators investigated are driven by dual-power supply, referred to as a fixed AC high voltage and an adjustable DC bias. The effects of the electrode structures on the dielectric surface potential distribution, the electric wind velocity, and the mean thrust production are studied, and the dominative factors of airflow acceleration behavior are revealed. The results have shown that the actions of the SDBD actuator are mainly dependent on the geometry of the exposed electrode. Besides, the surface potential distribution can effectively affect the airflow acceleration behavior. With the application of an appropriate additional DC bias, the surface potential will be modified. As a result, the performance of the electric wind produced by a single SDBD can be significantly improved. In addition, the work also illustrates that the actuators with more negative surface potential present better mechanical performance.

  8. Cogging Torque Reduction in a Permanent Magnet Wind Turbine Generator: Preprint

    SciTech Connect

    Muljadi, E.; Green, J.

    2002-01-01

    In this paper, we investigate three design options to minimize cogging torque: uniformity of air gap, pole width, and skewing. Although the design improvement is intended for small wind turbines, it is also applicable to larger wind turbines.

  9. Coalescing Wind Turbine Wakes

    DOE PAGES [OSTI]

    Lee, S.; Churchfield, M.; Sirnivas, S.; Moriarty, P.; Nielsen, F. G.; Skaare, B.; Byklum, E.

    2015-06-18

    A team of researchers from the National Renewable Energy Laboratory and Statoil used large-eddy simulations to numerically investigate the merging wakes from upstream offshore wind turbines. Merging wakes are typical phenomena in wind farm flows in which neighboring turbine wakes consolidate to form complex flow patterns that are as yet not well understood. In the present study, three 6-MW turbines in a row were subjected to a neutrally stable atmospheric boundary layer flow. As a result, the wake from the farthest upstream turbine conjoined the downstream wake, which significantly altered the subsequent velocity deficit structures, turbulence intensity, and the globalmore » meandering behavior. The complexity increased even more when the combined wakes from the two upstream turbines mixed with the wake generated by the last turbine, thereby forming a "triplet" structure. Although the influence of the wake generated by the first turbine decayed with downstream distance, the mutated wakes from the second turbine continued to influence the downstream wake. Two mirror-image angles of wind directions that yielded partial wakes impinging on the downstream turbines yielded asymmetric wake profiles that could be attributed to the changing flow directions in the rotor plane induced by the Coriolis force. In conclusion, the turbine wakes persisted for extended distances in the present study, which is a result of low aerodynamic surface roughness typically found in offshore conditions« less

  10. Coalescing Wind Turbine Wakes

    SciTech Connect

    Lee, S.; Churchfield, M.; Sirnivas, S.; Moriarty, P.; Nielsen, F. G.; Skaare, B.; Byklum, E.

    2015-06-18

    A team of researchers from the National Renewable Energy Laboratory and Statoil used large-eddy simulations to numerically investigate the merging wakes from upstream offshore wind turbines. Merging wakes are typical phenomena in wind farm flows in which neighboring turbine wakes consolidate to form complex flow patterns that are as yet not well understood. In the present study, three 6-MW turbines in a row were subjected to a neutrally stable atmospheric boundary layer flow. As a result, the wake from the farthest upstream turbine conjoined the downstream wake, which significantly altered the subsequent velocity deficit structures, turbulence intensity, and the global meandering behavior. The complexity increased even more when the combined wakes from the two upstream turbines mixed with the wake generated by the last turbine, thereby forming a "triplet" structure. Although the influence of the wake generated by the first turbine decayed with downstream distance, the mutated wakes from the second turbine continued to influence the downstream wake. Two mirror-image angles of wind directions that yielded partial wakes impinging on the downstream turbines yielded asymmetric wake profiles that could be attributed to the changing flow directions in the rotor plane induced by the Coriolis force. In conclusion, the turbine wakes persisted for extended distances in the present study, which is a result of low aerodynamic surface roughness typically found in offshore conditions

  11. JD Wind 1 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Farm Jump to: navigation, search Name JD Wind 1 Wind Farm Facility JD Wind 1 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner DWSJohn...

  12. North Dakota Wind II Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    II Wind Farm Jump to: navigation, search Name North Dakota Wind II Wind Farm Facility North Dakota Wind II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  13. Venture Wind II Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    II Wind Farm Jump to: navigation, search Name Venture Wind II Wind Farm Facility Venture Wind II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  14. MinWind I & II Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    I & II Wind Farm Jump to: navigation, search Name MinWind I & II Wind Farm Facility MinWind I & II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  15. Cow Branch Wind Energy Center Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cow Branch Wind Energy Center Wind Farm Jump to: navigation, search Name Cow Branch Wind Energy Center Wind Farm Facility Cow Branch Wind Energy Center Sector Wind energy Facility...

  16. JD Wind 5 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    5 Wind Farm Jump to: navigation, search Name JD Wind 5 Wind Farm Facility JD Wind 5 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner John...

  17. JD Wind 4 Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    4 Wind Farm Jump to: navigation, search Name JD Wind 4 Wind Farm Facility JD Wind 4 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner John...

  18. Database on wind characteristics

    SciTech Connect

    Hojstrup, J.; Hansen, K.S.

    1996-12-31

    Wind data with high temporal resolution exist from a variety of sites, and is in demand by windturbine designers and wind engineers. Unfortunately it has always been a problem to gain access to a suitable amount of this data, because they are available from many different sources in different formats and with very different levels of documentation and quality control. We are now in the process of gaining access to a large amount of this type of data, checking the quality of the data and putting the data at the disposition of the windturbine designer community through easy Internet access. Online search will use summary statistics calculated for each series to help in the selection of data. The selected data can then be downloaded directly to the user. 3 figs.

  19. Energy Analysis of Offshore Systems | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Analysis of Offshore Systems NREL has a long history of successful research to understand and improve the cost of wind generation technology. As a research laboratory, NREL is a neutral, third party and can provide an unbiased perspective of methodologies and approaches used to estimate direct and indirect economic impacts of offshore wind. Chart of cost data for actual and projected offshore wind projects as reported by developers. Market Analysis NREL's extensive research on installed

  20. Grid Integration of Wind Energy | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Grid Integration of Wind Energy Researchers study grid integration of wind energy to better understand how variable generation resources such as wind energy impact the grid and how to increase the percentage of wind generation in the United States' energy portfolio. A photo of three wind turbines with transmission lines in the background. Capabilities NREL's grid integration analysts work with the U.S. Department of Energy, university researchers, independent system operators, and regional

  1. Wind Data and Tools | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Data and Tools Learn more about wind energy through these NREL data and tools. A photo of two men silhouetted against a computer-generated simulation with white and blue rows illustrating wind plant aerodynamics. NWTC Information Portal This open-source library houses NREL's wind and water power simulation and modeling software and data, including computer-aided engineering tools and integrated system design and analysis tools. All software is available for download. Wind-Wildlife Impacts

  2. Wind energy systems: program summary

    SciTech Connect

    1980-05-01

    The Federal Wind Energy Program (FWEP) was initiated to provide focus, direction and funds for the development of wind power. Each year a summary is prepared to provide the American public with an overview of government sponsored activities in the FWEP. This program summary describes each of the Department of Energy's (DOE) current wind energy projects initiated or renewed during FY 1979 (October 1, 1978 through September 30, 1979) and reflects their status as of April 30, 1980. The summary highlights on-going research, development and demonstration efforts and serves as a record of progress towards the program objectives. It also provides: the program's general management structure; review of last year's achievements; forecast of expected future trends; documentation of the projects conducted during FY 1979; and list of key wind energy publications.

  3. GL Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    GL Wind Jump to: navigation, search Name GL Wind Facility GL Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner GL Wind Developer Juhl...

  4. Wind Technologies & Evolving Opportunities (Presentation)

    SciTech Connect

    Robichaud, R.

    2014-07-01

    This presentation covers opportunities for wind technology; wind energy market trends; an overview of the National Wind Technology Center near Boulder, Colorado; wind energy price and cost trends; wind turbine technology improvements; and wind resource characterization improvements.

  5. Wind energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind energy (Redirected from Wind power) Jump to: navigation, search Wind energy is a form of solar energy.1 Wind energy (or wind power) describes the process by which wind is...

  6. WINDExchange: Potential Wind Capacity

    WindExchange

    Potential Wind Capacity Potential wind capacity maps are provided for a 2014 industry standard wind turbine installed on a 110-m tower, which represents plausible current technology options, and a wind turbine on a 140-m tower, which represents near-future technology options. For more detailed information regarding the assumptions and calculations behind the wind potential capacity maps, see the Energy Department's Enabling Wind Power Nationwide report. Enlarge image This map shows the wind

  7. 2015 Iowa Wind Power Conference and Iowa Wind Energy Association...

    Office of Environmental Management (EM)

    2015 Iowa Wind Power Conference and Iowa Wind Energy Association Midwest Regional Energy Job Fair 2015 Iowa Wind Power Conference and Iowa Wind Energy Association Midwest Regional...

  8. Brazos Wind Ranch Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Shell Wind EnergyMitsui Developer Cielo Wind PowerOrion Energy Energy Purchaser Green...

  9. Wind tunnel performance data for the Darrieus wind turbine with...

    Office of Scientific and Technical Information (OSTI)

    Wind tunnel performance data for the Darrieus wind turbine with NACA 0012 blades Citation Details In-Document Search Title: Wind tunnel performance data for the Darrieus wind ...

  10. A National Offshore Wind Strategy: Creating an Offshore Wind...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    A National Offshore Wind Strategy: Creating an Offshore Wind Energy Industry in the United States A National Offshore Wind Strategy: Creating an Offshore Wind Energy Industry in ...

  11. 20% Wind Energy by 2030 - Chapter 2: Wind Turbine Technology...

    Energy Saver

    2: Wind Turbine Technology Summary Slides 20% Wind Energy by 2030 - Chapter 2: Wind Turbine Technology Summary Slides Summary slides for wind turbine technology, its challenges, ...

  12. First Wind (Formerly UPC Wind) (Oregon) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    First Wind (Formerly UPC Wind) Address: 1001 S.W. Fifth Avenue Place: Portland, Oregon Zip: 97204 Region: Pacific Northwest Area Sector: Wind energy Product: Wind power developer...

  13. STATIONARITY IN SOLAR WIND FLOWS

    SciTech Connect

    Perri, S.; Balogh, A. E-mail: a.balogh@imperial.ac.u

    2010-05-01

    By using single-point measurements in space physics it is possible to study a phenomenon only as a function of time. This means that we cannot have direct access to information about spatial variations of a measured quantity. However, the investigation of the properties of turbulence and of related phenomena in the solar wind widely makes use of an approximation frequently adopted in hydrodynamics under certain conditions, the so-called Taylor hypothesis; indeed, the solar wind flow has a bulk velocity along the radial direction which is much higher than the velocity of a single turbulent eddy embedded in the main flow. This implies that the time of evolution of the turbulent features is longer than the transit time of the flow through the spacecraft position, so that the turbulent field can be considered frozen into the solar wind flow. This assumption allows one to easily associate time variations with spatial variations and stationarity to homogeneity. We have investigated, applying criteria for weak stationarity to Ulysses magnetic field data in different solar wind regimes, at which timescale and under which conditions the hypothesis of stationarity, and then of homogeneity, of turbulence in the solar wind is well justified. We extend the conclusions of previous studies by Matthaeus and Goldstein to different parameter ranges in the solar wind. We conclude that the stationarity assumption in the inertial range of turbulence on timescales of 10 minutes to 1 day is reasonably satisfied in fast and uniform solar wind flows, but that in mixed, interacting fast, and slow solar wind streams the assumption is frequently only marginally valid.

  14. Northern Cheyenne Tribe - Wind Power Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Northern Cheyenne Tribe Wind Power Project Program Review 2006 Ingrid Gardner Project Overview * Project began in 2002 * Sole decision maker and final authority » NORTHERN CHEYENNE TRIBE * Technical Participant » Distributed Generation Systems, Inc. * Tribal Participant » TRIBAL EDA COMMITTEE » TRIBAL EDA PLANNER Project Design * Development Phase Approach - Long Term Wind Data Collected »RAWS SITE »AIR QUALITY SITES »ON-SITE MET TOWERS 50 meter tower 20 meter tower Project Design Cont. *

  15. AIR RADIOACTIVITY MONITOR

    DOEpatents

    Bradshaw, R.L.; Thomas, J.W.

    1961-04-11

    The monitor is designed to minimize undesirable background buildup. It consists of an elongated column containing peripheral electrodes in a central portion of the column, and conduits directing an axial flow of radioactively contaminated air through the center of the column and pure air through the annular portion of the column about the electrodes. (AEC)

  16. National Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name: National Wind Place: Minneapolis, Minnesota Zip: 55402 Sector: Wind energy Product: Wind project developer in the upper Midwest and Plains...

  17. Solar Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name: Solar Wind Place: Krasnodar, Romania Zip: 350000 Sector: Solar, Wind energy Product: Russia-based PV product manufacturer. Solar Wind...

  18. Wind Energy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Energy Wind Energy Below are resources for Tribes on wind energy technologies. 2012 Market Report on Wind Technologies in Distributed Applications Includes a breakdown of ...

  19. Horn Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name: Horn Wind Place: Windthorst, Texas Zip: 76389 Sector: Wind energy Product: Texas-based company that develops community-based industrial wind...

  20. Royal Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Name: Royal Wind Place: Denver, Colorado Sector: Wind energy Product: Vertical Wind Turbines Year Founded: 2008 Website: www.RoyalWindTurbines.com Coordinates: 39.7391536,...

  1. Coriolis Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Logo: Coriolis Wind Name: Coriolis Wind Place: Great Falls, Virginia Zip: 22066 Product: Mid-Scale Wind Turbine Year Founded: 2007 Website:...

  2. Jasper Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Jump to: navigation, search Name: Jasper Wind Place: Athens, Greece Sector: Solar, Wind energy Product: Athens-based wind and solar project developer. Coordinates: 37.97615,...

  3. WINDExchange: Siting Wind Turbines

    WindExchange

    Deployment Activities Printable Version Bookmark and Share Regional Resource Centers Economic Development Siting Resources & Tools Siting Wind Turbines This page provides resources about wind turbine siting. American Wind Wildlife Institute The American Wind Wildlife Institute (AWWI) facilitates timely and responsible development of wind energy, while protecting wildlife and wildlife habitat. AWWI was created and is sustained by a unique collaboration of environmentalists, conservationists,

  4. Three-dimensional elastic lidar winds

    SciTech Connect

    Buttler, W.T.

    1996-07-01

    Maximum cross-correlation techniques have been used with satellite data to estimate winds and sea surface velocities for several years. Los Alamos National Laboratory (LANL) is currently using a variation of the basic maximum cross-correlation technique, coupled with a deterministic application of a vector median filter, to measure transverse winds as a function of range and altitude from incoherent elastic backscatter lidar data taken throughout large volumes within the atmospheric boundary layer. Hourly representations of three- dimensional wind fields, derived from elastic lidar data taken during an air-quality study performed in a region of complex terrain near Sunland Park, New Mexico, are presented and compared with results from an Environmental Protection Agency (EPA) approved laser doppler velocimeter. The wind fields showed persistent large scale eddies as well as general terrain following winds in the Rio Grande valley.

  5. Direct correlation and strong reduction of native point defects and microwave dielectric loss in air-annealed (Ba,Sr)TiO{sub 3}

    SciTech Connect

    Zeng, Z. Q.; Podpirka, A.; Kirchoefer, S. W.; Asel, T. J.; Brillson, L. J.

    2015-05-04

    We report on the native defect and microwave properties of 1 μm thick Ba{sub 0.50}Sr{sub 0.50}TiO{sub 3} (BST) films grown on MgO (100) substrates by molecular beam epitaxy (MBE). Depth-resolved cathodoluminescence spectroscopy (DRCLS) showed high densities of native point defects in as-deposited BST films, causing strong subgap emission between 2.0 eV and 3.0 eV due to mixed cation V{sub C} and oxygen Vo vacancies. Post growth air anneals reduce these defects with 2.2, 2.65, and 3.0 eV V{sub O} and 2.4 eV V{sub C} intensities decreasing with increasing anneal temperature and by nearly two orders of magnitude after 950 °C annealing. These low-defect annealed BST films exhibited high quality microwave properties, including room temperature interdigitated capacitor tunability of 13% under an electric bias of 40 V and tan δ of 0.002 at 10 GHz and 40 V bias. The results provide a feasible route to grow high quality BST films by MBE through post-air annealing guided by DRCLS.

  6. Power Performance Test Report for the SWIFT Wind Turbine

    SciTech Connect

    Mendoza, I.; Hur, J.

    2012-12-01

    This report summarizes the results of a power performance test that NREL conducted on the SWIFT wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 12: Power Performance Measurements of Electricity Producing Wind Turbines, IEC 61400-12-1 Ed.1.0, 2005-12. However, because the SWIFT is a small turbine as defined by IEC, NREL also followed Annex H that applies to small wind turbines. In these summary results, wind speed is normalized to sea-level air density.

  7. Crow Lake Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

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

  8. Wildcat Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wildcat Ridge Wind Farm Facility Wildcat Ridge Wind Farm Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Midwest Wind Energy Developer Midwest Wind...

  9. Radial Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name Radial Wind Farm Facility Radial Wind Farm Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Radial Wind Developer Radial Wind Location...

  10. NREL: Wind Research - News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Technology Center at NREL provides a number of wind news sources to help you stay up-to-date with its activities, research, and new developments. NREL Wind News See...

  11. Wind Power Today

    SciTech Connect

    Not Available

    2006-05-01

    Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

  12. Wind Power Today

    SciTech Connect

    Not Available

    2007-05-01

    Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

  13. Model Wind Ordinance

    Office of Energy Efficiency and Renewable Energy (EERE)

    In July, 2008 the North Carolina Wind Working Group, a coalition of state government, non-profit and wind industry organizations, published a model wind ordinance to provide guidance for...

  14. Solar and Wind Easements

    Energy.gov [DOE]

    In April 2011, the provisions related to wind easements were repealed by House Bill 295 (2011) and replaced with more extensive wind easements provisions.  This legislation defines wind energy ri...

  15. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  16. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  17. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public. Open full...

  18. Impacts | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Impacts Read about NREL's impacts on innovations in wind energy research. Photo of four men in hard hats standing on top of a large wind turbine overlooking several other wind turbines in the distance. Fact Sheets Wind Energy Benefits thumbnail Wind Energy Benefits Screenshot of the cover of the national wind technology brochure. 35 Years of Innovation: Leading the Way to a Clean Energy Future JEDI: Jobs and Economic Development Impact Model thumbnail JEDI: Jobs and Economic Development Impact

  19. Distributed Wind Ordinances: Slides

    WindExchange

    an introduction to distributed wind projects and a brief overview of topics to consider when developing a distributed wind energy ordinance. Distributed Wind Ordinances Photo from Byers and Renier Construction, NREL 18820 Distributed Wind Ordinances The U.S. Department of Energy defines distributed wind projects as: (a) The use of wind turbines, on- or off-grid, at homes, farms and ranches, businesses, public and industrial facilities, or other sites to offset all or a portion of the local

  20. Wind Energy Integration: Slides

    WindExchange

    information about integrating wind energy into the electricity grid. Wind Energy Integration Photo by Dennis Schroeder, NREL 25907 Wind energy currently contributes significant power to energy portfolios around the world. *U.S. Department of Energy. (August 2015). 2014 Wind Technologies Market Report. Wind Energy Integration In 2014, Denmark led the way with wind power supplying roughly 39% of the country's electricity demand. Ireland, Portugal, and Spain provided more than 20% of their

  1. 2009 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    9 News Below are news stories related to Wind. RSS Learn about RSS. September 14, 2009 IEA Wind Energy 2008 Annual Report Now Available for Free Download The IEA Annual Report for 2008 provides the latest information on wind industries in 20 International Energy Agency (IEA) Wind member countries. August 26, 2009 NWTC Installs Multimegawatt Research Turbines NREL's National Wind Technology Center installed the first of two multimegawatt wind turbines last week to be used for research to advance

  2. Wind Power Reliability Research | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Power Reliability Research The U.S. wind power industry is well established, with nearly 75 gigawatts of installed capacity across the United States. Given this large base of ...

  3. Wind Energy Modeling and Simulation | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Energy Modeling and Simulation Wind turbines are unique devices that are typically anchored to the ground but operate in the atmosphere, which subjects them to a variety of ...

  4. Wind Vision Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Facility Status In Service Owner Wind Vision Developer Wind Vision Location St. Ansgar IA Coordinates 43.348224, -92.888816 Show Map Loading map... "minzoom":false,"mappings...

  5. Wind Energy Resource Assessment of the Caribbean and Central America

    SciTech Connect

    DL Elliott; CI Aspliden; GL Gower; CG Holladay, MN Schwartz

    1987-04-01

    A wind energy resource assessment of the Caribbean and Central America has identified many areas with good to outstanding wind resource potential for wind turbine applications. Annual average wind resource maps and summary tables have been developed for 35 island/country areas throughout the Caribbean and Central America region. The wind resource maps highlight the locations of major resource areas and provide estimates of the wind energy resource potential for typical well-exposed sites in these areas. The average energy in the wind flowing in the layer near the ground is expressed as a wind power class: the greater the average wind energy, the higher the wind power class. The summary tables that are included with each of the 35 island/country wind energy maps provide information on the frequency distribution of the wind speeds (expressed as estimates of the Weibull shape factor, k) and seasonal variations in the wind resource for the major wind resource areas identified on the maps. A new wind power class legend has been developed for relating the wind power classes to values of mean wind power density, mean wind speed, and Weibull k. Guidelines are presented on how to adjust these values to various heights above ground for different roughness and terrain characteristics. Information evaluated in preparing the assessment included existing meteorological data from airports and other weather stations, and from ships and buoys in offshore and coastal areas. In addition, new data from recent measurement sites established for wind energy siting studies were obtained for a few areas of the Caribbean. Other types of information evaluated in the assessment were climatological data and maps on winds aloft, surface pressure, air flow, and topography. The various data were screened and evaluated for their usefulness in preparing the wind resource assessment. Much of the surface data from airports and other land-based weather stations were determined to be from sheltered

  6. Alaska Wind Update

    Energy Saver

    Alaska Wind Update BIA Providers Conference Dec. 2, 2015 Unalakleet wind farm Energy Efficiency First Make homes, workplaces and communities energy efficient thru ...

  7. @NWTC Newsletter | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    from the Energy Department's National Wind Technology Center (NWTC) at the National ... an essential partner for the technical development and deployment of wind and water power. ...

  8. Scaled Wind Farm Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Scaled Wind Farm Technology - Sandia Energy Energy Search Icon Sandia Home Locations ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  9. vertical axis wind turbine

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    vertical axis wind turbine - Sandia Energy Energy Search Icon Sandia Home Locations ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  10. Enabling Wind Power Nationwide

    Energy.gov [DOE] (indexed site)

    Enabling Wind Power Nationwide May 2015 This report is being disseminated by the U.S. ... ordering: ntis.govordering.htm Enabling Wind Power Nationwide Primary Authors Jose ...

  11. Articles about Wind Siting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    energy.gov Model Examines Cumulative Impacts of Wind Energy Development on the Greater Sage-Grouse http:energy.goveerewindarticlesmodel-examines-cumulative-impacts-wind-ener...

  12. Wind Program: Publications

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Resources Publications Advanced Search Browse by Topic Mail Requests Help Energy Basics Wind Energy FAQs Small Wind Systems FAQs Multimedia Related Links Feature featured...

  13. Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Wind EERE plays a key role in advancing America's "all of the above" energy strategy, leading a large network of researchers and other partners to deliver innovative ...

  14. Market Acceleration | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL's team also offers energy and economic analysis, maps, forecasting, workforce development, and education. An aerial photo of three wind turbines at the National Wind ...

  15. Wind Turbine Tribology Seminar

    Energy.gov [DOE]

    Wind turbine reliability issues are often linked to failures of contacting components, such as bearings, gears, and actuators. Therefore, special consideration to tribological design in wind...

  16. NREL: Wind Research - Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Publications The NREL wind research program develops publications about its R&D projects, accomplishments, and goals in wind energy technologies. Here you will find links to some ...

  17. Sandia Energy Wind News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Sandia Wake-Imaging System Successfully Deployed at Scaled Wind Farm Technology Facility http:energy.sandia.govsandia-wake-imaging-system-successfully-deployed-at-scaled-wind-fa...

  18. Scale Models & Wind Turbines

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Turbines * Readings about Cape Wind and other offshore and onshore siting debates for wind farms * Student Worksheet * A number of scale model items: Ken, Barbie or other dolls...

  19. Small Wind Conference 2015

    Energy.gov [DOE]

    The Small Wind Conference brings together small wind installers, site assessors, manufacturers, dealers and distributors, supply chain stakeholders, educators, public benefits program managers, and...

  20. Wind for Schools (Poster)

    SciTech Connect

    Baring-Gould, I.

    2010-05-01

    As the United States dramatically expands wind energy deployment, the industry is challenged with developing a skilled workforce and addressing public resistance. Wind Powering America's Wind for Schools project addresses these issues by developing Wind Application Centers (WACs) at universities; WAC students assist in implementing school wind turbines and participate in wind courses, by installing small wind turbines at community "host" schools, by implementing teacher training with interactive curricula at each host school. This poster provides an overview of the first two years of the Wind for Schools project, primarily supporting activities in Colorado, Kansas, Nebraska, South Dakota, Montana, and Idaho.

  1. Wind energy bibliography

    SciTech Connect

    1995-05-01

    This bibliography is designed to help the reader search for information on wind energy. The bibliography is intended to help several audiences, including engineers and scientists who may be unfamiliar with a particular aspect of wind energy, university researchers who are interested in this field, manufacturers who want to learn more about specific wind topics, and librarians who provide information to their clients. Topics covered range from the history of wind energy use to advanced wind turbine design. References for wind energy economics, the wind energy resource, and environmental and institutional issues related to wind energy are also included.

  2. Requirements for Wind Development

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 2015 Oklahoma amended the Oklahoma Wind Energy Development Act. The amendments added new financial security requirements, setback requirements, and notification requirements for wind energy...

  3. WINDExchange: Distributed Wind

    WindExchange

    Distributed Wind Photo of a small wind turbine next to a farm house with a colorful sunset in the background. The distributed wind market includes wind turbines and projects of many sizes, from small wind turbines less than 1 kilowatt (kW) to multi-megawatt wind farms. The term "distributed wind" describes off-grid or grid-connected wind turbines at homes, farms and ranches, businesses, public and industrial facilities, and other sites. The turbines can provide all of the power used at

  4. Cherokee Wind

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cherokee Wind Presenter: Carol Wyatt Cherokee Nation Businesses, Inc. DOE Tribal Energy Program October 26, 2010 KA W PA W N EE TO NK AW A PO NC A OT OE -M IS S OU RI CH E RO KE E Acr es: 2,633 .348 CH E RO KE E Acr es: 1,641 .687 CHEROKEE NATION Kay County Chilocco Property DATA SOU RC ES: US Census Bureau (T iger Files ) D OQQ's , USGS D RG's, USGS Cherokee Nation Realty D epartment C herokee N ation GeoD ata C enter Date: 12/19/01 e:\project\land\c hilocc o N E W S Tribal Land Chilocco

  5. Chaninik Wind Group: Harnessing Wind, Building Capacity

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Chaninik Wind Group: Harnessing Wind, Building Capacity Installation of Village Energy Information System Smart Grid Controller, Thermal Stoves and Meters to Enhance the Efficiency of Wind- Diesel Hybrid Power Generation in Tribal Regions of Alaska Department of Energy Tribal Energy Program Review November 16-20, 2009 The Chananik Wind Group Our goal is to become the "heartbeat of our region." Department of Energy Tribal Energy Program Review November 16-20, 2009 Department of Energy

  6. Energy Department Announces Innovative Offshore Wind Energy Projects...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and investigate interactions between turbines. * Principle Power will install five 6-megawatt direct-drive wind turbines approximately 18 miles off the coast of Coos Bay, Oregon. ...

  7. Modeling the Benefits of Storage Technologies to Wind Power

    SciTech Connect

    Sullivan, P.; Short, W.; Blair, N.

    2008-06-01

    Rapid expansion of wind power in the electricity sector is raising questions about how wind resource variability might affect the capacity value of wind farms at high levels of penetration. Electricity storage, with the capability to shift wind energy from periods of low demand to peak times and to smooth fluctuations in output, may have a role in bolstering the value of wind power at levels of penetration envisioned by a new Department of Energy report ('20% Wind by 2030, Increasing Wind Energy's Contribution to U.S. Electricity Supply'). This paper quantifies the value storage can add to wind. The analysis was done employing the Regional Energy Deployment System (ReEDS) model, formerly known as the Wind Deployment System (WinDS) model. ReEDS was used to estimate the cost and development path associated with 20% penetration of wind in the report. ReEDS differs from the WinDS model primarily in that the model has been modified to include the capability to build and use three storage technologies: pumped-hydroelectric storage (PHS), compressed-air energy storage (CAES), and batteries. To assess the value of these storage technologies, two pairs of scenarios were run: business-as-usual, with and without storage; 20% wind energy by 2030, with and without storage. This paper presents the results from those model runs.

  8. ARM: 915-MHz Radar Wind Profiler: Wind Moments, operating in...

    Office of Scientific and Technical Information (OSTI)

    915-MHz Radar Wind Profiler: Wind Moments, operating in low power mode Title: ARM: 915-MHz Radar Wind Profiler: Wind Moments, operating in low power mode 915-MHz Radar Wind ...

  9. Hull Wind II Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

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

  10. Wind Vision: Continuing the Success of Wind Energy | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Vision: Continuing the Success of Wind Energy Wind Vision: Continuing the Success of Wind Energy April 2, 2015 - 10:35am Addthis The Wind Vision Report describes potential ...

  11. Hi-Q Rotor - Low Wind Speed Technology

    SciTech Connect

    Todd E. Mills; Judy Tatum

    2010-01-11

    our first full-scale prototype wind turbine proved that higher energy can be captured at lower wind speeds with the new Hi-Q Rotor. The Hi-Q Rotor is almost 15% more productive than the Bergey from 6 m/s to 8 m/s, making it ideal in Class 3, 4, and 5 wind sites and has application in the critical and heretofore untapped areas that are closer to cities, 'load centers,' and may even be used directly in urban areas. The additional advantage of the Hi-Q Rotor's non-conventional blade tips, which eliminates most air turbulence, is noise reduction which makes it doubly ideal for populated urban areas. Hi-Q Products recommends one final stage of development to take the Hi-Q Rotor through Technology Readiness Levels 8-9. During this stage of development, the rotor will be redesigned to further increase efficiency, match the rotor to a more suitable generator, and lower the cost of manufacturing by redesigning the structure to allow for production in larger quantities at lower cost. Before taking the rotor to market and commercialization, it is necessary to further optimize the performance by finding a better generator and autofurling system, ones more suitable for lower wind speeds and rpms should be used in all future testing. The potential impact of this fully developed technology will be the expansion and proliferation of energy renewal into the heretofore untapped Class 2, 3, 4, and 5 Wind Sites, or the large underutilized sites where the wind speed is broken by physical features such as mountains, buildings, and trees. Market estimates by 2011, if low wind speed technology can be developed are well above: 13 million homes, 675,000 commercial buildings, 250,000 public facilities. Estimated commercial exploitation of the Hi-Q Rotor show potential increase in U.S. energy gained through the clean, renewable wind energy found in low and very low wind speed sites. This new energy source would greatly impact greenhouse emissions as well as the public sector's growing energy

  12. Coastal Ohio Wind Project for Reduced Barriers to Deployment of Offshore Wind Energy

    SciTech Connect

    Gorsevski, Peter; Afjeh, Abdollah; Jamali, Mohsin; Carroll, Michael

    2014-04-09

    The Coastal Ohio Wind Project was created to establish the viability of wind turbines on the coastal and offshore regions of Northern Ohio. The project’s main goal was to improve operational unit strategies used for environmental impact assessment of offshore turbines on lake wildlife by optimizing and fusing data from the multi-instrument surveillance system and providing an engineering analysis of potential design/operational alternatives for offshore wind turbines. The project also developed a general economic model for offshore WTG deployment to quantify potential revenue losses due to wind turbine shutdown related to ice and avian issues. In a previous phase of this project (Award Number: DE-FG36-06GO86096), we developed a surveillance system that was used to collect different parameters such as passage rates, flight paths, flight directions, and flight altitudes of nocturnal migrating species, movements of birds and bats, and bird calls for assessing patterns and peak passage rates during migration. To derive such parameters we used thermal IR imaging cameras, acoustic recorders, and marine radar Furuno (XANK250), which was coupled with a XIR3000B digitizing card from Russell Technologies and open source radR processing software. The integration yielded a development of different computational techniques and methods, which we further developed and optimized as a combined surveillance system. To accomplish this task we implemented marine radar calibration, optimization of processing parameters, and fusion of the multi-sensor data in order to make inferences about the potential avian targets. The main goal of the data fusion from the multi-sensor environment was aimed at reduction of uncertainties while providing acceptable confidence levels with detailed information about the migration patterns. Another component comprised of an assessment of wind resources in a near lake environment and an investigation of the effectiveness of ice coating materials to

  13. Wind turbine/generator set and method of making same

    DOEpatents

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2013-06-04

    A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  14. Air Sealing

    SciTech Connect

    2000-02-01

    This fact sheet describes ventilation and the importance of sealing air leaks and providing controlled ventilation.

  15. NREL: Technology Deployment - Wind Energy Deployment and Market

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Transformation Wind Energy Deployment and Market Transformation NREL experts have a broad range of wind energy deployment and market transformation capabilities spanning more than 20 years of direct experience that help stakeholders understand and accelerate wind energy deployment in both the United States and internationally. Because NREL is a Federally Funded Research and Development Center, we undertake projects that fall outside of the services typically provided by high-end wind

  16. Wind Vision | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Vision Introduction U.S. Wind Power Impacts Roadmap Download Wind Vision: A New Era ... Back to top Chapter 4: The Wind Vision Roadmap The Wind Vision includes a detailed roadmap ...

  17. History of Wind Energy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    History of Wind Energy History of Wind Energy

  18. History of Wind Energy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    History of Wind Energy History of Wind Energy

  19. Impact of Increasing Distributed Wind Power and Wind Turbine Siting on Rural Distribution Feeder Voltage Profiles: Preprint

    SciTech Connect

    Allen, A.; Zhang, Y. C.; Hodge, B. M.

    2013-09-01

    Many favorable wind energy resources in North America are located in remote locations without direct access to the transmission grid. Building transmission lines to connect remotely-located wind power plants to large load centers has become a barrier to increasing wind power penetration in North America. By connecting utility-sized megawatt-scale wind turbines to the distribution system, wind power supplied to consumers could be increased greatly. However, the impact of including megawatt-scale wind turbines on distribution feeders needs to be studied. The work presented here examined the impact that siting and power output of megawatt-scale wind turbines have on distribution feeder voltage. This is the start of work to present a general guide to megawatt-scale wind turbine impact on the distribution feeder and finding the amount of wind power that can be added without adversely impacting the distribution feeder operation, reliability, and power quality.

  20. Review of Wind Energy Forecasting Methods for Modeling Ramping Events

    SciTech Connect

    Wharton, S; Lundquist, J K; Marjanovic, N; Williams, J L; Rhodes, M; Chow, T K; Maxwell, R

    2011-03-28

    Tall onshore wind turbines, with hub heights between 80 m and 100 m, can extract large amounts of energy from the atmosphere since they generally encounter higher wind speeds, but they face challenges given the complexity of boundary layer flows. This complexity of the lowest layers of the atmosphere, where wind turbines reside, has made conventional modeling efforts less than ideal. To meet the nation's goal of increasing wind power into the U.S. electrical grid, the accuracy of wind power forecasts must be improved. In this report, the Lawrence Livermore National Laboratory, in collaboration with the University of Colorado at Boulder, University of California at Berkeley, and Colorado School of Mines, evaluates innovative approaches to forecasting sudden changes in wind speed or 'ramping events' at an onshore, multimegawatt wind farm. The forecast simulations are compared to observations of wind speed and direction from tall meteorological towers and a remote-sensing Sound Detection and Ranging (SODAR) instrument. Ramping events, i.e., sudden increases or decreases in wind speed and hence, power generated by a turbine, are especially problematic for wind farm operators. Sudden changes in wind speed or direction can lead to large power generation differences across a wind farm and are very difficult to predict with current forecasting tools. Here, we quantify the ability of three models, mesoscale WRF, WRF-LES, and PF.WRF, which vary in sophistication and required user expertise, to predict three ramping events at a North American wind farm.

  1. Wind power 85

    SciTech Connect

    Not Available

    1985-01-01

    This book presents the papers given at a conference on wind turbines. Topics considered at the conference included resource assessment, wind tunnels, performance testing, aerodynamics, turbulence, fatigue, electric generators, wind loads, horizontal axis turbines, vertical axis turbines, Darrieus rotors, wind-powered pumps, economics, environmental impacts, national and international programs, field tests, flow models, feasibility studies, turbine blades, speed regulators, and airfoils.

  2. Wind power 85

    SciTech Connect

    Not Available

    1985-01-01

    This book presents the papers given at a conference on wind turbines. Topics considered at the conference included resource assessment, wind tunnel testing, vertical axis turbines, wind turbine generators, aerodynamics, airfoils, wind loads, Darrieus rotors, economics, legislation, regulations, environmental impacts, national and international programs, fatigue testing, and horizontal axis turbines.

  3. NREL: Innovation Impact - Wind

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Energy Menu Home Home Solar Solar Wind Wind Analysis Analysis Bioenergy Bioenergy Buildings Buildings Transportation Transportation Manufacturing Manufacturing Energy Systems Integration Energy Systems Integration Wind turbines must withstand powerful aerodynamic forces unlike any other propeller-drive machines. Close NREL's work with industry has improved the efficiency and durability of turbine blades and gearboxes. Innovations include: Specialized airfoils Variable-speed turbines

  4. Energy from the wind

    SciTech Connect

    Not Available

    1987-07-01

    This document provides a brief description of the use of wind power. Windmills from the 18th century are described. Modern wind turbines and wind turbine arrays are discussed. Present and future applications of wind power in the US are explained. (JDH)

  5. Your wind driven generator

    SciTech Connect

    Wolff, B.

    1984-01-01

    Wind energy pioneer Benjamin Lee Wolff offers practical guidance on all aspects of setting up and operating a wind machine. Potential builders will learn how to: determine if wind energy is suitable for a specific application; choose an appropriate machine; assess the financial costs and benefits of wind energy; obtain necessary permits; sell power to local utilities; and interpret a generator's specifications. Coverage includes legislation, regulations, siting, and operation. While describing wind energy characteristics, Wolff explores the relationships among wind speed, rotor diameter, and electrical power capacity. He shows how the power of wind energy can be tapped at the lowest cost.

  6. Wind Energy Benefits: Slides

    WindExchange

    1. Wind energy is cost competitive. *Wiser, R.; Bolinger, M. (2015). 2014 Wind Technologies Market Report. U.S. Department of Energy. Wind Energy Benefits Photo from DOE Flickr. 465 020 003 In 2014, the average levelized price of signed wind power purchase agreements was about 2.35 cents per kilowatt-hour. This price is cost competitive with new gas-fired power plants and projects compare favorably through 2040.* 2. Wind energy creates jobs. American Wind Energy Association. (2015). U.S. Wind

  7. Statistical and Spectral Analysis of Wind Characteristics Relevant to Wind Energy Assessment Using Tower Measurements in Complex Terrain

    DOE PAGES [OSTI]

    Belu, Radian; Koracin, Darko

    2013-01-01

    The main objective of the study was to investigate spatial and temporal characteristics of the wind speed and direction in complex terrain that are relevant to wind energy assessment and development, as well as to wind energy system operation, management, and grid integration. Wind data from five tall meteorological towers located in Western Nevada, USA, operated from August 2003 to March 2008, used in the analysis. The multiannual average wind speeds did not show significant increased trend with increasing elevation, while the turbulence intensity slowly decreased with an increase were the average wind speed. The wind speed and direction weremore » modeled using the Weibull and the von Mises distribution functions. The correlations show a strong coherence between the wind speed and direction with slowly decreasing amplitude of the multiday periodicity with increasing lag periods. The spectral analysis shows significant annual periodicity with similar characteristics at all locations. The relatively high correlations between the towers and small range of the computed turbulence intensity indicate that wind variability is dominated by the regional synoptic processes. Knowledge and information about daily, seasonal, and annual wind periodicities are very important for wind energy resource assessment, wind power plant operation, management, and grid integration.« less

  8. Radar-cross-section reduction of wind turbines. part 1.

    SciTech Connect

    Brock, Billy C.; Loui, Hung; McDonald, Jacob J.; Paquette, Joshua A.; Calkins, David A.; Miller, William K.; Allen, Steven E.; Clem, Paul Gilbert; Patitz, Ward E.

    2012-03-05

    In recent years, increasing deployment of large wind-turbine farms has become an issue of growing concern for the radar community. The large radar cross section (RCS) presented by wind turbines interferes with radar operation, and the Doppler shift caused by blade rotation causes problems identifying and tracking moving targets. Each new wind-turbine farm installation must be carefully evaluated for potential disruption of radar operation for air defense, air traffic control, weather sensing, and other applications. Several approaches currently exist to minimize conflict between wind-turbine farms and radar installations, including procedural adjustments, radar upgrades, and proper choice of low-impact wind-farm sites, but each has problems with limited effectiveness or prohibitive cost. An alternative approach, heretofore not technically feasible, is to reduce the RCS of wind turbines to the extent that they can be installed near existing radar installations. This report summarizes efforts to reduce wind-turbine RCS, with a particular emphasis on the blades. The report begins with a survey of the wind-turbine RCS-reduction literature to establish a baseline for comparison. The following topics are then addressed: electromagnetic model development and validation, novel material development, integration into wind-turbine fabrication processes, integrated-absorber design, and wind-turbine RCS modeling. Related topics of interest, including alternative mitigation techniques (procedural, at-the-radar, etc.), an introduction to RCS and electromagnetic scattering, and RCS-reduction modeling techniques, can be found in a previous report.

  9. ARM - Wind Chill Calculations

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    CalculatorsWind Chill Calculations Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Wind Chill Calculations Wind Chill is the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed. From 1945 to 2001, Wind Chill was calculated by the Siple

  10. Wind Power Outlook 2004

    SciTech Connect

    anon.

    2004-01-01

    The brochure, expected to be updated annually, provides the American Wind Energy Association's (AWAE's) up-to-date assessment of the wind industry. It provides a summary of the state of wind power in the U.S., including the challenges and opportunities facing the industry. It provides summary information on the growth of the industry, policy-related factors such as the federal wind energy production tax credit status, comparisons with natural gas, and public views on wind energy.

  11. WINDExchange: Collegiate Wind Competition

    WindExchange

    Education Printable Version Bookmark and Share Workforce Development Collegiate Wind Competition Wind for Schools Project School Project Locations Education & Training Programs Curricula & Teaching Materials Resources Collegiate Wind Competition The U.S. Department of Energy (DOE) Collegiate Wind Competition challenges interdisciplinary teams of undergraduate students from a variety of programs to offer a unique solution to a complex wind energy project. The Competition provides students

  12. WINDExchange: Wind Energy Ordinances

    WindExchange

    Wind Energy Ordinances Federal, state, and local regulations govern many aspects of wind energy development. The nature of the project and its location will largely drive the levels of regulation required. Wind energy ordinances adopted by counties, towns, and other types of municipalities are one of the best ways for local governments to identify conditions and priorities for all types of wind development. These ordinances regulate aspects of wind projects such as their location, permitting

  13. 2006 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    6 News Below are news stories related to Wind. RSS Learn about RSS. December 14, 2006 NREL and Xcel Energy Dedicate Wind-Powered Hydrogen Generator DOE's National Renewable Energy Laboratory (NREL) and Xcel Energy dedicated a new system to convert wind power into hydrogen on December 14th. The system, located at NREL's National Wind Technology Center, links two wind turbines to devices called electrolyzers, which pass the electricity through water to split the liquid into hydrogen and oxygen.

  14. WINDExchange: Offshore 90-Meter Wind Maps and Wind Resource Potential

    WindExchange

    Offshore 90-Meter Wind Maps and Wind Resource Potential The U.S. Department of Energy provides 90-meter (m) height, high-resolution wind maps and estimates of the total offshore wind potential that would be possible from developing the available offshore areas. The offshore wind resource maps can be used as a guide to identify regions for commercial wind development. A map of the United States showing offshore wind resource. Washington offshore wind map. Oregon offshore wind map. California

  15. Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology

    SciTech Connect

    Not Available

    1993-11-01

    The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

  16. National Wind Assessments formerly Romuld Wind Consulting | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Assessments formerly Romuld Wind Consulting Jump to: navigation, search Name: National Wind Assessments (formerly Romuld Wind Consulting) Place: Minneapolis, Minnesota Zip: 55416...

  17. Scaled Wind Farm Technology (SWIFT) Facility Wind Turbine Controller...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    (SWIFT) Facility Wind Turbine Controller Ground Testing - Sandia Energy Energy Search Icon ... Scaled Wind Farm Technology (SWIFT) Facility Wind Turbine Controller Ground Testing Home...

  18. NREL: Wind Research - Small and Distributed Wind Turbine Research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Small and Distributed Wind Turbine Research A distributed wind farm in Wisconsin at ... Standards: The suite of tests conducted on small wind turbines includes acoustic noise ...

  19. Sinomatech Wind Power Blade aka Sinoma Science Technology Wind...

    OpenEI (Open Energy Information) [EERE & EIA]

    Sinomatech Wind Power Blade aka Sinoma Science Technology Wind Turbine Blade Co Ltd Jump to: navigation, search Name: Sinomatech Wind Power Blade (aka Sinoma Science & Technology...

  20. Radial lean direct injection burner

    DOEpatents

    Khan, Abdul Rafey; Kraemer, Gilbert Otto; Stevenson, Christian Xavier

    2012-09-04

    A burner for use in a gas turbine engine includes a burner tube having an inlet end and an outlet end; a plurality of air passages extending axially in the burner tube configured to convey air flows from the inlet end to the outlet end; a plurality of fuel passages extending axially along the burner tube and spaced around the plurality of air passage configured to convey fuel from the inlet end to the outlet end; and a radial air swirler provided at the outlet end configured to direct the air flows radially toward the outlet end and impart swirl to the air flows. The radial air swirler includes a plurality of vanes to direct and swirl the air flows and an end plate. The end plate includes a plurality of fuel injection holes to inject the fuel radially into the swirling air flows. A method of mixing air and fuel in a burner of a gas turbine is also provided. The burner includes a burner tube including an inlet end, an outlet end, a plurality of axial air passages, and a plurality of axial fuel passages. The method includes introducing an air flow into the air passages at the inlet end; introducing a fuel into fuel passages; swirling the air flow at the outlet end; and radially injecting the fuel into the swirling air flow.

  1. Wake of the MOD-0A1 wind turbine at two rotor diameters downwind on December 3, 1981

    SciTech Connect

    Connell, J.R.; George, R.L.

    1982-11-01

    The wake of the MOD-0A1 wind turbine at Clayton, New Mexico has been measured using a vertical plane array of anemometers in a crosswind plane at a distance of two rotor diameters directly downwind of the turbine. Rotor blade vortices were well mixed into the wake turbulence and were not separately detectable. Wake swirl about the along-wind axis had a value not greater than 0.025 rad/s. Extra turbulence energy existed in the edge of the wake at a frequency of about n=0.025 Hz. The cross-wake plane analyses of wind speeds revealed a nearly circular inner portion and a strongly elliptical portion. The elliptical portion major axis was horizontal. An estimate of the average rate of reenergizing of the wake, using measurements of mean wind energy flow and turbine power, suggests that entrainment with ambient air may have been rapid. Some wake characteristics were compared with the corresponding ones for several simple wake models based upon concepts of mixing of ambient air into a wake or an equivalent coaxial jet. (LEW)

  2. Distributed Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Distributed Wind Distributed Wind The Wind Program's activities in wind technologies in distributed applications-or distributed wind-address the performance and reliability challenges associated with smaller turbines by focusing on technology development, testing, certification, and manufacturing. What is Distributed Wind? Photo of a turbine behind a school. The Wind Program defines distributed wind in terms of technology application, based on a wind plant's location relative to end-use and

  3. Chaninik Wind Group Wind Heat Smart Grid

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Chaninik Wind Group Wind Heat Smart Grid Our Presentation * William Igkurak, President Chaninik Wind Group * the harness renewables to lower energy costs, * create economic opportunities * build human capacity * Dennis Meiners * Principal Intelligent Energy Systems, Anchorage Ak. * How it all works Program Highlights ²Award Tribal Energy funding 2009, Village Smart Grid ²Received funds November 2010 ²Project to be complete June 2011 ²Theme: "communities working together we can become

  4. Wind resource assessment: A three year experience

    SciTech Connect

    Al-Abbadi, N.M.; Alawaji, S.H.; Eugenio, N.N.

    1997-12-31

    This paper presents the results of data collected from three different sites located in the central, northern and eastern region of Saudi Arabia. Each site is geographically and climatologically different from the others. Statistical moments and frequency distributions were generated for the wind speed and direction parameters to analyse the wind energy characteristics and its availability. The results of these statistical operations present the wind power and energy density estimates of the three sites. The data analysis presented a prospect of wind energy conversion and utilization. The annual extractable energy density is 488, 890, 599 kWh/m{sup 2} for the central, northern and eastern sites respectively. Also, the paper demonstrates the lessons learned from operating wind assessment stations installed in remote areas having different environmental characteristics.

  5. Star Point Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Point Wind Farm Jump to: navigation, search Name Star Point Wind Farm Facility Star Point Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  6. Gulf Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Farm Jump to: navigation, search Name Gulf Wind Farm Facility Gulf Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Pattern Energy...

  7. Stetson Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Farm Jump to: navigation, search Name Stetson Wind Farm Facility Stetson Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind...

  8. Zirbel Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name Zirbel Wind Farm Facility Zirbel Wind Farm (Glenmore Wind Energy Facility) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  9. Beebe Community Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search Name Beebe Community Wind Facility Beebe Community Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Exelon Wind...

  10. Woodstock Municipal Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name Woodstock Municipal Wind Facility Woodstock Municipal Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Juhl Wind...

  11. Winona County Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name Winona County Wind Facility Winona County Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Juhl Wind...

  12. Story City Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump to: navigation, search Name Story City Wind Facility Story City Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Hamilton Wind Energy...

  13. Palmetto Wind Research Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Research Project Jump to: navigation, search Name Palmetto Wind Research Project Facility Palmetto Wind Research Project Sector Wind energy Facility Type Offshore Wind...

  14. Tillamook Offshore Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

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

  15. Deepwater Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Name Deepwater Wind Farm Facility Deepwater Wind Farm Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner PSEG Renewable Generation Deepwater Wind...

  16. Galveston Offshore Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

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

  17. Montfort Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Montfort Wind Farm Jump to: navigation, search Name Montfort Wind Farm Facility Montfort Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  18. Wildcat 1 Wind Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wildcat 1 Wind Project Jump to: navigation, search Name Wildcat 1 Wind Project Facility Wildcat 1 Wind Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  19. Springview II Wind Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Springview II Wind Project Jump to: navigation, search Name Springview II Wind Project Facility Springview II Wind Project Sector Wind energy Facility Type Commercial Scale Wind...

  20. Shiloh Wind Power Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Project Jump to: navigation, search Name Shiloh Wind Power Project Facility Shiloh Wind Power Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  1. Fenton Wind Power Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Project Jump to: navigation, search Name Fenton Wind Power Project Facility Fenton Wind Power Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  2. Madison Wind Power Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Project Jump to: navigation, search Name Madison Wind Power Project Facility Madison Wind Power Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  3. Somerset Wind Power Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Project Jump to: navigation, search Name Somerset Wind Power Project Facility Somerset Wind Power Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  4. Desert Wind Power | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Jump to: navigation, search Name Desert Wind Power Facility Desert Wind Power Sector Wind energy Facility Type Commercial Scale Wind Facility Status Proposed Developer...

  5. Moraine Wind Power Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Project Jump to: navigation, search Name Moraine Wind Power Project Facility Moraine Wind Power Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  6. Adams Wind Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Project Jump to: navigation, search Name Adams Wind Project Facility Adams Wind Project Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  7. Blue Creek Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Creek Wind Farm Jump to: navigation, search Name Blue Creek Wind Farm Facility Blue Creek Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  8. Tuana Springs Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Springs Wind Farm Jump to: navigation, search Name Tuana Springs Wind Farm Facility Tuana Springs Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  9. Thousand Springs Wind Park | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Springs Wind Park Jump to: navigation, search Name Thousand Springs Wind Park Facility Thousand Springs Wind Park Sector Wind energy Facility Type Commercial Scale Wind Facility...

  10. First State Marine Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    State Marine Wind Jump to: navigation, search Name First State Marine Wind Facility First State Marine Wind Sector Wind energy Facility Type Offshore Wind Facility Status Proposed...

  11. Minco Wind Energy Center | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Energy Center Jump to: navigation, search Name Minco Wind Energy Center Facility Minco Wind Energy Center Sector Wind energy Facility Type Commercial Scale Wind Facility...

  12. Dunlap Wind Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Dunlap Wind Energy Project Jump to: navigation, search Name Dunlap Wind Energy Project Facility Dunlap Wind Energy Project Sector Wind energy Facility Type Commercial Scale Wind...

  13. Baseline Wind Energy Facility | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Energy Facility Jump to: navigation, search Name Baseline Wind Energy Facility Facility Baseline Wind Energy Facility Sector Wind energy Facility Type Commercial Scale Wind...

  14. Howard Wind Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Energy Project Jump to: navigation, search Name Howard Wind Energy Project Facility Howard Wind Energy Project Sector Wind energy Facility Type Community Wind Facility Status...

  15. Cape Wind Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Project Jump to: navigation, search Name Cape Wind Project Facility Cape Wind Sector Wind energy Facility Type Offshore wind Facility Status Proposed Owner Cape Wind Developer Cape...

  16. Wales Wind Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wales Wind Energy Project Jump to: navigation, search Name Wales Wind Energy Project Facility Wales Wind Energy Project Sector Wind energy Facility Type Small Scale Wind Facility...

  17. Wyoming Wind Energy Center | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Energy Center Jump to: navigation, search Name Wyoming Wind Energy Center Facility Wyoming Wind Energy Center Sector Wind energy Facility Type Commercial Scale Wind Facility...

  18. Vantage Wind Energy Center | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Energy Center Jump to: navigation, search Name Vantage Wind Energy Center Facility Vantage Wind Energy Center Sector Wind energy Facility Type Commercial Scale Wind Facility...

  19. Bayonne Wind Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Bayonne Wind Energy Project Jump to: navigation, search Name Bayonne Wind Energy Project Facility Bayonne Wind Energy Project Sector Wind energy Facility Type Community Wind...

  20. Gary Wind Energy Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gary Wind Energy Project Jump to: navigation, search Name Gary Wind Energy Project Facility Gary Wind Energy Project Sector Wind energy Facility Type Small Scale Wind Facility...

  1. Havoco Wind Energy LLC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Havoco Wind Energy LLC Jump to: navigation, search Name: Havoco Wind Energy LLC Place: Dallas, Texas Zip: 75206 Sector: Wind energy Product: Wind developer of Altamont Pass wind...

  2. Oliver Wind Energy Center | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Energy Center Jump to: navigation, search Name Oliver Wind Energy Center Facility Oliver Wind Energy Center Sector Wind energy Facility Type Commercial Scale Wind Facility...

  3. Flat Water Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Water Wind Farm Jump to: navigation, search Name Flat Water Wind Farm Facility Flat Water Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  4. Gray County Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gray County Wind Farm Jump to: navigation, search Name Gray County Wind Farm Facility Gray County Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  5. Hopkins Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Farm Jump to: navigation, search Name Hopkins Ridge Wind Farm Facility Hopkins Ridge Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  6. Luther College Wind Turbine | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Luther College Wind Turbine Jump to: navigation, search Name Luther College Wind Turbine Facility Luther College Wind Turbine Sector Wind energy Facility Type Community Wind...

  7. Williams Stone Wind Turbine | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Stone Wind Turbine Jump to: navigation, search Name Williams Stone Wind Turbine Facility Williams Stone Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status...

  8. Portsmouth Wind Turbine | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Turbine Jump to: navigation, search Name Portsmouth Wind Turbine Facility Portsmouth Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service...

  9. Charlestown Wind Turbine | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Charlestown Wind Turbine Jump to: navigation, search Name Charlestown Wind Turbine Facility Charlestown Wind Turbine Sector Wind energy Facility Type Commercial Scale Wind Facility...

  10. Fenner Wind Power Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Power Project Jump to: navigation, search Name Fenner Wind Power Project Facility Fenner Wind Power Project Sector Wind energy Facility Type Commercial Scale Wind Facility...

  11. Shane Cowell Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Shane Cowell Wind Farm Jump to: navigation, search Name Shane Cowell Wind Farm Facility Shane Cowell Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  12. Antelope Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Antelope Ridge Wind Farm Jump to: navigation, search Name Antelope Ridge Wind Farm Facility Antelope Ridge Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  13. Locust Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Locust Ridge Wind Farm Jump to: navigation, search Name Locust Ridge Wind Farm Facility Locust Ridge Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  14. Rosiere Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Rosiere Wind Farm Jump to: navigation, search Name Rosiere Wind Farm Facility Rosiere Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  15. Paynes Ferry Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Paynes Ferry Wind Farm Jump to: navigation, search Name Paynes Ferry Wind Farm Facility Paynes Ferry Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  16. Marengo Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Marengo Wind Farm Jump to: navigation, search Name Marengo Wind Farm Facility Marengo Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  17. Stoney Corners Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Stoney Corners Wind Farm Jump to: navigation, search Name Stoney Corners Wind Farm Facility Stoney Corners Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  18. Marshall Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Marshall Wind Farm Jump to: navigation, search Name Marshall Wind Farm Facility Marshall Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  19. Laredo Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Laredo Ridge Wind Farm Jump to: navigation, search Name Laredo Ridge Wind Farm Facility Laredo Ridge Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  20. Nine Canyon Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Nine Canyon Wind Farm Jump to: navigation, search Name Nine Canyon Wind Farm Facility Nine Canyon Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  1. Casper Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Casper Wind Farm Jump to: navigation, search Name Casper Wind Farm Facility Casper Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  2. Wallys Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wallys Wind Farm Jump to: navigation, search Name Wallys Wind Farm Facility Wallys Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  3. Cassia Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cassia Wind Farm Jump to: navigation, search Name Cassia Wind Farm Facility Cassia Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  4. Hatchet Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Hatchet Ridge Wind Farm Jump to: navigation, search Name Hatchet Ridge Wind Farm Facility Hatchet Ridge Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  5. Cedar Point Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cedar Point Wind Farm Jump to: navigation, search Name Cedar Point Wind Farm Facility Cedar Point Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  6. Allegheny Ridge Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Allegheny Ridge Wind Farm Jump to: navigation, search Name Allegheny Ridge Wind Farm Facility Allegheny Ridge wind farm Sector Wind energy Facility Type Commercial Scale Wind...

  7. Greensburg Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Greensburg Wind Farm Jump to: navigation, search Name Greensburg Wind Farm Facility Greensburg Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  8. Wheatfield Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wheatfield Wind Farm Jump to: navigation, search Name Wheatfield Wind Farm Facility Wheatfield Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  9. Ewington Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Ewington Wind Farm Jump to: navigation, search Name Ewington Wind Farm Facility Ewington Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  10. Uilk Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Uilk Wind Farm Jump to: navigation, search Name Uilk Wind Farm Facility Uilk Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer...

  11. Octotillo Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Octotillo Wind Farm Jump to: navigation, search Name Octotillo Wind Farm Facility Octotillo Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  12. Don Sneve Wind Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sneve Wind Project Jump to: navigation, search Name Don Sneve Wind Project Facility Don Sneve Wind Project Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  13. Spring Canyon Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Spring Canyon Wind Farm Jump to: navigation, search Name Spring Canyon Wind Farm Facility Spring Canyon Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  14. Green Mountain Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Farm Jump to: navigation, search Name Green Mountain Wind Farm Facility Green Mountain Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  15. Red Canyon Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Canyon Wind Farm Jump to: navigation, search Name Red Canyon Wind Farm Facility Red Canyon Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  16. Kansas/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Kansas Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  17. Idaho/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Idaho Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  18. Nevada/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Nevada Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  19. Iowa/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Iowa Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  20. Small Wind Guidebook | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Home >> Wind >> Small Wind Guidebook WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  1. Maine/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Maine Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  2. Hawaii/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Hawaii Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  3. Oregon/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Oregon Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  4. Alaska/Wind Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Guidebook >> Alaska Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  5. Olsen Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Olsen Wind Farm Jump to: navigation, search Name Olsen Wind Farm Facility Olsen Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  6. Sigel Wind Park | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sigel Wind Park Jump to: navigation, search Name Sigel Wind Park Facility Sigel Wind Park Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  7. Minden Wind Park | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Minden Wind Park Jump to: navigation, search Name Minden Wind Park Facility Minden Wind Park Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  8. Fossil Gulch Wind Park | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gulch Wind Park Jump to: navigation, search Name Fossil Gulch Wind Park Facility Fossil Gulch Wind Park Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  9. Criterion Wind Park | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Criterion Wind Park Jump to: navigation, search Name Criterion Wind Park Facility Criterion Wind Park Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  10. Golden Valley Wind Park | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Park Jump to: navigation, search Name Golden Valley Wind Park Facility Golden Valley Wind Park Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  11. Condon Wind Project | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Condon Wind Project Jump to: navigation, search Name Condon Wind Project Facility Condon Wind Project Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  12. Turkey Track Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Track Wind Farm Jump to: navigation, search Name Turkey Track Wind Farm Facility Turkey Track Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  13. Spanish Fork Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Fork Wind Farm Jump to: navigation, search Name Spanish Fork Wind Farm Facility Spanish Fork Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  14. Wind Power (pbl/generation)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Wind Power (Updated June 16, 2014) Project Descriptions Foote Creek I Wind Project (Carbon...

  15. AWEA Wind Energy Fall Symposium

    Energy.gov [DOE]

    The AWEA Wind Energy Fall Symposium gathers wind energy professionals for informal yet productive interactions with industry peers. Jose Zayas, Director, Wind & Water Power Technologies Office,...

  16. Modular Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Signal Hill, California Sector: Wind energy Product: California-based wind turbine blade designer in stealth mode. References: Modular Wind1 This article is a stub. You can...

  17. Wind 7 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Name: Wind 7 Place: Eckernfoerde, Schleswig-Holstein, Germany Zip: 24340 Sector: Wind energy Product: Eckernfoerde-based company that develops & operates wind power projects in...

  18. Salt Repository Project site study plan for meteorology/air quality: Revision 1

    SciTech Connect

    Not Available

    1987-12-01

    The Site Study Plan for Meteorology/Air Quality describes a field program consisting of continuous measurements of wind speed and direction, temperature, humidity, dew point, and pressure neede for later modeling and dose calculations. These measurements will include upper level winds, vertical temperature structure, and vertical wind speed. All measurements will be made at a site located within the 9-m/sup 2/ site area but remote from the ESF. The SSP describes the need for each study; its design and design rationale; analysis, management, and use of data; schedule of field activities, organization of field personnel and sample management and quality assurance requirements. These studies will provide data needed to satisfy requirements contained in, or derived from, the Salt Repository Project Requirements Document. Although titled Meteorology/Air Quality, this SSP addresses only meteorology, as there are no air quality data needs in the SCP. A correction to the title will be made in a later revision. 27 refs., 6 figs., 3 tabs.

  19. Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Wind The U.S. wind energy industry continued its strong growth in 2015, adding new generating capacity faster than any other source of electricity generation. Get the latest update on the state of the industry in our 2015 Wind Market Reports. The U.S. wind energy industry continued its strong growth in 2015, adding new generating capacity faster than any other source of electricity generation. Get the latest update on the state of the industry in our 2015 Wind Market Reports. The United

  20. Wind Power Career Chat

    SciTech Connect

    L. Flowers

    2011-01-01

    This document will teach students about careers in the wind energy industry. Wind energy, both land-based and offshore, is expected to provide thousands of new jobs in the next several decades. Wind energy companies are growing rapidly to meet America's demand for clean, renewable, and domestic energy. These companies need skilled professionals. Wind power careers will require educated people from a variety of areas. Trained and qualified workers manufacture, construct, operate, and manage wind energy facilities. The nation will also need skilled researchers, scientists, and engineers to plan and develop the next generation of wind energy technologies.

  1. Research | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research During the past 35 years of wind research and development, NREL has pioneered many of the components and systems that have taken wind energy technologies to new heights. Through its expertise and one-of-a-kind assets, the research performed at NREL has become a guiding force, advancing wind technologies from initial concepts to deployment. A photo of six megawatt-scale wind turbines at various heights on a flat field. Land-Based Wind A photo of a singular wind turbine on a yellow

  2. See the Wind

    Education - Teach & Learn

    The goal of this activity is to help students see the difference in the speed and smoothness of the wind at different altitudes above the earth. This is important for wind engineers as they seek to place their wind turbines in the fastest and smoothest winds possible. It is also a major reason that wind turbines are getting larger and higher in the sky, and is why we are starting to see wind turbines in the plains and out in the ocean near the coast. Teacher background and assessment sheets are provided.

  3. Wind ripple analysis

    SciTech Connect

    Akins, R.E.

    1981-01-01

    Efficient and economical utilization of wind power will require the ability to measure and ultimately predict the effects fluctuations in the incident wind will have on a wind turbine. In order to quantitatively assess these effects, experimental techniques have been developed which allow analysis of full-scale performance of wind turbines with particular emphasis on the effects caused by turbulence in the incident wind. Examples of these techniques are presented using data from the DOE/Sandia Vertical Axis Wind Turbine (VAWT) program.

  4. Wind energy information guide

    SciTech Connect

    1996-04-01

    This book is divided into nine chapters. Chapters 1--8 provide background and annotated references on wind energy research, development, and commercialization. Chapter 9 lists additional sources of printed information and relevant organizations. Four indices provide alphabetical access to authors, organizations, computer models and design tools, and subjects. A list of abbreviations and acronyms is also included. Chapter topics include: introduction; economics of using wind energy; wind energy resources; wind turbine design, development, and testing; applications; environmental issues of wind power; institutional issues; and wind energy systems development.

  5. Characteristics study of Transmission Line Mechanical Research Center (TLMRC) wind tower data. Notes on field-wind loading experiments

    SciTech Connect

    Shan, L.

    1992-10-01

    To initiate and develop EPRI`s wind loading research program, an experimental wind tower was erected at the TLMRC site. A number of anemometers were placed at different elevation levels of the wind tower. Strain gages were also mounted on the leg posts of the tower. The purposes of this experiment were to establish the wind characteristics at the TLMRC site, and to gain experience using different types of instrumentation and data acquisition techniques in field-wind loading experiments. Three sets of wind data collected from the TLMRC wind tower were validated and analyzed in this study. Since the characteristics of wind and response data can be described in different terms and by various methods, the study describes the concept, Identifies the focal point, and discusses the results of each method used in this report. In addition, some comments are provided on how to conduct the field-wind loading experiments as well as how to analyze the wind and response data. The results of this study show that: (1) the magnitudes of wind velocity and direction can vary considerably during a short period of time; (2) the mean vertical wind profile does not hold constant as usually assumed; (3) the turbulence intensity and the gust factor increase as the height above ground decreases; (4) the averaging time can greatly influence the results of wind data analysis; (5) although wind contains lime energy beyond 1 Hz, structural responses above 1 Hz can be excited; (6) strong relationships exist between the wind velocity and the responses in the leg posts of the wind tower. System identification, a tool for establishing models of dynamic systems based in observed data, is successfully used in a trial application which estimates the relationship between the wind velocity and the responses in the wind tower.

  6. FLUIDIC: Metal Air Recharged

    SciTech Connect

    Friesen, Cody

    2014-03-07

    Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

  7. FLUIDIC: Metal Air Recharged

    ScienceCinema

    Friesen, Cody

    2014-04-02

    Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

  8. Air filter

    SciTech Connect

    Jackson, R.E.; Sparks, J.E.

    1981-03-03

    An air filter is described that has a counter rotating drum, i.e., the rotation of the drum is opposite the tangential intake of air. The intake air has about 1 lb of rock wool fibers per 107 cu. ft. of air sometimes at about 100% relative humidity. The fibers are doffed from the drum by suction nozzle which are adjacent to the drum at the bottom of the filter housing. The drum screen is cleaned by periodically jetting hot dry air at 120 psig through the screen into the suction nozzles.

  9. Lake Michigan Offshore Wind Feasibility Assessment

    SciTech Connect

    Boezaart, Arnold; Edmonson, James; Standridge, Charles; Pervez, Nahid; Desai, Neel; Williams, Bruce; Clark, Aaron; Zeitler, David; Kendall, Scott; Biddanda, Bopi; Steinman, Alan; Klatt, Brian; Gehring, J. L.; Walter, K.; Nordman, Erik E.

    2014-06-30

    recording wind data technology at a at a high confidence level as compared to traditional anemometer cup technology. • During storms, mean Turbulent Kinetic Energy (TKE) increases with height above water; • Sufficient wind resources exist over Lake Michigan to generate 7,684 kWh of power using a 850 kW rated turbine at elevations between 90 - 125 meters, a height lower than originally anticipated for optimum power generation; • Based on initial assessments, wind characteristics are not significantly different at distant (thirty-two mile) offshore locations as compared to near-shore (six mile) locations; • Significant cost savings can be achieved in generation wind energy at lower turbine heights and locating closer to shore. • Siting must be sufficiently distant from shore to minimize visual impact and to address public sentiment about offshore wind development; • Project results show that birds and bats do frequent the middle of Lake Michigan, bats more so than birds; • Based on the wind resource assessment and depths of Lake Michigan encountered during the project, future turbine placement will most likely need to incorporate floating or anchored technology; • The most appropriate siting of offshore wind energy locations will enable direct routing of transmission cables to existing generating and transmission facilities located along the Michigan shoreline; • Wind turbine noise propagation from a wind energy generating facility at a five mile offshore location will not be audible at the shoreline over normal background sound levels.

  10. Wind Vision: A New Era for Wind Power

    Energy.gov [DOE] (indexed site)

    Highlights Wind Vision: A New Era for Wind Power in the United States Wind Vision Objectives The U.S. Department of Energy's (DOE's) Wind and Water Power Technologies Office has ...

  11. 20% Wind Energy by 2030: Increasing Wind Energy's Contribution...

    Energy Saver

    % Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply 20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply ...

  12. EERE 2014 Wind Technologies Market Report Finds Wind Power at...

    Energy Saver

    2014 Wind Technologies Market Report Finds Wind Power at Record Low Prices EERE 2014 Wind Technologies Market Report Finds Wind Power at Record Low Prices August 10, 2015 - 11:00am ...

  13. Ion-driven instabilities in the solar wind: Wind observations...

    Office of Scientific and Technical Information (OSTI)

    Ion-driven instabilities in the solar wind: Wind observations of 19 March 2005 Citation Details In-Document Search Title: Ion-driven instabilities in the solar wind: Wind ...

  14. Wind/Wave Misalignment in the Loads Analysis of a Floating Offshore Wind Turbine: Preprint

    SciTech Connect

    Barj, L.; Stewart, S.; Stewart, G.; Lackner, M.; Jonkman, J.; Robertson, A.

    2014-02-01

    Wind resources far from the shore and in deeper seas have encouraged the offshore wind industry to look into floating platforms. The International Electrotechnical Commission (IEC) is developing a new technical specification for the design of floating offshore wind turbines that extends existing design standards for land-based and fixed-bottom offshore wind turbines. The work summarized in this paper supports the development of best practices and simulation requirements in the loads analysis of floating offshore wind turbines by examining the impact of wind/wave misalignment on the system loads under normal operation. Simulations of the OC3-Hywind floating offshore wind turbine system under a wide range of wind speeds, significant wave heights, peak-spectral periods and wind/wave misalignments have been carried out with the aero-servo-hydro-elastic tool FAST [4]. The extreme and fatigue loads have been calculated for all the simulations. The extreme and fatigue loading as a function of wind/wave misalignment have been represented as load roses and a directional binning sensitivity study has been carried out. This study focused on identifying the number and type of wind/wave misalignment simulations needed to accurately capture the extreme and fatigue loads of the system in all possible metocean conditions considered, and for a down-selected set identified as the generic US East Coast site. For this axisymmetric platform, perpendicular wind and waves play an important role in the support structure and including these cases in the design loads analysis can improve the estimation of extreme and fatigue loads. However, most structural locations see their highest extreme and fatigue loads with aligned wind and waves. These results are specific to the spar type platform, but it is expected that the results presented here will be similar to other floating platforms.

  15. 2008 Wind Energy Projects, Wind Powering America (Poster)

    SciTech Connect

    Not Available

    2009-01-01

    The Wind Powering America program produces a poster at the end of every calendar year that depicts new U.S. wind energy projects. The 2008 poster includes the following projects: Stetson Wind Farm in Maine; Dutch Hill Wind Farm in New York; Grand Ridge Wind Energy Center in Illinois; Hooper Bay, Alaska; Forestburg, South Dakota; Elbow Creek Wind Project in Texas; Glacier Wind Farm in Montana; Wray, Colorado; Smoky Hills Wind Farm in Kansas; Forbes Park Wind Project in Massachusetts; Spanish Fork, Utah; Goodland Wind Farm in Indiana; and the Tatanka Wind Energy Project on the border of North Dakota and South Dakota.

  16. Community Wind Handbook/Conduct a Wind Resource Estimate | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    "Windustry. Wind Resource Assessment" "AWS Scientific for the National Renewable Energy Laboratory. Wind Resource Assessment Handbook" Retrieved from "http:...

  17. Module bay with directed flow

    DOEpatents

    Torczynski, John R.

    2001-02-27

    A module bay requires less cleanroom airflow. A shaped gas inlet passage can allow cleanroom air into the module bay with flow velocity preferentially directed toward contaminant rich portions of a processing module in the module bay. Preferential gas flow direction can more efficiently purge contaminants from appropriate portions of the module bay, allowing a reduced cleanroom air flow rate for contaminant removal. A shelf extending from an air inlet slit in one wall of a module bay can direct air flowing therethrough toward contaminant-rich portions of the module bay, such as a junction between a lid and base of a processing module.

  18. 2016 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2016 News Below are news stories related to Wind. RSS Learn about RSS. September 13, 2016 Survey Reveals Projections for Lower Wind Energy Costs The cost of producing electricity ...

  19. ARM - Measurement - Horizontal wind

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    wind ARM Data Discovery Browse Data Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Horizontal wind The horizontal ...

  20. 2012 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2 News Below are news stories related to Wind. RSS Learn about RSS. September 25, 2012 Wind Energy Research Institutes Join Forces at the Inaugural Meeting of the North American ...

  1. 2010 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    0 News Below are news stories related to Wind. RSS Learn about RSS. October 27, 2010 Offshore Wind Energy Poised to Play a Vital Role in Future U.S. Energy Markets A new report ...

  2. DOE Wind Program Update

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Program Update March 2007 P.J. Dougherty Wind and Hydropower Technologies Program Since the 1970's, DOE has spent just over 1B in developing a market, which will reach over ...

  3. 2011 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1 News Below are news stories related to Wind. RSS Learn about RSS. December 9, 2011 Saving Farmland One Wind Energy Project at a Time Rich VanderVeen, president of Mackinaw Power, ...

  4. WINDExchange: Learn About Wind

    WindExchange

    wind turbines in a row at sunset. The sky is varying hues of orange and the sun is halfway past the horizon. Wind power comes in many sizes. Here, several...

  5. WindWaveFloat

    SciTech Connect

    Weinstein, Alla

    2011-11-01

    Presentation from the 2011 Water Peer Review includes in which principal investigator Alla Weinstein discusses project progress in development of a floating offshore wind structure - the WindFloat - and incorporation therin of a Spherical Wave Energy Device.

  6. Articles about Offshore Wind

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    unprecedented information on offshore wind patterns, making it possible to harness wind power in entirely new locations.

    Mon, 07 Dec 2015 18:52:00 +0000...

  7. Research Facilities | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photo of five wind turbines of varying sizes in the background and an office building in the foreground. Field Test Sites A photo of two people wearing hard hats in front of a wind ...

  8. Wind Energy Basics | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... How Wind Turbines Work U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Photo of a girl and a boy standing beneath a large wind turbine. Students can ...

  9. Distributed Wind 2015

    Energy.gov [DOE]

    Distributed Wind 2015 is committed to the advancement of both distributed and community wind energy. This two day event includes a Business Conference with sessions focused on advancing the...

  10. NREL: Wind Research - Events

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Events Below are upcoming events related to wind energy technology. December 2015 Wind and Water Power Small Business Voucher Open House December 2, 2015, 9:00 - 1:00 MST Boulder,...

  11. See the Wind

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Engineers are also concerned about wind shear and turbulence as this can cause a great deal of stress on their gearbox and bearings in their turbines. Characterizing Shear and Wind ...

  12. Distributed Wind Energy Workshop

    Energy.gov [DOE]

    Join instructor Brent Summerville for a fun and interactive workshop at Appalachian State University's Small Wind Research and Demonstration Site. Learn about a variety of distributed wind energy...

  13. Wind Vision | Department of Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    A New Era for Wind Power in the United States The Wind Vision report updates the Department of Energy's 2008 20% Wind Energy by 2030 through analysis of scenarios of wind power ...

  14. WIND ENERGY | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    WIND ENERGY WIND ENERGY WIND ENERGY POSTER (3.22 MB) More Documents & Publications WIND ENERGY Download LPO's Illustrated Poster Series LPO Financial Performance Report DOE-LPO_Email-Update_001_Through_1

  15. 2007 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    7 News Below are news stories related to Wind. RSS Learn about RSS. June 27, 2007 U.S., Danish laboratories to cooperate on wind energy research NREL and Denmark's Risø National Laboratory, Technical University of Denmark (DTU), have signed an agreement to cooperate closely on improving wind energy technologies. June 25, 2007 Large Wind Turbine Blade Test Facilities to be in Mass., Texas NREL will work with consortiums from Texas and Massachusetts to design, build and operate new facilities to

  16. High-Compression-Ratio; Atkinson-Cycle Engine Using Low-Pressure Direct Injection and Pneumatic-Electronic Valve Actuation Enabled by Ionization Current and Foward-Backward Mass Air Flow Sensor Feedback

    SciTech Connect

    Harold Schock; Farhad Jaberi; Ahmed Naguib; Guoming Zhu; David Hung

    2007-12-31

    This report describes the work completed over a two and one half year effort sponsored by the US Department of Energy. The goal was to demonstrate the technology needed to produce a highly efficient engine enabled by several technologies which were to be developed in the course of the work. The technologies included: (1) A low-pressure direct injection system; (2) A mass air flow sensor which would measure the net airflow into the engine on a per cycle basis; (3) A feedback control system enabled by measuring ionization current signals from the spark plug gap; and (4) An infinitely variable cam actuation system based on a pneumatic-hydraulic valve actuation These developments were supplemented by the use of advanced large eddy simulations as well as evaluations of fuel air mixing using the KIVA and WAVE models. The simulations were accompanied by experimental verification when possible. In this effort a solid base has been established for continued development of the advanced engine concepts originally proposed. Due to problems with the valve actuation system a complete demonstration of the engine concept originally proposed was not possible. Some of the highlights that were accomplished during this effort are: (1) A forward-backward mass air flow sensor has been developed and a patent application for the device has been submitted. We are optimistic that this technology will have a particular application in variable valve timing direct injection systems for IC engines. (2) The biggest effort on this project has involved the development of the pneumatic-hydraulic valve actuation system. This system was originally purchased from Cargine, a Swedish supplier and is in the development stage. To date we have not been able to use the actuators to control the exhaust valves, although the actuators have been successfully employed to control the intake valves. The reason for this is the additional complication associated with variable back pressure on the exhaust valves when

  17. Wind Energy Markets, 2. edition

    SciTech Connect

    2007-11-15

    The report provides an overview of the global market for wind energy, including a concise look at wind energy development in key markets including installations, government incentives, and market trends. Topics covered include: an overview of wind energy including the history of wind energy production and the current market for wind energy; key business drivers of the wind energy market; barriers to the growth of wind energy; key wind energy trends and recent developments; the economics of wind energy, including cost, revenue, and government subsidy components; regional and national analyses of major wind energy markets; and, profiles of key wind turbine manufacturers.

  18. Wind farm electrical system

    DOEpatents

    Erdman, William L.; Lettenmaier, Terry M.

    2006-07-04

    An approach to wind farm design using variable speed wind turbines with low pulse number electrical output. The output of multiple wind turbines are aggregated to create a high pulse number electrical output at a point of common coupling with a utility grid network. Power quality at each individual wind turbine falls short of utility standards, but the aggregated output at the point of common coupling is within acceptable tolerances for utility power quality. The approach for aggregating low pulse number electrical output from multiple wind turbines relies upon a pad mounted transformer at each wind turbine that performs phase multiplication on the output of each wind turbine. Phase multiplication converts a modified square wave from the wind turbine into a 6 pulse output. Phase shifting of the 6 pulse output from each wind turbine allows the aggregated output of multiple wind turbines to be a 24 pulse approximation of a sine wave. Additional filtering and VAR control is embedded within the wind farm to take advantage of the wind farm's electrical impedence characteristics to further enhance power quality at the point of common coupling.

  19. Wind power outlook 2006

    SciTech Connect

    anon.

    2006-04-15

    This annual brochure provides the American Wind Energy Association's up-to-date assessment of the wind industry in the United States. This 2006 general assessment shows positive signs of growth, use and acceptance of wind energy as a vital component of the U.S. energy mix.

  20. Wind Economic Development (Postcard)

    SciTech Connect

    Not Available

    2011-08-01

    The U.S. Department of Energy's Wind Powering America initiative provides information on the economic development benefits of wind energy. This postcard is a marketing piece that stakeholders can provide to interested parties; it will guide them to the economic development benefits section on the Wind Powering America website.

  1. Wind power soars

    SciTech Connect

    Flavin, C.

    1996-12-31

    Opinions on the world market for wind power are presented in this paper. Some data for global wind power generating capacity are provided. European and other markets are discussed individually. Estimated potential for wind power is given for a number of countries. 3 figs.

  2. Wind Vision | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Information Resources » Wind Vision Wind Vision Wind Vision About In support of the President's strategy to diversify our nation's clean energy mix, an elite team of researchers, academics, scientists, engineers, and wind industry experts revisited the findings of the Energy Department's 2008 20% Wind by 2030 report and built upon its findings to conceptualize a new vision for wind energy through 2050. The Wind Vision Report takes America's current installed wind power capacity across all

  3. Wind for Schools Curriculum Brief

    SciTech Connect

    2010-08-01

    This fact sheet provides an overview of wind energy curricula as it relates to the Wind for Schools project.

  4. WINDExchange: Wind Maps and Data

    WindExchange

    Wind Maps and Data WINDExchange provides wind maps and anemometer data to help homeowners, communities, states, and regions learn more about their available wind resources and plan wind energy projects. WINDExchange also maintains more than a decade of installed capacity maps showing how wind energy has progressed across the United States over time as advances in wind technology and materials make wind resources more available. A map illustration of the United States showing the various wind

  5. Air-to-air turbocharged air cooling versus air-to-water turbocharged air cooling

    SciTech Connect

    Moranne, J.-P.; Lukas, J.J.

    1984-01-01

    In Europe, turbocharged air in diesel engines used in on-road vehicles is cooled only by air. It is expected that by 1990, ten to twelve percent of European heavy trucks with diesel engines will cool turbocharged air by water. Air-to-air turbocharges air cooling is reviewed and the evolution of air-to-water turbocharged air cooling presented before the two systems are compared.

  6. Design of a wind turbine-generator system considering the conformability to wind velocity fluctuations

    SciTech Connect

    Wakui, Tetsuya; Hashizume, Takumi; Outa, Eisuke

    1999-07-01

    The conformability of the rated power output of the wind turbine-generator system and of the wind turbine type to wind velocity fluctuations are investigated with a simulation model. The authors examine three types of wind turbines: the Darrieus-Savonius hybrid, the Darrieus proper and the Propeller. These systems are mainly operated at a constant tip speed ratio, which refers to a maximum power coefficient points. As a computed result of the net extracting power, the Darrieus turbine proper has little conformability to wind velocity fluctuations because of its output characteristics. As for the other turbines, large-scale systems do not always have an advantage over small-scale systems as the effect of its dynamic characteristics. Furthermore, it is confirmed that the net extracting power of the Propeller turbine, under wind direction fluctuation, is much reduced when compared with the hybrid wind turbine. Thus, the authors conclude that the appropriate rated power output of the system exists with relation to the wind turbine type for each wind condition.

  7. NREL: Wind Research - Winds of Change Blowing for Wind Farm Research...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Winds of Change Blowing for Wind Farm Research with NREL's SOWFA Tool Simulation from SOWFA that shows a number of wind turbines and how the wind is flowing between them, with the ...

  8. air force

    National Nuclear Security Administration (NNSA)

    en NNSA, Air Force Complete Successful B61-12 Life Extension Program Development Flight Test at Tonopah Test Range http:nnsa.energy.govmediaroompressreleases...

  9. Wind energy applications guide

    SciTech Connect

    anon.

    2001-01-01

    The brochure is an introduction to various wind power applications for locations with underdeveloped transmission systems, from remote water pumping to village electrification. It includes an introductory section on wind energy, including wind power basics and system components and then provides examples of applications, including water pumping, stand-alone systems for home and business, systems for community centers, schools, and health clinics, and examples in the industrial area. There is also a page of contacts, plus two specific example applications for a wind-diesel system for a remote station in Antarctica and one on wind-diesel village electrification in Russia.

  10. Wind Energy Basics | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Energy Basics We have been harnessing the wind's energy for hundreds of years. From old Holland to farms in the United States, windmills have been used for pumping water or grinding grain. Today, the windmill's modern equivalent-a wind turbine-can use the wind's energy to generate electricity. Text Version Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent

  11. Arkansas/Wind Resources/Full Version | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Distributed Wind Energy Association Arkansas Wind Resources Arkansas Energy Office: Wind AWEA State Wind Energy Statistics: Arkansas Southeastern Wind Coalition...

  12. Wind energy conversion system

    DOEpatents

    Longrigg, Paul

    1987-01-01

    The wind energy conversion system includes a wind machine having a propeller connected to a generator of electric power, the propeller rotating the generator in response to force of an incident wind. The generator converts the power of the wind to electric power for use by an electric load. Circuitry for varying the duty factor of the generator output power is connected between the generator and the load to thereby alter a loading of the generator and the propeller by the electric load. Wind speed is sensed electro-optically to provide data of wind speed upwind of the propeller, to thereby permit tip speed ratio circuitry to operate the power control circuitry and thereby optimize the tip speed ratio by varying the loading of the propeller. Accordingly, the efficiency of the wind energy conversion system is maximized.

  13. Kansas Wind Energy Consortium

    SciTech Connect

    Gruenbacher, Don

    2015-12-31

    This project addresses both fundamental and applied research problems that will help with problems defined by the DOE “20% Wind by 2030 Report”. In particular, this work focuses on increasing the capacity of small or community wind generation capabilities that would be operated in a distributed generation approach. A consortium (KWEC – Kansas Wind Energy Consortium) of researchers from Kansas State University and Wichita State University aims to dramatically increase the penetration of wind energy via distributed wind power generation. We believe distributed generation through wind power will play a critical role in the ability to reach and extend the renewable energy production targets set by the Department of Energy. KWEC aims to find technical and economic solutions to enable widespread implementation of distributed renewable energy resources that would apply to wind.

  14. Great Plains Wind Energy Transmission Development Project

    SciTech Connect

    Brad G. Stevens, P.E.; Troy K. Simonsen; Kerryanne M. Leroux

    2012-06-09

    In fiscal year 2005, the Energy & Environmental Research Center (EERC) received funding from the U.S. Department of Energy (DOE) to undertake a broad array of tasks to either directly or indirectly address the barriers that faced much of the Great Plains states and their efforts to produce and transmit wind energy at the time. This program, entitled Great Plains Wind Energy Transmission Development Project, was focused on the central goal of stimulating wind energy development through expansion of new transmission capacity or development of new wind energy capacity through alternative market development. The original task structure was as follows: Task 1 - Regional Renewable Credit Tracking System (later rescoped to Small Wind Turbine Training Center); Task 2 - Multistate Transmission Collaborative; Task 3 - Wind Energy Forecasting System; and Task 4 - Analysis of the Long-Term Role of Hydrogen in the Region. As carried out, Task 1 involved the creation of the Small Wind Turbine Training Center (SWTTC). The SWTTC, located Grand Forks, North Dakota, consists of a single wind turbine, the Endurance S-250, on a 105-foot tilt-up guyed tower. The S-250 is connected to the electrical grid on the 'load side' of the electric meter, and the power produced by the wind turbine is consumed locally on the property. Establishment of the SWTTC will allow EERC personnel to provide educational opportunities to a wide range of participants, including grade school through college-level students and the general public. In addition, the facility will allow the EERC to provide technical training workshops related to the installation, operation, and maintenance of small wind turbines. In addition, under Task 1, the EERC hosted two small wind turbine workshops on May 18, 2010, and March 8, 2011, at the EERC in Grand Forks, North Dakota. Task 2 involved the EERC cosponsoring and aiding in the planning of three transmission workshops in the midwest and western regions. Under Task 3, the

  15. Wind Power Curve Modeling in Simple and Complex Terrain

    SciTech Connect

    Bulaevskaya, V.; Wharton, S.; Irons, Z.; Qualley, G.

    2015-02-09

    Our previous work on wind power curve modeling using statistical models focused on a location with a moderately complex terrain in the Altamont Pass region in northern California (CA). The work described here is the follow-up to that work, but at a location with a simple terrain in northern Oklahoma (OK). The goal of the present analysis was to determine the gain in predictive ability afforded by adding information beyond the hub-height wind speed, such as wind speeds at other heights, as well as other atmospheric variables, to the power prediction model at this new location and compare the results to those obtained at the CA site in the previous study. While we reach some of the same conclusions at both sites, many results reported for the CA site do not hold at the OK site. In particular, using the entire vertical profile of wind speeds improves the accuracy of wind power prediction relative to using the hub-height wind speed alone at both sites. However, in contrast to the CA site, the rotor equivalent wind speed (REWS) performs almost as well as the entire profile at the OK site. Another difference is that at the CA site, adding wind veer as a predictor significantly improved the power prediction accuracy. The same was true for that site when air density was added to the model separately instead of using the standard air density adjustment. At the OK site, these additional variables result in no significant benefit for the prediction accuracy.

  16. Wind Vision | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind Vision Wind Vision Wind Vision Introduction U.S. Wind Power Impacts Roadmap Download Wind Vision: A New Era for Wind Power in the United States The Wind Vision report updates the Department of Energy's 2008 20% Wind Energy by 2030 through analysis of scenarios of wind power supplying 10% of national end-use electricity demand by 2020, 20% by 2030, and 35% by 2050. With more than 4.5% of the nation's electricity supplied by wind energy today, the Department of Energy has collaborated with

  17. WINDExchange: Where Is Wind Power?

    WindExchange

    Where Is Wind Power? WINDExchange offers maps to help you visualize the wind resource at a local level and to show how much wind power has been installed in the United States. How much wind power is on my land? Go to the wind resource maps. Go to the wind resource maps. Go to the wind resource maps. If you want to know how much wind power is in a particular area, these wind resource maps can give you a visual indication of the average wind speeds to a local level such as a neighborhood. These

  18. Directives Tools

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    Useful links and resources for Directives Writers, Directives Point of Contact (DPCs), Subject Matter Experts (SMEs), and Draft Directive Reviewers.

  19. 2014 WIND POWER PROGRAM PEER REVIEW-DISTRIBUTED WIND

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Distributed Wind March 24-27, 2014 Wind Energy Technologies PR-5000-62152 2 Contents Distributed Wind Annual Market Report on Wind Technologies in Distributed Applications & Distributed Wind Policy Comparison Tool-Alice Orrell, Pacific Northwest National Laboratory Government, Industry, International Partnerships-Karin Sinclair, National Renewable Energy Laboratory Certifying Distributed Wind Turbines-Brent Summerville, Small Wind Certification Council Loads Analysis and Standards

  20. Chaninik Wind Group: Wind Heat Smart Grids

    Office of Environmental Management (EM)

    Wind Heat System Components * ETS heat output at high is equivalent to a Toyostove Laser 56 * .10 per kwh is equivalent to buying diesel at 2.90 per gallon * Current diesel ...

  1. Small Wind Guidebook/Is Wind Energy Practical for Me | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind GuidebookIs Wind Energy Practical for Me < Small Wind Guidebook Jump to: navigation, search Print PDF WIND ENERGY STAKEHOLDER ENGAGEMENT & OUTREACHSmall Wind Guidebook...

  2. Diagnostic Mass-Consistent Wind Field Monte Carlo Dispersion Model

    Energy Science and Technology Software Center

    1991-01-01

    MATHEW generates a diagnostic mass-consistent, three-dimensional wind field based on point measurements of wind speed and direction. It accounts for changes in topography within its calculational domain. The modeled wind field is used by the Langrangian ADPIC dispersion model. This code is designed to predict the atmospheric boundary layer transport and diffusion of neutrally bouyant, non-reactive species as well as first-order chemical reactions and radioactive decay (including daughter products).

  3. Nebraska wind resource assessment first year results

    SciTech Connect

    Hurley, P.J.F.; Vilhauer, R.; Stooksbury, D.

    1996-12-31

    This paper presents the preliminary results from a wind resource assessment program in Nebraska sponsored by the Nebraska Power Association. During the first year the measured annual wind speed at 40 meters ranged from 6.5 - 7.5 m/s (14.6 - 16.8 mph) at eight stations across the state. The site selection process is discussed as well as an overview of the site characteristics at the monitoring locations. Results from the first year monitoring period including data recovery rate, directionality, average wind speeds, wind shear, and turbulence intensity are presented. Results from the eight sites are qualitatively compared with other midwest and west coast locations. 5 figs., 2 tabs.

  4. WINDExchange: Wind Energy Market Sectors

    WindExchange

    Market Sectors Printable Version Bookmark and Share Utility-Scale Wind Distributed Wind Motivations for Buying Wind Power Buying Wind Power Selling Wind Power Wind Energy Market Sectors U.S. power plants generate electricity for homes, factories, and businesses from a variety of resources, including coal, hydro, natural gas, nuclear, petroleum, and (non-hydro) renewable resources such as wind and solar energy. This power generation mix varies significantly across the country depending on

  5. Fuel cell stack with passive air supply

    DOEpatents

    Ren, Xiaoming; Gottesfeld, Shimshon

    2006-01-17

    A fuel cell stack has a plurality of polymer electrolyte fuel cells (PEFCs) where each PEFC includes a rectangular membrane electrode assembly (MEA) having a fuel flow field along a first axis and an air flow field along a second axis perpendicular to the first axis, where the fuel flow field is long relative to the air flow field. A cathode air flow field in each PEFC has air flow channels for air flow parallel to the second axis and that directly open to atmospheric air for air diffusion within the channels into contact with the MEA.

  6. ARM - Campaign Instrument - met-air

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govInstrumentsmet-air Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Meteorological Instrumentation aboard Aircraft (MET-AIR) Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the list of all available measurements, including those recorded for diagnostic or quality assurance purposes. Horizontal wind

  7. SERI Wind Energy Program

    SciTech Connect

    Noun, R. J.

    1983-06-01

    The SERI Wind Energy Program manages the areas or innovative research, wind systems analysis, and environmental compatibility for the U.S. Department of Energy. Since 1978, SERI wind program staff have conducted in-house aerodynamic and engineering analyses of novel concepts for wind energy conversion and have managed over 20 subcontracts to determine technical feasibility; the most promising of these concepts is the passive blade cyclic pitch control project. In the area of systems analysis, the SERI program has analyzed the impact of intermittent generation on the reliability of electric utility systems using standard utility planning models. SERI has also conducted methodology assessments. Environmental issues related to television interference and acoustic noise from large wind turbines have been addressed. SERI has identified the causes, effects, and potential control of acoustic noise emissions from large wind turbines.

  8. Wind turbine reliability :understanding and minimizing wind turbine operation and maintenance costs.

    SciTech Connect

    Walford, Christopher A. (Global Energy Concepts. Kirkland, WA)

    2006-03-01

    Wind turbine system reliability is a critical factor in the success of a wind energy project. Poor reliability directly affects both the project's revenue stream through increased operation and maintenance (O&M) costs and reduced availability to generate power due to turbine downtime. Indirectly, the acceptance of wind-generated power by the financial and developer communities as a viable enterprise is influenced by the risk associated with the capital equipment reliability; increased risk, or at least the perception of increased risk, is generally accompanied by increased financing fees or interest rates. This paper outlines the issues relevant to wind turbine reliability for wind turbine power generation projects. The first sections describe the current state of the industry, identify the cost elements associated with wind farm O&M and availability and discuss the causes of uncertainty in estimating wind turbine component reliability. The latter sections discuss the means for reducing O&M costs and propose O&M related research and development efforts that could be pursued by the wind energy research community to reduce cost of energy.

  9. Wind vs. Biofuels: Addressing Climate, Health and Energy

    SciTech Connect

    Professor Mark Jacobson

    2007-01-29

    The favored approach today for addressing global warming is to promote a variety of options: biofuels, wind, solar thermal, solar photovoltaic, geothermal, hydroelectric, and nuclear energy and to improve efficiency. However, by far, most emphasis has been on biofuels. It is shown here, though, that current-technology biofuels cannot address global warming and may slightly increase death and illness due to ozone-related air pollution. Future biofuels may theoretically slow global warming, but only temporarily and with the cost of increased air pollution mortality. In both cases, the land required renders biofuels an impractical solution. Recent measurements and statistical analyses of U.S. and world wind power carried out at Stanford University suggest that wind combined with other options can substantially address global warming, air pollution mortality, and energy needs simultaneously.

  10. Wind versus Biofuels for Addressing Climate, Health, and Energy

    SciTech Connect

    Jacobson, Mark Z.

    2007-01-29

    The favored approach today for addressing global warming is to promote a variety of options: biofuels, wind, solar thermal, solar photovoltaic, geothermal, hydroelectric, and nuclear energy and to improve efficiency. However, by far, most emphasis has been on biofuels. It is shown here, though, that current-technology biofuels cannot address global warming and may slightly increase death and illness due to ozone-related air pollution. Future biofuels may theoretically slow global warming, but only temporarily and with the cost of increased air pollution mortality. In both cases, the land required renders biofuels an impractical solution. Recent measurements and statistical analyses of U.S. and world wind power carried out at Stanford University suggest that wind combined with other options can substantially address global warming, air pollution mortality, and energy needs simultaneously.

  11. ARM - Lesson Plans: Winds

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Winds Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Lesson Plans: Winds Objective The objective of this activity is to investigate how pressure differences create wind. Materials Each student or group of students will need the following: Balloon (long balloons or round ones) Bicycle pump

  12. Enabling Wind Power Nationwide

    SciTech Connect

    Jose, Zayas; Michael, Derby; Patrick, Gilman; Ananthan, Shreyas; Lantz, Eric; Cotrell, Jason; Beck, Fredic; Tusing, Richard

    2015-05-01

    Leveraging this experience, the U.S. Department of Energy’s (DOE’s) Wind and Water Power Technologies Office has evaluated the potential for wind power to generate electricity in all 50 states. This report analyzes and quantifies the geographic expansion that could be enabled by accessing higher above ground heights for wind turbines and considers the means by which this new potential could be responsibly developed.

  13. Vertical Axis Wind Turbine

    Energy Science and Technology Software Center

    2002-04-01

    Blade fatigue life is an important element in determining the economic viability of the Vertical-Axis Wind Turbine (VAWT). VAWT-SAL Vertical Axis Wind Turbine- Stochastic Aerodynamic Loads Ver 3.2 numerically simulates the stochastic (random0 aerodynamic loads of the Vertical-Axis Wind Turbine (VAWT) created by the atomspheric turbulence. The program takes into account the rotor geometry, operating conditions, and assumed turbulence properties.

  14. Research Staff | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research Staff Learn more about the expertise and technical skills of the wind energy research team and staff at NREL by reading their biographical information. Photo of Daniel Laird Daniel Laird Center Director Dr. Daniel Laird is director of the National Wind Technology Center (NWTC). Laird also serves as an executive committee member of the U.S. Department of Energy's (DOE's) Atmosphere to Electrons Wind Plant Optimization Initiative and provides leadership in the focus areas of high-fidelity

  15. 2014 News | Wind | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4 News Below are news stories related to Wind. RSS Learn about RSS. November 12, 2014 NREL Research Facilitates Several Multi-Party Collaborations in Advanced Controls NREL's two Advanced Controls Research Turbines are providing the basis for several collaborative research projects involving multiple partners to advance the state-of-the-art wind turbine controls. November 6, 2014 NREL Analyzes Floating Offshore Wind Technology for Statoil NREL engineers traveled to Oslo, Norway, to meet with

  16. Energy in the Wind

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Provi and BP Energy in the Wind - Exploring Basic Electrical Concepts by Modeling Wind Turbines Curriculum: Wind Power (simple machines, aerodynamics, weather/climatology, leverage, mechanics, atmospheric pressure, and energy resources/transformations) Grade Level: High School Small groups: 2 students Time: Introductory packet will take 2-3 periods. Scientific investigation will take 2-3 periods. (45-50 minute periods) Summary: Students explore basic electrical concepts. Students are introduced

  17. WINDExchange: Buying Wind Power

    WindExchange

    Buying Wind Power Individuals, communities, businesses, and government entities may decide that buying wind power to supply their energy needs is the right fit. There are several ways to purchase wind power. Green Power Marketing Green power marketing refers to green power being offered by multiple suppliers in a competitive marketplace. In states that have established retail competition, customers may be able to purchase green power from a competitive supplier. Learn more about green power

  18. Wind Energy Impacts: Slides

    WindExchange

    help to alleviate common misconceptions about wind energy. Wind Energy Impacts Photo from Invenergy LLC, NREL 14371 Wildlife impacts vary by location,* and new developments have helped to reduce these effects. Photo from LuRay Parker, NREL 17429 Wind Energy Impacts Pre- and post-development studies, educated siting, and curtailment during high-activity periods have decreased wildlife impacts.** Additional strategies are being researched to better understand and further decrease impacts.

  19. Silver Star Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Star Wind Farm Jump to: navigation, search Name Silver Star Wind Farm Facility Silver Star Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  20. University of Delaware Wind | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name University of Delaware Wind Facility University of Delaware Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner University of...