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Wind Data

The available datasets are 50-meter height state-level and regional coverages and 25-kilometer national coverage. Please note that a 50-meter height national coverage is not available. We do not have data or contacts for Alabama, Florida, Louisiana or Mississippi. If you have questions, please contact the Webmaster.

State and national 30-meter, 80-meter, 100-meter and offshore data at 80-meter height data used in the maps located at the Wind Powering America and U.S. DOE EERE websites can be purchased from AWS TruePower.

50-Meter Resolution (50-meter height above surface)

These datasets are geographic shapefiles generated from the original raster data. The original raster data varied in resolution from 200-meter to 1000-meter cell sizes. The data provide an estimate of annual average wind resource for specific states or regions. The data are separated into two distinct groups: NREL produced, and AWS Truepower produced/NREL validated. To learn more, please see Wind Data Details.

The NREL-produced map data only applies to areas of low surface roughness (i.e. grassy plains), and excludes areas with slopes greater than 20%. For areas of high surface roughness (i.e. forests), the values shown may need to be reduced by one or more power classes. The TrueWind-produced resource estimates factor in surface roughness in their calculations, and do not exclude areas with slopes greater than 20%. These data were produced in cooperation with U.S. Department of Energy's Wind Powering America program, and have been validated by NREL and other wind energy meteorological consultants. To download state wind resource maps, visit the Wind Powering America Web site.

Geographic coordinate system name: GCS_WGS_1984

New on this table for these datasets is the option to view the data in Google Earth. To launch this capability, click on the kmz link in the KMZ Files field. Other KMZ links are available through our MapSearch Tool.

Coverage Zipped Shapefiles Last Updated Metadata KMZ Files
Alaska Wind 50m Resolution (Zip 187.3 MB) 04/25/2012 Alaska.xml AK 50m.kmz
Arizona Wind 50m Resolution (Zip 14.3 MB) 03/09/2009 Arizona.htm AZ 50m.kmz
Arkansas Wind 50m Resolution (Zip 2.3 MB) 05/18/2012 Arkansas.htm AR 50m.kmz
California Wind 50m Resolution (Zip 29.2 MB) 05/18/2012 California.htm CA 50m.kmz
Colorado Wind 50m Resolution (Zip 16.2 MB) 02/25/2009 Colorado.htm CO 50m.kmz
Connecticut Wind 50m Resolution (Zip 1.1 MB) 03/02/2009 Connecticut.htm CT 50m.kmz
Georgia Wind 50m Resolution (Zip 1.4 MB) 05/11/2012 Georgia.htm GA 50m.kmz
Hawaii Wind 50m Resolution (Zip 2.0 MB) 05/04/2009 Hawaii.htm HI 50m.kmz
Illinois Wind 50m Resolution (Zip 790 KB) 02/05/2009 Illinois.htm IL 50m.kmz
Indiana Wind 50m Resolution (Zip 2.7 MB) 03/02/2009 Indiana.htm IN 50m.kmz
Iowa Wind 50m Resolution (Zip 2.2 MB) 05/21/2012 Iowa.htm IA 50M.kmz
Kansas Wind 50m Resolution (Zip 11.5 MB) 11/23/2009 Kansas.htm KS 50m.kmz
Kentucky Wind 50m Resolution (Zip 1.8 MB) 02/25/2009 Kentucky.htm KY 50m.kmz
Maine Wind 50m Resolution (Zip 6.4 MB) 03/02/2009 Maine.htm ME 50m.kmz
Massachusetts Wind 50m Resolution (Zip 2.6 MB) 03/02/2009 Massachusetts.htm MA 50m.kmz
Michigan Wind 50m Resolution (Zip 11.6 MB) 03/02/2009 Michigan.htm MI 50m.kmz
Mid-Atlantic Regional Wind 50m Resolution
(includes Delaware, Maryland, New Jersey, North Carolina, Pennsylvania, Virginia, West Virginia and the District of Columbia)
(Zip 17.5 MB) 05/21/2012 Mid Atlantic Regional.htm Mid Atlantic 50m.kmz
Minnesota Wind 50m Resolution (Zip 1.3 MB) 06/26/2012 Minnesota.htm MN 50M.kmz
Missouri Wind 50m Resolution (Zip 9.8 MB) 03/02/2009 Missouri.htm
Nebraska Wind 50m Resolution (Zip 18.3 MB) 02/23/2009 Nebraska.htm NE 50m.kmz
Nevada Wind 50m Resolution (Zip 16.7 MB) 05/18/2012 Nevada.htm NV 50m.kmz
New England Regional Wind 50m Resolution (includes Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont) (Zip 3.2 MB) 09/30/2010 New England Regional.htm NE Regional 50m.kmz
New Hampshire Wind 50m Resolution (Zip 2.2 MB) 03/02/2009 New Hampshire.htm NH 50m.kmz
New Mexico Wind 50m Resolution (Zip 24.6 MB) 05/18/2012 New Mexico.htm NM 50m.kmz
New York Wind 50m Resolution (Zip 3.3 MB) 05/22/2012 New York.htm NY 50m.kmz
North and South Dakota Wind 50m Resolution (Zip 2.3 MB) 03/17/2009 North and South Dakota.htm ND and SD 50m.kmz
Ohio Wind 50m Resolution (Zip 3.2 MB) 03/02/2009 Ohio.htm OH 50m.kmz
Oklahoma Wind 50m Resolution (Zip 11.0 MB) 06/04/2009 Oklahoma.htm OK 50m.kmz
Pacific Northwest Regional Wind 50m Resolution (includes Idaho, Montana, Oregon, Washington and Wyoming) (Zip 53.7 MB) 06/11/2012 Pacific Northwest Regional.htm PNW 50m.kmz
Puerto Rico and Virgin Islands Wind 50m Resolution (Zip 117 KB) 04/01/2009 Puerto Rico and Virgin Islands.htm PR and VI 50m.kmz
Rhode Island Wind 50m Resolution (Zip 623 KB) 02/20/2009 Rhode Island.htm RI 50m.kmz
South Carolina Wind 50m Resolution (Zip 1.5 MB) 05/18/2012 South Carolina.htm SC 50m.kmz
Tennessee Wind 50m Resolution (Zip 321 KB) 03/02/2009 Tennessee.htm TN 50m.kmz
Texas Wind 50m Resolution (Zip 321 KB) 06/22/2012 Texas.xml TX 50m.kmz
Utah Wind 50m Resolution (Zip 16.4 MB) 05/18/2012 Utah.htm UT 50m.kmz
Vermont Wind 50m Resolution (Zip 2.2 MB) 05/18/2012 Vermont.htm VT 50m.kmz
Wisconsin Wind 50m Resolution (Zip 3.5 MB) 06/26/2012 Wisconsin.xml WI 50m.kmz

50-Meter Legend

Sample graphic to use for 50-m wind maps. JPG 46.5 KB)

90-Meter Resolution Offshore (90-meter height above surface)

Annual average offshore wind speed at a 90-meter height.

Geographic coordinate system name: GCS_WGS_1984

New on this table for these five datasets is the option to view the data in Google Earth. To launch this capability, click on the kmz link in the KMZ Files field. Other KMZ links are available through our MapSearch Tool.

Coverage Zipped Shapefiles Last Updated Metadata KMZ Files
Atlantic Coast 90m Windspeed Offshore Wind (Zip 19.7. MB) 06/26/2012 Atlantic Coast.htm Atlantic Coast 90m.kmz
Great Lakes 90m Windspeed Offshore Wind (Zip 11.8 MB) 08/23/2010 Great Lakes.htm Great Lakes 90m.kmz
Gulf of Mexico 90m Windspeed Offshore Wind (Zip 4.8 MB) 08/23/2010 Gulf of Mexico.htm Gulf of Mexico 90m.kmz
Hawaii 90m Windspeed Offshore Wind (Zip 4.2 MB) 08/23/2010 Hawaii.htm Hawaii 90m.kmz
Pacific Coast 90m Windspeed Offshore Wind (Zip 9.4 MB) 08/23/2010 Pacific Coast.htm Pacific Coast 90m.kmz

25-kilometer (25-kilometer resolution)

Description: Annual average wind resource potential for the United States (25-km). Represents wind power class at 50 m height above surface.

Projection: Geographic coordinate system name: GCS_WGS_1984

Coverage Zipped Shapefiles Last Updated Metadata
Alaska Wind 25-km (Zip 311 KB) 04/11/2011 Alaska.htm
Hawaii Wind 25-km (Zip 28 KB) 04/11/2011 Hawaii.htm
Lower 48 Wind 25-km (Zip 459 KB) 04/11/2011 Lower 48.htm

Note - These zipped shapefile datasets are designed to be used in GIS software applications.

50-Meter Resolution Legend

Western Wind Dataset

The Western Wind Dataset provides energy professionals with a consistent set of wind profiles across the western United States. This dataset provides 10-minute time-series wind data for 2004, 2005 and 2006. More than 30,000 data points are available across the western United States.

Eastern Wind Dataset

The Eastern Wind Dataset provides energy professionals with a consistent set of wind profiles for the eastern United States. This dataset provides 10-minute time-series wind data for 2004, 2005, and 2006. More than 1,326 simulated wind farms data points are available across the eastern United States.

NREL's National Wind Technology Center (NWTC) tower data

The NWTC tower data site provides links to live graphical displays and wind data from the tower located at the NWTC.

More Information

For more information on wind resources, access the resource maps page on the Wind Resource Assessment site.

If you have difficulty accessing this data because of a disability, please contact the Webmaster.