PlanetTurbine.com

United States - Wind Resource Map
This map shows the annual average wind power estimates at 50 meters above the surface of the United States.  It is a combination of high resolution and low resolution datasets produced by NREL and other organizations.  The data was screened to eliminate areas unlikely to be developed onshore due to land use or environmental issues.  In many states, the wind resource on this map is visually enhanced to better show the distribution on ridge crests and other features.

Download this document in pdf format WindMap_US Dept of Energy.pdf