Keywords: Oklahoma wind resource map 50m 800.jpg en Average annual wind power distribution for Oklahoma 50m height above ground also showing location of existing electrical transmission lines http //www windpoweringamerica gov/images/windmaps/ok_50m_800 jpg United States Department of Energy National Renewable Energy Laboratory TrueWind Solutions 2008-11-25 EERE copyright policy says its works are public domain http //www1 eere energy gov/webpolicies/ copyright http //www awstruewind com/files/OK_pwr50m pdf - more detailed commercial version PD-USGov Maps of Oklahoma Wind power in Oklahoma U S State 50 meter wind resource maps |