Keywords: United States Wind Resources and Transmission Lines map.jpg en Map showing estimated wind resources and existing power transmission lines for the United States http //www nrel gov/gis/pdfs/windsmodel4pub1-1-9base200904enh pdf National Renewable Energy Laboratory 2007-04-19 EERE copyright policy says its works are public domain http //www1 eere energy gov/webpolicies/ copyright an older version of this map without the transmission lines is in File US wind power map png PD-USGov Energy maps of the United States Wind energy statistics of the United States Mean wind speed maps |