Nebraska Wind Resource Map. US Dept of Energy.
This resource map shows wind speed estimates across the state at 50 meters above the ground. It is used to evaluate the efficiency of wind as a alternative resource.
https://www.eere.energy.gov/windandhydro/windpoweringamerica/maps_template.asp?stateab=ne
Wind Energy Resources on Tribal Land in Nebraska. US Dept of Energy.
The DOE Tribal Energy Program provides these detailed maps of wind power on tribal lands.
https://www1.eere.energy.gov/tribalenergy/guide/wind_ne.html