This chart displays that Tennessee has wind resources suitable with utility-scale wind power generation. The good and very good wind resource areas are concentrated on ridge crests in the eastern section of the map near the North Carolina boundary. Two notable areas are the ridges southeast of Knoxville and south of Johnson City. There are areas along these ridge crests that are estimated to have outstanding-to-superb windpower.

A renewable resource, wind is categorized according to wind power classes, these are created from average airstream velocity. These classes vary from Class 1 (the lowest) to Class 7 (the maximum). On the whole, at 150 feet , wind power Class 4 or higher is effective for creating wind energy with large turbines. Class 4 and above are deemed excellent energy supplies. Specific locations in the Class 3 regions might have greater wind power class values at 80 meters than displayed on the 50 meter map as a consequence of potential elevated wind shear. Given the advances in technology, some regions in the Class 3 regions may appropriate for utility-scale wind power development.