New Hampshire has wind supply consistent with large scale wind farms. The outstanding wind resource areas in the state are on the ridge crests. The White Mountain region in northern New Hampshire is the most prominent area. Certain ridge crests in the western portion of the state can also have strong wind resource.

As a renewable resource, airstream is organized according to wind power classes, these are created from typical airstream velocity. The classes span from Class 1 (the slowest) to Class 7 (the highest). In general, at 50 meters , windpower Class 4 or higher is useful for creating wind energy with big turbines. Class 4 and higher are deemed good energy supplies. Special locations in the Class 3 areas could have greater wind power classes at 80 meters than shown on the 50 meter map as a consequence of possible high wind shear. Due to the improvements in equipment, some locations in the Class 3 locations may appropriate for large scale wind power development.