The chart, showing mainland Alaska, indicates that mainland Alaska has wind resources suitable with utility-scale wind power generation. The largest continuous low elevation area of good and excellent windpower is positioned in the western part of the map between Bethel and the Yukon River Delta. Coastal areas along the Bering Sea and the Arctic Ocean are likely to have good-to-excellent windpower. Exceptional wind resources are positioned on higher ridge crests crest regions all over mainland Alaska including the Brooks and Alaska Ranges and the Chugach Mountains.

A renewable energy source, airstream is classified by wind power classes, which are made from normal air velocity. The classes span from Class 1 (the lowest) to Class 7 (the top). Ordinarily, at 50 meters , windpower Class 4 or higher is effective for generating wind power with sizeable turbines. Class 4 and higher are deemed good resources. Particular areas in the Class 3 zones might have greater wind power class values at 80 meters than displayed on the 50 meter map as a result of potential high wind shear. Given the improvements in technologies, many zones in the Class 3 areas may correct for utility-scale wind power development.