[Ed. note: resurrecting a two-year old topic from Dailykos]

A 1991 report by the American Wind Energy Association (AWEA) estimated potential US windpower generation at 10,777 million mWh, at that time nearly three times the electricity generated in the United States. A great deal has changed since that time, with improved technology lowering the kWh cost of electrcity generated from windpower, while the introduction of high resolution wind power density maps and growing cognizance of the need to exclude certain land types (urban areas, forested areas, environmentally sensitive lands) has limited the area available for development. Overall, the trend is towards lower costs (both economically and environmentally) and greatly expanded capacity.

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