Read here. Much like the corn ethanol initiative, wind power is promoted and subsidized by the U.S. government. This turnabout from a 90's "has-been" is primarily due to the shenanigans of the former corporate powerhouse Enron, and now GE, which acquired the Enron wind business.
Despite a lot of powerful friends, wind power is becoming reviled within the green movement and local environmentalist community. It's easy to understand why since wind power farms are not exactly appealing to local residents and it's really not a very reliable source of energy. Add to the boiling pot a government(s) jamming wind farms into areas over the protests of community residents, it becomes a recipe that may cause 'Tea Party' supporters and green activists to work in concert - viva la revolution!