Kill the subsidies and hopefully it will kill green energy!
This article stated that close to 80% of US windmills are located in House republican districts, and, that close to 75% of US manufacturers manufacturing windmill components are located in House republican districts.
This article also stated that the House republicans purposely left the windmill tax credit out of the legislation so that Grassley could have a role in, and take credit for, putting the windmill tax credit in, because that would politically beneficial to him at home in Iowa, where windmills are an economic boom.