The US would require roughly the same amount of windmills per capita as Denmark. (There's a chance that the average Dane uses less energy than the average Ameri

The US would require roughly the same amount of windmills per capita as Denmark. (There's a chance that the average Dane uses less energy than the average American, but I can't be bothered to look that up...) The cost per capita in the US would be about the same as in Denmark. Probably less, due to economy of scale.