My main beef with windmills is they are a blight on the landscape and when they are put in, completely ruin any hunting or outdoor activity, not to mention once up, the land around them is posted. Not a big deal in the midwest, but out west it is. Notice the quote from the article, about putting them in "remote" areas, as if that is a good thing. Not a lot of remote left out there. I'm not anti- wind or solar, but sure do hate to see it installed out there in the wide open spaces.
Wind farms are usually installed in remote areas, and so infrastructure like access roads, power stations, and distribution lines must be built to accommodate their construction, which adds to the overhead costs.