IDK. A municipality of Kvaløya in Norway were warned against even touching their own tap water, after highly toxic machine oil used to lube windmills had leaked into their reservoire of drinking water. I know this, because I grew up there. So windmills aren't all fun and games, and IMHO their power efficiency is questionable compared to their many alternatives. Norway used to rely solely on hydropower, and were self-sufficient on this resource for many years, but in the latter years, the developement of windmills instead of hydropower seems to be more of a political move than a scientific, or even economic one. Or, well, it's certainly good for someone's economy... But for most people it's just far more expensive, and far less efficient. And, as I've already stated, it can even be dangerous. On top of this, the blades cut down all kinds of birds, and in particular eagles, which is kind of a big deal in Norway since many of these species are on the "Red List" (i.e. in danger of becoming extinct).
