One small quibble - wind turbines produce electricity, wind mills mill grain. I know it's pedantic, but people in the industry get really irked when the machines are referred to as windmills. I don't know why exactly, maybe due to the marketing difficulties of "mills" versus "turbines" or because engineers like precise terminology.

I guess the avout of Arbre would refer to the distinction as"bulshytt" though, so take from it what you will.

edit: Ah, I see this was discussed below under another parent. Apologies if anyone takes umbrage to the distinction discussion.