Meanwhile, there's better windmills these days...
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HAWTS apparently aren't as great: https://youtube.com/watch?v=EM-gCvhQhPU
That's why I referred to vertical wind turbines, duh.
Sorry, I got them mixed up. I meant to say VAWTS
I'd be very interested in a tiny turbine that gives off 500W per hour to cover the basic power consumption of the house when there is no sun shining. But most stuff I see is junk, and the other stuff is way too powerful for what I need.
Good quality wind is high up.
Installing a turbine on a house is technically problematic (a mast is simpler to deal with), it is hard to maintain there and can convey noise into the house.
The advise about having a few acres of flat land as a minimum - it is sensible, unless other options beside wind cannot be chosen.
The other good option would be community ownership of a larger turbine. This would get you the lower cost per kwh and better availability that those have