how much noise do they make? I would not think a lot but then I haven't been around them.
I'd rather see waves make electricity but windmills are better that burning oil or coal.
As far as I know they are silent. Unlike the large fans they use around Kelseyville for frost control which are rather loud, these fans are driven by the wind and make no noise. I would say a good comparison would be a well oiled windmill. I think the wind farm is a good idea but I don't so much like that the power would be diverted out of the area.