Solar H2O could be done for a very low cost if you're all resourceful-like. Hell, you could probably do it for nearly free if you knew where to look.
Photovoltaics will probably run you a minimum of $4400 per KW.
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"I got 350 heads on a 305 engine. I get 10 miles to the gallon. I ain't got no good intentions." - The Drive By Truckers.
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