I've been looking into both solar and wind in anticipation of building on CC. A small wind turbine with a capacity of about 1.8kw (Skystream 3.7) will run you about $5500 in the US. Slightly smaller 1kw about $3000. Solar is comparable, I'm going to try a combination of wind and solar. The wind is pretty reliable, the sky isn't always sunny. Batteries are extra. I'm also not sure whether you could tie into the gird and sell it to BEL. Even in the States, its not always possible. You'd also have to pay shipping and duty in the neighborhood of 30%. Power ain't cheap .