By domestic I mean a single house. We're building a new one and would like to power it as much as possible with our own energy supply. I've heard there are companies that provide wind and solar solutions for homeowners. Any idea where to look for such in India? Also, are they cost-effective yet? How long to recoup the investment on average? I'm asking for actual power solutions, by the way, not things like water heaters and garden lights and such.

I've tried the Suzlon and Vestas websites and I don't see any mention of any domestic solutions. All other places I've found for solar mention only outdoor lighting and water heating. Where are the power generation options? If you know any companies that cater to this market, please share here.