Home Solar Power Guide What will be the genuine price to be paid for solar power?

What will be the genuine price to be paid for solar power?

I am very much worried about Global warming, so to contribute something for reducing Global Warming I have decided to use Solar Panels. I want to know the cost for solar power. I am looking for 20kva system for my home but I am confused because there is no fix rate and do tell me which panel is the best in the market today and its cost. Any feedback will be appreciated.