These solar cells wouldn't be economical where I live. I pay $0.08 per KWh for nuclear power and live at 40deg N latitude. So I pay 32% the cost per KWh this man does and get less sunlight. Even if I received the same amount of sunlight it would take (assuming his math is correct @ 12 years repayment time) 38 years to make the money back (150% rated lifespan). If I cared about up time, I could get a UPS +generator for my house and still be ahead.

Dr.Kleiner got his high pitched voice.