It's dollars that would have been spent increasing the capacity of your local coal plant to handle peaks when evreybody's running an air conditioner. Solar ele

It's dollars that would have been spent increasing the capacity of your local coal plant to handle peaks when evreybody's running an air conditioner. Solar electric isn't a substitute for large-scale power generation, but in many areas it's a great substitute. In China rooftop solar is used for water heating. I imagine this use is more economical: http://ourdoings.com/davidsky/2010-08-08 http://ourdoings.com/davidsky/2010-08-08