EcoWatch: 2013 was a banner year for clean energy, and the U.S. solar industry was no exception. California, the nations solar standout, more than doubled its rooftop solar installations last year from 1,000 megawatts (MW) to 2,000 MW.
To put this number in perspective, writes Bernadette Del Chiaro of the California Solar Energy Industries Association, it took California more than 30 years to build the first 1,000 MW of rooftop solar.
When utility-scale solar projects are added in, Californias total...