Los Angeles, San Diego and Phoenix were the highest in total PV capacity, Honolulu, Indianapolis and San Jose had the most PV installed per person. A recent report authored by Environment America and the Frontier Group has 64 cities that deployed over 1.7 gigawatts (GW) of PV capacity combined, approximately the amount of solar power installed across the entire country at the end of 2010.
According to a National Renewable Energy Laboratory study, there's still incredible room for growth in solar in metropolitan areas. Los Angeles, which leads cities with 215 megawatts (MW) of solar capacity deployed, could install up to 9,000 MW of solar capacity on its rooftops. Chicago, San Antonio and New York could each install over 6,000 MW on its rooftops while nine other cities could each accommodate at least 2,000 MW of capacity.
We think this is definitely a step in the right direction!