The use of solar power is expanding rapidly across many American cities thanks in part to local policies supporting renewable energy.
According to a recent report by Environment America, the United States now has more than 53 gigawatts (GW) of solar photovoltaic (PV) capacity installed, 26 times as much capacity as was installed at the end of 2010.
As of the end of 2017, 20 cities — representing just 0.1% of U.S. land area — accounted for over 4% of U.S. solar PV capacity. These 20 cities have over 2 GW of solar PV capacity — more solar power than the entire country had installed by the end of 2010.
