Keywords: US rooftop photovoltaics potential.svg en US rooftop photovoltaics potential Most states could obtain from 30 to 50 of all electricity used from rooftop photovoltaics The lowest is Wyoming at 14 3 and the highest is California at 74 2 It is estimated that rooftop solar panels could generate 1432 TWh/year in the United States 38 6 of the total Alaska and Hawaii are not included Efficiency was assumed to be 16 and if 20 panels are used the potential is increased by 25 http //www nrel gov/news/press/2016/24662 Data 2016-03-31 own Delphi234 other versions cc-zero United States solar power resources |