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Combined wind and solar made up at least 20% of electric generation in 10 states in 2017

Wind and solar electric generation, including small-scale solar photovoltaics, reached or exceeded 20% of total generation in 10 states in 2017. During some months in 2017, wind accounted for more than 50% of in-state electricity generation in Iowa and Kansas, and solar accounted for more than 20% of in-state electricity generation in California. Total annual generation from wind and solar in the United States in 2017 reached 8% for the year and peaked at 11% in April of that year.