According to the latest issue of the U.S. Energy Information Administration's (EIA) "Electric Power Monthly" report (with data through October 31, 2017), renewable energy sources (i.e., biomass, geothermal, hydropower, solar inc. distributed PV, and wind) grew by 14.6% during the first ten months of 2017 compared to the same period in 2016 and provided 17.7% of the nation's electrical generation.
Renewables accounted for 15.2% of electrical generation a year ago.
For the first time, solar has topped 2.0% of electrical output while wind exceeded 6.0% (it actually reached 6.14%).
Hydropower accounted for 7.6% of total generation while biomass contributed 1.6%, and geothermal 0.4%.
Thus, solar and wind combined now account for a greater share of U.S. electrical generation than hydropower.
Electrical production by all renewable energy sources grew during the first ten months of 2017 with solar up by 43.3%, hydroelectric by 13.8%, wind by 12.6%, biomass by 2.2%, and geothermal by 1.9%.
By comparison, electrical generation by oil dropped by 15.9%, gas by 9.4%, coal by 2.3%, and nuclear power by 0.6%.
EIA | http://www.eia.gov