Frequently Asked Questions

What is U.S. electricity generation by energy source?

In 2015, the United States generated about 4 trillion kilowatthours of electricity.About 67% of the electricity generated was from fossil fuels (coal, natural gas, and petroleum).

Major energy sources and percent share of total U.S. electricity generation in 2015:

  • Coal = 33%
  • Natural gas = 33%
  • Nuclear = 20%
  • Hydropower = 6%
  • Other renewables = 7%
    • Biomass = 1.6%
    • Geothermal = 0.4%
    • Solar = 0.6%
    • Wind = 4.7%
  • Petroleum = 1%
  • Other gases = <1%

Preliminary data; based on generation by utility-scale facilities.

Learn more:
Energy Explained: Electricity in the United States
Electric Power Monthly: Chapter 1: Net Generation
Monthly Energy Review: Electricity

Last updated: April 1, 2016


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