Electricity generation in the U.S. 1990-2021, by fuel

In the United States, electricity derived from coal has declined over the past two decades, with the annual output dropping by more than 50 percent between 2010 and 2021. In contrast, there has been a rise in natural gas and renewable sources within the energy mix. In fact, natural gas has even surpassed coal, to become the North American country's leading source of electricity generation.

How is electricity generated in the U.S.?

Most electricity in the U.S. is generated from steam turbines, which can be powered by the use of fossil and nuclear fuels, biomass, geothermal, and solar thermal energy. Other systems such as gas turbines, hydro turbines, wind turbines, and solar photovoltaics are also major generation technologies. Electric utilities in the U.S. generated more than two thousand terawatt hours in 2021, accounting for just over half of the power output in the country that year.

Growing renewable capacity

Renewable sources have become more prominent in the U.S. in recent years, particularly wind and solar energy. The former has overtaken conventional hydropower, becoming the leading renewable energy source in the U.S. since 2019. Wind and power have also accounted for the largest share of electricity capacity additions in the country.