The U.S. fleet of electric power generators is undergoing transformational change electricity generation from coal-fired resources little decreased , while electricity generation from natural gas‒fired and non-hydro renewable resources increased. But not all technologies or regions are experiencing changes equally.Nuclear and hydroelectric generation outputs are relatively flat, Fossil fuels are the largest sources of energy for electricity generation 1.Natural gas was the largest source—about 35%—of U.S. electricity generation in 2018. Natural gas is used in steam turbines and gas turbines to generate electricity. 2.Coal was the second-largest energy source for U.S. electricity generation in 2018—about 27%. Nearly all coal-fired power plants use steam turbines. A few coal-fired power plants convert coal to a gas for use in a gas turbine to generate electricity. 3.Petroleum was the source of less than 1% of U.S. electricity generation in 2018. Residual fuel...
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