Budget Impact:

• Most of U.S. electricity is generated using fossil fuels. In 2015, coal and natural gas turbines used for about 66% of the 4 trillion kilowatt/hours of electricity generated in the United States. (Sources of U.S. electricity generation, 2015: Renewables 13%, Petroleum 1%, Nuclear 20%, Natural Gas 33%, Coal 33%)
• Residual fuel oil and petroleum coke, products from refining crude oil, are the main petroleum fuels used in steam turbines. Distillate (or diesel) fuel oil is used in diesel-engine generators.