Source: U.S. Energy Information Administration, Monthly Energy Review
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Fossil fuels—petroleum, natural gas, and coal—have accounted for at least 80% of energy consumption in the United States for well over a century. Overall energy consumption in the United States reached a record high in 2018 at 101 quadrillion British thermal units (Btu), of which more than 81 quadrillion Btu were from fossil fuels. Despite the increase, the fossil fuel share of total U.S. energy consumption in 2018 increased only slightly from 2017 and was the second-lowest share since 1902.
The increase in fossil fuel consumption in 2018 was driven by increases in petroleum and natural gas consumption. Coal consumption fell by 4.3% in 2018, the fifth consecutive annual decline. U.S. consumption of coal peaked in 2005 and has declined nearly 42% since then. U.S. coal consumption fell to 687 million short tons in 2018, the lowest level of coal consumption in the United States since the 1970s.
Natural gas consumption increased in 2018, reaching a new record consumption level of 82.1 billion cubic feet per day. Natural gas consumption has increased in 8 of the past 10 years. Growth in natural gas consumption has largely been driven by increased consumption in the electric power sector. Overall, U.S. consumption of natural gas has increased by 37% since 2005.
Petroleum consumption also increased in 2018 as petroleum product supplied reached the equivalent of 20.5 million barrels per day. Despite the increase in 2018, U.S. petroleum consumption remains lower than its peak consumption level set in 2005. Petroleum has been the largest source of energy consumption in the United States since surpassing coal in 1950.
The renewable share of energy consumption in 2018, which includes hydroelectricity, biomass, and other renewables such as wind and solar, was 11.4%, slightly less than its 2017 share. The largest growth in renewables over the past decade has been in solar and wind electricity generation.
Energy consumption in the United States has undergone many changes in the nation’s history, from wood as a primary resource in the 18th and 19th centuries, to the onset of coal and petroleum use, and to the more modern rise of nuclear power in the late 20th century and renewables in the early 21st century.
The Monthly Energy Review’s pre-1949 estimates of U.S. energy use are based on two sources: Sam Schurr and Bruce Netschert’s Energy in the American Economy, 1850–1975: Its History and Prospects and the U.S. Department of Agriculture’s Circular No. 641, Fuel Wood Used in the United States 1630–1930, published in 1942.
Appendix D of EIA’s Monthly Energy Review compiles these estimates of U.S. energy consumption in ten-year increments from 1635 through 1845 and five-year increments from 1845 through 1945. Data for 1949 through the present day are available in the latest Monthly Energy Review.
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