According to U.S. energy information administration, the United States uses and produces many different types and sources of energy, which can be grouped into general categories such as primary and secondary, renewable and nonrenewable, and fossil fuels.
Primary energy sources include fossil fuels (petroleum, natural gas, and coal), nuclear energy, and renewable sources of energy. Electricity is a secondary energy source that is generated (produced) from primary energy sources.
In 2021, the electric power sector accounted for about 96% of total U.S. utility-scale electricity generation, nearly all of which was sold to the other sectors.1
The transportation, industrial, commercial, and residential sectors are called end-use sectors because they consume primary energy and electricity produced by the electric power sector.
Total energy consumption by the end-use sectors includes their primary energy use, purchased electricity, and electrical system energy losses (energy conversion and other losses associated with the generation, transmission, and distribution of purchased electricity) and other energy losses.
The sources of energy used by each sector vary widely. For example, in 2021, petroleum provided approximately 90% of the transportation sector's energy consumption, but only 1% of the electric power sector's primary energy use. The chart below shows the types and amounts of primary energy sources consumed in the United States, the amounts of primary energy used by the electric power sector and the energy end-use sectors, and the retail sales of electricity by the electric power sector to the energy end-use sectors.
Domestic energy production has been greater than U.S. energy consumption since 2019.
In 2019, U.S. total annual energy production was greater than total annual consumption for the first time since 1957. Production also exceed consumption in 2020 and in 2021. In 2021, production equaled 97.78 quads and consumption equaled 97.33 quads.
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