Illinois
Changes to the State Energy Data System (SEDS) Notice: In October 2023, we updated the way we calculate primary energy consumption of electricity generation from noncombustible renewable energy sources (solar, wind, hydroelectric, and geothermal). Visit our Changes to 1960—2022 conversion factor for renewable energy page to learn more.
Profile Overview
Quick Facts
- Illinois is the fifth-largest energy-consuming state in the nation, and its industrial sector, which includes petroleum refining, coal mining, and agriculture, uses the most energy of any end-use sector in the state.
- Illinois ranks fourth in the nation in crude oil refining capacity behind Texas, Louisiana, and California, and the state's 4 refineries can process nearly 1 million barrels of crude oil per calendar day.
- The estimated recoverable coal reserves in Illinois are the second-largest in the nation after Montana, and the state's coal mines account for 6% of U.S. total coal production.
- Illinois is the third-largest ethanol-producing state (1.4 billion gallons annually) and the fourth-largest biodiesel fuel producer (167 million gallons).
- Illinois generates more electricity from nuclear energy than any other state, and it accounted for about 13% of U.S. nuclear power generation in 2022.
Last Updated: August 17, 2023
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