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Mississippi   Mississippi Profile

State Profile and Energy Estimates

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Quick Facts

  • The 1,400-megawatt Grand Gulf Nuclear Power Station in Port Gibson, Mississippi, is the largest single-reactor nuclear power plant by net summer generating capacity in the nation. The plant generated about 16% of the state's electricity in 2023.
  • Mississippi is one of the few states with large underground salt caverns capable of storing natural gas. The state has about one-fourth of total U.S. underground salt cavern natural gas storage capacity.
  • Mississippi's Pascagoula oil refinery is the nation's 11th-largest refinery, with the capacity to process about 356,000 barrels of oil per calendar day into motor gasoline, diesel fuel, and other petroleum products. The state's three refineries account for about 2% of the nation's refining capacity.
  • Natural gas accounted for 76% of Mississippi's electricity net generation in 2023 and was the primary fuel used at 9 of the state's 10 largest power plants.
  • Mississippi has the fifth-lowest average gasoline prices among the states, but is among the top 10 states with the highest annual per capita gasoline expenditures.

Last Updated: November 21, 2024

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