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Mississippi   Mississippi Profile

State Profile and Energy Estimates

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Profile Overview

Quick Facts

  • The 1,443-megawatt Grand Gulf Nuclear Power Station in Port Gibson, Mississippi, is the largest single-reactor nuclear power plant by generating capacity in the nation. The plant generated about 10% of the state's electricity in 2020.
  • Mississippi's Pascagoula oil refinery is the nation's 10th-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.
  • Mississippi is one of the few states with large underground salt caverns capable of storing natural gas, and the state has about one-fourth of total U.S. underground salt cavern natural gas storage capacity.
  • Natural gas accounted for about 80% of Mississippi's electricity net generation in 2020 and was the primary fuel used at 9 of the state's 10 largest power plants. 
  • Mississippi consumes about three times more energy that it produces, and its energy-intensive economy ranks sixth among the states in the amount of energy used to produce one dollar of GDP.

Last Updated: August 19, 2021

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