Which country produces the most nuclear power?
The United States is the largest producer of nuclear power overall, generating 781,945 gigawatt-hours in 2024. China followed as the second-largest producer, at 417,518 gigawatt-hours.
Short answers, pulled from the story.
The United States is the largest producer of nuclear power overall, generating 781,945 gigawatt-hours in 2024. China followed as the second-largest producer, at 417,518 gigawatt-hours.
France has the largest share of electricity generated by nuclear power, at about 65 percent. As of 2024, France, Slovakia, Belgium and Ukraine were the only countries using nuclear power as the majority source of their electricity.
Nuclear power plants operate in 31 countries, generating about a tenth of the world's electricity. Most of that generation comes from reactors in Europe, North America and East Asia.
Italy closed all of its nuclear stations by 1990 after 1987 referendums, and Lithuania closed its RBMK reactor station in 2009 for safety reasons. Kazakhstan phased out nuclear power in June 1999, Germany completed its phaseout in 2023, and Taiwan completed its phaseout in 2025.
Austria built the Zwentendorf Nuclear Power Plant and the Philippines built the Bataan Nuclear Power Plant, but neither country ever put its plant into operation. The Philippines relaunched its nuclear programme on the 28th of February 2022 and may try to operate the Bataan plant, mothballed since 1984.
Poland was, as of 2020, in an advanced planning phase for 1.5 gigawatts of nuclear capacity, with ambitions to reach up to 9 gigawatts by 2040. Iraq declared in 2021 that it planned to build 8 nuclear reactors by 2030 to supply up to 25 percent of its electric power.