Five countries—the United States, France, China, Russia and South Korea—accounted for 71% of the world’s nuclear generation capacity, according to an EIA analysis based on IAEA Power Reactor Information System data. The figures represent the position as of June 2025.
- United States – 97 GW
- France – 63 GW
- China – 55 GW
- Russia – 27 GW
- South Korea – 26 GW
- Rest of the World – 108 GW
(Data source: EIA, IAEA Power Reactor Information System)