Global largest nuclear power reactors 2023, by gross capacity
The largest nuclear reactor worldwide based on gross capacity was Taishan, in China, with a gross capacity of 1,750 megawatts as of December 31, 2023. Two out of the four leading nuclear power reactors were located in France. These were Civaux and Chooz, which had a gross capacity of 1,561 and 1,560 megawatts, respectively.
That year, there were a total of 413 operational nuclear reactors and six nuclear reactors started construction across the globe.