- Oct 1, 2020 5:14 am GMT
As of 1 July 2020, 31 countries operating 408 nuclear reactors—excluding Long-Term Outages (LTOs)—a decline of nine units compared to WNISR2019—10 less than in 1989 and 30 fewer than the 2002 peak of 438. Of the 28 reactors in LTO as of mid-2019, one was restarted, and one was closed; with five units entering the LTO category, there is, as of mid-2020, a total of 31 units in LTO as of mid-2020, all considered operating by the International Atomic Energy Agency (IAEA). These include 24 reactors in Japan (no change), three in the U.K., two in South Korea, and one each in China and India.
The total operating capacity declined by 2.1 percent from one year earlier to reach 362 GW as of mid-2020.
Annual nuclear electricity generation reached 2,657 net terawatt-hours (TWh or billion kilowatt-hours) in 2019, a 3.7 percent increase over the previous year—half of which is due to China's nuclear output increasing by over 19 percent—and only 3 TWh below the historic peak in 2006.
The "big five" nuclear generating countries—by rank, the United States, France, China, Russia and South Korea—again generated 70 percent of all nuclear electricity in the world in 2019. Two countries, the U.S. and France, accounted for 45 percent of 2019 global nuclear production, that is 2 percentage points lower than in the previous year, as France's output shrank by 3.5 percent.
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