Timeline · 2019
The world's nuclear fleet in 2019
In 2019, 440 nuclear reactors were operating in 32 countries, 392.2 GWe net, with 54 under construction.
Compared with 2018, the operating fleet shrank by 7 reactors. 6 reactors were connected to the grid that year, 5,217 MWe, mostly in Russia (3), China (2) and South Korea (1). 12 units were permanently shut down, 10,201 MWe. The countries with the most operating capacity were United States (98,152 MWe), France (63,130 MWe) and China (45,694 MWe).
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Connected to the grid in 2019
| Unit | Country | Type | Model | MWe |
|---|---|---|---|---|
| Taishan 1-2 |  China | PWR | EPR-1750 | 1,660 |
| Yangjiang 6 | China | PWR | ACPR-1000 | 1,000 |
| Akademik Lomonosov 1 |  Russia | PWR | KLT-40S | 32 |
| Akademik Lomonosov 2 | Russia | PWR | KLT-40S | 32 |
| Novovoronezh 2-2 | Russia | PWR | VVER | 1,101 |
| Saeul 2 |  South Korea | PWR | APR-1400 | 1,392 |
Shut down in 2019
| Unit | Country | Type | Model | MWe | Grid connection |
|---|---|---|---|---|---|
| Philippsburg 2 |  Germany | PWR | Siemens-KWU (KWU) | 1,402 | 1984 |
| Fukushima Daini 1 |  Japan | BWR | BWR-5 | 1,067 | 1981 |
| Fukushima Daini 2 | Japan | BWR | BWR-5 | 1,067 | 1983 |
| Fukushima Daini 3 | Japan | BWR | BWR-5 | 1,067 | 1984 |
| Fukushima Daini 4 | Japan | BWR | BWR-5 | 1,067 | 1986 |
| Genkai 2 | Japan | PWR | Mitsubishi 2-loop (M 2LP) | 529 | 1980 |
| Wolsong 1 | South Korea | PHWR | CANDU 6 | 661 | 1982 |
| Ringhals 2 |  Sweden | PWR | Westinghouse 3-loop (WH 3LP) | 852 | 1974 |
| Muehleberg 1 |  Switzerland | BWR | BWR-4 | 373 | 1971 |
| Jinshan 2 |  Taiwan | BWR | GE BWR/4, Mark I containment (BWR-4 (Mark 1)) | 604 | 1978 |
| Pilgrim 1 |  United States | BWR | GE BWR/3, Mark I containment (BWR-3 (Mark 1)) | 677 | 1972 |
| Three Mile Island 1 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 835 | 1974 |
Countries by operating capacity in 2019
| # | Country | Reactors | MWe | Under construction |
|---|---|---|---|---|
| 1 | United States | 96 | 98,152 | 2 |
| 2 |  France | 58 | 63,130 | 1 |
| 3 | China | 47 | 45,694 | 12 |
| 4 | Japan | 33 | 31,679 | 2 |
| 5 | Russia | 36 | 28,412 | 5 |
| 6 | South Korea | 24 | 22,764 | 4 |
| 7 |  Canada | 19 | 13,744 | — |
| 8 |  Ukraine | 15 | 13,107 | 2 |
| 9 |  United Kingdom | 15 | 8,923 | 2 |
| 10 | Germany | 6 | 8,113 | — |
| 11 | Sweden | 7 | 7,893 | — |
| 12 |  Spain | 7 | 7,123 | — |
| 13 |  India | 21 | 6,157 | 7 |
| 14 |  Belgium | 7 | 5,922 | — |
| 15 |  Czech Republic | 6 | 3,972 | — |
| 16 | Taiwan | 4 | 3,844 | — |
| 17 | Switzerland | 4 | 2,973 | — |
| 18 |  Finland | 4 | 2,794 | 1 |
| 19 |  Bulgaria | 2 | 2,006 | — |
| 20 |  Hungary | 4 | 1,916 | — |
| 21 |  Brazil | 2 | 1,884 | 1 |
| 22 |  Slovakia | 4 | 1,868 | 2 |
| 23 |  South Africa | 2 | 1,854 | — |
| 24 |  Argentina | 3 | 1,631 | 1 |
| 25 |  Mexico | 2 | 1,552 | — |
| 26 |  Pakistan | 5 | 1,318 | 2 |
| 27 |  Romania | 2 | 1,300 | — |
| 28 |  Iran | 1 | 915 | 1 |
| 29 |  Slovenia | 1 | 696 | — |
| 30 |  Netherlands | 1 | 482 | — |
| 31 |  Armenia | 1 | 416 | — |
| 32 |  North Korea | 1 | 5 | — |
| 33 |  Bangladesh | 0 | 0 | 2 |
| 34 |  Belarus | 0 | 0 | 2 |
| 35 |  Philippines | 0 | 0 | — |
| 36 |  Türkiye | 0 | 0 | 1 |
| 37 |  United Arab Emirates | 0 | 0 | 4 |
Data: Global Energy Monitor (CC BY 4.0), IAEA PRIS 2025, Wikipedia (CC BY-SA), Wikidata and Wikimedia Commons. Capacities in net MWe unless stated.