The world's nuclear fleet in 1983
In 1983, 289 nuclear reactors were operating in 26 countries, 176.2 GWe net, with 182 under construction. 6 of those units are not included in the net capacity because no net figure has been published for them.
Compared with 1982, the operating fleet grew by 21 reactors. 23 reactors were connected to the grid that year, 19,247 MWe, mostly in France (4), Japan (3) and United Kingdom (3). Lithuania connected its first nuclear reactor in 1983. The countries with the most operating capacity were United States (63,077 MWe), France (24,150 MWe) and Japan (16,562 MWe).
← Previous year, 1982 · Next year, 1984 → · See this year on the map · Today's rankings
Connected to the grid in 1983
| Unit | Country | Type | Model | MWe |
|---|---|---|---|---|
| Embalse |  Argentina | PHWR | CANDU 6 | 608 |
| Pickering B6 |  Canada | PHWR | CANDU 500B | 516 |
| Blayais 3 |  France | PWR | Framatome CP1 (CP1) | 910 |
| Blayais 4 | France | PWR | Framatome CP1 (CP1) | 910 |
| Chinon B-2 | France | PWR | CP2 | 905 |
| Cruas 1 | France | PWR | CP2 | 915 |
| Kruemmel |  Germany | BWR | KWU BWR, '69 design line (BWR-69) | 1,346 |
| Madras 1 |  India | PHWR | IPHWR-220 | 205 |
| Fukushima Daini 2 |  Japan | BWR | BWR-5 | 1,067 |
| Onagawa 1 | Japan | BWR | BWR-4 | 498 |
| Sendai 1 | Japan | PWR | Mitsubishi 3-loop (M 3LP) | 846 |
| Ignalina 1 |  Lithuania | LWGR | RBMK-1500 | 1,185 |
| Kursk 1-3 |  Russia | LWGR | RBMK-1000 | 925 |
| Kori 2 |  South Korea | PWR | WH F | 640 |
| Almaraz 2 |  Spain | PWR | Westinghouse 3-loop (WH 3LP) | 1,006 |
| Ascó 1 | Spain | PWR | Westinghouse 3-loop (WH 3LP) | 995 |
| Chernobyl 4 |  Ukraine | LWGR | RBMK-1000 (RBMK) | 925 |
| Dungeness B1 |  United Kingdom | GCR | AGR | 545 |
| Hartlepool A1 | United Kingdom | GCR | AGR | 590 |
| Heysham A1 | United Kingdom | GCR | AGR | 485 |
| McGuire 2 |  United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,158 |
| San Onofre 3 | United States | PWR | Combustion Engineering 2-loop (CE 2LP) | 1,080 |
| St. Lucie 2 | United States | PWR | Combustion Engineering 2-loop (CE 2LP) | 987 |
Countries by operating capacity in 1983
| # | Country | Reactors | MWe | Under construction |
|---|---|---|---|---|
| 1 | United States | 76 | 63,077 | 43 |
| 2 | France | 33 | 24,150 | 29 |
| 3 | Japan | 25 | 16,562 | 11 |
| 4 | Germany | 20 | 11,762 | 12 |
| 5 | Russia | 27 | 10,716 | 11 |
| 6 |  Sweden | 10 | 8,484 | 2 |
| 7 | Canada | 13 | 7,309 | 9 |
| 8 | United Kingdom | 32 | 6,634 | 10 |
| 9 | Ukraine | 6 | 4,297 | 8 |
| 10 |  Belgium | 6 | 3,876 | 2 |
| 11 |  Taiwan | 4 | 3,178 | 2 |
| 12 |  Finland | 4 | 2,794 | — |
| 13 |  Switzerland | 4 | 2,113 | 1 |
| 14 | Spain | 4 | 2,078 | 6 |
| 15 | South Korea | 3 | 1,877 | 6 |
| 16 |  Bulgaria | 4 | 1,632 | 2 |
| 17 |  Italy | 3 | 1,273 | — |
| 18 |  Slovakia | 2 | 816 | 4 |
| 19 |  Armenia | 2 | 792 | — |
| 20 |  Slovenia | 1 | 696 | — |
| 21 | India | 4 | 621 | 4 |
| 22 |  Netherlands | 2 | 537 | — |
| 23 |  Hungary | 1 | 479 | 3 |
| 24 | Argentina | 1 | 335 | 2 |
| 25 |  Pakistan | 1 | 90 | — |
| 26 |  Kazakhstan | 1 | 52 | — |
| 27 |  Brazil | 0 | 0 | 2 |
| 28 |  Czech Republic | 0 | 0 | 4 |
| 29 |  Iran | 0 | 0 | 1 |
| 30 | Lithuania | 0 | 0 | 2 |
| 31 |  Mexico | 0 | 0 | 2 |
| 32 |  Philippines | 0 | 0 | — |
| 33 |  Romania | 0 | 0 | 2 |
| 34 |  South Africa | 0 | 0 | 2 |
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.