The world's nuclear fleet in 1992
In 1992, 419 nuclear reactors were operating in 31 countries, 334.9 GWe net, with 57 under construction. 3 of those units are not included in the net capacity because no net figure has been published for them.
The operating fleet was the same size as in 1991. 6 reactors were connected to the grid that year, 4,806 MWe, mostly in India (2), Japan (2) and Canada (1). 4 units were permanently shut down, 2,163 MWe. The countries with the most operating capacity were United States (105,638 MWe), France (57,700 MWe) and Japan (31,994 MWe).
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Connected to the grid in 1992
| Unit | Country | Type | Model | MWe |
|---|---|---|---|---|
| Darlington 3 |  Canada | PHWR | CANDU 850 | 878 |
| Penly 2 |  France | PWR | P4 REP 1300 | 1,330 |
| Kakrapar 1 |  India | PHWR | IPHWR-220 | 202 |
| Narora 2 | India | PHWR | IPHWR-220 | 202 |
| Kashiwazaki Kariwa 3 |  Japan | BWR | BWR-5 | 1,067 |
| Ohi 4 | Japan | PWR | Mitsubishi 4-loop (M 4LP) | 1,127 |
Shut down in 1992
| Unit | Country | Type | Model | MWe | Grid connection |
|---|---|---|---|---|---|
| Saint-Laurent A-2 | France | GCR | UNGG | 465 | 1971 |
| Siberian ADE-3 |  Russia | LWGR | unknown | 167 | 1961 |
| San Onofre 1 |  United States | PWR | WH (DRY) | 436 | 1967 |
| Trojan | United States | PWR | WH (DRY) | 1,095 | 1975 |
Countries by operating capacity in 1992
| # | Country | Reactors | MWe | Under construction |
|---|---|---|---|---|
| 1 | United States | 109 | 105,638 | 3 |
| 2 | France | 56 | 57,700 | 5 |
| 3 | Japan | 42 | 31,994 | 11 |
| 4 |  Germany | 20 | 22,116 | — |
| 5 | Russia | 31 | 18,898 | 5 |
| 6 | Canada | 20 | 13,653 | 2 |
| 7 |  Ukraine | 14 | 11,922 | 5 |
| 8 |  United Kingdom | 35 | 11,351 | 1 |
| 9 |  Sweden | 12 | 11,056 | — |
| 10 |  Spain | 9 | 7,710 | — |
| 11 |  South Korea | 9 | 7,701 | 3 |
| 12 |  Belgium | 7 | 5,922 | — |
| 13 |  Taiwan | 6 | 5,052 | — |
| 14 |  Switzerland | 5 | 3,346 | — |
| 15 |  Finland | 4 | 2,794 | — |
| 16 |  Bulgaria | 5 | 2,635 | 1 |
| 17 |  Lithuania | 2 | 2,370 | — |
| 18 |  Czech Republic | 4 | 1,916 | 2 |
| 19 |  Hungary | 4 | 1,916 | — |
| 20 |  South Africa | 2 | 1,854 | — |
| 21 |  Slovakia | 4 | 1,748 | 4 |
| 22 | India | 8 | 1,435 | 6 |
| 23 |  Argentina | 2 | 943 | 1 |
| 24 |  Mexico | 1 | 777 | 1 |
| 25 |  Slovenia | 1 | 696 | — |
| 26 |  Brazil | 1 | 609 | 1 |
| 27 |  Netherlands | 2 | 537 | — |
| 28 |  Armenia | 1 | 416 | — |
| 29 |  Pakistan | 1 | 90 | — |
| 30 |  Kazakhstan | 1 | 52 | — |
| 31 |  North Korea | 1 | 5 | — |
| 32 |  China | 0 | 0 | 3 |
| 33 |  Iran | 0 | 0 | 1 |
| 34 |  Philippines | 0 | 0 | — |
| 35 |  Romania | 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.