The world's nuclear fleet in 1962
In 1962, 33 nuclear reactors were operating in 7 countries, 2.1 GWe net, with 43 under construction.
Compared with 1961, the operating fleet grew by 10 reactors. 11 reactors were connected to the grid that year, 907 MWe, mostly in United Kingdom (5), United States (3) and Belgium (1). Belgium, Canada and Germany connected their first nuclear reactor in 1962. The countries with the most operating capacity were United Kingdom (955 MWe), United States (717 MWe) and Russia (272 MWe).
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Connected to the grid in 1962
| Unit | Country | Type | Model | MWe |
|---|---|---|---|---|
| BR3 3 |  Belgium | PWR | — | 10 |
| Nuclear Power Demonstration (NPD) |  Canada | PHWR | CANDU | 22 |
| Kahl |  Germany | BWR | BWR | 16 |
| Berkeley 1 |  United Kingdom | GCR | Magnox | 138 |
| Berkeley 2 | United Kingdom | GCR | Magnox | 138 |
| Bradwell 1 | United Kingdom | GCR | Magnox | 123 |
| Bradwell 2 | United Kingdom | GCR | Magnox | 123 |
| Dounreay DFR | United Kingdom | FBR | unknown | 11 |
| Big Rock Point |  United States | BWR | BWR-1 | 67 |
| Indian Point 1 | United States | PWR | unknown | 257 |
| SM-1A | United States | PWR | unknown | 2 |
Countries by operating capacity in 1962
| # | Country | Reactors | MWe | Under construction |
|---|---|---|---|---|
| 1 | United Kingdom | 13 | 955 | 13 |
| 2 | United States | 10 | 717 | 9 |
| 3 |  Russia | 4 | 272 | 3 |
| 4 |  France | 3 | 86 | 5 |
| 5 | Canada | 1 | 22 | 1 |
| 6 | Germany | 1 | 16 | 4 |
| 7 | Belgium | 1 | 10 | — |
| 8 |  Italy | 0 | 0 | 3 |
| 9 |  Japan | 0 | 0 | 2 |
| 10 |  Slovakia | 0 | 0 | 1 |
| 11 |  Sweden | 0 | 0 | 1 |
| 12 |  Switzerland | 0 | 0 | 1 |
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.
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