Timeline · 1961

The world's nuclear fleet in 1961

In 1961, 23 nuclear reactors were operating in 4 countries, 927 MWe net, with 44 under construction. 7 of those units are not included in the net capacity because no net figure has been published for them.

Compared with 1960, the operating fleet grew by 3 reactors. One reactor was connected to the grid that year, 167 MWe: Siberian ADE-3 (Russia). The countries with the most operating capacity were United States (451 MWe), United Kingdom (392 MWe) and France (79 MWe).

Connected to the grid in 1961

UnitCountryTypeModelMWe
Siberian ADE-3Russia RussiaLWGRunknown167

Countries by operating capacity in 1961

#CountryReactorsMWeUnder construction
1United States United States84519
2United Kingdom United Kingdom839216
3France France3793
4Russia Russia452
5Belgium Belgium001
6Canada Canada002
7Germany Germany004
8Italy Italy003
9Japan Japan002
10Slovakia Slovakia001
11Sweden Sweden001

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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