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Timeline · 1959

The world's nuclear fleet in 1959

In 1959, 17 nuclear reactors were operating in 4 countries, 604 MWe net, with 32 under construction.

Compared with 1958, the operating fleet grew by 5 reactors. 5 reactors were connected to the grid that year, 232 MWe, mostly in United Kingdom (4) and France (1). The countries with the most operating capacity were United Kingdom (362 MWe), Russia (105 MWe) and United States (91 MWe).

Connected to the grid in 1959

Countries by operating capacity in 1959

#CountryReactorsMWeUnder construction
1United Kingdom United Kingdom736213
2Russia Russia31052
3United States United States5917
4France France2463
5Belgium Belgium001
6Canada Canada001
7Germany Germany001
8Italy Italy002
9Slovakia Slovakia001
10Sweden 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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