Timeline · 1981

The world's nuclear fleet in 1981

In 1981, 268 nuclear reactors were operating in 26 countries, 151 GWe net, with 191 under construction.

Compared with 1980, the operating fleet grew by 24 reactors. 23 reactors were connected to the grid that year, 20,928 MWe, mostly in France (8), United States (4) and Japan (2). 1 unit was permanently shut down, 24 MWe. Slovenia connected its first nuclear reactor in 1981. The countries with the most operating capacity were United States (58,712 MWe), France (19,597 MWe) and Japan (14,957 MWe).

Connected to the grid in 1981

UnitCountryTypeModelMWe
Blayais 1France FrancePWRCP1910
Dampierre 3France FrancePWRCP1890
Dampierre 4France FrancePWRCP1890
Gravelines 4France FrancePWRCP1910
Saint-Laurent B-1France FrancePWRCP2915
Saint-Laurent B-2France FrancePWRCP2915
Tricastin 3France FrancePWRCP1915
Tricastin 4France FrancePWRCP1915
GrafenrheinfeldGermany GermanyPWRKWU1,275
Fukushima Daini 1Japan JapanBWRBWR-51,067
Ikata 2Japan JapanPWRMitsubishi (2-loop)538
Kola 1-3Russia RussiaPWRVVER V-213411
Leningrad 1-4Russia RussiaLWGRRBMK-1000925
Krško 1Slovenia SloveniaPWRWH 2 loops696
Almaraz 1Spain SpainPWRWH 3 loops1,011
Forsmark 2Sweden SwedenBWRASEA-III, BWR-25001,121
Kuosheng 1Taiwan TaiwanBWRBWR-6985
Chernobyl 3Ukraine UkraineLWGRRBMK-1000925
Rivne 2Ukraine UkrainePWRVVER V-213376
Joseph M Farley 2United States United StatesPWRWH 3-Loop (DRY)883
McGuire 1United States United StatesPWRWH 4-Loop (ICECOND)1,158
Salem 2United States United StatesPWRWH 4-loop (DRY)1,158
Sequoyah 2United States United StatesPWRWH 4-Loop (ICECOND)1,139

Shut down in 1981

UnitCountryTypeModelMWeGrid connection
Windscale AGRUnited Kingdom United KingdomGCRAGR241963

Countries by operating capacity in 1981

#CountryReactorsMWeUnder construction
1United States United States7758,71247
2France France2919,59729
3Japan Japan2314,95711
4Germany Germany1910,48810
5Russia Russia2610,08310
6Sweden Sweden97,3503
7United Kingdom United Kingdom326,66410
8Canada Canada105,49811
9Taiwan Taiwan32,1933
10Switzerland Switzerland42,1131
11Ukraine Ukraine32,0469
12Finland Finland31,9041
13Belgium Belgium41,8624
14Italy Italy41,423
15Bulgaria Bulgaria31,2242
16Spain Spain31,0677
17Slovakia Slovakia28162
18Armenia Armenia2792
19India India46214
20South Korea South Korea15766
21Netherlands Netherlands2537
22Argentina Argentina13402
23Pakistan Pakistan190
24Kazakhstan Kazakhstan152
25 Puerto Rico118
26 Panama110
27Brazil Brazil002
28Czech Republic Czech Republic004
29Hungary Hungary004
30Iran Iran001
31Lithuania Lithuania002
32Mexico Mexico002
33Philippines Philippines001
34Slovenia Slovenia001
35South Africa South Africa002

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.

Other years