The world's nuclear fleet in 1989
In 1989, 435 nuclear reactors were operating in 34 countries, 326.9 GWe net, with 65 under construction.
Compared with 1988, the operating fleet grew by 13 reactors. 12 reactors were connected to the grid that year, 10,792 MWe, mostly in United States (3), Germany (2) and Ukraine (2). 7 units were permanently shut down, 3,095 MWe. Mexico connected its first nuclear reactor in 1989. The countries with the most operating capacity were United States (103,779 MWe), France (52,698 MWe) and Japan (28,183 MWe).
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Connected to the grid in 1989
| Unit | Country | Type | Model | MWe |
|---|---|---|---|---|
| Greifswald 5 |  Germany | PWR | VVER-440/V-213 | 408 |
| Neckarwestheim 2 | Germany | PWR | Konvoi (KWU) | 1,310 |
| Narora 1 |  India | PHWR | — | 202 |
| Kashiwazaki Kariwa 5 |  Japan | BWR | BWR-5 | 1,067 |
| Laguna Verde 1 |  Mexico | BWR | BWR-5 | 777 |
| Hanul 2 |  South Korea | PWR | CP1 (France) | 957 |
| South Ukraine 3 |  Ukraine | PWR | VVER V-320 | 950 |
| Zaporizhzhia 5 | Ukraine | PWR | VVER V-320 | 950 |
| Torness 2 |  United Kingdom | GCR | AGR | 605 |
| Alvin W Vogtle 2 |  United States | PWR | WH 4-Loop (DRY) | 1,152 |
| Limerick 2 | United States | BWR | BWR-4 (Mark 2) | 1,134 |
| South Texas 2 | United States | PWR | WH 4-loop (DRY) | 1,280 |
Shut down in 1989
| Unit | Country | Type | Model | MWe | Grid connection |
|---|---|---|---|---|---|
| Armenian 1 |  Armenia | PWR | VVER V-270 | 376 | 1976 |
| Greifswald 5 | Germany | PWR | VVER-440/V-213 | 408 | 1989 |
| Berkeley 1 | United Kingdom | GCR | Magnox | 138 | 1962 |
| Hunterston A2 | United Kingdom | GCR | MAGNOX | 150 | 1964 |
| Fort St. Vrain | United States | HTGR | General Atomics | 330 | 1976 |
| Rancho Seco 1 | United States | PWR | WH (DRY) | 873 | 1974 |
| Shoreham | United States | BWR | GE | 820 | 1986 |
Countries by operating capacity in 1989
| # | Country | Reactors | MWe | Under construction |
|---|---|---|---|---|
| 1 | United States | 113 | 103,779 | 6 |
| 2 |  France | 56 | 52,698 | 9 |
| 3 | Japan | 38 | 28,183 | 10 |
| 4 | Germany | 26 | 23,827 | — |
| 5 |  Russia | 35 | 19,056 | 6 |
| 6 | Ukraine | 15 | 12,847 | 5 |
| 7 | United Kingdom | 39 | 12,013 | 1 |
| 8 |  Canada | 18 | 11,897 | 5 |
| 9 |  Sweden | 12 | 11,052 | — |
| 10 |  Spain | 10 | 8,190 | — |
| 11 | South Korea | 9 | 7,701 | 1 |
| 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 |  Hungary | 4 | 1,916 | — |
| 19 |  Czech Republic | 4 | 1,907 | 2 |
| 20 |  South Africa | 2 | 1,854 | — |
| 21 |  Slovakia | 4 | 1,748 | 4 |
| 22 |  Italy | 2 | 1,120 | — |
| 23 | India | 6 | 1,031 | 5 |
| 24 |  Argentina | 2 | 948 | 1 |
| 25 |  Slovenia | 1 | 696 | — |
| 26 |  Philippines | 1 | 621 | — |
| 27 |  Brazil | 1 | 609 | 1 |
| 28 |  Netherlands | 2 | 537 | — |
| 29 | Armenia | 1 | 416 | — |
| 30 |  Pakistan | 1 | 90 | — |
| 31 |  Kazakhstan | 1 | 52 | — |
| 32 | Puerto Rico | 1 | 18 | — |
| 33 | Panama | 1 | 10 | — |
| 34 |  North Korea | 1 | 5 | — |
| 35 |  China | 0 | 0 | 3 |
| 36 |  Iran | 0 | 0 | 1 |
| 37 | Mexico | 0 | 0 | 2 |
| 38 |  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.
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