Vendor · United States
Nuclear reactors supplied by Westinghouse
Westinghouse is recorded as the nuclear steam supply system (NSSS) supplier of 90 units in 12 countries, per the IAEA PRIS register: 69 operating with 68,591 MWe net and 21 shut down.
Origin of the commercial pressurized water reactor; its 2-, 3- and 4-loop designs and the AP1000 were built on four continents. By country: United States (59), Spain (6) and South Korea (6). By technology: 89 PWR and 1 PHWR. The first unit was connected in 1957 and the most recent in 2024. The most powerful unit in operation is South Texas 1, in the United States, with 1,280 MWe. 21 units have been permanently shut down.
PRIS supplier codes: WH, WH/MHI, EL/WEST · Reference · Names per IAEA, Nuclear Power Reactors in the World 2025, table 25
Units with a Westinghouse nuclear steam supply system
| Unit | Country | Type | Model | MWe | Grid connection | Status |
|---|---|---|---|---|---|---|
| Shippingport |  United States | PWR | Pressurized Light Water Breeder Reactor (LWBR) (PLWBR) | 60 | 1957 | Shut down |
| Yankee Rowe | United States | PWR | WH (DRY) | 167 | 1960 | Shut down |
| BR3 3 |  Belgium | PWR | — | 10 | 1962 | Shut down |
| Carolinas-Virginia Tube Reactor | United States | PHWR | — | 17 | 1963 | Shut down |
| Enrico Fermi |  Italy | PWR | Westinghouse 4-loop (WH 4LP) | 260 | 1964 | Shut down |
| Connecticut Yankee | United States | PWR | WH (DRY) | 560 | 1967 | Shut down |
| San Onofre 1 | United States | PWR | WH (DRY) | 436 | 1967 | Shut down |
| Jose Cabrera 1 |  Spain | PWR | Westinghouse 1-loop (WH 1LP) | 141 | 1968 | Shut down |
| Beznau 1 |  Switzerland | PWR | Westinghouse 2-loop (WH 2LP) | 365 | 1969 | Operating |
| Robert Emmett Ginna | United States | PWR | Westinghouse 2-loop (WH 2LP) | 560 | 1969 | Operating |
| Mihama 1 |  Japan | PWR | Westinghouse 2-loop (WH 2LP) | 320 | 1970 | Shut down |
| H. B. Robinson 2 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 741 | 1970 | Operating |
| Point Beach 1 | United States | PWR | Westinghouse 2-loop (WH 2LP) | 591 | 1970 | Operating |
| Beznau 2 | Switzerland | PWR | Westinghouse 2-loop (WH 2LP) | 365 | 1971 | Operating |
| Point Beach 2 | United States | PWR | Westinghouse 2-loop (WH 2LP) | 591 | 1972 | Operating |
| Surry 1 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 838 | 1972 | Operating |
| Turkey Point nuclear power station 3 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 837 | 1972 | Operating |
| Indian Point 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 998 | 1973 | Shut down |
| Prairie Island 1 | United States | PWR | Westinghouse 2-loop (WH 2LP) | 522 | 1973 | Operating |
| Surry 2 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 838 | 1973 | Operating |
| Turkey Point nuclear power station 4 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 821 | 1973 | Operating |
| Zion 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,040 | 1973 | Shut down |
| Zion 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,040 | 1973 | Shut down |
| Takahama 1 | Japan | PWR | Mitsubishi 3-loop (M 3LP) | 780 | 1974 | Operating |
| Ringhals 2 |  Sweden | PWR | Westinghouse 3-loop (WH 3LP) | 852 | 1974 | Shut down |
| Kewaunee | United States | PWR | Westinghouse 2-loop (WH 2LP) | 566 | 1974 | Shut down |
| Prairie Island 2 | United States | PWR | Westinghouse 2-loop (WH 2LP) | 519 | 1974 | Operating |
| Donald C Cook 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,030 | 1975 | Operating |
| Trojan | United States | PWR | WH (DRY) | 1,095 | 1975 | Shut down |
| Beaver Valley 1 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 908 | 1976 | Operating |
| Indian Point 3 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,030 | 1976 | Shut down |
| Salem 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,169 | 1976 | Operating |
| Ohi 1 | Japan | PWR | Westinghouse 4-loop (WH 4LP) | 1,120 | 1977 | Shut down |
| Kori 1 |  South Korea | PWR | WH 60 | 576 | 1977 | Shut down |
| Joseph M Farley 1 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 874 | 1977 | Operating |
| Ohi 2 | Japan | PWR | Westinghouse 4-loop (WH 4LP) | 1,120 | 1978 | Shut down |
| Donald C Cook 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,168 | 1978 | Operating |
| North Anna 1 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 948 | 1978 | Operating |
| Ringhals 3 | Sweden | PWR | Westinghouse 3-loop (WH 3LP) | 1,081 | 1980 | Operating |
| North Anna 2 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 944 | 1980 | Operating |
| Sequoyah 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,152 | 1980 | Operating |
| Krško 1 |  Slovenia | PWR | Westinghouse 2-loop (WH 2LP) | 696 | 1981 | Operating |
| Almaraz 1 | Spain | PWR | Westinghouse 3-loop (WH 3LP) | 1,011 | 1981 | Operating |
| Joseph M Farley 2 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 883 | 1981 | Operating |
| McGuire 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,158 | 1981 | Operating |
| Salem 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,158 | 1981 | Operating |
| Sequoyah 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,139 | 1981 | Operating |
| Angra 1 |  Brazil | PWR | Westinghouse 2-loop (WH 2LP) | 609 | 1982 | Operating |
| Ringhals 4 | Sweden | PWR | Westinghouse 3-loop (WH 3LP) | 1,134 | 1982 | Operating |
| Virgil C Summer 1 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 973 | 1982 | Operating |
| Kori 2 | South Korea | PWR | WH F | 640 | 1983 | Operating |
| Almaraz 2 | Spain | PWR | Westinghouse 3-loop (WH 3LP) | 1,006 | 1983 | Operating |
| Ascó 1 | Spain | PWR | Westinghouse 3-loop (WH 3LP) | 995 | 1983 | Operating |
| McGuire 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,158 | 1983 | Operating |
| Maanshan 1 |  Taiwan | PWR | Westinghouse 3-loop (WH 3LP) | 936 | 1984 | Shut down |
| Callaway 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,215 | 1984 | Operating |
| Diablo Canyon 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,138 | 1984 | Operating |
| Kori 3 | South Korea | PWR | WH F | 996 | 1985 | Operation suspended |
| Kori 4 | South Korea | PWR | WH F | 1,001 | 1985 | Operation suspended |
| Ascó 2 | Spain | PWR | Westinghouse 3-loop (WH 3LP) | 997 | 1985 | Operating |
| Maanshan 2 | Taiwan | PWR | Westinghouse 3-loop (WH 3LP) | 938 | 1985 | Shut down |
| Byron 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,164 | 1985 | Operating |
| Catawba 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,160 | 1985 | Operating |
| Diablo Canyon 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,118 | 1985 | Operating |
| Wolf Creek | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,200 | 1985 | Operating |
| Hanbit 1 | South Korea | PWR | WH F | 965 | 1986 | Operation suspended |
| Hanbit 2 | South Korea | PWR | WH F | 952 | 1986 | Operating |
| Catawba 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,150 | 1986 | Operating |
| Millstone 3 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,210 | 1986 | Operating |
| Vandellos 2 | Spain | PWR | Westinghouse 3-loop (WH 3LP) | 1,047 | 1987 | Operating |
| Alvin W Vogtle 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,150 | 1987 | Operating |
| Beaver Valley 2 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 905 | 1987 | Operating |
| Braidwood 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,194 | 1987 | Operating |
| Byron 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,136 | 1987 | Operating |
| Shearon Harris 1 | United States | PWR | Westinghouse 3-loop (WH 3LP) | 964 | 1987 | Operating |
| Braidwood 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,160 | 1988 | Operating |
| South Texas 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,280 | 1988 | Operating |
| Alvin W Vogtle 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,152 | 1989 | Operating |
| South Texas 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,280 | 1989 | Operating |
| Comanche Peak 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,205 | 1990 | Operating |
| Seabrook 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,246 | 1990 | Operating |
| Comanche Peak 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,195 | 1993 | Operating |
| Watts Bar 1 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,157 | 1996 | Operating |
| Watts Bar 2 | United States | PWR | Westinghouse 4-loop (WH 4LP) | 1,164 | 2016 | Operating |
| Haiyang 1-1 |  China | PWR | AP1000 | 1,170 | 2018 | Operating |
| Haiyang 1-2 | China | PWR | AP1000 | 1,170 | 2018 | Operating |
| Sanmen 1-1 | China | PWR | AP1000 | 1,157 | 2018 | Operating |
| Sanmen 1-2 | China | PWR | AP1000 | 1,157 | 2018 | Operating |
| Alvin W Vogtle 3 | United States | PWR | AP1000 | 1,117 | 2023 | Operating |
| Alvin W Vogtle 4 | United States | PWR | AP1000 | 1,117 | 2024 | Operating |
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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