Nuclear reactors supplied by Babcock & Wilcox
Babcock & Wilcox is recorded as the nuclear steam supply system (NSSS) supplier of 10 units in 1 country, per the IAEA PRIS register: 5 operating with 4,284 MWe net and 4 shut down.
Pressurized water reactors with once-through steam generators; Three Mile Island among them. By country: United States (10). By technology: 10 PWR. The first unit was connected in 1962 and the most recent in 1978. The most powerful unit in operation is Davis Besse 1, in the United States, with 894 MWe. 4 units have been permanently shut down.
PRIS supplier codes: B&W · Reference · Names per IAEA, Nuclear Power Reactors in the World 2025, table 25
Units with a Babcock & Wilcox nuclear steam supply system
| Unit | Country | Type | Model | MWe | Grid connection | Status |
|---|---|---|---|---|---|---|
| Indian Point 1 |  United States | PWR | unknown | 257 | 1962 | Shut down |
| Oconee 1 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 847 | 1973 | Operating |
| Oconee 2 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 848 | 1973 | Operating |
| Arkansas Nuclear One 1 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 836 | 1974 | Operating |
| Oconee 3 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 859 | 1974 | Operating |
| Rancho Seco 1 | United States | PWR | WH (DRY) | 873 | 1974 | Shut down |
| Three Mile Island 1 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 835 | 1974 | Restarting |
| Crystal River 3 | United States | PWR | Babcock & Wilcox lowered-loop (B&W LLP) | 860 | 1977 | Shut down |
| Davis Besse 1 | United States | PWR | Babcock & Wilcox raised-loop (B&W RLP) | 894 | 1977 | Operating |
| Three Mile Island 2 | United States | PWR | B & W (DRY) | 880 | 1978 | Shut down |
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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