Westinghouse 3-loop
The Westinghouse 3-loop is a Generation II pressurised water reactor from Westinghouse Electric Company. 22 units are operating and 0 are under construction, out of 25 on record.
Three loops, and the most widely exported Westinghouse configuration. It is the direct ancestor of the French CP series, which Framatome built under licence and then developed independently, and of the Korean and Spanish fleets. Surry and North Anna use a subatmospheric containment, held below ambient pressure so any leak flows inward.
| Vendor | Westinghouse Electric Company |
|---|---|
| Reactor type | Pressurised water reactor (PWR) |
| Generation | II |
| Capacity range | 800–1100 MWe gross |
| Also recorded as | WH 3LP WH 3LP (DRYAMB) WH 3LP (DRYSUB)in the source tracker |
| Coolant | Light water |
| Typical enrichment | 3–5% U-235 |
| United States | 13 units, 13 operating |
|---|---|
| Spain | 5 units, 5 operating |
| Belgium | 4 units, 2 operating |
| Sweden | 3 units, 2 operating |
How long it took to build
Years from construction start to grid connection, for units with both dates on record. The median across 25 finished units is 7.2 years.
All Westinghouse 3-loop units
Sources
- Westinghouse 3-loop, vendor documentation
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data