Combustion Engineering 2-loop
The Combustion Engineering 2-loop is a Generation II pressurised water reactor from Combustion Engineering. 7 units are operating and 0 are under construction, out of 8 on record.
Combustion Engineering built PWRs with two loops and two very large steam generators rather than three or four smaller ones, and with no separate pressuriser spray from the cold leg. Calvert Cliffs, Millstone 2, St. Lucie, Waterford and Palo Verde's predecessors are all CE plants. The company was absorbed into ABB and then Westinghouse, so the design line ends here in the West and continues in Korea.
| Vendor | Combustion Engineering |
|---|---|
| Reactor type | Pressurised water reactor (PWR) |
| Generation | II |
| Capacity range | 850–1200 MWe gross |
| Also recorded as | CE 2LP (DRYAMB)in the source tracker |
| Coolant | Light water |
| Typical enrichment | 3–5% U-235 |
| United States | 8 units, 7 operating |
|---|
How long it took to build
Years from construction start to grid connection, for units with both dates on record. The median across 8 finished units is 6.3 years.
| Unit | Country | Started | Connected | Years |
|---|---|---|---|---|
| Palisades nuclear power plant 1 | United States | 1967 | 1971 | 4.8 |
| Calvert Cliffs nuclear power plant 1 | United States | 1968 | 1975 | 6.6 |
| Millstone nuclear power plant 2 | United States | 1969 | 1975 | 6.0 |
| St. Lucie nuclear power plant 1 | United States | 1970 | 1976 | 5.9 |
| Calvert Cliffs nuclear power plant 2 | United States | 1968 | 1976 | 8.5 |
| Arkansas Nuclear One nuclear power plant 2 | United States | 1968 | 1978 | 10.1 |
| St. Lucie nuclear power plant 2 | United States | 1977 | 1983 | 6.0 |
| Waterford nuclear power plant 3 | United States | 1974 | 1985 | 10.3 |
All Combustion Engineering 2-loop units
| Unit | Country | Status | Gross MW | Online |
|---|---|---|---|---|
| Arkansas Nuclear One nuclear power plant 2 | United States | 1,065 | 1980 | |
| Calvert Cliffs nuclear power plant 1 | United States | 918 | 1975 | |
| Calvert Cliffs nuclear power plant 2 | United States | 911 | 1977 | |
| Millstone nuclear power plant 2 | United States | 918 | 1975 | |
| St. Lucie nuclear power plant 1 | United States | 1,045 | 1976 | |
| St. Lucie nuclear power plant 2 | United States | 1,050 | 1983 | |
| Waterford nuclear power plant 3 | United States | 1,250 | 1985 | |
| Palisades nuclear power plant 1 | United States | Retired | 850 | 1971 |
Sources
- Combustion Engineering 2-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