Calvert Cliffs
Calvert Cliffs, nuclear power plant in United States, operates 2 pressurized water reactors with 1,732 MW net installed capacity and has been in service since 1977.
Unit Calvert Cliffs 2 has been operating for 49 years, since 1977. Its 1,732 MW net are enough to supply about 5,460,000 households.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- 1,732 MWe
- First grid connection
- 1977
- Operator
- Exelon Generation
- Owner
- Exelon Corp
- Status
- Operating
See also: alerts for this plant · every plant in United States · Nuclear power plants in Maryland · Vendor: Combustion Engineering · every PWR reactor · how a PWR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Licence until | Load factor |
|---|---|---|---|---|---|---|---|---|---|---|
| Calvert Cliffs 1 | Pressurized water (PWR) | Combustion Engineering 2-loop (CE 2LP) | Operating | 877 | 2,737 | Jun 1, 1968 | Jan 3, 1975 | — | Jul 31, 2034 | 95.8 % (2024) |
| Calvert Cliffs 2 | Pressurized water (PWR) | Combustion Engineering 2-loop (CE 2LP) | Operating | 855 | 2,737 | Jun 1, 1968 | Dec 7, 1976 | — | Aug 13, 2036 | 97.8 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Calvert Cliffs 1, an 877 MWe PWR (Combustion Engineering 2-loop (CE 2LP)), started construction in 1968, was connected to the grid in 1975 and is still operating, with a 95.8% load factor in 2024.
Calvert Cliffs 2, an 855 MWe PWR (Combustion Engineering 2-loop (CE 2LP)), started construction in 1968, was connected to the grid in 1976 and is still operating, with a 97.8% load factor in 2024.
Operator: Exelon Generation.
Owner: Exelon Corp (Calvert Cliffs 1, Calvert Cliffs 2).