United States · 28.795, -96.048South Texas
South Texas, nuclear power plant in United States, operates 2 pressurized water reactors with 2,560 MW net installed capacity and has been in service since 1988.
Unit South Texas 1 has been operating for 38 years, since 1988. Its 2,560 MW net are enough to supply about 8,060,000 households.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- 2,560 MWe
- First grid connection
- 1988
- Operator
- STP Nuclear Operating
- Owner
- Constellation Energy Corp
- Status
- Operating
See also: alerts for this plant · every plant in United States · Nuclear power plants in Texas · Vendor: Westinghouse · every PWR reactor · how a PWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Licence until | Load factor |
|---|---|---|---|---|---|---|---|---|---|---|
| South Texas 1 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Operating | 1,280 | 3,853 | Dec 22, 1975 | Mar 30, 1988 | — | Aug 20, 2047 | 84.2 % (2024) |
| South Texas 2 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Operating | 1,280 | 3,853 | Dec 22, 1975 | Apr 11, 1989 | — | Dec 15, 2048 | 84.8 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
South Texas 1, a 1,280 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1975, was connected to the grid in 1988 and is still operating, with a 84.2% load factor in 2024.
South Texas 2, a 1,280 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1975, was connected to the grid in 1989 and is still operating, with a 84.8% load factor in 2024.
Operator: STP Nuclear Operating.
Owner: Constellation Energy Corp (South Texas 1, South Texas 2).