Power plant · Texas, United States
South Texas Project
South Texas Project is a power plant in Texas, United States, with 2,709 MW of capacity, owned by Constellation Nuclear (44%), City of San Antonio - (TX) (40%) and Austin Energy (16%).
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Texas | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Operating | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1988 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Constellation Nuclear (44%) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | City of San Antonio - (TX) (40%) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Austin Energy (16%) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | STP Nuclear Operating Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 2,709 MW | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Nuclear | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 28.7950, -96.0481 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
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How it compares
South Texas Project is the 2nd-largest of 117 power plants in Texas and the 19th-largest of 800 in the United States by capacity; its 2,709 MW is 0.32% of the 839,036 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Texas | 2nd of 117 | 102,590 MW | 2.6% |
| United States | 19th of 800 | 839,036 MW | 0.32% |
| All power plants in our data | 19th of 4,829 | 1,037,268 MW | 0.26% |
Owners, operator and place
More from Constellation Nuclear
- Peach Bottom2,876 MW
- Braidwood Generation Station2,450 MW
- Byron Generating Station2,450 MW
- PSEG Salem Generating Station2,382 MW
- LaSalle Generating Station2,340 MW
- Limerick2,277 MW
- Dresden Generating Station2,019 MW
- Quad Cities Generating Station2,019 MW
Other power plants in Texas
- W A Parish4,008 MW
- Comanche Peak2,430 MW
- Martin Lake2,380 MW
- Forney Energy Center1,894 MW
- Limestone1,850 MW
- Sabine1,812 MW
- Oak Grove (TX)1,795 MW
- Midlothian Energy Facility1,734 MW
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.