South Texas Project
8 mi. W. of Wadsworth on FM521, Wadsworth, TX 77483Plant Summary Information
South Texas Project is ranked #15 out of 11,979 power plants nationwide in terms of total annual net electricity generation.
South Texas Project is comprised of 2 generators and generated 5.5 TWh during the 3-month period between October 2024 to January 2025.
| Plant Name | South Texas Project |
|---|---|
| Utility Name | STP Nuclear Operating Co |
| Location | Matagorda County, TX |
| Initial Operation Date | August 1988 |
| Last Update | Jan 2025 |
| Annual Generation | 19.3 TWh |
| Annual Consumption | 218.8 M MMBtu |
| Ranked #15 out of 11,979 Power Plants Nationwide | |
| Ranked #13 out of 54 Nuclear Power Plants Nationwide | |
| Ranked #2 out of 774 Texas Power Plants | |
| Ranked #2 out of 2 Texas Nuclear Power Plants | |
| Fuel Types | Nuclear |
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Monthly Net Generation for South Texas Project
South Texas Project Details
| Summary Information | |
|---|---|
| Plant Name | South Texas Project (6251) |
| Plant Address | 8 mi. W. of Wadsworth on FM521, Wadsworth, TX 77483 |
| Utility | STP Nuclear Operating Co (21535) |
| Latitude, Longitude | 28.795, -96.0481 |
| Generation Dates on File | Jan 2001 to Jan 2025 |
| Initial Operation Date | August 1988 |
| Annual Generation | 19.3 TWh |
| Fuel Types | Nuclear |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | TRE |
| Balancing Authority | Electric Reliability Council of Texas, Inc. (ERCO) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Colorado River |
| Ash Impoundment | |
| Transmission / Distribution Owner | Austin Energy (1015) TX |
| Grid Voltage | 256.00 kV |
| Energy Storage | No |
Generator 1 Details Operating August 1988
| Technology | Nuclear |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Jointly Owned |
| Nameplate Capacity | 1354.3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 1300 MW |
| Winter Capacity | 1340 MW |
| Minimum Load | 1280 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | August 1988 |
|---|---|
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Nuclear |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | OVER |
| Pulverized Coal Technology | No |
| Multiple Fuels | No |
Generator 2 Details Operating June 1989
| Technology | Nuclear |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Jointly Owned |
| Nameplate Capacity | 1354.3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 1280 MW |
| Winter Capacity | 1320 MW |
| Minimum Load | 1280 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 1989 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Nuclear |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | OVER |
| Multiple Fuels | No |
South Texas Project Plant Owners
| Owner Name | Address | Generator | Ownership |
|---|---|---|---|
| Austin Energy | 4815 Mueller Blvd., Austin, TX 78723 | Generator 1 | 16.00% |
| City of San Antonio - (TX) | 500 McCullough, San Antonio, TX 78215 | Generator 1 | 40.00% |
| Constellation Nuclear | 4300 Winfield Road, Warrenville, IL 60555 | Generator 1 | 44.00% |
| Austin Energy | 4815 Mueller Blvd., Austin, TX 78723 | Generator 2 | 16.00% |
| City of San Antonio - (TX) | 500 McCullough, San Antonio, TX 78215 | Generator 2 | 40.00% |
| Constellation Nuclear | 4300 Winfield Road, Warrenville, IL 60555 | Generator 2 | 44.00% |
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Nuclear.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #3 | Browns Ferry | Decatur, AL | 29.6 TWh |
| #4 | Peach Bottom | Delta, PA | 21.9 TWh |
| #5 | Oconee | Seneca, SC | 21.6 TWh |
| #6 | McGuire | Huntersville, NC | 20.0 TWh |
| #7 | Byron Generating Station | Byron, IL | 19.8 TWh |
| #8 | TalenEnergy Susquehanna | Berwick, PA | 19.8 TWh |
| #9 | LaSalle Generating Station | Marseilles, IL | 19.5 TWh |
| #10 | Limerick | Sanatoga, PA | 19.5 TWh |
| #11 | Comanche Peak | Glen Rose, TX | 19.5 TWh |
| #12 | Braidwood Generation Station | Braceville, IL | 19.5 TWh |
| #14 | PSEG Salem Generating Station | Hancocks Bridge, NJ | 18.6 TWh |
| #15 | Watts Bar Nuclear Plant | Spring City, TN | 18.4 TWh |
| #16 | Diablo Canyon | Avila Beach, CA | 18.4 TWh |
| #17 | Catawba | York, SC | 18.4 TWh |
| #18 | Donald C Cook | Bridgman, MI | 18.0 TWh |
| #19 | Millstone | Waterford, CT | 17.2 TWh |
| #20 | North Anna | Mineral, VA | 16.0 TWh |
| #21 | Brunswick Nuclear | Southport, NC | 15.6 TWh |
| #22 | Quad Cities Generating Station | Cordova, IL | 15.5 TWh |
| #23 | Nine Mile Point Nuclear Station | Lycoming, NY | 15.4 TWh |
Nearby Power Plants
Below are closest 20 power plants surrounding South Texas Project.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Aktina Solar | El Campo, TX | 957.1 GWh | 26.5 mi |
| Brazoria County Solar Project (Danciger) | Damon, TX | 385.3 GWh | 31.6 mi |
| Brazoria West | Damon, TX | 406.0 GWh | 35.9 mi |
| Cascade Solar (TX) | Wharton, TX | 21.3 GWh | 28.4 mi |
| CFB Power Plant | Point Comfort, TX | 929.9 GWh | 31.4 mi |
| Colorado Bend Energy Center | Wharton, TX | 2.4 TWh | 34.1 mi |
| Colorado Bend II | Wharton, TX | 6.9 TWh | 34.2 mi |
| Formosa Utility Venture Ltd | Point Comfort, TX | 4.5 TWh | 30.7 mi |
| Freeport Energy | Freeport, TX | 1.9 TWh | 41.1 mi |
| Ganado Solar | Gail, TX | 324.8 GWh | 36.3 mi |
| HEB00292 | Bay City, TX | 290.0 MWh | 14 mi |
| Newgulf Cogen | NewGulf, TX | 32.9 GWh | 33.6 mi |
| Old 300 Solar Center, LLC | Needville, TX | 244.8 GWh | 39.6 mi |
| Peyton Creek Wind Farm LLC | Bay City, TX | 391.4 GWh | 11.7 mi |
| Port Comfort Power LLC | Point Comfort, TX | 70.8 GWh | 31.8 mi |
| Red Tailed Hawk Solar LLC | Pierce, TX | 257.9 GWh | 25.8 mi |
| Second Division Solar | West Columbia, TX | 21.5 GWh | 31.9 mi |
| Sweeny Cogen Facility | Old Ocean, TX | 3.1 TWh | 26.5 mi |
| Tres Bahias | Port Lavaca, TX | 407.9 GWh | 28.9 mi |
| Wagyu | Damon, TX | 205.2 GWh | 38.9 mi |