South Texas 1 & 2

Basic Facts:

  • Location: Bay City, Texas
  • Owner: NRG Energy (44%), City of San Antonio (40%), City of Austin (16%)
  • Operator: STP Nuclear Operating Company
  • Construction Cost: $14.5B (2018$)
  • Plant Output: 2,600 MW (Combined)
  • Property Size: 12,00 acres
  • Status: Operational
  • Employees: 1,200
  • Expected Shut Down Date: Unit 1 (2047), Unit 2 (2048)
  • Current DTF Balance: $1.0B (2018$)
  • DTF Balance Prior to Decommissioning: $1.3B (2018$)
  • Decommissioning Cost Estimate: $850M (2018$)
  • Spent Nuclear Fuel on Site: 1,412 metric tons
South Texas 1 & 2 Photo


The South Texas nuclear power station consists of two pressurized water reactors. Construction began in 1975 with licensed operations commencing in 1988 (Unit 1) and 1989 (Unit 2).

In 2017 the Nuclear Regulatory Commission granted South Texas a twenty-year license renewal for both units. Their licensed operational life currently extends to 2047 for Unit 1 and 2048 for Unit 2.


The South Texas nuclear power plant is located within Matagorda County, Texas. As of 2016, socioeconomic information is as follows:

  • Population: 47,000
  • Per Capita Annual Income: $41,000
  • Unemployment rate (not seasonally adjusted): 5.8%

The South Texas Nuclear Station is one of the largest taxpayers in Matagorda County, paying approximately $75M a year in state and local taxes.

Contact Information

Economic Development Administration Representative:

Economic Development District

Nuclear Regulatory Commission

Unless specific costing information has been provided, decommissioning costs were derived from 2017 Decommissioning Funding Status Report.
Information herein obtained from public sources. Corrections are welcome and may be directed to [email protected].

Additional Information

Constellation Energy to buy stake in Texas nuclear plant in $1.75 bln deal

June 1, 2023

Constellation Energy to buy stake in Texas power plant in $1.75 bln dealJune 1 (Reuters) – Utility firm Constellation Energy Corp (CEG.O) said on Thursday that it would acquire NRG Energy Inc’s (NRG.N) stake in a nuclear plant in Texas in a deal valued at $1.75 billion. After the transaction, Constellation will be one of […]

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