View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. Market Data
November 3, 2021

South Texas 2, US

By Carmen

South Texas 2 is a 1,354MW nuclear reactor which is located within the premises of South Texas Project Electric Generating Station. It is located in Texas, the US. The nuclear reactor is currently generating power and is in active status. The construction on the reactor commenced in Dec, 1975. The first power from the reactor was achieved in Apr, 1989. Subsequent to trial runs the reactor finally entered into commercial operation in Jun, 1989.

PID Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Main Contractor
1028 Nuclear 1,354 1,354 Active Texas, the US Westinghouse Electric


South Texas 2 is a Generation II nuclear reactor developed by Westinghouse Electric, the main contractor for the project.

The 1,354MW reactor is operated by STP Nuclear Operating. NRG Energy, CPS Energy and Austin Energy are currently owning the project having ownership stake of 44%, 40% and 16% respectively.

The PWR reactor generates 10,503.23GWh/annum of electricity. It features 193 fuel assemblies in the core of reactor, the place where fission occurs and energy is released. Safety contol rods that are used to control the fission rate in the reactor are 28 in number.

Development Status

The reactor construction commenced in Dec, 1975 and subsequently entered into commercial operation in Jun, 1989.

Contractors Involved

Westinghouse Electric was selected as the steam turbine supplier for the nuclear reactor. The company provided 1 steam turbine for the project. Bechtel was selected as an architect engineer for the reactor. The reactor system was supplied by Westinghouse Electric. The reactor vessel has been supplied by Westinghouse Electric. The material used for the construction of the vessel is Alloyed Steel (SA-533-B-CL-1). The civil works were carried out by Ebasco Services.

About Westinghouse Electric

Westinghouse Electric Co LLC (Westinghouse) a subsidiary of Toshiba Corporation, is a nuclear energy company. It offers nuclear plant products, technologies, nuclear fuel, plant design and related services to utilities across the world. The company carries out development, licensing, detailed engineering, project management, component manufacturing and offers startup support for new nuclear plants. It provides a comprehensive range of nuclear fuel and operating plant products and services; and decontamination and decommissioning, and waste management services. The company operates through regional offices in the Americas, Asia, Europe, the Middle East and Africa. Westinghouse is headquartered in Cranberry Township, Pennsylvania, the US.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

Related Companies

NEWSLETTER Sign up Tick the boxes of the newsletters you would like to receive. The top stories of the day delivered to you every weekday. A weekly roundup of the latest news and analysis, sent every Wednesday. The power industry's most comprehensive news and information delivered every month.
I consent to GlobalData UK Limited collecting my details provided via this form in accordance with the Privacy Policy


Thank you for subscribing to Power Technology