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. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, 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. Buy the profile here.

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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. Constellation Energy Generation, CPS Energy and Austin Energy are currently owning the project having ownership stake of 44%, 40% and 16% respectively.

The PWR reactor generates 10,337.03GWh/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.

The reactor consists of 1 steam turbine.

Development status

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

Contractors involved

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.

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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. It operates through regional offices in the Americas, Asia, Europe, the Middle East and Africa. Westinghouse is headquartered in Cranberry Township, Pennsylvania, the US.

This content was updated on 25 January 2024

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GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.