South Texas Nuclear Generating Station

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Active reactors ( gross ):

The nuclear power plant South Texas (also known as South Texas Project ( STP) ) is a nuclear power plant with two reactor blocks, southwest of Bay City in the south of the state of Texas in the United States. Shareholders include the NRG South Texas ( 44% ), daughter of NRG Energy, and the cities of San Antonio ( 40%) and Austin (16 %). Is operated by the STP Nuclear Operating Company ( STPNOC ). The nuclear power plant is located on a 49 km2 area on the Colorado River about 145 kilometers southwest of Houston. It was the first nuclear power plant in Texas.

The reactors

The reactors at the nuclear power plant South Texas are two identical pressurized water reactors with a net electrical output of 1280 MW and a gross capacity of 1354 MW. The NPP South Texas is unique in its design of systems for the safety of the reactors. Each unit has three instead of two, completely independent emergency core cooling systems (Emergency Core Cooling System ) and related systems.

History

On December 6, 1971, Houston Lighting & Power Co. (HL & P), the city of Austin, the City of San Antonio and the Central Power and Light Co. (CPL ) in front of a feasibility study for the construction of a joint subsidiary of nuclear power plants. The initial cost estimate for the power plant was 974 million U.S. dollars.

By mid- 1973, the location of the power plant in Bay City was planned, but then the decision to build the power plant on another site fell.

An application for planning permission for the plant was filed with the United States Atomic Energy Commission in May 1974. The Nuclear Regulatory Commission issued approval on 22 December 1975. Construction work on both blocks was on 22 December 1975. Until 1981, the South Texas Project was back four years behind schedule and had significant cost overruns. Brown and Root revised the schedule for completion by June 1989 and the cost estimate to 4.4 to 4.8 billion U.S. dollars.

The first block was first synchronized on 30 March 1988 with the power supply and went into commercial operation on 25 August 1988. Block 2 was first synchronized on 11 April 1989 with the power supply and went on June 19, 1989 in commercial operation.

In 2007, South Texas -2 nuclear reactor with the highest annual production was around the world. Previously, both blocks were already several times among the top five.

The future of the power plant

On June 19, 2006 NRG Energy submitted a plan to build two reactors of ABWR with a capacity of 1,358 MWe ago on the site of the nuclear power plant South Texas.

On 24 September 2007, the operator submitted a complete application with the Nuclear Regulatory Commission to build two General Electric ABWR on the grounds of the nuclear power plant. The proposed extension of the STP will have additional 2700 MW of electrical power, so the power plant will have about double the installed capacity of today.

The shutdown of the existing blocks is planned for 2027 ( Block 1) and 2028 (Block 2).

Data of the reactor units

The nuclear power plant South Texas has a total of two blocks:

Swell

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