United States

South Texas Project Electric Generating Station — 2,709 MW Nuclear

Nuclear Verified

South Texas Project Electric Generating Station is a 2,709 MW nuclear power plant located in United States of America. View location, capacity, and technical details.

Capacity
2,709 MW

Installed

Commissioned
1988

Year online

Owner
South Texas Project Nuclear Operating Company

Operator

Location
28.80, -96.05

Coordinates

Insights

#25
largest in United States of America
#111
largest Nuclear worldwide
#399
largest worldwide
1988
at fleet average
1
operated by South Texas Project…
31
plants within 100 km

Technical Details

Fuel Type
Nuclear
Capacity
2,709 MW
Commissioned
1988
Status
Operational
Owner
South Texas Project Nuclear Operating Company
Country
United States
Coordinates
28.795, -96.048

Carbon Footprint

Annual CO₂
242,019 t

tonnes / year

Lifetime CO₂
12,100,941 t

over ~50 yrs

Intensity
12 g

Est. gCO2/kWh

Annual emissions equivalent to

52,613
cars per year
32,269
homes per year
11,000,856
trees to offset

Indicative estimate from standard life-cycle emission and capacity factors — not a measured figure. Open calculator

Nearby Plants

About this plant

The South Texas Project Electric Generating Station (STPEGS) is a prominent nuclear power facility located in the United States, specifically in Matagorda County, Texas. Commissioned in 1988, this power plant boasts a substantial generating capacity of 2,708.6 megawatts (MW), making it one of the largest nuclear power plants in the country. The facility is owned and operated by the South Texas Project Nuclear Operating Company, which is a consortium that includes several major electric utilities. STPEGS plays a vital role in the energy sector of Texas, contributing significantly to the state’s electricity supply while helping to diversify the energy mix by providing a reliable source of low-emission power.

The power plant utilizes nuclear fuel to generate electricity, primarily relying on uranium as its fuel source. In nuclear reactors, uranium undergoes fission, a process in which the nucleus of an atom splits into smaller parts, releasing a substantial amount of energy in the form of heat. This heat is then used to produce steam, which drives turbines connected to generators, thereby converting thermal energy into electrical energy. The use of nuclear fuel is characterized by its high energy density; a small amount of uranium can produce a large amount of energy compared to traditional fossil fuels. This efficiency makes nuclear power a significant contributor to energy production, especially in regions striving to reduce greenhouse gas emissions.

The environmental impact of the South Texas Project Electric Generating Station is a critical aspect of its operation. Nuclear power is known for its low emissions during operation, producing minimal air pollutants compared to fossil fuel power plants. This characteristic positions nuclear energy as a cleaner alternative in the fight against climate change and air quality degradation. However, the management of nuclear waste remains a complex issue, as spent nuclear fuel is highly radioactive and requires secure, long-term storage solutions. The facility adheres to stringent safety and environmental regulations to mitigate any potential risks associated with nuclear energy production.

Regionally, STPEGS is significant not only for its contribution to electricity generation but also for its role in the local economy. The plant provides jobs, stimulates economic activity, and supports various local businesses through its operations. It is an essential resource for the Electric Reliability Council of Texas (ERCOT), the grid operator for most of the state, ensuring a stable and dependable energy supply for millions of residents and businesses. As Texas continues to experience population growth and increasing energy demands, the South Texas Project Electric Generating Station remains a crucial player in meeting these challenges while striving for a sustainable energy future.

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