World Power Plants

LaSalle County Nuclear Generating Station2,340 MW Nuclear

NuclearVerified: Mar 2026

LaSalle County Nuclear Generating Station, located in the United States of America at coordinates 41.2456, -88.6692, is an essential nuclear power plant that contributes significantly to the national energy generation framework. With an impressive capacity of 2340 MW, this facility is operated by Exelon and plays a crucial role in providing carbon-free electricity to the surrounding areas. Commissioned in 1984, LaSalle County utilizes advanced nuclear technology, which allows it to generate a large volume of energy while adhering to stringent safety and environmental standards. Its operation is vital for maintaining a stable electricity supply, particularly in the face of increasing energy demands across the region. The plant's strategic location in Illinois positions it as a key player in the Midwest energy market, enhancing the reliability of the local grid. As the United States continues to push towards cleaner energy alternatives, LaSalle County stands out as a model for sustainable energy production, showcasing the importance of nuclear power in achieving national energy goals.

Capacity
2,340 MW

2.34 GW

Commissioning Year
1982

44 years old

Owner
Exelon
Location
41.2456°, -88.6692°

United States of America, North America

Context & rankings
  • 75. largest of 10,098 plants in United States of America
  • #610 worldwide by installed capacity
  • #156 of 514 Nuclear plants worldwide
  • 0.16% of the installed capacity of United States of America
Age & fleet comparison

44 years in operation

Nuclear fleet average: 38.1 years

Operator portfolio

Exelon operates 10 plants totalling 15,655 MW

Regional density

83 plants within 100 km, 24,106 MW combined

Nearest plant: Grand Ridge Battery Projects (2.4 km)

Data provenance

Source: Wikidata

Location

Coordinates:: 41.245560, -88.669170
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

LaSalle County Nuclear Generating Station is a nuclear power plant producing approximately 17424 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~12 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Nuclear
Energy Source
Non-Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

LaSalle County Nuclear Generating Station: A Key Player in the U.S. Energy Landscape

The LaSalle County Nuclear Generating Station, located in Marseilles, Illinois, is a significant nuclear power facility in the United States, boasting a total generating capacity of 2,340 megawatts (MW). Owned and operated by Exelon Corporation, LaSalle County plays a crucial role in the regional and national energy sector, providing a substantial portion of the electricity consumed in its surrounding areas while contributing to the country's efforts toward cleaner energy production. The plant consists of two boiling water reactors, which are designed to convert nuclear energy into electrical energy through a process of nuclear fission. In these reactors, uranium fuel rods are subjected to controlled chain reactions, producing heat that is used to generate steam. This steam drives turbines connected to generators, ultimately producing electricity. The use of nuclear fuel allows for the generation of large amounts of energy from a relatively small amount of fuel, contributing to the station's high output capacity and efficiency. The LaSalle County Nuclear Generating Station is a critical component of the United States' energy mix, especially as the nation shifts towards more sustainable energy sources. Nuclear power, as exemplified by LaSalle, offers a low-carbon alternative to fossil fuels, helping to mitigate greenhouse gas emissions and combat climate change. In 2020, the facility contributed approximately 20% of Illinois's electricity and played an integral role in maintaining grid stability, particularly during peak demand periods when renewable sources may be less reliable. Despite its advantages, the environmental impact of nuclear power plants is a subject of ongoing debate. While the operation of LaSalle County does not emit air pollutants or greenhouse gases during electricity generation, concerns remain regarding the management of nuclear waste and the potential risks associated with nuclear accidents. The facility adheres to stringent regulatory standards and safety protocols set by the Nuclear Regulatory Commission (NRC) to ensure the safe handling and storage of radioactive materials. Additionally, the LaSalle County Nuclear Generating Station holds regional significance beyond its energy production capabilities. It provides employment opportunities for hundreds of local residents and supports the economy through various contracts and services associated with its operations. The plant also engages in community outreach and environmental stewardship initiatives, fostering partnerships with local organizations to promote public education on nuclear energy and safety. In conclusion, the LaSalle County Nuclear Generating Station is a vital asset to the United States' energy infrastructure. Its capacity to generate substantial amounts of electricity from nuclear fuel positions it as a key player in the transition towards a more sustainable energy future, while its operational practices highlight the importance of safety and environmental responsibility in the nuclear power sector.

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
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