Explore the largest nuclear power plants in Illinois and see all the utility-scale nuclear projects in Illinois on a map.
Last updated: May 2026
On this page, you can explore our real-time database of nuclear power plants in Illinois. Each month, we track nuclear projects and update our list of the largest nuclear power plants in Illinois.
As of May 2026, there are 6 utility-scale nuclear power plants in Illinois, according to Cleanview's project tracker. Their total operating capacity is 12,415 MW.
Total Nuclear Power Plants
6
Total Capacity
12,415 MW
Built in 2025
0
Map of nuclear power plants in Illinois. Marker size reflects capacity — only facilities with reported capacity data are shown.
2,450 MW
Year Operational: October 1988
Location: Will, Illinois
2,450 MW
Year Operational: August 1987
Location: Ogle, Illinois
2,340 MW
Year Operational: October 1984
Location: LaSalle, Illinois
2,019 MW
Year Operational: October 1971
Location: Grundy, Illinois
2,019 MW
Year Operational: December 1972
Location: Rock Island, Illinois
1,138 MW
Year Operational: November 1987
Location: DeWitt, Illinois
2,450 MW
Year Operational: October 1988
Location: Will, Illinois
1,138 MW
Year Operational: November 1987
Location: DeWitt, Illinois
2,450 MW
Year Operational: August 1987
Location: Ogle, Illinois
2,340 MW
Year Operational: October 1984
Location: LaSalle, Illinois
2,019 MW
Year Operational: December 1972
Location: Rock Island, Illinois
2,019 MW
Year Operational: October 1971
Location: Grundy, Illinois
Cleanview