Explore the largest natural gas power plants in Illinois and see all the utility-scale natural gas projects in Illinois on a map.
Last updated: May 2026
On this page, you can explore our real-time database of natural gas power plants in Illinois. Each month, we track natural gas projects and update our list of the largest natural gas power plants in Illinois.
As of May 2026, there are 72 utility-scale natural gas power plants in Illinois, according to Cleanview's project tracker. Their total operating capacity is 18,807 MW. See also: planned natural gas power plants in Illinois→
Total Natural Gas Power Plants
72
Total Capacity
18,807 MW
Built in 2025
0
Map of natural gas power plants in Illinois. Marker size reflects capacity — only facilities with reported capacity data are shown.
1,728 MW
Year Operational: August 2001
Location: Will, Illinois
1,300 MW
Year Operational: June 2023
Location: Grundy, Illinois
1,289 MW
Year Operational: May 2022
Location: Will, Illinois
1,256 MW
Year Operational: May 2002
Location: Kendall, Illinois
1,086 MW
Year Operational: June 2002
Location: DuPage, Illinois
726 MW
Year Operational: July 2002
Location: Will, Illinois
702 MW
Year Operational: September 2002
Location: Shelby, Illinois
692 MW
Year Operational: June 2000
Location: Will, Illinois
692 MW
Year Operational: June 2001
Location: Lee, Illinois
22 MW
Year Operational: January 2026
Location: Monroe, Illinois
1,300 MW
Year Operational: June 2023
Location: Grundy, Illinois
380 MW
Year Operational: April 2023
Location: Lee, Illinois
1,289 MW
Year Operational: May 2022
Location: Will, Illinois
7 MW
Year Operational: March 2019
Location: Stephenson, Illinois
1 MW
Year Operational: May 2017
Location: Champaign, Illinois
173 MW
Year Operational: December 2016
Location: Scott, Illinois
6 MW
Year Operational: May 2016
Location: DuPage, Illinois
628 MW
Year Operational: May 2015
Location: Lee, Illinois
Cleanview