Explore the largest natural gas power plants expected to come online in Illinois and see all proposed natural gas projects on a map.
Last updated: May 2026
On this page, you can explore our database of planned natural gas power plants in Illinois. Each month, we track projects in development and update our list of the largest natural gas power plants expected to come online in Illinois.
As of May 2026, there are 13 natural gas power plants in development in Illinois, according to Cleanview's project tracker. Their total planned capacity is 6,809 MW. See also: operating natural gas power plants in Illinois→
Planned Projects
13
Planned Capacity
6,809 MW
Map of planned natural gas power plants in Illinois. Marker size reflects planned capacity.
1,263 MW
Expected Online: February 2025
Location: Grundy, Illinois
1,261 MW
Expected Online: January 2027
Location: Will, Illinois
1,165 MW
Expected Online: January 2025
Location: Sangamon County, Illinois
638 MW
Expected Online: June 2030
Location: Sangamon, Illinois
638 MW
Expected Online: June 2030
Location: Sangamon, Illinois
391 MW
Expected Online: May 2028
Location: Lee, Illinois
391 MW
Expected Online: TBD
Location: Lee, Illinois
340 MW
Expected Online: November 2026
Location: Macon, Illinois
328 MW
Expected Online: June 2025
Location: Will, Illinois
4 MW
Expected Online: October 2026
Location: Cook, Illinois
4 MW
Expected Online: October 2026
Location: Cook, Illinois
340 MW
Expected Online: November 2026
Location: Macon, Illinois
1,261 MW
Expected Online: January 2027
Location: Will, Illinois
Cleanview