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: August 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 August 2026, there are 12 natural gas power plants in development in Illinois, according to Cleanview's project tracker. Their total planned capacity is 5,546 MW. See also: operating natural gas power plants in Illinois→
Planned Projects
12
Planned Capacity
5,546 MW
Map of planned natural gas power plants in Illinois. Marker size reflects planned capacity.
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
328 MW
Expected Online: TBD
Location: Will, Illinois
340 MW
Expected Online: November 2026
Location: Macon, Illinois
1,261 MW
Expected Online: January 2027
Location: Will, Illinois
4 MW
Expected Online: March 2027
Location: Cook, Illinois
4 MW
Expected Online: March 2027
Location: Cook, Illinois
Cleanview