Illinois · Gas

Proposed gas projects in Illinois

There are 6 proposed gas projects in Illinois's interconnection queue, totaling 1.77 GW of requested capacity. The largest is Queue J955 at 1.17 GW, and the median planned online year is 2025.

6
Proposed projects
1.77 GW
Requested capacity
295.2 MW
Average project size
2025
Median planned online year

All proposed gas projects in Illinois

TypeRegionIA Status
Queue J955
J955
GasMISOSangamonConstruction1.17 GW20182025
Queue J1839
J1839
GasMISOMaconIA Pending340.3 MW20202026
Jackson Generation
AD2-194
GasPJMWillIA Executed120 MW20182027
Three Rivers Energy Center
AD1-039
GasPJMGrundyIA Executed102.7 MW20172025
Invenergy Nelson Expansion LLC project
AH1-718
GasPJMLeeSystem Impact Study38 MW2025—
University Park Energy, LLC project
AH1-567
GasPJMWillSystem Impact Study5 MW20252025

Browse Illinois's full interconnection queue. Compare with operating capacity: 68 operating natural gas plants in Illinois. Nationwide: Natural Gas plants nationwide.

Source: "Queued Up" (Rand et al., Lawrence Berkeley National Laboratory, 2026 edition) (data as of December 31, 2025).