Illinois
Nuclear accounted for 49% of generation in Illinois over the 12 months to July 2026.
Where they are
Every announced project in Illinois with a recorded location; 172 sites.
Nuclear49%Natural gas17%Coal15%Wind13%Solar6%
| Fuel | GWh | Share | YoY |
|---|---|---|---|
| Nuclear | 96,522 | 49.2% | ↓ 2.1 |
| Natural gas | 33,276 | 16.9% | ↑ 0.3 |
| Coal | 28,995 | 14.8% | ↓ 0.4 |
| Wind | 26,017 | 13.2% | ↑ 0.2 |
| Solar | 11,524 | 5.9% | ↑ 2.0 |
| Hydro | 24 | 0.0% | – |
What’s standing
The 8 largest of 1,084 operating generators; 52.8 GW total capacity.
- Braidwood Generation StationNuclear · Constellation Nuclear1.2 GW1988
- Byron Generating StationNuclear · Constellation Nuclear1.2 GW1985
- Braidwood Generation StationNuclear · Constellation Nuclear1.2 GW1988
- Byron Generating StationNuclear · Constellation Nuclear1.2 GW1987
- LaSalle Generating StationNuclear · Constellation Nuclear1.2 GW1984
- LaSalle Generating StationNuclear · Constellation Nuclear1.2 GW1984
- Clinton Power StationNuclear · Constellation Nuclear1.1 GW1987
- Quad Cities Generating StationNuclear · Constellation Nuclear1.0 GW1972
On the drawing board
Illinois has 52.8 GW standing. Another 1.9 GW is on the board by 2026: 1.4 GW testing, 0.5 GW under construction.
Built since July 2026
- Archtop SolarStanding37 MW2026
- Archtop SolarStanding25 MW2026
- Ridge Farm Renewables LLC PVStanding4 MW2026
- Archtop SolarStanding49 MW2026
- Archtop SolarStanding61 MW2026
- Gracy Solar 1, LLCStanding5 MW2026
- Wild Cat Solar 22 LLCStanding2 MW2026
- Paris Solar, LLCStanding5 MW2026
- CVE US IL Ridge Farm 324 LLCStanding3 MW2026
- Gerstenschlager Family Solar 1, LLCStanding5 MW2026
- AlliumStanding5 MW2026
- KN07Standing5 MW2026
- Cottonwood - ILTesting5 MW2026
- Pivot Energy IL 55 LLCTesting3 MW2026
- Pivot Energy IL 52Testing5 MW2026
- NL IL BracevilleTesting5 MW2026
- GillardUnder construction5 MW2026
- SolitudeUnder construction5 MW2026
- Northlake 2-SLCHI302Under construction2 MW2026
- SV CSG CorbellTesting2 MW2026
- SV CSG Roxana 1Testing3 MW2026
- SV CSG NaplateTesting4 MW2026
- SV CSG Angelly 1Testing4 MW2026
- Argenta SolarUnder construction2 MW2026
Illinois' announced projects could add 21.7 TWh a year by 2031. Our projection includes 13.9 TWh after applying completion factors based on project status.
Illinois in the news
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