St Clair County, Illinois — Interconnection Projects
The interXdata warehouse tracks 39 interconnection projects in St Clair, Illinois, representing 3,938 MW of requested capacity.
39Total projects
2Active
25Operational
7Withdrawn
3,938 MWRequested capacity
Technology mix
| Technology | Projects | Requested capacity |
|---|---|---|
| Other | 13 | 1,782 MW |
| Solar | 17 | 1,104 MW |
| Battery | 6 | 1,050 MW |
| Gas | 3 | 2 MW |
Projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| Prairie State Generating Station | 55856_PC1 | Other | 883.0 MW | operational | St Clair, Illinois |
| Prairie State Generating Station | 55856_PC2 | Other | 883.0 MW | operational | St Clair, Illinois |
| 7ASTER - 7CMDR 345.0kV | J2697 | Solar | 500.0 MW | withdrawn | St. Clair, Illinois |
| Turkey Hill 345kV | J3200 | Battery | 250.0 MW | withdrawn | St. Clair, Illinois |
| Fayetteville Bee Hollow Road 138kV Substation | J2998 | Battery | 200.0 MW | operational | St. Clair, Illinois |
| DUPO FERRY | J2204 | Battery | 200.0 MW | withdrawn | St. Clair, Illinois |
| 4PREST - 4BALDWIN 138.0kV | J2645 | Solar | 199.0 MW | withdrawn | St. Clair, Illinois |
| Herzog | J3297 | Battery | 150.0 MW | withdrawn | St. Clair, Illinois |
| Fayetteville Bee Hollow Road | S1077 | Battery | 150.0 MW | operational | St. Clair, Illinois |
| Bee Hollow Solar, LLC | 69874_BHSF | Solar | 150.0 MW | active | St Clair, Illinois |
| Turkey Hill 138 kV | J3184 | Solar | 145.0 MW | operational | St. Clair, Illinois |
| Prairie State Plant Switchyard 345 kV | J3011 | Battery | 100.0 MW | withdrawn | St. Clair, Illinois |
| Tap on line Fayetteville 138kV (endpoint A) to HERZOG 138kV (endpoint B) | J3069 | Solar | 70.0 MW | withdrawn | St. Clair, Illinois |
| AES Belleville Solar LLC | 65127_BELL | Solar | 9.9 MW | operational | St Clair, Illinois |
| South Belleville Solar, LLC | 69421_SOUBE | Solar | 5.0 MW | operational | St Clair, Illinois |
| St. Clair Solar 5 | 69006_STC5 | Solar | 5.0 MW | operational | St Clair, Illinois |
| SV CSG East St Louis | 68934_EAST1 | Solar | 5.0 MW | active | St Clair, Illinois |
| Freeburg | 943_7 | Other | 2.6 MW | suspended | St Clair, Illinois |
| SV CSG Reifschneider III A, LLC | 70152_REF3A | Solar | 2.0 MW | operational | St Clair, Illinois |
| SV CSG Reifschneider II A, LLC | 70157_REF2A | Solar | 2.0 MW | operational | St Clair, Illinois |
| SV CSG Reifschneider II B, LLC | 70151_REF2B | Solar | 2.0 MW | operational | St Clair, Illinois |
| Schmidt CSG 1 | 67685_SHMT2 | Solar | 2.0 MW | operational | St Clair, Illinois |
| St. Clair Solar 3 | 68232_STCL3 | Solar | 2.0 MW | operational | St Clair, Illinois |
| SV CSG Reifschneider I B, LLC | 70156_REF1B | Solar | 2.0 MW | operational | St Clair, Illinois |
| Freeburg | 943_12 | Other | 1.8 MW | operational | St Clair, Illinois |
| Freeburg | 943_9 | Other | 1.8 MW | operational | St Clair, Illinois |
| Freeburg | 943_6 | Other | 1.8 MW | operational | St Clair, Illinois |
| Freeburg | 943_10 | Other | 1.8 MW | operational | St Clair, Illinois |
| SCS American Bottoms 009885 Sauget, LLC | 64362_30004 | Solar | 1.8 MW | operational | St Clair, Illinois |
| Freeburg | 943_11 | Other | 1.8 MW | operational | St Clair, Illinois |
| Freeburg | 943_8 | Other | 1.8 MW | operational | St Clair, Illinois |
| SV CSG Reifschneider I A, LLC | 70155_REF1A | Solar | 1.0 MW | operational | St Clair, Illinois |
| Freeburg | 943_4 | Other | 1.0 MW | suspended | St Clair, Illinois |
| Milam Gas Recovery | 50566_GEN3 | Gas | 0.8 MW | operational | St Clair, Illinois |
| Milam Gas Recovery | 50566_GEN2 | Gas | 0.8 MW | operational | St Clair, Illinois |
| Milam Gas Recovery | 50566_GEN1 | Gas | 0.8 MW | operational | St Clair, Illinois |
| Freeburg | 943_3 | Other | 0.6 MW | suspended | St Clair, Illinois |
| Freeburg | 943_2 | Other | 0.4 MW | suspended | St Clair, Illinois |
| Freeburg | 943_1 | Other | 0.4 MW | suspended | St Clair, Illinois |
Top developers
Developer attribution is not yet resolved for this set.
Explore related data
Source last checked2026-07-31
Data last materially changed2026-08-27
Page data generated2026-08-27
Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned); MISO — generator interconnection queue. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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