Jefferson County, Illinois — Interconnection Projects
The interXdata warehouse tracks 8 interconnection projects in Jefferson, Illinois, representing 1,207 MW of requested capacity.
8Total projects
2Active
2Operational
4Withdrawn
1,207 MWRequested capacity
Technology mix
| Technology | Projects | Requested capacity |
|---|---|---|
| Solar | 5 | 657 MW |
| Battery | 3 | 550 MW |
Projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| West Mt. Vernon | J2497 | Battery | 300.0 MW | withdrawn | Jefferson, Illinois |
| 7PR STATE - 7MTVERNW 345.0kV | J3878 | Solar | 300.0 MW | withdrawn | Jefferson, Illinois |
| 4WLTNVL TP 138 kV | J3031 | Battery | 200.0 MW | operational | Jefferson, Illinois |
| Walton Shell Substation 138KV | J3847 | Solar | 200.0 MW | withdrawn | Jefferson, Illinois |
| Casey Fork Solar, LLC | 69578_CFSPV | Solar | 150.0 MW | active | Jefferson, Illinois |
| West Mt Vernon - Xenia 345kV Line (J1241) | J1655 | Battery | 50.0 MW | withdrawn | Jefferson, Illinois |
| Harper Creek Solar, LLC | 70001_HARPC | Solar | 5.0 MW | active | Jefferson, Illinois |
| Marlow Solar, LLC CSG | 64122_MARL | Solar | 2.0 MW | operational | Jefferson, 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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