CAHOKIA
Substation-AdjacentSt. Louis County, Illinois · PJM
CAHOKIA is a substation-adjacent datacenter candidate site in St. Louis County, Illinois, interconnecting through PJM. It screens at 68.6/100 DC Readiness with a catalogued 600 MW of candidate capacity and a 3.8 yrs average interconnection-queue wait.
Power & interconnection
Connectivity
Site characteristics
Risk & environment
Location context
Incentive detail: Qualified data center sales tax exemption (2019 law); state income tax credits.
Site location
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in St. Louis County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| American Bottoms Solar Project | Brownfield | 345 kV | 2 MW | 3.8 yrs | 70.2 |
| TAP139481 | Substation-Adjacent | 345 kV | 600 MW | 3.8 yrs | 67.4 |
| OZ St. Louis | Greenfield | — | — | 1.4 yrs | 67.1 |
| UNKNOWN117735 | Substation-Adjacent | 345 kV | 600 MW | 2.8 yrs | 66.8 |
| OZ St. Louis | Greenfield | — | — | 1.4 yrs | 66.8 |
| OZ St. Louis | Greenfield | — | — | 1.4 yrs | 66.4 |
| OZ St. Louis | Greenfield | — | — | 1.4 yrs | 66.1 |
| UNKNOWN121705 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 65.7 |
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for CAHOKIA, St. Louis County. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.