UNKNOWN122139
Substation-AdjacentMadison County, Illinois · PJM
UNKNOWN122139 is a substation-adjacent datacenter candidate site in Madison County, Illinois, interconnecting through PJM. It screens at 63.6/100 DC Readiness with a catalogued 100 MW of candidate capacity and a 3.8 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
New-DC state tax exemptions suspended for 2 years (from Jul 2026).
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
Site location
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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 Madison County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| STALLINGS | Substation-Adjacent | 345 kV | 600 MW | 3.8 yrs | 66.7 |
| ROXFORD | Substation-Adjacent | 345 kV | 600 MW | 3.8 yrs | 65.6 |
| EC Near Venice | Greenfield | — | — | 4.6 yrs | 62.9 |
| EC Near Venice | Greenfield | — | — | 4.6 yrs | 62.7 |
| EC Near Venice | Greenfield | — | — | 4.6 yrs | 62.6 |
| EC Near Stallings | Greenfield | — | — | 4.6 yrs | 62.6 |
| EC Near Wood River | Greenfield | — | — | 4.6 yrs | 62.2 |
| EC Coal Madison County | Greenfield | — | — | 4.6 yrs | 62.1 |
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 UNKNOWN122139, Madison County. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.