EC Coal Williamson County
GreenfieldWilliamson County, Illinois · PJM
EC Coal Williamson County is a greenfield datacenter candidate site in Williamson County, Illinois, interconnecting through PJM. It screens at 59.8/100 DC Readiness and a 4.6 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Shorter queues and healthier completion here — a faster path to energization than the national norm.
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 Williamson County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC FFE Williamson County | Greenfield | — | — | 4.6 yrs | 59.8 |
| UNKNOWN121872 | Substation-Adjacent | 161 kV | 100 MW | 3.8 yrs | 59.6 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 59.4 |
| EC Near Marion | Greenfield | — | — | 4.6 yrs | 59.0 |
| OZ Williamson | Greenfield | — | — | 4.6 yrs | 59.0 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 58.9 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 58.3 |
| MARION S | Substation-Adjacent | 161 kV | 100 MW | 3.8 yrs | 58.1 |
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 EC Coal Williamson County, Williamson 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.