Greenfield (MARION S - JOPPA STATION)
GreenfieldJohnson County, Illinois · PJM
Greenfield (MARION S - JOPPA STATION) is a greenfield datacenter candidate site in Johnson County, Illinois, interconnecting through PJM. It screens at 59.3/100 DC Readiness with a catalogued 100 MW of candidate capacity and a 4.6 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Connectivity
Site characteristics
Risk & environment
Location context
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
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 Johnson County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| JOPPA | Substation-Adjacent | 230 kV | 300 MW | 4.6 yrs | 70.7 |
| Greenfield (SHAWNEE - WEST FRANKFORT EAST) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 67.3 |
| Greenfield (SHAWNEE - WEST FRANKFORT EAST) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 65.9 |
| Greenfield (SHAWNEE - WEST FRANKFORT EAST) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 65.9 |
| Greenfield (JOPPA - WEST FRANKFORT) | Greenfield | 230 kV | 300 MW | 4.6 yrs | 63.1 |
| MARION S | Substation-Adjacent | 161 kV | 100 MW | 4.6 yrs | 62.7 |
| OZ Johnson | Greenfield | — | — | 4.6 yrs | 62.4 |
| EC Coal Johnson County | Greenfield | — | — | 4.6 yrs | 61.2 |
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 Greenfield (MARION S - JOPPA STATION), Johnson 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.