EC Near Joliet 9
GreenfieldWill, Illinois · PJM
At a glance
EC Near Joliet 9 is a greenfield datacenter candidate site in Will, Illinois, scoring 54.1/100 DC Readiness — 54th of 82 scored sites in the county. It sits in the PJM grid region and the COMMONWEALTH EDISON CO service territory, where interconnection has averaged 4.8 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
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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How does EC Near Joliet 9 compare with other sites in Will?
EC Near Joliet 9 ranks 54th of 82 scored candidate sites in Will. Its 54.1/100 is roughly in line with the county average of 57.0. It is roughly in line with the Illinois average of 54.3 and roughly in line with the national average of 53.2.
Against the Illinois average, its strongest sub-score is water (88 vs 87) and its weakest is natural hazard (55 vs 63). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is EC Near Joliet 9 to power, fiber and other datacenters?
The nearest located transmission bottleneck is 12 DRESDEN 45TR81 CT H 345 KV (PJM), 5 miles away. For connectivity, the nearest internet exchange facility is DataBridge Sites Aurora at 23.7 miles. 13 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Datacenter (386), 22.4 miles away.
What are the flood, water and hazard risks at EC Near Joliet 9?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 0.60 on a 0–5 scale. No mapped wetlands are recorded on the parcel. A Superfund site is nearby (AUX SABLE 8 EAST PIPELINE). At the county level, FEMA's National Risk Index rates Will "Relatively High".
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 Will, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| JOLIET | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 67.4 |
| TAP138173 | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 65.4 |
| WILTON | Substation-Adjacent | 765 kV | 1,000 MW | 4.8 yrs | 65.4 |
| UNKNOWN124429 | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 65.2 |
| EAST FRANKFORT | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 64.7 |
| LOCKPORT | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 64.7 |
| GOODINGS GROVE | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 64.6 |
| TAP138156 | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 64.4 |
EC Near Joliet 9: common questions
What is the DC Readiness score of EC Near Joliet 9?
EC Near Joliet 9 scores 54.1/100 on the GridCensus DC Readiness scale, rated fair. It ranks 54th of 82 scored sites in Will. The Will average is 57.0 and the Illinois average is 54.3.
Which electric utility serves EC Near Joliet 9?
COMMONWEALTH EDISON CO (investor owned) holds the retail service territory that contains the site; its holding company is EXELON CORP.
What grid region is EC Near Joliet 9 in?
EC Near Joliet 9 is in the PJM region. Projects interconnecting there have averaged a 4.8-year wait from queue request to operation.
Is EC Near Joliet 9 in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
Who owns EC Near Joliet 9?
Parcel records list the owner as COMMONWEALTH EDISON CO (private land).
How far is EC Near Joliet 9 from an internet exchange?
The nearest internet exchange facility is DataBridge Sites Aurora, about 23.7 miles away; 13 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “EC Near Joliet 9, Will, IL”, https://gridcensus.com/datacenter-sites/illinois/will/ec-near-joliet-9-61e53086 (data as of October 10, 2026).
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.
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