EC Near Highland
GreenfieldMadison County, Illinois · MISO
At a glance
EC Near Highland is a greenfield datacenter candidate site in Madison County, Illinois, scoring 57.0/100 DC Readiness — 41st of 112 scored sites in the county. It sits in the MISO grid region and the SOUTHWESTERN ELECTRIC COOP INC - (IL) 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 Highland compare with other sites in Madison County?
EC Near Highland ranks 41st of 112 scored candidate sites in Madison County. Its 57.0/100 is roughly in line with the county average of 55.9. 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 natural hazard (65 vs 63) and its weakest is fiber connectivity (60 vs 71). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is EC Near Highland to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is H5 Data Centers St. Louis (MO01) at 30.8 miles. 13 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Datacenter 01133944585, 14.3 miles away.
What are the flood, water and hazard risks at EC Near Highland?
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. At the county level, FEMA's National Risk Index rates Madison County "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 Madison County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| STALLINGS | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 66.5 |
| ROXFORD | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 65.1 |
| UNKNOWN122139 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 63.3 |
| EC Near Venice | Greenfield | — | — | 4.8 yrs | 62.9 |
| EC Near Venice | Greenfield | — | — | 4.8 yrs | 62.7 |
| EC Near Venice | Greenfield | — | — | 4.8 yrs | 62.6 |
| EC Near Stallings | Greenfield | — | — | 4.8 yrs | 62.6 |
| EC Near Wood River | Greenfield | — | — | 4.8 yrs | 62.2 |
EC Near Highland: common questions
What is the DC Readiness score of EC Near Highland?
EC Near Highland scores 57.0/100 on the GridCensus DC Readiness scale, rated good. It ranks 41st of 112 scored sites in Madison County. The Madison County average is 55.9 and the Illinois average is 54.3.
Which electric utility serves EC Near Highland?
SOUTHWESTERN ELECTRIC COOP INC - (IL) (cooperative) holds the retail service territory that contains the site.
What grid region is EC Near Highland in?
EC Near Highland is in the MISO region. Projects interconnecting there have averaged a 4.8-year wait from queue request to operation.
Is EC Near Highland 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 Highland?
Parcel records list the owner as AMEREN ILLINOIS COMPANY (private land).
How far is EC Near Highland from an internet exchange?
The nearest internet exchange facility is H5 Data Centers St. Louis (MO01), about 30.8 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 Highland, Madison County, IL”, https://gridcensus.com/datacenter-sites/illinois/madison-county/ec-near-highland-a9ef5a49 (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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