Greenfield (NORTH DECATUR - LATHAM)
GreenfieldMacon County, Illinois · MISO
At a glance
Greenfield (NORTH DECATUR - LATHAM) is a greenfield datacenter candidate site in Macon County, Illinois, scoring 49.0/100 DC Readiness — 60th of 71 scored sites in the county. Its nearest substation is NORTH DECATUR. It sits in the MISO grid region and the MENARD ELECTRIC COOP service territory, where interconnection has averaged 4.8 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
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 Greenfield (NORTH DECATUR - LATHAM) compare with other sites in Macon County?
Greenfield (NORTH DECATUR - LATHAM) ranks 60th of 71 scored candidate sites in Macon County. Its 49.0/100 is roughly in line with the county average of 51.8. 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 (57 vs 71). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (NORTH DECATUR - LATHAM) to power, fiber and other datacenters?
The nearest mapped substation, NORTH DECATUR, is the closest grid connection point on record and operates at 138 kV. For connectivity, the nearest internet exchange facility is SFN IL-Peoria at 60.9 miles. 6 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is NCSA Petascale Computing Facility, 46.2 miles away.
What are the flood, water and hazard risks at Greenfield (NORTH DECATUR - LATHAM)?
At the county level, FEMA's National Risk Index rates Macon 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 Macon County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| OREANA | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 61.2 |
| FARADAY | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 61.0 |
| EC Near Fuyao Glass Illinois Inc. | Greenfield | — | — | 4.8 yrs | 58.3 |
| EC FFE Macon County | Greenfield | — | — | 4.8 yrs | 57.9 |
| EC Near Fuyao Glass Illinois Inc. | Greenfield | — | — | 4.8 yrs | 57.6 |
| EC Near Fuyao Glass Illinois Inc. | Greenfield | — | — | 4.8 yrs | 56.1 |
| EC Near Fuyao Glass Illinois Inc. | Greenfield | — | — | 4.8 yrs | 55.7 |
| UNKNOWN162221 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 55.6 |
Greenfield (NORTH DECATUR - LATHAM): common questions
What is the DC Readiness score of Greenfield (NORTH DECATUR - LATHAM)?
Greenfield (NORTH DECATUR - LATHAM) scores 49.0/100 on the GridCensus DC Readiness scale, rated fair. It ranks 60th of 71 scored sites in Macon County. The Macon County average is 51.8 and the Illinois average is 54.3.
What is the nearest substation to Greenfield (NORTH DECATUR - LATHAM)?
The nearest mapped substation is NORTH DECATUR, at 138 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves Greenfield (NORTH DECATUR - LATHAM)?
MENARD ELECTRIC COOP (cooperative) holds the retail service territory that contains the site.
What grid region is Greenfield (NORTH DECATUR - LATHAM) in?
Greenfield (NORTH DECATUR - LATHAM) is in the MISO region. Projects interconnecting there have averaged a 4.8-year wait from queue request to operation.
How far is Greenfield (NORTH DECATUR - LATHAM) from an internet exchange?
The nearest internet exchange facility is SFN IL-Peoria, about 60.9 miles away; 6 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, “Greenfield (NORTH DECATUR - LATHAM), Macon County, IL”, https://gridcensus.com/datacenter-sites/illinois/macon-county/greenfield-north-decatur-latham-6484cd76 (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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Every site and score for Greenfield (NORTH DECATUR - LATHAM), Macon County is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.