Substation-Adjacent site at 39.777, -89.654
Substation-AdjacentSangamon County, Illinois · MISO
At a glance
Substation-Adjacent site at 39.777, -89.654 is a substation-adjacent datacenter candidate site in Sangamon County, Illinois, scoring 53.3/100 DC Readiness — 28th of 72 scored sites in the county. Its nearest substation is UNKNOWN122101 (0 mi, 69 kV). It sits in the MISO grid region and the CITY OF SPRINGFIELD - (IL) service territory, where interconnection has averaged 4.8 years from request to operation. GridCensus catalogs 50 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
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 Substation-Adjacent site at 39.777, -89.654 compare with other sites in Sangamon County?
Substation-Adjacent site at 39.777, -89.654 ranks 28th of 72 scored candidate sites in Sangamon County. Its 53.3/100 is roughly in line with the county average of 53.1. 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 power availability (46 vs 37) and its weakest is fiber connectivity (67 vs 71). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Substation-Adjacent site at 39.777, -89.654 to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN122101, is about 0 miles away and operates at 69 kV. For connectivity, the nearest internet exchange facility is SFN IL-Peoria at 66.5 miles. 14 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is SFN IL-Peoria, 66.5 miles away.
What are the flood, water and hazard risks at Substation-Adjacent site at 39.777, -89.654?
At the county level, FEMA's National Risk Index rates Sangamon 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 Sangamon County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| LANESVILLE | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 62.3 |
| AUSTIN | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 62.3 |
| PAWNEE | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 62.2 |
| TAP139415 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 59.0 |
| EC Coal Sangamon County | Greenfield | — | — | 4.8 yrs | 58.5 |
| EC Near Dallman | Greenfield | — | — | 4.8 yrs | 58.0 |
| EC Coal Sangamon County | Greenfield | — | — | 4.8 yrs | 57.7 |
| UNKNOWN122577 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 56.5 |
Substation-Adjacent site at 39.777, -89.654: common questions
What is the DC Readiness score of Substation-Adjacent site at 39.777, -89.654?
Substation-Adjacent site at 39.777, -89.654 scores 53.3/100 on the GridCensus DC Readiness scale, rated fair. It ranks 28th of 72 scored sites in Sangamon County. The Sangamon County average is 53.1 and the Illinois average is 54.3.
What is the nearest substation to Substation-Adjacent site at 39.777, -89.654?
The nearest mapped substation is UNKNOWN122101, about 0 miles away, at 69 kV. GridCensus catalogs 50 MW of candidate capacity for the site.
Which electric utility serves Substation-Adjacent site at 39.777, -89.654?
CITY OF SPRINGFIELD - (IL) (municipal) holds the retail service territory that contains the site.
What grid region is Substation-Adjacent site at 39.777, -89.654 in?
Substation-Adjacent site at 39.777, -89.654 is in the MISO region. Projects interconnecting there have averaged a 4.8-year wait from queue request to operation.
How far is Substation-Adjacent site at 39.777, -89.654 from an internet exchange?
The nearest internet exchange facility is SFN IL-Peoria, about 66.5 miles away; 14 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, “Substation-Adjacent site at 39.777, -89.654, Sangamon County, IL”, https://gridcensus.com/datacenter-sites/illinois/sangamon-county/unknown122101-56fe0bbc (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 Substation-Adjacent site at 39.777, -89.654, Sangamon 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.