St. Clair County Intl Arprt at 42.911, -82.529
Federal ExcessSt. Clair County, Michigan · MISO
At a glance
St. Clair County Intl Arprt at 42.911, -82.529 is a federal excess datacenter candidate site in St. Clair County, Michigan, scoring 52.3/100 DC Readiness — 57th of 123 scored sites in the county. It sits in the MISO grid region and the DTE ELECTRIC COMPANY service territory, where interconnection has averaged 2.2 years from request to operation.
Power & interconnection
Speed to power
Shorter queues and healthier completion here — a faster path to energization than the national norm.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Personal property tax exemption for eligible DC equipment; MEGA tax credits.
Site location
Get alerts
Track ST. CLAIR COUNTY INTL ARPRT
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
How does St. Clair County Intl Arprt at 42.911, -82.529 compare with other sites in St. Clair County?
St. Clair County Intl Arprt at 42.911, -82.529 ranks 57th of 123 scored candidate sites in St. Clair County. Its 52.3/100 is roughly in line with the county average of 54.1. It is roughly in line with the Michigan average of 55.2 and roughly in line with the national average of 53.2.
Against the Michigan average, its strongest sub-score is natural hazard (75 vs 74) and its weakest is fiber connectivity (56 vs 68). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is St. Clair County Intl Arprt at 42.911, -82.529 to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is ManagedWay TYM2 at 38.6 miles. 12 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Chick-fil-A Hiring Center, 30.4 miles away.
What are the flood, water and hazard risks at St. Clair County Intl Arprt at 42.911, -82.529?
At the county level, FEMA's National Risk Index rates St. Clair County "Relatively Moderate".
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 St. Clair County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| ST. CLAIR | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 68.5 |
| UNKNOWN128518 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 64.8 |
| TAP139992 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 64.8 |
| FITZ | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 64.6 |
| GREENWOOD | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 64.0 |
| EC Coal St. Clair County | Greenfield | — | — | 2.2 yrs | 60.4 |
| OZ St. Clair | Greenfield | — | — | 2.2 yrs | 60.2 |
| EC Coal St. Clair County | Greenfield | — | — | 2.2 yrs | 59.7 |
St. Clair County Intl Arprt at 42.911, -82.529: common questions
What is the DC Readiness score of St. Clair County Intl Arprt at 42.911, -82.529?
St. Clair County Intl Arprt at 42.911, -82.529 scores 52.3/100 on the GridCensus DC Readiness scale, rated fair. It ranks 57th of 123 scored sites in St. Clair County. The St. Clair County average is 54.1 and the Michigan average is 55.2.
Which electric utility serves St. Clair County Intl Arprt at 42.911, -82.529?
DTE ELECTRIC COMPANY (investor owned) holds the retail service territory that contains the site; its holding company is DTE ENERGY.
What grid region is St. Clair County Intl Arprt at 42.911, -82.529 in?
St. Clair County Intl Arprt at 42.911, -82.529 is in the MISO region. Projects interconnecting there have averaged a 2.2-year wait from queue request to operation.
How far is St. Clair County Intl Arprt at 42.911, -82.529 from an internet exchange?
The nearest internet exchange facility is ManagedWay TYM2, about 38.6 miles away; 12 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, “St. Clair County Intl Arprt at 42.911, -82.529, St. Clair County, MI”, https://gridcensus.com/datacenter-sites/michigan/st-clair-county/st-clair-county-intl-arprt-aaa3c03a (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.
Go deeper than the public screen
Every site and score for St. Clair County Intl Arprt at 42.911, -82.529, St. Clair 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.