Greenfield (UNKNOWN128331 - TOLL ROAD)
GreenfieldMonroe County, Michigan · MISO
At a glance
Greenfield (UNKNOWN128331 - TOLL ROAD) is a greenfield datacenter candidate site in Monroe County, Michigan, scoring 52.8/100 DC Readiness — 68th of 70 scored sites in the county. Its nearest substation is UNKNOWN128331. 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. GridCensus catalogs 100 MW of candidate capacity here.
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
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How does Greenfield (UNKNOWN128331 - TOLL ROAD) compare with other sites in Monroe County?
Greenfield (UNKNOWN128331 - TOLL ROAD) ranks 68th of 70 scored candidate sites in Monroe County. Its 52.8/100 is roughly in line with the county average of 56.8. 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 (61 vs 68). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (UNKNOWN128331 - TOLL ROAD) to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN128331, is the closest grid connection point on record and operates at 120 kV. For connectivity, the nearest internet exchange facility is Otava Metro Detroit at 25.5 miles. 14 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Comcast, 17.8 miles away.
What are the flood, water and hazard risks at Greenfield (UNKNOWN128331 - TOLL ROAD)?
At the county level, FEMA's National Risk Index rates Monroe 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 Monroe County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| DEADEND167207 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 66.9 |
| TAP137284 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 66.1 |
| TAP137286 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 65.9 |
| UNKNOWN128355 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 65.8 |
| MOROCCO | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 65.8 |
| DEADEND167212 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 65.4 |
| UNKNOWN128955 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 65.2 |
| EC Near J R Whiting | Greenfield | — | — | 2.2 yrs | 62.4 |
Greenfield (UNKNOWN128331 - TOLL ROAD): common questions
What is the DC Readiness score of Greenfield (UNKNOWN128331 - TOLL ROAD)?
Greenfield (UNKNOWN128331 - TOLL ROAD) scores 52.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 68th of 70 scored sites in Monroe County. The Monroe County average is 56.8 and the Michigan average is 55.2.
What is the nearest substation to Greenfield (UNKNOWN128331 - TOLL ROAD)?
The nearest mapped substation is UNKNOWN128331, at 120 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves Greenfield (UNKNOWN128331 - TOLL ROAD)?
DTE ELECTRIC COMPANY (investor owned) holds the retail service territory that contains the site; its holding company is DTE ENERGY.
What grid region is Greenfield (UNKNOWN128331 - TOLL ROAD) in?
Greenfield (UNKNOWN128331 - TOLL ROAD) is in the MISO region. Projects interconnecting there have averaged a 2.2-year wait from queue request to operation.
How far is Greenfield (UNKNOWN128331 - TOLL ROAD) from an internet exchange?
The nearest internet exchange facility is Otava Metro Detroit, about 25.5 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, “Greenfield (UNKNOWN128331 - TOLL ROAD), Monroe County, MI”, https://gridcensus.com/datacenter-sites/michigan/monroe-county/greenfield-unknown128331-toll-road-384e3307 (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 (UNKNOWN128331 - TOLL ROAD), Monroe 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.