Mason Run Phase 5
IndustrialMonroe County, Michigan · MISO
At a glance
Mason Run Phase 5 is an industrial datacenter candidate site in Monroe County, Michigan, scoring 53.7/100 DC Readiness — 40th of 70 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
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 Mason Run Phase 5 compare with other sites in Monroe County?
Mason Run Phase 5 ranks 40th of 70 scored candidate sites in Monroe County. Its 53.7/100 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 (59 vs 68). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Mason Run Phase 5 to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is Otava Metro Detroit at 28.7 miles. 14 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Datacenter 11815482844, 14.9 miles away.
What are the flood, water and hazard risks at Mason Run Phase 5?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). 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 |
Mason Run Phase 5: common questions
What is the DC Readiness score of Mason Run Phase 5?
Mason Run Phase 5 scores 53.7/100 on the GridCensus DC Readiness scale, rated fair. It ranks 40th of 70 scored sites in Monroe County. The Monroe County average is 56.8 and the Michigan average is 55.2.
Which electric utility serves Mason Run Phase 5?
DTE ELECTRIC COMPANY (investor owned) holds the retail service territory that contains the site; its holding company is DTE ENERGY.
What grid region is Mason Run Phase 5 in?
Mason Run Phase 5 is in the MISO region. Projects interconnecting there have averaged a 2.2-year wait from queue request to operation.
Is Mason Run Phase 5 in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is Mason Run Phase 5 from an internet exchange?
The nearest internet exchange facility is Otava Metro Detroit, about 28.7 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, “Mason Run Phase 5, Monroe County, MI”, https://gridcensus.com/datacenter-sites/michigan/monroe-county/mason-run-phase-5-1e492304 (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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