MIO
SubstationMichigan · WOLVERINE POWER SUPPLY COOP
MIO is an electric transmission substation in Michigan, operated by WOLVERINE POWER SUPPLY COOP. It is classified as sub-transmission (138 kv) and connects 2 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #24598 | 138 kV | — | IN SERVICE | 0.1 mi |
| #42086 | 138 kV | WOLVERINE POWER SUPPLY COOP | — | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MIO, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| GALLAGHER | Substation-Adjacent | MI | Ogemaw County | 345 kV | 600 MW | 2.2 yrs | 70.6 |
| Greenfield (LIVINGSTON - GALLAGHER) | Greenfield | MI | Oscoda County | 345 kV | 600 MW | 2.2 yrs | 64.7 |
| WHITTEMORE | Substation-Adjacent | MI | Arenac County | 138 kV | 100 MW | 2.2 yrs | 64.4 |
| UNKNOWN145815 | Substation-Adjacent | MI | Ogemaw County | 138 kV | 100 MW | 2.2 yrs | 64.4 |
| Greenfield (LIVINGSTON - GALLAGHER) | Greenfield | MI | Ogemaw County | 345 kV | 600 MW | 2.2 yrs | 64.4 |
| Greenfield (LIVINGSTON - GALLAGHER) | Greenfield | MI | Otsego County | 345 kV | 600 MW | 2.2 yrs | 63.8 |
| Greenfield (LIVINGSTON - GALLAGHER) | Greenfield | MI | Ogemaw County | 345 kV | 600 MW | 2.2 yrs | 63.6 |
| UNKNOWN133922 | Substation-Adjacent | MI | Oscoda County | 138 kV | 100 MW | 2.2 yrs | 63.5 |
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for MIO substation, Michigan. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.