MUNISING
SubstationWisconsin · UPPER PENINSULA POWER CO
MUNISING is an electric transmission substation in Wisconsin, operated by UPPER PENINSULA POWER CO. 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 |
|---|---|---|---|---|
| #48295 | 138 kV | — | — | 0.1 mi |
| #53115 | 138 kV | UPPER PENINSULA POWER CO | IN SERVICE | 45.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MUNISING, 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 |
|---|---|---|---|---|---|---|---|
| MUNISING | Substation-Adjacent | MI | Alger County | 138 kV | 100 MW | 1.4 yrs | 61.0 |
| Greenfield (MUNISING - FORSYTH) | Greenfield | MI | Alger County | 138 kV | 100 MW | 1.4 yrs | 58.3 |
| Greenfield (MUNISING - FORSYTH) | Greenfield | MI | Alger County | 138 kV | 100 MW | 1.4 yrs | 57.6 |
| Greenfield (MUNISING - FORSYTH) | Greenfield | MI | Alger County | 138 kV | 100 MW | 1.4 yrs | 53.4 |
| Cox Building | Industrial | MI | Alger County | — | — | — | 42.7 |
| Dairy Queen and Chasing Fireflies | Industrial | MI | Alger County | — | — | — | 42.7 |
| Peoples State Bank Project | Industrial | MI | Alger County | — | — | — | 42.7 |
| Fineman Building | Industrial | MI | Alger County | — | — | — | 42.7 |
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 MUNISING substation, Wisconsin. 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.