PERCH LAKE
SubstationWisconsin · AMERICAN TRANSMISSION CO
PERCH LAKE is an electric transmission substation in Wisconsin, operated by AMERICAN TRANSMISSION CO. It is classified as sub-transmission (138 kv) and connects 3 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 |
|---|---|---|---|---|
| #7205 | 138 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 36.7 mi |
| #25740 | 138 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 29.5 mi |
| #60660 | 138 kV | — | IN SERVICE | 47.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of PERCH LAKE, 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 |
|---|---|---|---|---|---|---|---|
| PERCH LAKE | Substation-Adjacent | MI | Baraga County | 138 kV | 100 MW | 1.4 yrs | 65.1 |
| NATIONAL | Substation-Adjacent | MI | Marquette County | 138 kV | 100 MW | 1.4 yrs | 63.2 |
| DEADEND172040 | Substation-Adjacent | MI | Marquette County | 138 kV | 100 MW | 1.4 yrs | 62.8 |
| TILDEN | Substation-Adjacent | MI | Marquette County | 138 kV | 100 MW | 1.4 yrs | 62.6 |
| Greenfield (NORTH LAKE - M-38) | Greenfield | MI | Baraga County | 138 kV | 100 MW | 1.4 yrs | 60.7 |
| EC FFE Baraga County | Greenfield | MI | Baraga County | — | — | 2.2 yrs | 60.3 |
| EMPIRE MINE | Substation-Adjacent | MI | Marquette County | 138 kV | 100 MW | 1.4 yrs | 60.2 |
| Greenfield (NATIONAL - EMPIRE MINE) | Greenfield | MI | Marquette County | 138 kV | 100 MW | 1.4 yrs | 60.0 |
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 PERCH LAKE 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.