MYSTERY HILLS
SubstationWisconsin · AMERICAN TRANSMISSION CO
MYSTERY HILLS is an electric transmission substation in Wisconsin, operated by AMERICAN TRANSMISSION 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 |
|---|---|---|---|---|
| #5616 | 138 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 7.0 mi |
| #45960 | 138 kV | — | IN SERVICE | 3.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MYSTERY HILLS, 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 |
|---|---|---|---|---|---|---|---|
| FOX RIVER STATION | Substation-Adjacent | WI | Brown County | 345 kV | 600 MW | 1.4 yrs | 75.3 |
| BAYPORT SW STA | Substation-Adjacent | WI | Brown County | 138 kV | 100 MW | 1.4 yrs | 75.0 |
| FOREST JUNCTION | Substation-Adjacent | WI | Calumet County | 345 kV | 600 MW | 1.4 yrs | 74.7 |
| NORTH APPLETON | Substation-Adjacent | WI | Outagamie County | 345 kV | 600 MW | 1.4 yrs | 74.4 |
| RED MAPLE | Substation-Adjacent | WI | Brown County | 138 kV | 100 MW | 1.4 yrs | 73.2 |
| ROCKLAND (WPS) | Substation-Adjacent | WI | Brown County | 138 kV | 100 MW | 1.4 yrs | 72.9 |
| GLORY RD | Substation-Adjacent | WI | Brown County | 138 kV | 100 MW | 1.4 yrs | 72.4 |
| COMBINED LOCKS | Substation-Adjacent | WI | Outagamie County | 138 kV | 100 MW | 1.4 yrs | 71.5 |
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 MYSTERY HILLS 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.