STONE LAKE
SubstationMinnesota · AMERICAN TRANSMISSION CO
STONE LAKE is an electric transmission substation in Minnesota, operated by AMERICAN TRANSMISSION CO. It is classified as high-voltage (345 kv) and connects 7 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #39906 | 345 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 141.1 mi |
| #21879 | 345 kV | — | IN SERVICE | 79.0 mi |
| #58483 | 161 kV | NORTHERN STATES POWER CO - WISCONSIN | IN SERVICE | 1.1 mi |
| #17369 | 161 kV | NORTHERN STATES POWER CO - WISCONSIN | IN SERVICE | 4.8 mi |
| #42917 | 161 kV | NORTHERN STATES POWER CO - WISCONSIN | IN SERVICE | 24.8 mi |
| #17775 | 161 kV | NORTHERN STATES POWER CO - WISCONSIN | IN SERVICE | 20.4 mi |
| #57911 | 115 kV | NORTHERN STATES POWER CO - WISCONSIN | IN SERVICE | 26.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of STONE 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 |
|---|---|---|---|---|---|---|---|
| STONE LAKE | Substation-Adjacent | WI | Sawyer County | 345 kV | 600 MW | 1.4 yrs | 72.2 |
| UNKNOWN139715 | Substation-Adjacent | WI | Washburn County | 161 kV | 100 MW | 1.4 yrs | 68.9 |
| Greenfield (STONE LAKE - GARDNER PARK) | Greenfield | WI | Rusk County | 345 kV | 600 MW | 1.4 yrs | 68.1 |
| TAP139665 | Substation-Adjacent | WI | Rusk County | 115 kV | 100 MW | 1.4 yrs | 67.2 |
| Greenfield (STONE LAKE - GARDNER PARK) | Greenfield | WI | Washburn County | 345 kV | 600 MW | 1.4 yrs | 67.1 |
| Greenfield (STONE LAKE - GARDNER PARK) | Greenfield | WI | Sawyer County | 345 kV | 600 MW | 1.4 yrs | 66.8 |
| Greenfield (STONE LAKE - GARDNER PARK) | Greenfield | WI | Sawyer County | 345 kV | 600 MW | 1.4 yrs | 66.2 |
| UNKNOWN139699 | Substation-Adjacent | WI | Washburn County | 161 kV | 100 MW | 1.4 yrs | 66.1 |
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.
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This page shows a public slice of the GridCensus dataset for STONE LAKE substation, Minnesota. 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.