BLACK DOG
SubstationMinnesota · NORTHERN STATES POWER CO - MINNESOTA
BLACK DOG is an electric transmission substation in Minnesota, operated by NORTHERN STATES POWER CO - MINNESOTA. It is classified as sub-transmission (115 kv) and connects 13 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 |
|---|---|---|---|---|
| #896 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 1.7 mi |
| #34397 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 7.4 mi |
| #39190 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 4.7 mi |
| #39502 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 4.6 mi |
| #41942 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 4.6 mi |
| #42760 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 4.5 mi |
| #43602 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 7.5 mi |
| #49942 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 2.9 mi |
| #64208 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | — | 0.1 mi |
| #64209 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | — | 0.1 mi |
| #64210 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | — | 0.1 mi |
| #64211 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BLACK DOG, 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 |
|---|---|---|---|---|---|---|---|
| BLUE LAKE | Substation-Adjacent | MN | Carver County | 345 kV | 600 MW | 1.4 yrs | 79.9 |
| UNKNOWN129414 | Substation-Adjacent | MN | Anoka County | 345 kV | 600 MW | 1.4 yrs | 77.5 |
| UNKNOWN129614 | Substation-Adjacent | MN | Hennepin County | 345 kV | 600 MW | 1.4 yrs | 76.5 |
| UNKNOWN129654 | Substation-Adjacent | MN | Anoka County | 230 kV | 300 MW | 1.4 yrs | 76.1 |
| HAMPTON | Substation-Adjacent | MN | Dakota County | 345 kV | 600 MW | 1.4 yrs | 75.2 |
| BUNKER LAKE | Substation-Adjacent | MN | Anoka County | 345 kV | 600 MW | 1.4 yrs | 75.0 |
| MAXWELL | Substation-Adjacent | MN | Washington County | 345 kV | 600 MW | 1.4 yrs | 74.8 |
| WEST RIVER ROAD | Substation-Adjacent | MN | Ramsey County | 115 kV | 100 MW | 1.4 yrs | 73.7 |
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 BLACK DOG 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.