ROSEAU COUNTY
SubstationMinnesota · OTTER TAIL POWER CO
ROSEAU COUNTY is an electric transmission substation in Minnesota, operated by OTTER TAIL POWER CO. It is classified as extra-high-voltage (500 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 |
|---|---|---|---|---|
| #25064 | 500 kV | — | IN SERVICE | 193.1 mi |
| #26538 | 500 kV | OTTER TAIL POWER CO | — | 109.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ROSEAU COUNTY, 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 |
|---|---|---|---|---|---|---|---|
| ROSEAU COUNTY | Substation-Adjacent | MN | Roseau County | 500 kV | 1,000 MW | 1.4 yrs | 74.8 |
| UNKNOWN129817 | Substation-Adjacent | MN | Roseau County | 230 kV | 300 MW | 1.4 yrs | 70.8 |
| Greenfield (ROSEAU COUNTY - FORBES) | Greenfield | MN | Lake of the Woods County | 500 kV | 1,000 MW | 1.4 yrs | 69.1 |
| Greenfield (ROSEAU COUNTY - None) | Greenfield | MN | Roseau County | 500 kV | 1,000 MW | 1.4 yrs | 67.7 |
| Greenfield (ROSEAU COUNTY - None) | Greenfield | MN | Roseau County | 500 kV | 1,000 MW | 1.4 yrs | 66.9 |
| Greenfield (ROSEAU COUNTY - None) | Greenfield | MN | Roseau County | 500 kV | 1,000 MW | 1.4 yrs | 66.5 |
| TAP134506 | Substation-Adjacent | MN | Roseau County | 230 kV | 300 MW | 1.4 yrs | 66.4 |
| Greenfield (ROSEAU COUNTY - FORBES) | Greenfield | MN | Roseau County | 500 kV | 1,000 MW | 1.4 yrs | 66.3 |
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 ROSEAU COUNTY 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.