GRAND FORKS
SubstationNorth Dakota · OTTER TAIL POWER CO
GRAND FORKS is an electric transmission substation in North Dakota, operated by OTTER TAIL POWER CO. It is classified as high-voltage (345 kv) and connects 8 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 |
|---|---|---|---|---|
| #9910 | 345 kV | — | IN SERVICE | 249.2 mi |
| #30467 | 230 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | IN SERVICE | 58.5 mi |
| #31587 | 230 kV | — | IN SERVICE | 0.3 mi |
| #34547 | 230 kV | OTTER TAIL POWER CO | IN SERVICE | 50.7 mi |
| #35673 | 230 kV | — | IN SERVICE | 0.1 mi |
| #36056 | 230 kV | — | IN SERVICE | 0.3 mi |
| #9909 | 230 kV | — | IN SERVICE | 0.2 mi |
| #42477 | 230 kV | — | IN SERVICE | 80.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of GRAND FORKS, 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 |
|---|---|---|---|---|---|---|---|
| Greenfield (GRAND FORKS - CENTER 345KV SWI) | Greenfield | ND | Griggs County | 345 kV | 600 MW | 1.4 yrs | 71.3 |
| Greenfield (GRAND FORKS - CENTER 345KV SWI) | Greenfield | ND | Grand Forks County | 345 kV | 600 MW | 1.4 yrs | 69.6 |
| Greenfield (GRAND FORKS - CENTER 345KV SWI) | Greenfield | ND | Steele County | 345 kV | 600 MW | 1.4 yrs | 69.5 |
| Greenfield (GRAND FORKS - CENTER 345KV SWI) | Greenfield | ND | Grand Forks County | 345 kV | 600 MW | 1.4 yrs | 69.5 |
| Greenfield (UNKNOWN133738 - TAP134573) | Greenfield | ND | Steele County | 230 kV | 300 MW | 1.4 yrs | 69.5 |
| Greenfield (GRAND FORKS - CENTER 345KV SWI) | Greenfield | ND | Griggs County | 345 kV | 600 MW | 1.4 yrs | 69.3 |
| GRAND FORKS | Substation-Adjacent | ND | Nelson County | 345 kV | 600 MW | 1.4 yrs | 69.2 |
| Greenfield (UNKNOWN133386 - GRAND FORKS) | Greenfield | ND | Grand Forks County | 230 kV | 300 MW | 1.4 yrs | 68.8 |
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 GRAND FORKS substation, North Dakota. 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.