ELLENDALE 345 KV
SubstationNorth Dakota · OTTER TAIL COMPANY
ELLENDALE 345 KV is an electric transmission substation in North Dakota, operated by OTTER TAIL COMPANY. It is classified as high-voltage (345 kv) and connects 3 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 |
|---|---|---|---|---|
| #65903 | 345 kV | OTTER TAIL COMPANY | IN SERVICE | 131.5 mi |
| #65908 | 230 kV | — | — | 0.1 mi |
| #65909 | 230 kV | — | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ELLENDALE 345 KV, 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 |
|---|---|---|---|---|---|---|---|
| GROTON | Substation-Adjacent | ND | Dickey County | 345 kV | 600 MW | 1.4 yrs | 75.4 |
| ELLENDALE 345 KV | Substation-Adjacent | SD | Brown County | 345 kV | 600 MW | 1.4 yrs | 75.0 |
| OAKES | Substation-Adjacent | ND | Sargent County | 230 kV | 300 MW | 1.4 yrs | 71.6 |
| Greenfield (UNKNOWN175849 - ELLENDALE 345 ) | Greenfield | SD | Brown County | 345 kV | 600 MW | 1.4 yrs | 70.0 |
| Greenfield (ELLENDALE - OAKES) | Greenfield | ND | Dickey County | 230 kV | 300 MW | 1.4 yrs | 69.8 |
| FORMAN 230 KV | Substation-Adjacent | ND | Sargent County | 230 kV | 300 MW | 1.4 yrs | 69.3 |
| Greenfield (UNKNOWN175849 - ELLENDALE 345 ) | Greenfield | SD | Brown County | 345 kV | 600 MW | 1.4 yrs | 69.3 |
| Greenfield (GROTON - LELAND OLDS) | Greenfield | SD | Brown County | 345 kV | 600 MW | 1.4 yrs | 69.1 |
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.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for ELLENDALE 345 KV 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.