WILLMAR
SubstationMinnesota · NORTHERN STATES POWER CO - MINNESOTA
WILLMAR is an electric transmission substation in Minnesota, operated by NORTHERN STATES POWER CO - MINNESOTA. It is classified as high-voltage (230 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
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 |
|---|---|---|---|---|
| #48568 | 230 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | IN SERVICE | 30.9 mi |
| #31654 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | IN SERVICE | 14.2 mi |
| #44314 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 29.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of WILLMAR, 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 |
|---|---|---|---|---|---|---|---|
| TAP138582 | Substation-Adjacent | MN | Chippewa County | 230 kV | 300 MW | 1.4 yrs | 68.8 |
| Greenfield (COAL CREEK - DICKINSON) | Greenfield | MN | Stearns County | 400 kV | 600 MW | 1.4 yrs | 68.0 |
| Greenfield (COAL CREEK - DICKINSON) | Greenfield | MN | Meeker County | 400 kV | 600 MW | 1.4 yrs | 67.8 |
| Greenfield (COAL CREEK - DICKINSON) | Greenfield | MN | Meeker County | 400 kV | 600 MW | 1.4 yrs | 66.2 |
| PANTHER | Substation-Adjacent | MN | Renville County | 230 kV | 300 MW | 1.4 yrs | 65.6 |
| Greenfield (TAP138582 - PANTHER) | Greenfield | MN | Renville County | 230 kV | 300 MW | 1.4 yrs | 64.8 |
| Greenfield (TAP138582 - PANTHER) | Greenfield | MN | Renville County | 230 kV | 300 MW | 1.4 yrs | 64.7 |
| Greenfield (COAL CREEK - DICKINSON) | Greenfield | MN | Stearns County | 400 kV | 600 MW | 1.4 yrs | 64.7 |
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 WILLMAR 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.