BISON
SubstationSouth Dakota · WAPA-- WESTERN AREA POWER ADMINISTRATION
BISON is an electric transmission substation in South Dakota, operated by WAPA-- WESTERN AREA POWER ADMINISTRATION. 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 |
|---|---|---|---|---|
| #53586 | 230 kV | — | IN SERVICE | 0.1 mi |
| #61829 | 230 kV | — | IN SERVICE | 0.2 mi |
| #69277 | 230 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 38.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BISON, 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 |
|---|---|---|---|---|---|---|---|
| BISON | Substation-Adjacent | SD | Perkins County | 230 kV | 300 MW | 1.0 yrs | 68.3 |
| Greenfield (BISON - HETTINGER) | Greenfield | ND | Adams County | 230 kV | 300 MW | 1.4 yrs | 65.0 |
| Greenfield (BISON - HETTINGER) | Greenfield | ND | Adams County | 230 kV | 300 MW | 1.4 yrs | 64.9 |
| Greenfield (BISON - HETTINGER) | Greenfield | SD | Perkins County | 230 kV | 300 MW | 1.4 yrs | 63.8 |
| Greenfield (BISON - HETTINGER) | Greenfield | SD | Perkins County | 230 kV | 300 MW | 1.4 yrs | 63.7 |
| Greenfield (BISON - MAURINE) | Greenfield | SD | Perkins County | 230 kV | 300 MW | 1.0 yrs | 63.3 |
| Greenfield (BISON - MAURINE) | Greenfield | SD | Perkins County | 230 kV | 300 MW | 1.0 yrs | 60.8 |
| Greenfield (BISON - MAURINE) | Greenfield | SD | Perkins County | 230 kV | 300 MW | 1.0 yrs | 60.5 |
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 BISON substation, South 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.