WAYSIDE
SubstationSouth Dakota · NEBRASKA PUBLIC POWER DISTRICT
WAYSIDE is an electric transmission substation in South Dakota, operated by NEBRASKA PUBLIC POWER DISTRICT. 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 |
|---|---|---|---|---|
| #69273 | 230 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 93.1 mi |
| #69274 | 230 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 80.2 mi |
| #49708 | 115 kV | NEBRASKA PUBLIC POWER DISTRICT | IN SERVICE | 16.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of WAYSIDE, 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 |
|---|---|---|---|---|---|---|---|
| WAYSIDE | Substation-Adjacent | NE | Dawes County | 230 kV | 300 MW | 1.0 yrs | 65.1 |
| Greenfield (WAYSIDE - NEW UNDERWOOD) | Greenfield | SD | Fall River County | 230 kV | 300 MW | 1.0 yrs | 65.1 |
| Greenfield (UNKNOWN202528 - STEGALL) | Greenfield | SD | Fall River County | 230 kV | 300 MW | 1.0 yrs | 64.9 |
| Greenfield (UNKNOWN202528 - STEGALL) | Greenfield | SD | Fall River County | 230 kV | 300 MW | 1.0 yrs | 64.0 |
| UNKNOWN132446 | Substation-Adjacent | NE | Dawes County | 115 kV | 100 MW | 1.0 yrs | 62.5 |
| Greenfield (WAYSIDE - NEW UNDERWOOD) | Greenfield | SD | Fall River County | 230 kV | 300 MW | 1.0 yrs | 62.4 |
| UNKNOWN132448 | Substation-Adjacent | NE | Dawes County | 115 kV | 100 MW | 1.0 yrs | 62.3 |
| Greenfield (WAYSIDE - NEW UNDERWOOD) | Greenfield | SD | Fall River County | 230 kV | 300 MW | 1.0 yrs | 62.0 |
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 WAYSIDE 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.