CORSON
SubstationSouth Dakota · NORTHERN STATES POWER CO - MINNESOTA
CORSON is an electric transmission substation in South Dakota, operated by NORTHERN STATES POWER CO - MINNESOTA. It is classified as sub-transmission (115 kv) and connects 2 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 |
|---|---|---|---|---|
| #12963 | 115 kV | — | IN SERVICE | 2.3 mi |
| #13514 | 115 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 1.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CORSON, 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 |
|---|---|---|---|---|---|---|---|
| SIOUX FALLS | Substation-Adjacent | SD | Minnehaha County | 230 kV | 300 MW | 1.0 yrs | 76.3 |
| UNKNOWN130479 | Substation-Adjacent | IA | Lyon County | 230 kV | 300 MW | 1.0 yrs | 75.0 |
| VIRGIL FODNESS | Substation-Adjacent | SD | Lincoln County | 230 kV | 300 MW | 1.0 yrs | 74.3 |
| UNKNOWN158869 | Substation-Adjacent | SD | Minnehaha County | 115 kV | 100 MW | 1.0 yrs | 73.1 |
| UNKNOWN130480 | Substation-Adjacent | IA | Lyon County | 230 kV | 300 MW | 1.0 yrs | 72.9 |
| UNKNOWN131291 | Substation-Adjacent | SD | Lincoln County | 115 kV | 100 MW | 1.0 yrs | 72.8 |
| UNKNOWN130478 | Substation-Adjacent | IA | Lyon County | 115 kV | 100 MW | 1.0 yrs | 72.4 |
| UNKNOWN131288 | Substation-Adjacent | SD | Minnehaha County | 115 kV | 100 MW | 1.0 yrs | 71.8 |
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 CORSON 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.