TAP138633
SubstationSouth Dakota · OTTER TAIL POWER CO
TAP138633 is an electric transmission substation in South Dakota, operated by OTTER TAIL POWER CO. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #25092 | 115 kV | — | IN SERVICE | 4.8 mi |
| #25119 | 115 kV | — | IN SERVICE | 1.7 mi |
| #43094 | 115 kV | OTTER TAIL POWER CO | IN SERVICE | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP138633, 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 |
|---|---|---|---|---|---|---|---|
| DEER CREEK STATION | Substation-Adjacent | MN | Lincoln County | 345 kV | 600 MW | 1.0 yrs | 75.9 |
| BROOKINGS COUNTY | Substation-Adjacent | MN | Lincoln County | 345 kV | 600 MW | 1.0 yrs | 73.1 |
| WHITE | Substation-Adjacent | SD | Brookings County | 345 kV | 600 MW | 1.0 yrs | 72.0 |
| UNKNOWN175847 | Substation-Adjacent | SD | Brookings County | 345 kV | 600 MW | 1.0 yrs | 71.4 |
| TAP138633 | Substation-Adjacent | SD | Brookings County | 115 kV | 100 MW | 1.0 yrs | 69.8 |
| UNKNOWN132494 | Substation-Adjacent | MN | Lincoln County | 115 kV | 100 MW | 1.4 yrs | 69.7 |
| UNKNOWN131214 | Substation-Adjacent | SD | Brookings County | 115 kV | 100 MW | 1.0 yrs | 69.6 |
| UNKNOWN131221 | Substation-Adjacent | SD | Brookings County | 115 kV | 100 MW | 1.0 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 TAP138633 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.