AINSWORTH
SubstationSouth Dakota · KBR RURAL PUBLIC POWER DISTRICT
AINSWORTH is an electric transmission substation in South Dakota, operated by KBR RURAL PUBLIC POWER DISTRICT. 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
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 |
|---|---|---|---|---|
| #12645 | 115 kV | NEBRASKA PUBLIC POWER DISTRICT | IN SERVICE | 7.2 mi |
| #12646 | 115 kV | NEBRASKA PUBLIC POWER DISTRICT | IN SERVICE | 43.8 mi |
| #31301 | 115 kV | KBR RURAL PUBLIC POWER DISTRICT | IN SERVICE | 38.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of AINSWORTH, 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 |
|---|---|---|---|---|---|---|---|
| AINSWORTH | Substation-Adjacent | NE | Brown County | 115 kV | 100 MW | 1.0 yrs | 64.7 |
| UNKNOWN132463 | Substation-Adjacent | NE | Brown County | 115 kV | 100 MW | 3.5 yrs | 62.9 |
| AINSWORTH WIND | Substation-Adjacent | NE | Brown County | 115 kV | 100 MW | 3.5 yrs | 62.1 |
| Greenfield (AINSWORTH - TAP144238) | Greenfield | NE | Brown County | 115 kV | 100 MW | 1.0 yrs | 60.0 |
| AINSWORTH WIND | Substation-Adjacent | NE | Brown County | 115 kV | 100 MW | 1.0 yrs | 59.7 |
| Greenfield (UNKNOWN131827 - AINSWORTH) | Greenfield | NE | Brown County | 115 kV | 100 MW | 1.0 yrs | 59.5 |
| Greenfield (UNKNOWN131827 - AINSWORTH) | Greenfield | NE | Brown County | 115 kV | 100 MW | 1.0 yrs | 59.5 |
| Greenfield (UNKNOWN131827 - AINSWORTH) | Greenfield | NE | Brown County | 115 kV | 100 MW | 1.0 yrs | 59.3 |
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 AINSWORTH 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.