POST ROCK
SubstationNebraska · MIDWEST ENERGY INC
POST ROCK is an electric transmission substation in Nebraska, operated by MIDWEST ENERGY INC. It is classified as high-voltage (345 kv) and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #36708 | 345 kV | MIDWEST ENERGY INC | IN SERVICE | 137.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of POST ROCK, 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 |
|---|---|---|---|---|---|---|---|
| POST ROCK | Substation-Adjacent | NE | Kearney County | 345 kV | 600 MW | 3.5 yrs | 73.0 |
| AXTELL | Substation-Adjacent | NE | Franklin County | 345 kV | 600 MW | 3.5 yrs | 68.6 |
| TAP148615 | Substation-Adjacent | NE | Buffalo County | 115 kV | 100 MW | 3.5 yrs | 67.0 |
| UNKNOWN131960 | Substation-Adjacent | NE | Phelps County | 115 kV | 100 MW | 3.5 yrs | 66.9 |
| UNKNOWN131762 | Substation-Adjacent | NE | Buffalo County | 115 kV | 100 MW | 3.5 yrs | 66.6 |
| Greenfield (SWEETWATER - AXTELL) | Greenfield | NE | Phelps County | 345 kV | 600 MW | 3.5 yrs | 66.5 |
| Greenfield (SWEETWATER - AXTELL) | Greenfield | NE | Buffalo County | 345 kV | 600 MW | 3.5 yrs | 66.2 |
| Greenfield (AXTELL - PAULINE) | Greenfield | NE | Kearney County | 345 kV | 600 MW | 3.5 yrs | 66.0 |
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 POST ROCK substation, Nebraska. 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.