GRIMES
SubstationNebraska · MIDAMERICAN ENERGY CO
GRIMES is an electric transmission substation in Nebraska, operated by MIDAMERICAN ENERGY CO. 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 |
|---|---|---|---|---|
| #26718 | 345 kV | MIDAMERICAN ENERGY CO | IN SERVICE | 121.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of GRIMES, 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 |
|---|---|---|---|---|---|---|---|
| GRIMES | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 79.4 |
| UNKNOWN163571 | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 78.1 |
| WALTER SCOTT ENERGY CENTER | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 77.9 |
| UNKNOWN131416 | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 76.7 |
| SARPY COUNTY | Substation-Adjacent | NE | Sarpy County | 345 kV | 600 MW | 3.5 yrs | 76.0 |
| OPPD BLONDO STREET | Substation-Adjacent | NE | Douglas County | 345 kV | 600 MW | 3.5 yrs | 75.2 |
| FORT CALHOUN | Substation-Adjacent | NE | Washington County | 345 kV | 600 MW | 3.5 yrs | 73.4 |
| UNKNOWN131499 | Substation-Adjacent | IA | Mills County | 161 kV | 100 MW | 3.5 yrs | 73.2 |
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 GRIMES 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.