CRESTON
SubstationIowa · WAPA-- WESTERN AREA POWER ADMINISTRATION
CRESTON is an electric transmission substation in Iowa, operated by WAPA-- WESTERN AREA POWER ADMINISTRATION. It is classified as sub-transmission (138 kv) and connects 4 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 |
|---|---|---|---|---|
| #12298 | 161 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | IN SERVICE | 62.4 mi |
| #12299 | 161 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | IN SERVICE | 11.4 mi |
| #12301 | 161 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | IN SERVICE | 36.3 mi |
| #51639 | 161 kV | — | IN SERVICE | 21.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CRESTON, 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 |
|---|---|---|---|---|---|---|---|
| ROLLING HILLS | Substation-Adjacent | IA | Adams County | 345 kV | 600 MW | 1.4 yrs | 72.7 |
| UNKNOWN131419 | Substation-Adjacent | IA | Madison County | 161 kV | 100 MW | 1.4 yrs | 67.9 |
| UNKNOWN137682 | Substation-Adjacent | IA | Guthrie County | 161 kV | 100 MW | 1.4 yrs | 67.0 |
| Greenfield (ROLLING HILLS - MADISON COUNTY) | Greenfield | IA | Union County | 345 kV | 600 MW | 1.4 yrs | 66.3 |
| UNKNOWN131000 | Substation-Adjacent | IA | Cass County | 161 kV | 100 MW | 1.4 yrs | 66.3 |
| Greenfield (ATCHISON - BOONEVILLE) | Greenfield | IA | Madison County | 345 kV | 600 MW | 3.5 yrs | 66.1 |
| UNKNOWN131420 | Substation-Adjacent | IA | Taylor County | 161 kV | 100 MW | 1.4 yrs | 66.1 |
| Greenfield (UNKNOWN137755 - GRIMES) | Greenfield | IA | Madison 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 CRESTON substation, Iowa. 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.