APPANOOSE
SubstationIowa
APPANOOSE is an electric transmission substation in Iowa. 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
Operator not catalogued for this substation.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of APPANOOSE, 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 |
|---|---|---|---|---|---|---|---|
| OTTUMWA GENERATION STATION | Substation-Adjacent | IA | Wapello County | 345 kV | 600 MW | 4.3 yrs | 63.5 |
| Centerville | Brownfield | IA | Appanoose County | — | 60 MW | 4.3 yrs | 60.0 |
| EC Near Centerville | Greenfield | IA | Appanoose | — | — | 4.3 yrs | 59.2 |
| EC Near Centerville | Greenfield | IA | Appanoose | — | — | 4.3 yrs | 59.2 |
| OZ Appanoose | Greenfield | IA | Appanoose | — | — | 4.3 yrs | 59.1 |
| OZ Davis | Greenfield | IA | Davis | — | — | 4.3 yrs | 59.0 |
| EC Near Centerville | Greenfield | IA | Appanoose | — | — | 4.3 yrs | 58.9 |
| EC Near Centerville | Greenfield | IA | Appanoose | — | — | 4.3 yrs | 58.9 |
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
Every site and score for APPANOOSE substation, Iowa is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.