SUB 39
SubstationIllinois
SUB 39 is an electric transmission substation in Illinois. It is classified as high-voltage (345 kv) and connects 6 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 SUB 39, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN131382 | Substation-Adjacent | IA | Scott County | 345 kV | 600 MW | 4.3 yrs | 68.3 |
| SUB 91 | Substation-Adjacent | IA | Scott County | 345 kV | 600 MW | 4.3 yrs | 67.7 |
| SUB 39 | Substation-Adjacent | IL | Rock Island County | 345 kV | 600 MW | 4.8 yrs | 67.2 |
| OAK GROVE | Substation-Adjacent | IL | Rock Island County | 345 kV | 600 MW | 4.8 yrs | 66.6 |
| QUAD CITIES | Substation-Adjacent | IL | Clinton County | 345 kV | 600 MW | 4.8 yrs | 66.6 |
| UNKNOWN122188 | Substation-Adjacent | IL | Clinton County | 345 kV | 600 MW | 4.8 yrs | 66.5 |
| ROCK CREEK | Substation-Adjacent | IA | Clinton County | 345 kV | 600 MW | 4.3 yrs | 66.0 |
| EC Coal Scott County | Greenfield | IA | Scott County | — | — | 4.3 yrs | 65.8 |
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 SUB 39 substation, Illinois 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.