TAP139490
SubstationMissouri
TAP139490 is an electric transmission substation in Missouri. It is classified as sub-transmission (138 kv) and connects 3 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 TAP139490, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN117709 | Substation-Adjacent | MO | Jefferson County | 345 kV | 600 MW | 4.3 yrs | 62.5 |
| ST FRANCOIS | Substation-Adjacent | MO | St. Francois County | 345 kV | 600 MW | 4.3 yrs | 61.2 |
| UNKNOWN117769 | Substation-Adjacent | MO | Reynolds County | 345 kV | 600 MW | 4.3 yrs | 60.2 |
| EC Near Walton Street Substation | Greenfield | MO | St. Francois | — | — | 4.3 yrs | 57.2 |
| EC Near Rush Island | Greenfield | MO | Jefferson | — | — | 4.3 yrs | 57.1 |
| UNKNOWN121747 | Substation-Adjacent | MO | Jefferson County | 138 kV | 100 MW | 4.3 yrs | 56.9 |
| EC Near Walton Street Substation | Greenfield | MO | St. Francois | — | — | 4.3 yrs | 56.9 |
| EC Near Walton Street Substation | Greenfield | MO | St. Francois | — | — | 4.3 yrs | 56.2 |
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
Every site and score for TAP139490 substation, Missouri 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.