TAP153684
SubstationIllinois · UNION ELECTRIC CO - (MO)
TAP153684 is an electric transmission substation in Illinois, operated by UNION ELECTRIC CO - (MO). 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #23220 | 138 kV | UNION ELECTRIC CO - (MO) | IN SERVICE | 0.1 mi |
| #27916 | 138 kV | UNION ELECTRIC CO - (MO) | IN SERVICE | 4.8 mi |
| #47457 | 138 kV | UNION ELECTRIC CO - (MO) | IN SERVICE | 2.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP153684, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN117769 | Substation-Adjacent | MO | Dent County | 345 kV | 600 MW | 4.6 yrs | 64.5 |
| TAP153680 | Substation-Adjacent | MO | Reynolds County | 345 kV | 600 MW | 4.6 yrs | 63.3 |
| UNKNOWN117908 | Substation-Adjacent | MO | Crawford County | 161 kV | 100 MW | 4.6 yrs | 62.9 |
| TAP139490 | Substation-Adjacent | MO | Washington County | 138 kV | 100 MW | 4.6 yrs | 62.3 |
| TAP153228 | Substation-Adjacent | MO | Washington County | 138 kV | 100 MW | 4.6 yrs | 62.0 |
| UNKNOWN117742 | Substation-Adjacent | MO | Washington County | 161 kV | 100 MW | 4.6 yrs | 61.8 |
| UNKNOWN117894 | Substation-Adjacent | MO | Dent County | 161 kV | 100 MW | 4.6 yrs | 61.4 |
| Greenfield (UNKNOWN117769 - UNKNOWN122781) | Greenfield | MO | Reynolds County | 345 kV | 600 MW | 4.6 yrs | 61.2 |
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 TAP153684 substation, Illinois. 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.