TAP139406
SubstationIllinois · AMEREN ILLINOIS COMPANY
TAP139406 is an electric transmission substation in Illinois, operated by AMEREN ILLINOIS COMPANY. 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 |
|---|---|---|---|---|
| #18781 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 3.4 mi |
| #27165 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 17.2 mi |
| #49853 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 13.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP139406, 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 |
|---|---|---|---|---|---|---|---|
| GOOSE CREEK | Substation-Adjacent | IL | Piatt County | 345 kV | 600 MW | 4.6 yrs | 70.8 |
| TAP138277 | Substation-Adjacent | IL | Piatt County | 345 kV | 600 MW | 4.6 yrs | 70.6 |
| FARADAY | Substation-Adjacent | IL | Macon County | 345 kV | 600 MW | 4.6 yrs | 70.0 |
| PANA | Substation-Adjacent | IL | Christian County | 345 kV | 600 MW | 4.6 yrs | 69.8 |
| KINCAID STATION | Substation-Adjacent | IL | Christian County | 345 kV | 600 MW | 4.6 yrs | 69.4 |
| TAP170250 | Substation-Adjacent | IL | De Witt County | 345 kV | 600 MW | 4.6 yrs | 68.6 |
| TAP138261 | Substation-Adjacent | IL | Macon County | 345 kV | 600 MW | 4.6 yrs | 68.4 |
| OREANA | Substation-Adjacent | IL | Macon County | 345 kV | 600 MW | 4.6 yrs | 68.3 |
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 TAP139406 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.