TAP156043
SubstationIllinois · TENNESSEE VALLEY AUTHORITY
TAP156043 is an electric transmission substation in Illinois, operated by TENNESSEE VALLEY AUTHORITY. 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 |
|---|---|---|---|---|
| #8561 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 11.2 mi |
| #8722 | 161 kV | — | IN SERVICE | 11.5 mi |
| #9902 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 12.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP156043, 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 |
|---|---|---|---|---|---|---|---|
| COMMERCE PARK | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 3.7 yrs | 73.9 |
| TAP156045 | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 3.6 yrs | 70.6 |
| CASKY | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 3.6 yrs | 70.5 |
| UNKNOWN156877 | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 3.6 yrs | 70.4 |
| HOPKINSVILLE | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 4.6 yrs | 70.1 |
| BARKERS MILL | Substation-Adjacent | TN | Montgomery County | 161 kV | 100 MW | 3.7 yrs | 70.1 |
| HOPKINSVILLE | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 3.6 yrs | 68.6 |
| FRUITHILL | Substation-Adjacent | KY | Christian County | 161 kV | 100 MW | 4.6 yrs | 68.0 |
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 TAP156043 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.