TAP144746
SubstationMississippi · TENNESSEE VALLEY AUTHORITY
TAP144746 is an electric transmission substation in Mississippi, 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 |
|---|---|---|---|---|
| #4030 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 8.5 mi |
| #13451 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 0.1 mi |
| #13452 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 4.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP144746, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN156972 | Substation-Adjacent | MS | Lauderdale County | 230 kV | 300 MW | 1.4 yrs | 69.8 |
| SHUQUALAK | Substation-Adjacent | MS | Noxubee County | 161 kV | 100 MW | 1.4 yrs | 68.5 |
| UNKNOWN109380 | Substation-Adjacent | MS | Kemper County | 161 kV | 100 MW | 1.4 yrs | 68.2 |
| TAP144790 | Substation-Adjacent | MS | Noxubee County | 161 kV | 100 MW | 1.4 yrs | 67.7 |
| MACON | Substation-Adjacent | MS | Noxubee County | 161 kV | 100 MW | 1.4 yrs | 67.3 |
| RATCLIFFE | Substation-Adjacent | MS | Kemper County | 230 kV | 300 MW | 1.4 yrs | 67.3 |
| UNKNOWN109384 | Substation-Adjacent | MS | Kemper County | 161 kV | 100 MW | 1.4 yrs | 67.0 |
| UNKNOWN109640 | Substation-Adjacent | MS | Lauderdale County | 230 kV | 300 MW | 1.4 yrs | 66.9 |
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 TAP144746 substation, Mississippi. 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.