TAP144780
SubstationMississippi · TENNESSEE VALLEY AUTHORITY
TAP144780 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 |
|---|---|---|---|---|
| #7905 | 161 kV | — | IN SERVICE | 16.3 mi |
| #27071 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 9.4 mi |
| #45539 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 1.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP144780, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN109619 | Substation-Adjacent | MS | Oktibbeha County | 500 kV | 1,000 MW | 1.4 yrs | 78.1 |
| WESTPOINT | Substation-Adjacent | MS | Clay County | 500 kV | 1,000 MW | 1.4 yrs | 76.0 |
| UNKNOWN109622 | Substation-Adjacent | MS | Oktibbeha County | 161 kV | 100 MW | 1.4 yrs | 73.9 |
| LOWNDES | Substation-Adjacent | MS | Lowndes County | 500 kV | 1,000 MW | 1.4 yrs | 73.5 |
| UNKNOWN109568 | Substation-Adjacent | MS | Oktibbeha County | 161 kV | 100 MW | 1.4 yrs | 73.0 |
| Greenfield (UNKNOWN109619 - WESTPOINT) | Greenfield | MS | Clay County | 500 kV | 1,000 MW | 1.4 yrs | 72.9 |
| Greenfield (WESTPOINT - BROWNS FERRY) | Greenfield | MS | Clay County | 500 kV | 1,000 MW | 1.4 yrs | 72.2 |
| UNKNOWN109569 | Substation-Adjacent | MS | Oktibbeha County | 161 kV | 100 MW | 1.4 yrs | 72.0 |
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 TAP144780 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.