TAP143359
SubstationLouisiana · ENTERGY MISSISSIPPI INC
TAP143359 is an electric transmission substation in Louisiana, operated by ENTERGY MISSISSIPPI INC. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #4433 | 115 kV | ENTERGY MISSISSIPPI INC | IN SERVICE | 7.2 mi |
| #56574 | 115 kV | ENTERGY MISSISSIPPI INC | IN SERVICE | 23.2 mi |
| #56580 | 115 kV | ENTERGY MISSISSIPPI INC | IN SERVICE | 5.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP143359, 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 |
|---|---|---|---|---|---|---|---|
| MC KNIGHT | Substation-Adjacent | LA | Washington Parish | 500 kV | 1,000 MW | 1.4 yrs | 68.9 |
| Greenfield (MC KNIGHT - DANIEL STATION) | Greenfield | MS | Pearl River County | 500 kV | 1,000 MW | 1.4 yrs | 68.7 |
| UNKNOWN112446 | Substation-Adjacent | MS | Pearl River County | 230 kV | 300 MW | 1.4 yrs | 67.3 |
| Greenfield (MC KNIGHT - DANIEL STATION) | Greenfield | MS | Pearl River County | 500 kV | 1,000 MW | 1.4 yrs | 66.8 |
| BOGALUSA | Substation-Adjacent | MS | Pike County | 500 kV | 1,000 MW | 1.4 yrs | 66.3 |
| Greenfield (FRANKLIN - BOGALUSA) | Greenfield | MS | Walthall County | 500 kV | 1,000 MW | 1.4 yrs | 66.2 |
| UNKNOWN112451 | Substation-Adjacent | LA | Washington Parish | 230 kV | 300 MW | 1.4 yrs | 66.0 |
| Greenfield (MC KNIGHT - DANIEL STATION) | Greenfield | LA | Washington Parish | 500 kV | 1,000 MW | 1.4 yrs | 65.7 |
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 TAP143359 substation, Louisiana. 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.