TERREBONNE
SubstationLouisiana · ENTERGY LOUISIANA INC
TERREBONNE is an electric transmission substation in Louisiana, operated by ENTERGY LOUISIANA INC. It is classified as high-voltage (230 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 |
|---|---|---|---|---|
| #6527 | 230 kV | ENTERGY LOUISIANA INC | IN SERVICE | 5.0 mi |
| #27785 | 230 kV | ENTERGY LOUISIANA INC | IN SERVICE | 10.2 mi |
| #42181 | 230 kV | ENTERGY LOUISIANA INC | IN SERVICE | 0.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TERREBONNE, 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 |
|---|---|---|---|---|---|---|---|
| TERREBONNE | Substation-Adjacent | LA | Terrebonne Parish | 230 kV | 300 MW | 1.4 yrs | 69.1 |
| UNKNOWN114308 | Substation-Adjacent | LA | St. John the Baptist Parish | 230 kV | 300 MW | 1.4 yrs | 69.1 |
| LITTLE GYPSY STATION | Substation-Adjacent | LA | St. Charles Parish | 230 kV | 300 MW | 1.4 yrs | 68.3 |
| TAP143381 | Substation-Adjacent | LA | St. John the Baptist Parish | 230 kV | 300 MW | 1.4 yrs | 68.2 |
| UNKNOWN112605 | Substation-Adjacent | LA | Terrebonne Parish | 230 kV | 300 MW | 1.4 yrs | 67.5 |
| UNKNOWN114136 | Substation-Adjacent | LA | St. Charles Parish | 230 kV | 300 MW | 1.4 yrs | 67.5 |
| NORCO | Substation-Adjacent | LA | St. Charles Parish | 230 kV | 300 MW | 1.4 yrs | 67.4 |
| UNKNOWN114129 | Substation-Adjacent | LA | St. John the Baptist Parish | 230 kV | 300 MW | 1.4 yrs | 66.7 |
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 TERREBONNE 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.