HAMMOND
SubstationLouisiana · ENTERGY LOUISIANA LLC
HAMMOND is an electric transmission substation in Louisiana, operated by ENTERGY LOUISIANA LLC. It is classified as high-voltage (230 kv) and connects 4 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 |
|---|---|---|---|---|
| #7710 | 230 kV | ENTERGY LOUISIANA LLC | IN SERVICE | 6.1 mi |
| #26408 | 230 kV | ENTERGY LOUISIANA LLC | IN SERVICE | 9.7 mi |
| #28979 | 230 kV | ENTERGY LOUISIANA LLC | IN SERVICE | 26.5 mi |
| #49230 | 230 kV | ENTERGY LOUISIANA LLC | IN SERVICE | 5.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HAMMOND, 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 |
|---|---|---|---|---|---|---|---|
| COLY | Substation-Adjacent | LA | Livingston Parish | 500 kV | 1,000 MW | 1.4 yrs | 74.5 |
| UNKNOWN112507 | Substation-Adjacent | LA | Ascension Parish | 230 kV | 300 MW | 1.4 yrs | 71.4 |
| UNKNOWN112514 | Substation-Adjacent | LA | Ascension Parish | 230 kV | 300 MW | 1.4 yrs | 71.1 |
| UNKNOWN112523 | Substation-Adjacent | LA | Ascension Parish | 230 kV | 300 MW | 1.4 yrs | 70.9 |
| DANIEL STATION | Substation-Adjacent | LA | St. Helena Parish | 500 kV | 1,000 MW | 1.4 yrs | 69.9 |
| UNKNOWN111880 | Substation-Adjacent | LA | Ascension Parish | 230 kV | 300 MW | 1.4 yrs | 69.9 |
| UNKNOWN115489 | Substation-Adjacent | LA | Ascension Parish | 230 kV | 300 MW | 1.4 yrs | 69.6 |
| HAMMOND | Substation-Adjacent | LA | Livingston Parish | 230 kV | 300 MW | 1.4 yrs | 69.4 |
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 HAMMOND 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.