NORTH SLIDELL
SubstationLouisiana · ENTERGY LOUISIANA LLC
At a glance
NORTH SLIDELL is an electric transmission substation in Louisiana, on ENTERGY LOUISIANA LLC's transmission network. It is classified as unclassified 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 |
|---|---|---|---|---|
| #109848 | 230 kV | ENTERGY LOUISIANA LLC | IN SERVICE | 16.8 mi |
| #127935 | 230 kV | — | IN SERVICE | 18.1 mi |
| #138184 | 230 kV | — | IN SERVICE | 4.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of NORTH SLIDELL, 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 |
|---|---|---|---|---|---|---|---|
| MICHOUD STATION | Substation-Adjacent | LA | Orleans Parish | 230 kV | 300 MW | 4.3 yrs | 66.5 |
| UNKNOWN110434 | Substation-Adjacent | MS | Hancock County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| UNKNOWN112635 | Substation-Adjacent | LA | St. Charles Parish | 230 kV | 300 MW | 4.3 yrs | 66.1 |
| TAP143433 | Substation-Adjacent | MS | Hancock County | 230 kV | 300 MW | 3.9 yrs | 64.3 |
| UNKNOWN112652 | Substation-Adjacent | LA | Orleans Parish | 230 kV | 300 MW | 4.3 yrs | 64.2 |
| DELTA | Substation-Adjacent | LA | Orleans Parish | 230 kV | 300 MW | 4.3 yrs | 64.2 |
| UNKNOWN112547 | Substation-Adjacent | LA | St. Tammany Parish | 230 kV | 300 MW | 4.3 yrs | 64.1 |
| UNKNOWN113056 | Substation-Adjacent | LA | Orleans Parish | 230 kV | 300 MW | 4.3 yrs | 64.1 |
Who owns the transmission lines at NORTH SLIDELL?
The 3 connected lines listed above are owned by ENTERGY LOUISIANA LLC. Line voltages range from 230 kV to 230 kV. Their combined recorded length is about 39.5 miles.
How do candidate sites near NORTH SLIDELL score?
The 8 highest-scoring candidate sites within about 25 miles range from 64 to 67 on the 0–100 DC Readiness scale. They fall in Orleans Parish, Hancock County, St. Charles Parish, St. Tammany Parish. The Louisiana average across 1,762 scored sites is 53.1. 615 of those Louisiana sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to NORTH SLIDELL substation?
3 transmission lines terminate at or pass through NORTH SLIDELL in the HIFLD line data. The connected lines listed here run at 230 kV. Together the listed lines cover about 39.5 miles.
Who owns NORTH SLIDELL substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at NORTH SLIDELL belong to ENTERGY LOUISIANA LLC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is NORTH SLIDELL substation located?
NORTH SLIDELL is in Louisiana at 30.3148, -89.7808. The datacenter candidate sites closest to it are in Orleans Parish, Hancock County, St. Charles Parish.
Are there datacenter candidate sites near NORTH SLIDELL substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of NORTH SLIDELL. The highest-scoring is MICHOUD STATION at 67/100. Across Louisiana, the average DC Readiness score is 53.1.
More in Louisiana
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “NORTH SLIDELL substation, Louisiana”, https://gridcensus.com/substations/louisiana/north-slidell-6ca25c11 (data as of June 29, 2026).
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
Every site and score for NORTH SLIDELL substation, Louisiana is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.