WELSH
SubstationLouisiana
At a glance
WELSH is an electric transmission substation in Louisiana. It is classified as unclassified and connects 0 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
Ownership
No owner is recorded for the lines that connect here.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of WELSH, 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 |
|---|---|---|---|---|---|---|---|
| GILLIS | Substation-Adjacent | LA | Calcasieu Parish | 230 kV | 300 MW | 4.3 yrs | 57.7 |
| OZ St. Landry | Greenfield | LA | St. Landry | — | — | 4.3 yrs | 56.8 |
| Greenfield (NELSON - RICHARD) | Greenfield | WA | Acadia Parish | 500 kV | 1,000 MW | 4.3 yrs | 56.5 |
| OZ Jefferson Davis | Greenfield | LA | Jefferson Davis | — | — | 4.3 yrs | 56.2 |
| OZ Calcasieu | Greenfield | LA | Calcasieu | — | — | 4.3 yrs | 56.1 |
| OZ Calcasieu | Greenfield | LA | Calcasieu | — | — | 4.3 yrs | 55.8 |
| UNKNOWN112457 | Substation-Adjacent | LA | Acadia Parish | 138 kV | 100 MW | 4.3 yrs | 54.3 |
| CHALKLEY BULK | Substation-Adjacent | LA | Calcasieu Parish | 138 kV | 100 MW | 4.3 yrs | 54.1 |
How do candidate sites near WELSH score?
The 8 highest-scoring candidate sites within about 25 miles range from 54 to 58 on the 0–100 DC Readiness scale. They fall in Calcasieu Parish, St. Landry, Acadia Parish, Jefferson Davis. 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 WELSH substation?
0 transmission lines terminate at or pass through WELSH in the HIFLD line data.
Where is WELSH substation located?
WELSH is in Louisiana at 30.2362, -92.8172. The datacenter candidate sites closest to it are in Calcasieu Parish, St. Landry, Acadia Parish.
Are there datacenter candidate sites near WELSH substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of WELSH. The highest-scoring is GILLIS at 58/100. 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, “WELSH substation, Louisiana”, https://gridcensus.com/substations/louisiana/welsh-bc21329b (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 WELSH 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.