TAP141994
SubstationLouisiana · SOUTHWESTERN ELECTRIC POWER CO
At a glance
TAP141994 is an electric transmission substation in Louisiana, on SOUTHWESTERN ELECTRIC POWER CO's transmission network. It is classified as sub-transmission (138 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
Ownership
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #112721 | 138 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 1.8 mi |
| #135216 | 138 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 0.0 mi |
| #140229 | 138 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 10.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP141994, 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 |
|---|---|---|---|---|---|---|---|
| SOUTHWEST SHREVEPORT | Substation-Adjacent | LA | Caddo Parish | 345 kV | 600 MW | 4.3 yrs | 65.5 |
| LONGWOOD | Substation-Adjacent | LA | Caddo Parish | 345 kV | 600 MW | 4.3 yrs | 65.0 |
| ARSENAL HILL | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 4.3 yrs | 61.4 |
| EDWARDS STREET | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 4.3 yrs | 61.4 |
| FORT HUMBUG | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 4.3 yrs | 61.3 |
| MC WILLIE | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 4.3 yrs | 61.2 |
| EC Coal Harrison County | Greenfield | TX | Harrison County | — | — | 3.5 yrs | 60.7 |
| EC Near Lieberman | Greenfield | LA | Caddo | — | — | 4.3 yrs | 60.5 |
Who owns the transmission lines at TAP141994?
The 3 connected lines listed above are owned by SOUTHWESTERN ELECTRIC POWER CO. Line voltages range from 138 kV to 138 kV. Their combined recorded length is about 12.2 miles.
How do candidate sites near TAP141994 score?
The 8 highest-scoring candidate sites within about 25 miles range from 61 to 66 on the 0–100 DC Readiness scale. They fall in Caddo Parish, Harrison County, Caddo. 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
What voltage is TAP141994 substation?
TAP141994 has a maximum voltage of 138 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP141994 is above the national midpoint.
How many transmission lines connect to TAP141994 substation?
3 transmission lines terminate at or pass through TAP141994 in the HIFLD line data. The connected lines listed here run at 138 kV. Together the listed lines cover about 12.2 miles.
Who owns TAP141994 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP141994 belong to SOUTHWESTERN ELECTRIC POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP141994 substation located?
TAP141994 is in Louisiana at 32.5588, -93.9880. The datacenter candidate sites closest to it are in Caddo Parish, Harrison County, Caddo.
Are there datacenter candidate sites near TAP141994 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP141994. The highest-scoring is SOUTHWEST SHREVEPORT at 66/100. 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, “TAP141994 substation, Louisiana”, https://gridcensus.com/substations/louisiana/tap141994-d459d3e2 (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 TAP141994 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.