TAP142171
SubstationMississippi · ENTERGY MISSISSIPPI INC
At a glance
TAP142171 is an electric transmission substation in Mississippi, on ENTERGY MISSISSIPPI INC'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 |
|---|---|---|---|---|
| #109309 | — | ENTERGY MISSISSIPPI INC | IN SERVICE | 0.0 mi |
| #110840 | — | ENTERGY MISSISSIPPI INC | IN SERVICE | 8.6 mi |
| #134663 | — | ENTERGY MISSISSIPPI INC | IN SERVICE | 8.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP142171, 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 |
|---|---|---|---|---|---|---|---|
| INDIANOLA | Substation-Adjacent | MS | Sunflower County | 230 kV | 300 MW | 4.3 yrs | 58.4 |
| UNKNOWN110697 | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.3 |
| UNKNOWN110695 | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.2 |
| UNKNOWN110700 | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.2 |
| UNKNOWN110693 | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.2 |
| UNKNOWN110696 | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.2 |
| GERALD ANDRUS STATION | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.1 |
| UNKNOWN110692 | Substation-Adjacent | MS | Washington County | 230 kV | 300 MW | 4.3 yrs | 58.0 |
Who owns the transmission lines at TAP142171?
The 3 connected lines listed above are owned by ENTERGY MISSISSIPPI INC. Their combined recorded length is about 17.2 miles.
How do candidate sites near TAP142171 score?
The 8 highest-scoring candidate sites within about 25 miles range from 58 to 58 on the 0–100 DC Readiness scale. They fall in Sunflower County, Washington County. The Mississippi average across 3,104 scored sites is 53. 694 of those Mississippi sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to TAP142171 substation?
3 transmission lines terminate at or pass through TAP142171 in the HIFLD line data. Together the listed lines cover about 17.2 miles.
Who owns TAP142171 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP142171 belong to ENTERGY MISSISSIPPI INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP142171 substation located?
TAP142171 is in Mississippi at 33.2561, -90.9054. The datacenter candidate sites closest to it are in Sunflower County, Washington County.
Are there datacenter candidate sites near TAP142171 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP142171. The highest-scoring is INDIANOLA at 58/100. Across Mississippi, the average DC Readiness score is 53.
More in Mississippi
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, “TAP142171 substation, Mississippi”, https://gridcensus.com/substations/mississippi/tap142171-5154b52b (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 TAP142171 substation, Mississippi 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.