TAP149925
SubstationAlabama · ALABAMA POWER CO
At a glance
TAP149925 is an electric transmission substation in Alabama, on ALABAMA 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #108448 | 161 kV | ALABAMA POWER CO | IN SERVICE | 5.9 mi |
| #129962 | 161 kV | ALABAMA POWER CO | IN SERVICE | 0.1 mi |
| #149545 | 161 kV | ALABAMA POWER CO | IN SERVICE | 33.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP149925, 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 |
|---|---|---|---|---|---|---|---|
| TRINITY | Substation-Adjacent | AL | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 68.0 |
| UNKNOWN114484 | Substation-Adjacent | AL | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 67.9 |
| BROWNS FERRY | Substation-Adjacent | AL | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 67.4 |
| TAP149924 | Substation-Adjacent | AL | Lawrence County | 161 kV | 100 MW | 3.9 yrs | 60.9 |
| Greenfield (WESTPOINT - BROWNS FERRY) | Greenfield | MS | Lawrence County | 500 kV | 1,000 MW | 3.9 yrs | 60.8 |
| UNKNOWN114550 | Substation-Adjacent | AL | Limestone County | 161 kV | 100 MW | 3.9 yrs | 60.0 |
| TAP155269 | Substation-Adjacent | AL | Limestone County | 161 kV | 100 MW | 3.9 yrs | 59.9 |
| UNKNOWN114934 | Substation-Adjacent | AL | Lawrence County | 161 kV | 100 MW | 3.9 yrs | 59.9 |
Who owns the transmission lines at TAP149925?
The 3 connected lines listed above are owned by ALABAMA POWER CO. Line voltages range from 161 kV to 161 kV. Their combined recorded length is about 39.7 miles.
How do candidate sites near TAP149925 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 68 on the 0–100 DC Readiness scale. They fall in Limestone County, Lawrence County. The Alabama average across 3,107 scored sites is 55. 1,164 of those Alabama sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP149925 substation?
TAP149925 has a maximum voltage of 161 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP149925 is above the national midpoint.
How many transmission lines connect to TAP149925 substation?
3 transmission lines terminate at or pass through TAP149925 in the HIFLD line data. The connected lines listed here run at 161 kV. Together the listed lines cover about 39.7 miles.
Who owns TAP149925 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP149925 belong to ALABAMA POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP149925 substation located?
TAP149925 is in Alabama at 34.4717, -87.4474. The datacenter candidate sites closest to it are in Limestone County, Lawrence County.
Are there datacenter candidate sites near TAP149925 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP149925. The highest-scoring is TRINITY at 68/100. Across Alabama, the average DC Readiness score is 55.
More in Alabama
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, “TAP149925 substation, Alabama”, https://gridcensus.com/substations/alabama/tap149925-e2be4878 (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 TAP149925 substation, Alabama 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.