TAP142503
SubstationAlabama · ALABAMA POWER CO
At a glance
TAP142503 is an electric transmission substation in Alabama, on ALABAMA POWER CO's transmission network. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #109872 | 115 kV | ALABAMA POWER CO | IN SERVICE | 1.3 mi |
| #126555 | 115 kV | ALABAMA POWER CO | IN SERVICE | 3.3 mi |
| #142118 | 115 kV | ALABAMA POWER CO | IN SERVICE | 0.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP142503, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN115708 | Substation-Adjacent | GA | Heard County | 500 kV | 1,000 MW | 5.8 yrs | 69.9 |
| UNKNOWN115703 | Substation-Adjacent | GA | Heard County | 500 kV | 1,000 MW | 5.8 yrs | 66.1 |
| UNKNOWN109349 | Substation-Adjacent | AL | Lee County | 230 kV | 300 MW | 3.9 yrs | 65.3 |
| UNKNOWN109348 | Substation-Adjacent | AL | Chambers County | 230 kV | 300 MW | 3.9 yrs | 63.5 |
| UNKNOWN115706 | Substation-Adjacent | GA | Heard County | 230 kV | 300 MW | 5.8 yrs | 61.9 |
| UNKNOWN115640 | Substation-Adjacent | GA | Carroll County | 230 kV | 300 MW | 5.8 yrs | 60.9 |
| UNKNOWN113547 | Substation-Adjacent | GA | Harris County | 230 kV | 300 MW | 5.8 yrs | 60.8 |
| TAP142477 | Substation-Adjacent | AL | Lee County | 115 kV | 100 MW | 3.9 yrs | 60.7 |
Who owns the transmission lines at TAP142503?
The 3 connected lines listed above are owned by ALABAMA POWER CO. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 4.8 miles.
How do candidate sites near TAP142503 score?
The 8 highest-scoring candidate sites within about 25 miles range from 61 to 70 on the 0–100 DC Readiness scale. They fall in Heard County, Lee County, Chambers County, Carroll 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 TAP142503 substation?
TAP142503 has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP142503 is at the national midpoint.
How many transmission lines connect to TAP142503 substation?
3 transmission lines terminate at or pass through TAP142503 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 4.8 miles.
Who owns TAP142503 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP142503 belong to ALABAMA POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP142503 substation located?
TAP142503 is in Alabama at 33.1320, -85.3540. The datacenter candidate sites closest to it are in Heard County, Lee County, Chambers County.
Are there datacenter candidate sites near TAP142503 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP142503. The highest-scoring is UNKNOWN115708 at 70/100. 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, “TAP142503 substation, Alabama”, https://gridcensus.com/substations/alabama/tap142503-0099c984 (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 TAP142503 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.