ANNISTON
SubstationAlabama · ALABAMA POWER CO
At a glance
ANNISTON is an electric transmission substation in Alabama, on ALABAMA POWER CO's transmission network. It is classified as unclassified and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #101444 | 230 kV | ALABAMA POWER CO | IN SERVICE | 3.8 mi |
| #111205 | 230 kV | ALABAMA POWER CO | IN SERVICE | 0.1 mi |
| #138020 | 230 kV | ALABAMA POWER CO | IN SERVICE | 9.4 mi |
| #163894 | — | ALABAMA POWER CO | IN SERVICE | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ANNISTON, 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 |
|---|---|---|---|---|---|---|---|
| Anniston Army Depot | Brownfield | AL | Calhoun | — | 7 MW | 3.9 yrs | 63.2 |
| UNKNOWN110143 | Substation-Adjacent | AL | Etowah County | 230 kV | 300 MW | 3.9 yrs | 62.1 |
| UNKNOWN110198 | Substation-Adjacent | AL | Calhoun County | 230 kV | 300 MW | 3.9 yrs | 61.7 |
| UNKNOWN109577 | Substation-Adjacent | AL | Calhoun County | 230 kV | 300 MW | 3.9 yrs | 61.6 |
| TAP145804 | Substation-Adjacent | AL | Calhoun County | 230 kV | 300 MW | 3.9 yrs | 61.5 |
| OZ Talladega | Greenfield | AL | Talladega | — | — | 3.9 yrs | 60.5 |
| TAP150120 | Substation-Adjacent | AL | Cherokee County | 230 kV | 300 MW | 3.9 yrs | 60.4 |
| OZ Etowah | Greenfield | AL | Etowah | — | — | 3.9 yrs | 60.0 |
Who owns the transmission lines at ANNISTON?
The 4 connected lines listed above are owned by ALABAMA POWER CO. Line voltages range from 230 kV to 230 kV. Their combined recorded length is about 13.3 miles.
How do candidate sites near ANNISTON score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 63 on the 0–100 DC Readiness scale. They fall in Calhoun, Etowah County, Calhoun County, Talladega. 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
How many transmission lines connect to ANNISTON substation?
1 transmission line terminate at or pass through ANNISTON in the HIFLD line data. The connected lines listed here run at 230 kV. Together the listed lines cover about 13.3 miles.
Who owns ANNISTON substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at ANNISTON belong to ALABAMA POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is ANNISTON substation located?
ANNISTON is in Alabama at 33.6516, -85.8608. The datacenter candidate sites closest to it are in Calhoun, Etowah County, Calhoun County.
Are there datacenter candidate sites near ANNISTON substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of ANNISTON. The highest-scoring is Anniston Army Depot at 63/100. 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, “ANNISTON substation, Alabama”, https://gridcensus.com/substations/alabama/anniston-bf860b4f (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 ANNISTON 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.