Substation-Adjacent Datacenter Sites in Alabama
At a glance
Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
Top substation-adjacent sites in Alabama
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| WIDOWS CREEK 500KV | Substation-Adjacent | Dade County | 500 kV | 1,000 MW | 3.9 yrs | 73.0 |
| AUTAUGAVILLE | Substation-Adjacent | Autauga County | 500 kV | 1,000 MW | 3.9 yrs | 71.9 |
| MADISON | Substation-Adjacent | Madison County | 500 kV | 1,000 MW | 3.9 yrs | 71.1 |
| SNOWDOUN | Substation-Adjacent | Montgomery County | 500 kV | 1,000 MW | 3.9 yrs | 69.6 |
| LIMESTONE | Substation-Adjacent | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 69.5 |
| UNKNOWN109244 | Substation-Adjacent | Jefferson County | 500 kV | 1,000 MW | 3.9 yrs | 69.0 |
| BELLEFONTE | Substation-Adjacent | Jackson County | 500 kV | 1,000 MW | 3.9 yrs | 68.3 |
| TAP152961 | Substation-Adjacent | Jackson County | 500 kV | 1,000 MW | 3.9 yrs | 68.0 |
| TRINITY | Substation-Adjacent | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 68.0 |
| UNKNOWN114484 | Substation-Adjacent | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 67.9 |
| SOUTH BESSEMER | Substation-Adjacent | Bibb County | 500 kV | 1,000 MW | 3.9 yrs | 67.8 |
| UNKNOWN108997 | Substation-Adjacent | Houston County | 500 kV | 1,000 MW | 3.9 yrs | 67.8 |
| TAP153404 | Substation-Adjacent | Jackson County | 500 kV | 1,000 MW | 3.9 yrs | 67.6 |
| CLAY | Substation-Adjacent | St. Clair County | 500 kV | 1,000 MW | 3.9 yrs | 67.6 |
| MAGELLA | Substation-Adjacent | Jefferson County | 230 kV | 300 MW | 3.9 yrs | 67.5 |
| BROWNS FERRY | Substation-Adjacent | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 67.4 |
| WEST MONTGOMERY | Substation-Adjacent | Montgomery County | 230 kV | 300 MW | 3.9 yrs | 67.2 |
| UNKNOWN109347 | Substation-Adjacent | Harris County | 230 kV | 300 MW | 3.9 yrs | 67.1 |
| TAP155138 | Substation-Adjacent | Cullman County | 500 kV | 1,000 MW | 3.9 yrs | 66.9 |
| WEST VERNON | Substation-Adjacent | Lamar County | 500 kV | 1,000 MW | 3.9 yrs | 66.9 |
| WACHOVIA | Substation-Adjacent | Jefferson County | 230 kV | 300 MW | 3.9 yrs | 66.8 |
| ACIPCO EAF NO.3 CU | Substation-Adjacent | Jefferson County | 230 kV | 300 MW | 3.9 yrs | 66.6 |
| TAP142723 | Substation-Adjacent | Jefferson County | 230 kV | 300 MW | 3.9 yrs | 66.5 |
| UNKNOWN133801 | Substation-Adjacent | Autauga County | 500 kV | 1,000 MW | 3.9 yrs | 66.5 |
| UNKNOWN110220 | Substation-Adjacent | Jefferson County | 230 kV | 300 MW | 3.9 yrs | 66.4 |
How does Alabama compare with other states for substation-adjacent sites?
With 1,164 sites, Alabama ranks 10th of the 52 states that have any substation-adjacent candidate sites. Texas leads with 3,635. Nationally, substation-adjacent sites average 57.4/100 DC Readiness, above the 53.0 average across all site types. Across every site type, Alabama averages 55.0, the 18th-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 3.9 years.
Where are the highest-scoring substation-adjacent sites in Alabama?
The top 25 range from 73.0 to 66.4 on the 0–100 DC Readiness Score. They are concentrated in Jefferson County (6), Limestone County (4), Jackson County (3) and Autauga County (2). By grid region, 25 are in SERC.
County pages: Jefferson County · Limestone County · Jackson County · Autauga County
What power, fiber and flood exposure do these substation-adjacent sites have?
Of the top 25 substation-adjacent sites in Alabama, 25 have a recorded nearest-substation voltage, with a median of 500 kV; for 25 that substation is rated 230 kV or higher. Their counties have a median of 9 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 35 km. The median interconnection-queue wait in their markets is 3.9 years. None of the 3 with a mapped FEMA flood zone sits in a high-risk (A or V) zone.
Frequently asked questions
How many substation-adjacent datacenter sites are in Alabama?
GridCensus catalogs 1,164 substation-adjacent datacenter candidate sites in Alabama, 3% of the national total for this type (10th of 52 states).
What is a substation-adjacent datacenter site?
Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
What is the best substation-adjacent datacenter site in Alabama?
By DC Readiness Score, WIDOWS CREEK 500KV in Dade County ranks first at 73.0/100, followed by AUTAUGAVILLE in Autauga County at 71.9.
Which Alabama counties have the best substation-adjacent sites?
The top 25 substation-adjacent sites in Alabama are concentrated in Jefferson County (6), Limestone County (4), Jackson County (3) and Autauga County (2).
How does Alabama score for datacenters overall?
All 3,107 scored sites in Alabama average 55.0/100 DC Readiness, the 18th-highest of 52 states, against a national average of 53.0.
More on substation-adjacent sites and Alabama
Substation-Adjacent sites in other states
- Substation-Adjacent sites in Texas· 3,635 sites
- Substation-Adjacent sites in California· 1,573 sites
- Substation-Adjacent sites in Florida· 1,539 sites
- Substation-Adjacent sites in Georgia· 1,530 sites
- Substation-Adjacent sites in Oklahoma· 1,344 sites
- Substation-Adjacent sites in Washington· 1,343 sites
- Substation-Adjacent sites in Minnesota· 1,270 sites
- Substation-Adjacent sites in Kentucky· 1,261 sites
Dataset updated . Screening estimates derived from public data sources.
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Substation-Adjacent datacenter sites in Alabama”, https://gridcensus.com/site-types/substation/alabama (data as of November 12, 2026).
Go deeper than the public screen
Every site and score for Substation-Adjacent sites in 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.