TAP168946
SubstationAlabama
At a glance
TAP168946 is an electric transmission substation in Alabama. It is classified as unclassified and connects 2 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
Ownership
No owner is recorded for the lines that connect here.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #170465 | — | — | IN SERVICE | 0.0 mi |
| #170466 | — | — | IN SERVICE | 1.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP168946, 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 |
|---|---|---|---|---|---|---|---|
| MADISON | Substation-Adjacent | AL | Madison County | 500 kV | 1,000 MW | 3.9 yrs | 71.1 |
| LIMESTONE | Substation-Adjacent | AL | Limestone County | 500 kV | 1,000 MW | 3.9 yrs | 69.5 |
| USARMY/NASA Redstone Arsenal | Brownfield | AL | Madison | — | 10 MW | 3.9 yrs | 69.2 |
| OZ Madison | Greenfield | AL | Madison | — | — | 3.9 yrs | 66.3 |
| OZ Madison | Greenfield | AL | Madison | — | — | 3.9 yrs | 65.7 |
| OZ Madison | Greenfield | AL | Madison | — | — | 3.9 yrs | 65.6 |
| TAP155769 | Substation-Adjacent | AL | Madison County | 161 kV | 100 MW | 3.9 yrs | 64.7 |
| HUNTSVILLE | Substation-Adjacent | AL | Madison County | 161 kV | 100 MW | 3.9 yrs | 64.7 |
How do candidate sites near TAP168946 score?
The 8 highest-scoring candidate sites within about 25 miles range from 65 to 71 on the 0–100 DC Readiness scale. They fall in Madison County, Limestone County, Madison. 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 TAP168946 substation?
2 transmission lines terminate at or pass through TAP168946 in the HIFLD line data. Together the listed lines cover about 1 miles.
Where is TAP168946 substation located?
TAP168946 is in Alabama at 34.7353, -86.6276. The datacenter candidate sites closest to it are in Madison County, Limestone County, Madison.
Are there datacenter candidate sites near TAP168946 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP168946. The highest-scoring is MADISON at 71/100. 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, “TAP168946 substation, Alabama”, https://gridcensus.com/substations/alabama/tap168946-318e78cd (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 TAP168946 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.