TAP155563
SubstationTennessee · TENNESSEE VALLEY AUTHORITY
At a glance
TAP155563 is an electric transmission substation in Tennessee, operated by TENNESSEE VALLEY AUTHORITY. It is classified as sub-transmission (138 kv) and connects 5 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 |
|---|---|---|---|---|
| #148085 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 0.0 mi |
| #172407 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 4.6 mi |
| #172408 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 4.6 mi |
| #172413 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 9.9 mi |
| #172492 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 2.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP155563, 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 |
|---|---|---|---|---|---|---|---|
| PIN HOOK | Substation-Adjacent | TN | Davidson County | 500 kV | 1,000 MW | 3.9 yrs | 72.8 |
| WILSON | Substation-Adjacent | TN | Wilson County | 500 kV | 1,000 MW | 3.9 yrs | 71.4 |
| DAVIDSON | Substation-Adjacent | TN | Williamson County | 500 kV | 1,000 MW | 3.9 yrs | 71.3 |
| RUTHERFORD | Substation-Adjacent | TN | Rutherford County | 500 kV | 1,000 MW | 3.9 yrs | 71.0 |
| MAURY | Substation-Adjacent | TN | Maury County | 500 kV | 1,000 MW | 3.9 yrs | 69.3 |
| Music City Solar | Brownfield | TN | Davidson | — | 2 MW | 3.9 yrs | 69.3 |
| OZ Davidson | Greenfield | TN | Davidson | — | — | 3.9 yrs | 67.2 |
| OZ Davidson | Greenfield | TN | Davidson | — | — | 3.9 yrs | 66.9 |
Who owns the transmission lines at TAP155563?
The 5 connected lines listed above are owned by TENNESSEE VALLEY AUTHORITY. Line voltages range from 161 kV to 161 kV. Their combined recorded length is about 21.6 miles.
How do candidate sites near TAP155563 score?
The 8 highest-scoring candidate sites within about 25 miles range from 67 to 73 on the 0–100 DC Readiness scale. They fall in Davidson County, Wilson County, Williamson County, Rutherford County. The Tennessee average across 2,190 scored sites is 57. 886 of those Tennessee sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP155563 substation?
TAP155563 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 TAP155563 is above the national midpoint.
How many transmission lines connect to TAP155563 substation?
5 transmission lines terminate at or pass through TAP155563 in the HIFLD line data. The connected lines listed here run at 161 kV. Together the listed lines cover about 21.6 miles.
Who owns TAP155563 substation?
HIFLD lists TENNESSEE VALLEY AUTHORITY as the operator of TAP155563.
Where is TAP155563 substation located?
TAP155563 is in Tennessee at 35.8536, -86.6605. The datacenter candidate sites closest to it are in Davidson County, Wilson County, Williamson County.
Are there datacenter candidate sites near TAP155563 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP155563. The highest-scoring is PIN HOOK at 73/100. Across Tennessee, the average DC Readiness score is 57.
More in Tennessee
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, “TAP155563 substation, Tennessee”, https://gridcensus.com/substations/tennessee/tap155563-c78d7b2a (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 TAP155563 substation, Tennessee 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.