TAP170391
SubstationTennessee
At a glance
TAP170391 is an electric transmission substation in Tennessee. It is classified as distribution (69–115 kv) 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 |
|---|---|---|---|---|
| #172234 | 69 kV | — | IN SERVICE | 0.1 mi |
| #172235 | 69 kV | — | IN SERVICE | 1.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP170391, 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 |
|---|---|---|---|---|---|---|---|
| PHILLIPS BEND | Substation-Adjacent | TN | Hawkins County | 500 kV | 1,000 MW | 4.7 yrs | 63.8 |
| EC Coal Hamblen County | Greenfield | TN | Hamblen County | — | — | 3.9 yrs | 63.3 |
| EC Near John Sevier | Greenfield | TN | Hawkins | — | — | 3.9 yrs | 61.9 |
| BULLS GAP | Substation-Adjacent | TN | Hamblen County | 161 kV | 100 MW | 3.9 yrs | 61.7 |
| TAP152082 | Substation-Adjacent | TN | Hawkins County | 161 kV | 100 MW | 4.7 yrs | 61.7 |
| EC Coal Greene County | Greenfield | TN | Greene County | — | — | 3.9 yrs | 61.6 |
| OZ Greene | Greenfield | TN | Greene | — | — | 3.9 yrs | 61.2 |
| OZ Greene | Greenfield | TN | Greene | — | — | 3.9 yrs | 60.3 |
How do candidate sites near TAP170391 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 64 on the 0–100 DC Readiness scale. They fall in Hawkins County, Hamblen County, Hawkins, Greene 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 TAP170391 substation?
TAP170391 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP170391 is below the national midpoint.
How many transmission lines connect to TAP170391 substation?
2 transmission lines terminate at or pass through TAP170391 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 2 miles.
Where is TAP170391 substation located?
TAP170391 is in Tennessee at 36.1795, -82.8102. The datacenter candidate sites closest to it are in Hawkins County, Hamblen County, Hawkins.
Are there datacenter candidate sites near TAP170391 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP170391. The highest-scoring is PHILLIPS BEND at 64/100. 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, “TAP170391 substation, Tennessee”, https://gridcensus.com/substations/tennessee/tap170391-bd7485ff (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 TAP170391 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.