TAP155739
SubstationKentucky · KENTUCKY UTILITIES CO
At a glance
TAP155739 is an electric transmission substation in Kentucky, on KENTUCKY UTILITIES CO's transmission network. It is classified as sub-transmission (138 kv) and connects 3 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 |
|---|---|---|---|---|
| #155994 | 161 kV | — | IN SERVICE | 17.9 mi |
| #156543 | 161 kV | KENTUCKY UTILITIES CO | IN SERVICE | 2.2 mi |
| #156544 | 161 kV | — | IN SERVICE | 5.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP155739, 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 |
|---|---|---|---|---|---|---|---|
| MIDDLETOWN 345 KV | Substation-Adjacent | KY | Jefferson County | 345 kV | 600 MW | 3.9 yrs | 70.0 |
| UNKNOWN125223 | Substation-Adjacent | KY | Oldham County | 345 kV | 600 MW | 3.9 yrs | 69.7 |
| EC Near Zorn | Greenfield | KY | Jefferson | — | — | 3.9 yrs | 67.6 |
| EC Near Zorn | Greenfield | KY | Jefferson | — | — | 3.9 yrs | 66.7 |
| NORTHSIDE | Substation-Adjacent | IN | Clark County | 345 kV | 600 MW | 3.0 yrs | 66.6 |
| UNKNOWN129145 | Substation-Adjacent | KY | Bullitt County | 345 kV | 600 MW | 4.7 yrs | 66.4 |
| UNKNOWN130644 | Substation-Adjacent | KY | Oldham County | 138 kV | 100 MW | 3.9 yrs | 65.4 |
| TAP155641 | Substation-Adjacent | KY | Jefferson County | 138 kV | 100 MW | 3.9 yrs | 65.3 |
Who owns the transmission lines at TAP155739?
The 3 connected lines listed above are owned by KENTUCKY UTILITIES CO. Line voltages range from 161 kV to 161 kV. Their combined recorded length is about 25.3 miles.
How do candidate sites near TAP155739 score?
The 8 highest-scoring candidate sites within about 25 miles range from 65 to 70 on the 0–100 DC Readiness scale. They fall in Jefferson County, Oldham County, Jefferson, Clark County. The Kentucky average across 7,741 scored sites is 52.8. 1,261 of those Kentucky sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP155739 substation?
TAP155739 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 TAP155739 is above the national midpoint.
How many transmission lines connect to TAP155739 substation?
3 transmission lines terminate at or pass through TAP155739 in the HIFLD line data. The connected lines listed here run at 161 kV. Together the listed lines cover about 25.3 miles.
Who owns TAP155739 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP155739 belong to KENTUCKY UTILITIES CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP155739 substation located?
TAP155739 is in Kentucky at 38.0889, -85.3502. The datacenter candidate sites closest to it are in Jefferson County, Oldham County, Jefferson.
Are there datacenter candidate sites near TAP155739 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP155739. The highest-scoring is MIDDLETOWN 345 KV at 70/100. Across Kentucky, the average DC Readiness score is 52.8.
More in Kentucky
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, “TAP155739 substation, Kentucky”, https://gridcensus.com/substations/kentucky/tap155739-f935f362 (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 TAP155739 substation, Kentucky 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.