TAP155581
SubstationKentucky
At a glance
TAP155581 is an electric transmission substation in Kentucky. 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
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 |
|---|---|---|---|---|
| #111668 | 161 kV | — | IN SERVICE | 17.0 mi |
| #132091 | 161 kV | — | IN SERVICE | 12.6 mi |
| #144195 | 161 kV | — | IN SERVICE | 2.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP155581, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN124236 | Substation-Adjacent | KY | Hancock County | 345 kV | 600 MW | 4.3 yrs | 64.4 |
| TAP139938 | Substation-Adjacent | KY | Hancock County | 161 kV | 100 MW | 4.3 yrs | 63.0 |
| EC Coal Hancock County | Greenfield | KY | Hancock County | — | — | 4.3 yrs | 61.6 |
| EC Coal Grayson County | Greenfield | KY | Grayson County | — | — | 3.9 yrs | 61.2 |
| EC FFE Ohio County | Greenfield | KY | Ohio County | — | — | 3.9 yrs | 61.0 |
| EC Near Kenneth C Coleman | Greenfield | KY | Hancock | — | — | 4.3 yrs | 60.1 |
| UNKNOWN155591 | Substation-Adjacent | KY | Grayson County | 138 kV | 100 MW | 3.9 yrs | 59.7 |
| UNKNOWN124242 | Substation-Adjacent | KY | Hancock County | 161 kV | 100 MW | 4.3 yrs | 59.0 |
How do candidate sites near TAP155581 score?
The 8 highest-scoring candidate sites within about 25 miles range from 59 to 64 on the 0–100 DC Readiness scale. They fall in Hancock County, Grayson County, Ohio County, Hancock. 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 TAP155581 substation?
TAP155581 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 TAP155581 is above the national midpoint.
How many transmission lines connect to TAP155581 substation?
3 transmission lines terminate at or pass through TAP155581 in the HIFLD line data. The connected lines listed here run at 161 kV. Together the listed lines cover about 31.6 miles.
Where is TAP155581 substation located?
TAP155581 is in Kentucky at 37.7837, -86.5173. The datacenter candidate sites closest to it are in Hancock County, Grayson County, Ohio County.
Are there datacenter candidate sites near TAP155581 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP155581. The highest-scoring is UNKNOWN124236 at 64/100. 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, “TAP155581 substation, Kentucky”, https://gridcensus.com/substations/kentucky/tap155581-49fbc26d (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 TAP155581 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.