KENTUCKY DAM
SubstationKentucky · TENNESSEE VALLEY AUTHORITY
At a glance
KENTUCKY DAM is an electric transmission substation in Kentucky, on TENNESSEE VALLEY AUTHORITY's transmission network. It is classified as sub-transmission (138 kv) and connects 11 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #150584 | 161 kV | TENNESSEE VALLEY AUTHORITY | — | 0.2 mi |
| #150917 | 161 kV | — | IN SERVICE | 5.2 mi |
| #101772 | 161 kV | — | IN SERVICE | 34.3 mi |
| #105038 | 161 kV | — | IN SERVICE | 6.4 mi |
| #112487 | 161 kV | — | IN SERVICE | 5.0 mi |
| #104944 | 161 kV | — | IN SERVICE | 23.2 mi |
| #126898 | 161 kV | — | IN SERVICE | 6.4 mi |
| #137137 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 3.7 mi |
| #161196 | 69 kV | — | IN SERVICE | 19.4 mi |
| #104022 | 69 kV | KENTUCKY UTILITIES CO | IN SERVICE | 13.3 mi |
| #122171 | 69 kV | — | IN SERVICE | 4.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of KENTUCKY DAM, 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 |
|---|---|---|---|---|---|---|---|
| MARSHALL | Substation-Adjacent | KY | Marshall County | 500 kV | 1,000 MW | 4.3 yrs | 68.2 |
| UNKNOWN122858 | Substation-Adjacent | KY | McCracken County | 161 kV | 100 MW | 3.9 yrs | 63.4 |
| UNKNOWN122859 | Substation-Adjacent | KY | McCracken County | 161 kV | 100 MW | 3.9 yrs | 63.3 |
| EC FFE Graves County | Greenfield | KY | Graves County | — | — | 3.9 yrs | 62.6 |
| OZ Graves | Greenfield | KY | Graves | — | — | 3.9 yrs | 61.6 |
| TAP169246 | Substation-Adjacent | KY | McCracken County | 69 kV | 50 MW | 3.9 yrs | 61.5 |
| UNKNOWN169245 | Substation-Adjacent | KY | McCracken County | 69 kV | 50 MW | 3.9 yrs | 61.5 |
| GOLO | Substation-Adjacent | KY | Graves County | 161 kV | 100 MW | 3.9 yrs | 61.4 |
How does KENTUCKY DAM compare with other substations in Kentucky?
Kentucky has 2,070 substation records in HIFLD, of which 190 carry a station name; the rest are unnamed tap points, risers and line ends. 102 named substations in the state are in KENTUCKY DAM's 115–229 kV band (54% of named stations). 19 sit in a higher band. 19 named substations in Kentucky operate at 345 kV or above. The highest voltage recorded in the state is 765 kV, and the state median is 138 kV.
Who owns the transmission lines at KENTUCKY DAM?
The 11 connected lines listed above are owned by TENNESSEE VALLEY AUTHORITY, KENTUCKY UTILITIES CO. Line voltages range from 69 kV to 161 kV. Their combined recorded length is about 121.8 miles.
How do candidate sites near KENTUCKY DAM score?
The 8 highest-scoring candidate sites within about 25 miles range from 61 to 68 on the 0–100 DC Readiness scale. They fall in Marshall County, McCracken County, Graves County, Graves. 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 KENTUCKY DAM substation?
KENTUCKY DAM has a maximum voltage of 161 kV and a minimum of 69 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so KENTUCKY DAM is above the national midpoint.
How many transmission lines connect to KENTUCKY DAM substation?
11 transmission lines terminate at or pass through KENTUCKY DAM in the HIFLD line data. The connected lines listed here run at 161 kV, 69 kV. Together the listed lines cover about 121.8 miles.
Who owns KENTUCKY DAM substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at KENTUCKY DAM belong to TENNESSEE VALLEY AUTHORITY, and others to KENTUCKY UTILITIES CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is KENTUCKY DAM substation located?
KENTUCKY DAM is in Kentucky at 37.0156, -88.2687. The datacenter candidate sites closest to it are in Marshall County, McCracken County, Graves County.
Are there datacenter candidate sites near KENTUCKY DAM substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of KENTUCKY DAM. The highest-scoring is MARSHALL at 68/100. Across Kentucky, the average DC Readiness score is 52.8.
Other 161 kV substations in Kentucky
- REID· 15 lines
- SUMMER SHADE· 13 lines
- GREEN RIVER· 11 lines
- BOWLING GREEN· 10 lines
- C-33 (DOE)· 10 lines
- HOPKINSVILLE· 10 lines
- MAYFIELD· 9 lines
- BARKLEY· 8 lines
- All named substations in Kentucky· 190 stations
- Datacenter candidate sites in Kentucky· 7,741 sites
- Brownfield and retired plant sites in Kentucky
- Substations by state
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, “KENTUCKY DAM substation, Kentucky”, https://gridcensus.com/substations/kentucky/kentucky-dam-776c38e7 (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 KENTUCKY DAM 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.