HARDIN
SubstationKentucky · KENTUCKY UTILITIES CO
HARDIN is an electric transmission substation in Kentucky, operated by KENTUCKY UTILITIES CO. It is classified as high-voltage (345 kv) and connects 6 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 & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #328 | 345 kV | KENTUCKY UTILITIES CO | IN SERVICE | 69.5 mi |
| #49375 | 345 kV | KENTUCKY UTILITIES CO | IN SERVICE | 58.2 mi |
| #25699 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 6.0 mi |
| #18125 | 138 kV | — | IN SERVICE | 2.2 mi |
| #31658 | 138 kV | KENTUCKY UTILITIES CO | IN SERVICE | 0.8 mi |
| #41712 | 138 kV | KENTUCKY UTILITIES CO | IN SERVICE | 1.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HARDIN, 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 |
|---|---|---|---|---|---|---|---|
| HARDIN | Substation-Adjacent | KY | Grayson County | 345 kV | 600 MW | 3.6 yrs | 66.1 |
| KENTUCKY MILLS | Substation-Adjacent | KY | Hancock County | 161 kV | 100 MW | 3.0 yrs | 65.6 |
| UNKNOWN155591 | Substation-Adjacent | KY | Grayson County | 138 kV | 100 MW | 3.6 yrs | 65.6 |
| TAP155984 | Substation-Adjacent | KY | Breckinridge County | 161 kV | 100 MW | 3.0 yrs | 65.5 |
| Greenfield (DAVIESS COUNTY - HARDIN) | Greenfield | KY | Breckinridge County | 345 kV | 600 MW | 3.6 yrs | 65.0 |
| Greenfield (DAVIESS COUNTY - HARDIN) | Greenfield | KY | Breckinridge County | 345 kV | 600 MW | 3.6 yrs | 64.9 |
| CANNELTON HYDROELECTRIC PLANT | Substation-Adjacent | KY | Hancock County | 138 kV | 100 MW | 3.0 yrs | 64.2 |
| MEADE COUNTY | Substation-Adjacent | KY | Breckinridge County | 161 kV | 100 MW | 3.0 yrs | 64.0 |
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.
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This page shows a public slice of the GridCensus dataset for HARDIN substation, Kentucky. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.