HAEFLING
SubstationKentucky · KENTUCKY UTILITIES CO
HAEFLING is an electric transmission substation in Kentucky, operated by KENTUCKY UTILITIES CO. It is classified as sub-transmission (138 kv) and connects 5 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 |
|---|---|---|---|---|
| #2751 | 138 kV | KENTUCKY UTILITIES CO | IN SERVICE | 10.1 mi |
| #2783 | 138 kV | KENTUCKY UTILITIES CO | IN SERVICE | 1.8 mi |
| #12618 | 138 kV | KENTUCKY UTILITIES CO | IN SERVICE | 7.4 mi |
| #19142 | 138 kV | KENTUCKY UTILITIES CO | — | 3.6 mi |
| #48325 | 138 kV | KENTUCKY UTILITIES CO | IN SERVICE | 2.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HAEFLING, 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 |
|---|---|---|---|---|---|---|---|
| TAP140103 | Substation-Adjacent | KY | Woodford County | 345 kV | 600 MW | 3.6 yrs | 73.4 |
| UNKNOWN129961 | Substation-Adjacent | KY | Fayette County | 345 kV | 600 MW | 3.6 yrs | 73.2 |
| BROWN PLANT | Substation-Adjacent | KY | Jessamine County | 345 kV | 600 MW | 3.6 yrs | 73.0 |
| J K SMITH (345 KV) | Substation-Adjacent | KY | Clark County | 345 kV | 600 MW | 3.6 yrs | 71.4 |
| UNKNOWN130246 | Substation-Adjacent | KY | Fayette County | 138 kV | 100 MW | 3.6 yrs | 71.3 |
| UNKNOWN129960 | Substation-Adjacent | KY | Fayette County | 138 kV | 100 MW | 3.6 yrs | 71.2 |
| UNKNOWN130278 | Substation-Adjacent | KY | Fayette County | 138 kV | 100 MW | 3.6 yrs | 70.8 |
| HAEFLING | Substation-Adjacent | KY | Fayette County | 138 kV | 100 MW | 3.6 yrs | 70.5 |
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
This page shows a public slice of the GridCensus dataset for HAEFLING 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.