JEFFERSON
SubstationIndiana · DUKE ENERGY INDIANA INC
JEFFERSON is an electric transmission substation in Indiana, operated by DUKE ENERGY INDIANA INC. It is classified as extra-high-voltage (765 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 & 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 |
|---|---|---|---|---|
| #32908 | 765 kV | DUKE ENERGY INDIANA, LLC | IN SERVICE | 125.4 mi |
| #60810 | 765 kV | — | IN SERVICE | 161.4 mi |
| #26358 | 345 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 1.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of JEFFERSON, 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 |
|---|---|---|---|---|---|---|---|
| BECKJORD | Substation-Adjacent | KY | Campbell County | 345 kV | 600 MW | 3.2 yrs | 77.3 |
| UNKNOWN130105 | Substation-Adjacent | KY | Kenton County | 345 kV | 600 MW | 3.2 yrs | 75.9 |
| Tanners Creek | Brownfield | IN | Dearborn | — | 1,100 MW | — | 75.2 |
| UNKNOWN124886 | Substation-Adjacent | KY | Boone County | 345 kV | 600 MW | 3.0 yrs | 74.4 |
| UNKNOWN130552 | Substation-Adjacent | KY | Boone County | 345 kV | 600 MW | 3.0 yrs | 74.0 |
| SILVER GROVE | Substation-Adjacent | KY | Campbell County | 345 kV | 600 MW | 3.2 yrs | 73.3 |
| UNKNOWN130555 | Substation-Adjacent | KY | Boone County | 138 kV | 100 MW | 3.2 yrs | 73.2 |
| UNKNOWN130292 | Substation-Adjacent | KY | Kenton County | 138 kV | 100 MW | 3.2 yrs | 73.0 |
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.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for JEFFERSON substation, Indiana. 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.