CAYUGA
SubstationIllinois · DUKE ENERGY INDIANA INC
CAYUGA is an electric transmission substation in Illinois, operated by DUKE ENERGY INDIANA INC. It is classified as high-voltage (345 kv) and connects 7 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 |
|---|---|---|---|---|
| #29736 | 345 kV | DUKE ENERGY INDIANA, LLC | IN SERVICE | 32.4 mi |
| #25758 | 345 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 1.2 mi |
| #37423 | 345 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 0.8 mi |
| #65265 | 345 kV | DUKE ENERGY INDIANA INC | — | 0.1 mi |
| #50408 | 230 kV | DUKE ENERGY INDIANA, LLC | IN SERVICE | 52.7 mi |
| #28583 | 230 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 18.5 mi |
| #19362 | 230 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 26.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CAYUGA, 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 |
|---|---|---|---|---|---|---|---|
| NUCOR | Substation-Adjacent | IN | Vermillion County | 345 kV | 600 MW | 4.6 yrs | 71.5 |
| NUCOR | Substation-Adjacent | IN | Montgomery County | 345 kV | 600 MW | 3.0 yrs | 71.3 |
| UNKNOWN124551 | Substation-Adjacent | IN | Vermillion County | 345 kV | 600 MW | 4.6 yrs | 70.7 |
| VERMILLION ENERGY FACILITY | Substation-Adjacent | IN | Vermillion County | 345 kV | 600 MW | 4.6 yrs | 70.3 |
| UNKNOWN123364 | Substation-Adjacent | IN | Tippecanoe County | 138 kV | 100 MW | 3.0 yrs | 70.1 |
| CAYUGA | Substation-Adjacent | IN | Fountain County | 345 kV | 600 MW | 4.6 yrs | 69.4 |
| EUGENE | Substation-Adjacent | IN | Vermillion County | 345 kV | 600 MW | 4.6 yrs | 68.9 |
| WABASH RIVER | Substation-Adjacent | IN | Parke County | 230 kV | 300 MW | 4.6 yrs | 68.4 |
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 CAYUGA substation, Illinois. 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.