MIAMI
SubstationIndiana · DUKE ENERGY
MIAMI is an electric transmission substation in Indiana, operated by DUKE ENERGY. It is classified as high-voltage (345 kv) and connects 15 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 |
|---|---|---|---|---|
| #47378 | 345 kV | — | IN SERVICE | 4.2 mi |
| #26402 | 345 kV | DUKE ENERGY | IN SERVICE | 72.4 mi |
| #50070 | 345 kV | DUKE ENERGY | IN SERVICE | 22.2 mi |
| #34985 | 345 kV | DUKE ENERGY | IN SERVICE | 38.2 mi |
| #64612 | 345 kV | DUKE ENERGY OHIO INC | — | 0.1 mi |
| #28678 | 138 kV | — | IN SERVICE | 4.5 mi |
| #1959 | 138 kV | — | IN SERVICE | 47.7 mi |
| #34133 | 138 kV | DUKE ENERGY | — | 10.1 mi |
| #48781 | 138 kV | — | IN SERVICE | 4.5 mi |
| #58034 | 138 kV | — | IN SERVICE | 5.7 mi |
| #31299 | 138 kV | DUKE ENERGY OHIO INC | IN SERVICE | 14.9 mi |
| #2087 | 138 kV | DUKE ENERGY | IN SERVICE | 15.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MIAMI, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN113763 | Substation-Adjacent | OH | Hamilton County | 345 kV | 600 MW | 3.2 yrs | 78.5 |
| TERMINAL | Substation-Adjacent | OH | Hamilton County | 345 kV | 600 MW | 3.2 yrs | 78.3 |
| WOODSDALE | Substation-Adjacent | IN | Dearborn County | 345 kV | 600 MW | 3.0 yrs | 77.4 |
| WOODSDALE | Substation-Adjacent | OH | Butler County | 345 kV | 600 MW | 3.2 yrs | 77.4 |
| TODHUNTER SUBSTATION | Substation-Adjacent | OH | Butler County | 345 kV | 600 MW | 3.2 yrs | 76.1 |
| 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 |
| UNKNOWN130105 | Substation-Adjacent | IN | Dearborn County | 345 kV | 600 MW | 3.0 yrs | 74.9 |
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 MIAMI 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.