TAP137559
SubstationIndiana · DUKE ENERGY INDIANA INC
At a glance
TAP137559 is an electric transmission substation in Indiana, on DUKE ENERGY INDIANA INC's transmission network. It is classified as distribution (69–115 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #100344 | 69 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 5.9 mi |
| #134283 | 69 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 7.0 mi |
| #140134 | 69 kV | DUKE ENERGY INDIANA INC | IN SERVICE | 10.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP137559, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN124886 | Substation-Adjacent | IN | Dearborn County | 345 kV | 600 MW | 3.0 yrs | 71.1 |
| MIAMI | Substation-Adjacent | OH | Dearborn County | 345 kV | 600 MW | 5.2 yrs | 69.3 |
| BATESVILLE | Substation-Adjacent | IN | Ripley County | 345 kV | 600 MW | 3.0 yrs | 63.3 |
| UNKNOWN124876 | Substation-Adjacent | IN | Franklin County | 138 kV | 100 MW | 3.0 yrs | 60.7 |
| EC Near Connersville | Greenfield | IN | Fayette | — | — | 3.0 yrs | 60.0 |
| UNKNOWN137579 | Substation-Adjacent | IN | Dearborn County | 138 kV | 100 MW | 3.0 yrs | 59.9 |
| TAP173564 | Substation-Adjacent | IN | Dearborn County | 138 kV | 100 MW | 3.0 yrs | 59.8 |
| EC Near Tanners Creek | Greenfield | IN | Dearborn | — | — | 3.0 yrs | 59.7 |
Who owns the transmission lines at TAP137559?
The 3 connected lines listed above are owned by DUKE ENERGY INDIANA INC. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 23.2 miles.
How do candidate sites near TAP137559 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 71 on the 0–100 DC Readiness scale. They fall in Dearborn County, Ripley County, Franklin County, Fayette. The Indiana average across 8,629 scored sites is 54. 1,024 of those Indiana sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP137559 substation?
TAP137559 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP137559 is below the national midpoint.
How many transmission lines connect to TAP137559 substation?
3 transmission lines terminate at or pass through TAP137559 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 23.2 miles.
Who owns TAP137559 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP137559 belong to DUKE ENERGY INDIANA INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP137559 substation located?
TAP137559 is in Indiana at 39.4032, -85.2052. The datacenter candidate sites closest to it are in Dearborn County, Ripley County, Franklin County.
Are there datacenter candidate sites near TAP137559 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP137559. The highest-scoring is UNKNOWN124886 at 71/100. Across Indiana, the average DC Readiness score is 54.
More in Indiana
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “TAP137559 substation, Indiana”, https://gridcensus.com/substations/indiana/tap137559-37af8c10 (data as of June 29, 2026).
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
Every site and score for TAP137559 substation, Indiana is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.