TAP139945
SubstationIndiana
At a glance
TAP139945 is an electric transmission substation in Indiana. It is classified as unclassified 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
No owner is recorded for the lines that connect here.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #119658 | 69 kV | — | IN SERVICE | 0.3 mi |
| #150196 | 69 kV | — | IN SERVICE | 3.9 mi |
| #103686 | — | — | IN SERVICE | 0.0 mi |
| #130760 | — | — | IN SERVICE | 0.3 mi |
| #132410 | — | — | IN SERVICE | 0.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP139945, 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 |
|---|---|---|---|---|---|---|---|
| QUALITECH | Substation-Adjacent | IN | Hendricks County | 345 kV | 600 MW | 3.0 yrs | 64.8 |
| AMO | Substation-Adjacent | IN | Hendricks County | 345 kV | 600 MW | 3.0 yrs | 64.1 |
| NUCOR | Substation-Adjacent | IN | Montgomery County | 345 kV | 600 MW | 3.0 yrs | 63.8 |
| FRANKFORT | Substation-Adjacent | IN | Clinton County | 230 kV | 300 MW | 3.0 yrs | 63.0 |
| EC Near Caterpillar | Greenfield | IN | Tippecanoe | — | — | 3.0 yrs | 62.2 |
| THORNTOWN | Substation-Adjacent | IN | Boone County | 230 kV | 300 MW | 3.0 yrs | 62.1 |
| UNKNOWN154084 | Substation-Adjacent | IN | Tippecanoe County | 138 kV | 100 MW | 3.0 yrs | 61.9 |
| UNKNOWN124561 | Substation-Adjacent | IN | Montgomery County | 230 kV | 300 MW | 3.0 yrs | 61.8 |
How do candidate sites near TAP139945 score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 65 on the 0–100 DC Readiness scale. They fall in Hendricks County, Montgomery County, Clinton County, Tippecanoe. 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
How many transmission lines connect to TAP139945 substation?
3 transmission lines terminate at or pass through TAP139945 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 4.8 miles.
Where is TAP139945 substation located?
TAP139945 is in Indiana at 39.9634, -86.8089. The datacenter candidate sites closest to it are in Hendricks County, Montgomery County, Clinton County.
Are there datacenter candidate sites near TAP139945 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP139945. The highest-scoring is QUALITECH at 65/100. 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, “TAP139945 substation, Indiana”, https://gridcensus.com/substations/indiana/tap139945-a38f5205 (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 TAP139945 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.