TAP137391
SubstationOhio · DAYTON POWER & LIGHT CO
At a glance
TAP137391 is an electric transmission substation in Ohio, on DAYTON POWER & LIGHT CO'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 |
|---|---|---|---|---|
| #116573 | 69 kV | DAYTON POWER & LIGHT CO | IN SERVICE | 7.2 mi |
| #121330 | 69 kV | DAYTON POWER & LIGHT CO | IN SERVICE | 0.1 mi |
| #128737 | 69 kV | DAYTON POWER & LIGHT CO | IN SERVICE | 4.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP137391, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN113602 | Substation-Adjacent | OH | Franklin County | 345 kV | 600 MW | 5.2 yrs | 65.9 |
| ADKINS | Substation-Adjacent | OH | Pickaway County | 345 kV | 600 MW | 5.2 yrs | 64.4 |
| OZ Franklin | Greenfield | OH | Franklin | — | — | 5.2 yrs | 64.1 |
| OZ Franklin | Greenfield | OH | Franklin | — | — | 5.2 yrs | 62.9 |
| EC Coal Pickaway County | Greenfield | OH | Pickaway County | — | — | 5.2 yrs | 62.5 |
| OZ Franklin | Greenfield | OH | Franklin | — | — | 5.2 yrs | 62.4 |
| EC Coal Pickaway County | Greenfield | OH | Pickaway County | — | — | 5.2 yrs | 62.3 |
| ATLANTA | Substation-Adjacent | OH | Pickaway County | 345 kV | 600 MW | 5.2 yrs | 62.2 |
Who owns the transmission lines at TAP137391?
The 3 connected lines listed above are owned by DAYTON POWER & LIGHT CO. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 12.1 miles.
How do candidate sites near TAP137391 score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 66 on the 0–100 DC Readiness scale. They fall in Franklin County, Pickaway County, Franklin. The Ohio average across 3,933 scored sites is 54.8. 835 of those Ohio sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP137391 substation?
TAP137391 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 TAP137391 is below the national midpoint.
How many transmission lines connect to TAP137391 substation?
3 transmission lines terminate at or pass through TAP137391 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 12.1 miles.
Who owns TAP137391 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP137391 belong to DAYTON POWER & LIGHT CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP137391 substation located?
TAP137391 is in Ohio at 39.5489, -83.3074. The datacenter candidate sites closest to it are in Franklin County, Pickaway County, Franklin.
Are there datacenter candidate sites near TAP137391 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP137391. The highest-scoring is UNKNOWN113602 at 66/100. Across Ohio, the average DC Readiness score is 54.8.
More in Ohio
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, “TAP137391 substation, Ohio”, https://gridcensus.com/substations/ohio/tap137391-40aedd1c (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 TAP137391 substation, Ohio 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.