TAP138737
SubstationPennsylvania · PENNSYLVANIA POWER CO
At a glance
TAP138737 is an electric transmission substation in Pennsylvania, on PENNSYLVANIA POWER CO's transmission network. It is classified as sub-transmission (138 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 |
|---|---|---|---|---|
| #113440 | 138 kV | PENNSYLVANIA POWER CO | IN SERVICE | 0.1 mi |
| #129836 | 138 kV | PENNSYLVANIA POWER CO | IN SERVICE | 1.3 mi |
| #146419 | 138 kV | PENNSYLVANIA POWER CO | IN SERVICE | 3.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP138737, 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 |
|---|---|---|---|---|---|---|---|
| CRANBERRY | Substation-Adjacent | PA | Beaver County | 500 kV | 1,000 MW | 3.6 yrs | 65.8 |
| OZ Trumbull | Greenfield | OH | Trumbull | — | — | 5.2 yrs | 64.3 |
| OZ Mahoning | Greenfield | OH | Mahoning | — | — | 5.2 yrs | 64.1 |
| EC Near Niles Power Plant | Greenfield | OH | Trumbull | — | — | 5.2 yrs | 63.6 |
| OZ Mahoning | Greenfield | OH | Mahoning | — | — | 5.2 yrs | 63.6 |
| EC Near Niles Power Plant | Greenfield | OH | Trumbull | — | — | 5.2 yrs | 63.4 |
| UNKNOWN113300 | Substation-Adjacent | OH | Trumbull County | 138 kV | 100 MW | 5.2 yrs | 63.4 |
| EC Coal Mahoning County | Greenfield | OH | Mahoning County | — | — | 5.2 yrs | 63.3 |
Who owns the transmission lines at TAP138737?
The 3 connected lines listed above are owned by PENNSYLVANIA POWER CO. Line voltages range from 138 kV to 138 kV. Their combined recorded length is about 4.6 miles.
How do candidate sites near TAP138737 score?
The 8 highest-scoring candidate sites within about 25 miles range from 63 to 66 on the 0–100 DC Readiness scale. They fall in Beaver County, Trumbull, Mahoning, Trumbull County. The Pennsylvania average across 6,497 scored sites is 51.8. 886 of those Pennsylvania sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP138737 substation?
TAP138737 has a maximum voltage of 138 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP138737 is above the national midpoint.
How many transmission lines connect to TAP138737 substation?
3 transmission lines terminate at or pass through TAP138737 in the HIFLD line data. The connected lines listed here run at 138 kV. Together the listed lines cover about 4.6 miles.
Who owns TAP138737 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP138737 belong to PENNSYLVANIA POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP138737 substation located?
TAP138737 is in Pennsylvania at 40.9762, -80.3653. The datacenter candidate sites closest to it are in Beaver County, Trumbull, Mahoning.
Are there datacenter candidate sites near TAP138737 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP138737. The highest-scoring is CRANBERRY at 66/100. Across Pennsylvania, the average DC Readiness score is 51.8.
More in Pennsylvania
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, “TAP138737 substation, Pennsylvania”, https://gridcensus.com/substations/pennsylvania/tap138737-2d500916 (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 TAP138737 substation, Pennsylvania 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.