TAP139111
SubstationPennsylvania · PPL ELECTRIC UTILITIES CORP
At a glance
TAP139111 is an electric transmission substation in Pennsylvania, on PPL ELECTRIC UTILITIES CORP'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
Ownership
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #127482 | 69 kV | PPL ELECTRIC UTILITIES CORP | IN SERVICE | 2.2 mi |
| #130309 | 69 kV | PPL ELECTRIC UTILITIES CORP | IN SERVICE | 0.1 mi |
| #131522 | 69 kV | PPL ELECTRIC UTILITIES CORP | IN SERVICE | 2.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP139111, 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 |
|---|---|---|---|---|---|---|---|
| THREE MILE ISLAND | Substation-Adjacent | PA | York County | 500 kV | 1,000 MW | 3.6 yrs | 63.4 |
| JUNIATA | Substation-Adjacent | PA | Perry County | 500 kV | 1,000 MW | 3.6 yrs | 62.5 |
| UNKNOWN124218 | Substation-Adjacent | PA | Cumberland County | 230 kV | 300 MW | 3.6 yrs | 61.1 |
| UNKNOWN123852 | Substation-Adjacent | PA | Lebanon County | 230 kV | 300 MW | 3.6 yrs | 60.7 |
| BRUNNER ISLAND | Substation-Adjacent | PA | York County | 230 kV | 300 MW | 3.6 yrs | 60.2 |
| HUMMELSTOWN | Substation-Adjacent | PA | Dauphin County | 230 kV | 300 MW | 3.6 yrs | 60.1 |
| UNKNOWN123405 | Substation-Adjacent | PA | Dauphin County | 230 kV | 300 MW | 3.6 yrs | 60.1 |
| OZ Lancaster | Greenfield | PA | Lancaster | — | — | 3.6 yrs | 60.0 |
Who owns the transmission lines at TAP139111?
The 3 connected lines listed above are owned by PPL ELECTRIC UTILITIES CORP. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 4.3 miles.
How do candidate sites near TAP139111 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 63 on the 0–100 DC Readiness scale. They fall in York County, Perry County, Cumberland County, Lebanon 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 TAP139111 substation?
TAP139111 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 TAP139111 is below the national midpoint.
How many transmission lines connect to TAP139111 substation?
3 transmission lines terminate at or pass through TAP139111 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 4.3 miles.
Who owns TAP139111 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP139111 belong to PPL ELECTRIC UTILITIES CORP. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP139111 substation located?
TAP139111 is in Pennsylvania at 40.3135, -76.8230. The datacenter candidate sites closest to it are in York County, Perry County, Cumberland County.
Are there datacenter candidate sites near TAP139111 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP139111. The highest-scoring is THREE MILE ISLAND at 63/100. 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, “TAP139111 substation, Pennsylvania”, https://gridcensus.com/substations/pennsylvania/tap139111-0080de34 (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 TAP139111 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.