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Gridcensus

TAP146751

Substation

Pennsylvania · PPL ELECTRIC UTILITIES CORP

Max voltage
138
kV

At a glance

TAP146751 is a 138 kV electric substation in Pennsylvania on PPL ELECTRIC UTILITIES CORP's transmission network, recorded in the HIFLD transmission dataset. 3 transmission lines connect to it. The highest-scoring datacenter candidate site within about 25 miles is ROCK SPRINGS in Harford County, with a DC Readiness score of 69/100.

TAP146751 is an electric transmission substation in Pennsylvania, on PPL ELECTRIC UTILITIES CORP'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

Max voltage138 kV
Min voltage138 kV
Voltage classSub-transmission (138 kV)
Connected lines3

Ownership

Line owner (most lines)PPL ELECTRIC UTILITIES CORP
Coordinates40.0466, -76.2601

Connected transmission lines

Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.

Line IDVoltageOwnerStatusLength
#102436138 kVPPL ELECTRIC UTILITIES CORP—1.2 mi
#121748138 kVPPL ELECTRIC UTILITIES CORP—0.2 mi
#156857138 kVPPL ELECTRIC UTILITIES CORPIN SERVICE1.3 mi

Browse the full transmission-line map →

Nearby datacenter candidate sites

Scored candidate sites within roughly 25 miles of TAP146751, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.

Candidate sites near TAP146751 substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
ROCK SPRINGSSubstation-AdjacentMDHarford County500 kV1,000 MW5.3 yrs68.8
SOUTH READINGSubstation-AdjacentPABerks County230 kV300 MW3.6 yrs66.2
DELTA YORK ECSubstation-AdjacentPAHarford County500 kV1,000 MW3.6 yrs65.8
CONASTONESubstation-AdjacentMDHarford County500 kV1,000 MW5.3 yrs64.7
UNKNOWN123855Substation-AdjacentPABerks County230 kV300 MW3.6 yrs64.4
PEACH BOTTOMSubstation-AdjacentPAHarford County500 kV1,000 MW3.6 yrs64.0
PEACH BOTTOMSubstation-AdjacentPAHarford County500 kV1,000 MW3.6 yrs64.0
UNKNOWN123860Substation-AdjacentPABerks County230 kV300 MW3.6 yrs63.5

Who owns the transmission lines at TAP146751?

The 3 connected lines listed above are owned by PPL ELECTRIC UTILITIES CORP. Line voltages range from 138 kV to 138 kV. Their combined recorded length is about 2.7 miles.

How do candidate sites near TAP146751 score?

The 8 highest-scoring candidate sites within about 25 miles range from 64 to 69 on the 0–100 DC Readiness scale. They fall in Harford County, Berks 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 TAP146751 substation?

TAP146751 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 TAP146751 is above the national midpoint.

How many transmission lines connect to TAP146751 substation?

3 transmission lines terminate at or pass through TAP146751 in the HIFLD line data. The connected lines listed here run at 138 kV. Together the listed lines cover about 2.7 miles.

Who owns TAP146751 substation?

HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP146751 belong to PPL ELECTRIC UTILITIES CORP. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.

Where is TAP146751 substation located?

TAP146751 is in Pennsylvania at 40.0466, -76.2601. The datacenter candidate sites closest to it are in Harford County, Berks County.

Are there datacenter candidate sites near TAP146751 substation?

GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP146751. The highest-scoring is ROCK SPRINGS at 69/100. 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, “TAP146751 substation, Pennsylvania”, https://gridcensus.com/substations/pennsylvania/tap146751-876a5428 (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 TAP146751 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.