Electric Substations in Pennsylvania
251 named substations in Pennsylvania, with the highest-voltage facilities listed first. Each substation profile shows voltage class, connected transmission lines, and the datacenter candidate sites closest to it.
At a glance
How is Pennsylvania's substation network split by voltage?
By maximum voltage, the named substations break down as 25 at 500 kV and above; 12 at 345–499 kV; 97 at 230–344 kV; 80 at 115–229 kV; 14 at 69–114 kV; 23 withvoltage not recorded. 15% of Pennsylvania's named substations operate at 345 kV or above, against 8% across all 16,654 named US substations. The state median of 230 kV is above the national median of 115 kV.
How does Pennsylvania compare with other states?
Pennsylvania ranks 18th of 50 states and DC by number of named substations and 10th by named substations at 345 kV or above. It also has 6,497 scored datacenter candidate sites with an average DC Readiness score of 52.1 (national average 53), and an average power sub-score of 34.1 against 37.4 nationally. Most of those sites (6,493) are in the PJM market.
Which substations in Pennsylvania have the highest voltage?
| Substation | Max voltage | Connected lines | Line owner |
|---|---|---|---|
| ALBURTIS | 500 kV | 6 | PPL ELECTRIC UTILITIES CORP |
| CABOT | 500 kV | 9 | WEST PENN POWER CO |
| CENTERPOINT | 500 kV | 4 | PECO ENERGY CO |
| CONEMAUGH | 500 kV | 4 | PENNSYLVANIA ELECTRIC CO |
| CRANBERRY | 500 kV | 4 | MONONGAHELA POWER CO |
| DELTA YORK EC | 500 kV | 2 | PECO ENERGY CO |
| ELROY | 500 kV | 4 | JERSEY CENTRAL POWER & LT CO |
| HATFIELD | 500 kV | 4 | WEST PENN POWER COMPANY |
| HOSENSACK | 500 kV | 15 | PPL ELECTRIC UTILITIES CORP |
| HOSENSACK (500 KV SUB) | 500 kV | 5 | PPL ELECTRIC UTILITIES CORP |
| JUNIATA | 500 kV | 9 | PPL ELECTRIC UTILITIES CORP |
| KEYSTONE | 500 kV | 6 | WEST PENN POWER CO |
| LACKAWANNA | 500 kV | 10 | PPL ELECTRIC UTILITIES CORP |
| LIMERICK (500KV SUB) | 500 kV | 4 | PECO ENERGY CO |
| PEACH BOTTOM | 500 kV | 6 | PECO ENERGY CO |
| PEACH BOTTOM | 500 kV | 8 | PECO ENERGY CO |
| RONCO | 500 kV | 3 | WEST PENN POWER COMPANY |
| SOUTHBEND | 500 kV | 3 | WEST PENN POWER CO |
| STEEL CITY | 500 kV | 4 | PPL ELECTRIC UTILITIES CORP |
| SUNBURY | 500 kV | 18 | PPL ELECTRIC UTILITIES CORP |
| SUSQUEHANNA | 500 kV | 5 | PPL ELECTRIC UTILITIES CORP |
| THREE MILE ISLAND | 500 kV | 5 | METROPOLITAN EDISON CO |
| WESCOSVILLE | 500 kV | 13 | PPL ELECTRIC UTILITIES CORP |
| WHITPAIN | 500 kV | 11 | PECO ENERGY CO |
| YUKON | 500 kV | 11 | WEST PENN POWER CO |
| BRUNOT ISLAND | 345 kV | 8 | DUQUESNE LIGHT CO |
| CLINTON | 345 kV | 3 | DUQUESNE LIGHT CO |
| COLLIER | 345 kV | 10 | DUQUESNE LIGHT CO |
| CRESCENT | 345 kV | 13 | DUQUESNE LIGHT CO |
| EERIE SOUTH | 345 kV | 9 | PENNSYLVANIA ELECTRIC CO |
| ERIE WEST | 345 kV | 5 | PENNSYLVANIA ELECTRIC CO |
| HANDSOME LAKE | 345 kV | 3 | PENNSYLVANIA ELECTRIC CO |
| HOMER CITY | 345 kV | 9 | PENNSYLVANIA ELECTRIC CO |
| HOYTDALE | 345 kV | 7 | DUQUESNE LIGHT CO |
| MANSFIELD STATION | 345 kV | 8 | DUQUESNE LIGHT CO |
| SHENANGO | 345 kV | 9 | — |
| WAYNE | 345 kV | 4 | PENNSYLVANIA ELECTRIC CO |
| ALTOONA | 230 kV | 5 | PENNSYLVANIA ELECTRIC CO |
| BALA | 230 kV | 2 | PECO ENERGY CO |
| BARBADOES | 230 kV | 4 | PECO ENERGY CO |
| BETZWOOD | 230 kV | 2 | PECO ENERGY CO |
| BLOOMING GROVE | 230 kV | 5 | PPL ELECTRIC UTILITIES CORP |
| BRADFORD | 230 kV | 9 | PECO ENERGY CO |
| BRUNNER ISLAND | 230 kV | 9 | METROPOLITAN EDISON CO |
| BUCKINGHAM | 230 kV | 4 | PECO ENERGY CO |
| BUSHKILL | 230 kV | 3 | METROPOLITAN EDISON CO |
| BUXMONT | 230 kV | 8 | PECO ENERGY CO |
| BYBERRY | 230 kV | 4 | PECO ENERGY CO |
| CHAPMAN | 230 kV | 1 | PPL ELECTRIC UTILITIES CORP |
| CHICHESTER | 230 kV | 6 | PECO ENERGY CO |
| CLAY | 230 kV | 2 | PECO ENERGY CO |
| COLUMBIA | 230 kV | 5 | PPL ELECTRIC UTILITIES CORP |
| CONCORD | 230 kV | 3 | PECO ENERGY CO |
| CROMBY | 230 kV | 5 | PECO ENERGY CO |
| CROYDON | 230 kV | 4 | PECO ENERGY CO |
| DELCO TAP | 230 kV | 3 | PECO ENERGY CO |
| EDDINGTON | 230 kV | 2 | PECO ENERGY CO |
| EDDYSTONE | 230 kV | 9 | PECO ENERGY CO |
| ELIMSPORT | 230 kV | 6 | PPL ELECTRIC UTILITIES CORP |
| ELKO | 230 kV | 7 | WEST PENN POWER CO |
Every named substation in Pennsylvania
All 251 named substations, grouped by voltage band.
500 kV and above · 25
345–499 kV · 12
230–344 kV · 97
- ALTOONA
- BALA
- BARBADOES
- BETZWOOD
- BLOOMING GROVE
- BRADFORD
- BRUNNER ISLAND
- BUCKINGHAM
- BUSHKILL
- BUXMONT
- BYBERRY
- CHAPMAN
- CHICHESTER
- CLAY
- COLUMBIA
- CONCORD
- CROMBY
- CROYDON
- DELCO TAP
- EDDINGTON
- EDDYSTONE
- ELIMSPORT
- ELKO
- EMILIE
- FOREST
- FOULK
- FRACKVILLE
- GLADE
- GREYS FERRY
- GROVER
- HARTMAN
- HEATON
- HUMMELSTOWN
- ISLAND ROAD
- JARRETT
- JENKINS
- JENKINTOWN
- JOHNSTOWN
- LENAPE
- LEWIS RUN
- LEWISTOWN
- LIMERICK (230KV SUB)
- LINTON
- LINWOOD
- LYCOMING
- MARTINS CREEK
- MASTER
- MIDDLETOWN
- MIDDLETOWN JUNCTION
- MILESBURG
- MILLWOOD
- MONTOUR STATION
- MORTON
- MOSHANNON
- MUDDY RUN
- NEWLINVILLE
- NORTH BOYERTOWN
- NORTH MESHOPPEN
- NORTH PHILADELPHIA
- NORTH WALES
- NOTTINGHAM
- OTTER CREEK
- PARRISH
- PASSYUNK
- PECKVILLE
- PENROSE
- PERKIOMEN
- PLYMOUTH MEETING
- PORTLAND STATION
- PULASKI
- QUARRY
- RAYSTOWN
- RICHMOND
- SAFE HARBOR
- SCHUYLKILL
- SEWARD
- SHAWNEE
- SHAWVILLE STATION
- SHINGLETOWN
- SIEGFRIED
- SOUTH AKRON
- SOUTH MANHEIM
- SOUTH READING
- TABOR
- TRAINER
- TUNNEL
- UPPER PROVIDENCE
- WANEETA
- WARMINSTER
- WARRINGTON
- WAYNE
- WAYNE JUNCTION
- WEST HEMPFIELD
- WESTMORELAND
- WOODBOURNE
- YEAGERTOWN
- YORKANA
115–229 kV · 80
- ANTRIM
- BETHELBORO
- BLUEGRASS
- BRYN MAWR
- BURLE
- BUTLER
- CALLOWHILL
- CAMPBELL
- CARBON CENTER
- CARSON
- CHARLEROI
- CHESWICK
- CONNELLSVILLE
- CRESCENTVILLE
- DONEGAL
- DONERVILLE
- DONNELLEY
- DONNELLEY GRAVURE
- DORNYVILLE
- DRAVOSBURG
- EAST LANCASTER
- EAST WAYNESBORO
- ENGLESIDE
- FAYETTEVILLE
- FOX CHASE
- GOBAIN
- GRAND POINT
- GREENE
- GUILFORD
- HARWICK
- HIGHLAND
- HOUSEVILLE
- IRON BRIDGE
- KEISTER
- LANCASTER AIR PRODUCTS
- LEOLA
- LETTERKENNY
- LIONS ROAD
- LLANERCH
- LOGANS FERRY
- LUXOR
- MANIFOLD
- MCCONNELLSBURG
- MCDOWELL
- MIDLAND
- MIDLAND
- MON VALLEY WORKS ILLINOIS
- MONTOUR
- NECESSITY
- NESHAMINY
- NORTH
- PINE CREEK
- PLUM
- PRINCE
- RACCOON
- ROHRERSTOWN
- ROXBURY
- SAVILLE
- SOUTH WHITEHALL
- SUMNER
- TEXAS EASTERN
- TEXAS EASTERN 5
- TUNA
- UNIVERSAL
- VALLEY
- WARFORDSBURG
- WEST MIFFLIN
- WEST WAYNESBORO
- WESTRAVER
- WILDWOOD
- WILMERDING
- WOODVILLE
- YOUNGWOOD
- DUBOIS
- FACE ROCK
- FARMERS VALLEY
- GLENDON
- HOOVERSVILLE
- PHILIPSBURG
- ROUNDTOP
69–114 kV · 14
voltage not recorded · 23
- ALEXANDRIA SUBSTATION
- ALTOONA
- ARSENAL
- BEDFORD RURAL
- BELFAST
- BIG HOLLOW ROAD
- BOROUGH OF MIDDLETOWN MILL STREET
- CENTRAL CAMPUS SUBSTATION
- DORMONT SUBSTATION
- DRAVOSBURG
- FORBES
- FRANCONIA
- FRONT STREET SUBSTATION
- MCDOWELL
- OAKLAND
- ORCHARD ROAD
- PIERCE BROOK
- PINOLA SUB #09
- SALINE SUBSTATION
- SMITH
- SUB 72
- WATER STREET SUBSTATION
- WEST CAMPUS SUBSTATION
Frequently asked questions
How many electric substations are in Pennsylvania?
HIFLD records 2,109 substations in Pennsylvania, of which 251 carry a station name. That is the 18th-most named substations of any state in the dataset.
What is the highest-voltage substation in Pennsylvania?
25 named substations in Pennsylvania share the top voltage of 500 kV, including ALBURTIS, CABOT, CENTERPOINT.
Which substation in Pennsylvania connects the most transmission lines?
SIEGFRIED has the most connected transmission lines of the named substations listed here, with 21 at up to 230 kV.
How many substations in Pennsylvania are 345 kV or higher?
37 of 251 named substations (15%) operate at 345 kV or above, compared with 8% nationally. Pennsylvania ranks 10th of 50 states and DC for named substations at that level.
How many datacenter candidate sites in Pennsylvania are at substations?
886 of the 6,497 scored candidate sites in Pennsylvania are substation sites — locations generated at an existing substation. Scored sites across Pennsylvania average 52.1 on the 0–100 DC Readiness scale, against 53 nationally.
Looking for a specific record? The directory lists every substation in Pennsylvania, A to Z.
More on Pennsylvania, and states with similar counts
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, “Electric substations in Pennsylvania”, https://gridcensus.com/substations/pennsylvania (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for substations in 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.