ANTRIM
SubstationPennsylvania · WEST PENN POWER CO
At a glance
ANTRIM is an electric transmission substation in Pennsylvania, on WEST PENN POWER CO's transmission network. It is classified as sub-transmission (138 kv) and connects 2 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 |
|---|---|---|---|---|
| #135962 | 138 kV | — | IN SERVICE | 5.2 mi |
| #136638 | 138 kV | WEST PENN POWER CO | IN SERVICE | 7.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ANTRIM, 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 |
|---|---|---|---|---|---|---|---|
| BEDINGTON | Substation-Adjacent | WV | Berkeley County | 500 kV | 1,000 MW | 3.0 yrs | 66.3 |
| Forty West Landfill | Brownfield | MD | Washington | — | 2 MW | 5.3 yrs | 62.8 |
| Frederick County Landfill Solar | Brownfield | MD | Frederick | — | 2 MW | 5.3 yrs | 62.3 |
| OZ Berkeley | Greenfield | WV | Berkeley | — | — | 3.0 yrs | 61.2 |
| OZ Berkeley | Greenfield | WV | Berkeley | — | — | 3.0 yrs | 60.2 |
| FREDERICK | Substation-Adjacent | MD | Frederick County | 230 kV | 300 MW | 5.3 yrs | 60.2 |
| MCCAIN | Substation-Adjacent | MD | Frederick County | 230 kV | 300 MW | 5.3 yrs | 60.2 |
| UNKNOWN122882 | Substation-Adjacent | MD | Washington County | 230 kV | 300 MW | 5.3 yrs | 59.9 |
How does ANTRIM compare with other substations in Pennsylvania?
Pennsylvania has 2,109 substation records in HIFLD, of which 251 carry a station name; the rest are unnamed tap points, risers and line ends. 80 named substations in the state are in ANTRIM's 115–229 kV band (32% of named stations). 134 sit in a higher band. 37 named substations in Pennsylvania operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 230 kV.
Who owns the transmission lines at ANTRIM?
The 2 connected lines listed above are owned by WEST PENN POWER CO. Line voltages range from 138 kV to 138 kV. Their combined recorded length is about 12.9 miles.
How do candidate sites near ANTRIM score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 66 on the 0–100 DC Readiness scale. They fall in Berkeley County, Washington, Frederick, Berkeley. 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 ANTRIM substation?
ANTRIM 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 ANTRIM is above the national midpoint.
How many transmission lines connect to ANTRIM substation?
2 transmission lines terminate at or pass through ANTRIM in the HIFLD line data. The connected lines listed here run at 138 kV. Together the listed lines cover about 12.9 miles.
Who owns ANTRIM substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at ANTRIM belong to WEST PENN POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is ANTRIM substation located?
ANTRIM is in Pennsylvania at 39.7781, -77.7067. The datacenter candidate sites closest to it are in Berkeley County, Washington, Frederick.
Are there datacenter candidate sites near ANTRIM substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of ANTRIM. The highest-scoring is BEDINGTON at 66/100. Across Pennsylvania, the average DC Readiness score is 51.8.
Other 138 kV substations in Pennsylvania
- DRAVOSBURG· 16 lines
- CHARLEROI· 11 lines
- CHESWICK· 10 lines
- WILMERDING· 8 lines
- LOGANS FERRY· 7 lines
- NORTH· 7 lines
- BUTLER· 6 lines
- ENGLESIDE· 6 lines
- All named substations in Pennsylvania· 251 stations
- Datacenter candidate sites in Pennsylvania· 6,497 sites
- Brownfield and retired plant sites in Pennsylvania
- Substations by state
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, “ANTRIM substation, Pennsylvania”, https://gridcensus.com/substations/pennsylvania/antrim-0eedbdb6 (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 ANTRIM 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.