ALTOONA
SubstationPennsylvania · PENNSYLVANIA ELECTRIC CO
At a glance
ALTOONA is an electric transmission substation in Pennsylvania, on PENNSYLVANIA ELECTRIC CO's transmission network. It is classified as unclassified and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #156936 | — | PENNSYLVANIA ELECTRIC CO | IN SERVICE | 4.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ALTOONA, 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 |
|---|---|---|---|---|---|---|---|
| RAYSTOWN | Substation-Adjacent | PA | Huntingdon County | 230 kV | 300 MW | 3.6 yrs | 59.0 |
| EC Coal Blair County | Greenfield | PA | Blair County | — | — | 3.6 yrs | 58.4 |
| EC Coal Centre County | Greenfield | PA | Centre County | — | — | 3.6 yrs | 58.4 |
| ALTOONA | Substation-Adjacent | PA | Blair County | 230 kV | 300 MW | 3.6 yrs | 58.3 |
| UNKNOWN123838 | Substation-Adjacent | PA | Cambria County | 230 kV | 300 MW | 3.6 yrs | 57.5 |
| EC Near Juniata Locomotive Shop | Greenfield | PA | Blair | — | — | 3.6 yrs | 57.4 |
| EC Coal Clearfield County | Greenfield | PA | Clearfield County | — | — | 3.6 yrs | 57.0 |
| EC Coal Cambria County | Greenfield | PA | Cambria County | — | — | 3.6 yrs | 56.6 |
Who owns the transmission lines at ALTOONA?
The 1 connected line listed above is owned by PENNSYLVANIA ELECTRIC CO. Their combined recorded length is about 4.6 miles.
How do candidate sites near ALTOONA score?
The 8 highest-scoring candidate sites within about 25 miles range from 57 to 59 on the 0–100 DC Readiness scale. They fall in Huntingdon County, Blair County, Centre County, Cambria 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
How many transmission lines connect to ALTOONA substation?
1 transmission line terminate at or pass through ALTOONA in the HIFLD line data. Together the listed lines cover about 4.6 miles.
Who owns ALTOONA substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at ALTOONA belong to PENNSYLVANIA ELECTRIC CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is ALTOONA substation located?
ALTOONA is in Pennsylvania at 40.5028, -78.3872. The datacenter candidate sites closest to it are in Huntingdon County, Blair County, Centre County.
Are there datacenter candidate sites near ALTOONA substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of ALTOONA. The highest-scoring is RAYSTOWN at 59/100. 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, “ALTOONA substation, Pennsylvania”, https://gridcensus.com/substations/pennsylvania/altoona-ed228047 (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 ALTOONA 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.