County annual report · FIPS 42003
2025 Allegheny County, PA Power Outage Report
In 2025, customers in Allegheny County, PA went without power for an average of 24.6 hours, a total of 16.4M customer-hours (Pennsylvania average 9.8 hours). That ranks 6th worst of 67 Pennsylvania counties and 253rd of 3,000 nationally.
Compared with PA, the US and 2024
Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.
Biggest outages in Allegheny County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 29, 2025 09:45 | May 11, 2025 03:30 | 11d 17h | 270,977 | 14.4M |
| 2 | July 12, 2025 07:45 | July 21, 2025 03:30 | 8d 19h | 17,265 | 136K |
| 3 | March 16, 2025 00:30 | March 19, 2025 03:45 | 3d 3h | 13,911 | 106K |
| 4 | December 29, 2025 08:30 | December 31, 2025 01:00 | 1d 16h | 11,573 | 77K |
| 5 | May 11, 2025 18:30 | May 15, 2025 03:45 | 3d 9h | 9,518 | 70K |
| 6 | May 30, 2025 16:00 | June 4, 2025 01:00 | 4d 9h | 8,005 | 37K |
| 7 | June 17, 2025 13:00 | June 30, 2025 05:15 | 12d 16h | 7,924 | 249K |
| 8 | August 13, 2025 05:30 | August 14, 2025 22:00 | 1d 16h | 7,174 | 40K |
| 9 | December 19, 2025 08:00 | December 21, 2025 06:00 | 1d 22h | 6,981 | 53K |
| 10 | May 15, 2025 05:30 | May 19, 2025 04:30 | 3d 23h | 6,727 | 39K |
Outage episodes by size in 2025: 267 reached 100+ customers, 138 reached 1,000+ customers, 4 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Allegheny County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| FirstEnergy Pennsylvania Electric Co | 2024 | 6.7 hrs | 1.85 | 3.7 hrs | 1.49 |
| West Penn Power Company | 2023 | 7.0 hrs | 1.41 | 2.7 hrs | 1.03 |
| Pennsylvania Power Co | 2023 | 11.8 hrs | 1.51 | 2.0 hrs | 0.86 |
| Central Electric Coop, Inc - (PA) | - | - | - | - | - |
| Duquesne Light Co | - | - | - | - | - |
| Borough of Pitcairn - (PA) | - | - | - | - | - |
| Borough of Tarentum - (PA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Pennsylvania's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 667,166 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Allegheny County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Allegheny County, PA annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/pennsylvania/allegheny-county