County annual report · FIPS 42003
2024 Allegheny County, PA Power Outage Report
In 2024, customers in Allegheny County, PA went without power for an average of 6.4 hours, a total of 4.3M customer-hours (Pennsylvania average 7.0 hours). That ranks 35th worst of 67 Pennsylvania counties and 1349th of 2,990 nationally.
Compared with PA, the US and 2023
Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.
Biggest outages in Allegheny County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 17, 2024 01:00 | June 25, 2024 21:30 | 8d 20h | 84,962 | 1.1M |
| 2 | December 29, 2024 11:30 | January 1, 2025 00:00 | 2d 12h | 55,570 | 808K |
| 3 | November 20, 2024 21:30 | November 22, 2024 23:00 | 2d 1h | 26,040 | 175K |
| 4 | July 9, 2024 11:00 | July 13, 2024 07:00 | 3d 20h | 22,065 | 150K |
| 5 | December 5, 2024 01:45 | December 6, 2024 01:30 | 23h 45m | 19,762 | 76K |
| 6 | October 15, 2024 13:45 | October 16, 2024 02:00 | 12h 15m | 15,059 | 15K |
| 7 | April 17, 2024 13:15 | April 20, 2024 00:30 | 2d 11h | 13,925 | 86K |
| 8 | August 6, 2024 13:15 | August 8, 2024 00:30 | 1d 11h | 12,280 | 36K |
| 9 | August 17, 2024 12:30 | August 20, 2024 04:30 | 2d 16h | 9,504 | 83K |
| 10 | July 19, 2024 15:00 | July 20, 2024 08:30 | 17h 30m | 9,200 | 31K |
Outage episodes by size in 2024: 234 reached 100+ customers, 114 reached 1,000+ customers, 8 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 2024, 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 2024; 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, 2024, 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/2024/pennsylvania/allegheny-county