County annual report · FIPS 42003
2020 Allegheny County, PA Power Outage Report
In 2020, customers in Allegheny County, PA went without power for an average of 2.9 hours, a total of 1.9M customer-hours (Pennsylvania average 6.5 hours). That ranks 49th worst of 67 Pennsylvania counties and 1927th of 3,019 nationally.
Compared with PA, the US and 2019
Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.
Biggest outages in Allegheny County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 27, 2020 12:45 | August 31, 2020 06:15 | 3d 17h | 31,345 | 353K |
| 2 | April 8, 2020 05:15 | April 11, 2020 20:00 | 3d 14h | 29,006 | 469K |
| 3 | November 15, 2020 18:15 | November 19, 2020 03:45 | 3d 9h | 23,118 | 201K |
| 4 | July 9, 2020 12:00 | July 14, 2020 06:45 | 4d 18h | 15,390 | 88K |
| 5 | March 28, 2020 15:15 | March 31, 2020 07:00 | 2d 15h | 12,346 | 57K |
| 6 | June 10, 2020 14:15 | June 13, 2020 04:00 | 2d 13h | 12,121 | 108K |
| 7 | January 11, 2020 13:00 | January 13, 2020 01:45 | 1d 12h | 5,401 | 22K |
| 8 | July 3, 2020 18:00 | July 9, 2020 10:00 | 5d 16h | 4,734 | 66K |
| 9 | August 22, 2020 22:00 | August 25, 2020 05:30 | 2d 7h | 4,682 | 38K |
| 10 | August 19, 2020 11:00 | August 20, 2020 00:15 | 13h 15m | 3,527 | 5,477 |
Outage episodes by size in 2020: 262 reached 100+ customers, 58 reached 1,000+ customers, 6 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 2020, 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 |
|---|---|---|---|---|---|
| West Penn Power Company | 2020 | 4.3 hrs | 1.27 | 2.7 hrs | 1.07 |
| Pennsylvania Power Co | 2020 | 3.0 hrs | 0.98 | 1.6 hrs | 0.79 |
| FirstEnergy Pennsylvania Electric Co | - | - | - | - | - |
| 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 98% of Pennsylvania's customers in 2020; 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, 2020, 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/2020/pennsylvania/allegheny-county