County annual report · FIPS 42003
2018 Allegheny County, PA Power Outage Report
In 2018, customers in Allegheny County, PA went without power for an average of 3.2 hours, a total of 2.1M customer-hours (Pennsylvania average 8.3 hours). That ranks 55th worst of 67 Pennsylvania counties and 1457th of 2,798 nationally.
Compared with PA, the US and 2017
Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.
Biggest outages in Allegheny County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 15, 2018 13:30 | November 21, 2018 06:30 | 5d 17h | 29,490 | 633K |
| 2 | June 30, 2018 19:15 | July 9, 2018 02:15 | 8d 7h | 20,647 | 300K |
| 3 | September 8, 2018 07:45 | September 13, 2018 00:45 | 4d 17h | 9,298 | 94K |
| 4 | July 15, 2018 09:00 | July 17, 2018 08:15 | 1d 23h | 7,554 | 58K |
| 5 | June 17, 2018 00:45 | June 26, 2018 09:45 | 9d 9h | 7,460 | 123K |
| 6 | April 4, 2018 00:45 | April 6, 2018 05:45 | 2d 5h | 6,860 | 52K |
| 7 | October 28, 2018 23:15 | October 30, 2018 10:15 | 1d 11h | 5,988 | 7,604 |
| 8 | February 7, 2018 12:30 | February 8, 2018 05:30 | 17h | 4,889 | 15K |
| 9 | September 21, 2018 14:15 | September 23, 2018 06:45 | 1d 16h | 4,558 | 23K |
| 10 | October 8, 2018 04:45 | October 11, 2018 02:30 | 2d 21h | 4,480 | 15K |
Outage episodes by size in 2018: 256 reached 100+ customers, 75 reached 1,000+ customers, 2 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 2018, 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 | 2018 | 6.7 hrs | 1.44 | 2.8 hrs | 1.15 |
| Pennsylvania Power Co | 2018 | 7.3 hrs | 1.56 | 2.2 hrs | 1.22 |
| 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 95% of Pennsylvania's customers in 2018; 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, 2018, 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/2018/pennsylvania/allegheny-county