County annual report · FIPS 42129
2021 Westmoreland County, PA Power Outage Report
In 2021, customers in Westmoreland County, PA went without power for an average of 3.0 hours, a total of 574K customer-hours (Pennsylvania average 4.1 hours). That ranks 51st worst of 67 Pennsylvania counties and 1822nd of 2,974 nationally.
Compared with PA, the US and 2020
Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.
Biggest outages in Westmoreland County, 2021
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 11, 2021 13:30 | August 15, 2021 21:30 | 4d 8h | 9,474 | 73K |
| 2 | December 11, 2021 16:00 | December 13, 2021 20:00 | 2d 4h | 9,152 | 57K |
| 3 | June 13, 2021 02:00 | June 16, 2021 18:45 | 3d 16h | 5,873 | 35K |
| 4 | May 26, 2021 07:00 | May 28, 2021 06:15 | 1d 23h | 3,978 | 18K |
| 5 | June 21, 2021 01:15 | June 23, 2021 22:45 | 2d 21h | 3,381 | 21K |
| 6 | September 11, 2021 04:00 | September 12, 2021 20:30 | 1d 16h | 3,330 | 2,873 |
| 7 | September 10, 2021 12:30 | September 10, 2021 21:30 | 9h | 3,329 | 2,625 |
| 8 | June 30, 2021 05:15 | July 3, 2021 15:30 | 3d 10h | 2,961 | 16K |
| 9 | September 22, 2021 02:00 | September 23, 2021 23:30 | 1d 21h | 2,908 | 15K |
| 10 | March 26, 2021 07:15 | March 27, 2021 22:00 | 1d 14h | 2,669 | 14K |
Outage episodes by size in 2021: 179 reached 100+ customers, 55 reached 1,000+ customers, 0 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 Westmoreland County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Pennsylvania Electric Co | 2021 | 5.9 hrs | 2.17 | 4.2 hrs | 1.81 |
| West Penn Power Company | 2021 | 4.2 hrs | 1.39 | 2.5 hrs | 1.07 |
| FirstEnergy Pennsylvania Electric Co | - | - | - | - | - |
| REA Energy Coop Inc | - | - | - | - | - |
| Somerset Rural Elec Coop, Inc | - | - | - | - | - |
| Duquesne Light Co | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 188,408 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. Westmoreland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Westmoreland County, PA annual power outage report, 2021, 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/2021/pennsylvania/westmoreland-county