County annual report · FIPS 42019
2025 Butler County, PA Power Outage Report
In 2025, customers in Butler County, PA went without power for an average of 7.5 hours, a total of 684K customer-hours (Pennsylvania average 9.8 hours). That ranks 34th worst of 67 Pennsylvania counties and 1081st 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 Butler 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 12:30 | May 6, 2025 16:45 | 7d 4h | 15,747 | 323K |
| 2 | December 15, 2025 08:45 | December 15, 2025 19:30 | 10h 45m | 8,635 | 34K |
| 3 | June 18, 2025 16:45 | June 21, 2025 22:15 | 3d 5h | 5,248 | 13K |
| 4 | April 19, 2025 15:15 | April 21, 2025 01:00 | 1d 9h | 4,300 | 18K |
| 5 | October 7, 2025 11:15 | October 7, 2025 16:30 | 5h 15m | 3,344 | 4,837 |
| 6 | July 28, 2025 22:15 | July 29, 2025 08:30 | 10h 15m | 3,185 | 3,078 |
| 7 | March 2, 2025 04:45 | March 2, 2025 10:30 | 5h 45m | 2,954 | 16K |
| 8 | March 21, 2025 23:45 | March 22, 2025 02:45 | 3h | 2,800 | 3,512 |
| 9 | March 24, 2025 17:30 | March 25, 2025 19:15 | 1d 1h | 2,477 | 8,819 |
| 10 | May 17, 2025 13:00 | May 18, 2025 23:45 | 1d 10h | 2,262 | 11K |
Outage episodes by size in 2025: 148 reached 100+ customers, 34 reached 1,000+ customers, 1 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 Butler 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) | - | - | - | - | - |
| Borough of Zelienople - (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 ÷ 91,173 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. Butler County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Butler 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/butler-county