massoutage

County annual report · FIPS 42019

2023 Butler County, PA Power Outage Report

In 2023, customers in Butler County, PA went without power for an average of 9.9 hours, a total of 900K customer-hours (Pennsylvania average 4.9 hours). That ranks 17th worst of 67 Pennsylvania counties and 852nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
9.9
91,173 customers
Customer-hours out
900K
Peak customers out
24,378
Outages ≥1,000 out
22
2 of 10,000+ · 786 total
Longest outage
6d 6h
began March 25, 2023
Rank in state
17th/67
852nd of 2,977 US

Compared with PA, the US and 2022

Butler County, PA average hours without power per customer compared with state and national averages, 2023Butler County 9.9 hours, Pennsylvania average 4.9 hours, US average 7.1 hours, Butler County, 2022 4.4 hoursButler CountyButler County9.9hPennsylvania averagePennsylvania average4.9hUS averageUS average7.1hButler County, 2022Butler County, 20224.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Butler County, PA customer-hours without power by month, 2023Jan 14K, Feb 8,725, Mar 238K, Apr 479K, May 5,554, Jun 22K, Jul 26K, Aug 23K, Sep 26K, Oct 33K, Nov 12K, Dec 13K0200k400k600k14KJan8,725Feb238KMar479KApr5,554May22KJun26KJul23KAug26KSep33KOct12KNov13KDec
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Customer-hours; April was the worst month.

Butler County year over year

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Butler County, PA: average hours without power per customer by year2015: 2.6h; 2016: 1.9h; 2017: 3.7h; 2018: 21.4h, coverage 95%; 2019: 5.0h, coverage 96%; 2020: 5.6h, coverage 98%; 2021: 4.2h, coverage 98%; 2022: 4.4h, coverage 98%; 2023: 9.9h; 2024: 6.8h; 2025: 7.5h01020300%50%100%2.6h20151.9h20163.7h201721.4h20185.0h20195.6h20204.2h20214.4h20229.9h20236.8h20247.5h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.

Biggest outages in Butler County, 2023

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 1, 2023 16:45April 7, 2023 06:155d 13h24,378471K
2March 25, 2023 11:00March 31, 2023 17:006d 6h12,046229K
3September 20, 2023 12:15September 21, 2023 03:1515h8,55614K
4October 16, 2023 08:30October 16, 2023 08:4515m5,2071,302
5July 29, 2023 09:15July 29, 2023 10:301h 15m3,7183,312
6October 21, 2023 12:00October 21, 2023 16:454h 45m3,2602,492
7October 14, 2023 10:30October 14, 2023 15:004h 30m3,2323,093
8July 17, 2023 05:30July 18, 2023 17:001d 11h3,1249,127
9December 3, 2023 08:45December 4, 2023 00:1515h 30m2,3849,733
10April 28, 2023 17:15April 29, 2023 02:459h 30m2,323993

Outage episodes by size in 2023: 123 reached 100+ customers, 22 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 Butler County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
West Penn Power Company20237.0 hrs1.412.7 hrs1.03
Pennsylvania Power Co202311.8 hrs1.512.0 hrs0.86
FirstEnergy Pennsylvania Electric Co-----
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 2023; 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, 2023, 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/2023/pennsylvania/butler-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON