massoutage

County annual report · FIPS 42019

2020 Butler County, PA Power Outage Report

In 2020, customers in Butler County, PA went without power for an average of 5.6 hours, a total of 512K customer-hours (Pennsylvania average 6.5 hours). That ranks 26th worst of 67 Pennsylvania counties and 1303rd of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
5.6
91,173 customers
Customer-hours out
512K
Peak customers out
11,031
Outages ≥1,000 out
22
1 of 10,000+ · 847 total
Longest outage
3d 13h
began November 15, 2020
Rank in state
26th/67
1303rd of 3,019 US

Compared with PA, the US and 2019

Butler County, PA average hours without power per customer compared with state and national averages, 2020Butler County 5.6 hours, Pennsylvania average 6.5 hours, US average 8.7 hours, Butler County, 2019 5.0 hoursButler CountyButler County5.6hPennsylvania averagePennsylvania average6.5hUS averageUS average8.7hButler County, 2019Butler County, 20195.0h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Butler County, PA customer-hours without power by month, 2020Jan 25K, Feb 4,606, Mar 31K, Apr 24K, May 25K, Jun 29K, Jul 34K, Aug 189K, Sep 7,500, Oct 14K, Nov 122K, Dec 5,805050k100k150k200k25KJan4,606Feb31KMar24KApr25KMay29KJun34KJul189KAug7,500Sep14KOct122KNov5,805Dec
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Customer-hours; August 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, 2020

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 27, 2020 21:15August 31, 2020 04:153d 7h11,031165K
2November 15, 2020 19:15November 19, 2020 09:003d 13h8,049114K
3March 29, 2020 16:15March 30, 2020 22:151d 6h4,71312K
4October 5, 2020 01:45October 5, 2020 10:008h 15m4,2389,920
5July 16, 2020 12:15July 17, 2020 10:1522h3,7747,994
6August 25, 2020 11:00August 27, 2020 14:302d 3h2,89817K
7January 12, 2020 05:15January 13, 2020 21:151d 16h2,89316K
8June 10, 2020 18:15June 13, 2020 04:452d 10h2,88819K
9May 29, 2020 14:30May 30, 2020 07:3017h2,8099,417
10April 8, 2020 05:00April 10, 2020 11:002d 6h2,55415K

Outage episodes by size in 2020: 95 reached 100+ customers, 22 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 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
West Penn Power Company20204.3 hrs1.272.7 hrs1.07
Pennsylvania Power Co20203.0 hrs0.981.6 hrs0.79
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 98% of Pennsylvania's customers in 2020; 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, 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/butler-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON