massoutage

County annual report · FIPS 42129

2018 Westmoreland County, PA Power Outage Report

In 2018, customers in Westmoreland County, PA went without power for an average of 3.6 hours, a total of 674K customer-hours (Pennsylvania average 8.3 hours). That ranks 50th worst of 67 Pennsylvania counties and 1346th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
3.6
188,408 customers
Customer-hours out
674K
Peak customers out
7,058
Outages ≥1,000 out
51
0 of 10,000+ · 643 total
Longest outage
6d 4h
began November 15, 2018
Rank in state
50th/67
1346th of 2,798 US

Compared with PA, the US and 2017

Westmoreland County, PA average hours without power per customer compared with state and national averages, 2018Westmoreland County 3.6 hours, Pennsylvania average 8.3 hours, US average 5.6 hours, Westmoreland County, 2017 3.7 hoursWestmoreland CountyWestmoreland County3.6hPennsylvania averagePennsylvania average8.3hUS averageUS average5.6hWestmoreland County, 2017Westmoreland County,…3.7h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Westmoreland County, PA customer-hours without power by month, 2018Jan 48K, Feb 33K, Mar 35K, Apr 55K, May 29K, Jun 62K, Jul 62K, Aug 46K, Sep 142K, Oct 75K, Nov 79K, Dec 7,963050k100k150k48KJan33KFeb35KMar55KApr29KMay62KJun62KJul46KAug142KSep75KOct79KNov7,963Dec
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Customer-hours; September was the worst month.

Westmoreland County year over year

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Westmoreland County, PA: average hours without power per customer by year2015: 3.0h; 2016: 2.7h; 2017: 3.7h; 2018: 3.6h, coverage 95%; 2019: 7.3h, coverage 96%; 2020: 3.7h, coverage 98%; 2021: 3.0h, coverage 98%; 2022: 5.6h, coverage 98%; 2023: 5.7h; 2024: 5.4h; 2025: 14.7h0510150%50%100%3.0h20152.7h20163.7h20173.6h20187.3h20193.7h20203.0h20215.6h20225.7h20235.4h202414.7h2025
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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 Westmoreland County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 8, 2018 04:30September 13, 2018 05:155d7,058117K
2April 4, 2018 00:15April 5, 2018 23:301d 23h4,85527K
3October 10, 2018 10:30October 10, 2018 21:3011h4,5393,651
4October 12, 2018 21:00October 12, 2018 22:451h 45m4,4752,241
5October 5, 2018 23:15October 8, 2018 04:452d 5h3,62640K
6November 15, 2018 15:00November 21, 2018 19:006d 4h3,26860K
7July 1, 2018 09:30July 6, 2018 03:454d 18h3,12023K
8March 2, 2018 02:15March 5, 2018 01:152d 23h2,85623K
9February 15, 2018 22:00February 18, 2018 21:152d 23h2,8205,223
10January 13, 2018 07:30January 14, 2018 08:451d 1h2,49224K

Outage episodes by size in 2018: 174 reached 100+ customers, 51 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pennsylvania Electric Co20184.8 hrs2.123.6 hrs1.86
West Penn Power Company20186.7 hrs1.442.8 hrs1.15
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 95% of Pennsylvania's customers in 2018; 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, 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/westmoreland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON