massoutage

County annual report · FIPS 42085

2018 Mercer County, PA Power Outage Report

In 2018, customers in Mercer County, PA went without power for an average of 4.6 hours, a total of 222K customer-hours (Pennsylvania average 8.3 hours). That ranks 38th worst of 67 Pennsylvania counties and 1123rd of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
4.6
48,402 customers
Customer-hours out
222K
Peak customers out
24,869
Outages ≥1,000 out
20
1 of 10,000+ · 719 total
Longest outage
3d 11h
began November 15, 2018
Rank in state
38th/67
1123rd of 2,798 US

Compared with PA, the US and 2017

Mercer County, PA average hours without power per customer compared with state and national averages, 2018Mercer County 4.6 hours, Pennsylvania average 8.3 hours, US average 5.6 hours, Mercer County, 2017 6.7 hoursMercer CountyMercer County4.6hPennsylvania averagePennsylvania average8.3hUS averageUS average5.6hMercer County, 2017Mercer County, 20176.7h
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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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Mercer County, PA customer-hours without power by month, 2018Jan 5,771, Feb 6,011, Mar 34K, Apr 12K, May 20K, Jun 48K, Jul 19K, Aug 16K, Sep 19K, Oct 6,832, Nov 32K, Dec 3,875020k40k60k5,771Jan6,011Feb34KMar12KApr20KMay48KJun19KJul16KAug19KSep6,832Oct32KNov3,875Dec
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Customer-hours; June was the worst month.

Mercer County year over year

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Mercer County, PA: average hours without power per customer by year2015: 3.5h; 2016: 3.4h; 2017: 6.7h; 2018: 4.6h, coverage 95%; 2019: 6.2h, coverage 96%; 2020: 3.5h, coverage 98%; 2021: 3.9h, coverage 98%; 2022: 7.6h, coverage 98%; 2023: 23.4h; 2024: 6.6h; 2025: 3.7h01020300%50%100%3.5h20153.4h20166.7h20174.6h20186.2h20193.5h20203.9h20217.6h202223.4h20236.6h20243.7h2025
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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 Mercer County, 2018

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
1June 23, 2018 11:45June 24, 2018 11:3023h 45m24,86925K
2September 9, 2018 20:30September 11, 2018 07:451d 11h7,79412K
3March 2, 2018 03:45March 4, 2018 07:452d 4h5,89731K
4November 15, 2018 23:30November 19, 2018 11:153d 11h4,56527K
5June 13, 2018 11:15June 14, 2018 08:1521h4,2918,246
6October 15, 2018 18:15October 16, 2018 05:0010h 45m3,2073,142
7April 26, 2018 18:00April 27, 2018 03:159h 15m2,453905
8July 18, 2018 12:45July 18, 2018 22:159h 30m2,1091,650
9August 13, 2018 18:15August 14, 2018 06:4512h 30m2,1092,166
10April 1, 2018 10:15April 2, 2018 00:0013h 45m2,1002,767

Outage episodes by size in 2018: 91 reached 100+ customers, 20 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 Mercer County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pennsylvania Power Co20187.3 hrs1.562.2 hrs1.22
FirstEnergy Pennsylvania Electric Co-----
Central Electric Coop, Inc - (PA)-----
Northwestern Rural E C A, Inc - (PA)-----
Borough of Grove City - (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 95% of Pennsylvania's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 48,402 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. Mercer County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Mercer 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/mercer-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON