massoutage

County annual report · FIPS 42091

2019 Montgomery County, PA Power Outage Report

In 2019, customers in Montgomery County, PA went without power for an average of 9.0 hours, a total of 2.0M customer-hours (Pennsylvania average 4.7 hours). That ranks 13th worst of 67 Pennsylvania counties and 613th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
9.0
224,080 customers
Customer-hours out
2.0M
Peak customers out
43,192
Outages ≥1,000 out
49
3 of 10,000+ · 238 total
Longest outage
15d 9h
began April 22, 2019
Rank in state
13th/67
613th of 2,945 US

Compared with PA, the US and 2018

Montgomery County, PA average hours without power per customer compared with state and national averages, 2019Montgomery County 9.0 hours, Pennsylvania average 4.7 hours, US average 4.7 hours, Montgomery County, 2018 26.1 hoursMontgomery CountyMontgomery County9.0hPennsylvania averagePennsylvania average4.7hUS averageUS average4.7hMontgomery County, 2018Montgomery County, 2…26.1h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Montgomery County, PA customer-hours without power by month, 2019Jan 45K, Feb 146K, Mar 48K, Apr 76K, May 363K, Jun 132K, Jul 144K, Aug 89K, Sep 41K, Oct 62K, Nov 820K, Dec 54K0250k500k750k1M45KJan146KFeb48KMar76KApr363KMay132KJun144KJul89KAug41KSep62KOct820KNov54KDec
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Customer-hours; November was the worst month.

Montgomery County year over year

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Montgomery County, PA: average hours without power per customer by year2015: 4.3h; 2016: 4.6h; 2017: 3.4h; 2018: 26.1h, coverage 95%; 2019: 9.0h, coverage 96%; 2020: 28.9h, coverage 98%; 2021: 12.8h, coverage 98%; 2022: 3.8h, coverage 98%; 2023: 3.7h; 2024: 6.6h; 2025: 15.6h01020300%50%100%4.3h20154.6h20163.4h201726.1h20189.0h201928.9h202012.8h20213.8h20223.7h20236.6h202415.6h2025
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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 Montgomery County, 2019

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
1October 31, 2019 05:15November 7, 2019 03:306d 22h43,192778K
2May 29, 2019 03:15June 8, 2019 08:1510d 5h15,691349K
3February 24, 2019 02:45February 28, 2019 11:454d 9h10,183114K
4June 28, 2019 11:30July 8, 2019 02:159d 14h7,11473K
5August 14, 2019 10:45August 21, 2019 06:156d 19h6,56925K
6July 8, 2019 04:00July 14, 2019 06:456d 2h4,90239K
7July 14, 2019 11:15July 26, 2019 09:4511d 22h4,56974K
8April 22, 2019 10:45May 7, 2019 20:1515d 9h4,52746K
9March 30, 2019 08:45April 1, 2019 01:301d 16h3,9694,656
10February 10, 2019 21:45February 15, 2019 11:154d 13h3,8139,351

Outage episodes by size in 2019: 122 reached 100+ customers, 49 reached 1,000+ customers, 3 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 Montgomery County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PPL Electric Utilities Corp20186.6 hrs1.0581 min0.73
Metropolitan Edison Co201822.6 hrs2.002.7 hrs1.22
PECO Energy Co201810.7 hrs1.5188 min0.90
FirstEnergy Pennsylvania Electric Co-----
Borough of Hatfield- (PA)-----
Borough of Lansdale-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 96% of Pennsylvania's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 224,080 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. Montgomery County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Montgomery County, PA annual power outage report, 2019, 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/2019/pennsylvania/montgomery-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON