massoutage

County annual report · FIPS 42091

2024 Montgomery County, PA Power Outage Report

In 2024, customers in Montgomery County, PA went without power for an average of 6.6 hours, a total of 1.5M customer-hours (Pennsylvania average 7.0 hours). That ranks 33rd worst of 67 Pennsylvania counties and 1316th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
6.6
224,080 customers
Customer-hours out
1.5M
Peak customers out
25,461
Outages ≥1,000 out
18
2 of 10,000+ · 68 total
Longest outage
95d 6h
began July 3, 2024
Rank in state
33rd/67
1316th of 2,990 US

Compared with PA, the US and 2023

Montgomery County, PA average hours without power per customer compared with state and national averages, 2024Montgomery County 6.6 hours, Pennsylvania average 7.0 hours, US average 12.6 hours, Montgomery County, 2023 3.7 hoursMontgomery CountyMontgomery County6.6hPennsylvania averagePennsylvania average7.0hUS averageUS average12.6hMontgomery County, 2023Montgomery County, 2…3.7h
Use the arrow keys to read values.
Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Montgomery County, PA customer-hours without power by month, 2024Jan 229K, Feb 74K, Mar 77K, Apr 134K, May 41K, Jun 121K, Jul 350K, Aug 170K, Sep 69K, Oct 51K, Nov 62K, Dec 100K0100k200k300k400k229KJan74KFeb77KMar134KApr41KMay121KJun350KJul170KAug69KSep51KOct62KNov100KDec
Use the arrow keys to read values.
Customer-hours; July was the worst month.

Montgomery County year over year

CSVJSON
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
Use the arrow keys to read values.
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, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 3, 2024 11:30October 6, 2024 17:4595d 6h25,461593K
2January 6, 2024 12:45February 7, 2024 21:1532d 8h13,755233K
3March 19, 2024 11:45April 7, 2024 22:1519d 10h9,126131K
4May 31, 2024 04:45July 3, 2024 10:3033d 5h8,631127K
5April 11, 2024 03:15April 19, 2024 23:158d 20h6,87626K
6November 18, 2024 04:15December 19, 2024 12:3031d 8h6,086104K
7December 20, 2024 13:15January 1, 2025 00:0011d 10h3,52321K
8February 27, 2024 13:45March 6, 2024 04:007d 14h3,43738K
9October 27, 2024 22:15November 12, 2024 03:0015d 4h2,59038K
10April 20, 2024 11:00May 5, 2024 10:3014d 23h2,35820K

Outage episodes by size in 2024: 39 reached 100+ customers, 18 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 Montgomery County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
FirstEnergy Pennsylvania Electric Co20246.7 hrs1.853.7 hrs1.49
PPL Electric Utilities Corp20247.6 hrs1.251.5 hrs0.66
Metropolitan Edison Co20237.1 hrs1.463.5 hrs1.24
PECO Energy Co20243.5 hrs0.9760 min0.67
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 n/a of Pennsylvania's customers in 2024; 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, 2024, 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/2024/pennsylvania/montgomery-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON