massoutage

County annual report · FIPS 42045

2023 Delaware County, PA Power Outage Report

In 2023, customers in Delaware County, PA went without power for an average of 2.9 hours, a total of 814K customer-hours (Pennsylvania average 4.9 hours). That ranks 57th worst of 67 Pennsylvania counties and 1976th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
2.9
277,130 customers
Customer-hours out
814K
Peak customers out
22,144
Outages ≥1,000 out
36
2 of 10,000+ · 427 total
Longest outage
13d 6h
began July 3, 2023
Rank in state
57th/67
1976th of 2,977 US

Compared with PA, the US and 2022

Delaware County, PA average hours without power per customer compared with state and national averages, 2023Delaware County 2.9 hours, Pennsylvania average 4.9 hours, US average 7.1 hours, Delaware County, 2022 1.6 hoursDelaware CountyDelaware County2.9hPennsylvania averagePennsylvania average4.9hUS averageUS average7.1hDelaware County, 2022Delaware County, 20221.6h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Delaware County, PA customer-hours without power by month, 2023Jan 21K, Feb 30K, Mar 29K, Apr 39K, May 27K, Jun 104K, Jul 86K, Aug 314K, Sep 67K, Oct 30K, Nov 23K, Dec 44K0100k200k300k400k21KJan30KFeb29KMar39KApr27KMay104KJun86KJul314KAug67KSep30KOct23KNov44KDec
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Customer-hours; August was the worst month.

Delaware County year over year

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Delaware County, PA: average hours without power per customer by year2015: 13.4h; 2016: 3.3h; 2017: 2.0h; 2018: 18.5h, coverage 95%; 2019: 4.9h, coverage 96%; 2020: 8.1h, coverage 98%; 2021: 1.8h, coverage 98%; 2022: 1.6h, coverage 98%; 2023: 2.9h; 2024: 4.1h; 2025: 11.5h051015200%50%100%13.4h20153.3h20162.0h201718.5h20184.9h20198.1h20201.8h20211.6h20222.9h20234.1h202411.5h2025
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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 Delaware County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 7, 2023 21:00August 13, 2023 15:155d 18h22,144284K
2June 25, 2023 23:15July 2, 2023 02:456d 3h14,48372K
3February 28, 2023 11:15February 28, 2023 18:307h 15m7,0962,551
4September 8, 2023 09:00September 11, 2023 05:002d 20h4,44714K
5July 29, 2023 01:00August 1, 2023 18:303d 17h3,00718K
6January 7, 2023 13:30January 8, 2023 05:4516h 15m2,7901,685
7February 1, 2023 02:00February 2, 2023 06:451d 4h2,7245,705
8June 11, 2023 13:45June 15, 2023 18:454d 5h2,72315K
9December 17, 2023 18:00December 29, 2023 01:1511d 7h2,69131K
10July 17, 2023 02:45July 19, 2023 21:452d 19h2,61616K

Outage episodes by size in 2023: 165 reached 100+ customers, 36 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 Delaware County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PECO Energy Co20232.1 hrs0.8879 min0.76

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 277,130 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. Delaware County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Delaware County, PA annual power outage report, 2023, 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/2023/pennsylvania/delaware-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON