massoutage

County annual report · FIPS 42045

2020 Delaware County, PA Power Outage Report

In 2020, customers in Delaware County, PA went without power for an average of 8.1 hours, a total of 2.2M customer-hours (Pennsylvania average 6.5 hours). That ranks 17th worst of 67 Pennsylvania counties and 947th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
8.1
277,130 customers
Customer-hours out
2.2M
Peak customers out
36,688
Outages ≥1,000 out
41
3 of 10,000+ · 510 total
Longest outage
13d 1h
began August 4, 2020
Rank in state
17th/67
947th of 3,019 US

Compared with PA, the US and 2019

Delaware County, PA average hours without power per customer compared with state and national averages, 2020Delaware County 8.1 hours, Pennsylvania average 6.5 hours, US average 8.7 hours, Delaware County, 2019 4.9 hoursDelaware CountyDelaware County8.1hPennsylvania averagePennsylvania average6.5hUS averageUS average8.7hDelaware County, 2019Delaware County, 20194.9h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Delaware County, PA customer-hours without power by month, 2020Jan 24K, Feb 25K, Mar 15K, Apr 65K, May 34K, Jun 1.0M, Jul 90K, Aug 569K, Sep 28K, Oct 43K, Nov 44K, Dec 281K0500k1M1.5M24KJan25KFeb15KMar65KApr34KMay1.0MJun90KJul569KAug28KSep43KOct44KNov281KDec
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Customer-hours; June 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, 2020

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 2, 2020 20:45June 13, 2020 22:3011d 1h36,688997K
2August 4, 2020 00:15August 17, 2020 01:1513d 1h29,451532K
3December 24, 2020 05:00December 31, 2020 00:156d 19h14,769262K
4April 9, 2020 17:30April 11, 2020 21:452d 4h9,11931K
5April 12, 2020 22:15April 14, 2020 21:451d 23h5,03725K
6June 14, 2020 02:30June 15, 2020 01:4523h 15m4,6965,698
7October 16, 2020 11:45October 17, 2020 22:451d 11h3,54818K
8November 10, 2020 14:00November 19, 2020 19:459d 5h3,35618K
9August 26, 2020 12:15August 30, 2020 16:004d 3h3,11615K
10February 7, 2020 13:45February 9, 2020 01:451d 12h2,4239,939

Outage episodes by size in 2020: 177 reached 100+ customers, 41 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 Delaware County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PECO Energy Co202010.5 hrs1.5276 min0.82

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Pennsylvania's customers in 2020; 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, 2020, 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/2020/pennsylvania/delaware-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON