massoutage

County annual report · FIPS 42101

2015 Philadelphia County, PA Power Outage Report

In 2015, customers in Philadelphia County, PA went without power for an average of 2.1 hours, a total of 1.7M customer-hours (Pennsylvania average 3.2 hours). That ranks 45th worst of 66 Pennsylvania counties and 1198th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
2.1
802,812 customers
Customer-hours out
1.7M
Peak customers out
43,629
Outages ≥1,000 out
126
4 of 10,000+ · 382 total
Longest outage
10d 8h
began February 2, 2015
Rank in state
45th/66
1198th of 2,484 US

Compared with PA, the US

Philadelphia County, PA average hours without power per customer compared with state and national averages, 2015Philadelphia County 2.1 hours, Pennsylvania average 3.2 hours, US average 2.9 hoursPhiladelphia CountyPhiladelphia County2.1hPennsylvania averagePennsylvania average3.2hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Philadelphia County, PA customer-hours without power by month, 2015Jan 70K, Feb 147K, Mar 144K, Apr 135K, May 104K, Jun 522K, Jul 121K, Aug 98K, Sep 97K, Oct 92K, Nov 98K, Dec 53K0200k400k600k70KJan147KFeb144KMar135KApr104KMay522KJun121KJul98KAug97KSep92KOct98KNov53KDec
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Customer-hours; June was the worst month.

Philadelphia County year over year

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Philadelphia County, PA: average hours without power per customer by year2015: 2.1h; 2016: 1.6h; 2017: 1.5h; 2018: 2.7h, coverage 95%; 2019: 1.6h, coverage 96%; 2020: 2.7h, coverage 98%; 2021: 1.6h, coverage 98%; 2022: 1.1h, coverage 98%; 2023: 1.1h; 2024: 1.9h; 2025: 2.3h01230%50%100%2.1h20151.6h20161.5h20172.7h20181.6h20192.7h20201.6h20211.1h20221.1h20231.9h20242.3h2025
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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 Philadelphia County, 2015

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 22, 2015 20:00June 29, 2015 09:006d 13h43,629405K
2September 14, 2015 08:15September 16, 2015 08:001d 23h18,75915K
3June 17, 2015 10:15June 19, 2015 08:001d 21h18,58524K
4March 1, 2015 11:00March 8, 2015 06:006d 19h12,81158K
5May 26, 2015 19:30May 27, 2015 16:4521h 15m7,4508,489
6April 9, 2015 06:45April 11, 2015 07:302d7,32012K
7November 13, 2015 08:45November 15, 2015 05:151d 20h6,76012K
8April 28, 2015 08:15April 28, 2015 09:301h 15m6,5325,267
9November 24, 2015 09:30November 26, 2015 09:001d 23h6,36617K
10November 18, 2015 15:45November 22, 2015 04:003d 12h6,18920K

Outage episodes by size in 2015: 241 reached 100+ customers, 126 reached 1,000+ customers, 4 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 Philadelphia County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PECO Energy Co20153.8 hrs0.9465 min0.75
Philadelphia Authority for Industrial Development-----

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 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 802,812 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. Philadelphia County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Philadelphia County, PA annual power outage report, 2015, 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/2015/pennsylvania/philadelphia-county

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