massoutage

County annual report · FIPS 42101

2018 Philadelphia County, PA Power Outage Report

In 2018, customers in Philadelphia County, PA went without power for an average of 2.7 hours, a total of 2.1M customer-hours (Pennsylvania average 8.3 hours). That ranks 56th worst of 67 Pennsylvania counties and 1615th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
2.7
802,812 customers
Customer-hours out
2.1M
Peak customers out
32,117
Outages ≥1,000 out
23
1 of 10,000+ · 35 total
Longest outage
36d 21h
began May 25, 2018
Rank in state
56th/67
1615th of 2,798 US

Compared with PA, the US and 2017

Philadelphia County, PA average hours without power per customer compared with state and national averages, 2018Philadelphia County 2.7 hours, Pennsylvania average 8.3 hours, US average 5.6 hours, Philadelphia County, 2017 1.5 hoursPhiladelphia CountyPhiladelphia County2.7hPennsylvania averagePennsylvania average8.3hUS averageUS average5.6hPhiladelphia County, 2017Philadelphia County,…1.5h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Philadelphia County, PA customer-hours without power by month, 2018Jan 136K, Feb 85K, Mar 927K, Apr 86K, May 72K, Jun 106K, Jul 137K, Aug 121K, Sep 148K, Oct 95K, Nov 139K, Dec 86K0250k500k750k1M136KJan85KFeb927KMar86KApr72KMay106KJun137KJul121KAug148KSep95KOct139KNov86KDec
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Customer-hours; March 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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 23, 2018 13:30March 6, 2018 01:0010d 11h32,117726K
2September 2, 2018 03:45September 14, 2018 21:4512d 18h8,02375K
3July 21, 2018 21:15August 18, 2018 11:0027d 13h7,836118K
4July 1, 2018 13:45July 18, 2018 23:1517d 9h6,72292K
5March 6, 2018 03:15March 18, 2018 00:3011d 21h6,515175K
6April 14, 2018 22:00April 21, 2018 02:156d 4h4,92134K
7May 25, 2018 10:15July 1, 2018 07:4536d 21h4,739124K
8October 8, 2018 10:45November 10, 2018 11:4533d 1h4,263122K
9January 1, 2018 00:00January 25, 2018 14:3024d 14h4,157129K
10September 15, 2018 04:00October 8, 2018 09:1523d 5h4,13686K

Outage episodes by size in 2018: 27 reached 100+ customers, 23 reached 1,000+ customers, 1 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PECO Energy Co201810.7 hrs1.5188 min0.90
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 95% of Pennsylvania's customers in 2018; 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, 2018, 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/2018/pennsylvania/philadelphia-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON