massoutage

County annual report · FIPS 34023

2015 Middlesex County, NJ Power Outage Report

In 2015, customers in Middlesex County, NJ went without power for an average of 1.0 hours, a total of 397K customer-hours (New Jersey average 4.5 hours). That ranks 18th worst of 21 New Jersey counties and 1783rd of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
1.0
406,721 customers
Customer-hours out
397K
Peak customers out
9,864
Outages ≥1,000 out
118
0 of 10,000+ · 677 total
Longest outage
5d 10h
began September 29, 2015
Rank in state
18th/21
1783rd of 2,484 US

Compared with NJ, the US

Middlesex County, NJ average hours without power per customer compared with state and national averages, 2015Middlesex County 1.0 hours, New Jersey average 4.5 hours, US average 2.9 hoursMiddlesex CountyMiddlesex County1.0hNew Jersey averageNew Jersey average4.5hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Middlesex County, NJ customer-hours without power by month, 2015Jan 13K, Feb 16K, Mar 22K, Apr 32K, May 28K, Jun 31K, Jul 29K, Aug 42K, Sep 68K, Oct 38K, Nov 25K, Dec 53K020k40k60k80k13KJan16KFeb22KMar32KApr28KMay31KJun29KJul42KAug68KSep38KOct25KNov53KDec
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Customer-hours; September was the worst month.

Middlesex County year over year

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Middlesex County, NJ: average hours without power per customer by year2015: 1.0h; 2016: 2.8h; 2017: 1.5h; 2018: 3.2h, coverage 99%; 2019: 2.2h, coverage 98%; 2020: 9.1h, coverage 99%; 2021: 1.6h, coverage 99%; 2022: 0.9h, coverage 99%; 2023: 1.2h; 2024: 1.8h; 2025: 3.1h02.557.5100%50%100%1.0h20152.8h20161.5h20173.2h20182.2h20199.1h20201.6h20210.9h20221.2h20231.8h20243.1h2025
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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 New Jersey customers tracked each year.

Biggest outages in Middlesex County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 10, 2015 00:15March 11, 2015 20:301d 20h9,8644,629
2April 16, 2015 13:00April 16, 2015 18:305h 30m8,8052,207
3December 19, 2015 21:45December 21, 2015 03:001d 5h8,0965,014
4September 29, 2015 12:15October 4, 2015 22:155d 10h6,46929K
5September 10, 2015 08:00September 11, 2015 10:151d 2h5,93713K
6April 20, 2015 11:00April 21, 2015 06:4519h 45m5,2859,501
7April 21, 2015 07:45April 21, 2015 11:153h 30m4,9841,826
8December 2, 2015 09:00December 3, 2015 02:4517h 45m3,99310K
9September 27, 2015 01:00September 27, 2015 03:002h3,7304,864
10August 27, 2015 12:00August 28, 2015 09:1521h 15m3,6007,604

Outage episodes by size in 2015: 247 reached 100+ customers, 118 reached 1,000+ customers, 0 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 Middlesex County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Public Service Elec & Gas Co201581 min0.6938 min0.64
Jersey Central Power & Lt Co20151.7 hrs1.091.7 hrs1.09
Borough of Milltown - (NJ)-----
Borough of South River - (NJ)-----

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 New Jersey's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 406,721 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. Middlesex County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Middlesex County, NJ 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/new-jersey/middlesex-county

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