massoutage

County annual report · FIPS 34023

2020 Middlesex County, NJ Power Outage Report

In 2020, customers in Middlesex County, NJ went without power for an average of 9.1 hours, a total of 3.7M customer-hours (New Jersey average 17.5 hours). That ranks 17th worst of 21 New Jersey counties and 861st of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
9.1
406,721 customers
Customer-hours out
3.7M
Peak customers out
100,804
Outages ≥1,000 out
84
2 of 10,000+ · 423 total
Longest outage
30d 13h
began May 8, 2020
Rank in state
17th/21
861st of 3,019 US

Compared with NJ, the US and 2019

Middlesex County, NJ average hours without power per customer compared with state and national averages, 2020Middlesex County 9.1 hours, New Jersey average 17.5 hours, US average 8.7 hours, Middlesex County, 2019 2.2 hoursMiddlesex CountyMiddlesex County9.1hNew Jersey averageNew Jersey average17.5hUS averageUS average8.7hMiddlesex County, 2019Middlesex County, 20…2.2h
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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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Middlesex County, NJ customer-hours without power by month, 2020Jan 19K, Feb 25K, Mar 29K, Apr 45K, May 22K, Jun 74K, Jul 137K, Aug 3.2M, Sep 45K, Oct 36K, Nov 29K, Dec 90K01M2M3M4M19KJan25KFeb29KMar45KApr22KMay74KJun137KJul3.2MAug45KSep36KOct29KNov90KDec
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Customer-hours; August 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, 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
1July 31, 2020 05:15August 20, 2020 07:1520d 2h100,8043.2M
2August 27, 2020 02:15August 27, 2020 16:1514h16,3414,272
3May 8, 2020 16:30June 8, 2020 06:0030d 13h8,78970K
4December 6, 2020 15:00December 8, 2020 04:001d 13h8,6196,998
5June 20, 2020 12:00June 21, 2020 05:1517h 15m6,9412,714
6December 1, 2020 10:45December 3, 2020 03:001d 16h6,7153,593
7July 21, 2020 18:30July 26, 2020 23:005d 4h6,48571K
8December 24, 2020 22:00December 28, 2020 06:303d 8h6,47159K
9July 19, 2020 15:00July 20, 2020 09:4518h 45m6,4378,231
10November 9, 2020 09:30November 11, 2020 03:151d 17h4,8962,039

Outage episodes by size in 2020: 183 reached 100+ customers, 84 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 Middlesex County reported on EIA Form 861 for 2020, 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 Co20207.5 hrs1.0745 min0.62
Jersey Central Power & Lt Co202036.6 hrs2.743.1 hrs1.69
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 99% of New Jersey's customers in 2020; 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, 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/new-jersey/middlesex-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON