massoutage

County annual report · FIPS 34025

2021 Monmouth County, NJ Power Outage Report

In 2021, customers in Monmouth County, NJ went without power for an average of 3.7 hours, a total of 1.3M customer-hours (New Jersey average 2.9 hours). That ranks 6th worst of 21 New Jersey counties and 1613th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.7
345,701 customers
Customer-hours out
1.3M
Peak customers out
45,880
Outages ≥1,000 out
68
6 of 10,000+ · 387 total
Longest outage
6d 2h
began July 6, 2021
Rank in state
6th/21
1613th of 2,974 US

Compared with NJ, the US and 2020

Monmouth County, NJ average hours without power per customer compared with state and national averages, 2021Monmouth County 3.7 hours, New Jersey average 2.9 hours, US average 8.9 hours, Monmouth County, 2020 33.5 hoursMonmouth CountyMonmouth County3.7hNew Jersey averageNew Jersey average2.9hUS averageUS average8.9hMonmouth County, 2020Monmouth County, 202033.5h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Monmouth County, NJ customer-hours without power by month, 2021Jan 31K, Feb 39K, Mar 96K, Apr 37K, May 52K, Jun 89K, Jul 233K, Aug 86K, Sep 298K, Oct 175K, Nov 104K, Dec 46K0100k200k300k31KJan39KFeb96KMar37KApr52KMay89KJun233KJul86KAug298KSep175KOct104KNov46KDec
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Customer-hours; September was the worst month.

Monmouth County year over year

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Monmouth County, NJ: average hours without power per customer by year2015: 1.1h; 2016: 4.5h; 2017: 3.2h; 2018: 5.0h, coverage 99%; 2019: 12.8h, coverage 98%; 2020: 33.5h, coverage 99%; 2021: 3.7h, coverage 99%; 2022: 2.8h, coverage 99%; 2023: 3.2h; 2024: 5.1h; 2025: 4.2h0102030400%50%100%1.1h20154.5h20163.2h20175.0h201812.8h201933.5h20203.7h20212.8h20223.2h20235.1h20244.2h2025
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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 Monmouth County, 2021

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
1September 13, 2021 01:30September 17, 2021 03:154d 1h45,880242K
2June 8, 2021 11:30June 11, 2021 01:302d 14h19,42940K
3October 12, 2021 03:30October 12, 2021 11:308h14,08013K
4July 6, 2021 02:00July 12, 2021 04:006d 2h12,832164K
5November 13, 2021 07:30November 17, 2021 03:303d 20h11,62680K
6March 28, 2021 13:00March 31, 2021 07:002d 18h11,20851K
7October 29, 2021 12:00November 2, 2021 11:003d 23h8,554116K
8September 1, 2021 13:00September 5, 2021 10:003d 21h7,71628K
9February 15, 2021 11:30February 16, 2021 06:0018h 30m6,7473,590
10April 10, 2021 20:30April 11, 2021 11:0014h 30m6,5896,370

Outage episodes by size in 2021: 158 reached 100+ customers, 68 reached 1,000+ customers, 6 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 Monmouth County reported on EIA Form 861 for 2021, 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 Co202160 min0.6641 min0.60
Jersey Central Power & Lt Co20215.8 hrs1.893.2 hrs1.59

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 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 345,701 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. Monmouth County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Monmouth County, NJ annual power outage report, 2021, 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/2021/new-jersey/monmouth-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON