massoutage

County annual report · FIPS 34041

2021 Warren County, NJ Power Outage Report

In 2021, customers in Warren County, NJ went without power for an average of 10.3 hours, a total of 573K customer-hours (New Jersey average 2.9 hours). That ranks 4th worst of 21 New Jersey counties and 764th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
10.3
55,613 customers
Customer-hours out
573K
Peak customers out
9,951
Outages ≥1,000 out
28
0 of 10,000+ · 531 total
Longest outage
5d 1h
began September 1, 2021
Rank in state
4th/21
764th of 2,974 US

Compared with NJ, the US and 2020

Warren County, NJ average hours without power per customer compared with state and national averages, 2021Warren County 10.3 hours, New Jersey average 2.9 hours, US average 8.9 hours, Warren County, 2020 15.5 hoursWarren CountyWarren County10.3hNew Jersey averageNew Jersey average2.9hUS averageUS average8.9hWarren County, 2020Warren County, 202015.5h
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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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Warren County, NJ customer-hours without power by month, 2021Jan 8,334, Feb 60K, Mar 18K, Apr 14K, May 39K, Jun 24K, Jul 160K, Aug 69K, Sep 154K, Oct 7,106, Nov 16K, Dec 4,982050k100k150k200k8,334Jan60KFeb18KMar14KApr39KMay24KJun160KJul69KAug154KSep7,106Oct16KNov4,982Dec
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Customer-hours; July was the worst month.

Warren County year over year

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Warren County, NJ: average hours without power per customer by year2015: 1.8h; 2016: 9.2h; 2017: 9.3h; 2018: 37.9h, coverage 99%; 2019: 10.1h, coverage 98%; 2020: 15.5h, coverage 99%; 2021: 10.3h, coverage 99%; 2022: 6.7h, coverage 99%; 2023: 7.1h; 2024: 17.9h; 2025: 12.0h0102030400%50%100%1.8h20159.2h20169.3h201737.9h201810.1h201915.5h202010.3h20216.7h20227.1h202317.9h202412.0h2025
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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 Warren County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 6, 2021 21:30July 11, 2021 01:304d 4h9,951132K
2January 21, 2021 18:45January 21, 2021 19:1530m6,1081,528
3September 1, 2021 01:00September 6, 2021 02:455d 1h6,068126K
4August 11, 2021 01:00August 13, 2021 18:152d 17h6,03546K
5February 15, 2021 23:00February 16, 2021 22:0023h5,13455K
6May 26, 2021 18:00May 27, 2021 22:001d 4h3,6859,592
7March 26, 2021 14:15March 28, 2021 02:301d 12h3,3998,991
8August 20, 2021 17:00August 21, 2021 06:1513h 15m3,302877
9December 8, 2021 17:30December 8, 2021 19:001h 30m3,292828
10September 20, 2021 08:00September 20, 2021 10:302h 30m2,8595,234

Outage episodes by size in 2021: 85 reached 100+ customers, 28 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 Warren County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
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 ÷ 55,613 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. Warren County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Warren 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/warren-county

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