massoutage

County annual report · FIPS 34037

2023 Sussex County, NJ Power Outage Report

In 2023, customers in Sussex County, NJ went without power for an average of 11.0 hours, a total of 522K customer-hours (New Jersey average 2.4 hours). That ranks 1st worst of 21 New Jersey counties and 775th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
11.0
47,606 customers
Customer-hours out
522K
Peak customers out
8,270
Outages ≥1,000 out
53
0 of 10,000+ · 654 total
Longest outage
4d 20h
began September 7, 2023
Rank in state
1st/21
775th of 2,977 US

Compared with NJ, the US and 2022

Sussex County, NJ average hours without power per customer compared with state and national averages, 2023Sussex County 11.0 hours, New Jersey average 2.4 hours, US average 7.1 hours, Sussex County, 2022 11.5 hoursSussex CountySussex County11.0hNew Jersey averageNew Jersey average2.4hUS averageUS average7.1hSussex County, 2022Sussex County, 202211.5h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Sussex County, NJ customer-hours without power by month, 2023Jan 20K, Feb 29K, Mar 31K, Apr 22K, May 7,723, Jun 60K, Jul 131K, Aug 27K, Sep 72K, Oct 16K, Nov 33K, Dec 74K050k100k150k20KJan29KFeb31KMar22KApr7,723May60KJun131KJul27KAug72KSep16KOct33KNov74KDec
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Customer-hours; July was the worst month.

Sussex County year over year

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Sussex County, NJ: average hours without power per customer by year2015: 3.7h; 2016: 14.5h; 2017: 9.5h; 2018: 74.7h, coverage 99%; 2019: 49.0h, coverage 98%; 2020: 36.7h, coverage 99%; 2021: 22.5h, coverage 99%; 2022: 11.5h, coverage 99%; 2023: 11.0h; 2024: 24.2h; 2025: 24.6h0204060800%50%100%3.7h201514.5h20169.5h201774.7h201849.0h201936.7h202022.5h202111.5h202211.0h202324.2h202424.6h2025
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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 Sussex County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 7, 2023 17:30September 12, 2023 13:304d 20h8,27052K
2December 18, 2023 04:15December 19, 2023 17:451d 13h8,21438K
3July 12, 2023 20:00July 17, 2023 05:454d 9h7,51067K
4June 20, 2023 19:30June 21, 2023 03:007h 30m6,2961,722
5September 24, 2023 08:15September 24, 2023 09:0045m6,0521,515
6March 29, 2023 10:15March 29, 2023 16:005h 45m5,0534,480
7June 24, 2023 10:45June 26, 2023 11:002d4,8676,729
8July 25, 2023 15:15July 26, 2023 10:0018h 45m4,50917K
9November 21, 2023 23:00November 23, 2023 04:451d 5h4,27812K
10June 26, 2023 13:15June 29, 2023 07:452d 18h4,18740K

Outage episodes by size in 2023: 139 reached 100+ customers, 53 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 Sussex County reported on EIA Form 861 for 2023, 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 Co20234.4 hrs1.673.7 hrs1.56
Rockland Electric Co-----
Sussex Rural Electric Coop Inc-----

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 47,606 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. Sussex County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Sussex County, NJ annual power outage report, 2023, 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/2023/new-jersey/sussex-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON