massoutage

County annual report · FIPS 10003

2024 New Castle County, DE Power Outage Report

In 2024, customers in New Castle County, DE went without power for an average of 4.6 hours, a total of 882K customer-hours (Delaware average 2.2 hours). That ranks 1st worst of 3 Delaware counties and 1694th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
4.6
191,056 customers
Customer-hours out
882K
Peak customers out
20,780
Outages ≥1,000 out
36
1 of 10,000+ · 397 total
Longest outage
11d
began July 31, 2024
Rank in state
1st/3
1694th of 2,990 US

Compared with DE, the US and 2023

New Castle County, DE average hours without power per customer compared with state and national averages, 2024New Castle County 4.6 hours, Delaware average 2.2 hours, US average 12.6 hours, New Castle County, 2023 4.5 hoursNew Castle CountyNew Castle County4.6hDelaware averageDelaware average2.2hUS averageUS average12.6hNew Castle County, 2023New Castle County, 2…4.5h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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New Castle County, DE customer-hours without power by month, 2024Jan 381K, Feb 17K, Mar 31K, Apr 31K, May 36K, Jun 77K, Jul 104K, Aug 75K, Sep 33K, Oct 27K, Nov 46K, Dec 23K0100k200k300k400k381KJan17KFeb31KMar31KApr36KMay77KJun104KJul75KAug33KSep27KOct46KNov23KDec
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Customer-hours; January was the worst month.

New Castle County year over year

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New Castle County, DE: average hours without power per customer by year2015: 5.7h; 2016: 3.8h; 2017: 5.5h; 2018: 4.9h, coverage 86%; 2019: 2.8h, coverage 86%; 2020: 7.7h, coverage 86%; 2021: 2.1h, coverage 86%; 2022: 2.4h, coverage 86%; 2023: 4.5h; 2024: 4.6h; 2025: 3.9h024680%50%100%5.7h20153.8h20165.5h20174.9h20182.8h20197.7h20202.1h20212.4h20224.5h20234.6h20243.9h2025
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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 Delaware customers tracked each year.

Biggest outages in New Castle County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 9, 2024 12:15January 17, 2024 07:007d 18h20,780365K
2July 16, 2024 23:45July 22, 2024 09:305d 9h9,48269K
3May 13, 2024 07:15May 13, 2024 09:302h 15m7,2831,828
4November 11, 2024 00:45November 13, 2024 22:452d 22h7,23616K
5September 27, 2024 11:30September 29, 2024 03:151d 15h4,32716K
6June 22, 2024 11:00June 28, 2024 21:156d 10h3,75440K
7June 5, 2024 08:15June 7, 2024 06:151d 22h3,5496,788
8January 17, 2024 10:15January 19, 2024 20:302d 10h3,2614,355
9July 31, 2024 09:15August 11, 2024 09:4511d3,22052K
10March 29, 2024 11:45March 30, 2024 22:151d 10h3,0767,362

Outage episodes by size in 2024: 141 reached 100+ customers, 36 reached 1,000+ customers, 1 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 New Castle County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Delmarva Power20241.7 hrs0.7362 min0.61
City of Newark - (DE)202484 min0.7784 min0.77
New Castle Municipal Serv Comm201839 min1.2039 min1.20
Town of Smyrna - (DE)-----
Town of Middletown - (DE)-----

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 Delaware's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 191,056 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. New Castle County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), New Castle County, DE annual power outage report, 2024, 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/2024/delaware/new-castle-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON