massoutage

County annual report · FIPS 10003

2018 New Castle County, DE Power Outage Report

In 2018, customers in New Castle County, DE went without power for an average of 4.9 hours, a total of 946K customer-hours (Delaware average 2.4 hours). That ranks 1st worst of 3 Delaware counties and 1056th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
4.9
191,056 customers
Customer-hours out
946K
Peak customers out
44,559
Outages ≥1,000 out
49
1 of 10,000+ · 652 total
Longest outage
3d 13h
began March 2, 2018
Rank in state
1st/3
1056th of 2,798 US

Compared with DE, the US and 2017

New Castle County, DE average hours without power per customer compared with state and national averages, 2018New Castle County 4.9 hours, Delaware average 2.4 hours, US average 5.6 hours, New Castle County, 2017 5.5 hoursNew Castle CountyNew Castle County4.9hDelaware averageDelaware average2.4hUS averageUS average5.6hNew Castle County, 2017New Castle County, 2…5.5h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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New Castle County, DE customer-hours without power by month, 2018Jan 31K, Feb 16K, Mar 652K, Apr 23K, May 39K, Jun 22K, Jul 39K, Aug 33K, Sep 36K, Oct 14K, Nov 20K, Dec 21K0200k400k600k800k31KJan16KFeb652KMar23KApr39KMay22KJun39KJul33KAug36KSep14KOct20KNov21KDec
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Customer-hours; March 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, 2018

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
1March 2, 2018 12:00March 6, 2018 01:003d 13h44,559582K
2March 19, 2018 08:30March 20, 2018 04:1519h 45m5,3401,926
3March 21, 2018 09:15March 23, 2018 09:152d4,73748K
4January 8, 2018 14:30January 8, 2018 23:309h4,5037,079
5November 15, 2018 13:00November 17, 2018 11:001d 22h4,0144,941
6May 30, 2018 06:45May 31, 2018 03:1520h 30m4,0124,641
7September 9, 2018 13:30September 11, 2018 04:301d 15h3,0387,073
8May 31, 2018 11:30June 1, 2018 02:3015h2,8531,318
9February 4, 2018 22:15February 5, 2018 01:002h 45m2,6461,065
10June 3, 2018 11:45June 4, 2018 05:1517h 30m2,373853

Outage episodes by size in 2018: 187 reached 100+ customers, 49 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Delmarva Power20182.8 hrs1.1286 min0.91
New Castle Municipal Serv Comm201839 min1.2039 min1.20
Town of Smyrna - (DE)-----
City of Newark - (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 86% of Delaware's customers in 2018; 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, 2018, 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/2018/delaware/new-castle-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON