massoutage

County annual report · FIPS 37097

2020 Iredell County, NC Power Outage Report

In 2020, customers in Iredell County, NC went without power for an average of 26.3 hours, a total of 926K customer-hours (North Carolina average 20.3 hours). That ranks 31st worst of 94 North Carolina counties and 320th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
26.3
35,197 customers
Customer-hours out
926K
Peak customers out
33,405
Outages ≥1,000 out
25
1 of 10,000+ · 804 total
Longest outage
4d 12h
began October 29, 2020
Rank in state
31st/94
320th of 3,019 US

Compared with NC, the US and 2019

Iredell County, NC average hours without power per customer compared with state and national averages, 2020Iredell County 26.3 hours, North Carolina average 20.3 hours, US average 8.7 hours, Iredell County, 2019 7.3 hoursIredell CountyIredell County26.3hNorth Carolina averageNorth Carolina avera…20.3hUS averageUS average8.7hIredell County, 2019Iredell County, 20197.3h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Iredell County, NC customer-hours without power by month, 2020Jan 45K, Feb 28K, Mar 5,037, Apr 58K, May 33K, Jun 49K, Jul 14K, Aug 27K, Sep 19K, Oct 607K, Nov 28K, Dec 12K0200k400k600k800k45KJan28KFeb5,037Mar58KApr33KMay49KJun14KJul27KAug19KSep607KOct28KNov12KDec
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Customer-hours; October was the worst month.

Iredell County year over year

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Iredell County, NC: average hours without power per customer by year2015: 3.9h; 2016: 5.6h; 2017: 3.9h; 2018: 13.4h, coverage 82%; 2019: 7.3h, coverage 90%; 2020: 26.3h, coverage 91%; 2021: 5.4h, coverage 92%; 2022: 12.1h, coverage 92%; 2023: 17.4h; 2024: 21.9h; 2025: 6.9h01020300%50%100%3.9h20155.6h20163.9h201713.4h20187.3h201926.3h20205.4h202112.1h202217.4h202321.9h20246.9h2025
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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 North Carolina customers tracked each year.

Biggest outages in Iredell County, 2020

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
1October 29, 2020 09:30November 2, 2020 22:154d 12h33,405615K
2May 11, 2020 12:00May 11, 2020 21:309h 30m8,3008,936
3June 20, 2020 13:30June 21, 2020 06:4517h 15m7,33543K
4April 12, 2020 22:30April 14, 2020 23:452d 1h6,02232K
5January 11, 2020 17:45January 13, 2020 14:451d 21h4,43036K
6December 26, 2020 10:30December 26, 2020 23:4513h 15m3,8373,407
7April 10, 2020 01:00April 10, 2020 15:0014h3,78714K
8May 4, 2020 12:30May 4, 2020 22:159h 45m3,3295,507
9August 6, 2020 12:30August 7, 2020 22:301d 10h3,1803,222
10September 4, 2020 05:45September 4, 2020 19:3013h 45m3,0975,550

Outage episodes by size in 2020: 104 reached 100+ customers, 25 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 Iredell County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Carolinas, LLC202011.2 hrs1.713.1 hrs1.18
EnergyUnited Elec Member Corp202010.0 hrs1.792.2 hrs1.14
City of Statesville - (NC)202020 min0.28--
Duke Energy-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of North Carolina's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 35,197 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. Iredell County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Iredell County, NC annual power outage report, 2020, 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/2020/north-carolina/iredell-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON