massoutage

County annual report · FIPS 37097

2018 Iredell County, NC Power Outage Report

In 2018, customers in Iredell County, NC went without power for an average of 13.4 hours, a total of 471K customer-hours (North Carolina average 55.2 hours). That ranks 60th worst of 94 North Carolina counties and 421st of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
13.4
35,197 customers
Customer-hours out
471K
Peak customers out
12,951
Outages ≥1,000 out
21
1 of 10,000+ · 789 total
Longest outage
3d 7h
began October 11, 2018
Rank in state
60th/94
421st of 2,798 US

Compared with NC, the US and 2017

Iredell County, NC average hours without power per customer compared with state and national averages, 2018Iredell County 13.4 hours, North Carolina average 55.2 hours, US average 5.6 hours, Iredell County, 2017 3.9 hoursIredell CountyIredell County13.4hNorth Carolina averageNorth Carolina avera…55.2hUS averageUS average5.6hIredell County, 2017Iredell County, 20173.9h
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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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Iredell County, NC customer-hours without power by month, 2018Jan 16K, Feb 6,842, Mar 21K, Apr 9,442, May 21K, Jun 74K, Jul 41K, Aug 39K, Sep 40K, Oct 181K, Nov 6,961, Dec 15K050k100k150k200k16KJan6,842Feb21KMar9,442Apr21KMay74KJun41KJul39KAug40KSep181KOct6,961Nov15KDec
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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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 11, 2018 15:00October 14, 2018 22:153d 7h12,951163K
2July 22, 2018 14:45July 22, 2018 18:454h5,0527,754
3August 28, 2018 16:00August 29, 2018 02:1510h 15m5,0031,268
4July 24, 2018 13:00July 24, 2018 22:459h 45m4,50718K
5June 21, 2018 14:15June 22, 2018 23:451d 9h4,15942K
6September 15, 2018 18:30September 17, 2018 23:302d 5h3,62032K
7October 10, 2018 22:15October 11, 2018 02:003h 45m3,4436,188
8March 6, 2018 18:15March 7, 2018 13:0018h 45m2,77512K
9June 30, 2018 22:45July 1, 2018 04:005h 15m2,6098,478
10August 8, 2018 18:15August 9, 2018 21:451d 3h2,26718K

Outage episodes by size in 2018: 105 reached 100+ customers, 21 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Carolinas, LLC201813.1 hrs1.813.7 hrs1.19
EnergyUnited Elec Member Corp201810.9 hrs1.772.0 hrs1.07
City of Statesville - (NC)20181.8 hrs1.26--
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 82% of North Carolina's customers in 2018; 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, 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/north-carolina/iredell-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON