massoutage

County annual report · FIPS 37179

2018 Union County, NC Power Outage Report

In 2018, customers in Union County, NC went without power for an average of 9.3 hours, a total of 609K customer-hours (North Carolina average 55.2 hours). That ranks 70th worst of 94 North Carolina counties and 601st of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
9.3
65,408 customers
Customer-hours out
609K
Peak customers out
51,973
Outages ≥1,000 out
32
3 of 10,000+ · 911 total
Longest outage
3d 22h
began December 9, 2018
Rank in state
70th/94
601st of 2,798 US

Compared with NC, the US and 2017

Union County, NC average hours without power per customer compared with state and national averages, 2018Union County 9.3 hours, North Carolina average 55.2 hours, US average 5.6 hours, Union County, 2017 4.5 hoursUnion CountyUnion County9.3hNorth Carolina averageNorth Carolina avera…55.2hUS averageUS average5.6hUnion County, 2017Union County, 20174.5h
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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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Union County, NC customer-hours without power by month, 2018Jan 15K, Feb 4,065, Mar 2,313, Apr 32K, May 38K, Jun 48K, Jul 18K, Aug 23K, Sep 195K, Oct 169K, Nov 5,988, Dec 57K050k100k150k200k15KJan4,065Feb2,313Mar32KApr38KMay48KJun18KJul23KAug195KSep169KOct5,988Nov57KDec
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Customer-hours; September was the worst month.

Union County year over year

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Union County, NC: average hours without power per customer by year2015: 2.7h; 2016: 4.2h; 2017: 4.5h; 2018: 9.3h, coverage 82%; 2019: 4.4h, coverage 90%; 2020: 7.0h, coverage 91%; 2021: 3.1h, coverage 92%; 2022: 5.9h, coverage 92%; 2023: 4.7h; 2024: 13.8h; 2025: 4.7h0510150%50%100%2.7h20154.2h20164.5h20179.3h20184.4h20197.0h20203.1h20215.9h20224.7h202313.8h20244.7h2025
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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 Union County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 23, 2018 14:00May 23, 2018 15:451h 45m51,97313K
2May 23, 2018 12:45May 23, 2018 13:1530m51,92013K
3October 11, 2018 08:45October 15, 2018 02:303d 17h20,536160K
4December 9, 2018 10:45December 13, 2018 09:153d 22h6,61349K
5September 15, 2018 04:00September 19, 2018 01:153d 21h6,514178K
6October 5, 2018 13:15October 5, 2018 17:154h3,7907,220
7June 1, 2018 23:00June 3, 2018 15:151d 16h3,75513K
8April 15, 2018 13:45April 17, 2018 21:452d 8h3,39515K
9September 21, 2018 12:15September 22, 2018 06:1518h3,2949,722
10June 25, 2018 12:30June 27, 2018 21:452d 9h3,21211K

Outage episodes by size in 2018: 100 reached 100+ customers, 32 reached 1,000+ customers, 3 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 Union 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
Pee Dee Electric Member Corp201834.1 hrs5.313.1 hrs2.26
Union Electric Membership Corp - (NC)20184.6 hrs1.8663 min0.85
City of Monroe - (NC)201887 min0.7322 min0.54
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 ÷ 65,408 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. Union County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Union 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/union-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON