massoutage

County annual report · FIPS 37081

2023 Guilford County, NC Power Outage Report

In 2023, customers in Guilford County, NC went without power for an average of 28.5 hours, a total of 1.2M customer-hours (North Carolina average 12.6 hours). That ranks 20th worst of 94 North Carolina counties and 259th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
28.5
41,756 customers
Customer-hours out
1.2M
Peak customers out
20,891
Outages ≥1,000 out
68
2 of 10,000+ · 594 total
Longest outage
4d 15h
began August 26, 2023
Rank in state
20th/94
259th of 2,977 US

Compared with NC, the US and 2022

Guilford County, NC average hours without power per customer compared with state and national averages, 2023Guilford County 28.5 hours, North Carolina average 12.6 hours, US average 7.1 hours, Guilford County, 2022 65.8 hoursGuilford CountyGuilford County28.5hNorth Carolina averageNorth Carolina avera…12.6hUS averageUS average7.1hGuilford County, 2022Guilford County, 202265.8h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Guilford County, NC customer-hours without power by month, 2023Jan 27K, Feb 56K, Mar 43K, Apr 63K, May 50K, Jun 123K, Jul 150K, Aug 442K, Sep 72K, Oct 50K, Nov 71K, Dec 44K0200k400k600k27KJan56KFeb43KMar63KApr50KMay123KJun150KJul442KAug72KSep50KOct71KNov44KDec
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Customer-hours; August was the worst month.

Guilford County year over year

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Guilford County, NC: average hours without power per customer by year2015: 14.8h; 2016: 12.8h; 2017: 18.8h; 2018: 170.5h, coverage 82%; 2019: 33.0h, coverage 90%; 2020: 31.5h, coverage 91%; 2021: 57.1h, coverage 92%; 2022: 65.8h, coverage 92%; 2023: 28.5h; 2024: 22.7h; 2025: 15.3h0501001502000%50%100%14.8h201512.8h201618.8h2017170.5h201833.0h201931.5h202057.1h202165.8h202228.5h202322.7h202415.3h2025
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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 Guilford County, 2023

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
1August 15, 2023 10:30August 19, 2023 06:153d 19h20,891357K
2July 9, 2023 11:30July 11, 2023 17:152d 5h19,013120K
3April 10, 2023 09:45April 11, 2023 04:0018h 15m7,08928K
4June 5, 2023 12:00June 6, 2023 07:4519h 45m6,90436K
5October 27, 2023 11:45October 28, 2023 02:1514h 30m6,53815K
6October 13, 2023 11:45October 14, 2023 03:4516h6,5268,235
7February 16, 2023 14:45February 17, 2023 10:1519h 30m6,4177,769
8November 3, 2023 10:15November 4, 2023 06:1520h6,19417K
9December 25, 2023 18:15December 26, 2023 06:1512h6,1684,657
10November 8, 2023 14:30November 9, 2023 01:0010h 30m6,13910K

Outage episodes by size in 2023: 192 reached 100+ customers, 68 reached 1,000+ customers, 2 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 Guilford County reported on EIA Form 861 for 2023, 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 Progress - (NC)20233.7 hrs1.472.4 hrs1.22
Duke Energy Carolinas, LLC20235.0 hrs1.683.3 hrs1.52
EnergyUnited Elec Member Corp20233.7 hrs1.642.2 hrs1.37
Town of High Point20232.0 hrs1.1066 min0.81
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 n/a of North Carolina's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 41,756 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. Guilford County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Guilford County, NC annual power outage report, 2023, 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/2023/north-carolina/guilford-county

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