massoutage

County annual report · FIPS 37063

2018 Durham County, NC Power Outage Report

In 2018, customers in Durham County, NC went without power for an average of 225.3 hours, a total of 1.4M customer-hours (North Carolina average 55.2 hours). That ranks 11th worst of 94 North Carolina counties and 20th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
225.3
6,008 customers
Customer-hours out
1.4M
Peak customers out
27,697
Outages ≥1,000 out
53
2 of 10,000+ · 692 total
Longest outage
4d 12h
began May 16, 2018
Rank in state
11th/94
20th of 2,798 US

Compared with NC, the US and 2017

Durham County, NC average hours without power per customer compared with state and national averages, 2018Durham County 225.3 hours, North Carolina average 55.2 hours, US average 5.6 hours, Durham County, 2017 56.0 hoursDurham CountyDurham County225.3hNorth Carolina averageNorth Carolina avera…55.2hUS averageUS average5.6hDurham County, 2017Durham County, 201756.0h
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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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Durham County, NC customer-hours without power by month, 2018Jan 123K, Feb 12K, Mar 25K, Apr 47K, May 92K, Jun 62K, Jul 51K, Aug 65K, Sep 80K, Oct 653K, Nov 35K, Dec 109K0200k400k600k800k123KJan12KFeb25KMar47KApr92KMay62KJun51KJul65KAug80KSep653KOct35KNov109KDec
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Customer-hours; October was the worst month.

Durham County year over year

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Durham County, NC: average hours without power per customer by year2015: 145.3h; 2016: 135.8h; 2017: 56.0h; 2018: 225.3h, coverage 82%; 2019: 61.7h, coverage 90%; 2020: 71.8h, coverage 91%; 2021: 68.5h, coverage 92%; 2022: 248.8h, coverage 92%; 2023: 357.0h; 2024: 164.4h; 2025: 92.8h01002003004000%50%100%145.3h2015135.8h201656.0h2017225.3h201861.7h201971.8h202068.5h2021248.8h2022357.0h2023164.4h202492.8h2025
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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 Durham 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
1October 11, 2018 15:00October 16, 2018 02:454d 11h27,697636K
2January 17, 2018 15:00January 19, 2018 02:301d 11h12,16193K
3December 9, 2018 01:00December 12, 2018 04:303d 3h9,976106K
4April 11, 2018 12:45April 11, 2018 20:307h 45m6,4453,384
5May 10, 2018 21:45May 11, 2018 19:4522h5,62046K
6August 2, 2018 11:15August 3, 2018 05:4518h 30m5,40510K
7July 31, 2018 23:30August 1, 2018 07:308h5,3339,335
8January 25, 2018 07:15January 25, 2018 07:4530m5,1122,556
9June 11, 2018 03:45June 12, 2018 02:1522h 30m5,00117K
10November 12, 2018 11:00November 14, 2018 05:001d 18h4,29713K

Outage episodes by size in 2018: 121 reached 100+ customers, 53 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 Durham 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 Progress - (NC)201843.0 hrs2.712.6 hrs1.33
Duke Energy Carolinas, LLC201813.1 hrs1.813.7 hrs1.19
Piedmont Electric Member Corp201830.8 hrs2.812.5 hrs1.26
Wake Electric Membership Corp20184.7 hrs1.9873 min1.10
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 ÷ 6,008 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. Durham County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Durham 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/durham-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON