massoutage

County annual report · FIPS 37077

2023 Granville County, NC Power Outage Report

In 2023, customers in Granville County, NC went without power for an average of 24.2 hours, a total of 155K customer-hours (North Carolina average 12.6 hours). That ranks 23rd worst of 94 North Carolina counties and 313th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
24.2
6,395 customers
Customer-hours out
155K
Peak customers out
3,905
Outages ≥1,000 out
20
0 of 10,000+ · 669 total
Longest outage
3d 5h
began August 15, 2023
Rank in state
23rd/94
313th of 2,977 US

Compared with NC, the US and 2022

Granville County, NC average hours without power per customer compared with state and national averages, 2023Granville County 24.2 hours, North Carolina average 12.6 hours, US average 7.1 hours, Granville County, 2022 52.0 hoursGranville CountyGranville County24.2hNorth Carolina averageNorth Carolina avera…12.6hUS averageUS average7.1hGranville County, 2022Granville County, 20…52.0h
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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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Granville County, NC customer-hours without power by month, 2023Jan 4,942, Feb 5,173, Mar 16K, Apr 7,516, May 11K, Jun 5,470, Jul 18K, Aug 55K, Sep 23K, Oct 4,920, Nov 693, Dec 3,120020k40k60k4,942Jan5,173Feb16KMar7,516Apr11KMay5,470Jun18KJul55KAug23KSep4,920Oct693Nov3,120Dec
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Customer-hours; August was the worst month.

Granville County year over year

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Granville County, NC: average hours without power per customer by year2015: 22.2h; 2016: 27.6h; 2017: 8.6h; 2018: 75.9h, coverage 82%; 2019: 18.8h, coverage 90%; 2020: 19.6h, coverage 91%; 2021: 61.2h, coverage 92%; 2022: 52.0h, coverage 92%; 2023: 24.2h; 2024: 24.2h; 2025: 20.6h0204060800%50%100%22.2h201527.6h20168.6h201775.9h201818.8h201919.6h202061.2h202152.0h202224.2h202324.2h202420.6h2025
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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 Granville County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 15, 2023 12:45August 18, 2023 17:453d 5h3,90550K
2September 4, 2023 20:45September 5, 2023 00:153h 30m3,020759
3January 13, 2023 02:00January 13, 2023 03:451h 45m3,0152,533
4February 17, 2023 20:15February 18, 2023 01:155h2,6562,705
5March 10, 2023 16:15March 10, 2023 17:151h2,656667
6March 1, 2023 14:15March 1, 2023 21:157h2,605860
7June 22, 2023 19:15June 22, 2023 22:153h1,920692
8March 18, 2023 04:45March 18, 2023 15:1510h 30m1,8941,560
9September 23, 2023 03:15September 24, 2023 02:4523h 30m1,8497,260
10May 14, 2023 03:15May 14, 2023 06:453h 30m1,807555

Outage episodes by size in 2023: 87 reached 100+ customers, 20 reached 1,000+ customers, 0 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 Granville County reported on EIA Form 861 for 2023, 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)20233.7 hrs1.472.4 hrs1.22
Duke Energy Carolinas, LLC20235.0 hrs1.683.3 hrs1.52
Mecklenburg Electric Cooperative20234.1 hrs2.064.1 hrs2.06
Piedmont Electric Member Corp20233.5 hrs1.862.8 hrs1.77
Wake Electric Membership Corp20234.6 hrs2.371.6 hrs1.50
Virginia Electric & Power Co-----

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 ÷ 6,395 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. Granville County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Granville 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/granville-county

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