massoutage

County annual report · FIPS 37037

2024 Chatham County, NC Power Outage Report

In 2024, customers in Chatham County, NC went without power for an average of 79.5 hours, a total of 302K customer-hours (North Carolina average 66.1 hours). That ranks 19th worst of 94 North Carolina counties and 117th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
79.5
3,797 customers
Customer-hours out
302K
Peak customers out
12,387
Outages ≥1,000 out
24
1 of 10,000+ · 746 total
Longest outage
2d 2h
began August 8, 2024
Rank in state
19th/94
117th of 2,990 US

Compared with NC, the US and 2023

Chatham County, NC average hours without power per customer compared with state and national averages, 2024Chatham County 79.5 hours, North Carolina average 66.1 hours, US average 12.6 hours, Chatham County, 2023 68.5 hoursChatham CountyChatham County79.5hNorth Carolina averageNorth Carolina avera…66.1hUS averageUS average12.6hChatham County, 2023Chatham County, 202368.5h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Chatham County, NC customer-hours without power by month, 2024Jan 35K, Feb 7,256, Mar 4,692, Apr 16K, May 23K, Jun 11K, Jul 37K, Aug 115K, Sep 31K, Oct 2,535, Nov 11K, Dec 8,696050k100k150k35KJan7,256Feb4,692Mar16KApr23KMay11KJun37KJul115KAug31KSep2,535Oct11KNov8,696Dec
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Customer-hours; August was the worst month.

Chatham County year over year

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Chatham County, NC: average hours without power per customer by year2015: 93.3h; 2016: 103.5h; 2017: 27.8h; 2018: 341.3h, coverage 82%; 2019: 33.2h, coverage 90%; 2020: 141.9h, coverage 91%; 2021: 36.6h, coverage 92%; 2022: 174.3h, coverage 92%; 2023: 68.5h; 2024: 79.5h; 2025: 96.4h01002003004000%50%100%93.3h2015103.5h201627.8h2017341.3h201833.2h2019141.9h202036.6h2021174.3h202268.5h202379.5h202496.4h2025
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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 Chatham County, 2024

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 8, 2024 05:00August 10, 2024 07:302d 2h12,38764K
2May 29, 2024 12:15May 29, 2024 22:009h 45m7,0142,148
3January 9, 2024 16:15January 10, 2024 23:301d 7h5,00031K
4August 3, 2024 18:45August 4, 2024 22:001d 3h3,88713K
5September 27, 2024 10:15September 28, 2024 04:3018h 15m3,83013K
6August 30, 2024 16:15September 1, 2024 04:451d 12h3,25024K
7August 18, 2024 20:30August 19, 2024 21:151d3,1898,138
8February 26, 2024 14:45February 27, 2024 03:4513h2,8613,508
9May 26, 2024 23:00May 28, 2024 01:451d 2h2,5258,567
10July 20, 2024 08:45July 21, 2024 00:3015h 45m2,1753,484

Outage episodes by size in 2024: 107 reached 100+ customers, 24 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 Chatham County reported on EIA Form 861 for 2024, 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)202417.2 hrs1.702.2 hrs1.22
Duke Energy Carolinas, LLC202478.6 hrs2.502.9 hrs1.26
Piedmont Electric Member Corp20246.6 hrs2.202.8 hrs1.50
Central Electric Membership Corp. - (NC)20247.4 hrs-2.5 hrs-
Randolph Electric Member Corp20243.7 hrs2.081.9 hrs1.37
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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 3,797 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. Chatham County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Chatham County, NC annual power outage report, 2024, 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/2024/north-carolina/chatham-county

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