massoutage

County annual report · FIPS 13051

2023 Chatham County, GA Power Outage Report

In 2023, customers in Chatham County, GA went without power for an average of 8.5 hours, a total of 1.2M customer-hours (Georgia average 6.6 hours). That ranks 64th worst of 159 Georgia counties and 971st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
8.5
143,708 customers
Customer-hours out
1.2M
Peak customers out
37,181
Outages ≥1,000 out
47
3 of 10,000+ · 547 total
Longest outage
11d 8h
began March 22, 2023
Rank in state
64th/159
971st of 2,977 US

Compared with GA, the US and 2022

Chatham County, GA average hours without power per customer compared with state and national averages, 2023Chatham County 8.5 hours, Georgia average 6.6 hours, US average 7.1 hours, Chatham County, 2022 3.3 hoursChatham CountyChatham County8.5hGeorgia averageGeorgia average6.6hUS averageUS average7.1hChatham County, 2022Chatham County, 20223.3h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Chatham County, GA customer-hours without power by month, 2023Jan 26K, Feb 12K, Mar 16K, Apr 98K, May 44K, Jun 53K, Jul 78K, Aug 709K, Sep 84K, Oct 24K, Nov 16K, Dec 64K0200k400k600k800k26KJan12KFeb16KMar98KApr44KMay53KJun78KJul709KAug84KSep24KOct16KNov64KDec
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Customer-hours; August was the worst month.

Chatham County year over year

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Chatham County, GA: average hours without power per customer by year2015: 3.4h; 2016: 72.7h; 2017: 23.4h; 2018: 2.7h, coverage 90%; 2019: 3.5h, coverage 86%; 2020: 2.9h, coverage 88%; 2021: 3.1h, coverage 90%; 2022: 3.3h, coverage 91%; 2023: 8.5h; 2024: 70.1h; 2025: 4.1h0204060800%50%100%3.4h201572.7h201623.4h20172.7h20183.5h20192.9h20203.1h20213.3h20228.5h202370.1h20244.1h2025
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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 Georgia customers tracked each year.

Biggest outages in Chatham 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 30, 2023 05:45September 2, 2023 17:303d 11h37,181653K
2March 22, 2023 12:15April 2, 2023 20:4511d 8h12,8019,588
3August 6, 2023 23:30August 12, 2023 09:155d 9h12,65388K
4April 26, 2023 01:30April 27, 2023 02:451d 1h6,23940K
5December 17, 2023 00:45December 18, 2023 22:151d 21h5,73336K
6June 7, 2023 11:30June 10, 2023 09:152d 21h4,65013K
7July 31, 2023 00:45August 1, 2023 07:001d 6h4,4929,655
8August 14, 2023 01:00August 18, 2023 04:454d 3h4,32014K
9April 29, 2023 15:45May 3, 2023 03:153d 11h3,93143K
10June 22, 2023 12:00June 24, 2023 07:151d 19h3,5793,584

Outage episodes by size in 2023: 148 reached 100+ customers, 47 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 Chatham 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
Georgia Power Co20236.1 hrs1.752.3 hrs1.24
Canoochee Electric Member Corp-----

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 Georgia's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 143,708 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, GA 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/georgia/chatham-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON