massoutage

County annual report · FIPS 13051

2015 Chatham County, GA Power Outage Report

In 2015, customers in Chatham County, GA went without power for an average of 3.4 hours, a total of 491K customer-hours (Georgia average 1.8 hours). That ranks 20th worst of 157 Georgia counties and 816th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
143,708 customers
Customer-hours out
491K
Peak customers out
18,135
Outages ≥1,000 out
46
1 of 10,000+ · 961 total
Longest outage
5d
began September 4, 2015
Rank in state
20th/157
816th of 2,484 US

Compared with GA, the US

Chatham County, GA average hours without power per customer compared with state and national averages, 2015Chatham County 3.4 hours, Georgia average 1.8 hours, US average 2.9 hoursChatham CountyChatham County3.4hGeorgia averageGeorgia average1.8hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Chatham County, GA customer-hours without power by month, 2015Jan 20K, Feb 12K, Mar 12K, Apr 187K, May 22K, Jun 50K, Jul 80K, Aug 52K, Sep 20K, Oct 20K, Nov 7,578, Dec 7,802050k100k150k200k20KJan12KFeb12KMar187KApr22KMay50KJun80KJul52KAug20KSep20KOct7,578Nov7,802Dec
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Customer-hours; April 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, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 25, 2015 15:45April 29, 2015 23:454d 8h18,135176K
2August 22, 2015 17:45August 24, 2015 10:451d 17h6,54324K
3July 4, 2015 21:00July 6, 2015 08:151d 11h4,88619K
4July 23, 2015 11:45July 26, 2015 00:002d 12h4,80626K
5July 15, 2015 11:30July 16, 2015 11:1523h 45m4,53111K
6July 22, 2015 01:00July 22, 2015 04:003h4,1243,113
7May 7, 2015 10:00May 7, 2015 22:3012h 30m3,0395,708
8June 22, 2015 19:15June 24, 2015 01:001d 5h2,72312K
9May 6, 2015 12:15May 7, 2015 02:1514h2,6521,935
10September 17, 2015 14:15September 18, 2015 00:3010h 15m2,536784

Outage episodes by size in 2015: 150 reached 100+ customers, 46 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 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Georgia Power Co20152.9 hrs1.501.9 hrs1.30
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 2015; 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, 2015, 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/2015/georgia/chatham-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON