massoutage

County annual report · FIPS 13051

2017 Chatham County, GA Power Outage Report

In 2017, customers in Chatham County, GA went without power for an average of 23.4 hours, a total of 3.4M customer-hours (Georgia average 14.2 hours). That ranks 47th worst of 158 Georgia counties and 235th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
23.4
143,708 customers
Customer-hours out
3.4M
Peak customers out
76,043
Outages ≥1,000 out
48
1 of 10,000+ · 909 total
Longest outage
9d 2h
began September 10, 2017
Rank in state
47th/158
235th of 2,786 US

Compared with GA, the US and 2016

Chatham County, GA average hours without power per customer compared with state and national averages, 2017Chatham County 23.4 hours, Georgia average 14.2 hours, US average 7.4 hours, Chatham County, 2016 72.7 hoursChatham CountyChatham County23.4hGeorgia averageGeorgia average14.2hUS averageUS average7.4hChatham County, 2016Chatham County, 201672.7h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Chatham County, GA customer-hours without power by month, 2017Jan 43K, Feb 20K, Mar 11K, Apr 20K, May 40K, Jun 15K, Jul 61K, Aug 46K, Sep 3.1M, Oct 20K, Nov 4,959, Dec 19K01M2M3M4M43KJan20KFeb11KMar20KApr40KMay15KJun61KJul46KAug3.1MSep20KOct4,959Nov19KDec
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Customer-hours; September 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, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 10, 2017 05:45September 19, 2017 08:309d 2h76,0433.0M
2August 8, 2017 13:45August 10, 2017 18:452d 5h5,21011K
3January 7, 2017 06:30January 7, 2017 22:3016h4,8203,363
4May 23, 2017 21:00May 27, 2017 01:153d 4h4,14512K
5September 27, 2017 11:45September 28, 2017 00:0012h 15m3,8481,677
6July 8, 2017 17:30July 10, 2017 03:001d 9h3,6816,505
7September 2, 2017 11:30September 3, 2017 04:0016h 30m3,6773,008
8April 24, 2017 09:00April 24, 2017 23:3014h 30m3,4643,041
9May 8, 2017 00:30May 8, 2017 04:304h3,3913,197
10July 2, 2017 06:45July 4, 2017 08:452d 2h3,3779,368

Outage episodes by size in 2017: 163 reached 100+ customers, 48 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 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Georgia Power Co201718.4 hrs2.191.9 hrs1.16
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 2017; 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, 2017, 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/2017/georgia/chatham-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON