massoutage

County annual report · FIPS 13089

2020 DeKalb County, GA Power Outage Report

In 2020, customers in DeKalb County, GA went without power for an average of 25.1 hours, a total of 4.6M customer-hours (Georgia average 7.4 hours). That ranks 8th worst of 159 Georgia counties and 342nd of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
25.1
182,341 customers
Customer-hours out
4.6M
Peak customers out
139,779
Outages ≥1,000 out
86
6 of 10,000+ · 374 total
Longest outage
12d 18h
began July 28, 2020
Rank in state
8th/159
342nd of 3,019 US

Compared with GA, the US and 2019

DeKalb County, GA average hours without power per customer compared with state and national averages, 2020DeKalb County 25.1 hours, Georgia average 7.4 hours, US average 8.7 hours, DeKalb County, 2019 6.7 hoursDeKalb CountyDeKalb County25.1hGeorgia averageGeorgia average7.4hUS averageUS average8.7hDeKalb County, 2019DeKalb County, 20196.7h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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DeKalb County, GA customer-hours without power by month, 2020Jan 84K, Feb 72K, Mar 68K, Apr 84K, May 82K, Jun 105K, Jul 141K, Aug 217K, Sep 241K, Oct 3.2M, Nov 232K, Dec 61K01M2M3M4M84KJan72KFeb68KMar84KApr82KMay105KJun141KJul217KAug241KSep3.2MOct232KNov61KDec
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Customer-hours; October was the worst month.

DeKalb County year over year

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DeKalb County, GA: average hours without power per customer by year2015: 3.7h; 2016: 5.6h; 2017: 46.5h; 2018: 4.5h, coverage 90%; 2019: 6.7h, coverage 86%; 2020: 25.1h, coverage 88%; 2021: 6.5h, coverage 90%; 2022: 9.4h, coverage 91%; 2023: 14.6h; 2024: 13.0h; 2025: 9.3h02040600%50%100%3.7h20155.6h201646.5h20174.5h20186.7h201925.1h20206.5h20219.4h202214.6h202313.0h20249.3h2025
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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 DeKalb County, 2020

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
1October 29, 2020 03:30November 7, 2020 06:459d 3h139,7793.2M
2July 28, 2020 13:15August 10, 2020 07:1512d 18h21,152103K
3May 26, 2020 07:45May 29, 2020 02:452d 19h15,14113K
4November 21, 2020 11:15November 22, 2020 12:301d 1h14,20619K
5August 10, 2020 09:15August 12, 2020 06:151d 21h13,02549K
6September 16, 2020 01:00September 21, 2020 01:305d12,061172K
7March 31, 2020 08:45April 3, 2020 02:002d 17h9,76331K
8February 6, 2020 04:45February 9, 2020 03:302d 22h7,87737K
9October 14, 2020 11:00October 15, 2020 03:1516h 15m7,8763,018
10April 12, 2020 12:00April 15, 2020 01:452d 13h7,70229K

Outage episodes by size in 2020: 166 reached 100+ customers, 86 reached 1,000+ customers, 6 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 DeKalb County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Georgia Power Co20208.8 hrs1.922.4 hrs1.33
Walton Electric Member Corp20204.4 hrs2.111.8 hrs1.52
Snapping Shoals El Member Corp20202.6 hrs1.3283 min0.96
City of Norcross- (GA)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 88% of Georgia's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 182,341 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. DeKalb County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), DeKalb County, GA annual power outage report, 2020, 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/2020/georgia/dekalb-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON