massoutage

County annual report · FIPS 13117

2021 Forsyth County, GA Power Outage Report

In 2021, customers in Forsyth County, GA went without power for an average of 0.5 hours, a total of 70K customer-hours (Georgia average 2.4 hours). That ranks 152nd worst of 159 Georgia counties and 2802nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
134,644 customers
Customer-hours out
70K
Peak customers out
9,828
Outages ≥1,000 out
17
0 of 10,000+ · 902 total
Longest outage
22h 30m
began May 9, 2021
Rank in state
152nd/159
2802nd of 2,974 US

Compared with GA, the US and 2020

Forsyth County, GA average hours without power per customer compared with state and national averages, 2021Forsyth County 0.5 hours, Georgia average 2.4 hours, US average 8.9 hours, Forsyth County, 2020 2.8 hoursForsyth CountyForsyth County0.5hGeorgia averageGeorgia average2.4hUS averageUS average8.9hForsyth County, 2020Forsyth County, 20202.8h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Forsyth County, GA customer-hours without power by month, 2021Jan 2,948, Feb 4,434, Mar 5,812, Apr 9,208, May 8,024, Jun 6,482, Jul 8,296, Aug 11K, Sep 1,468, Oct 4,451, Nov 5,247, Dec 2,16105k10k15k2,948Jan4,434Feb5,812Mar9,208Apr8,024May6,482Jun8,296Jul11KAug1,468Sep4,451Oct5,247Nov2,161Dec
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Customer-hours; August was the worst month.

Forsyth County year over year

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Forsyth County, GA: average hours without power per customer by year2015: 0.7h; 2016: 0.1h; 2017: 1.4h; 2018: 0.7h, coverage 90%; 2019: 0.8h, coverage 86%; 2020: 2.8h, coverage 88%; 2021: 0.5h, coverage 90%; 2022: 0.9h, coverage 91%; 2023: 5.1h; 2024: 0.8h; 2025: 1.1h02460%50%100%0.7h20150.1h20161.4h20170.7h20180.8h20192.8h20200.5h20210.9h20225.1h20230.8h20241.1h2025
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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 Forsyth County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 24, 2021 12:45April 25, 2021 07:0018h 15m9,8283,724
2June 30, 2021 11:45July 1, 2021 00:4513h3,9811,099
3May 4, 2021 11:30May 4, 2021 19:308h2,901951
4April 3, 2021 16:15April 3, 2021 16:4530m1,984502
5March 20, 2021 13:00March 20, 2021 13:1515m1,980495
6March 10, 2021 22:45March 10, 2021 23:1530m1,979990
7March 5, 2021 13:30March 5, 2021 21:007h 30m1,9761,049
8July 25, 2021 03:15July 25, 2021 08:305h 15m1,820727
9November 5, 2021 17:00November 6, 2021 01:008h1,7021,284
10May 4, 2021 02:30May 4, 2021 08:005h 30m1,6901,746

Outage episodes by size in 2021: 73 reached 100+ customers, 17 reached 1,000+ customers, 0 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 Forsyth County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Georgia Power Co20212.4 hrs1.282.4 hrs1.25
Amicalola Electric Member Corp20218.4 hrs3.548.4 hrs3.54
Sawnee Electric Membership Corporation202139 min0.7939 min0.79
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 90% of Georgia's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 134,644 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. Forsyth County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Forsyth County, GA annual power outage report, 2021, 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/2021/georgia/forsyth-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON