massoutage

County annual report · FIPS 13163

2021 Jefferson County, GA Power Outage Report

In 2021, customers in Jefferson County, GA went without power for an average of 2.4 hours, a total of 21K customer-hours (Georgia average 2.4 hours). That ranks 91st worst of 159 Georgia counties and 2086th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
8,747 customers
Customer-hours out
21K
Peak customers out
1,095
Outages ≥1,000 out
1
0 of 10,000+ · 566 total
Longest outage
21h 15m
began June 7, 2021
Rank in state
91st/159
2086th of 2,974 US

Compared with GA, the US and 2020

Jefferson County, GA average hours without power per customer compared with state and national averages, 2021Jefferson County 2.4 hours, Georgia average 2.4 hours, US average 8.9 hours, Jefferson County, 2020 3.8 hoursJefferson CountyJefferson County2.4hGeorgia averageGeorgia average2.4hUS averageUS average8.9hJefferson County, 2020Jefferson County, 20…3.8h
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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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Jefferson County, GA customer-hours without power by month, 2021Jan 978, Feb 582, Mar 941, Apr 717, May 1,492, Jun 5,758, Jul 3,227, Aug 3,498, Sep 1,297, Oct 782, Nov 413, Dec 88502k4k6k978Jan582Feb941Mar717Apr1,492May5,758Jun3,227Jul3,498Aug1,297Sep782Oct413Nov885Dec
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Customer-hours; June was the worst month.

Jefferson County year over year

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Jefferson County, GA: average hours without power per customer by year2015: 2.7h; 2016: 3.8h; 2017: 18.9h; 2018: 9.8h, coverage 90%; 2019: 2.2h, coverage 86%; 2020: 3.8h, coverage 88%; 2021: 2.4h, coverage 90%; 2022: 5.3h, coverage 91%; 2023: 4.2h; 2024: 250.4h; 2025: 4.7h01002003000%50%100%2.7h20153.8h201618.9h20179.8h20182.2h20193.8h20202.4h20215.3h20224.2h2023250.4h20244.7h2025
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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 Jefferson County, 2021

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
1August 31, 2021 17:30September 1, 2021 03:009h 30m1,0951,315
2June 7, 2021 20:15June 8, 2021 17:3021h 15m6382,737
3July 8, 2021 04:45July 8, 2021 12:458h6111,151
4March 1, 2021 14:45March 1, 2021 16:301h 45m553280
5June 21, 2021 01:15June 21, 2021 20:0018h 45m467947
6August 18, 2021 02:30August 18, 2021 04:302h467934
7June 12, 2021 20:45June 13, 2021 00:303h 45m344865
8May 17, 2021 21:45May 18, 2021 03:155h 30m342379
9July 21, 2021 14:00July 21, 2021 14:4545m342256
10July 16, 2021 07:45July 16, 2021 09:301h 45m31485

Outage episodes by size in 2021: 21 reached 100+ customers, 1 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 Jefferson County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Georgia Power Co20212.4 hrs1.282.4 hrs1.25
Jefferson Electric Member Corp202156 min0.8456 min0.84
Washington Elec Member Corp20214.0 hrs-4.0 hrs-

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 ÷ 8,747 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. Jefferson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jefferson 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/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON