massoutage

County annual report · FIPS 47143

2022 Rhea County, TN Power Outage Report

In 2022, customers in Rhea County, TN went without power for an average of 2.5 hours, a total of 42K customer-hours (Tennessee average 9.2 hours). That ranks 54th worst of 84 Tennessee counties and 2120th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
17,177 customers
Customer-hours out
42K
Peak customers out
1,868
Outages ≥1,000 out
8
0 of 10,000+ · 482 total
Longest outage
1d 22h
began January 16, 2022
Rank in state
54th/84
2120th of 2,976 US

Compared with TN, the US and 2021

Rhea County, TN average hours without power per customer compared with state and national averages, 2022Rhea County 2.5 hours, Tennessee average 9.2 hours, US average 8.3 hours, Rhea County, 2021 3.5 hoursRhea CountyRhea County2.5hTennessee averageTennessee average9.2hUS averageUS average8.3hRhea County, 2021Rhea County, 20213.5h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

CSVJSON
Rhea County, TN customer-hours without power by month, 2022Jan 1,217, Feb 1,241, Mar 6,608, Apr 821, May 1,039, Jun 3,660, Jul 2,584, Aug 4,718, Sep 1,571, Oct 288, Nov 2,789, Dec 16K05k10k15k20k1,217Jan1,241Feb6,608Mar821Apr1,039May3,660Jun2,584Jul4,718Aug1,571Sep288Oct2,789Nov16KDec
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Customer-hours; December was the worst month.

Rhea County year over year

CSVJSON
Rhea County, TN: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: 2.3h, coverage 73%; 2020: 5.6h, coverage 73%; 2021: 3.5h, coverage 73%; 2022: 2.5h, coverage 75%; 2023: 13.9h; 2024: 2.5h; 2025: 5.9h0510150%50%100%n/a2015n/a2016n/a2017n/a20182.3h20195.6h20203.5h20212.5h202213.9h20232.5h20245.9h2025
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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 Tennessee customers tracked each year.

Biggest outages in Rhea County, 2022

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 23, 2022 04:00December 24, 2022 22:151d 18h1,8689,391
2November 30, 2022 12:30December 1, 2022 03:3015h1,4102,456
3June 20, 2022 19:00June 21, 2022 04:459h 45m1,374699
4December 13, 2022 16:15December 13, 2022 16:4530m1,374348
5August 31, 2022 14:00August 31, 2022 14:1515m1,365341
6August 4, 2022 00:00August 4, 2022 07:457h 45m1,2923,739
7December 18, 2022 16:00December 18, 2022 23:007h1,1112,781
8April 22, 2022 12:15April 22, 2022 13:0045m1,110555
9March 31, 2022 02:00March 31, 2022 16:3014h 30m9842,360
10June 27, 2022 00:00June 27, 2022 02:302h 30m913915

Outage episodes by size in 2022: 25 reached 100+ customers, 8 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 Rhea County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Volunteer Electric Coop20228.7 hrs4.566.7 hrs4.09
City of Chattanooga - (TN)202173 min0.6059 min0.53
Sequachee Valley Electric Coop20225.2 hrs3.484.3 hrs3.19
City of Dayton - (TN)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 75% of Tennessee's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 17,177 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. Rhea County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Rhea County, TN annual power outage report, 2022, 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/2022/tennessee/rhea-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON