massoutage

County annual report · FIPS 47123

2021 Monroe County, TN Power Outage Report

In 2021, customers in Monroe County, TN went without power for an average of 3.3 hours, a total of 110K customer-hours (Tennessee average 3.7 hours). That ranks 38th worst of 84 Tennessee counties and 1728th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
32,868 customers
Customer-hours out
110K
Peak customers out
4,768
Outages ≥1,000 out
9
0 of 10,000+ · 727 total
Longest outage
1d 11h
began December 11, 2021
Rank in state
38th/84
1728th of 2,974 US

Compared with TN, the US and 2020

Monroe County, TN average hours without power per customer compared with state and national averages, 2021Monroe County 3.3 hours, Tennessee average 3.7 hours, US average 8.9 hours, Monroe County, 2020 4.3 hoursMonroe CountyMonroe County3.3hTennessee averageTennessee average3.7hUS averageUS average8.9hMonroe County, 2020Monroe County, 20204.3h
Use the arrow keys to read values.
Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Monroe County, TN customer-hours without power by month, 2021Jan 5,363, Feb 6,282, Mar 6,798, Apr 3,119, May 8,588, Jun 8,704, Jul 10K, Aug 11K, Sep 7,215, Oct 14K, Nov 6,971, Dec 22K010k20k30k5,363Jan6,282Feb6,798Mar3,119Apr8,588May8,704Jun10KJul11KAug7,215Sep14KOct6,971Nov22KDec
Use the arrow keys to read values.
Customer-hours; December was the worst month.

Monroe County year over year

CSVJSON
Monroe County, TN: average hours without power per customer by year2015: 15.4h; 2016: 2.9h; 2017: 4.2h; 2018: 2.8h, coverage 55%; 2019: 2.8h, coverage 73%; 2020: 4.3h, coverage 73%; 2021: 3.3h, coverage 73%; 2022: 7.5h, coverage 75%; 2023: 6.1h; 2024: 5.5h; 2025: 7.1h051015200%50%100%15.4h20152.9h20164.2h20172.8h20182.8h20194.3h20203.3h20217.5h20226.1h20235.5h20247.1h2025
Use the arrow keys to read values.
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 Monroe County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 1, 2021 08:00January 1, 2021 09:151h 15m4,7682,376
2July 18, 2021 02:30July 18, 2021 08:306h2,5746,998
3December 11, 2021 09:30December 12, 2021 20:301d 11h2,40015K
4October 18, 2021 00:45October 18, 2021 04:454h1,6223,374
5September 28, 2021 07:45September 28, 2021 21:4514h1,434586
6November 1, 2021 12:30November 2, 2021 11:4523h 15m1,3852,442
7May 3, 2021 16:45May 3, 2021 18:452h1,2921,343
8October 28, 2021 11:30October 28, 2021 20:309h1,1352,108
9June 15, 2021 20:45June 15, 2021 22:001h 15m1,026273
10March 27, 2021 15:45March 27, 2021 21:456h9521,279

Outage episodes by size in 2021: 81 reached 100+ customers, 9 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 Monroe 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
Fort Loudoun Electric Coop20214.5 hrs2.564.5 hrs2.56
City of Sweetwater-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 73% of Tennessee's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 32,868 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. Monroe County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Monroe County, TN 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/tennessee/monroe-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON