massoutage

County annual report · FIPS 47069

2021 Hardeman County, TN Power Outage Report

In 2021, customers in Hardeman County, TN went without power for an average of 0.8 hours, a total of 10K customer-hours (Tennessee average 3.7 hours). That ranks 68th worst of 84 Tennessee counties and 2736th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
0.8
12,774 customers
Customer-hours out
10K
Peak customers out
1,451
Outages ≥1,000 out
2
0 of 10,000+ · 164 total
Longest outage
1d 8h
began May 3, 2021
Rank in state
68th/84
2736th of 2,974 US

Compared with TN, the US and 2020

Hardeman County, TN average hours without power per customer compared with state and national averages, 2021Hardeman County 0.8 hours, Tennessee average 3.7 hours, US average 8.9 hours, Hardeman County, 2020 1.1 hoursHardeman CountyHardeman County0.8hTennessee averageTennessee average3.7hUS averageUS average8.9hHardeman County, 2020Hardeman County, 20201.1h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Hardeman County, TN customer-hours without power by month, 2021Jan 348, Feb 26, Mar 566, Apr 847, May 2,883, Jun 1,087, Jul 917, Aug 1,622, Sep 430, Oct 46, Nov 779, Dec 62201k2k3k348Jan26Feb566Mar847Apr2,883May1,087Jun917Jul1,622Aug430Sep46Oct779Nov622Dec
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Customer-hours; May was the worst month.

Hardeman County year over year

CSVJSON
Hardeman County, TN: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.3h; 2018: 0.1h, coverage 55%; 2019: 0.5h, coverage 73%; 2020: 1.1h, coverage 73%; 2021: 0.8h, coverage 73%; 2022: 1.7h, coverage 75%; 2023: 3.5h; 2024: 1.7h; 2025: 1.5h012340%50%100%n/a2015n/a20160.3h20170.1h20180.5h20191.1h20200.8h20211.7h20223.5h20231.7h20241.5h2025
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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 Hardeman County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 6, 2021 10:15July 6, 2021 10:4530m1,451726
2June 1, 2021 22:15June 1, 2021 23:0045m1,449958
3August 13, 2021 18:00August 13, 2021 20:152h 15m9261,393
4January 13, 2021 12:30January 13, 2021 14:151h 45m380300
5April 21, 2021 00:45April 21, 2021 02:001h 15m377471
6May 6, 2021 21:00May 7, 2021 07:1510h 15m2411,636
7December 11, 2021 07:30December 11, 2021 09:452h 15m190428
8November 8, 2021 18:30November 8, 2021 18:4515m18947
9May 9, 2021 05:30May 9, 2021 07:302h159318
10November 14, 2021 22:30November 15, 2021 01:303h139382

Outage episodes by size in 2021: 11 reached 100+ customers, 2 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 Hardeman 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
Bolivar Energy Authority20214.2 hrs1.3350 min0.81
Southwest Tennessee E M C-----
Chickasaw Electric Coop, Inc-----
Pickwick Electric Coop-----

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 ÷ 12,774 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. Hardeman County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Hardeman 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/hardeman-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON