massoutage

County annual report · FIPS 47069

2025 Hardeman County, TN Power Outage Report

In 2025, customers in Hardeman County, TN went without power for an average of 1.5 hours, a total of 19K customer-hours (Tennessee average 4.3 hours). That ranks 57th worst of 81 Tennessee counties and 2610th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
1.5
12,774 customers
Customer-hours out
19K
Peak customers out
1,482
Outages ≥1,000 out
2
0 of 10,000+ · 213 total
Longest outage
2d 5h
began May 6, 2025
Rank in state
57th/81
2610th of 3,000 US

Compared with TN, the US and 2024

Hardeman County, TN average hours without power per customer compared with state and national averages, 2025Hardeman County 1.5 hours, Tennessee average 4.3 hours, US average 5.9 hours, Hardeman County, 2024 1.7 hoursHardeman CountyHardeman County1.5hTennessee averageTennessee average4.3hUS averageUS average5.9hHardeman County, 2024Hardeman County, 20241.7h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Hardeman County, TN customer-hours without power by month, 2025Jan 224, Feb 82, Mar 401, Apr 5,810, May 1,513, Jun 1,856, Jul 2,260, Aug 2,850, Sep 1,123, Oct 1,192, Nov 72, Dec 1,75102k4k6k224Jan82Feb401Mar5,810Apr1,513May1,856Jun2,260Jul2,850Aug1,123Sep1,192Oct72Nov1,751Dec
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Customer-hours; April 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, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 8, 2025 19:00August 8, 2025 23:154h 15m1,4822,151
2April 3, 2025 04:00April 4, 2025 16:001d 12h1,3095,223
3July 4, 2025 00:15July 4, 2025 01:0045m962551
4June 3, 2025 16:30June 4, 2025 07:0014h 30m955848
5May 16, 2025 13:45May 16, 2025 17:003h 15m954484
6May 25, 2025 23:30May 26, 2025 05:005h 30m489732
7July 1, 2025 09:00July 1, 2025 12:003h435991
8December 1, 2025 05:30December 1, 2025 07:151h 45m425579
9December 1, 2025 08:45December 1, 2025 13:154h 30m4231,119
10June 19, 2025 06:45June 19, 2025 14:307h 45m385459

Outage episodes by size in 2025: 18 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 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southwest Tennessee E M C202311.7 hrs3.983.9 hrs2.67
Bolivar Energy Authority20245.6 hrs1.881.9 hrs1.10
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 n/a of Tennessee's customers in 2025; 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, 2025, 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/2025/tennessee/hardeman-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON