massoutage

County annual report · FIPS 47027

2025 Clay County, TN Power Outage Report

In 2025, customers in Clay County, TN went without power for an average of 8.8 hours, a total of 36K customer-hours (Tennessee average 4.3 hours). That ranks 12th worst of 81 Tennessee counties and 915th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
8.8
4,055 customers
Customer-hours out
36K
Peak customers out
2,884
Outages ≥1,000 out
5
0 of 10,000+ · 177 total
Longest outage
14h 30m
began March 4, 2025
Rank in state
12th/81
915th of 3,000 US

Compared with TN, the US and 2024

Clay County, TN average hours without power per customer compared with state and national averages, 2025Clay County 8.8 hours, Tennessee average 4.3 hours, US average 5.9 hours, Clay County, 2024 14.6 hoursClay CountyClay County8.8hTennessee averageTennessee average4.3hUS averageUS average5.9hClay County, 2024Clay County, 202414.6h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Clay County, TN customer-hours without power by month, 2025Jan 57, Feb 370, Mar 5,147, Apr 5,890, May 693, Jun 2,384, Jul 373, Aug 419, Sep 6,939, Oct 10K, Nov 824, Dec 2,40905k10k15k57Jan370Feb5,147Mar5,890Apr693May2,384Jun373Jul419Aug6,939Sep10KOct824Nov2,409Dec
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Customer-hours; October was the worst month.

Clay County year over year

CSVJSON
Clay County, TN: average hours without power per customer by year2015: 8.6h; 2016: 9.1h; 2017: 4.2h; 2018: 9.5h, coverage 55%; 2019: 15.1h, coverage 73%; 2020: 7.9h, coverage 73%; 2021: 12.2h, coverage 73%; 2022: 6.8h, coverage 75%; 2023: 13.3h; 2024: 14.6h; 2025: 8.8h051015200%50%100%8.6h20159.1h20164.2h20179.5h201815.1h20197.9h202012.2h20216.8h202213.3h202314.6h20248.8h2025
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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 Clay County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 26, 2025 05:15October 26, 2025 08:153h2,8848,652
2March 20, 2025 13:00March 20, 2025 14:001h1,7821,047
3March 28, 2025 13:45March 28, 2025 14:1530m1,703830
4September 10, 2025 20:15September 10, 2025 22:302h 15m1,5641,101
5April 27, 2025 06:30April 27, 2025 09:152h 45m1,2612,520
6December 30, 2025 09:30December 30, 2025 11:452h 15m9991,751
7October 27, 2025 15:30October 27, 2025 17:001h 30m946499
8April 5, 2025 23:15April 6, 2025 06:157h7071,919
9September 11, 2025 14:30September 11, 2025 19:305h6621,213
10April 29, 2025 20:45April 29, 2025 22:452h657297

Outage episodes by size in 2025: 32 reached 100+ customers, 5 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 Clay 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
Tri-County Elec Member Corp (TN)20246.4 hrs3.964.0 hrs3.19
Upper Cumberland E M C20224.3 hrs-2.2 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 n/a of Tennessee's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,055 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. Clay County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Clay 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/clay-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON