massoutage

County annual report · FIPS 47177

2025 Warren County, TN Power Outage Report

In 2025, customers in Warren County, TN went without power for an average of 0.0 hours, a total of 22 customer-hours (Tennessee average 4.3 hours). That ranks 81st worst of 81 Tennessee counties and 2995th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
23,916 customers
Customer-hours out
22
Peak customers out
6
Outages ≥1,000 out
0
0 of 10,000+ · 11 total
Longest outage
4h 30m
began May 18, 2025
Rank in state
81st/81
2995th of 3,000 US

Compared with TN, the US and 2024

Warren County, TN average hours without power per customer compared with state and national averages, 2025Warren County 0.0 hours, Tennessee average 4.3 hours, US average 5.9 hours, Warren County, 2024 0.0 hoursWarren CountyWarren County0.0hTennessee averageTennessee average4.3hUS averageUS average5.9hWarren County, 2024Warren County, 20240.0h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Warren County, TN customer-hours without power by month, 2025Jan 0, Feb 0, Mar 2, Apr 0, May 8, Jun 2, Jul 0, Aug 0, Sep 0, Oct 9, Nov 0, Dec 102.557.5100Jan0Feb2Mar0Apr8May2Jun0Jul0Aug0Sep9Oct0Nov1Dec
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Customer-hours; October was the worst month.

Warren County year over year

CSVJSON
Warren County, TN: average hours without power per customer by year2015: 0.0h; 2016: 0.0h; 2017: 0.0h; 2018: 0.0h, coverage 55%; 2019: 0.0h, coverage 73%; 2020: 0.0h, coverage 73%; 2021: 0.0h, coverage 73%; 2022: 0.0h, coverage 75%; 2023: 0.0h; 2024: 0.0h; 2025: 0.0h00000%50%100%0.0h20150.0h20160.0h20170.0h20180.0h20190.0h20200.0h20210.0h20220.0h20230.0h20240.0h2025
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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 Warren County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 27, 2025 15:30May 27, 2025 16:0030m63
2June 5, 2025 11:00June 5, 2025 11:1515m62
3October 3, 2025 13:15October 3, 2025 15:452h 30m38
4May 20, 2025 23:45May 21, 2025 00:0015m21
5March 16, 2025 03:15March 16, 2025 05:152h12
6May 18, 2025 17:00May 18, 2025 21:304h 30m15
7June 29, 2025 20:30June 29, 2025 21:1545m11
8October 10, 2025 21:15October 10, 2025 22:0045m11
9October 22, 2025 15:15October 22, 2025 15:4530m11
10December 4, 2025 15:15December 4, 2025 15:3015m10

Outage episodes by size in 2025: 0 reached 100+ customers, 0 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 Warren 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
Middle Tennessee E M C202449 min0.9342 min0.88
McMinnville Electric System202431 min0.2316 min0.16
Caney Fork Electric Coop, Inc-----

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 ÷ 23,916 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. Warren County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Warren 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/warren-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON