massoutage

County annual report · FIPS 47139

2024 Polk County, TN Power Outage Report

In 2024, customers in Polk County, TN went without power for an average of 13.2 hours, a total of 129K customer-hours (Tennessee average 4.8 hours). That ranks 10th worst of 84 Tennessee counties and 733rd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
13.2
9,762 customers
Customer-hours out
129K
Peak customers out
4,533
Outages ≥1,000 out
4
0 of 10,000+ · 478 total
Longest outage
2d 13h
began May 9, 2024
Rank in state
10th/84
733rd of 2,990 US

Compared with TN, the US and 2023

Polk County, TN average hours without power per customer compared with state and national averages, 2024Polk County 13.2 hours, Tennessee average 4.8 hours, US average 12.6 hours, Polk County, 2023 18.4 hoursPolk CountyPolk County13.2hTennessee averageTennessee average4.8hUS averageUS average12.6hPolk County, 2023Polk County, 202318.4h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Polk County, TN customer-hours without power by month, 2024Jan 15K, Feb 661, Mar 3,009, Apr 332, May 53K, Jun 2,719, Jul 40K, Aug 7,832, Sep 2,125, Oct 1,593, Nov 1,577, Dec 1,192020k40k60k15KJan661Feb3,009Mar332Apr53KMay2,719Jun40KJul7,832Aug2,125Sep1,593Oct1,577Nov1,192Dec
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Customer-hours; May was the worst month.

Polk County year over year

CSVJSON
Polk County, TN: average hours without power per customer by year2015: 0.0h; 2016: 0.0h; 2017: 0.0h; 2018: 0.0h, coverage 55%; 2019: 3.4h, coverage 73%; 2020: 10.7h, coverage 73%; 2021: 8.0h, coverage 73%; 2022: 10.8h, coverage 75%; 2023: 18.4h; 2024: 13.2h; 2025: 8.3h051015200%50%100%0.0h20150.0h20160.0h20170.0h20183.4h201910.7h20208.0h202110.8h202218.4h202313.2h20248.3h2025
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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 Polk County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 30, 2024 22:15August 1, 2024 04:151d 6h4,53335K
2May 9, 2024 10:30May 11, 2024 23:302d 13h2,64245K
3July 29, 2024 17:00July 29, 2024 19:152h 15m2,1373,188
4May 6, 2024 17:30May 6, 2024 18:1545m1,408352
5January 12, 2024 14:30January 14, 2024 10:001d 19h9247,188
6January 16, 2024 07:45January 16, 2024 13:005h 15m7383,142
7August 6, 2024 20:00August 6, 2024 23:303h 30m6791,021
8August 11, 2024 12:15August 11, 2024 14:152h678853
9January 17, 2024 08:00January 17, 2024 21:3013h 30m5652,810
10May 9, 2024 02:45May 9, 2024 07:304h 45m512579

Outage episodes by size in 2024: 44 reached 100+ customers, 4 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 Polk County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Volunteer Electric Coop202411.4 hrs5.807.3 hrs5.02
Fort Loudoun Electric Coop20247.9 hrs2.856.4 hrs2.60
Tri-State Electric Member Corp-----

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,762 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. Polk County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Polk County, TN annual power outage report, 2024, 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/2024/tennessee/polk-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON