massoutage

County annual report · FIPS 47139

2015 Polk County, TN Power Outage Report

In 2015, customers in Polk County, TN went without power for an average of 0.0 hours, a total of 1 customer-hours (Tennessee average 2.4 hours). That ranks 49th worst of 50 Tennessee counties and 2470th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
9,762 customers
Customer-hours out
1
Peak customers out
1
Outages ≥1,000 out
0
0 of 10,000+ · 2 total
Longest outage
1h
began December 14, 2015
Rank in state
49th/50
2470th of 2,484 US

Compared with TN, the US

Polk County, TN average hours without power per customer compared with state and national averages, 2015Polk County 0.0 hours, Tennessee average 2.4 hours, US average 2.9 hoursPolk CountyPolk County0.0hTennessee averageTennessee average2.4hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
Polk County, TN customer-hours without power by month, 2015Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 0, Dec 100.30.50.810Jan0Feb0Mar0Apr0May0Jun0Jul0Aug0Sep0Oct0Nov1Dec
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Customer-hours; December was the worst month.

Polk County year over year

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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, 2015

The 2 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 1, 2015 13:45April 1, 2015 14:0015m10
2December 14, 2015 16:00December 14, 2015 17:001h11

Outage episodes by size in 2015: 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 Polk County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Fort Loudoun Electric Coop201536.0 hrs4.616.8 hrs3.55
Volunteer Electric Coop-----
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 2015; 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, 2015, 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/2015/tennessee/polk-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON
Polk County by year:2025202420232022202120202019201820172016
Live outages in Polk County2015 Tennessee report2015 US report