massoutage

County annual report · FIPS 47001

2019 Anderson County, TN Power Outage Report

In 2019, customers in Anderson County, TN went without power for an average of 1.3 hours, a total of 57K customer-hours (Tennessee average 2.7 hours). That ranks 52nd worst of 86 Tennessee counties and 2360th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
1.3
42,752 customers
Customer-hours out
57K
Peak customers out
5,192
Outages ≥1,000 out
11
0 of 10,000+ · 619 total
Longest outage
1d 14h
began October 31, 2019
Rank in state
52nd/86
2360th of 2,945 US

Compared with TN, the US and 2018

Anderson County, TN average hours without power per customer compared with state and national averages, 2019Anderson County 1.3 hours, Tennessee average 2.7 hours, US average 4.7 hours, Anderson County, 2018 0.7 hoursAnderson CountyAnderson County1.3hTennessee averageTennessee average2.7hUS averageUS average4.7hAnderson County, 2018Anderson County, 20180.7h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Anderson County, TN customer-hours without power by month, 2019Jan 1,553, Feb 3,984, Mar 929, Apr 4,611, May 5,471, Jun 12K, Jul 3,032, Aug 7,670, Sep 2,034, Oct 11K, Nov 2,214, Dec 1,93005k10k15k1,553Jan3,984Feb929Mar4,611Apr5,471May12KJun3,032Jul7,670Aug2,034Sep11KOct2,214Nov1,930Dec
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Customer-hours; June was the worst month.

Anderson County year over year

CSVJSON
Anderson County, TN: average hours without power per customer by year2015: 0.9h; 2016: 0.9h; 2017: 0.8h; 2018: 0.7h, coverage 55%; 2019: 1.3h, coverage 73%; 2020: 0.9h, coverage 73%; 2021: 1.0h, coverage 73%; 2022: 3.7h, coverage 75%; 2023: 1.3h; 2024: 1.2h; 2025: 1.3h012340%50%100%0.9h20150.9h20160.8h20170.7h20181.3h20190.9h20201.0h20213.7h20221.3h20231.2h20241.3h2025
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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 Anderson County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 28, 2019 12:30August 28, 2019 12:4515m5,1921,298
2August 21, 2019 19:15August 21, 2019 20:0045m4,2861,277
3October 22, 2019 08:15October 22, 2019 15:006h 45m3,8071,133
4May 17, 2019 04:15May 17, 2019 08:154h3,5132,459
5August 16, 2019 03:45August 16, 2019 05:301h 45m2,7012,936
6June 8, 2019 17:15June 8, 2019 21:304h 15m2,301633
7April 19, 2019 05:30April 19, 2019 13:458h 15m2,042959
8October 31, 2019 10:15November 2, 2019 00:151d 14h1,95111K
9April 9, 2019 13:15April 9, 2019 13:3015m1,654414
10September 3, 2019 18:45September 3, 2019 20:452h1,450841

Outage episodes by size in 2019: 55 reached 100+ customers, 11 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 Anderson County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Knoxville Utilities Board20183.5 hrs1.842.1 hrs1.49
City of Clinton - (TN)201877 min1.5177 min1.51
City of Oak Ridge-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 73% of Tennessee's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 42,752 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. Anderson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Anderson County, TN annual power outage report, 2019, 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/2019/tennessee/anderson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON