massoutage

County annual report · FIPS 47023

2019 Chester County, TN Power Outage Report

In 2019, customers in Chester County, TN went without power for an average of 4.7 hours, a total of 27K customer-hours (Tennessee average 2.7 hours). That ranks 15th worst of 86 Tennessee counties and 1159th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
4.7
5,853 customers
Customer-hours out
27K
Peak customers out
1,794
Outages ≥1,000 out
2
0 of 10,000+ · 267 total
Longest outage
2d 8h
began February 16, 2019
Rank in state
15th/86
1159th of 2,945 US

Compared with TN, the US and 2018

Chester County, TN average hours without power per customer compared with state and national averages, 2019Chester County 4.7 hours, Tennessee average 2.7 hours, US average 4.7 hours, Chester County, 2018 4.2 hoursChester CountyChester County4.7hTennessee averageTennessee average2.7hUS averageUS average4.7hChester County, 2018Chester County, 20184.2h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Chester County, TN customer-hours without power by month, 2019Jan 96, Feb 2,797, Mar 1,361, Apr 4,300, May 350, Jun 1,416, Jul 333, Aug 454, Sep 3,199, Oct 1,424, Nov 11K, Dec 1,11005k10k15k96Jan2,797Feb1,361Mar4,300Apr350May1,416Jun333Jul454Aug3,199Sep1,424Oct11KNov1,110Dec
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Customer-hours; November was the worst month.

Chester County year over year

CSVJSON
Chester County, TN: average hours without power per customer by year2015: no data; 2016: no data; 2017: 11.2h; 2018: 4.2h, coverage 55%; 2019: 4.7h, coverage 73%; 2020: 4.4h, coverage 73%; 2021: 7.5h, coverage 73%; 2022: 5.0h, coverage 75%; 2023: 10.2h; 2024: 4.8h; 2025: 7.1h0510150%50%100%n/a2015n/a201611.2h20174.2h20184.7h20194.4h20207.5h20215.0h202210.2h20234.8h20247.1h2025
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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 Chester County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 25, 2019 00:30September 25, 2019 12:1511h 45m1,7943,065
2October 19, 2019 15:00October 19, 2019 15:4545m1,241931
3March 13, 2019 21:45March 13, 2019 22:451h955895
4February 16, 2019 05:00February 18, 2019 13:302d 8h7852,021
5April 29, 2019 16:45April 29, 2019 18:151h 30m7761,113
6December 28, 2019 16:00December 28, 2019 18:002h6031,056
7June 22, 2019 00:30June 22, 2019 04:454h 15m591891
8April 14, 2019 04:00April 14, 2019 08:004h5632,252
9April 15, 2019 13:15April 15, 2019 19:005h 45m563866
10February 20, 2019 21:00February 20, 2019 22:001h487244

Outage episodes by size in 2019: 17 reached 100+ customers, 2 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 Chester 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
Southwest Tennessee E M C-----
Pickwick Electric Coop-----

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 ÷ 5,853 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. Chester County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Chester 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/). https://massoutage.com/reports/2019/tennessee/chester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON