massoutage

County annual report · FIPS 47023

2024 Chester County, TN Power Outage Report

In 2024, customers in Chester County, TN went without power for an average of 4.8 hours, a total of 28K customer-hours (Tennessee average 4.8 hours). That ranks 33rd worst of 84 Tennessee counties and 1652nd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
4.8
5,853 customers
Customer-hours out
28K
Peak customers out
1,264
Outages ≥1,000 out
2
0 of 10,000+ · 502 total
Longest outage
3d 22h
began March 28, 2024
Rank in state
33rd/84
1652nd of 2,990 US

Compared with TN, the US and 2023

Chester County, TN average hours without power per customer compared with state and national averages, 2024Chester County 4.8 hours, Tennessee average 4.8 hours, US average 12.6 hours, Chester County, 2023 10.2 hoursChester CountyChester County4.8hTennessee averageTennessee average4.8hUS averageUS average12.6hChester County, 2023Chester County, 202310.2h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Chester County, TN customer-hours without power by month, 2024Jan 809, Feb 879, Mar 1,007, Apr 8,834, May 6,169, Jun 1,280, Jul 981, Aug 911, Sep 1,502, Oct 5,200, Nov 185, Dec 44902.5k5k7.5k10k809Jan879Feb1,007Mar8,834Apr6,169May1,280Jun981Jul911Aug1,502Sep5,200Oct185Nov449Dec
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Customer-hours; April 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, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 10, 2024 21:15April 10, 2024 21:3015m1,264316
2April 4, 2024 06:30April 4, 2024 12:306h1,2634,740
3May 27, 2024 06:15May 27, 2024 18:4512h 30m9654,795
4April 19, 2024 08:15April 19, 2024 11:303h 15m8681,744
5October 26, 2024 11:30October 26, 2024 15:304h7793,116
6July 25, 2024 13:30July 25, 2024 13:4515m773193
7January 4, 2024 14:45January 4, 2024 16:301h 45m768194
8October 6, 2024 07:45October 6, 2024 09:001h 15m767959
9September 9, 2024 20:00September 9, 2024 20:4545m766384
10March 15, 2024 19:45March 15, 2024 23:003h 15m596650

Outage episodes by size in 2024: 24 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 2024, 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 C202311.7 hrs3.983.9 hrs2.67
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 n/a of Tennessee's customers in 2024; 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, 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/chester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON