massoutage

County annual report · FIPS 48419

2020 Shelby County, TX Power Outage Report

In 2020, customers in Shelby County, TX went without power for an average of 10.7 hours, a total of 155K customer-hours (Texas average 5.3 hours). That ranks 100th worst of 254 Texas counties and 745th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
10.7
14,484 customers
Customer-hours out
155K
Peak customers out
3,727
Outages ≥1,000 out
5
0 of 10,000+ · 404 total
Longest outage
6d
began August 26, 2020
Rank in state
100th/254
745th of 3,019 US

Compared with TX, the US and 2019

Shelby County, TX average hours without power per customer compared with state and national averages, 2020Shelby County 10.7 hours, Texas average 5.3 hours, US average 8.7 hours, Shelby County, 2019 2.7 hoursShelby CountyShelby County10.7hTexas averageTexas average5.3hUS averageUS average8.7hShelby County, 2019Shelby County, 20192.7h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Shelby County, TX customer-hours without power by month, 2020Jan 4,003, Feb 3,042, Mar 403, Apr 6,142, May 7,334, Jun 925, Jul 3,034, Aug 100K, Sep 21K, Oct 5,265, Nov 1,893, Dec 1,905050k100k150k4,003Jan3,042Feb403Mar6,142Apr7,334May925Jun3,034Jul100KAug21KSep5,265Oct1,893Nov1,905Dec
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Customer-hours; August was the worst month.

Shelby County year over year

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Shelby County, TX: average hours without power per customer by year2015: 2.0h; 2016: 1.5h; 2017: 3.2h; 2018: 2.2h, coverage 90%; 2019: 2.7h, coverage 93%; 2020: 10.7h, coverage 63%; 2021: 9.1h, coverage 94%; 2022: 3.5h, coverage 93%; 2023: 7.9h; 2024: 14.8h; 2025: 13.8h0510150%50%100%2.0h20151.5h20163.2h20172.2h20182.7h201910.7h20209.1h20213.5h20227.9h202314.8h202413.8h2025
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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 Texas customers tracked each year.

Biggest outages in Shelby County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 26, 2020 23:15September 1, 2020 23:156d3,727102K
2September 2, 2020 09:15September 3, 2020 01:3016h 15m3,38514K
3October 27, 2020 15:30October 27, 2020 18:002h 30m2,253804
4May 8, 2020 15:30May 8, 2020 20:154h 45m1,9344,686
5December 16, 2020 18:45December 16, 2020 21:152h 30m1,0171,525
6February 22, 2020 07:00February 22, 2020 18:4511h 45m9672,814
7September 30, 2020 13:45September 30, 2020 19:005h 15m4881,472
8January 10, 2020 20:30January 15, 2020 13:004d 16h3443,707
9April 12, 2020 14:15April 13, 2020 03:3013h 15m3013,127
10September 21, 2020 14:00September 21, 2020 16:002h287567

Outage episodes by size in 2020: 33 reached 100+ customers, 5 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 Shelby County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southwestern Electric Power Co202026.5 hrs2.794.6 hrs1.94
Deep East Texas Elec Coop Inc202014.1 hrs-6.9 hrs-
Rusk County Electric Coop, Inc202012.4 hrs-7.0 hrs-
City of Timpson - (TX)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 63% of Texas's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 14,484 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. Shelby County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Shelby County, TX annual power outage report, 2020, 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/2020/texas/shelby-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON