massoutage

County annual report · FIPS 05131

2020 Sebastian County, AR Power Outage Report

In 2020, customers in Sebastian County, AR went without power for an average of 1.9 hours, a total of 147K customer-hours (Arkansas average 10.5 hours). That ranks 67th worst of 75 Arkansas counties and 2297th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
1.9
77,727 customers
Customer-hours out
147K
Peak customers out
6,320
Outages ≥1,000 out
18
0 of 10,000+ · 559 total
Longest outage
2d 10h
began August 30, 2020
Rank in state
67th/75
2297th of 3,019 US

Compared with AR, the US and 2019

Sebastian County, AR average hours without power per customer compared with state and national averages, 2020Sebastian County 1.9 hours, Arkansas average 10.5 hours, US average 8.7 hours, Sebastian County, 2019 6.5 hoursSebastian CountySebastian County1.9hArkansas averageArkansas average10.5hUS averageUS average8.7hSebastian County, 2019Sebastian County, 20…6.5h
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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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Sebastian County, AR customer-hours without power by month, 2020Jan 6,572, Feb 2,780, Mar 4,216, Apr 16K, May 4,847, Jun 11K, Jul 27K, Aug 40K, Sep 14K, Oct 6,100, Nov 8,710, Dec 5,957020k40k60k6,572Jan2,780Feb4,216Mar16KApr4,847May11KJun27KJul40KAug14KSep6,100Oct8,710Nov5,957Dec
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Customer-hours; August was the worst month.

Sebastian County year over year

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Sebastian County, AR: average hours without power per customer by year2015: 1.2h; 2016: 4.8h; 2017: 2.5h; 2018: 1.7h, coverage 78%; 2019: 6.5h, coverage 83%; 2020: 1.9h, coverage 86%; 2021: 5.4h, coverage 86%; 2022: 1.6h, coverage 86%; 2023: 9.2h; 2024: 3.5h; 2025: 2.7h02.557.5100%50%100%1.2h20154.8h20162.5h20171.7h20186.5h20191.9h20205.4h20211.6h20229.2h20233.5h20242.7h2025
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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 Arkansas customers tracked each year.

Biggest outages in Sebastian County, 2020

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 3, 2020 22:15July 4, 2020 00:001h 45m6,3206,369
2August 14, 2020 09:00August 15, 2020 04:0019h5,09124K
3September 5, 2020 19:00September 5, 2020 20:151h 15m4,9902,260
4April 27, 2020 15:30April 27, 2020 16:301h4,5814,033
5September 9, 2020 05:15September 9, 2020 06:301h 15m3,3782,050
6November 4, 2020 16:00November 4, 2020 16:3030m2,8831,442
7June 3, 2020 21:45June 4, 2020 03:155h 30m2,5637,436
8January 13, 2020 20:00January 13, 2020 20:1515m2,152538
9January 14, 2020 15:30January 14, 2020 16:1545m2,1501,606
10August 30, 2020 11:45September 1, 2020 22:002d 10h1,9567,852

Outage episodes by size in 2020: 70 reached 100+ customers, 18 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 Sebastian County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southwestern Electric Power Co202026.5 hrs2.794.6 hrs1.94
Arkansas Valley Elec Coop Corp20208.0 hrs3.295.3 hrs2.79
Oklahoma Gas & Electric Co-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 86% of Arkansas's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 77,727 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. Sebastian County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Sebastian County, AR 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/arkansas/sebastian-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON