massoutage

County annual report · FIPS 48437

2021 Swisher County, TX Power Outage Report

In 2021, customers in Swisher County, TX went without power for an average of 1.3 hours, a total of 3,527 customer-hours (Texas average 21.0 hours). That ranks 247th worst of 252 Texas counties and 2538th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.3
2,662 customers
Customer-hours out
3,527
Peak customers out
375
Outages ≥1,000 out
0
0 of 10,000+ · 81 total
Longest outage
1d 6h
began March 13, 2021
Rank in state
247th/252
2538th of 2,974 US

Compared with TX, the US and 2020

Swisher County, TX average hours without power per customer compared with state and national averages, 2021Swisher County 1.3 hours, Texas average 21.0 hours, US average 8.9 hours, Swisher County, 2020 16.4 hoursSwisher CountySwisher County1.3hTexas averageTexas average21.0hUS averageUS average8.9hSwisher County, 2020Swisher County, 202016.4h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Swisher County, TX customer-hours without power by month, 2021Jan 68, Feb 389, Mar 1,837, Apr 737, May 68, Jun 78, Jul 230, Aug 14, Sep 23, Oct 76, Nov 0, Dec 905001k1.5k2k68Jan389Feb1,837Mar737Apr68May78Jun230Jul14Aug23Sep76Oct0Nov9Dec
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Customer-hours; March was the worst month.

Swisher County year over year

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Swisher County, TX: average hours without power per customer by year2015: 1.8h; 2016: 0.2h; 2017: 0.8h; 2018: 0.4h, coverage 90%; 2019: 0.4h, coverage 93%; 2020: 16.4h, coverage 63%; 2021: 1.3h, coverage 94%; 2022: 0.3h, coverage 93%; 2023: 4.9h; 2024: 1.2h; 2025: 1.6h051015200%50%100%1.8h20150.2h20160.8h20170.4h20180.4h201916.4h20201.3h20210.3h20224.9h20231.2h20241.6h2025
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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 Swisher County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 13, 2021 21:45March 15, 2021 04:151d 6h3751,748
2April 15, 2021 07:00April 15, 2021 09:002h375726
3February 16, 2021 13:15February 16, 2021 18:004h 45m270382
4October 29, 2021 00:15October 29, 2021 00:4530m10452
5July 26, 2021 07:15July 26, 2021 08:451h 30m5040
6January 25, 2021 02:45January 25, 2021 05:002h 15m2959
7July 16, 2021 02:30July 16, 2021 18:1515h 45m25177
8March 17, 2021 12:00March 17, 2021 20:008h2274
9June 7, 2021 04:30June 7, 2021 10:155h 45m1526
10May 17, 2021 01:45May 17, 2021 05:303h 45m1323

Outage episodes by size in 2021: 4 reached 100+ customers, 0 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 Swisher County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southwestern Public Service Co20213.2 hrs1.752.0 hrs1.07
Lighthouse Electric Coop, Inc-----
Swisher Electric Coop, Inc-----
City of Tulia-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Texas's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,662 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. Swisher County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Swisher County, TX annual power outage report, 2021, 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/2021/texas/swisher-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON