massoutage

County annual report · FIPS 48065

2020 Carson County, TX Power Outage Report

In 2020, customers in Carson County, TX went without power for an average of 60.9 hours, a total of 255K customer-hours (Texas average 5.3 hours). That ranks 17th worst of 254 Texas counties and 129th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
60.9
4,187 customers
Customer-hours out
255K
Peak customers out
4,374
Outages ≥1,000 out
2
0 of 10,000+ · 267 total
Longest outage
37d 15h
began October 28, 2020
Rank in state
17th/254
129th of 3,019 US

Compared with TX, the US and 2019

Carson County, TX average hours without power per customer compared with state and national averages, 2020Carson County 60.9 hours, Texas average 5.3 hours, US average 8.7 hours, Carson County, 2019 4.8 hoursCarson CountyCarson County60.9hTexas averageTexas average5.3hUS averageUS average8.7hCarson County, 2019Carson County, 20194.8h
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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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Carson County, TX customer-hours without power by month, 2020Jan 72, Feb 217, Mar 257, Apr 135, May 2,094, Jun 684, Jul 4,017, Aug 3,871, Sep 500, Oct 182K, Nov 59K, Dec 1,261050k100k150k200k72Jan217Feb257Mar135Apr2,094May684Jun4,017Jul3,871Aug500Sep182KOct59KNov1,261Dec
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Customer-hours; October was the worst month.

Carson County year over year

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Carson County, TX: average hours without power per customer by year2015: 6.0h; 2016: 1.7h; 2017: 2.8h; 2018: 5.7h, coverage 90%; 2019: 4.8h, coverage 93%; 2020: 60.9h, coverage 63%; 2021: 6.8h, coverage 94%; 2022: 7.4h, coverage 93%; 2023: 3.7h; 2024: 7.1h; 2025: 15.5h0204060800%50%100%6.0h20151.7h20162.8h20175.7h20184.8h201960.9h20206.8h20217.4h20223.7h20237.1h202415.5h2025
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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 Carson County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 28, 2020 05:30December 4, 2020 20:4537d 15h4,374241K
2July 14, 2020 19:45July 15, 2020 00:004h 15m2,3012,952
3August 30, 2020 01:45August 31, 2020 03:001d 1h5472,502
4December 10, 2020 19:45December 10, 2020 22:002h 15m539944
5May 21, 2020 00:30May 21, 2020 03:002h 30m5361,228
6August 27, 2020 03:30August 27, 2020 05:302h168302
7October 21, 2020 16:45October 21, 2020 20:454h14769
8July 14, 2020 12:30July 14, 2020 18:456h 15m12765
9June 20, 2020 10:15June 20, 2020 19:008h 45m126209
10May 8, 2020 04:30May 8, 2020 07:002h 30m119146

Outage episodes by size in 2020: 12 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 Carson 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 Public Service Co20205.5 hrs1.251.7 hrs0.92

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 ÷ 4,187 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. Carson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Carson 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/carson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON