massoutage

County annual report · FIPS 48259

2021 Kendall County, TX Power Outage Report

In 2021, customers in Kendall County, TX went without power for an average of 24.6 hours, a total of 519K customer-hours (Texas average 21.0 hours). That ranks 117th worst of 252 Texas counties and 343rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
24.6
21,038 customers
Customer-hours out
519K
Peak customers out
9,137
Outages ≥1,000 out
5
0 of 10,000+ · 553 total
Longest outage
18d 8h
began February 11, 2021
Rank in state
117th/252
343rd of 2,974 US

Compared with TX, the US and 2020

Kendall County, TX average hours without power per customer compared with state and national averages, 2021Kendall County 24.6 hours, Texas average 21.0 hours, US average 8.9 hours, Kendall County, 2020 4.9 hoursKendall CountyKendall County24.6hTexas averageTexas average21.0hUS averageUS average8.9hKendall County, 2020Kendall County, 20204.9h
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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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Kendall County, TX customer-hours without power by month, 2021Jan 388, Feb 475K, Mar 907, Apr 1,256, May 7,272, Jun 3,053, Jul 5,922, Aug 9,207, Sep 9,622, Oct 1,097, Nov 3,981, Dec 1,2650200k400k600k388Jan475KFeb907Mar1,256Apr7,272May3,053Jun5,922Jul9,207Aug9,622Sep1,097Oct3,981Nov1,265Dec
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Customer-hours; February was the worst month.

Kendall County year over year

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Kendall County, TX: average hours without power per customer by year2015: no data; 2016: 0.0h; 2017: 0.1h; 2018: 0.8h, coverage 90%; 2019: 1.0h, coverage 93%; 2020: 4.9h, coverage 63%; 2021: 24.6h, coverage 94%; 2022: 2.3h, coverage 93%; 2023: 14.0h; 2024: 2.7h; 2025: 2.8h01020300%50%100%n/a20150.0h20160.1h20170.8h20181.0h20194.9h202024.6h20212.3h202214.0h20232.7h20242.8h2025
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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 Kendall County, 2021

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
1February 11, 2021 15:15March 1, 2021 23:4518d 8h9,137475K
2August 9, 2021 19:30August 10, 2021 02:006h 30m1,9721,694
3September 29, 2021 01:15September 30, 2021 04:451d 3h1,6698,673
4July 23, 2021 17:15July 23, 2021 23:306h 15m1,1982,415
5August 27, 2021 20:15August 27, 2021 22:452h 30m1,118283
6July 5, 2021 20:45July 6, 2021 06:4510h8112,033
7June 22, 2021 05:30June 22, 2021 16:4511h 15m7441,150
8June 14, 2021 00:45June 14, 2021 01:451h730361
9June 14, 2021 18:00June 15, 2021 03:459h 45m690269
10December 11, 2021 13:00December 11, 2021 16:303h 30m680820

Outage episodes by size in 2021: 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 Kendall County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pedernales Electric Coop, Inc20212.5 hrs1.1384 min1.13
Central Texas Elec Coop, Inc2021137.5 hrs3.9452.5 hrs2.54
City of San Antonio - (TX)20212.9 hrs1.5868 min1.01
Bandera Electric Coop, Inc202115.7 hrs18.9664 min0.63
City of Boerne-----

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 ÷ 21,038 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. Kendall County has data for 2016–2025.

Cite this report

MassOutage (massoutage.com), Kendall 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/kendall-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON