massoutage

County annual report · FIPS 48213

2020 Henderson County, TX Power Outage Report

In 2020, customers in Henderson County, TX went without power for an average of 3.3 hours, a total of 186K customer-hours (Texas average 5.3 hours). That ranks 187th worst of 254 Texas counties and 1767th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
55,808 customers
Customer-hours out
186K
Peak customers out
9,603
Outages ≥1,000 out
25
0 of 10,000+ · 1,078 total
Longest outage
1d 21h
began July 6, 2020
Rank in state
187th/254
1767th of 3,019 US

Compared with TX, the US and 2019

Henderson County, TX average hours without power per customer compared with state and national averages, 2020Henderson County 3.3 hours, Texas average 5.3 hours, US average 8.7 hours, Henderson County, 2019 7.5 hoursHenderson CountyHenderson County3.3hTexas averageTexas average5.3hUS averageUS average8.7hHenderson County, 2019Henderson County, 20…7.5h
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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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Henderson County, TX customer-hours without power by month, 2020Jan 21K, Feb 9,469, Mar 13K, Apr 18K, May 13K, Jun 7,918, Jul 15K, Aug 56K, Sep 17K, Oct 2,636, Nov 3,670, Dec 11K020k40k60k21KJan9,469Feb13KMar18KApr13KMay7,918Jun15KJul56KAug17KSep2,636Oct3,670Nov11KDec
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Customer-hours; August was the worst month.

Henderson County year over year

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Henderson County, TX: average hours without power per customer by year2015: 3.0h; 2016: 0.1h; 2017: 5.4h; 2018: 3.0h, coverage 90%; 2019: 7.5h, coverage 93%; 2020: 3.3h, coverage 63%; 2021: 18.2h, coverage 94%; 2022: 8.4h, coverage 93%; 2023: 14.9h; 2024: 10.8h; 2025: 5.0h051015200%50%100%3.0h20150.1h20165.4h20173.0h20187.5h20193.3h202018.2h20218.4h202214.9h202310.8h20245.0h2025
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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 Henderson 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
1August 16, 2020 19:30August 18, 2020 03:451d 8h9,60338K
2January 7, 2020 12:00January 7, 2020 17:005h9,1103,048
3January 6, 2020 14:45January 6, 2020 17:002h 15m4,9773,745
4August 26, 2020 22:30August 27, 2020 14:4516h 15m4,7786,050
5September 2, 2020 01:45September 3, 2020 01:1523h 30m2,5418,781
6February 15, 2020 15:45February 15, 2020 16:3045m2,0841,043
7August 20, 2020 09:15August 20, 2020 10:451h 30m1,8572,786
8April 20, 2020 00:45April 20, 2020 11:1510h 30m1,8442,197
9May 8, 2020 06:00May 8, 2020 15:459h 45m1,5972,053
10September 16, 2020 13:15September 16, 2020 15:452h 30m1,4801,483

Outage episodes by size in 2020: 112 reached 100+ customers, 25 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 Henderson 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
Oncor Electric Delivery Company LLC20173.4 hrs1.692.4 hrs1.49
Trinity Valley Elec Coop Inc20202.8 hrs2.492.3 hrs2.26

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 ÷ 55,808 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. Henderson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Henderson 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/henderson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON