massoutage

County annual report · FIPS 48455

2021 Trinity County, TX Power Outage Report

In 2021, customers in Trinity County, TX went without power for an average of 72.2 hours, a total of 472K customer-hours (Texas average 21.0 hours). That ranks 43rd worst of 252 Texas counties and 113th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
72.2
6,541 customers
Customer-hours out
472K
Peak customers out
6,205
Outages ≥1,000 out
11
0 of 10,000+ · 670 total
Longest outage
23d 5h
began September 27, 2021
Rank in state
43rd/252
113th of 2,974 US

Compared with TX, the US and 2020

Trinity County, TX average hours without power per customer compared with state and national averages, 2021Trinity County 72.2 hours, Texas average 21.0 hours, US average 8.9 hours, Trinity County, 2020 52.3 hoursTrinity CountyTrinity County72.2hTexas averageTexas average21.0hUS averageUS average8.9hTrinity County, 2020Trinity County, 202052.3h
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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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Trinity County, TX customer-hours without power by month, 2021Jan 38K, Feb 283K, Mar 23K, Apr 5,189, May 34K, Jun 9,672, Jul 9,273, Aug 2,666, Sep 1,686, Oct 50K, Nov 9,655, Dec 5,6760100k200k300k38KJan283KFeb23KMar5,189Apr34KMay9,672Jun9,273Jul2,666Aug1,686Sep50KOct9,655Nov5,676Dec
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Customer-hours; February was the worst month.

Trinity County year over year

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Trinity County, TX: average hours without power per customer by year2015: 5.5h; 2016: 6.1h; 2017: 15.2h; 2018: 16.5h, coverage 90%; 2019: 24.7h, coverage 93%; 2020: 52.3h, coverage 63%; 2021: 72.2h, coverage 94%; 2022: 28.2h, coverage 93%; 2023: 30.6h; 2024: 155.5h; 2025: 30.6h0501001502000%50%100%5.5h20156.1h201615.2h201716.5h201824.7h201952.3h202072.2h202128.2h202230.6h2023155.5h202430.6h2025
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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 Trinity 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 14, 2021 23:00February 21, 2021 15:306d 16h6,205282K
2October 28, 2021 15:00October 30, 2021 01:451d 10h5,08248K
3May 29, 2021 03:30May 30, 2021 12:151d 8h3,21716K
4January 10, 2021 22:00January 13, 2021 18:302d 20h3,02136K
5March 13, 2021 05:15March 13, 2021 11:005h 45m2,72416K
6June 7, 2021 17:30June 8, 2021 05:1511h 45m2,1193,856
7May 11, 2021 13:30May 13, 2021 15:452d 2h1,7089,516
8August 9, 2021 20:15August 9, 2021 21:0045m1,6711,253
9March 1, 2021 14:00March 1, 2021 18:454h 45m1,6503,350
10November 3, 2021 15:00November 4, 2021 02:4511h 45m1,6263,567

Outage episodes by size in 2021: 54 reached 100+ customers, 11 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 Trinity 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
Oncor Electric Delivery Company LLC20173.4 hrs1.692.4 hrs1.49
Entergy Texas Inc.202116.7 hrs3.314.7 hrs2.02
Sam Houston Electric Coop Inc202111.3 hrs-4.3 hrs-
Houston County Elec Coop Inc-----

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 ÷ 6,541 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. Trinity County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Trinity 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/trinity-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON