massoutage

County annual report · FIPS 48001

2025 Anderson County, TX Power Outage Report

In 2025, customers in Anderson County, TX went without power for an average of 7.4 hours, a total of 216K customer-hours (Texas average 4.6 hours). That ranks 139th worst of 254 Texas counties and 1087th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
7.4
29,000 customers
Customer-hours out
216K
Peak customers out
6,058
Outages ≥1,000 out
17
0 of 10,000+ · 829 total
Longest outage
2d 18h
began March 4, 2025
Rank in state
139th/254
1087th of 3,000 US

Compared with TX, the US and 2024

Anderson County, TX average hours without power per customer compared with state and national averages, 2025Anderson County 7.4 hours, Texas average 4.6 hours, US average 5.9 hours, Anderson County, 2024 25.2 hoursAnderson CountyAnderson County7.4hTexas averageTexas average4.6hUS averageUS average5.9hAnderson County, 2024Anderson County, 202425.2h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Anderson County, TX customer-hours without power by month, 2025Jan 6,923, Feb 3,194, Mar 67K, Apr 7,556, May 48K, Jun 28K, Jul 13K, Aug 17K, Sep 3,335, Oct 12K, Nov 5,289, Dec 3,688020k40k60k80k6,923Jan3,194Feb67KMar7,556Apr48KMay28KJun13KJul17KAug3,335Sep12KOct5,289Nov3,688Dec
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Customer-hours; March was the worst month.

Anderson County year over year

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Anderson County, TX: average hours without power per customer by year2015: 4.9h; 2016: 0.1h; 2017: 1.5h; 2018: 2.9h, coverage 90%; 2019: 10.3h, coverage 93%; 2020: 4.9h, coverage 63%; 2021: 26.1h, coverage 94%; 2022: 10.1h, coverage 93%; 2023: 22.1h; 2024: 25.2h; 2025: 7.4h01020300%50%100%4.9h20150.1h20161.5h20172.9h201810.3h20194.9h202026.1h202110.1h202222.1h202325.2h20247.4h2025
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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 Anderson County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 4, 2025 11:15March 7, 2025 05:152d 18h6,05862K
2May 26, 2025 09:00May 28, 2025 01:151d 16h3,44629K
3August 3, 2025 21:30August 4, 2025 09:3012h3,0256,117
4October 25, 2025 06:15October 26, 2025 21:151d 15h2,9135,931
5December 4, 2025 14:45December 4, 2025 18:153h 30m2,0281,539
6October 15, 2025 15:45October 15, 2025 17:452h1,7552,635
7June 12, 2025 09:45June 13, 2025 05:4520h1,5318,309
8May 6, 2025 17:00May 8, 2025 09:151d 16h1,5168,199
9January 22, 2025 19:45January 22, 2025 21:452h1,3401,006
10August 30, 2025 13:45August 31, 2025 04:4515h1,2713,320

Outage episodes by size in 2025: 84 reached 100+ customers, 17 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 Anderson County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Oncor Electric Delivery Company LLC20173.4 hrs1.692.4 hrs1.49
Trinity Valley Elec Coop Inc202417.4 hrs3.914.5 hrs2.46
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 n/a of Texas's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 29,000 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. Anderson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Anderson County, TX annual power outage report, 2025, 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/2025/texas/anderson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON