massoutage

County annual report · FIPS 48001

2015 Anderson County, TX Power Outage Report

In 2015, customers in Anderson County, TX went without power for an average of 4.9 hours, a total of 143K customer-hours (Texas average 1.9 hours). That ranks 87th worst of 238 Texas counties and 577th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
4.9
29,000 customers
Customer-hours out
143K
Peak customers out
5,659
Outages ≥1,000 out
9
0 of 10,000+ · 416 total
Longest outage
4d 16h
began May 25, 2015
Rank in state
87th/238
577th of 2,484 US

Compared with TX, the US

Anderson County, TX average hours without power per customer compared with state and national averages, 2015Anderson County 4.9 hours, Texas average 1.9 hours, US average 2.9 hoursAnderson CountyAnderson County4.9hTexas averageTexas average1.9hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Anderson County, TX customer-hours without power by month, 2015Jan 4,426, Feb 1,636, Mar 4,164, Apr 12K, May 110K, Jun 3,062, Jul 6,612, Aug 2, Sep 0, Oct 0, Nov 0, Dec 0050k100k150k4,426Jan1,636Feb4,164Mar12KApr110KMay3,062Jun6,612Jul2Aug0Sep0Oct0Nov0Dec
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Customer-hours; May 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, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 25, 2015 18:00May 30, 2015 10:004d 16h5,659102K
2July 23, 2015 15:15July 23, 2015 21:005h 45m2,3411,796
3March 13, 2015 06:45March 13, 2015 17:4511h1,9191,241
4June 15, 2015 22:30June 16, 2015 10:1511h 45m1,8961,131
5July 31, 2015 03:00July 31, 2015 03:1515m1,880470
6July 19, 2015 12:30July 19, 2015 14:302h1,7391,833
7July 14, 2015 20:30July 15, 2015 00:454h 15m1,4511,694
8January 11, 2015 09:00January 11, 2015 09:1515m1,009252
9January 11, 2015 10:15January 11, 2015 10:4530m1,009424
10January 5, 2015 13:45January 5, 2015 19:005h 15m6341,688

Outage episodes by size in 2015: 36 reached 100+ customers, 9 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 2015, 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 LLC20154.5 hrs1.882.4 hrs1.36
Trinity Valley Elec Coop Inc20155.8 hrs3.395.8 hrs3.39
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 2015; 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, 2015, 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/2015/texas/anderson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON