massoutage

County annual report · FIPS 48225

2018 Houston County, TX Power Outage Report

In 2018, customers in Houston County, TX went without power for an average of 6.2 hours, a total of 73K customer-hours (Texas average 2.4 hours). That ranks 85th worst of 253 Texas counties and 882nd of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
6.2
11,682 customers
Customer-hours out
73K
Peak customers out
5,310
Outages ≥1,000 out
4
0 of 10,000+ · 526 total
Longest outage
1d 3h
began December 27, 2018
Rank in state
85th/253
882nd of 2,798 US

Compared with TX, the US and 2017

Houston County, TX average hours without power per customer compared with state and national averages, 2018Houston County 6.2 hours, Texas average 2.4 hours, US average 5.6 hours, Houston County, 2017 0.1 hoursHouston CountyHouston County6.2hTexas averageTexas average2.4hUS averageUS average5.6hHouston County, 2017Houston County, 20170.1h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Houston County, TX customer-hours without power by month, 2018Jan 17K, Feb 2,185, Mar 7,078, Apr 1,986, May 2,290, Jun 1,979, Jul 2,715, Aug 26K, Sep 3,384, Oct 4,256, Nov 1,877, Dec 1,932010k20k30k17KJan2,185Feb7,078Mar1,986Apr2,290May1,979Jun2,715Jul26KAug3,384Sep4,256Oct1,877Nov1,932Dec
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Customer-hours; August was the worst month.

Houston County year over year

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Houston County, TX: average hours without power per customer by year2015: 1.9h; 2016: 0.0h; 2017: 0.1h; 2018: 6.2h, coverage 90%; 2019: 8.1h, coverage 93%; 2020: 19.5h, coverage 63%; 2021: 57.3h, coverage 94%; 2022: 33.1h, coverage 93%; 2023: 21.1h; 2024: 28.7h; 2025: 10.8h02040600%50%100%1.9h20150.0h20160.1h20176.2h20188.1h201919.5h202057.3h202133.1h202221.1h202328.7h202410.8h2025
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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 Houston County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 13, 2018 23:00August 14, 2018 22:4523h 45m5,31019K
2January 16, 2018 03:00January 16, 2018 16:4513h 45m5,13216K
3August 28, 2018 19:00August 29, 2018 03:308h 30m1,9902,177
4August 11, 2018 02:30August 11, 2018 06:304h1,4872,232
5October 24, 2018 21:00October 25, 2018 01:304h 30m8472,543
6November 21, 2018 23:00November 22, 2018 00:151h 15m762838
7March 28, 2018 04:15March 28, 2018 11:006h 45m7274,002
8October 10, 2018 13:00October 10, 2018 18:305h 30m722380
9March 28, 2018 13:15March 28, 2018 15:452h 30m7101,065
10May 23, 2018 20:45May 23, 2018 22:151h 30m702212

Outage episodes by size in 2018: 29 reached 100+ customers, 4 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 Houston County reported on EIA Form 861 for 2018, 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
Entergy Texas Inc.20184.3 hrs1.773.7 hrs1.67
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 90% of Texas's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 11,682 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. Houston County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Houston County, TX annual power outage report, 2018, 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/2018/texas/houston-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON