massoutage

County annual report · FIPS 48213

2017 Henderson County, TX Power Outage Report

In 2017, customers in Henderson County, TX went without power for an average of 5.4 hours, a total of 301K customer-hours (Texas average 1.6 hours). That ranks 47th worst of 249 Texas counties and 914th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
5.4
55,808 customers
Customer-hours out
301K
Peak customers out
6,010
Outages ≥1,000 out
19
0 of 10,000+ · 792 total
Longest outage
4d 9h
began June 24, 2017
Rank in state
47th/249
914th of 2,786 US

Compared with TX, the US and 2016

Henderson County, TX average hours without power per customer compared with state and national averages, 2017Henderson County 5.4 hours, Texas average 1.6 hours, US average 7.4 hours, Henderson County, 2016 0.1 hoursHenderson CountyHenderson County5.4hTexas averageTexas average1.6hUS averageUS average7.4hHenderson County, 2016Henderson County, 20…0.1h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Henderson County, TX customer-hours without power by month, 2017Jan 7,062, Feb 6,009, Mar 1,101, Apr 140K, May 98K, Jun 10K, Jul 11K, Aug 4,005, Sep 648, Oct 3,194, Nov 848, Dec 19K050k100k150k7,062Jan6,009Feb1,101Mar140KApr98KMay10KJun11KJul4,005Aug648Sep3,194Oct848Nov19KDec
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Customer-hours; April 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, 2017

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
1April 29, 2017 20:15May 2, 2017 02:002d 5h6,010206K
2December 17, 2017 02:30December 17, 2017 11:309h4,69214K
3April 2, 2017 11:00April 3, 2017 02:3015h 30m3,4649,854
4June 24, 2017 07:45June 28, 2017 17:004d 9h3,1287,734
5May 21, 2017 12:30May 22, 2017 05:0016h 30m2,7254,688
6July 1, 2017 16:45July 2, 2017 04:4512h2,7185,883
7December 11, 2017 19:30December 12, 2017 00:455h 15m2,2071,366
8May 26, 2017 13:15May 26, 2017 15:452h 30m2,1321,592
9April 11, 2017 05:30April 11, 2017 16:4511h 15m2,0268,987
10May 2, 2017 14:30May 4, 2017 05:001d 14h1,8253,975

Outage episodes by size in 2017: 57 reached 100+ customers, 19 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 2017, 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 Inc201714.5 hrs2.553.7 hrs2.33

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 2017; 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, 2017, 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/2017/texas/henderson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON