massoutage

County annual report · FIPS 48505

2019 Zapata County, TX Power Outage Report

In 2019, customers in Zapata County, TX went without power for an average of 6.9 hours, a total of 55K customer-hours (Texas average 4.9 hours). That ranks 116th worst of 254 Texas counties and 812th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
6.9
8,025 customers
Customer-hours out
55K
Peak customers out
2,837
Outages ≥1,000 out
4
0 of 10,000+ · 350 total
Longest outage
2d 5h
began July 23, 2019
Rank in state
116th/254
812th of 2,945 US

Compared with TX, the US and 2018

Zapata County, TX average hours without power per customer compared with state and national averages, 2019Zapata County 6.9 hours, Texas average 4.9 hours, US average 4.7 hours, Zapata County, 2018 2.7 hoursZapata CountyZapata County6.9hTexas averageTexas average4.9hUS averageUS average4.7hZapata County, 2018Zapata County, 20182.7h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Zapata County, TX customer-hours without power by month, 2019Jan 372, Feb 1,263, Mar 3,017, Apr 4,611, May 664, Jun 9,828, Jul 7,528, Aug 22K, Sep 1,620, Oct 3,206, Nov 279, Dec 404010k20k30k372Jan1,263Feb3,017Mar4,611Apr664May9,828Jun7,528Jul22KAug1,620Sep3,206Oct279Nov404Dec
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Customer-hours; August was the worst month.

Zapata County year over year

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Zapata County, TX: average hours without power per customer by year2015: 5.1h; 2016: no data; 2017: 0.2h; 2018: 2.7h, coverage 90%; 2019: 6.9h, coverage 93%; 2020: 12.1h, coverage 63%; 2021: 61.3h, coverage 94%; 2022: 6.7h, coverage 93%; 2023: 3.7h; 2024: 4.5h; 2025: 5.1h0204060800%50%100%5.1h2015n/a20160.2h20172.7h20186.9h201912.1h202061.3h20216.7h20223.7h20234.5h20245.1h2025
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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 Zapata County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 24, 2019 21:15August 26, 2019 17:451d 20h2,83720K
2June 16, 2019 00:30June 16, 2019 03:002h 30m2,8036,686
3July 13, 2019 20:00July 14, 2019 01:455h 45m1,1493,768
4April 7, 2019 11:45April 7, 2019 20:459h1,1393,806
5July 23, 2019 18:30July 26, 2019 00:152d 5h9971,993
6September 3, 2019 01:30September 3, 2019 05:003h 30m8821,077
7October 29, 2019 16:00October 29, 2019 16:4545m865434
8July 12, 2019 16:30July 13, 2019 15:0022h 30m8461,203
9June 26, 2019 13:15June 26, 2019 17:003h 45m8411,288
10March 21, 2019 16:00March 21, 2019 19:003h8352,503

Outage episodes by size in 2019: 21 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 Zapata County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
AEP Texas Central Company20183.3 hrs1.812.8 hrs1.68
Medina Electric Coop, Inc20185.1 hrs2.164.5 hrs1.99

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 93% of Texas's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 8,025 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. Zapata County has data for 2015, 2017–2025.

Cite this report

MassOutage (massoutage.com), Zapata County, TX annual power outage report, 2019, 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/2019/texas/zapata-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON