Power Out Map
– 0% of Zavala out 0 customers out in Texas

Power outage history

Zavala County Texas

13hours

without power for the average customer in a typical year, 2018–2025

93rd most of 240 in Texas 2.0× the national median

Worst outage on record Feb 17, 2021 52% of customers out · 90% back in 29 hours
Hours without power, average customer per year 13h / yr State average 9.0 h · national median 6.6 h
Major outages a year 3.4 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2hours Median across major outages, from the peak
Longest single outage 4.1days Feb 14, 2021, over 1% of customers out
Outage hours on storm days 47% Share falling on days with a NOAA storm report here
Worst year 2021 35 hours without power, average customer
Electricity customers 4,933 Estimated from population · 8 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of Zavala's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2021 was the worst well-recorded year, at 35 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Zavala, hours without power per customer

ZavalaUS median countyTexas average
0 10 20 30 40 7.0 ’15 ’17 6.0 ’18 5.7 ’19 8.5 ’20 35 ’21 5.1 ’22 8.6 ’23 16 ’24 19 ’25 TX 9.0 US 6.6

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Feb 14, 2021 Winter storm 2,560 52% 4.1 d 29 h 136k
May 14, 2015 Flooding 1,298 26% 18 h 3.5 h 12k
Apr 29, 2021 No storm report 1,317 27% 14 h 3.8 h 10k
Dec 13, 2018 No storm report 790 16% 28 h 22 h 8.4k
Dec 7, 2017 Winter storm 662 13% 27 h 8.0 h 6.7k
May 24, 2020 No storm report 1,164 24% 17 h 9.2 h 5.7k
Jun 10, 2025 No storm report 564 11% 21 h 12 h 4.9k
May 30, 2015 No storm report 1,266 26% 7.8 h 1.5 h 4.4k
Mar 20, 2015 No storm report 1,023 21% 4.0 h 4.0 h 4.0k
May 1, 2025 No storm report 541 11% 23 h 17 h 3.8k
Aug 22, 2023 Tropical Storm Harold 1,158 23% 10 h 2.5 h 3.4k
May 28, 2024 No storm report 148 3% 35 h – 3.2k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +4h 90% by +4h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Zavala from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 54%
  • Winter storm 43%
  • Thunderstorms 2.1%
  • Tropical storm 1.3%

Who keeps the lights on

Utilities serving Zavala

As each utility reports to the Energy Information Administration for its whole Texas territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Medina Electric Coop, Inc Cooperative 300 259 2.70 12.5 31k
Rio Grande Electric Coop, Inc Cooperative 195 134 – 18.3 9.4k
AEP Texas Central Company Investor Owned 205 155 1.76 – –

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Next door

Neighbouring counties

Across Texas

Where it is darkest

Hours / yr64+

All Texas counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 4,933 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →