Power outage history
Medina County Texas
16hours
without power for the average customer in a typical year, 2018–2025
65th most of 240 in Texas 2.4× the national median
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 Medina's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2021 was the worst well-recorded year, at 3.4 days for the average customer. Hatched years have a thin record and are left out of the averages.
Medina, hours without power per customer
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 | 15,806 | 100% | 4.0 d | 2.6 d | 971k |
| Apr 28, 2021 | Thunderstorms | 9,388 | 59% | 3.1 d | 40 h | 201k |
| May 24, 2020 | Thunderstorms | 5,765 | 36% | 19 h | 8.8 h | 33k |
| Apr 20, 2023 | No storm report | 3,880 | 25% | 16 h | 13 h | 28k |
| May 23, 2015 | Flooding | 2,015 | 13% | 26 h | 12 h | 17k |
| Jan 22, 2017 | No storm report | 3,814 | 24% | 6.2 h | 3.8 h | 15k |
| Aug 15, 2016 | No storm report | 3,400 | 22% | 12 h | 2.8 h | 15k |
| Sep 19, 2021 | No storm report | 5,755 | 36% | 5.0 h | 2.0 h | 14k |
| May 17, 2021 | No storm report | 4,744 | 30% | 18 h | 4.5 h | 14k |
| Apr 17, 2016 | No storm report | 4,387 | 28% | 3.5 h | 6.0 h | 13k |
| Aug 12, 2016 | No storm report | 3,023 | 19% | 4.5 h | 3.8 h | 12k |
| Dec 3, 2016 | No storm report | 3,118 | 20% | 5.0 h | 5.0 h | 12k |
| Jan 16, 2017 | No storm report | 4,606 | 29% | 2.5 h | 2.5 h | 11k |
| Mar 4, 2025 | Windstorm | 3,675 | 23% | 8.0 h | 5.8 h | 11k |
| Nov 9, 2016 | No storm report | 3,091 | 20% | 4.0 h | 4.0 h | 11k |
| Jan 16, 2018 | Winter storm | 2,390 | 15% | 6.8 h | 4.8 h | 10k |
| Mar 28, 2017 | No storm report | 4,791 | 30% | 2.5 h | 2.5 h | 10k |
| Dec 8, 2016 | No storm report | 3,948 | 25% | 4.2 h | 1.8 h | 10k |
| Jun 23, 2015 | No storm report | 4,214 | 27% | 2.8 h | 2.0 h | 10.0k |
| Jun 14, 2015 | No storm report | 1,959 | 12% | 7.8 h | 7.8 h | 9.8k |
| May 29, 2016 | Thunderstorms | 2,880 | 18% | 4.0 h | 2.8 h | 9.8k |
| Mar 2, 2023 | Thunderstorms | 3,056 | 19% | 13 h | 4.0 h | 9.0k |
| Dec 10, 2023 | No storm report | 2,155 | 14% | 5.5 h | 3.5 h | 8.9k |
| Jul 5, 2021 | No storm report | 2,102 | 13% | 12 h | 7.2 h | 8.9k |
| Jan 15, 2017 | No storm report | 3,914 | 25% | 4.2 h | 4.2 h | 8.8k |
| Dec 3, 2016 | No storm report | 2,545 | 16% | 5.8 h | 2.5 h | 8.6k |
| Feb 1, 2023 | Winter storm | 1,992 | 13% | 12 h | 7.0 h | 8.6k |
| Jun 10, 2025 | Thunderstorms | 2,157 | 14% | 12 h | 8.5 h | 8.2k |
| Apr 2, 2017 | No storm report | 3,269 | 21% | 3.0 h | 2.8 h | 7.9k |
| Apr 27, 2016 | No storm report | 3,682 | 23% | 4.0 h | 3.0 h | 7.9k |
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.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Medina from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Winter storm 56%
- No storm on record 26%
- Thunderstorms 17%
- Windstorm 1.0%
Who keeps the lights on
Utilities serving Medina
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 |
|---|---|---|---|---|---|---|
| City of San Antonio | Municipal | 111 | 75 | 1.54 | 12.4 | 889k |
| City of Hondo | TX | – | – | – | – | 36k |
| Bandera Electric Coop, Inc | Cooperative | 154 | 55 | 0.87 | 12.8 | 36k |
| Medina Electric Coop, Inc | Cooperative | 300 | 259 | 2.70 | 12.5 | 31k |
| City of Castroville | TX | – | – | – | – | 15k |
| Karnes Electric Coop Inc | Cooperative | 176 | 176 | 1.76 | 10.3 | 14k |
| 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.
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 15,806 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 →