Power outage history
Hays County Texas
5.4hours
without power for the average customer in a typical year, 2018–2025
193rd most of 240 in Texas 18% below 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 Hays'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 22 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Hays, 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 | 53,598 | 75% | 2.9 d | 15 h | 1.4M |
| Feb 1, 2023 | Winter storm | 11,793 | 17% | 5.0 d | 3.2 d | 598k |
| Aug 2, 2021 | Flooding | 19,139 | 27% | 4.2 h | 12 min | 28k |
| Jun 9, 2019 | Thunderstorms | 10,499 | 15% | 8.0 h | 4.0 h | 27k |
| Feb 18, 2021 | Winter storm | 2,425 | 3% | 15 h | – | 21k |
| Oct 25, 2025 | No storm report | 10,623 | 15% | 4.2 h | 3.2 h | 21k |
| Mar 28, 2018 | Flooding | 7,358 | 10% | 3.5 h | 1.8 h | 19k |
| Jul 31, 2019 | No storm report | 3,417 | 5% | 8.5 h | – | 15k |
| Feb 19, 2021 | No storm report | 2,257 | 3% | 8.8 h | – | 14k |
| Aug 2, 2021 | No storm report | 9,300 | 13% | 2.0 h | 2.0 h | 13k |
| Aug 27, 2017 | Hurricane Harvey | 2,956 | 4% | 8.5 h | – | 11k |
| May 9, 2024 | Thunderstorms | 5,064 | 7% | 3.2 h | 3.2 h | 11k |
| May 3, 2019 | Flooding | 5,086 | 7% | 6.5 h | 5.5 h | 11k |
| Oct 25, 2022 | No storm report | 3,737 | 5% | 3.0 h | 2.8 h | 11k |
| Apr 28, 2024 | No storm report | 6,946 | 10% | 2.5 h | 1.5 h | 10k |
| Sep 18, 2024 | No storm report | 3,095 | 4% | 2.5 h | – | 7.7k |
| May 21, 2017 | No storm report | 5,540 | 8% | 2.5 h | 1.5 h | 7.5k |
| Nov 7, 2020 | No storm report | 1,599 | 2% | 4.8 h | – | 7.4k |
| Dec 23, 2022 | No storm report | 2,789 | 4% | 3.2 h | – | 7.4k |
| Oct 24, 2022 | Thunderstorms | 4,871 | 7% | 1.5 h | 1.0 h | 7.2k |
| Jul 11, 2025 | No storm report | 2,704 | 4% | 3.0 h | – | 6.8k |
| Aug 2, 2020 | Thunderstorms | 6,812 | 10% | 1.5 h | 1.2 h | 6.8k |
| Jun 19, 2024 | No storm report | 2,409 | 3% | 3.0 h | – | 6.6k |
| Sep 17, 2022 | No storm report | 3,657 | 5% | 2.2 h | 30 min | 6.4k |
| Jul 18, 2023 | Heat | 3,847 | 5% | 3.0 h | 3.0 h | 6.3k |
| Aug 13, 2022 | No storm report | 2,746 | 4% | 3.2 h | – | 6.2k |
| Jul 16, 2020 | No storm report | 6,441 | 9% | 1.8 h | 1.8 h | 6.1k |
| Oct 31, 2017 | No storm report | 1,829 | 3% | 3.8 h | – | 6.0k |
| Aug 26, 2017 | Hurricane Harvey | 1,601 | 2% | 4.2 h | – | 5.8k |
| Jul 7, 2022 | Wildfire | 13,006 | 18% | 30 min | 30 min | 5.8k |
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 Hays from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Winter storm 75%
- No storm on record 19%
- Thunderstorms 3.5%
- Flooding 2.2%
- Heat 0.5%
Who keeps the lights on
Utilities serving Hays
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 |
|---|---|---|---|---|---|---|
| Pedernales Electric Coop, Inc | Cooperative | 90 | 78 | 1.16 | 12.8 | 421k |
| Bluebonnet Electric Coop, Inc | Cooperative | 114 | 88 | 1.30 | 11.6 | 119k |
| City of San Marcos | Municipal | 137 | – | 1.77 | 12.7 | 22k |
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 71,175 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 →