Power outage history
Nolan County Texas
7.9hours
without power for the average customer in a typical year, 2018–2025
149th most of 240 in Texas 1.2× 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 Nolan'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 21 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Nolan, 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 12, 2021 | Winter storm | 2,396 | 28% | 6.6 d | 2.0 d | 100k |
| Jun 21, 2023 | Thunderstorms | 4,216 | 49% | 40 h | 13 h | 43k |
| Jan 2, 2015 | Winter storm | 942 | 11% | 2.8 d | 2.1 d | 30k |
| Feb 2, 2022 | Winter storm | 940 | 11% | 28 h | 19 h | 19k |
| Dec 31, 2020 | Winter storm | 1,019 | 12% | 27 h | 15 h | 14k |
| Mar 4, 2025 | Windstorm | 1,404 | 16% | 22 h | 6.2 h | 12k |
| Oct 28, 2020 | Ice storm | 2,050 | 24% | 23 h | 5.5 h | 12k |
| Mar 14, 2025 | Windstorm | 2,355 | 27% | 17 h | 6.8 h | 9.7k |
| Jun 26, 2022 | No storm report | 1,138 | 13% | 14 h | 7.5 h | 9.5k |
| Feb 19, 2021 | No storm report | 955 | 11% | 19 h | 14 h | 7.9k |
| Feb 11, 2021 | Winter storm | 684 | 8% | 18 h | 14 h | 6.4k |
| Oct 3, 2023 | Thunderstorms | 3,845 | 44% | 17 h | 12 min | 4.8k |
| May 31, 2024 | No storm report | 521 | 6% | 9.2 h | 11 h | 4.6k |
| Jun 9, 2025 | No storm report | 1,158 | 13% | 7.5 h | 1.0 h | 3.5k |
| Sep 11, 2023 | Thunderstorms | 338 | 4% | 14 h | – | 3.3k |
| Jun 30, 2023 | No storm report | 205 | 2% | 23 h | – | 3.3k |
| Nov 18, 2024 | Thunderstorms | 565 | 7% | 9.2 h | 48 min | 2.9k |
| Jun 7, 2018 | Thunderstorms | 261 | 3% | 18 h | – | 2.9k |
| Apr 27, 2021 | Thunderstorms | 244 | 3% | 15 h | – | 2.8k |
| May 23, 2023 | Thunderstorms | 738 | 9% | 6.0 h | 4.8 h | 2.7k |
| Apr 9, 2024 | No storm report | 1,134 | 13% | 5.0 h | 5.0 h | 2.7k |
| Jun 22, 2021 | No storm report | 1,653 | 19% | 3.0 h | 1.0 h | 2.7k |
| Jul 28, 2021 | No storm report | 274 | 3% | 15 h | – | 2.6k |
| Sep 17, 2021 | No storm report | 1,718 | 20% | 3.0 h | 3.0 h | 2.5k |
| Sep 30, 2021 | Thunderstorms | 195 | 2% | 24 h | – | 2.5k |
| Apr 4, 2025 | No storm report | 431 | 5% | 7.2 h | – | 2.5k |
| Apr 24, 2022 | No storm report | 741 | 9% | 7.2 h | 30 min | 2.5k |
| Jun 5, 2025 | No storm report | 744 | 9% | 9.2 h | 9.0 h | 2.5k |
| Jun 15, 2015 | No storm report | 610 | 7% | 4.0 h | 3.8 h | 2.4k |
| May 5, 2023 | No storm report | 750 | 9% | 3.2 h | 1.0 h | 2.4k |
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 Nolan from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 38%
- Winter storm 34%
- Thunderstorms 19%
- Windstorm 5.2%
- Ice storm 3.1%
Who keeps the lights on
Utilities serving Nolan
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 |
|---|---|---|---|---|---|---|
| Taylor Electric Coop Inc | Cooperative | 364 | 309 | 3.54 | 16.1 | 19k |
| Concho Valley Elec Coop Inc | Cooperative | 364 | 364 | 3.73 | 13.5 | 12k |
| Big Country Electric Coop, Inc | Cooperative | 1,182 | – | – | 13.3 | 9.5k |
| AEP Texas North Company | Investor Owned | 133 | 106 | 1.41 | – | – |
| Oncor Electric Delivery Company LLC | Investor Owned | 232 | 67 | 1.55 | – | – |
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 8,654 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 →