Power outage history
Robertson County Texas
21hours
without power for the average customer in a typical year, 2018–2025
37th most of 240 in Texas 3.2× 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 Robertson's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 2.2 days for the average customer. Hatched years have a thin record and are left out of the averages.
Robertson, 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 1, 2023 | Ice storm | 7,567 | 71% | 5.5 d | 2.4 d | 441k |
| Feb 11, 2021 | Ice storm | 4,312 | 41% | 10.4 d | 20 h | 304k |
| Jan 10, 2021 | Winter storm | 5,172 | 49% | 3.2 d | 2.3 d | 150k |
| Apr 13, 2019 | Tornadoes | 3,212 | 30% | 2.3 d | 2.1 d | 119k |
| May 22, 2024 | No storm report | 5,940 | 56% | 24 h | 34 h | 64k |
| Jun 21, 2023 | Heat | 6,061 | 57% | 27 h | 11 h | 38k |
| Oct 25, 2019 | No storm report | 3,338 | 31% | 10 h | 1.2 h | 32k |
| Jul 1, 2024 | Heat | 3,329 | 31% | 8.0 h | 7.8 h | 26k |
| Sep 9, 2019 | Thunderstorms | 3,417 | 32% | 6.5 h | 5.0 h | 22k |
| Sep 6, 2019 | No storm report | 1,125 | 11% | 18 h | 19 h | 19k |
| May 24, 2024 | Tornadoes | 813 | 8% | 40 h | 34 h | 15k |
| May 19, 2016 | No storm report | 3,057 | 29% | 4.8 h | 4.8 h | 15k |
| Oct 24, 2022 | No storm report | 2,644 | 25% | 11 h | 8.8 h | 14k |
| Feb 21, 2022 | No storm report | 1,491 | 14% | 8.0 h | 4.8 h | 12k |
| May 5, 2023 | No storm report | 2,499 | 24% | 14 h | 8.0 h | 10k |
| May 6, 2025 | Tornadoes | 1,777 | 17% | 8.2 h | 6.8 h | 9.8k |
| Jun 21, 2024 | No storm report | 3,668 | 35% | 2.8 h | 2.5 h | 9.5k |
| Jun 19, 2019 | Heat | 854 | 8% | 20 h | 13 h | 9.5k |
| Jan 3, 2023 | No storm report | 1,575 | 15% | 9.2 h | 4.5 h | 9.4k |
| Oct 25, 2025 | No storm report | 1,958 | 18% | 8.2 h | 5.2 h | 8.2k |
| Jun 16, 2019 | No storm report | 1,276 | 12% | 18 h | 12 h | 7.8k |
| Oct 30, 2019 | No storm report | 1,153 | 11% | 7.2 h | 9.5 h | 7.8k |
| May 28, 2021 | No storm report | 1,748 | 16% | 13 h | 9.2 h | 7.7k |
| May 21, 2022 | No storm report | 1,035 | 10% | 16 h | 3.5 h | 7.5k |
| Apr 20, 2023 | Thunderstorms | 749 | 7% | 16 h | 13 h | 6.6k |
| Feb 20, 2017 | Thunderstorms | 1,899 | 18% | 14 h | 12 h | 6.3k |
| Jul 18, 2022 | Heat | 1,183 | 11% | 4.5 h | 6.2 h | 5.3k |
| May 9, 2024 | No storm report | 727 | 7% | 13 h | 13 h | 5.2k |
| Apr 24, 2021 | No storm report | 1,151 | 11% | 4.2 h | 12 h | 4.9k |
| Oct 18, 2025 | No storm report | 1,289 | 12% | 4.0 h | 4.0 h | 4.4k |
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 Robertson from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Ice storm 45%
- No storm on record 28%
- Winter storm 9.1%
- Tornadoes 8.7%
- Heat 5.8%
- Thunderstorms 2.9%
Who keeps the lights on
Utilities serving Robertson
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 |
|---|---|---|---|---|---|---|
| Entergy Texas Inc. | Investor Owned | 403 | 305 | 2.58 | 13.9 | 469k |
| City of Bryan | Municipal | 44 | – | 0.36 | 10.9 | 63k |
| City of Hearne | TX | – | – | – | – | 23k |
| Navasota Valley Elec Coop, Inc | Cooperative | 569 | 473 | 4.45 | 16.3 | 20k |
| Texas-New Mexico Power Co | Investor Owned | 165 | 119 | 1.50 | – | – |
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 10,628 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 →