Power outage history
Knox County Nebraska
The outage record here is too thin for a reliable yearly average. Raw events are listed below.
Worst outage on record May 12, 2022 15% of customers out · 90% back in 8.2 hoursEvery day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Knox's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
Knox, 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 |
|---|---|---|---|---|---|---|
| May 12, 2022 | Thunderstorms | 1,228 | 15% | 8.5 h | 8.2 h | 7.8k |
| Feb 15, 2025 | No storm report | 665 | 8% | 3.8 h | 3.8 h | 2.5k |
| Nov 18, 2016 | Winter storm | 701 | 9% | 3.5 h | 3.5 h | 2.5k |
| Apr 13, 2025 | No storm report | 575 | 7% | 2.8 h | 2.8 h | 1.6k |
| Dec 24, 2023 | No storm report | 559 | 7% | 2.2 h | 2.2 h | 1.3k |
| Dec 26, 2024 | No storm report | 666 | 8% | 1.8 h | 1.8 h | 1.2k |
| Jul 19, 2017 | No storm report | 651 | 8% | 1.8 h | 1.8 h | 1.1k |
| Aug 11, 2016 | No storm report | 707 | 9% | 1.2 h | 1.2 h | 884 |
| Jun 12, 2022 | No storm report | 568 | 7% | 1.5 h | 1.2 h | 851 |
| Aug 2, 2016 | No storm report | 707 | 9% | 1.0 h | 1.0 h | 707 |
| Jun 23, 2023 | No storm report | 660 | 8% | 1.0 h | 1.0 h | 660 |
| May 16, 2018 | No storm report | 647 | 8% | 1.0 h | 1.0 h | 647 |
| Mar 15, 2021 | No storm report | 662 | 8% | 48 min | 48 min | 496 |
| Dec 25, 2016 | Windstorm | 651 | 8% | 48 min | 1.2 h | 488 |
| Feb 16, 2021 | Winter storm | 568 | 7% | 48 min | 48 min | 426 |
| Feb 20, 2022 | No storm report | 567 | 7% | 48 min | 48 min | 425 |
| Dec 25, 2023 | Winter storm | 559 | 7% | 48 min | 48 min | 419 |
| Feb 15, 2021 | Winter storm | 664 | 8% | 30 min | – | 332 |
| Feb 3, 2021 | No storm report | 663 | 8% | 30 min | 30 min | 332 |
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 Knox from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 52%
- Thunderstorms 41%
- Winter storm 6.2%
Who keeps the lights on
Utilities serving Knox
As each utility reports to the Energy Information Administration for its whole Nebraska territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Nebraska Public Power District | Political Subdivision | 195 | 77 | 0.90 | 10.9 | 74k |
| Niobrara Valley El Member Corp | NE | – | – | – | 10.2 | 56k |
| North Central Public Pwr Dist | NE | 146 | – | 0.56 | 11.4 | 51k |
| Cedar-Knox Public Power Dist | Political Subdivision | – | – | – | 9.0 | 6.0k |
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
- Yankton, SD 6.4 h
- Bon Homme, SD 5.6 h
- Charles Mix, SD 3.1 h
- Pierce 1.1 h
- Holt 0.7 h
- Knox (this county) – h
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 7,968 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 →