Power outage history
Chippewa County Wisconsin
2.0hours
without power for the average customer in a typical year, 2018–2025
47th most of 72 in Wisconsin 69% 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 Chippewa's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2022 was the worst well-recorded year, at 4.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Chippewa, 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 |
|---|---|---|---|---|---|---|
| Dec 15, 2021 | Tornadoes | 4,789 | 15% | 48 h | 42 h | 98k |
| Dec 15, 2022 | No storm report | 4,277 | 14% | 39 h | 29 h | 92k |
| Aug 27, 2018 | Thunderstorms | 4,125 | 13% | 9.5 h | 8.8 h | 26k |
| Jul 13, 2015 | Thunderstorms | 5,957 | 19% | 16 h | 8.0 h | 20k |
| Jul 19, 2019 | Thunderstorms | 1,988 | 6% | 22 h | 20 h | 18k |
| Jul 18, 2015 | Thunderstorms | 1,349 | 4% | 17 h | – | 9.6k |
| Aug 26, 2018 | Thunderstorms | 2,219 | 7% | 6.8 h | 5.0 h | 8.6k |
| Jan 30, 2018 | No storm report | 2,183 | 7% | 5.2 h | 4.2 h | 8.6k |
| Jan 21, 2025 | Winter storm | 1,559 | 5% | 5.0 h | – | 7.8k |
| Aug 13, 2023 | No storm report | 1,717 | 5% | 4.8 h | 3.5 h | 6.9k |
| Apr 20, 2020 | Thunderstorms | 1,119 | 4% | 7.0 h | – | 6.4k |
| May 11, 2022 | No storm report | 15,629 | 50% | 30 min | 30 min | 5.4k |
| Oct 13, 2023 | No storm report | 1,556 | 5% | 3.0 h | – | 4.7k |
| Nov 16, 2015 | No storm report | 3,257 | 10% | 2.8 h | 1.5 h | 4.3k |
| Aug 27, 2018 | No storm report | 2,370 | 8% | 1.8 h | 1.5 h | 4.1k |
| Jan 22, 2018 | Winter storm | 2,189 | 7% | 2.0 h | 12 min | 4.1k |
| May 25, 2016 | No storm report | 2,345 | 7% | 1.8 h | 12 min | 4.1k |
| Nov 6, 2019 | No storm report | 663 | 2% | 6.0 h | – | 4.0k |
| May 17, 2017 | No storm report | 2,487 | 8% | 2.5 h | 48 min | 3.5k |
| Jun 11, 2017 | Thunderstorms | 1,087 | 3% | 3.2 h | – | 3.5k |
| Nov 26, 2015 | No storm report | 500 | 2% | 6.5 h | – | 3.2k |
| Nov 27, 2019 | Winter storm | 619 | 2% | 6.5 h | – | 3.2k |
| Apr 27, 2025 | No storm report | 515 | 2% | 6.2 h | – | 3.2k |
| Mar 16, 2023 | No storm report | 575 | 2% | 5.5 h | – | 3.2k |
| Apr 26, 2022 | No storm report | 759 | 2% | 4.8 h | – | 3.0k |
| May 7, 2020 | No storm report | 2,418 | 8% | 1.2 h | 3.0 h | 3.0k |
| Aug 6, 2024 | No storm report | 1,005 | 3% | 3.2 h | – | 2.8k |
| Aug 16, 2023 | No storm report | 1,476 | 5% | 3.0 h | – | 2.8k |
| May 24, 2017 | No storm report | 418 | 1% | 6.5 h | – | 2.7k |
| Jun 5, 2017 | No storm report | 1,172 | 4% | 2.2 h | – | 2.6k |
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 Chippewa from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 50%
- Tornadoes 26%
- Thunderstorms 19%
- Winter storm 4.1%
Who keeps the lights on
Utilities serving Chippewa
As each utility reports to the Energy Information Administration for its whole Wisconsin territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Northern States Power Co | Investor Owned | 309 | 110 | 1.15 | 15.6 | 223k |
| Eau Claire Electric Coop | WI | 203 | 94 | 1.30 | 13.7 | 136k |
| Chippewa Valley Electric Coop | WI | – | – | – | 14.3 | 87k |
| Jump River Electric Coop Inc | WI | – | – | – | 15.6 | 81k |
| Barron Electric Coop | Cooperative | 307 | 126 | 2.18 | 16.0 | 19k |
| Bloomer Electric & Water Co | WI | – | – | – | – | 17k |
| Clark Electric Coop | Cooperative | – | – | – | 14.4 | 9.6k |
| Dunn County Electric Coop | Cooperative | 129 | 32 | 0.76 | 16.2 | 9.5k |
| City of Cornell | WI | – | – | – | – | 6.6k |
| Village of Cadott | WI | – | – | – | – | 6.2k |
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
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 31,538 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 →