Power outage history
Mille Lacs County Minnesota
1.3hours
without power for the average customer in a typical year, 2018–2025
48th most of 54 in Minnesota 81% 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 Mille Lacs's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2020 was the worst well-recorded year, at 2.1 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Mille Lacs, 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 |
|---|---|---|---|---|---|---|
| Mar 29, 2020 | No storm report | 1,259 | 8% | 32 h | 22 h | 14k |
| Apr 17, 2021 | No storm report | 4,548 | 28% | 3.0 h | 2.5 h | 12k |
| Oct 31, 2024 | No storm report | 1,280 | 8% | 20 h | 20 h | 12k |
| Dec 15, 2022 | No storm report | 428 | 3% | 28 h | – | 7.7k |
| Sep 26, 2020 | No storm report | 4,552 | 28% | 1.8 h | 30 min | 7.4k |
| Feb 24, 2021 | No storm report | 688 | 4% | 8.2 h | – | 5.6k |
| Jun 21, 2022 | No storm report | 958 | 6% | 6.2 h | 5.5 h | 3.9k |
| Aug 14, 2020 | Thunderstorms | 1,910 | 12% | 6.5 h | 5.5 h | 3.9k |
| Mar 6, 2021 | No storm report | 1,596 | 10% | 2.0 h | 3.2 h | 3.0k |
| Jun 20, 2024 | No storm report | 1,062 | 6% | 2.5 h | 1.0 h | 2.4k |
| Dec 11, 2021 | No storm report | 691 | 4% | 2.8 h | – | 1.9k |
| Jul 18, 2020 | Thunderstorms | 359 | 2% | 6.0 h | – | 1.7k |
| Mar 2, 2022 | No storm report | 550 | 3% | 2.8 h | – | 1.5k |
| Jun 20, 2022 | No storm report | 1,878 | 11% | 48 min | 10 h | 1.4k |
| Jun 16, 2025 | No storm report | 562 | 3% | 3.5 h | – | 1.4k |
| May 30, 2022 | No storm report | 477 | 3% | 2.0 h | – | 951 |
| Nov 21, 2020 | No storm report | 666 | 4% | 1.2 h | – | 832 |
| Dec 23, 2023 | No storm report | 426 | 3% | 1.8 h | – | 746 |
| Dec 16, 2021 | No storm report | 491 | 3% | 1.5 h | – | 736 |
| Aug 31, 2022 | No storm report | 743 | 5% | 48 min | – | 557 |
| Mar 4, 2025 | No storm report | 276 | 2% | 2.0 h | – | 552 |
| May 16, 2025 | No storm report | 260 | 2% | 2.0 h | – | 516 |
| Nov 26, 2025 | Winter storm | 317 | 2% | 1.8 h | – | 455 |
| Aug 16, 2023 | No storm report | 281 | 2% | 1.5 h | – | 420 |
| Apr 21, 2021 | No storm report | 219 | 1% | 1.8 h | – | 383 |
| Jun 22, 2022 | No storm report | 692 | 4% | 1.0 h | – | 368 |
| Nov 23, 2021 | No storm report | 691 | 4% | 30 min | – | 346 |
| Jul 19, 2023 | No storm report | 187 | 1% | 1.8 h | – | 326 |
| Apr 13, 2022 | No storm report | 170 | 1% | 1.8 h | – | 296 |
| Apr 23, 2025 | No storm report | 203 | 1% | 1.2 h | – | 253 |
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 Mille Lacs from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 93%
- Thunderstorms 6.3%
- Winter storm 0.5%
Who keeps the lights on
Utilities serving Mille Lacs
As each utility reports to the Energy Information Administration for its whole Minnesota territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Connexus Energy | Cooperative | 54 | 38 | 0.55 | 14.1 | 136k |
| East Central Energy | Cooperative | 97 | 82 | 1.03 | 17.6 | 56k |
| Princeton Public Utils Comm | MN | 17 | 7 | 0.11 | 15.5 | 16k |
| Mille Lacs Energy Cooperative | Cooperative | 208 | 170 | 1.35 | 17.5 | 15k |
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 16,515 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 →