Power outage history
Miner County South Dakota
The outage record here is too thin for a reliable yearly average. Raw events are listed below.
Worst outage on record May 12, 2022 85% of customers out · 90% back in 2.0 daysEvery day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Miner's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
Miner, 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 | 904 | 85% | 2.2 d | 2.0 d | 21k |
| Jul 5, 2022 | Thunderstorms | 515 | 48% | 25 h | 23 h | 4.8k |
| Apr 11, 2019 | Winter storm | 179 | 17% | 25 h | 17 h | 3.1k |
| Apr 4, 2023 | Ice storm | 238 | 22% | 16 h | 16 h | 3.0k |
| Dec 4, 2020 | No storm report | 35 | 3% | 2.9 d | – | 2.4k |
| Sep 12, 2019 | Flooding | 346 | 32% | 6.8 h | 1.5 h | 2.2k |
| May 30, 2022 | Thunderstorms | 350 | 33% | 8.2 h | 8.5 h | 2.0k |
| Jun 11, 2025 | No storm report | 339 | 32% | 5.8 h | 5.8 h | 1.9k |
| Feb 23, 2022 | Winter storm | 346 | 32% | 6.0 h | 6.5 h | 1.7k |
| Apr 28, 2025 | No storm report | 235 | 22% | 5.8 h | 2.0 h | 1.3k |
| Aug 29, 2025 | No storm report | 341 | 32% | 3.5 h | 3.5 h | 1.2k |
| Jan 25, 2020 | No storm report | 242 | 23% | 4.0 h | 4.0 h | 968 |
| Dec 3, 2020 | No storm report | 35 | 3% | 23 h | – | 788 |
| Jun 6, 2020 | Thunderstorms | 352 | 33% | 2.8 h | 2.0 h | 788 |
| May 15, 2025 | No storm report | 236 | 22% | 3.2 h | 12 min | 764 |
| Sep 10, 2019 | No storm report | 345 | 32% | 2.0 h | 1.5 h | 689 |
| Aug 10, 2020 | No storm report | 348 | 33% | 1.8 h | 2.2 h | 609 |
| Jun 17, 2024 | No storm report | 234 | 22% | 2.5 h | 2.2 h | 585 |
| Nov 20, 2025 | No storm report | 430 | 40% | 2.8 h | 1.2 h | 502 |
| Jun 18, 2024 | No storm report | 233 | 22% | 2.0 h | 2.0 h | 466 |
| Aug 24, 2021 | No storm report | 169 | 16% | 2.8 h | 2.2 h | 455 |
| May 8, 2021 | No storm report | 352 | 33% | 1.2 h | 1.2 h | 440 |
| Jul 20, 2019 | No storm report | 229 | 21% | 2.5 h | 2.0 h | 426 |
| May 30, 2022 | Thunderstorms | 106 | 10% | 4.0 h | 9.0 h | 403 |
| Aug 15, 2025 | No storm report | 70 | 7% | 5.8 h | 5.8 h | 402 |
| Feb 26, 2023 | No storm report | 239 | 22% | 2.0 h | 1.5 h | 388 |
| Jun 16, 2022 | No storm report | 242 | 23% | 1.5 h | 1.5 h | 363 |
| Sep 13, 2021 | No storm report | 152 | 14% | 2.2 h | 1.2 h | 284 |
| Jun 20, 2015 | No storm report | 368 | 34% | 48 min | 48 min | 276 |
| May 21, 2024 | No storm report | 340 | 32% | 48 min | 1.2 h | 255 |
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 Miner from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 52%
- No storm on record 29%
- Winter storm 8.8%
- Ice storm 5.4%
- Flooding 4.2%
Who keeps the lights on
Utilities serving Miner
As each utility reports to the Energy Information Administration for its whole South Dakota 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 - Minnesota | Investor Owned | 160 | 58 | 0.88 | 13.1 | 94k |
| Sioux Valley SW Elec Coop | Cooperative | 59 | 59 | 1.64 | 13.9 | 23k |
| Southeastern Electric Coop Inc | Cooperative | 24 | 24 | – | 13.0 | 21k |
| City of Howard | SD | – | – | – | – | 7.3k |
| Central Electric Coop, Inc | Cooperative | – | – | – | 14.7 | 6.5k |
| Dakota Energy Coop Inc | Cooperative | – | – | – | 16.3 | 3.2k |
| WAPA-- Western Area Power Administration | Federal | – | – | – | – | – |
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 1,069 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 →