Power outage history
Yukon-Koyukuk Census Area Alaska
The outage record here is too thin for a reliable yearly average. Raw events are listed below.
Worst outage on record Jul 5, 2025 13% of customers out · 90% back in 3.1 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 Yukon-Koyukuk's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
Yukon-Koyukuk, 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 |
|---|---|---|---|---|---|---|
| Jul 3, 2025 | No storm report | 407 | 13% | 4.9 d | 3.1 d | 9.2k |
| Jul 25, 2022 | No storm report | 393 | 12% | 9.5 h | 15 h | 3.4k |
| Oct 21, 2024 | Winter storm | 124 | 4% | 15 h | – | 1.8k |
| Jun 19, 2024 | No storm report | 404 | 13% | 3.8 h | 3.8 h | 1.5k |
| Jul 9, 2020 | No storm report | 383 | 12% | 3.5 h | 3.0 h | 1.3k |
| Feb 4, 2020 | No storm report | 368 | 12% | 3.5 h | 3.0 h | 1.3k |
| Feb 28, 2023 | No storm report | 401 | 13% | 3.2 h | 3.0 h | 1.2k |
| Feb 2, 2019 | No storm report | 374 | 12% | 3.2 h | 3.2 h | 1.2k |
| Jun 5, 2025 | No storm report | 406 | 13% | 2.8 h | 2.8 h | 1.1k |
| Jun 6, 2019 | No storm report | 375 | 12% | 2.8 h | 7.8 h | 1.0k |
| Feb 7, 2025 | No storm report | 403 | 13% | 2.5 h | 2.0 h | 1.0k |
| Jul 13, 2020 | No storm report | 366 | 11% | 8.0 h | 8.0 h | 999 |
| Aug 3, 2019 | No storm report | 387 | 12% | 2.2 h | 1.5 h | 862 |
| Apr 19, 2021 | No storm report | 115 | 4% | 6.5 h | – | 748 |
| Jul 5, 2024 | No storm report | 125 | 4% | 4.8 h | – | 594 |
| Jun 22, 2022 | No storm report | 126 | 4% | 5.8 h | – | 584 |
| Oct 26, 2020 | No storm report | 116 | 4% | 5.0 h | – | 580 |
| Dec 12, 2024 | No storm report | 403 | 13% | 1.8 h | 1.2 h | 552 |
| Feb 19, 2022 | No storm report | 393 | 12% | 1.2 h | 1.2 h | 491 |
| Feb 22, 2022 | No storm report | 391 | 12% | 1.2 h | 1.0 h | 450 |
| Jul 3, 2024 | No storm report | 78 | 2% | 5.5 h | – | 426 |
| Nov 21, 2020 | No storm report | 227 | 7% | 4.0 h | 3.8 h | 418 |
| Jun 13, 2017 | No storm report | 364 | 11% | 1.8 h | 1.0 h | 415 |
| Jan 17, 2020 | No storm report | 352 | 11% | 2.5 h | 2.5 h | 407 |
| Sep 28, 2025 | No storm report | 121 | 4% | 3.8 h | – | 373 |
| Oct 18, 2018 | No storm report | 683 | 21% | 30 min | 30 min | 342 |
| May 26, 2022 | No storm report | 122 | 4% | 2.8 h | – | 336 |
| Feb 1, 2022 | No storm report | 394 | 12% | 48 min | 48 min | 296 |
| Jan 9, 2020 | No storm report | 240 | 8% | 2.2 h | 2.2 h | 290 |
| Oct 23, 2020 | No storm report | 380 | 12% | 48 min | 48 min | 285 |
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 Yukon-Koyukuk from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 95%
- Winter storm 5.0%
Who keeps the lights on
Utilities serving Yukon-Koyukuk
As each utility reports to the Energy Information Administration for its whole Alaska territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Golden Valley Elec Assn Inc | Cooperative | 212 | 212 | 1.96 | 31.5 | 41k |
| Alaska Village Elec Coop, Inc | Cooperative | – | – | – | 65.9 | 7.9k |
| Alaska Power and Telephone Co | Investor Owned | 8 | – | 8.85 | 41.8 | 5.8k |
| Galena Electric Utility | AK | – | – | – | – | 843 |
| McGrath Light & Power Co | AK | – | – | – | – | 507 |
| Tanana Power Co Inc | AK | – | – | – | – | 306 |
| Gold Country Energy | AK | – | – | – | – | 247 |
| Hughes Power & Light Co | AK | – | – | – | – | 180 |
| TDX Manley Generating LLC | AK | – | – | – | – | 156 |
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
- Denali 21 h
- Southeast Fairbanks 13 h
- Matanuska-Susitna 11 h
- Fairbanks North Star 7.9 h
- Yukon-Koyukuk (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 3,197 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 →