2021 Alaska Power Outage Report
In 2021, the average Alaska customer went without power for about 7.0 hours, the 14th worst of 51 states (US average 8.4 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
7.0
vs prior year
▲ 68%
vs 2020
Customer-hours out
1.9M
Peak customers out
17,905
across the state at once
EAGLE-I coverage
68%
of AK customers
Counties reporting
7
Alaska year over year
All 7 Alaska counties, 2021
Ranked by average hours without power per customer. Each county links to its annual report.
| # | County | Hrs / customer | Customer-hours | Customers | Peak out | Events |
|---|---|---|---|---|---|---|
| 1 | Denali Borough | 23.0 | 23K | 1,014 | 1,014 | 68 |
| 2 | Fairbanks North Star Borough | 13.1 | 578K | 44,163 | 17,802 | 792 |
| 3 | Kenai Peninsula Borough | 10.5 | 453K | 43,315 | 7,503 | 420 |
| 4 | Matanuska-Susitna Borough | 8.5 | 510K | 59,763 | 8,286 | 687 |
| 5 | Southeast Fairbanks Census Area | 6.4 | 13K | 2,069 | 1,235 | 92 |
| 6 | Anchorage Municipality | 2.5 | 278K | 110,430 | 11,496 | 644 |
| 7 | Yukon-Koyukuk Census Area | 0.5 | 1,527 | 3,197 | 391 | 29 |
Biggest Alaska outages of 2021
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Fairbanks North Star Borough, AK | December 25, 2021 17:00 | December 31, 2021 00:15 | 5d 7h | 17,802 | 371K |
| 2 | Fairbanks North Star Borough, AK | June 3, 2021 16:15 | June 3, 2021 23:00 | 6h 45m | 13,571 | 9,207 |
| 3 | Anchorage Municipality, AK | December 2, 2021 09:45 | December 2, 2021 11:30 | 1h 45m | 11,496 | 5,749 |
| 4 | Matanuska-Susitna Borough, AK | October 29, 2021 16:30 | November 1, 2021 13:00 | 2d 20h | 8,286 | 129K |
| 5 | Matanuska-Susitna Borough, AK | September 23, 2021 17:45 | September 27, 2021 09:00 | 3d 15h | 7,675 | 62K |
| 6 | Kenai Peninsula Borough, AK | December 28, 2021 17:45 | December 31, 2021 00:15 | 2d 6h | 7,503 | 23K |
| 7 | Fairbanks North Star Borough, AK | October 3, 2021 05:30 | October 5, 2021 12:00 | 2d 6h | 7,237 | 74K |
| 8 | Kenai Peninsula Borough, AK | November 27, 2021 04:15 | November 29, 2021 22:30 | 2d 18h | 7,143 | 54K |
| 9 | Anchorage Municipality, AK | September 22, 2021 13:30 | September 26, 2021 08:30 | 3d 19h | 6,413 | 65K |
| 10 | Fairbanks North Star Borough, AK | December 20, 2021 12:15 | December 20, 2021 21:45 | 9h 30m | 6,212 | 23K |
| 11 | Matanuska-Susitna Borough, AK | January 18, 2021 17:45 | January 18, 2021 23:30 | 5h 45m | 6,146 | 7,829 |
| 12 | Matanuska-Susitna Borough, AK | September 20, 2021 19:45 | September 22, 2021 13:30 | 1d 17h | 5,920 | 86K |
| 13 | Matanuska-Susitna Borough, AK | March 12, 2021 19:00 | March 12, 2021 20:00 | 1h | 5,677 | 4,258 |
| 14 | Kenai Peninsula Borough, AK | August 25, 2021 08:15 | August 25, 2021 14:00 | 5h 45m | 4,960 | 6,336 |
| 15 | Fairbanks North Star Borough, AK | May 18, 2021 22:15 | May 19, 2021 00:30 | 2h 15m | 4,907 | 1,229 |
| 16 | Fairbanks North Star Borough, AK | July 8, 2021 19:15 | July 8, 2021 23:30 | 4h 15m | 4,565 | 5,609 |
| 17 | Fairbanks North Star Borough, AK | December 19, 2021 20:30 | December 20, 2021 06:45 | 10h 15m | 4,475 | 2,961 |
| 18 | Fairbanks North Star Borough, AK | December 23, 2021 14:00 | December 23, 2021 21:00 | 7h | 4,434 | 1,147 |
| 19 | Matanuska-Susitna Borough, AK | July 24, 2021 19:30 | July 24, 2021 23:00 | 3h 30m | 4,359 | 11K |
| 20 | Anchorage Municipality, AK | April 30, 2021 05:45 | April 30, 2021 19:30 | 13h 45m | 4,098 | 5,348 |
| 21 | Fairbanks North Star Borough, AK | June 21, 2021 18:00 | June 21, 2021 18:45 | 45m | 3,824 | 956 |
| 22 | Kenai Peninsula Borough, AK | May 12, 2021 23:45 | May 13, 2021 01:00 | 1h 15m | 3,763 | 2,823 |
| 23 | Fairbanks North Star Borough, AK | December 17, 2021 18:30 | December 18, 2021 01:00 | 6h 30m | 3,726 | 942 |
| 24 | Matanuska-Susitna Borough, AK | September 13, 2021 00:45 | September 14, 2021 01:15 | 1d | 3,461 | 8,362 |
| 25 | Matanuska-Susitna Borough, AK | July 18, 2021 19:30 | July 19, 2021 11:00 | 15h 30m | 3,289 | 14K |
EAGLE-I tracked about 68% of Alaska's electricity customers in 2021; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2021 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.