Power outages in Alaska
In 2025, the average Alaska customer was without power for 9.0 hours (540.9 minutes). That is about twice the US median of 4.3 hours (258.7 minutes) across 50 states compared.
Trend
Outage time rose from 4.5 hours in 2020 to a peak of 9.6 hours in 2022. It fell to 5.5 hours in 2024, then climbed back to 9.0 hours in 2025.
Utilities in 2025
Golden Valley Elec Assn Inc had the lowest 2025 SAIDI at 3.5 hours (211.6 minutes). Matanuska Electric Assn Inc had the highest at 18.9 hours (1,133.7 minutes).
| Utility | Customers | Hours / yr | Interruptions |
|---|---|---|---|
| Matanuska Electric Assn Inc | 71,871 | 18.9 | 4.1 |
| Homer Electric Assn Inc | 34,587 | 13.4 | 3.4 |
| Alaska Electric Light & Power Co. | 17,935 | 7.3 | 7.7 |
| Chugach Electric Assn Inc | 113,830 | 5.0 | 2.0 |
| Golden Valley Elec Assn Inc | 48,592 | 3.5 | 2.0 |
What this means for backup power
For everyday outages, enter 2.8 hours in the calculator, which is the average length of one interruption. To ride out a year like 2022, size for 9.6 hours, the total outage time that year.
FAQ
What does SAIDI mean for my home?
SAIDI is the total time an average customer is without power in a year. It is not the length of one outage. In Alaska, one interruption lasts 2.8 hours on average.
How often does the power go out in Alaska?
In 2025, the average customer had 3.2 interruptions. Each lasted about 2.8 hours on average.
How much backup power should I plan for?
For everyday outages, enter 2.8 hours in the calculator. If you want to cover a year as bad as 2022, plan for 9.6 hours in total.
Utility pages
Source: U.S. EIA Form 861 Reliability file. Data snapshot 2026-11-05.