Power outages in Washington
In 2025, the average Washington customer was without power for 6.4 hours (383.3 minutes) over the whole year. That is about 2.1 hours more than the US median of 4.3 hours (258.7 minutes).
Trend
Yearly outage time has gone up and down since 2020, with no steady direction. The worst year was 2024 at 10.4 hours per customer, and the best was 2023 at 2.5 hours.
Utilities in 2025
In 2025, PUD No 1 of Benton County had the lowest SAIDI at 36.1 minutes (0.6 hours). PUD No 1 of Grays Harbor County had the highest at 1,036.0 minutes (17.3 hours).
| Utility | Customers | Hours / yr | Interruptions |
|---|---|---|---|
| PUD No 1 of Grays Harbor County | 45,923 | 17.3 | 2.8 |
| PUD No 1 of Jefferson County | 21,336 | 12.9 | 3.8 |
| Peninsula Light Company | 35,588 | 12.4 | 4.2 |
| PUD No 1 of Lewis County - (WA) | 36,079 | 11.0 | 3.7 |
| PUD No 2 of Pacific County | 19,879 | 9.8 | 1.4 |
| Puget Sound Energy Inc | 1,258,468 | 9.7 | 1.6 |
| Inland Power & Light Company | 48,907 | 8.9 | 2.5 |
| Big Bend Electric Coop, Inc | 10,891 | 7.5 | 1.3 |
| PUD No 3 of Mason County | 37,168 | 7.0 | 1.9 |
| PUD No 1 of Clallam County | 34,387 | 6.3 | 0.9 |
| PUD No 1 of Snohomish County - (WA) | 390,607 | 5.7 | 1.7 |
| PUD No 1 of Chelan County - (WA) | 51,646 | 5.5 | 0.8 |
| Orcas Power & Light Coop | 15,337 | 5.4 | 2.3 |
| Benton Rural Electric Assn | 16,702 | 5.1 | 1.0 |
| PUD No 1 of Clark County - (WA) | 238,063 | 5.0 | 1.6 |
| PUD No 1 of Klickitat County | 14,344 | 4.5 | 0.9 |
| PUD No 1 of Cowlitz County | 54,672 | 3.6 | 1.3 |
| Avista Corp | 277,040 | 3.3 | 1.0 |
| City of Tacoma - (WA) | 161,290 | 2.9 | 0.9 |
| City of Seattle - (WA) | 527,764 | 2.6 | 1.0 |
| City of Centralia - (WA) | 10,938 | 2.4 | 0.7 |
| PUD No 1 of Okanogan County | 22,354 | 2.2 | 0.8 |
| PacifiCorp | 140,273 | 1.7 | 0.6 |
| PUD No 1 of Franklin County | 35,130 | 1.5 | 0.6 |
| PUD No 2 of Grant County - (WA) | 57,382 | 1.4 | 0.4 |
What this means for backup power
For everyday outages, enter 4.4 hours in the calculator, which is the average length of one interruption. To ride out a year like 2024, size for 10.4 hours, which is all of that year's outage time added together.
FAQ
How long does a typical power outage last in Washington?
One interruption lasts about 4.4 hours on average. This is different from SAIDI, which adds up all outage time in a year.
How many hours a year are Washington customers without power?
In 2025 the average customer had 6.4 hours (383.3 minutes) of outage time, spread over about 1.4 interruptions. The US median in our comparison of 50 states was 4.3 hours.
What outage length should I enter in the backup power calculator?
Use 4.4 hours for a typical single outage. If you want to plan for a bad year like 2024, use 10.4 hours.
Utility pages
Source: U.S. EIA Form 861 Reliability file. Data snapshot 2026-11-05.