County annual report · FIPS 53033
2022 King County, WA Power Outage Report
In 2022, customers in King County, WA went without power for an average of 5.1 hours, a total of 4.9M customer-hours (Washington average 6.6 hours). That ranks 18th worst of 33 Washington counties and 1392nd of 2,976 nationally.
Compared with WA, the US and 2021
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in King County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 27, 2022 12:30 | November 13, 2022 07:45 | 16d 19h | 64,404 | 959K |
| 2 | November 25, 2022 14:45 | December 14, 2022 05:45 | 18d 15h | 63,606 | 980K |
| 3 | December 17, 2022 15:15 | January 1, 2023 00:00 | 14d 8h | 54,759 | 949K |
| 4 | March 28, 2022 02:15 | April 16, 2022 06:45 | 19d 4h | 29,996 | 274K |
| 5 | May 9, 2022 15:00 | May 22, 2022 05:15 | 12d 14h | 26,989 | 205K |
| 6 | May 5, 2022 13:15 | May 6, 2022 11:00 | 21h 45m | 15,099 | 26K |
| 7 | November 15, 2022 14:15 | November 24, 2022 10:30 | 8d 20h | 13,826 | 122K |
| 8 | February 6, 2022 19:15 | February 16, 2022 09:15 | 9d 14h | 13,604 | 28K |
| 9 | August 9, 2022 12:30 | August 28, 2022 04:15 | 18d 15h | 8,883 | 127K |
| 10 | March 2, 2022 06:15 | March 12, 2022 09:15 | 10d 3h | 7,864 | 56K |
Outage episodes by size in 2022: 56 reached 100+ customers, 36 reached 1,000+ customers, 8 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving King County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Puget Sound Energy Inc | 2022 | 7.5 hrs | 1.66 | 3.3 hrs | 1.09 |
| City of Tacoma - (WA) | 2022 | 2.5 hrs | 1.05 | 76 min | 0.73 |
| City of Seattle - (WA) | 2022 | 2.3 hrs | 0.76 | 1.7 hrs | 0.63 |
| Bonneville Power Administration | - | - | - | - | - |
| Puget Sound Energy Inc,pugetsoundenergy | - | - | - | - | - |
| PUD No 1 of Chelan County | - | - | - | - | - |
| Tanner Electric Coop | - | - | - | - | - |
| City of Milton - (WA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 87% of Washington's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 963,744 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. King County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), King County, WA annual power outage report, 2022, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2022/washington/king-county