County annual report · FIPS 53033
2019 King County, WA Power Outage Report
In 2019, customers in King County, WA went without power for an average of 2.9 hours, a total of 2.8M customer-hours (Washington average 2.0 hours). That ranks 15th worst of 37 Washington counties and 1708th of 2,945 nationally.
Compared with WA, the US and 2018
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in King County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 6, 2019 02:30 | January 10, 2019 13:30 | 4d 11h | 50,401 | 441K |
| 2 | February 6, 2019 10:45 | February 28, 2019 13:30 | 22d 2h | 36,557 | 543K |
| 3 | April 3, 2019 16:00 | April 7, 2019 10:00 | 3d 18h | 17,444 | 75K |
| 4 | May 9, 2019 14:15 | May 16, 2019 14:30 | 7d | 17,140 | 27K |
| 5 | January 31, 2019 08:45 | February 6, 2019 08:00 | 5d 23h | 15,252 | 158K |
| 6 | September 4, 2019 10:45 | October 6, 2019 21:00 | 32d 10h | 12,823 | 334K |
| 7 | July 16, 2019 12:15 | July 25, 2019 08:45 | 8d 20h | 10,217 | 48K |
| 8 | October 7, 2019 09:45 | October 9, 2019 14:15 | 2d 4h | 7,972 | 7,774 |
| 9 | May 6, 2019 09:30 | May 7, 2019 08:45 | 23h 15m | 7,463 | 8,344 |
| 10 | July 27, 2019 19:00 | August 23, 2019 10:15 | 26d 15h | 7,259 | 139K |
Outage episodes by size in 2019: 88 reached 100+ customers, 51 reached 1,000+ customers, 7 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 2019, 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 | 2018 | 7.2 hrs | 1.52 | 2.4 hrs | 0.99 |
| City of Tacoma - (WA) | 2018 | 86 min | 0.77 | 56 min | 0.49 |
| City of Seattle - (WA) | 2018 | 2.2 hrs | 0.71 | 58 min | 0.50 |
| 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 86% of Washington's customers in 2019; 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, 2019, 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/2019/washington/king-county