County annual report · FIPS 53029
2025 Island County, WA Power Outage Report
In 2025, customers in Island County, WA went without power for an average of 17.8 hours, a total of 1.6M customer-hours (Washington average 7.0 hours). That ranks 6th worst of 33 Washington counties and 421st of 3,000 nationally.
Compared with WA, the US and 2024
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Island County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 15, 2025 08:00 | December 21, 2025 14:00 | 6d 6h | 47,704 | 1.3M |
| 2 | May 22, 2025 14:00 | May 22, 2025 18:00 | 4h | 3,955 | 1,989 |
| 3 | February 25, 2025 02:30 | February 26, 2025 19:15 | 1d 16h | 3,059 | 45K |
| 4 | August 5, 2025 10:45 | August 5, 2025 12:15 | 1h 30m | 2,836 | 4,254 |
| 5 | April 17, 2025 13:45 | April 17, 2025 20:30 | 6h 45m | 2,689 | 3,190 |
| 6 | April 20, 2025 02:00 | April 20, 2025 08:45 | 6h 45m | 2,556 | 5,828 |
| 7 | March 30, 2025 22:15 | March 31, 2025 00:00 | 1h 45m | 1,831 | 2,106 |
| 8 | August 10, 2025 14:00 | August 11, 2025 01:15 | 11h 15m | 1,816 | 3,028 |
| 9 | December 26, 2025 20:30 | December 27, 2025 08:00 | 11h 30m | 1,673 | 3,709 |
| 10 | September 21, 2025 10:15 | September 21, 2025 19:45 | 9h 30m | 1,572 | 3,383 |
Outage episodes by size in 2025: 81 reached 100+ customers, 18 reached 1,000+ customers, 1 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 Island County reported on EIA Form 861 for 2025, 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 | 2024 | 19.9 hrs | 2.20 | 3.4 hrs | 1.20 |
| PUD No 1 of Snohomish County | 2024 | 10.3 hrs | 2.48 | 3.0 hrs | 1.56 |
| Puget Sound Energy Inc,pugetsoundenergy | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Washington's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 87,196 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. Island County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Island County, WA annual power outage report, 2025, 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/2025/washington/island-county