County annual report · FIPS 53029
2018 Island County, WA Power Outage Report
In 2018, customers in Island County, WA went without power for an average of 3.3 hours, a total of 287K customer-hours (Washington average 2.1 hours). That ranks 9th worst of 27 Washington counties and 1413th of 2,798 nationally.
Compared with WA, the US and 2017
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Island County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 11, 2018 20:30 | August 12, 2018 08:00 | 11h 30m | 17,891 | 9,963 |
| 2 | August 21, 2018 07:15 | August 21, 2018 09:15 | 2h | 13,052 | 26K |
| 3 | February 17, 2018 19:15 | February 19, 2018 03:45 | 1d 8h | 9,688 | 12K |
| 4 | December 23, 2018 09:00 | December 30, 2018 18:30 | 7d 9h | 7,541 | 126K |
| 5 | October 31, 2018 21:15 | November 7, 2018 15:30 | 6d 18h | 2,540 | 17K |
| 6 | December 13, 2018 06:00 | December 14, 2018 00:45 | 18h 45m | 1,876 | 4,856 |
| 7 | January 21, 2018 14:15 | January 22, 2018 05:30 | 15h 15m | 1,457 | 5,882 |
| 8 | September 29, 2018 20:45 | September 30, 2018 10:45 | 14h | 1,393 | 5,133 |
| 9 | December 20, 2018 18:00 | December 20, 2018 19:15 | 1h 15m | 1,299 | 846 |
| 10 | December 15, 2018 12:30 | December 18, 2018 14:45 | 3d 2h | 1,240 | 11K |
Outage episodes by size in 2018: 48 reached 100+ customers, 15 reached 1,000+ customers, 2 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 2018, 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 |
| Puget Sound Energy Inc,pugetsoundenergy | - | - | - | - | - |
| PUD No 1 of Snohomish County | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 71% of Washington's customers in 2018; 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, 2018, 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/2018/washington/island-county