County annual report · FIPS 53063
2025 Spokane County, WA Power Outage Report
In 2025, customers in Spokane County, WA went without power for an average of 3.1 hours, a total of 672K customer-hours (Washington average 7.0 hours). That ranks 27th worst of 33 Washington counties and 2030th 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 Spokane 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 17, 2025 11:15 | December 20, 2025 05:45 | 2d 18h | 27,258 | 223K |
| 2 | December 10, 2025 16:00 | December 11, 2025 00:15 | 8h 15m | 13,086 | 6,638 |
| 3 | September 8, 2025 07:15 | September 8, 2025 08:15 | 1h | 6,846 | 4,362 |
| 4 | July 2, 2025 07:15 | July 3, 2025 06:15 | 23h | 5,124 | 2,795 |
| 5 | October 12, 2025 13:30 | October 14, 2025 00:15 | 1d 10h | 4,784 | 8,707 |
| 6 | September 25, 2025 11:15 | September 26, 2025 03:15 | 16h | 3,719 | 21K |
| 7 | June 19, 2025 12:45 | June 19, 2025 21:30 | 8h 45m | 3,616 | 5,316 |
| 8 | September 21, 2025 15:15 | September 21, 2025 21:30 | 6h 15m | 3,593 | 9,799 |
| 9 | August 12, 2025 15:15 | August 14, 2025 20:15 | 2d 5h | 3,574 | 77K |
| 10 | July 8, 2025 02:15 | July 10, 2025 12:30 | 2d 10h | 3,531 | 7,342 |
Outage episodes by size in 2025: 159 reached 100+ customers, 40 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 Spokane 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 |
|---|---|---|---|---|---|
| Avista Corp | 2024 | 3.1 hrs | 1.11 | 2.3 hrs | 0.94 |
| Inland Power & Light Company | 2024 | 6.4 hrs | 1.20 | 4.6 hrs | 1.09 |
| Kootenai Electric Cooperative | 2024 | 3.1 hrs | 1.17 | 2.1 hrs | 0.81 |
| City of Cheney - (WA) | 2018 | 3.3 hrs | 0.43 | 44 min | 0.28 |
| Bonneville Power Administration | - | - | - | - | - |
| Avista Corp,avista | - | - | - | - | - |
| Modern Electric Water Company | - | - | - | - | - |
| Vera Irrigation District #15 | - | - | - | - | - |
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 ÷ 217,351 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. Spokane County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Spokane 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/spokane-county