County annual report · FIPS 53063
2021 Spokane County, WA Power Outage Report
In 2021, customers in Spokane County, WA went without power for an average of 10.7 hours, a total of 2.3M customer-hours (Washington average 8.7 hours). That ranks 10th worst of 33 Washington counties and 743rd of 2,974 nationally.
Compared with WA, the US and 2020
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Spokane County, 2021
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 13, 2021 07:00 | January 20, 2021 04:45 | 6d 21h | 48,590 | 1.7M |
| 2 | April 22, 2021 11:30 | April 23, 2021 06:15 | 18h 45m | 21,679 | 83K |
| 3 | April 19, 2021 02:15 | April 21, 2021 03:45 | 2d 1h | 9,643 | 83K |
| 4 | November 15, 2021 16:00 | November 17, 2021 04:15 | 1d 12h | 8,661 | 46K |
| 5 | January 30, 2021 03:30 | January 30, 2021 12:45 | 9h 15m | 8,593 | 11K |
| 6 | October 4, 2021 09:30 | October 4, 2021 13:30 | 4h | 8,581 | 18K |
| 7 | June 28, 2021 14:00 | June 30, 2021 17:00 | 2d 3h | 8,571 | 58K |
| 8 | August 31, 2021 16:00 | September 1, 2021 13:00 | 21h | 4,632 | 8,800 |
| 9 | June 15, 2021 00:45 | June 16, 2021 06:30 | 1d 5h | 4,493 | 20K |
| 10 | August 13, 2021 12:00 | August 25, 2021 01:00 | 11d 13h | 3,816 | 33K |
Outage episodes by size in 2021: 152 reached 100+ customers, 50 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 2021, 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 | 2021 | 16.1 hrs | 2.31 | 2.9 hrs | 1.29 |
| Inland Power & Light Company | 2021 | 11.9 hrs | 1.85 | 3.4 hrs | 1.24 |
| Kootenai Electric Cooperative | 2021 | 40.2 hrs | 3.25 | 3.5 hrs | 1.38 |
| 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 87% of Washington's customers in 2021; 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, 2021, 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/2021/washington/spokane-county