County annual report · FIPS 53071
2025 Walla Walla County, WA Power Outage Report
In 2025, customers in Walla Walla County, WA went without power for an average of 3.8 hours, a total of 115K customer-hours (Washington average 7.0 hours). That ranks 25th worst of 33 Washington counties and 1814th 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 Walla Walla 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 | August 3, 2025 15:30 | August 3, 2025 23:30 | 8h | 8,704 | 38K |
| 2 | March 6, 2025 05:15 | March 6, 2025 05:45 | 30m | 4,796 | 1,950 |
| 3 | September 29, 2025 22:00 | September 30, 2025 05:45 | 7h 45m | 3,048 | 1,677 |
| 4 | June 23, 2025 15:00 | June 24, 2025 03:15 | 12h 15m | 1,769 | 1,659 |
| 5 | March 28, 2025 08:15 | March 28, 2025 11:45 | 3h 30m | 1,683 | 5,624 |
| 6 | September 5, 2025 21:45 | September 5, 2025 22:00 | 15m | 1,570 | 393 |
| 7 | September 2, 2025 03:00 | September 2, 2025 05:15 | 2h 15m | 1,483 | 1,507 |
| 8 | June 13, 2025 15:45 | June 13, 2025 21:00 | 5h 15m | 1,192 | 2,433 |
| 9 | June 19, 2025 16:30 | June 19, 2025 22:00 | 5h 30m | 1,189 | 1,212 |
| 10 | October 25, 2025 05:15 | October 25, 2025 07:45 | 2h 30m | 1,117 | 2,297 |
Outage episodes by size in 2025: 60 reached 100+ customers, 11 reached 1,000+ customers, 0 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 Walla Walla 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2024 | 4.6 hrs | 1.67 | 2.0 hrs | 1.11 |
| Inland Power & Light Company | 2024 | 6.4 hrs | 1.20 | 4.6 hrs | 1.09 |
| Columbia Rural Elec Assn, Inc | 2024 | 4.3 hrs | 1.96 | 3.6 hrs | 1.96 |
| Bonneville Power Administration | - | - | - | - | - |
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 ÷ 30,050 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. Walla Walla County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Walla Walla 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/walla-walla-county