County annual report · FIPS 53071
2020 Walla Walla County, WA Power Outage Report
In 2020, customers in Walla Walla County, WA went without power for an average of 2.2 hours, a total of 65K customer-hours (Washington average 4.2 hours). That ranks 27th worst of 37 Washington counties and 2186th of 3,019 nationally.
Compared with WA, the US and 2019
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Walla Walla County, 2020
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 20, 2020 14:45 | August 20, 2020 20:30 | 5h 45m | 4,594 | 7,210 |
| 2 | September 7, 2020 18:45 | September 9, 2020 04:15 | 1d 9h | 3,326 | 20K |
| 3 | September 26, 2020 11:30 | September 26, 2020 22:15 | 10h 45m | 2,018 | 6,094 |
| 4 | November 7, 2020 15:15 | November 7, 2020 17:15 | 2h | 1,931 | 974 |
| 5 | November 13, 2020 21:45 | November 14, 2020 00:00 | 2h 15m | 1,705 | 432 |
| 6 | September 19, 2020 16:30 | September 20, 2020 01:30 | 9h | 1,047 | 679 |
| 7 | January 18, 2020 05:00 | January 18, 2020 09:15 | 4h 15m | 401 | 1,002 |
| 8 | October 22, 2020 23:15 | October 23, 2020 07:00 | 7h 45m | 389 | 1,110 |
| 9 | September 24, 2020 07:30 | September 25, 2020 02:15 | 18h 45m | 388 | 2,190 |
| 10 | July 10, 2020 23:15 | July 11, 2020 00:30 | 1h 15m | 317 | 363 |
Outage episodes by size in 2020: 29 reached 100+ customers, 6 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 2020, 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 | 2020 | 6.8 hrs | 1.88 | 2.0 hrs | 1.22 |
| Inland Power & Light Company | 2020 | 13.3 hrs | 1.97 | 3.9 hrs | 1.31 |
| Columbia Rural Elec Assn, Inc | 2020 | 5.2 hrs | 2.61 | 3.9 hrs | 2.20 |
| 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 87% of Washington's customers in 2020; 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, 2020, 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/2020/washington/walla-walla-county