County annual report · FIPS 53071
2019 Walla Walla County, WA Power Outage Report
In 2019, customers in Walla Walla County, WA went without power for an average of 0.8 hours, a total of 23K customer-hours (Washington average 2.0 hours). That ranks 30th worst of 37 Washington counties and 2590th of 2,945 nationally.
Compared with WA, the US and 2018
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Walla Walla County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 14, 2019 15:15 | October 14, 2019 21:45 | 6h 30m | 1,390 | 4,301 |
| 2 | April 24, 2019 14:15 | April 24, 2019 20:30 | 6h 15m | 690 | 724 |
| 3 | February 5, 2019 05:30 | February 5, 2019 10:30 | 5h | 585 | 1,573 |
| 4 | September 11, 2019 09:30 | September 11, 2019 14:15 | 4h 45m | 530 | 1,461 |
| 5 | May 14, 2019 03:00 | May 14, 2019 09:00 | 6h | 443 | 340 |
| 6 | October 29, 2019 00:45 | October 29, 2019 16:45 | 16h | 397 | 772 |
| 7 | March 24, 2019 22:30 | March 25, 2019 05:30 | 7h | 395 | 234 |
| 8 | April 8, 2019 15:45 | April 10, 2019 00:45 | 1d 9h | 395 | 833 |
| 9 | July 12, 2019 14:00 | July 13, 2019 00:30 | 10h 30m | 371 | 1,352 |
| 10 | February 16, 2019 21:45 | February 17, 2019 00:00 | 2h 15m | 278 | 279 |
Outage episodes by size in 2019: 19 reached 100+ customers, 1 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 2019, 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 | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| Inland Power & Light Company | 2018 | 3.3 hrs | 1.55 | 3.3 hrs | 1.55 |
| Columbia Rural Elec Assn, Inc | 2018 | 2.6 hrs | 0.95 | 2.6 hrs | 0.95 |
| 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 86% of Washington's customers in 2019; 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, 2019, 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/2019/washington/walla-walla-county