County annual report · FIPS 53071
2017 Walla Walla County, WA Power Outage Report
In 2017, customers in Walla Walla County, WA went without power for an average of 6.9 hours, a total of 206K customer-hours (Washington average 3.3 hours). That ranks 7th worst of 31 Washington counties and 768th of 2,786 nationally.
Compared with WA, the US
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Walla Walla County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 7, 2017 16:30 | November 8, 2017 05:00 | 12h 30m | 16,800 | 57K |
| 2 | December 29, 2017 11:45 | December 31, 2017 00:15 | 1d 12h | 9,558 | 134K |
| 3 | December 20, 2017 21:30 | December 20, 2017 21:45 | 15m | 1,768 | 442 |
| 4 | December 20, 2017 01:45 | December 20, 2017 09:15 | 7h 30m | 1,578 | 1,992 |
| 5 | November 20, 2017 17:30 | November 21, 2017 09:30 | 16h | 803 | 2,313 |
| 6 | September 19, 2017 20:45 | September 20, 2017 01:15 | 4h 30m | 564 | 160 |
| 7 | October 22, 2017 00:00 | October 22, 2017 20:30 | 20h 30m | 487 | 1,191 |
| 8 | August 6, 2017 11:00 | August 6, 2017 13:45 | 2h 45m | 393 | 1,081 |
| 9 | November 5, 2017 17:00 | November 6, 2017 00:45 | 7h 45m | 352 | 2,074 |
| 10 | October 24, 2017 00:00 | October 24, 2017 04:30 | 4h 30m | 311 | 242 |
Outage episodes by size in 2017: 15 reached 100+ customers, 4 reached 1,000+ customers, 1 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 2017, 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 | 2017 | 5.2 hrs | 2.01 | 2.4 hrs | 1.43 |
| Inland Power & Light Company | 2017 | 4.1 hrs | 2.05 | 4.1 hrs | 2.05 |
| Bonneville Power Administration | - | - | - | - | - |
| Columbia Rural Elec Assn, Inc | - | - | - | - | - |
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 2017; 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, 2017, 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/2017/washington/walla-walla-county