County annual report · FIPS 53077
2018 Yakima County, WA Power Outage Report
In 2018, customers in Yakima County, WA went without power for an average of 2.3 hours, a total of 282K customer-hours (Washington average 2.1 hours). That ranks 13th worst of 27 Washington counties and 1705th of 2,798 nationally.
Compared with WA, the US and 2017
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Yakima County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 9, 2018 09:30 | March 9, 2018 12:00 | 2h 30m | 14,852 | 8,931 |
| 2 | May 6, 2018 20:00 | May 7, 2018 12:00 | 16h | 10,618 | 7,430 |
| 3 | August 26, 2018 12:30 | August 26, 2018 15:15 | 2h 45m | 10,037 | 16K |
| 4 | February 23, 2018 19:00 | February 24, 2018 04:00 | 9h | 6,170 | 6,029 |
| 5 | November 2, 2018 15:45 | November 3, 2018 07:45 | 16h | 4,259 | 6,871 |
| 6 | August 23, 2018 16:30 | August 25, 2018 05:45 | 1d 13h | 3,868 | 59K |
| 7 | August 11, 2018 02:45 | August 13, 2018 01:00 | 1d 22h | 3,856 | 17K |
| 8 | October 23, 2018 21:15 | October 24, 2018 00:30 | 3h 15m | 2,324 | 3,283 |
| 9 | August 9, 2018 09:00 | August 10, 2018 00:45 | 15h 45m | 2,154 | 7,240 |
| 10 | September 16, 2018 20:45 | September 16, 2018 23:00 | 2h 15m | 2,152 | 3,252 |
Outage episodes by size in 2018: 88 reached 100+ customers, 32 reached 1,000+ customers, 3 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 Yakima County reported on EIA Form 861 for 2018, 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 |
| Bonneville Power Administration | - | - | - | - | - |
| PUD No 1 of Klickitat County | - | - | - | - | - |
| Benton Rural Electric Assn | - | - | - | - | - |
| Yakama Power | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 71% of Washington's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 120,501 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. Yakima County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Yakima County, WA annual power outage report, 2018, 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/2018/washington/yakima-county