County annual report · FIPS 41059
2021 Umatilla County, OR Power Outage Report
In 2021, customers in Umatilla County, OR went without power for an average of 4.5 hours, a total of 196K customer-hours (Oregon average 20.6 hours). That ranks 17th worst of 35 Oregon counties and 1433rd of 2,974 nationally.
Compared with OR, the US and 2020
Coverage line is EAGLE-I's share of Oregon customers tracked each year.
Biggest outages in Umatilla County, 2021
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 9, 2021 21:45 | August 10, 2021 00:30 | 2h 45m | 12,339 | 12K |
| 2 | May 14, 2021 15:30 | May 17, 2021 19:00 | 3d 3h | 2,957 | 62K |
| 3 | January 13, 2021 08:15 | January 14, 2021 06:30 | 22h 15m | 2,365 | 6,811 |
| 4 | June 17, 2021 16:00 | June 17, 2021 21:15 | 5h 15m | 2,056 | 523 |
| 5 | November 15, 2021 22:15 | November 16, 2021 10:15 | 12h | 1,854 | 2,152 |
| 6 | September 28, 2021 04:00 | September 28, 2021 12:30 | 8h 30m | 1,819 | 2,511 |
| 7 | January 17, 2021 19:30 | January 17, 2021 20:30 | 1h | 1,786 | 967 |
| 8 | November 17, 2021 00:45 | November 17, 2021 14:45 | 14h | 1,783 | 480 |
| 9 | March 29, 2021 03:00 | April 1, 2021 02:30 | 2d 23h | 1,604 | 4,090 |
| 10 | August 27, 2021 06:45 | August 30, 2021 20:45 | 3d 14h | 1,476 | 9,677 |
Outage episodes by size in 2021: 65 reached 100+ customers, 15 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 Umatilla County reported on EIA Form 861 for 2021, 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 | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
| Columbia Power Coop Assn Inc | 2018 | 1.6 hrs | - | 1.6 hrs | - |
| Columbia Rural Elec Assn, Inc | 2021 | 3.7 hrs | 1.94 | 3.1 hrs | 1.80 |
| Umatilla Electric Coop Assn | 2021 | 2.6 hrs | 1.37 | 1.8 hrs | 1.06 |
| Bonneville Power Administration | - | - | - | - | - |
| Columbia Basin Elec Cooperative, Inc | - | - | - | - | - |
| City of Hermiston | - | - | - | - | - |
| City of Milton-Freewater- (OR) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Oregon's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 43,275 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. Umatilla County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Umatilla County, OR annual power outage report, 2021, 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/2021/oregon/umatilla-county