County annual report · FIPS 41059
2023 Umatilla County, OR Power Outage Report
In 2023, customers in Umatilla County, OR went without power for an average of 2.8 hours, a total of 119K customer-hours (Oregon average 3.0 hours). That ranks 20th worst of 35 Oregon counties and 2033rd of 2,977 nationally.
Compared with OR, the US and 2022
Coverage line is EAGLE-I's share of Oregon customers tracked each year.
Biggest outages in Umatilla County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 17, 2023 17:30 | May 18, 2023 16:00 | 22h 30m | 5,907 | 2,062 |
| 2 | May 17, 2023 12:30 | May 17, 2023 16:15 | 3h 45m | 5,792 | 7,675 |
| 3 | June 26, 2023 15:15 | June 26, 2023 22:30 | 7h 15m | 2,566 | 691 |
| 4 | June 23, 2023 12:15 | June 24, 2023 00:00 | 11h 45m | 2,406 | 3,574 |
| 5 | September 21, 2023 07:15 | September 21, 2023 12:45 | 5h 30m | 2,046 | 2,134 |
| 6 | August 12, 2023 00:30 | August 12, 2023 01:15 | 45m | 1,817 | 1,141 |
| 7 | June 13, 2023 17:30 | June 14, 2023 20:45 | 1d 3h | 1,549 | 2,414 |
| 8 | September 8, 2023 11:45 | September 9, 2023 00:00 | 12h 15m | 1,538 | 560 |
| 9 | October 11, 2023 11:00 | October 12, 2023 01:00 | 14h | 1,475 | 4,480 |
| 10 | November 24, 2023 09:45 | November 24, 2023 11:15 | 1h 30m | 1,336 | 1,733 |
Outage episodes by size in 2023: 85 reached 100+ customers, 12 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 Umatilla County reported on EIA Form 861 for 2023, 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 | 2023 | 8.2 hrs | 1.42 | 1.9 hrs | 0.99 |
| Columbia Power Coop Assn Inc | 2018 | 1.6 hrs | - | 1.6 hrs | - |
| Columbia Rural Elec Assn, Inc | 2023 | 1.6 hrs | 0.67 | 1.6 hrs | 0.67 |
| Umatilla Electric Coop Assn | 2023 | 57 min | 0.55 | 47 min | 0.41 |
| 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 n/a of Oregon's customers in 2023; 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, 2023, 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/2023/oregon/umatilla-county