County annual report · FIPS 41055
2025 Sherman County, OR Power Outage Report
In 2025, customers in Sherman County, OR went without power for an average of 13.1 hours, a total of 18K customer-hours (Oregon average 6.0 hours). That ranks 5th worst of 35 Oregon counties and 590th of 3,000 nationally.
Compared with OR, the US and 2024
Coverage line is EAGLE-I's share of Oregon customers tracked each year.
Biggest outages in Sherman County, 2025
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 5, 2025 04:15 | October 5, 2025 08:30 | 4h 15m | 1,025 | 4,356 |
| 2 | August 23, 2025 19:00 | August 23, 2025 23:30 | 4h 30m | 1,022 | 2,477 |
| 3 | August 26, 2025 16:15 | August 26, 2025 20:30 | 4h 15m | 1,022 | 2,816 |
| 4 | May 28, 2025 01:45 | May 28, 2025 05:00 | 3h 15m | 1,019 | 3,062 |
| 5 | June 8, 2025 03:15 | June 8, 2025 06:45 | 3h 30m | 510 | 1,239 |
| 6 | June 8, 2025 11:45 | June 8, 2025 16:15 | 4h 30m | 509 | 1,218 |
| 7 | June 30, 2025 23:30 | July 1, 2025 03:45 | 4h 15m | 509 | 1,274 |
| 8 | September 9, 2025 08:00 | September 9, 2025 22:15 | 14h 15m | 492 | 978 |
| 9 | September 10, 2025 00:15 | September 10, 2025 01:45 | 1h 30m | 63 | 95 |
| 10 | October 22, 2025 01:15 | October 22, 2025 07:15 | 6h | 52 | 243 |
Outage episodes by size in 2025: 8 reached 100+ customers, 4 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 Sherman County reported on EIA Form 861 for 2025, 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 | 2024 | 4.6 hrs | 1.67 | 2.0 hrs | 1.11 |
| Bonneville Power Administration | - | - | - | - | - |
| Columbia Basin Elec Cooperative, Inc | - | - | - | - | - |
| Wasco Electric Coop, 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 Oregon's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,404 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. Sherman County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Sherman County, OR annual power outage report, 2025, 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/2025/oregon/sherman-county