County annual report · FIPS 16069
2025 Nez Perce County, ID Power Outage Report
In 2025, customers in Nez Perce County, ID went without power for an average of 11.5 hours, a total of 229K customer-hours (Idaho average 5.6 hours). That ranks 18th worst of 43 Idaho counties and 686th of 3,000 nationally.
Compared with ID, the US and 2024
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Nez Perce 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 | March 13, 2025 20:15 | March 13, 2025 20:45 | 30m | 7,496 | 1,881 |
| 2 | September 12, 2025 05:15 | September 12, 2025 08:45 | 3h 30m | 6,178 | 8,627 |
| 3 | December 17, 2025 11:45 | December 27, 2025 03:45 | 9d 16h | 3,929 | 153K |
| 4 | November 29, 2025 05:15 | November 29, 2025 22:15 | 17h | 1,667 | 1,746 |
| 5 | September 9, 2025 01:15 | September 9, 2025 23:15 | 22h | 1,537 | 12K |
| 6 | September 27, 2025 23:15 | September 28, 2025 00:45 | 1h 30m | 1,135 | 1,703 |
| 7 | February 5, 2025 08:15 | February 6, 2025 06:45 | 22h 30m | 1,010 | 7,598 |
| 8 | September 7, 2025 13:30 | September 8, 2025 14:15 | 1d | 815 | 1,636 |
| 9 | September 22, 2025 18:45 | September 22, 2025 19:45 | 1h | 722 | 543 |
| 10 | August 1, 2025 03:00 | August 1, 2025 16:45 | 13h 45m | 697 | 1,781 |
Outage episodes by size in 2025: 31 reached 100+ customers, 7 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 Nez Perce 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 |
|---|---|---|---|---|---|
| Avista Corp | 2024 | 3.1 hrs | 1.11 | 2.3 hrs | 0.94 |
| Clearwater Power Company | 2018 | 16.6 hrs | 3.16 | 12.0 hrs | 2.91 |
| Bonneville Power Administration | - | - | - | - | - |
| Avista Corp,avista | - | - | - | - | - |
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 Idaho's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,938 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. Nez Perce County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Nez Perce County, ID 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/idaho/nez-perce-county