County annual report · FIPS 16069
2018 Nez Perce County, ID Power Outage Report
In 2018, customers in Nez Perce County, ID went without power for an average of 2.5 hours, a total of 49K customer-hours (Idaho average 2.0 hours). That ranks 25th worst of 44 Idaho counties and 1671st of 2,798 nationally.
Compared with ID, the US and 2017
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Nez Perce 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 | April 29, 2018 15:45 | April 29, 2018 20:15 | 4h 30m | 1,974 | 5,289 |
| 2 | May 7, 2018 00:00 | May 7, 2018 01:15 | 1h 15m | 1,649 | 1,654 |
| 3 | March 13, 2018 06:45 | March 13, 2018 19:00 | 12h 15m | 914 | 1,747 |
| 4 | October 17, 2018 19:15 | October 17, 2018 21:00 | 1h 45m | 858 | 542 |
| 5 | December 19, 2018 05:30 | December 19, 2018 10:15 | 4h 45m | 715 | 3,239 |
| 6 | January 30, 2018 10:30 | January 30, 2018 18:15 | 7h 45m | 710 | 1,442 |
| 7 | November 4, 2018 12:30 | November 5, 2018 02:45 | 14h 15m | 708 | 684 |
| 8 | September 13, 2018 14:15 | September 14, 2018 18:15 | 1d 4h | 486 | 4,007 |
| 9 | August 31, 2018 04:30 | August 31, 2018 12:45 | 8h 15m | 483 | 1,888 |
| 10 | May 26, 2018 08:30 | May 26, 2018 11:00 | 2h 30m | 482 | 1,081 |
Outage episodes by size in 2018: 33 reached 100+ customers, 2 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 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 |
|---|---|---|---|---|---|
| Avista Corp | 2018 | 2.6 hrs | 0.89 | 2.2 hrs | 0.81 |
| 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 91% of Idaho's customers in 2018; 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, 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/idaho/nez-perce-county