massoutage

County annual report · FIPS 16069

2015 Nez Perce County, ID Power Outage Report

In 2015, customers in Nez Perce County, ID went without power for an average of 1.2 hours, a total of 23K customer-hours (Idaho average 2.6 hours). That ranks 15th worst of 31 Idaho counties and 1679th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
1.2
19,938 customers
Customer-hours out
23K
Peak customers out
784
Outages ≥1,000 out
0
0 of 10,000+ · 80 total
Longest outage
4d 18h
began September 8, 2015
Rank in state
15th/31
1679th of 2,484 US

Compared with ID, the US

Nez Perce County, ID average hours without power per customer compared with state and national averages, 2015Nez Perce County 1.2 hours, Idaho average 2.6 hours, US average 2.9 hoursNez Perce CountyNez Perce County1.2hIdaho averageIdaho average2.6hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Nez Perce County, ID customer-hours without power by month, 2015Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 1,612, Sep 824, Oct 15K, Nov 3,389, Dec 2,10605k10k15k20k0Jan0Feb0Mar0Apr0May0Jun0Jul1,612Aug824Sep15KOct3,389Nov2,106Dec
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Customer-hours; October was the worst month.

Nez Perce County year over year

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Nez Perce County, ID: average hours without power per customer by year2015: 1.2h; 2016: 2.4h; 2017: 3.1h; 2018: 2.5h, coverage 91%; 2019: 1.8h, coverage 92%; 2020: 3.0h, coverage 95%; 2021: 3.2h, coverage 90%; 2022: 3.5h, coverage 91%; 2023: 4.2h; 2024: 6.2h; 2025: 11.5h0510150%50%100%1.2h20152.4h20163.1h20172.5h20181.8h20193.0h20203.2h20213.5h20224.2h20236.2h202411.5h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Idaho customers tracked each year.

Biggest outages in Nez Perce County, 2015

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 26, 2015 16:45August 30, 2015 00:003d 7h7841,137
2October 23, 2015 06:15October 23, 2015 09:303h 15m5861,905
3October 6, 2015 06:15October 6, 2015 16:1510h5835,830
4December 9, 2015 15:45December 9, 2015 22:306h 45m4611,018
5August 31, 2015 15:15August 31, 2015 16:0045m457343
6September 5, 2015 20:15September 6, 2015 06:4510h 30m394617
7October 13, 2015 00:30October 13, 2015 14:1513h 45m3895,349
8November 17, 2015 21:00November 18, 2015 15:0018h2651,393
9December 16, 2015 17:30December 17, 2015 00:307h177239
10October 11, 2015 17:00October 12, 2015 16:3023h 30m1671,062

Outage episodes by size in 2015: 10 reached 100+ customers, 0 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 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Clearwater Power Company201521.7 hrs3.3321.7 hrs3.33
Bonneville Power Administration-----
Avista Corp-----
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 2015; 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, 2015, 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/2015/idaho/nez-perce-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON