massoutage

County annual report · FIPS 16027

2021 Canyon County, ID Power Outage Report

In 2021, customers in Canyon County, ID went without power for an average of 1.8 hours, a total of 205K customer-hours (Idaho average 5.7 hours). That ranks 38th worst of 43 Idaho counties and 2316th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.8
112,896 customers
Customer-hours out
205K
Peak customers out
21,260
Outages ≥1,000 out
37
1 of 10,000+ · 436 total
Longest outage
1d 8h
began April 26, 2021
Rank in state
38th/43
2316th of 2,974 US

Compared with ID, the US and 2020

Canyon County, ID average hours without power per customer compared with state and national averages, 2021Canyon County 1.8 hours, Idaho average 5.7 hours, US average 8.9 hours, Canyon County, 2020 1.8 hoursCanyon CountyCanyon County1.8hIdaho averageIdaho average5.7hUS averageUS average8.9hCanyon County, 2020Canyon County, 20201.8h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Canyon County, ID customer-hours without power by month, 2021Jan 5,805, Feb 11K, Mar 15K, Apr 5,673, May 36K, Jun 43K, Jul 23K, Aug 16K, Sep 13K, Oct 22K, Nov 4,866, Dec 9,406020k40k60k5,805Jan11KFeb15KMar5,673Apr36KMay43KJun23KJul16KAug13KSep22KOct4,866Nov9,406Dec
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Customer-hours; June was the worst month.

Canyon County year over year

CSVJSON
Canyon County, ID: average hours without power per customer by year2015: 0.2h; 2016: 0.8h; 2017: 1.2h; 2018: 0.8h, coverage 91%; 2019: 1.1h, coverage 92%; 2020: 1.8h, coverage 95%; 2021: 1.8h, coverage 90%; 2022: 1.7h, coverage 91%; 2023: 1.3h; 2024: 1.7h; 2025: 1.9h00.511.520%50%100%0.2h20150.8h20161.2h20170.8h20181.1h20191.8h20201.8h20211.7h20221.3h20231.7h20241.9h2025
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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 Canyon County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 22, 2021 23:15May 23, 2021 02:153h21,26022K
2June 22, 2021 20:00June 23, 2021 01:455h 45m8,7053,284
3July 6, 2021 17:15July 6, 2021 19:001h 45m8,6046,492
4June 23, 2021 05:15June 24, 2021 07:001d 1h8,11525K
5July 23, 2021 17:45July 23, 2021 18:451h6,8663,447
6August 21, 2021 08:45August 21, 2021 11:302h 45m6,6495,123
7October 20, 2021 19:30October 20, 2021 19:4515m5,7571,439
8October 30, 2021 14:15October 30, 2021 16:001h 45m4,1277,222
9March 29, 2021 07:45March 29, 2021 23:0015h 15m2,8697,048
10February 1, 2021 15:45February 1, 2021 17:151h 30m2,6172,002

Outage episodes by size in 2021: 126 reached 100+ customers, 37 reached 1,000+ customers, 1 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 Canyon County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Idaho Power Co20213.1 hrs1.422.6 hrs1.25

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Idaho's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 112,896 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. Canyon County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Canyon County, ID annual power outage report, 2021, 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/2021/idaho/canyon-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON