massoutage

County annual report · FIPS 53003

2020 Asotin County, WA Power Outage Report

In 2020, customers in Asotin County, WA went without power for an average of 1.2 hours, a total of 25K customer-hours (Washington average 4.2 hours). That ranks 31st worst of 37 Washington counties and 2582nd of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
1.2
20,797 customers
Customer-hours out
25K
Peak customers out
984
Outages ≥1,000 out
0
0 of 10,000+ · 408 total
Longest outage
10d 1h
began September 9, 2020
Rank in state
31st/37
2582nd of 3,019 US

Compared with WA, the US and 2019

Asotin County, WA average hours without power per customer compared with state and national averages, 2020Asotin County 1.2 hours, Washington average 4.2 hours, US average 8.7 hours, Asotin County, 2019 1.1 hoursAsotin CountyAsotin County1.2hWashington averageWashington average4.2hUS averageUS average8.7hAsotin County, 2019Asotin County, 20191.1h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Asotin County, WA customer-hours without power by month, 2020Jan 3,603, Feb 4,337, Mar 927, Apr 948, May 2,850, Jun 1,334, Jul 787, Aug 193, Sep 7,470, Oct 1,126, Nov 701, Dec 1,06902k4k6k8k3,603Jan4,337Feb927Mar948Apr2,850May1,334Jun787Jul193Aug7,470Sep1,126Oct701Nov1,069Dec
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Customer-hours; September was the worst month.

Asotin County year over year

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Asotin County, WA: average hours without power per customer by year2015: 0.2h; 2016: 0.6h; 2017: 1.7h; 2018: 1.4h, coverage 71%; 2019: 1.1h, coverage 86%; 2020: 1.2h, coverage 87%; 2021: 1.8h, coverage 87%; 2022: 2.2h, coverage 87%; 2023: 1.2h; 2024: 2.6h; 2025: 5.3h02460%50%100%0.2h20150.6h20161.7h20171.4h20181.1h20191.2h20201.8h20212.2h20221.2h20232.6h20245.3h2025
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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 Washington customers tracked each year.

Biggest outages in Asotin County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 26, 2020 21:45May 27, 2020 00:002h 15m984813
2September 9, 2020 03:30September 19, 2020 04:3010d 1h8507,131
3January 13, 2020 16:45January 15, 2020 07:451d 15h7812,021
4February 12, 2020 18:00February 12, 2020 23:005h7091,435
5March 12, 2020 14:45March 12, 2020 23:008h 15m541568
6May 1, 2020 16:30May 1, 2020 20:304h448340
7July 27, 2020 11:30July 27, 2020 18:006h 30m418165
8July 29, 2020 07:30July 29, 2020 12:004h 30m308173
9January 8, 2020 17:00January 8, 2020 23:306h 30m305646
10February 5, 2020 15:15February 5, 2020 15:4530m29775

Outage episodes by size in 2020: 18 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 Asotin County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Avista Corp20205.1 hrs1.562.2 hrs0.91
Inland Power & Light Company202013.3 hrs1.973.9 hrs1.31
Clearwater Power Company201816.6 hrs3.1612.0 hrs2.91
Avista Corp,avista-----
PUD No 1 of Asotin County-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 87% of Washington's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 20,797 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. Asotin County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Asotin County, WA annual power outage report, 2020, 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/2020/washington/asotin-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON