massoutage

County annual report · FIPS 16087

2020 Washington County, ID Power Outage Report

In 2020, customers in Washington County, ID went without power for an average of 4.3 hours, a total of 12K customer-hours (Idaho average 5.1 hours). That ranks 25th worst of 44 Idaho counties and 1540th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
4.3
2,900 customers
Customer-hours out
12K
Peak customers out
620
Outages ≥1,000 out
0
0 of 10,000+ · 39 total
Longest outage
2d 4h
began September 8, 2020
Rank in state
25th/44
1540th of 3,019 US

Compared with ID, the US and 2019

Washington County, ID average hours without power per customer compared with state and national averages, 2020Washington County 4.3 hours, Idaho average 5.1 hours, US average 8.7 hours, Washington County, 2019 2.8 hoursWashington CountyWashington County4.3hIdaho averageIdaho average5.1hUS averageUS average8.7hWashington County, 2019Washington County, 2…2.8h
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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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Washington County, ID customer-hours without power by month, 2020Jan 36, Feb 106, Mar 0, Apr 407, May 219, Jun 3,170, Jul 0, Aug 1,561, Sep 4,461, Oct 178, Nov 2,330, Dec 002k4k6k36Jan106Feb0Mar407Apr219May3,170Jun0Jul1,561Aug4,461Sep178Oct2,330Nov0Dec
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Customer-hours; September was the worst month.

Washington County year over year

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Washington County, ID: average hours without power per customer by year2015: 0.7h; 2016: 0.4h; 2017: 3.6h; 2018: 2.6h, coverage 91%; 2019: 2.8h, coverage 92%; 2020: 4.3h, coverage 95%; 2021: 3.7h, coverage 90%; 2022: 4.1h, coverage 91%; 2023: 6.2h; 2024: 4.5h; 2025: 4.5h024680%50%100%0.7h20150.4h20163.6h20172.6h20182.8h20194.3h20203.7h20214.1h20226.2h20234.5h20244.5h2025
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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 Washington County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 15, 2020 22:15September 16, 2020 05:157h6201,974
2June 7, 2020 13:30June 7, 2020 16:453h 15m5181,684
3November 30, 2020 11:30November 30, 2020 17:155h 45m4361,835
4August 31, 2020 20:30August 31, 2020 21:0030m328164
5September 26, 2020 10:45September 26, 2020 12:301h 45m257450
6November 8, 2020 03:30November 8, 2020 05:001h 30m257386
7April 15, 2020 21:00April 15, 2020 21:4545m253190
8May 7, 2020 20:30May 7, 2020 21:1545m230173
9June 30, 2020 10:00June 30, 2020 11:451h 45m229401
10June 30, 2020 13:15June 30, 2020 14:451h 30m229344

Outage episodes by size in 2020: 13 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 Washington 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
Idaho Power Co20203.3 hrs1.102.7 hrs1.00
City of Weiser - (ID)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Idaho's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,900 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. Washington County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Washington County, ID 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/idaho/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON