massoutage

County annual report · FIPS 53037

2021 Kittitas County, WA Power Outage Report

In 2021, customers in Kittitas County, WA went without power for an average of 9.6 hours, a total of 201K customer-hours (Washington average 8.7 hours). That ranks 15th worst of 33 Washington counties and 804th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
9.6
21,055 customers
Customer-hours out
201K
Peak customers out
4,228
Outages ≥1,000 out
10
0 of 10,000+ · 310 total
Longest outage
5d 12h
began November 14, 2021
Rank in state
15th/33
804th of 2,974 US

Compared with WA, the US and 2020

Kittitas County, WA average hours without power per customer compared with state and national averages, 2021Kittitas County 9.6 hours, Washington average 8.7 hours, US average 8.9 hours, Kittitas County, 2020 8.4 hoursKittitas CountyKittitas County9.6hWashington averageWashington average8.7hUS averageUS average8.9hKittitas County, 2020Kittitas County, 20208.4h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Kittitas County, WA customer-hours without power by month, 2021Jan 63K, Feb 15K, Mar 3,775, Apr 1,432, May 11K, Jun 8,644, Jul 12K, Aug 834, Sep 1,494, Oct 5,363, Nov 13K, Dec 66K020k40k60k80k63KJan15KFeb3,775Mar1,432Apr11KMay8,644Jun12KJul834Aug1,494Sep5,363Oct13KNov66KDec
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Customer-hours; December was the worst month.

Kittitas County year over year

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Kittitas County, WA: average hours without power per customer by year2015: 8.9h; 2016: 2.0h; 2017: 2.6h; 2018: 3.0h, coverage 71%; 2019: 4.9h, coverage 86%; 2020: 8.4h, coverage 87%; 2021: 9.6h, coverage 87%; 2022: 12.6h, coverage 87%; 2023: 2.8h; 2024: 11.5h; 2025: 11.4h0510150%50%100%8.9h20152.0h20162.6h20173.0h20184.9h20198.4h20209.6h202112.6h20222.8h202311.5h202411.4h2025
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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 Kittitas County, 2021

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 13, 2021 12:00January 18, 2021 17:455d 5h4,22860K
2July 3, 2021 13:15July 3, 2021 15:302h 15m4,1318,017
3December 27, 2021 17:15December 31, 2021 00:153d 7h2,09345K
4May 23, 2021 22:00May 24, 2021 03:005h1,5066,405
5December 23, 2021 16:15December 23, 2021 22:306h 15m1,4173,535
6November 14, 2021 15:30November 20, 2021 03:455d 12h1,18412K
7December 20, 2021 14:45December 21, 2021 19:001d 4h1,1419,554
8December 27, 2021 05:00December 27, 2021 06:151h 15m1,1281,410
9May 5, 2021 22:30May 6, 2021 01:002h 30m1,0212,041
10February 23, 2021 03:00February 28, 2021 11:455d 8h1,00013K

Outage episodes by size in 2021: 44 reached 100+ customers, 10 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 Kittitas County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Puget Sound Energy Inc202114.2 hrs2.273.5 hrs1.26
Bonneville Power Administration-----
Puget Sound Energy Inc,pugetsoundenergy-----
PUD No 2 of Grant County-----
PUD No 1 of Chelan County-----
City of Ellensburg - (WA)-----
PUD No 1 of Kittitas 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 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 21,055 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. Kittitas County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Kittitas County, WA 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/washington/kittitas-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON