massoutage

County annual report · FIPS 53015

2017 Cowlitz County, WA Power Outage Report

In 2017, customers in Cowlitz County, WA went without power for an average of 0.0 hours, a total of 44 customer-hours (Washington average 3.3 hours). That ranks 28th worst of 31 Washington counties and 2741st of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
50,751 customers
Customer-hours out
44
Peak customers out
12
Outages ≥1,000 out
0
0 of 10,000+ · 2 total
Longest outage
3h 30m
began December 30, 2017
Rank in state
28th/31
2741st of 2,786 US

Compared with WA, the US

Cowlitz County, WA average hours without power per customer compared with state and national averages, 2017Cowlitz County 0.0 hours, Washington average 3.3 hours, US average 7.4 hoursCowlitz CountyCowlitz County0.0hWashington averageWashington average3.3hUS averageUS average7.4h
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Average hours without power per customer in 2017.

Month by month

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Cowlitz County, WA customer-hours without power by month, 2017Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 2, Dec 4202040600Jan0Feb0Mar0Apr0May0Jun0Jul0Aug0Sep0Oct2Nov42Dec
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Customer-hours; December was the worst month.

Cowlitz County year over year

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Cowlitz County, WA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 0.0h, coverage 71%; 2019: 0.0h, coverage 86%; 2020: 0.1h, coverage 87%; 2021: 0.1h, coverage 87%; 2022: 0.1h, coverage 87%; 2023: 0.7h; 2024: 5.1h; 2025: 4.5h02460%50%100%n/a2015n/a20160.0h20170.0h20180.0h20190.1h20200.1h20210.1h20220.7h20235.1h20244.5h2025
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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 Washington customers tracked each year.

Biggest outages in Cowlitz County, 2017

The 2 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 30, 2017 05:30December 30, 2017 09:003h 30m1242
2November 21, 2017 23:15November 22, 2017 00:0045m22

Outage episodes by size in 2017: 0 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 Cowlitz County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20175.2 hrs2.012.4 hrs1.43
PUD No 1 of Lewis County20172.8 hrs1.212.2 hrs1.06
PUD No 1 of Cowlitz County201781 min0.49--
Bonneville Power Administration-----

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 Washington's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 50,751 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. Cowlitz County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Cowlitz County, WA annual power outage report, 2017, 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/2017/washington/cowlitz-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON