massoutage

County annual report · FIPS 53045

2017 Mason County, WA Power Outage Report

In 2017, customers in Mason County, WA went without power for an average of 0.0 hours, a total of 40 customer-hours (Washington average 3.3 hours). That ranks 25th worst of 31 Washington counties and 2738th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
37,529 customers
Customer-hours out
40
Peak customers out
2
Outages ≥1,000 out
0
0 of 10,000+ · 2 total
Longest outage
18h 45m
began October 7, 2017
Rank in state
25th/31
2738th of 2,786 US

Compared with WA, the US and 2016

Mason County, WA average hours without power per customer compared with state and national averages, 2017Mason County 0.0 hours, Washington average 3.3 hours, US average 7.4 hours, Mason County, 2016 0.0 hoursMason CountyMason County0.0hWashington averageWashington average3.3hUS averageUS average7.4hMason County, 2016Mason County, 20160.0h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

CSVJSON
Mason County, WA customer-hours without power by month, 2017Jan 0, Feb 0, Mar 0, Apr 3, May 0, Jun 0, Jul 0, Aug 0, Sep 0, Oct 38, Nov 0, Dec 00102030400Jan0Feb0Mar3Apr0May0Jun0Jul0Aug0Sep38Oct0Nov0Dec
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Customer-hours; October was the worst month.

Mason County year over year

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Mason County, WA: average hours without power per customer by year2015: 0.0h; 2016: 0.0h; 2017: 0.0h; 2018: 0.0h, coverage 71%; 2019: 1.1h, coverage 86%; 2020: 6.1h, coverage 87%; 2021: 9.9h, coverage 87%; 2022: 9.3h, coverage 87%; 2023: 4.2h; 2024: 7.1h; 2025: 5.6h02.557.5100%50%100%0.0h20150.0h20160.0h20170.0h20181.1h20196.1h20209.9h20219.3h20224.2h20237.1h20245.6h2025
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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 Mason County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 5, 2017 17:00April 5, 2017 18:151h 15m23
2October 7, 2017 00:45October 7, 2017 19:3018h 45m238

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 Mason 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
City of Tacoma - (WA)-----
PUD No 3 of Mason County-----
PUD No 1 of Mason County-----
PUD No 3 of Mason County,masonpud3-----

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 ÷ 37,529 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. Mason County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Mason 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/). https://massoutage.com/reports/2017/washington/mason-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON
Mason County by year:2025202420232022202120202019201820162015
Live outages in Mason County2017 Washington report2017 US report