massoutage

County annual report · FIPS 41067

2018 Washington County, OR Power Outage Report

In 2018, customers in Washington County, OR went without power for an average of 1.5 hours, a total of 404K customer-hours (Oregon average 2.0 hours). That ranks 20th worst of 34 Oregon counties and 2093rd of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.5
268,603 customers
Customer-hours out
404K
Peak customers out
10,553
Outages ≥1,000 out
30
1 of 10,000+ · 412 total
Longest outage
7d 18h
began January 25, 2018
Rank in state
20th/34
2093rd of 2,798 US

Compared with OR, the US and 2017

Washington County, OR average hours without power per customer compared with state and national averages, 2018Washington County 1.5 hours, Oregon average 2.0 hours, US average 5.6 hours, Washington County, 2017 6.4 hoursWashington CountyWashington County1.5hOregon averageOregon average2.0hUS averageUS average5.6hWashington County, 2017Washington County, 2…6.4h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Washington County, OR customer-hours without power by month, 2018Jan 23K, Feb 23K, Mar 24K, Apr 28K, May 34K, Jun 69K, Jul 56K, Aug 47K, Sep 21K, Oct 32K, Nov 17K, Dec 30K020k40k60k80k23KJan23KFeb24KMar28KApr34KMay69KJun56KJul47KAug21KSep32KOct17KNov30KDec
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Customer-hours; June was the worst month.

Washington County year over year

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Washington County, OR: average hours without power per customer by year2015: 1.9h; 2016: 2.1h; 2017: 6.4h; 2018: 1.5h, coverage 75%; 2019: 2.3h, coverage 86%; 2020: 2.6h, coverage 90%; 2021: 6.5h, coverage 90%; 2022: 5.7h, coverage 90%; 2023: 1.4h; 2024: 8.8h; 2025: 3.2h02.557.5100%50%100%1.9h20152.1h20166.4h20171.5h20182.3h20192.6h20206.5h20215.7h20221.4h20238.8h20243.2h2025
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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 Oregon customers tracked each year.

Biggest outages in Washington County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 21, 2018 13:00June 22, 2018 18:151d 5h10,55330K
2May 8, 2018 23:30May 9, 2018 03:304h3,9989,015
3February 26, 2018 18:00February 27, 2018 18:301d3,5225,585
4October 30, 2018 21:30November 1, 2018 21:302d3,2047,983
5August 20, 2018 15:00August 21, 2018 05:1514h 15m2,7282,712
6August 28, 2018 15:15August 28, 2018 16:451h 30m2,680683
7October 1, 2018 20:30October 1, 2018 21:0030m2,5841,292
8August 21, 2018 16:00August 21, 2018 20:004h2,5795,016
9June 6, 2018 17:30June 13, 2018 19:307d 2h2,48510K
10July 22, 2018 12:15July 22, 2018 21:309h 15m2,4769,077

Outage episodes by size in 2018: 150 reached 100+ customers, 30 reached 1,000+ customers, 1 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Portland General Electric Co201888 min0.5288 min0.52
Bonneville Power Administration-----
West Oregon Electric Coop Inc-----
City of Forest Grove-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 75% of Oregon's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 268,603 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, OR annual power outage report, 2018, 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/2018/oregon/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON