massoutage

County annual report · FIPS 41051

2020 Multnomah County, OR Power Outage Report

In 2020, customers in Multnomah County, OR went without power for an average of 4.7 hours, a total of 1.8M customer-hours (Oregon average 8.7 hours). That ranks 19th worst of 35 Oregon counties and 1445th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
4.7
388,772 customers
Customer-hours out
1.8M
Peak customers out
53,768
Outages ≥1,000 out
64
4 of 10,000+ · 799 total
Longest outage
8d 14h
began September 7, 2020
Rank in state
19th/35
1445th of 3,019 US

Compared with OR, the US and 2019

Multnomah County, OR average hours without power per customer compared with state and national averages, 2020Multnomah County 4.7 hours, Oregon average 8.7 hours, US average 8.7 hours, Multnomah County, 2019 3.1 hoursMultnomah CountyMultnomah County4.7hOregon averageOregon average8.7hUS averageUS average8.7hMultnomah County, 2019Multnomah County, 20…3.1h
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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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Multnomah County, OR customer-hours without power by month, 2020Jan 68K, Feb 34K, Mar 45K, Apr 32K, May 56K, Jun 52K, Jul 134K, Aug 121K, Sep 985K, Oct 114K, Nov 133K, Dec 69K0250k500k750k1M68KJan34KFeb45KMar32KApr56KMay52KJun134KJul121KAug985KSep114KOct133KNov69KDec
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Customer-hours; September was the worst month.

Multnomah County year over year

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Multnomah County, OR: average hours without power per customer by year2015: 2.9h; 2016: 3.2h; 2017: 5.0h; 2018: 2.5h, coverage 75%; 2019: 3.1h, coverage 86%; 2020: 4.7h, coverage 90%; 2021: 20.2h, coverage 90%; 2022: 7.7h, coverage 90%; 2023: 2.5h; 2024: 22.3h; 2025: 3.6h01020300%50%100%2.9h20153.2h20165.0h20172.5h20183.1h20194.7h202020.2h20217.7h20222.5h202322.3h20243.6h2025
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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 Oregon customers tracked each year.

Biggest outages in Multnomah County, 2020

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
1September 7, 2020 01:15September 15, 2020 15:308d 14h53,768941K
2July 21, 2020 07:00July 25, 2020 00:003d 17h34,23473K
3September 17, 2020 23:00September 24, 2020 21:306d 22h11,91314K
4November 14, 2020 11:45November 15, 2020 22:301d 10h10,46262K
5June 26, 2020 01:00June 26, 2020 17:3016h 30m6,87427K
6November 12, 2020 17:15November 14, 2020 06:151d 13h5,71329K
7July 6, 2020 11:45July 7, 2020 20:451d 9h5,61213K
8April 4, 2020 09:30April 5, 2020 04:3019h5,07913K
9October 7, 2020 11:00October 13, 2020 04:455d 17h4,98168K
10April 27, 2020 06:30April 27, 2020 22:0015h 30m4,5331,413

Outage episodes by size in 2020: 178 reached 100+ customers, 64 reached 1,000+ customers, 4 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 Multnomah 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
PacifiCorp20206.8 hrs1.882.0 hrs1.22
Portland General Electric Co20205.2 hrs0.811.7 hrs0.60
Columbia River Peoples Ut Dist20201.6 hrs0.7066 min0.58
Bonneville Power Administration-----
City of Cascade Locks - (OR)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Oregon's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 388,772 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. Multnomah County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Multnomah County, OR 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/oregon/multnomah-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON