massoutage

County annual report · FIPS 41005

2020 Clackamas County, OR Power Outage Report

In 2020, customers in Clackamas County, OR went without power for an average of 25.0 hours, a total of 4.6M customer-hours (Oregon average 8.7 hours). That ranks 2nd worst of 35 Oregon counties and 344th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
25.0
183,590 customers
Customer-hours out
4.6M
Peak customers out
47,773
Outages ≥1,000 out
20
2 of 10,000+ · 314 total
Longest outage
111d 23h
began September 10, 2020
Rank in state
2nd/35
344th of 3,019 US

Compared with OR, the US and 2019

Clackamas County, OR average hours without power per customer compared with state and national averages, 2020Clackamas County 25.0 hours, Oregon average 8.7 hours, US average 8.7 hours, Clackamas County, 2019 4.0 hoursClackamas CountyClackamas County25.0hOregon averageOregon average8.7hUS averageUS average8.7hClackamas County, 2019Clackamas County, 20…4.0h
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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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Clackamas County, OR customer-hours without power by month, 2020Jan 73K, Feb 37K, Mar 17K, Apr 493K, May 629K, Jun 21K, Jul 25K, Aug 34K, Sep 2.8M, Oct 146K, Nov 124K, Dec 158K01M2M3M73KJan37KFeb17KMar493KApr629KMay21KJun25KJul34KAug2.8MSep146KOct124KNov158KDec
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Customer-hours; September was the worst month.

Clackamas County year over year

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Clackamas County, OR: average hours without power per customer by year2015: 6.1h; 2016: 3.1h; 2017: 10.6h; 2018: 3.5h, coverage 75%; 2019: 4.0h, coverage 86%; 2020: 25.0h, coverage 90%; 2021: 77.6h, coverage 90%; 2022: 15.0h, coverage 90%; 2023: 2.9h; 2024: 9.8h; 2025: 9.4h0204060800%50%100%6.1h20153.1h201610.6h20173.5h20184.0h201925.0h202077.6h202115.0h20222.9h20239.8h20249.4h2025
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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 Oregon customers tracked each year.

Biggest outages in Clackamas County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 8, 2020 03:15September 9, 2020 22:151d 19h47,7731.2M
2September 10, 2020 00:30December 31, 2020 00:15111d 23h20,9342.0M
3August 30, 2020 14:15September 8, 2020 02:158d 12h8,23916K
4April 20, 2020 12:15May 13, 2020 23:1523d 11h7,4541.1M
5February 23, 2020 15:30February 24, 2020 10:0018h 30m4,58918K
6January 21, 2020 18:00January 23, 2020 00:451d 6h3,34812K
7February 3, 2020 04:45February 3, 2020 13:459h3,1025,082
8January 18, 2020 05:15January 18, 2020 06:301h 15m2,9763,720
9July 13, 2020 15:00July 13, 2020 16:001h2,3882,388
10April 9, 2020 23:30April 10, 2020 00:0030m2,2461,105

Outage episodes by size in 2020: 93 reached 100+ customers, 20 reached 1,000+ customers, 2 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 Clackamas 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
Portland General Electric Co20205.2 hrs0.811.7 hrs0.60
Bonneville Power Administration-----
Canby Utility Board-----

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 ÷ 183,590 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. Clackamas County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Clackamas 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/clackamas-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON