Multnomah County, Oregon Power Outages, 2015 to 2023

Multnomah County, Oregon had 32 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.04 times the US outage time per person and 0.93 times the Oregon rate. It ranks 10 of 32 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

3.6major outages per year

7 of 9years with a major outage

266 hrslongest major outage

Feb, Dechardest months

February and December made up 49% of this county's outage time. The largest outage on record began Feb 13, 2021, reached 125,115 customers, and left at least 200 customers out for 133.5 hours.

Outage time per resident, rated Oregon counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	1,030,262	188	5
2016	1,111,515	136	4
2017	1,587,627	254	2
2018	694,536	209	0
2019	995,796	178	2
2020	1,662,563	191	2
2021	7,678,376	230	9
2022	2,771,141	311	8
2023	764,828	343	0

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Feb 13, 2021	133.5	125,115	5,654,317
Sep 8, 2020	45.8	53,768	814,556
Apr 11, 2022	63.5	67,481	708,929
Dec 27, 2022	65.0	31,521	614,177
Dec 9, 2016	59.8	28,599	513,305

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.