Pierce County, Washington Power Outages, 2015 to 2023

Pierce County, Washington had 20 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.48 times the US outage time per person and 0.60 times the Washington rate. It ranks 20 of 34 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.2major outages per year

7 of 9years with a major outage

115 hrslongest major outage

Sep, Janhardest months

September and January made up 41% of this county's outage time. The largest outage on record began Jan 13, 2021, reached 107,403 customers, and left at least 200 customers out for 115.2 hours.

Outage time per resident, rated Washington 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	1,047,705	49	3
2016	300,315	82	1
2017	655,766	138	0
2018	427,189	135	0
2019	391,230	136	1
2020	2,037,684	213	4
2021	3,342,592	205	6
2022	1,247,594	188	4
2023	583,149	198	1

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
Jan 13, 2021	115.2	107,403	1,481,278
Sep 8, 2020	15.2	52,571	687,329
Aug 29, 2015	48.2	38,940	442,679
Sep 18, 2021	41.5	55,715	426,212
Oct 24, 2021	44.2	34,842	306,108

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.