Los Angeles County, California Power Outages, 2015 to 2023

Los Angeles County, California had 5 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.63 times the US outage time per person and 0.70 times the California rate. It ranks 35 of 55 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.6major outages per year

5 of 9years with a major outage

47 hrslongest major outage

Aug, Octhardest months

August and October made up 21% of this county's outage time. The largest outage on record began Feb 24, 2023, reached 46,663 customers, and left at least 200 customers out for 87.5 hours.

Outage time per resident, rated California counties

MostLeast

Outage impact by year

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

10M

20M

30M

40M

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	20,259,711	624	0
2016	11,113,208	665	1
2017	13,234,382	533	0
2018	15,379,532	959	1
2019	13,233,516	722	1
2020	13,736,968	765	1
2021	14,326,438	617	1
2022	15,833,120	552	0
2023	17,661,940	536	0

When outages hit

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

10%

15%

20%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Feb 24, 2023	87.5	46,663	1,841,030
Sep 3, 2020	166.8	65,931	1,637,858
Aug 31, 2022	287.2	31,866	1,586,811
Aug 28, 2017	176.8	27,464	1,316,780
Oct 1, 2023	332.8	39,481	1,240,750

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.