massoutage

2024 California Power Outage Report

In 2024, the average California customer went without power for about 6.1 hours — the 24th worst of any US state that year, 1.1× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
6.1
Peak customers out
207,107
Rank (worst state)
24th
Counties affected
20

California outages over the decade

Average hours without power per customer, 2024 highlighted.

3.1h20152.5h20162.2h20173.7h20189.6h20196.3h20206.6h20214.9h20227.9h20236.1h20247.6h2025

Hardest-hit California counties in 2024

By peak customers out during the year's worst event.

1Sacramento County207,1072Santa Clara County145,8403San Mateo County81,4834Placer County55,1535Sonoma County51,8856San Diego County51,8587San Joaquin County46,2718Butte County43,5339Monterey County41,88410Contra Costa County41,21911Solano County40,97312Los Angeles County40,28113Santa Cruz County36,29214Marin County33,96015San Luis Obispo County31,01816Ventura County28,50317Alameda County28,38218San Francisco County25,83319Yuba County24,37620San Bernardino County23,113

Biggest California outages of 2024

CountyBeganPeak customers out
Sacramento CountyFebruary 4, 2024207,107
Santa Clara CountyJanuary 21, 2024145,840
San Mateo CountyJanuary 31, 202481,483
Placer CountyFebruary 4, 202455,153
Sonoma CountyFebruary 4, 202451,885
San Diego CountyDecember 8, 202451,858
San Joaquin CountyFebruary 4, 202446,271
Butte CountyFebruary 5, 202443,533
Monterey CountyDecember 11, 202441,884
Contra Costa CountyFebruary 4, 202441,219
California by year:20252023202220212020201920182017
Other states in 2024:NCSCMEGATXFL

Part of the 2024 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.