massoutage

2015 California Power Outage Report

In 2015, the average California customer went without power for about 3.1 hours — the 12th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
3.1
Peak customers out
124,111
Rank (worst state)
12th
Counties affected
20

California outages over the decade

Average hours without power per customer, 2015 highlighted.

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

Hardest-hit California counties in 2015

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

1Orange County124,1112San Diego County68,5493Sacramento County41,2614Los Angeles County34,7805San Bernardino County28,8736Yolo County20,1737Santa Barbara County19,0698Riverside County16,9849Ventura County15,77310Kern County5,44711Tulare County5,05112Mono County3,57313Fresno County2,89314Kings County2,60415Inyo County1,61116Santa Clara County1,16717Imperial County40118Placer County12919San Joaquin County1020Nevada County9

Biggest California outages of 2015

CountyBeganPeak customers out
Orange CountyJune 8, 2015124,111
San Diego CountySeptember 20, 201568,549
Sacramento CountyDecember 5, 201541,261
Orange CountyOctober 1, 201540,711
Sacramento CountyDecember 13, 201539,573
Los Angeles CountyAugust 21, 201534,780
Los Angeles CountyMay 10, 201533,471
San Bernardino CountySeptember 30, 201528,873
Sacramento CountyDecember 14, 201527,571
Orange CountyJune 1, 201526,754
California by year:20252024202320222021202020192018
Other states in 2015:WVWANCMIRILA

Part of the 2015 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.