massoutage

2024 California Power Outage Report

In 2024, the average California customer went without power for about 6.1 hours, the 24th worst of 51 states (US average 11.2 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
6.1
vs prior year
▼ 23%
vs 2023
Customer-hours out
96.4M
Peak customers out
888,942
across the state at once
EAGLE-I coverage
n/a
of CA customers
Counties reporting
58

California year over year

California: average hours without power per customer by year2015: 3.1h; 2016: 2.5h; 2017: 2.2h; 2018: 3.7h, coverage 91%; 2019: 9.3h, coverage 93%; 2020: 6.2h, coverage 94%; 2021: 6.6h, coverage 95%; 2022: 4.9h, coverage 95%; 2023: 7.9h; 2024: 6.1h; 2025: 7.5h02.557.5100%50%100%3.1h20152.5h20162.2h20173.7h20189.3h20196.2h20206.6h20214.9h20227.9h20236.1h20247.5h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2024

Customer-hours without power across California; February was the worst.

CSVJSON
California customer-hours without power by month, 2024Jan 4.3M, Feb 27.8M, Mar 6.9M, Apr 4.2M, May 4.9M, Jun 6.8M, Jul 6.8M, Aug 5.0M, Sep 6.6M, Oct 6.1M, Nov 7.2M, Dec 9.9M010M20M30M4.3MJan27.8MFeb6.9MMar4.2MApr4.9MMay6.8MJun6.8MJul5.0MAug6.6MSep6.1MOct7.2MNov9.9MDec
Use the arrow keys to read values.

All 58 California counties, 2024

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Sierra County95.5198K2,0722,072137
2Plumas County56.8524K9,2309,230288
3Calaveras County47.7878K18,41713,088493
4Mendocino County37.91.5M39,04122,722501
5Alpine County37.833K88268455
6Mono County34.2190K5,5512,356189
7Mariposa County33.9246K7,2624,100410
8Lake County30.0853K28,3979,594539
9Tuolumne County27.7653K23,6109,582570
10Santa Cruz County24.02.8M118,29936,292388
11Nevada County22.71.2M52,25118,388547
12Napa County22.31.4M63,82820,079485
13Humboldt County22.21.3M59,96210,657461
14Siskiyou County20.4542K26,6056,023593
15Monterey County19.13.7M195,57541,884234
16Butte County19.01.7M90,54343,533564
17Tehama County18.8528K28,1343,714533
18Yuba County18.3657K35,93324,376649
19El Dorado County18.11.7M95,67217,547465
20Marin County17.62.0M113,04433,960468
21Colusa County17.6175K9,9702,249436
22Sonoma County17.53.7M214,12751,885423
23Placer County14.02.6M187,52555,153525
24Amador County13.4229K17,05012,926467
25Del Norte County13.1212K16,19511,902514
26San Mateo County12.54.1M328,40881,483235
27Glenn County11.2137K12,2334,091516
28San Luis Obispo County10.11.3M125,72731,018425
29Inyo County9.971K7,2013,059146
30Solano County9.91.9M187,69040,973457
31Sutter County9.7409K42,32322,015633
32Ventura County8.42.7M317,65828,503434
33Modoc County8.355K6,5982,302232
34Merced County8.3466K56,0775,756710
35Shasta County8.1660K81,2828,406461
36Santa Clara County7.86.6M844,715145,84066
37San Francisco County6.71.4M209,75325,833673
38San Bernardino County6.15.2M840,55523,113205
39Contra Costa County5.52.7M486,94541,219276
40Yolo County5.4549K101,50911,294568
41Madera County5.3360K68,5034,312635
42Sacramento County4.83.0M625,566207,107715
43Santa Barbara County4.7907K192,08014,203442
44Kern County4.61.8M395,01519,305219
45San Joaquin County4.51.4M324,54346,271398
46Riverside County4.33.7M853,92314,151251
47San Diego County4.05.5M1,362,92951,858276
48San Benito County3.9105K26,7036,129418
49Tulare County3.9728K186,9394,759460
50Fresno County3.81.7M458,08417,444171
51Alameda County3.82.9M751,61628,382149
52Los Angeles County3.413.0M3,762,60040,28129
53Kings County2.8175K62,9984,908491
54Orange County2.63.2M1,255,53021,187328
55Stanislaus County0.5111K219,15613,425540
56Imperial County0.430K72,6912,05230
57Lassen County0.33,89615,44047650
58Trinity County-59K-900117

Biggest California outages of 2024

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Sacramento County, CAFebruary 4, 2024 16:15February 10, 2024 10:455d 18h207,1072.2M
2Santa Clara County, CAJanuary 21, 2024 08:00March 11, 2024 02:3049d 18h145,8403.7M
3San Mateo County, CAJanuary 31, 2024 16:00February 14, 2024 14:1513d 22h81,4832.1M
4Placer County, CAFebruary 4, 2024 21:45February 10, 2024 06:005d 8h55,1531.2M
5Sonoma County, CAFebruary 4, 2024 07:30February 13, 2024 12:309d 5h51,8852.2M
6San Diego County, CADecember 8, 2024 11:00December 13, 2024 02:004d 15h51,8582.0M
7San Joaquin County, CAFebruary 4, 2024 10:00February 8, 2024 06:453d 20h46,271591K
8Butte County, CAFebruary 5, 2024 00:15February 11, 2024 10:306d 10h43,533808K
9Monterey County, CADecember 11, 2024 15:30December 23, 2024 09:0011d 17h41,8841.2M
10Contra Costa County, CAFebruary 4, 2024 09:15February 8, 2024 11:304d 2h41,219691K
11Solano County, CAFebruary 2, 2024 13:15February 12, 2024 04:309d 15h40,973709K
12Los Angeles County, CADecember 13, 2024 04:45December 26, 2024 14:1513d 9h40,281463K
13Los Angeles County, CAAugust 8, 2024 15:15November 13, 2024 13:0096d 21h38,5433.6M
14Monterey County, CAFebruary 3, 2024 05:45February 20, 2024 09:4517d 4h37,9811.6M
15Santa Cruz County, CAFebruary 4, 2024 04:00February 12, 2024 11:008d 7h36,2921.5M
16Los Angeles County, CAMarch 27, 2024 13:45April 16, 2024 11:3019d 21h35,143770K
17Marin County, CADecember 14, 2024 06:00December 20, 2024 05:005d 23h33,960462K
18Marin County, CAFebruary 3, 2024 23:15February 17, 2024 04:1513d 5h33,291833K
19San Mateo County, CADecember 12, 2024 07:15December 18, 2024 12:456d 5h32,063323K
20San Luis Obispo County, CAFebruary 4, 2024 11:15February 13, 2024 11:008d 23h31,018343K
21Los Angeles County, CAJanuary 1, 2024 00:00March 17, 2024 08:1576d 8h29,2453.3M
22Ventura County, CAApril 27, 2024 15:15April 27, 2024 22:457h 30m28,5037,714
23Sonoma County, CAMarch 1, 2024 17:45March 6, 2024 06:304d 12h28,49887K
24Ventura County, CAAugust 29, 2024 15:15August 29, 2024 23:458h 30m28,48017K
25Alameda County, CAFebruary 3, 2024 15:15February 13, 2024 05:159d 14h28,382224K
EAGLE-I tracked about n/a of California's electricity customers in 2024; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
California by year:2025202320222021202020192018201720162015
Other states in 2024:SCMENCGATXFLWVLA

Part of the 2024 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.