massoutage

2019 California Power Outage Report

In 2019, the average California customer went without power for about 9.3 hours, the 5th worst of 51 states (US average 4.6 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
9.3
vs prior year
▲ 155%
vs 2018
Customer-hours out
147.1M
Peak customers out
1,025,762
across the state at once
EAGLE-I coverage
93%
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, 2019

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

CSVJSON
California customer-hours without power by month, 2019Jan 5.3M, Feb 12.3M, Mar 4.0M, Apr 3.9M, May 3.8M, Jun 4.8M, Jul 3.9M, Aug 4.2M, Sep 5.8M, Oct 84.9M, Nov 8.5M, Dec 5.7M025M50M75M100M5.3MJan12.3MFeb4.0MMar3.9MApr3.8MMay4.8MJun3.9MJul4.2MAug5.8MSep84.9MOct8.5MNov5.7MDec
Use the arrow keys to read values.

All 58 California counties, 2019

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

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Sierra County256.5532K2,0721,681123
2Calaveras County154.82.9M18,41718,417490
3Amador County154.02.6M17,05017,050421
4Lake County140.84.0M28,39728,397574
5Alpine County125.5111K88265444
6Tuolumne County123.32.9M23,61023,610528
7Nevada County122.96.4M52,25152,251498
8Mendocino County103.04.0M39,04139,041467
9El Dorado County85.08.1M95,67266,493399
10Humboldt County80.94.8M59,96259,962496
11Shasta County80.66.5M81,28238,021471
12Tehama County68.81.9M28,13422,542578
13Marin County65.07.3M113,044113,044553
14Mariposa County61.5446K7,2627,262433
15Sonoma County58.112.4M214,127105,823422
16Napa County56.93.6M63,82846,279512
17Butte County52.14.7M90,54334,117391
18Mono County47.1262K5,5515,551247
19Plumas County46.4428K9,2309,230252
20Santa Cruz County35.74.2M118,29957,052312
21Yuba County29.01.0M35,93311,309554
22Placer County21.44.0M187,52547,143497
23Colusa County17.9179K9,9705,612431
24Solano County16.73.1M187,69050,374533
25Del Norte County15.8257K16,19511,663571
26Madera County13.5927K68,50317,954673
27San Mateo County10.93.6M328,40856,555345
28Inyo County10.576K7,2014,740204
29Monterey County8.61.7M195,57516,662354
30Glenn County8.4103K12,2333,211476
31Contra Costa County7.83.8M486,94570,267411
32Ventura County7.02.2M317,65828,290409
33Yolo County6.4654K101,50912,995520
34Siskiyou County6.2164K26,60515,774812
35San Bernardino County6.15.1M840,55536,385276
36Santa Barbara County5.91.1M192,08022,471463
37Alameda County5.94.4M751,61688,608288
38San Francisco County4.6974K209,75326,468636
39San Luis Obispo County4.6582K125,72719,404457
40Merced County4.0225K56,0775,072705
41Santa Clara County4.03.4M844,71536,001186
42Kern County3.81.5M395,01517,294313
43Riverside County3.83.2M853,92325,264343
44Imperial County3.7267K72,69198648
45Los Angeles County3.613.4M3,762,600108,11112
46San Diego County3.14.2M1,362,92932,212258
47Tulare County2.9550K186,9399,182497
48San Joaquin County2.9948K324,54318,357383
49San Benito County2.978K26,7034,485425
50Orange County2.73.4M1,255,53083,382331
51Sacramento County2.71.7M625,566135,474678
52Fresno County2.61.2M458,08422,318357
53Sutter County2.5104K42,3233,868638
54Kings County2.2138K62,9984,103522
55Modoc County1.711K6,5981,090378
56Stanislaus County0.599K219,1566,946563
57Lassen County0.22,34915,44023143
58Trinity County-198K-4,070354

Biggest California outages of 2019

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

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Sacramento County, CAJanuary 6, 2019 18:30January 10, 2019 14:003d 19h135,474595K
2Marin County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h113,0444.9M
3Los Angeles County, CAJuly 8, 2019 04:00July 27, 2019 18:1519d 14h108,111628K
4Sonoma County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h105,8234.4M
5Sonoma County, CAOctober 23, 2019 06:15October 27, 2019 05:453d 23h96,2541.1M
6Alameda County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h88,6082.5M
7Sonoma County, CAOctober 29, 2019 10:45November 9, 2019 06:0010d 19h88,5633.5M
8Sonoma County, CAOctober 29, 2019 09:15October 29, 2019 10:0045m86,38265K
9Orange County, CAOctober 4, 2019 22:15October 5, 2019 11:1513h83,382345K
10Marin County, CAOctober 29, 2019 10:45November 1, 2019 03:302d 16h78,9741.2M
11Marin County, CAOctober 29, 2019 09:15October 29, 2019 10:0045m78,17459K
12Orange County, CADecember 2, 2019 14:45December 3, 2019 14:0023h 15m77,647235K
13Los Angeles County, CAJanuary 12, 2019 16:45February 17, 2019 13:0035d 20h73,9272.0M
14Contra Costa County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h70,2671.9M
15Sonoma County, CAOctober 9, 2019 04:15October 9, 2019 12:308h 15m67,001200K
16El Dorado County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h66,4932.3M
17Marin County, CAAugust 15, 2019 16:15August 16, 2019 10:0017h 45m61,31495K
18Humboldt County, CAOctober 9, 2019 21:30October 10, 2019 01:304h59,962197K
19Humboldt County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h59,9622.0M
20Humboldt County, CAOctober 9, 2019 04:15October 9, 2019 12:308h 15m59,962149K
21Humboldt County, CAOctober 9, 2019 14:15October 9, 2019 19:004h 45m59,962270K
22Humboldt County, CAOctober 10, 2019 02:30October 10, 2019 03:0030m59,96230K
23Humboldt County, CAOctober 10, 2019 05:30October 10, 2019 16:0010h 30m59,962271K
24Santa Cruz County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h57,0522.1M
25San Mateo County, CAOctober 27, 2019 06:30October 29, 2019 08:002d 1h56,5552.1M
EAGLE-I tracked about 93% of California's electricity customers in 2019; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
California by year:2025202420232022202120202018201720162015
Other states in 2019:WVMINCLAVTVAARME

Part of the 2019 US Power Outage Report.

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