San Bernardino County, California Power Outages, 2015 to 2023

San Bernardino County, California had 13 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.79 times the US outage time per person and 0.88 times the California rate. It ranks 33 of 55 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

1.4major outages per year

6 of 9years with a major outage

186 hrslongest major outage

Oct, Sephardest months

October and September made up 22% of this county's outage time. The largest outage on record began Oct 20, 2020, reached 62,238 customers, and left at least 200 customers out for 186.2 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.

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	3,254,028	865	1
2016	3,303,003	755	0
2017	3,284,008	649	1
2018	3,179,678	893	0
2019	4,827,883	852	2
2020	5,094,339	695	3
2021	5,354,152	659	2
2022	5,479,325	809	4
2023	4,499,344	636	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
Oct 20, 2020	186.2	62,238	1,105,164
Nov 27, 2019	168.5	31,276	663,718
Dec 26, 2019	40.5	36,385	485,791
Jan 22, 2022	50.5	17,103	323,423
Jan 1, 2022	66.0	7,221	297,534

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.