San Luis Obispo County, California Power Outages, 2018 to 2023

San Luis Obispo County, California had 29 major outages from 2018 to 2023

Above middle outage time among US counties

Residents here averaged 0.90 times the US outage time per person and 1.00 times the California rate. It ranks 30 of 55 in the state, where 1 has the most. Data confidence: Medium, with 6 years of records.

4.8major outages per year

5 of 6years with a major outage

46 hrslongest major outage

Jan, Dechardest months

January and December made up 29% of this county's outage time. The largest outage on record began Dec 11, 2022, reached 29,494 customers, and left at least 200 customers out for 43.2 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.

0.25M

0.5M

0.75M

2018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2018	141,835	98	0
2019	399,400	199	3
2020	341,799	189	4
2021	899,905	202	12
2022	946,076	264	3
2023	992,061	273	7

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
Dec 11, 2022	43.2	29,494	318,914
Jan 27, 2021	29.5	12,574	131,866
Feb 2, 2020	9.5	18,921	89,680
Jan 9, 2023	5.8	21,675	77,521
Jan 4, 2023	28.8	7,445	77,014

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.