Cass County, Michigan Power Outages, 2015 to 2023

Cass County, Michigan had 47 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.59 times the US outage time per person and 0.71 times the Michigan rate. It ranks 52 of 81 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

5.2major outages per year

9 of 9years with a major outage

131 hrslongest major outage

Aug, Junhardest months

August and June made up 40% of this county's outage time. The largest outage on record began Jun 14, 2022, reached 8,698 customers, and left at least 200 customers out for 73.5 hours.

Outage time per resident, rated Michigan counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

200K

400K

600K

800K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	132,375	49	4
2016	85,886	48	3
2017	111,275	47	4
2018	196,065	81	5
2019	108,349	70	4
2020	154,201	81	4
2021	481,231	101	12
2022	432,239	74	7
2023	107,874	51	4

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Jun 14, 2022	73.5	8,698	139,953
Aug 11, 2021	55.0	4,566	77,922
Jul 22, 2022	47.5	3,928	76,943
Aug 10, 2020	24.5	3,568	58,894
Jun 20, 2021	25.8	4,687	51,213

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.