Macomb County, Michigan Power Outages, 2015 to 2023

Macomb County, Michigan had 37 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.40 times the US outage time per person and 0.62 times the Michigan rate. It ranks 55 of 81 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

4.1major outages per year

9 of 9years with a major outage

188 hrslongest major outage

Aug, Julhardest months

August and July made up 40% of this county's outage time. The largest outage on record began Feb 22, 2023, reached 81,946 customers, and left at least 200 customers out for 188.0 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.

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	1,102,520	343	2
2016	458,092	52	1
2017	999,764	235	2
2018	1,903,684	436	2
2019	2,845,257	422	2
2020	2,064,743	416	4
2021	7,708,822	407	13
2022	2,725,265	389	3
2023	7,444,483	269	8

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
Feb 22, 2023	188.0	81,946	3,743,667
Aug 13, 2021	81.2	35,392	1,394,954
Mar 3, 2023	80.2	37,841	1,172,329
Sep 22, 2021	113.0	29,429	1,137,349
Jul 20, 2019	49.0	32,342	1,050,362

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.