Sanilac County, Michigan Power Outages, 2015 to 2023

Sanilac County, Michigan had 61 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 3.87 times the US outage time per person and 1.72 times the Michigan rate. It ranks 14 of 81 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

6.8major outages per year

9 of 9years with a major outage

103 hrslongest major outage

May, Sephardest months

May and September made up 35% of this county's outage time. The largest outage on record began May 4, 2018, reached 13,303 customers, and left at least 200 customers out for 54.0 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.

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	335,700	116	5
2016	68,214	9	1
2017	365,140	28	4
2018	685,868	51	11
2019	625,585	68	11
2020	250,612	61	4
2021	760,913	58	8
2022	182,006	37	7
2023	155,852	25	10

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
May 4, 2018	54.0	13,303	506,551
Sep 22, 2021	103.2	9,280	454,703
Jul 20, 2019	49.0	8,365	301,346
Apr 6, 2017	82.2	5,793	287,290
Dec 11, 2021	56.8	6,864	147,010

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.