Trempealeau County, Wisconsin Power Outages, 2015 to 2023

Trempealeau County, Wisconsin had 4 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.17 times the US outage time per person and 0.32 times the Wisconsin rate. It ranks 61 of 70 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.4major outages per year

3 of 9years with a major outage

24 hrslongest major outage

Dec, Julhardest months

December and July made up 63% of this county's outage time. The largest outage on record began Dec 16, 2021, reached 2,900 customers, and left at least 200 customers out for 18.2 hours.

Outage time per resident, rated Wisconsin counties

MostLeast

Outage impact by year

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

20K

40K

60K

80K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	8,317	9	0
2016	5,714	5	0
2017	8,778	5	0
2018	3,425	7	0
2019	8,375	6	0
2020	4,497	4	0
2021	41,128	7	1
2022	18,346	14	1
2023	19,702	11	2

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
Dec 16, 2021	18.2	2,900	30,431
Apr 16, 2023	24.5	836	10,571
Jul 29, 2023	13.2	1,460	6,262
Jul 28, 2017	4.5	1,397	6,185
Dec 15, 2022	13.2	630	5,629

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.