Rock County, Wisconsin Power Outages, 2015 to 2023

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

Lower outage time among US counties

Residents here averaged 0.13 times the US outage time per person and 0.23 times the Wisconsin rate. It ranks 67 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

18 hrslongest major outage

Jul, Junhardest months

July and June made up 32% of this county's outage time. The largest outage on record began Apr 11, 2019, reached 9,625 customers, and left at least 200 customers out for 2.0 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.

25K

50K

75K

100K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	57,873	31	0
2016	722	5	0
2017	46,681	33	0
2018	53,870	42	1
2019	62,166	42	0
2020	54,973	49	1
2021	60,182	45	0
2022	48,347	50	0
2023	82,965	63	2

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
Apr 11, 2019	2.0	9,625	16,670
Sep 18, 2015	6.2	4,802	15,299
Jan 11, 2020	16.5	1,696	13,731
Oct 20, 2018	9.0	2,656	13,524
Jul 28, 2023	8.5	2,991	12,383

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.

Look up another county

Counties ranked nearby

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.