Lake County, South Dakota Power Outages, 2016 to 2023

Lake County, South Dakota had 2 major outages from 2016 to 2023

Above middle outage time among US counties

Residents here averaged 0.91 times the US outage time per person and 1.85 times the South Dakota rate. It ranks 9 of 32 in the state, where 1 has the most. Data confidence: High, with 8 years of records.

0.2major outages per year

2 of 8years with a major outage

77 hrslongest major outage

May, Octhardest months

May and October made up 83% of this county's outage time. The largest outage on record began May 12, 2022, reached 3,402 customers, and left at least 200 customers out for 77.0 hours.

Outage time per resident, rated South Dakota counties

MostLeast

Outage impact by year

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

50K

100K

150K

200K

2016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2016	509	2	0
2017	37,030	7	0
2018	0	0	0
2019	1,210	5	0
2020	1,873	6	0
2021	12,173	5	1
2022	140,664	7	1
2023	2,739	7	0

When outages hit

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

20%

40%

60%

80%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
May 12, 2022	77.0	3,402	138,669
Oct 2, 2017	4.8	4,106	19,502
Nov 8, 2017	5.8	2,421	11,015
Jul 21, 2021	16.0	609	9,744
Oct 3, 2017	3.5	783	2,738

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.