Shelby County, Iowa Power Outages, 2015 to 2023

Shelby County, Iowa had no major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.16 times the US outage time per person and 0.19 times the Iowa rate. It ranks 81 of 97 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.0major outages per year

0 of 9years with a major outage

Nonelongest major outage

Nov, Dechardest months

November and December made up 37% of this county's outage time. The largest outage on record began Dec 15, 2021, reached 638 customers, and left at least 200 customers out for 7.0 hours.

Outage time per resident, rated Iowa counties

MostLeast

Outage impact by year

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

2.5K

7.5K

10K

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

Show yearly numbers

Year	Customer-hours	Reported outages
2015	9,018	9
2016	1,339	4
2017	2,734	6
2018	4,251	11
2019	5,374	16
2020	2,300	8
2021	7,504	9
2022	5,266	12
2023	4,280	5

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 15, 2021	7.0	638	3,046
Nov 27, 2015	4.5	834	3,019
Nov 26, 2015	5.0	1,017	2,288
Oct 20, 2023	2.0	1,540	2,216
Dec 16, 2021	7.0	231	1,548

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

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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.