Tama County, Iowa Power Outages, 2015 to 2023

Tama County, Iowa had 3 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 2.68 times the US outage time per person and 3.15 times the Iowa rate. It ranks 3 of 97 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.3major outages per year

1 of 9years with a major outage

212 hrslongest major outage

Aug, Junhardest months

August and June made up 92% of this county's outage time. The largest outage on record began Aug 10, 2020, reached 6,848 customers, and left at least 200 customers out for 211.8 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.

0.25M

0.5M

0.75M

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	8,612	9	0
2016	11,683	14	0
2017	9,212	11	0
2018	14,937	9	0
2019	10,452	9	0
2020	885,602	14	3
2021	17,460	7	0
2022	22,469	11	0
2023	7,907	9	0

When outages hit

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

25%

50%

75%

100%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Aug 10, 2020	211.8	6,848	856,781
Aug 19, 2020	36.5	2,111	19,472
Dec 16, 2021	2.8	3,211	8,756
May 10, 2016	5.0	1,275	6,370
Sep 18, 2022	2.0	3,147	6,227

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.