Cassia County power outages

Idaho outage history from 2016 to 2023, with the largest outages and a backup battery estimate.

Cassia County, Idaho had no major outages from 2016 to 2023

Lower outage time among US counties

Residents here averaged 0.20 times the US outage time per person and 0.41 times the Idaho rate. It ranks 31 of 35 in the state, where 1 has the most. Data confidence: High, with 8 years of records.

0.0major outages per year
0 of 8years with a major outage
Nonelongest major outage
Aug, Sephardest months

August and September made up 30% of this county's outage time. The largest outage on record began Sep 27, 2023, reached 3,306 customers, and left at least 200 customers out for 4.5 hours.

Outage time per resident, rated Idaho counties
MostLeast

Outage impact by year

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

0
10K
20K
30K
40K
2016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
20167,18760
201714,58150
201814,05970
201917,849130
202014,56890
20217,66250
20221,33530
202323,18460

When outages hit

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

0%
5%
10%
15%
20%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Sep 27, 20234.53,30612,308
Feb 23, 20177.21,72812,262
Jun 13, 20186.21,6719,999
Mar 24, 20236.01,8988,814
Aug 26, 20207.21,3976,041

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.

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.