Twin Falls County power outages

Idaho outage history from 2015 to 2023, with the largest outages and a backup battery estimate.

Twin Falls County, Idaho had 5 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.27 times the US outage time per person and 0.56 times the Idaho rate. It ranks 28 of 35 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.6major outages per year
4 of 9years with a major outage
12 hrslongest major outage
Aug, Julhardest months

August and July made up 28% of this county's outage time. The largest outage on record began Aug 19, 2020, reached 4,458 customers, and left at least 200 customers out for 7.0 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
50K
100K
150K
200K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
201529,159130
201632,758420
201783,154540
201851,365470
201925,634331
2020121,697532
202184,955531
202282,932481
202363,896430

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
Aug 19, 20207.04,45829,301
Mar 10, 20235.09,20319,924
Aug 11, 20155.87,10715,512
Jul 29, 20173.54,27714,712
Oct 22, 202212.01,92013,924

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.