massoutage

2021 Idaho Power Outage Report

In 2021, the average Idaho customer went without power for about 5.7 hours, the 18th worst of 51 states (US average 8.4 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
5.7
vs prior year
▲ 12%
vs 2020
Customer-hours out
5.3M
Peak customers out
48,926
across the state at once
EAGLE-I coverage
90%
of ID customers
Counties reporting
43

Idaho year over year

Idaho: average hours without power per customer by year2015: 2.6h; 2016: 1.5h; 2017: 2.9h; 2018: 2.0h, coverage 91%; 2019: 2.1h, coverage 92%; 2020: 5.1h, coverage 95%; 2021: 5.6h, coverage 90%; 2022: 2.9h, coverage 91%; 2023: 2.4h; 2024: 4.6h; 2025: 5.6h02460%50%100%2.6h20151.5h20162.9h20172.0h20182.1h20195.1h20205.6h20212.9h20222.4h20234.6h20245.6h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2021

Customer-hours without power across Idaho; January was the worst.

CSVJSON
Idaho customer-hours without power by month, 2021Jan 2.1M, Feb 142K, Mar 481K, Apr 375K, May 273K, Jun 278K, Jul 177K, Aug 279K, Sep 188K, Oct 202K, Nov 472K, Dec 301K01M2M3M2.1MJan142KFeb481KMar375KApr273KMay278KJun177KJul279KAug188KSep202KOct472KNov301KDec
Use the arrow keys to read values.

All 43 Idaho counties, 2021

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Shoshone County67.5571K8,4618,461237
2Benewah County35.0163K4,6663,090162
3Boise County33.3116K3,4913,49197
4Bonner County32.2876K27,21627,216591
5Clearwater County29.9119K3,9781,463239
6Fremont County27.451K1,8661,866430
7Kootenai County14.01.4M103,28724,557595
8Idaho County13.7135K9,9206,202175
9Adams County12.126K2,1172,11735
10Boundary County11.850K4,2613,203153
11Valley County10.764K5,9923,913114
12Madison County10.593K8,8778,877429
13Clark County6.74,558685478100
14Latah County5.7101K17,8703,308340
15Teton County5.59,6921,775922206
16Gem County5.346K8,6913,96157
17Lincoln County5.212K2,3601,09864
18Power County5.220K3,8423,50054
19Gooding County5.037K7,5483,99494
20Oneida County4.919K3,9212,677176
21Lemhi County4.818K3,72774759
22Jefferson County4.339K8,9953,630578
23Washington County3.711K2,90095050
24Caribou County3.613K3,6391,071149
25Owyhee County3.519K5,5011,70478
26Elmore County3.345K13,4045,613122
27Nez Perce County3.265K19,9386,462344
28Blaine County3.036K11,9657,55993
29Lewis County3.05,4391,80863165
30Bingham County2.958K19,8373,573390
31Bear Lake County2.714K5,2532,172143
32Payette County2.631K11,8463,83769
33Twin Falls County2.4110K46,2674,001266
34Jerome County2.226K11,7381,910130
35Bonneville County1.9148K79,45112,061627
36Bannock County1.881K43,8848,288303
37Canyon County1.8205K112,89621,260436
38Ada County1.3338K256,53710,421596
39Franklin County1.112K11,7481,678195
40Cassia County0.79,92114,7264,26834
41Minidoka County0.33,67911,69672736
42Camas County0.2100469473
43Butte County-5,161-398101

Biggest Idaho outages of 2021

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Bonner County, IDApril 19, 2021 00:45April 20, 2021 23:451d 23h27,216192K
2Bonner County, IDNovember 15, 2021 22:15November 20, 2021 03:304d 5h25,571224K
3Kootenai County, IDJanuary 13, 2021 10:15January 20, 2021 02:306d 16h24,5571.1M
4Canyon County, IDMay 22, 2021 23:15May 23, 2021 02:153h21,26022K
5Bonner County, IDJanuary 13, 2021 10:45January 19, 2021 04:305d 17h18,423234K
6Bonneville County, IDJanuary 26, 2021 15:15January 26, 2021 17:452h 30m12,06118K
7Kootenai County, IDNovember 15, 2021 19:15November 18, 2021 03:002d 7h11,74390K
8Ada County, IDMay 22, 2021 16:00May 22, 2021 22:306h 30m10,42118K
9Bonneville County, IDMarch 29, 2021 14:30March 30, 2021 04:4514h 15m9,49661K
10Madison County, IDOctober 29, 2021 15:45October 30, 2021 00:158h 30m8,87734K
11Madison County, IDMay 16, 2021 11:45May 16, 2021 12:0015m8,8772,219
12Madison County, IDJune 12, 2021 19:30June 13, 2021 00:455h 15m8,87714K
13Canyon County, IDJune 22, 2021 20:00June 23, 2021 01:455h 45m8,7053,284
14Ada County, IDMay 19, 2021 18:00May 19, 2021 20:152h 15m8,7006,514
15Canyon County, IDJuly 6, 2021 17:15July 6, 2021 19:001h 45m8,6046,492
16Shoshone County, IDJanuary 13, 2021 13:00January 21, 2021 17:158d 4h8,461488K
17Bonner County, IDMarch 28, 2021 21:45March 29, 2021 23:451d 2h8,43856K
18Kootenai County, IDMarch 28, 2021 23:45March 30, 2021 09:301d 9h8,35786K
19Bannock County, IDJune 23, 2021 00:00June 23, 2021 01:301h 30m8,2888,744
20Canyon County, IDJune 23, 2021 05:15June 24, 2021 07:001d 1h8,11525K
21Blaine County, IDJune 9, 2021 15:45June 9, 2021 18:002h 15m7,5591,926
22Ada County, IDJune 28, 2021 21:00June 29, 2021 05:008h7,52515K
23Ada County, IDMay 22, 2021 11:30May 22, 2021 14:152h 45m7,0837,442
24Ada County, IDMay 1, 2021 21:15May 2, 2021 12:0014h 45m7,04912K
25Ada County, IDMarch 29, 2021 06:30March 30, 2021 05:1522h 45m7,02422K
EAGLE-I tracked about 90% of Idaho's electricity customers in 2021; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.

Part of the 2021 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.