massoutage

2021 Utah Power Outage Report

In 2021, the average Utah customer went without power for about 2.6 hours — the 37th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.6
Peak customers out
22,470
Rank (worst state)
37th
Counties affected
20

Utah outages over the decade

Average hours without power per customer, 2021 highlighted.

1.0h20171.9h20182.5h20198.7h20202.6h20212.7h20222.5h20233.1h20243.1h2025

Hardest-hit Utah counties in 2021

By peak customers out during the year's worst event.

1Salt Lake County22,4702Cache County11,0233Weber County9,7194Davis County8,2795Utah County5,0286Washington County4,9697Tooele County4,7428Grand County4,5079Summit County3,67610Rich County3,52911Iron County3,44112Morgan County2,78113Beaver County2,44214Uintah County2,29415Sevier County2,24316Carbon County2,22417Wasatch County2,07718Box Elder County1,81919Millard County1,74120Garfield County1,728

Biggest Utah outages of 2021

CountyBeganPeak customers out
Salt Lake CountyOctober 3, 202122,470
Salt Lake CountyNovember 10, 202113,290
Salt Lake CountyFebruary 16, 202111,753
Cache CountyAugust 13, 202111,023
Weber CountyJuly 14, 20219,719
Weber CountyFebruary 5, 20219,572
Weber CountyApril 3, 20219,097
Weber CountyDecember 15, 20218,395
Cache CountyOctober 12, 20218,369
Salt Lake CountyJuly 21, 20218,366
Utah by year:20252024202320222020201920182017
Other states in 2021:LAMIWVTXORMS

Part of the 2021 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.