massoutage

2017 Montana Power Outage Report

In 2017, the average Montana customer went without power for about 2.7 hours — the 30th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.7
Peak customers out
10,941
Rank (worst state)
30th
Counties affected
19

Montana outages over the decade

Average hours without power per customer, 2017 highlighted.

2.3h20151.8h20162.7h20171.9h20180.6h20195.6h20205.0h20213.5h20221.8h20238.5h20246.8h2025

Hardest-hit Montana counties in 2017

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

1Flathead County10,9412Lincoln County5,7573Custer County4,3424Richland County2,6825Dawson County2,5866Lake County1,4857Roosevelt County1,3888Rosebud County1,1859Sanders County1,04110Sheridan County64911Wibaux County37712Park County34013Prairie County12314Fallon County7915Powder River County3316Mineral County817McCone County718Daniels County619Carter County1

Biggest Montana outages of 2017

CountyBeganPeak customers out
Flathead CountyOctober 17, 201710,941
Flathead CountyAugust 11, 20176,435
Lincoln CountyDecember 19, 20175,757
Custer CountyNovember 7, 20174,342
Custer CountyApril 13, 20174,145
Flathead CountyMay 24, 20173,745
Lincoln CountyJuly 7, 20172,962
Flathead CountyDecember 19, 20172,705
Richland CountySeptember 1, 20172,682
Dawson CountyMay 25, 20172,586
Montana by year:20252024202320222021202020192018
Other states in 2017:FLMEWVNHGARI

Part of the 2017 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.