Power outages in Sanders County, MT
We don't have a live outage feed for the utilities serving Sanders County yet. NorthWestern Energy LLC - (MT), Avista Corp and Flathead Electric Coop Inc serve this county.
Right now
No live outage data for Sanders County yet.
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This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
Outage history in Sanders County
2014–2025 recordSanders County averaged 22.3 significant outages a year in 2023–2025, more than most Montana counties.
In the 12 months to December 2025, there were 22. Half were over within 2.5 hours; the longest lasted 3.5 days, starting December 17, 2025.
The largest on record began January 13, 2021, with 7,428 customers out at once.
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At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.i
Half of significant outages here ended sooner than this, and half lasted longer.| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| January 13, 2021 | 7,428 | 4.3 days | 231,311 |
| December 17, 2025 | 6,903 | 3.5 days | 151,968 |
| September 7, 2020 | 3,568 | 2.3 days | 62,078 |
| September 8, 2025 | 2,748 | 3.5 hours | 9,618 |
| December 8, 2025 | 2,674 | 1.5 hours | 2,438 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
Cities in Sanders County
Utilities
- NorthWestern Energy LLC - (MT) no live feed
- Avista Corp no live feed
- Flathead Electric Coop Inc no live feed
- Northern Lights, Inc no live feed
- USBIA-Mission Valley Power no live feed
- All Montana outages