Power outages in Big Horn County, MT
We don't have a live outage feed for the utilities serving Big Horn County yet. NorthWestern Energy LLC - (MT), Powder River Energy Corp and Yellowstone Valley Elec Co-op serve this county.
Right now
No live outage data for Big Horn 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 Big Horn County
2014–2025 recordBig Horn County averaged 3.3 significant outages a year in 2023–2025, fewer than most Montana counties.
In the 12 months to December 2025, there were 4. Half were over within 3 hours; the longest lasted 13 hours, starting April 17, 2025.
The largest on record began April 17, 2025, with 1,779 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. |
|---|---|---|---|
| April 17, 2025 | 1,779 | 13 hours | 6,977 |
| June 11, 2022 | 1,778 | 8.5 hours | 11,976 |
| June 12, 2025 | 304 | 1.5 hours | 334 |
| November 30, 2023 | 187 | 7.5 hours | 1,356 |
| November 13, 2025 | 129 | 4 hours | 502 |
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 Big Horn County
Nearby counties
Utilities
- NorthWestern Energy LLC - (MT) no live feed
- Powder River Energy Corp no live feed
- Yellowstone Valley Elec Co-op no live feed
- WAPA-- Western Area Power Administration no live feed
- Big Horn Rural Electric Co no live feed
- All Montana outages