Power outages in Sheridan County, MT
We don't have a live outage feed for the utilities serving Sheridan County yet. Montana-Dakota Utilities Co and Sheridan Electric Coop, Inc serve this county.
Right now
No live outage data for Sheridan 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.Outage map
Outage history in Sheridan County
2014–2025 recordSheridan County rarely has significant outages, meaning at least 1% of its customers out at once: 28 since 2014.
There were none in the 12 months to December 2025. Over the full record, half of outages were over within 1.5 hours.
The largest on record began July 24, 2020, with 1,246 customers out at once.
Outages are most common in June.
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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. |
|---|---|---|---|
| July 24, 2020 | 1,246 | 7 hours | 8,115 |
| June 11, 2020 | 1,205 | 45 minutes | 904 |
| July 10, 2018 | 1,194 | 24 hours | 25,892 |
| January 14, 2021 | 991 | 3.5 hours | 836 |
| March 23, 2017 | 649 | 15 minutes | 162 |
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 Sheridan County
Utilities
- Montana-Dakota Utilities Co no live feed
- Sheridan Electric Coop, Inc no live feed
- All Montana outages