Summary of Electricity Activity in Big Horn County, MT
Summary of Big Horn County, MT Generation
Big Horn County, MT is ranked #640 out of 2,166 U.S. counties nationwide and #5 out of 32 Montana counties in terms of total annual net electricity generation.
| Annual Generation | 1.3 TWh |
|---|---|
| Annual Consumption | 10.0 M MMBtu |
| Last Update | Feb 2026 |
| Power Plants | 3 |
| Companies on File | 3 |
Map of Top Producing Plants in Big Horn County, MT
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Annual Net Generation From hydroelectric power
798.4 GWh
National Rank in Terms of hydroelectric Net Electricity Generation
#60 /536 U.S. Counties
State Rank in Terms of hydroelectric Net Electricity Generation
#5 /15 Montana Counties
Monthly Net Generation for Big Horn County, MT
Monthly Plant Fuel Consumption for Big Horn County, MT
Net Generation by Fuel Source
Net Generation by Fuel Source Breakdown
| State Rank | National Rank | Generation | Fuel Consumption | |
|---|---|---|---|---|
| All | #5 / 32 | #640 / 2166 | 1.28 TWh | 9.98 M MMBtu |
| Water | #5 / 15 | #60 / 536 | 798.42 GWh | 2.96 M MMBtu |
| Subbituminous Coal | #2 / 3 | #90 / 110 | 469.11 GWh | 6.84 M MMBtu |
| Bituminous Coal | #1 / 1 | #93 / 109 | 7.60 GWh | 97.57 k MMBtu |
| Solar | #4 / 8 | #997 / 1252 | 5.05 GWh | 17.81 k MMBtu |
| Natural Gas | #6 / 8 | #803 / 927 | 4.29 GWh | 59.06 k MMBtu |
Power Plants in Big Horn County, MT
| Plant | Utility Name | Generation | Consumption | Fuel Types |
|---|---|---|---|---|
| Yellowtail | U S Bureau of Reclamation | 798.4 GWh | 3.0 M MMBtu | Water |
| Hardin Generator Project | Heorot Power Management | 481.0 GWh | 7.0 M MMBtu | Subbituminous Coal : 97.5% Bituminous Coal : 1.6% Natural Gas : 0.9% |
| South Mills Solar, LLC | Adapture Renewables, Inc. | 5.0 GWh | 17.8 k MMBtu | Solar |
Electricity Generation for Neighboring Counties
| National Rank | County | Net Generation | # Power Plants |
|---|---|---|---|
| #813 | Carbon County | 752.4 GWh | 5 |
| #788 | Custer County | 792.6 GWh | 2 |
| #1981 | Golden Valley County | 4.9 GWh | 1 |
| #87 | Rosebud County | 11.0 TWh | 5 |
| #2125 | Sheridan County | 199.0 MWh | 1 |
| #859 | Stillwater County | 665.1 GWh | 9 |
| #725 | Yellowstone County | 988.9 GWh | 8 |
Electricity Generation for Cities Located in Big Horn County, MT
| State Rank | City | Net Generation | # Power Plants |
|---|---|---|---|
| #6 | Hardin, MT | 1.3 TWh | 3 |