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Summary of Electricity Activity in Montana

Summary of Montana Generation

Montana is ranked #40 out of 51 U.S. states and territories in terms of total annual net electricity generation.

GridInfo.com electricity generation data is aggregated from Jan 2001 to Aug 2026.

Companies on File68
Plants on File100
Total Generation2.27G MMBtu
Total Sales 1.32G kWh
Total Revenue $165.71M

Map of Top Producing Cities in the Montana

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Overall National Rank

#40 /51 U.S. States

In Net Annual Generation

Overall Annual Net Geneneration

25.8 TWh

Total Annual Fuel Consumption

189.7 M MMBtu

Electric Companies in Montana

68

Montana
Power Plants

100

Natural Gas Rank

#48

Coal Rank

#26

Nuclear Rank

#40

Hydroelectric Rank

#8

Wind Rank

#19

Solar Rank

#41

Monthly Net Generation for Montana

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Monthly Plant Fuel Consumption for Montana

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Electricity Sales Distribution

Electricity Sales, Price, and Revenue Breakdown

SalesPrice (Avg)Revenue
Residential450.51M kWh15.57 cents/kWh$70.16M
Commercial462.25M kWh13.64 cents/kWh$63.07M
Industrial407.80M kWh7.97 cents/kWh$32.49M
Transportation0 kWh0.00 cents/kWh$0
Total1.32G kWh12.55 cents/kWh$165.71M

* Data is aggregated from Jan 2001 to Aug 2026.

Production by Source for Montana

Download Source Breakdown

Largest 24 Power Plants in Montana

RankPlantUtilityLocationAnnual GenerationInitial Operation DateLast UpdateFuel Types
#9Beaver Creek Wind FacilityPuget Sound Energy IncBig Timber, Montana647.7 GWhJul 2025Aug 2026 Wind
#6Clearwater Wind EastPortland General Electric CoMiles City, Montana793.5 GWhDec 2023Aug 2026 Wind
#4Clearwater Wind IClearwater Energy Resources LLCMiles City, Montana1.3 TWhOct 2022Aug 2026 Wind
#16Clearwater Wind IIClearwater Wind II, LLCMiles City, Montana392.6 GWhNov 2023Aug 2026 Wind
#18Clearwater Wind IIIClearwater Wind III, LLCMiles City, Montana375.4 GWhAug 2024Aug 2026 Wind
#1ColstripTalen Montana LLCColstrip, Montana7.9 TWhOct 1975Aug 2026 Subbituminous Coal : 99.9%
#24Colstrip Energy LPColstrip Energy LPColstrip, Montana277.5 GWhJan 1990Dec 2025 Waste/Other Coal : 99.6%
#21Dave Gates Generating StationNorthWestern Energy (MT wind/thermal)Anaconda, Montana345.1 GWhDec 2010Aug 2026 Natural Gas
#7Fort PeckUSACE-OmahaFort Peck, Montana756.9 GWhJun 1943Dec 2025 Water
#19Hardin Generator ProjectHeorot Power ManagementHardin, Montana366.5 GWhFeb 2006Aug 2025 Subbituminous Coal : 99.4% Natural Gas : 0.6%
#10Hungry HorseU S Bureau of ReclamationColumbia Falls, Montana632.9 GWhSep 1952Dec 2025 Water
#15Judith Gap Wind Energy CenterInvenergy Services LLCHarlowton, Montana413.7 GWhNov 2005Aug 2026 Wind
#2LibbyUSACE Northwestern DivisionLibby, Montana1.6 TWhJul 1975Dec 2025 Water
#11NaturEner Rim Rock EnergyNaturEner Rim Rock Energy LLCKevin, Montana581.4 GWhNov 2012Aug 2026 Wind
#3Noxon RapidsAvista CorpNoxon, Montana1.4 TWhAug 1959Dec 2025 Water
#8Pryor Mountain WindPacifiCorpBridger, Montana709.0 GWhMar 2021Aug 2026 Wind
#22Rainbow (MT)NorthWestern Energy (MT Hydro)Great Falls, Montana298.6 GWhFeb 2013Dec 2025 Water
#17RyanNorthWestern Energy (MT Hydro)Great Falls, Montana377.3 GWhJul 1915Dec 2025 Water
#5Selis Ksanka QlispeEnergy Keepers IncPolson, Montana970.6 GWhSep 1938Dec 2025 Water
#23Stillwater Wind, LLCPattern Operators LPReed Point, Montana278.3 GWhSep 2018Aug 2026 Wind
#14Thompson FallsNorthWestern Energy (MT Hydro)Thompson Falls, Montana439.8 GWhJun 1915Dec 2025 Water
#13Yellowstone County Generating StationNorthWestern Energy (MT wind/thermal)Laurel, Montana484.4 GWhJun 2024Aug 2026 Natural Gas
#20Yellowstone Energy LPYellowstone Energy LPBillings, Montana354.2 GWhMay 1995Aug 2026 Petroleum Coke : 99.6%
#12YellowtailU S Bureau of ReclamationHardin, Montana566.2 GWhJul 1966Dec 2025 Water
* Data is based on the last 12 months since Aug 2026.
View All Plants in Montana

Electricity Generation by Montana Counties

State RankCounty# Power PlantsNet Generation
Past 12 Months		Net Generation
from Natural Gas		Net Generation
from Wind		Net Generation
from Solar		Net Generation
from Nuclear
#19Beaverhead County, MT3149.4 GWh0.0 Wh0.0 Wh149.4 GWh0.0 Wh
#9Big Horn County, MT3937.4 GWh2.3 GWh0.0 Wh4.7 GWh0.0 Wh
#27Broadwater County, MT127.9 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#12Carbon County, MT5709.7 GWh0.0 Wh709.0 GWh0.0 Wh0.0 Wh
#4Cascade County, MT91.5 TWh0.0 Wh21.2 GWh4.2 GWh0.0 Wh
#10Custer County, MT2795.9 GWh2.4 GWh793.5 GWh0.0 Wh0.0 Wh
#28Dawson County, MT115.9 GWh15.7 GWh0.0 Wh0.0 Wh0.0 Wh
#18Deer Lodge County, MT2345.1 GWh345.1 GWh0.0 Wh0.0 Wh0.0 Wh
#22Fallon County, MT388.0 GWh0.0 Wh88.0 GWh0.0 Wh0.0 Wh
#13Flathead County, MT4690.0 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#31Gallatin County, MT17.0 GWh0.0 Wh0.0 Wh7.0 GWh0.0 Wh
#32Golden Valley County, MT14.6 GWh0.0 Wh0.0 Wh4.6 GWh0.0 Wh
#30Granite County, MT19.0 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#17Judith Basin County, MT2365.8 GWh0.0 Wh365.8 GWh0.0 Wh0.0 Wh
#6Lake County, MT1970.6 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#16Lewis and Clark County, MT4411.5 GWh0.0 Wh0.0 Wh10.0 GWh0.0 Wh
#26Liberty County, MT131.2 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#3Lincoln County, MT11.6 TWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#24Madison County, MT175.6 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#11McCone County, MT2756.9 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#25Meagher County, MT166.5 GWh0.0 Wh66.5 GWh0.0 Wh0.0 Wh
#29Richland County, MT210.7 GWh10.7 GWh0.0 Wh0.0 Wh0.0 Wh
#15Roosevelt County, MT3474.1 GWh231.2 GWh0.0 Wh0.0 Wh0.0 Wh
#1Rosebud County, MT510.3 TWh0.0 Wh2.1 TWh0.0 Wh0.0 Wh
#2Sanders County, MT21.8 TWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#21Silver Bow County, MT1111.1 GWh111.1 GWh0.0 Wh0.0 Wh0.0 Wh
#5Stillwater County, MT9981.4 GWh0.0 Wh926.0 GWh2.9 GWh0.0 Wh
#23Sweet Grass County, MT282.2 GWh0.0 Wh82.2 GWh0.0 Wh0.0 Wh
#20Teton County, MT3125.3 GWh0.0 Wh106.3 GWh0.0 Wh0.0 Wh
#8Toole County, MT3960.8 GWh0.0 Wh960.8 GWh0.0 Wh0.0 Wh
#14Wheatland County, MT8493.5 GWh0.0 Wh493.5 GWh0.0 Wh0.0 Wh
#7Yellowstone County, MT8962.7 GWh484.6 GWh4.2 GWh117.0 GWh0.0 Wh
* Net Generation data is based on the last 12 months since Aug 2026.
View All Counties in Montana

Top 20 Electricity Producing Cities in Montana

CityNet Generation# Power Plants
Anaconda-Deer Lodge County, Montana345.1 GWh1
Big Timber, Montana729.8 GWh2
Billings, Montana474.1 GWh4
Bridger, Montana709.0 GWh1
Colstrip, Montana8.2 TWh2
Columbia Falls, Montana648.3 GWh2
Culbertson, Montana474.1 GWh3
Fort Peck, Montana756.9 GWh1
Geyser, Montana365.8 GWh2
Great Falls, Montana1.2 TWh6
Hardin, Montana937.4 GWh3
Harlowton, Montana413.7 GWh1
Helena, Montana406.0 GWh3
Kevin, Montana581.4 GWh1
Laurel, Montana484.4 GWh1
Libby, Montana1.6 TWh1
Miles City, Montana2.9 TWh5
Noxon, Montana1.4 TWh1
Polson, Montana970.6 GWh1
Thompson Falls, Montana439.8 GWh1
* Data is based on the last 12 months since Aug 2026.
Browse All Cities in Montana

Electricity Generation for Neighboring States

National RankStateNet Generation# Power Plants
#12Arizona119.5 TWh274
#4California201.8 TWh2,537
#31Colorado53.9 TWh416
#42Idaho20.5 TWh202
#5Illinois192.9 TWh923
#21Iowa75.6 TWh366
#27Kansas62.3 TWh228
#29Minnesota57.5 TWh939
#23Missouri71.6 TWh197
#37Nebraska40.2 TWh165
#32Nevada46.6 TWh162
#33New Mexico46.1 TWh225
#35North Dakota44.9 TWh81
#18Oklahoma94.2 TWh191
#25Oregon65.8 TWh361
#41South Dakota21.3 TWh65
#39Utah39.2 TWh193
#13Washington110.7 TWh193
#26Wisconsin64.2 TWh365
#36Wyoming44.1 TWh101
* Net Generation data is based on the last 12 months since Aug 2026.