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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 Feb 2026.

Companies on File67
Plants on File99
Total Generation2.42G MMBtu
Total Sales 1.35G kWh
Total Revenue $153.35M

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

27.4 TWh

Total Annual Fuel Consumption

198.5 M MMBtu

Electric Companies in Montana

67

Montana
Power Plants

99

Natural Gas Rank

#47

Coal Rank

#28

Nuclear Rank

#40

Hydroelectric Rank

#5

Wind Rank

#18

Solar Rank

#43

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
Residential557.02M kWh13.33 cents/kWh$74.27M
Commercial429.26M kWh12.52 cents/kWh$53.75M
Industrial366.85M kWh6.90 cents/kWh$25.32M
Transportation0 kWh0.00 cents/kWh$0
Total1.35G kWh11.33 cents/kWh$153.35M

* Data is aggregated from Jan 2001 to Feb 2026.

Production by Source for Montana

Download Source Breakdown

Largest 24 Power Plants in Montana

RankPlantUtilityLocationAnnual GenerationInitial Operation DateLast UpdateFuel Types
#21Beaver Creek Wind FacilityPuget Sound Energy IncBig Timber, Montana344.4 GWh-Feb 2026 Wind
#24Canyon FerryU S Bureau of ReclamationHelena, Montana275.1 GWhNov 1953Dec 2024 Water
#7Clearwater Wind EastClearwater Wind East, LLCMiles City, Montana792.3 GWhDec 2023Feb 2026 Wind
#4Clearwater Wind IClearwater Energy Resources LLCMiles City, Montana1.3 TWhOct 2022Feb 2026 Wind
#19Clearwater Wind IIClearwater Wind II, LLCMiles City, Montana389.7 GWhNov 2023Feb 2026 Wind
#20Clearwater Wind IIIClearwater Wind III, LLCMiles City, Montana365.7 GWhAug 2024Feb 2026 Wind
#1ColstripTalen Montana LLCColstrip, Montana8.7 TWhOct 1975Feb 2026 Subbituminous Coal : 99.9%
#23Colstrip Energy LPColstrip Energy LPColstrip, Montana287.5 GWhJan 1990Dec 2024 Waste/Other Coal : 99.8%
#14Dave Gates Generating StationNorthWestern Energy (MT wind/thermal)Anaconda, Montana437.7 GWhDec 2010Feb 2026 Natural Gas
#8Fort PeckUSACE-OmahaFort Peck, Montana751.6 GWhJun 1943Dec 2024 Water
#12Hardin Generator ProjectHeorot Power ManagementHardin, Montana481.0 GWhFeb 2006Dec 2024 Subbituminous Coal : 97.5% Bituminous Coal : 1.6% Natural Gas : 0.9%
#10Hungry HorseU S Bureau of ReclamationColumbia Falls, Montana730.3 GWhSep 1952Dec 2024 Water
#17Judith Gap Wind Energy CenterInvenergy Services LLCHarlowton, Montana422.3 GWhNov 2005Feb 2026 Wind
#2LibbyUSACE Northwestern DivisionLibby, Montana1.9 TWhJul 1975Dec 2024 Water
#11NaturEner Rim Rock EnergyNaturEner Rim Rock Energy LLCKevin, Montana551.0 GWhNov 2012Feb 2026 Wind
#3Noxon RapidsAvista CorpNoxon, Montana1.3 TWhAug 1959Dec 2024 Water
#9Pryor Mountain WindPacifiCorpBridger, Montana748.6 GWhMar 2021Feb 2026 Wind
#22Rainbow (MT)NorthWestern Energy (MT Hydro)Great Falls, Montana329.0 GWhFeb 2013Dec 2024 Water
#16RyanNorthWestern Energy (MT Hydro)Great Falls, Montana434.6 GWhJul 1915Dec 2024 Water
#5Selis Ksanka QlispeEnergy Keepers IncPolson, Montana970.3 GWhSep 1938Dec 2024 Water
#15Thompson FallsNorthWestern Energy (MT Hydro)Thompson Falls, Montana436.4 GWhJun 1915Dec 2024 Water
#18Yellowstone County Generating StationNorthWestern Energy (MT wind/thermal)Laurel, Montana390.7 GWhJun 2024Feb 2026 Natural Gas
#13Yellowstone Energy LPYellowstone Energy LPBillings, Montana448.7 GWhMay 1995Feb 2026 Petroleum Coke : 99.5%
#6YellowtailU S Bureau of ReclamationHardin, Montana798.4 GWhJul 1966Dec 2024 Water
* Data is based on the last 12 months since Feb 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, MT3163.9 GWh0.0 Wh0.0 Wh163.9 GWh0.0 Wh
#5Big Horn County, MT31.3 TWh4.3 GWh0.0 Wh5.0 GWh0.0 Wh
#26Broadwater County, MT147.4 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#11Carbon County, MT5752.4 GWh0.0 Wh748.6 GWh0.0 Wh0.0 Wh
#4Cascade County, MT91.6 TWh0.0 Wh108.0 MWh5.0 GWh0.0 Wh
#9Custer County, MT2792.6 GWh321.2 MWh792.3 GWh0.0 Wh0.0 Wh
#32Dawson County, MT12.6 GWh2.3 GWh0.0 Wh0.0 Wh0.0 Wh
#16Deer Lodge County, MT2437.7 GWh437.7 GWh0.0 Wh0.0 Wh0.0 Wh
#22Fallon County, MT386.0 GWh0.0 Wh86.0 GWh0.0 Wh0.0 Wh
#10Flathead County, MT4790.0 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#31Gallatin County, MT13.7 GWh0.0 Wh0.0 Wh3.7 GWh0.0 Wh
#30Golden Valley County, MT14.9 GWh0.0 Wh0.0 Wh4.9 GWh0.0 Wh
#29Granite County, MT111.0 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#18Judith Basin County, MT2376.0 GWh0.0 Wh376.0 GWh0.0 Wh0.0 Wh
#8Lake County, MT1970.3 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#17Lewis and Clark County, MT4420.9 GWh0.0 Wh0.0 Wh11.4 GWh0.0 Wh
#27Liberty County, MT136.1 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#2Lincoln County, MT11.9 TWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#23Madison County, MT176.2 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#12McCone County, MT2751.6 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#24Meagher County, MT172.8 GWh0.0 Wh72.8 GWh0.0 Wh0.0 Wh
#28Richland County, MT211.8 GWh11.8 GWh0.0 Wh0.0 Wh0.0 Wh
#14Roosevelt County, MT3510.0 GWh251.2 GWh0.0 Wh0.0 Wh0.0 Wh
#1Rosebud County, MT511.0 TWh0.0 Wh2.1 TWh0.0 Wh0.0 Wh
#3Sanders County, MT21.8 TWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#20Silver Bow County, MT1134.5 GWh134.5 GWh0.0 Wh0.0 Wh0.0 Wh
#13Stillwater County, MT9665.1 GWh0.0 Wh608.2 GWh3.2 GWh0.0 Wh
#25Sweet Grass County, MT271.7 GWh0.0 Wh71.7 GWh0.0 Wh0.0 Wh
#21Teton County, MT3127.2 GWh0.0 Wh108.0 GWh0.0 Wh0.0 Wh
#6Toole County, MT3991.4 GWh0.0 Wh991.4 GWh0.0 Wh0.0 Wh
#15Wheatland County, MT8506.7 GWh0.0 Wh506.7 GWh0.0 Wh0.0 Wh
#7Yellowstone County, MT8988.9 GWh391.5 GWh0.0 Wh144.3 GWh0.0 Wh
* Net Generation data is based on the last 12 months since Feb 2026.
View All Counties in Montana

Top 20 Electricity Producing Cities in Montana

CityNet Generation# Power Plants
Anaconda-Deer Lodge County, Montana437.7 GWh1
Big Timber, Montana416.1 GWh2
Billings, Montana598.2 GWh3
Bridger, Montana748.6 GWh1
Colstrip, Montana8.9 TWh2
Columbia Falls, Montana750.9 GWh2
Culbertson, Montana510.0 GWh3
Fort Peck, Montana751.6 GWh1
Geyser, Montana376.0 GWh2
Great Falls, Montana1.4 TWh6
Hardin, Montana1.3 TWh3
Harlowton, Montana422.3 GWh1
Helena, Montana415.0 GWh3
Kevin, Montana551.0 GWh1
Laurel, Montana390.7 GWh1
Libby, Montana1.9 TWh1
Miles City, Montana2.8 TWh5
Noxon, Montana1.3 TWh1
Polson, Montana970.3 GWh1
Thompson Falls, Montana436.4 GWh1
* Data is based on the last 12 months since Feb 2026.
Browse All Cities in Montana

Electricity Generation for Neighboring States

National RankStateNet Generation# Power Plants
#12Arizona117.4 TWh251
#4California203.3 TWh2,438
#30Colorado54.8 TWh368
#43Idaho20.7 TWh200
#5Illinois190.4 TWh656
#21Iowa74.8 TWh355
#27Kansas62.6 TWh223
#29Minnesota60.9 TWh913
#23Missouri71.3 TWh191
#37Nebraska39.8 TWh154
#32Nevada45.0 TWh157
#36New Mexico40.4 TWh192
#35North Dakota42.4 TWh75
#18Oklahoma89.6 TWh180
#26Oregon65.2 TWh345
#42South Dakota21.8 TWh62
#39Utah36.9 TWh186
#14Washington107.3 TWh191
#25Wisconsin65.7 TWh330
#33Wyoming44.9 TWh100
* Net Generation data is based on the last 12 months since Feb 2026.