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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 Sep 2025.

Companies on File67
Plants on File99
Total Generation1.95G MMBtu
Total Sales 1.20G kWh
Total Revenue $141.17M

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

27.8 TWh

Total Annual Fuel Consumption

205.5 M MMBtu

Electric Companies in Montana

67

Montana
Power Plants

99

Natural Gas Rank

#48

Coal Rank

#28

Nuclear Rank

#40

Hydroelectric Rank

#6

Wind Rank

#18

Solar Rank

#42

Monthly Net Generation for Montana

Electricity Sales Distribution

Electricity Sales, Price, and Revenue Breakdown

SalesPrice (Avg)Revenue
Residential402.10M kWh14.64 cents/kWh$58.85M
Commercial422.01M kWh12.94 cents/kWh$54.60M
Industrial378.75M kWh7.32 cents/kWh$27.72M
Transportation0 kWh0.00 cents/kWh$0
Total1.20G kWh11.74 cents/kWh$141.17M

* Data is aggregated from Jan 2001 to Sep 2025.

Production by Source

Largest 24 Power Plants in Montana

RankPlantUtilityLocationAnnual GenerationInitial Operation DateLast UpdateFuel Types
#23Canyon FerryU S Bureau of ReclamationHelena, Montana275.1 GWhNov 1953Dec 2024 Water
#6Clearwater Wind EastClearwater Wind East, LLCMiles City, Montana827.6 GWhDec 2023Sep 2025 Wind
#4Clearwater Wind IClearwater Energy Resources LLCMiles City, Montana1.2 TWhOct 2022Sep 2025 Wind
#18Clearwater Wind IIClearwater Wind II, LLCMiles City, Montana395.2 GWhNov 2023Sep 2025 Wind
#19Clearwater Wind IIIClearwater Wind III, LLCMiles City, Montana371.0 GWhAug 2024Sep 2025 Wind
#1ColstripTalen Montana LLCColstrip, Montana9.4 TWhOct 1975Sep 2025 Subbituminous Coal : 99.9%
#22Colstrip Energy LPColstrip Energy LPColstrip, Montana287.5 GWhJan 1990Dec 2024 Waste/Other Coal : 99.8%
#11Dave Gates Generating StationNorthWestern Energy (MT wind/thermal)Anaconda, Montana551.8 GWhDec 2010Sep 2025 Natural Gas
#9Fort PeckUSACE-OmahaFort Peck, Montana751.6 GWhJun 1943Dec 2024 Water
#13Hardin Generator ProjectHeorot Power ManagementHardin, Montana481.0 GWhFeb 2006Dec 2024 Subbituminous Coal : 97.5% Bituminous Coal : 1.6% Natural Gas : 0.9%
#24HolterNorthWestern Energy (MT Hydro)Wolf Creek, Montana265.8 GWhJun 1918Dec 2024 Water
#10Hungry HorseU S Bureau of ReclamationColumbia Falls, Montana730.3 GWhSep 1952Dec 2024 Water
#17Judith Gap Wind Energy CenterInvenergy Services LLCHarlowton, Montana403.0 GWhNov 2005Sep 2025 Wind
#2LibbyUSACE Northwestern DivisionLibby, Montana1.9 TWhJul 1975Dec 2024 Water
#12NaturEner Rim Rock EnergyNaturEner Rim Rock Energy LLCKevin, Montana544.5 GWhNov 2012Sep 2025 Wind
#3Noxon RapidsAvista CorpNoxon, Montana1.3 TWhAug 1959Dec 2024 Water
#8Pryor Mountain WindPacifiCorpBridger, Montana752.5 GWhMar 2021Sep 2025 Wind
#20Rainbow (MT)NorthWestern Energy (MT Hydro)Great Falls, Montana329.0 GWhFeb 2013Dec 2024 Water
#15RyanNorthWestern Energy (MT Hydro)Great Falls, Montana434.6 GWhJul 1915Dec 2024 Water
#5Selis Ksanka QlispeEnergy Keepers IncPolson, Montana970.3 GWhSep 1938Dec 2024 Water
#14Thompson FallsNorthWestern Energy (MT Hydro)Thompson Falls, Montana436.4 GWhJun 1915Dec 2024 Water
#21Yellowstone County Generating StationNorthWestern Energy (MT wind/thermal)Laurel, Montana296.7 GWhJun 2024Sep 2025 Natural Gas
#16Yellowstone Energy LPYellowstone Energy LPBillings, Montana426.3 GWhMay 1995Sep 2025 Petroleum Coke : 98.9% Other Gas : 0.9%
#7YellowtailU S Bureau of ReclamationHardin, Montana798.4 GWhJul 1966Dec 2024 Water
* Data is based on the last 12 months since Sep 2025.
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
#20Beaverhead County, MT3166.2 GWh0.0 Wh0.0 Wh166.2 GWh0.0 Wh
#5Big Horn County, MT31.3 TWh4.3 GWh0.0 Wh5.1 GWh0.0 Wh
#26Broadwater County, MT147.4 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#11Carbon County, MT5756.3 GWh0.0 Wh752.5 GWh0.0 Wh0.0 Wh
#4Cascade County, MT91.6 TWh0.0 Wh108.0 MWh5.1 GWh0.0 Wh
#9Custer County, MT2827.9 GWh321.2 MWh827.6 GWh0.0 Wh0.0 Wh
#32Dawson County, MT12.6 GWh2.3 GWh0.0 Wh0.0 Wh0.0 Wh
#13Deer Lodge County, MT2551.8 GWh551.8 GWh0.0 Wh0.0 Wh0.0 Wh
#22Fallon County, MT386.0 GWh0.0 Wh86.0 GWh0.0 Wh0.0 Wh
#10Flathead County, MT4790.5 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, MT15.2 GWh0.0 Wh0.0 Wh5.2 GWh0.0 Wh
#28Granite County, MT111.0 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#18Judith Basin County, MT2351.7 GWh0.0 Wh351.7 GWh0.0 Wh0.0 Wh
#7Lake County, MT1970.3 GWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#16Lewis 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
#29Richland County, MT27.6 GWh7.6 GWh0.0 Wh0.0 Wh0.0 Wh
#14Roosevelt County, MT3513.8 GWh251.2 GWh0.0 Wh0.0 Wh0.0 Wh
#1Rosebud County, MT511.7 TWh0.0 Wh2.0 TWh0.0 Wh0.0 Wh
#3Sanders County, MT21.8 TWh0.0 Wh0.0 Wh0.0 Wh0.0 Wh
#19Silver Bow County, MT1185.4 GWh185.4 GWh0.0 Wh0.0 Wh0.0 Wh
#17Stillwater County, MT9352.6 GWh0.0 Wh295.7 GWh3.2 GWh0.0 Wh
#25Sweet Grass County, MT266.0 GWh0.0 Wh66.0 GWh0.0 Wh0.0 Wh
#21Teton County, MT3127.2 GWh0.0 Wh108.0 GWh0.0 Wh0.0 Wh
#6Toole County, MT3993.8 GWh0.0 Wh993.8 GWh0.0 Wh0.0 Wh
#15Wheatland County, MT8487.4 GWh0.0 Wh487.4 GWh0.0 Wh0.0 Wh
#8Yellowstone County, MT8885.9 GWh297.5 GWh4.2 GWh153.4 GWh0.0 Wh
* Net Generation data is based on the last 12 months since Sep 2025.
View All Counties in Montana

Top 20 Electricity Producing Cities in Montana

CityNet Generation# Power Plants
Anaconda-Deer Lodge County, Montana551.8 GWh1
Billings, Montana585.0 GWh4
Bridger, Montana752.5 GWh1
Colstrip, Montana9.7 TWh2
Columbia Falls, Montana751.4 GWh2
Culbertson, Montana513.8 GWh3
Fort Peck, Montana751.6 GWh1
Geyser, Montana351.7 GWh2
Great Falls, Montana1.4 TWh6
Hardin, Montana1.3 TWh3
Harlowton, Montana403.0 GWh1
Helena, Montana415.0 GWh3
Kevin, Montana544.5 GWh1
Laurel, Montana296.7 GWh1
Libby, Montana1.9 TWh1
Miles City, Montana2.8 TWh5
Noxon, Montana1.3 TWh1
Polson, Montana970.3 GWh1
Thompson Falls, Montana436.4 GWh1
Wolf Creek, Montana265.8 GWh1
* Data is based on the last 12 months since Sep 2025.
Browse All Cities in Montana

Electricity Generation for Neighboring States

National RankStateNet Generation# Power Plants
#12Arizona118.5 TWh251
#4California210.8 TWh2,438
#30Colorado56.9 TWh367
#43Idaho20.6 TWh200
#5Illinois189.2 TWh652
#20Iowa73.8 TWh354
#27Kansas63.1 TWh223
#28Minnesota60.0 TWh913
#23Missouri69.4 TWh187
#36Nebraska38.9 TWh154
#32Nevada45.2 TWh157
#38New Mexico37.6 TWh192
#35North Dakota42.3 TWh75
#18Oklahoma91.3 TWh179
#26Oregon64.1 TWh345
#42South Dakota21.6 TWh62
#37Utah38.2 TWh185
#16Washington102.4 TWh191
#24Wisconsin66.5 TWh329
#33Wyoming44.9 TWh100

* Net Generation data is based on the last 12 months since Sep 2025