List of power stations in Montana

Sources of Montana utility-scale electricity generation:
full-year 2023 ^[1]

  Coal (44.8%)

  Hydroelectric (29.7%)

  Wind (17.7%)

  Natural Gas (3.9%)

  Petroleum (1.9%)

  Solar (0.9%)

  Biomass (0.1%)

  Other (0.9%)

This is a list of electricity-generating power stations in the U.S. state of Montana , sorted by type and name. In 2022, Montana had a total summer capacity of 6,439 MW through all of its power plants, and a net generation of 27,088 GWh. ^[2] In 2023, the electrical energy generation mix was 44.8% coal, 29.7% hydroelectric, 17.7% wind, 3.9% natural gas, 1.9% petroleum, 0.9% solar, 0.1% biomass, and 0.9% other. Small-scale solar, including customer-owned photovoltaic panels, delivered and additional 76 GWh to the state's electrical grid in 2023. ^[1]

During 2019, Montana exported about one-half of the electricity generated by its power plants to other states. Montana has the largest recoverable deposits of coal in the nation, accounting for 30% of U.S. reserves. In recent years three-quarters of the coal mined in Montana has been exported, with over one-third going to Asia via western Canada. ^[3]

Nuclear power stations

Montana had no utility-scale plants that used fissile material as a fuel in 2022. ^[1]

Fossil-fuel power stations

Data from the U.S. Energy Information Administration serves as a general reference. ^[4]

Coal

A useful map ^[5] of coal generation plants is provided by the Sierra Club.

Name	Location	Coordinates	Capacity (MW)	Year Opened	Scheduled Retirement	Refs
Colstrip Steam Electric Station	Rosebud County	45°52′59″N106°36′50″W / 45.8831°N 106.614°W / 45.8831; -106.614 (Colstrip Coal Plant)	1480	1975 (Unit 1- 340MW) 1976 (Unit 2- 340MW) 1984 (Unit 3- 740MW) 1986 (Unit 4- 740MW)	2020 (Unit 1- closed) 2020 (Unit 2- closed) 2027 (Unit 3) 2027 (Unit 4)	[6] [7] [8]
Colstrip Energy LP Plant	Rosebud County	45°58′31″N106°39′17″W / 45.9752°N 106.6547°W / 45.9752; -106.6547 (Colstrip Energy LP Plant)	38	1990	TBD	[9] [10]
Hardin Generator Project	Big Horn County	45°45′28″N107°36′00″W / 45.7578°N 107.6000°W / 45.7578; -107.6000 (Hardin Generator Project)	107	2006	TBD [A]	[11]
Lewis & Clark Station	Richland County	47°40′43″N104°09′24″W / 47.6785°N 104.1566°W / 47.6785; -104.1566 (Lewis & Clark Station)	53	1958	2021 (closed)	[12] [13] [14] [15]
Sidney Sugars Plant	Richland County	47°43′02″N104°08′08″W / 47.7172°N 104.1356°W / 47.7172; -104.1356 (Sydney Sugars Plant)	4.0	1950	TBD	[16]

^A The Hardin facility was mostly idle and is re-ramping to service cryptocurrency mining. ^[17]

Natural Gas and Petroleum

Name	Location	Coordinates	Capacity (MW)	Fuel Type	Generation Type	Year Opened	Refs
Basin Creek Generation Plant	Silver Bow County	45°55′45″N112°31′10″W / 45.9293°N 112.5194°W / 45.9293; -112.5194 (Basin Creek Plant)	54	gas	Reciprocating Engine (x9)	2006	[18] [19]
Culbertson Generation Station	Roosevelt County	48°12′36″N104°23′30″W / 48.2100°N 104.3917°W / 48.2100; -104.3917 (Culbertson Generation Station)	85	gas	Simple Cycle	2010	[20]
Dave Gates Generating Station [A]	Deer Lodge County	46°06′17″N112°52′36″W / 46.1047°N 112.8766°W / 46.1047; -112.8766 (Dave Gates Generating Station)	150	gas	Simple Cycle (x3)	2011	[21]
Glendive Gas Turbine	Dawson County	47°03′14″N104°44′24″W / 47.0539°N 104.7400°W / 47.0539; -104.7400 (Glendive GT Plant)	75	gas	Simple Cycle (x2)	1979/2003	[22]
Miles City Gas Turbine	Custer County	46°24′40″N105°47′43″W / 46.4112°N 105.7953°W / 46.4112; -105.7953 (Miles City GT Plant)	24	gas	Simple Cycle	1972	[23]
OREG 1 & 2	Roosevelt County	48°12′51″N104°23′51″W / 48.2141°N 104.3975°W / 48.2141; -104.3975 (OREG 1/2)	40	waste heat from gas compressor turbine	ORC Generator (x8)	2006/2009	[24]
Phillips 66 Billings Refinery	Yellowstone County	45°46′37″N108°29′28″W / 45.7769°N 108.4911°W / 45.7769; -108.4911 (Billing Refinery)	1.5	petroleum gases	Steam Turbine	2007
Yellowstone Energy	Yellowstone County	45°48′42″N108°25′40″W / 45.8117°N 108.4278°W / 45.8117; -108.4278 (Yellowstone Plant)	52	petroleum	Steam Turbine	1995	[25]

^A formerly Mill Creek Generating Station

Renewable power stations

Data from the U.S. Energy Information Administration serves as a general reference. ^[4]

Biomass

Name	Location	Coordinates	Capacity (MW)	Fuel	Generation Type	Year Opened	Refs
Stoltze CoGen1	Flathead County	48°23′16″N114°14′27″W / 48.3877°N 114.2409°W / 48.3877; -114.2409 (Stoltze Cogen)	3.0	wood/wood waste	Steam Turbine	2013	[26]

Hydroelectric

See also: List of dams and reservoirs in Montana

Additional Montana hydroelectric general references: ^{[27] [28]}

Name	Location	Coordinates	Capacity (MW)	Number of Turbines	Year Opened	Refs
Bigfork Hydro	Flathead		4.5	3	1908
Black Eagle Hydro	Cascade County	47°31′17″N111°15′41″W / 47.5213°N 111.2614°W / 47.5213; -111.2614 (Black Eagle Hydro)	21	3	1927	[29]
Broadwater Power Project	Broadwater County	46°07′14″N111°24′27″W / 46.1206°N 111.4076°W / 46.1206; -111.4076 (Broadwater Power Project)	9.7	1	1989	[30]
Canyon Ferry Powerplant	Lewis and Clark County	46°38′56″N111°43′40″W / 46.6490°N 111.7279°W / 46.6490; -111.7279 (Canyon Ferry Powerplant)	57.6	3	1953-1954	[31]
Cochrane Hydro	Cascade County	47°32′15″N111°11′42″W / 47.5375°N 111.1950°W / 47.5375; -111.1950 (Cochrane Hydro)	62	2	1958	[29]
Flint Creek Hydro	Granite County	46°13′39″N113°17′41″W / 46.2275°N 113.2947°W / 46.2275; -113.2947 (Flint Creek Hydro)	2.0	1	2013	[32]
Fort Peck Hydropower Plant	McCone County	48°00′44″N106°24′44″W / 48.0122°N 106.4123°W / 48.0122; -106.4123 (Fort Peck Hydropower Plant)	218	5	1943/1948/ 1951/1961	[33]
Hauser Hydro	Lewis and Clark County	46°45′57″N111°53′14″W / 46.7659°N 111.8873°W / 46.7659; -111.8873 (Hauser Hydro)	18.2	6	1911	[29]
Holter Hydro	Cascade County	46°59′29″N112°00′17″W / 46.9915°N 112.0047°W / 46.9915; -112.0047 (Holter Hydro)	53.2	4	1918	[29]
Hungry Horse Powerplant	Flathead County	48°20′29″N114°00′52″W / 48.3415°N 114.0144°W / 48.3415; -114.0144 (Hungry Horse Hydro Powerplant)	427	4	1952-1953	[34]
Libby Hydro Plant	Lincoln County	48°24′35″N115°18′51″W / 48.4098°N 115.3143°W / 48.4098; -115.3143 (Libby Hydro Plant)	525	5	1975-1976/ 1984	[35]
Madison Hydro	Madison County	45°29′16″N111°38′02″W / 45.4879°N 111.6338°W / 45.4879; -111.6338 (Madison Hydro)	8.0	4	1906/1908	[29]
Morony Hydro	Cascade County	47°34′54″N111°03′39″W / 47.5817°N 111.0609°W / 47.5817; -111.0609 (Morony Hydro)	49	2	1930	[29]
Mystic Lake Hydro	Stillwater County	45°13′33″N109°45′45″W / 45.2257°N 109.7625°W / 45.2257; -109.7625 (Mystic Lake Hydro)	12	2	1925	[29]
Noxon Rapids Hydro	Sanders County	47°57′38″N115°44′01″W / 47.9605°N 115.7336°W / 47.9605; -115.7336 (Noxon Rapids Hydro Plant)	580	5	1959-1960/ 1977	[36]
Rainbow Hydro	Cascade County	47°32′04″N111°12′16″W / 47.5344°N 111.2045°W / 47.5344; -111.2045 (Rainbow Hydro)	64	1	2013	[29]
Ryan Hydro	Cascade County	47°34′12″N111°07′21″W / 47.5699°N 111.1225°W / 47.5699; -111.1225 (Ryan Hydro)	69.5	6	1915-1916	[29]
Seli's Ksanka Qlispe' Hydro (formerly Kerr Dam Hydro)	Lake County	47°40′40″N114°14′02″W / 47.6777°N 114.2339°W / 47.6777; -114.2339 (Seli's Ksanka Qlispe' Hydro)	206	3	1938/1949/ 1954	[29]
South Dry Creek Hydro	Carbon County	45°12′23″N109°09′55″W / 45.2063°N 109.1652°W / 45.2063; -109.1652 (South Dry Creek Hydro)	2.0	1	1985	[37]
Thompson Falls Hydro	Sanders County	47°35′36″N115°21′30″W / 47.5932°N 115.3582°W / 47.5932; -115.3582 (Thompson Falls Hydro)	94	7	1915-1917	[29]
Tiber Dam Hydro	Liberty County	48°19′05″N111°06′06″W / 48.318°N 111.1018°W / 48.318; -111.1018 (Tiber Dam Hydro)	7.5	1	2004	[27]
Turnbull Hydro	Teton County	47°36′19″N112°05′49″W / 47.6053°N 112.0969°W / 47.6053; -112.0969 (Turnbull Hydro)	13	2	2011	[38]
Yellowtail Powerplant	Big Horn County	45°18′27″N107°57′27″W / 45.3074°N 107.9575°W / 45.3074; -107.9575 (Yellowtail Powerplant)	278	4	1966	[39]

Wind

See also: Wind power in Montana

Name	Location	Coordinates	Capacity (MW)	Number of Turbines	Year Opened	Turbine Mfg Spec	Refs
Big Timber Wind Farm (Greycliff)	Sweet Grass County	45°51′19″N109°38′57″W / 45.8554°N 109.6492°W / 45.8554; -109.6492 (Big Timber Wind)	25	14	2018	GE 1.8MW	[40]
Diamond Willow Wind Facility	Fallon County	46°16′31″N104°11′01″W / 46.2753°N 104.1836°W / 46.2753; -104.1836 (Diamond Willow Wind)	30	20	2008	GE 1.5MW	[40]
Fairfield Wind	Teton County	47°43′24″N111°57′55″W / 47.7233°N 111.9653°W / 47.7233; -111.9653 (Fairfield Wind)	10	6	2014	GE 1.6/1.7MW	[40]
Glacier Wind I&II	Glacier County Toole County	48°32′00″N112°11′05″W / 48.5333°N 112.1847°W / 48.5333; -112.1847 (Glacier Wind)	210	140	2008	Acciona 1.5MW	[41]
Gordon Butte Wind	Meagher County	46°24′43″N110°20′16″W / 46.4119°N 110.3378°W / 46.4119; -110.3378 (Gordon Butte Wind)	17.7	9	2012 2018	GE 1.6MW GE 2.7MW	[40]
Greenfield Wind	Teton County	47°43′23″N111°57′47″W / 47.7230°N 111.9630°W / 47.7230; -111.9630 (Greenfield Wind)	25	13	2016	GE 2.3MW	[40]
Horseshoe Bend Wind Park	Cascade County	47°29′54″N111°26′21″W / 47.4983°N 111.4392°W / 47.4983; -111.4392 (Horseshoe Bend Wind Park)	9.0	6	2006	GE 1.5MW	[40]
Judith Gap Wind Energy Center	Wheatland County	46°34′21″N109°45′11″W / 46.5725°N 109.7531°W / 46.5725; -109.7531 (Judith Gap Wind)	135	90	2006	GE 1.5MW	[22]
Musselshell Wind Project I&II	Wheatland County	46°16′31″N109°28′58″W / 46.2753°N 109.4827°W / 46.2753; -109.4827 (Musselshell Wind)	20	14	2013	GE 1.5MW	[40]
Pryor Mountain Wind Project [A]	Carbon County	45°08′05″N108°41′12″W / 45.13472°N 108.68667°W / 45.13472; -108.68667 (Pryor Mountain Wind)	240	114	2020	Vestas 2.0/2.2MW GE 2.3MW [42]	[43] [44]
Rim Rock Wind Farm	Glacier County Toole County	48°49′13″N112°06′12″W / 48.8202°N 112.1033°W / 48.8202; -112.1033 (Rim Rock Wind)	189	126	2012	Acciona 1.5MW	[45] [46]
Spion Kop Wind Farm	Judith Basin County	47°20′00″N110°38′21″W / 47.3333°N 110.6392°W / 47.3333; -110.6392 (Spion Kop Wind)	40	25	2013	GE 1.6MW	[40] [47]
Stillwater Wind	Stillwater County	45°51′57″N109°28′36″W / 45.8658°N 109.4766°W / 45.8658; -109.4766 (Stillwater Wind)	80	31	2018	Siemens-Gamesa 2.3/2.6MW	[48]
South Peak Wind	Judith Basin County	47°19′48″N110°36′53″W / 47.3299°N 110.6146°W / 47.3299; -110.6146 (South Peak Wind)	80	29	2020	GE 2.3/2.5MW	[49]
Two Dot Wind Farm	Wheatland County	46°26′58″N110°05′14″W / 46.4494°N 110.0872°W / 46.4494; -110.0872 (Two Dot Wind)	9.7	6	2014	GE 1.6MW	[40] [47]

^A formerly Mud Springs Wind

Solar

See also: Solar power in Montana

Project Name	Location	Coordinates	Capacity (MWAC)	Year Opened	Refs
Black Eagle Solar	Cascade County	47°32′51″N111°15′14″W / 47.5475°N 111.2540°W / 47.5475; -111.2540 (Black Eagle Solar)	3.0	2017	[50]
Great Divide Solar	Lewis and Clark County	46°48′21″N112°14′56″W / 46.8057°N 112.2490°W / 46.8057; -112.2490 (Great Divide Solar)	3.0	2017	[51]
Green Meadow Solar	Lewis and Clark County	46°41′40″N112°03′49″W / 46.6945°N 112.0636°W / 46.6945; -112.0636 (Green Meadow Solar)	3.0	2017	[52]
Magpie Solar	Golden Valley County	46°17′29″N108°56′16″W / 46.2914°N 108.9379°W / 46.2914; -108.9379 (Magpie Solar)	3.0	2017	[53]
River Bend Solar	Stillwater County	45°42′14″N109°33′55″W / 45.7038°N 109.5652°W / 45.7038; -109.5652 (River Bend Solar)	2.0	2017	[54]
South Mills Solar	Big Horn County	45°43′48″N107°37′57″W / 45.7301°N 107.6326°W / 45.7301; -107.6326 (South Mills Solar)	3.0	2017	[55]

Storage power stations

Montana had no utility-scale storage power stations in 2019. ^[4] A proposed facility is the 400MW/1300MWh Gordon Butte Pumped Storage Project. ^[56]

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References

1. "Electricity Data Browser, Net generation for all sectors, Montana, Fuel Type-Check all, Annual, 2001–23". www.eia.gov. Retrieved 2024-04-17.
2. "Montana Electricity Profile". U.S. Energy Information Administration. Retrieved 2023-03-30.
3. "Montana Electricity Profile Analysis". U.S. EIA. Retrieved 2021-01-13.
4. Energy Information Administration (15 September 2020). "Form EIA-860 detailed data with previous form data (EIA-860A/860B)". eia.gov. Archived from the original on 18 September 2020.
5. Sierra Club-Beyond Coal
6. "Colstrip Steam Electric Station - Colstrip, Montana". Talen Energy. Retrieved 2020-11-19.
7. "Colstrip Steam Electric Station Units 1 and 2 to Retire". prnewswire.com. 2019-06-11.
8. "Colstrip Steam Plant - Global Energy Monitor". Global Energy Monitor. Retrieved 2021-01-10.
9. "Colstrip Energy LP Plant". Global Energy Observatory. Retrieved 2020-11-20.
10. "Colstrip Energy LP, monthly electricity data". U.S. Energy Information Administration. Retrieved 2020-11-20.
11. Tom Lutey (2019-03-01). "Hardin coal-fired power plant sells to possible cryptocurrency company". Billings Gazette.
12. "Lewis & Clark Station". Montana-Dakota Utilities. Retrieved 2020-11-20.
13. Tom Lutey (2019-02-19). "MDU to shutter Eastern Montana coal power plant in 2020". Billings Gazette.
14. "Eastern Montana coal plant closes". Montana Standard . Retrieved 2021-04-01.
15. [e-mail], Renée Jean. "Lewis and Clark Station could find new life in a world class way". Sidney Herald. Retrieved 2021-01-10.
16. "Sidney Sugars - Facility Information". American Crystal Sugar Company. Retrieved 2021-01-13.
17. Brian Spegele and Caitlan Ostroff (2021-05-21). "Bitcoin Miners Are Giving New Life to Old Fossil-Fuel Power Plants". Wall Street Journal.
18. "Basin Creek 51.8 MW Generation Plant". ITG Henneman Engineering Inc. Retrieved 2020-11-20.
19. Tim Trainor (2010-02-27). "The little power plant that could". Montana Standard.
20. "Culbertson Station". Basin Electric Cooperative. Retrieved 2020-11-20.
21. "NWE electricity generation - Dave Gates Generating Station at Mill Creek". Northwestern Energy. Retrieved 2020-11-19.
22. "Glendive gas turbine". Montana-Dakota Utilities. Retrieved 2020-11-20.
23. "Miles City gas turbine". Montana-Dakota Utilities. Retrieved 2020-11-20.
24. "Recovered Energy Generation". Ormat Technologies, Inc. Retrieved 2021-01-13.
25. "Yellowstone Energy Oil Plant". Global Energy Observatory. Retrieved 2021-01-13.
26. "Montana Biomass Energy Projects". Montana Department of Environmental Quality. Retrieved 2021-01-13.
27. "Montana's Hydroelectric Portfolio". Montana Department of Environmental Quality. Retrieved 2020-11-20.
28. "Hydroelectric projects in Montana". Foundation for Water and Energy Education. Retrieved 2020-11-20.
29. "NWE Hydroelectric Facilities". Northwestern Energy. Retrieved 2020-11-19.
30. "Toston Dam (Broadwater-Missouri) Factsheet" (PDF). Montana Department of Natural Resources and Conservation. 2014-10-31. Retrieved 2020-11-20.
31. "Canyon Ferry Dam". U.S. Bureau of Reclamation. Retrieved 2020-11-19.
32. George Plaven (2011-09-05). "Turning on the juice: Flint Creek dam to resume producing hydroelectric power in Granite County". The Montana Standard.
33. "USACE Hydropower at Fort Peck". U.S. Army Corps of Engineers. Retrieved 2020-11-20.
34. "Hungry Horse Powerplant". U.S. Bureau of Reclamation. Retrieved 2020-11-20.
35. "Libby Dam and Lake Koocanusa". U.S. Army Corps of Engineers. Retrieved 2020-11-20.
36. "Clark River Project - Noxon Rapids". Avista Corp. Retrieved 2020-11-20.
37. "South Dry Creek Hydro Plant". Global Energy Observatory. Retrieved 2021-01-14.
38. "Project aims to turn irrigation ditch into power". Northwest Renewable News. 2009-11-09. Retrieved 2020-11-20.
39. "Yellowtail Dam". U.S. Bureau of Reclamation. Retrieved 2020-11-20.
40. "MSU Wind Applications Center - Active Wind Project". Montana State University. Retrieved 2020-11-20.
41. LeAnne Kavanagh (October 28, 2009). "Glacier Wind Farm is state's biggest wind energy project". Shelby Promoter.
42. "Pryor Mountain Wind Project" (PDF). Rocky Mountain Power. Retrieved 2020-11-20.
43. Tom Lutey (2020-08-07). "Bridger wind farm could be finished by end of year". Billings Gazette.
44. Tom Lutey (2020-01-12). "Wind farm projects lining up to call hills around south-central montana town home". Billings Gazette.
45. Paula Moore (17 June 2013). "Rim Rock Wind Farm Is Largest-Capacity Wind Site in Montana". ENR Mountain States. Retrieved 12 January 2014.
46. "Rim Rock Wind Farm, Montana". Power Technology. Retrieved 1 May 2019.
47. "Wind Generation". Northwestern Energy. Retrieved 2020-11-20.
48. "Pattern's Stillwater Wind Comes To Life In Montana". North American Windpower. November 19, 2018.
49. "Renewable energy sites - South Peak". Allete Clean Energy / Allete Inc. Retrieved 2020-11-20.
50. Jo Dee Black (2017-06-01). "Construction on Black Eagle Solar well underway". Great Falls Tribune. Retrieved 2021-01-13.
51. "Great Divide". OneEnergy Renewables. Retrieved 2021-01-13.
52. "Green Meadow Solar". Renewable Northwest. Retrieved 2021-01-13.
53. "Magpie Solar Project". Solar Energy Resources. Retrieved 2021-01-13.
54. "River Bend Solar". Renewable Northwest. Retrieved 2021-01-13.
55. "South Mills Solar". Renewable Northwest. Retrieved 2021-01-13.
56. "Gordon Butte Pumped Storage Project". Gordon Butte Energy Park LLC. Retrieved 2021-04-02.