This is a list of electricity-generating power stations in the U.S. state of Montana, sorted by type and name. In 2019, Montana had a total summer capacity of 6,373 MW through all of its power plants, and a net generation of 27,797 GWh.[2] The corresponding electrical energy generation mix was 50.7% coal, 36.0% hydroelectric, 8.5% wind, 2.9% natural gas, 1.7% petroleum, 0.1% biomass and 0.1% solar. Small-scale solar, including customer-owned photovoltaic panels, delivered an additional net 24 GWh to the state's electrical grid. This compares as nearly equal to the generation by Montana's utility-scale solar PV plants.[1]
Sources of Montana utility-scale electricity generation:
full-year 2021 [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]
Map all coordinates using: OpenStreetMap |
Download coordinates as: KML |
Montana had no utility-scale plants that used fissile material as a fuel in 2019.[1]
Data from the U.S. Energy Information Administration serves as a general reference.[4]
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 | 45.8831°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 | 45.9752°N 106.6547°W / 45.9752; -106.6547 (Colstrip Energy LP Plant) | 38 | 1990 | TBD | [9][10] |
Hardin Generator Project | Big Horn County | 45.7578°N 107.6000°W / 45.7578; -107.6000 (Hardin Generator Project) | 107 | 2006 | TBD [A] | [11] |
Lewis & Clark Station | Richland County | 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 | 47.7172°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]
Name | Location | Coordinates | Capacity (MW) | Fuel Type | Generation Type | Year Opened | Refs |
---|---|---|---|---|---|---|---|
Basin Creek Generation Plant | Silver Bow County | 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 | 48.2100°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 | 46.1047°N 112.8766°W / 46.1047; -112.8766 (Dave Gates Generating Station) | 150 | gas | Simple Cycle (x3) | 2011 | [21] |
Glendive Gas Turbine | Dawson County | 47.0539°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 | 46.4112°N 105.7953°W / 46.4112; -105.7953 (Miles City GT Plant) | 24 | gas | Simple Cycle | 1972 | [23] |
OREG 1 & 2 | Roosevelt County | 48.2141°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 | 45.7769°N 108.4911°W / 45.7769; -108.4911 (Billing Refinery) | 1.5 | petroleum gases | Steam Turbine | 2007 | |
Yellowstone Energy | Yellowstone County | 45.8117°N 108.4278°W / 45.8117; -108.4278 (Yellowstone Plant) | 52 | petroleum | Steam Turbine | 1995 | [25] |
A formerly Mill Creek Generating Station
Data from the U.S. Energy Information Administration serves as a general reference.[4]
Name | Location | Coordinates | Capacity (MW) | Fuel | Generation Type | Year Opened | Refs |
---|---|---|---|---|---|---|---|
Stoltze CoGen1 | Flathead County | 48.3877°N 114.2409°W / 48.3877; -114.2409 (Stoltze Cogen) | 3.0 | wood/wood waste | Steam Turbine | 2013 | [26] |
![]() | This list is incomplete; you can help by adding missing items. (April 2021) |
Additional Montana hydroelectric general references:[27][28]
A formerly Mud Springs Wind
Project Name | Location | Coordinates | Capacity (MWAC) |
Year Opened |
Refs |
---|---|---|---|---|---|
Black Eagle Solar | Cascade County | 47.5475°N 111.2540°W / 47.5475; -111.2540 (Black Eagle Solar) | 3.0 | 2017 | [50] |
Great Divide Solar | Lewis and Clark County | 46.8057°N 112.2490°W / 46.8057; -112.2490 (Great Divide Solar) | 3.0 | 2017 | [51] |
Green Meadow Solar | Lewis and Clark County | 46.6945°N 112.0636°W / 46.6945; -112.0636 (Green Meadow Solar) | 3.0 | 2017 | [52] |
Magpie Solar | Golden Valley County | 46.2914°N 108.9379°W / 46.2914; -108.9379 (Magpie Solar) | 3.0 | 2017 | [53] |
River Bend Solar | Stillwater County | 45.7038°N 109.5652°W / 45.7038; -109.5652 (River Bend Solar) | 2.0 | 2017 | [54] |
South Mills Solar | Big Horn County | 45.7301°N 107.6326°W / 45.7301; -107.6326 (South Mills Solar) | 3.0 | 2017 | [55] |
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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