| Colstrip (3) | Rosebud | Operational | 823.7 MW | Coal | Talen Montana LLC |
| Colstrip (4) | Rosebud | Operational | 823.7 MW | Coal | Talen Montana LLC |
| Haymaker Hybrid (HAY) | Wheatland | Planned | 630 MW | Wind | Haymaker Energy Project LLC |
| Clearwater Wind I (CW1) | Rosebud | Operational | 365.5 MW | Wind | Clearwater Energy Resources LLC |
| Pryor Mountain Wind (1) | Carbon | Operational | 239.8 MW | Wind | PacifiCorp |
| Clearwater Wind East (CWE) | Custer | Operational | 207.9 MW | Wind | Clearwater Wind East, LLC |
| Anthelope Hills Solar Generation BESS (ARFL1) | Beaverhead | Planned | 200 MW | Solar | ARFL bn, LLC |
| Anthelope Hills Solar Generation BESS (ARFL2) | Beaverhead | Planned | 200 MW | Battery | ARFL bn, LLC |
| Oportunity Solar Generation and BESS (OPPO1) | Deer Lodge | Planned | 200 MW | Solar | OPPO bn, LLC |
| Oportunity Solar Generation and BESS (OPPO2) | Deer Lodge | Planned | 200 MW | Battery | OPPO bn, LLC |
| NaturEner Rim Rock Energy (RR) | Toole | Operational | 189 MW | Wind | NaturEner Rim Rock Energy LLC |
| Judith Gap Wind Energy Center (1) | Wheatland | Operational | 135 MW | Wind | Invenergy Services LLC |
| Hardin Generator Project (UNT1) | Big Horn | Operational | 115.7 MW | Coal | Heorot Power Management |
| Noxon Rapids (5) | Sanders | Operational | 114 MW | Hydro | Avista Corp |
| Culbertson Generation Station (01) | Roosevelt | Operational | 108.2 MW | Gas | Basin Electric Power Coop |
| Hungry Horse (1) | Flathead | Operational | 107 MW | Hydro | U S Bureau of Reclamation |
| Hungry Horse (2) | Flathead | Operational | 107 MW | Hydro | U S Bureau of Reclamation |
| Hungry Horse (3) | Flathead | Operational | 107 MW | Hydro | U S Bureau of Reclamation |
| Hungry Horse (4) | Flathead | Operational | 107 MW | Hydro | U S Bureau of Reclamation |
| NaturEner Glacier Wind Energy 1 (NGW1) | Toole | Operational | 106.5 MW | Wind | NaturEner Glacier Wind Energy 1 LLC |
| Libby (1) | Lincoln | Operational | 105 MW | Hydro | USACE Northwestern Division |
| Libby (2) | Lincoln | Operational | 105 MW | Hydro | USACE Northwestern Division |
| Libby (3) | Lincoln | Operational | 105 MW | Hydro | USACE Northwestern Division |
| Libby (4) | Lincoln | Operational | 105 MW | Hydro | USACE Northwestern Division |
| Libby (5) | Lincoln | Operational | 105 MW | Hydro | USACE Northwestern Division |
| NaturEner Glacier Wind Energy 2 (NGW2) | Toole | Operational | 103.5 MW | Wind | NaturEner Glacier Wind Energy 2 LLC |
| Clearwater Wind II (CW2) | Rosebud | Operational | 102.8 MW | Wind | Clearwater Wind II, LLC |
| Clearwater Wind III (CW3) | Rosebud | Operational | 100 MW | Wind | Clearwater Wind III, LLC |
| Noxon Rapids (1) | Sanders | Operational | 99 MW | Hydro | Avista Corp |
| Noxon Rapids (3) | Sanders | Operational | 99 MW | Hydro | Avista Corp |
| Noxon Rapids (4) | Sanders | Operational | 99 MW | Hydro | Avista Corp |
| Selis Ksanka Qlispe (KER3) | Lake | Operational | 86.6 MW | Hydro | Energy Keepers Inc |
| South Peak Wind (41001) | Judith Basin | Operational | 80 MW | Wind | ALLETE Clean Energy |
| MTSUN (MTSUN) | Yellowstone | Operational | 80 MW | Solar | Greenbacker Renewable Energy Corporation |
| Apex Solar (RSNAK) | Beaverhead | Operational | 80 MW | Solar | Apex Solar LLC |
| Jawbone Wind Project (JWPI) | Wheatland | Planned | 80 MW | Wind | Triple Oak Power LLC |
| Stillwater Wind, LLC (WT) | Stillwater | Operational | 79.7 MW | Wind | Pattern Operators LP |
| Noxon Rapids (2) | Sanders | Operational | 76.8 MW | Hydro | Avista Corp |
| Yellowtail (1) | Big Horn | Operational | 71.9 MW | Hydro | U S Bureau of Reclamation |
| Yellowtail (3) | Big Horn | Operational | 71.9 MW | Hydro | U S Bureau of Reclamation |
| Yellowtail (4) | Big Horn | Operational | 71.9 MW | Hydro | U S Bureau of Reclamation |
| Selis Ksanka Qlispe (KER1) | Lake | Operational | 70.6 MW | Hydro | Energy Keepers Inc |
| Selis Ksanka Qlispe (KER2) | Lake | Operational | 70.6 MW | Hydro | Energy Keepers Inc |
| Yellowstone Energy LP (GEN1) | Yellowstone | Operational | 68 MW | Coal | Yellowstone Energy LP |
| Dave Gates Generating Station (1) | Deer Lodge | Operational | 67.7 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Dave Gates Generating Station (2) | Deer Lodge | Operational | 67.7 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Dave Gates Generating Station (3) | Deer Lodge | Operational | 67.7 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowtail (2) | Big Horn | Operational | 62.5 MW | Hydro | U S Bureau of Reclamation |
| Beaver Creek Wind Facility (BCW1) | Stillwater | Operational | 62 MW | Wind | Puget Sound Energy Inc |
| Beaver Creek Wind Facility (BCW2) | Stillwater | Operational | 62 MW | Wind | Puget Sound Energy Inc |
| Beaver Creek Wind Facility (BCW3) | Stillwater | Operational | 62 MW | Wind | Puget Sound Energy Inc |
| Beaver Creek Wind Facility (BCW4) | Stillwater | Operational | 62 MW | Wind | Puget Sound Energy Inc |
| Rainbow (MT) (RAI9) | Cascade | Operational | 59 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Thompson Falls (TF7) | Sanders | Operational | 57.1 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Beartooth Energy Storage LLC (BEAR1) | Yellowstone | Planned | 50 MW | Battery | Beartooth Energy Storage, LLC |
| Colstrip Energy LP (GEN1) | Rosebud | Operational | 46.1 MW | Coal | Colstrip Energy LP |
| Glendive GT (GT-2) | Dawson | Operational | 43 MW | Gas | Montana-Dakota Utilities Co |
| Fort Peck (1) | McCone | Operational | 41.2 MW | Hydro | USACE-Omaha |
| Fort Peck (3) | McCone | Operational | 41.2 MW | Hydro | USACE-Omaha |
| Glendive GT (GT1) | Dawson | Operational | 40.7 MW | Gas | Montana-Dakota Utilities Co |
| Spion Kop Wind Farm (SKW25) | Judith Basin | Operational | 40 MW | Wind | NorthWestern Energy (MT wind/thermal) |
| Fort Peck (4) | McCone | Operational | 40 MW | Hydro | USACE-Omaha |
| Fort Peck (5) | McCone | Operational | 40 MW | Hydro | USACE-Omaha |
| Cochrane (COC2) | Cascade | Operational | 32 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Morony (MOR1) | Cascade | Operational | 31.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Morony (MOR2) | Cascade | Operational | 31.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Diamond Willow Wind Facility (DIAW) | Fallon | Operational | 30 MW | Wind | Montana-Dakota Utilities Co |
| Cochrane (COC1) | Cascade | Operational | 28.4 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Greenfield Wind - MT (1) | Teton | Operational | 25 MW | Wind | Greenbacker Renewable Energy Corporation |
| Big Timber Wind Farm (BT-MT) | Sweet Grass | Operational | 25 MW | Wind | RWE Clean Energy |
| Miles City GT (1) | Custer | Operational | 23.3 MW | Gas | Montana-Dakota Utilities Co |
| Canyon Ferry (1) | Lewis and Clark | Operational | 19.2 MW | Hydro | U S Bureau of Reclamation |
| Canyon Ferry (3) | Lewis and Clark | Operational | 19.2 MW | Hydro | U S Bureau of Reclamation |
| Fort Peck (2) | McCone | Operational | 17.3 MW | Hydro | USACE-Omaha |
| Canyon Ferry (2) | Lewis and Clark | Operational | 16.6 MW | Hydro | U S Bureau of Reclamation |
| Holter (HOL1) | Cascade | Operational | 15 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Holter (HOL2) | Cascade | Operational | 15 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Holter (HOL3) | Cascade | Operational | 15 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Yellowstone County Generating Station (YGS01) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS02) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS03) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS04) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS05) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS06) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS07) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS08) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS09) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS10) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS11) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS12) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS13) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS14) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS15) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS16) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS17) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Yellowstone County Generating Station (YGS18) | Yellowstone | Operational | 11.5 MW | Gas | NorthWestern Energy (MT wind/thermal) |
| Musselshell Wind Project (MS01) | Wheatland | Operational | 10 MW | Wind | Musselshell Wind Project LLC |
| Musselshell Wind Project Two LLC (MS02) | Wheatland | Operational | 10 MW | Wind | Musselshell Wind Project Two LLC |
| Fairfield Wind (T 1-6) | Teton | Operational | 10 MW | Wind | Greenbacker Renewable Energy Corporation |
| Broadwater Power Project (GEN1) | Broadwater | Operational | 9.7 MW | Hydro | Montana Dept-Natural Res&Consv |
| Two Dot Wind Farm (1) | Wheatland | Operational | 9.7 MW | Wind | NorthWestern Energy (MT wind/thermal) |
| Holter (HOL4) | Cascade | Operational | 9.6 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Gordon Butte Wind LLC (GBW) | Meagher | Operational | 9.6 MW | Wind | Gordon Butte Wind LLC |
| Lewis & Clark (2) | Richland | Operational | 9.3 MW | Gas | Montana-Dakota Utilities Co |
| Lewis & Clark (3) | Richland | Operational | 9.3 MW | Gas | Montana-Dakota Utilities Co |
| Ryan (RYA1) | Cascade | Operational | 9.2 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Ryan (RYA2) | Cascade | Operational | 9.2 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Ryan (RYA3) | Cascade | Operational | 9.2 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Ryan (RYA4) | Cascade | Operational | 9.2 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Ryan (RYA5) | Cascade | Operational | 9.2 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Ryan (RYA6) | Cascade | Operational | 9.2 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Black Eagle (BLA1) | Cascade | Operational | 9 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Black Eagle (BLA3) | Cascade | Operational | 9 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Horseshoe Bend Wind Park (HBWP) | Cascade | Operational | 9 MW | Wind | Cycle Holdings, LLC |
| Black Eagle (BLA2) | Cascade | Operational | 8.7 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Turnbull Hydro (2) | Teton | Operational | 7.7 MW | Hydro | Turnbull Hydro LLC |
| Tiber Dam Hydroelectric Plant (HY1) | Liberty | Operational | 7.5 MW | Hydro | Tiber Montana LLC |
| OREG 1 Inc (CS10) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 1 Inc (CS11) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 1 Inc (CS7) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 1 Inc (CS9) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 2 Inc (CS12) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 2 Inc (CS3) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 2 Inc (CS5) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| OREG 2 Inc (CS8) | Roosevelt | Operational | 7.5 MW | Other | Ormat Nevada Inc |
| Thompson Falls (TF1) | Sanders | Operational | 7 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Thompson Falls (TF2) | Sanders | Operational | 7 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Thompson Falls (TF3) | Sanders | Operational | 7 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Thompson Falls (TF5) | Sanders | Operational | 7 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Thompson Falls (TF6) | Sanders | Operational | 7 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Basin Creek Plant (1) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (2) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (3) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (4) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (5) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (6) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (7) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (8) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Basin Creek Plant (9) | Silver Bow | Operational | 6.1 MW | Gas | Basin Creek Power Services LLC |
| Mystic (MYS1) | Stillwater | Operational | 6 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Mystic (MYS2) | Stillwater | Operational | 6 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Thompson Falls (TF4) | Sanders | Operational | 6 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Turnbull Hydro (1) | Teton | Operational | 5.3 MW | Hydro | Turnbull Hydro LLC |
| Madison Dam (MAD5) | Madison | Operational | 4.1 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Madison Dam (MAD6) | Madison | Operational | 4.1 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Madison Dam (MAD7) | Madison | Operational | 4.1 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Madison Dam (MAD8) | Madison | Operational | 4.1 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU10) | Lewis and Clark | Operational | 3.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU11) | Lewis and Clark | Operational | 3.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU7) | Lewis and Clark | Operational | 3.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU8) | Lewis and Clark | Operational | 3.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU12) | Lewis and Clark | Planned | 3.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU9) | Lewis and Clark | Planned | 3.5 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Hauser (HAU6) | Lewis and Clark | Operational | 3 MW | Hydro | NorthWestern Energy (MT Hydro) |
| South Mills Solar, LLC (SMSMT) | Big Horn | Operational | 3 MW | Solar | Adapture Renewables, Inc. |
| Green Meadow Solar, LLC (GMSMT) | Lewis and Clark | Operational | 3 MW | Solar | Adapture Renewables, Inc. |
| Great Divide Solar, LLC (GDSMT) | Lewis and Clark | Operational | 3 MW | Solar | Adapture Renewables, Inc. |
| Black Eagle Solar, LLC (BESMT) | Cascade | Operational | 3 MW | Solar | Adapture Renewables, Inc. |
| Magpie Solar, LLC (MSMT) | Golden Valley | Operational | 3 MW | Solar | Adapture Renewables, Inc. |
| Hauser (HAU3) | Lewis and Clark | Operational | 2.8 MW | Hydro | NorthWestern Energy (MT Hydro) |
| Stoltze CoGen1 (STL2) | Flathead | Operational | 2.8 MW | Biomass | F H Stoltze Land & Lumber Co |
| Gordon Butte Wind LLC (DAW) | Meagher | Operational | 2.7 MW | Wind | Gordon Butte Wind LLC |
| Gordon Butte Wind LLC (OSR) | Meagher | Operational | 2.7 MW | Wind | Gordon Butte Wind LLC |
| Gordon Butte Wind LLC (SOR) | Meagher | Operational | 2.7 MW | Wind | Gordon Butte Wind LLC |
| South Dry Creek Hydro (1) | Carbon | Operational | 2 MW | Hydro | Hydrodynamics Inc |
| Flint Creek Hydroelectric LLC (GEN1) | Granite | Operational | 2 MW | Hydro | Hydrodynamics Inc |
| River Bend Solar, LLC (MT) (RBSMT) | Stillwater | Operational | 2 MW | Solar | Adapture Renewables, Inc. |
| GCC Trident Solar Project (GCC1) | Gallatin | Operational | 2 MW | Solar | GCC Trident LLC |
| GCC Trident Solar Project (GCC2) | Gallatin | Operational | 2 MW | Solar | GCC Trident LLC |
| Two Dot Wind Broadview East LLC (CHL2) | Yellowstone | Operational | 1.8 MW | Wind | Two Dot Wind Broadview East LLC |
| Big Fork (1) | Flathead | Operational | 1.7 MW | Hydro | PacifiCorp |
| Big Fork (2) | Flathead | Operational | 1.7 MW | Hydro | PacifiCorp |
| Phillips 66 Billings Refinery (3701) | Yellowstone | Operational | 1.6 MW | Gas | Phillips 66 Billings Refinery |
| Flathead Landfill to Gas Energy Facility (LFGE1) | Flathead | Operational | 1.6 MW | Landfill, Gas | Flathead Electric Coop Inc |
| Flathead Landfill to Gas Energy Facility (LFGE2) | Flathead | Operational | 1.6 MW | Landfill, Gas | Flathead Electric Coop Inc |
| Western Sugar Cooperative - Billings (1) | Yellowstone | Operational | 1.5 MW | Coal | Western Sugar Cooperative - Billings |
| Big Fork (3) | Flathead | Operational | 0.7 MW | Hydro | PacifiCorp |