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Montana Solar, Wind and Batteries
Utility-scale renewable and storage capacity in Montana, as of August 2026 (EIA-860M). Rooftop solar is not included.
- Solar
- 181 MW
- 9 plants
- Wind
- 2.1 GW
- 23 plants
- Hydroelectric
- 2.7 GW
- 23 plants
Capacity by type
Share of all 7.7 GW of operating capacity in Montana
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| Type | Capacity | Plants | Share |
|---|---|---|---|
| Solar | 181 MW | 9 | 2.4% |
| Wind | 2.1 GW | 23 | 28.0% |
| Hydroelectric | 2.7 GW | 23 | 35.0% |
| Biomass | 6.0 MW | 2 | 0.1% |
Largest solar farms
Operating capacity (AC)
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| # | Plant | Capacity |
|---|---|---|
| 1 | MtsunYellowstone | 80.0 MW |
| 2 | Apex SolarBeaverhead | 80.0 MW |
| 3 | GCC Trident Solar ProjectGallatin | 4.0 MW |
| 4 | South Mills Solar, LLCBig Horn | 3.0 MW |
| 5 | Green Meadow Solar, LLCLewis and Clark | 3.0 MW |
| 6 | Great Divide Solar, LLCLewis and Clark | 3.0 MW |
| 7 | Black Eagle Solar, LLCCascade | 3.0 MW |
| 8 | Magpie Solar, LLCGolden Valley | 3.0 MW |
| 9 | River Bend Solar, LLC (MT)Stillwater | 2.0 MW |
Largest wind farms
Operating capacity
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| # | Plant | Capacity |
|---|---|---|
| 1 | Clearwater Wind IRosebud | 366 MW |
| 2 | Beaver Creek Wind FacilityStillwater | 248 MW |
| 3 | Pryor Mountain WindCarbon | 240 MW |
| 4 | Clearwater Wind EastCuster | 208 MW |
| 5 | NaturEner Rim Rock EnergyToole | 189 MW |
| 6 | Judith Gap Wind Energy CenterWheatland | 135 MW |
| 7 | NaturEner Glacier Wind Energy 1Toole | 107 MW |
| 8 | NaturEner Glacier Wind Energy 2Toole | 104 MW |
| 9 | Clearwater Wind IIRosebud | 103 MW |
| 10 | Clearwater Wind IIIRosebud | 100 MW |
| 11 | South Peak WindJudith Basin | 80.0 MW |
| 12 | Stillwater Wind, LLCStillwater | 79.7 MW |
| 13 | Spion Kop Wind FarmJudith Basin | 40.0 MW |
| 14 | Diamond Willow Wind FacilityFallon | 30.0 MW |
| 15 | Greenfield Wind - MTTeton | 25.0 MW |
New projects
Solar, wind and battery plants with generators that started in 2025 or 2026
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| Plant | Type | Added | Year |
|---|---|---|---|
| Beaver Creek Wind Facility | Wind | 248 MW | 2025 |
| GCC Trident Solar Project | Solar | 2.0 MW | 2025 |
Planned capacity
Planned or under construction, by expected year
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| Year | Solar | Wind | Batteries | All planned |
|---|---|---|---|---|
| 2027 | 200 MW | 0.0 MW | 250 MW | 450 MW |
| 2028 | 0.0 MW | 0.0 MW | 0.0 MW | 3.5 MW |
| 2029 | 0.0 MW | 80.0 MW | 0.0 MW | 83.5 MW |
Planned dates come from developers and often change. Capacity counts generators of 1 MW or more; smaller community solar and rooftop systems are not included.
Frequently asked questions
- How much solar power does Montana have?
- Montana has 181 MW of operating utility-scale solar at 9 plants. The largest is Mtsun at 80.0 MW.
- Does Montana have wind farms?
- Yes. Montana has 2.1 GW of wind capacity at 23 plants.
- How much of Montana's electricity comes from renewable sources?
- Renewable plants produced 50.6% of the electricity generated in Montana in 2023, according to EPA eGRID.
Source: U.S. Energy Information Administration, Form EIA-860M; U.S. EPA eGRID · Data for August 2026