Solar farms in Montana
9 operating solar farms in Montana with 181 MW of solar capacity, largest first. From EIA-860M, August 2026.
Largest solar farms in Montana
| # | Plant | Solar MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | MTSUNYellowstone County | 80 | 149 | 21.3% |
| 2 | Apex SolarBeaverhead County | 80 | 165 | 23.5% |
| 3 | GCC Trident Solar ProjectGallatin County | 4.0 | 7.0 | – |
| 4 | South Mills Solar, LLCBig Horn County | 3.0 | 4.9 | 18.7% |
| 5 | Green Meadow Solar, LLCLewis and Clark County | 3.0 | 5.5 | 20.7% |
| 6 | Great Divide Solar, LLCLewis and Clark County | 3.0 | 5.8 | 22.0% |
| 7 | Black Eagle Solar, LLCCascade County | 3.0 | 4.9 | 18.7% |
| 8 | Magpie Solar, LLCGolden Valley County | 3.0 | 4.9 | 18.6% |
| 9 | River Bend Solar, LLC (MT)Stillwater County | 2.0 | 3.1 | 17.5% |
Projects where solar is the largest fuel or at least a fifth of nameplate capacity. MW is solar nameplate only; net generation covers the whole project. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources