Where is South Mills Solar, LLC?

In Big Horn County, Montana (MT). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is South Mills Solar, LLC?

3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

Who owns South Mills Solar, LLC?

EIA-860M names Adapture Renewables, Inc. as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is South Mills Solar, LLC still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

South Mills Solar, LLC

South Mills Solar, LLC is a 3 MW solar farm in Big Horn County, Montana, operated by Adapture Renewables, Inc.. EIA-860M lists 1 generating unit here. Its unit entered service in 2017.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 3 MW; 3 MW net summer
Generating units: 1
In service: 2017
EIA plant ID: 61290

Where it is

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County: Big Horn County, Montana
Coordinates: 45.7301, -107.6326
Balancing authority: NWMT
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Adapture Renewables, Inc.
Primary energy source: Solar
Technologies: Solar Photovoltaic
Status: Operating

Every plant Adapture Renewables, Inc. reports to EIA →

South Mills Solar, LLC: FAQ

Where is South Mills Solar, LLC?: In Big Horn County, Montana (MT). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is South Mills Solar, LLC?: 3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns South Mills Solar, LLC?: EIA-860M names Adapture Renewables, Inc. as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is South Mills Solar, LLC still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.