Where is Assembly Solar III?

In Shiawassee County, Michigan (MI). 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 Assembly Solar III?

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

Who owns Assembly Solar III?

EIA-860M names Assembly Solar III, LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Assembly Solar III LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Assembly Solar III, LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Assembly Solar III LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Assembly Solar III still running?

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

Assembly Solar III

Assembly Solar III is a 79 MW solar farm in Shiawassee County, Michigan, operated by Assembly Solar III, LLC. EIA-860M lists 1 generating unit here, inside MISO. Its unit entered service in 2022.

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: 79 MW; 79 MW net summer
Generating units: 1
In service: 2022
EIA plant ID: 64196

Where it is

Loading map…

County: Shiawassee County, Michigan
Coordinates: 43.0227, -83.9427
Balancing authority: MISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Assembly Solar III, LLC
Primary energy source: Solar
Technologies: Solar Photovoltaic
Status: Operating

Every plant Assembly Solar III, LLC reports to EIA →

Assembly Solar III: FAQ

Where is Assembly Solar III?: In Shiawassee County, Michigan (MI). 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 Assembly Solar III?: 79 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Assembly Solar III?: EIA-860M names Assembly Solar III, LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Assembly Solar III LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Assembly Solar III, LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Assembly Solar III LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Assembly Solar III still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.