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

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

EIA-860M names Generate Capital 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 Jeffery LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Generate Capital 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 "Jeffery LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Jeffery still running?

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

Jeffery

Jeffery is a 5 MW solar farm in Kankakee County, Illinois, operated by Generate Capital. EIA-860M lists 1 generating unit here, inside PJM. Its unit entered service in 2025.

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: 5 MW; 5 MW net summer
Generating units: 1
In service: 2025
EIA plant ID: 69401

Where it is

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County: Kankakee County, Illinois
Coordinates: 41.0921, -87.9844
Balancing authority: PJM
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Generate Capital
Primary energy source: Solar
Technologies: Solar Photovoltaic
Status: Operating

Every plant Generate Capital reports to EIA →

Jeffery: FAQ

Where is Jeffery?: In Kankakee County, Illinois (IL). 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 Jeffery?: 5 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Jeffery?: EIA-860M names Generate Capital 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 Jeffery LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Generate Capital 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 "Jeffery LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Jeffery still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.