Where is Corkwood Solar (CSG)?

In Penobscot County, Maine (ME). 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 Corkwood Solar (CSG)?

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

Who owns Corkwood Solar (CSG)?

EIA-860M names NextGrid Corkwood, 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 Corkwood Solar (CSG) LLC?

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

Is Corkwood Solar (CSG) still running?

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

Corkwood Solar (CSG)

Corkwood Solar (CSG) is a 5 MW solar farm in Penobscot County, Maine, operated by NextGrid Corkwood, LLC. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 2023.

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: 4.6 MW; 4.6 MW net summer
Generating units: 1
In service: 2023
EIA plant ID: 67111

Where it is

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County: Penobscot County, Maine
Coordinates: 45.2581, -68.6665
Balancing authority: ISNE
Sector: IPP Non-CHP

Units, technology and status

Operator of record: NextGrid Corkwood, LLC
Primary energy source: Solar
Technologies: Solar Photovoltaic
Status: Operating

Every plant NextGrid Corkwood, LLC reports to EIA →

Corkwood Solar (CSG): FAQ

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