Where is Groton Generation Station?

In Brown County, South Dakota (SD). 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 Groton Generation Station?

216 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns Groton Generation Station?

EIA-860M names Basin Electric Power Coop 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 Groton Generation Station LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Basin Electric Power Coop 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 "Groton Generation Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Groton Generation Station still running?

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

Groton Generation Station

Groton Generation Station is a 216 MW natural gas power plant in Brown County, South Dakota, operated by Basin Electric Power Coop. EIA-860M lists 2 generating units here, inside SPP. Its units entered service between 2006 and 2008.

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: 216.4 MW; 170 MW net summer
Generating units: 2
In service: 2006–2008
EIA plant ID: 56238

Where it is

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County: Brown County, South Dakota
Coordinates: 45.3735, -98.0987
Balancing authority: SWPP
Sector: Electric Utility

Units, technology and status

Operator of record: Basin Electric Power Coop
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Basin Electric Power Coop reports to EIA →

Groton Generation Station: FAQ

Where is Groton Generation Station?: In Brown County, South Dakota (SD). 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 Groton Generation Station?: 216 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Groton Generation Station?: EIA-860M names Basin Electric Power Coop 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 Groton Generation Station LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Basin Electric Power Coop 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 "Groton Generation Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Groton Generation Station still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.