Day County Wind LLC
Day County Wind LLC is a 99 MW wind farm in Day County, South Dakota, operated by Day County Wind LLC. EIA-860M lists 1 generating unit here, inside SPP. Its unit entered service in 2010.
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
- 99 MW
- 99 MW net summer
- Generating units
- 1
- In service
- 2010
- EIA plant ID
- 57194
Where it is
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- County
- Day County, South Dakota
- Coordinates
- 45.215, -97.9056
- Balancing authority
- SWPP
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Day County Wind LLC
- Primary energy source
- Wind
- Technologies
- Onshore Wind Turbine
- Status
- Operating
Day County Wind LLC: FAQ
- Where is Day County Wind LLC?
- In Day 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 Day County Wind LLC?
- 99 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Day County Wind LLC?
- EIA-860M names Day County Wind LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is Day County Wind LLC still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.