How many solar farms are in South Dakota?

4, with 217 MW of nameplate capacity between them, spread over 4 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of South Dakota solar farms?

Yes — the map above. Each dot is one solar farm, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest solar farm in South Dakota?

Wild Springs, at 128 MW. The table is sorted largest first, so the rest follow it.

Is there a solar farm near me in South Dakota?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs South Dakota's solar farms?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in South Dakota is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. Solar photovoltaic and solar thermal, with and without storage. Utility-scale only: EIA-860M starts at 1 MW, so rooftop solar is not here. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Solar Farms in South Dakota

Every operating solar farm in South Dakota on EIA-860M for 2026-07: 4 plants, 4 generating units and 217 MW of nameplate capacity across 4 counties.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 4; 4 generating units
Nameplate capacity: 217 MW
Counties: 4
Grid operator: Mixed; no single ISO covers a majority

Map of solar farms in South Dakota

Every one of the 4 plants is drawn at the coordinate EIA files for it.

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Solar · 4

List of solar farms in South Dakota

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

solar farms in South Dakota

Wild SpringsSolar Photovoltaic	Geronimo Power	Pennington	128	1	2024	Operating
Fall River Solar, LLCSolar Photovoltaic	Greenbacker Renewable Energy Corporation	Fall River	80	1	2023	Operating
RE Solar, LLCSolar Photovoltaic	Redfield Energy, LLC	Spink	8.3	1	2024	Operating
Pierre SolarSolar Photovoltaic	Western Minnesota Mun Pwr Agny	Hughes	1	1	2016	Operating

Largest solar farms in South Dakota

1Wild SpringsPennington County, South Dakota128 MW
2Fall River Solar, LLCFall River County, South Dakota80 MW
3RE Solar, LLCSpink County, South Dakota8.3 MW
4Pierre SolarHughes County, South Dakota1 MW

Solar farms by county in South Dakota

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Pennington	1	128
Fall River	1	80
Spink	1	8.3
Hughes	1	1

Solar Farms in South Dakota: FAQ

How many solar farms are in South Dakota?: 4, with 217 MW of nameplate capacity between them, spread over 4 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of South Dakota solar farms?: Yes — the map above. Each dot is one solar farm, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest solar farm in South Dakota?: Wild Springs, at 128 MW. The table is sorted largest first, so the rest follow it.
Is there a solar farm near me in South Dakota?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs South Dakota's solar farms?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in South Dakota is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. Solar photovoltaic and solar thermal, with and without storage. Utility-scale only: EIA-860M starts at 1 MW, so rooftop solar is not here. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.