How many planned natural gas power plants are in South Dakota?

There are 14 planned natural gas power plants in South Dakota.

What is the total planned natural gas capacity in South Dakota?

The total planned natural gas capacity in South Dakota is 1,559 MW.

What is the largest planned natural gas power plant in South Dakota?

The largest planned natural gas power plant in South Dakota is Astoria 345kV substation at 1,144 MW, located in Deuel, South Dakota.

How many developers have planned natural gas power plants in South Dakota?

There are 1 unique developers with planned natural gas power plants in South Dakota.

Planned Natural Gas Power Plants in South Dakota

Explore the largest natural gas power plants expected to come online in South Dakota and see all proposed natural gas projects on a map.

Last updated: September 2026

On this page, you can explore our database of planned natural gas power plants in South Dakota. Each month, we track projects in development and update our list of the largest natural gas power plants expected to come online in South Dakota.

As of September 2026, there are 14 natural gas power plants in development in South Dakota, according to Cleanview's project tracker. Their total planned capacity is 1,559 MW. See also: operating natural gas power plants in South Dakota→

Planned Projects

Planned Capacity

1,559 MW

Planned South Dakota Natural Gas Map

Map of planned natural gas power plants in South Dakota. Marker size reflects planned capacity.

Largest Planned Natural Gas Power Plants in South Dakota

Astoria 345kV substation

1,144 MW

Expected Online: May 2030

Location: Deuel, South Dakota

Aberdeen Thermal

138 MW

Expected Online: August 2030

Location: Aberdeen, South Dakota

Developer: NorthWestern Energy

Toronto Power Plant

36 MW

Expected Online: December 2029

Location: Deuel, South Dakota

Toronto Power Plant

36 MW

Expected Online: December 2029

Location: Deuel, South Dakota

Toronto Power Plant

36 MW

Expected Online: December 2029

Location: Deuel, South Dakota

Toronto Power Plant

36 MW

Expected Online: December 2029

Location: Deuel, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Natural Gas Power Plants Coming Online Soon in South Dakota

Aberdeen CT

16 MW

Expected Online: October 2026

Location: Brown, South Dakota

Aberdeen CT

16 MW

Expected Online: October 2026

Location: Brown, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Lange Generating Station

17 MW

Expected Online: December 2026

Location: Pennington, South Dakota

Frequently Asked Questions

How many planned natural gas power plants are in South Dakota?: There are 14 planned natural gas power plants in South Dakota.
What is the total planned natural gas capacity in South Dakota?: The total planned natural gas capacity in South Dakota is 1,559 MW.
What is the largest planned natural gas power plant in South Dakota?: The largest planned natural gas power plant in South Dakota is Astoria 345kV substation at 1,144 MW, located in Deuel, South Dakota.
How many developers have planned natural gas power plants in South Dakota?: There are 1 unique developers with planned natural gas power plants in South Dakota.

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