How many planned battery storage projects are in South Dakota?

There are 3 planned battery storage projects in South Dakota.

What is the total planned battery storage capacity in South Dakota?

The total planned battery storage capacity in South Dakota is 700 MW.

What is the largest planned battery storage project in South Dakota?

The largest planned battery storage project in South Dakota is Big Stone South 345 kV substation at 250 MW, located in Grant, South Dakota.

Planned Battery Storage Projects in South Dakota

Explore the largest battery storage projects expected to come online in South Dakota and see all proposed battery storage projects on a map.

Last updated: May 2026

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

As of May 2026, there are 3 battery storage projects in development in South Dakota, according to Cleanview's project tracker. Their total planned capacity is 700 MW. See also: operating battery storage projects in South Dakota→

Planned Projects

Planned Capacity

700 MW

Unique Developers

Largest Planned Battery Storage Projects in South Dakota

Big Stone South 345 kV substation

250 MW

Expected Online: June 2031

Location: Grant, South Dakota

Big Stone South 345 kV substation

250 MW

Expected Online: June 2031

Location: Grant, South Dakota

Browns Valley 230 kV Substation

200 MW

Expected Online: April 2025

Location: Roberts, South Dakota

Frequently Asked Questions

How many planned battery storage projects are in South Dakota?: There are 3 planned battery storage projects in South Dakota.
What is the total planned battery storage capacity in South Dakota?: The total planned battery storage capacity in South Dakota is 700 MW.
What is the largest planned battery storage project in South Dakota?: The largest planned battery storage project in South Dakota is Big Stone South 345 kV substation at 250 MW, located in Grant, South Dakota.

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