top of page

Project Details

The Midwater Battery Project will be sited on 10-20 acres of privately owned land adjacent to the Glenworth Substation location off Minnesota Hwy 65. The site will not be visible from any occupied dwellings due to the existing natural vegetative screening to the North and East.

Project Documents

Click any of the buttons below to view a pdf of project documents.

Spearmint_Midwater Project Map_2.20.26_DRAFT.png

Key Dates for Environmental Assessment

Environmental Assessment (EA) Issued

February 20, 2026

In Person Public Hearing - Glenville High School

March 3, 2026 at 6 PM CST (Doors Open at 5 PM)

Virtual Public Hearing

March 4, 2026 at 6 PM

Close of Public Comment Period

March 16, 2026

Administrative Law Judge Report Issued

May 13, 2026

Project Timeline

Spring
2026

Environmental Assessment review

Summer
2026

PUC Decision on Site Permit

Fall
2026

Interconnection Agreement

Winter
2027-28

Construction

Spring
2028

Operational COD

Facility construction and mobilization is driven by MISO's Ability to meet their officially posted deadlines. Dates are estimates only.

bottom of page