Crane and Sandhill Battery Energy Storage Projects

Crane Energy Storage LLC and Sandhill Energy Storage LLC propose to construct and operate the Crane and Sandhill projects, two independent BESS’s, each with a maximum capacity of up to 200 MW alternating current (AC) and a storage capacity of approximately 800 megawatt-hours (MWh) of electricity. The two projects will be located on adjacent parcels in Kalmart Township, Olmsted County, Minnesota. The Crane project will be on a site of approximately 36.3 acres and the Sandhill project will be on a site of approximately 42.7 acres.

In addition to the battery energy storage enclosures, the facilities will also include their respective inverters, transformers, stormwater drainage basins, storage and parking areas, perimeter fencing, emergency management system, battery management system, a collector substation, underground electrical collection and communication lines, and a gen-tie line. These facilities will be connected to the electric grid through a 161 kilovolt (kV) gen-tie line of approximately 700 feet between the shared project substation and the Bryon Substation owned and operated by the Southern Minnesota Municipal Power Agency (SMMPA).

The applicants anticipate that construction for the Crane project will begin first quarter 2027 and construction for the Sandhill project will begin third quarter 2027. The Crane project and the Sandhill Project are being marketed separately to potential off-takers and may/or may not be constructed within the same twelve-month period.