Black Mountain Energy Storage has won approval for a battery storage project which will be the biggest in the US state of Wisconsin so far.

Alliant Energy’s plans to build two large-scale battery storage projects to pair with solar PV in Wisconsin have been approved by regulators.

Utility Alliant Energy will deploy a 99MW/396MWh battery energy storage system (BESS) at a coal plant which it will retire in 2025.

Wisconsin utility Alliant Energy has announced plans to deploy two projects totalling 175MW/700MWh of battery energy storage in the midwestern state.

Wisconsin’s Public Service Commission has approved Invenergy 300MW solar farm, to be paired with a 165MW battery energy storage system.

Wisconsin investor-owned utilities Madison Gas and Electric (MGE) and WEC Energy have received regulatory approval to buy a 200MW solar and 110MW battery energy storage system (BESS) in Kenosha County.

Two subsidiaries of Wisconsin-based electric and gas company WEC Energy Group have put forward plans for their second large-scale solar-plus-storage project in as many months.

The US state of Wisconsin’s first large-scale solar farms only went online in late 2020, but electric and gas delivery holding company WEC Energy Group has just proposed plans for a 310MW solar power plant with 110MW of battery storage.