US utility company Alliant Energy has moved forward with a long-duration energy storage project based on carbon dioxide-based technology.

US utility Xcel Energy has revealed energy deployment plans for the Upper Midwest region, including 3.6GW of renewables and 600MW of energy storage by 2030.

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.

Madison Gas and Electric has purchased a solar and battery storage plant with combined capacity of 465MW with WEC Energy Group.

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.