Madison utility, Wisconsin partners seeking 46.5-MW share of solar and battery storage project

Photo courtesy of Invenergy LLC.

A Wisconsin utility and its sister companies are partnering to guy a solar and battery storage facility to be developed in the state.

Madison Gas and Electric (MGE), We Energies and Wisconsin Public Service are seeking state regulatory approval to acquire the Koshkonong Solar Energy Center. MGE’s acquired part of the facility in Dane County will include 30 MW of solar and 16.5 MW of battery storage capacity.

If approved by the Public Service Commission of Wisconsin, the Koshkonong solar-storage project would be developed and constructed by Invenergy. Overall, the 4,500-acre project would have 300-MW in solar array and 165-MW battery storage system once completed in 2024.

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Madison Gas and Electric, We Energies and Wisconsin Public Service are all part of the parent WEC Energy Group.

“We are transforming our grid for the future in a number of different ways, one of which is growing our use of cost-effective, renewable generation to decarbonize our energy supply. The Koshkonong Solar Energy Center and other recently announced renewable projects will help us manage long-term costs to customers,” explained Jeff Keebler, MGE Chairman, President and CEO. “There is no fuel cost with solar and wind energy, and battery storage will help us manage costs and maintain our top-ranked electric reliability as we transition to greater use of renewables.”

Earlier this year, MGE announced plans to acquire stakes in three renewable energy projects totaling more than 50 MW in wind and solar power capacity. A deal to buy a share of the Darien Solar Energy Center also includes 7.5 MW in battery storage, according to reports.

The Madison-based utility is planning to reduce carbon emissions 65 percent by 2030.

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Solar power and energy storage are key parts of POWERGEN International, happening Jan. 26-28 in Dallas, Texas. The POWERGEN Call for Speakers is now open and seeking content for tracks such as Decarbonization, Digitalization, Energy Storage Breakthroughs, the Future of Electricity, Hydrogen: What’s New, Optimizing Plant Performance, the New Energy Mix (on-site power) and Trends in Conventional Power. Click here to see more and submit a session idea.

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