We Energies and Wisconsin Public Service to purchase Koshkonong Solar Energy Center in Wisconsin

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We Energies and Wisconsin Public Service, the largest utilities in WEC Energy Group, are proposing to own the Koshkonong Solar Energy Center, a planned 465-megawatt (MW) solar and battery storage project in south-central Wisconsin.

The Koshkonong Solar Energy Center will feature 300 MW of solar generation and 165 MW of battery storage, which can store solar-generated power and provide customers with "sunshine after sunset." The project is planned to be built in Dane County, Wisconsin, southeast of Madison. The total investment is expected to be US$649 million.

The companies filed the Koshkonong solar and battery storage proposal with the Public Service Commission of Wisconsin. We Energies and WPS would own 90 percent of the project. Madison Gas and Electric would own the other 10 percent.

The project is being developed by Invenergy. If approved, construction is expected to begin in late 2022 with commercial operation in 2024.

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