Green Bay greenlights 800 MWh battery storage project in key Midwest market
City of Green Bay Plan Commission has approved the city’s first utility-scale battery energy storage system (BESS), marking another milestone in Wisconsin’s growing energy storage portfolio.
The 200 MW/800 MWh project, developed by Tenaska in partnership with Copenhagen Infrastructure Partners (CIP), represents a $300 million investment that will strengthen grid reliability in the region. The facility will be owned and operated by Tern Energy Storage, a CIP subsidiary.
The BESS facility will be constructed on an 8.1-acre parcel within a larger 20-acre industrial site at 2020 North Quincy Street. The installation will include approximately 450 battery enclosures, 112 transformers, and substation, and be helpful for the regional grid.
The project’s design will adhere to the National Fire Protection Association (NFPA) 855 Standard, widely recognized as the industry’s leading safety protocol for energy storage installations.
This project adds to CIP’s expanding presence in Wisconsin’s energy storage market, where the firm is currently developing 550 MW of BESS projects. CIP currently manages approximately $20 billion in assets. Tenaska has developed over 22,000 MW of generation capacity.
Construction is scheduled to commence in Q4 2025.
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