Alliant seeks PSC approval for Columbia Energy Storage Project

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Alliant Energy announced it filed a landmark project application with the Public Service Commission of Wisconsin (PSC). The application seeks approval for the Columbia Energy Storage Project, a first-of-its-kind energy storage system that aims to usher in a new wave of long-duration energy storage solutions in the country.

The Columbia Energy Storage Project uses a new technology designed by Energy Dome. The system’s features will boost grid stability, improve resilience, and deliver enough electricity to power approximately 18,000 Wisconsin homes for 10 hours on a single charge.

Alliant Energy filed the project application with the PSC after securing a competitive cooperative agreement award from the U.S. Department of Energy’s Office of Clean Energy Demonstrations. Development of the Columbia Energy Storage Project is led by Alliant Energy in partnership with WEC Energy Group, Madison Gas and Electric, Shell Global Solutions US, Electric Power Research Institute, UW–Madison, and Madison College.

Pending approval, crews will build the energy storage system south of Portage in the town of Pacific, near the current Columbia Energy Center. For more information on Alliant Energy’s energy storage projects, click here.

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