Alliant Energy Corporation has begun construction on the Whispering Willow North Battery Energy Storage System $(BESS)$ project in Franklin County, Iowa. The 75-megawatt facility will be built on a 9-acre site near Latimer, just south of the company's existing substation. The project involves installing electrical conduits, concrete foundations, battery containers, and related equipment. Once operational in late 2026, the BESS will store excess energy and release it to the grid as needed, supporting grid reliability and helping to manage customer costs. This initiative is part of Alliant Energy's broader Energy Blueprint, aimed at modernizing the company's energy infrastructure and expanding capacity with responsible solutions.