Alliant Energy to Acquire 100 MW Springfield Solar Development in Wisconsin

Announcement extends Alliant Energy’s commitment to advancing a clean energy future and Wisconsin communities

Minneapolis, MN  – National Grid Renewables, which includes the renewables development company formerly known as Geronimo Energy, announced today the sale of Springfield Solar in Dodge County, Wisconsin to Alliant Energy. National Grid Renewables will continue development activities until regulatory approvals and other contractual commitments are complete, at which time Alliant Energy will acquire Springfield Solar.

Springfield Solar is planned as a 100 megawatt (MW) solar energy project and is anticipated to power the equivalent of approximately 23,500 Wisconsin homes annually. The project is another part of Alliant Energy’s plan to build 1,000 MW of solar projects in Wisconsin by 2023. The 100 MW Springfield Solar is estimated to have a footprint of 800 acres in the Town of Lomira and Village of Lomira in Dodge County, WI. Construction is expected to get underway in 2022, with anticipated completion in late 2023. The project will bring positive economic benefits in the form of new tax revenue, local spending, and job creation to both local and state communities.

Alliant Energy serves Dodge County residents as a local electric utility and values delivering reliable services and developing strong community partnerships.

Regarding Springfield Solar, Ben Lipari, Director of Resource Development at Alliant Energy states, “We are excited to add the Springfield Solar project to our renewable energy portfolio. Guided by our purpose-driven strategy, to serve customers and build stronger communities, this project represents continued investment where we have long-standing partnerships with local businesses and community leaders. We are proud to be delivering cleaner energy while investing in the local communities we are so privileged to serve.”

“National Grid Renewables is proud to partner with Alliant Energy on a second Wisconsin solar project,” stated David Reamer, Head of Development, U.S. Onshore Renewables for National Grid Renewables. “Springfield Solar offers valuable benefits to the Dodge County community, including the creation of new tax revenue and jobs, as well as a charitable fund estimated at $400,000 over the first 20 years of project operation.”

About National Grid Renewables

National Grid Renewables, part of the competitive, unregulated National Grid Ventures division of National Grid (NYSE: NGG), develops, owns and operates large-scale renewable energy assets across the United States, including solar, wind and battery storage. As a farmer-friendly and community-focused business, National Grid Renewables develops projects for corporations and utilities that seek to repower America’s electricity grid by reigniting local economies and reinvesting in a sustainable, clean energy future.

National Grid Renewables has a robust development pipeline of wind, solar and battery storage projects in various stages of development throughout the United States, as well as geographically diverse operational assets across the country. It supports National Grid’s vision of being at the heart of a clean, fair, and affordable energy future for all. Please visit www.nationalgridrenewables.com to learn more.