Row of panels at Crawfish River Solar Project

Crawfish River Solar Project now complete

Wisconsin customers and communities benefit from investment in clean, reliable, cost-effective energy generation

MADISON, Wis. (Jan. 16, 2024) – Alliant Energy announced the successful completion of its Crawfish River Solar Project in the Jefferson County town of Jefferson. Construction on the project began in spring 2022 and employed over 400 workers at its peak. The 75-megawatt (MW) solar array consists of more than 200,000 solar panels and can produce enough energy to power approximately 20,000 homes annually.

“Placing the Crawfish River Solar Project into service is a major accomplishment that will benefit our customers for decades,” said Lee Hanson, assistant vice president of strategic projects at Alliant Energy. “This solar site represents our continued commitment to providing reliable, affordable and environmentally responsible energy solutions for the communities we serve. We appreciate the support and partnerships with local landowners, community leaders and energy advocates. Together, we are making significant strides toward a cleaner and brighter energy future."

The Crawfish River Solar Project represents a long-term reduction of traditional fossil fuels for energy generation and will contribute to a clean environment and clean energy future for Wisconsin and the Midwest. Native grasses and flowers underneath, between and around the solar panels prevent soil erosion, enhance groundwater filtration and create pollinator-friendly habitat. In addition to generating clean, reliable electricity for Alliant Energy customers, the company expects the town of Jefferson and Jefferson County will receive a combined $9 million in new shared revenue over the 30-year life of the project. 

The Crawfish River Solar Project is part of Alliant Energy’s Clean Energy Blueprint, a strategic roadmap to cost-effectively accelerate renewable energy and reduce carbon emissions. The company, already the largest owner and operator of solar generation in Wisconsin, expects to add 200 MW of additional solar capacity to the grid by mid-2024. The growth in sustainable energy generation combined with recently approved battery energy storage systems is a major step for Alliant Energy as it works toward its aspirational goal of achieving net-zero greenhouse gas emissions from utility operations by 2050.

Alliant Energy Corporation (NASDAQ: LNT) provides regulated energy service to 1 million electric and 425,000 natural gas customers across Iowa and Wisconsin. Alliant Energy's mission is to deliver energy solutions and exceptional service customers and communities count on – safely, efficiently and responsibly. Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL) are Alliant Energy's two public energy companies. Alliant Energy is a component of Bloomberg’s Gender-Equality Index and the S&P 500. For more information, visit and follow Alliant Energy on LinkedIn, FacebookInstagram and X.

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