Alliant Energy (NASDAQ:LNT) is a publicly traded utility holding company headquartered in Madison, Wisconsin, serving approximately one million electric and natural gas customers across Iowa and Wisconsin. The company operates through two primary subsidiaries: Interstate Power and Light Company, which provides electric and gas services in Iowa, and Wisconsin Power and Light Company, which serves customers in Wisconsin. Alliant Energy’s core business involves the generation, transmission, distribution, and sale of electricity, as well as the distribution of natural gas, with a focus on reliable service and customer satisfaction.
Founded through a series of mergers and reorganizations dating back to the early 20th century, Alliant Energy has evolved into a modern energy provider committed to innovation and sustainability. The company’s generation portfolio includes a mix of coal, natural gas, nuclear, hydroelectric, wind, and solar resources. In recent years, Alliant Energy has accelerated investment in renewable energy projects, adding wind farms in Iowa and solar facilities in Wisconsin, while also pursuing energy efficiency programs designed to reduce customer energy use and support statewide clean energy goals.
Alliant Energy places significant emphasis on grid modernization and technological upgrades. The company has implemented advanced metering infrastructure (AMI) to enhance outage detection, billing accuracy, and customer engagement tools, and continues to strengthen its transmission and distribution networks to improve resilience against extreme weather events. Through community solar initiatives and electric vehicle-charging infrastructure investments, the company aims to expand sustainable energy solutions for both residential and commercial customers.
Leadership at Alliant Energy is anchored by Chairman, President and Chief Executive Officer John C. Larsen, who has guided the company’s strategic vision toward decarbonization and long-term value creation. Under Larsen’s stewardship, Alliant Energy has outlined a clear roadmap to reduce carbon emissions by 80% from 2005 levels by 2050. The executive team also prioritizes safety, environmental stewardship, and community engagement, fostering partnerships with local stakeholders to support economic development and deliver reliable, affordable energy services to the regions it serves.
