John Larsen

John Larsen serves as Chairman, President, and CEO of Alliant Energy, a regulated utility holding company providing electric and natural gas service to over one million customers in Iowa and Wisconsin through its operating subsidiaries Interstate Power and Light (IPL) and Wisconsin Power and Light (WPL). Despite its relatively modest size, Alliant has emerged as one of the most aggressive clean energy developers among US regulated utilities. Under Larsen's leadership, Alliant has invested billions in wind farms and solar installations, dramatically reducing its coal generation fleet and targeting net-zero carbon emissions. The company's clean energy transition has been supported by favorable regulatory relationships in both Iowa and Wisconsin, where regulators have approved large-scale wind and solar investments with timely cost recovery. This regulatory constructiveness is a key competitive advantage. His strategic decisions revolve around the pace of renewable energy capital deployment, grid modernization investment, rate case strategy in both regulatory jurisdictions, customer affordability considerations (balancing clean energy investment with rate impacts), and potential data center and large load growth in the Midwest. Alliant's stock is valued as a premium regulated utility offering above-average rate base growth from its clean energy transition program.