Alliant Energy Corporation

Alliant Energy Corporation functions as a utility holding company, specializing in the provision of regulated electricity and natural gas services. Its operational structure is divided into three principal segments: Utility Electric Operations, Utility Gas Operations, and Utility Other.

Through its primary subsidiary, Interstate Power and Light Company (IPL), the corporation generates and distributes electricity, and manages the distribution and transportation of natural gas to retail customers throughout Iowa. IPL also markets electricity to wholesale buyers across Minnesota, Illinois, and Iowa, and generates and supplies steam in Cedar Rapids, Iowa.

Similarly, its other subsidiary, Wisconsin Power and Light Company (WPL), is responsible for electricity generation and distribution, alongside natural gas distribution and transport, for retail clients within Wisconsin. WPL additionally sells wholesale electricity in Wisconsin.