
	Alliant Energy Corporation is a public utility holding company headquartered in Madison, Wisconsin. Alliant Energy&#39;s two regulated utilities include Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL). IPL started in 1925 as the Interstate Power Company (IPC) and which was a consolidation of several small utility companies scattered across northern Iowa and southern Minnesota. IPC merged or consolidated with several other Iowa based utilities before forming IPL, which was later merged with WPL.
