About Alliant Energy Corporation
Alliant Energy Corporation is a utility holding company that delivers regulated electric and natural gas services across the United States. Headquartered in Madison, Wisconsin, the company operates through two primary segments: IPL (Interstate Power and Light Company) and WPL (Wisconsin Power and Light Company).
Core Business Segments
- IPL Segment: Generates and distributes electricity, as well as transports natural gas to retail customers in Iowa. It also supplies wholesale electricity to markets in Minnesota, Illinois, and Iowa, and provides steam generation for select customers in Cedar Rapids, Iowa.
- WPL Segment: Focuses on electricity generation and distribution, along with natural gas transportation for retail customers in Wisconsin. Additionally, it serves wholesale electricity buyers within the state.
Customer Base
Alliant Energy serves a diverse range of customers, including:
- Retail sectors such as farming, agriculture, industrial manufacturing, chemicals, packaging, and food industries.
- Wholesale clients, including municipalities and rural electric cooperatives.
Additional Operations
Beyond utilities, the company owns and operates:
- A short-line rail freight service in Iowa.
- A Mississippi River barge, rail, and truck freight terminal in Illinois.
- Freight brokerage and wind turbine blade recycling services.
- A rail-served warehouse in Iowa.
Energy Investments
Alliant Energy holds interests in:
- A natural gas-fired electric generating unit near Sheboygan Falls, Wisconsin.
- A wind farm located in Oklahoma.
Corporate History
Formerly known as Interstate Energy Corp., the company rebranded as Alliant Energy Corporation in May 1999.