If you are vision-impaired or have some other disability under the Americans with Disabilities Act or a similar law, and you wish to discuss potential accommodations related to shopping or ordering on or using the benefits of our website, please contact Alliant Energy at 1-800-ALLIANT (800-255-4268).
Emergency? Call 1-800-ALLIANT (800-255-4268)

Operations and Organization

Alliant Energy Corporation (NYSE: LNT) is a Midwest U.S. energy company primarily engaged in electric generation and the distribution of electricity and natural gas. 

For more than 100 years, Alliant Energy and our predecessor companies have kept homes warm, lights burning and factories running across the upper Midwest.

Operations at a glance

Number of electric customers

950,000

Number of natural gas customers

410,000

Number of employees

4,070

Operating revenues (year-end 2015) 

 $3.3 billion

 Total assets (year-end 2015)

 $12 billion

Headquarters

Madison, Wisconsin

Service area

54,369 square miles in Iowa and Wisconsin

Miles of electric lines

42,035

Miles of natural gas main

9,426

Electric generation

31 million megawatt-hours per year

Maximum summer peak hour demand

5,385 megawatts

Utility natural gas sold and transported

122,797 (thousands of dekatherms)mi

All numbers are approximations.

In addition, our focus extends beyond our energy operations. Every day, we demonstrate our commitment to community involvement.

How we're organized

Utility business
Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL) are Alliant Energy’s two utility subsidiaries. As the primary targets of our future capital investments, the utilities also represent our growth platform. The strategic plan for Alliant Energy’s utility operations is concentrated on:

  • Competitive value: We aggressively manage costs and are a trusted partner as our customers seek energy solutions.
  • Exceptional service: We use our expertise and creative problem solving to enhance the customer experience and system reliability.
  • Responsible resources: We find innovative ways to embrace environmental challenges, operate more efficiently and provide flexible energy resources.
The utilities own a portfolio of electric generating facilities with a diversified fuel mix including coal, natural gas and renewable resources. The output from these generating facilities is supplemented with purchased power.

Non-regulated businesses
Alliant Energy Resources is the parent company of Alliant Energy’s non-regulated businesses. The strategic plan for Alliant Energy’s non-regulated operations involves maintaining a portfolio of businesses that are accretive to earnings but not significant users of capital.

Learn more about our non-regulated businesses

Support services
Alliant Energy Corporate Services, Inc. supports the company with traditional administrative functions including strategy, accounting, communications, legal, regulatory, information technology, environmental and safety management and more.

If you are vision-impaired or have some other disability under the Americans with Disabilities Act or a similar law, and you wish to discuss potential accommodations related to shopping or ordering on or using the benefits of our website, please contact Alliant Energy at 1-800-ALLIANT (800-255-4268).