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Operations & Organization

Alliant Energy Corporation is a regulated, investor-owned public utility holding company providing regulated electric and natural gas service to approximately 1 million electric and 420,000 natural gas customers in the states of Iowa, Wisconsin and Minnesota.

Providing its customers in the Midwest with regulated electricity and natural gas service is the company’s primary focus.

Alliant Energy, headquartered in Madison, Wis., is a Fortune 1000 company traded on the New York Stock Exchange under the symbol “LNT.”

Operations at a glance

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

  • Nearly 5,000 employees across the country and abroad.
  • Operating revenues of $3.3 billion (year-end 2006).
  • Total assets of more than $7 billion (year-end 2006).

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

How we’re organized

Alliant Energy’s utility operations serve more than 1.4 million customers in Iowa, Minnesota and Wisconsin. Our service territory covers 54,000 square miles in the heartland of America and includes 9,700 miles of electric transmission lines and 8,000 miles of natural gas main.

We maintain a strong fleet of fossil fuel, nuclear and renewable generating facilities across the upper Midwest, generating more than 31 million megawatt hours of electricity each year.

Learn more about our utility operations

Alliant Energy Resources is the parent company of Alliant Energy’s non-regulated businesses. We are concentrating our strategic focus on the profitability and cash flows of our remaining business platforms.

Learn more about our non-regulated businesses

Alliant Energy’s Corporate Services business group supports the other areas of the company with traditional administrative functions including information technology, human resources, communications, environmental, safety and more.

2007 Annual Report

2007: Building On Our Commitment

2007 was a year of building on our commitment to our customers, shareowners, employees and communities.

We reduced the company’s risk profile by divesting our remaining international investments, and made progress on our utility generation plan that is designed to meet increasing customer demand and to reduce our reliance on purchased power agreements. The plan also reflects our continued commitments to energy efficiency and environmental stewardship.

Read our 2007 Annual Report