About our operations, compliance and values

Alliant Energy Corporation (NASDAQ: LNT) provides regulated energy service to approximately 1 million electric and 425,000 natural gas retail customers across Iowa and Wisconsin.

Guided by our purpose-driven strategy to serve customers and build stronger communities, our mission is to deliver the energy solutions and exceptional service our customers and communities count on – safely, affordably, efficiently and responsibly. With a focus on powering beyond the market challenges of today, we also have an unwavering commitment to driving what’s next in energy.

We take our responsibility as a corporate citizen seriously. We are thoughtful stewards of the environment and supporters of the communities in which we do business. We aggressively pursue emerging technologies and safe, sustainable methods of energy production as we aspire to achieve net-zero greenhouse gas emissions from our utility operations by 2050.

We are an equal opportunity employer and appreciate the differences a diverse culture brings to our work environment, company and customers. We recognize, respect and take pride in creating an inclusive and diverse workplace. These efforts have earned us recognition on many lists, including Bloomberg’s Gender-Equality Index and the S&P 500 index.

We have two public energy companies that are principally engaged in the generation and distribution of electricity to retail electric customers, along with the distribution and transportation of natural gas to customers in primarily rural communities.

  • Interstate Power and Light Company (IPL) provides electricity to approximately 500,000 retail electric customers and transports natural gas to approximately 225,000 customers across Iowa. As directed by our state regulator, the Iowa Utilities Board (IUB), we provide utility services to incorporated communities and utilize nonexclusive franchises that cover the use of public rights-of-way for utility facilities in incorporated communities for a maximum term of 25 years. We also sell electricity to wholesale customers in Minnesota, Illinois and Iowa.
  • Wisconsin Power and Light Company (WPL) provides electricity to approximately 500,000 electric retail customers and transports natural gas to about 200,000 natural gas retail customers across Wisconsin. We operate in municipalities pursuant to permits of indefinite duration and state statutes authorizing utility operation in areas annexed by a municipality. In addition, we sell electricity to wholesale customers in Wisconsin.

Operations at a glance

Number of electric customers
998,896
Number of natural gas customers
428,143
Number of employees
3,281
Operating revenues (year-end 2023)
$4 billion
Total assets (year-end 2023) $21.2 billion
Headquarters Madison, Wisconsin 
Service area 54,369 square miles in Iowa and Wisconsin
Electric generation 33 million megawatt-hours per year
Maximum summer peak hour demand 5,856 megawatts
Utility natural gas sold and transported 161,582 thousands of dekatherms

All numbers are approximations. Updated 2/22/24 .

Alliant Energy's Core Values

Our six Core Values shape everything we do.

Safety value icon
Live safety. Everyone. Always.
Our first priority is that nobody gets hurt.
do the right thing values icon
Do the right thing.
We keep our promises and conduct our business openly and honestly.
care for others value icon
Care for others.
Together we create a workplace where people feel like they belong and can use their unique backgrounds, talents and perspectives to their fullest potential.
make things better values icon
Make things better.
We partner with our customers and communities to solve problems, create opportunities and help make life better.
act for tomorrow values icon
Act for tomorrow.
We use resources wisely, care for the environment and continuously improve ourselves and our company.
think beyond, be bold values icon
Think beyond. Be bold.
We create and embrace change, innovate beyond current practices and use our curiosity to find new solutions.

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