Homegrown, responsible renewable energy

Our generation portfolio has nearly 1,200 megawatts of renewable and alternative energy sources. Most of that comes from wind generators across Iowa, southern Minnesota and Wisconsin.

How we use wind energy

Owned and operated wind farms

We own and operate four wind farms in Iowa, Wisconsin and Minnesota.

In July 2016, we announced our plans to invest approximately $1 billion to expand our Whispering Willow Wind Farm in Franklin County. The five-year project will add up to 500 megawatts of clean energy to meet our customers’ needs.

Purchased wind energy

We purchase nearly 600 megawatts of wind energy from wind farms across Iowa, southern Minnesota and Wisconsin.

Learn more about all our wind energy producers

Producing your own wind energy

Wondering if wind generation is right for you? Alliant Energy customers can call our Renewable Hotline at 1-800-972-5325 to speak to one of our renewable experts.

Ready to connect your wind system with our distribution system? Our customer interconnection process ensures safe installation.

Participate in our RFP for more wind energy

We are issuing a request for proposals (RFP) to add nominally 200 megawatts to our wind generation portfolio. Additional wind energy will bring long term value to our customers.

learn more

Support renewable energy with no hassle!

Through Second Nature™, we use our buying power to bring you the best deal on clean energy.

learn more

A clean energy future

How are we going to get there? With a strong strategy that includes renewable and highly efficient energy sources.

learn more