Renewable Energy

At Alliant Energy, we're committed to providing safe, reliable, affordable and environmentally responsible energy for current and future generations. That’s why we promote energy efficiency and invest in renewable and alternative energy sources. Currently, our generation portfolio includes over 450 megawatts from renewable and alternative energy sources in Iowa, Minnesota and Wisconsin.

Our company's main source of renewable energy is wind, but we also own or support hydroelectric, biogas, and anaerobic digesters. View a map showing our renewable generation sources by fuel type and total capacity [PDF].

How It Works
Ever wonder how wind and solar power work? Find out how traditional power gets from the generation source to your home, and see how we harvest energy from the sun, wind and waste.

Homegrown Power
Thinking about a wind turbine or solar panel for your home? Find answers to your questions from getting started to selling your excess power!

Second Nature
Find out how you can support the growth of renewable energy in our service territory.