Illinois Rate Facts Ameren Illinois Utilities

Growing our renewables

Ameren Illinois has plans to expand our energy portfolio to include 25% renewable energy by the year 2025. Read more.

Energy-saving tips, tools and incentives at

How do utilities change prices?

Your energy bill is a complex document, but it doesn’t have to be a mystery. Click on the links above to learn how we change prices, where we spend money and how we work hard to cut costs.

What is a rate case?

Watch the video on your left to learn how Illinois utilities change prices and why.


For recent rate case articles, click here.