Did you know that you can save on your utility bill with Ameren by switching energy suppliers?

Utility page how to switch energy suppliers


Compare rates or go green by entering your zip code here.


Ameren Illinois delivers energy to 1.2 million electric and 806,000 natural gas customers in central and southern Illinois. Its service area includes the cities of Peoria, Springfield, Decatur, Jacksonville, Normal, and Carbondale. Residential customers in can choose their electric supplier and business customers can choose their gas suppliers as well. If you haven’t chosen an independent energy supplier, you will receive a default electricity and natural gas plan through Ameren Illinois.


Ameren Illinois electricity rates

The cost of the default plan for residential and business customers depends on which rate zone you live in. Check out the map below to see which zone you live in.

Source: Ameren Illinois

Ameren Illinois natural gas rates

Residential and small business natural gas customers who do not sign up with an independent energy provider will receive a Basic Generation Service. The price for Basic Generation Service will be the same no matter which zone you live in.

Ameren Illinois "Price to Compare"

The rate for Basic Generation Service is your “Price to Compare.” You can use it as a comparison tool to help you decide if you can save money by choosing another supplier. If another supplier’s price per kilowatt hour is lower than the “Price to Compare,” you can save the difference per kilowatt hour by switching to that supplier. Ameren customers can browse energy plans to see if any suppliers are offering lower rates and to find the plan that's right for you.

To report an outage or a gas leak you can reach Ameren Illinois’ customer service line at the number above.

Ameren IL
300 Liberty St.
Peoria, IL 61602


Residential Service


Commercial Service