Keeping You Informed

Ensure your phone number and email address are up to date so you can receive important information about your account, billing and payments, and any outages in your area.

Log In & Update

Empowering Illinois

At Ameren Illinois, we believe in strengthening the communities we share through a range of corporate citizenship initiatives.

Learn More

Offerings & Services

No matter who you are or how you use your energy, we have options to help you manage it. See all of our billing and payment choices, alerts and notifications and energy efficiency programs and choose what works best for you.

Learn More

Ways To Save

Stay cool this summer with these simple energy-saving tips.

Learn More

Natural Gas Costs

A nationwide spike in the price of natural gas is impacting winter heating costs. Ameren Illinois buys natural gas at the lowest possible price and passes on those costs directly, without mark-up. Here are some steps you can take to control your usage and manage your energy bills. If you're having difficulty paying your energy bill, please explore assistance options online or contact us.

Putting Our Customers First

#1 in Customer Satisfaction with Residential Electric Service in the Midwest among Large Utilities.*

Learn More


Ameren Illinois wants to help you understand the options available to you, and how those options may affect your service.

Learn More