About Us
Who Is Ameren Illinois?
Ameren Illinois (formerly AmerenCIPS, AmerenCILCO and AmerenIP) provides energy services to 1.2 million electric customers and more than 800,000 natural gas customers across the southern two-thirds of
To learn more about the quality of our work, our people and our services, visit our comprehensive About Us section at AmerenIllinois.com:
- Get the facts about the Ameren Illinois
- Explore reliability projects and initiatives
- Discover how we’re helping you save energy
- Find out about energy assistance, payment options and outages
- Learn how to stay safe around your energy systems
- See how we’re involved in our communities
- And more



