P.O. Box 5098
Peoria, IL 61601
Since 2008, the Ameren Illinois Energy Efficiency Program has been helping our state transition into a more affordable and cleaner future. We don’t just work in your community, we’re a part of it. We work with residents, businesses, and partners across Illinois to save our customers money, strengthen our state’s economy, and lower carbon emissions. We are committed to helping you improve comfort, manage usage, and reduce costs.
The Ameren Illinois Energy Efficiency Program offers financial incentives for a variety of government projects. Learn more>