Ameren Illinois Energy Efficiency
Ameren Illinois customers can receive rebates for purchasing and installing qualifying smart thermostats that optimize heating and cooling usage. Some models available at discounted upfront pricing through retail partners.
Rebate amount varies by thermostat model and purchase channel
Official program page checked live on 2026-06-17.
Data last verified 2026-06-09. How we verify our data.
A grant-savvy contractor in O'Fallon, IL can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.
This grant requires a licensed contractor
This grant requires the work to be done by a licensed contractor, and you will likely need a written estimate to apply. Get a free estimate from a contractor in O'Fallon who knows grant paperwork.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
Documents you will likely need
Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.
Deadline: Ongoing, while supplies last
Ask us. It is free, and a real person answers within a business day.
Email us about this programGrant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.
Rebates and discounts that stack on top of any grant. Most are free to use.
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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