Weatherization – Ameren Illinois Energy Efficiency Program

Builder wearing a helmet and overalls uses a caulk gun to seal windows, ensuring proper ventilation and insulation in a modern building

Seal and Save: How Weatherization Improvements Benefit Your Business

Post author:Jeffery
Post published:February 24, 2026
Post category:Business

For commercial buildings, the building envelope (walls, roof, windows, doors, and insulation separating indoors from outdoors) is one of the most important yet overlooked opportunities to reduce energy waste and improve comfort. When the envelope leaks, a building's heating and cooling systems work overtime, driving up utility costs and creating drafty, inconsistent indoor temperatures.

Energy Efficiency 101: Ten Tips for Businesses

Post author:Jeffery
Post published:February 23, 2026
Post category:Business

Improving energy efficiency in your business doesn’t have to require significant investments or equipment upgrades. Simple operational changes can help improve comfort for staff and customers, manage energy usage and reduce overall costs. The following low-cost and no-cost strategies are practical steps that any business can implement without disrupting daily operations.

Navigating the Energy Efficiency Journey at Cuba Schools

Post author:Jeffery
Post published:May 28, 2025
Post category:Business

Since 2018, Mark Mathis, maintenance director at CUSD #3 Fulton County, has been a man on a mission. That mission: energy efficiency.

Restaurant Owner Develops Appetite for Efficiency

Post author:Jake
Post published:May 1, 2025
Post category:Business

As Maria discovered, working with Ameren Illinois to create a more comfortable and efficient environment can be as satisfying as a meal at Mi Patio.

How To Rearrange Your Home To Be More Energy Efficient

Post author:Jake
Post published:December 12, 2024
Post category:Residential

Rearranging your furniture and other small adjustments to your home can make it feel warmer or cooler, which can help lower your energy bill.

Bump Up Your Basement’s Energy Efficiency

Post author:Jake
Post published:December 12, 2024
Post category:Residential

Basements are often multipurpose spaces used for everything from the kids’ playroom to plain old storage, which means you have tons of opportunities to make your basement energy efficient.

Illinois School District Rockets To Energy Savings

Post author:Jake
Post published:April 12, 2024
Post category:Business

The West Washington County School District has improved the comfort of students, faculty and staff, creating a comfortable learning environment while reducing their monthly electric and gas bills.

Cahokia School District Seals In Savings With Building Envelope Upgrades

Post author:Jake
Post published:September 12, 2020
Post category:Business

Buildings tend to shift and settle over time, creating cracks and gaps that leak air and cost money. The Ameren Illinois Energy Efficiency Program offers incentives to help schools, businesses and organizations reduce the size of those gaps and open the door to energy savings. By sealing the building envelope and reducing energy loss, the Cahokia School District will save an estimated $25,000 a year — money that will make a real difference for students.