Wednesday, October 28, 2026
Crowne Plaza, Springfield IL
Registration is now open! Reserve your spot today. Additional details coming soon.
The Business Symposium is your one-stop-shop for energy efficiency — making it easy for your business or organization to learn about the latest technologies, while connecting with trusted energy professionals and gaining additional financial incentives to move your energy efficiency projects forward.
Are you a first-time Symposium attendee or new to the Program? Click below to learn more.
Be the first to learn about the newest Ameren Illinois Energy Efficiency Program offerings and financial incentives.
Attend a day full of designed to educate you about implementing energy-saving ideas.
Receive a BONUS COUPON potentially worth thousands in additional incentive dollars.
Interact with Program staff and Program Ally Contractors who can answer your questions.
Explore the ideas, technologies and trends shaping the future of energy efficiency at the 2026 Business Symposium! From building automation and industrial heat pumps to data center growth, peak demand management and more, attendees will gain practical insights they can apply at their own facilities. The 2026 Business Symposium will include six breakout sessions and eight mini-sessions in the Industrial Product Theater. Click below for more details.
Request a FREE Energy Consultation to take your next step in saving energy and money.
Questions? Call 1.866.800.0747 or email IllinoisBusinessEE@ameren.com.
Subscribe to our monthly newsletter for the latest Program updates.
Click store logo to reveal coupon-eligible smart thermostats.
*Instant coupon is also available for the following special order models: 6768549, 6768547, 5207972, 5207970, 4842215, 1054200, 900351, 900329, 900027, 899935, 899931, 899485.
*Instant coupon also available for the following special order models: 5207972, 5207970, 4842215, 1054200, 900351, 900329, 900027, 899935, 899931, 899485.
