Ameren Illinois

Award category


Year released


Ameren Illinois delivers energy to 1.2 million electric and 816,000 natural gas customers in Illinois, and our mission is to meet their energy needs in a safe, reliable, efficient and environmentally responsible manner. Our service area covers more than 1,200 communities and 43,700 square miles. Since 2008, the Ameren Illinois energy efficiency programs have helped our customers save over $850 million in energy costs, providing an economic boost to residents and businesses throughout central and southern Illinois.  Over the next several years, the company will invest in a groundbreaking initiative to provide energy-saving benefits to more moderate- and low income customers.  In addition, Ameren Illinois has committed to help develop new companies and create new local job opportunities in the energy efficiency arena across downstate Illinois.