The position is ideal for a person with excellent technical skills and energy engineering experience with experience in calculating energy saving estimates, energy auditing, and communicating technical issues within the project team while working closely with contractors, suppliers, architects, and project engineers. The Ameren Illinois service territory includes several large to mid-size communities such as Galesburg, Quincy, Peoria, Bloomington-Normal, Champaign-Urbana, Danville, Decatur, Springfield, Charleston-Mattoon, Effingham, Mt.