Illinois Choice

Retail Electric Suppliers Registered with Ameren

Each Retail Electric Supplier (RES) listed below is registered with Ameren and is able to serve non-residential customers in the Ameren Illinois service territories. A complete listing of Retail Electric Suppliers certified by the Illinois Commerce Commission (ICC) can be found on the ICC Website. Please note, however, that in order to serve customers in Ameren Illinois service territories, a RES must be certified by the ICC and be registered with Ameren.

Ameren Energy Marketing      1710 Gratiot Street      MC 902      St. Louis, MO 63103      888.451.3911	Integrys Energy Services      500 W. Madison Street      Suite 3300      Chicago, IL 60661      312.681.1800
BlueStar Energy Services      363 W. Erie Street #700      Chicago, IL 60610      866.258.3782	Liberty Power      800 W. Cypress Creek Road      Suite 410      Fort Lauderdale, FL 33309      866.769.3799
Constellation NewEnergy      550 W. Washington Boulevard      Suite 300      Chicago, IL 60661      312.704.9200	MidAmerican Energy      Unregulated Retail Services Div.      320 LeClaire      P.O. Box 4350      Davenport, IA 52808-4350      800.432.8574
Exelon Energy      2315 Enterprise Drive      Westchester, IL 60154      877.592.4275	Sempra Energy Solutions      1901 Butterfield Road      Suite 304      Downers Grove, IL 60515      630.390.2700
FirstEnergy Solutions      395 Ghent Road      Suite 413      Akron, OH 44333      800.977.0500	Strategic Energy      Two Gateway Center, Ninth Floor      Pittsburgh, PA 15222      800.830.5923
Glacial Energy      150 N. Michigan      Suite 2800      Chicago, IL 60601      877.569.2841