The company said it has filed for its sixth reduction in electric-delivery rates — this time seeking an overall $7.22 million decrease. COLLINSVILLE — Ameren Illinois customers stand to save just over a dollar a month on their power bills next year under the company's latest rate plan filed Thursday with the Illinois Commerce Commission. The company said it has filed for its sixth reduction in electric-delivery rates — this time seeking an overall $7.22 million decrease. read more