Ameren Illinois customers could pay less for electricity in 2018, based on a plan the utility filed Thursday with the Illinois Commerce Commission.
The proposal would reduce electric payments by about $1.70 per month for the typical residential customer, Ameren said.
It is the second consecutive rate decrease that the Illinois subsidiary of St. Louis-based Ameren Corp. has filed for, according to the company.
The utility has filed for five rate decreases overall since Illinois' 2011 passage of the Energy Infrastructure Modernization Act, or Smart Grid Bill. The act implemented formula-based ratemaking for the state's major utilities based on certain metrics, including infrastructure investments.