Constellation New Energy

QUINCY — Ameren recently announced an adjustment in its residential electric supply costs that will extend from October 2023 through May 2024. Ameren’s base rate for usage of up to 800 kilowatthours will be 8.104 cents per kilowatthour and 7.904 cents for each additional kilowatthour, according to Reg Ankrom, president of SIMEC Energy, a consultant…