Electric customers of Ameren Missouri will see a small increase on their bills starting later this month.
The Missouri Public Service Commission says a typical residential customer will pay an additional $1.54 a month to Ameren to offset increases in the utility's costs to purchase fuel or power.
Ameren Missouri is the state's largest electricity provider, with about 1.2 million customers. The cost increase will take effect Sept. 24.
State utility regulators approved a similar fuel-based cost increase earlier this month for customers of Kansas City Power & Light Co.