Rush Island Energy Center

Ameren Missouri announced it will close its Rush Island coal plant in Festus over the next few years

The decision upholds a 2017 ruling by a lower court and part of a 2019 order that Ameren install pollution controls at the coal plant.

A federal judge on Monday ordered Ameren Missouri to install devices at its power plants in Festus and Labadie to remove harmful air pollutants. U.S.…