Labadie Energy Center | St. Louis Public Radio

Labadie Energy Center

The Labadie Energy Center was one of two Ameren Missouri power plants involved in the data breach.
File photo | Veronique LaCapra | St. Louis Public Radio

Ransomware attackers have stolen data from a third-party vendor that supplies utility equipment to Ameren Missouri power plants.

Dozens of data files from Ohio-based LTI Power Systems appeared on a ransomware server in late February, including equipment diagrams and schematics from two Ameren Missouri facilities. No customer information appears to have been involved in the data breach.

Ameren's 2,400-megawatt plant near Labadie, Missouri, is the state's largest coal-fired power plant. It produces an average of 550,000 tons of coal ash each year.
Véronique LaCapra | St. Louis Public Radio

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. District Judge Rodney Sippel ruled that Ameren has 90 days to apply for a Clean Air Act permit from the Missouri Department of Natural Resources to install scrubbers at the Rush Island Energy Center in Festus.