The Power Production Department is responsible for the operation and maintenance of SIPC’s generating fleet, which consists of two coal-fired units and two natural gas peaking units. This department is also responsible for SIPC's participation at the Prairie State Generation Company.
| Department Manager | Todd Gallenbach |
| Plant Engineering Superintendent | Clark Madden |
| Operations Superintendent | Greg Bain |
| Asset Manager (PSGC) | Robert Conn |
| Electrical Planning Supervisor | Ken Mausey |
| Electrical Maintenance Supervisor | Mike Green |
| Mechanical Maintenance Supervisor | Jack Glass |
| Sr. Coal Handling and Lab Supervisor | Steve Robinson |