Power Plant Services (PPS) is a leading non-OEM, after-market manufacturer of all types of mechanical parts for steam, gas, h ... ydro, and nuclear turbines; pulp and paper; refineries; and steel mill industries. We provide mechanical inspection services; parts manufacturing; parts repair and re-assembly; field machining; field services (open, clean, & close); inventory management; and project management in our four (4) Illinois and Georgia facilities. read more