"To operate the plant" means to manage or control the functioning of a facility or factory. It involves overseeing all the processes and activities necessary for the plant to work effectively and efficiently. Full definition
These costs include materials used, direct labor, plant manager salaries, freight and other costs associated with operating a plant (for example, utilities, equipment repairs, etc.). (entrepreneur.com)
No new nuclear plants are built, and all currently operating plants are phased out. (rogerpielkejr.blogspot.ru)
He has to supervise the activities of the staff operating the plant equipment and the output as a result of the equipment. (bestsampleresume.com)