Power System Operation Corporation Limited (POSOCO) is a wholly
owned subsidiary of Power Grid Corporation of India Limited (PGCIL).
It was formed in March 2010 to handle the power management functions of PGCIL.
It is responsible to ensure the integrated operation of the Grid in a reliable,efficient
and secure manner. It consists of 5 Regional Load Despatch Centres and a National Load Despatch Centre (NLDC). The subsidiary may eventually be made a separate company, leaving the parent firm with only the task of setting up transmission links. The load despatch functions, earlier handled by PGCIL, will now come up to POSOCO.