"The boiler, for its third 660 MW unit at the 3,960 MW Sasan Ultra Mega Power Project, has been commissioned," the company said in a statement.
The first 660 MW unit of the Sasan UMPP had been commissioned in March 2013 while the second unit was synchronised to the grid in December 2013.
Meanwhile, coal production has already commenced from the 20 million tonnes per annum capacity Moher and Moher-Amlohri coal mines, allotted for the Sasan plant.