"Unit-2 is in advanced stage of commissioning and all efforts are on to commission it shortly. For the third and fourth units, Atomic Energy Regulatory Board has given its nod for taking up site excavation work," KKNPP Site Director, R S Sundar said.
The clearance from AERB for Units 3 and 4 would enhance construction activities of these units, he said after unfurling the tricolour at the plant in Tirunelveli today.
In the next step, scientists would increase the reactor power in "phases" to generate 1,000 MW of power, he said.
Sundar clarified that no water from Thambirapani river is being used at the plant site as well as township.
There were reports of villagers charging KNPP with using water from a scheme promoted by Tamil Nadu Water Supply and Drainage Board to supply drinking water to 13 village panchayats near KKNPP.