PHWR commissioning India

India’s largest nuclear power station has progressed in its expansion, with Nuclear Power Corporation of India Limited (NPCIL) initiating the “Spillage to Open Reactor” process for Unit-3 of the Kudankulam Nuclear Power Project (KKNPP) on April 25, 2026. The activity involves flushing and conditioning of safety systems and main coolant pipelines using light water. It establishes cleanliness levels in the primary circuit required for subsequent commissioning stages and enables the start of individual functional testing…