The National Aluminium Company’s (Nalco) 160-KWp rooftop solar project at its Corporate Office here was formally inaugurated by Union Minister of State for Steel & Mines Vishnu Deo Sai on Wednesday. Nalco CMD Ansuman Das and Directors NR Mohanty, SC Padhy, Soma Mondal and V Balasubramanyam were present. This is the first largest rooftop solar power project commissioned in the State on a single roof. The project has been set up at a cost of Rs1.25 crore as part of the company’s effort to harness unconventional and renewable energy sources.