IIT Madras Research Park, which runs a 1.2 million sq ft building that provides plug-and-play facilities for corporate R&D centres, reckons that it can save Rs 4 crore a year just by buying wind and solar power and storing it. The Research Park, which also houses the IIT Madras Incubation Cell that has spawned over 300 start-ups, has come to this conclusion after a detailed study. It is now implementing the plan. “Today, I pay Rs 12.30 a kWhr of electricity,” says Prof Ashok Jhunjhunwala, the septuagenarian academic-cum-entrepreneur, who set...