He then developed an advanced model and has transferred the technology to a local entrepreneur. In a live demonstration, Kalita gets his equipment—an iron wheel with rotor blades, some pulleys, an alternator and a lot of wires—lowered into the river water, with two hollow plastic drums attached to the device to keep it afloat. The rotor blades start moving, lighting up a bulb and turning on a pedestal fan. Kalita has applied for a patent for his innovation but there are bigger dreams too: "I have developed a spinning device that runs on both alternate and direct current. This will be useful for the weavers in Assam." He also wants to create a ‘solar gasifier’ that can use the sun’s energy to generate gas for cooking.