by Archana Rai & Pankaj Mishra, ET Bureau
It is not everyday that a young consultant at McKinsey & Co, one of the world’s largest management consultancy firms, trades in a job at the firm’s Seattle office for the rough and tumble of business in rural India. But that is just what John Howard did when he launched Duron Energy, a renewable energy company that has just started sales of solar-powered plug and play devices for lighting and battery recharges in villages across Karnataka and Uttar Pradesh.