Residents in parts of Delhi now have a great chance to upgrade their old air conditioners and ceiling fans at a big discount. BSES Rajdhani and BSES Yamuna have launched an appliance exchange scheme that offers up to 63 per cent off on new energy-efficient appliances. The main aim of this programme is to help people use less electricity and reduce their power bills. It is also expected to reduce the overall load on the electricity grid, especially during the summer months.