The transportation sector in developing countries like India is essentially dependent on oil as energy source. India imports 70 % of its crude oil which has serious economic and social ramifications. The gradual decline of oil reserves coupled with their escalating prices have rendered the present transportation systems unsustainable in the long run. Electrification of transportation offers an alternative to the oil-based economy of today.
Instead of taking power directly from the electricity distribution network, propose to use large capacity batteries such as VRBs (Vanadium Redox batteries) as indirect source of power supply. These batteries will charge themselves during off peak hours when the load on the distribution network is low and will act as a charging station for the buses during peak hours.