Electric power trains and systems are still in the development phase and will be for some time.
However that development could work hand-in-hand with the gaseous fuel advantages. With hybrid delivery system you get electic power to the wheels, but with a great range due to on-boad fuel. By utilising CNG for Trucks and Buses as a 'transition fuel' to wean us off diesel.
Additionally bio-methane can be cleaned and compressed to make transport CNG, but derived from our ever increasing 'mountains of food, human, farming and other wastes. So two issues resolved.
CNG is ideal for buses, Truck and even trams and trains, as seen in Europe.
|Swedish CNG Train|