Making e-vehicles feasible

This is regarding the editorial "E-vehicles or e-mobility?" (1-15 October, 2017). Since charging a battery of an e-vehicle takes hours, one way to offer relief could be to allow swapping discharged batteries with charged ones. To make panel mounted vehicles a feasible proposal, enough space for the panels will have to be ensured to generate electricity. Alhough a welcome move, more research is needed to make it feasible.

A K TANDON VIA EMAIL