In a rundown hangar in the heart of Kathmandu, the remains of a dozen electric trolley buses stand abandoned and corroding. Caked in dust and bird-droppings and lined with rubbish, they are a reminder of a bold experiment, launched 50 years ago, to electrify the city’s public transport system. Down the side of one is written, “Keep me alive”. Today, that plea is being heard. More than 70% of four-wheeled passenger vehicles – largely cars and minibuses – imported into Nepal last year were electric, one of the highest rates in the world. The figure reflects a remarkable growth in