Are electric cars on the verge of becoming the norm, should we encourage this transition, and what would be the consequences for the environment, the automobile industry and our electricity grid? Over the past century, cars have become an integral part of our society. They generally offer greater flexibility than alternative modes of transport, and they are affordable to a large proportion of people. Ever since cars were first mass-produced, they have almost exclusively been powered by ICEs (internal combustion engines), which burn fossil fuels, such as petrol and diesel, to provide the energy required to turn the cars’ wheels and perform auxiliary tasks. However, in recent years concerns about climate change and dependence on oil have led to a great deal of effort and attention being invested in developing alternative ways of providing this energy.