Alternatives to oil are not silver bullets: irrespective of the source of motive power, continued growth in motor traffic would lead to sustainability problems. Sourcing power locally helps provide a natural link back to local environmental capacity. Ensuring that the amount of power needed to charge electric vehicles can be sourced sustainably locally, for example, helps reduce the pressure on the countryside from new pylons.
Where there is no or limited refueling infrastructure for an alternative power source in your area, there may need to be a critical mass of vehicles before investment can be justified. This is a good reason why it can help to encourage a local operator of public transport or other large vehicle fleet, such as a local authority’s, to convert a proportion of their vehicles.