Of course, while it's neither easy, nor cheap, that train does not need to have any batteries in order to run on electricity. Much of the UK's rail network is e

Of course, while it's neither easy, nor cheap, that train does not need to have any batteries in order to run on electricity. Much of the UK's rail network is either electrified or in the process of being electrified. The side effect of not needing to use energy to haul your energy source around is pretty cool, too.