I do not understand the 7
I do not understand the 7 cents per kilowatt hour calculation in your article. Where I live, the energy cost runs closer to 30 cents per kilowatt hour. That would still make it a less expensive proposition to fuel, but it is unclear as to the overall cost since I would assume that these vehicles, like most electric vehicles, will cost more than their ICE counterpart. So the overall cost over a typical running life needs to be looked at rather than the running cost at a time when diesel fuel due to government policies has been made artificially expensive.