Electricity vs Petrol/Diesel prices
I'm really curious about the quoted reduction in energy costs that result if you chop in your diesel truck for a Tesla.
I've tracked my home energy costs for several years now, which show that currently I'm paying around 13.3 p/kWh for domestic electricity and 12.1 p/kWh for the petrol used in my car.
IOW, all things being equal, the energy cost of running an electric car charged off the UK National Grid should be fractionally higher than that of a conventional petrol-driven vehicle. This is based on a liter of petrol providing 9.7 kWh of energy when used to run an IC car engine - figure taken from "Sustainable Energy - without the hot air", http://www.withouthotair.com/ and assumes that electric energy costs at charge points are not subsidized, i.e. you pay the same per kWh at the charge point as you would if you plugged your car into a 13 amp socket at home.
We pay more in the UK for diesel fuel than petrol, but its energy content is higher, so I'm assuming as a non-diesel driver that the cost for its energy content, measured in £/kWh, is more or less the same as for petrol. If this is incorrect, kindly correct me by supplying the appropriate energy content of a liter of diesel road fuel.
Tesla's statement that fuel costs for an electric semi are less than those for a diesel implies that the cost per kWh of diesel fuel is higher than electricity in the US. Is this true?
Over to those living on the left side of the pond...