> "You fail to take into account inefficiencies in transmission and charging. That would multiply required input by a factor of two or three, depending where yo

> "You fail to take into account inefficiencies in transmission and charging. That would multiply required input by a factor of two or three, depending where you measure it." I do not account for transmission inefficiencies, as this is highly variable depending on your location and grid infrastructure. But it would be extremely unusual for transmission losses to be as high as 66% like you suggest! As for charging losses, that's something like 10%. About 90% of the energy as measured at your domestic electricity meter will make it into the battery. I did account for this, by giving a deliberately low miles per kWh figure. In reality, most EVs will get significantly better efficiency than the 3 miles per kWh that I quoted.