Yeah, I didn't try to estimate losses due to the rest of the energy system itself; there are also transmission losses with electrical energy, as well as battery losses. Do you have a ballpark for the sizes of these different losses? I'm assuming that for gasoline it's mostly the energy consumed in hydrocracking?

The range is pretty wide depending on the source of the crude oil: https://en.m.wikipedia.org/wiki/Energy_return_on_investment Refinery losses seem to be around 10% https://anl.app.box.com/s/a8s8qagg9smrl902jh5m6v06oe1ls0r6