Yes. A powerplant is much more efficient in converting fuel to energy than a car engine. A car engine wastes most of the energy on heat. Powerplants usually inc

Yes. A powerplant is much more efficient in converting fuel to energy than a car engine. A car engine wastes most of the energy on heat. Powerplants usually include systems to capture excess heat and convert it to energy. There have been many studies done on the effective MPG of a tesla roadster, and of course they differ based on their assumptions, but all of the ones I have seen show the roadster getting over 100 effective mpg. The hydrogen technology has one big problem. It does not exist. Well to be fair to them, it does exist but not in a consumer product. You cannot buy an ordinary street legal hydrogen car now. But you can get an electric one. If hydrogen ever takes off it will still have a similar issue as the electric -- the hydrogen would still have to be generated somewhere (usually by taking it from water) and that would require electric power. Hydrogen does have some theoretical benefits over electric (such as more high density energy storage), but currently electric technology is advancing much faster. It is widely suspected that some of the proponents of hydrogen support hydrogen only as a way to remove support from electric.