if you rip out an engene from a car, then you can operate it at its most efficient rpm all the time, instead of when you happen to cross the right rpm on the right gear. So an engine powering a generator can almost always be more efficient than in a car.
This is not taking the losses in the electrical system when using the generated power in a moter to make the car move. But in a lot of cases, you still come out ahead
if you rip out an engene from a car, then you can operate it at its most efficient rpm all the time, instead of when you happen to cross the right rpm on the right gear. So an engine powering a generator can almost always be more efficient than in a car.
This is not taking the losses in the electrical system when using the generated power in a moter to make the car move. But in a lot of cases, you still come out ahead
The electrical losses are way less than the resistances of a mechanical drivetrain. It’s around 10-25% lower apparently.