Internal combustion engine uses only about 30-40% of the energy in gasoline, because it can't make use of the majority of the energy wasted as heat. Stationary

Internal combustion engine uses only about 30-40% of the energy in gasoline, because it can't make use of the majority of the energy wasted as heat. Stationary power plants can use that heat. Electricity transfer, battery charging, and electric motors are all over 90% efficient, with overall "well to wheel" efficiency around 80%.