A similar analysis on automobile efficiency is shown in the Figure below.
The table below shows that only about 10% of the energy in the crude oil in the ground is in fact turned into mechanical energy moving people.
Overall Efficiency of an Automobile:
Production of Crude |
96% |
96% |
Refining |
87% |
84% |
Transportation |
97% |
81% |
Engine |
25% |
20% |
Transmission |
50% |
10% |
|