Power station is an electrical generating station. The energy efficiency of a power station is usually called thermal efficiency and may be defined as the electrical energy leaving the station divided by the fuel energy entering the station. It is essentially a measure of the overall fuel conversion efficiency for the electricity generation process.
The types of power station includes:
Bevel gears - Used to change the axis of rotational motion.
Spur gears - Passes power from idler gears to the wheels.
Planetary gears - Used between internal combustion engine and an electric motor to transmit power.