By turning the crank, you generate kinetic energy that powers the train! In a hydroelectric power station, the movement of water creates electricity. Energy is then converted from one form to another.

The model depicts a reservoir forming an older hydroelectric dam. Water from the dam is directed to the small power station through a pipe. The water gains kinetic energy from the height difference and, in the power station, causes a turbine to spin. This turbine, in turn, drives a generator. When the generator spins, electricity is generated. Think of it as a giant bicycle dynamo!

From the power station, electricity is transmitted to the grid. Through the substation, it then reaches the railway's overhead line.

Caption: A modern hydroelectric power station with an underground intake pipe.