The diagrams below show two methods of using water to produce electricity.

The diagrams demonstrate how a hydroelectric dam and wave-air generator are used to produce electricity.

Overall

, two methods of generating energy are applied in different locations with various essential equipment and their operations are quite simple. Having looked at the first given diagram,

it is clear that

a hydroelectric dam is installed near the river where water easily flows into and is stored in the reservoir. The process begins when the gate opens to let it in.

In addition

, the width and angle of the penstock decide its speed which turns the turbine and spindle. When the spindle rotates in the generator, electricity is generated and

then

distributed to power lines.

Also

, the water is released into the river which ends the process. In terms of producing energy by using wave-air generation, it is apparent that the method is applied in the ocean. Two chambers are placed at sea to take advantage of the waves. When waves go into the lower chamber, the air is pushed into the upper chamber that turns turbine and spindle. As it rotates in the generator, electricity is produced. Simultaneously, the air is released from the upper chamber.