The diagram below shows how electricity is generated in a hydroelectric power station.

The provided diagram showcases the process of electricity production in a hydroelectric power station, which is initiated by the flow of

water

from the river into a high-level

reservoir

and ends with the transmission of electricity to the national grid. During the day,

water

flows down the river to reach a high-level

water

storage facility that features a

dam

. The

water

then

passes through the intake of the

dam

, after which it moves towards the hydropower station. The turbines at the hydropower station are activated, and the

water

turns them to generate power

that is

subsequently

supplied to the National Grid.

Finally

, the

water

is stored in a low-level

reservoir

at the end

of the daytime. The night operation begins by reversing the turbines and pumping the

water

from the low-level

reservoir

.

This

water

is

then

directed towards the

dam

and transported to the high-level

reservoir

. It is important to note that the intake to the

dam

remains closed, ensuring that all the

water

is retained in the high-level

reservoir

.