the diagram below shows how electricity is generated in a hydroelectric powe station. summaeise the information by selecting and reporting the main features and make comparison where relevant

The figure illustrates the process in which the

electricity

is generated in a

power

station.

Overall

, it is evident from the diagram that high reservoir

water

behind a dam is used for hydroelectric

power

generation

and various process takes place during the

day

and night.

First,

for hydroelectric

generation

of

power

, a dam must be built to increase the level of

water

Correct article usage

the water

show examples

reservoir. Basically, during the

day

, the intake is open and lets the

water

flow through the turbines.

Secondly

, the turbines operate the

electricity

generation

by the generators in the

power

station.

Next,

the

power

lines take the

electricity

to the national grid.

Furthermore

, the low-level

water

reservoir will be flown back to the turbines, which are reversible and

also

act as a pump, at night.

Then

, the

water

will be pumped back behind the dam to be used again for

electricity

generation

the next

day

. In conclusion, the figure shows the process of how

electricity

is generated by hydroelectric

power

stations. The diagram

also

concisely represents the steps which are taken through

day

and night.