The diagram shows the process by which electricity is generated in two types of hydroelectric power station. Summarise the information by selecting and reporting the main features. Write at least 150 words

The diagram compares the process by which

electricity

is generated in two types of hydroelectric

power

stations.

Overall

,

electricity

produced by a

plant

is traditionally produced in three stages, as opposed to in five stages at a run-of-river hydroelectric

plant

. In a traditional hydroelectric

power

plant

, river

water

rises behind a dam until it is sufficiently high enough to enter an intake pipe near the top. Once it enters, the

water

flows down into a much lower

turbine

chamber whereupon it causes the machine’s blades to rotate,

thus

generating

electricity

.

This

power

is

then

sent via transmission lines to customer’s homes.

On the other hand

, in a run-of-river hydroelectric

plant

, the natural flow of the

water

running downhill is harnessed to turn the

turbine

blades.

Initially

,

water

is

channeled

Change the spelling

channelled

show examples

away from the

water

’s primary path down a pipe into a

turbine

building

further

down the hill. On entering the building, the

water

causes

turbine

blades to rotate which in turn spins a generator that produces

electricity

.

This

power

is

then

conducted by transmission lines above the

plant

to where it’s needed. Surplus

water

then

exits the

plant

and rejoins the river to resume its original course.