The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The graphic illustrates how is

electricity

powered by geothermal energy in a geothermal power plant. The

overall

process of generating

electricity

can be split into 5 key points. The first

point

is cold

water

, which should be pumped down to 4.5km deep underground, it should be injected until it's ready to heat which is the second key

point

. The third

point

is waiting for the

water

flows through a distance of the geothermal zone(hot rocks) naturally until it's ready to use. The following fourth

point

is pumping the hot

water

up into a condenser which is built on the ground to condense the

water

into steam. The

last

step is driving the turbine by the steam from the condenser to power the generator to produce

electricity

, which can

hence

be transmitted to thousands of households through an electrical tower. To summarise, the method of producing

electricity

by geothermal power is to use the heat feature of hot rocks underground to heat up cold

water

,

then

use the hot

water

to drive an electrical generator to yield

electricity

.