Did you know Geothermal Energy is used by 26 countries globally? Let’s fact find.
The heat generated by the sub-surface of the earth is called
geothermal energy. It is found in rocks or fluids below the lower surface of
the ground or hot lava or magma located on the lower surface of the earth. People
can capture this geothermal energy from geothermal power plants or geothermal
heat pumps.
Geothermal power plants are used to generate electricity by
absorbing heat from the lower surface of the earth, and geothermal heat pumps
are used to keep the water near the surface warm or provide heat to buildings.
Apart from buildings, the energy can also be used to heat other structures such
as parking slots, crosswalks.
Most of the earth’s geothermal energy remains in the form of
water, steam, or magma. It is more efficient and cost-effective than burning
fossil fuels, and geothermal plants are more reliable because they can run 24×7
and 365 days continuously.
Advantages of geothermal energy:
It has many advantages
It is beneficial for the environment:
Geothermal energy is extracted from the earth without
burning fossil fuels, and there is no emission of any kind from geothermal fields. It is beneficial because by using
this energy, you can save up to 80 percent. About 26 countries in the world
make use of this energy.
It is a reliable source of renewable energy:
Geothermal energy has more benefits than other renewable
energy sources like biomass, wind, or solar. It has a constant source because
it is not dependent on the sun, wind, or it can be available all year long.
High-Efficiency Systems:
Geothermal power plants or pumps use 25-40 % less
electricity than any other conventional system. They can adjust to different
situations due to their flexible design and require less space than a
conventional system.
Less maintenance:
Geothermal systems require less maintenance as they have only a few movable parts. Geothermal heat pipes have a warranty of 25-50 years, while the pump can last for up to 20 years.
Disadvantages of Geothermal energy:
Everything on earth comes with some benefits and some losses.
Geothermal energy also has some disadvantages.
Concern for greenhouse emission:
When geothermal energy is extracted (Methane, Ammonia,
Carbon-di-oxide, and Hydrogen sulfide) from the earth, some gases are released,
which are harmful to the environment.
Depletion of geothermal sources:
Despite this energy is renewable, after some time that
specific places may cool down, and then it will be difficult to extract energy
from those places. In non-depletable options, only magma is available, but no
concrete method of extracting this energy from magma has been successful so
far.
High Investment:
Another disadvantage of geothermal energy is that it
requires high investment to install its complex system into one’s home. But the
return in such type of things is very promising, invested money can be earned
between 2 to 10 years.
Land requirements to be installed:
A piece of land next to the house is required to set
up a geothermal system. Without implementing any vertical sources as heat
pumps, it is not possible to implement geothermal systems for homeowners in big
cities.