Geothermal Energy | Geothermal Energy Work

With the news media full of stories that relate to the negative impact we are having
as a species on our planet it is only natural that as a society we are interested in
ways that we can lessen our footprint. There is now a lot more research going into
alternative energy systems, solar power and wind energy are the two best known but there
is also a massive potential in other concepts, for example geothermal energy. The
information below should help you to understand the answer to the question "how does
geothermal energy work" and whether it is a system that will be taken up widely.

You may be aware that the temperature within the earth is a lot more than on the surface,
if you were to go do deep into a mine you will see that even though there is no sunlight
penetration the ambient temperature can be overwhelming. This is because at the center of
the earth the core is like a giant furnace, also as the rocks and strata beneath our feet
are under immense pressure this creates a build up of heat.

It is this heat source that can be tapped into for geothermal energy. Unlike other energy
systems, geothermal energy does not depend upon the vagaries of the climate, it is renewable
and constant.

The way in which this energy can be tapped usually involves drilling a very deep and narrow
hole into which cold water is pumped, this fluid is then brought back to the surface after it
has been warmed, this process can be used to drive various electricity generating systems to
provide energy to households and businesses.

Geothermal energy has in fact been used in some nations for many years. Take for example Iceland.
This volcanic island located in the north mid-Atlantic is very active geologically. Many homes
and commercial buildings are heated in the long cold winters by warm water drawn from the process
described above. In Iceland's capital Reykjavik, as many as 95% of the buildings are presently
heated using geothermal systems.

Of course, as like any alternative energy systems, geothermal does have its detractors. Criticisms
suggest that its not viable on a large scale and that there is the potential for environmental
degradation caused by drilling into the earth. Only time will tell whether it is an option that
is taken up on a larger scale, as a greater amount of funds go into the research it is hoped
that it will become a more viable option.

How Does Geothermal Energy Work.