1. Understanding How Green Energy Works
With global warming being a serious threat and causing untold devastation to the planet, talk of ‘going
green’ and being ‘eco conscious’ has rarely been higher. You can barely go anywhere now it seems
without encountering someone talking about green energy or carbon footprints, but when we’re really
honest with ourselves, do we always know what these buzz words mean? Here we will look at what green
energy is, and how it works, so that you can nod a little more sagely when discussing it, and so that you
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What is Green Energy?
Firstly, what is green energy? Well essentially by ‘green’ we mean energy that has no serious
repercussions on the planet and that means generally no harmful by-products. Using petrol then or any
other form of carbon for fuel is not a form of green energy because it will produce CO2 gasses afterward
which cause global warming.
At the same time though in order to be considered green, the energy has to be from a renewable source.
This means that we aren’t plundering natural resources that will run out, but are instead relying on infinite
sources such as the tides or the sun. Eventually we’re going to run out of coal if we keep using it, but the
sun should keep burning for a few million more years yet.
Lastly to be considered green the installation of the energy production must also be kind to the
environment. This means that a damn might not be considered green if it is an eyesore that blocks the
natural flow of the sea and destroys a natural habitat for marine life.
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How Does it Work?
Going into how green energy works here would be confusing and take a long time as there are so many
different kinds of green energy from solar energy (itself split into two kinds – solar thermal and solar
voltaic), to wind energy or geothermal energy.
However basically all of these forms of energy production rely on the same basic principles, which is that
they harvest kinetic energy (movement energy) or heat energy, and then convert this into electricity that’s
useable in our homes. In the case of wind turbines or tidal power this is accomplished by simply allowing
cogs to be turned by the wind or tides, while in the case of solar power this occurs by allowing the light or
heat of the sun to excite particles into a current or to heat up small tubes of water respectively.
Usually this is then used to drive something called a turbine which is what allows this kinetic energy to be
converted into electricity. This itself relies on something called electromagnetic induction – which is what
happens when you rotate a piece of metal in a magnetic field which again excites the electrons and causes
them to move in a current.
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How Can I Use it?
However for the most part you don’t need to understand the ins and outs of electromagnetic induction to
enjoy green energy. Just get in touch with a service that can supply you with solar panels or geothermal
pipes and then enjoy the free energy…
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