If you are thinking about
renewable energy technologies for your home there are a number of
different solutions available. This is a brief guide to the different
types of technology that is currently available.
Renewables are really
starting to become realistic alternatives to traditional power and
heating solutions. When we think of green energy most of us will
think of solar and wind power. You have probably seen the large white
wind turbines whilst driving and solar panels on peoples roofs.
There are however a
number of other ways to get the green energy that indirectly use the
Sun's solar energy. Indirect solutions are great because they do not
rely on the Sun being out and blazing directly onto our solar panels.
It does not need it to be a windy day as with wind turbines. Instead
indirect solar takes the Suns stored energy from the air, ground, and
water.
Micro wind power uses a
small turbine either in your garden or on your roof. On windy days
the turbine will generate electricity and contribute towards reducing
your electricity demand from your supplier and thus save on electric
bills. They are a great partner to solar PV panels as it is usually
either windy or sunny or both.
Solar photovoltaic or
solar PV is like solar thermal except rather than heat water they
turn the Sun's light into electricity. A typical installation will
cover a large proportion of the roof of a typical house. They work
best in direct sunlight but also produce electricity even on cloudy
days.
Ground source heat pumps
work on the same principle as air source except they get their energy
from the ground. Cables are buried in your garden that extracts heat
from the ground and pumps it into the home. The energy is typically
used to power underfloor heating.
Micro-hydro and water
source heat pumps get their power from running water such as a
stream. Micro-hydro produces electrical power whilst water source
heat pumps produce heat. You, of course, need to have your house very
close to a river for this to be a valid option.
Micro combined heat and
power of CHP systems look pretty much like an ordinary gas boiler.
The difference is that they also produce your electricity. This may
not sound much like renewable technology but they are very efficient
and therefore save carbon compared to conventional systems.
Finally, there is
biomass. This is probably the least used in domestic situations. In
simple terms it is much like your gas boiler except rather than
burning gas it burns specially prepared pellets. These pellets are
usually wood-based and are designed so that they can be automatically
fed into the boiler much like gas is.
So
there is the roundup of the currently available technologies that you
could be using at home. You can use a combination of these systems as
many alternative technologies complement each other.
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