Home Made Solar Power Testimonials
Displayed are extracts from some of the testimonials received from
the Ebook
......I just wanted to drop a line to say thanks. My wife and I have
been looking for good information on renewable energy solutions for some
time now because of the recent price increase in traditional energy
sources. After receiving your Earth4Enregy guide we made our own solar
panel grid, and it is giving us more than enough energy to power our
household appliances. Our next step is to build a wind powered system
for those cloudy days. We have already noticed how much money we can
save!
Thanks again for giving us the know how to help make this a better world
for our kids and grandkids.
...I wanted to personally take some time out of my day to thank you for
creating such a wealth of information in your ebook and sharing it with
the world
I have been looking for techniques on solar energy and energy saving
guides for so long. After reading this valuable information I now can
create my own energy saving solar generator, as well as my own wind
turbine. plus so much more.
This ebook has made my mind up on how easy it is to do these tasks,
maybe easy is not a word for it because it takes some energy on our part
to actually get out there and make these devices work for us.
I would recommend to anyone wanting to save the environment (for our
children) to grab hold of this book and use it, you wont regret it.
Check out the Earth4Energy Guide
now - Click here
Solar Panel History
Solar Cells are not a new invention and have been in existence since
the 19th century they work by the use of light falling onto an
electrodes. Over the years they have undergone vast research and
development to improve their efficiencies until their form in the
present day. They are now available with varying efficiencies and costs.
Their simple design should not detract from their purpose which is to
convert light energy into electricity energy and by harnessing this
electricity produced customers are able to either cut their fuel bills
and or bring power to inaccessible places.
Diagram courtesy US. Department of Energy
Modern solar cells consist three energy-conversion layers. The first of
these three layers necessary for energy conversion in a solar cell is
the top junction layer. The next layer in the structure is the core of
the device; this is the absorber layer. The last of the energy
conversion layers is the back junction layer.
As may be seen in the above diagram, there are two additional layers
present which are the electrical contact layers. There must obviously be
two such layers to allow electric current to flow out of and into the
cell. The electrical contact layer on the face of the cell where light
enters is generally present in some grid pattern and is composed of a
good conductor such as a metal. The grid pattern does not cover the
entire face of the cell since grid materials, though good electrical
conductors, are generally not transparent to light. Hence, the grid
pattern must be widely spaced to allow light to enter the solar cell but
not to the extent that the electrical contact layer will have difficulty
collecting the current produced by the cell. The back electrical contact
layer has no restrictions and functions as an electrical contact and
thus covers the entire back surface of the cell structure. Because the
back layer must be a very good electrical conductor, it is always made
of metal. |
