Although
some consider solar fountains to be less technologically advanced
then the systems that run homes or businesses, the truth of the matter
is that these systems are very much alike.
For example, the same kinds of photovoltaic cells are used for fountains
as are used for homes and businesses. Granted, the PV cells for fountains
are going to be smaller for the most part, but their function is essentially
the same.
One of the differences between a home solar power system and a system
for the fountain is the fact that the solar energy must be used in
real time for the most part with the fountains.
When the sun goes down, a home often has a battery from which it
can draw excess energy that has been stored throughout the day. Those
who do not have a battery often connect their system to the power
grid to make sure that electricity will be available.
Most solar fountains do not have this convenience. The light that
hits the silicon cells of the PV panels must be used immediately.
There usually is no battery or backup system.
However, because technology is improving there is a movement toward
using more battery back-up for these kinds of systems.
A cloudy day does not necessarily mean that the system will not work,
but the lack of UV rays penetrating the solar cells will certainly
at least cause a temporary slow down of the system.
The set-up of solar fountains tends to vary quite a bit depending
on which kind of solar fountain is going to be used. Some of these
fountains include a small solar panel that is built-in onto the fountain
itself.
Typically this kind of panel is reserved for the smaller fountains
that do not need quite as much energy thanks to their small size.
Because it would detract from the beauty of a fountain to slap a large
PV cell on it, most of the cells are designed to fit properly and
inconspicuously on the item.
Often, some of the larger fountains will instead have one or more
solar cells somewhere nearby, but not necessarily on the item. Frequently,
these solar panels are placed at an angle on the grass in order to
be able to effectively gather the UV rays that are needed to process
the energy that is flowing into the system.
One of the most [positive aspects about having and using these kinds
of solar fountains is the fact that the maintenance for them is next
to nothing and that the electricity bill will not be affected at all.
However, there are disadvantages as well. While these disadvantages
are not overly concerning, for some they could be a deal breaker.
Those who have a fountain area where it is vital that the fountains
run in the evening may be better advised to use something other than
solar fountains. Even with a battery, there is no guarantee that the
battery will have been able to collect enough energy during the day
to keep the system running throughout the night.