Photovoltaic systems are fast
becoming a popular choice as an excellent alternative
source of energy. These systems are at the core of using
solar energy that is used to power a wide array of
applications. Photovoltaic systems are fundamentally
constituted of photovoltaic modules, which are basically
an interconnected matrix of multiple photovoltaic cells
(solar cells). Thus photovoltaic systems are essentially
a collection of photovoltaic modules, arranged together
to form a solar panel or a photovoltaic array.
A
single cell is usually not powerful enough to generate
sufficient electricity to be of much use. But a whole
array of them is another story. They can produce enough
power to suffice an entire urban home. Dictated by
practical needs, and also for long-term economy,
multiple photovoltaic cells (solar cells) are usually
used together in a photovoltaic module. However, that’s
not the end of the story. A number of such modules are
again used together to complete the photovoltaic system.
A photovoltaic panel (or a solar panel, as it is
commonly referred to) features an assemblage of
photovoltaic modules that are fastened together by
suitable mechanical means, are wired with each other and
constructed to be used as a unit that can be readily
installed and used. These panels, in order to improve
their longevity, often carry a protective glass covering
as well as a frame constructed of plastic, fiberglass or
metal. Remember, photovoltaic systems are not very
robust in nature. They are particularly prone to the
ravages of the elements. As such, they usually require
some degree of protection from the usual environmental
impact and ravages.
Today,
photovoltaic systems are being
manufactured by a large number of companies. These
systems come in different shapes and sizes. However, in
most cases, the modules consist of wafer-based
crystalline silicon or cadmium telluride cells. All
photovoltaic systems carry some common features without
which they would be pretty much useless. In order to be
fully functional, the photovoltaic cells in a properly
set up photovoltaic system must be electrically
connected to each other.
Proper
care should also be taken to ensure that the cells are
not damaged in transit or during installation. It should
also be ensured that adequate protective measures be
taken to shield them from such environmental hazards as
hail, snow and heavy wind. Wafer-based silicon cells are
very brittle in nature and they call for extra care.
With so many useful resources available today, especially on the Internet, it is not a difficult preposition to set up photovoltaic systems at home. However, the job calls for some degree of familiarity with solar power technology. How do solar panels work – information on this is always helpful. What is the cost of solar panels and where can you get it and other parts cheap? Where do you set up the system and how do you install it? How to wire the system? What are the safety precautions? A step-by-step guide clearly walks you through all the necessary steps, and helps you get started on the right path.
