The Solar energy is widely available and it is the one of the renewable energy that is gaining much popularity nowadays. The other energy sources are wind energy and biofuels too. But the solar panels are different as it uses photovoltaic cells or sometimes called solar cells to convert sunlight into electricity. The sun is not only the number one source of energy but also the cleanest source of energy and it does not produce any pollution The cost of solar panels has dropped drastically in recent years and there are various incentives too. In this article I will tell you the basic parts of a residential solar energy system.

The first thing we have to understand about how solar panels work is that light has the power to create electricity. If we can harness this power then we can create electricity at a low cost and also generate thermal heat as well, which can also be used to warm water and air. The term photovoltaic is used commonly for a single solar photovoltaic module which is a special type of cell which creates electricity in a way similar to the PV cells found in an ordinary cell phone.

Next we have to understand how solar panels work to produce electricity. Solar cells are made up of semiconductor materials which absorb light energy. These semiconductor materials are arranged in a way such that the light energy is absorbed when they are facing upward, thus creating direct current in the battery.

You may have heard about solar electric generators and solar panels also. But if we look more closely we find out that solar energy is slightly different than an electrical generator. For example, solar energy does not need any external power source to run. It is independent. The sunlight is converted directly into DC electricity with the help of a DC to AC electric generator. This makes it possible to use the same DC to AC electric generator to create the electricity needed to run home appliances.

Solar panels are made up of photovoltaic cells. These cells are made of crystals or silicon, and these crystals change the incoming electromagnetic field to DC power. Next, silicon is arranged in a wafer like structure where the incoming electrons are captured. These captured electrons are then mixed with oxygen, so that the electricity produced is AC current instead of solar energy.

If you are wondering how DC solar pv panels actually work, then you must know that the silicon crystals actually absorb the electrons and change their polarity into DC power. Then the process is reversed when the electrons are released. This creates an action which is called the photovoltaic effect. Once this process is started; the electricity produced is directly proportional to the input power. If the required amount of solar power is available then your electricity bill can come down dramatically. Of course, the more solar power you need, the more electricity you will pay.

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