Harnessing of solar energy requires solar photovoltaic units known as PV. Solar photovoltaic cells are the devices used for converting sunlight into electrical energy. It works by bypassing thermodynamic cycles and mechanical generators. This electricity can then be used for powering your homes and for other applications. The photovoltaic cells were first discovered and used in the 18th Century. The photovoltaic cells were initially used for space applications.
The photovoltaic tile is made up of a positive and negative silicon slices that are placed under a slice of glass. The protons of sunlight knock the neutrons off the silicon when they hit the PV cells. The silicon then attracts the free neutrons that are negatively charged. The free neutrons are further trapped by the magnetic field formed as result of the opposite fields. The small silicon wires catch the free neutrons. These free neutrons form an electric current when they are connected in a circuit.
This produces electricity in the form of Direct Current (DC). The DC electricity is further passed through an inverter to convert into an Alternating Current (AC). The AC current is used for power in our homes and other applications.
The advantage of using a PV cell is that it requires little or no maintenance. A typical PV cell has the capability to last up to 40 years with very minor maintenance. This feature is making solar energy amazingly popular power alternative.
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