Solar panel

Solar panel - one of the generators of alternative energy, turn the sun's rays into electricity. The simplest solar cell consists of a battery of solar cells and semiconductor photoelectric generator. Effects of solar cells based on the phenomenon of the internal photoeffect.
As a result of the solar panels generate direct current. Energy can be used directly by various devices, store in batteries for later use, or converted to alternating current voltage of 220 V.

Using solar energy has many advantages. This is a reliable, clean and quiet energy source. Initially, photovoltaic cells used in space satellites, but now their scope is far wider. For example, their use in remote areas where there is no centralized power. Also, solar panels are often used in telecommunication systems, calculators, buoys, etc.

The following basic types of solar PV systems:

     * Stand-alone
       Used in the absence of a connection to the mains. Usually used in conjunction with batteries (for energy storage).
     * Connection
       Solar panels are connected to a network of centralized power can be used to generate additional electricity. Excess energy is usually sold mains.
     * Reserve
       Rezervni solar panels are connected to networks of low quality and are used if the main source of nutrition or lack of power supply voltage.

At present, the production of solar panels is growing rapidly in various directions.
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