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Home > Information on photovoltaic energy > What is a photovoltaic system and how does it work?
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FAQ
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What is a photovoltaic system and how does it work?
 A photovoltaic system is a device that produces electric energy from solar radiation suitable to be used by men.
The system has the following elements (see graph):
- A solar generator, made up by a group of photovoltaic panels that capture the luminous radiation from the sun and turn it into low voltage 12 or 24 V direct current (DC).
- An accumulator that stores the energy produced by the generator and allows for electric current to be used when there is no sunlight or in cloudy days.
- A load regulator whose mission is to avoid overloads or excessive discharges onto the accumulator, which would permanently damage it and to ensure that the system always works at its maximum efficiency level.
- An inverter (optional) that transforms the continuous current of 12 or 24 V stored in the accumulator into 230 V. alternating current.
Once the electric energy is accumulated into the accumulator, there exist two options: connect a direct line between it and the installation or lamps and 12 or 24 Vcc consumption elements or transform the continuous current into 230 V direct current by means of an inverter.
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