These days, modern living also includes environmentally friendly and efficient energy supply. Utilising the sun's energy is especially important in this regard. Photovoltaic systems "capture" the light and convert it into electrical energy.
This "capturing" is based on a physical process in which the sunlight shining on a module is converted into electrical energy.
If sunlight shines on a semiconductor (e.g. silicon or CIS), charge carrier pairs are generated. Positive and negative particles are created. These charge carriers are separated by an internal electrical field. This creates areas with a surplus of electrons and areas with a shortage of electrons. If you connect a consumer (such as a light bulb) between the plus and minus poles, a direct current (DC) flows.
When solar cells are interconnected electrically, we call this a solar module.
All the electrically connected modules together produce a solar generator. An inverter converts the direct current generated by the solar generator into alternating current (AC) and feeds this into the public grid – and there you have a "simple" photovoltaic system.
The quantity of energy fed to the grid is recorded by a feed meter.
The sun's energy fluctuates throughout the day and also according to the season, but regional factors, such as geographical location, shadows from trees, etc., also affect the quantity of energy that is generated.
What are the main components of a photovoltaic system?
Other advantages of a photovoltaic system:
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