Solar cells convert sunlight directly into electricity. This process of light converting in electricity is called the photovoltaic effect. Therefore photovoltaic cells not be confused with other systems. They are marked with the symbol PV. Solar panels are used separately or related to batteries to nourish with power independent consumers or for power generation what is delivered in the public network. A photovoltaic system not only contains panels, also batteries, invertors, and many other devices. The average duration of use of a photovoltaic solar panel is approximately 20-25 years.

ACCESSORIES Inverters Controllers Batteries Cables

The first cells had 4% efficiency and were produced in 1950. Today the third generation of photovoltaic panels cell contains a 20% efficiency and hope few years to grow.
Solar cells before were often used for personal computers and for watches. It is used supplying artificial satellites, space station, distant outposts.
In our days photovoltaic panels entered [...]

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