photovoltaic modules or solar photovoltaic (sometimes called solar panels, although this term also includes other devices) are formed by a group of cells (photovoltaic cells) that produce electricity from light incident on them. The maximum power that can deliver a peak power module is called.
The photovoltaic panels are divided into:
· Monocrystalline: made up of sections of a single crystal silicon (recognizable by circular or hexagonal).
· Polycrystalline: when small particles are formed by crystallized.
· amorphous, when the silicon has not been crystallized.
Its effectiveness is greater the larger are the crystals, but also its weight, thickness and cost. The first performance can reach 20% while that of the past can not reach 1%, however its cost and weight is much lower.
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