How do Photovoltaic (PV) systems work?

Photovoltaic cells are made of special materials called semiconductors such as silicon, which is currently used most commonly. Basically, when light strikes the cell, a certain portion of it is absorbed within the semiconductor material. This means that the energy of the absorbed light is transferred to the semiconductor. The energy knocks electrons loose, allowing them to flow freely.

PV cells also all have one or more electric fields that act to force electrons freed by light absorption to flow in a certain direction. This flow of electrons is a current, and by placing metal contacts on the top and bottom of the PV cell, we can draw that current off for external use. This current, together with the cell's voltage (which is a result of its built-in electric field or fields), defines the power (or wattage) that the solar cell can produce.

Solar Photovoltaic Panels

190w High Performance Monocrystaline Module

The Stroma Solar PV panels offer high stability levels and weather resistance even under the most extreme conditions along with performance guarantees.

Features:

• Microgeneration Certification Scheme listed under certificate Number MCS PV0028/21
• High transmittance tempered glass
• Monocrystaline cells deliver high efficiencies
• Produced inline with Quality Certificates: ISO9001:2000, ISO14001:2004 & IEC 61215, TUV class 2

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