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high concentration photovoltaics (HCPV)

High Concentration Photovoltaics (HCPV) is the CPV technology, Concentrated Photovoltaics, with the highest efficiency. All CPV variants - Low-CPV

, Medium-CPV and High-CPV - increase their efficiency by concentrating the sunlight to a greater or lesser extent using lenses or mirrors. LCPV solar cells (Low-CPV) have the lowest sunlight concentration of the various CPV processes. It ranges from two to one hundred times. For Medium-CPV solar cells, it is between one hundred and three hundred times, and for High Concentration Photovoltaics, the light concentration reaches one thousand times or more. This high concentration causes

thesolar cells

toreceive and convert much more light

, increasing their efficiency.At the same time, however, they also generate heat that must be dissipated to prevent destruction due to overheating. In order not to reduce the efficiency of HCPV solar cells through active cooling, heat dissipation must therefore be passive. The efficiency of HCPV solar cells is over 40 %. These values are achieved by multilayer solar cells in which each individual layer

absorbs specific wavelengths of light.

Photovoltaic system in CPV technology, photo: inhabitat.com

Photovoltaic system in CPV technology, photo: inhabitat.com

Such high-energy photovoltaic systems are optimised by the two-axis tracking of the solar modules in axial and horizontal direction, so that they always absorb the maximum amount of sunlight.

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Englisch: high concentration photovoltaics - HCPV
Updated at: 09.11.2019
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