Concentrated Photovoltaic (CPV) is a technology that harnesses solar power with enhanced efficiency by focusing sunlight onto small, highly efficient photovoltaic cells using lenses or mirrors. This method significantly intensifies the incident solar radiation, achieving a higher energy output per cell than traditional photovoltaic systems. CPV systems are typically employed in regions with high direct solar irradiation, utilising dual-axis tracking mechanisms to maintain optimal alignment with the sun, thereby maximising energy capture.
The design of CPV units integrates advanced optical technologies to concentrate sunlight up to several hundred times its normal intensity. These systems often use multi-junction solar cells, capable of converting multiple wavelengths of light, which further increases their efficiency compared to single-junction cells used in standard photovoltaic panels. The enhanced efficiency of CPV systems not only reduces the area required for solar installations but also diminishes the material usage per unit of generated power.
Despite their high efficiency, CPV installations are constrained by the need for direct sunlight, limiting their geographical deployment to areas with low cloud cover and high solar irradiance. Economic and practical viability of CPV technology continues to improve with advancements in material sciences and photovoltaic cell technology, promising a significant role in the future landscape of renewable energy solutions.
