Performance Evaluation of Multi-Layer Semi-Transparent Photovoltaic System

Solar Photovoltaic is one of the most promising technologies used to harness electrical energy from solar energy. The major challenge of photovoltaic application, in addition to the limited efficiency, is the land required for installation. Around 28 m(2) area of land is required for a solar plant to generate a KWh of energy. The semi-transparent photovoltaics is an innovative technology that generates electricity and at the same time transmits light. Another possible solution towards conserving land space is the concept of multi-layering of the semi-transparent photovoltaic modules. The electrical performance is measured analytically with the help of MATLAB simulation software. The current-voltage and power-voltage characteristics for one layer and for the multi-layered system is studied for real-time values of irradiance and ambient temperature. The results reveal that transparency is one of the key parameters dictating the number of layers for optimum efficiency. The results indicate that an increase in the generation of electricity with the multi-layered photovoltaic system by 415 Wh when compared to conventional PV system, increase in the yield by 30% minimizes the land area for energy generation.