Vol. 24, No. 3 (2025), IE25590 https://doi.org/10.24275/rmiq/IE25590

Using a composite coating (Cu/(TiO2) + (SiO2)/ Al2O2)to increase the efficiency of photovoltaic panels

 

Authors

R.khatir, K.kessairi, N.sellami, A.fidjah

Abstract

This research analyzes the effect of applying a heat-reflective coating to a 270W polycrystalline panel. Solar panels suffer reduced efficiency due to high temperatures, negatively impacting their performance, especially in high solar irradiance conditions. This is a fundamental step toward promoting solar energy as an economical source. The research aims to evaluate the effect of a heat-reflective coating technique (using a multilayer system (copper, a titanium dioxide/silicon dioxide middle layer, and an aluminum oxide protective layer), on improving panel efficiency by increasing energy production. The researchers followed an exploratory, experimental approach, comparing the performance of a standard panel to a coated panel by estimating irradiance, temperature, and power generation under varying climatic conditions. The results showed increased photovoltaic efficiency, approaching the panel's maximum power with an increase of 8% to 9%. The study highlights the practical potential of this technology in improving the efficiency of solar systems and expanding their application in environments with high temperatures and radiation, supporting the long-term development of clean energy solutions. It is an effective method for improving panel efficiency, paving the way for advanced solar energy technologies.

Keywords

Solar energy, Heat-reflective coating , Polycrystalline panel, Photovoltaic efficiency , Multilayer design.

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