Application of EVA transparent film in photovoltaic modules: key material for improving efficiency
From the perspective of optical performance, EVA transparent film has extremely high light transmittance, which allows more sunlight to penetrate into photovoltaic cells and reduce light loss. Its light transmittance can usually reach more than 90%, and it can maintain good light transmittance under sunlight of different bands, which enables photovoltaic cells to absorb more light energy and convert it into electrical energy. At the same time, EVA transparent film also has a certain anti-reflection effect. Through special surface treatment, it reduces the reflection of light on the surface of the film, further improving the photoelectric conversion efficiency of photovoltaic modules.
In terms of thermal and bonding properties, after heating and curing, EVA transparent film can be closely combined with photovoltaic cells, glass and backplane to form a stable structure. This good adhesion can not only protect the cells from external environmental erosion, but also effectively conduct heat to prevent the efficiency of the cells from being reduced due to local overheating. In addition, EVA transparent film has excellent weather resistance and can maintain stable performance for a long time in complex environments such as high and low temperatures and ultraviolet rays, thus extending the service life of photovoltaic modules.
In actual production applications, the power generation efficiency of photovoltaic modules encapsulated with EVA transparent film is significantly improved compared with traditional encapsulation materials. According to industry data, the conversion efficiency of photovoltaic modules can be increased by 1%-2% after using high-performance EVA transparent film. In large-scale power stations, this improvement can bring about a considerable increase in power generation.
With the continuous development of photovoltaic technology, EVA transparent film is also continuously innovating. In the future, new EVA transparent films with higher light transmittance and stronger weather resistance will further promote the improvement of photovoltaic module efficiency and provide strong support for the development of clean energy.
