EVA photovoltaic films, also known as EVA films, are widely used in the field of solar photovoltaic. Here are its main advantages and disadvantages:
Advantages:
Good adhesion and sealing performance: EVA photovoltaic film has good adhesion and sealing performance, and can effectively adhere to solar panels, backplates and other components to form a complete photovoltaic component.
High-efficiency photoelectric conversion function: EVA photovoltaic film has a high-efficiency photoelectric conversion function, which can directly convert sunlight into electricity and improve the power generation efficiency of photovoltaic modules.
Good weather resistance: EVA photovoltaic film has the characteristics of high temperature resistance, high humidity, ultraviolet light, etc., and can maintain stability in various harsh environments.
Good light transmittance: EVA photovoltaic films have high light transmittance, which can reduce light loss during transmission and improve the power generation efficiency of photovoltaic modules.
Easy to process and install: EVA photovoltaic films have good flexibility and processability, can adapt to photovoltaic modules of various shapes and size, and are easy to install and operate.
Disadvantages:
Poor ultraviolet resistance: EVA photovoltaic films have relatively poor ultraviolet resistance, and long-term exposure to ultraviolet light may lead to performance degradation and aging. Therefore, when installing EVA photovoltaic modules, some measures usually need to be taken to protect it from direct ultraviolet radiation.
High permeability: EVA photovoltaic films have high permeability. If the packaging process is improper or water seepage may occur after long-term use, causing internal short circuits or damage to the photovoltaic modules.
Poor anti-PID performance: PID In photovoltaic modules, the anti-PID performance of EVA photovoltaic films is relatively poor, which may lead to a decrease in photovoltaic module power and a shortened service life. This is a common failure mode.
Higher price: EVA photovoltaic film may be more expensive than some other materials, increasing the cost of photovoltaic modules.
To sum up, EVA photovoltaic films have many advantages, but they also have some disadvantages. When choosing to use EVA photovoltaic films, specific application scenarios and needs need to be comprehensively considered.