The proportion of dual-glass modules has increased year by year. According to CPIA data, the market share of single-sided glass photovoltaic modules in my country in 2020 is about 70%, and the market share of double-sided glass photovoltaic modules is about 30%. Due to the advantages of high photoelectric conversion efficiency and slow attenuation of double glass modules, it is expected that double glass modules will gradually become the mainstream of the market during the "14th Five-Year Plan" period, which also means that the demand for photovoltaic glass will increase significantly.
The proportion of large-size silicon wafers has gradually increased. At present, there are many silicon wafer sizes on the market, mainly smaller than 166mm, 166mm, 182mm, 210mm, etc. According to CPIA data, silicon wafers smaller than 166mm will be the mainstream market in 2020. However, since large-size silicon wafers can reduce the manufacturing cost of silicon wafers, it is expected that silicon wafers will develop to larger sizes in the future, and the larger the silicon wafers size, the required photovoltaic The more glass.
The low-thickness photovoltaic glass will be the future trend. At present, the thickness of the photovoltaic glass on the market is divided into less than 2.5mm, 2.8mm, 3.2mm and so on. According to CPIA data, the market share of 3.2mm photovoltaic glass modules is the highest in 2020, about 70%, while the market share of photovoltaic glass is less than 2.5mm, which is mainly used for double glass modules, is less than 30%. The lower thickness of 2.5mm photovoltaic glass has many advantages, including high light transmittance, which can improve photoelectric conversion efficiency, and lightweight, which can reduce transportation and installation costs. It is expected to become the main trend in the future.
