Recently, the signing ceremony of key projects in Wangdian Industrial Park of Jiaxing National High-tech Zone in Zhejiang Province was held in the first quarter of 2023. Twelve projects with a total investment of more than 5 billion yuan were signed at the meeting, including the 1GW thin film solar photovoltaic cell project.
Flat 1G W thin film solar photovoltaic cell project is invested and constructed by Flat Glass Group Co., Ltd., a photovoltaic glass giant. It is planned to invest in the construction of 1G W cadmium telluride thin film solar cell project in Wangdian Industrial Park to fill the gap of large-scale production of thin film solar cells in China.
According to reports, the total investment of the project is about 3 billion yuan, and the annual output value is expected to reach 3 billion yuan.
Assist PV main track for many years & nbsp; Founded in 1998,
Flat Glass is one of the largest manufacturers of photovoltaic glass sheets in China. In 2006, Follett became the first domestic enterprise to break the monopoly of international giants on the technology and market of photovoltaic glass through independent research and development, and successfully realized the localization of photovoltaic glass.
In recent years, with the prosperity of the photovoltaic industry, the photovoltaic glass industry has also ushered in a period of rapid development in recent years. According to the new energy micro report, the total daily melting volume of photovoltaic glass in China reached 75,400 tons in 2022, an increase of 61.63% over the same period last year! As one of the duopoly in the industry, Flat has a daily melting capacity of 16 thousand and 100 tons, accounting for 21.4% of the total capacity of the industry. After the listing of
Flat Glass, its performance has been rising year after year, but since 2021, its performance has also been increasing year after year, but by 2021-2022, the growth has gradually fatigue, even in the first three quarters of 2022, there is a negative growth. Therefore, the cross-border layout of the main photovoltaic track is a good measure to expand the development track and find new profit growth points.
In fact, over the years, Flat Glass has been deeply engaged in the photovoltaic glass industry, and has close and deep cooperation with leading photovoltaic module enterprises such as Longji Green Energy, Trina Solar Energy, Jingao Technology and Hanhua Group. After many years of watching and assisting on the side of the main
photovoltaic track, this time Follett finally jumped out and laid out the photovoltaic cell industry. Unexpectedly, the cadmium telluride thin film solar cell industry , which is currently called "promising but still considered to be in its infancy" , was chosen. The
rise of BIPV & nbsp; The prospect of cadmium telluride thin film solar cells is
promising. Thin film cells can be divided into cadmium telluride thin film cells, copper-based thin film cells (copper indium gallium selenide, copper zinc selenium sulfur), gallium arsenide laminated thin film (flexible) cells and perovskite cells. Cadmium telluride is the main technical route of thin film batteries and has been commercialized.
Due to the high technical and financial barriers to the production of cadmium telluride thin film solar cells, the number of enterprises in the market is small, even globally, there are not many enterprises engaged in the large-scale production of this type of cells.
However, with the support of national policies in recent years, the BIPV market continues to heat up, and thin film solar cells such as cadmium telluride have ushered in a new period of development opportunities. The real application (value)
of BIPV is in the building curtain wall. From last year to now, the demand explosion is also concentrated in the curtain wall. The core of the curtain wall is the thin film power generation module, and the core of the thin film power generation module must be inseparable from the cadmium telluride power generation technology.
Data show that cadmium telluride thin film solar cell, referred to as CdTe cell, is a thin film solar cell based on the heterojunction of p-type CdTe and n-type CdS, which has the advantages of high light absorption, high conversion efficiency, stable cell performance and simpl e cell structure.
In addition, cadmium telluride thin film solar cells are significantly cheaper to produce than crystalline silicon and other materials in solar cell technology. Standard technology, low energy consumption, recyclable after the end of the life cycle, strong and weak light can generate electricity, the higher the temperature, the better the performance and other advantages, also make it stand out from the major battery technologies.
With its outstanding advantages, cadmium telluride thin film solar cells are favored by many building integrated photovoltaic (BIPV) markets.
BIPV photovoltaic modules need to be combined with the wall of the building, or directly replace the curtain wall function. The film can be customized according to the needs of the building, which is more aesthetic and coordinated.
However, at present, only a small number of domestic enterprises, such as Longyan Energy Technology, Chengdu China Building Materials Photoelectric Materials and Zhongshan Ruike New Energy, are engaged in the industrialization research and development and production of cadmium telluride batteries. In addition, data show that only First Solar in the United States is produced on a large scale abroad.
In addition, last September, the U.S. Department of Energy (DOE) announced the establishment of a $20 million "Cadmium Telluride Development Alliance" to expand domestic production of cadmium telluride (CdTe) photovoltaic materials and modules to reduce the cost of CdTe solar cells, improve efficiency and develop new markets for solar cell products. The goal is to achieve a CdTe solar cell efficiency of more than 24% and a module cost of less than $0.20/watt by 2025, and a CdTe solar cell efficiency of more than 26% and a module cost of less than $0.15/watt by 2030.
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