The new generation of rectangular silicon wafers defines an important technological direction for the industry, offering increased module power, optimized container utilization and reduced system costs. In order to address challenges presented by the current variation in dimensions of rectangular silicon wafer modules, which negatively impacts the supply chain, results in material wastage, and creates application difficulties in customer system designs, it is deemed imperative that dimension standardization of such modules is introduced.

After extensive dialogue, representatives from nine leading module manufacturers – Canadian Solar, Risen Energy, JA Solar, JinkoSolar, LONGi, TW Solar, Trina Solar, Astronergy and  DAS Solar – have reached a consensus on such standard dimensions as follows:

Module size: 2382mm*1134mm

Module long side vertical hole distance: 400mm/790mm/1400mm

Furthermore, it is proposed that current and future designs for 182 and 210 series modules should adhere to the specifications outlined in the “T/CPIA 0003-2022 Technical Specification for Crystalline Silicon Terrestrial Photovoltaic Module Dimensions and Mounting Holes” document issued by the China Photovoltaic Industry Association (CPIA), as well as to existing agreed industry dimensions. Each manufacturer may work within these dimension ranges based on its individual circumstances, in order to meet the diverse needs of its customers.

The nine companies listed jointly advocate and promote the acceptance of the above standardized dimensions by other manufacturers in the industry and the incorporation of each set of rectangular silicon wafer module dimensions into the industry standards published by the CPIA. Additionally, the companies have agreed on the establishment of the “Photovoltaic Module Dimension Standardization Seminar Group”, in order to facilitate regular communication and collaboration on the advancement of dimension standardization for other variants of rectangular silicon wafer modules and the promotion of the ongoing healthy development of the photovoltaic industry.