7 Leading Photovoltaic Companies Establish The New M10 Silicon Wafer
Seven companies, including LONGi, Jinko Solar, JA Solar, and Canadian Solar what are sponsors and partners of CISOLAR&SEF 2020, jointly released the M10 monocrystalline silicon wafer standard size (182mm x 182mm). It is reported in Longi Solar and JA Solar sites.
Over recent years, with the continuous development of technology and production scale, photovoltaics has become one of the world’s most competitive sources of power. With this rapid progress, leading companies are actively innovating and developing multiple technology streams to enhance the performance of photovoltaic solar products. Amongst these, high-power modules based on larger size silicon wafers has become one of the main directions of innovation for companies in both the upstream and downstream sectors of the industry.
With the absence of a common standard, however, companies have adopted wafers of varying sizes, resulting in an increase in manufacturing costs throughout the entire industry supply chain, including wafers, cells, modules, and auxiliary materials such as glass. This situation has complicated customers’ selection processes, the installation of photovoltaic systems, and coordination between the industry’s upstream and downstream sectors.
To effectively address these issues and accelerate the industry’s efficient and standardized development, LONGi is jointly advocating the establishment of a silicon wafer standard – M10 – with a geometric size of 182mm x 182mm, and its inclusion in the specification files of the industry’s standards organization.
“We are confident that this will optimize the use of resources and promote the photovoltaic industry’s continued healthy development”, says in JA Solar.
According to Longi Solar, comparing using a 182mm (M10) wafer module with front power up to 540W with a 500W module using a 210mm (G12) wafer, the advantages are obvious:
The module power is higher, the space of the container is more fully utilized, and the manual installation cost of the module is lower.
Module efficiency is higher, and the G12 module cell with 3 cuts and separate long solder ribbon will cause loss of efficiency.
BOS cost is lower. The current and power of the M10 module are higher than that of the G12 module. Therefore, string power is higher. The advantage on the system side is very obvious. According to calculations: an M10 module can save at least $0.35 cents/W of BOS cost when using a fixed rack compared to a G12 module, and at least $0.7 cents/W of BOS cost when using a tracker.
Product manufacturing costs are lower, cell efficiency and yield of the M10 higher, whereas the G12 still has a big problem; on the one hand, the design of M10 on the module side is simple: on the other, the power is higher, and the cost of the module is significantly lower.
“It is not a transitional product and will end the wafer size dispute. This is sufficient reason for choosing the 182mm wafer for new production capacity”, said in Longi Solar.
Remind that Longi Solar and JA Solar are sponsors and partners of CISOLAR&SEF – 9th Solar Energy Conference and Trade Show, which will be held on October 20-22 in Kyiv.
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