500W solar module uses 210mm silicon wafers

March 02, 2020 //By Nick Flaherty
Trina Solar's Duomax V 500W bifacial double-glass solar module is based on 210mm large-size silicon wafer and monocrystalline PERC cell with efficiency up to 21 percent
Trina Solar's Duomax V 500W bifacial double-glass solar module is based on 210mm large-size silicon wafer and monocrystalline PERC cell with efficiency up to 21 percent

Trina Solar has launched a 500W bifacial double-glass solar module based on larger silicon wafers.

The Duomax V is based on the 210mm large-size silicon wafer and monocrystalline PERC cell and provides a power output of more than 500Wp and module efficiency up to 21 percent

According to preliminary estimates from large-scale ground mounted power stations in China's Heilongjiang province, compared with conventional 410W bifacial double-glass modules, the 500W module reduces the levelized cost of energy (LCOE) by 3 to 4 per cent. 

Trina Solar will formally start accepting orders in the second quarter of 2020 and expects to start mass production in the third quarter, with production capacity expected to exceed 5GW by the end of the year.

The solar module uses a multi-busbar design that integrates three-piece, non-destructive cutting and high-density packaging technologies. This reduces the resistance loss and significantly improves the anti-cracking, anti-hot spot performance of the modules while maximizing the use of space. In comparison,  if a traditional half-cut cell design were applied to 210mm ultra-large silicon wafers, the high current output characteristics of the modules could trigger system challenges, or cause the module to crack or run afoul of DC terminal limits.

The design of the solar module ensures that the output current, open circuit voltage and mechanical load of the modules comply with relevant downstream technical safety specifications and can seamlessly connect with the existing mainstream PV system design. 

Trina has already signed strategic cooperation agreements with POWERCHINA Jiangxi Electric Power Construction, China Energy Engineering Investment's Heilongjiang branch, Shouguang Power Investment Haobang New Energy, SEPCOIII Electric Power Construction and other power generation firms.

"Trina Solar has accumulated decades of experience in module design and manufacturing. We hope to drive the standardization of modules through our design and manufacturing advantages, which will not only benefit many segments in the industrial chain, but also enhances the design commonality of modules on the system side," said Yin Rongfang, vice general manager and executive vice president at Trina Solar.

"In addition to the product itself, a good module requires consideration of its matching capability with existing systems. Thanks to Trina Solar's experience in tracking systems, integrated solution and ground power station projects,


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