Recently, the good news from Changzhou National High-tech Zone: N-type double-sided double-glass high-efficiency modules independently developed by China have been mass-produced in Trina Solar Co., Ltd., and its 72-type modules have frontal power of up to 425W, the module conversion efficiency is as high as 20.7%. This indicates that it will bring lower system cost advantages to China and can effectively increase the revenue of photovoltaic system power generation.
The reporter learned that the small-area single-sided TOPCon battery with a laboratory efficiency of 25.8% achieved by the Fraunhofer Solar System Research Institute in Germany has set off a new climax in the research of photovoltaic academia and industrial passivation contact batteries. In 2015, Trina Solar's State Key Laboratory of Photovoltaic Science and Technology took the lead in conducting research on a mass-produced TOPCon battery based on a double-sided structure in China, and named the battery i-TOPCon.
According to relevant experts of Trina Solar Co., Ltd., the N-type double-sided double-glass module innovatively integrates the N-type i-TOPCon double-sided battery based on double-sided rate of more than 80%, multi-main grid, half-piece, double-glass, double-glass The surface and square single crystal design has low attenuation, low operating temperature and good low-light response characteristics, which can greatly improve the actual power generation performance of the module, and the back of the module can increase the power generation by 5% to 30%.
It is worth mentioning that before, Trina Solar prepared a laboratory battery with the highest frontal efficiency of 24.58% on an N-type substrate with an area of 244.62 square centimeters and was awarded by the German Hamelin Solar Energy Research Institute (ISFH). Testing laboratory certification. This is the 19th world record set by the State Key Laboratory of Trina Solar Photovoltaic Science and Technology in photovoltaic cell conversion efficiency and module output power.