On June 4th, TUV Rheinland officially released the LeTID standard at the 
Shanghai SNEC exhibition, making GCL System Integration (GCL SI) the first 
among five companies awarded with the LeTID certificate based on 2 PfG 
2689/04.19, an internal standard set by TUV Rheinland.

Photo - https://photos.prnasia.com/prnh/20190617/2499040-1
(Caption: GCL System Integration among first companies awarded with the LeTID 
test certificate from TUV Rheinland)

"Being one of the few solar cell and module producers with the technology of 
reducing and controlling LeTID in mass production, the certificate is a 
testimony that the cast mono modules produced by GCL SI possess excellent 
anti-LeTID performance," said Guo Qizhi, General Manager of Module R&D 
Department of GCL SI at the awarding ceremony.

Before 2 PfG 2689/04.19 was published, there was no internationally accepted 
LeTED test criteria. TUV Rheinland spent two years studying and testing modules 
with various technical roadmap, established the failure mechanism for LeTID and 
developed its widely representative internal test standard. The cast mono 
modules from GCL SI were among the first-batch in the world to receive 
certification due to the low cell oxygen and excellent LID & LeTID performance. 

According to its latest annual report, has heavily invested in technology R&D, 
leading to many breakthroughs in 2018 including the technologies for 
high-efficiency cast mono and bifacial cells, N-type TOPCon industrialization, 
MBB half-cult cell modules, high-efficiency bifacial double glass modules, 
high-efficiency shingled modules and the smart, automated manufacturing system.

The company has industrialized its mono PERC high-efficiency cell technology 
and achieved the industrial application of the P-type high-efficiency black 
silicon PERC cells with low degradation. Orders for the mass-produced mono 
high-efficiency series are expected to hit 1GW in total in 2019. GCL SI's 
modules and solutions have reached 40 countries and regions across the world. 
Driven by science and technology innovation, the company will continue to serve 
global customers with more efficient and reliable modules and best services.

SOURCE:  GCL System

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   Caption: GCL System Integration among first companies awarded with the LeTID 
test certificate from TUV Rheinland