Yingli Solar Participates Actively in the International Test Standard for Bifacial Power Generation

PV bifacial technology rises gradually in recent years, and it quickly becomes the highest technology of mass production in the PV industry. Along with the bifacial power generation market gradually enlarging, industry constraints are also being emphasized. International test standards in the PV industry are basically about traditional mono-facial power generation PV devices, which are not applicable to evaluate the performance and unable to test the electrical parameters accurately of bifacial PV devices. The fact that there is no international standard for bifacial power generation leads to two disadvantages. Firstly, the nominal module output impact directly on the interests of both buyers and sellers, so they have lots of disagreements on how to indicate that figure. Secondly, ultimate nominal output of bifacial module will impact directly on the design of PV power plant.

Dr. Chirstos, who comes from TUV Rheinland which is an internationally recognized third-party certification body, leads the way of organizing the writing of the bifacial module test method earlier this year. The discussion group was formally established, and the official publishing of this test method will hopefully solve the complicated problem.

Yingli Solar, the leader in N-type bifacial technology, participated actively in the draft discussions and verification tests, and finally became one of the first companies who have finished the test draft. Recently, Yingli N-type PANDA BIFACIAL module became the first officially defined product for the TUV Rheinland bifacial module test method draft, and got the final test report.

Yingli Solar has a powerful voice in the field of bifacial power generation technology with 8 years' experience. In 2016, Yingli Solar, cooperated with China General Certification (CGC) center, prepared jointly the standard of PV Industry Association "Electrical Performance Testing Method for Bifacial Module". At the end of 2016, Yingli Solar received the bifacial module certification from CGC, and became the first and currently the only company which get this certification.