On April 27, 2025, under widespread industry attention, the China Electricity Council, the China Certification International Group (CEC), 

TÜV Rheinland Group, as well as renowned enterprises such as LONGi Green Energy Technology Co., Ltd. and Aiko Solar Co., Ltd., 

gathered together to jointly release the "White Paper on the Development of Back Contact (BC) Cell Technology". 

This release event is of great significance, marking a new stage in the development of BC cell technology and also providing key 

guidance for the future development of the photovoltaic industry.

In recent years, the global demand for clean energy has been continuously rising, and the photovoltaic industry, 

as an important field of new energy, has received much attention. As a representative of high-efficiency photovoltaic cells, 

BC cell technology has become the focus of the industry due to its significant advantages in conversion efficiency and stability. 

However, issues such as high technical thresholds and persistently high costs have to some extent restricted its large-scale popularization and application. 

The white paper released this time systematically combs through the development history of BC cell technology, deeply analyzes the existing problems, 

and puts forward forward-looking viewpoints on the future technical paths and solutions, providing extremely valuable references for industry participants.