JA Solar has announced a major breakthrough in back contact solar cell technology after its latest BC solar cell achieved a certified conversion efficiency of 28.2%, setting a new industry record for BC cell performance.
The result was independently certified by TÜV Rheinland and marks a significant milestone for the company’s HyperGen technology platform, which is being jointly developed with Golden Stone Energy.
According to Golden Stone Energy, the record-breaking cell is based on Hybrid BC technology, also known as HBC. The technology builds on conventional BC cell architecture by integrating heterojunction passivation with tunnelling oxide and polysilicon structures.
The company said the approach combines the strengths of TOPCon, heterojunction and BC technologies into a single cell structure, delivering higher conversion efficiencies, lower manufacturing costs and improved process stability.
The first batch of HBC cells achieving a certified efficiency of 28.2% is being viewed as an important engineering validation milestone for the technology, particularly as the global solar industry intensifies efforts to commercialise next generation high efficiency photovoltaic products.
Author: Bryan Groenendaal
May 20, 2026
April 18, 2026
April 23, 2026
May 20, 2026
April 22, 2026
May 10, 2026
Disclaimer | Privacy Policy | Terms & Conditions | Returns Policy | Intellectual Property | Cookie Policy
© 2019 – 2026 GBA Digital Media Group. All Rights Reserved | Site Credit
Copyright Green Building Africa 2026.
Subscribe to our weekly Top 5 Stories
"*" indicates required fields
You must be logged in to post a comment.