LONGi Unveils 700W Solar Module Powered by HIBC Technology

Solar technology giant LONGi has made an official release of its Photovoltaic innovation Hybrid Interdigitated Back-Contact (HIBC) technology at the 18th International Solar Photovoltaic Exhibition (SNEC) in Shanghai. 

This next-generation technology has enabled the mass production of solar modules with a record-breaking output of over 700W – one of the highest ever achieved for a standard-size panel.

LONGi’s new module, measuring 2382mm by 1134mm, achieves a power density of 259W/sqm, and a module efficiency of 25.9 percent. This positions it among the most efficient industrial photovoltaic products available globally. 

Certified by the renowned Institute for Solar Energy Research Hamelin (ISFH) in Germany, the HIBC cells are said to have reached a world-record conversion efficiency of 27.81 percent earlier this year.

HIBC – Combination of HJT and BC

HIBC is a fusion of high-low temperature composite passivated back contact technology, combining the advantages of heterojunction (HJT) and back contact (BC) architectures. This synergy allows for large-scale, high-efficiency production, marking a turning point for the commercial viability of ultra-efficient solar modules.

“Efficiency is not just a technical achievement — it’s the foundation of value in photovoltaic technology,” said Zhong Baoshen, Chairman of LONGi. “Unlike solutions that increase power through larger panel sizes, HIBC technology offers improved efficiency without compromising on quality or reliability.”

One of the standout advantages of LONGi’s 700W module is its compact form. Compared to similarly powerful modules on the market, which often exceed 1300mm in width, LONGi’s claims that its product maintains higher performance in a smaller footprint – a key benefit as land and rooftop space become increasingly limited.

The innovation also addresses long-standing industry challenges. By boosting the cell screen occupation ratio from 93.2 percent to 95.1 percent, the HIBC modules significantly enhance light absorption while maintaining structural integrity.

LONGi has been quite active recently with its innovations as also evident in its new EcoLife series, launched at the Intersolar exhibition in May. Built on HIBC technology, the series achieves a mass-produced cell efficiency of 27.3 percent and module efficiency exceeding 25 percent, signaling a new era of commercially available ultra-efficient solar solutions.