#China #Shanghai #LONGi #Solar Modules #HIBC Technology

LONGi Unveils HIBC Technology and 700W Solar Module at SNEC 2025

On June 11, 2025, LONGi made headlines at the 18th International Solar Photovoltaic Exhibition (SNEC) in Shanghai by officially launching its impressive HIBC technology and a groundbreaking 700W solar module. This event marks a significant milestone in solar technology, as the HIBC technology achieved a world-first power output exceeding 700W while maintaining a standard size of 2382mm by 1134mm. Not only that, but the mass-produced modules also boast an efficiency nearing 26%, ushering in the era of photovoltaic modules that exceed 25% efficiency.

The Highlights of HIBC Technology

The HIBC (Hybrid Interdigitated Back-Contact) technology stands out due to its unique combination of HJT (Heterojunction with Intrinsic Thin Layer) and BC (Back Contact) characteristics. This innovation realizes large-scale mass production of solar modules for the first time globally. At the press conference, LONGi's Chairman, Zhong Baoshen, described the release as another technological breakthrough for the company, emphasizing that improving power output in the same area directly translates to greater customer value.

It is noteworthy that just last April, the Institute for Solar Energy Research Hamelin (ISFH) in Germany certified that the conversion efficiency of HIBC cells reached a remarkable 27.81%, setting a new world record. Zhong stated that this efficiency growth is indicative of the industry’s progression, as LONGi aims to push the boundaries of solar technology.

HIBC Technology's Impact on Solar Modules

LONGi's newly launched 700W modules not only achieve a higher power output but also boast a power density exceeding 259W/m², making them the most efficient photovoltaic products available today. By comparing this module to other 700W offerings in the industry, it is apparent that LONGi's module is smaller in area by 0.4m² yet delivers a power density that is 34W/m² higher, effectively challenging the conventional belief that larger module sizes equate to higher power outputs. With this innovation, LONGi introduces the concept of 'power density' to the market, paving the way for more efficient land and roof utilization as the demand for space grows.

Zhong further elaborated on the importance of this development, explaining that the HIBC technology empowers modules to reach new heights in efficiency, maintaining reliability and maximizing value—a crucial consideration as the demand for solar solutions evolves.

Leading the Way in Photovoltaic Efficiency

Historically, the efficiency of photovoltaic modules has evolved with technology: PERC modules achieved efficiencies of above 22%, while TOPCon technology introduced levels of around 23%. The introduction of BC technology has opened avenues for even greater efficiency, ultimately leading to the current innovations driven by HIBC. Zhong believes that the recent advancements demonstrate the vast untapped potential in enhancing BC technology, suggesting that the pathway to higher efficiency is still expansive.

Esteemed solar energy expert, Professor Martin Green of the University of New South Wales, recognized LONGi’s strides in advancing BC technology, noting that LONGi's HIBC technology earned the top ranking in recent global solar cell efficiency updates.

The Path Forward for LONGi and the BC Ecosystem

In tandem with the launch, LONGi highlighted its progress in building the BC ecosystem, a project that started in 2023. By May 2025, the company had engaged with 191 global partners and established 55 collaborations across seven major fields, generating initial revenues of approximately 1.95 billion yuan. At SNEC, LONGi unveiled the STAR Innovation Ecological Collaboration Platform, designed to cultivate a global innovation ecosystem centered on carbon neutrality.

As LONGi progresses, the company aims to deepen partnerships that further amplify the value of BC technology in various sectors. Zhong reaffirmed LONGi's commitment to fostering sustainable practices and shaping a solar energy landscape that is both profitable and environmentally friendly. This drive encapsulates LONGi's objective of promoting the widespread adoption of innovative photovoltaic technology that meets the growing energy needs of industries and households alike.

In conclusion, LONGi’s release of the HIBC technology and 700W solar module premiered a defining moment in solar energy, highlighting the company’s unremitting dedication to lead in technological advancements while propelling the solar industry towards a sustainable and productive future.