A new world record in solar panel efficiency has been set at 25.44%

New world record
The new HereJunction (HJT) technology is considered by experts to be one of the most promising advancements in the field of photovoltaics. The newly achieved record efficiency of photovoltaic panels at 25.44% currently represents the highest efficiency value using crystalline silicon panel technology based on front and rear contact cells.

Renowned Professor Martin Green from the University of New South Wales in Sydney, whose laboratory held the efficiency record for solar cells for decades, stated that TrinaSolar's result demonstrates the potential of HJT solar technology, which is one of several technologies vying to become the dominant technology in photovoltaics during this decade.

"In the long term, it's primarily about efficiency, so even if some technologies are currently more expensive than others, it usually happens that once the photovoltaic industry scales up to mass production, costs tend to drop relatively quickly," said Green.

Perspesctive technology 
The panel with record-breaking efficiency utilizes the technology of high-performance n-type TOPAS HJT solar cells, pioneered by the company TrinaSolar. The cell integrates optimized thin-film passivation, fully passivated contact, and a progressive p-type emitter with variable RF frequency. The use of connectors with very low resistance has led to a significant breakthrough in the optical and electrical performance of the panel.

Gao Jifan, Chairman and CEO of TrinaSolar, stated in this context that the company will continue to increase its efforts in the development of passive solar technology to maintain its technological leadership.

"Our new world record in the efficiency of single-junction silicon-based (c-Si) solar panels demonstrates the strong technical potential of this technology. At the same time, it reinforces TrinaSolar's technological competitive advantage as a leading manufacturer of photovoltaic cells and panels," Jifan added.

Records in Efficiency
According to estimates by the consulting company InfoLink, HJT technology currently holds a relatively small market share — in 2024, it accounted for 7% of the capacity of high-efficiency solar cells, rising to 8% in 2025 and up to 9% of the total market by 2026. It is expected that in the next five years, TopCON-type cells will dominate the market.

Last year, TrinaSolar twice set a world record for the efficiency of TOPCon solar cells, achieving 25.90% in October and 26.58% in November. In December, TrinaSolar also set a world record for an n-type HJT solar cell, reaching an efficiency of 27.08%.