Trina Solar (688599.SS) has achieved a groundbreaking world record for solar module conversion efficiency, the company announced on Monday. Laboratory tests certified by Germany’s Fraunhofer CalLab revealed that Trina’s large surface area n-type fully passivated heterojunction (HJT) modules reached an efficiency of 25.44%.
Passivation technology addresses surface defects in solar cells, while efficiency measures the percentage of solar energy converted into usable electricity. Higher efficiency can lower costs and reduce the space required for solar installations.
Professor Martin Green of the University of New South Wales highlighted the potential of HJT as a leading next-generation solar technology. “In the long run, it’s all about efficiency,” Green said. “As the industry adopts new technologies, costs typically decline rapidly.”
Trina’s chairman and CEO, Gao Jifan, emphasized the company’s commitment to advancing passivated solar technologies to retain a leadership position in the sector.
Although HJT currently represents a smaller share of the market, with solar consultancy InfoLink estimating it at 7% of high-efficiency solar cell capacity in 2024, it is steadily growing. Projections place its market share at 9% by 2026, while TopCON (tunnel oxide passivated contact) cells are expected to dominate the market in the near term.
This achievement also marks a milestone in photoelectric conversion efficiency for single-crystalline silicon solar modules, underscoring the increasing competitiveness of HJT in solar technology advancements.
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