On day 3 of the 4-day TaiyangNews High Efficiency Solar Technologies 2024 Conference, Trinasolar’s Product Manager Lukas Ye talked about the advantages and growth of its industrial tunnel oxide passivated contacts or i-TOPCon technology.
The tier I Chinese manufacturer recently announced achieving 26.58% of ultra highest solar cell efficiency for its i-TOPCon cell, claiming it to be the 1st time that n-TOPCon cell efficiency exceeded 26% on commercial size formats (see Trinasolar Achieves 26.58% ‘Record’ N-Type TOPCon Solar Cell Efficiency).
Ye said that this efficiency is based on n-type 210R wafers and is ready for industrialization in the form of its flagship Vertex series. Trinasolar says this paves the way for the company to target to further improve Vertex n module power by 30 W to 40 W using its i-TOPCon Ultra technology, reaching up to 760 W output for its largest modules for the utility segment.
Drawing a comparison with TBC, Ye presented case studies to show that its i-TOPCon Ultra excels in low irradiance conditions, achieving 3.2% higher energy yield, and higher bifaciality. Calling it i-TOPCON 2.0, Ye said, the company plans to have 10 GW annual production capacity from Q2 2025.
Going forward, under its i-TOPCon technology roadmap, Trinasolar will continue to stick to it as the technology of choice long into the future. Between 2025 and 2029, it will target to achieve a laboratory cell efficiency of over 27% for i-TOPCon Ultra and a module efficiency exceeding 25% using fully passivated contact cell efficiency. From 2030 onward, it plans to release i-TOPCon with perovskite in tandem, aiming for over 30% cell and 28% module efficiency.
For more presentation videos and conference summaries for all 4 days of the TaiyangNews High Efficiency Solar Technologies 2024 Conference, click here for days 1 and 2, and here for days 3 and 4.