Trina Solar Unveils New n-type i-TOPCon Advanced Technology with 26% Efficiency

Highlights :

  • Next year onwards, the Vertex n-type series will be upgraded, with the most powerful module in the series generating more than 700 W, the firm announced.
Trina Solar Unveils New n-type i-TOPCon Advanced Technology with 26% Efficiency Global Cleantech Firm Trina Solar Is Back On BNEF's Tier 1 List

Trina Solar, a firm that delves into solar energy innovation, has unveiled its new n-type i-TOPCon advanced technology.

The technology was given its first public viewing on the first day of the International Solar Photovoltaic Power Generation and Smart Energy Conference and Exhibition in Shanghai on May 24, 2023. Next year onwards, the Vertex n-type series will be upgraded, with the most powerful module in the series generating more than 700 W, the firm announced.

At the exhibition, Trina Solar also announced that work on Phase II of its 15 GW monocrystalline silicon ingot project at its factory in Xining, Qinghai Province, has begun. Work has also begun on its 10 GW n-type high-efficiency cell and 10 GW n-type module project in Yangzhou, Jiangsu Province. In addition, Trina Solar has taken the lead in establishing a net-zero system by initiating the Environmental Product Declaration and carbon footprint certification for its Vertex N modules.

N-type i-TOPCon advanced cells achieves efficiency of 26% in mass production and 700W+ module power

At the launch, Dr Chen Yifeng, Associate Vice President of Trina Solar, underlined the importance of four innovations: the 210R rectangular cell, the selective boron emitter, the backside microstructure reflector, and the highly doped TOPCon structure with PECVD. These have enabled new-generation i-TOPCon advanced technology to deliver potential production efficiency of 26%, with module power output of up to 700W.

Typically for utility power plants, the Vertex N modules with power up to 700W further reduce LCOE and will come to mass production next year.

Trina Solar says it is a pioneer in integrating rectangular cell technology and n-type i-TOPCon advanced technology, providing tailored solutions for various settings. Vertex N 605W modules, designed for power stations in complex terrain and C&I solar stations, feature optimized module dimensions that maximize the use of tracker length, with a 13% increase in installation capacity for single-row tracker systems. These modules also maximize the use of container space, the utilization rate reaching 98.5% in a 40-foot-high cube (40HC) container, resulting in a 12.4% reduction in logistics costs and lower BOS costs for customers.

Vertex S+ modules deliver power of 450W. Compared with regular n-type residential modules in the industry, these modules provide 5.88% more installation capacity for rooftops of the same area.

In the future, with the application of front-side full passivation contact cell technology, the mass production efficiency of Trina Solar’s n-type cells with i-TOPCon Ultra technology is forecast to exceed 27%. Furthermore, with the implementation of i-TOPCon tandem technology, cell efficiency is forecast to surpass 30%. In addition, Trina Solar’s Vertex n-type modules have drawn the accolades of third-party organizations such as China General Certification, RETC and PVEL for their reliability.

40 GW n-type cell will unleash vertical integration to ensure global delivery

The Trina Solar projects in Qinghai Province and Jiangsu Province lay a foundation for continuous material supply for the company’s n-type modules and ensure worry-free product delivery, says Trina. 

By the end of the year, Trina Solar’s module production capacity is forecast to reach 95 GW while cell production capacity 75 GW, with 40 GW dedicated to n-type cells.

A few days back,  the firm has announced joining fellow Chinese solar giants Longi and Jinko Solar to announce major new expansion plans. In a recent announcement, Trina Solar said it will invest around CNY8.7 billion (USD1.2 billion) in a new plant and related facilities in China’s Sichuan Province.

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