Trina Solar improves efficiency of Vertex N series of modules by 0.3%

Facebook
Twitter
LinkedIn
Reddit
Email
Trina Solar's Vertex modules at Voltalia’s project site in Karavasta, Albania.
Trina Solar’s Vertex modules at Voltalia’s project site in Karavasta, Albania. Image: Voltalia

Chinese solar manufacturer Trina Solar has improved the power conversion efficiency of its Vertex N series of modules, with Vertex N 720W+ modules now boasting an efficiency of 23.2%.

The figure improves upon the previous conversion efficiency figure of 22.9%. The company also announced that it had improved the performance of its Vertex N 625W+ modules, increasing their conversion efficiency from 22.8% to 23.1%.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

The products are tunnel oxide passivated contact (TOPCon) modules, of which the company started commercial production in August 2023. In the seven months since, Trina Solar has deployed the modules across a number of sectors, including a 2GW utility-scale project in China, and specialised TOPCon modules for use in the commercial and industrial sector.

The Vertex N 700W+ modules had a conversion efficiency of 22.5% when they launched, and the company noted that the latest efficiency improvements are down to a process of “laser induced firing” used in the manufacturing process.

Laser processes have been used in cell manufacturing for years, with research from the Fraunhofer Institute for Solar Energy Systems finding that the use of ‘laser-enhanced contact optimisation’ could improve the power conversion efficiency of TOPCon cells by as much as 0.6% in 2022. This process replaces the conveyor belt furnace process that is typically used to build cells, where the high temperatures required, above 700 degrees Celsius, can lower the voltage of the completed cell, and impede its operating efficiency.

The news is Trina Solar’s latest innovation for its Vertex range, following the modules’ receipt of a carbon footprint certification from US safety verifier UL Solutions earlier this week, as the company seeks to optimise its operations, and minimise its environmental impacts.

10 March 2026
Frankfurt, Germany
The conference will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing out to 2030 and beyond.

Read Next

Premium
June 9, 2025
N-type polysilicon prices have dropped to RMB34,000/ton as the project installation rush ends, putting cost pressure on the industrial chain.
June 5, 2025
Investment in clean energy and grids will reach US$2.2 trillion in 2025, double the expected investment into fossil fuels this year, according to data from the International Energy Agency (IEA).
June 4, 2025
Chinese PV module manufacturer Haitai Solar has announced the termination of a 10GW TOPCon and the reallocation of investment to fund an Indonesian facility.
June 2, 2025
Arctech has partnered with ACME Cleantech Solutions to provide 175MW worth of solar trackers for an upcoming facility in Duqm, Oman.
June 2, 2025
A new manufacturing method has produced tandem perovskite-silicon tandem solar cells with a conversion efficiency of 27.8%.
June 2, 2025
The LECO process used in the production of TOPCon solar cells could increase their resistances by 'orders of magnitude', per new research.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
June 17, 2025
Napa, USA
Upcoming Webinars
June 30, 2025
10am PST / 6pm BST
Solar Media Events
July 1, 2025
London, UK
Solar Media Events
July 1, 2025
London, UK
Solar Media Events
September 16, 2025
Athens, Greece