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 26, 2025
Carlos Rodriguez, Oktoviano Gandhi and Sun Huixuan examine the energy yield performance of different FPV system configurations.
June 24, 2025
Chinese solar manufacturing giant LONGi has signed an agreement with Indonesia’s Pertamina New & Renewable Energy to build a 1.4GW module assembly plant in West Java, Indonesia.
June 24, 2025
FRV has started commercial operations at its 55MW Masrik-1 PV project in Armenia, the largest to enter operation in the country.
June 24, 2025
The Chinese polysilicon industry could face a shortage by 2028, despite persistent overcapacity in recent years, according to polysilicon market analyst Bernreuter Research.
June 23, 2025
China notched up close to 100GW of new PV in May, in the processes surpassing a terawatt of cumulative installed capacity, figures show.
June 19, 2025
The China Enterprise Bankruptcy and Reorganization Case Information Network has published a notice regarding creditor claims for Suntech.

Subscribe to Newsletter

Upcoming Events

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
Media Partners, Solar Media Events
July 2, 2025
Bangkok, Thailand
Media Partners, Solar Media Events
September 2, 2025
Mexico City, Mexico