Trina Solar 670W Vertex modules show remarkable mechanical performance at -40°C

Verified by a serial rigorous tests including non-uniform snow-load test, extreme DML test and extreme wind tunnel test, Trina Solar’s Vertex modules continue to show outstanding performance and excellent mechanical load reliability by passing another -40°C extreme low-temperature mechanical load test, demonstrating excellent ability to withstand extremely cold conditions.

Test setup (Image: Trina Solar)

Trina Solar’s modules are applied worldwide in various scenarios including those under extremely cold weather conditions, from Heilongjiang in China to the countries within the Arctic Circle such as Sweden and Norway, where the average winter temperature is as low as -40°C.

Thus, it is fundamental for Vertex modules to keep high reliability and high power generation efficiency under low-temperature conditions. The extremely low temperature is a major challenge to materials. The coefficient of thermal expansion varies among different materials and poses challenges to the connecting parts of the module. For those organic materials such as EVA, backsheet and junction boxes, the low temperature will reduce shock resistance ability of materials and affect the ability of photovoltaic cells to withstand mechanical load.

Temperature in the test environment (Image: Trina Solar) 

Trina Solar, together with the third-party organization CGC (China General Certification), according to the testing requirement of IEC TS 62782, conducted the mechanical reliability test to Vertex 670W modules under extreme low-temperature condition. The static mechanical load test of 5400Pa on the front side and 2400Pa on the back side was completed under extremely low temperature at -40°C and crossbeam screw installation conditions. The mechanical strength, resistant ability of materials and connection of trackers under extreme low temperature are simulated to test the reliability and performance of PV modules.

No variation in electroluminescence (EL) (Image: Trina Solar) 

The results show that the modules maintain good appearance without cracks, and the testing of insulation and wet leakage are both passed, with power attenuation of only 0.11%. This well proves that even under extreme low-temperature condition, Trina Solar’s 670W Vertex modules are safe and reliable, and guarantee excellent quality.

The 670W Vertex was launched in March 2021. Based on large 210mm silicon wafers, it features low voltage and high power. The module inherits non-destructive cutting and high-density interconnection, achieving maximum power of 670W with an efficiency of 21.6% and an increase in single string power by 40%, creating more room for reduction of the LCOE and BOS cost.

Vertex modules in extremely cold weather (Image: Trina Solar)

Based on the R&D and manufacturing experience gained during the past 24 years, Trina Solar has been able to lay solid foundations in technology and forged products with high efficiency and high reliability that possess world-class performance. No matter if it is stronger winds, snowstorms or extreme cold, Trina Solar’s Vertex modules exhibit flawless performance, combined with a customized service offering including product design and installation design for different application scenarios, thus providing a variety of total solutions for customers.


About Trina Solar (688599.SH)

Founded in 1997, Trina Solar is the world leading PV and smart energy total solution provider. The company engages in PV products R&D, manufacture and sales; PV projects development, EPC, O&M; smart micro-grid and multi-energy complementary systems development and sales, as well as energy cloud-platform operation. In 2018, Trina Solar launched its Energy IoT brand, established the Trina Energy IoT Industrial Development Alliance together with leading enterprises and research institutes in China and around the world, and founded the New Energy IoT Industrial Innovation Center. With these actions, Trina Solar is committed to working with its partners to build the energy IoT ecosystem and develop an innovation platform to explore New Energy IoT, as it strives to be a leader in global intelligent energy. In June 2020, Trina Solar listed on the STAR Market of Shanghai Stock Exchange. For more information, please visit


Media enquiries:

Trina Solar Europe
Michael Katz
Tel.: +49 89 122 8492 60

Do you want to opt out of Google Analytics on the he