The Chinese manufacturer has launched its third generation Vertex S+ G3 double-glazed TOPCon modules for residential and commercial applications. The new products feature an improved module architecture and a temperature coefficient of -0.26% per C.
Chinese PV module manufacturer Trina Solar has unveiled a new TOPCon double-glazed module for residential and commercial applications at the trade fair Key Energy fair inside RiminiItaly.
“The launch marks the third generation of the company’s TOPCon technology, which had already been introduced for larger utility-scale modules, namely the NEG19 and NEG21 series,” said Antonino Coccia, strategic key account manager at Trina Solar. pv magazine. “We have made a series of improvements not only in the cell technology, but also in the overall module architecture. The focus has been on optimizing the voltage-to-current ratio to improve performance at the system level.”
“In addition to a further increase in module efficiency, the new generation also introduces improvements in degradation coefficients,” says Coccia. “Both annual and temperature-related degradation rates have been reduced. In terms of solar cell design, there are no radical changes compared to the previous Vertex generation. Instead, we have made incremental refinements year after year. The most important improvements lie not in the cell itself, but in the overall construction and architecture of the module.”
Trina Solar offers five versions of the Vertex S+ G3 modules, with output power ranging from 465 W to 495 W and a power conversion efficiency between 23.3% and 24.3%. The no-load voltage ranges from 37.1 V to 37.9 V, while the short-circuit current is between 15.96 A and 16.08 A.
The panels measure 1,762 mm x 1,134 mm x 30 mm and weigh 21.1 kg.
They can be used in systems with a maximum voltage of 1,500 V and are equipped with connection boxes with IP68 classification. The temperature coefficient is -0.26% per C, with an operating temperature range of -40 C to 85 C.
The modules are covered by a 15-year product warranty and a 30-year performance warranty. Degradation in the first year is specified at less than 1.0%, with output after 30 years guaranteed at no less than 88.5% of rated power.
The Vertex S+ G3 is part of a broader product portfolio that Trina Solar wants to roll out in the short term. It includes a 480W Vertex S+ G3 Full Black module, aimed at residential roof applications, and a 485W Vertex S+ G3 Shield module, designed for improved mechanical strength and hail resistance.
For utility-scale projects, the company is also promoting its two-sided double-glazed NEG21 module, which delivers up to 760W with a module efficiency of 24.5%. The product is based on 210mm G12 wafers and features a low-voltage design that enables higher string power, reducing balance-of-system (BOS) costs and levelized electricity costs (LCOE) by 2% to 6%, the manufacturer said.
The NEG19 module, meanwhile, offers up to 670 W and an efficiency of 24.8%. It is optimized for tracker systems with one in portrait (1P). Trina Solar says the low-voltage architecture can reduce BOS costs and LCOE by 1% to 5% while maintaining system compatibility.
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