Trina Solar presents bifacial dual-glass TOPCon solar modules for rooftop PV

The Chinese manufacturer said its new TSM-NEG9RC.27 and TSM-NEG18R.28 combine n-type technology with 210mm rectangular silicon wafer (210R) cell technology. Their temperature coefficient is -0.29% per C and their efficiency can reach up to 22.3% and 22.7%, respectively.


Chinese solar module maker Trina Solar has unveiled two new rooftop solar modules based on tunnel oxide passivated contact (TOPCon) cell technology.

The manufacturer said that the new 144-cell products have a bifacial dual-glass design and combine n-type technology with 210mm rectangular silicon wafer (210R) cell technology.

One of the two modules is called  TSM-NEG9RC.27 and is intended for applications on residential and small commercial roofs. It is available in seven versions with a power output ranging from 415 W to 445 W and efficiency spanning from 20.8% to 22.3%.

Its open-circuit voltage is between 50.1 V and 52.6 V and the short-circuit current is of 10.50 A to 10.71 A. It measures 1,762 mm ×1,134 mm × 30 mm amd weighs 21.0 kg.

The second product is dubbed TSM-NEG18R.28 and is designed specifically for commercial and industrial rooftops. The manufacturer offers the panel in seven versions with a power range of 475 W to 505 W and an efficiency of 21.4% to 22.7%.

This panel features an open-circuit voltage of 39.0 V to 40.3 V and a short-circuit current between 15.68 A and 15.89 A. Its dimensions are 1,961 mm × 1,134 mm × 30 mm and the weight is 23.5 kg.

Both products can be used with a maximum system voltage of 1,500 V and are built with IP 68 enclosures. They have a temperature coefficient of -0.29% per C and an operational temperature ranging from -40 C to 85 C.

The panels come with a 15-year product warranty and a 30-year performance warranty. The degradation in the first year is purportedly 1.0%. A 30-year end power output is guaranteed to be no less than 87.4% of the nominal output power.

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