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.
