Chinese solar module manufacturer Tongwei has launched a new TOPCon bifacial solar module for applications in large-scale and C&I PV projects during this week’s World Future Energy Summit (WFES) in Abu Dhabi.
“The TNC3.0 module is the most powerful product of our TWMNF-66QD,” a company spokesperson said pv magazine. “It should be in mass production soon.”
“The module is based on our G-12 multi-cut Tongwei N-type Contact (TNC) solar cell technology with a module area ratio of approximately 94%,” the spokesperson continued, noting that typical half-cut cells have a module area ratio of approximately 93%.
The new product has an output power of 770 W and an energy conversion efficiency of 24.8%. It measures 2,384mm x 1,303mm x 33mm and weighs 37.3kgW.
It is based on 2.0mm anti-reflective glass with coating on the front and 2.0mm semi-tempered glass on the back. It also features an anodized aluminum alloy frame.
The TWMNF-66QD series currently includes five versions of the panel with output power ranging from 740 W to 760 W and power conversion efficiency from 23.8% to 24.5%. Their no-load voltage is from 49.66 V to 50.46 V and the short circuit current from 18.62 A to 19.33 A.
The module is compatible with 1,500 V DC system architectures and has a temperature coefficient of -0.26%/C. The bifaciality factor is estimated at more than 85%.
The IP-68 rated product has a first year degradation rate of 1%, followed by an annual degradation limit of 0.35%. After 30 years, the module is guaranteed to retain at least 88.85% of its nominal power. It comes with a 12-year product warranty and a 30-year output warranty.
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