South Korea’s SDN has developed new bifacial solar modules based on M10 wafers. It claims the new panels are the largest made in South Korea.
The new SunDay 10+ modules have 144 monocrystalline half-cut cells based on M1o wafers and rail technology. SDN claims they are currently the largest solar modules manufactured in South Korea.
The manufacturer offers four versions of the panels with nominal powers of 580 W to 595 W and power conversion efficiencies of 20.75 to 21.28%. The breakdown voltage is 53.42 V to 53.95 V and the short circuit current is 13.8 A to 13.99 A.
The dimensions of the panels are 2,465 mm x 1,134 mm x 35 mm and the weight is 35.5 kg. They are built from 2 mm tempered anti-reflective glass and aluminum alloy. They also have an IP68 enclosure and a maximum system voltage of 1500 V. The panels have a temperature coefficient -0.40% per degree Celsius and operating temperature -40 C to 85 C.
New products have a 12-year warranty and a 30-year performance warranty. The degradation in the first year is claimed to be 2.0% and at the end of 30 years the power is guaranteed to be at least 83.5% of the nominal output power.
SDN has a panel factory in Gwangju, South Korea. It also plans to build a 1GW manufacturing facility in Gwangju, which will produce solar panels based on tunnel oxide passivated contacts (TOPCon) technology, as well as modules with unspecified tandem technology.
The company operates in the distributed generation PV segment and in the development of large-scale solar projects. It has built solar panels in Bulgaria, Japan and South Korea. Its shipbuilding division also supplies outboard engines for fishing and leisure boats.