Solitek releases half-cut bifacial 420 W TOPCon solar module

Solitek, a Lithuanian manufacturer, has developed a half-cut M10 full black glass-glass tunnel oxide passivated contact (TOPCon) module with 420 W of output and a power conversion efficiency of 21.51%.

Lithuanian module manufacturer Solitek has unveiled a new full-black bifacial solar module based on TOPCon cell technology.

The manufacturer said its new 108-cell Blackstar B108 420W panel is based on n-type half-cut M10 TOPCon solar cells. It has a power output of 420 W and a power conversion efficiency of 21.51%.

The modules measure 1,722 mm x 1,134 mm x 30 mm and weigh 25 kg. They feature a glass-glass design with a black anodized aluminum frame, with the glass having a thickness of 2mm. The front side is based on heat-strengthened and anti-reflective glass, while the back side uses float glass.

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. Solitek says the design can withstand up to 8,100 pascals (Pa) of snow load and up to 3,600 Pa of wind load. It also features a split junction box with an IP68 enclosure. The maximum system voltage is 1,000 V.

The product comes with 30-year product and efficiency warranties. The company said the panel will offer 90% of the initial efficiency after 30 years, or 0.31% per annum after the first year’s 1% reduction.

Solitek said the module is already making its way into new PV plants, such as an alpine retaining wall project that Switzerland’s Engadiner Kraftwerke completed in December. A similar Swiss plant was also commissioned in December, featuring mounting equipment from K2 Systems and solar modules from an undisclosed supplier in the Swiss canton of Appenzell Ausserhoden.

This post appeared first on PV Magazine.

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