Bisol unveils 21.5%-efficient M10 full-black solar panels for residential use

Bisol's new products have a power rating of 400 W to 420 W and a temperature coefficient of -0.34% per degree Celsius. The Slovenian company that makes PV modules said that it was the first time it used M10 wafers.

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Bisol has introduced a new generation of residential PV modules with M10 cells and 10 thin-wired busbars.

“The first batch of BISOL Group’s best-selling Bisol Duplex in full-black 400-420 W variant will be available in February, along with its frameless counterpart, BISOL Laminate,” the firm stated in a statement.

The firm provides modules with 400 W, 410 W, and 420 W of power. Their conversion efficiencies range between 20.5 and 21%. The open-circuit voltage ranges between 37.0 V and 37.4 V, whilst the short-circuit current ranges between 13.74 A and 14.06 A.

The panels may function with a maximum system voltage of 1,500 V and temperatures ranging from -40 to 85 degrees Celsius. They measure 1,722 millimetres by 1,134 millimetres by 30 millimetres, weigh 22 kilogrammes, and are composed of 108 half-cut PERC cells.

The new products also have 3.2 mm anti-reflective coating tempered glass and an IP 68-rated junction box. Their temperature coefficient is -0.34% per degree Celsius.

Bisol provides a 25-year linear power output warranty and a 15-year module product warranty. Supposedly, the rate of deterioration in the first year is 3.0%.