CIS has the broadest spectral response (from red to blue) of all photovoltaic technologies. The semiconductor absorbs the light so well that it appears black. This is also reflected in the power yield (kWh/kWp).

PowerMax® delivers unrivalled performance in diffused light conditions

While conventional crystalline silicon solar modules still achieve slightly higher efficiency levels under standard test conditions, CIS modules lead the way in practice. In long-term operation in changeable weather, CIS solar modules like PowerMax® perform better, particularly in the diffused light and adverse weather conditions widely found in Germany and Central Europe.

PowerMax® module design optimised for outstanding performance

The intelligent design of PowerMax® is another key plus point. The integrated bypass diode ensures that the affected string of the photovoltaic system continues to function even if one solar module is shaded. The whole module design with its 104 CIS solar cells is optimised for low system costs and maximum power yield.