German PV manufacturer Sunways has increased the peak efficiency of its solar cells to almost 20%, the company has announced.
Using new manufacturing techniques, Sunways claims its series-produced PV cells have achieved peak efficiency values of 19.4%. Efficiency describes the percentage of radiant energy converted into electrical energy.
Sunways said this performance had been achieved by optimising various features of the cells, such as front metallisation and surface structure, and resulting in increased light yields through minimisation of shading and reflection losses.
The measurement had been confirmed by the PV calibration laboratory of the Fruanhofer Institute for Solar Energy Systems in Freiburg, the company added.
A solar module comprising 60 solar cells with an efficiency of 19.4% generates an output of around 270 watts.