Their architecture enables improved light yield in the rear area of the cell, which in turn increases the yield of electrons. To achieve this, Talesun is relying on thin-film cells that operate without silicon: They consist of copper indium diselenide and reduce the drop in performance of the modules. The output of the Bistar module series is as high as 395 watts.
At the same time, Talesun reduces the light-induced degradation that occurs once after installation of the modules. After the first 1,000 hours of operation, the efficiency of the modules stabilises and then remains virtually constant. In the first year, the negative deviation may not exceed 2.5 percent of the nominal output. From the second year onwards, the manufacturer promises that yields will drop by a maximum of 0.7 per cent per year - which means that after 25 years the modules will still achieve 80.7 per cent of their original output. (mfo)
