The performance of photovoltaic modules is influenced by solar spectrum even under the
same solar irradiance conditions. Spectral factor (SF) is a useful index indicating the ratio of …

Several works report on seasonal fluctuations of power production of amorphous silicon (a‐
Si). These oscillations are due to two overlap** phenomena (i) spectral and (ii) the …

The performance of photovoltaic (PV) modules is generally rated under standard test
conditions (STC). However, the performance of thin‐film photovoltaic modules is not unique …

In 2003 a fully-integrated photovoltaic (PV) plant composed by amorphous silicon PV
modules was installed on top of a flat roof in Lugano (Southern Switzerland)–a site …

Standard parameters in Photovoltaic (PV) such as Final Energy Yield (YF) or Performance
Ratio (PR)(IEC 61724) are simply calculated as sums (YF) or averages (PR) of the PV …

Standard testing condition power of PV modules, especially thin-film modules, is not a
constant value. Exposure to irradiance and temperature, as well as electrical bias and dark …

Based on the outdoor test PV power plant near Zürich the performance regarding single
module and grid connected string of five different cell technologies has been analyzed and …

This study examines the degradation of single junction amorphous silicon (a‐Si: H)
photovoltaic (PV) modules. It summarises the main results obtained from over 7 years of field …

For the commercial fabrication of a-Si/µc-Si tandem modules, thin absorber layers are highly
desirable since production cost decreases with layer thickness. Improving the light …

Key differences of precisely measuring currents on wafer based solar cells and multi-
junction solar cells are shortly described at the beginning of the paper. In the next section …