Abstract
In this study we perform a comparison between the efficiencies of two different types of photovoltaic technologies arrays located in the same location and condition, one based in polycrystalline silicon and the other one in thin-film modules of amorphous silicon (a-Si).
Two summer days had been taken for the study, a daily regular radiation and a variable radiation one.
Based on data collected through a monitoring system instant efficiencies were calculated for each minute of the day and then compared with each other for the two cases.
It has been observed that the technology based on a-Si behaves much more stable than the polycrystalline in both cases, reaching values of similar efficiency for both days with good radiation as for variables ones, which makes it a good alternative for projects with special features such as places where there is very low radiation, very irregular weather places and facades with non-optimal locations oriented to south where production could be optimized
with a-Si modules.
