Degradação ambiental das células solares de silício cristalino

Abstract

The research of photovoltaic technology in Mozambique is an extremely important matter, and very up-to-date. In fact, the country has high levels of solar radiation in almost the entire national territory and whose average exceeds the average of the entire planet by five times, which is 1kWh / m2 per solar day. Photovoltaic energy is extremely useful in rural areas, which are difficult to reach by the conventional electricity grid due to economic factors, and in other areas such as transport and communications. On the other hand, the use of this type of technology contributes to a great extent for the preservation of the environment. For a better use of the country's potential in solar energy, it is necessary to improve the performance of solar cells (which is currently between 14% -16% for commercial cells) and adapt their use to the environmental conditions of our region. . To this end, the study of the efficiency of solar cells and the analysis of their degradation over 1 year were carried out, from 1 July 1997 to 30 June 1998 in the environmental conditions of Mozambique. Factors of great influence on cell yield were also analyzed, such as temperature and solar radiation. The results obtained have good accuracy and can be used to improve the type of cells for use in the region.