The Shading Influence on the Economic Viability of a Real Photovoltaic System Project

Renewable resources for producing energy self-consumption are growing, namely solar energy. This work focuses on the comparison of photovoltaic systems production a property in three different regions Portugal using traditional and emerging technologies, without batteries’ implementation. According to Portuguese law, there is no stipulated value selling surplus produced by self consumption unit, public grid. In order analyse economic viability project, two scenarios studied: delivery, at zero cost grid, its sale. Furthermore, same analysis carried out considering partial shading generator. The results show that if sale project becomes economically unviable four PV technologies. Otherwise, viable, presenting payback time lower than 10 years. Using unviable. When applying generator, becomes, all under study, It can be concluded introducing nanostructures cells power an infrastructure not, now, best solution from point view, current legislation. addition, makes projects study unviable, as it factor cannot controlled entirety.