Abstract
The growing attention to environmental and energy issues led to the search for renewable energy sources, which is gaining more and more space. In this context, photovoltaic solar energy is considered one of the most promising because it has advantages, such as ease of operation, possibility of integration in buildings, low level of proliferation during an operation and great potential for power generation in Brazil. Therefore, this work aims at a proposal to implement a photovoltaic system connected to the grid (On-grid) as an alternative to reduce the cost of energy consumption in a residence in the municipality of Palmares-PE. For the dimensioning of the photovoltaic system it was considered the monthly energy consumption of the residence and an irradiation of the place. Finally, a cost analysis was carried out to implement the system, which revealed that the use of this energy is economical and feasible. The solar generation capacity was projected at 6,27 kWp. The value of the project was R $ 32,049.98 and the payback period was 3 years and 8 months. Considering a Minimum Attractiveness Rate (TMA) of 6.5%, the NPV was R $ 225,707.88 and the Internal Rate of Return (IRR) of the system was a percentage of 43.55%.
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