Projeto luminotécnico e de geração fotovoltaica para um supermercado

Abstract

In view of the constant increase in the consumption of electricity and also in the inflation of its tariff, it is necessary to seek ways to promote a reduction in energy consumption or to seek new sources of energy generation at a lower cost, enabling greater competitiveness and profitability to the enterprise. In view of this, the present work presents an analysis made on the consumption of electricity in a supermarket, with the objective of proposing solutions to improve energy efficiency and also promote savings. For this, it was proposed the implementation of a photovoltaic generator, where the system was dimensioned in the distributed generation mode connected to the grid. The generator system was designed to obtain the maximum energy generated while respecting the existing electrical installation. It was also proposed to replace the lighting system with LED lamps, since the system currently consists of fluorescent lamps, a lighting project was carried out according to the needs of the place, taking into account the condition of each environment. From the projects, budgets were made for the cost of implementation and the economic viability of each project was verified separately using the net present value method. In which the photovoltaic generation project obtained an IRR of 21.72% per year for analysis in 25 years and the lighting project obtained an IRR of 21.20% per year for analysis in 10 years. Both were viable compared to an attractiveness rate set according to SELIC currently at 3% per year.