BARBOSA, J. A.; http://lattes.cnpq.br/0763888247938360; BARBOSA, Jefferson de Albuquerque.
Resumo:
This work presents a case study involving the CJ building of the university, focusing on the
design and economic evaluation of a new external lighting system, powered by an off-grid
photovoltaic generator. With energy costs rising, concerns about energy efficiency becoming
increasingly evident and the growing trend experienced by distributed generation, in the case
in particular of photovoltaic solar generation, the possibility of doing a study combining these
three situations, being the main motivation in the development of this work. For the
elaboration of the same, were used data of the consumption of the building, simulations in
modeling program and spreadsheets of calculation, always observing the norms and
conventions in force. The results obtained in the study showed that, the system is
economically feasible, contributing to a reduction of up to 15% of the monthly energy
consumed in the building and saving, over its useful life, just over 57 thousand reais, being
about 3,7 thousand only in the first year of operation. However, it was observed that,
compared to the total energy expenditure of the institution, this economy would be equivalent
to a monthly reduction in the electricity bill of only 0.11%, it takes more than this project to
have a truly expressive economy.