Retrofit project of the interior lighting systems of the Rio Branco Campus of the Federal University of Acre: A study of the technical and economic aspects

The topic of energy efficiency has been increasingly discussed in universities, supporting the development of products and projects that result in the reduction of energy consumption. In this work, the retrofit of the lighting system of the Campus Rio Branco of the Federal University of Acre will be proposed. This project represents an option for reducing the electricity bill and simultaneously maintaining or even improving the lighting conditions on the Campus. The retrofit project was prepared according to the procedures described in the Manual of the Procedures of the Energy Efficiency Program (PROPEE). The applied methodology consists of the following steps: definition of the study site, survey of existing lighting systems, stratification of existing lamps by type and power, sampling and verification of instantaneous power of previously collected lamps, definition of equivalent LED lamp and project energy efficiency. The existing lighting system is composed of tubular fluorescent lamps and compact fluorescent lamps, totaling 15475 lamps, distributed in nominal powers of 15W, 18W, 32W, 36W and 40W. The LED lamps selected for the purpose of replacement have parameters suitable for the application of the ABNT IEC 8995-1 standard, designed to carry out lighting projects. The results show that the energy saved by replacing the lamps corresponds to 320.067MWh/year.