Análise de viabilidade técnico-financeira do retrofit do sistema de iluminação pública do município de Potiretama/CE

Abstract

This work brings a technical-financial feasibility study of the luminaires' modernization (retrofit) that make up the public lighting (PL) system of Potiretama/CE city. Initially, it presents some technical concepts regarding IP, the main equipment used in it and the charging system used by the electric power concessionaires. In addition, it shows energy efficiency (EE) scenes in Brazil and in the world, as well as the main Brazilian EE incentive programs, especially those focused on municipal management and PL (GEM and RELUZ). Next, it makes a case study to raise the potentials of savings in electricity consumption and the amount paid monthly with public lighting. The work has as its final activity the replacement of conventional luminaires (sodium vapor and mercury vapor) which has a short lifetime and greater energy consumption by light emitting diode (LED) luminaires that have a longer lifetime and are more efficient. The economic analysis made in this work bases its results on standard indicators of investment feasibility, such as Net Present Value (NPV), Discounted Payback (DP) and Internal Rate of Return (IRR). Finally, this paper presents the results obtained with the analysis, which confirm the feasibility of project execution, and the author's conclusions.