Estudo de caso: análise de viabilidade para implantação de usina fv em fábrica de artefatos de concreto na Bahia

Abstract

In face of the long periods of drought the country’s been going through, the dependence on the generation of electrical energy by the water sources has been causing a significant rise in the energy costs. The search for alternatives to minimize such costs is an important strategy to company managers, especially those with high power demand. Amongst those alternatives, the photovoltaic distributed generation insures significant benefits, both financial and environmental. This current paper looks to expose a technical and financial analysis of the implantation of a photovoltaic plant in an industry in a county in interior Bahia. After in loco data collection, a study was made in the place of the installation trough the PVSol software, followed by the dimensioning of the system’s potency through Excel spreadsheets developed by the author herself. Sequentially, five solutions were exposed and through a technical analysis of the enterprise’s installation conditions and the solutions’ financial viability, a most viable strategy was determined to the industry in question. The chosen solution was number 01, a system with the potency of 108kWp, utilizing 240 solar panels of 450 W and a string invertor of 75 kW, installed in a group B consumer unity with the auto consume remote model. The estimated investment with panels and invertor was of R$291,299.00, with estimated economy for the first year of around 80%. Solution 01 presented a VPL of R$160,627.77 and a TIR of 42%, superior to the stipulated value for the TMA of 20%. This analysis showed the viability of the project from the point of view of the costs with panels and invertors, not taking into consideration the costs with electrical accessory materials and manpower.