Avaliação técnica e econômica da implementação de um sistema de rastreamento solar smartflower

Abstract

This paper analyzes the technical and economic feasibility of a distributed photovoltaic micro-generation system with Smartflower-type solar tracking connected to the grid, by installing it in a rural B2 consumer unit, with a single-phase 220 V connection, in the Alegrete - RS region. In order to determine the profitability of the project, the influence of tariff flags and annual tariff adjustments suffered by the electricity concessionaire in the region were taken into account. The study aims to present a possible reduction in the value of the bill, combined with the profitability provided by the generation of the Smartflower photovoltaic system. The system was sized to supply 100% of the annual consumption of this consumer unit. In order to carry out the economic feasibility, the following were considered: the cost of the investment by the entrepreneur, the system's operating and maintenance costs based on the useful life of the components in the timeframe adopted in the study, based on which the concepts and methods of economic engineering were applied, including: Cash flow, Net Present Value (NPV), Internal Rate of Return (IRR), Simple Payback and Discounted Payback based on a Minimum Attractive Rate based on the average inflation rate in Brazil. The project proved to be technically viable, but failed all the economic viability criteria, as it was not possible to obtain a financial return within the established period of 25 years. Keywords: Photovoltaic systems. Smartflower. Economic viability. Solar tracking.