Dimensionamento e viabilidade financeira de um sistema fotovoltaico para alimentar uma frota de veículos elétricos de um centro de distribuição em Fortaleza

Abstract

The state of Ceará has the potential for photovoltaic (PV) energy generation thirty times greater than the gross internal supply of Brazil in the year 2018. The daily average solar irradiation in the state is approximately 5.48 kWh/m2/day. In other words, the availability of PV energy is enormous and highly advantageous both financially and environmentally. Considering these fundamental issues, this work was carried out to size and assess the financial viability of a complementary PV system used to power a fleet of electric vehicles in the city of Fortaleza, Ceará, serving a brewery, transporting products, and making deliveries. The methodology used during the study's development involved gathering fleet data such as vehicle make, energy consumption, and daily mileage to size the necessary power to fuel it and the costs required to acquire and install the panels. The company already has chargers connected directly to the grid, so the sizing of a battery bank will not be addressed in this work. Issues related to fleet maintenance and cost savings will be disregarded as the vehicles have already been acquired beforehand. Using the calculated values, the monthly savings with the system's implementation can be determined, and thus, financial indicators such as Net Present Value (NPV), Simple Payback, and Return on Investment (ROI) can be calculated to ascertain the financial viability of the project and determine how long it takes for the company to make a profit.