Evaluation of the economic viability of grid-connected photovoltaic systems in different Brazilian regions

Adrielle Cristina Ozanski,Luciene Kazue Tokura,Thaís Caroline Gazola,Jair Antônio Cruz Siqueira ,Maurício Ivan Cruz ,Renata Galvan Rutz Da Silva ,Carlos Eduardo Camargo Nogueira

doi:10.33448/rsd-v10i17.24557

Adrielle Cristina Ozanski, Luciene Kazue Tokura + Show 5 more

Open Access

https://doi.org/10.33448/rsd-v10i17.24557

Copy DOI

Abstract

This study aimed at the dimensioning and economic analysis of grid-connected photovoltaic systems in different cities in Brazil. As a criterion for the selection of the cities of interest, it was considered the capital with the highest number of residences in each of the five regions of the country, as well as the city where the authors are established, namely the cities of Salvador, Manaus, Goiânia, São Paulo, Curitiba, and Cascavel. Based on local characteristics and adopting an average monthly electricity consumption of 400 kWh, was developed the dimensioning of the photovoltaic systems, adopting the methodology presented by Pinho and Galdino (2014). Based on the components determined for the systems, budgets were made to enable their implementation. The investments to be made varied between US$ 4,682.97 and US$ 5,326.06. From these values, economic analyses were made using the discounted payback method. The projects presented different payback times, with the shortest payback time to the city of Manaus, with 9 years and the longest in the city of Curitiba, with 15 years. Therefore, it was confirmed the research hypothesis that the regional characteristics linked to the dimensioning of the photovoltaic systems directly affect the time of return on investment.

Highlights

The oil crisis of the 1970s changed the way people evaluated the availability of natural resources around them
There was, worldwide, a strong incentive to search for new energy sources, mainly renewable, aiming to replace fossil fuels and nonrenewable means of energy (Nakabayashi, 2014)
Due to the water crisis, government agencies have created several incentives for the implementation and application of other energy sources, such as wind, biomass and solar, which have increased over the past few years (Nascimento, 2018; EPE, 2019; Maimoni & Cardoso, 2020)

Summary

Introduction

The oil crisis of the 1970s changed the way people evaluated the availability of natural resources around them. Due to the irrational use of natural resources, the oil crisis, but a severe water crisis has affected many countries. Many nations are already experiencing a water crisis, which is set to worsen in the coming years as these countries develop (Cirilo, 2015; Silveira et al, 2021). Due to the water crisis, government agencies have created several incentives for the implementation and application of other energy sources, such as wind, biomass and solar, which have increased over the past few years (Nascimento, 2018; EPE, 2019; Maimoni & Cardoso, 2020)

Objectives

Methods

Results

Conclusion