Módulos monofaciais X bifaciais: estudo comparativo de geração entre duas usinas de 75 kW na região Oeste do Paraná

Abstract

Given the ongoing growth and advancement in photovoltaic energy technologies, there is an imperative need to enhance efficiency in all aspects related to solar systems. Thus, it is crucial to conduct a thorough investigation of these technologies, particularly those that provide more significant added value, such as bifacial modules compared to monofacial modules, which currently dominate the market. The primary objective of the present study is to perform a comparative analysis of energy generation in two 75 kW solar plants, both equipped with an equivalent amount of kilowatt-peak (kWp) installed. The key distinction lies in the arrangement of the solar modules, with one plant employing monofacial modules and the other adopting bifacial technology. To obtain precise and continuous generation data, the Solar.Web monitoring platform, a professional tool that provides real-time information on system performance, was employed. The analysis of generation graphs facilitated the assessment of seasonal variations and their impact on both configurations, resulting in a generation disparity of 5.97% in favor of the plant equipped with bifacial modules compared to the monofacial plant over an annual cycle. Based on the findings presented in this study, it is possible to conclude that indeed, bifacial module technology exhibits superior generation capability compared to monofacial modules. However, it becomes apparent that during periods of the year when solar radiation is less prevalent, the effectiveness of bifacial technology is on par with monofacial modules. Consequently, the disparity in generation between the two technologies does not appear substantial. Therefore, the decision to implement a bifacial system over a monofacial system necessitates a meticulous analysis of economic feasibility, taking into account the context and specificities of each scenario.