Viabilidade da microgeração fotovoltaica para consumidores do grupo B, a partir da lei ordinária 14300/2022

Abstract

The distributed solar energy market in Brazil has grown significantly due to factors such as the annual increase in electricity tariffs, additional financing options and reduced solar panel acquisition costs. Initially regulated by Normative Resolution No. 482/2012, photovoltaic solar generation underwent reviews to ensure stability and confidence, culminating in Ordinary Law 14,300/2022. This legislation was crucial for establishing the legal framework for self-generation of solar energy in Brazil. However, the implementation of Ordinary Law 14,300/2022 raised concerns about a possible slowdown in distributed photovoltaic microgeneration. New pricing and transition rules in the Electric Energy Compensation System (SCEE) are points of attention, impacting the economy and the financial payback time of photovoltaic systems. In light of this regulatory transition, the objective of this work was to understand how the changes affect the financial return for consumers who adopt distributed microgeneration systems after the entry into force of Ordinary Law 14,300. An analysis was carried out through a case study, comparing the financial return, considering the conditions of Normative Resolution No. 482/2012 and Ordinary Law 14,300/2022, for three photovoltaic microgeneration consumer units with local self-consumption, belonging to group B , highlighting the impacts of recent regulatory changes on the scenario of distributed microgeneration in Brazil. The results showed a small increase in payback for the three consumer units, showing that Law 14,300 will not imply a lack of investment attractiveness for photovoltaic microgeneration cases for Group B consumers.