Análise dos impactos da instalação de usinas fotovoltaicas de microgeração em função da nova taxação da energia gerada

Abstract

In 2022, Law 14,300 was enacted, also known as the legal framework for generation distri- buted, the Law, among many changes, brought changes to the rules for the injection of surplus

of electrical energy in the public distribution network, starting to charge a percentage of the

Distribution System Usage Tariff, DSUT wire B. The research aims to compare the costs invol- ved in installing a photovoltaic system, at different times, check whether the payback time has

increased or reduced, and the savings generated until the year 2045, year in which the systems start to be charged equally on the DSUT wire B. For the carrying out this comparison were sized for the same consumer unit two systems, the first following the premises of ANEEL’s normative Resolution 687 of 2015 and the second according to Law 14,300 of 2022. The results show that a system installed according to Law 14,300 has a shorter return on investment time, while the value total saved is greater in a system installed in accordance with resolution 687 of 2015. We can conclude that despite the new taxation, photovoltaic energy is still viable for installations residential.