Impactos do marco legal e da ren 1.059/2023 na microgeração distribuída no Brasil: estudo de caso de um cliente residencial

Abstract

This work aims to carry out a case study of the impacts of the legal framework for distributed minigeneration and microgeneration in Brazil, sanctioned by Law 14,300/2022 and regulated by Normative Resolution No. 1,059, of February 7, 2023, of ANEEL in the face of the reality of a small residential consumer. To this end, a photovoltaic system was designed for a real residential unit located in Fortaleza/CE, served by a three-phase input standard and falling within the B1 Conventional tariff modality. The methodology used to analyze economic viability considered three indices: Net Present Value (NPV), Internal Rate of Return (IRR) and payback. With the purpose of evaluating the impacts of the new legislation, four study scenarios were listed. From the analyzes carried out, the payback of investments did not vary much after the legal framework, however the NPV and IRR values showed a significant decrease as the simultaneity factor approached zero, thus demonstrating the great influence of the simultaneity in the analysis of investment for consumers who enter the Electric Energy Compensation System (SCEE). In particular, the lowest calculated values for NPV and IRR were for the remote self-consumption scenario, that is, for the consumer unit with a simultaneity factor of 0%.