Non-Technical Losses Review and Possible Methodology Solutions

Energy losses in the power distribution systems represents real cost harm to the energy sector as to the final consumers. Energy losses are categorized by Technical Losses (TL) and Non-Technical Losses (NTL). The TLs are related to the energy transformation and transport processes, meaning they are inevitable. As the NTLs refers to electricity theft or frauds, meaning that they can be fixed and must be reduced to a minimum. There are several existing methodologies for detecting and estimating the NTL. This paper proposal is to clarify how the NTLs are characterized and calculated by the regulatory institution in Brazil. Presenting a contextualization and perspectives for NTLs reduce, in addition to accomplish a bibliographic review on methods and applications to solve this problem in the power distribution system.