Tarifação do uso da rede de distribuição com presença de geração distribuída

Abstract

The regulation of Distributed Energy Resources (DERs) has cast doubt on the sustainability of utility business models. The impact of net-metering, and network charge rebates for distributed generation (DG) have been questioned because of the cross-subsidies that result between passive consumers and DG investors. Besides DG investors, other new entrants such as owners of energy storage resources and electrical vehicles are creating challenges for the regulation of distribution service pricing. This work addresses the debate by comparing several different distribution network pricing models from the literature. It suggests modifications to these methodologies to adapt them as we transition from a distribution sector comprising passive users to one in which users are active agents. It considers the design principles governing each tariff, from the perspective of simplicity, economic signalling, and revenue reconciliation. Results are presented of simulations performed with different arrangements of alternative energy generators and energy stores, using an actual feeder from a distribution company in Brazil. An analysis of these results is provided that suggests a combination of locational and time-of-use rates can provide effective economic signals to these new types of system user.