Prosumers, the Portuguese Case

Abstract

Decentralised generation, storage and demand-side response solutions are emerging rapidly across all costumers' categories. These solutions combined with the increasing share of renewable energy sources are subjecting the power sector to structural changes and challenging all the players. A revision of the current regulation models must therefore be made, in order to guarantee that real benefits and costs are correctly assigned to the different end-user categories (avoiding cross-subsidization), while encouraging efficiency, promoting renewable generation, guaranteeing security of supply and ensuring the financial/economic balance of the DSOs.In this paper we analyse the Portuguese prosumer figure and the impact on the tariffs revenues, according to three predefined prosumer penetration scenarios and considering their future compensation to support policy charges.