In the real context, there has been a significant and relevant increase in penetration of production plants based on renewable sources in the global power system, as a result of the continuous development and improvement of the associated technologies, with special emphasis not on photovoltaic solar where evolution is fomented by Competitiveness between technologies and the pressure to control a "parity with a network" and also due to the growing social perception regarding the need to reduce CO2 emissions.

          From the point of view of the market devoted to distributed generation, since around 2012, in Portugal, the cost of photovoltaic electricity for domestic use is cheaper than grid electricity.

          With the publication of the European Directive "Nearly Zero Energy Building" (NZEB) (Directive 2010/31 / EU) the new public buildings are NZEB, from the end of 2018, with all new buildings being of 2020. This means, furthermore according to a directive, that a building should be a net energy consumption practically nil for a year and is the electric energy produced in the vicinity of the building.

          Taking into account the various sectors of the electricity system, such as the transmission and distribution system and the small / medium consumer / producer sector, it is an implementation of new approaches that allow the integration of different needs of the various stakeholders, taking into account a need to increase flexibility of the producer system, avoiding the costly reinforcement of the network infrastructure and enabling an optimized and correlated management between loading and consumption diagrams of proximity production micro-systems.