This paper presents a design approach to an embedded monitoring system found in distributed renewable energy power systems. The grid connected distributed power system, delivers energy to the consumers located on the micro-grid, operating at distribution voltage levels, and also delivering the remaining surplus energy to the main distribution grid. The aim of this paper is to present the development process of a monitoring system for an energy consumer/producer unit in a local microgrid. With the help of this monitoring system, the user can view in a dedicated management software, the amount of energy produced from the distributed generation unit and the energy consumed by the local consumer. The software presents in almost real time the power and energy parameters, and the measuring data are saved in a database. This is an economic and implementable method, which helps the user, to keep up to date of the energy balance sheet of the energy consumer/producer unit.