Along the coming years, an important increase of the energy consumption in the world is expected, what will lead the energy sector to deal with several challenges such us availability of delivering the demanded energy, increase of the emissions and greenhouse effect. Energy Management Systems are being integrated with domestic and residential applications, which optimize the home energy consumption. The Local Energy Management Unit is presented in this paper that allows an optimized power demand to the Grid. It utilizes different types of communication (by using TCP and X10 protocols) with the aim of obtaining an efficient energy management and allowing a lower power consumption, which lets the user to decrease the cost of the electric invoice. A prototype has been built that shows energy management results. The power demanded from the Grid is kept constant regardless of the house power consumption.Index Terms-Electric energy management systems, energy storage, intelligent systems, smart grids.

This paper reviews the most important energy storage systems for applications in residential environments. Normally, these systems are associated with renewable energy in order to achieve specific characteristics, although new possibilities and challenges are implemented over them in any residential places. Nowadays, the development of such kind of energy systems represents a technical challenge in the market. In residential and small building applications, energy storage solutions supply the demanded power by consumers of residential areas or small stand-alone buildings placed on isolated zones. In context of smart grids, energy storage management systems are not only concerned about energy storage, also inefficiency optimization and power consume. This work presents INTELEM, a new smart storage architecture which integrates the energy storage and the intelligent energy management in communities and in residential applications.

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Distribution Grid is evolving into the Smart Grid and users are playing a key role more and more. An efficient network is the aim and Energy Management Systems are being utilized in residential areas in order to contribute to reach this final mentioned goal. The Local Energy Management Unit is presented in this paper, which allows an optimized constant power demand to the Grid, demanding sinusoidal currents to the Grid which are in phase with the Grid voltage. Communications by using TCP and X10 protocols are used to control the whole system and a prototype, which is presented in this paper together with the obtained experimental results, is built to demonstrate the presented efficient energy management conclusions.