FIEMSER (Friendly Intelligent Energy Management System for Residential Building) addresses the need of achieving energy positive buildings through solutions based on a rational consumption of energy, local generation and an increase in the consciousness of the building owners towards their energy consumption habits.The main goal of FIEMSER matches with the challenges of the Call by aiming to build a monitoring and control system to optimise in near-real time the local generation-consumption matching, considering all possible elements, including active components (curtains, etc.) and, also to build an intuitive user interface that will allow the end-user to save energy while maintaining the desired comfort level.FIEMSER aims to achieve those goals in a short time span by aiming to the application of those automation measures to buildings in general (existent and new) and not only to new buildings, whose degree of automation can be quite advanced and its application less demanding. Then within the project a special relevance is given to existent buildings by investigating in solutions, like wireless connectivity based on IPv6, that reduce the expenses needed for the adaptation of the building to benefit from the use of energy efficiency measures. This approach takes into account that the life span of a building is around 50 years and that afterwards a minimum amount of money is, usually, devoted to its refurbishment.