Humans live and spent their times in buildings. Determining the best configuration for their office or apartment (HVAC configuration, doors and windows positions, usage of appliances,...) is becoming subtle because low consumption buildings are becoming more and more sensitive to human behavior. Moreover, variable energy costs and energy availability issues increase the complexity of the energy management problem. In such complex situations, many scientific research and engineering works are ongoing with the aim of supporting occupants in their everyday life, but still, in most cases, there is a need for experts to design models for living zones to manage, which is time-consuming and very costly. This paper will continue in the stream to help occupants to understand their energy systems and the impact of their actions on the system, by providing causal explanations and presenting a path diagram for all actions and environmental changes and their consequences.