The paper describes an architecture for a monitoring and control system that can be adopted in a Smart Micro Grid (SMG). The logical framework is firstly described, showing how the combined usage of Energy Gateways (EGs) and Energy Interfaces (EIs) will provide new interesting features to the grid. Then, the expected capabilities from the SMG components are discussed, providing a high level definition and analysis of both EGs' and EIs' requirements. A distributed monitoring and control system is then described based on the presented vision, highlighting critical requirements. Finally, a prototype system has been realized using embedded components. The provided experiments constitute a proof of concepts about the expected features of the SMG.