Positing the extension of Smart Grids to Smart Energy Management Systems in relevant domains, we propose a framework and a set of mechanisms for the identification, selfconfiguration and representation of a comprehensive range of energy-relevant entities in these target domains. These entities get represented by proxy software components, making up a domain abstraction layer that gets coupled to domain entities through a shared set of networked sensors and actuators. The proposed mechanisms make it possible to configure these entities as if they were state of the art networked devices, provided their relevant models are retrieved from a domain-specific ontology. We describe these mechanisms and their implementation on examples from the home domain.