This model of an energy management system for residences extends the set of HES (Home Electronic System) application models. Models for lighting and security have already been developed and accepted. These models should facilitate the validation of the language specified for HES in ISO/IEC 15067-1. These models have been developed to foster interoperability among products from competing or complementary manufacturers. Product interoperability is essential when using home control standards, such as HES. This document defines a typical security system and describes the communications services needed. A high-level model for an energy management system using HES is presented. The model for energy management presented in this Technical Report is generic and representative of a wide range of situations. It accommodates a range of load control strategies.