Abstract: An integrated energy management and device automation system for managing a premises electrical system having a plurality of electrical circuits. The energy management and device automation system comprises a central controller. The central controller is configured to receive, over the premises electrical system, energy usage data from a plurality of modules and module originated notifications that a module has been connected to the premises electrical system. The central controller is configured to receive and send, over the premises electrical system, messages for device automation and control from a plurality of modules. The energy management system additionally comprises a plurality of modules. Each module comprises a processor, a powerline interface operatively connected to the processor and to one of the plurality of electrical circuits and a sensor operatively connected to the electrical circuit so that the sensor can sense at least one of current and voltage.