IoT-based Office Buildings Energy Management with Distributed Edge Computing Capability

Building Energy Management systems (BEMS) are becoming very popular, for providing net Zero Energy Buildings (nZEBs). Attachment of these systems through IoT technologies, enables the building owners as well as utility companies to control energy's usage, generation, and storage in a more smart and real time manner, which is the foundational concept for Internet of Energy (IoE). High number of buildings especially in metropolitan areas imposes high amount of computation resources and increased communication and computation delays to the central cloud servers. In this paper, we first describe the details of a real IoT-based large scale deployment of office buildings energy management system in Greater Tehran Electricity Distribution Company (GTEDC), and then we propose an edge computing solution to reduce the complexity and delay of data dissemination in the system expansion phase.