International Journal of MC Square Scientific Research Vol.8, No.1 Nov 2016 81 Development of Communication Technologies and Networks for Smart Grid Nagaraj.V Assistant Professor/ECE Mahendra Institute of Technology e-mail: nagarajlec@gmail.com Dr.T.R.Sumithira Professor K.S.R College of Engineering e-mail:sumithra.trs@gmail.com Dr. S.Prabu Professor/ECE Mahendra Institute of Technology e-mail:vsprabu4u@gmail.com Abstract - The present electrical grid is perchance the most engineering achievement of the 20th century. However, it is ever more outdated and overburdened, leading to costly blackouts and burnouts. For this and various other reasons, conversion hard work are ongoing to make the current electrical grid smarter. A consistent, universal and secure communication infrastructure is binding for the accomplishment and deployment of the future smart grid. Technologies are emerging in addition to the previously applied to help upgrade the current power grid. In this paper we will give an general idea of smart grid reference model, and a complete survey of the available networks for the smart grid and a serious review of the progress of wired and wireless communication technologies for grid infrastructure. Communication architecture for Home Area Networks (HANs), Neighborhood Area Networks (NANs) and Wide Area Networks (WANs) for smart grid applications. We think that this work will provide valued insights for the novices who would like to follow linked research in the SG domain. Keywords - Smart grid Communication Networks, HAN, WAN, NAN, FAN, PLC, WIFI, WIMAX, Dash 7, 3G/4G, LTE-A, ZigBee. 1. Introduction The researches in smart grid domain are enhanced by dramatic economic losses and repetitive electrical systems blackouts and failures. Advanced communication and networking technologies will be incorporated in the future electrical power system in order to make the grid more reliable, secure and sustainable. In smart grid communication the network is essential to connect intelligent electronic devices in distributed locations in order to establish stable bidirectional exchange of data flow, control and monitoring instructions between them and utilities control centers. In addition a strong, reliable, secure and robust communication infrastructure is required to gather, collect, and combine data provided by smart meters,