A fundamental requirement for smart grid is the design of a reliable and high performance communication infrastructure. The lack of timely access to information within domains of the smart grid serves as a real limit to detect and effectively react to system instability. Therefore, the delays are an important aspect and should be considered into any power system design or analysis. In this paper, we propose an IP/MPLS based communication infrastructure and optical fiber for the communication medium in the backbone network. In addition, in order to achieve the quality of service required for smart grid applications, traffic flows are classification into four classes using prioritize traffic and appropriate assignment of code point. Then, by using the Traffic Engineering with Diffserv (DS-TE) and active queue management algorithms as well as RIO, the quality of service is guaranteed in an acceptable level.

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This paper describes an application of Wireless Sensor Network in monitoring and controlling of energy in residential and commercial buildings. In this project, we design four different electronic Nodes including Sensor Node, Socket Node, Digital Power Meter Interface and Coordinator Node. In the application layer, user friendly software is designed to control and monitor all nodes in the wireless network through GPRS or LAN with using C# programming language. Each user can remotely connect to this network and control each input and output of nodes and in the automatic mode, all nodes can control electrical device without management from the coordinator node side. In this paper we have discussed various aspects of this project.

This paper presents a competitive model for energy managment at the residential complexes in a city.This model includes cultural patterns and technical models together.The combination of culture and technology is improved energy managment at consumers side and decreased problems at utility side for energy supply. The consumer owned smart meter shared data with a control and monitoring center(CMC) through wire or wireless platform and on the other side, a data analyst application is enabled on the server and after analyzing and processing data received from the customers, the information are transmitted to a database(SQLite). A web application also uses the information stored in the database. The smart meters integrate different types of information coming from several electric or electronic devices present in buildings via ZigBee or WiFi platform.This information are shown to the building residents through graphical forms, tables and charts via web programming methods.

Providing uninterruptable electric power for customers is the final goal for power utilities and they do their best to minimal their SAIDI index. In this paper a mobile battery energy storage system is presented which is designed and utilized in Mashhad Electric Energy Distribution Co. (MEEDC) and is called BEST (Battery Energy Storage Technology). What is unique and profoundly important about BEST is its flexibility to take advantage of multiple benefits from a single device. BEST provides the opportunity to store energy from the electricity grid and return it when required. This offers a huge range of options to strengthen and enhance the performance, quality and reliability of smart electricity grids.