Abstract
The legacy power grid has several limitations resulting in misuse and mismanagement of energy. The evolution of IT technologies have empowered revolutionizing the power grid and created the concept of the Smart Grid. Hence, the Smart Grid is considered as the integration of the latest information, communication and operational technologies with the traditional power grid in order to enhance energy management within a reliable, efficient network linking the diffirent grid actors from the consumer to the end-head system such as energy providers and billing services. Introducing new technologies into Smart Grid raises new issues, mainly security issues. Therefore, in this paper, after presenting the Smart Grid and the smart metering system, we present the security requirements of the Smart Grid and we highlight the user privacy concern as well as the different techniques proposed in literature to deal with it. Our main objective is to provide a study of the existing techniques preventing privacy disclosure. (C) 2014 Published by Elsevier B.V.