Smart grids are electrical grids using ICT and two-way communications to enable varying two-way flows of electricity and information for the integration of distributed renewable generation and power storage. Research and development in this field centres on three main areas; the infrastructure system, the management system, and the protection. The integration of advanced communication, sensing, control, and optimization techniques into traditional power systems is a key challenge in transforming conventional grids into smart grids, and so empowering consumers with real-time information and control over their power usage and production. This second edition of a well-established book strengthens the interdisciplinary approach of the original, combining technical depth with practical relevance, and offering updated information on recent developments. Content has been added on AI, machine learning, advanced power electronics, and the energy internet, highlighting their potential to revolutionize the power sector. Volume 1 covers smart grid architecture and communications, sensing devices, WAM, bad data detection, energy management and smart distribution, role of energy storage, and integration of plug-in electric vehicles. Volume 2 conveys multi-agent-based control, compressive sensing, stability enhancement, security analysis and related policies and regulations, controlled islanding, machine learning for solar power prediction, use of blockchain technology in smart grids, and peer-to-peer and peer-to-grid (P2G) energy trading. These volumes are intended as references for researchers in academia and industry who are involved with power grids, related power electronics and distributed renewable generation. Policy makers, grid operators, and advanced students in electrical and energy engineering, will also find useful and relevant content here.