This is a compilation of chapters from a book on smart grids, focusing on advancements in network infrastructure, control mechanisms, and security protocols. Key themes include the integration of renewable energy sources (RESs) like solar and wind power, the crucial role of energy storage technologies (batteries, supercapacitors, etc.) in managing the intermittency of RESs, and the development of robust communication and security systems to ensure reliable and efficient power delivery. The text explores various energy management strategies, including demand-side management and demand response, analyzes the economic and environmental implications of smart grids, and delves into technical aspects like optimal power flow and power quality enhancement techniques. Ultimately, the book aims to provide a comprehensive overview of the technological and policy challenges involved in modernizing power grids for a more sustainable and resilient future.