This book focuses on building air conditioning demand response and power storage batteries as the resources that make up the virtual power plant. The research and its outcomes presented in this book provide an overview of virtual power plant technology. The contents focus on both fundamentals and advanced topics such as role of central power supply control office, battery charge and discharge control system, power system simulation, system design for practical application, etc. This is a highly informative and carefully presented book, providing insight to students, engineers, and researchers in the field of power systems