This book focuses on the business operation of virtual power plants. Both of the business models and reliable operation of virtual power plants have been addressed with engineering practices. This is achieved by providing an in-depth study on several major topics such as load forecasting for distributed energy resources, business model and practice of virtual power plants, the business operation of virtual power plants participating in demand response, and auxiliary service market. The dynamic pricing strategy of virtual power plants and reliable operation of power systems with virtual power plants are provided as well. The comprehensive and systematic treatment in business operation of virtual power plants is one of the major features of the book, which is particularly suited for readers who are interested to learn operation mechanisms of virtual power plants. The book benefits researchers, engineers, and graduate students in the fields of energy internet, electrical engineering, andbusiness administration, etc.