A comprehensive review of state-of-the-art combined cooling, heating, and power (CCHP) modeling, optimization, and operation theory and practice, this book is written by an international author team at the forefront of CCHP systems R&D. It offers systematic coverage of mathematical modeling, structure optimization, and CCHP system operation, supplemented with numerous illustrative case studies and examples. The book begins with a survey of CCHP systems from technological and societal perspectives, offering readers a broad overview of the field. It then delves into crucial topics for optimal CCHP operation, presenting new methodologies for modeling, optimization, and control within a unified framework. Innovative solutions to various CCHP systems problems are demonstrated through approaches to optimal power flow, load forecasting, and system operation design.