The text comprehensively explains different pathways for hydrogen production, storage and transportation technologies, safety issues, and various applications in different industries. It further covers hydrogen storage methods, such as physical storage, chemical storage, and biological storage. The book also explains different transportation methods, like pipeline transportation, compressed gas transportation, and liquid hydrogen transportation. This book: Discusses solar-integrated hydrogen production for transportation fuels and power-to-gas systems with solar-generated hydrogen. Covers the optimization process for green hydrogen production and focuses on analyzing how factors such as renewable energy prices impact the cost of green hydrogen production. Explores green hydrogen revolution, proton exchange membrane (PEM) fuel cells, solid-state storage of hydrogen energy, electrolysis-based hydrogen production, and exergy analysis of turbocharged engine. Explains hazards associated with hydrogen transportation, managing hydrogen leaks and explosions, and regulatory frameworks for safe hydrogen transportation. Illustrates applications of hydrogen use in diverse industries, such as automotive, agriculture, aerospace, and water treatment. It is primarily written for senior undergraduates, graduate students, and academic researchers in the fields of energy engineering, industrial engineering, mechanical engineering, environmental engineering, and aerospace engineering.