Energy Sustainability is a subject with many dimensions that spans both production and utilization and how they are linked to sustainable development. More importantly, energy systems are designed, analyzed, assessed and evaluated in accordance to sustainable tools for more sustainable future. This book comprehensively covers these aspects, harmonizing them in a way that offers distinct perspectives for energy, the environment and sustainable development. In addition, it also covers concepts, systems, applications, illustrative examples and case studies that are presented to provide unique coverage for readers.