This book presents a comprehensive academic examination of sustainable energy practices within a rapidly transforming global context. It critically explores the principles, systems, and technologies that underpin the transition towards low-carbon and resource-efficient societies. Attention is given to patterns of energy production, distribution, and consumption, alongside the measurement and evaluation of environmental impact through recognised metrics. The discussion extends to the integration of energy efficiency in built environments, transport systems, and digital infrastructures, reflecting the growing interdependence between technological innovation and sustainability objectives. It also considers the role of behavioural change, knowledge systems, and organisational strategies in shaping responsible energy use. By combining theoretical insights with applied perspectives, the text provides a balanced understanding of both the opportunities and constraints associated with sustainable energy adoption.

The book aims to equip readers with analytical tools and practical awareness to engage with contemporary energy challenges and to contribute meaningfully to the development of efficient, resilient, and environmentally responsible energy systems worldwide.