This book comprises select proceedings of the 3rd International Conference on Recent Advances in Bio-energy Research (ICRABR 2022), providing comprehensive coverage on bio-energy-related fields and prospects of bio-energy in terms of waste management for energy generation, storage, and application. The content includes themes such as optimisation of energy systems, recent advances in biofuels and bioenergy, biomass hybrid systems, energy efficiency, electrochemical conversion of biofuels to renewable energy, energy management and policy, and the inter-linkages between energy and sustainable development. This book is of use to academics, researchers, consultants, and policymakers alike.