This book explores the concept of re-engineering underutilized renewable energy concepts and applications in Africa, focusing on technical solutions that can drive sustainable energy development in the region. It delves into topics such as biomass applications and technical innovations, including the potential for advancements in biomass utilization practices. The book also examines the potential of hydrogen as a clean energy carrier for Africa and evaluates hydrogen storage technologies. It explores waste-to-energy sources and waste recovery technologies, highlighting their role in sustainable resource management. Additionally, the book discusses cutting-edge technical solutions for renewable energy, including emerging technologies that can enhance the performance and scalability of renewable energy systems in Africa.