This paper reviews the current technological innovations in renewable energy. It explores the latest advancements in wind turbine technology, solar energy systems, bio energy, and other renewable sources. The review also discusses the potential impact of these innovations on the transition to a sustainable and carbon–neutral energy system. Additionally, the review examines the economic and environmental implications of these technological innovations and provides recommendations for further research and development in the field of renewable energy. The findings of this review highlight the importance of technological innovations in advancing renewable energy and the potential they hold for achieving a sustainable and carbon–neutral energy system.