Energy transition: Connotations, mechanisms and effects

Currently, the research agenda of energy transition is gaining momentum. This paper conducts a comprehensive review of this body of research by presenting a framework that describes the connotations, mechanisms, and effects of energy transitions. The study concludes that the energy transition will lead to the reconstruction of energy system elements beyond the energy sector, with the dual connotations of explicit transition and implicit transition. The explicit transition is usually captured by statistic data and information, for instance, energy utilization type, structure, form, transportation mode, and spatial pattern. The implicit transition involves shifts in energy security, geopolitical structure, energy power, energy justice, and energy governance, which receives relatively less attention in current literature. The energy transition is a highly socialized process, driven by many intertwined factors such as technological innovation, market mechanisms, policy arrangements, and sociocultural factors, triggering profound socio-economic and ecological effects. Looking ahead, it is urgent to pay attention to the multi-scale effects of energy transition, avoid the risks brought by energy transition, and ultimately achieve just energy transition. This paper provides a novel perspective and contributes to the literature on theoretical understanding and advancement of energy transition.