Technology and Application of Multi‐Energy System: An Engineering Study in China

ABSTRACT Multi‐energy system (MES) is crucial for the development of smart cities. This paper summarises the research progress and achievements from an engineering case study in China which aims at enhancing MES energy efficiency. Key theories and technologies were tested at an MES demonstration site in Hunan, China, using both software and hardware systems which improve significantly in energy efficiency, carbon savings, environmental and economic benefits. Specifically, the optimal operation modes proposed in this paper achieves a best‐case scenario of 9.97 tons of CO 2 savings, 26.4% lower than conventional systems. The findings provide crucial guidance for policymakers and industry stakeholders which aims to implement sustainable energy solutions in future urban planning.