Volume 55

Research and Suggestions on Economic and Comprehensive Benefit Evaluation of LNG Cold Energy Utilization in the Context of Energy Transition Zhang Chao, Zhou Chan, Yu Jiaojiao, Weng Ranran, Zheng Qiaozhen, Zhao Borui

Abstract

In the context of the accelerating global sustainable and low-carbon energy transition, maximizing the utilization of the cold energy value inherent in LNG holds significant importance for enhancing the competitiveness of corporate industrial chains and high-quality energy mitigation development. Given the diverse types, varying scales, and complex business cooperation models of LNG cold energy utilization, this research focuses on four major types: cold energy power generation, cold energy storage station, cold water aquaculture, and liquid air energy storage. By considering policy, methodology, and models, and taking into account economic, energy, and environmental factors, the study adhered to the principle of “seeking common ground while reserving differences, emphasizing key points”. Optimal techno-economic evaluation methods and key evaluation indicators were selected, and constructs energy substitution modules, carbon sink trading modules, and policy guarantee modules were built. An economic and “3E” comprehensive benefit evaluation method for LNG cold energy utilization project was formed, and suggestions for promoting the development of cold energy business from a technical and economic perspective were also provided. The research findings could promote the implementation of LNG cold energy utilization project, providing reliable references and insights to prevent the waste of cold energy resources

Keywords LNG cold energy utilization, recovery and utilization, economic benefits, comprehensive benefits