Modeling and Economic Analysis of Wind-Marine Current-Biogas Integrated Energy System

China’s renewable energy power generation prospects are broad. Therefore, this paper proposes a new energy system that adapts to social development. The system can effectively control energy consumption and further improve energy utilization efficiency. To a certain extent, it can cope with challenges such as surge in energy demand, environmental pollution, and climate change. The use of this system has a certain mitigation effect on coastal areas where electricity is deficient. Not only is it beneficial to the local area economically, but it can also reduce damage to the environment while ensuring power stability. This study proposes a wind-marine current-biogas integrated energy system by summarizing the existing single-energy generation models and some other types of integrated energy systems. At the same time, according to the references, the economic benefits of this system are analyzed. The addition of biogas power generation reduces the instability of marine current power generation and wind power generation to the system. The results show that, in actual production and life, a reasonable allocation of the proportions of the three energy sources can maximize the power generation efficiency of the integrated energy system within a certain cost range.