To solve the difficult problems of renewable energy consumption

hydrogen energy storage and transportation

an off grid integrated system for wind

solar

hydrogen and ethanol is proposed. The system operates offline

utilizing wind and photovoltaic power generation to provide electrical energy. By using batteries and hydrogen storage tanks as energy storage and hydrogen storage equipment

electricity and hydrogen energy is stably supplied in a peak shaving and valley filling manner

ensuring the stable and continuous production of methanol in the electrolytic cell and methanol generation equipment. A mathematical model for solar energy hydrogen storage alcohol is constructed with the goal of maximizing the total system revenue

and the optimal equipment capacity and operation scheduling of the system is determined through mixed integer linear programming algorithm combined with real solar energy data analysis. The operating strategy and the system energy of the system on a typical day is analyzed

and finally the economic performance of the produced green methanol is investigated. The results indicate that

the system can switch operating states reasonably based on changes in external conditions

thus to achieve energy balance in the system. On the premise of meeting various constraints

the utilization rate of renewable energy is improved and the leveling cost of methanol production in the system is reduced. This study proposes a feasible technical route for the consumption of new energy and the utilization of hydrogen energy

and provides certain guidance for the construction of related demonstration projects.