Capacity Optimization of Distributed Photovoltaic Hydrogen Production and Hydrogenation Electrochemical Energy Storage Integrated Station

Hydrogen energy plays a crucial role in driving energy transformation within the framework of the dual-carbon target. Nevertheless, the production cost of hydrogen through electrolysis of water remains high, and the average power consumption of hydrogen production per unit is 55.6kwh/kg, and the electricity demand is large. At the same time, transporting hydrogen over long distances is difficult and costly. To mitigate the cost associated with hydrogen production and hydrogenation, an integrated station system is being established, aimed at achieving cost reduction. Taking into account the sale price over time and the expenses related to investment, operation, and maintenance of the integrated station, an optimization configuration model of the integrated station is proposed, which takes into account photovoltaic power generation, hydrogen production and hydrogenation and electrochemical energy storage. The cost of system construction and hydrogen production and hydrogenation can be minimized through the allocation of reasonable hydrogen production and hydrogenation system, energy storage capacity and economic operation plan. The example simulation and quantitative analysis further verified the economic feasibility and effectiveness of distributed photovoltaic coupled water electrolysis for hydrogen production, and offers a theoretical foundation for the widespread adoption of distributed photovoltaic technology in hydrogen production and storage, integrating it with hydrogenation facilities.