Application analysis and economic evaluation of typical electricity-hydrogen coupling scenarios

As a zero-carbon secondary energy，hydrogen is of significance to build a low-carbon sustainable energy system and accelerate the transformation of energy system in China. Based on this background this paper this paper focuses on typical electricity-hydrogen coupling scenarios， systematically expounds the concept and key features of electricity-hydrogen coupling scenarios， and proposes five typical application scenarios of electricity-hydrogen coupling system in hydrogen refueling stations， villages， hydrogen industrial parks， industry zone， and islands. Through the construction of economic evaluation index system， taking the hydrogen refueling station as an example， its economy is demonstrated. Through sensitivity analysis， the selling price of hydrogen， investment cost， electricity price， and daily hydrogenation amount have a relatively obvious impact on the economy of electricity-hydrogen coupling application. Among them， the influence of hydrogen selling price and daily hydrogenation volume is greater， so reasonable hydrogen pricing and stable hydrogenation volume are crucial for the commercial development of electricity-hydrogen coupling in the future