In the process of achieving the carbon neutrality goals

green hydrogen production from renewable energy will become a crucial driving force for deep decarbonization and green substitution across multiple industries. Leveraging renewable energy bases to develop large-scale hydrogen production and utilization systems has attracted widespread attention both domestically and internationally. However

existing studies on green hydrogen lack a comprehensive analysis of structure configuration methods

operational strategies

and key technologies for large-scale renewable energy power to hydrogen (ReP2H) systems. To address these issues

firstly

this paper systematically reviews the typical configurations of ReP2H systems and analyzes structure configuration methods suitable for large-scale ReP2H systems. Secondly

this paper reviews the current research status of integration systems and clarifies the development trends to meet the new demands of wide-range

rapid

and efficient operation of water electrolysis systems. Thirdly

in response to the policy associated with the grid integration of large-scale ReP2H systems

this paper summarizes the typical operation strategies of both grid-connected and off-grid systems. Finally

this paper explores key technologies essential to ensuring the safe

stable

and efficient operation of ReP2H systems.