The relevant concepts of the medium and long-term contract transfer transaction mechanism in power market are introduced

and the participation principles of energy storage in the medium and long-term contract transfer transactions are formulated on the basis of the study on the existing contract transfer mechanism. The feasibility of energy storage participating in the contract transfer transaction is analyzed from the three aspects of technology

economy and policy. By taking pumped storage as an example

the transaction model for energy storage in the process of contract transfer is established

and a quotation strategy for energy storage parties based on a bargaining game model is proposed. Finally

the calculation results of a provincial hydro-thermal power contract transfer transaction are used as a comparison to verify the feasibility and economy of energy storage participating in contract transfers. The research result is expected to provide a certain reference for the flexible transformation of the medium and long-term market contract transfer transaction mechanism.