There are lots of problems in China's photovoltaic trading market such as the subsidy default

the increasing number of users and the difficulty of settlement. Blockchain technology has become a new type of distributed account book with its features of own security

decentralization and difficult tampering. Domestic and foreign scholars have proposed architectural ideas for the application of blockchain technology in the energy field. This paper proposes a photovoltaic trading mechanism based on blockchain incentives

which provides a trading method that encourages users to be free

flexible

and perform single settlement. The smart contract

encryption mechanism

consensus mechanism and transaction process of the dynamic trading system are designed. The trading mechanism based on reputation value can effectively restrain the selfish behavior of each node and encourage the nodes to transmit actively in the peer-to-peer(P2P)network. Finally

a 21-node network topology is simulated. The results show that

with the trading mechanism based on reputation value

users can obtain more satisfactory transactions.