Simulation Research On Carbon Emissions Trading Based On Blockchain

Global warming caused by greenhouse gases poses a potential threat to human survival,it is one of the problems that needs to be solved urgently.Blockchain technology has the characteristics of decentralization,data security and traceability,it can achieve automatic quota certification and settlement,providing a new direction for carbon emissions trading.Scholars in the energy field have discussed the application of blockchain technology in carbon emissions trading.However,the current research focuses on qualitative analysis such as application scenarios and prospect,lacks quantitative analysis of blockchain-based carbon emissions trading.This paper provides a quantitative analysis of blockchain-based carbon emissions trading through the Repast simulation platform.Firstly,it designs the blockchain-based carbon emissions trading simulation framework from a macro perspective,including identity and quota certification,quota trading,risk prevention and smart contracts management.Then,it establishes a blockchain-based carbon emissions trading simulation model and formulates the behavior rules of the government,investor and firm agents and market transaction processes.Finally,it simulates the carbon emissions trading based on public chain and private chain on the Repast platform,and analyzes the simulation results.The simulation results show that blockchain-based carbon emissions trading can promote firms to improve technology and reduce carbon emissions effectively.Affected by the relationship between supply and demand,the volume of transactions in the market gradually decrease,and market prices continues to increase.As marginal abatement costs continue to increase,firms are more inclined to complete emission reduction targets through the purchase of quotas,the number of firms choosing to improve technology continues to decrease in market.The time cost of blockchain-basedcarbon emissions trading is related to the number of transactions,the time cost increases with the number of transactions,and the number of transactions in the early stage has a significant effect.Compared with the carbon emissions trading based on public chain,carbon emissions trading based on private chain has a lower time cost.In addition,the time cost of carbon emissions trading based on public chain is also affected by the number of verification nodes,the larger the number of verification nodes,the greater the time cost.