Contract for difference (CfD) energy decomposition model for maximizing social benefit in electricity market

摘要

During a process of energy transaction in electricity market, in order to ensure electrical safety and prevent excessively quick growth of electricity price, the concept of contract for difference (CfD) is introduced. Considering the electricity characteristics of large consumers, this paper is in the views of both generators and large consumers which sign CfDs with Grid Corporation respectively, but the signed CfDs only set rules for contract price and total contract energy in settlement period. Because market prices are different at different period, the total contract energy should be decomposed to each period for settlement of CfDs. So a CfD energy decomposition model, whose objective is to maximize social benefit, is built to settle the CfDs at each period. After running the model, the optimal result which means maximal social benefit is obtained and it is 28.1% more than that by average decomposition.