Optimal Trading Strategy of Inter-and Intra-provincial Medium-and Long-term Power Exchange Considering Renewable Portfolio Standard

The Energy Consumption Guarantee Mechanism (ECGM) of renewable energy requires the prior consumption ratio of clean energy, and regulates the proportion of renewable energy power in each province. The implementation of Renewable Portfolio Standard (RPS) wm have a great impact on the energy portfolio management and trading strategy of electricity in the medium-and long-term electricity market. Grid companies (or power exchange center), as the organizers of the medium-and long-term market and the main organizations responsible for renewable energy consumption, need a set of scientific trading strategies to coordinate the planning of inter-and intra-provincial power exchange arrangements. In this paper, the risk of uncertainty in the power output of renewable energy is analyzed, and the cost of risk is introduced into the optimization model to schedule the consumption ratio of renewable energy in the province, namely arranging the amount of renewable and nonrenewable energy electricity, and the amount of electricity outside the province. Illustrative cases are performed to verify the effectiveness of the model and to provide a reference for the organizers’ decision-making of medium and long-term power exchange.