In the electricity market where the renewable energy quota system is implemented on the electricity selling side, the electricity selling company can complete the quota of consumption and realize profit through electricity trading, consumption trading, green certificate trading and other forms. Based on the all day renewable energy generation curve trading mode, this paper puts forward the corresponding trading rules, which can effectively promote the active consumption of renewable energy in the power selling side. This paper comprehensively compares the trading income of electricity selling companies in electricity market, green certificate market and transferable load market. Aiming at the maximum profit, it studies the operating strategy of electricity selling companies, which can provide reference for multi market trading decision-making of electricity selling companies.

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With the continuous promotion of power market reform, the spot market of electric power is gradually opened, and more and more flexible renewable energy can participate in market transactions. In order to ensure the safe and stable operation of power grid, virtual power plant has been developed. In the spot market, virtual power plants gather different resources and take part in market transactions as a whole. This not only benefits the virtual power plant itself, but also the whole power system. In order to study the impact of the spot market on the virtual power plant, this paper starts with the basic theory of the virtual power plant, then combined with the development of the spot market, studies the basic process of the virtual power plant participating in the market transaction, and explores the future development trend of the virtual power plant.

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