As China's electricity market reform progresses,market-based customers can not only participate in medium-to-long-term markets but also engage in the spot market based on their electricity procurement needs.The decomposition strategy for long-term contract energy is directly related to electricity purchasing decisions in the spot market.To rationalize curve decomposition of medium-to-long-term energy of market-based customers and reduce their overall electricity costs,this paper proposes a curve decomposition strategy for medium-to-long term contract energy of market-based customers considering price uncertainty in spot market.Drawing upon information gap deci-sion theory(IGDT),it proposes two types of uncertainty analysis models—risk-averse models and risk-seeking mod-els—to establish a quantitative relationship between the total electricity costs of market-based customers and the ac-curacy of spot market price predictions.Case study results demonstrate that the proposed strategy can effectively sup-port energy decomposition decisions for customers while considering price uncertainty in spot market.
price uncertainty in spot marketenergy contract decompositionIGDTrisk-averse modelrisk-seeking model
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