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Demonstrates reduced operational expenses in integrated energy systems, indicating efficiency gains.
To facilitate the operation of an integrated energy system under low-carbon economic conditions within the green certificate and carbon trading market, this study introduces an optimization model for such systems. The model incorporates a green-carbon interaction mechanism and integrates a Concentrating Solar Power Plant (CSPP) as a core component. Firstly, for the same emission reduction value inherent in green certificate-carbon trading, a green certificate-ladder carbon trading interaction mechanism is proposed, under which green certificates not covered by system’s quotas can be converted into free carbon quotas. Secondly, to enhance the extensive adoption of solar energy resources and mitigate the operational stress on thermal power generation within conventional units, a CSPP system incorporating a concentrating solar collector field, generator units, and thermal energy storage has been introduced. Next, targeting the optimization potential of the electrical heat load side, a holistic demand response strategy is introduced, and based on this, a comprehensive energy system optimization operation model is established, targeting the reduction of daily operational expenses as its primary optimization goal. Lastly, the proposed framework's effectiveness is confirmed through various scenario simulations. Sensitivity assessments are also conducted regarding the stepped carbon pricing baseline and the green certificate quota coefficient.
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Wang et al. (2026) studied this question.
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