An integrated source-grid-load planning model at the macro level: Case study for China's power sector

The increasingly serious renewable generation curtailment in many countries reflects the drawbacks of current planning approach, which separates power source planning and grid expansion planning. In addition, resources in demand side should no longer be ignored in power planning with gradually mature policies related to energy efficiency and demand response. To fill this gap, this paper proposes a novel power system planning approach and builds an integrated source-grid-load planning model at the macro level. The model considers all the available elements in source side, grid side and load side together to find an optimal development solution from the perspective of the whole power system. The effectiveness and superiority of this model is verified through the comparison among separated source-grid planning, integrated source-grid planning and integrated source-grid-load planning in the case study. Then, an optimum development path for China's power sector till 2030 worked out by the model proposed in this paper is presented. Based on the in-depth analysis of the planning results, policy recommendations are also provided.

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