Reconfiguring China’s Transmission Framework with Dynamic Storage Sharing for Spatial Power Balance
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ABSTRACT
Achieving carbon neutrality has been a demanding task for China, especially with the renewable-induced spatial power mismatch across provinces. Current solutions including storage co-deployment and Ultra-high-voltage (UHV) line construction impose exorbitant costs while still being insufficient in capacity, casting doubts on its long-term sustainability. Herein, we propose a bilayered reconfiguration of the current transmission framework. On the lower layer, stable power is scheduled for transmission via existing UHV lines; on the upper layer, renewable energy is physically stored and scheduled for ground transportation across the provinces via dynamic CBS sharing. CBSs relieve the transmission capacity shortage by 65.6% while achieving full renewable accommodation, meanwhile addressing renewable stochasticity and intermittency. The framework is also economic to all participants, while contributing to environmental protection, social welfare and security. Our proposal sheds light on addressing spatial power imbalance imposed by heavy renewable penetrations, and may enlighten other countries with bulk power transmission needs. -
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REFERENCES
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Liu H., Ding Y. and Hu Q. (2025). Reconfiguring China’s Transmission Framework with Dynamic Storage Sharing for Spatial Power Balance. Energy Use 1:100018. https://doi.org/10.59717/ipj.energy-use.2025.100018
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Liu H., Ding Y. and Hu Q. (2025). Reconfiguring China’s Transmission Framework with Dynamic Storage Sharing for Spatial Power Balance. Energy Use 1:100018. https://doi.org/10.59717/ipj.energy-use.2025.100018
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Figure 1.
Reconfiguration of the national power transmission framework for China
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Figure 2.
Changes in the dynamics of cross-provincial power transmission as per the proposed framework
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Figure 3.
Details on the proposed business model embedded in the upper layer of the reconfigured framework
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Figure 4.
Economic evaluations of the reconfigured framework across provinces and years
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Figure 5.
Evaluations of the proposed power transmission framework, particularly in terms of its contributions to the society