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ORIGINAL RESEARCH article

Front. Energy Res.
Sec. Sustainable Energy Systems
Volume 12 - 2024 | doi: 10.3389/fenrg.2024.1450765

Research on Supply-Demand Balance in China's Five Southern Provinces Amidst Fluctuations in Regional Wind and Solar Power Generation and Transmission Faults

Provisionally accepted
Jincan Zeng Jincan Zeng 1Lang Tang Lang Tang 2*Minwei Liu Minwei Liu 3Guori Huang Guori Huang 1Nan Shang Nan Shang 1Xi Liu Xi Liu 1Songyan Ren Songyan Ren 4Wang Peng Wang Peng 4*
  • 1 Energy Development Research Institute,China Southern Power Grid, Guangzhou, China
  • 2 Key Laboratory of Natural Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS), Guangzhou, China
  • 3 Plannning & Research Center, Yunnan Power Grid Corp, Yunnan, China
  • 4 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS), Guangzhou, Guangdong Province, China

The final, formatted version of the article will be published soon.

    To investigate the supply-demand balance of regional power systems under extreme scenarios, this study employs the high-resolution power optimization model SWITCH-China to simulate the regional heterogeneity and randomness of extreme weather events in detail. Focusing on the five southern provinces, this study explores various impacts on the power generation side and the grid side under scenarios of reduced wind and solar power output, transmission line failures, and combined scenarios, proposing strategies for constructing a new power system. The main conclusions are: the reduction in wind and solar power output significantly affects provinces with a high proportion of these installations, like Guizhou, necessitating other stable power generation forms to compensate. Transmission line failures notably impact provinces like Guangdong, which rely heavily on imported electricity, requiring increased investment in new wind and solar installations and more self-generated power to offset the reduction in imported electricity. The combination of these factors amplifies their individual impacts, leading to the highest carbon reduction and electricity costs. The simulation results of this study are valuable for China's five southern provinces in coping with extreme scenarios. As these provinces work on building a new power system and gradually retire fossil fuel units, they should expand the number and capacity of inter-provincial high-voltage transmission lines while considering system economics. Additionally, accelerating the deployment of energy storage is crucial for maintaining power system stability.

    Keywords: Wind and solar power output, Transmission failures, Source-grid-storage-load, SWITCH-China, Carbon constraints, Renewable Energy

    Received: 18 Jun 2024; Accepted: 14 Aug 2024.

    Copyright: © 2024 Zeng, Tang, Liu, Huang, Shang, Liu, Ren and Peng. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Lang Tang, Key Laboratory of Natural Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS), Guangzhou, China
    Wang Peng, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS), Guangzhou, Guangdong Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.