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Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch

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  • Hong Lu
  • Caixia Wang
  • Qionghui Li
  • Ryan Wiser
  • Kevin Porter

Abstract

Renewable energy curtailment is a critical issue in China, impeding the country’s transition to clean energy and its ability to meet its climate goals. This paper analyzes the impacts of more flexible coal-fired power generation and improved power dispatch towards reducing wind power curtailment. A unit commitment model for power dispatch is used to conduct the analysis, with different scenarios demonstrating the relative impacts of more flexible coal-fired generation and improved power dispatch. Overall, while we find both options are effective in reducing wind power curtailment, we find that improved power dispatch is more effective: (1) the effect of ramping down coal-fired generators to reduce wind power curtailment lessens as the minimum output of coal-fired generation is decreased; and (2) as a result, at higher wind capacity levels, wind curtailment is much more significantly reduced with improved power dispatch than with decreased minimum output of coal-fired generation.Key policy insights China should emphasize both coal power flexibility and dispatch in its policies to minimize renewable power curtailment and promote clean energy transition.China should accelerate the process of implementing spot market and marginal cost-based economic dispatch, while making incremental improvements to the existing equal share dispatch in places not ready for spot market.A key step in improving of dispatch is incorporating renewable power forecasts into the unit commitment process and updating the daily unit commitment based on the latest forecast result.China should expand the coal power flexibility retrofit programme and promote the further development of the ancillary service market to encourage more flexibility from coal-fired generation.

Suggested Citation

  • Hong Lu & Caixia Wang & Qionghui Li & Ryan Wiser & Kevin Porter, 2019. "Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch," Climate Policy, Taylor & Francis Journals, vol. 19(5), pages 623-635, May.
    • Handle: RePEc:taf:tcpoxx:v:19:y:2019:i:5:p:623-635
    DOI: 10.1080/14693062.2018.1546164
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    Citations

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    Cited by:

    1. Wen, Shiyan & Jia, Zhijie, 2022. "The energy, environment and economy impact of coal resource tax, renewable investment, and total factor productivity growth," Resources Policy, Elsevier, vol. 77(C).
    2. Yang, Dongfeng & Xu, Yang & Liu, Xiaojun & Jiang, Chao & Nie, Fanjie & Ran, Zixu, 2022. "Economic-emission dispatch problem in integrated electricity and heat system considering multi-energy demand response and carbon capture Technologies," Energy, Elsevier, vol. 253(C).
    3. Taohui Li & Yonghao Liu & Aifeng Lv, 2024. "Review of Research on the Present Situation of Development and Resource Potential of Wind and Solar Energy in China," Energies, MDPI, vol. 17(16), pages 1-14, August.
    4. Wu, Qunli & Li, Chunxiang, 2023. "Modeling and operation optimization of hydrogen-based integrated energy system with refined power-to-gas and carbon-capture-storage technologies under carbon trading," Energy, Elsevier, vol. 270(C).
    5. Zhang, Menglin & Wu, Qiuwei & Wen, Jinyu & Pan, Bo & Qi, Shiqiang, 2020. "Two-stage stochastic optimal operation of integrated electricity and heat system considering reserve of flexible devices and spatial-temporal correlation of wind power," Applied Energy, Elsevier, vol. 275(C).
    6. Hu, Junfeng & Yan, Qingyou & Kahrl, Fredrich & Liu, Xu & Wang, Peng & Lin, Jiang, 2021. "Evaluating the ancillary services market for large-scale renewable energy integration in China's northeastern power grid," Utilities Policy, Elsevier, vol. 69(C).
    7. Jiawen Bai & Tao Ding & Zhe Wang & Jianhua Chen, 2019. "Day-Ahead Robust Economic Dispatch Considering Renewable Energy and Concentrated Solar Power Plants," Energies, MDPI, vol. 12(20), pages 1-17, October.
    8. Yin, Guangzhi & Duan, Maosheng, 2022. "Pricing the deep peak regulation service of coal-fired power plants to promote renewable energy integration," Applied Energy, Elsevier, vol. 321(C).
    9. Haonan Zhang & Xingping Zhang & Jiahai Yuan, 2020. "Coal power in China: A multi‐level perspective review," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 9(6), November.
    10. Zhang, Xiaodong & Patino-Echeverri, Dalia & Li, Mingquan & Wu, Libo, 2022. "A review of publicly available data sources for models to study renewables integration in China's power system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 159(C).
    11. Lan, Liuhan & Zhang, Xingping & Zhang, Youzhong, 2023. "Low carbon and efficiency oriented day-ahead joint electrical energy and ancillary services market clearing model for generation-side in China," Energy Economics, Elsevier, vol. 121(C).

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