气候变化领域集成服务门户(CCPortal): Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch

CCPortal

DOI	10.1080/14693062.2018.1546164
	Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch
	Lu H.; Wang C.; Li Q.; Wiser R.; Porter K.
发表日期	2019
ISSN	14693062
起始页码	623
结束页码	635
卷号	19 期号:5
英文摘要	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. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
英文关键词	Curtailment; dispatch; flexibility; grid integration; power sector reform; renewable energy
语种	英语
scopus关键词	alternative energy; coal supply; coal-fired power plant; comparative study; energy policy; power generation; reform process; wind power; China
来源期刊	Climate Policy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153403
作者单位	College of Environmental Sciences and Engineering, Peking University, Beijing, China; Department of New Energy and Statistics, State Grid Energy Research Institute, Beijing, China; Electricity Markets & Policy Group, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Exeter Associates, Columbia, MD, United States
推荐引用方式 GB/T 7714	Lu H.,Wang C.,Li Q.,et al. Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch[J],2019,19(5).
APA	Lu H.,Wang C.,Li Q.,Wiser R.,&Porter K..(2019).Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch.Climate Policy,19(5).
MLA	Lu H.,et al."Reducing wind power curtailment in China: comparing the roles of coal power flexibility and improved dispatch".Climate Policy 19.5(2019).