气候变化领域集成服务门户(CCPortal): Implications of water constraints on electricity capacity expansion in the United States

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DOI	10.1038/s41893-019-0235-0
	Implications of water constraints on electricity capacity expansion in the United States
	Liu L.; Hejazi M.; Iyer G.; Forman B.A.
发表日期	2019
ISSN	2398-9629
起始页码	206
结束页码	213
卷号	2 期号:3
英文摘要	The development of new electricity generation capacity is constrained by water resource availability. However, the sufficiency of available water resources is rarely incorporated into the planning of electricity capacity expansion in the United States. Previous studies on the implications of water constraints on US electricity generation are limited in terms of scale and robustness. Here, we extend previous studies by including physical water constraints within a state-level model of the US energy system embedded within a global integrated assessment model (GCAM-USA) that integrates both supply and demand effects under a consistent framework. We show that water constraints have two general effects across the United States: (1) to increase the cost of electricity generation, which results in slightly reduced electrification of end-use sectors, and (2) to incentivize early retirement of water-intensive technologies before the end of their designed lifetimes, while simultaneously boosting investment in less water-dependent technologies. Our results suggest that water availability constraints may cause substantial capital stock turnover and result in non-negligible economic costs for the western United States, whereas fewer impacts may be anticipated in the eastern United States. Our work emphasizes the need to integrate water availability constraints into electricity capacity planning and highlights the state-level challenges to facilitate regional strategic resource planning. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Costs; Economics; Electric power generation; Expansion; Investments; Capacity expansion; Cost of electricity; Electricity capacity planning; Electricity generation; Electricity generation capacity; Global integrated assessments; Resource availability; Western United States; Water resources
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163313
作者单位	Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Department of Civil and Environmental Engineering, University of Maryland, College Park, MD, United States
推荐引用方式 GB/T 7714	Liu L.,Hejazi M.,Iyer G.,et al. Implications of water constraints on electricity capacity expansion in the United States[J],2019,2(3).
APA	Liu L.,Hejazi M.,Iyer G.,&Forman B.A..(2019).Implications of water constraints on electricity capacity expansion in the United States.Nature Sustainability,2(3).
MLA	Liu L.,et al."Implications of water constraints on electricity capacity expansion in the United States".Nature Sustainability 2.3(2019).