气候变化领域集成服务门户(CCPortal): Renewable-powered desalination as an optimisation pathway for renewable energy systems: The case of Australia's Murray-Darling Basin

CCPortal

DOI	10.1088/1748-9326/ab57ab
	Renewable-powered desalination as an optimisation pathway for renewable energy systems: The case of Australia's Murray-Darling Basin
	Heihsel M.; Ali S.M.H.; Kirchherr J.; Lenzen M.
发表日期	2019
ISSN	17489318
卷号	14 期号:12
英文摘要	The ecology in the Murray-Darling Basin in Australia is threatened by water scarcity due to climate change and the over-extraction and over-use of natural water resources. Ensuring environmental flows and sustainable water resources management is urgently needed. Seawater desalination offers high potential to deliver water in virtually unlimited quantity. However, this technology is energy-intensive. In order to prevent desalination becoming a driver of greenhouse gases, the operation of seawater desalination with renewables is increasingly being considered. Our study examines the optimisation of the operation of a 100% renewable energy grid by integrating seawater desalination plants and pipelines as a variable load. We use a GIS-based renewable energy load-shifting model and show how both technologies create synergy effects. First, we analyse what quantity of water is missing in the basin in the long run. We determine locations for seawater desalination plants and pipelines to distribute the water into existing storages in the Murray-Darling Basin. Second, we design a pipeline system and calculate the electricity needed to pump the water from the plants to the storages. Third, we use the combined renewable energy load-shifting model. We minimise the total cost of the energy system by shifting energy demand for water production to periods of high renewable energy availability. Our calculations show that in such a system, the unused spilt electricity can be reduced by at least 27 TWh. The electricity system's installed capacity and levelised cost of electricity can be reduced by up to 29%, and 43% respectively. This approach can provide an annual net economic benefit of $22.5 bn. The results illustrate that the expansion of seawater desalination capacity for load-shifting is economically beneficial. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Climate change; Desalination; Load-shifting; Renewable energy; Water management
语种	英语
scopus关键词	Desalination; Greenhouse gases; Pipelines; Renewable energy resources; Seawater; Water conservation; Water management; Load shifting; Murray-Darling Basin; Natural water resources; Renewable energies; Renewable energy systems; Seawater desalination; Seawater desalination plants; Sustainable water resources; Climate change; alternative energy; climate change; desalination; GIS; hydroelectric power; optimization; resource scarcity; sustainable development; water management; water resource; Australia; Murray-Darling Basin
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154266
作者单位	Department of Energy Engineering, Technical University of Berlin, Berlin, Germany; Isa, School of Physics, University of Sydney, Sydney, NSW 2006, Australia; Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, Netherlands
推荐引用方式 GB/T 7714	Heihsel M.,Ali S.M.H.,Kirchherr J.,et al. Renewable-powered desalination as an optimisation pathway for renewable energy systems: The case of Australia's Murray-Darling Basin[J],2019,14(12).
APA	Heihsel M.,Ali S.M.H.,Kirchherr J.,&Lenzen M..(2019).Renewable-powered desalination as an optimisation pathway for renewable energy systems: The case of Australia's Murray-Darling Basin.Environmental Research Letters,14(12).
MLA	Heihsel M.,et al."Renewable-powered desalination as an optimisation pathway for renewable energy systems: The case of Australia's Murray-Darling Basin".Environmental Research Letters 14.12(2019).