气候变化领域集成服务门户(CCPortal): Sailing towards sustainability: offshore wind's green hydrogen potential for decarbonization in coastal USA

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DOI	10.1039/d4ee01460j
	Sailing towards sustainability: offshore wind's green hydrogen potential for decarbonization in coastal USA
	Balaji, Rishi Kaashyap; You, Fengqi
发表日期	2024
ISSN	1754-5692
EISSN	1754-5706
英文摘要	In the pursuit of achieving net-zero emissions to combat climate change, green hydrogen is expected to be an important decarbonization vector for hard-to-abate sectors. Scaling up green hydrogen production necessitates significant resources such as renewable energy and water, presenting an opportunity for a synergistic integration with offshore wind-a largely untapped energy source with abundant potential and declining costs. In this study, we employ a systematic assessment, utilizing an optimization framework and life cycle assessment, to evaluate the economic and environmental implications of green hydrogen production offshore. We examine the two delivery pathways of direct hydrogen transport - liquefied hydrogen and compressed gaseous hydrogen for 30 coastal states in the United States and further extend the analysis to the regional level, conceptualizing offshore hydrogen hubs. Our findings reveal that under optimistic scenarios of hydrogen uptake, 75% of the nation's serviceable consumption potential of hydrogen can be fulfilled through the deployment of 0.96 TW of offshore wind capacity. This leads to a significant increase in the utilization of offshore wind resources from 1% at present to over 22% of its technical resource potential. Our assessment predicts a delivered cost range of $2.50-$7.00 per kg H2 and life cycle greenhouse gas emissions below the 4 kg CO2e per kg H2 benchmark at the coast for hydrogen produced offshore. These estimates are robust over a large range of demand scenarios. Furthermore, we delve into the factors that lead to the spatial differentiation in these metrics and discuss key policy support measures to bolster the growth potential of these nascent sectors. A systems optimization framework and life cycle assessment to evaluate economic and environmental implications of green hydrogen produced offshore predicts a delivered cost of $2.50-$7.00 per kg H2 and life cycle GHG emissions below the 4 kg CO2e per kg H2 benchmark.
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS类目	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号	WOS:001227964500001
来源期刊	ENERGY & ENVIRONMENTAL SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303108
作者单位	Cornell University; Cornell University; Cornell University
推荐引用方式 GB/T 7714	Balaji, Rishi Kaashyap,You, Fengqi. Sailing towards sustainability: offshore wind's green hydrogen potential for decarbonization in coastal USA[J],2024.
APA	Balaji, Rishi Kaashyap,&You, Fengqi.(2024).Sailing towards sustainability: offshore wind's green hydrogen potential for decarbonization in coastal USA.ENERGY & ENVIRONMENTAL SCIENCE.
MLA	Balaji, Rishi Kaashyap,et al."Sailing towards sustainability: offshore wind's green hydrogen potential for decarbonization in coastal USA".ENERGY & ENVIRONMENTAL SCIENCE (2024).