The scope and understanding of the water-electricity nexus
The scope and understanding of the water-electricity nexus
复制标题
水电关系的范围和理解
DOI：
10.1016/j.resconrec.2019.104453
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Xu Ming
中科院分区：
文献类型：
--
作者：
Wang Chunyan;Lin Lu;Olsson Gustaf;Liu Yi;Xu Ming
几十年来，与发电和消费相关的用水一直是研究的重点。本研究从电力生产和消费的角度概述了水电关系。在生产方面，总结和比较了各地区的发电量和相关用水量。重点分析了水资源与发电量的空间不匹配问题。据估计，用水量将成为某些地区未来发电的重要制约因素。为解决这一问题，对技术节水潜力进行了评估。在消费方面，空间制冷/供暖和水加热被确定为家庭最终用户一级最重要的关联节点。本文概述了理论联系概念和实际决策方面的差距。美国和欧洲有关水电关系的现有政策也进行了审查。本研究强调，发电和制冷技术极大地影响了用水和发电的提取;当地水资源和发电存在巨大的空间差异;居民行为和家用电器对家庭水电关系有影响;水和能源之间的耦合缺乏综合管理，迫切需要。
The water use associated with electricity generation and consumption has been the focus of research for decades. This study provides an overview of the water–electricity nexus from the perspectives of electricity production and consumption. In terms of production, the electricity generation and associated water use for various regions are summarized and compared. The spatial mismatch between water resource and electricity generation is highlighted and analyzed. It is estimated that the water use will be a vital constraint for future electricity generation in some regions. The technological water saving potential is evaluated to address this issue. In terms of consumption, space cooling/heating and water heating are identified as the most significant nexus-related coupled nodes at the household end-use level. Gaps in the theoretical nexus concept and practical policymaking are summarized herein. Existing policies in the US and Europe related to the water–electricity nexus are also reviewed. This study highlights that the generation and cooling technologies greatly influence the water consumption and withdrawal for electricity generation; tremendous spatial disparities of local water resources and electricity generation exist; residential behavior and household appliances have an impact on the household water–electricity nexus; and comprehensive management of the couplings between water and energy is lacking and urgently required.