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Towards an integrated design of renewable electricity generation and storage systems for NZEB use: A parametric analysis
Journal of Building Engineering ( IF 6.4 ) Pub Date : 2021-09-10 , DOI: 10.1016/j.jobe.2021.103288
Giovanni Tumminia 1 , Francesco Sergi 1 , Davide Aloisio 1 , Sonia Longo 2 , Maria Anna Cusenza 2 , Francesco Guarino 2 , Salvatore Cellura 3 , Marco Ferraro 1
Affiliation  

Although nearly zero energy buildings have attracted growing research attention, literature analysis shows that only a limited number of researches try to couple load match/grid interaction issues and environmental impacts in early design stages. The study proposes a novel multidisciplinary design approach that allows to integrate these two conflicting aspects aiming to find trade-offs. The proposed approach has been applied to a building case study, equipped with a photovoltaics system without energy storage. The results show that even though on yearly basis the energy use (5,290 kWhe) is largely overcome by the on-site energy generation (8069 kWhe), an oversized PV system alone may not be the best solution for reducing the environmental impact of the building sector, besides not being very efficient in improving load match. Afterwards, a parametric analysis was carry out analysing three redesign scenarios, obtained varying the sizes of the PV system and installing different sizes of the storage systems. The results show that the use of storage systems, in addition to decrease the grid dependency, can increase the environmental benefits arising from the renewable energy sources (e.g. there is a decrease of global warming potential of 48%, compared to the base case, with 5.28 kWp PV system and 10 kWh storage system). Conflicting results are found according to specific impact categories and this suggests the need for a holistic approach, including different domains and indicators. In this context, the proposed approach can contribute to the transition toward low-carbon energy technologies, by supporting researches and designers to take environmentally sound considerations.



中文翻译:

面向 NZEB 使用的可再生发电和存储系统的集成设计:参数分析

尽管近零能耗建筑引起了越来越多的研究关注,但文献分析表明,只有少数研究试图在早期设计阶段将负载匹配/电网交互问题与环境影响结合起来。该研究提出了一种新颖的多学科设计方法,可以整合这两个相互冲突的方面,以求取舍。所提出的方法已应用于建筑案例研究,该案例配备了没有储能的光伏系统。结果表明,即使每年的能源使用(5,290 kWhe)在很大程度上被现场发电(8069 kWhe)所克服,但仅靠超大光伏系统可能不是减少建筑物对环境影响的最佳解决方案扇区,除了在改善负载匹配方面效率不高。然后,进行了参数分析,分析了三种重新设计方案,获得了不同尺寸的光伏系统和安装不同尺寸的存储系统。结果表明,存储系统的使用,除了降低电网依赖性,还可以增加可再生能源带来的环境效益(例如,与基本情况相比,全球变暖潜势降低了 48%, 5.28 kWp 光伏系统和 10 kWh 存储系统)。根据特定的影响类别发现了相互矛盾的结果,这表明需要一种整体方法,包括不同的领域和指标。在这种情况下,所提议的方法可以通过支持研究人员和设计师考虑环境无害的因素,促进向低碳能源技术的过渡。

更新日期:2021-09-10
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