Techno-economic analysis of the Li-ion batteries and reversible fuel cells as energy-storage systems used in green and energy-efficient buildings
作者机构：Khalifa University of Science and TechnologyAbu DhabiUAE
出 版 物：《Clean Energy》 (清洁能源（英文）)
年 卷 期：2021年第5卷第2期
页 面：273-287页
核心收录：
学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0808[工学-电气工程] 08[工学] 0807[工学-动力工程及工程热物理]
基 金：funding from Khalifa University-Grant number 8474000238/FSU-2020-14 to conduct this research
主 题：green-building energy-storage systems fuel cell hydrogen Li-ion batteries reversible fuel cells
摘 要：Green buildings have become broadly adopted in commercial and residential sectors with the objective of minimizing environmental impacts through reductions in energy usage and water usage and,to a lesser extent,minimizing environmental disturbances from the building *** this paper,we develop and discuss a techno-economic model for a green commercial building that is 100%powered by a photovoltaic(PV)system in stand-alone configuration.A medium-sized office building in El Paso,TX was modelled to rely on a photovoltaic system to supply all of its electricity needs either directly from the PV system or through an energy-storage system(ESS)using Li-ion batteries(LIBs)or reversible fuel cells(RFCs).Cost results show that a 400-kW PV system can generate electricity at a cost of 2.21 cents/kWh in El Paso,TX and the average levelized cost of energy storage(LCOS)using 450-kW RFC is~31.3 cents/kWh,while this could reach as low as 25.5 cents/kWh using a small LIB *** the RFC provides the flexibility required to meet building-energy demand,LIBs may not be able to meet building needs unless the storage size is increased substantially,which in turn incurs more energy-storage cost,making LIBs less favourable from an economic *** analysis revealed that capital cost,discount rate and expected system lifetime play key roles in shaping the LCOS in both systems.
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