An analysis of the implementation of a hybrid renewable-energy system in a building by considering the reduction in electricity price subsidies and the reliability of the grid
作者机构：Department of electrical engineeringUniversitas Muhammadiyah YogyakartaBantulYogyakarta 55183Indonesia
出 版 物：《Clean Energy》 (清洁能源（英文）)
年 卷 期：2023年第7卷第5期
页 面：1125-1135页
核心收录：
学科分类：0820[工学-石油与天然气工程] 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] 080802[工学-电力系统及其自动化] 08[工学]
主 题：renewable energy sensitivity analysis photovoltaic biogas electricity subsidy reliability of the grid
摘 要：This article discusses the implementation of a hybrid renewable-energy system to satisfy the electricity requirements of a building.The analysis is based on optimization calculations performed using HOMER software.The components of the simulated hybrid renewable-energy system include photovoltaics,generators powered by biogas,converters and a grid.The input data utilized by the HOMER software are derived from measurements and surveys.The electric load curve is obtained through measurements at the location of the case study.Through surveys,parameters pertaining to the components of the hybrid renewable-energy system were gathered.The analysis was carried out using two sensitivity variables,namely electricity price and grid reliability.On the basis of these two sensitivity variables,optimal system configuration,net present cost,energy cost,return on investment,internal rate of return and payback period were analysed.The results of the analysis indicated that reducing subsidies,which results in higher electricity prices,provided opportuni-ties for economically competitive hybrid renewable-energy systems.With electricity prices of US$0.094/kWh,the return of investment and the internal rate of return increased to 15%and 19%,respectively,and the payback period decreased to 5.3 years.When a hybrid renewable-energy system is implemented in regions with low grid reliability,the same phenomenon occurs.
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