期刊
THERMAL SCIENCE AND ENGINEERING PROGRESS
卷 7, 期 -, 页码 311-325出版社
ELSEVIER
DOI: 10.1016/j.tsep.2018.06.005
关键词
Compressed Air Energy Storage (CAES); Economic assessment; Energy storage systems; Wind energy; Large scale renewable energy
资金
- University of Nottingham
Compressed Air Energy Storage (CAES) is widely recognized as a viable solution for large-scale grid integrated renewable energy systems in terms of load levelling to solve/minimize the intermittency effect of renewable energy systems especially with increased penetration of renewables to the grid. This study assesses the economic value of adding compressed air energy storage (CAES) plant to a renewable energy system and how this impacts the overall financial appeal of the system at hand, taking Egyptian grid as a case in point. Numerical modelling using MATLAB was performed to analyse the benefits of adding a CAES system to planned wind farms in Egypt by 2020 for both load-levelling as well as optimizing economic benefit. The results show that the addition of a CAES system would increase the profitability for the new Tariff for wind systems set by the Egyptian government with a NPV of $306 m compared to a NPV of $207 m of a stand-alone wind system at the end of 25 years of operation. Also, the economic benefits increase if the government provides subsidies for new installations of renewable energy systems, or by lowering the interest rates.
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