Life-cycle assessment of gravity energy storage systems for large-scale application

•Techno-economic analysis of gravity energy storage.•Energetic performance of Gravity Energy Storage (GES) with a wire rope hoisting system.•Energy storage LCOE and LCOS comparison•GES and GESH offer interesting economic advantages for the provision of energy arbitrage service. Interest in energy st...

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Bibliographic Details
Published in:Journal of energy storage 2021-08, Vol.40, p.102825, Article 102825
Main Authors: Berrada, Asmae, Emrani, Anisa, Ameur, Arechkik
Format: Article
Language:English
Subjects:
Economic
Energy storage
GESH, LCOS
Gravity
LCOE
NPV
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Summary:•Techno-economic analysis of gravity energy storage.•Energetic performance of Gravity Energy Storage (GES) with a wire rope hoisting system.•Energy storage LCOE and LCOS comparison•GES and GESH offer interesting economic advantages for the provision of energy arbitrage service. Interest in energy storage systems has been increased with the growing penetration of variable renewable energy sources. This paper discusses a detailed economic analysis of an attractive gravitational potential energy storage option, known as gravity energy storage (GES). The economic performance of this energy storage system is compared to other alternative energy storage technologies such as pumped hydro energy storage (PHES) and compressed air energy storage (CAES). Moreover, a life cycle costs and levelized cost of electricity delivered by this energy storage are analyzed to provide expert, power producers, and grid operators insight about the economic implications of this grid-scale gravitational energy storage technology. Depending on the considered scenarios and assumptions, the levelized cost of storage of GES varies between 7.5 €ct/kWh and 15 €ct/kWh, while it is between 3.8 €ct/kWh and 7.3 €ct/kWh for gravity energy storage with wire hoisting system (GESH). The LCOS of GES and GESH were then compared to other energy storage systems. The obtained results show that GESH is very cost-competitive with pumped hydro and Compressed Air Energy Storage technologies; while GES is competitive with PHES and may be cost-competitive with CAES depending on the operation cycles. The performed analysis has also shown that both GES and GESH offer interesting economic advantages for the provision of energy arbitrage service.
ISSN:2352-152X
2352-1538
DOI:10.1016/j.est.2021.102825