Economic analysis of distributed solar photovoltaics with reused electric vehicle batteries as energy storage systems in China

Bo Bai, Siqin Xiong, Bo Song and Ma Xiaoming

Renewable and Sustainable Energy Reviews, 2019, vol. 109, issue C, 213-229

Abstract: As the development of distributed solar photovoltaics (DSPV), battery energy storage systems are growing in popularity to promote the performance of DSPV, for both mitigating the impact on the grid and increasing the economic performance. In the meantime, reused batteries retired from electric vehicles provide another option for energy storage systems. In this paper, the economic performance evaluated by net present value of DSPV with reused batteries as energy storage systems (RBESS) is studied at the provincial level in China, so as to depict a comprehensive understanding of the current DSPV status and the development potential of RBESS in China. Instead of only focusing on the role of increasing the percentage of self-consumption (Model 1), a combined usage strategy of RBESS (Model 2) is also proposed. Moreover, the residual value of lithium-ion batteries is taken into consideration in this paper. Our results show that for the residential sector, only a small number of areas can benefit from RBESS under Model 2, while none can benefit under Model 1. Only when the price of RBESS decreases to 200 CNY/kWh, the profitability could be nationwide. However, for the commercial and industrial sector, the performance of RBESS is much better. In the majority of areas, integrating RBESS with DSPV is already profitable.

Keywords: Distributed solar photovoltaics; Reused batteries; Net present value; Energy storage systems; Self-consumption; Load-leveling (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (26)

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DOI: 10.1016/j.rser.2019.03.048

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