A Techno-Economic Assessment of a Second-Life Battery and Photovoltaics Hybrid Power Source for Sustainable Electric Vehicle Home Charging

This study discusses the use of a retired battery from an electric vehicle for stationary energy storage electric vehicle charging in a residential household. This research provides a novel in-depth examination of the processes that may be necessary to investigate the life loss of a battery, whether new or used. The main contribution is to promote the feasibility of the application from both a technical and economic point of view. The semi-empirical models are then utilized to analyze the life fading that is used in economic studies. In terms of lower initial investment costs for the battery and solar photovoltaics, the numerical calculation demonstrates that the used second-life battery with a DOD of 85% has more advantages over a new battery in the same condition. Additionally, compared to a new battery, a second-life battery gradually loses life and benefits from recycling after a projected 10-year lifespan. These results support the feasibility of the project. A discussion of project hurdles is included in which the hybrid converter modification may be achieved. Policymakers are encouraged to keep this valuable scheme in mind for the sake of margin profit and environmental preservation.

Automated summary

This study explores the potential use of retired electric vehicle batteries for stationary energy storage in residential households. It provides detailed analysis of battery life loss investigation and demonstrates the feasibility of this application from both technical and economic perspectives. The numerical calculations indicate that a used second-life battery with 85% depth of discharge has more advantages over a new battery, with the additional benefit of recycling after a projected 10-year lifespan. The study also discusses potential hurdles and encourages policymakers to consider this valuable scheme for margin profit and environmental preservation.