Technical and economic assessment of the secondary use of repurposed electric vehicle batteries in the residential sector to support solar energy

Used EV batteries are unsuitable for vehicles, but can be used in secondary applications, such as residential PV energy storage. This paper presents a technical and economic assessment of the reuse of batteries from electric vehicles as a storage system for the residential sector by analysing the cost, the remaining capacity and the lifetime for second applications through the implementation of a degradation model in MATLAB-Simulink. A case study is presented for an average Southern Europe residential building with a photovoltaic system that generates enough energy to ensure the average consumption needs.