When it no longer provides the level of performance required for the operation of an electric car, the battery can be used in less demanding environments (single-family homes, office and residential buildings, or even highway charging stations). This is a battery’s second life. Among the possibilities, a stationary energy battery storage system, for example, consists of adding batteries to a charging station to store the low-carbon energy produced by its solar panels, or to store the network’s cheaper electricity during off-peak hours.