Abstract: Methods and systems are provided for transmitting a charging recommendation from a cloud-based server to an electric vehicle (EV), where the charging recommendation includes preferred options for charging stations and/or charging times. In one example, a method comprises receiving, at a cloud-based charging recommendation system of an EV charging system, a set of battery charging parameters from the EV via a secure anonymous connection; determining a set of candidate charging stations for the EV, based on the received battery charging parameters; estimating sustainability, cost, and preference metrics for each candidate charging station; ranking the future charge events based on the sustainability, cost, and preference metrics; selecting one or more charge options for the EV from the ranked future charge events; generating the charging recommendation with the one or more charge options; and transmitting the charging recommendation to the EV via the secure anonymous connection.