An overview of the power supply system installed during the EBS upgrade will be presented. The focus will be on the operation of the storage ring main magnet power supplies. A comparison between the old and the new power supply structure will be given. The current topology of the system and the main issues since the beginning of the EBS operation will be presented in detail. The description of a power supply hot swap system to enhance the global system availability and reliability will also be provided. Finally, the perspectives for the future will be discussed.