POWER SUPPLY SYSTEM, SERVER, AND POWER ADJUSTMENT METHOD

A power supply system includes: a power supply facility configured to receive power supply from an external power source and execute power supply to a vehicle traveling in a traveling lane; and a vehicle management apparatus configured to manage a plurality of vehicles configured to use the power supply facility, select adjustment vehicles used for power adjustment of the external power source from among the plurality of vehicles, and when any one of the selected adjustment vehicles has reached a predetermined position in the traveling lane, release the one of the adjustment vehicles that has reached the predetermined position from the power adjustment of the external power source.