POWER SUPPLY SYSTEM, POWER SUPPLY MANAGEMENT DEVICE, POWER SUPPLY METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To effectively use power generated by a power generation device.SOLUTION: A power supply system includes: a power generation device for power generation; a power storage device connected to a power supply line supplying power from the power generation device to a load to charge and discharge power; a DC power supply device for outputting to a power supply line a first output voltage obtained by converting AC power supplied from a commercial power system into DC power; and a power supply management device for controlling at least the first output voltage. The power supply management device includes a voltage control unit for controlling the first output voltage to a voltage lower than a second output voltage, which is a voltage determined according to a surplus power generation amount relative to a consumption amount consumed in the load, among a power generation amount generated by the power generation device, and is output from the power generation device to the power supply line.