Power management apparatus, priority control method and program

Provided is a power management apparatus for determining an order of priority with respect to power supply to a consuming device at a target location in a power system that includes a plurality of locations between which power can be interchanged, the target location including at least the consuming device, a power generation unit that generates power from natural energy, a power storage unit, and a commercial power source. The power management apparatus includes a determination unit for determining an order of priority among a plurality of controlled objects including at least power supply from the power generation unit, power supply from the power storage unit, power supply from the commercial power source, and power consumption reduction by transferring a load from the consuming device, and a priority setting unit for setting the order of priority that has been determined by the determination unit for the target location.