Power-saving control method and power-saving control system

A power-saving control system comprising:

• a transmitter that transmits, to a consumer, a first power-saving request and a second power-saving request requesting the consumer to start power saving of electric power consumed by an electric power load in a power-saving period, the first power-saving request being transmitted within a predetermined period immediately preceding the power-saving period, and the second power-saving request being transmitted before the predetermined period, the electric power load comprising a first electric power load including a cooling apparatus, and a second electric power load different from the first electric power load;
• a memory that stores instructions;
• a processor that, when executing the instructions stored in the memory, performs operations including:
• calculating a first baseline for the power-saving period in accordance with the first power-saving request, the first base line being calculated based on a first amount, which is an average of amounts of electric power consumed by the first electric power load during a plurality of periods on a plurality of days previous to a day including the power-saving period, each of the plurality of periods being a same time period as the power-saving period, and a second amount of electric power consumed by the second electric power load during a period before the power-saving period on the day including the power-saving period;
• and
• calculating a second baseline for the power-saving period in accordance with the second power-saving request, the second baseline being calculated based on a third amount, which is an average of amounts of electric power consumed by the first electric power load and the second electric power load during the plurality of periods on the plurality of days previous to the day including the power-saving period,
• wherein electric power consumed by electric power load is reduced during the power-saving period in accordance with the first power-saving request or the second power-saving request, the processor further performs operations including:
• acquiring an actual amount of electric power consumed by the electric power load during the power-saving period, during which the electric power consumed by the electric power load is reduced;
• and
• calculating a payment for the consumer based on a difference between the actual amount of electric power consumed by the electric power load during the power-saving period and one of the first baseline and the second baseline.