Patent ID: 7711655

Claim:
A system for executing a reservation support of a purchase quantity of a backup power purchased by a power supplier who combines a power generated by a private power generator and a backup power purchased from others and supplies the combined powers to electric utility customers, the system comprising: at least one memory device storing a database having a plurality of prediction models which predict demand of customers, and storing a demand track record database with past actual demands of the customers: at least one processor configured for calculating a plurality of each past demand prediction results on the basis of the plurality of prediction models; storing the plurality of each past demand prediction results in a database; selecting an optimum prediction model by comparing the plurality of each past demand prediction results and the past actual demands of the customers; storing the optimum prediction model in a database; calculating future demand prediction and a fluctuation range of the future demand prediction on the basis of the optimum prediction model; storing the future demand prediction and the fluctuation range of the future demand prediction in a database; determining a reservation quantity of a backup power so that a summation of three costs, a reservation purchase cost of a backup power to be reserved and purchased, a private power generation cost to be required when the private power generator is operated to generate electric power, and a current day purchase cost of a backup power to be purchased on a current day without a reservation, for the future demand prediction, is minimized, considering the fluctuation range of the future demand prediction and its frequency of occurrence; and electronically communicating the reservation quantity of a backup power.