Energy supply system, energy type selection server, and energy supply method

摘要

PPROBLEM TO BE SOLVED: To provide an energy supply system capable of totally optimizing energy, e.g. always reducing the total energy cost for a consumer who uses a plurality of types of energy. PSOLUTION: The energy supply system collects a unit price of each of a plurality of types of energy including power energy from a power supplier and power energy from a generator at a previously defined time interval, selects a combination of the types of energy at which an energy cost is least expensive, among the plurality of types of energy, based on a load measured by a load measurement means and a unit price of each of the plurality of types of energy at a predetermined time interval, and supplies the selected energy to the consumer. PCOPYRIGHT: (C)2009,JPO&INPIT