<p>This power supply system (100) supplies electric power from a plurality of wind power generators (G21)-(G23) with big generation fluctuations to electric chargers (81)-(83) as contracted electric power consumption sources that allow a plurality of supplied electric power components to fluctuate. An electric power supply distribution means (73) distributes electric power with big fluctuations generated by the wind power generators (G21)-(G23) to each contracted electric power consumption source so as to satisfy both "a contracted short time fluctuation allowance rate" and "a contracted long time fluctuation allowance rate" that are agreed with a manager of each contracted electric power consumption source, changes a gate phase of a magnetic energy regeneration switch (MERS) (30) connected with each contracted electric power consumption source, and adjusts an electric power consumption amount of each contracted electric power consumption source, thereby carrying out "generated electric power amount following consumption".</p>
